US20050149043A1 - Method of implanting an acetabular shell - Google Patents
Method of implanting an acetabular shell Download PDFInfo
- Publication number
- US20050149043A1 US20050149043A1 US10/837,039 US83703904A US2005149043A1 US 20050149043 A1 US20050149043 A1 US 20050149043A1 US 83703904 A US83703904 A US 83703904A US 2005149043 A1 US2005149043 A1 US 2005149043A1
- Authority
- US
- United States
- Prior art keywords
- impactor
- acetabular shell
- engaging head
- acetabulum
- engaging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
- A61F2/4609—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof of acetabular cups
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8872—Instruments for putting said fixation devices against or away from the bone
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/92—Impactors or extractors, e.g. for removing intramedullary devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/34—Acetabular cups
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30604—Special structural features of bone or joint prostheses not otherwise provided for modular
- A61F2002/30616—Sets comprising a plurality of prosthetic parts of different sizes or orientations
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2002/4635—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor using minimally invasive surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2002/4681—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor by applying mechanical shocks, e.g. by hammering
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2002/4685—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor by means of vacuum
Abstract
A method and apparatus for implanting acetabular components into an acetabulum utilizing a minimally invasive incision. The method and apparatus utilize a subatmospheric pressure formed in a hollow passage of an elongate body to secure an acetabular shell to a shell-engaging head removably attached to a coupler end of the elongate body. Liner-engaging heads may also be removably attached to the coupler end to install socket liners into an implanted acetabular shell. The elongate body may comprise a bent portion to allow access to the acetabulum through a minimally invasive incision.
Description
- This application claims the benefit of U.S. Provisional Application No. 60/534,431, filed Jan. 5, 2004, and U.S. Provisional Application No. 60/541,344, filed Feb. 2, 2004, which applications are hereby incorporated by reference herein in their entireties, including but not limited to those portions that specifically appear hereinafter, the incorporation by reference being made with the following exception: In the event that any portion of the above-referenced provisional applications is inconsistent with this application, this application supercedes said above-referenced provisional applications.
- Not Applicable.
- 1. The Field of the Invention
- The present disclosure relates generally to surgical instruments, and more particularly, but not necessarily entirely, to an apparatus and method for implanting surgical prostheses during surgery.
- 2. Description of Related Art
- The number of total hip replacement surgeries has increased dramatically in recent years. Hip replacement surgery involves implanting a prosthesis to replace an ailing hip joint. The prosthesis is typically made up of two parts: an acetabulum component, or socket portion, which replaces the acetabulum and a femoral component, which replaces the femoral head. The acetabulum component may in turn comprise a metal shell, hereinafter referred to as an acetabular shell, with a plastic or ceramic inner socket liner, hereinafter referred to as a socket liner.
- The steps for replacing the hip begin with the surgeon making an incision over the hip joint. There are several different approaches used to make the incision, usually based on the surgeon's training and preferences. After the incision is made, the ligaments and muscles may be separated to allow the surgeon access to the bones of the hip joint. Once the hip joint is entered, the femoral head may be dislocated from the acetabulum. Then the femoral head may be removed by cutting through the femoral neck with a saw. After the femoral head is removed, the cartilage may be removed from the acetabulum using a power drill and a special reamer. The reamer may be used to form the bone in a hemispherical shape to exactly fit the acetabular shell of the acetabular component. Once the right size and shape is determined for the acetabulum, the acetabular shell may be inserted into place. In the uncemented variety of artificial hip replacement, the acetabular shell may be simply held in place by the tightness of the fit or with screws to hold the metal shell in place. Insertion of the acetabular shell may be done by hand or by use of a hand tool that grips the shell. Often, the surgeon may set the acetabular shell into the acetabulum by impacting it through the use of a mallet and an impaction device. The surgeon may then insert a socket liner into the acetabular shell. Once the acetabular shell and socket liner are in place, the surgeon may then replace the femoral head with a femoral component and the surgeon may reassemble the hip joint. The surgeon may also test the movement of the hip joint before closing the incision.
- One of the major difficulties confronting the surgeon during hip replacement surgery is the relatively inaccessible location of the acetabulum making it difficult for the surgeon to correctly position the acetabular components. In the past, the solution has been to make a relatively large incision to allow the surgeon complete and unfettered access to the hip joint. However, from the patient's perspective, a large incision is undesirable as it increases the trauma to the patient and the recovery time.
- Attempts have been made in the previously available devices to provide a hand tool to assist in holding and positioning an acetabular shell. U.S. Pat. No. 5,116,339 (granted May 26, 1992 to Glock) discloses an installation tool having an expanding head for engaging the acetabular shell. The acetabular shell is released by contracting the head when the shell is in position. The head is expanded and contracted by means of a threaded shaft with a knob such that rotation of the knob correspondingly expands or contracts the head. U.S. Pat. No. 4,305,394 (granted on Dec. 15, 1981 to Bertuch) discloses an acetabular shell positioning device comprising an interchangeable ball and flange for engaging the inner cavity of the acetabular shell by a mechanical engagement. A coupling rod with a handle is manipulated in order to engage and release the acetabular shell.
- U.S. Pat. No. 3,859,992 (granted on Jan. 14, 1975 to Amstutz) discloses a suction-operated holding and positioning instrument for use in inserting an acetabular shell during hip surgery. The Amstutz device includes a permanently affixed shell-engaging head and an external suction source for forming a suction force between the shell-engaging head and the shell. The Amstutz device further provides a port controlled by a mechanical valve for selectively breaking the suction force formed between the shell-engaging head and the shell. The Amstutz device does not appear to be able to be used with cementless acetabular shells that require impaction.
- The above devices are characterized by several disadvantages including complicated designs involving several moving parts that both increase manufacturing costs as well as making the device more difficult to use during an operation. In particular, the Amstutz device disadvantageously requires a connection to an external suction source. The Amstutz device further does not allow for interchangeable shell-engaging heads to allow the device to be used with different sized acetabular shells. Finally, it appears that none of the above devices can be used to both implant an acetabular shell and a socket liner.
- In addition, the shape of the devices dictate the use of relatively large incisions during surgery. One attempted improvement over the previously available devices to reduce the size of the required incision is disclosed in U.S. Patent Publication Application 2003/0229356 (published Dec. 11, 2003 to Dye). The Dye apparatus includes a curved impaction instrument for aligning and impacting the acetabular component into the acetabulum. The curved shape of the apparatus allows for a minimally invasive incision in the patient.
- Similarly, U.S. Patent Publication Application 2003/0050645 (published Mar. 13, 2003 to Parker et al.) discloses a curved impactor having a hollow outer shaft and a flexible drive shaft disposed in the outer shaft. The flexible drive shaft is connected at one end to a coupler, and at the opposite end is a thumb wheel, such that rotation of the thumb wheel rotates the drive shaft and engages the coupler to an acetabular shell.
- Unfortunately, despite their advantages, both the Dye and Parker et al. apparatuses still has several shortcomings. In particular, the attachment of the acetabular shell to the device requires a mechanical engagement of the shell to the device. Dye is particularly disadvantageous due to the fact that it does not teach a remote release of the acetabular shell once it is installed in the acetabulum. Parker et al., on the other hand, is disadvantageous due to its overly complicated remote release mechanism.
- The prior art is thus characterized by several disadvantages that are addressed by the present disclosure. The present disclosure minimizes, and in some aspects eliminates, the above-mentioned failures, and other problems, by utilizing the methods and structural features described herein. The features and advantages of the disclosure will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by the practice of the disclosure without undue experimentation. The features and advantages of the disclosure may be realized and obtained by means of the instruments and combinations particularly pointed out in the appended claims.
- The features and advantages of the disclosure will become apparent from a consideration of the subsequent detailed description presented in connection with the accompanying drawings in which:
-
FIG. 1 is an exploded perspective view of one exemplary embodiment made in accordance with the present disclosure. -
FIG. 2 is a cross-sectional view of one exemplary embodiment of an impactor. -
FIG. 2A is a cross-sectional, break-away view of an alternative embodiment of the impactor ofFIG. 2 . -
FIG. 3 is an end view of the impactor illustrated inFIG. 2 made in accordance with the present disclosure. -
FIG. 4A is a top view of an exemplary engaging head made in accordance with the present disclosure. -
FIG. 4B is a side view of an exemplary engaging head made in accordance with the present disclosure. -
FIG. 4C is a bottom view of an exemplary engaging head made in accordance with the present disclosure. -
FIG. 5 is a cross-sectional side view of the impactor, shell-engaging head and an acetabular shell made in accordance with the present disclosure. -
FIG. 6 is a cross-sectional side view of another embodiment of an engaging head made in accordance with the present disclosure. -
FIG. 7 is a cross-sectional side view of still another embodiment of an engaging head made in accordance with the present disclosure. -
FIG. 8A is a side view of an exemplary embodiment of a liner-engaging head made in accordance with the present disclosure made in accordance with the present disclosure. -
FIG. 8B is a top view of the liner-engaging head made in accordance with the present disclosure. -
FIG. 8C is a bottom view of the liner-engaging head made in accordance with the present disclosure. -
FIG. 9 is a cross-sectional side view of the liner-engaging head mounted on the impactor made in accordance with the present disclosure. -
FIG. 10 is a perspective view of an exemplary embodiment of an impactor having a positioning handle made in accordance with the present disclosure. - For the purposes of promoting an understanding of the principles in accordance with the disclosure, reference will now be made to the embodiments illustrated in the drawings and specific language will be used to describe the same. It will nevertheless be understood that no limitation of the scope of the disclosure is thereby intended. Any alterations and further modifications of the inventive features illustrated herein, and any additional applications of the principles of the disclosure as illustrated herein, which would normally occur to one skilled in the relevant art and having possession of this disclosure, are to be considered within the scope of the disclosure claimed.
- It is also to be understood that the terminology employed herein is used for the purpose of describing particular embodiments only and is not intended to be limiting since the scope of the present disclosure will be limited only by the appended claims and equivalents thereof.
- It must be noted that, as used in this specification and the appended claims, the singular forms “a,” “an,” and “the” include plural referents unless the context clearly dictates otherwise. In describing and claiming the present disclosure, the following terminology will be used in accordance with the definitions set out below. As used herein, the terms “comprising,” “including,” “containing,” “characterized by,” and grammatical equivalents thereof are inclusive or open-ended terms that do not exclude additional, unrecited elements or method steps.
- Applicant has discovered a simple and easy to use apparatus for positioning and implanting an acetabular shell into the a patient's acetabulum during hip replacement surgery using minimally invasive surgical techniques. Applicant's disclosure may also be utilized to implant a socket liner in an implanted acetabular shell. Importantly, Applicant's disclosure does not require a mechanical engagement means to engage and hold the acetabular shell during implantation. Instead, Applicant's disclosure teaches the use of subatmospheric pressure to hold the acetabular shell on an engaging head. One aspect of the disclosure is unique in that an external suction source may not be required in order to create the subatmospheric pressure. Applicant's disclosure may also comprise a valveless and open port sealable by a finger for allowing the subatmospheric pressure to be created and to be broken, to thereby selectably release the acetabular shell from an engaging head. In addition, another aspect of the Applicant's disclosure may permit the use of interchangeable engaging heads thereby permitting the implantation of acetabular shells and socket liners of different sizes with the same apparatus.
- As used herein, the term “minimally invasive incision” means an incision as is known in the art to reduce trauma in the patient, for example an incision ranging between about two and one-half inches and about five and one-half inches. As used herein, the term “pressure-maintaining seal” means a seal that inhibits airflow to a degree sufficient to enable a non-atmospheric pressure to be established and maintained at a non-atmospheric level, whether the non-atmospheric pressure is constant or varies within a non-atmospheric range.
- Referring now to
FIG. 1 ,reference numeral 8 generally refers to an acetabular shell impactor assembly pursuant to one embodiment of the Applicant's disclosure. Theassembly 8 may comprise an impactor 10 and a tool or engaging head, such as a shell-engaginghead 18, disposed on theimpactor 10. The impactor 10 may comprise anelongate body 12 extending from adistal end 11 to aproximal end 13. Acoupler end 14 and ahead 16 may be disposed on thedistal end 11 and theproximal end 13, respectively. Theelongate body 12 may have ahollow passage 54 in its interior extending between thecoupler end 14 and thehead 16 as can best be seen inFIG. 2 , and saidhollow passage 54 may be closeable. - Referring back to
FIG. 1 , theelongate body 12 may further comprise afirst portion 20 extending from theproximal end 13 along alongitudinal axis 40 towards thecoupler end 14. Thefirst portion 20 may be substantially straight and may be used as a handle by a surgeon during surgery to assist in positioning theimpactor 10. In particular, a surgeon grasping the handle near theproximal end 13 may be able to place the thumb of the hand grasping the handle over theport 42 located on thetop surface 17 of thehead 16, in order to seal theport 42 with a pressure-maintaining seal and thereby close thehollow passage 54 when an implant such asshell 62 is disposed on the engaginghead 18. - A
second portion 22 of theelongate body 12 may extend between thefirst portion 20 and thecoupler end 14. Thesecond portion 22 may form a bend in theelongate body 12 such that thesecond portion 22 may, if desired, deviate from and return to thelongitudinal axis 40. Thesecond portion 22 may comprise afirst segment 23A, asecond segment 23B, and athird segment 23C as shown inFIG. 1 . Thefirst segment 23A may be connected to thefirst portion 20 at an angle such that thefirst segment 23A departs from thelongitudinal axis 40. Thesecond segment 23B may be connected to thefirst segment 23A. Thesecond segment 23B may be substantially parallel to thelongitudinal axis 40. Thethird segment 23C may be connected to thesecond segment 23B at an angle such that thethird segment 23C is directed back towards thelongitudinal axis 40 in the direction of thecoupler end 14. In one embodiment of the present disclosure, thesecond segment 23B may extend substantially parallel to the longitudinal axis 40 a distance d, that may be at least 10 percent of a distance d2 extending between theproximal end 13 and thedistal end 11 of the impactor 10 along thelongitudinal axis 40, as shown inFIG. 1 . - The bend in the
second portion 22 may be sized and shaped such that thecoupler end 14 can be positioned inside of the patient while thehead 16 is positioned outside of the patient. It will be appreciated by those skilled in the art that the bend in thesecond portion 22 may allow an acetabular shell to be positioned and impacted into a reamed acetabulum through a minimally invasive incision. Further, the bend in the second portion allows the impactor 10 to be positioned so as not to interfere with other anatomical structures around the acetabulum while the acetabular shell is brought into and implanted into the acetabulum. Further, the bend may allow an almost linear transfer of an impaction force from thehead 16 to an acetabular shell along thelongitudinal axis 40 without disturbing the surrounding anatomical structures. - In will be appreciated that the bend may be located on the impactor 10 at different locations along the
elongate body 12 to facilitate varying surgical techniques. Further, the bend may be curved, elliptical, piecewise linear, or circular in shape with a constant or varying curvature. In this regard, it will be appreciated that thesecond portion 22 may have alternative embodiments other than then bend as described above. For example, thesecond portion 22 may be curved, arced or circular. In some embodiments, thesecond portion 22 may even be straight. It should also be noted that theelongate body 12 may be of modular or one piece construction. The modular construction may include a combination of linear or non-linear segments. It will be understood that the bend and theelongate body 12 may constitute a means for positioning an acetabular shell into an acetabulum through a minimally invasive incision. - As mentioned, the
head 16 may be disposed on theproximal end 13 of theelongate body 12. As can best be seen inFIG. 3 , thehead 16 may comprise atop surface 17 that may be planar, and anannular rim 24. Thetop surface 17 may be of sufficient size to receive an impaction force from a surgical mallet or the like. Theannular rim 24 may protect the hand of the surgeon holding the impactor 10 from missed or glancing blows from the surgical mallet. - In addition, in the center of the
top surface 17 may be aport 42 as viewed inFIG. 3 . Theport 42 may be in fluid communication with thehollow passage 54 in theelongate body 12 as is best shown inFIG. 2 . Theport 42 may be sized and positioned in thetop surface 17 such that a thumb can placed over theport 42 to thereby create a pressure-maintaining seal. Theport 42 may be situated along thelongitudinal axis 40. It should be noted, that it is within the scope of this disclosure that the position of theport 42 may be located anywhere on thehead 16 or theelongate body 12. For example, in reference toFIG. 2A , it will be appreciated that a port 42 a may be formed to extend through theelongate body 12 in a radial direction, in lieu ofport 42 inFIG. 2 . - The
port 42 may be valveless and open. As used herein, the term “open” means in fluid communication with the atmosphere such that the atmosphere may enter thehollow passage 54 through theport 42 when theport 42 is not sealed. Moreover, while it is less desirable, a mechanical valve as is known in the art may be used to operate and seal theport 42, but typically theport 42 may be sealed with the thumb of a surgeon as described above. It will be understood that theport 42 may constitute a means for selectively breaking a subatmospheric pressure in thehollow passage 54. - The
coupler end 14 of the impactor 10 as shown inFIG. 1 may be utilized to removably and interchangeably attach the engaging head capable of engaging a surgical implant, such as a shell-engaginghead 18 or a socket-liner-engaging head 58 (seeFIGS. 7 and 8 ). Thecoupler end 14 may comprise anannular flange 26 extending radially from thelongitudinal axis 40. The side of theannular flange 26 facing away from thedistal end 11 may form aseat 27 against which an engaging head may be oriented. - Extending from the middle of the
seat 27 along thelongitudinal axis 40 and in a direction away from thedistal end 11 may be anextension member 28. Theextension member 28 may extend in a substantially perpendicularly direction from theseat 27 and may be substantially cylindrical in shape but it will be appreciated by those skilled in the art that other shapes may be permissible that are consistent with the present disclosure. - The
extension member 28 may comprise an outer surface having a forward-most annular groove and a rear-most annular groove each of which are adapted to receive aresilient member 30, such as an o-ring. Anexposed end 31 of theextension member 28 may have aport 32 located thereon in fluid communication withhollow passage 54 in theelongate body 12 as may be observed best inFIG. 2 . Theport 32 may be centered on or off of thelongitudinal axis 40. - As will be discussed in more detail below, the
extension member 28 may be sized and shaped to slidably and removably engage an engaging head, such as a shell-engaginghead 18 or a socket-liner-engaging head 58 (seeFIGS. 7 and 8 ), by a pressure-maintaining seal. It should be noted, however, that other methods of attaching an engaging head to thecoupler end 14 are known to those skilled in the art that fall within the scope of this disclosure. For example, an engaging head may rotatably engage thecoupler end 14. Also, an engaging head may be permanently mounted onto thecoupler end 14. Alternatively, the engaging head and the impactor 10 may be constructed as a one-piece unitary member. Moreover, with respect to theresilient members 30, a pressure-maintaining seal may be formed by using either a singleresilient member 30, or a pair ofresilient members 30 as shown most clearly inFIG. 2 , or some other plurality ofresilient members 30, may be positioned in a variety of locations either on the engaging head or thecoupler end 14 as is known in the art to facilitate the formation of a pressure-maintaining seal between thecoupler end 14 and the engaging head. Further, it will be appreciated that theresilient members 30 may not be required at all for achieving the pressure-maintaining seal. It will be understood that thecoupler end 14 may constitute a means for selectively engaging any one of a plurality of engaging heads by a pressure-maintaining seal. - A cross-sectional view of the impactor 10 is shown in
FIG. 2 . As previously mentioned, thehollow passage 54 extends from thedistal end 11 to theproximal end 13 of theelongate body 12 through both thefirst portion 20 and thesecond portion 22.Port 42 may be positioned in thetop surface 17 of thehead 16 and may be interconnected with thehollow passage 54 by afluid communication path 43. Likewise,port 32 may be positioned in the exposedend 31 and may be interconnected with thehollow passage 54 by afluid communication path 33. In addition,port 42 andport 32 may constitute the only egresses from thehollow passage 54. It will be observed, that bothport 42 andport 32, as well asfluid communication paths longitudinal axis 40. - The size of the
ports hollow passage 54. As explained above,port 42 may be configured and sized such that it may be sealed by a thumb of a surgeon. As will be explained in greater detail below,port 32 may be configured and sized to align with a fluid communication path in an engaging head. Typically,fluid communication path 43 is through thehead 16 whilefluid communication path 33 is through thecoupler end 14. It will be appreciated, however, that it is a feature of this disclosure that theports impactor 10. It will be understood that thehollow passage 54 may constitute a means for forming a subatmospheric pressure. -
Annular flange 26 may extend radially from thelongitudinal axis 40 while extendedmember 28 may extend parallel and along theaxis 40 away from thedistal end 11.Seat 27 and exposedend 31 may be perpendicular to thelongitudinal axis 40.Resilient members 30 on theextended member 28 may be radially positioned from theaxis 40. -
FIGS. 1, 4A , 4B, and 4C show an isometric view, a top view, side view and a bottom view, respectively, of one embodiment of the shell-engaginghead 18 which, as mentioned above, may be removably attachable to thecoupler end 14 of the impactor 10. The shell-engaginghead 18 may comprise abase portion 48 and atip portion 34 extending from asurface 50 of thebase portion 48. Thetip portion 34 may be substantially partially spherical, such as a substantially hemispherical. Thetip portion 34 may extend such that is substantially centered on thesurface 50 of thebase portion 48. - The
tip portion 34 may further comprise anannular groove 35 on its outer surface 37 that may be adapted to receive a resilient member 36 (not shown inFIG. 4A, 4B or 4C), such as an o-ring. Aport 38 may be positioned in the outer surface 37. Located in arearmost portion 52 of thebase portion 48 may be a recessedportion 46 having aport 39 in fluid communication withport 38 on the outer surface 37. - Looking now to a cross-sectional view of the engagement of the engaging
member 18 and thecoupler end 14, the recessedportion 46 may slidably engage theextended member 28 as shown inFIG. 5 . The rearmost of theresilient members 30 on theextension member 28 may engage an annular locking grove 44 formed in aside wall 47 of the recessedportion 46 in order to form a friction fit to hold the engagingmember 18 on thecoupler end 14. The frontmostresilient member 30 on theextension member 28 may also engage theside wall 47 of the recessedportion 46 which may provide an additional seal as well as a friction fit to hold the engaging head onto thecoupler end 14. It will be appreciated that the engagement between the rearmost of theresilient members 30 and the locking groove 44 may also form a pressure-maintaining seal. - The
rearmost portion 52 of thebase portion 48 may abut directly against theseat 27 of theannular flange 26 when the shell-engaginghead 18 is installed on thecoupler end 14. This interaction may serve to properly orient the shell-engaginghead 18. Likewise, the exposedend 31 of theextension member 28 may abut against a bottom portion 56 of the recessedportion 48. - It will be observed that when the shell-engaging
head 18 is properly installed onto thecoupler end 14, thatport 32 is in alignment and adjacent withport 39 such thatport 38 is in direct fluid communication with thehollow passage 54. In this regard, thefluid communication path 33 may be interconnected with afluid communication path 60 extending fromport 38 toport 39. - In the above described arrangement, the shell-engaging-
head 18 may be removed from the impactor 10 by using sufficient force to pull it off. It will be appreciated that the force to pull off the shell-engaginghead 18 should be such that it can be done by an average strength human being as it may be necessary during surgery to replace the shell-engaginghead 18. - It will also be noted that an engaging head may be disposed on the elongate body in a modular or integral manner. It will be appreciated that if the engaging head is disposed on the elongate body in an integral manner, that a
coupler end 14 is not needed and the engaging head may be disposed directly on thedistal end 11. Alternatively, modular embodiments of the engaging head may have an intervening structure, such as thecoupler end 14, between the engaging head and thedistal end 11. It is to understood that the phrase “disposed on,” when used in reference to the engaging head being disposed on an object (such as the distal end of the elongate body 12), means that the engaging head is held in relation to said object either in a modular or integral manner, either directly or indirectly. Referring now specially toFIG. 5 , the forgoing definition of the engaging head being “disposed on” an object, includes the concept that the engaginghead 18 is disposed on thedistal end 11 of theelongate member 12, because said engaginghead 18 is held in relation to saiddistal end 11, even though engaginghead 18 anddistal end 11 are not in any contact, but are intercoupled by thecoupler end 14. -
FIG. 5 also illustrates the engagement of anacetabular shell 62 having anouter surface 64 and an inner surface 66 with the shell-engaginghead 18. A rearmost portion 68 of theshell 62 may abut against thesurface 50 of the shell-engaginghead 18 when thetip portion 34 is inserted intoshell 62.Resilient member 36 disposed ingroove 35 on the outer surface 37 may form a pressure-maintaining seal with the inner surface 66 of theshell 62. Anenclosed region 70 may be defined by the inner surface 66 and the outer surface 37. Theenclosed region 70 may be in fluid communication with thehollow passage 54 and may be substantially airtight. -
FIGS. 6 and 7 illustrate alternative embodiments of engaging heads indicated byreference numerals FIG. 6 , the engaginghead 100 may comprise abase portion 102 having asurface 106 and arearmost portion 104. Atip portion 110 may extend from thesurface 106. Thetip portion 110 may comprise at least onefrustoconical portion 113 having two resilient members 111 disposed inannular grooves 116 for forming a substantially airtight enclosed region with an inner portion of an acetabular shell. It will be appreciated that the enclosed region may be between the two resilient members 111.Ports 114 may be positioned between the two resilient members 111 and be fluidly connected by afluid communication path 118 to aport 112 located within a recessedportion 108. As before, the recessedportion 108 may have a lockinggroove 109 to engage theextension member 28 of thecoupler end 14 as was described above and is incorporated here by reference. -
FIG. 7 , illustrates an engaginghead 120 that may be similar to that inFIG. 6 , except that there may be only a singleresilient member 126 in anannular groove 127 formed in the tip portion 121.Ports 128 may be fluidly connected toport 130 in the recessedportion 122 by afluid communication path 132. - In will be appreciated that embodiments of engaging heads may include various configurations all of which fall within the scope of the present disclosure. Some of these various configurations may include, without limitation, some of the following features in any combination: a tip portion having one, two or three resilient members in its outer surface, one, two or three ports in the recessed portion in fluid communication, either individually or in combination, with one, two or three ports in the outer surface, one, two or three ports located in the outer surface disposed at any location on the tip portion, and a tip portion having a partially spherical shape, substantially hemispherical shape, a shape having one or more frustoconical portions, or any random shape fitting with a inner portion of an acetabular shell or implant.
- It will be appreciated that the various embodiments of the engaging head enable the Applicant's disclosure to be utilized with the numerous variations in the structure of acetabular shells on the market today or may be on the market in the future. For example, some acetabular shells may comprise screw holes for anchoring the shell into the acetabulum. An appropriate embodiment of the engaging head consistent with Applicant's disclosure may be able to engage that shell as described herein.
- Once the shell-engaging
head 18 has been installed on the impactor 10 by an engagement with thecoupler end 14, it may then be used to position and impact theacetabular shell 62 into the acetabulum of a patient at the appropriate time. Theacetabular shell 62 may be held onto the shell-engaginghead 18 by a subatmospheric pressure formed in thehollow passage 54. In one embodiment, the subatmospheric pressure may be formed by placing the acetabular shell over thetip portion 34 of the shell-engaginghead 18. Theresilient member 36 on the outer surface 37 may airtightly seal an enclosed region defined by the outer surface 37 and an inner surface of the acetabular shell. It will be appreciated that at this point, thehollow passage 54 may have only one other egress, theport 42. The surgeon then may place his or her thumb over theport 42 located on thehead 16. - When the
port 42 is initially sealed by the surgeon, thehollow passage 54 is substantially airtight and it will be observed that the air pressure inside of thehollow passage 54 may be equalized with the atmospheric pressure for a brief period of time. Due to the configuration of the shell-engaginghead 18, a subatmospheric pressure may be formed when the acetabular shell attempts to move away from the shell-engaginghead 18, or vice versa. This may be due to that fact that no outside air can enter thehollow passage 54 while the volume of the airtight region is being increased. It will be understood that as used herein, reference to movement of a portion of theimpactor assembly 8 with respect to the shell or implant includes situations in which the implant remains stationary and theimpactor assembly 8 moves, or situations in which the implant moves and theimpactor assembly 8 remains stationary, or situations in which both the implant and theimpactor assembly 8 move with respect to each other. - It will be appreciated that the movement of the shell away from the shell-engaging
head 18 may be unobservable to the human eye. Once the subatmospheric pressure has been formed, the surgeon can then properly position the acetabular shell in the acetabulum using principles and techniques that are well known in the art and will not be recited here. Once the acetabular shell is in the correct position, the thumb may be removed from theport 42 and the pressure inside of thehollow passage 54 may again equalized with atmospheric pressure thereby releasing the acetabular shell. A surgical mallet may then be used to implant the shell into the acetabulum by striking thehead 16 of the impactor 10. - It will be observed that the prior art is devoid of acetabular shell impactors utilizing a subatmospheric pressure to hold an implant without moving parts. Moreover, the prior art only teaches the use of an external suction source having a permanently fixed engaging head. In particular, it is observed that the Amstutz patent does not teach or suggest that a subatmospheric pressure may be formed by the interaction of the engaging head and the implant, i.e., the movement of the engaging head away from the implant.
- A side view, top view, a rear view of a liner-engaging
head 150 are shown inFIGS. 8A, 8B , and 8C respectively. The liner-engaginghead 150 may be used to install a socket liner 157 (seeFIG. 9 ) into an implanted acetabular shell using the impactor 10 by engaging the socket portion of thesocket liner 157. It will be appreciated that thesocket liner 157 may be formed in various different sizes and configurations known in the art, and the liner-engaginghead 150 may be configured to be compatible with thesocket liner 157. The liner-engaginghead 150 may comprise atip portion 151 that may be partially spherical in shape. As mentioned, thetip portion 151 may be configured and sized to fit within the socket of thesocket liner 157. Thetip portion 151 may be resilient in nature to form a friction fit with thesocket liner 157. - A
base portion 152 of the liner-engaginghead 150 may have arearmost portion 155.Relief grooves 158 may extend from the forwardmost portion 153 towards therearmost portion 155. In one embodiment, fourrelief grooves 158 may be used. However, it will be understood that any number ofrelief grooves 158 may be used within the scope of the present disclosure. Aport 160 may be positioned in the forwardmost portion 153. A recessedportion 156 configured to engage theextension member 28 of thecoupler end 14 may extend from therearmost portion 155 towards the forwardmost portion 153. Aport 162 may be located in the recessedportion 156. - Looking now to a cross-sectional view of the engagement of the insert-engaging
head 150 and thecoupler end 14, the recessedportion 156 may slidably engage theextended member 28 as shown inFIG. 9 . The forward most of theresilient members 30 on theextension member 28 may engage anannular locking grove 164 formed in aside wall 166 of the recessedportion 156 in order to form a friction fit to hold the insert-engaging member on thecoupler end 14. The rearmostresilient member 30 on theextension member 28 may also engage theside wall 166 of the recessedportion 156 which a friction fit to hold the insert-engaginghead 150 onto thecoupler end 14. - The
rearmost portion 155 of thebase portion 152 may abut directly against theseat 27 of theannular flange 26 when the insert-engaginghead 150 is installed on thecoupler end 14. This interaction may serve to properly orient the insert-engaginghead 150. Likewise, the exposedend 31 of theextension member 28 may abut against abottom portion 166 of the recessedportion 156. - It will be observed that when the insert-engaging
head 150 is properly installed onto thecoupler end 14, thatport 32 is in alignment and adjacent withport 162 such thatport 160 is in direct fluid communication with thehollow passage 54. In this regard, thefluid communication path 33 may be interconnected with afluid communication path 168 extending fromport 160 toport 162. - Like the shell-engaging
head 18, in the above described arrangement, the insert-engaginghead 150 may be removed from the impactor 10 by using sufficient force to pull it off. It will be appreciated that the force to pull off the insert-engaginghead 150 should be such that it can be done by an average strength human being as it may be necessary during surgery to replace the insert-engaginghead 150. - After an acetabular shell has been implanted as described above, the surgeon may then remove the shell-engaging
head 18 from the impactor 10 and install an appropriately sized liner-engaginghead 150. The surgeon can then attach thesocket liner 157 to the liner-engaginghead 150 by inserting thetip portion 151 into the socket. Thetip portion 151 may engage the socket by a friction fit. Thesocket liner 157 can then be positioned and implanted into the previously implanted acetabular shell. This may require an impaction force delivered to thehead 16 by a surgical mallet. It will be appreciated that thehead 16 may constitute a means for receiving an impaction force. - Once the
socket liner 157 has been implanted into the shell, thesocket liner 157 may then be disengaged from the liner-engaginghead 150 so that the impactor 10 may be removed. Therelief grooves 158 prevent andport 160 reduce the hydraulic suction that is sometimes generated between the liner-engaginghead 150 and the socket liner when synorial fluid or another fluid is present. It will be appreciated that other embodiments of insert-engaging heads may be possible that fall within the scope of the present disclosure. Moreover, it will also be understood that another embodiment of the impactor 10 may be formed without thehollow passage 54 for use with the liner-engaginghead 150. - It will also be appreciated that the base portions of the different engaging heads described above in their various embodiments, i.e. engaging heads and liner-engaging heads and their respective varying embodiments, may have a common configuration such that they may engage the same impactor. The common configuration allows engaging heads of different sizes and types to be used interchangeably on the same impactor. For example, different patients and circumstances may require different sized acetabular shells that may not be determined until during surgery. The common configuration of the engaging heads facilitates the process by providing a single impactor with a plurality of engaging heads and liner-engaging heads.
-
FIG. 10 illustrates another embodiment of animpactor 170. Anoptional arm 172 may be coupled to anelongated body 174. Thearm 172 may comprise anextended portion 176 and ahandle 178. Thearm 172 may be removably coupled by means of a threaded portion (not shown) on the end of theextended portion 176 that may rotatably engage a threadedbore 180 on theelongated body 174. Thearm 172 may assist the surgeon in positioning theimpactor 174 during surgery as is known in the art. - In accordance with the features and combinations described above, a useful method of implanting an acetabular shell may include the steps of:
-
- (a) incising a hip with a minimally invasive incision to expose the acetabulum;
- (b) preparing the acetabulum;
- (c) providing an impactor having an elongate body, a head and a coupler end, the elongate body further comprising a bent portion and a hollow passage;
- (d) installing an engaging head onto the coupler end;
- (e) securing an acetabular shell to the engaging head by a subatmospheric pressure;
- (f) positioning the shell into the acetabulum; and
- (g) applying an impaction force to the head in order to implant the shell into the acetabulum.
- It will be understood that the structure disclosed herein may form one embodiment of a means for removably attaching an engaging head to an elongate body in a pressure-maintaining manner, such that any one of a plurality of engaging heads can be attached to the elongate body for installing surgical implants of different sizes. It should be appreciated that any structure, apparatus or system for removably attaching an engaging head which performs functions the same as, or equivalent to, those disclosed herein are intended to fall within the scope of a means for removably attaching an engaging head in a pressure-maintaining manner, including those structures, apparatus or systems for removably attaching an engaging head which are presently known, or which may become available in the future. Anything which functions the same as, or equivalently to, a means for removably attaching an engaging head in a pressure-maintaining manner falls within the scope of this element.
- It will be appreciated that the
elongate body 12 having a bent portion as disclosed herein is merely one example of a means for positioning an acetabular shell through a minimally invasive incision, and it should be appreciated that any structure, apparatus or system for positioning an acetabular shell through a minimally invasive incision which performs functions the same as, or equivalent to, those disclosed herein are intended to fall within the scope of a means for positioning an acetabular shell through a minimally invasive incision, including those structures, apparatus or systems for positioning an acetabular shell through a minimally invasive incision which are presently known, or which may become available in the future. Anything which functions the same as, or equivalently to, a means for positioning an acetabular shell through a minimally invasive incision falls within the scope of this element. - It will be appreciated that the
head 16 disclosed herein is merely one example of a means for receiving an impaction force, and it should be appreciated that any structure, apparatus or system for receiving an impaction force which performs functions the same as, or equivalent to, those disclosed herein are intended to fall within the scope of a means for receiving an impaction force, including those structures, apparatus or systems for receiving an impaction force which are presently known, or which may become available in the future. Anything which functions the same as, or equivalently to, a means for receiving an impaction force falls within the scope of this element. - It will be appreciated that the
coupler end 14 as disclosed herein is merely one example of a means for selectively engaging an engaging head by a pressure-maintaining seal, and it should be appreciated that any structure, apparatus or system for selectively engaging an engaging head by a pressure-maintaining seal which performs functions the same as, or equivalent to, those disclosed herein are intended to fall within the scope of a means for selectively engaging an engaging head by a pressure-maintaining seal, including those structures, apparatus or systems for selectively engaging an engaging head by a pressure-maintaining seal which are presently known, or which may become available in the future. Anything which functions the same as, or equivalently to, a means for selectively engaging an engaging head by a pressure-maintaining seal falls within the scope of this element. - It will be appreciated that the
hollow passage 54 disclosed herein is merely one example of a means for forming a subatmospheric pressure, and it should be appreciated that any structure, apparatus or system for forming a subatmospheric pressure which performs functions the same as, or equivalent to, those disclosed herein are intended to fall within the scope of a means for forming a subatmospheric pressure, including those structures, apparatus or systems for forming a subatmospheric pressure which are presently known, or which may become available in the future. Anything which functions the same as, or equivalently to, a means for forming a subatmospheric pressure falls within the scope of this element. - It will be appreciated that the
port 42 herein is merely one example of a means for breaking a subatmospheric pressure, and it should be appreciated that any structure, apparatus or system for breaking a subatmospheric pressure which performs functions the same as, or equivalent to, those disclosed herein are intended to fall within the scope of a means for breaking a subatmospheric pressure, including those structures, apparatus or systems for breaking a subatmospheric pressure which are presently known, or which may become available in the future. Anything which functions the same as, or equivalently to, a means for breaking a subatmospheric pressure falls within the scope of this element. - Those having ordinary skill in the relevant art will appreciate the advantages provide by the features of the present disclosure. For example, it is a feature of the present disclosure to provide an acetabular shell impactor with no moving parts. Another feature of the present disclosure to provide an acetabular shell impactor that utilizes a production of subatmospheric pressure to hold the acetabular shell on an engaging head of the impactor, without the need for an external subatmospheric pressure producing source. It is a further feature of the present disclosure, in accordance with one aspect thereof, to provide an acetabular shell impactor having interchangeable engaging heads to facilitate a hip replacement surgery. It is still another feature of the present disclosure to provide an acetabular shell impactor having interchangeable engaging heads and interchangeable liner-engaging heads.
- In the foregoing Detailed Description, various features of the present disclosure are grouped together in a single embodiment for the purpose of streamlining the disclosure. This method of disclosure is not to be interpreted as reflecting an intention that the claimed disclosure requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the following claims are hereby incorporated into this Detailed Description by this reference, with each claim standing on its own as a separate embodiment of the present disclosure.
- It is to be understood that the above-described arrangements are only illustrative of the application of the principles of the present disclosure. Numerous modifications and alternative arrangements may be devised by those skilled in the art without departing from the spirit and scope of the present disclosure and the appended claims are intended to cover such modifications and arrangements. Thus, while the present disclosure has been shown in the drawings and described above with particularity and detail, it will be apparent to those of ordinary skill in the art that numerous modifications, including, but not limited to, variations in size, materials, shape, form, function and manner of operation, assembly and use may be made without departing from the principles and concepts set forth herein.
Claims (40)
1. A method for implanting an acetabular shell into an acetabulum, the method comprising the steps of:
incising a hip to expose the acetabulum;
preparing the acetabulum to receive the acetabular shell;
providing an acetabular shell impactor having an elongate body and a distal end on which an engaging head may be selectively disposed, the elongate body comprising a hollow passage;
disposing the engaging head on the distal end of the impactor, the engaging head being configured to receive the acetabular shell;
placing the acetabular shell onto the engaging head;
closing off the hollow passage, such that movement of the acetabular shell relative to the distal end of the impactor causes a subatmospheric pressure to be produced within the hollow passage to thereby temporarily secure the acetabular shell onto the engaging head; and
positioning the acetabular shell into the acetabulum with the impactor.
2. The method of claim 1 , further comprising the step of applying an impaction force to the impactor to implant the acetabular shell.
3. The method of claim 1 , wherein the step of incising a hip creates a minimally invasive incision.
4. The method of claim 1 , wherein the step of disposing the engaging head comprises the step of rotatably engaging the engaging head with a coupler end.
5. The method of claim 1 , wherein the step of disposing the engaging head comprises the step of slidably engaging the engaging head with a coupler end.
6. The method of claim 1 , wherein the step of disposing the engaging head comprises the step of engaging the engaging head with the coupler end by a snap fit.
7. The method of claim 1 , further comprising forming a pressure-maintaining seal between the engaging head and the acetabular shell.
8. The method of claim 1 , wherein the step of incising a hip creates an incision between about two and one-half inches and about five inches.
9. The method of claim 1 , wherein the step of incising a hip creates an incision less than five and one-half inches.
10. A method for implanting an acetabular shell into an acetabulum, the method comprising the steps of:
incising a hip to expose the acetabulum;
preparing the acetabulum to receive the acetabular shell;
providing an acetabular shell impactor having an elongate body comprising a hollow passage, the impactor further comprising a port in fluid communication with the hollow passage;
placing the acetabular shell onto the impactor;
sealing the port with a part of the human body, such that movement of the acetabular shell relative to the distal end of the impactor causes a subatmospheric pressure to be produced within the hollow passage to thereby temporarily secure the acetabular shell onto the impactor; and
positioning the acetabular shell into the acetabulum.
11. The method of claim 10 , further comprising the step of applying an impaction force to the impactor to thereby implant the acetabular shell.
12. The method of claim 10 , further comprising the step of providing the impactor with a head disposed at a proximal end of the elongate body, the head having a top surface being configured to receive an impaction force, the port being positioned in the top surface.
13. The method of claim 10 , wherein the step of sealing the port further comprises the step of sealing the port with a thumb from a hand of a surgeon that is grasping the elongate body.
14. The method of claim 10 , wherein the step of incising a hip creates a minimally invasive incision.
15. The method of claim 10 , wherein the step of incising a hip creates an incision between about two and one-half inches and about five inches.
16. The method of claim 10 , wherein the step of incising a hip creates an incision less than five and one-half inches.
17. The method of claim 10 , further comprising the step of providing the elongate body with a bent portion, the bent portion configured to at least partially fit in a minimally invasive incision.
18. The method of claim 17 , further comprising the step of providing the elongate body with a straight portion.
19. The method of claim 10 , further comprising the step of installing a removeable engaging head on said elongate body.
20. A method for implanting an acetabular shell into an acetabulum, the method comprising the steps of:
incising a hip with a minimally invasive incision to provide access to the acetabulum;
providing an acetabular shell impactor having an elongate body, a port, a head and a coupler end, the elongate body extending from the coupler end to the head and comprising a hollow passage, the elongate body further comprising a bent portion adapted to fit at least partially in the minimally invasive incision, the port in fluid communication with the hollow passage;
placing the acetabular shell onto the impactor; and
applying an impaction force to the impactor to implant the acetabular shell.
21. The method of claim 20 , installing an engaging head onto the coupler end with a pressure-maintaining seal, the engaging head configured to receive the acetabular shell.
22. The method of claim 20 , further comprising sealing the port with a part of the human body.
23. The method of claim 21 , further comprising forming a partial vacuum in the hollow passage to temporarily secure the acetabular shell onto the engaging head.
24. The method of claim 20 , further comprising positioning the acetabular shell into the acetabulum with the impactor.
25. The method of claim 20 , wherein the step of incising a hip creates an incision between about two and one-half inches and about five and one-half inches.
26. The method of claim 20 , wherein the step of incising a hip creates an incision less than about five and one-half inches.
27. The method of claim 20 , further comprising the step of providing the elongate body with a straight portion interposed between the bent portion and the head.
28. The method of claim 23 , wherein the step of forming a subatmospheric pressure further comprises the step of moving the acetabular shell with respect to the engaging head.
29. The method of claim 22 , wherein the step of sealing the port further comprises the step of sealing the port with a thumb from a hand of a surgeon that is grasping the elongate body.
30. A method for implanting an acetabular shell and a socket liner into an acetabulum, the method comprising the steps of:
incising a hip to provide access to the acetabulum;
providing an impactor having an elongate body and a coupler end for selectively engaging an engaging head and a liner-engaging head, the engaging head being configured to receive the acetabular shell and the liner-engaging head being configured to receive the socket liner;
installing the engaging head onto the coupler end;
securing the acetabular shell onto the engaging head;
positioning the acetabular shell into the acetabulum with the impactor;
removing the engaging head from the coupler end and installing the liner-engaging head in its place; and
positioning the socket liner on the implanted acetabular shell with the impactor.
31. The method of claim 30 , further comprising applying an impaction force to the impactor to implant the acetabular shell.
32. The method of claim 30 , further comprising coupling the socket liner to the implanted shell by applying an impaction force.
33. The method of claim 30 , wherein the step of incising a hip creates a minimally invasive incision.
34. The method of claim 30 , wherein the step of installing the engaging head comprises the step of rotatably engaging the engaging head with the coupler end.
35. The method of claim 30 , wherein the step of installing the engaging head comprises the step of slidably engaging the engaging head with the coupler end.
36. The method of claim 30 , further comprising the step of forming a pressure-maintaining seal between the engaging head and the acetabular shell.
37. The method of claim 30 , wherein the step of incising a hip creates an incision between about two and one-half inches and about five and one-half inches.
38. The method of claim 30 , wherein the step of incising a hip creates an incision less than about five and one-half inches.
39. A method for installing an implant in a patient, the method comprising the steps of:
(a) joining said implant with an impactor;
(b) forming a pressure-maintaining region between said implant and said impactor;
(c) holding said implant on said impactor at least in part by a sub-atmospheric pressure in said region created when said impactor is moved in a direction away from said implant; and
(d) positioning said implant in said patient with said impactor.
40. A method for implanting an acetabular shell into an acetabulum of a patient, the method comprising the steps of:
incising a hip to provide access to the acetabulum;
providing an acetabular shell impactor having a body extending from a proximal end to a distal end, the body having a bend connected to the distal end and a straight portion connected to the proximal end, the bend comprising a first segment, a second segment, and a third segment such that the first segment extends from a longitudinal axis of the impactor at an angle, the second segment extends substantially parallel to the longitudinal axis of the impactor, and the third segment extends back toward the longitudinal axis of the impactor, wherein the second segment extends substantially parallel to the longitudinal axis a distance that is at least 10 percent of a distance between said proximal end and said distal end along said longitudinal axis;
disposing the acetabular shell on the distal end of the impactor;
positioning the acetabular shell into the acetabulum with the impactor until at least a portion of the bend is positioned into the patient;
impacting the proximal end of the impactor to drive the acetabular shell into the acetabulum;
disengaging the acetabular shell from the impactor while the acetabular shell is embedded in the acetabulum;
removing the impactor from the patient; and
closing the incision.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/837,039 US20050149043A1 (en) | 2004-01-05 | 2004-04-30 | Method of implanting an acetabular shell |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US53443104P | 2004-01-05 | 2004-01-05 | |
US54134404P | 2004-02-02 | 2004-02-02 | |
US10/837,039 US20050149043A1 (en) | 2004-01-05 | 2004-04-30 | Method of implanting an acetabular shell |
Publications (1)
Publication Number | Publication Date |
---|---|
US20050149043A1 true US20050149043A1 (en) | 2005-07-07 |
Family
ID=34714391
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/837,245 Abandoned US20050149047A1 (en) | 2004-01-05 | 2004-04-30 | Method of attaching an implant to an impactor |
US10/838,152 Expired - Fee Related US7931656B2 (en) | 2004-01-05 | 2004-04-30 | Acetabular shell impactor |
US10/837,039 Abandoned US20050149043A1 (en) | 2004-01-05 | 2004-04-30 | Method of implanting an acetabular shell |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/837,245 Abandoned US20050149047A1 (en) | 2004-01-05 | 2004-04-30 | Method of attaching an implant to an impactor |
US10/838,152 Expired - Fee Related US7931656B2 (en) | 2004-01-05 | 2004-04-30 | Acetabular shell impactor |
Country Status (1)
Country | Link |
---|---|
US (3) | US20050149047A1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050228394A1 (en) * | 2004-03-31 | 2005-10-13 | Diane Bihary | Suction inserter |
US20080109006A1 (en) * | 2006-10-17 | 2008-05-08 | Smith & Nephew, Inc. | Adjustable impactor handle |
US8157869B2 (en) | 2007-01-10 | 2012-04-17 | Biomet Manufacturing Corp. | Knee joint prosthesis system and method for implantation |
US8163028B2 (en) | 2007-01-10 | 2012-04-24 | Biomet Manufacturing Corp. | Knee joint prosthesis system and method for implantation |
US8187280B2 (en) | 2007-10-10 | 2012-05-29 | Biomet Manufacturing Corp. | Knee joint prosthesis system and method for implantation |
US8328873B2 (en) | 2007-01-10 | 2012-12-11 | Biomet Manufacturing Corp. | Knee joint prosthesis system and method for implantation |
US8562616B2 (en) | 2007-10-10 | 2013-10-22 | Biomet Manufacturing, Llc | Knee joint prosthesis system and method for implantation |
US10695193B2 (en) * | 2015-04-28 | 2020-06-30 | Depuy Ireland Unlimited Company | Device and method for inserting a liner into an acetabular cup |
CN112334094A (en) * | 2018-06-22 | 2021-02-05 | 捷迈有限公司 | Acetabular liner extraction |
Families Citing this family (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6991656B2 (en) | 2000-04-26 | 2006-01-31 | Dana Mears | Method and apparatus for performing a minimally invasive total hip arthroplasty |
DE10112527C1 (en) * | 2001-03-15 | 2002-10-10 | Mathys Medizinaltechnik Ag Bet | Setting tool for inserting an expansion shell |
US7651501B2 (en) | 2004-03-05 | 2010-01-26 | Wright Medical Technology, Inc. | Instrument for use in minimally invasive hip surgery |
US20050137603A1 (en) * | 2003-11-12 | 2005-06-23 | Kevin Belew | Acetabular cup positioning instrument |
US20050149047A1 (en) * | 2004-01-05 | 2005-07-07 | Paramount Medical Instruments, L.L.C. | Method of attaching an implant to an impactor |
US20050187562A1 (en) * | 2004-02-03 | 2005-08-25 | Grimm James E. | Orthopaedic component inserter for use with a surgical navigation system |
DE102004043995A1 (en) * | 2004-09-08 | 2006-03-30 | Aesculap Ag & Co. Kg | Surgical instrument |
FR2876278B1 (en) * | 2004-10-13 | 2007-10-26 | Thomas Gradel | COTYL APPLICATION INSTRUMENTS |
GB2423715A (en) * | 2005-03-01 | 2006-09-06 | Corin Ltd | Surgical introducer |
US20070072466A1 (en) * | 2005-09-27 | 2007-03-29 | Manabu Miyamoto | Instrument for endoscope |
US7621921B2 (en) * | 2006-01-25 | 2009-11-24 | Symmetry Medical, Inc | Split thread orthopaedic implant impactor |
US20070173857A1 (en) * | 2006-01-26 | 2007-07-26 | Sdgi Holdings, Inc. | Surgical tool and method employing vacuum coupling or magnetic coupling engagement mechanism for facilitating positioning of an intervertebral device |
US20070225725A1 (en) * | 2006-03-21 | 2007-09-27 | Zimmer Technology, Inc. | Modular acetabular component inserter |
US20070288096A1 (en) * | 2006-06-02 | 2007-12-13 | Gabriel Surma | System and method for inserting an implant |
DE202006010069U1 (en) * | 2006-06-28 | 2007-11-08 | Waldemar Link Gmbh & Co. Kg | Insertion device for joint sockets of prostheses |
US8603099B2 (en) | 2006-09-26 | 2013-12-10 | DePuy Synthes Products, LLC | Force dissipating impactor device |
US20080133023A1 (en) * | 2006-10-05 | 2008-06-05 | Zimmer Technology, Inc. | Provisional prosthetic component formed of multiple materials |
AU2006351469B2 (en) | 2006-12-07 | 2012-10-18 | Ihip Surgical, Llc | Method and apparatus for total hip replacement |
US8974540B2 (en) | 2006-12-07 | 2015-03-10 | Ihip Surgical, Llc | Method and apparatus for attachment in a modular hip replacement or fracture fixation device |
US8579985B2 (en) | 2006-12-07 | 2013-11-12 | Ihip Surgical, Llc | Method and apparatus for hip replacement |
GB0702945D0 (en) * | 2007-02-15 | 2007-03-28 | Depuy Ireland Ltd | An instrument for gripping a cup component of a joint prosthesis |
US20080269765A1 (en) * | 2007-04-27 | 2008-10-30 | Zimmer, Inc. | Instrument and method for implanting a prosthetic component |
US10420648B2 (en) * | 2009-06-10 | 2019-09-24 | Jean-Pierre LAFFAY | Acetabular prosthetic system with simplified impaction |
US9241720B2 (en) * | 2009-07-10 | 2016-01-26 | Peter Forsell | Hip joint instrument and method |
GB2473610A (en) * | 2009-09-16 | 2011-03-23 | Corin Ltd | Surgical introducing tool kit |
AU2012294801B2 (en) | 2011-08-08 | 2016-04-28 | Hip Innovation Technology Llc | Orthopedic instrument, system and method |
GB201300515D0 (en) * | 2013-01-11 | 2013-02-27 | Aurora Medical Ltd | Cap for use with acetabular cup |
US20150094728A1 (en) * | 2013-09-30 | 2015-04-02 | DePuy Synthes Products, LLC | Instrument for positioning a cup component of an orthopaedic joint prosthesis |
GB201317287D0 (en) | 2013-09-30 | 2013-11-13 | Depuy Ireland Ltd | An instrument for positioning a cup component of an orthopaedic joint prosthesis |
US10478313B1 (en) | 2014-01-10 | 2019-11-19 | Nuvasive, Inc. | Spinal fusion implant and related methods |
US20160135862A1 (en) * | 2014-11-17 | 2016-05-19 | Spinal Elements, Inc. | Curved surgical tools |
US10307267B2 (en) * | 2017-02-17 | 2019-06-04 | James W. Pritchett | System for implanting a prosthesis |
US10588756B2 (en) | 2017-03-31 | 2020-03-17 | DePuy Synthes Products, Inc. | System and method for implanting an acetabular prosthetic component |
WO2019009891A1 (en) | 2017-07-05 | 2019-01-10 | Wright Medical Technology, Inc. | Anterior ankle appoach system and method |
US10596011B2 (en) | 2018-01-31 | 2020-03-24 | Depuy Ireland Unlimited Company | Orthopaedic surgical instrument and method for positioning an acetabular prosthetic component |
BE1027082B1 (en) * | 2019-02-27 | 2020-09-21 | Zimmer Inc | Tool for clearing a carpal bone |
CN112168436B (en) * | 2020-09-27 | 2022-11-25 | 天衍医疗器材有限公司 | Ceramic lining mounting device |
Citations (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3859992A (en) * | 1973-06-06 | 1975-01-14 | Harlan C Amstutz | Vacuum-operated acetabular cup holder and positioner |
US4305394A (en) * | 1980-12-22 | 1981-12-15 | Bertuch Jr Charles J | Acetabular cup positioning instrument |
US4632111A (en) * | 1985-03-21 | 1986-12-30 | Minnesota Mining And Manufacturing Company | Acetabular cup positioning apparatus |
US4795469A (en) * | 1986-07-23 | 1989-01-03 | Indong Oh | Threaded acetabular cup and method |
US5061370A (en) * | 1990-03-20 | 1991-10-29 | Quebec And Ontario Paper Company Ltd. | Screening device for slurries with improved rotor and hub design |
US5116339A (en) * | 1990-07-11 | 1992-05-26 | Glock Steven R | Acetabular cup installation tool and method of installing an acetabular cup |
US5156626A (en) * | 1990-06-29 | 1992-10-20 | Zimmer, Inc. | Set of provisional prosthesis instrumentation |
US5431657A (en) * | 1994-05-23 | 1995-07-11 | Zimmer, Inc. | Instrument for installing an acetabular cup assembly |
US5474560A (en) * | 1994-09-26 | 1995-12-12 | Zimmer, Inc. | Prosthetic acetabular cup inserter |
US5766260A (en) * | 1995-06-06 | 1998-06-16 | Whiteside; Leo A. | Acetabular component with improved liner seal and lock |
US5954727A (en) * | 1993-10-29 | 1999-09-21 | Howmedica Inc. | Acetabular cup positioning tool and method of positioning an acetabular cup |
US6086587A (en) * | 1998-07-10 | 2000-07-11 | Hawk; Rodney | Multi-head suction assembly for use in surgical procedures |
US6132470A (en) * | 1994-01-27 | 2000-10-17 | W. L. Gore & Associates, Inc. | Apparatus and method for protecting prosthetic joint assembly from wear |
US6152930A (en) * | 1998-10-28 | 2000-11-28 | Depuy Orthopaedics, Inc. | Acetabular cup extraction system |
US20020116007A1 (en) * | 2001-02-16 | 2002-08-22 | Lewis Randall J. | Method and apparatus for removing an acetabular cup |
US20020183851A1 (en) * | 2001-03-19 | 2002-12-05 | Cambridge Polymer Group, Inc. | System and methods for reducing interfacial porosity in cements |
US20030050645A1 (en) * | 2002-10-30 | 2003-03-13 | Parker Brad A. | Acetabular cup impactor |
US20030125810A1 (en) * | 1996-08-21 | 2003-07-03 | Sullivan John Martin Patrick | Joint replacement prosthesis |
US20030229356A1 (en) * | 2002-06-10 | 2003-12-11 | Donald Dye | Curved acetabular shell impaction instrument and method of use |
US6695850B2 (en) * | 2002-02-20 | 2004-02-24 | Robert L. Diaz | Minimally invasive total hip replacement |
US20050149047A1 (en) * | 2004-01-05 | 2005-07-07 | Paramount Medical Instruments, L.L.C. | Method of attaching an implant to an impactor |
US6916342B2 (en) * | 2002-04-01 | 2005-07-12 | Smith & Nephew, Inc. | Liner assembly for prosthetic components |
US7037310B2 (en) * | 2003-10-21 | 2006-05-02 | Wright Medical Technology Inc | Acetabular impactor |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1041311A (en) | 1951-08-24 | 1953-10-22 | Chevalier Et Fils E | Surgical burr |
US4517977A (en) * | 1981-07-24 | 1985-05-21 | Unisearch Limited | Co-axial tube surgical infusion/suction cutter tip |
US5061270A (en) | 1991-03-18 | 1991-10-29 | Aboczky Robert I | System for orienting, inserting and impacting an acetabular cup prosthesis |
US6558314B1 (en) * | 2000-02-11 | 2003-05-06 | Iotek, Inc. | Devices and method for manipulation of organ tissue |
AU2003208401A1 (en) | 2002-02-08 | 2003-09-02 | Gursharan Singh Chana | Device for holding and rotating an acetabulum reamer |
US20030220647A1 (en) * | 2002-05-21 | 2003-11-27 | Mccallum Kevin | Low profile acetabular reamer |
-
2004
- 2004-04-30 US US10/837,245 patent/US20050149047A1/en not_active Abandoned
- 2004-04-30 US US10/838,152 patent/US7931656B2/en not_active Expired - Fee Related
- 2004-04-30 US US10/837,039 patent/US20050149043A1/en not_active Abandoned
Patent Citations (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3859992A (en) * | 1973-06-06 | 1975-01-14 | Harlan C Amstutz | Vacuum-operated acetabular cup holder and positioner |
US4305394A (en) * | 1980-12-22 | 1981-12-15 | Bertuch Jr Charles J | Acetabular cup positioning instrument |
US4632111A (en) * | 1985-03-21 | 1986-12-30 | Minnesota Mining And Manufacturing Company | Acetabular cup positioning apparatus |
US4795469A (en) * | 1986-07-23 | 1989-01-03 | Indong Oh | Threaded acetabular cup and method |
US5061370A (en) * | 1990-03-20 | 1991-10-29 | Quebec And Ontario Paper Company Ltd. | Screening device for slurries with improved rotor and hub design |
US5156626A (en) * | 1990-06-29 | 1992-10-20 | Zimmer, Inc. | Set of provisional prosthesis instrumentation |
US5116339A (en) * | 1990-07-11 | 1992-05-26 | Glock Steven R | Acetabular cup installation tool and method of installing an acetabular cup |
US5954727A (en) * | 1993-10-29 | 1999-09-21 | Howmedica Inc. | Acetabular cup positioning tool and method of positioning an acetabular cup |
US6132470A (en) * | 1994-01-27 | 2000-10-17 | W. L. Gore & Associates, Inc. | Apparatus and method for protecting prosthetic joint assembly from wear |
US5431657A (en) * | 1994-05-23 | 1995-07-11 | Zimmer, Inc. | Instrument for installing an acetabular cup assembly |
US5474560A (en) * | 1994-09-26 | 1995-12-12 | Zimmer, Inc. | Prosthetic acetabular cup inserter |
US5766260A (en) * | 1995-06-06 | 1998-06-16 | Whiteside; Leo A. | Acetabular component with improved liner seal and lock |
US20030125810A1 (en) * | 1996-08-21 | 2003-07-03 | Sullivan John Martin Patrick | Joint replacement prosthesis |
US6086587A (en) * | 1998-07-10 | 2000-07-11 | Hawk; Rodney | Multi-head suction assembly for use in surgical procedures |
US6152930A (en) * | 1998-10-28 | 2000-11-28 | Depuy Orthopaedics, Inc. | Acetabular cup extraction system |
US20020116007A1 (en) * | 2001-02-16 | 2002-08-22 | Lewis Randall J. | Method and apparatus for removing an acetabular cup |
US20020183851A1 (en) * | 2001-03-19 | 2002-12-05 | Cambridge Polymer Group, Inc. | System and methods for reducing interfacial porosity in cements |
US6695850B2 (en) * | 2002-02-20 | 2004-02-24 | Robert L. Diaz | Minimally invasive total hip replacement |
US6916342B2 (en) * | 2002-04-01 | 2005-07-12 | Smith & Nephew, Inc. | Liner assembly for prosthetic components |
US20030229356A1 (en) * | 2002-06-10 | 2003-12-11 | Donald Dye | Curved acetabular shell impaction instrument and method of use |
US20030050645A1 (en) * | 2002-10-30 | 2003-03-13 | Parker Brad A. | Acetabular cup impactor |
US7037310B2 (en) * | 2003-10-21 | 2006-05-02 | Wright Medical Technology Inc | Acetabular impactor |
US20050149047A1 (en) * | 2004-01-05 | 2005-07-07 | Paramount Medical Instruments, L.L.C. | Method of attaching an implant to an impactor |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050228394A1 (en) * | 2004-03-31 | 2005-10-13 | Diane Bihary | Suction inserter |
US20080109006A1 (en) * | 2006-10-17 | 2008-05-08 | Smith & Nephew, Inc. | Adjustable impactor handle |
US8425526B2 (en) | 2006-10-17 | 2013-04-23 | Smith & Nephew, Inc. | Adjustable impactor |
US8163028B2 (en) | 2007-01-10 | 2012-04-24 | Biomet Manufacturing Corp. | Knee joint prosthesis system and method for implantation |
US8328873B2 (en) | 2007-01-10 | 2012-12-11 | Biomet Manufacturing Corp. | Knee joint prosthesis system and method for implantation |
US8157869B2 (en) | 2007-01-10 | 2012-04-17 | Biomet Manufacturing Corp. | Knee joint prosthesis system and method for implantation |
US8480751B2 (en) | 2007-01-10 | 2013-07-09 | Biomet Manufacturing, Llc | Knee joint prosthesis system and method for implantation |
US8936648B2 (en) | 2007-01-10 | 2015-01-20 | Biomet Manufacturing, Llc | Knee joint prosthesis system and method for implantation |
US8187280B2 (en) | 2007-10-10 | 2012-05-29 | Biomet Manufacturing Corp. | Knee joint prosthesis system and method for implantation |
US8562616B2 (en) | 2007-10-10 | 2013-10-22 | Biomet Manufacturing, Llc | Knee joint prosthesis system and method for implantation |
US9763793B2 (en) | 2007-10-10 | 2017-09-19 | Biomet Manufacturing, Llc | Knee joint prosthesis system and method for implantation |
US10736747B2 (en) | 2007-10-10 | 2020-08-11 | Biomet Manufacturing, Llc | Knee joint prosthesis system and method for implantation |
US10695193B2 (en) * | 2015-04-28 | 2020-06-30 | Depuy Ireland Unlimited Company | Device and method for inserting a liner into an acetabular cup |
CN112334094A (en) * | 2018-06-22 | 2021-02-05 | 捷迈有限公司 | Acetabular liner extraction |
Also Published As
Publication number | Publication date |
---|---|
US20050149047A1 (en) | 2005-07-07 |
US20050203535A1 (en) | 2005-09-15 |
US7931656B2 (en) | 2011-04-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7931656B2 (en) | Acetabular shell impactor | |
EP2082705B1 (en) | Constraining ring inserter | |
US20180214275A1 (en) | Femoral stem including an anchor to facilitate assembly and implantation | |
EP1813229B1 (en) | Split thread orthopaedic implant impactor | |
US6695850B2 (en) | Minimally invasive total hip replacement | |
JP2532806B2 (en) | Acetabular cup assembly | |
JP5367104B2 (en) | Instruments for installing acetabular cups | |
EP1825834B1 (en) | Apparatus for aligning a taper lock connection | |
US10596011B2 (en) | Orthopaedic surgical instrument and method for positioning an acetabular prosthetic component | |
CN105592823B (en) | Implant is tested | |
US7682399B2 (en) | Acetabular shell | |
JP2001515749A (en) | Graft insertion method and device | |
US20080154276A1 (en) | Method and instruments for inserting modular implant components | |
US20120059383A1 (en) | Instrument for placement and implantation of a prosthetic component | |
JP6474739B2 (en) | Implant trial method | |
AU2020260530B2 (en) | Ball and cup impactors for implanting a hip prosthesis | |
US8366716B2 (en) | Constrained acetabular trialing system | |
US11413161B2 (en) | System and method for total hip arthroplasty | |
JP4243060B2 (en) | Tool for adjusting the mutual angle between the parts of the hip prosthesis | |
US20070276396A1 (en) | Modular acetabular reamer | |
US7172598B2 (en) | Force specific impacting device | |
WO2011161291A1 (en) | Femoral prosthesis extractor for checks and extraction method |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: PARAMOUNT MEDICAL INSTRUMENTS, UTAH Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:PARRY, DOUGLAS S.;PARRY, SCOTT R.;REEL/FRAME:015796/0405 Effective date: 20040414 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |