US20170007230A1 - Expanding seal anchor for single incision surgery - Google Patents
Expanding seal anchor for single incision surgery Download PDFInfo
- Publication number
- US20170007230A1 US20170007230A1 US15/274,429 US201615274429A US2017007230A1 US 20170007230 A1 US20170007230 A1 US 20170007230A1 US 201615274429 A US201615274429 A US 201615274429A US 2017007230 A1 US2017007230 A1 US 2017007230A1
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- United States
- Prior art keywords
- segment
- grip segment
- dilator
- grip
- surgical
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B17/0293—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors with ring member to support retractor elements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B17/0218—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors 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
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
- A61B17/3421—Cannulas
- A61B17/3423—Access ports, e.g. toroid shape introducers for instruments or hands
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
- A61B17/3421—Cannulas
- A61B17/3431—Cannulas being collapsible, e.g. made of thin flexible material
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/02—Holding devices, e.g. on the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
- A61B17/3421—Cannulas
- A61B17/3439—Cannulas with means for changing the inner diameter of the cannula, e.g. expandable
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
- A61B2017/3419—Sealing means between cannula and body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
- A61B17/3421—Cannulas
- A61B17/3423—Access ports, e.g. toroid shape introducers for instruments or hands
- A61B2017/3429—Access ports, e.g. toroid shape introducers for instruments or hands having a unitary compressible body, e.g. made of silicone or foam
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B2017/348—Means for supporting the trocar against the body or retaining the trocar inside the body
- A61B2017/3482—Means for supporting the trocar against the body or retaining the trocar inside the body inside
- A61B2017/3484—Anchoring means, e.g. spreading-out umbrella-like structure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B2017/348—Means for supporting the trocar against the body or retaining the trocar inside the body
- A61B2017/3482—Means for supporting the trocar against the body or retaining the trocar inside the body inside
- A61B2017/349—Trocar with thread on outside
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/03—Automatic limiting or abutting means, e.g. for safety
- A61B2090/037—Automatic limiting or abutting means, e.g. for safety with a frangible part, e.g. by reduced diameter
Definitions
- the present disclosure relates to a device, and a method of use thereof, for facilitating access to a patient's internal cavities during a surgical procedure. More particularly, the present disclosure relates to a surgical anchoring apparatus adapted for insertion into an incision in tissue, and for the sealed reception of one or more surgical objects, so as to form a substantially fluid-tight seal with both the tissue and the surgical object, or objects.
- insufflation gasses are used to enlarge the area surrounding the target surgical site to create a larger, more accessible work area. Accordingly, the maintenance of a substantially fluid-tight seal at the incision and about the surgical object, or objects, is desirable so as to prevent the escape of the insufflation gases and the deflation or collapse of the enlarged surgical work area.
- a surgical anchoring apparatus includes a body member defining a longitudinal body passage extending along a longitudinal axis thereof, a dilator element at least partially positionable within the longitudinal passage of the body member and a seal mounted with respect to the dilator element.
- the body member includes an expandable section adapted to transition between a first initial condition and a second expanded condition.
- the expandable section of the body member includes a plurality of expandable segments separated by slots, which may be substantially longitudinal, and a plurality of internal cam surfaces that are obliquely arranged with respect to the longitudinal axis defined by the body member.
- each of the expandable segments includes an internal cam surface.
- the expandable section further includes an outer helical thread adapted to facilitate the advancement of the body member within tissue when the body member is in the first initial condition.
- the body member also includes a grip segment adapted for manual engagement by a user.
- the grip segment depends radially outwardly relative to the longitudinal axis of the body member.
- the grip segment is adapted to transition between a normal state and an at least partially inverted state.
- the grip segment may comprise an elastomeric material, and have a peripheral flange that is adapted to contact tissue when the grip segment is in the normal state.
- the peripheral flange may be adapted to establish a vacuum seal with the tissue upon transition of the grip segment from the at least partially inverted state to the normal state.
- the dilator element is dimensioned to cause the expandable section to transition to the second expanded condition when inserted into the expandable section to thereby facilitate securement of the body member relative to tissue.
- the dilator element defines a longitudinal dilator passage for the reception and passage of a surgical object.
- the dilator element is dimensioned to contact the cam surfaces during insertion of the dilator element within the longitudinal passage of the body member to move the expandable segments at least radially outwardly relative to the longitudinal axis and cause the transition of the expandable section to the second expanded condition.
- the seal is adapted to establish a substantial sealing relation with the surgical object received within the dilator element.
- the seal may include a gel material or a self healing foam material.
- FIG. 1 is a side perspective view of a surgical anchoring apparatus in accordance with the principles of the present disclosure illustrating a body member and a dilator element.
- FIG. 2 is a side cross-sectional view of the surgical anchoring apparatus of FIG. 1 with the dilator element removed from the body member.
- FIG. 3 is a side cross-sectional view of the surgical anchoring apparatus of FIG. 2 with the dilator element inserted in the body member.
- FIG. 4 is a top perspective view of the surgical anchoring apparatus of FIG. 1 illustrating details of the seal.
- FIG. 5 is a side plan view of the body member of the surgical anchoring apparatus illustrating the grip segment in a first inverted state.
- FIG. 6 is a side plan view of the body member of the surgical anchoring apparatus illustrating the grip segment in a second normal state.
- FIG. 7 is a side plan view of the surgical anchoring apparatus illustrating the dilator element inserted through the body member, and an expandable section of the body member in a second, expanded condition.
- proximal will refer to the end of the apparatus which is closest to the clinician during the use thereof, while the term “distal” will refer to the end which is furthest from the clinician, as is traditional and known in the art.
- Anchoring apparatus 1000 for use in a surgical procedure, e.g. a minimally invasive procedure.
- Anchoring apparatus 1000 includes a body member 10 and a dilator element 300 at least partially positionable therein.
- Body member 10 defines a longitudinal axis “A” and a longitudinally extending passage 12 and includes a grip segment 100 and an expandable section 200 .
- Grip segment 100 depends radially outward relative to the longitudinal axis “A” of body member 10 and includes an outer surface 102 having an aperture 104 formed therein that is dimensioned to receive dilator element 300 .
- Outer surface 102 extends outwardly from aperture 104 to a peripheral flange 106 .
- Peripheral flange 106 is adapted to contact and establish a substantially vacuum quality seal with tissue “T” (see FIGS. 6-7 ), as discussed below.
- Grip segment 100 is adapted for manual engagement by a user and to resiliently transition between a first or normal state ( FIGS. 1-4 ) and a second state ( FIG. 5 ).
- first state outer surface 102 of grip segment 100 exhibits a substantially distal curvature in which peripheral flange 106 is directed distally.
- second state grip segment 100 is at least partially inverted such that at least a portion of outer surface 102 exhibits a substantially proximal curvature such that peripheral flange 106 is directed proximally.
- grip segment 100 is more aptly configured for manual engagement by a user to facilitate the insertion of expandable section 200 into an incision 14 ( FIG. 5 ), as discussed in further detail below.
- Grip segment 100 may be formed of any suitable biocompatible material that is sufficiently flexible to permit grip segment 100 to resiliently transition between the first and second states, including but not being limited to elastomeric materials.
- Expandable section 200 extends distally from grip segment 100 and is in substantial alignment with aperture 104 of grip segment 100 such that dilator element 300 may pass through aperture 104 and into expandable section 200 upon insertion. At its distal end 202 , expandable section 200 defines an opening 204 that is dimensioned to allow a distal end 304 of dilator element 300 to pass therethrough. Expandable section 200 is adapted to transition from a first, or initial condition ( FIG. 6 ) to a second, or expanded condition ( FIG. 7 ).
- Expandable section 200 defines a length “L” that is sufficient to provide percutaneous access to a patient's underlying cavities, organs and the like (not shown). Expandable section 200 includes a plurality of expandable segments 206 , a plurality of internal cam surfaces 208 and an outer helical thread 210 .
- Expandable segments 206 are defined by two or more slots 212 .
- slots 212 extend in a substantially longitudinal manner.
- alternate configurations for slots 212 are not beyond the scope of the present disclosure.
- Internal cam surfaces 208 are obliquely arranged with respect to the longitudinal axis “A” defined by body member 10 . Internal cam surfaces 208 are configured to engage a tapered outer surface 308 of dilator element 300 upon its insertion into longitudinal passage 12 of body member 10 to facilitate the transition of expandable section 200 from the initial condition to the expanded condition, as discussed in further detail below.
- each expandable segment 206 includes an internal cam surface 208 .
- Outer helical thread 210 is disposed on the outer surface of expandable section 200 . Helical thread engages tissue “T” upon the insertion of expandable section 200 into incision 14 so as to facilitate the distal advancement of body member 10 .
- helical thread 210 may assist in the anchoring of body member 10 within tissue “T”.
- Expandable section 200 may be formed of any suitable biocompatible material that is sufficiently resilient to permit resilient expandable section 200 to resiliently transition between the initial and expanded conditions thereof.
- expandable section 200 In its first, or normal condition, expandable section 200 is configured for insertion into incision 14 and defines a first diameter “D 1 ”. Upon the insertion of dilator element 300 , a distal end 304 thereof engages cam surfaces 208 . As dilator element 300 is advanced distally through longitudinal passage 12 , its distal end 304 forces cam surfaces 208 , and expandable segments 206 , outwardly to thereby transition expandable section 200 into its expanded condition. In its expanded condition, expandable section 200 defines a second, larger diameter
- Dilator element 300 has a proximal end 302 that includes a seal 400 and a gripping portion 306 that is configured for grasping by a user during the distal advancement of dilator element 300 through body member 10 .
- Dilator element 300 defines a longitudinal passage 308 that extends therethrough from its proximal end 302 to its distal end 304 where an opening 310 is defined.
- Longitudinal passage 308 defines a diameter “D” and is configured to removably receive one or more surgical objects “I” ( FIG. 7 ), e.g. a trocar, endoscope or surgical stapler.
- the diameter “D” of longitudinal passage 308 may range between about 3 mm to about 15 mm, or may be substantially within the range of about 5 mm to about 12 mm.
- a dilator element 300 defining a longitudinal passage 308 with a substantially larger or smaller diameter “D” so as to accommodate such surgical objects.
- the longitudinal dilator passage 308 is divided into a plurality of individual lumens (not shown) separated by at least one septum. Each of the individual lumens may be of either substantially similar or substantially different dimensions and are each configured to receive a surgical object.
- Dilator element 300 may be formed of any biocompatible material that is sufficiently rigid to urge the expandable segments 206 of expandable section 200 outwardly upon its insertion into longitudinal body passage 12 and thereby transition expandable portion 200 from its normal condition to its expanded condition.
- seal 400 is associated with proximal end 302 of dilator element 300 and may be mounted thereto.
- Seal 400 defines an aperture 402 and is adapted to transition from a closed condition ( FIG. 4 ) to an open condition ( FIG. 7 ) upon the insertion of surgical object “I”.
- aperture 402 defines a first dimension “D S1 ” of about 0 mm so as to substantially prevent the escape of any insufflation gas (not shown) therethrough in the absence of surgical object “I”.
- aperture 402 is forced open, thereby transitioning seal 400 into the open condition.
- aperture 402 defines a second dimension “D S2 ” that substantially approximates the diameter “D 1 ” of surgical object “I” such that seal 400 forms a substantially fluid-tight seal with surgical object “I”, thereby substantially preventing the escape of any insufflation gas through seal 400 .
- Surgical object “I” will generally define a diameter substantially within the range of about 5 mm to about 12 mm.
- aperture 402 will generally define a second dimension “D S2 ” that is also substantially within the range of about 5 mm to about 12 mm.
- the use of surgical objects having substantially larger and smaller diameters is contemplated herein, as is a seal 400 with an aperture 402 that is capable of accommodating such surgical objects.
- Seal 400 may be formed of any suitable biocompatible material that is at least semi-resilient in nature such that seal 400 may transition between the closed and open conditions thereof. Seal 400 may be any seal or valve suitable for the intended purpose of removably receiving a surgical object in sealed relation therewith, including but not being limited to a slit-valve or a zero closure valve.
- the peritoneal cavity (not shown) is insufflated with a suitable biocompatible gas such as, e.g., CO 2 gas, such that the cavity wall is raised and lifted away from the internal organs and tissue housed therein, providing greater access thereto.
- a suitable biocompatible gas such as, e.g., CO 2 gas
- the insufflation may be performed with an insufflation needle or similar device, as is conventional in the art.
- an incision 14 is created in tissue “T”, the dimensions of which may be varied dependent upon the nature of the surgical procedure.
- dilator element 300 Prior to the insertion of anchoring apparatus 1000 within incision 14 , dilator element 300 is removed from body 10 . Thereafter, the clinician may transition grip segment 100 from the first state ( FIGS. 1-4 ) to the second state ( FIG. 5 ) to facilitate the manual engagement thereof and the insertion of body member 10 . To realize this transition, the user at least partially inverts grip segment 100 such that the outer surface 102 exhibits a proximal curvature. Once in the second state, the clinician may more easily grasp grip segment 100 , e.g. about peripheral flange 106 .
- the distal end 206 of expandable section 200 is then inserted into and advanced distally through incision 14 .
- the clinician may rotate body 10 , e.g. clockwise in the direction of arrows “B”, during insertion such that helical thread 210 facilitates the distal advancement of expandable section 200 .
- grip segment 100 is returned to its first state such that peripheral flange 106 is in engagement with tissue “T”.
- Grip segment 100 may form a substantially vacuum seal with tissue “T”. (See FIGS. 6-7 ).
- dilator element 300 is inserted through aperture 104 in grip segment 100 , into longitudinal body passage 202 , distally therethrough and into expandable section 200 .
- its distal end 304 engages cam surfaces 208 , thereby forcing the plurality of expandable segments 206 outwardly and transitioning expandable section 200 from the normal condition ( FIG. 6 ) to the expanded condition ( FIG. 7 ).
- expandable section 200 defines a first diameter “D 1 ” and in the expanded condition, expandable section 200 defines a second, larger diameter “D 2 ”.
- expandable section 200 expands outwardly and exerts a force “F” upon tissue “T” which dilates incision 14 .
- Force “F” creates a corresponding biasing force “F B ” within tissue “T” that attempts to close incision 14 .
- Forces “F” and “F B ” collaborate to secure and anchor expandable section 200 within tissue “T” in a substantially fluid tight manner such that the escape of insufflation gas about anchoring apparatus 1000 is substantially prevented.
- helical thread 210 is disposed distally, and perhaps proximally, of tissue “T”, thereby further securing the disposition and anchoring of expandable section 200 within tissue “T”.
- surgical object “I” is inserted and advanced distally through the seal 400 associated with the proximal end 302 of dilator element 300 , through longitudinal dilator passage 308 and ultimately through opening 310 at the distal end 304 of dilator element 300 . Thereafter, the remainder of the surgical procedure may be carried out using surgical object “I”.
- surgical object “I” is withdrawn from dilator element 300 through seal 400 .
- Dilator element 300 is then withdrawn from expandable section 200 through longitudinal body passage 202 and through aperture 104 in grip segment 100 .
- force “F” dissipates, as does the corresponding biasing force “F B ” in tissue “T”, thereby facilitating the withdrawal of expandable section 200 .
- the user may then transition grip segment 100 from the first state to the second state and withdraw body member 10 from incision 14 , optionally rotating body member 10 during withdrawal. Incision 14 may then be closed.
Abstract
The present disclosure relates to a surgical anchoring apparatus for use during a minimally invasive surgical procedure. The surgical anchoring apparatus includes a body member and a dilator element at least partially positionable therein. The body member includes a grip segment adapted for manual engagement by a user and an expandable section having a plurality of expandable segments and a plurality of cam surfaces. The grip segment resiliently transitions between a first or normal state and a second state in which the grip segment is at least partially inverted. The expandable section's cam surfaces are configured to engage a distal end of the dilator element upon its insertion such that the expandable section may transition from an initial condition to an expanded condition in which the body member is secured or anchored within an incision in tissue.
Description
- This application is a continuation of U.S. patent application Ser. No. 14/310,024 filed Jun. 20, 2014, which is a continuation of U.S. patent application Ser. No. 12/244,127 filed Oct. 2, 2008, now U.S. Pat. No. 8,795,326, which claims benefit of and priority to U.S. Provisional Application No. 60/997,844 filed Oct. 5, 2007, and the disclosures of each of the above-identified applications are hereby incorporated by reference in their entirety.
- 1. Technical Field
- The present disclosure relates to a device, and a method of use thereof, for facilitating access to a patient's internal cavities during a surgical procedure. More particularly, the present disclosure relates to a surgical anchoring apparatus adapted for insertion into an incision in tissue, and for the sealed reception of one or more surgical objects, so as to form a substantially fluid-tight seal with both the tissue and the surgical object, or objects.
- 2. Background of the Related Art
- Today, many surgical procedures are performed through small incisions in the skin, as compared to the larger incisions typically required in traditional procedures, in an effort to reduce trauma to the patient and recovery time. Generally, such procedures are referred to as “endoscopic”, unless performed on the patient's abdomen, in which case the procedure is referred to as “laparoscopic”. Throughout the present disclosure, the term “minimally invasive” should be understood to encompass both endoscopic and laparoscopic procedures. During a typical minimally invasive procedure, surgical objects, such as surgical access devices, e.g. trocar and cannula assemblies, or endoscopes, are inserted into the patient's body through the incision in tissue.
- In generally, prior to the introduction of the surgical object into the patient's body, insufflation gasses are used to enlarge the area surrounding the target surgical site to create a larger, more accessible work area. Accordingly, the maintenance of a substantially fluid-tight seal at the incision and about the surgical object, or objects, is desirable so as to prevent the escape of the insufflation gases and the deflation or collapse of the enlarged surgical work area.
- To this end, various apparatus, including valves, seals and the like, are used during the course of minimally invasive procedures and are widely known in the art. However, a continuing need exists for a self-anchoring apparatus that can be inserted directly into the incision in tissue and that can accommodate a variety of surgical objects while maintaining the integrity of an insufflated workspace.
- In one aspect of the present disclosure, a surgical anchoring apparatus includes a body member defining a longitudinal body passage extending along a longitudinal axis thereof, a dilator element at least partially positionable within the longitudinal passage of the body member and a seal mounted with respect to the dilator element.
- The body member includes an expandable section adapted to transition between a first initial condition and a second expanded condition. The expandable section of the body member includes a plurality of expandable segments separated by slots, which may be substantially longitudinal, and a plurality of internal cam surfaces that are obliquely arranged with respect to the longitudinal axis defined by the body member. In one embodiment, each of the expandable segments includes an internal cam surface. The expandable section further includes an outer helical thread adapted to facilitate the advancement of the body member within tissue when the body member is in the first initial condition.
- The body member also includes a grip segment adapted for manual engagement by a user. The grip segment depends radially outwardly relative to the longitudinal axis of the body member. The grip segment is adapted to transition between a normal state and an at least partially inverted state. The grip segment may comprise an elastomeric material, and have a peripheral flange that is adapted to contact tissue when the grip segment is in the normal state. The peripheral flange may be adapted to establish a vacuum seal with the tissue upon transition of the grip segment from the at least partially inverted state to the normal state.
- The dilator element is dimensioned to cause the expandable section to transition to the second expanded condition when inserted into the expandable section to thereby facilitate securement of the body member relative to tissue. The dilator element defines a longitudinal dilator passage for the reception and passage of a surgical object. The dilator element is dimensioned to contact the cam surfaces during insertion of the dilator element within the longitudinal passage of the body member to move the expandable segments at least radially outwardly relative to the longitudinal axis and cause the transition of the expandable section to the second expanded condition.
- The seal is adapted to establish a substantial sealing relation with the surgical object received within the dilator element. In alternate embodiments, the seal may include a gel material or a self healing foam material.
- These and other features of the valve disclosed herein will become more readily apparent to those skilled in the art from the following detailed description of various embodiments of the present disclosure.
- Various embodiments of the present disclosure are described hereinbelow with references to the drawings, wherein:
-
FIG. 1 is a side perspective view of a surgical anchoring apparatus in accordance with the principles of the present disclosure illustrating a body member and a dilator element. -
FIG. 2 is a side cross-sectional view of the surgical anchoring apparatus ofFIG. 1 with the dilator element removed from the body member. -
FIG. 3 is a side cross-sectional view of the surgical anchoring apparatus ofFIG. 2 with the dilator element inserted in the body member. -
FIG. 4 is a top perspective view of the surgical anchoring apparatus ofFIG. 1 illustrating details of the seal. -
FIG. 5 is a side plan view of the body member of the surgical anchoring apparatus illustrating the grip segment in a first inverted state. -
FIG. 6 is a side plan view of the body member of the surgical anchoring apparatus illustrating the grip segment in a second normal state. -
FIG. 7 is a side plan view of the surgical anchoring apparatus illustrating the dilator element inserted through the body member, and an expandable section of the body member in a second, expanded condition. - In the drawings and in the description which follows, in which like reference numerals identify similar or identical elements, the term “proximal” will refer to the end of the apparatus which is closest to the clinician during the use thereof, while the term “distal” will refer to the end which is furthest from the clinician, as is traditional and known in the art.
- With reference now to
FIGS. 1-2 , asurgical anchoring apparatus 1000 is disclosed for use in a surgical procedure, e.g. a minimally invasive procedure. Anchoringapparatus 1000 includes abody member 10 and adilator element 300 at least partially positionable therein.Body member 10 defines a longitudinal axis “A” and a longitudinally extendingpassage 12 and includes agrip segment 100 and anexpandable section 200. -
Grip segment 100 depends radially outward relative to the longitudinal axis “A” ofbody member 10 and includes anouter surface 102 having anaperture 104 formed therein that is dimensioned to receivedilator element 300.Outer surface 102 extends outwardly fromaperture 104 to aperipheral flange 106.Peripheral flange 106 is adapted to contact and establish a substantially vacuum quality seal with tissue “T” (seeFIGS. 6-7 ), as discussed below. -
Grip segment 100 is adapted for manual engagement by a user and to resiliently transition between a first or normal state (FIGS. 1-4 ) and a second state (FIG. 5 ). In the first state,outer surface 102 ofgrip segment 100 exhibits a substantially distal curvature in whichperipheral flange 106 is directed distally. In the second state,grip segment 100 is at least partially inverted such that at least a portion ofouter surface 102 exhibits a substantially proximal curvature such thatperipheral flange 106 is directed proximally. In this state,grip segment 100 is more aptly configured for manual engagement by a user to facilitate the insertion ofexpandable section 200 into an incision 14 (FIG. 5 ), as discussed in further detail below. It should be noted that engagement by a user is also possible whengrip segment 100 is in the first state.Grip segment 100 may be formed of any suitable biocompatible material that is sufficiently flexible to permitgrip segment 100 to resiliently transition between the first and second states, including but not being limited to elastomeric materials. -
Expandable section 200 extends distally fromgrip segment 100 and is in substantial alignment withaperture 104 ofgrip segment 100 such thatdilator element 300 may pass throughaperture 104 and intoexpandable section 200 upon insertion. At itsdistal end 202,expandable section 200 defines anopening 204 that is dimensioned to allow adistal end 304 ofdilator element 300 to pass therethrough.Expandable section 200 is adapted to transition from a first, or initial condition (FIG. 6 ) to a second, or expanded condition (FIG. 7 ). -
Expandable section 200 defines a length “L” that is sufficient to provide percutaneous access to a patient's underlying cavities, organs and the like (not shown).Expandable section 200 includes a plurality ofexpandable segments 206, a plurality ofinternal cam surfaces 208 and an outerhelical thread 210. -
Expandable segments 206 are defined by two ormore slots 212. In one embodiment,slots 212 extend in a substantially longitudinal manner. However, alternate configurations forslots 212 are not beyond the scope of the present disclosure. Upon the transition ofexpandable section 200 from the initial condition to the expanded condition,expandable segments 206 are splayed radially outward, as discussed in further detail below. - Internal cam surfaces 208 are obliquely arranged with respect to the longitudinal axis “A” defined by
body member 10. Internal cam surfaces 208 are configured to engage a taperedouter surface 308 ofdilator element 300 upon its insertion intolongitudinal passage 12 ofbody member 10 to facilitate the transition ofexpandable section 200 from the initial condition to the expanded condition, as discussed in further detail below. In one embodiment, eachexpandable segment 206 includes aninternal cam surface 208. Outerhelical thread 210 is disposed on the outer surface ofexpandable section 200. Helical thread engages tissue “T” upon the insertion ofexpandable section 200 intoincision 14 so as to facilitate the distal advancement ofbody member 10. In addition,helical thread 210 may assist in the anchoring ofbody member 10 within tissue “T”. -
Expandable section 200 may be formed of any suitable biocompatible material that is sufficiently resilient to permit resilientexpandable section 200 to resiliently transition between the initial and expanded conditions thereof. - In its first, or normal condition,
expandable section 200 is configured for insertion intoincision 14 and defines a first diameter “D1”. Upon the insertion ofdilator element 300, adistal end 304 thereof engages cam surfaces 208. Asdilator element 300 is advanced distally throughlongitudinal passage 12, itsdistal end 304 forces cam surfaces 208, andexpandable segments 206, outwardly to thereby transitionexpandable section 200 into its expanded condition. In its expanded condition,expandable section 200 defines a second, larger diameter -
Dilator element 300 has aproximal end 302 that includes aseal 400 and agripping portion 306 that is configured for grasping by a user during the distal advancement ofdilator element 300 throughbody member 10. -
Dilator element 300 defines alongitudinal passage 308 that extends therethrough from itsproximal end 302 to itsdistal end 304 where anopening 310 is defined.Longitudinal passage 308 defines a diameter “D” and is configured to removably receive one or more surgical objects “I” (FIG. 7 ), e.g. a trocar, endoscope or surgical stapler. The diameter “D” oflongitudinal passage 308 may range between about 3 mm to about 15 mm, or may be substantially within the range of about 5 mm to about 12 mm. However, the use of surgical objects having substantially larger and smaller diameters is contemplated herein, as is adilator element 300 defining alongitudinal passage 308 with a substantially larger or smaller diameter “D” so as to accommodate such surgical objects. In one embodiment, thelongitudinal dilator passage 308 is divided into a plurality of individual lumens (not shown) separated by at least one septum. Each of the individual lumens may be of either substantially similar or substantially different dimensions and are each configured to receive a surgical object. -
Dilator element 300 may be formed of any biocompatible material that is sufficiently rigid to urge theexpandable segments 206 ofexpandable section 200 outwardly upon its insertion intolongitudinal body passage 12 and thereby transitionexpandable portion 200 from its normal condition to its expanded condition. - Referring now to
FIGS. 4 and 7 ,seal 400 is associated withproximal end 302 ofdilator element 300 and may be mounted thereto.Seal 400 defines anaperture 402 and is adapted to transition from a closed condition (FIG. 4 ) to an open condition (FIG. 7 ) upon the insertion of surgical object “I”. In the closed condition,aperture 402 defines a first dimension “DS1” of about 0 mm so as to substantially prevent the escape of any insufflation gas (not shown) therethrough in the absence of surgical object “I”. Upon the insertion of surgical object “I”,aperture 402 is forced open, thereby transitioningseal 400 into the open condition. In this condition,aperture 402 defines a second dimension “DS2” that substantially approximates the diameter “D1” of surgical object “I” such thatseal 400 forms a substantially fluid-tight seal with surgical object “I”, thereby substantially preventing the escape of any insufflation gas throughseal 400. Surgical object “I” will generally define a diameter substantially within the range of about 5 mm to about 12 mm. Accordingly, in the second condition,aperture 402 will generally define a second dimension “DS2” that is also substantially within the range of about 5 mm to about 12 mm. However, the use of surgical objects having substantially larger and smaller diameters is contemplated herein, as is aseal 400 with anaperture 402 that is capable of accommodating such surgical objects. -
Seal 400 may be formed of any suitable biocompatible material that is at least semi-resilient in nature such thatseal 400 may transition between the closed and open conditions thereof.Seal 400 may be any seal or valve suitable for the intended purpose of removably receiving a surgical object in sealed relation therewith, including but not being limited to a slit-valve or a zero closure valve. - The use and function of anchoring
apparatus 1000 during the course of a minimally invasive procedure will now be discussed. Initially, the peritoneal cavity (not shown) is insufflated with a suitable biocompatible gas such as, e.g., CO2 gas, such that the cavity wall is raised and lifted away from the internal organs and tissue housed therein, providing greater access thereto. The insufflation may be performed with an insufflation needle or similar device, as is conventional in the art. Either prior or subsequent to insufflation, anincision 14 is created in tissue “T”, the dimensions of which may be varied dependent upon the nature of the surgical procedure. - Prior to the insertion of
anchoring apparatus 1000 withinincision 14,dilator element 300 is removed frombody 10. Thereafter, the clinician may transitiongrip segment 100 from the first state (FIGS. 1-4 ) to the second state (FIG. 5 ) to facilitate the manual engagement thereof and the insertion ofbody member 10. To realize this transition, the user at least partially invertsgrip segment 100 such that theouter surface 102 exhibits a proximal curvature. Once in the second state, the clinician may more easily graspgrip segment 100, e.g. aboutperipheral flange 106. - The
distal end 206 ofexpandable section 200 is then inserted into and advanced distally throughincision 14. Optionally, the clinician may rotatebody 10, e.g. clockwise in the direction of arrows “B”, during insertion such thathelical thread 210 facilitates the distal advancement ofexpandable section 200. Afterexpandable section 200 has been completely inserted within the patient's tissue “T”,grip segment 100 is returned to its first state such thatperipheral flange 106 is in engagement with tissue “T”.Grip segment 100 may form a substantially vacuum seal with tissue “T”. (SeeFIGS. 6-7 ). - Subsequently,
dilator element 300 is inserted throughaperture 104 ingrip segment 100, intolongitudinal body passage 202, distally therethrough and intoexpandable section 200. During the distal advancement ofdilator element 300, itsdistal end 304 engages cam surfaces 208, thereby forcing the plurality ofexpandable segments 206 outwardly and transitioningexpandable section 200 from the normal condition (FIG. 6 ) to the expanded condition (FIG. 7 ). As previously discussed, in the normal condition,expandable section 200 defines a first diameter “D1” and in the expanded condition,expandable section 200 defines a second, larger diameter “D2”. - During the transition from the first condition to the second condition,
expandable section 200 expands outwardly and exerts a force “F” upon tissue “T” which dilatesincision 14. Force “F” creates a corresponding biasing force “FB” within tissue “T” that attempts to closeincision 14. Forces “F” and “FB” collaborate to secure and anchorexpandable section 200 within tissue “T” in a substantially fluid tight manner such that the escape of insufflation gas about anchoringapparatus 1000 is substantially prevented. In addition, while inserted within tissue “T”,helical thread 210 is disposed distally, and perhaps proximally, of tissue “T”, thereby further securing the disposition and anchoring ofexpandable section 200 within tissue “T”. - Finally, surgical object “I” is inserted and advanced distally through the
seal 400 associated with theproximal end 302 ofdilator element 300, throughlongitudinal dilator passage 308 and ultimately throughopening 310 at thedistal end 304 ofdilator element 300. Thereafter, the remainder of the surgical procedure may be carried out using surgical object “I”. - Upon completion of the surgical procedure, surgical object “I” is withdrawn from
dilator element 300 throughseal 400.Dilator element 300 is then withdrawn fromexpandable section 200 throughlongitudinal body passage 202 and throughaperture 104 ingrip segment 100. During the withdrawal ofdilator element 300, force “F” dissipates, as does the corresponding biasing force “FB” in tissue “T”, thereby facilitating the withdrawal ofexpandable section 200. The user may then transitiongrip segment 100 from the first state to the second state and withdrawbody member 10 fromincision 14, optionally rotatingbody member 10 during withdrawal.Incision 14 may then be closed. - Although the illustrative embodiments of the present disclosure have been described herein with reference to the accompanying drawings, the above description, disclosure, and figures should not be construed as limiting, but merely as exemplifications of particular embodiments. It is to be understood, therefore, that the disclosure is not limited to those precise embodiments, and that various other changes and modifications may be effected therein by one skilled in the art without departing from the scope or spirit of the disclosure.
Claims (17)
1. (canceled)
2. A surgical apparatus, comprising:
a body defining a longitudinal body passage, the body including:
a grip segment transitionable between a first state in which the grip segment is distally directed with respect to the longitudinal body passage and a second state in which the grip segment is proximally directed with respect to the longitudinal body passage; and
an elongate segment extending from the grip segment, the elongate segment transitionable between a first condition in which the elongate segment defines a first dimension and a second condition in which the elongate segment defines a second dimension different from the first dimension.
3. The surgical apparatus according to claim 2 , wherein the grip segment has an outer surface defining an aperture.
4. The surgical apparatus according to claim 2 , wherein the grip segment includes a peripheral flange configured to establish a seal with tissue.
5. The surgical apparatus according to claim 2 , further comprising a dilator positionable within the longitudinal body passage of the body, the dilator dimensioned to transition the elongate segment from the first condition to the second condition.
6. The surgical apparatus according to claim 5 , wherein the dilator defines a longitudinal dilator passage for passage of an object.
7. The surgical apparatus according to claim 5 , wherein the dilator includes a seal.
8. The surgical apparatus according to claim 5 , wherein the elongate segment includes an expandable member adapted to be displaced radially outwardly relative to a longitudinal axis of the elongate segment during insertion of the dilator within the longitudinal body passage of the body.
9. The surgical apparatus according to claim 8 , wherein the expandable member includes an internal cam surface configured to cooperate with the dilator to displace the expandable member radially outward.
10. A surgical method, comprising:
providing a body including a grip segment transitionable between a first state in which the grip segment is distally directed with respect to a longitudinal axis of the body and a second state in which the grip segment is proximally directed with respect to the longitudinal axis of the body and an elongate segment extending from the grip segment;
positioning the grip segment in the second state;
grasping the grip segment and advancing at least a portion of the body within tissue to provide access to an underlying surgical site; and
transitioning the grip segment from the second state to the first state.
11. The method according to claim 10 , further comprising expanding the elongate segment from a first dimension to a second dimension different from the first dimension.
12. The method according to claim 11 , wherein expanding the elongate segment includes introducing a dilator at least partially into the elongate segment of the body.
13. The method according to claim 12 , further comprising performing a surgical procedure by introducing a surgical object through a dilator passage of the dilator.
14. The method according to claim 10 , further comprising establishing a seal between a peripheral segment of an outer surface of the grip segment and the tissue.
15. The method according to claim 10 , wherein positioning the grip segment includes arranging the grip segment such that at least a portion of an outer surface of the grip segment curves proximally.
16. The method according to claim 10 , wherein transitioning the grip segment includes arranging the grip segment such that at least a portion of the outer surface curves distally.
17. The method according to claim 10 , further comprising performing a surgical procedure through a longitudinal body passage of the body.
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CN112702963A (en) * | 2018-09-21 | 2021-04-23 | 朝日英达科株式会社 | Dilator |
EP3854327A4 (en) * | 2018-09-21 | 2022-04-06 | Asahi Intecc Co., Ltd. | Dilator |
Also Published As
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JP2009090110A (en) | 2009-04-30 |
EP2044897B1 (en) | 2011-09-28 |
CN101401720A (en) | 2009-04-08 |
CN101401720B (en) | 2012-11-07 |
US8795326B2 (en) | 2014-08-05 |
JP5390156B2 (en) | 2014-01-15 |
CA2640393C (en) | 2015-12-15 |
ES2373805T3 (en) | 2012-02-08 |
CA2640393A1 (en) | 2009-04-05 |
JP2015142748A (en) | 2015-08-06 |
AU2008229793A1 (en) | 2009-04-23 |
US20090093850A1 (en) | 2009-04-09 |
ATE525968T1 (en) | 2011-10-15 |
US9474518B2 (en) | 2016-10-25 |
US20140303669A1 (en) | 2014-10-09 |
JP2014061393A (en) | 2014-04-10 |
AU2008229793B2 (en) | 2013-03-21 |
EP2044897A1 (en) | 2009-04-08 |
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Owner name: TYCO HEALTHCARE GROUP LP, MASSACHUSETTS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:RICHARD, PAUL D.;REEL/FRAME:039845/0966 Effective date: 20080902 Owner name: COVIDIEN LP, MASSACHUSETTS Free format text: CHANGE OF NAME;ASSIGNOR:TYCO HEALTHCARE GROUP LP;REEL/FRAME:040135/0132 Effective date: 20120928 |
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