US20050119680A1 - Surgical device with a moveable instrument protector - Google Patents

Surgical device with a moveable instrument protector Download PDF

Info

Publication number
US20050119680A1
US20050119680A1 US11/031,862 US3186205A US2005119680A1 US 20050119680 A1 US20050119680 A1 US 20050119680A1 US 3186205 A US3186205 A US 3186205A US 2005119680 A1 US2005119680 A1 US 2005119680A1
Authority
US
United States
Prior art keywords
guard
opening
threads
end wall
instrument
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
Application number
US11/031,862
Inventor
Ronald Dykes
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Diamatrix Ltd Inc
Original Assignee
Diamatrix Ltd Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Diamatrix Ltd Inc filed Critical Diamatrix Ltd Inc
Priority to US11/031,862 priority Critical patent/US20050119680A1/en
Publication of US20050119680A1 publication Critical patent/US20050119680A1/en
Assigned to DIAMATRIX LIMITED, INC. reassignment DIAMATRIX LIMITED, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DYKES, RONALD E.
Abandoned legal-status Critical Current

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32Surgical cutting instruments
    • A61B17/3209Incision instruments
    • A61B17/3211Surgical scalpels, knives; Accessories therefor
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32Surgical cutting instruments
    • A61B17/3209Incision instruments
    • A61B17/3211Surgical scalpels, knives; Accessories therefor
    • A61B2017/32113Surgical scalpels, knives; Accessories therefor with extendable or retractable guard or blade
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00Instruments, 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
    • A61B90/08Accessories or related features not otherwise provided for
    • A61B2090/0801Prevention of accidental cutting or pricking
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00Instruments, 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
    • A61B90/08Accessories or related features not otherwise provided for
    • A61B2090/0813Accessories designed for easy sterilising, i.e. re-usable

Definitions

  • the present invention relates in general to surgical devices and more particularly to a surgical device having a protector moveable between an open position exposing an instrument and a closed position covering the instrument.
  • Surgical devices include a working end or instrument that may be delicate and/or have a sharp point or cutting edge.
  • examples of such instruments include scalpels, blades, hooks (such as Sinskey hooks, Bonn hooks, insertion hooks, twist hooks and the like), scissors (such as retinal scissors and the like), picks (such as retinal picks and the like), forceps, probes, lens manipulators, markers, collar buttons, choppers, cystotomes irrigation needles and cannulas, spatulas (such as Castroviejo spatulas and the like), and dilators.
  • these surgical devices include at least one generally cylindrical handle with a distal end that houses instrument.
  • Surgical knives that include a cutting blade at a distal end of the handle are typical of such instruments, and much of the prior art pertaining to protection for such instruments is directed at protection for surgical knives. However, the instant invention applies equally to the protection of non-sharp instruments.
  • Surgical devices typically have a body with a cutting blade or other operable instrument at one end of the body.
  • the end of the body with the instrument sometimes has a portion that tapers down towards the instrument to provide good visibility of the instrument tip.
  • the instruments can be extremely sharp, and the extreme sharpness may render them hazardous when passed back and forth during use in surgical procedures. If the instrument has already been used on the patient, then there is a potential danger of infection since any sharp or tapered instrument can very easily cut or rip through a surgical glove and the skin beneath the glove. Additionally, if the entire surgical device is not sterilized it may introduce infection in the patient.
  • prior art systems for protection of surgical devices include some form of mechanically operable shield that covers the instrument when not in use, and that may be moved or removed in order to expose the instrument during use.
  • U.S. Pat. No. 5,254,128 to Mesa discloses a surgical knife with a blade protector axially moveable between two positions, namely, opened for normal use and closed for storage or safe handling.
  • the blade protector may be fixed in either position. While this arrangement solves some of the limitations of the prior art surgical devices, other common limitations still exist.
  • the present invention relates to surgical devices having a movable guard for protecting the device's instrument.
  • the surgical device includes a body having a reduced diameter portion between a handle portion and a tip portion carrying an instrument, an elongated, substantially cylindrical guard having an end wall forming a first opening for receiving the reduced diameter portion and a second opening formed opposite the first opening, is disposed on the body wherein the end wall portion is slidable along the length of the reduced diameter portion between a closed position with the guard substantially covering the instrument and an open position where the instrument is uncovered.
  • a slot is formed between the first and second openings continuous with the first opening.
  • the surgical device includes a locking mechanism for engaging a portion of the end wall portion for locking the guard in either the closed or open position.
  • the body may be formed of one or more elements, for example, by the interconnection between the tip portion with the reduced diameter portion and the handle portion.
  • the body of the surgical device may be a unitary member, thus reducing costs of manufacturing a multipart body.
  • the locking mechanism may of numerous means known in the art.
  • the locking mechanism includes threads formed on the end wall engageable with a first set and a second set of threads formed on the reduced diameter portion.
  • the guard or the handle may include protrusions formed on the exterior thereof to prevent inadvertent rolling of the device and/or aide in gripping the device.
  • the guard may be sized so that the outside diameter of the guard is substantially the same as the handle portion of the body when the guard is in the open position.
  • the guard may include one or more slots formed between the first and the second opening continuous with the first opening.
  • the elongated slots provide a mechanism for expanding the first opening to prevent over tightening of the guard in a locked position, for facilitating complete cleaning and sterilization of the device and to aide in placing the guard on the body.
  • the guard may include additional openings formed through the guard to facilitate cleaning of the device.
  • the surgical device may include various instruments well known in the art such as, but not limited to, hooks, choppers, collar buttons and blades.
  • the instruments may be non-linear and/or not parallel to the longitudinal axis of the body.
  • the instruments may include one or more bends or angles to facilitate placement of the instrument within the guard when the guard is in the closed position.
  • a method of constructing a surgical device includes the steps of forming a body having a reduced diameter portion between a handle portion and a tip portion, forming a first set of threads on the reduced diameter portion proximate the handle portion and a second set of threads proximate the tip portion, forming an elongated, substantially cylindrical guard having an end wall forming a first opening and a second opening formed opposite the first opening, wherein the end wall portion has end wall threads engageable with the first and second set of threads, forming at least two slots between the first and second opening continuous with the first opening, expanding the diameter of the first opening and passing the tip and second set of threads through the first opening and slidably positioning the end wall portion about the reduced diameter portion, attaching an instrument to the tip, engaging the end wall threads with the second set of threads locking the guard in a closed position with the guard covering the instrument, and engaging the end wall threads with the first set of threads locking the guard in an open position with the instrument uncovered.
  • the method may include steps to provide those desired features.
  • FIG. 1 is a partial cross-section view of a surgical device of the present invention with a moveable guard in the open position;
  • FIG. 2 is a partial cross-section view of a surgical device of the present invention with a moveable guard in the closed position;
  • FIG. 3 is a side view of another surgical device of the present invention.
  • FIG. 3A is an end view of the moveable guard of FIG. 3 in isolation
  • FIG. 4 is a side view of another surgical device of the present invention.
  • FIG. 5 is a side view of a surgical device of the present invention.
  • FIG. 6 is a side view of a surgical device of the present invention.
  • FIG. 7 is a side view of a surgical device of the present invention.
  • FIG. 7A is an end view of the moveable guard of FIG. 7 in isolation.
  • reusable surgical devices include at least one generally cylindrical handle with a distal end that carries an instrument for performing a medical procedure.
  • Surgical knives as more fully described below in accordance with preferred embodiments of the present invention, are typical of such reusable surgical devices. Although a surgical knife is illustrated in this specification, those skilled in the art will readily appreciate that the instant invention includes all surgical devices and the instrument that is carried.
  • FIG. 1 is a partial cross-section view of a surgical device of the present invention.
  • the surgical device includes a body 10 carrying an instrument 16 and a protective guard 20 .
  • Body 10 includes a generally cylindrical handle portion 12 aft and a tip portion 14 forward.
  • Tip 14 may have a flat distal end or, as is often the case, a frustoconical distal end.
  • tip 14 also includes an appropriate mechanism (not shown) for mounting instrument 16 .
  • Instrument 16 is illustrated as a cutting blade throughout the Figures, however, it should be reliezed that instrument 16 may include any medical instrument, such as, but not limited to, linear and non-linear blades, and linear and non-linear hooks, picks, scissors, picks, forceps, probes, lens manipulators, markers, collar buttons, choppers, cystotomes irrigation needles, cannulas, spatulas and dilators.
  • Blade 16 may be a diamond or other gem, metal or synthetic blade that will, with proper handling, keep a very sharp edge over repeated uses. Blade 16 may include one or more bends or angles so as to be properly aligned with body 10 and so as to be disposed within guard 20 when guard 20 is in the closed position.
  • FIG. 1 also shows a reduced diameter portion 18 of knife body 10 disposed between and interconnected with handle portion 12 and tip 14 .
  • Guard 20 (shown in a locked open position) has an end wall portion 22 forming an opening disposed around reduced diameter portion 18 .
  • end wall portion 22 includes a locking mechanism shown as interior female threads 24 which engage corresponding locking mechanisms shown as male threads 26 and male threads 28 formed on the exterior of reduced diameter portion 18 .
  • guard 20 may be rotated to engage threads 24 with threads 26 in order to lock guard 20 in an open position so that the surgical knife may be used normally.
  • guard 20 In this locked open position, guard 20 generally covers reduced diameter portion 18 in order to form a natural extension of handle portion 12 .
  • the outside diameter of guard 20 is substantially the same as the outside diameter of handle 12 , such that when guard 10 is in the open position and locking mechanism 24 is engaged a substantially continuous surface with handle 12 is provided.
  • Guard 20 is preferably formed from a translucent material through which a person handling the surgical knife in the safe or locked open position may be able to view the attached blade 16 without the necessity of moving guard 20 to the unsafe or locked open position.
  • This configuration reduces the potential for selecting an improper surgical device during surgery by permitting rapid visual identification of the particular size and type of instrument 16 .
  • This configuration also improves safety during routine handling of the surgical knife by visibly differentiating handle portion 12 from tip 14 carrying blade 16 .
  • body 10 and guard 20 should in the preferred, reusable embodiment be formed from hard, durable, and heat resistant plastics, composites, fiber-impregnated resins, or metals.
  • a translucent guard 20 when it is desirable to employ a translucent guard 20 as above, it should be formed from suitable translucent plastics. These types of materials are resistant to the heat and fluids required to clean and sterilize surgical devices after each use.
  • FIG. 2 illustrates the surgical device of the present invention with guard 20 locked in the closed position to protect and cover blade 16 .
  • Guard 20 has been moved forward in the direction of tip 14 of body 10 . From the locked-open position discussed above, the locked-closed position is achieved by counter-rotating guard 20 to disengage threads 24 and 26 so that a user may slide guard 20 forward and engage threads 24 with a second set of threads 28 formed on the exterior of reduced diameter portion 18 forward of first threads 24 .
  • Guard 20 is a generally a cylindrical sleeve having an inside diameter that is slightly greater than the corresponding outside diameter of the generally cylindrical portion of forward tip 14 .
  • the inside diameter of the opening formed by the end wall portion 22 should be slightly greater than the outside diameter of reduced diameter portion 18 .
  • FIGS. 1 and 2 depict the outside diameter of the generally cylindrical portion of forward tip 14 as having generally the same outside diameter as that of handle portion 12 of knife body 10 .
  • the outside diameter of forward tip 14 need not be the same as the outside diameter of handle portion 12 .
  • the outside diameter of tip 14 should be less than the inside diameter of guard 20 .
  • handle portion 12 of body 10 should include at least a portion of larger diameter than the outside diameter of reduced diameter portion 18 . This preferred arrangement facilitates securely locking guard 20 in an open position by forming a screw stop to mechanically prevent end wall portion 22 of guard 20 from extending onto handle portion 12 and past threads 24 .
  • handle portion 12 need not have the same diameter along its entire length; for some embodiments, handle portion 12 might have a tapered configuration (not shown), with the narrow portion of the taper at the end of body 10 opposite blade 16 .
  • the distance between threads 26 and 28 on reduced diameter portion 18 should be sufficient to allow for the length of guard 26 to cover threads 28 when guard 20 is in the locked open position and allow guard 20 to extend somewhat beyond blade 16 when guard 20 is placed in the locked closed position.
  • the length of guard 20 is selected so that it will extend beyond blade 16 when in the locked closed position, and is thus dependent upon the length of tip 14 and any mounting for blade 16 , as well as the length of blade 16 when mounted.
  • FIGS. 3 and 3 A illustrate guard 20 with a slot 30 formed through a wall of the generally cylindrical, sleeve-shaped guard 20 .
  • slot 30 facilitates the entry of cleaning agents and sterilizing steam into the small, otherwise covered spaces under guard 20 , without the need to remove and potentially lose guard 20 .
  • alternative openings may be formed in guard 20 to serve this same purpose.
  • FIG. 4 shows multiple slots 30 (designated with the single reference numeral 30 ) formed at different points around the circumference of guard 20 in order to facilitate the flow of cleaning agents and sterilizing steam from several different angles around the circumference of guard 20 .
  • FIG. 5 shows a single slot 30 as shown in FIG. 3 , but extending through threads 24 of guard 20 .
  • the configuration shown in FIG. 5 facilitates direct exposure of threads 24 and threads 26 to cleaning and sterilizing agents.
  • a multitude of alternative openings may be provided in different shapes, sizes, and positions in order to facilitate cleaning and sterilizing. Examples are shown in FIG. 6 , which illustrates a plurality of holes 32 (shown with common reference) in guard 20 , and FIG. 7 , which illustrates a spiral opening 34 , both of which facilitate cleaning and sterilizing the underside of guard 20 , portion 18 , and threads 24 and 28 (or other locking mechanisms).
  • slot 30 may be extended beyond threads 24 .
  • Such a configuration permits threads 24 on guard 20 to expand if guard 20 is overtightened on body 10 . Expansion of threads 24 on guard 20 permits those threads 24 to “skip” on threads 26 and 28 on body 10 . As a result, guard 20 is protected against overtightening, because excess torque causes threads 24 on guard 20 to loosen relative to corresponding threads 26 or 28 on body 10 . In this way, instrument 16 remains easily accessible.
  • slots 30 permit the expanding of the opening in end wall 22 to facilitate placing guard 20 on body 10 , by expanding over or “skipping” over corresponding threads 28 .
  • guard 20 is preferably provided with a grip.
  • the otherwise smooth outer surface of guard 20 may include a multitude of grips within the scope of the present invention.
  • a plurality of ridges 40 may be spaced around the outside circumference of guard 20 .
  • FIG. 7 and corresponding FIG. 7A end view of guard 20
  • a plurality of bumps or nubs 42 dispersed around the outside circumference of guard 20 .
  • Any of the foregoing gripping mechanisms preferably form an exterior surface of guard 20 which is not substantially smooth and cylindrical, and thus forming a surgical device that is easier to manipulate and not prone to inadvertently rolling off a sterile surgical field.
  • guard 20 may be assembled on body 10 .
  • portion 18 may screw into (or otherwise be fixedly attached to) handle portion 12 at or near threads 26 , thus allowing guard 20 to be positioned on portion 18 prior to attachment to handle portion 12 .
  • guard 20 may be placed on portion 18 prior to attachment of tip 14 .
  • the particular mechanism chosen for securing guard 20 onto body 10 should preferably prevent inadvertent removal of guard 20 from body 10 during normal handling. Accordingly, during normal operation, guard 20 stays on body 10 and forms an integral extension of handle portion 12 during use of instrument 16 .
  • the locking mechanism may include two or more grooves formed on the interior of guard 20 that lock guard 20 open or closed by interaction with matching spring-loaded balls.
  • spring-loaded (coiled spring or leaf spring) detents may be employed to “click” into grooves or notches in order to lock guard 20 into one of its two positions.
  • a bowed leaf spring attached at both ends of a reduced diameter portion, with a rounded projection on their upper-most portion to serve as a spring-loaded detent.
  • a snap ring arrangement could be used as a detent to “click” into grooves to lock guard 20 into position.

Abstract

A surgical device having an instrument connected to a handle with a substantially cylindrical guard moveable between an open position exposing the instrument for use and a closed position substantially covering the instrument. The guard having at least one opening formed through a wall and extending substantially to or continuous with an end wall opening.

Description

    RELATED APPLICATIONS
  • This application is a continuation of application Ser. No. 10/016,984 entitled Protection System for Surgical Instruments, filed on Dec. 7, 2001, which is incorporated herein by reference.
  • FIELD OF THE INVENTION
  • The present invention relates in general to surgical devices and more particularly to a surgical device having a protector moveable between an open position exposing an instrument and a closed position covering the instrument.
  • BACKGROUND
  • Surgical devices include a working end or instrument that may be delicate and/or have a sharp point or cutting edge. Examples of such instruments include scalpels, blades, hooks (such as Sinskey hooks, Bonn hooks, insertion hooks, twist hooks and the like), scissors (such as retinal scissors and the like), picks (such as retinal picks and the like), forceps, probes, lens manipulators, markers, collar buttons, choppers, cystotomes irrigation needles and cannulas, spatulas (such as Castroviejo spatulas and the like), and dilators. Most often, these surgical devices include at least one generally cylindrical handle with a distal end that houses instrument. Surgical knives that include a cutting blade at a distal end of the handle are typical of such instruments, and much of the prior art pertaining to protection for such instruments is directed at protection for surgical knives. However, the instant invention applies equally to the protection of non-sharp instruments.
  • Surgical devices typically have a body with a cutting blade or other operable instrument at one end of the body. The end of the body with the instrument sometimes has a portion that tapers down towards the instrument to provide good visibility of the instrument tip. The instruments can be extremely sharp, and the extreme sharpness may render them hazardous when passed back and forth during use in surgical procedures. If the instrument has already been used on the patient, then there is a potential danger of infection since any sharp or tapered instrument can very easily cut or rip through a surgical glove and the skin beneath the glove. Additionally, if the entire surgical device is not sterilized it may introduce infection in the patient.
  • In general, prior art systems for protection of surgical devices include some form of mechanically operable shield that covers the instrument when not in use, and that may be moved or removed in order to expose the instrument during use.
  • For Example, U.S. Pat. No. 5,254,128 to Mesa (incorporated herein by reference) discloses a surgical knife with a blade protector axially moveable between two positions, namely, opened for normal use and closed for storage or safe handling. The blade protector may be fixed in either position. While this arrangement solves some of the limitations of the prior art surgical devices, other common limitations still exist.
  • It is therefore a desire of the present invention to address the limitations and disadvantages of the prior art surgical devices.
  • SUMMARY OF THE INVENTION
  • In view of the foregoing and other considerations, the present invention relates to surgical devices having a movable guard for protecting the device's instrument.
  • Accordingly, a surgical device is provided. The surgical device includes a body having a reduced diameter portion between a handle portion and a tip portion carrying an instrument, an elongated, substantially cylindrical guard having an end wall forming a first opening for receiving the reduced diameter portion and a second opening formed opposite the first opening, is disposed on the body wherein the end wall portion is slidable along the length of the reduced diameter portion between a closed position with the guard substantially covering the instrument and an open position where the instrument is uncovered. A slot is formed between the first and second openings continuous with the first opening. The surgical device includes a locking mechanism for engaging a portion of the end wall portion for locking the guard in either the closed or open position.
  • The body may be formed of one or more elements, for example, by the interconnection between the tip portion with the reduced diameter portion and the handle portion. The body of the surgical device may be a unitary member, thus reducing costs of manufacturing a multipart body.
  • The locking mechanism may of numerous means known in the art. In a preferred embodiment the locking mechanism includes threads formed on the end wall engageable with a first set and a second set of threads formed on the reduced diameter portion.
  • The guard or the handle may include protrusions formed on the exterior thereof to prevent inadvertent rolling of the device and/or aide in gripping the device. The guard may be sized so that the outside diameter of the guard is substantially the same as the handle portion of the body when the guard is in the open position.
  • The guard may include one or more slots formed between the first and the second opening continuous with the first opening. The elongated slots provide a mechanism for expanding the first opening to prevent over tightening of the guard in a locked position, for facilitating complete cleaning and sterilization of the device and to aide in placing the guard on the body. The guard may include additional openings formed through the guard to facilitate cleaning of the device.
  • The surgical device may include various instruments well known in the art such as, but not limited to, hooks, choppers, collar buttons and blades. The instruments may be non-linear and/or not parallel to the longitudinal axis of the body. The instruments may include one or more bends or angles to facilitate placement of the instrument within the guard when the guard is in the closed position.
  • A method of constructing a surgical device is provided. The method includes the steps of forming a body having a reduced diameter portion between a handle portion and a tip portion, forming a first set of threads on the reduced diameter portion proximate the handle portion and a second set of threads proximate the tip portion, forming an elongated, substantially cylindrical guard having an end wall forming a first opening and a second opening formed opposite the first opening, wherein the end wall portion has end wall threads engageable with the first and second set of threads, forming at least two slots between the first and second opening continuous with the first opening, expanding the diameter of the first opening and passing the tip and second set of threads through the first opening and slidably positioning the end wall portion about the reduced diameter portion, attaching an instrument to the tip, engaging the end wall threads with the second set of threads locking the guard in a closed position with the guard covering the instrument, and engaging the end wall threads with the first set of threads locking the guard in an open position with the instrument uncovered.
  • As with the description of a surgical device above the method may include steps to provide those desired features.
  • The foregoing has outlined the features and technical advantages of the present invention in order that the detailed description of the invention that follows may be better understood. Additional features and advantages of the invention will be described hereinafter which form the subject of the claims of the invention.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • The foregoing and other features and aspects of the present invention will be best understood with reference to the following detailed description of a specific embodiment of the invention, when read in conjunction with the accompanying drawings, wherein:
  • FIG. 1 is a partial cross-section view of a surgical device of the present invention with a moveable guard in the open position;
  • FIG. 2 is a partial cross-section view of a surgical device of the present invention with a moveable guard in the closed position;
  • FIG. 3 is a side view of another surgical device of the present invention;
  • FIG. 3A is an end view of the moveable guard of FIG. 3 in isolation;
  • FIG. 4 is a side view of another surgical device of the present invention;
  • FIG. 5 is a side view of a surgical device of the present invention;
  • FIG. 6 is a side view of a surgical device of the present invention;
  • FIG. 7 is a side view of a surgical device of the present invention; and
  • FIG. 7A is an end view of the moveable guard of FIG. 7 in isolation.
  • DETAILED DESCRIPTION
  • Refer now to the drawings wherein depicted elements are not necessarily shown to scale and wherein like or similar elements are designated by the same reference numeral through the several views.
  • As mentioned above, many reusable surgical devices include at least one generally cylindrical handle with a distal end that carries an instrument for performing a medical procedure. Surgical knives, as more fully described below in accordance with preferred embodiments of the present invention, are typical of such reusable surgical devices. Although a surgical knife is illustrated in this specification, those skilled in the art will readily appreciate that the instant invention includes all surgical devices and the instrument that is carried.
  • FIG. 1 is a partial cross-section view of a surgical device of the present invention. The surgical device includes a body 10 carrying an instrument 16 and a protective guard 20. Body 10 includes a generally cylindrical handle portion 12 aft and a tip portion 14 forward. Tip 14 may have a flat distal end or, as is often the case, a frustoconical distal end. As would be understood by those skilled in the art, tip 14 also includes an appropriate mechanism (not shown) for mounting instrument 16.
  • Instrument 16 is illustrated as a cutting blade throughout the Figures, however, it should be reliezed that instrument 16 may include any medical instrument, such as, but not limited to, linear and non-linear blades, and linear and non-linear hooks, picks, scissors, picks, forceps, probes, lens manipulators, markers, collar buttons, choppers, cystotomes irrigation needles, cannulas, spatulas and dilators. Blade 16 may be a diamond or other gem, metal or synthetic blade that will, with proper handling, keep a very sharp edge over repeated uses. Blade 16 may include one or more bends or angles so as to be properly aligned with body 10 and so as to be disposed within guard 20 when guard 20 is in the closed position.
  • FIG. 1 also shows a reduced diameter portion 18 of knife body 10 disposed between and interconnected with handle portion 12 and tip 14. Guard 20 (shown in a locked open position) has an end wall portion 22 forming an opening disposed around reduced diameter portion 18. In this embodiment, end wall portion 22 includes a locking mechanism shown as interior female threads 24 which engage corresponding locking mechanisms shown as male threads 26 and male threads 28 formed on the exterior of reduced diameter portion 18. Thus, guard 20 may be rotated to engage threads 24 with threads 26 in order to lock guard 20 in an open position so that the surgical knife may be used normally. In this locked open position, guard 20 generally covers reduced diameter portion 18 in order to form a natural extension of handle portion 12. As shown in FIG. 1, the outside diameter of guard 20 is substantially the same as the outside diameter of handle 12, such that when guard 10 is in the open position and locking mechanism 24 is engaged a substantially continuous surface with handle 12 is provided.
  • Guard 20 is preferably formed from a translucent material through which a person handling the surgical knife in the safe or locked open position may be able to view the attached blade 16 without the necessity of moving guard 20 to the unsafe or locked open position. This configuration reduces the potential for selecting an improper surgical device during surgery by permitting rapid visual identification of the particular size and type of instrument 16. This configuration also improves safety during routine handling of the surgical knife by visibly differentiating handle portion 12 from tip 14 carrying blade 16.
  • As would be understood by those skilled in the art, body 10 and guard 20 should in the preferred, reusable embodiment be formed from hard, durable, and heat resistant plastics, composites, fiber-impregnated resins, or metals. When it is desirable to employ a translucent guard 20 as above, it should be formed from suitable translucent plastics. These types of materials are resistant to the heat and fluids required to clean and sterilize surgical devices after each use.
  • FIG. 2 illustrates the surgical device of the present invention with guard 20 locked in the closed position to protect and cover blade 16. Guard 20 has been moved forward in the direction of tip 14 of body 10. From the locked-open position discussed above, the locked-closed position is achieved by counter-rotating guard 20 to disengage threads 24 and 26 so that a user may slide guard 20 forward and engage threads 24 with a second set of threads 28 formed on the exterior of reduced diameter portion 18 forward of first threads 24.
  • Guard 20 is a generally a cylindrical sleeve having an inside diameter that is slightly greater than the corresponding outside diameter of the generally cylindrical portion of forward tip 14. When reduced diameter portion 18 is employed, the inside diameter of the opening formed by the end wall portion 22 should be slightly greater than the outside diameter of reduced diameter portion 18.
  • FIGS. 1 and 2 depict the outside diameter of the generally cylindrical portion of forward tip 14 as having generally the same outside diameter as that of handle portion 12 of knife body 10. However, it should be readily apparent that the outside diameter of forward tip 14 need not be the same as the outside diameter of handle portion 12. However, in order to function properly so as to lock guard 20 in a closed position, the outside diameter of tip 14 should be less than the inside diameter of guard 20. Preferably, when reduced diameter portion 18 is employed, handle portion 12 of body 10 should include at least a portion of larger diameter than the outside diameter of reduced diameter portion 18. This preferred arrangement facilitates securely locking guard 20 in an open position by forming a screw stop to mechanically prevent end wall portion 22 of guard 20 from extending onto handle portion 12 and past threads 24. Similarly, the outside diameter of the generally cylindrical portion of forward tip 14 must be larger than the outside diameter of reduced diameter portion 18 to serve as a forward physical stop when guard 20 is in the locked closed or instrument protective position. Moreover, handle portion 12 need not have the same diameter along its entire length; for some embodiments, handle portion 12 might have a tapered configuration (not shown), with the narrow portion of the taper at the end of body 10 opposite blade 16.
  • In general, the distance between threads 26 and 28 on reduced diameter portion 18 should be sufficient to allow for the length of guard 26 to cover threads 28 when guard 20 is in the locked open position and allow guard 20 to extend somewhat beyond blade 16 when guard 20 is placed in the locked closed position. Similarly, the length of guard 20 is selected so that it will extend beyond blade 16 when in the locked closed position, and is thus dependent upon the length of tip 14 and any mounting for blade 16, as well as the length of blade 16 when mounted. Once the approximate position of threads 28 (or other locking mechanism) are selected, then the length of guard 20 may be determined; then the position of threads 24 (or other locking mechanism) determined; and finally the length of reduced diameter portion 18 may be determined.
  • Reusable surgical devices must be cleaned and sterilized between uses. As is understood by those skilled in the art, this process typically involves exposing the surgical device to cleaning agents and high temperature sterilization (such as steam autoclaves, etc.). The present invention includes a guard with one or more slots, openings, or gaps therethrough sufficient to expose portions of underlying body 10 to the cleaning mechanisms and sterilizing steam. FIGS. 3 and 3A illustrate guard 20 with a slot 30 formed through a wall of the generally cylindrical, sleeve-shaped guard 20. As would be understood by those skilled in the art with reference to this specification, slot 30 facilitates the entry of cleaning agents and sterilizing steam into the small, otherwise covered spaces under guard 20, without the need to remove and potentially lose guard 20. As is illustrated in FIGS. 4 through 7A, alternative openings may be formed in guard 20 to serve this same purpose.
  • For example, FIG. 4 shows multiple slots 30 (designated with the single reference numeral 30) formed at different points around the circumference of guard 20 in order to facilitate the flow of cleaning agents and sterilizing steam from several different angles around the circumference of guard 20. Similarly, FIG. 5 shows a single slot 30 as shown in FIG. 3, but extending through threads 24 of guard 20. The configuration shown in FIG. 5 facilitates direct exposure of threads 24 and threads 26 to cleaning and sterilizing agents. A multitude of alternative openings may be provided in different shapes, sizes, and positions in order to facilitate cleaning and sterilizing. Examples are shown in FIG. 6, which illustrates a plurality of holes 32 (shown with common reference) in guard 20, and FIG. 7, which illustrates a spiral opening 34, both of which facilitate cleaning and sterilizing the underside of guard 20, portion 18, and threads 24 and 28 (or other locking mechanisms).
  • In an alternative to the embodiment as shown in FIG. 5 where a slot 30 extends through threads 24 of guard 20, slot 30 may be extended beyond threads 24. Such a configuration permits threads 24 on guard 20 to expand if guard 20 is overtightened on body 10. Expansion of threads 24 on guard 20 permits those threads 24 to “skip” on threads 26 and 28 on body 10. As a result, guard 20 is protected against overtightening, because excess torque causes threads 24 on guard 20 to loosen relative to corresponding threads 26 or 28 on body 10. In this way, instrument 16 remains easily accessible. Additionally, slots 30 permit the expanding of the opening in end wall 22 to facilitate placing guard 20 on body 10, by expanding over or “skipping” over corresponding threads 28.
  • Because surgical devices, including surgical knives, are typically handled with surgical gloves, guard 20 is preferably provided with a grip. The otherwise smooth outer surface of guard 20 may include a multitude of grips within the scope of the present invention. For example, as is shown in FIG. 3 and corresponding FIG. 3A (end view of guard 20), a plurality of ridges 40 may be spaced around the outside circumference of guard 20. In FIG. 7 and corresponding FIG. 7A (end view of guard 20) there is shown a plurality of bumps or nubs 42 dispersed around the outside circumference of guard 20. Any of the foregoing gripping mechanisms preferably form an exterior surface of guard 20 which is not substantially smooth and cylindrical, and thus forming a surgical device that is easier to manipulate and not prone to inadvertently rolling off a sterile surgical field.
  • As would be understood by those skilled in the art, many different ways exist for assembling guard 20 on body 10. For example, portion 18 may screw into (or otherwise be fixedly attached to) handle portion 12 at or near threads 26, thus allowing guard 20 to be positioned on portion 18 prior to attachment to handle portion 12. Alternatively, guard 20 may be placed on portion 18 prior to attachment of tip 14. In any event, to prevent loss of guard 20, the particular mechanism chosen for securing guard 20 onto body 10 should preferably prevent inadvertent removal of guard 20 from body 10 during normal handling. Accordingly, during normal operation, guard 20 stays on body 10 and forms an integral extension of handle portion 12 during use of instrument 16.
  • Although the foregoing figures and corresponding discussion illustrate threads as a preferred locking mechanism, other locking mechanisms may be employed, such as those disclosed in U.S. Pat. No. 5,254,128 which is incorporated herein by reference. For example, as would be understood by those skilled in the art, the locking mechanism may include two or more grooves formed on the interior of guard 20 that lock guard 20 open or closed by interaction with matching spring-loaded balls. In a similar manner, other types of spring-loaded (coiled spring or leaf spring) detents may be employed to “click” into grooves or notches in order to lock guard 20 into one of its two positions. Other examples not shown would include a bowed leaf spring attached at both ends of a reduced diameter portion, with a rounded projection on their upper-most portion to serve as a spring-loaded detent. In addition, a snap ring arrangement could be used as a detent to “click” into grooves to lock guard 20 into position.
  • From the foregoing detailed description of specific embodiments of the invention, it should be apparent that a surgical device with a moveable instrument protector that is novel has been disclosed. Although specific embodiments of the invention have been disclosed herein in some detail, this has been done solely for the purposes of describing various features and aspects of the invention, and is not intended to be limiting with respect to the scope of the invention. It is contemplated that various substitutions, alterations, and/or modifications, including but not limited to those implementation variations which may have been suggested herein, may be made to the disclosed embodiments without departing from the spirit and scope of the invention as defined by the appended claims which follow.

Claims (20)

1. A surgical device comprising:
a body having a reduced diameter portion between a handle portion and a tip portion;
an instrument carried by the tip portion;
an elongated, substantially cylindrical guard having an end wall forming a first opening for receiving the reduced diameter portion and a second opening formed opposite the first opening, wherein the end wall portion is slidable along the length of the reduced diameter portion between a closed position with the guard substantially covering the instrument and an open position where the instrument is uncovered;
a slot formed between the first and second openings continuous with the first opening; and
a locking mechanism for engaging a portion of the end wall portion for locking the guard in either the closed or open position.
2. The surgical device of claim 1 wherein the body is a unitary member.
3. The surgical device of claim 1, wherein the locking mechanism includes threads formed on the end wall engageable with a first set and a second set of threads formed on the reduced diameter portion.
4. The surgical device of claim 1, wherein the guard includes protrusions formed on the exterior thereof.
5. The surgical device of claim 1, wherein the outside diameter of the guard is substantially the same as the handle portion of the body when the guard is in the open position.
6. The surgical device of claim 1, wherein the guard further includes a second slot formed between the first and the second opening continuous with the first opening.
7. The surgical device of claim 1, further including:
a third opening formed through the guard partially exposing the body.
8. The surgical device of claim 1, wherein the instrument is a hook.
9. The surgical device of claim 1, wherein the instrument is a chopper.
10. The surgical device of claim 1, wherein the instrument is a collar button.
11. The surgical device of claim 1, wherein the instrument is a cutting blade.
12. The surgical device of claim 11, wherein the blade is non-linear.
13. A surgical knife comprising:
a body having a reduced diameter portion between a handle portion and a tip portion;
a non-linear blade carried by the tip portion;
an elongated, substantially cylindrical guard having an end wall forming a first opening for receiving the reduced diameter portion and a second opening formed opposite the first opening, wherein the end wall portion is slidable along the length of the reduced diameter portion between a closed position with the guard substantially covering the blade and an open position where the blade is uncovered;
a first slot and a second slot, each slot formed between the first and second openings continuous with the first opening; and
a locking mechanism for engaging a portion of the end wall portion for locking the guard in either the closed or open position.
14. The surgical knife of claim 13, wherein the blade includes at least two bends so as to be disposed within the guard when the guard is in the closed position.
15. The surgical knife of claim 13, wherein the body is a unitary member.
16. The surgical knife of claim 14, wherein the body is a unitary member.
17. The surgical knife of claim 14, wherein the locking mechanism includes threads formed on the end wall engageable with a first set and a second set of threads formed on the reduced diameter portion.
18. The surgical knife of claim 14, wherein the outside diameter of the guard is substantially the same as the handle portion of the body when the guard is in the open position.
19. A method of constructing a surgical device, comparing the steps of: forming a body having a reduced diameter portion between a handle portion and a tip portion;
forming a first set of threads on the reduced diameter portion proximate the handle portion and a second set of threads proximate the tip portion;
forming an elongated, substantially cylindrical guard having an end wall forming a first opening and a second opening formed opposite the first opening, the end wall portion having end wall threads engageable with the first and second set of threads;
forming at least two slots between the first and second opening continuous with the first opening;
expanding the diameter of the first opening and passing the tip and second set of threads through the first opening;
slidably positioning the end wall portion about the reduced diameter portion;
attaching an instrument to the tip;
engaging the end wall threads with the second set of threads locking the guard in a closed position with the guard covering the instrument; and
engaging the end wall threads with the first set of threads locking the guard in an open position with the instrument uncovered.
20. The method of claim 19, further including the step of:
bending the blade in at least two locations so as to dispose the blade within the guard when the guard is in the closed position.
US11/031,862 2001-12-07 2005-01-07 Surgical device with a moveable instrument protector Abandoned US20050119680A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US11/031,862 US20050119680A1 (en) 2001-12-07 2005-01-07 Surgical device with a moveable instrument protector

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/016,984 US6884240B1 (en) 2001-12-07 2001-12-07 Protection system for surgical instruments
US11/031,862 US20050119680A1 (en) 2001-12-07 2005-01-07 Surgical device with a moveable instrument protector

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US10/016,984 Continuation US6884240B1 (en) 2001-12-07 2001-12-07 Protection system for surgical instruments

Publications (1)

Publication Number Publication Date
US20050119680A1 true US20050119680A1 (en) 2005-06-02

Family

ID=34434222

Family Applications (2)

Application Number Title Priority Date Filing Date
US10/016,984 Expired - Lifetime US6884240B1 (en) 2001-12-07 2001-12-07 Protection system for surgical instruments
US11/031,862 Abandoned US20050119680A1 (en) 2001-12-07 2005-01-07 Surgical device with a moveable instrument protector

Family Applications Before (1)

Application Number Title Priority Date Filing Date
US10/016,984 Expired - Lifetime US6884240B1 (en) 2001-12-07 2001-12-07 Protection system for surgical instruments

Country Status (1)

Country Link
US (2) US6884240B1 (en)

Cited By (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050015104A1 (en) * 2003-04-22 2005-01-20 Morawski Michael J. Surgical knife safety handle
US20060085019A1 (en) * 2004-10-20 2006-04-20 Becton, Dickinson And Company Surgical knife safety handle having user operable lock
US7156231B1 (en) 2005-11-01 2007-01-02 Georgene Austria Sharp blade protection device
US20070060934A1 (en) * 2005-09-14 2007-03-15 Rasco James E Scalpel blade protector
US20080208341A1 (en) * 2006-12-29 2008-08-28 Providence Medical Technology, Inc. Cervical distraction method
US20090131963A1 (en) * 2005-09-14 2009-05-21 James Edwin Rasco Scalpel blade protector
US20090204135A1 (en) * 2008-02-07 2009-08-13 Becton, Dickinson And Company Retractable safety knife
US20100125290A1 (en) * 2008-11-20 2010-05-20 Gregory Allen Auchter Guarded surgical knife handle
US20100125293A1 (en) * 2008-11-20 2010-05-20 Gregory Allen Auchter Guarded surgical knife handle
US20110106122A1 (en) * 2009-11-04 2011-05-05 Cetola Michael A Modular Scalpel with Retractable Blade
EP2384690A1 (en) * 2006-09-26 2011-11-09 K2M, Inc. Minimally invasive retractor and method of use
US20120215241A1 (en) * 2010-04-09 2012-08-23 Oasis Medical, Inc. Micro surgical knife with safety feature
US8267966B2 (en) 2008-06-06 2012-09-18 Providence Medical Technology, Inc. Facet joint implants and delivery tools
US8361152B2 (en) 2008-06-06 2013-01-29 Providence Medical Technology, Inc. Facet joint implants and delivery tools
USD685091S1 (en) 2003-04-22 2013-06-25 Beaver-Vistec International (US), Inc. Surgical knife safety handle guard
US8512347B2 (en) 2008-06-06 2013-08-20 Providence Medical Technology, Inc. Cervical distraction/implant delivery device
US8603124B1 (en) * 2010-11-23 2013-12-10 Robert Hatch Modified surgical scalpel with polyurethane mated sheath for ultrasound assisted carpal tunnel surgery
US8981914B1 (en) * 2010-09-27 2015-03-17 University of Pittsburgh—of the Commonwealth System of Higher Education Portable haptic force magnifier
US9005288B2 (en) 2008-01-09 2015-04-14 Providence Medical Techonlogy, Inc. Methods and apparatus for accessing and treating the facet joint
WO2015073480A1 (en) * 2013-11-12 2015-05-21 Medtronic, Inc. Implant tool with a sheath and with a rod including an attachment feature
USD732667S1 (en) 2012-10-23 2015-06-23 Providence Medical Technology, Inc. Cage spinal implant
USD745156S1 (en) 2012-10-23 2015-12-08 Providence Medical Technology, Inc. Spinal implant
US9333086B2 (en) 2008-06-06 2016-05-10 Providence Medical Technology, Inc. Spinal facet cage implant
US9381049B2 (en) 2008-06-06 2016-07-05 Providence Medical Technology, Inc. Composite spinal facet implant with textured surfaces
CN106264676A (en) * 2016-10-13 2017-01-04 武汉大学 A kind of multi-angle visible high-intensity high-tenacity is from perception ceramic pin cutter
CN106344116A (en) * 2016-10-13 2017-01-25 武汉大学 Visual intelligent ceramic needle knife
CN106361406A (en) * 2016-10-13 2017-02-01 武汉大学 Multi-angle visual high-intensity and high-toughness intelligent ceramic needle knife
CN106377299A (en) * 2016-10-13 2017-02-08 武汉大学 High-strength high-toughness self-sensing intelligent ceramic needle knife
CN106377298A (en) * 2016-10-13 2017-02-08 武汉大学 Visual high-strength high-toughness intelligent ceramic needle knife
CN106725735A (en) * 2016-12-05 2017-05-31 武汉大学 The ultrahigh resolution visual intelligent pin knife that energy real-time monitoring biological tissue develops
US10118027B2 (en) 2013-11-12 2018-11-06 Medtronic, Inc. Open channel implant tools having an attachment feature and implant techniques utilizing such tools
US10123815B2 (en) 2015-02-13 2018-11-13 Precision Engineered Products, Llc Surgical knife
US10201375B2 (en) 2014-05-28 2019-02-12 Providence Medical Technology, Inc. Lateral mass fixation system
USD841165S1 (en) 2015-10-13 2019-02-19 Providence Medical Technology, Inc. Cervical cage
US10349978B2 (en) 2014-12-18 2019-07-16 Medtronic, Inc. Open channel implant tool with additional lumen and implant techniques utilizing such tools
US10434307B2 (en) 2013-10-15 2019-10-08 Medtronic, Inc. Methods and devices for subcutaneous lead implantation
USD887552S1 (en) 2016-07-01 2020-06-16 Providence Medical Technology, Inc. Cervical cage
US10682243B2 (en) 2015-10-13 2020-06-16 Providence Medical Technology, Inc. Spinal joint implant delivery device and system
USD911525S1 (en) 2019-06-21 2021-02-23 Providence Medical Technology, Inc. Spinal cage
US11065039B2 (en) 2016-06-28 2021-07-20 Providence Medical Technology, Inc. Spinal implant and methods of using the same
US11083491B2 (en) 2014-12-09 2021-08-10 Medtronic, Inc. Extravascular implant tools utilizing a bore-in mechanism and implant techniques using such tools
USD933230S1 (en) 2019-04-15 2021-10-12 Providence Medical Technology, Inc. Cervical cage
US11224521B2 (en) 2008-06-06 2022-01-18 Providence Medical Technology, Inc. Cervical distraction/implant delivery device
USD945621S1 (en) 2020-02-27 2022-03-08 Providence Medical Technology, Inc. Spinal cage
US11272964B2 (en) 2008-06-06 2022-03-15 Providence Medical Technology, Inc. Vertebral joint implants and delivery tools
US11648128B2 (en) 2018-01-04 2023-05-16 Providence Medical Technology, Inc. Facet screw and delivery device
US11871968B2 (en) 2017-05-19 2024-01-16 Providence Medical Technology, Inc. Spinal fixation access and delivery system

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7913402B2 (en) * 2001-11-13 2011-03-29 Acme United Corporation Coating for cutting implements
US7934319B2 (en) * 2002-10-28 2011-05-03 Acme United Corporation Pencil-sharpening device
GB0322610D0 (en) * 2003-09-26 2003-10-29 Royal College Of Art Cutlery set assembly
US8409231B2 (en) * 2004-09-13 2013-04-02 University Of Massachusetts Scalpel handle
US20080051813A1 (en) * 2004-09-13 2008-02-28 University Of Massachusetts Adapter Sleeve
US8015712B2 (en) * 2004-10-29 2011-09-13 Medipurpose Pte Ltd Safety scalpel
CN101094616B (en) * 2004-10-29 2010-09-15 医用私人有限公司 Safety scalpel
US8282662B2 (en) * 2005-02-02 2012-10-09 Ansell Sandell Medical Solutions LLC Medical sheath for scalpel handle with retractable blade guard
US20070074730A1 (en) * 2005-10-03 2007-04-05 Nanduri Padma Conductive keratoplasty probe guide device and methods thereof
CA2642373C (en) * 2006-02-27 2014-06-03 Feather Safety Razor Co., Ltd. Edged tool
DE102006049702A1 (en) * 2006-10-18 2008-04-30 Geuder Ag medical hand-held device
EP1935348B1 (en) * 2006-12-22 2013-09-04 The Spectranetics Corporation Tissue separating systems
US9028520B2 (en) 2006-12-22 2015-05-12 The Spectranetics Corporation Tissue separating systems and methods
US8961551B2 (en) * 2006-12-22 2015-02-24 The Spectranetics Corporation Retractable separating systems and methods
EP2139407B1 (en) * 2007-04-26 2016-04-13 Poly Medicure Limited A surgical safety scalpel
US20100024219A1 (en) * 2008-07-30 2010-02-04 Alltrade Tools Llc Hobby knife
US20100146799A1 (en) * 2008-12-12 2010-06-17 Unique Technologies Inc. Guarded Surgical Knife
TWI461175B (en) * 2010-06-28 2014-11-21 Medipurpose Pte Ltd Safety scalpel
DE102011114360B3 (en) * 2011-09-27 2012-11-15 Walter Dehn Device for removing ticks and foreign bodies from the skin of humans and animals
US9949753B2 (en) 2012-09-14 2018-04-24 The Spectranetics Corporation Tissue slitting methods and systems
WO2014143511A1 (en) * 2013-03-11 2014-09-18 Medtronic, Inc. Apparatus facilitating the repositioning of implanted medical devices
US9283040B2 (en) 2013-03-13 2016-03-15 The Spectranetics Corporation Device and method of ablative cutting with helical tip
US9883885B2 (en) 2013-03-13 2018-02-06 The Spectranetics Corporation System and method of ablative cutting and pulsed vacuum aspiration
US10383691B2 (en) 2013-03-13 2019-08-20 The Spectranetics Corporation Last catheter with helical internal lumen
US9456872B2 (en) 2013-03-13 2016-10-04 The Spectranetics Corporation Laser ablation catheter
US9291663B2 (en) 2013-03-13 2016-03-22 The Spectranetics Corporation Alarm for lead insulation abnormality
US10835279B2 (en) 2013-03-14 2020-11-17 Spectranetics Llc Distal end supported tissue slitting apparatus
US9925366B2 (en) 2013-03-15 2018-03-27 The Spectranetics Corporation Surgical instrument for removing an implanted object
US9918737B2 (en) 2013-03-15 2018-03-20 The Spectranetics Corporation Medical device for removing an implanted object
US10136913B2 (en) 2013-03-15 2018-11-27 The Spectranetics Corporation Multiple configuration surgical cutting device
US10448999B2 (en) 2013-03-15 2019-10-22 The Spectranetics Corporation Surgical instrument for removing an implanted object
US10842532B2 (en) 2013-03-15 2020-11-24 Spectranetics Llc Medical device for removing an implanted object
US9668765B2 (en) * 2013-03-15 2017-06-06 The Spectranetics Corporation Retractable blade for lead removal device
WO2017048486A1 (en) 2013-03-15 2017-03-23 The Spectranetics Corporation Medical device for removing an implanted object using laser cut hypotubes
US10568656B2 (en) * 2014-02-28 2020-02-25 Mani, Inc. Medical knife
US10405924B2 (en) 2014-05-30 2019-09-10 The Spectranetics Corporation System and method of ablative cutting and vacuum aspiration through primary orifice and auxiliary side port
USD770616S1 (en) 2015-02-20 2016-11-01 The Spectranetics Corporation Medical device handle
USD765243S1 (en) 2015-02-20 2016-08-30 The Spectranetics Corporation Medical device handle
CN108261226A (en) * 2018-01-15 2018-07-10 苏州专创光电科技有限公司 A kind of projection scalpel used for medical procedures

Citations (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US309863A (en) * 1884-12-30 Pocket-knife
US1116241A (en) * 1912-07-11 1914-11-03 Rockford Sprinkler Company Of Massachusetts Nut.
US2381111A (en) * 1943-05-25 1945-08-07 Edward F Chandler Self-locking nut
US2383692A (en) * 1943-03-29 1945-08-28 Maytag Co Pipe or tube coupling
US3706106A (en) * 1971-01-18 1972-12-19 Norbert Leopoldi Surgical knife
US3905101A (en) * 1974-04-19 1975-09-16 Becton Dickinson Co Disposable surgical scalpel
US3945117A (en) * 1973-02-15 1976-03-23 Rudolph Beaver, Inc. Surgical blade with adjustable blade guard
US4342208A (en) * 1976-10-29 1982-08-03 Stant Inc. Locking gas cap with torque override feature
US4414974A (en) * 1981-06-09 1983-11-15 General Conveyors Limited Microsurgical knife
US4496163A (en) * 1981-08-03 1985-01-29 Bernfeld Kenneth G Adaptors for a collet chuck
US4499898A (en) * 1982-08-23 1985-02-19 Koi Associates Surgical knife with controllably extendable blade and gauge therefor
US4527406A (en) * 1983-04-28 1985-07-09 General Motors Corporation Locking fuel cap
US4552146A (en) * 1982-05-18 1985-11-12 Myocur, Inc. Disposable ophthalmic instrument for performing radial keratotomy on the cornea
US4569133A (en) * 1983-01-06 1986-02-11 Sharpoint, Inc. Depth limited cutter
US4576164A (en) * 1983-11-14 1986-03-18 Richeson W George Knife with locking shroud
US4688570A (en) * 1981-03-09 1987-08-25 The Regents Of The University Of California Ophthalmologic surgical instrument
US4735202A (en) * 1986-10-06 1988-04-05 Alcon Laboratories, Inc. Microsurgical knife with locking blade guard
US4759363A (en) * 1985-09-17 1988-07-26 Jensen Ronald P Scalpel with removable depth guard
US4768509A (en) * 1985-12-07 1988-09-06 Duckworth & Kent Surgical Instruments Limited Surgical knife
US4990044A (en) * 1982-03-19 1991-02-05 Daniel Kimak Threaded push-on fastener
US5222951A (en) * 1992-04-13 1993-06-29 Leonard Bloom Guarded skin hook for surgical use
US5254128A (en) * 1990-10-11 1993-10-19 Micro Engineering, Inc. Surgical knife with attached, movable blade protector
US5275606A (en) * 1992-01-24 1994-01-04 Leonard Bloom Guarded scalpel for surgical use
US5417704A (en) * 1991-12-18 1995-05-23 American Safety Razor Company Disposable surgical scalpel with safety guard
US5545172A (en) * 1994-06-07 1996-08-13 Malvern Technologies, Inc. Rocking foot plate for surgical knife
US5578050A (en) * 1994-04-04 1996-11-26 Webb; Nicholas J. Ergonomic surgical scalpel sleeve
US5657541A (en) * 1995-09-14 1997-08-19 San Diego Swiss Machining Inc. Holder assembly for surgical blade
US5830226A (en) * 1993-04-30 1998-11-03 Eagle Vision, Inc. Microsurgical scalpel assembly
US5868771A (en) * 1997-07-25 1999-02-09 Pabban Development, Inc. Scalpel blade cover
US5873148A (en) * 1997-01-15 1999-02-23 Hand Tool Design Corporation Ergonomic handle system
US5908432A (en) * 1998-03-27 1999-06-01 Pan; Huai C. Scalpel with retractable blade
US5951579A (en) * 1997-10-06 1999-09-14 Dykes; Ronald E. Incision guide for intra-ocular surgery
US5980177A (en) * 1998-03-12 1999-11-09 Schiess; Jennifer E. Fastener
US6022364A (en) * 1995-10-24 2000-02-08 Flumene; Antonio Giovanni Disposable surgical safety scalpel
US6053929A (en) * 1993-12-08 2000-04-25 Becton Dickinson And Company Surgical scalpel
US6113606A (en) * 1997-10-06 2000-09-05 Dykes; Ronald E. Incision guide for intra-ocular surgery
US6122828A (en) * 1999-07-27 2000-09-26 Asterino, Jr.; William M. Retractable blade knife and cutting edge
US6129740A (en) * 1989-04-24 2000-10-10 Michelson; Gary Karlin Instrument handle design
US6197006B1 (en) * 1993-10-11 2001-03-06 Ernst Sigurd Gustaf Folke Wiklund Syringe handle
US6202862B1 (en) * 1999-09-08 2001-03-20 David Paul Acquaviva Tubular yielding holder for various size pens
US6569175B1 (en) * 2001-11-14 2003-05-27 Alcon, Inc. Surgical knife

Patent Citations (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US309863A (en) * 1884-12-30 Pocket-knife
US1116241A (en) * 1912-07-11 1914-11-03 Rockford Sprinkler Company Of Massachusetts Nut.
US2383692A (en) * 1943-03-29 1945-08-28 Maytag Co Pipe or tube coupling
US2381111A (en) * 1943-05-25 1945-08-07 Edward F Chandler Self-locking nut
US3706106A (en) * 1971-01-18 1972-12-19 Norbert Leopoldi Surgical knife
US3945117A (en) * 1973-02-15 1976-03-23 Rudolph Beaver, Inc. Surgical blade with adjustable blade guard
US3905101A (en) * 1974-04-19 1975-09-16 Becton Dickinson Co Disposable surgical scalpel
US4342208A (en) * 1976-10-29 1982-08-03 Stant Inc. Locking gas cap with torque override feature
US4688570A (en) * 1981-03-09 1987-08-25 The Regents Of The University Of California Ophthalmologic surgical instrument
US4414974A (en) * 1981-06-09 1983-11-15 General Conveyors Limited Microsurgical knife
US4496163A (en) * 1981-08-03 1985-01-29 Bernfeld Kenneth G Adaptors for a collet chuck
US4990044A (en) * 1982-03-19 1991-02-05 Daniel Kimak Threaded push-on fastener
US4552146A (en) * 1982-05-18 1985-11-12 Myocur, Inc. Disposable ophthalmic instrument for performing radial keratotomy on the cornea
US4499898A (en) * 1982-08-23 1985-02-19 Koi Associates Surgical knife with controllably extendable blade and gauge therefor
US4569133A (en) * 1983-01-06 1986-02-11 Sharpoint, Inc. Depth limited cutter
US4527406A (en) * 1983-04-28 1985-07-09 General Motors Corporation Locking fuel cap
US4576164A (en) * 1983-11-14 1986-03-18 Richeson W George Knife with locking shroud
US4759363A (en) * 1985-09-17 1988-07-26 Jensen Ronald P Scalpel with removable depth guard
US4768509A (en) * 1985-12-07 1988-09-06 Duckworth & Kent Surgical Instruments Limited Surgical knife
US4735202A (en) * 1986-10-06 1988-04-05 Alcon Laboratories, Inc. Microsurgical knife with locking blade guard
US6129740A (en) * 1989-04-24 2000-10-10 Michelson; Gary Karlin Instrument handle design
US5254128A (en) * 1990-10-11 1993-10-19 Micro Engineering, Inc. Surgical knife with attached, movable blade protector
US5417704A (en) * 1991-12-18 1995-05-23 American Safety Razor Company Disposable surgical scalpel with safety guard
US5275606A (en) * 1992-01-24 1994-01-04 Leonard Bloom Guarded scalpel for surgical use
US5222951A (en) * 1992-04-13 1993-06-29 Leonard Bloom Guarded skin hook for surgical use
US5830226A (en) * 1993-04-30 1998-11-03 Eagle Vision, Inc. Microsurgical scalpel assembly
US6197006B1 (en) * 1993-10-11 2001-03-06 Ernst Sigurd Gustaf Folke Wiklund Syringe handle
US6053929A (en) * 1993-12-08 2000-04-25 Becton Dickinson And Company Surgical scalpel
US5578050A (en) * 1994-04-04 1996-11-26 Webb; Nicholas J. Ergonomic surgical scalpel sleeve
US5545172A (en) * 1994-06-07 1996-08-13 Malvern Technologies, Inc. Rocking foot plate for surgical knife
US5657541A (en) * 1995-09-14 1997-08-19 San Diego Swiss Machining Inc. Holder assembly for surgical blade
US6022364A (en) * 1995-10-24 2000-02-08 Flumene; Antonio Giovanni Disposable surgical safety scalpel
US5873148A (en) * 1997-01-15 1999-02-23 Hand Tool Design Corporation Ergonomic handle system
US5868771A (en) * 1997-07-25 1999-02-09 Pabban Development, Inc. Scalpel blade cover
US5951579A (en) * 1997-10-06 1999-09-14 Dykes; Ronald E. Incision guide for intra-ocular surgery
US6113606A (en) * 1997-10-06 2000-09-05 Dykes; Ronald E. Incision guide for intra-ocular surgery
US5980177A (en) * 1998-03-12 1999-11-09 Schiess; Jennifer E. Fastener
US5908432A (en) * 1998-03-27 1999-06-01 Pan; Huai C. Scalpel with retractable blade
US6122828A (en) * 1999-07-27 2000-09-26 Asterino, Jr.; William M. Retractable blade knife and cutting edge
US6202862B1 (en) * 1999-09-08 2001-03-20 David Paul Acquaviva Tubular yielding holder for various size pens
US6569175B1 (en) * 2001-11-14 2003-05-27 Alcon, Inc. Surgical knife

Cited By (112)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10258367B2 (en) 2003-04-22 2019-04-16 Beaver-Visitec International (Us), Inc. Surgical knife safety handle
US20110092996A1 (en) * 2003-04-22 2011-04-21 Morawski Michael J Surgical knife safety handle
US20050015104A1 (en) * 2003-04-22 2005-01-20 Morawski Michael J. Surgical knife safety handle
USD685091S1 (en) 2003-04-22 2013-06-25 Beaver-Vistec International (US), Inc. Surgical knife safety handle guard
US10271872B2 (en) 2003-04-22 2019-04-30 Beaver-Visitec International (Us), Inc. Surgical knife safety handle
US20080058843A1 (en) * 2003-04-22 2008-03-06 Morawski Michael J Surgical knife safety handle
US7387637B2 (en) 2003-04-22 2008-06-17 Becton, Dickinson And Company Surgical knife safety handle
US7901422B2 (en) 2003-04-22 2011-03-08 Beaver-Visitec International (Us), Inc. Surgical knife safety handle
US7905894B2 (en) 2003-04-22 2011-03-15 Beaver-Visitec International (Us), Inc. Surgical knife safety handle
USD685092S1 (en) 2003-04-22 2013-06-25 Beaver-Visitec International (Us), Inc. Surgical knife safety handle
US20110092995A1 (en) * 2004-10-20 2011-04-21 Cote Dana M Surgical knife safety handle having user operable lock
US20060085019A1 (en) * 2004-10-20 2006-04-20 Becton, Dickinson And Company Surgical knife safety handle having user operable lock
US11779368B2 (en) 2004-10-20 2023-10-10 Beaver-Visitec International (Us), Inc. Surgical knife safety handle having user operable lock
US9480495B2 (en) 2004-10-20 2016-11-01 Beaver-Visitec International (Us), Inc. Surgical knife safety handle having user operable lock
US8814893B2 (en) 2004-10-20 2014-08-26 Beaver-Visitec International (Us), Inc. Surgical knife safety handle having user operable lock
US10357279B2 (en) 2004-10-20 2019-07-23 Beaver-Visitec International (Us), Inc. Surgical knife safety handle having user operable lock
US11109886B2 (en) 2004-10-20 2021-09-07 Beaver-Visitec International (Us), Inc. Surgical knife safety handle having user operable lock
US7909840B2 (en) 2004-10-20 2011-03-22 Beaver-Visitec International (Us), Inc. Surgical knife safety handle having user operable lock
US8114103B2 (en) 2005-09-14 2012-02-14 James Edwin Rasco Scalpel blade protector
US20070060934A1 (en) * 2005-09-14 2007-03-15 Rasco James E Scalpel blade protector
US20090131963A1 (en) * 2005-09-14 2009-05-21 James Edwin Rasco Scalpel blade protector
US7159713B1 (en) 2005-11-01 2007-01-09 Georgene Austria Sharp blade protection device
US7156231B1 (en) 2005-11-01 2007-01-02 Georgene Austria Sharp blade protection device
EP2384690A1 (en) * 2006-09-26 2011-11-09 K2M, Inc. Minimally invasive retractor and method of use
US10219910B2 (en) 2006-12-29 2019-03-05 Providence Medical Technology, Inc. Cervical distraction method
US8348979B2 (en) 2006-12-29 2013-01-08 Providence Medical Technology, Inc. Cervical distraction method
US11285010B2 (en) 2006-12-29 2022-03-29 Providence Medical Technology, Inc. Cervical distraction method
US7824431B2 (en) 2006-12-29 2010-11-02 Providence Medical Technology, Inc. Cervical distraction method
US9622873B2 (en) 2006-12-29 2017-04-18 Providence Medical Technology, Inc. Cervical distraction method
US20080208341A1 (en) * 2006-12-29 2008-08-28 Providence Medical Technology, Inc. Cervical distraction method
US8834530B2 (en) 2006-12-29 2014-09-16 Providence Medical Technology, Inc. Cervical distraction method
US11559408B2 (en) 2008-01-09 2023-01-24 Providence Medical Technology, Inc. Methods and apparatus for accessing and treating the facet joint
US9005288B2 (en) 2008-01-09 2015-04-14 Providence Medical Techonlogy, Inc. Methods and apparatus for accessing and treating the facet joint
US8464430B2 (en) 2008-02-07 2013-06-18 Beaver-Visitec International (Us), Inc. Retractable safety knife
US20090204135A1 (en) * 2008-02-07 2009-08-13 Becton, Dickinson And Company Retractable safety knife
US9044265B2 (en) 2008-02-07 2015-06-02 Beaver-Visitec International (Us), Inc. Retractable safety knife
US10568666B2 (en) 2008-06-06 2020-02-25 Providence Medical Technology, Inc. Vertebral joint implants and delivery tools
US10238501B2 (en) 2008-06-06 2019-03-26 Providence Medical Technology, Inc. Cervical distraction/implant delivery device
US8753377B2 (en) 2008-06-06 2014-06-17 Providence Medical Technology, Inc. Vertebral joint implants and delivery tools
US8828062B2 (en) 2008-06-06 2014-09-09 Providence Medical Technology, Inc. Vertebral joint implants and delivery tools
US8753347B2 (en) 2008-06-06 2014-06-17 Providence Medical Technology, Inc. Vertebral joint implants and delivery tools
US8834472B2 (en) 2008-06-06 2014-09-16 Providence Medical Technology, Inc. Vertebral joint implants and delivery tools
US10588672B2 (en) 2008-06-06 2020-03-17 Providence Medical Technology, Inc. Vertebral joint implants and delivery tools
US10456175B2 (en) 2008-06-06 2019-10-29 Providence Medical Technology, Inc. Vertebral joint implants and delivery tools
US11058553B2 (en) 2008-06-06 2021-07-13 Providence Medical Technology, Inc. Spinal facet cage implant
US8267966B2 (en) 2008-06-06 2012-09-18 Providence Medical Technology, Inc. Facet joint implants and delivery tools
US8753345B2 (en) 2008-06-06 2014-06-17 Providence Medical Technology, Inc. Vertebral joint implants and delivery tools
US9011492B2 (en) 2008-06-06 2015-04-21 Providence Medical Technology, Inc. Facet joint implants and delivery tools
US8361152B2 (en) 2008-06-06 2013-01-29 Providence Medical Technology, Inc. Facet joint implants and delivery tools
US8623054B2 (en) 2008-06-06 2014-01-07 Providence Medical Technology, Inc. Vertebral joint implants and delivery tools
US10226285B2 (en) 2008-06-06 2019-03-12 Providence Medical Technology, Inc. Vertebral joint implants and delivery tools
US8425558B2 (en) 2008-06-06 2013-04-23 Providence Medical Technology, Inc. Vertebral joint implants and delivery tools
US9333086B2 (en) 2008-06-06 2016-05-10 Providence Medical Technology, Inc. Spinal facet cage implant
US9381049B2 (en) 2008-06-06 2016-07-05 Providence Medical Technology, Inc. Composite spinal facet implant with textured surfaces
US11141144B2 (en) 2008-06-06 2021-10-12 Providence Medical Technology, Inc. Facet joint implants and delivery tools
US11890038B2 (en) 2008-06-06 2024-02-06 Providence Medical Technology, Inc. Vertebral joint implants and delivery tools
US10172721B2 (en) 2008-06-06 2019-01-08 Providence Technology, Inc. Spinal facet cage implant
US10149673B2 (en) 2008-06-06 2018-12-11 Providence Medical Technology, Inc. Facet joint implants and delivery tools
US11344339B2 (en) 2008-06-06 2022-05-31 Providence Medical Technology, Inc. Vertebral joint implants and delivery tools
US11224521B2 (en) 2008-06-06 2022-01-18 Providence Medical Technology, Inc. Cervical distraction/implant delivery device
US10039649B2 (en) 2008-06-06 2018-08-07 Providence Medical Technology, Inc. Composite spinal facet implant with textured surfaces
US9622791B2 (en) 2008-06-06 2017-04-18 Providence Medical Technology, Inc. Vertebral joint implants and delivery tools
US8512347B2 (en) 2008-06-06 2013-08-20 Providence Medical Technology, Inc. Cervical distraction/implant delivery device
US9622874B2 (en) 2008-06-06 2017-04-18 Providence Medical Technology, Inc. Cervical distraction/implant delivery device
US9629665B2 (en) 2008-06-06 2017-04-25 Providence Medical Technology, Inc. Vertebral joint implants and delivery tools
US11272964B2 (en) 2008-06-06 2022-03-15 Providence Medical Technology, Inc. Vertebral joint implants and delivery tools
US8992554B2 (en) 2008-11-20 2015-03-31 Alcon Research, Ltd. Guarded surgical knife handle
US20100125293A1 (en) * 2008-11-20 2010-05-20 Gregory Allen Auchter Guarded surgical knife handle
US20100125290A1 (en) * 2008-11-20 2010-05-20 Gregory Allen Auchter Guarded surgical knife handle
US8256330B2 (en) 2008-11-20 2012-09-04 Alcon Research, Ltd. Guarded surgical knife handle
US8764781B2 (en) 2008-11-20 2014-07-01 Alcon Research, Ltd. Guarded surgical knife handle
US8256331B2 (en) 2008-11-20 2012-09-04 Alcon Research, Ltd. Guarded surgical knife handle
US20110106122A1 (en) * 2009-11-04 2011-05-05 Cetola Michael A Modular Scalpel with Retractable Blade
US8943700B2 (en) * 2009-11-04 2015-02-03 Micro Edge, Inc. Modular scalpel with retractable blade
US8875405B2 (en) * 2010-04-09 2014-11-04 Oasis Medical, Inc. Micro surgical knife with safety feature
US20120215241A1 (en) * 2010-04-09 2012-08-23 Oasis Medical, Inc. Micro surgical knife with safety feature
US8981914B1 (en) * 2010-09-27 2015-03-17 University of Pittsburgh—of the Commonwealth System of Higher Education Portable haptic force magnifier
US10722260B1 (en) 2010-11-23 2020-07-28 Robert Hatch Modified surgical scalpel with polyurethane mated sheath: for ultrasound assisted carpal tunnel surgeries
US8603124B1 (en) * 2010-11-23 2013-12-10 Robert Hatch Modified surgical scalpel with polyurethane mated sheath for ultrasound assisted carpal tunnel surgery
USD732667S1 (en) 2012-10-23 2015-06-23 Providence Medical Technology, Inc. Cage spinal implant
USD745156S1 (en) 2012-10-23 2015-12-08 Providence Medical Technology, Inc. Spinal implant
USRE48501E1 (en) 2012-10-23 2021-04-06 Providence Medical Technology, Inc. Cage spinal implant
US10434307B2 (en) 2013-10-15 2019-10-08 Medtronic, Inc. Methods and devices for subcutaneous lead implantation
WO2015073480A1 (en) * 2013-11-12 2015-05-21 Medtronic, Inc. Implant tool with a sheath and with a rod including an attachment feature
US9610436B2 (en) 2013-11-12 2017-04-04 Medtronic, Inc. Implant tools with attachment feature and multi-positional sheath and implant techniques utilizing such tools
US10398471B2 (en) 2013-11-12 2019-09-03 Medtronic, Inc. Implant tools with attachment feature and multi-positional sheath and implant techniques utilizing such tools
US10531893B2 (en) 2013-11-12 2020-01-14 Medtronic, Inc. Extravascular implant tools with open sheath and implant techniques utilizing such tools
US10118027B2 (en) 2013-11-12 2018-11-06 Medtronic, Inc. Open channel implant tools having an attachment feature and implant techniques utilizing such tools
US10792490B2 (en) 2013-11-12 2020-10-06 Medtronic, Inc. Open channel implant tools and implant techniques utilizing such tools
US10201375B2 (en) 2014-05-28 2019-02-12 Providence Medical Technology, Inc. Lateral mass fixation system
US11058466B2 (en) 2014-05-28 2021-07-13 Providence Medical Technology, Inc. Lateral mass fixation system
US11083491B2 (en) 2014-12-09 2021-08-10 Medtronic, Inc. Extravascular implant tools utilizing a bore-in mechanism and implant techniques using such tools
US10349978B2 (en) 2014-12-18 2019-07-16 Medtronic, Inc. Open channel implant tool with additional lumen and implant techniques utilizing such tools
US10123815B2 (en) 2015-02-13 2018-11-13 Precision Engineered Products, Llc Surgical knife
US10682243B2 (en) 2015-10-13 2020-06-16 Providence Medical Technology, Inc. Spinal joint implant delivery device and system
USD884895S1 (en) 2015-10-13 2020-05-19 Providence Medical Technology, Inc. Cervical cage
USD841165S1 (en) 2015-10-13 2019-02-19 Providence Medical Technology, Inc. Cervical cage
US11065039B2 (en) 2016-06-28 2021-07-20 Providence Medical Technology, Inc. Spinal implant and methods of using the same
USD887552S1 (en) 2016-07-01 2020-06-16 Providence Medical Technology, Inc. Cervical cage
CN106377299A (en) * 2016-10-13 2017-02-08 武汉大学 High-strength high-toughness self-sensing intelligent ceramic needle knife
CN106377298B (en) * 2016-10-13 2019-01-18 武汉大学 A kind of visualization high-intensity and high-tenacity intelligent ceramic needle knife
CN106377298A (en) * 2016-10-13 2017-02-08 武汉大学 Visual high-strength high-toughness intelligent ceramic needle knife
CN106361406A (en) * 2016-10-13 2017-02-01 武汉大学 Multi-angle visual high-intensity and high-toughness intelligent ceramic needle knife
CN106344116A (en) * 2016-10-13 2017-01-25 武汉大学 Visual intelligent ceramic needle knife
CN106264676A (en) * 2016-10-13 2017-01-04 武汉大学 A kind of multi-angle visible high-intensity high-tenacity is from perception ceramic pin cutter
CN106725735A (en) * 2016-12-05 2017-05-31 武汉大学 The ultrahigh resolution visual intelligent pin knife that energy real-time monitoring biological tissue develops
US11871968B2 (en) 2017-05-19 2024-01-16 Providence Medical Technology, Inc. Spinal fixation access and delivery system
US11648128B2 (en) 2018-01-04 2023-05-16 Providence Medical Technology, Inc. Facet screw and delivery device
US11813172B2 (en) 2018-01-04 2023-11-14 Providence Medical Technology, Inc. Facet screw and delivery device
USD933230S1 (en) 2019-04-15 2021-10-12 Providence Medical Technology, Inc. Cervical cage
USD911525S1 (en) 2019-06-21 2021-02-23 Providence Medical Technology, Inc. Spinal cage
USD945621S1 (en) 2020-02-27 2022-03-08 Providence Medical Technology, Inc. Spinal cage

Also Published As

Publication number Publication date
US6884240B1 (en) 2005-04-26

Similar Documents

Publication Publication Date Title
US20050119680A1 (en) Surgical device with a moveable instrument protector
AU712212B3 (en) A surgical scalpel with retractable guard
US5222951A (en) Guarded skin hook for surgical use
JP4230775B2 (en) Shielded surgical scalpel
CA2187491C (en) Cleanable guarded surgical scalpel blade remover
US5749886A (en) Disposable guarded finger scalpel for inserting a line in a patient and blade therefor
US5527329A (en) Surgical scalpel
US5545175A (en) Disposable quarded finger scalpel for inserting a line in a patent and lock off therefor
JP3066829B2 (en) Surgical scalpel
AU651543B2 (en) Surgical scalpel with retractable guard
US5250064A (en) Shield for surgical scalpel blades
US5827309A (en) Guarded surgical scalpel with scalpel blade remover
AU705219B2 (en) Guarded surgical scalpel
US7810241B2 (en) Shielded scalpel
CA2135436A1 (en) Guarded surgical scalpel
EP1539001A1 (en) Surgical scalpel with retractable guard
US20110251631A1 (en) Micro surgical knife with safety feature
US20100146799A1 (en) Guarded Surgical Knife
US20180242996A1 (en) Disposable surgical swing scalpel with reusable scissor action handle
US20200405340A1 (en) Retractable Surgical Blade Device and Method
EP0622050B1 (en) Microsurgical scalpel assembly
AU711597B2 (en) Guarded surgical scalpel with scalpel blade remover
AU2003258377B2 (en) Surgical scalpel with retractable guard

Legal Events

Date Code Title Description
AS Assignment

Owner name: DIAMATRIX LIMITED, INC., TEXAS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:DYKES, RONALD E.;REEL/FRAME:025902/0058

Effective date: 20011206

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION