CA2359694A1 - Ring contact for rotatable connection of switch assembly for use in a surgical system - Google Patents

Ring contact for rotatable connection of switch assembly for use in a surgical system Download PDF

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Publication number
CA2359694A1
CA2359694A1 CA002359694A CA2359694A CA2359694A1 CA 2359694 A1 CA2359694 A1 CA 2359694A1 CA 002359694 A CA002359694 A CA 002359694A CA 2359694 A CA2359694 A CA 2359694A CA 2359694 A1 CA2359694 A1 CA 2359694A1
Authority
CA
Canada
Prior art keywords
conductive
handpiece
switch
surgical instrument
end cap
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.)
Granted
Application number
CA002359694A
Other languages
French (fr)
Other versions
CA2359694C (en
Inventor
Robert G. Cook
Richard F. Schwemberger
K. Madan Ashvani
William T. Donofrio
Robert P. Gill
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.)
Ethicon Endo Surgery Inc
Original Assignee
Ethicon Endo-Surgery, Inc.
Robert G. Cook
Richard F. Schwemberger
K. Madan Ashvani
William T. Donofrio
Robert P. Gill
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 Ethicon Endo-Surgery, Inc., Robert G. Cook, Richard F. Schwemberger, K. Madan Ashvani, William T. Donofrio, Robert P. Gill filed Critical Ethicon Endo-Surgery, Inc.
Publication of CA2359694A1 publication Critical patent/CA2359694A1/en
Application granted granted Critical
Publication of CA2359694C publication Critical patent/CA2359694C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
    • A61B18/1402—Probes for open surgery
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A61B2017/00292—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
    • A61B2017/00296—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means mounted on an endoscope
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/0042—Surgical instruments, devices or methods, e.g. tourniquets with special provisions for gripping
    • A61B2017/00424—Surgical instruments, devices or methods, e.g. tourniquets with special provisions for gripping ergonomic, e.g. fitting in fist
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28—Surgical forceps
    • A61B17/29—Forceps for use in minimally invasive surgery
    • A61B2017/2926—Details of heads or jaws
    • A61B2017/2927—Details of heads or jaws the angular position of the head being adjustable with respect to the shaft
    • A61B2017/2929—Details of heads or jaws the angular position of the head being adjustable with respect to the shaft with a head rotatable about the longitudinal axis of the shaft
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
    • A61B2017/320069—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic for ablating tissue
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
    • A61B2017/320071—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic with articulating means for working tip
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
    • A61B2017/320082—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic for incising tissue
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/0091—Handpieces of the surgical instrument or device
    • A61B2018/00916—Handpieces of the surgical instrument or device with means for switching or controlling the main function of the instrument or device
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
    • A61B18/1815—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using microwaves
    • A61B2018/1861—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using microwaves with an instrument inserted into a body lumen or cavity, e.g. a catheter

Abstract

The present invention provides a surgical handpiece having a switch end cap detachably and rotatably connected to the handpiece body. A surgical instrument is inserted within the handpiece body so that a portion thereof extends beyond the handpiece body and is actuated to perform a surgical operation. The switch end cap includes a switch mechanism having one or more switch button members for selectively signaling the level of power to be delivered to the handpiece from a power source. According to one aspect of the present invention, the switch mechanism within the switch end cap is electrically 1o connected to the handpiece body in such a manner that permits the switch end cap to be freely rotated about the handpiece body, while still maintaining the electrical connection therebetween. This is accomplished by having conductive finger members and complementary conductive members provide the electrical connection between the switch end cap and the handpiece body. This permits a user to position the switch end cap in a desired location relative to the handpiece body and the instrument.

Claims (39)

1. A surgical instrument handpiece comprising:
a handpiece body having distal and proximal ends, the proximal end receiving an electrical cable for providing power to the handpiece, the handpiece body including a first conductive member;
a switch end cap connected to the handpiece body, the switch end cap including a switch mechanism for selectively controlling delivery of power to the handpiece, the switch end cap having a second conductive member which mates with the first conductive member to provide an electrical connection between the handpiece body and the switch end cap, the switch end cap being rotatable about the handpiece body while the electrical connection is maintained between the handpiece body and the switch end cap;
and an instrument detachably connected to the handpiece body.
2. The surgical instrument handpiece of claim 1, wherein the instrument is ultrasonically vibrated for performing a surgical operation.
3. The surgical instrument handpiece of claim 1, wherein the handpiece body includes a horn member disposed therein and extending along a longitudinal axis thereof, the instrument being detachably connected to one end of the horn member.
4. The surgical instrument handpiece of claim 1, wherein the first conductive member comprises a first conductive ring element disposed within the handpiece body so that the first conductive ring element intimately contacts the second conductive member to provide the electrical connection.
5. The surgical instrument handpiece of claim 4, wherein the first conductive ring element includes a plurality of conductive fingers connected in an annular ring, the fingers contacting and seating against a conductive bore member disposed within the switch end cap, the instrument extending through an opening formed through the conductive bore member so that a portion thereof extends beyond the switch end cap.
6. The surgical instrument handpiece of claim 4, wherein the handpiece body is formed of a conductive material so that the handpiece body itself acts as a conductive body contact.
7. The surgical instrument handpiece of claim 6, wherein the first conductive ring element includes a plurality of conductive fingers connected in an annular ring, the fingers being radially spaced within a cavity formed at the distal end of the handpiece body, the plurality of fingers being electrically isolated from the conductive body by a spacer member disposed therebetween.
8. The surgical instrument handpiece of claim 6, wherein the conductive body contact is electrically connected to the electrical cable.
9. The surgical instrument handpiece of claim 4, wherein the first conductive ring element is electrically connected to the electrical cable by at least one wire.
10. The surgical instrument handpiece of claim 4, wherein the handpiece body includes a flange member formed at the distal end thereof, a portion of an outer shell of the switch end cap being detachably connected about the flange member.
11. The surgical instrument handpiece of claim 1, wherein the switch end cap includes an outer shell having a bore extending therethrough from the distal end to the proximal end.
12. The surgical instrument handpiece of claim 1 l, wherein the switch mechanism includes one or more switch button members operatively attached to the outer shell, each of the one or more switch button members having a first switch setting and a second switch setting.
13. The surgical instrument handpiece of claim 12, wherein the first switch setting is a maximum power setting and the second switch setting is a minimum power setting.
14. The surgical instrument handpiece of claim 12, wherein activation of one of the first and second switch settings controls turning on or off certain preselected console functions.
15. The surgical instrument handpiece of claim 11, wherein the one or more switch button members each are formed with an inactive center region for resting of a finger without inadvertently activating the handpiece.
16. The surgical instrument handpiece of claim 1, wherein the switch mechanism includes at least one printed circuit board disposed within the switch end cap, the printed circuit board being electrically connected to the first conductive member so that actuation of the switch mechanism causes current to flow through the printed circuit board and the instrument is vibrated.
17. The surgical instrument handpiece of claim 1, wherein the switch mechanism comprises:
a pair of printed circuit boards disposed about a conductive bore member extending through the switch end cap, a pair of switch button members electrically connected to the first conductive member, each of the first and second switch button members having a first switch setting and a second switch setting, each of the switch button members selectively contacting one of the printed circuit boards so that actuation of the first switch setting generates a first control signal and actuation of the second switch setting generates a second control signal.
18. The surgical instrument handpiece of claim 17, wherein the first control signal is delivered to a power source and causes the instrument to be actuated at maximum power, the second control signal being delivered to the power source and causing the instrument to be actuated at a minimum power.
19. The surgical instrument handpiece of claim 17, wherein the second conductive member comprises a conductive bore member extending through an outer shell of the switch end cap, the instrument being received within and extending through the bore member and the first conductive member further including a conductive ring member disposed between the conductive bore member and the outer shell.
20. The surgical instrument handpiece of claim 19, wherein the conductive ring member is coupled to a spacer member disposed about the conductive bore member so that the conductive ring member is electrically isolated from the conductive bore member.
21. The surgical instrument handpiece of claim 19, wherein the conductive bore member comprises a metal cylindrical tube.
22. The surgical instrument handpiece of claim 19, wherein the conductive ring member includes a plurality of conductive fingers connected in an annular ring and disposed radially about the conductive bore member, the conductive fingers electrically contacting the handpiece body which acts as a conductive member so that a first electrical pathway from the cable is defined by the conductive handpiece body and the conductive ring member, whereby during rotation of the switch end cap, the conductive fingers travel radially in contact with the handpiece body.
23. The surgical instrument handpiece of claim 19, wherein the conductive bore member intimately contacts a plurality of conductive fingers which formed a part of the first conductive element and are electrically connected to the cable so that a second electrical pathway from the cable is defined by the conductive fingers of the handpiece body and the conductive bore member, whereby during rotation of the switch end cap, the conductive fingers travel radially in contact with conductive bore member.
24. The surgical instrument handpiece of claim 1, further comprising a seal member disposed within the switch end cap near the distal end thereof, the seal member sealingly engaging the blade so as to prevent foreign matter from entering and contacting the switch mechanism.
25. The surgical instrument handpiece of claim 24, wherein the seal member comprises a ring member.
26. The surgical instrument handpiece of claim 21, wherein the plurality of conductive fingers of the second conductive ring member act as a retention mechanism for detachably retaining the switch end cap to the handpiece body by being biased outwardly so that coupling between the switch end cap and the handpiece body causes the conductive fingers to flex inwardly against the outward bias force applied by the conductive fingers.
27. The surgical instrument handpiece of claim 1, wherein the instrument is one of a surgical blade, scalpel, and shear instrument.
28. A surgical instrument handpiece comprising:
a handpiece body having distal and proximal ends, the proximal end receiving an electrical cable for providing power to the handpiece, the handpiece body including first and second conductive members;
a switch cap detachably connected to the handpiece body, the switch end cap including a switch mechanism for selectively controlling at least one function of the handpiece, the switch end cap having third and fourth conductive members which are complementary to and mate with the first and second conductive members to provide an electrical connection between the handpiece body and the switch end cap, the switch end cap being rotatable about the handpiece body while electrical connection is maintained between the handpiece body and the switch end cap;
an instrument detachably connected to the handpiece body; and wherein activation of a first setting of the switch mechanism causes a first control signal to be delivered across the first and third conductive members for selectively controlling the first function of the handpiece and activation of the a second setting causes a second control signal to be delivered across the second and fourth conductive members for selectively controlling the first function of the handpiece.
29. The surgical instrument handpiece of claim 28, wherein each of the first and second conductive members comprises a ring contact, the first and second conductive ring contacts being electrically isolated from one another.
30. The surgical instrument handpiece of claim 28, wherein the each of the third and fourth conductive members comprises an annular contact member having one or more protruding members extending therefrom, the third and fourth conductive members being electrically isolated from one another, the one or more protruding members engaging the first and second conductive members to provide the electrical connection between the first and third conductive members and the second and fourth conductive members.
31. The surgical instrument handpiece of claim 30, wherein the one or more protruding members comprise resilient contact fingers.
32. The surgical instrument handpiece of claim 30, wherein the one or more protruding members comprise contact pins.
33. The surgical instrument handpiece of claim 28, wherein the third and fourth conductive members are electrically connected to the switch mechanism and the first and second conductive members are electrically connected to a power supply, whereby activation of the switch mechanism causes power of a predetermined magnitude to be delivered to the handpiece when the switch end cap is electrically connected to the handpiece body.
34. The surgical instrument handpiece of claim 28, wherein each of the third and fourth conductive members comprises a ring contact, the third and fourth conductive ring contacts being electrically isolated from one another.
35. The surgical instrument handpiece of claim 28, wherein the each of the first and second conductive members comprises an annular contact member having one or more protruding members extending therefrom, the first and second conductive members being electrically isolated from one another, the one or more protruding members engaging the third and fourth conductive members to provide the electrical connection between the first and third conductive members and the second and fourth conductive members.
36. The surgical instrument handpiece of claim 35, wherein the one or more protruding members comprise resilient contact fingers.
37. The surgical instrument handpiece of claim 35, wherein the one or more protruding members comprise contact pins.
38. A surgical instrument handpiece comprising:
a handpiece body having distal and proximal ends, the proximal end receiving an electrical cable for providing power to the handpiece, the handpiece body including a first conductive split member having first and second contacts separated from one another, the first conductive split member being electrically connected to the cable;
a switch cap detachably connected to the handpiece body, the switch end cap including a switch mechanism for selectively controlling at least one function of the handpiece, the switch end cap having a second conductive split member having first and second contacts separated from one another, the second conductive split member being electrically connected to the switch mechanism such that mating between the first and second conductive split members provides an electrical connection between the handpiece body and the switch end cap, the switch end cap being rotatable about the handpiece body while electrical connection is maintained between the handpiece body and the switch end cap;
an instrument detachably connected to the handpiece body; and wherein activation of a first setting of the switch mechanism causes a first control signal to be delivered across the first and second conductive split members for selectively controlling the first function of the handpiece and activation of the a second setting causes a second control signal to be delivered across the first and second conductive split members for selectively controlling the first function of the handpiece.
39. The surgical instrument handpiece of claim 38, wherein each of the first and second conductive split members comprises a split conductive ring, the first and second contacts of the one of the first and second conductive split members each having one or more protruding contacts which engage the first and second contacts of the other of the first and second conductive split members.
CA2359694A 2000-10-20 2001-10-17 Ring contact for rotatable connection of switch assembly for use in a surgical system Expired - Lifetime CA2359694C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/693,549 US6623500B1 (en) 2000-10-20 2000-10-20 Ring contact for rotatable connection of switch assembly for use in a surgical system
US09/693,549 2000-10-20

Publications (2)

Publication Number Publication Date
CA2359694A1 true CA2359694A1 (en) 2002-04-20
CA2359694C CA2359694C (en) 2010-06-29

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Family Applications (1)

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CA2359694A Expired - Lifetime CA2359694C (en) 2000-10-20 2001-10-17 Ring contact for rotatable connection of switch assembly for use in a surgical system

Country Status (7)

Country Link
US (1) US6623500B1 (en)
EP (1) EP1199040B1 (en)
JP (1) JP4169961B2 (en)
AU (1) AU783944B2 (en)
CA (1) CA2359694C (en)
DE (1) DE60132690T2 (en)
ES (1) ES2299466T3 (en)

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