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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0036021 (2001-10-29) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 대리인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 498 인용 특허 : 22 |
A surgical tool system ( 30 ) with a powered surgical handpiece ( 32 ). A removable handswitch ( 39 ) is attached to the handpiece. The handswitch includes a slip ring ( 192 ) that removably holds the handswitch to the handpiece. A lever arm ( 212 ) is pivotally attached to the slip ring. A magnet (
A surgical tool system ( 30 ) with a powered surgical handpiece ( 32 ). A removable handswitch ( 39 ) is attached to the handpiece. The handswitch includes a slip ring ( 192 ) that removably holds the handswitch to the handpiece. A lever arm ( 212 ) is pivotally attached to the slip ring. A magnet ( 190 ) is fitted in the lever arm. The angle of the lever arm is set by the surgeon to indicate the on/off state and operating speed of the handpiece. Internal to the handpiece is a sensor ( 94 ) that generates a signal based on the relative proximity of the magnet. The sensor signal is thus employed as the control signal for regulating the operation of the handpiece. Thus a surgeon can selectively use the handpiece with or without the mounted control switch.
1. A surgical handpiece, said surgical handpiece including:a housing;an electrical power consuming unit located within said housing, said power consuming unit being configured to receive energization signals;a surgical attachment designed for application to a surgical site that is removably secured
1. A surgical handpiece, said surgical handpiece including:a housing;an electrical power consuming unit located within said housing, said power consuming unit being configured to receive energization signals;a surgical attachment designed for application to a surgical site that is removably secured to said housing and releasably attached to said power consuming unit for actuation by said power consuming unit;a removable switch assembly, said switch assembly including a collar fitted over said housing and shaped to be releasably attached to said housing without a supplemental fastener and a switch lever movably secured to said collar; anda sensor disposed in said housing, said sensor configured to generate a sensor signal representative of the position of said switch lever of said switch assembly relative to said sensor. 2. The surgical handpiece of claim 1, wherein said housing has a front end and a rear end opposite the front end; and said collar of said switch assembly is formed with a tab, said tab positioned to prevent said collar from being fitted over the front end of said housing. 3. The surgical handpiece of claim 1, wherein said switch lever is pivotally mounted to said collar so that one end of said switch lever moves towards and away from said housing. 4. The surgical handpiece of claim 1, wherein: a magnet is disposed in said switch lever of said switch assembly and said sensor is configured to monitor magnetic fields produced by said magnet. 5. The surgical handpiece of claim 1, wherein said electrical power consuming unit is a motor. 6. The surgical handpiece of claim 1, wherein:said switch assembly includes a sensed member that is separate from said switch lever and is connected to said switch lever so that movement of said switch lever results in movement of said sensed member; andsaid sensor is configured to monitor the displacement of said sensed member and to generate the sensor signal based on the position of said sensed member relative to said sensor. 7. The surgical handpiece of claim 6, said sensed member is movably mounted to said switch lever. 8. The surgical handpiece of claim 6, wherein:said sensed member is attached to said switch lever to have first and second positions on said switch lever; andsaid sensor is disposed in said housing and said sensed member is mounted to said switch lever so that:when said sensed member is in the first position on said switch lever, said sensed member is positioned so that said sensor is able to monitor the position of said sensed member; andwhen said sensed member is in the second position on said switch lever, said sensed member is positioned so that said sensor is not able to monitor the position of said sensed member. 9. The surgical handpiece of claim 1, further including an extender moveably mounted to said switch lever, said extender mounted to said switch lever so as to be able to extend forward from and retract into said switch lever. 10. The surgical handpiece of claim 1, wherein said sensor generates an analog sensor signal. 11. The surgical handpiece of claim 1, wherein said housing is shaped so as to not have any surface features for holding said collar to said housing. 12. The surgical handpiece of claim 1, wherein said collar includes an a tab, said tab being positioned to seat in an alignment notch associated with said housing so that, upon the seating of said tab in the notch, said lever is in a specific orientation relative to said sensor. 13. A surgical handpiece, said handpiece comprising:a body;a power generating unit disposed in said body;an attachment connected to said body and coupled to said power generating unit to apply the power generated by said power generating unit to a surgical site;a sensor mounted in said body, said sensor configured to monitor the strength of an electromagnetic field in the vicinity of said sensor and to output a variable sensor signal as a function of the strength of said electromagnetic field;a removable switch assembly, said removable switch assembly including:a collar attached to said body, said collar having at least one element shaped to at least partially a surround said body so as to removably hold said collar to said body;a switch element moveably attached to said collar; anda sensed member moveably mounted to said switch element so as to move relative to said body upon movement of said switch element or movement of said sensed member on said switch element, said sensed member being formed from material that, when moved, varies the electromagnetic field sensed by said sensor. 14. The surgical handpiece of claim 13, wherein said switch element is pivotally attached to said collar so as to have an end that moves toward and away from said body. 15. The surgical handpiece of claim 13, wherein:said sensed member is a magnet and said magnet is connected to said switch element so as to move towards or away from said sensor upon movement of said switch element; andsaid sensor is configured to monitor the strength of a magnetic field and to output the sensor signal as a function of the strength of the magnetic field. 16. The surgical handpiece of claim 13, wherein said power generating unit is a motor having a rotating shaft. 17. The surgical handpiece of claim 13, wherein said power generating unit consumes electric power and outputs one selected from the group consisting of:mechanical energy; ultrasonic energy; and light energy. 18. The surgical handpiece of claim 13, wherein said attachment is removably secured to said body and removably connected to said power generating unit. 19. The surgical handpiece of claim 13, wherein:said sensed member is attached to said switch element to have first and second positions on said switch element; andsaid sensor is mounted in said body and said sensed member is mounted to said switch element so that:when said sensed member is in the first position on said switch element, said sensed member is positioned so that said sensed member varies the electromagnetic field sensed by said sensor; andwhen said sensed member is in the second position of said switch element, said sensed member is positioned so that said sensed member does not vary the electromagnetic field sensed by said sensor. 20. The surgical handpiece of claim 13, wherein said sensor generates an analog sensor signal. 21. The surgical handpiece of claim 13, wherein said body is shaped so as to not have any surface features for holding said collar to said body. 22. A surgical handpiece, said handpiece including:a housing;a motor disposed in said housing, said motor having a rotating shaft;a coupling assembly attached to said housing for releasably securing an attachment to said housing and connecting the attachment to said shaft;a magnetic field sensor mounted in said housing, said sensor configured to generate a variable output signal as a function of the strength of a sensed magnetic field; anda removable switch assembly comprising:a collar mounted to said housing, said collar having at least one member shaped to at least partially surround said housing so as to removably hold said at least one member to said housing;a switch element moveably attached to said collar;a magnet moveably mounted to said switch element to move with the movement of said switch element, said magnet being positioned adjacent said sensor so that movement of said switch element or movement of said magnet on said switch element results in movement of said magnet towards or away from said sensor. 23. The surgical handpiece of claim 22, wherein said sensor is a Hall sensor. 24. The surgical handpiece of claim 22, wherein said switch element is pivotally attached to said collar so as to have an end that moves towards and away from said housing. 25. The surgical handpiece of claim 22, wherein:said magnet is attached to said switch element to have first and second positions on said switch element; andsaid sensor is mounted in said housing and said magnet is mounted to s aid switch element so that:when said magnet is in the first position on said switch element, said magnet is positioned so that said sensor is able to monitor the displacement of said magnet; andwhen said magnet is in the second position on said switch element, said magnet is positioned so that said sensor is not able to monitor the displacement of said magnet. 26. The surgical handpiece of claim 22, further including an extender that is retractably mounted to said switch element. 27. The surgical handpiece of claim 22, wherein said sensor generates an analog sensor signal. 28. The surgical handpiece of claim 22, wherein said housing is shaped so as to not have any surface features for holding said collar to said housing. 29. A surgical handpiece, said handpiece comprising:a body;a power generating unit disposed in said body;an attachment connected to said body and coupled to said power generating unit to apply power generated by said power generating unit to a surgical site;a static member that at least partially surrounds said body so as to be releasably mounted to said body without a supplemental fastener;a switch element moveably attached to said static member, said switch element including a sensed member; anda sensor mounted in said body, said sensor configured to monitor the proximity of said sensed member to said sensor and to output a variable sensor signal as a function of the proximity of said sensed member. 30. The surgical handpiece of claim 29, wherein:said sensor monitors an electromagnetic field in the vicinity of said body and generates the sensor signal as a function of the characteristics of the monitored electromagnetic field; andsaid sensed member is formed of material that affects the characteristics of the electromagnetic field monitored by said sensor. 31. The surgical handpiece of claim 29, wherein:said sensed member is a magnet; andsaid sensor monitors the intensity of the magnetic field produced by said magnet and generates the sensor signal as a function of the intensity of the magnetic field adjacent said sensor. 32. The surgical handpiece of claim 29, wherein said switch element is a lever pivotally attached to said static member. 33. The surgical handpiece of claim 29, wherein said sensed member is moveably attached to said switch element to have first and second positions on said switch element. 34. The surgical handpiece of claim 29, wherein said power generating unit consumes electric power and outputs one selected from the group consisting of:mechanical energy; ultrasonic energy; and light energy. 35. The surgical handpiece of claim 29, wherein said surgical attachment is removably secured to said body and removably connected to said power generating unit. 36. The surgical handpiece of claim 29, wherein:said sensed member is attached to said switch element to have first and second positions on said switch element; andsaid sensor is mounted in said body and said sensed member is mounted to said switch element so that:when said sensed member is in the first position on said switch element, said sensed member is positioned so that said sensor is able to monitor the proximity of said sensed member; andwhen said sensed member is in the second position on said switch element, said sensed member is positioned so that said sensor is not able to monitor the proximity of said sensed member. 37. The surgical handpiece of claim 29, wherein said sensor generates an analog sensor signal. 38. The surgical handpiece of claim 29, wherein said body is shaped so as to not have any surface features for holding said static member to said body. 39. The surgical handpiece of claim 29, wherein said collar includes an a tab, said tab being positioned to seat in an alignment notch associated with said body so that, upon the seating of said tab in the notch, said switch element is in a specific orientation relative to said sensor. 40. A surgical handpiece, said surgical handpiece including:a housing;an electrical power consuming unit located within said housing, said power consuming unit being configured to receive energization signals;a coupling assembly for releasably holding a surgical attachment to said housing and for coupling the surgical attachment to said power consuming unit for actuation by said power consuming unit;a static member that is disposed over said housing and that is shaped to at least partially surround said housing so as to be releasably secured to said housing without a supplemental fastener;a lever moveably attached to said static member, said lever having a sensed element that moves with the movement of said lever; anda sensor disposed in said housing for monitoring the position of said sensed element, said sensor configured to generate a variable sensor signal as a function of the proximity of said sensed element to said sensor. 41. The surgical handpiece of claim 40, wherein:said sensor monitors an electromagnetic field in the vicinity of said housing and generates the sensor signal as a function of the characteristics of the monitored electromagnetic field; andsaid sensed element is formed of material that affects the characteristics of the electromagnetic field monitored by said sensor. 42. The surgical handpiece of claim 40, wherein:said sensed element is a magnet; andsaid sensor monitors the intensity of the magnetic field produced by said magnet and generates the sensor signal as a function of the intensity of the magnetic field adjacent said sensor. 43. The surgical handpiece of claim 40, wherein said power generating unit consumes electric power and outputs one selected from the group consisting of:mechanical energy; ultrasonic energy; and light energy. 44. The surgical handpiece of claim 40, wherein:said sensed element is attached to said lever to have first and second positions on said lever; andsaid sensor is mounted in said housing and said sensed element is attached to said lever so that:when said sensed element is in the first position on said lever, said sensed element is positioned so that said sensor is able to monitor the proximity of said sensed element; andwhen said sensed element is in the second position of said lever, said sensed element is positioned so that said sensor is not able to monitor the proximity of said sensed element. 45. The surgical handpiece of claim 40, wherein said sensor generates an analog sensor signal. 46. The surgical handpiece of claim 40, wherein said housing is shaped so as to not have any surface features for holding said static member to said housing. 47. The surgical handpiece of claim 40, wherein said static member includes a tab that is directed towards said housing, said tab being positioned to seat in an alignment notch associated with said housing so that, upon the seating of said tab in the notch, said lever is in a specific orientation relative to said sensor.
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