최소 단어 이상 선택하여야 합니다.
최대 10 단어까지만 선택 가능합니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
DataON 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Edison 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0235972 (2008-09-23) |
등록번호 | US-9050083 (2015-06-09) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 313 인용 특허 : 1252 |
A surgical cutting and fastening instrument that is motorized. The instrument comprises in one embodiment a charge accumulator device, separate from a battery, that provides additional power to the motor under certain conditions. In addition, the motor may comprise multiple windings.
1. A surgical instrument comprising: an end effector comprising a moveable cutting instrument;a shaft connected at its distal end to the end effector; anda handle connected to a proximate end of the shaft, wherein the handle comprises: an electric motor for actuating the cutting instrument; anda mot
1. A surgical instrument comprising: an end effector comprising a moveable cutting instrument;a shaft connected at its distal end to the end effector; anda handle connected to a proximate end of the shaft, wherein the handle comprises: an electric motor for actuating the cutting instrument; anda motor control circuit for controlling the motor, wherein the motor control circuit comprises: a power source connected to the motor for electrically powering the motor;a charge accumulator device; anda switching circuit connected to the power source and the charge accumulator device, wherein the switching circuit comprises: at least a first switch for temporarily connecting the charge accumulator device to the power source to charge the charge accumulator device; andat least a second switch for selectively connecting the charge accumulator device in series with the power source to provide additional power to the motor, wherein when the first switch is charging the charge accumulator device, the first switch is closed and the second switch is open. 2. The surgical instrument of claim 1, wherein the charge accumulator device comprises a capacitor. 3. The surgical instrument of claim 2, wherein the charge accumulator device comprises an ultracapacitor. 4. The surgical instrument of claim 1, wherein the power source comprises a plurality of series connected battery cells. 5. The surgical instrument of claim 4, further comprising a power source selection switch connected to the power source for connecting, when in a first state, all of the power sources to the motor, and, when in a second state, a subset of the power sources to the motor. 6. The surgical instrument of claim 1, wherein the end effector comprises a circular-cutting end effector. 7. The surgical instrument of claim 1, wherein the end effector comprises a linear-cutting end effector. 8. The surgical instrument of claim 1, wherein the motor control circuit further comprises a current control circuit, connected to the power source, for varying the current supplied to the motor from the power source, such that the motor has at least: a first, low power operational mode for a first portion of a cutting stroke cycle of the cutting instrument; anda second, high power operational mode for a second portion the cutting stroke cycle of the cutting instrument. 9. The surgical instrument of claim 1, wherein: the motor comprises at least two windings; andthe motor control circuit is for selectively connecting the at least two windings in series or in parallel. 10. The surgical instrument of claim 1, wherein when the second switch connects the charge accumulator device in series with the power source, the first switch is open and the second switch is closed. 11. The surgical instrument of claim 10, wherein the switching circuit further comprises a third switch for selectively bypassing the charge accumulator device, and wherein the third switch is closed when selectively bypassing the charge accumulator device and open when the second switch connects the charge accumulator device in series with the power source. 12. A surgical instrument comprising: an end effector comprising a moveable cutting instrument;a shaft connected at its distal end to the end effector; anda handle connected to a proximate end of the shaft, wherein the handle comprises: an electric motor for actuating the cutting instrument, wherein the motor comprises at least two windings; anda motor control circuit connected to the motor that selectively connects the at least two motor windings in series during a first time period and connects the at least two motor windings in parallel during a second time period. 13. The surgical instrument of claim 12, wherein the handle further comprises a power source connected to the motor. 14. The surgical instrument of claim 13, wherein the power source comprises a plurality of series-connected power sources. 15. The surgical instrument of claim 14, further comprising a power source selection switch connected to the power sources for connecting, when in a first state, all of the power sources to the motor, and, when in a second state, a subset of the power sources to the motor. 16. A surgical instrument comprising: an end effector comprising a moveable cutting instrument;a shaft connected at its distal end to the end effector; anda handle connected to a proximate end of the shaft, wherein the handle comprises: an electric motor for actuating the cutting instrument;a removable battery pack for powering the motor, wherein the battery pack comprises a plurality of battery cells, and wherein the plurality of battery cells comprises a first plurality of series-connected battery cells and a second plurality of series-connected battery cells; anda battery cell connector, separate from the battery pack, that connects in series the first plurality of series-connected battery cells to the second plurality of series-connected battery cells when the battery pack is installed in the surgical instrument, wherein the first plurality of series-connected battery cells is not connected in series with the second plurality of series-connected battery cells in the removable battery pack until connected in series by the battery cell connector upon installation of the battery pack in the surgical instrument. 17. The surgical instrument of claim 16, wherein the battery pack comprises a third plurality of series-connected battery cells, wherein the battery cell connector connects in series the first, second, and third plurality of series-connected battery cells when the battery pack is installed in the surgical instrument, and wherein the third plurality of series-connected battery cells is not connected in series with the first and second plurality of series-connected battery cells in the removable battery pack until connected in series by the battery cell connector upon installation of the battery pack in the surgical instrument. 18. The surgical instrument of claim 16, wherein the first plurality of series-connected battery cells comprises three series-connected Lithium primary battery cells and the second plurality of series-connected battery cells comprises three series-connected Lithium primary battery cells. 19. The surgical instrument of claim 16, wherein the handle further comprises: a charge accumulator device; anda switching circuit connected to the battery pack and the charge accumulator device, wherein the switching circuit comprises: at least a first switch for temporarily connecting the charge accumulator device to the battery pack to charge the charge accumulator device; andat least a second switch for selectively connecting the charge accumulator device in series with the battery pack to provide additional power to the motor.
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