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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0496775 (2014-09-25) |
| 등록번호 | US-9307987 (2016-04-12) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 45 인용 특허 : 885 |
A surgical instrument with a tissue-clamping end effector, where actuation of the instrument is locked out when the thickness of the tissue clamped in the end effector is not within a specified thickness range. The end effector may comprise a tissue thickness module that senses the thickness of the
A surgical instrument with a tissue-clamping end effector, where actuation of the instrument is locked out when the thickness of the tissue clamped in the end effector is not within a specified thickness range. The end effector may comprise a tissue thickness module that senses the thickness of the tissue clamped in the end effector. The surgical instrument also comprises a control circuit in communication with the tissue thickness module. The control circuit prevents actuation of a working portion of the end effector when the thickness of the tissue clamped in the end effector is not within the specified thickness range.
1. A surgical instrument comprising: an electric motor;a power source connected to the motor for supplying electric power to the electric motor;a tissue-clamping end effector that comprises: a moveable working portion that is moveable upon actuation of the electric motor;a cartridge assembly that co
1. A surgical instrument comprising: an electric motor;a power source connected to the motor for supplying electric power to the electric motor;a tissue-clamping end effector that comprises: a moveable working portion that is moveable upon actuation of the electric motor;a cartridge assembly that comprises a tissue thickness sensor for sensing a thickness of tissue clamped in the end effector; anda control circuit in communication with the tissue thickness sensor, wherein the control circuit automatically prevents actuation of the moveable working portion when the thickness of the tissue clamped in the end effector is not within a specified thickness range based on at least: thickness data from the tissue thickness sensor for the tissue clamped in the end effector; andmodel type data for the cartridge assembly. 2. The surgical instrument of claim 1, wherein the end effector comprises first and second opposing jaw members for clamping the tissue. 3. The surgical instrument of claim 2, wherein the tissue thickness sensor comprises a Hall effect sensor. 4. The surgical instrument of claim 3, wherein the tissue thickness sensor communicates data to the control circuit, the data comprising: data indicative of the thickness of the tissue clamped in the end effector; anddata indicative of the model type of the cartridge assembly. 5. The surgical instrument of claim 4, wherein the control circuit comprises a processing unit programmed to determine whether the tissue clamped in the end effector is within the specified thickness range for the cartridge assembly based on the data communicated to the control circuit by the tissue thickness sensor, including the data indicative of the thickness of the tissue clamped in the end effector and the data indicative of the model type of the cartridge assembly. 6. The surgical instrument of claim 2, wherein the control circuit comprises solid state memory, wherein the solid state memory stores thickness range data for one or more model types for the cartridge assembly. 7. The surgical instrument of claim 6, wherein the processing unit is programmed to determine whether the tissue clamped in the end effector is within the specified thickness range for the cartridge assembly based on the data communicated to the control circuit by the tissue thickness sensor by comparing the data indicative of the thickness of the tissue clamped in the end effector to stored thickness range data for the model type of the cartridge assembly. 8. The surgical instrument of claim 7, wherein: the surgical instrument further comprises a drive shaft that drives the moveable working portion;the electric motor actuates the drive shaft; andthe power source comprises a battery pack that supplies the electric power to the electric motor. 9. The surgical instrument of claim 8, wherein the tissue thickness sensor is in wireless communication with the control circuit. 10. The surgical instrument of claim 9, wherein the tissue thickness sensor is in wireless communication with a visual display unit. 11. The surgical instrument of claim 9, wherein the tissue thickness sensor is in wireless communication with a remote computer system. 12. The surgical instrument of claim 9, wherein: the tissue thickness sensor comprises a first radio module; andthe control circuit comprises a second radio module, wherein the first radio module wirelessly communicates with the second radio module. 13. The surgical instrument of claim 1, wherein the moveable working portion comprises a cutting instrument. 14. A method of operation for a surgical instrument, wherein the surgical instrument comprises: an electric motor;a power source connected to the motor for supplying electric power to the electric motor;a tissue-clamping end effector that comprises: a moveable working portion that is moveable upon actuation of the electric motor;a cartridge assembly that comprises a tissue thickness sensor that senses thickness of tissue clamped in the end effector; anda control circuit in communication with the tissue thickness sensor,the method comprising: clamping tissue in the end effector;sensing, by the tissue thickness sensor, a thickness of the tissue clamped in the end effector;transmitting, by the tissue thickness sensor to the control circuit, data indicative of the thickness of the tissue clamped in the end effector;determining, by the control circuit, whether the thickness of the tissue clamped in the end effector is within a specified range based on a model type for the cartridge assembly; andupon a determination by the control circuit that the thickness of the tissue clamped in the end effector is not within the specified range, preventing, by the control circuit, actuation of the moveable working portion. 15. The method of claim 14, wherein transmitting, by the tissue thickness sensor to the control circuit, the data indicative of the thickness of the tissue clamped in the end effector comprises wirelessly transmitting, by the tissue thickness sensor to the control circuit, the data indicative of the thickness of the tissue clamped in the end effector. 16. The method of claim 14, further comprising, prior to determining, by the control circuit, whether the thickness of the tissue clamped in the end effector is within a specified range based on the model type for the cartridge assembly, transmitting, by the tissue thickness sensor to the control circuit, data, indicative of the model type of the cartridge assembly. 17. The method of claim 16, wherein: transmitting, by the tissue thickness sensor to the control circuit, the data indicative of the thickness of the tissue clamped in the end effector comprises wirelessly transmitting, by the tissue thickness sensor to the control circuit, the data indicative of the thickness of the tissue clamped in the end effector; andtransmitting by the tissue thickness sensor to the control circuit, the data indicative of the model type of the cartridge assembly comprises wirelessly transmitting, by the tissue thickness sensor to the control circuit, the data indicative of the model type of the cartridge assembly. 18. The method of claim 14, wherein: the power source is connected to the motor via at least one switch; andthe step of preventing, upon the determination by the control circuit that the thickness of the tissue clamped in the end effector is not within the specified range, actuation of the moveable working portion comprises controlling, by the control circuit, the at least one switch that connects the power source to the electric motor. 19. The method of claim 14, wherein sensing, by the tissue thickness sensor, the thickness of the tissue clamped in the end effector comprises sensing, by a Hall effect sensor of the tissue thickness sensor, the thickness of the tissue clamped in the end effector. 20. The method of claim 14, wherein determining, by the control circuit, whether the thickness of the tissue clamped in the end effector is within the specified range based on the model type for the cartridge assembly comprises comparing the received data indicative of the thickness of the tissue clamped in the end effector to data stored in a memory unit of the control circuit indicative of the specified thickness range for the model type of the cartridge assembly. 21. A surgical instrument comprising: a tissue-clamping end effector that comprises: a moveable working portion; anda cartridge assembly that comprises a tissue thickness sensor for sensing a thickness of tissue clamped in the end effector; anda control circuit in communication with the tissue thickness sensor, wherein the control circuit automatically prevents actuation of the moveable working portion when the thickness of the tissue clamped in the end effector is not within a specified thickness range based on at least: thickness data from the tissue thickness sensor for the tissue clamped in the end effector; andmodel type data for the cartridge assembly. 22. The surgical instrument of claim 21, wherein the control circuit is in wireless communication with the tissue thickness sensor. 23. The surgical instrument of claim 22, wherein the tissue thickness sensor wirelessly communicates data to the control circuit, the data comprising: data indicative of the thickness of the tissue clamped in the end effector; anddata indicative of the model type of the cartridge assembly. 24. The surgical instrument of claim 23, wherein the tissue thickness sensor comprises a Hall effect sensor. 25. The surgical instrument of claim 23, wherein the control circuit comprises a processing unit programmed to determine whether the tissue clamped in the end effector is within the specified thickness range for the cartridge assembly based on the data communicated to the control circuit by the tissue thickness sensor, including the data indicative of the thickness of the tissue clamped in the end effector and the data indicative of the model type of the cartridge assembly. 26. The surgical instrument of claim 25, wherein the control circuit comprises solid state memory, wherein the solid state memory stores thickness range data for one or more model types for the cartridge assembly. 27. The surgical instrument of claim 26, wherein the processing unit is programmed to determine whether the tissue clamped in the end effector is within the specified thickness range for the cartridge assembly based on the data communicated to the control circuit by the tissue thickness sensor by comparing the data indicative of the thickness of the tissue clamped in the end effector to the stored thickness range data for the model type of the cartridge assembly. 28. The surgical instrument of claim 27, further comprising: a drive shaft that drives the moveable working portion; andan electric motor that actuates the drive shaft; andwherein the control circuit prevents actuation of the electric motor when the thickness of the tissue clamped in the end effector is not within the specified thickness range. 29. The surgical instrument of claim 28, wherein the moveable working portion comprises a cutting instrument. 30. A surgical instrument comprising: a tissue-clamping end effector that comprises: a moveable working portion; anda cartridge assembly that comprises a tissue thickness sensor for sensing a thickness of tissue clamped in the end effector; anda control circuit in wireless communication with the tissue thickness sensor, wherein: the control circuit comprises solid state memory that stores specified acceptable tissue thickness range data by cartridge assembly model type;the control circuit comprises a radio circuit that receives wirelessly from the tissue thickness sensor data indicative of: thickness data for the tissue clamped in the end effector; andmodel type data for the cartridge assembly; andthe control circuit comprises a programmable controller that is programmed to determine whether the thickness of the tissue clamped in the end effector is within the specified acceptable tissue thickness range for the cartridge assembly model type based on at least (i) the stored specified acceptable tissue thickness range data by cartridge assembly model type, (ii) the thickness data for the tissue clamped in the end effector from the tissue thickness sensor, and (iii) the model type data for the cartridge assembly for the tissue thickness sensor; andupon a determination that the tissue clamped in the end effector is not within the specified acceptable thickness range for the cartridge assembly model type, the control circuit prevents actuation of the moveable working portion of the end effector. 31. The surgical instrument of claim 30, further comprising: a drive shaft that drives the moveable working portion; andan electric motor that actuates the drive shaft; andwherein the control circuit prevents actuation of the electric motor when the thickness of the tissue clamped in the end effector is not within the specified accepted thickness range. 32. The surgical instrument of claim 31, further comprising: an electrical power source; anda power switch connecting the electrical power source to the electric motor, wherein the control circuit controls the power switch such that the power switch is in a non-conducting state when the control circuit determines that the thickness of the tissue clamped in the end effector is within the specified acceptable thickness range for the cartridge assembly model type. 33. The surgical instrument of claim 31, wherein the moveable working portion comprises a cutting instrument. 34. The surgical instrument of claim 33, further comprising: a firing trigger;a firing trigger sensor for sensing actuation of the firing trigger by an operator of the surgical instrument, wherein the firing trigger sensor is in communication with the control circuit; anda cutting instrument position sensor for sensing a position of the cutting instrument in the end effector, wherein the cutting instrument position sensor is in communication with the control circuit.
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