Electromechanical driver and remote surgical instrument attachment having computer assisted control capabilities

• US 8,016,858 B2
• Filed: 07/19/2010
• Issued: 09/13/2011
• Est. Priority Date: 06/02/1999
• Status: Expired due to Fees

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Tyco Healthcare Group LP (Medtronic Plc)
• Inventors: Whitman, Michael P.
• Primary Examiner(s): Philogene; Pedro
• Application Number:
  US12/838,706
• Publication Number:
  US 20100276471A1
• Time in Patent Office: 421 Days
• Field of Search: 606/1, 606/219, 606/151, 606/139, 606/142, 606/167, 606/171, 606/75, 606/170, 606/145, 606/148, 606/10, 606/11, 606/13, 227/175.1, 227/176.1, 227/180.1, 227/179, 227/19, 227/179.1, 600/117, 600/118, 128/898
• US Class Current: 606/219
• CPC Class Codes: A61B 17/068 Surgical staplers , e.g. containing multiple staples or clampsstaplers containing only one staple A61B17/10; magazines or containers for staples A61B17/105; for performing anastomosis A61B17/115; staplers in general B25C5/00
• CPC Class Codes: A61B 17/07207 the staples being applied sequentially
• CPC Class Codes: A61B 17/1114 of the digestive tract, e.g. bowels or oesophagus
• CPC Class Codes: A61B 17/115 Staplers for performing anastomosis in a single operation
• CPC Class Codes: A61B 17/1152 applying the staples on the outside of the lumen
• CPC Class Codes: A61B 17/1155 Circular staplers comprising a plurality of staples
• CPC Class Codes: A61B 2017/00022 Sensing or detecting at the treatment site
• CPC Class Codes: A61B 2017/00039 Electric or electromagnetic phenomena other than conductivity, e.g. capacity, inductivity, Hall effect
• CPC Class Codes: A61B 2017/00292 mounted on or guided by flexible, e.g. catheter-like, means
• CPC Class Codes: A61B 2017/00367 Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like
• CPC Class Codes: A61B 2017/00398 using powered actuators, e.g. stepper motors, solenoids
• CPC Class Codes: A61B 2017/00464 for use with different instruments
• CPC Class Codes: A61B 2017/00473 Distal part, e.g. tip or head A61B2017/00464 takes precedence
• CPC Class Codes: A61B 2017/00734 battery operated
• CPC Class Codes: A61B 2017/07214 Stapler heads
• CPC Class Codes: A61B 2017/07278 characterised by its sled or its staple holder
• CPC Class Codes: A61B 2017/2905 flexible
• CPC Class Codes: A61B 5/1459 invasive, e.g. introduced into the body by a catheter A61B5/1464 takes precedence
• CPC Class Codes: A61B 5/6885 Monitoring or controlling sensor contact pressure

Abstract

A medical tool comprising an electromechanical driver and a surgical instrument attachment for use in invasive surgery, including a handle coupled to a flexible sheath which is in turn coupled to a surgical attachment. The handle of the driver includes the electromechanical driver and at least one processor element which controls the actions of the electromechanical driver, and therefore the application elements of the surgical attachment, based on information relayed between the processor element and remotely activatable sensor assemblies in the surgical instrument attachment.

Claims

1. A method of manipulating a surgical instrument attachment, the method comprising the steps of:

providing a surgical instrument attachment comprising;

an anvil portion configured to selectively engage a housing;

a generally cylindrical housing selectively engageable with the anvil portion; and

a generally cylindrical unitary blade and staple driver;

providing an electromechanical driver configured to selectively engage the surgical instrument attachment; and

providing at least one processor for performing the steps of;

transmitting a first set of information to the surgical instrument attachment;

processing the first set of information via at least one sensor positioned on the surgical instrument attachment to generate a second set of information; and

transmitting the second set of information from the surgical instrument attachment to the electromechanical driver.

2. The method according to claim 1, further comprising the step of remotely manipulating the surgical instrument attachment.

3. The method according to claim 1, further comprising the step of wirelessly transmitting the first and second sets of information.

4. The method according to claim 1, further comprising the step of storing the first and second sets of information in an information storage unit.

5. The method according to claim 1, further comprising the step of indicating activation/deactivation of one or more functions of the surgical instrument attachment by an indicating unit.

6. The method according to claim 1, further comprising the step of displaying the first and second sets of information on a display.

7. The method according to claim 6, wherein the display is a remote display panel.

8. The method according to claim 6, wherein the display is a display panel positioned on a handle portion of the electromechanical driver.

9. The method according to claim 1, wherein the processing step further comprises:

querying a memory unit of the surgical instrument attachment via the at least one processor;

transmitting identification information from the memory unit to the electromechanical driver;

displaying the identification information on a display;

determining if the surgical instrument attachment is compatible with the electromechanical driver;

activating the surgical instrument attachment based on the compatibility determination;

transmitting an activation signal to the at least one sensor;

determining a blood flow level through a target tissue positioned against a tissue contact surface of the electromechanical driver; and

activating the electromechanical driver when the blood flow level in the target tissue is within an appropriate range to perform an operation on the target tissue.

10. The method according to claim 1, further comprising the step of coupling the surgical instrument attachment to a torque translating member selectively movable via a torque generating element.

11. The method according to claim 10, wherein the first and second sets of information establish an amount of torque to be generated by the torque generating element.

12. The method according to claim 1, wherein the at least one sensor includes at least one of a pulse oximeter sensor and a tissue proximity sensor.

13. The method according to claim 1, wherein the surgical instrument attachment is at least one of an anastomosing attachment, a resecting attachment and a stapling attachment.

14. A method of manipulating a surgical instrument attachment, the method comprising the steps of:

providing a surgical instrument attachment comprising;

an anvil portion configured to selectively engage a housing;

a generally cylindrical housing selectively engageable with the anvil portion; and

a generally cylindrical unitary blade and staple driver;

providing an electromechanical driver configured to selectively engage the surgical instrument attachment; and

providing at least one processor for performing the steps of;

querying a memory unit of the surgical instrument attachment;

transmitting identification information from the memory unit to the electromechanical driver;

displaying the identification information on a display;

determining if the surgical instrument attachment is compatible with the electromechanical driver;

activating the surgical instrument attachment based on the compatibility determination;

transmitting an activation signal to at least one sensor;

determining a blood flow level through a target tissue positioned against a tissue contact surface of the electromechanical driver; and

activating the electromechanical driver when the blood flow level in the target tissue is within an appropriate range to perform an operation on the target tissue.

15. The method according to claim 14, wherein the identification information includes at least one of an identity and a status of the surgical instrument attachment.

16. The method according to claim 14, wherein the display is a remote display panel.

17. The method according to claim 14, wherein the display is a display panel positioned on the electromechanical driver.

18. The method according to claim 14, wherein the activating of the surgical instrument attachment step further comprises the step of opening the surgical instrument attachment.

19. The method according to claim 14, wherein the at least one sensor is one of a tissue proximity sensor and a pulse oximeter sensor.

20. The method according to claim 14, further comprising the step of coupling the surgical instrument attachment to a torque translating member selectively movable via a torque generating element.

21. The method according to claim 20, wherein the identification information establishes an amount of torque to be generated by the torque generating element.

22. A method of manipulating a surgical instrument attachment, the method comprising the steps of:

coupling the surgical instrument attachment to a distal end of a flexible shaft connected to an electromechanical driver, the electromechanical driver including at least one staple driver;

querying a memory element of the surgical instrument attachment via at least one processor;

requesting identification information from the surgical instrument attachment;

transmitting and outputting the information requested to a display; and

establishing a number of staple drivers, of the electromechanical driver, to be activated based on the information requested from the surgical instrument attachment;

wherein the information requested includes at least one of size, status, and functionality information.

23. The method according to claim 22, further comprising the step of triggering the electromechanical driver to open a surgical tool connected thereto based on acceptability of the information requested from the surgical instrument attachment.

24. The method according to claim 23, further comprising the step of activating a staple driver based on blood profusion sensed through tissue compressed in the surgical tool.

25. The method according to claim 24, further comprising the step of detecting and measuring the blood profusion by at least one of a pulse oximeter sensor and a tissue proximity sensor.

26. The method according to claim 22, further comprising the step of coupling the surgical instrument attachment to a torque translating member selectively movable via a torque generating element.

27. The method according to claim 26, further comprising the step of establishing an amount of torque to be generated by the torque generating element via the identification information.

28. A method of manipulating a medical tool, the method comprising the steps of:

providing a medical tool comprising;

a first medical tool portion configured to selectively engage a housing;

a tissue reservoir portion selectively engageable with the first medical tool portion; and

a sensor assembly;

providing an electromechanical driver configured to selectively engage the medical tool;

sensing and transmitting data, via a sensor assembly, corresponding to at least one of a condition of the section of tissue and an interaction between the section of tissue and the medical tool;

receiving the data in a processor; and

controlling the medical tool, via the processor, in correspondence with the data received.

29. The method according to claim 28, further comprising the step of the processor receiving an activation signal via the sensor assembly.

30. The method according to claim 28, further comprising the step of providing an alert element coupled to the processor and capable of communicating at least one of an aspect of the data received by the processor and an aspect of the control of the processor of the electromechanical driver.

31. The method according to claim 28, wherein the sensor assembly includes a tissue proximity detector.

32. The method according to claim 28, further comprising the step of preventing activation of the electromechanical driver via the processor.

33. The method according to claim 28, further comprising the step of operating the surgical tool via the electromechanical driver, the surgical tool including an anvil and a stapling arrangement.

34. The method according to claim 33, wherein the surgical tool is a circular stapler.

35. The method according to claim 28, wherein the electromechanical driver includes a torque generating mechanism.

36. The method according to claim 35, wherein the torque generating mechanism includes at least a torque translating member selectively movable via a torque generating element.

37. The method according to claim 36, wherein the data received establishes an amount of torque to be generated by the torque generating element.