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

• US 6,716,233 B1
• Filed: 02/22/2000
• Issued: 04/06/2004
• Est. Priority Date: 06/02/1999
• Status: Expired due to Term

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Power Medical Interventions, Inc. (Medtronic Plc)
• Inventors: Whitman, Michael P.
• Primary Examiner(s): Robert, Eduardo C.
• Application Number:
  US09/510,927
• Time in Patent Office: 1,505 Days
• Field of Search: 606/1, 606/219, 606/139, 606/142, 606/167, 606/171, 606/75, 227/176.1, 227/179
• 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 activateable sensor assemblies in the surgical instrument attachment.

Claims

1. A medical tool, comprising:

an electromechanical driver;

an application element driven by said electromechanical driver and configured to interact with a section of tissue;

a sensor assembly capable of sensing and transmitting data corresponding to at least one of a condition of the section of tissue and an interaction between the section of tissue and the application element; and

a processor element capable of receiving said data and controlling said electromechanical driver in correspondence with said data.

2. The medical tool as set forth in claim 1, wherein said sensor said assembly is activated upon, and is capable of, receiving an activation signal transmitted by said processor element.

3. The medical tool as set forth in claim 1, further comprising an alert element coupled to said processor element and capable of communicating at least one of an aspect of the data received by said processor element and an aspect of the processor element'"'"'s control of the electromechanical driver.

4. The medical tool as set forth in claim 1, wherein said sensor assembly comprises a tissue proximity detector.

5. The medical tool as set forth in claim 1, wherein, said processor element is capable of preventing activation of said electromechanical driver.

6. The medical tool as set forth in claim 1, wherein the application element includes an anvil and a stapling arrangement configured to be driven by the electromechanical driver.

7. The medical tool according to claim 6, wherein the electromechanical driver is housed in the processor.

8. The medical tool according to claim 6, wherein the anvil and stapling arrangement is a circular stapler.

9. The medical tool of claim 6, wherein the sensor is configured to sense a position of the section of tissue relative to the medical tool.

10. The medical tool of claim 9, wherein the sensor is a tissue proximity detector, the tissue proximity detector including at least one light emitting element and at least one light detecting element, and wherein the processor, based on data received from the at least one light detecting element, is configured to prevent the electromechanical driver from driving the anvil and stapling arrangement when the at least one light detecting element detects a predetermined amount of light emitted from the at least one light emitting element.

11. The medical tool of claim 10, wherein the anvil and stapling arrangement includes an anvil and a stapling mechanism having a housing, and wherein the processor is configured to prevent the electromechanical driver from firing staples via the staple driving mechanism when, due to at least a partial absence of the section of tissue between the anvil the housing of the staple driving mechanism, the at least one light detecting element detects a predetermined amount of light emitted from the at least one light emitting element.

12. The medical tool of claim 6, wherein the sensor is configured to sense at least one of a flow or a lack of flow of blood in the section of tissue.

13. The medical tool of claim 6, wherein the sensor is a pulse oximeter, the pulse oximeter including at least one light emitting element and at least one light detecting element, and wherein the processor, based on data received from the at least one light detecting element, is configured to prevent the electromechanical driver from driving the anvil and stapling arrangement when the at least one light detecting element at least one of detects or fails to detect a predetermined amount of light emitted from the at least one light emitting element.

14. The medical tool of claim 13, wherein the anvil and stapling arrangement includes an anvil and a stapling mechanism having a housing, and wherein the processor is configured to prevent the electromechanical driver from firing staples via the staple driving mechanism when, due to at least a partial absence of blood flow through the section of tissue between the anvil and the housing of the staple driving mechanism, the at least one light detecting element at least one of detects or fails to detect a predetermined absorption of light emitted from the at least one light emitting element.

15. A medical tool comprising:

an electromechanical driver, wherein said electromechanical driver comprises a torque generating mechanism;

a sensor assembly capable of sensing and transmitting data regarding at least one of a feature of the environment surrounding at least a portion of said tool and a feature of the tool;

a processor element capable of receiving said data and controlling said electromechanical driver in correspondence with said data; and

an application element driven by said electromechanical driver, wherein said application element is a selectively movable element which is in mechanical communication with said torque generating mechanism.

16. A medical tool comprising:

an electromechanical driver;

a sensor assembly capable of sensing and transmitting data regarding at least one of a feature of the environment surrounding at least a portion of said tool and a feature of the tool;

a processor element capable of receiving said data and controlling said electromechanical driver in correspondence with said data; and

an application element driven by said electromechanical driver wherein at least one of said electromechanical driver, said sensor assembly, said processor element, and said application element is housed in an attachment portion, and the remainder of said electromechanical driver, said sensor assembly, said processor element, and said application element are housed in a main portion to which said attachment portion can be attached and detached, wherein when said attachment portion is attached to said main portion, said transmission of data, said receipt of data, said control, and said driving is possible.

17. The medical tool as set forth in claim 16, wherein said electromechanical driver and said processor element are housed in said main portion, and said sensor assembly and said application element are housed in said attachment portion.

18. A medical tool comprising:

an electromechanical driver;

a sensor assembly capable of sensing and transmitting data regarding at least one of a feature of the environment surrounding at least a portion of said tool and a feature of the tool, wherein said sensor assembly comprises a pulse oximeter;

a processor element capable of receiving said data and controlling said electromechanical driver in correspondence with said data; and

an application element driven by said electromechanical driver.