Surgical device

• US 8,056,786 B2
• Filed: 05/14/2010
• Issued: 11/15/2011
• Est. Priority Date: 06/14/2002
• Status: Expired due to Term

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Tyco Healthcare Group LP (Medtronic Plc)
• Inventors: Whitman, Michael P., Burbank, John E.
• Primary Examiner(s): Low; Lindsay
• Application Number:
  US12/780,197
• Publication Number:
  US 20100219227A1
• Time in Patent Office: 550 Days
• Field of Search: 2271751-1821, 227/19, 606/219
• US Class Current: 227/175.1
• CPC Class Codes: A61B 17/07207 the staples being applied sequentially
• CPC Class Codes: A61B 17/32 Surgical cutting instruments A61B18/042 takes precedence; suture cutters A61B17/0467; instruments for ligaturing or cutting A61B17/128; instruments for rupturing the amniotic membrane A61B17/4208; specially adapted knives for eye surgery A61F9/0133
• CPC Class Codes: A61B 2017/00039 Electric or electromagnetic phenomena other than conductivity, e.g. capacity, inductivity, Hall effect
• CPC Class Codes: A61B 2017/00323 Cables or rods
• CPC Class Codes: A61B 2017/00398 using powered actuators, e.g. stepper motors, solenoids
• CPC Class Codes: A61B 2017/00734 battery operated
• CPC Class Codes: A61B 2017/07214 Stapler heads
• CPC Class Codes: A61B 2017/2905 flexible
• CPC Class Codes: A61B 2017/2943 Toothed members, e.g. rack and pinion
• CPC Class Codes: A61B 2017/320052 Guides for cutting instruments by marking A61B2090/395

Abstract

A surgical device that includes a first jaw having a distal end and a second jaw having a distal end. The second jaw is disposed in opposed correspondence with the first jaw. The first jaw is pivotably coupled to the second jaw. The surgical device also includes a biasing element, such as a spring, that biases the distal end of the first jaw towards the distal end of the second jaw. The device may also include a first driver disposed in the second jaw and coupled to the first jaw. The first driver is configured to cause separation of the first jaw and the second jaw when the first driver is actuated for opening the jaws and to close the first jaw and the second jaw when the first driver is actuated for closing the jaws. The device may also include at least one of a cutting element and a stapling element disposed within the second jaw, preferably a blade rotatably mounted on a wedge. A second driver is configured to move the cutting element and/or the stapling element proximally from a distal end toward the proximal end of the second jaw to at least one of cut and staple a section of tissue disposed between the first and second jaws. By biasing the distal ends of the first and second jaws towards each other, the surgical device may prevent a section of tissue which is disposed between the first and second jaws from escaping out from between the distal ends of the first and second jaws.

Claims

1. A surgical device, comprising:

a first jaw having a distal end;

a second jaw having a distal end, wherein the second jaw is disposed in opposed correspondence with the first jaw, and wherein the first jaw is pivotably coupled to the second jaw;

at least one of a cutting element and a stapling element disposed within the second jaw;

a driver configured to move at least one of the cutting element and the stapling element proximally from the distal end toward a proximal end of the second jaw to at least one of cut and staple a section of tissue disposed between the first and second jaws; and

a biasing element that biases the distal end of the first jaw towards the distal end of the second jaw; and

a stopping element that limits a distance that a proximal end of the first jaw may be separated from a proximal end of the second jaw by the biasing element;

wherein the first jaw is pivotable relative to the second jaw around the stopping element;

wherein, when closing the jaws, the first jaw is initially pivotable relative to the second jaw around the stopping element and eventually pivotable relative to the second jaw around a point other than the stopping element; and

wherein the point other than the stopping element around which the first jaw is eventually pivotable relative to the second jaw is a point at which the distal end of the first jaw contacts the distal end of the second jaw.

2. The device according to claim 1, wherein the biasing element is a spring.

3. The device according to claim 1, wherein the first jaw and the second jaw have proximal ends, and the biasing element is a spring located between the proximal end of the first jaw and the proximal end of the second jaw.

4. The device according to claim 1, wherein the biasing element causes the distal end of the first jaw to contact the distal end of the second jaw prior to the driver completing the closing of the jaws.

5. The device according to claim 1, wherein the point other than the stopping element around which the first jaw is eventually pivotable relative to the second jaw around is a section of tissue disposed between the first jaw and the second jaw.

6. The device according to claim 1, wherein the first jaw has a first length and the second jaw has a second length, where the second length is greater than the first length.

7. An electro-mechanical surgical system, comprising:

an elongated shaft;

a first axially rotatable drive shaft disposed within the elongated shaft;

a surgical device configured to detachably couple to a distal end of the elongated shaft, wherein the surgical device includes;

a first jaw having a distal end;

a second jaw having a distal end, wherein the second jaw is disposed in opposed correspondence with the first jaw, and wherein the first jaw is pivotably coupled to the second jaw;

at least one of a cutting element and a stapling element disposed within the second jaw;

a first driver configured to move at least one of the cutting element and the stapling element proximally from the distal end toward a proximal end of the second jaw to at least one of cut and staple a section of tissue disposed between the first and second jaws;

a biasing element that biases the distal end of the first jaw towards the distal end of the second jaw; and

a motor system configured to drive the first drive shaft;

wherein the surgical device further comprises a stopping element that limits a distance that a proximal end of the first jaw may be separated from a proximal end of the second jaw by the biasing element;

wherein the first jaw is pivotable relative to the second jaw around the stopping element;

wherein, when closing the jaws, the first jaw is initially pivotable relative to the second jaw around the stopping element and eventually pivotable relative to the second jaw around a point other than the stopping element; and

wherein the point other than the stopping element around which the first jaw is eventually pivotable relative to the second jaw is a point at which the distal end of the first jaw contacts the distal end of the second jaw.

8. The electro-mechanical surgical system according to claim 7, wherein the biasing element causes the distal end of the first jaw to contact the distal end of the second jaw prior to the first driver completing the closing of the jaws.

9. The electro-mechanical surgical system according to claim 7, wherein the point other than the stopping element around which the first jaw is eventually pivotable relative to the second jaw around is a section of tissue disposed between the first jaw and the second jaw.

10. The electro-mechanical surgical system according to claim 7, wherein the first jaw has a first length and the second jaw has a second length, where the second length is greater than the first length.

11. The electro-mechanical surgical system according to claim 7, further including a housing, wherein a proximal end of the elongated shaft extends from the housing.

12. The electro-mechanical surgical system according to claim 11, further including a control system configured to control the motor system.

13. The electro-mechanical surgical system according to claim 12, wherein the control system is disposed within the housing.

14. The electro-mechanical surgical system according to claim 12, further including a remote control unit configured to communicate with the control system to control the motor system via the control system.

15. The electro-mechanical surgical system according to claim 14, wherein the remote control unit includes at least one of a wired remote control unit and a wireless remote control unit.

16. The electro-mechanical surgical system according to claim 12, further including a sensor corresponding to the first drive shaft, the sensor outputting a signal in response to and corresponding to a rotation of the first drive shaft.

17. The electro-mechanical surgical system according to claim 16, wherein the control system is configured to determine, based on the output signal of the sensor, at least one of a rotational position and a direction of rotation of the first drive shaft.

18. The electro-mechanical surgical system according to claim 12, wherein the control system includes a first memory unit.

19. The electro-mechanical surgical system according to claim 18, wherein the first memory unit is configured to store a plurality of operating programs, at least one of the operating programs corresponding to operating parameters for the surgical device attached to the distal end of the elongated shaft.

20. The electro-mechanical surgical system according to claim 19, wherein the control system is configured to identify the surgical device attached to a distal end of the elongated shaft as at least one of the cutting element and the stapling element, wherein the at least one of the cutting element and the stapling element is one of a plurality of types of surgical devices attachable to the distal end of the elongated shaft, the control system being configured to at least one of read and select the operating program from the first memory unit corresponding to the at least one of the cutting element and the stapling element.

21. The electro-mechanical surgical system according to claim 18, wherein the control system is configured to identify the surgical device that is attached to the elongated shaft via a data read from a second memory unit disposed within the surgical device.

22. The electro-mechanical surgical system according to claim 21, further including a data cable disposed within the elongated shaft, the data cable being logically and electrically coupled to the control system and being logically and electrically coupleable to the second memory unit.