Surgical device

• US 8,518,074 B2
• Filed: 08/25/2011
• Issued: 08/27/2013
• Est. Priority Date: 01/08/2002
• Status: Expired due to Term

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Whitman, Michael P., Burbank, John E.
• Primary Examiner(s): SEVERSON, RYAN J
• Application Number:
  US13/217,611
• Publication Number:
  US 20120006880A1
• Time in Patent Office: 733 Days
• Field of Search: 606/139, 606205-208, 606/219, 2271751-1821
• US Class Current: 606/205
• 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 17/072 for applying a row of staples in a single action , e.g. the staples being applied simultaneously
• CPC Class Codes: A61B 17/285 combined with cutting implements
• CPC Class Codes: A61B 2017/003 Steerable
• 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 with hole for different instruments A61B2017/22072
• CPC Class Codes: A61B 2017/00473 Distal part, e.g. tip or head A61B2017/00464 takes precedence
• CPC Class Codes: A61B 2017/00477 Coupling A61B2017/0046 takes precedence
• CPC Class Codes: A61B 2017/07214 Stapler heads
• CPC Class Codes: A61B 2017/320052 Guides for cutting instruments by marking A61B2090/395
• CPC Class Codes: A61B 34/30 Surgical robots
• CPC Class Codes: A61B 34/70 Manipulators specially adapted for use in surgery
• CPC Class Codes: A61B 34/71 Manipulators operated by drive cable mechanisms

Abstract

A surgical device includes a first jaw and a second jaw in opposed correspondence with the first jaw. A first driver is configured to cause relative movement of the first jaw and the second jaw in a plane. The first driver is configured to engage a drive shaft rotatable about a rotation axis arranged in non-parallel, e.g., perpendicular, correspondence to the plane. The device may also include a surgical member, e.g., a cutting and stapling element, disposed within the first jaw. A second driver is configured to cause relative movement of the surgical member in a direction parallel to the plane. The second driver is configured to engage a drive shaft rotatable about a rotation axis arranged in non-parallel correspondence to the plane.

Claims

1. A surgical device, comprising:

a first jaw having a first tissue contacting surface, the tissue contacting surface generally defining a first plane;

a second jaw in opposed relation to the first jaw and having a second tissue contact surface, the second tissue contacting surface generally defining a second plane, the first jaw and the second jaw being movable relative to each other;

a cutting element mounted in the first jaw;

a gear housing mounted relative to the first jaw, the gear housing including at least one drive socket, the at least one drive socket coupled to at least one corresponding driver; and

an electromechanical driver component configured to cooperate with the gear housing via the at least one drive socket coupled to the at least one corresponding driver;

wherein the at least one drive socket is coupled to a motor via a rotatable drive shaft, the at least one corresponding driver being configured to actuate the cutting element in a direction orthogonal to the tissue contacting surface of at least one of the first jaw and the second jaw.

2. The surgical device according to claim 1, wherein the first jaw further includes a stapling element.

3. The surgical device according to claim 2, wherein the cutting element and the stapling element are mounted on a thrust plate within the first jaw.

4. The surgical device according to claim 1, further comprising a second rotatable drive shaft that is rotated in a first direction to effect extending of the first and second jaws and rotated in a second direction opposite to the first direction to effect closing of the first and second jaws.

5. The surgical device according to claim 1, wherein the gear housing includes at least two spur gears, a worm and a worm gear in turning and gearing relationship with each other, and an externally-threaded screw fixedly connected at one end to the worm gear and in engagement with an internally-threaded bore of the second jaw, the rotation of the gears thereby causing relative movement of the first jaw and the second jaw.

6. The surgical device according to claim 1, wherein the gear housing mounted to the first jaw cooperates with the at least one driver, the gear housing having two spur gears and a worm in turning and gearing relationship with each other and with a pair of additional worm gears, each of the pair of additional worm gears having a centrally-disposed, internally-threaded bore in engagement with one of a pair of externally-threaded screws fixedly connected to the cutting element, the rotation of the gears thereby causing relative movement of the cutting element.

7. The surgical device according to claim 1, wherein the motor is controlled by a control system having a remote control unit.

8. The surgical device according to claim 1, wherein the rotatable drive shaft is rotated in a first direction to extend the cutting element and rotated in a second direction opposite to the first direction to retract the cutting element.

9. The surgical device according to claim 1, wherein a rotation axis of the rotatable drive shaft is perpendicular to a plane in which the first and second jaws move.

10. The surgical device according to claim 1, wherein a quick-connect coupling is adapted to be positionable over the at least one drive socket.

11. A surgical device, comprising:

a first jaw including a cutting element;

a second jaw in opposed relation to the first jaw, the second jaw movable relative to the first jaw;

a gear housing mounted on one side of the first jaw, the gear housing including a first drive socket and a second drive socket, the first drive socket coupled to a first driver and the second drive socket coupled to a second driver; and

an electromechanical driver component configured to cooperate with the gear housing via the first drive socket and the second drive socket, the first drive socket coupled to a first motor via a first rotatable drive shaft and the second drive socket coupled to a second motor via a second rotatable drive shaft, and the second driver configured to actuate the cutting element in a direction orthogonal to a tissue contacting surface of the first jaw.

12. The surgical device according to claim 11, wherein the first jaw further includes a stapling element.

13. The surgical device according to claim 12, wherein the cutting element and the stapling element are mounted on a thrust plate within the first jaw.

14. The surgical device according to claim 11, wherein the gear housing includes at least two spur gears, a worm and a worm gear in turning and gearing relationship with each other, and an externally-threaded screw fixedly connected at one end to the worm gear and in engagement with an internally-threaded bore of the second jaw, the rotation of the gears thereby causing relative movement of the first jaw and the second jaw.

15. The surgical device according to claim 11, wherein the gear housing mounted to the first jaw cooperates with the second driver, the gear housing having two spur gears and a worm in turning and gearing relationship with each other and with a pair of additional worm gears, each of the pair of additional worm gears having a centrally-disposed, internally-threaded bore in engagement with one of a pair of externally-threaded screws fixedly connected to the cutting element, the rotation of the gears thereby causing relative movement of the cutting element.

16. The surgical device according to claim 11, wherein the first and second motors are controlled by a control system.

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

18. The surgical device according to claim 16, wherein the control system includes a first memory unit.

19. The surgical device 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 the cutting element.

20. The surgical device according to claim 19, wherein the first jaw, the second jaw and the gear housing are included in a surgical attachment and the rotatable drive shafts are included in an elongated shaft, and wherein the surgical attachment is selectively attachable via the first and second drive sockets to a distal end of the elongated shaft, and wherein the control system is configured to identify the surgical attachment, wherein the surgical attachment is one of a plurality of different types of surgical attachments 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 correct type of surgical attachment.

21. The surgical device according to claim 11, wherein the second jaw is movable in parallel relative to the first jaw.

22. The surgical device according to claim 11, further comprising a sensor corresponding to the first rotatable drive shaft, the sensor outputting a signal in response to and corresponding to a rotation of the first rotatable drive shaft

23. The surgical device according to claim 16, wherein the control system includes a remote control unit.