Surgical device

• US 8,858,589 B2
• Filed: 07/31/2013
• Issued: 10/14/2014
• 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:
  US13/955,563
• Publication Number:
  US 20140008411A1
• Time in Patent Office: 440 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
• 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
• 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 contacting 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;

at least one driver;

at least one drive socket rotatably supported on the first jaw, the at least one drive socket coupled to a corresponding one of the at least one driver; and

an electromechanical driver component cooperating with the at least one drive socket;

wherein the at least one corresponding driver is 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 1, further comprising a rotatable drive shaft that is rotated in a first direction to effect opening 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.

4. The surgical device according to claim 1, wherein the first jaw rotatably supports:

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, wherein rotation of the gears results in relative movement of the first jaw and the second jaw.

5. The surgical device according to claim 1, wherein the first jaw rotatably supports 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, wherein rotation of the gears results in relative movement of the cutting element.

6. The surgical device according to claim 1, wherein the at least one drive socket is coupled to a motor via a rotatable drive shaft.

7. The surgical device according to claim 6, 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.

8. The surgical device according to claim 6, wherein a rotation axis of the rotatable drive shaft is perpendicular to a plane in which the first and second jaws move.

9. 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 first drive socket and a second drive socket each rotatably supported on the first jaw, the first drive socket coupled to a first driver and the second drive socket coupled to a second driver, the second driver configured to actuate the cutting element in a direction orthogonal to a tissue contacting surface of the first jaw; and

an electromechanical driver component configured to cooperate with each of the first drive socket and the second drive socket, the first drive socket coupled to a first motor and the second drive socket coupled to a second motor.

10. The surgical device according to claim 9, wherein the first jaw further includes a stapling element.

11. The surgical device according to claim 9, wherein the first jaw rotatably supports:

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, wherein rotation of the gears results in relative movement of the first jaw and the second jaw.

12. The surgical device according to claim 9, wherein the first jaw rotatably supports 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, wherein rotation of the gears in relative movement of the cutting element.

13. The surgical device according to claim 9, further comprising:

a first rotatable drive shaft interconnecting the first drive socket and the first motor; and

a second rotatable drive shaft interconnecting the second drive socket and the second motor.

14. The surgical device according to claim 13, wherein the first and second motors are controlled by a control system, and 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.

15. The surgical device according to claim 14, wherein the control system includes a first memory unit, and 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.

16. The surgical device according to claim 15, wherein the first jaw, the second jaw and each drive socket 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.

17. The surgical device according to claim 13, 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.

18. The surgical device according to claim 9, wherein the second jaw is movable in parallel relative to the first jaw.