Flexible surgical stapler with motor in the head

• US 9,113,875 B2
• Filed: 09/08/2014
• Issued: 08/25/2015
• Est. Priority Date: 06/19/2009
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Viola, Frank, Beardsley, John W., Bryant, Teddy R.
• Primary Examiner(s): Long, Robert
• Application Number:
  US14/479,422
• Publication Number:
  US 20140374464A1
• Time in Patent Office: 351 Days
• Field of Search: 2271751-1821
• US Class Current: 1/1
• 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 2017/00017 Electrical control of surgical instruments
• CPC Class Codes: A61B 2017/00022 Sensing or detecting at the treatment site
• CPC Class Codes: A61B 2017/003 Steerable
• CPC Class Codes: A61B 2017/00309 Cut-outs or slits
• CPC Class Codes: A61B 2017/00327 with actuating members moving in opposite directions
• CPC Class Codes: A61B 2017/00398 using powered actuators, e.g. stepper motors, solenoids
• CPC Class Codes: A61B 2017/00433 knurled
• CPC Class Codes: A61B 2017/07271 characterised by its cartridge
• 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 2017/2927 the angular position of the head being adjustable with respect to the shaft
• CPC Class Codes: A61B 2017/2932 Transmission of forces to jaw members

Abstract

A surgical stapler having a remote motorized staple head is provided and generally includes a handle having a control button and a highly flexible cable extending distally from the handle. A housing incorporating a staple assembly is affixed to a distal end of the flexible cable. The housing may incorporate articulating structure to position the staple assembly relative to the remainder of the housing.

Claims

1. A surgical stapler, comprising:

an elongate member; and

a stapler head positioned at a first end of the elongate member, the stapler head including;

a housing including a motor disposed therein;

a staple assembly positioned distally of the housing;

a drive member operably coupled to the staple assembly;

an articulating section extending between and interconnecting the housing and the staple assembly, the articulating section selectively articulatable to articulate the staple assembly relative to the housing; and

a flexible member extending through the articulating section, the flexible member operably coupling the motor with the drive member, wherein the motor is configured to rotate the flexible member, and wherein rotation of the flexible member, in turn, translates the drive member through the staple assembly.

2. The surgical stapler according to claim 1, wherein the staple assembly includes a staple cartridge configured to retain surgical staples therein and an anvil assembly, at least one of the anvil assembly or the staple cartridge movable with respect to the other between an open position and a closed position.

3. The surgical stapler according to claim 2, wherein translation of the drive member through the staple assembly moves the anvil assembly from the open position to the closed position and fires the surgical staples from the staple cartridge.

4. The surgical stapler according to claim 1, wherein the flexible member is a lead screw and wherein the drive member is threadably disposed about the lead screw.

5. The surgical stapler according to claim 1, further including a handle coupled to a second end of the elongate member.

6. The surgical stapler according to claim 5, further including a control button disposed on the handle and coupled to the motor for selectively rotating the flexible member.

7. The surgical stapler according to claim 1, wherein the articulating section is configured to permit articulation of the staple assembly relative to the housing in at least one plane.

8. The surgical stapler according to claim 1, further including a flexible cover disposed about the articulating section.

9. The surgical stapler according to claim 1, wherein at least a portion of the elongate member is flexible.

10. The surgical stapler according to claim 1, wherein the flexible member is configured to flex to conform to an articulated position of the articulating section.

11. A surgical stapler, comprising:

an elongate member having a first end and a second end;

a handle coupled to the first end of the elongate member; and

a stapler head coupled to the second end of the elongate member, the stapler head including;

a housing including a motor disposed therein;

a staple assembly including a staple cartridge configured to retain surgical staples therein and an anvil assembly pivotably coupled to the staple cartridge;

a drive member selectively translatable through the staple assembly for moving the anvil assembly relative to the staple cartridge from an open position to a closed position and for firing the surgical staples from the staple cartridge;

an articulating section interconnecting the housing and the staple assembly, the articulating section configured to permit articulation of the staple assembly relative to the housing; and

a flexible member extending through the articulating section, the flexible member operably coupled to the motor proximally of the articulating section and having the drive member coupled thereto distally of the articulating section, wherein the motor is configured to rotate the flexible member, and wherein rotation of the flexible member, in turn, translates the drive member through the staple assembly.

12. The surgical stapler according to claim 11, further including a control button disposed on the handle and coupled to the motor for selectively rotating the flexible member.

13. The surgical stapler according to claim 11, wherein the articulating section is configured to permit articulation of the staple assembly relative to the housing in at least one plane.

14. The surgical stapler according to claim 11, further including a flexible cover disposed about the articulating section.

15. The surgical stapler according to claim 11, wherein at least a portion of the elongate member is flexible.

16. The surgical stapler according to claim 11, wherein the flexible member is configured to flex to conform to an articulated position of the articulating section.

17. The surgical stapler according to claim 11, wherein the flexible member is a lead screw and wherein the drive member is threadably disposed about the lead screw.