Surgical instrument

• US 9,974,529 B2
• Filed: 05/04/2015
• Issued: 05/22/2018
• Est. Priority Date: 03/14/2011
• Status: Active Grant

• Current Assignee: Cilag Gmbh International (Johnson & Johnson)
• Original Assignee: Ethicon, LLC (Johnson & Johnson)
• Inventors: Shelton, IV, Frederick E., Baxter, III, Chester O., Hall, Steven G., Yoo, Andrew, Chekan, Edward G.
• Primary Examiner(s): CHUKWURAH, NATHANIEL C
• Application Number:
  US14/703,109
• Publication Number:
  US 20150230783A1
• Time in Patent Office: 1,114 Days
• Field of Search: 227 19, 2271761, 2271791, 2271801, 2271811
• CPC Class Codes: A61B 17/00234 for minimally invasive surgery A61B17/0218, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence
• CPC Class Codes: A61B 17/0218 for minimally invasive surgery A61B17/0281, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence
• CPC Class Codes: A61B 17/0293 with ring member to support retractor elements
• 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 17/07207 the staples being applied sequentially
• CPC Class Codes: A61B 17/1155 Circular staplers comprising a plurality of staples
• CPC Class Codes: A61B 17/3417 Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating syringe needles A61M5/32; dilators A61M29/00
• CPC Class Codes: A61B 2017/00287 Bags for minimally invasive surgery
• CPC Class Codes: A61B 2017/00353 one mechanical instrument performing multiple functions, e.g. cutting and grasping
• CPC Class Codes: A61B 2017/00477 Coupling A61B2017/0046 takes precedence
• CPC Class Codes: A61B 2017/0225 flexible, e.g. fabrics, meshes, or membranes
• CPC Class Codes: A61B 2017/0287 with elastic retracting members connectable to a frame, e.g. hooked elastic wires
• CPC Class Codes: A61B 2017/07257 characterised by its anvil
• CPC Class Codes: A61B 2560/0443 Modular apparatus
• CPC Class Codes: F04C 2270/0421 Controlled or regulated

Abstract

A surgical instrument is disclosed. The surgical instrument includes an actuation system, a drive system, and a tool head. The drive system is coupled to the actuation system and includes a rotatable shaft which defines a longitudinal axis. The tool head is coupled to the drive system and includes an annular cartridge and a pliable bunchable ring. The annular cartridge includes a plurality of staples. The pliable bunchable ring surrounds the annular cartridge. The surgical instrument is configured to drive the staples through the pliable bunchable ring substantially transverse to the longitudinal axis.

Claims

1. A surgical instrument, comprising:

an actuation system;

a drive system coupled to the actuation system, wherein the drive system comprises;

a rotatable shaft which defines a longitudinal axis; and

an outer casing surrounding the rotatable shaft; and

a tool head coupled to the drive system, wherein the tool head comprises;

an annular cartridge comprising a plurality of staples; and

a pliable bunchable ring surrounding the annular cartridge, wherein the surgical instrument is configured to drive the staples through the pliable bunchable ring in a direction which is transverse to the longitudinal axis, and wherein the outer casing is configured to deform the staples driven through the pliable bunchable ring.

2. The surgical instrument of claim 1, wherein the actuation system comprises a movable gear plate which defines a rack.

3. The surgical instrument of claim 2, wherein the drive system further comprises a pinion gear coupled to the rotatable shaft, wherein the pinion gear is configured to meshingly engage with the rack.

4. The surgical instrument of claim 2, wherein the actuation system further comprises an actuator coupled to the movable gear plate.

5. The surgical instrument of claim 4, wherein the actuator is a trigger.

6. The surgical instrument of claim 1, wherein the pliable bunchable ring comprises an elastomeric material.

7. The surgical instrument of claim 1, wherein the tool head further comprises a rotatable drive assembly coupled to the rotatable shaft, wherein the rotatable drive assembly is configured to drive the staples through the pliable bunchable ring substantially transverse to the longitudinal axis as the rotatable shaft is rotated.

8. The surgical instrument of claim 7, wherein the rotatable drive assembly is non-rotatably coupled to the rotatable shaft.

9. The surgical instrument of claim 7, wherein the rotatable drive assembly comprises a staple drive member configured to drive the staples from the annular cartridge as the rotatable shaft is rotated.

10. A surgical instrument, comprising:

a pliable bunchable ring; and

a stapler head surrounded by the pliable bunchable ring, wherein the stapler head comprises;

a plurality of radial openings;

a plurality of staples; and

an actuatable drive assembly configured to drive the staples through the openings and through the pliable bunchable ring as the actuatable drive assembly is actuated, wherein the actuatable drive assembly comprises a rotatable driver configured to rotate within the stapler head.

11. The surgical instrument of claim 10, wherein the pliable bunchable ring is comprised of an elastomeric material.

12. The surgical instrument of claim 10, wherein the pliable bunchable ring is removably stored around the stapler head in a stretched condition.

13. The surgical instrument of claim 10, wherein the pliable bunchable ring is aligned with the radial openings.

14. An end effector of a surgical instrument for fastening a lumen, the end effector comprising:

an annular cartridge body;

an annular row of fasteners removably stored in the annular cartridge body;

an actuatable drive assembly comprising a rotatable driver configured to rotate within the end effector; and

a cinching member extending around the annular cartridge body, wherein the fasteners implant the cinching member to the lumen when the fasteners are ejected from the annular cartridge body.

15. The end effector of claim 14, further comprising an anvil configured to deform the fasteners.

16. The end effector of claim 14, wherein the cinching member is aligned with the annular row of fasteners.

17. The end effector of claim 14, wherein the cinching member is removably stored around the annular cartridge body in a stretched state.

18. The end effector of claim 17, wherein the cinching member is comprised of an elastomeric material.