SURGICAL INSTRUMENT AND METHOD FOR PERFORING A RESECTION

• US 20100301098A1
• Filed: 04/29/2010
• Published: 12/02/2010
• Est. Priority Date: 06/02/2009
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Kostrzewski, Stanislaw
• Granted Patent: US 8,418,909 B2
• Time in Patent Office: Days
• US Class Current: 227/179.1
• CPC Class Codes: A61B 17/00491 Surgical glue applicators surgical adhesives A61L24/00; two-component delivery syringes A61M5/19
• 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 17/07292 Reinforcements for staple line, e.g. pledgets
• CPC Class Codes: A61B 17/1114 of the digestive tract, e.g. bowels or oesophagus
• CPC Class Codes: A61B 17/115 Staplers for performing anastomosis in a single operation
• CPC Class Codes: A61B 17/1155 Circular staplers comprising a plurality of staples
• CPC Class Codes: A61B 17/32053 Punch like cutting instruments, e.g. using a cylindrical or oval knife A61B17/326 takes precedence; trepans A61B17/1695; for use on the cornea A61F9/007
• CPC Class Codes: A61B 2017/07214 Stapler heads
• CPC Class Codes: A61B 2017/07257 characterised by its anvil
• CPC Class Codes: A61B 2017/07285 characterised by its cutter
• CPC Class Codes: A61B 2017/1132 End-to-end connections
• CPC Class Codes: A61B 2017/1142 Purse-string sutures
• CPC Class Codes: A61B 2217/005 with suction drainage system
• CPC Class Codes: A61B 2217/007 with irrigation system
• CPC Class Codes: A61M 1/77 Suction-irrigation systems aspiration tips supplying fluids A61M1/85; specific for negative pressure wound therapy A61M1/92; combined with tracheal tubes A61M16/0463

Abstract

An end effector for use with a surgical instrument comprising an anvil shaft, a first anvil assembly disposed at a distal portion of the anvil shaft and a second anvil assembly mountable on the anvil shaft proximally of the first anvil assembly. Also, a method for performing a surgical procedure is provided including the steps of providing a surgical instrument including a first cartridge assembly and a first anvil assembly having an anvil shaft, approximating the first anvil assembly and first cartridge assembly and ejecting staples from the first cartridge assembly. The method further includes removing the first cartridge assembly from the tubular organ, and inserting a second anvil assembly into the tubular organ to engage the anvil shaft of the first anvil assembly and ejecting staples from a second cartridge assembly towards the second anvil assembly.

Claims

1. An end effector for use with a surgical instrument, comprising:

an anvil shaft;

a first anvil assembly disposed at a distal portion of the anvil shaft; and

a second anvil assembly mountable on the anvil shaft proximally of the first anvil assembly.

2. The end effector of claim 1, wherein the anvil assembly and anvil shaft are aligned by key slots.

3. The end effector of claim 1, wherein the first anvil assembly has a first plurality of anvil pockets arranged in a substantially annular row to deform fasteners fired from a first fastener cartridge.

4. The end effector of claim 3, wherein the second anvil assembly has a second plurality of anvil pockets arranged in a substantially annular row to deform fasteners fired from a second fastener cartridge.

5. The end effector of claim 1, wherein each of the first anvil assembly and the second anvil assembly is slidable in response to movement of the anvil shaft.

6. The end effector of claim 5, wherein the second anvil assembly includes a weakened portion that is configured to break when a knife moves therethrough.

7. The end effector of claim 6, wherein the first anvil assembly has a knife receiving portion for embedding the knife when the knife moves through the second anvil assembly.

8. The end effector of claim 1, wherein the first anvil assembly includes an anvil head having a circumferential groove.

9. The end effector of claim 1, wherein the first anvil assembly includes an anvil head, a tubular member and a spring biasing the tubular member in a proximal direction.

10. The end effector of claim 9, wherein the tubular member received a knife and embeds a knife therein after passage of the knife through the second anvil assembly.

11. The end effector of claim 1, wherein the second anvil assembly includes a guide having an annular space therein, dimensioned to receive a knife.

12. The end effector of claim 11, wherein the second anvil assembly includes a weakened portion distal of the annular space, the weakened portion breakable by a knife moving therethrough.

13. The end effector of claim 1, wherein the second anvil assembly is mountable to the anvil shaft after fasteners are deformed by the first anvil assembly.

14. The end effector of claim 1, wherein the anvil shaft is removably mountable to a surgical instrument having a cartridge containing a plurality of fasteners and an actuator for firing the fasteners from the cartridge.

15. A method of performing a surgical procedure, comprising the steps of:

providing a surgical instrument including a first cartridge assembly and a first anvil assembly having an anvil shaft;

inserting the first anvil assembly into a tubular organ;

approximating the first anvil assembly toward the first cartridge assembly;

ejecting staples from the first cartridge assembly towards the first anvil assembly;

removing the first cartridge assembly from the tubular organ such that the first cartridge assembly operatively disengages the anvil shaft of the first anvil assembly;

inserting a second anvil assembly into the tubular organ such that the second anvil assembly engages the anvil shaft of the first anvil assembly;

approximating a second cartridge assembly and the second anvil assembly; and

ejecting staples from the second cartridge assembly towards the second anvil assembly.

16. The method of claim 15, further comprising cutting a portion of the tubular organ located between the first anvil assembly and the second anvil assembly.

17. The method of claim 16, further comprising the step of securing the first anvil assembly within the tubular organ, the step including wrapping a pursestring around the tubular organ and the first anvil assembly and tightening the purse string.

18. The method of claim 16, further comprising the step of drawing the portion of the tubular organ located between the first anvil assembly and the second anvil assembly towards the anvil shaft, wherein the step of drawing includes wrapping a purse string around the portion of the tubular organ and tightening the purse string.

19. The method of claim 18, further comprising the step of drawing a portion of the tubular organ located between the second anvil assembly and the second cartridge assembly towards the anvil shaft, the step including wrapping a purse string around said portion of the tubular organ and tightening the purse string.

20. The method of claim 16, further comprising the step of irrigating an inner portion of the tubular organ.

21. The method of claim 16, wherein the step of cutting the tubular organ includes inserting a second cartridge assembly having a knife into the tubular organ and firing the second cartridge assembly to move the knife from a proximal position toward a distal position.

22. The method of claim 21, wherein the step of cutting includes breaking a portion of the second anvil assembly when the knife moves from the proximal position toward the distal position.

23. The method of claim 18, further comprising the steps:

inserting the first cartridge assembly into the tubular organ such that the first cartridge assembly operatively engages the first anvil assembly prior to the step of approximating the first anvil assembly; and

inserting the second cartridge assembly into the tubular organ such that the second cartridge assembly operatively engages the second anvil assembly prior to the step of approximating the second cartridge.