IP Library Granted Patent US 9,820,741
Granted Patent B2
US 9,820,741 · App. 13/106,111 · Granted Nov 21, 2017

Replaceable staple cartridge

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Quick Facts
Patent No.
US 9,820,741
App. No.
13/106,111
Granted
Nov 21, 2017
Kind
B2
Abstract

A stapling device including a replaceable loading unit is provided. The loading unit includes an elongated body and a stapling assembly having a first jaw and a second jaw. The first jaw of the stapling assembly includes an anvil assembly. The second jaw of the stapling assembly includes a releasably mounted cartridge assembly having a detent connection with the stapling assembly. Also provided is a tool for removing facilitating the separation of a replaceable cartridge assembly from a loading unit.

Claims (18)

1. A loading unit comprising:

an elongated body; and

a stapling assembly having a first jaw and a second jaw, the first jaw including an anvil assembly, and the second jaw including a cartridge assembly having a staple cartridge and a carrier, a proximal end of the cartridge assembly being releasably mounted to the elongate body by a detent connection of the carrier such that the cartridge assembly is pivotable relative to the anvil assembly when the carrier is mounted to the elongate body.

2. The loading unit of claim 1 , wherein the detent connection includes a pair of cut-outs in the proximal end of the carrier.

3. The loading unit of claim 2 , wherein each cut-out includes a recess and a pivot hole.

4. The loading unit of claim 3 , wherein the detent connection includes springs and each recess receives one of the springs.

5. The loading unit of claim 4 , wherein each pivot hole is configured to receive a pivot pin.

6. The loading unit of claim 5 , wherein each spring includes a flange for selectively retaining a pivot pin within each of the pivot holes.

7. A replaceable cartridge assembly comprising:

a staple cartridge; and

a carrier supporting the staple cartridge, the carrier including a proximal end configured to selectively secure the cartridge assembly to a stapling assembly, the carrier having a pair of resilient springs arranged to releasably mount the cartridge assembly to a stapling assembly;

wherein the cartridge assembly is pivotable relative to the anvil assembly when the carrier is mounted to the elongate block.

8. The assembly of claim 7 , wherein the proximal end of the carrier defines a pair of cut-outs.

9. The assembly of claim 8 , wherein each cut-out includes a recess and a pivot hole.

10. The assembly of claim 9 , wherein each recess is configured to receive one of the pair of springs.

11. The assembly of claim 9 , wherein each pivot hole is configured to receive a pivot pin.

12. The assembly of claim 10 , wherein each spring includes a flange for selectively retaining a pivot pin within each of the pivot holes.

13. The assembly of claim 7 , wherein the cartridge assembly is pivotable relative to the stapling assembly when the carrier is mounted to the stapling assembly.

Assignments (2)
CHANGE OF NAME Recorded Oct 2, 2012
From: TYCO HEALTHCARE GROUP LP
To: COVIDIEN LP
Reel/Frame 029065/0448 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 12, 2011
From: KOSTRZEWSKI, STANISLAW
To: TYCO HEALTHCARE GROUP LP
Reel/Frame 026267/0120 →