Staple buttress retention system

• US 8,256,654 B2
• Filed: 09/19/2011
• Issued: 09/04/2012
• Est. Priority Date: 05/25/2007
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Tyco Healthcare Group LP (Medtronic Plc)
• Inventors: Bettuchi, Michael, Nentwick, Brian
• Primary Examiner(s): Nash, Brian D
• Assistant Examiner(s): Lopez, Michelle
• Application Number:
  US13/235,825
• Publication Number:
  US 20120012637A1
• Time in Patent Office: 351 Days
• Field of Search: 227/175.1, 227/176.1, 227/180.1, 606/151, 606/219
• US Class Current: 227/175.1
• 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 17/07292 Reinforcements for staple line, e.g. pledgets
• 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 2017/07214 Stapler heads
• CPC Class Codes: A61B 2017/07257 characterised by its anvil
• CPC Class Codes: A61B 2017/07271 characterised by its cartridge

Abstract

A surgical stapling instrument is provided having systems for securing buttress material to the anvil and staple containing cartridge associated with the surgical instrument. The system includes a retainer configured to engage the anvil or the staple containing cartridge and capture the buttress material between the retainer and the anvil or staple containing cartridge. The disclose retainer engages the anvil or staple containing cartridge in snap fit or friction fit fashion. The buttress material includes a circumferential perforation line enabling the center of the buttress material to be stapled to tissue while the remainder of the buttress material remains with the anvil or staple containing cartridge.

Claims

1. A surgical instrument having a system of retaining buttress material comprising:

a handle;

an elongate member extending distally from the handle;

a jaw assembly mounted adjacent a distal end of the elongate member and including a first jaw and a second jaw;

a buttress material positioned against at least one of the first jaw and the second jaw; and

a buttress retainer configured to slide over the at least one of the first jaw and the second jaw such that the buttress retainer releasably retains the buttress material along an entire periphery thereof.

2. The system as recited in claim 1, wherein the first jaw includes a surgical stapling anvil such that the buttress retainer includes a first rail and a second rail configured to be slid over the anvil.

3. The system as recited in claim 2, wherein the first rail includes a first leg having a first inwardly directed lip.

4. The system as recited in claim 3, wherein the first leg is flexible.

5. The system as recited in claim 1, wherein the buttress retainer includes an open center portion.

6. The system as recited in claim 1, wherein the buttress material includes a circumferential perforation line.