Buttress support design for EEA anvil

• US 9,186,144 B2
• Filed: 02/23/2015
• Issued: 11/17/2015
• Est. Priority Date: 01/26/2012
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Stevenson, Richard, Casasanta, Thomas Jr., Carter, Sally
• Primary Examiner(s): Smith, Scott A.
• Application Number:
  US14/628,966
• Publication Number:
  US 20150164503A1
• Time in Patent Office: 267 Days
• Field of Search: 227/19, 227/175.1, 227/176.1, 227/180.1, 606/139, 606/143, 606/151, 606/153, 606/219
• US Class Current: 1/1
• CPC Class Codes: A61B 17/07292 Reinforcements for staple line, e.g. pledgets
• 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 2017/1132 End-to-end connections

Abstract

An apparatus for joining two hollow organ sections with an annular array of surgical staples includes a staple cartridge, an anvil, a buttress member, and a buttress mount. In particular, the staple cartridge includes a plurality of surgical staples in an annular array. The anvil includes an anvil member and a shaft extending therefrom. The anvil member defines a plurality of staple pockets for deforming the surgical staples. The anvil is movable relative to the staple cartridge component between spaced apart and approximated positions to adjustably clamp tissue between the staple cartridge and the anvil. The buttress member is concentrically aligned with the plurality of staple pockets defined in the anvil member. The buttress mount is detachably secured with the shaft of the anvil. The buttress mount includes at least one support member radially extending outward to secure the buttress member to the anvil member.

Claims

1. An apparatus for joining two hollow organ sections with an annular array of surgical staples, the apparatus comprising:

a staple cartridge component including a plurality of surgical staples in an annular array;

an anvil component including an anvil member and a shaft extending therefrom, the anvil member defining a plurality of staple pockets for deforming the plurality of surgical staples, the anvil component movable relative to the staple cartridge component between spaced apart and approximated positions to adjustably clamp tissue between the staple cartridge and anvil component;

a buttress member in registration with at least a portion of the plurality of staple pockets defined in the anvil member; and

a buttress mount secured to the shaft of the anvil component, the buttress mount configured to be received in a recess defined in the anvil member, the buttress mount including at least one support member configured to engage a peripheral edge of the recess of the anvil member to secure the buttress mount within the recess, wherein the buttress mount is attached to a distal surface of the buttress member.

2. The apparatus according to claim 1, wherein the at least one support member is affixed to the buttress member.

3. The apparatus according to claim 1, wherein the buttress mount further includes an annular ring member configured to receive the shaft of the anvil component therethrough, the at least one support member extending radially outward from the annular ring member.

4. The apparatus according to claim 3, wherein the buttress mount is separate from the buttress member, and the buttress mount is detachable from the buttress member.

5. The apparatus according to claim 3, wherein the at least one support member extends linearly outward from the annular ring member.

6. The apparatus according to claim 1, wherein the at least one support member is disposed radially inward of the plurality of staple pockets.

7. The apparatus according to claim 1, wherein the buttress member is made of a biodegradable material.

8. The apparatus according to claim 1, further comprising a knife member movable relative to the staple cartridge component, wherein the at least one support member of the buttress mount is disposed radially inward of the knife member when the knife member engages the buttress member.