Support structures and methods of using the same

• US 7,938,307 B2
• Filed: 09/30/2005
• Issued: 05/10/2011
• Est. Priority Date: 10/18/2004
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Tyco Healthcare Group LP (Medtronic Plc)
• Inventors: Bettuchi, Michael J.
• Primary Examiner(s): Rada; Rinaldi I.
• Assistant Examiner(s): Low; Lindsay
• Application Number:
  US11/241,267
• Publication Number:
  US 20060085034A1
• Time in Patent Office: 2,048 Days
• Field of Search: 2271751-1821, 227/19, 606/151, 606/219
• 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 17/07207 the staples being applied sequentially
• CPC Class Codes: A61B 17/07292 Reinforcements for staple line, e.g. pledgets
• CPC Class Codes: A61B 17/105 Wound clamp magazines for packaging sharps A61B50/3001
• CPC Class Codes: A61B 17/115 Staplers for performing anastomosis in a single operation
• CPC Class Codes: A61B 17/1152 applying the staples on the outside of the lumen
• CPC Class Codes: A61B 17/1155 Circular staplers comprising a plurality of staples
• CPC Class Codes: A61B 2017/00004 (bio)absorbable, (bio)resorbable or resorptive
• CPC Class Codes: A61B 2017/00557 inflatable A61B2017/22051 takes precedence
• CPC Class Codes: A61B 2017/00853 low friction, hydrophobic and corrosion-resistant fluorocarbon resin coating (ptf, ptfe, polytetrafluoroethylene)
• CPC Class Codes: A61B 2017/00893 pharmaceutically effective
• CPC Class Codes: A61B 2017/00898 expandable upon contact with fluid
• CPC Class Codes: A61B 2017/1157 applying the staples radially

Abstract

According to an aspect of the present disclosure, an apparatus for forming an anastomosis between adjacent intestinal sections of tissue is provided. The apparatus includes an anastomosis device having an anvil and a tubular body portion, wherein the anvil is selectively attachable to the tubular body portion by a shaft; and a support structure for deposition between the intestinal sections of tissue. The support structure includes a body defining an aperture therein for receiving the shaft. The body has an outer terminal edge. The support structure includes at least one layer of expandable material disposed at the outer terminal edge of the body.

Claims

1. An apparatus for forming an anastomosis between adjacent intestinal sections of tissue, comprising:

a) an anastomosis device having an anvil and a tubular body portion, the anvil being selectively attachable to the tubular body portion by a shaft; and

b) a support structure for deposition between the intestinal sections of tissue, the support structure including a body defining an aperture therein for receiving the shaft, the body having an outer terminal edge, wherein the body is compressible so that the outer terminal edge of the body extends beyond the outer radial surface of the anvil and the tubular body portion, the support structure including at least one layer of expandable material disposed at the outer terminal edge of the body,

wherein the support structure has an unhydrated condition wherein the body has a first diameter and a first thickness, and a hydrated condition wherein the body has a second diameter greater than the first diameter and a second thickness greater than the first thickness, and

wherein the body expands from the first diameter and the first thickness to a second diameter and a second thickness upon application of a fluid thereto, the body being constructed from a first part of a two-part wound treatment material, and the fluid applied thereto is a second part of the two-part wound treatment material.

2. The apparatus according to claim 1, wherein the aperture is defined by an inner terminal edge of the body, the inner terminal edge being disposed radially inward of staple receiving slots of a staple cartridge assembly disposed in the tubular body portion.

3. The apparatus according to claim 1, wherein the body is perforated.

4. The apparatus according to claim 1, wherein the body is porous.

5. The apparatus according to claim 1, wherein the at least one layer of expandable material expands upon fluid absorption.

6. The apparatus according to claim 1, wherein the body is fabricated from at least one of a polyglactic material, a glycolide homopolymer, and a synthetic absorbable lactomer 9-1 material.

7. The apparatus according to claim 1, wherein the body is selected from the group consisting of a mesh, knit, woven and non-woven material.

8. The apparatus according to claim 1, wherein the body is a fabric.

9. The apparatus according to claim 1, wherein the body includes a wound treatment material.

10. The apparatus according to claim 9, wherein the wound treatment material is at least one of an adhesive, a sealant, a hemostat, and a medicament.

11. The apparatus according to claim 1, wherein the body is fabricated from foam.

12. The apparatus according to claim 1, wherein the body has a first thickness greater than one quarter of a diameter of the body.