Elongated seal anchor for use in surgical procedures

• US 8,257,252 B2
• Filed: 06/11/2010
• Issued: 09/04/2012
• Est. Priority Date: 08/06/2009
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Tyco Healthcare Group LP (Medtronic Plc)
• Inventors: Kleyman, Gennady
• Primary Examiner(s): Robert, Eduardo C
• Assistant Examiner(s): NEGRELLIRODRIGUEZ, CHRISTINA
• Application Number:
  US12/813,861
• Publication Number:
  US 20110034778A1
• Time in Patent Office: 816 Days
• Field of Search: 600/287, 600205-208, 600/184, 600/187, 600/201, 600/219, 606/108, 604/21, 604/27, 604/167.06
• US Class Current: 600/206
• CPC Class Codes: A61B 1/32 Devices for opening or enlarging the visual field, e.g. of a tube of the body dilators A61M29/00
• CPC Class Codes: A61B 17/3423 Access ports, e.g. toroid shape introducers for instruments or hands access sites for liquids A61M39/0247
• CPC Class Codes: A61B 2017/3466 for simultaneous sealing of multiple instruments

Abstract

A surgical apparatus for positioning within a tissue tract accessing an underlying body cavity includes a seal anchor member comprising a compressible material and being adapted to transition between a first expanded condition to facilitate securing of the seal anchor member within the tissue tract and in substantial sealed relation with tissue surfaces defining the tissue tract and a second compressed condition to facilitate at least partial insertion of the seal anchor member within the tissue tract. The seal anchor member has proximal and distal ends defining elongated perimeters. At least one port extends between the proximal and distal ends and is adapted for reception of an object whereby compressible material defining the at least one port is adapted to deform to establish a substantial sealed relation with the object.

Claims

1. A surgical apparatus for positioning within a tissue tract accessing an underlying body cavity, which comprises:

a seal anchor member comprising a proximal end, a distal end, an intermediate portion extending between the proximal and distal ends, and a longitudinal axis defined between the proximal and distal ends, the seal anchor including a compressible material;

the seal anchor member being adapted to transition between a first expanded condition and a second compressed condition, the first expanded condition facilitating a securing of the seal anchor member within the tissue tract and in substantial scaled relation with tissue surfaces defining the tissue tract, and the second compressed condition facilitating an at least partial insertion of the seal anchor member within the tissue tract;

wherein the perimeters of the intermediate portion are elongated in a direction substantially orthogonal to the longitudinal axis when in the first expanded condition to facilitate the positioning of the seal anchor member within a tissue tract accessing a narrow underlying body cavity;

the seal anchor member defining at least one port extending between the proximal and distal ends and being adapted for the reception of an object whereby compressible material defining the at least one port is adapted to deform to establish a substantial sealed relation with the object; and

wherein at least one of the proximal and distal ends exhibits an arcuate configuration to facilitate an insertion of the seal anchor member within the tissue tract.

2. The surgical apparatus according to claim 1, wherein each of the proximal and distal ends exhibits an arcuate configuration.

3. The surgical apparatus according to claim 1, wherein the arcuate configuration is concave.

4. The surgical apparatus according to claim 1, wherein the arcuate configuration is convex.

5. The surgical apparatus according to claim 1, wherein the seal anchor member is formed of a foam material.

6. The surgical apparatus according to claim 5, wherein the foam material is at least partially constituted of a material selected from the group consisting of polyisoprene, urethane, and silicone.

7. The surgical apparatus according to claim 1, wherein the seal anchor member is formed of a gel material.

8. The surgical apparatus according to claim 1, wherein the at least one port includes at least an undercut to protect against leaks.

9. The surgical apparatus according to claim 1, wherein the surgical apparatus may be rolled, twisted, or otherwise deformed to fit nonlinearly into the tissue tract.

10. The surgical apparatus according to claim 1, wherein the surgical apparatus may be cut.

11. The surgical apparatus according to claim 1, wherein the seal anchor member includes a plurality of ports.

12. The surgical apparatus according to claim 11, wherein the plurality of ports is configured linearly with respect to the major axis of the perimeter of at least one of the distal and proximal ends.

13. The surgical apparatus according to claim 11, wherein each port of the plurality of ports is spaced equally from its neighboring ports.

14. The surgical apparatus according to claim 11, wherein the seal anchor member includes a plurality of generally tubular port segments, the port segments defining respective ports.

15. The surgical apparatus according to claim 1, wherein the proximal and distal ends extend radially outward from the intermediate portion.

16. The surgical apparatus according to claim 1, wherein the perimeters of the proximal and distal ends are elongated to facilitate the positioning of the seal anchor member within a tissue tract accessing a narrow underlying body cavity.

17. The surgical apparatus according to claim 1, wherein the seal anchor member has a first length and a second length, the first and second lengths transverse to the longitudinal axis of the seal anchor member, wherein the first length is different from the second length.

18. The surgical apparatus according to claim 17, wherein the difference between the first length and the second length defines an oblong configuration for the seal anchor member.