Foam introduction system including modified port geometry

• US 8,480,683 B2
• Filed: 11/04/2010
• Issued: 07/09/2013
• Est. Priority Date: 11/24/2009
• Status: Expired due to Fees

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Fowler, David N., Farascioni, David, Galel, Daniel
• Primary Examiner(s): Severson, Ryan
• Assistant Examiner(s): FISHBACK, ASHLEY LAUREN
• Application Number:
  US12/939,204
• Publication Number:
  US 20110125186A1
• Time in Patent Office: 978 Days
• Field of Search: 600/201, 600206-208, 604/93.01, 604/164.01, 604/164.04, 604/174, 604/175, 604/256, 606/108, 606/159, 606/191
• US Class Current: 606/108
• CPC Class Codes: A61B 17/0218 for minimally invasive surgery A61B17/0281, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence
• 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 2017/0225 flexible, e.g. fabrics, meshes, or membranes
• CPC Class Codes: A61B 2017/3429 having a unitary compressible body, e.g. made of silicone or foam
• CPC Class Codes: A61B 2017/3441 with distal sealing means
• CPC Class Codes: A61B 2017/3445 used as instrument channel for multiple instruments
• CPC Class Codes: A61B 2017/3447 Linked multiple cannulas
• CPC Class Codes: A61B 2017/346 with wings
• CPC Class Codes: A61B 2017/348 Means for supporting the trocar against the body or retaining the trocar inside the body
• CPC Class Codes: A61B 2017/3488 Fixation to inner organ or inner body tissue

Abstract

A surgical apparatus for positioning within a tissue tract accessing an underlying body cavity includes a seal anchor member including leading portion, a trailing portion, and an intermediate portion disposed between the leading and trailing portions. The leading portion of the seal anchor member is configured and adapted to ease insertion of the seal anchor member into the tissue tract. Subsequent to insertion of the seal anchor member, the leading portion of the seal anchor member is also configured and adapted to facilitate securing and/or anchoring of the seal anchor member within the tissue tract.

Claims

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

a seal anchor member comprising;

a leading portion including a first positioning segment and a second positioning segment, each of the first and second positioning segments being movable between respective first and second configurations;

a trailing portion;

an intermediate portion disposed between the leading and trailing portions; and

a first lumen extending through the trailing portion and the intermediate portion and being aligned with the first positioning segment when the first positioning segment is in its first configuration and a second lumen extending through the trailing portion and the intermediate portion and being aligned with the second positioning segment when the second positioning segment is in its first configuration,

wherein the first positioning segment and the second positioning segment are each independently transitionable from their respective first configurations to their respective second configurations by an object that is inserted through the first and second lumen respectively.

2. The surgical apparatus of claim 1, wherein the first configuration has a first arrangement of elements, and the second configuration has a second arrangement of elements.

3. The surgical apparatus of claim 1, wherein the leading portion has a first diameter in the first configuration and a second diameter in the second configuration, the first diameter different from the second diameter.

4. The surgical apparatus of claim 1, wherein the transition between the first and second configurations is in response to insertion of a surgical instrument through at least one of the lumens.

5. The surgical apparatus of claim 1, wherein the leading portion comprises a plurality of positioning members defining at least one gap between adjacent positioning members to facilitate compression of the leading portion in a transverse direction.

6. The surgical apparatus of claim 1, wherein the leading portion has a substantially flat profile in the second configuration.

7. The surgical apparatus of claim 1, wherein the first and second positioning segments are radially translatable with respect to the intermediate portion.

8. The surgical apparatus of claim 7, wherein the first and second positioning segments are inwardly directed while in the first configuration to facilitate insertion of the leading portion into the tissue tract.

9. The surgical apparatus of claim 7, wherein the first and second positioning segments are outwardly directed while in the second configuration to facilitate anchoring of the seal anchor member within the tissue tract.

10. The surgical apparatus of claim 7, wherein the first and second positioning segments are inwardly biased.

11. The surgical apparatus of claim 7, wherein the first and second positioning segments translate radially to be outwardly directed in response to insertion of an instrument through each of the first and second lumens.

12. The surgical apparatus of claim 11, wherein the first and second positioning segments are configured such that axial movement of the instrument inserted through the respective first and second lumens causes radial translation of the first and second positioning segments and subsequent outward movement.