SURGICAL ACCESS PORT

• US 20080097332A1
• Filed: 10/18/2007
• Published: 04/24/2008
• Est. Priority Date: 10/18/2006
• Status: Abandoned Application

• Current Assignee: Stout Medical Group, L.P. (Alphatec Holdings Incorporated)
• Original Assignee: Stout Medical Group, L.P. (Alphatec Holdings Incorporated)
• Inventors: Greenhalgh, Ellis, Igoe, Michael
• Application Number:
  US11/874,855
• Publication Number:
  US 20080097332A1
• Time in Patent Office: Days
• US Class Current: 604/167.06
• CPC Class Codes: A61B 17/3421 Cannulas
• CPC Class Codes: A61B 17/3439 with means for changing the inner diameter of the cannula, e.g. expandable A61B17/3423, A61B17/3431 take precedence; catheters A61M25/0662
• CPC Class Codes: A61B 17/3462 with means for changing the diameter or the orientation of the entrance port of the cannula, e.g. for use with different-sized instruments, reduction ports, adapter seals expandable cannulas A61B17/3417
• CPC Class Codes: A61B 17/3498 Valves therefor, e.g. flapper valves, slide valves haemostasis valves A61M39/06; check valves A61M39/24
• CPC Class Codes: A61M 2039/0626 used with other surgical instruments, e.g. endoscope, trocar
• CPC Class Codes: A61M 2039/0633 the seal being a passive seal made of a resilient material with or without an opening
• CPC Class Codes: A61M 2039/0686 comprising more than one seal
• CPC Class Codes: A61M 39/06 Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof

Abstract

This disclosure concerns self sealing access ports, and especially ports usable to provide access to body cavities for surgical procedures. A self-sealing surgical access port permitting a surgical tool to be used within a body cavity, for example during laparoscopic surgery, is disclosed. The tube can be elastically deformable radially outwardly to permit the surgical tool to pass through the duct and into the body cavity.

Claims

1. A self-sealing surgical port device for providing access to a body cavity for a surgical instrument comprising:

a rigid duct that can have a distal end positionable within the body cavity;

a flexible tube positioned substantially coaxially within the duct, wherein the tube is attached to the duct, and wherein the tube comprises a first seal comprising a membrane exposed to the radially inner surface of the tube, and wherein the tube is elastic;

wherein the tube has open terminal ends and a narrowed central region;

wherein the central region of the tube can be elastically deformable radially outwardly to permit the surgical instrument to pass through the duct and into the body cavity; and

wherein the membrane is configured to close around the instrument to substantially continuously seal the tube while the instrument extends therethrough.

2. The device of claim 1, wherein the tube comprises a low friction surface on the radially inner surface of the tube.

3. The device of claim 2, wherein the membrane has a low-friction surface exposed to the radially inner surface of the tube.

4. The device of claim 1, wherein the duct comprises a second seal.

5. The device of claim 1, wherein the membrane comprises a metal.

6. The device of claim 1, wherein the membrane comprises a plastic.

7. The device of claim 1, wherein the membrane comprises an elastomeric material.

8. The device of claim 1, wherein the membrane has a longitudinal slit configured to flex the membrane in response to inserting of the instrument through the narrow central region.

9. The device of claim 1, wherein the biasing member and seal membrane can be unattached over their entire length and more completely independently of one another.

10. A method of accessing a surgical site comprising:

inserting a seal through tissue and into a body cavity, wherein the radially expanding the seal, wherein a radially expanded configuration of the seal has a longitudinal channel, and wherein the longitudinal channel is configured to allow the passage of a surgical instrument;

inserting the surgical instrument through the longitudinal channel;

affecting tissue in or around the body cavity with the surgical instrument after the surgical instrument is inserted in the longitudinal channel.