Access assembly

• US 8,926,504 B2
• Filed: 07/29/2011
• Issued: 01/06/2015
• Est. Priority Date: 10/01/2010
• Status: Expired due to Fees

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Okoniewski, Gregory
• Primary Examiner(s): MCEVOY, THOMAS M
• Application Number:
  US13/193,652
• Publication Number:
  US 20120083660A1
• Time in Patent Office: 1,257 Days
• Field of Search: 220/426, 600/185, 600/201, 600/184, 600203-208, 606/108, 606/191
• US Class Current: 600/184
• 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 17/0293 with ring member to support retractor elements
• 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 2017/00557 inflatable A61B2017/22051 takes precedence
• CPC Class Codes: A61B 2017/0225 flexible, e.g. fabrics, meshes, or membranes
• CPC Class Codes: A61B 2017/3443 with means for adjusting the length of a cannula
• CPC Class Codes: A61B 2017/3445 used as instrument channel for multiple instruments catheters A61B2017/22072
• CPC Class Codes: A61B 2017/3466 for simultaneous sealing of multiple instruments
• CPC Class Codes: A61B 2017/3486 Balloon
• CPC Class Codes: Y10T 29/49826 Assembling or joining

Abstract

An access assembly includes a body portion defining a longitudinal axis and having at least one lumen defined therethrough. The at least one lumen is configured for passage of a surgical instrument therethrough. An outer sleeve is disposed about the body portion to define a chamber therebetween. The chamber is selectively inflatable from a deflated condition, for positioning the access assembly within an opening in tissue, and an inflated condition, for retaining the access assembly within the opening in tissue in sealing relation therewith.

Claims

1. An access assembly, comprising:

a body portion defining a longitudinal axis and having at least one lumen defined therethrough and an indentation defined adjacent the at least one lumen, the at least one lumen configured for passage of a surgical instrument therethrough, the indentation configured to facilitate movement of the surgical instrument inserted through the at least one lumen; and

an outer sleeve disposed about the body portion to define a chamber therebetween, the chamber being selectively inflatable from a deflated condition, for positioning the access assembly within an opening in tissue, and an inflated condition, for retaining the access assembly within the opening in the tissue in sealing relation therewith, wherein the outer sleeve is monolithically formed and has proximal and distal ring-like sections and a waist, at least one of the proximal and distal ring-like sections having a first thickness and the waist having a second thickness different than the first thickness.

2. The access assembly according to claim 1, further comprising a valve disposed on the outer sleeve and in fluid communication with the chamber for selectively permitting introduction of inflation fluids into the chamber.

3. The access assembly according to claim 1, wherein a free end of the outer sleeve is sealingly engaged with the body portion to define the chamber therebetween.

4. The access assembly according to claim 1, wherein the access assembly defines a generally hourglass-shaped configuration.

5. The access assembly according to claim 1, wherein the chamber is configured for receipt of an inflation fluid therein.

6. The access assembly according to claim 1, wherein the chamber is at least partially filled with a compressible material.

7. The access assembly according to claim 1, wherein the first thickness is less than the second thickness.

8. The access assembly according to claim 1, wherein the indentation extends along a length of the body portion.