Wound retractor

• US 8,973,583 B2
• Filed: 06/26/2012
• Issued: 03/10/2015
• Est. Priority Date: 06/05/2002
• Status: Expired due to Fees

• Current Assignee: Applied Medical Resources Corporation (Applied Medical Corporation)
• Original Assignee: Applied Medical Resources Corporation (Applied Medical Corporation)
• Inventors: Nguyen, Eric, Gadberry, Donald L., Johnson, Gary M., Hart, Charles C., Brustad, John R., Bowes, Robert R., Albrecht, Jeremy J., Sakakine, Ghassan, Kahle, Henry
• Primary Examiner(s): Brown, Michael A.
• Application Number:
  US13/533,453
• Publication Number:
  US 20120277539A1
• Time in Patent Office: 987 Days
• Field of Search: 600/201, 600/203, 600206-210, 128/849, 128/856, 128/888, 128/889, 602/43, 602/50, 602/60.63
• US Class Current: 128/888
• CPC Class Codes: A61B 17/0206 with antagonistic arms as supports for retractor elements
• 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 17/3498 Valves therefor, e.g. flapper valves, slide valves haemostasis valves A61M39/06; check valves A61M39/24
• CPC Class Codes: A61B 2017/00889 antimicrobial, disinfectant
• CPC Class Codes: A61B 2017/00938 hydrophobic
• CPC Class Codes: A61B 2017/0225 flexible, e.g. fabrics, meshes, or membranes
• CPC Class Codes: A61B 2017/3419 Sealing means between cannula and body
• CPC Class Codes: A61B 2017/3435 using everted sleeves

Abstract

An incrementally adjustable wound retractor (500), having a first ring (504) with a diameter greater than the desired diameter of the wound incision, a flexible second ring (502), having a lumen and a diameter greater than the desired diameter of the wound incision, and a flexible sleeve (506), disposed in a generally cylindrical form between the first and second rings (502, 504), where the second ring may be rolled over itself to provide a sleeve with a radical retraction force sufficient to stretch the incision to the desired diameter.

Claims

1. An adjustable wound retractor adapted to dilate a surgical wound incision to a desired diameter, comprising:

a first ring having a diameter greater than the desired diameter of the wound incision and being adapted for disposition interiorly of the wound incision;

a second ring having a lumen and a diameter greater than the desired diameter of the wound incision and being adapted for disposition exteriorly of the wound incision;

a flexible sleeve disposed in a generally cylindrical form between the first ring and the second ring, wherein a distance between the first ring and the second ring is adjustable; and

a base disposed relative to the incision to securely receive the second ring, wherein a user may roll the second ring over itself, wrapping a portion of the flexible sleeve around the second ring, and secure second ring into the base to provide the sleeve with a radial retraction force sufficient to stretch the incision to the desired diameter.

2. The wound retractor of claim 1, further comprising a valve structure disposed relative to the incision to securely attach to the base.

3. The wound retractor of claim 2, wherein the base comprises a smooth generally cylindrical inner surface extending proximally to a rounded end surface and outwardly from the end surface along an annular lip, which is sized and configured to fit into the valve structure.

4. The wound retractor of claim 2, wherein the base comprises a smooth generally cylindrical inner surface, a rounded end surface, an annular lip, and an end surface having at least one toggle, which is sized and configured to fit the valve structure.

5. The wound retractor of claim 2, wherein the base comprises a smooth generally cylindrical inner surface, a rounded end surface, an annular lip, and an end surface having a raised wall sized and configured to fit the valve structure.

6. The wound retractor of claim 2, wherein the valve structure comprises a gel.

7. The wound retractor of claim 1, wherein the lumen of the second ring has a cross-section including circular, oval, circular with at least one lump, rectangular, triangular, and any geometric shape with multiple sides.

8. The wound retractor of claim 1, wherein the second ring is flexible.

9. The wound retractor of claim 1, wherein the base comprises a rounded end surface along its inner diameter for securing the second ring.