Wound retractor

• US 10,507,017 B2
• Filed: 12/19/2016
• Issued: 12/17/2019
• 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): Philogene, Pedro
• Application Number:
  US15/383,803
• Publication Number:
  US 20170095244A1
• Time in Patent Office: 1,093 Days
• Field of Search: 600235, 600201, 600203, 600206-210, 602 42- 54, 602 60, 602 63, 602 75, 602 90, 128849, 128856, 128888, 128889
• 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 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, a distal end of the sleeve attached to the first ring and a proximal end of the sleeve attached to the second ring, wherein a distance between the first ring and the second ring is adjustable;

a ring-shaped base comprising a smooth, generally cylindrical surface disposed around the base to form a curved channel, wherein the smooth generally cylindrical surface extends proximally to a first rounded end surface and distally to a second rounded end surface, and wherein the channel is adapted to receive the second ring and thereby attach the base to the second ring and;

at least one toggle, wherein the toggle extends proximally from the second rounded end surface.

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 valve structure comprises a gel.

4. The wound retractor of claim 1, wherein the smooth generally cylindrical surface extends outwardly from the first rounded end surface along an annular lip.

5. The wound retractor of claim 1, wherein the toggle extends around the smooth generally cylindrical surface to form a raised wall.

6. The wound retractor of claim 1, wherein the second ring further comprises a lumen.

7. The wound retractor of claim 6, 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 solid.

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

10. The wound retractor of claim 1, wherein the second ring has a circular cross-section.

11. The wound retractor of claim 1, wherein the second ring has a non-circular cross-section.