Wound retractor

• US 8,235,054 B2
• Filed: 02/22/2011
• Issued: 08/07/2012
• Est. Priority Date: 06/05/2002
• Status: Active Grant

• 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:
  US13/031,892
• Publication Number:
  US 20110144446A1
• Time in Patent Office: 532 Days
• Field of Search: 128/845, 128/846, 128/888, 128/889, 602 42- 43, 602/50, 602/63, 602/75
• 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 (100), having a first ring (102) with a diameter greater than the desired diameter of the wound incision. A second ring (104), having an annular axis and a diameter greater than the desired diameter of the wound incision. A flexible sleeve (106), disposed in a generally cylindrical form between the first and second rings (102, 104), the second ring may be rolled over itself and around the annular axis 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 having a tubing wall and a diameter greater than the desired diameter of the wound incision and being adapted for disposition exteriorly of the wound incision;

a rod disposed inside the lumen, and

a flexible sleeve disposed in a generally cylindrical form between the first ring and the second ring.

2. The wound retractor of claim 1, wherein the rod is a stainless steel wire.

3. The wound retractor of claim 1, further comprising a valve structure disposed relative to the incision to securely receive the second ring.

4. The wound retractor of claim 3, wherein the valve structure comprises a gel cap and an abdominal base.

5. 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, the second ring having a lumen and a rod disposed within the lumen; and

a flexible sleeve disposed in a generally cylindrical form between the first ring and the second ring;

wherein the second ring includes surfaces that are easy to grip and turn, allowing the user to roll the ring over itself to provide the sleeve with a radial retraction force sufficient to stretch the incision to the desired diameter.

6. The wound protector of claim 5, wherein the second ring comprises at least one curved chordal surface.

7. The wound retractor of claim 6, wherein the second ring further comprises at least one generally straight chordal surface.

8. The wound retractor of claim 5, wherein the second ring has a generally prolate cross-section.

9. The wound retractor of claim 5, wherein the second ring has a generally oblate cross-section.

10. The wound retractor of claim 5, 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.

11. The wound retractor of claim 5, wherein the second ring comprises two opposing curved chordal surfaces.

12. The wound retractor of claim 5, wherein the rod is a stainless steel wire.

13. The wound retractor of claim 5, wherein the rod has a cross-section including solid rectangular, hollow rectangular, solid circular, hollow circular, and any solid or hollow geometric shape.

14. An adjustable wound protector adapted to protect a surgical wound incision, 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 and a diameter greater than the desired diameter of the wound incision and being adapted for disposition exteriorly of the wound incision, the second ring having a lumen and a rod disposed within the lumen; and

a flexible sleeve disposed in a generally cylindrical form between the first ring and the second ring, wherein the sleeve comprises a material impermeable to bacteria.

15. The wound protector of claim 14, wherein the sleeve material is impermeable to fluids.

16. The wound protector of claims 14, wherein the second ring may be rolled over itself to provide the sleeve with a radial retraction force sufficient to seal the protector against the edges of the wound incision.

17. The wound protector of claim 14, wherein the lumen has a fan-like shape cross-section.

18. The wound protector of claim 17, wherein the rod has a fan-like cross-section and is coaxially placed inside the lumen to serve as an incremental rotating mechanism of the wound retractor.

19. The wound protector of claim 14, wherein each of the tubing wall and the rod includes a plurality of alignment points that operate to index and match each other as the second ring is rolled out of and into alignment with respect to the rod.

20. The wound protector of claim 14, wherein each of the tubing wall and the rod includes at least one alignment point providing indexing and incremental rotation of the second ring.