Wound retractor

• US 9,561,024 B2
• Filed: 02/04/2015
• Issued: 02/07/2017
• Est. Priority Date: 06/05/2002
• Status: Expired due to Term

• 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:
  US14/613,480
• Publication Number:
  US 20150150550A1
• Time in Patent Office: 734 Days
• Field of Search: 602 42- 54, 128/888, 128/889
• US Class Current: 1/1
• 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 hollow second ring adapted for disposition exteriorly of the wound incision, the ring having a cross-section and a diameter, wherein the diameter is greater than the desired diameter of the wound incision and the ring is hollow along the entire cross-section of the ring; and

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.

2. The wound retractor of claim 1, wherein the second ring comprises an annular axis around which the second ring is rotatable.

3. The wound retractor of claim 1, wherein the second ring is substantially circular.

4. The wound retractor of claim 1, wherein the second ring comprises a substantially circular cross-section.

5. The wound retractor of claim 1, wherein the second ring includes surfaces that are easy to grip and turn, allowing the user to roll the flexible ring over itself to provide the sleeve with a radial retraction force sufficient to stretch the incision to the desired diameter.

6. The wound retractor of claim 1, wherein the second ring comprises at least one curved chordal surface.

7. The wound retractor of claim 1, wherein the second ring has a generally prolate cross-section.

8. The wound retractor of claim 1, wherein the second ring has a generally oblate cross-section.

9. The wound retractor of claim 1, wherein the second ring further comprises at least one generally straight chordal surface.

10. 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.

11. The wound retractor of claim 1, wherein the second ring comprises two opposing curved chordal surfaces.

12. The wound retractor of claim 1, wherein the sleeve comprises a material impermeable to bacteria.

13. The wound retractor of claim 1, wherein the sleeve material is impermeable to fluids.

14. The wound retractor of claim 1, wherein the second ring may be rolled over itself to provide the sleeve with a radial retraction force sufficient to seal the sleeve against the edges of the wound incision.

15. 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 hollow second ring adapted for disposition exteriorly of the wound incision, the ring having a cross-section and a diameter, wherein the diameter is greater than the desired diameter of the wound incision and the ring is hollow along the entire cross-section of the ring; and

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, wherein the second ring comprises a cross-section comprising a longer axis and a shorter axis.

16. 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 hollow second ring adapted for disposition exteriorly of the wound incision, the ring having a cross-section and a diameter, wherein the diameter is greater than the desired diameter of the wound incision and the ring is hollow along the entire cross-section of the ring;

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 valve structure disposed relative to the incision to securely receive the second ring.

17. The wound retractor of claim 16, wherein the valve structure comprises a gel.