Wound retractor with gel cap

• US 9,101,354 B2
• Filed: 08/29/2012
• Issued: 08/11/2015
• Est. Priority Date: 10/14/2005
• Status: Active Grant

• Current Assignee: Applied Medical Resources Corporation (Applied Medical Corporation)
• Original Assignee: Applied Medical Resources Corporation (Applied Medical Corporation)
• Inventors: Albrecht, Jeremy J., Hart, Charles C., Brustad, John R., Johnson, Gary M., Ko, Jennifer T., Gadberry, Donald L.
• Primary Examiner(s): BATES, DAVID W
• Application Number:
  US13/598,218
• Publication Number:
  US 20120330105A1
• Time in Patent Office: 1,077 Days
• US Class Current: 1/1
• CPC Class Codes: A61B 17/02 for holding wounds open; Tractors specula A61B1/32 ; drainage appliances for wounds A61M27/00
• 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 17/3431 being collapsible, e.g. made of thin flexible material A61B17/3423 takes precedence
• CPC Class Codes: A61B 17/3439 with means for changing the inner diameter of the cannula, e.g. expandable A61B17/3423, A61B17/3431 take precedence; catheters A61M25/0662
• CPC Class Codes: A61B 17/3462 with means for changing the diameter or the orientation of the entrance port of the cannula, e.g. for use with different-sized instruments, reduction ports, adapter seals expandable cannulas A61B17/3417
• CPC Class Codes: A61B 17/3496 Protecting sleeves or inner probes; Retractable tips for protecting body piercing guide needles A61M25/0612
• 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 2017/00477 Coupling A61B2017/0046 takes precedence
• CPC Class Codes: A61B 2017/00526 Methods of manufacturing
• CPC Class Codes: A61B 2017/0225 flexible, e.g. fabrics, meshes, or membranes
• CPC Class Codes: A61B 2017/0287 with elastic retracting members connectable to a frame, e.g. hooked elastic wires
• CPC Class Codes: A61B 2017/3419 Sealing means between cannula and body
• CPC Class Codes: A61B 2017/347 Locking means, e.g. for locking instrument in cannula
• CPC Class Codes: A61B 2050/005 with a lid or cover
• CPC Class Codes: A61B 2050/0051 closable by rotation
• CPC Class Codes: A61B 90/40 Apparatus fixed or close to patients specially adapted for providing an aseptic surgical environment

Abstract

An incrementally adjustable wound retractor, which provides access to a body cavity, includes an inner ring having a diameter greater than the desired diameter of the wound incision, an outer ring having an annular axis and a diameter greater than the desired diameter of the wound incision, and a flexible sleeve disposed in a generally cylindrical form between the inner and outer rings. The outer ring includes first and second circular tubes spaced apart axially with each including a lumen having a rigid, noncompliant split hoop positioned therein. The outer ring may be rolled over itself and around the annular axis to retract the sleeve with sufficient force to stretch the incision to the desired diameter. A gel cap seal may be coupled to the outer ring outside of the biological body to seal the opening produced by the wound retractor between the body cavity and outside the body cavity.

Claims

1. A surgical access device comprising an adjustable wound retractor comprising:

a double tube outer ring having an annular axis, the double-tube outer ring including a first circular tube and a second circular tube, the outer ring positioned at an outer end of the wound retractor, each of the circular tubes including a lumen;

a flexible inner ring positioned at an inner end of the wound retractor;

a flexible, tubular sleeve comprising a first end coupled to the inner ring and a second end coupled to at least one of the circular tubes of the outer ring;

a first substantially noncompliant hoop positioned in the lumen of the first circular tube aligned axially with the annular axis; and

a second substantially noncompliant hoop positioned in the lumen of the second circular tube aligned axially with the annular axis,

wherein the wound retractor includes a longitudinal axis extending from the outer end to the inner end,

wherein the first circular tube and the second circular tube are separated axially along the longitudinal axis and are both axially aligned with the annular axis, and

wherein at least one of the first hoop and the second hoop comprises a split hoop having a single split through a cross-section of the hoop, the single split creating a first end and a second end which is free of the first end.

2. The surgical access device of claim 1, wherein the first and second ends of the split hoop substantially abut each other.

3. The surgical access device of claim 1, wherein the split hoop includes a space between the first and second ends.

4. The surgical access device of claim 1, wherein the space between the first and second ends of the split hoop is sufficient to substantially prevent the first and second ends of the split hoop from contacting each other when the split hoop contracts while rotating the outer ring about an axel.

5. The surgical access device of claim 1, wherein one of the first and second noncompliant hoops includes two or more splits through a cross-section of the hoop, the splits creating a plurality of hoop portions, each hoop portion including a first end and a second end.

6. The surgical access device of claim 5, wherein the two or more splits are substantially equally spaced about the circumference of the split hoop.

7. The surgical access device of claim 5, wherein at least one of the first and second ends of adjacent hoop portions substantially abut each other.

8. The surgical access device of claim 5, wherein the split hoop includes a space between the first and second ends of adjacent hoop portions.

9. The surgical access device of claim 1, further comprising a cap couplable to at least one of the circular tubes of the outer ring.

10. The surgical access device of claim 9, wherein the cap comprises a cap ring couplable to the outer ring, and a gel pad, wherein at least a portion of the gel pad is disposed within the cap ring.

11. The surgical access device of claim 10, wherein the gel pad comprises an access portion extending therethrough, wherein the access portion defines an instrument seal with an instrument extending therethrough.

12. A surgical access device comprising an adjustable wound retractor comprising:

an outer ring having an annular axis, the outer ring including a first lumen and a second lumen, the outer ring positioned at an outer end of the wound retractor;

a flexible inner ring positioned at an inner end of the wound retractor;

a flexible, tubular sleeve comprising a first end coupled to the inner ring and a second end coupled to the outer ring; and

a first substantially noncompliant hoop positioned in the first lumen, the hoop including a split through a cross-section of the hoop, the split creating a first end and a second end which is free of the first end,

wherein the wound retractor has a longitudinal axis extending from the outer end to the inner end,

wherein the hoop is axially aligned with the annular axis, and

wherein the first lumen is axially separated from the second lumen along the longitudinal axis and both lumens are axially aligned with the annular axis.

13. The surgical access device of claim 12, further comprising a second substantially noncompliant hoop positioned in the second lumen.

14. The surgical access device of claim 12, wherein the first and second ends of the split hoop substantially abut each other.

15. The surgical access device of claim 12, wherein the split hoop includes a space between the first and second ends.

16. The surgical access device of claim 13, wherein one of the first and second noncompliant hoops includes two or more splits through a cross-section of the hoop of the hoop, the splits creating a plurality of hoop portions, each hoop portion including a first end and a second end.

17. The surgical access device of claim 16, wherein the two or more splits are substantially equally spaced about the circumference of the split hoop.

18. The surgical access device of claim 16, wherein the first and second ends of adjacent hoop portions substantially abut each other.

19. The surgical access device of claim 16, wherein the split hoop includes a space between the first and second ends of adjacent hoop portions.

20. The surgical access device of claim 12, wherein a cross section of the outer ring is oval.

21. The access device of claim 12, wherein a cross section of the outer ring comprises at least two straight chordal surfaces.

22. The access device of claim 12, wherein a cross section of the outer ring comprises at least two curved chordal surfaces.

23. The access device of claim 12, wherein each of the outer ring and the inner ring independently comprise at least one of an elastomer, a soft plastic, and rubber.

24. The access device of claim 12, wherein the hoop comprises at least one of a metal, a plastic, and a composite.

25. The access device of claim 12, further comprising a cap couplable to the outer ring.