Circular surgical retractor

• US 7,704,207 B2
• Filed: 10/12/2006
• Issued: 04/27/2010
• 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., Brustad, John R., Hart, Charles C
• Primary Examiner(s): Robert; Eduardo C
• Assistant Examiner(s): NEGRELLI, CHRISTINA L
• Application Number:
  US11/548,767
• Publication Number:
  US 20070088202A1
• Time in Patent Office: 1,293 Days
• Field of Search: 606206-208, 600201-246
• US Class Current: 600/208
• 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

A wound retractor for retracting a surgical incision includes an inner ring, an outer ring and a distensible sleeve coupled to the inner and outer rings. The outer ring includes at least a pair of circular tubes coupled to each other. At least one of the circular tubes includes a lumen and a split that forms open ends. A noncompliant tubular hoop having a split therein is positioned in the lumen. The tubular hoop is oriented with its open ends positioned away from the split of the circular tubes. A core is positioned in the lumen of the tubular hoop. The core has a first end and a second end and is oriented with the ends positioned away from the split in the tubular hoop. The circular tubes may be parallel or may form a helical pattern similar to a Mobius strip.

Claims

1. An adjustable wound retractor adapted to retract a surgical incision in a body wall to a desired diameter, comprising:

a first, inner ring adapted to be inserted into the incision and to be juxtaposed with an inner surface of the body wall;

a second, outer ring adapted for juxtaposition with an outer surface of the body wall, the outer ring including,

a first substantially circular tube having a first lumen, the first circular tube being made of a flexible material,

a second substantially circular tube spaced axially from the first circular tube and coupled to the first circular tube of the outer ring, the second circular tube having a second lumen, the second circular tube being made of a flexible material,

a first rigid, noncompliant tubular hoop having a split therein, the split forming open ends of the first tubular hoop, the first tubular hoop being positioned in the first lumen of the first circular tube of the outer ring,

a second rigid, noncompliant tubular hoop having a split therein, the split forming open ends of the second tubular hoop, the second tubular hoop being positioned in the second lumen of the second circular tube of the outer ring,

a first core positioned in the lumen of the first tubular hoop, the first core having a first end and a second end, the first core being oriented with the first and second ends of the first core positioned away from the split in the first tubular hoop, and

a second core positioned in the lumen of the second tubular hoop, the second core having a first end and a second end, the second core being oriented with the first and second ends of the second core positioned away from the split in the second tubular hoop; and

a distensible sleeve, the sleeve including a first, distal end and a second, proximal end, the first, distal end of the sleeve being coupled to the inner ring of the wound retractor and the second proximal end of the sleeve being coupled to the outer ring of the wound retractor,

wherein, the outer ring of the wound retractor being substantially rigid and noncompliant.

2. The wound retractor of claim 1, at least one of the first and second cores including a substantially rigid, noncompliant wire.

3. The wound retractor of claim 1, at least one of the first and second cores including a cable.

4. The wound retractor of claim 1, the first circular tube being coupled to the second circular tube through a substantially thin mid-section.

5. The wound retractor of claim 1, the sleeve being made from a thin film.

6. The wound retractor of claim 1, the first and second substantially circular tubes of the outer ring being made of an elastomeric material.

7. The wound retractor of claim 6, the first and second substantially circular tubes being made of a plastic material.

8. The wound retractor of claim 6, the first and second substantially circular tubes being made of a rubber material.

9. The wound retractor of claim 1, wherein:

the first and second ends of the first core being positioned substantially opposite the first and second ends of the first tubular hoop; and

the first and second ends of the second core being positioned substantially opposite the first and second ends of the second tubular hoop.

10. The wound retractor of claim 1, each of the combinations of the first tubular hoop with the first core and the second tubular hoop with the second core functioning as an axle about which the outer ring may turn for half a rotation.

11. The wound retractor of claim 10, wherein:

the first circular tube of the outer ring of the wound retractor being adapted to be rolled outside the second circular tube of the outer ring with the circumference of the first split tubular hoop in the first circular tube expanding to clear the second split tubular hoop in the second circular tube of the outer ring; and

the second circular tube of the outer ring of the wound retractor being adapted to be rolled outside the first circular tube of the outer ring with the circumference of the second split tubular hoop in the second circular tube expanding to clear the first split tubular hoop in the first circular tube of the outer ring.

12. The wound retractor of claim 1, wherein:

at least one of the first and second tubular hoops being made of a metallic material; and

at least one of the first and second cores being made of a metallic material.

13. The wound retractor of claim 1, wherein:

at least one of the first and second tubular hoops being made of a composite material; and

at least one of the first and second cores being made of a metallic material.

14. The wound retractor of claim 1, wherein:

at least one of the first and second tubular hoops being made of a metallic material; and

at least one of the first and second cores being made of a composite material.

15. The wound retractor of claim 1, wherein:

at least one of the first and second tubular hoops being made of a composite material; and

at least one of the first and second cores being made of a composite material.

16. The wound retractor of claim 1, the first and second substantially circular tubes being substantially parallel to each other.

17. The wound retractor of claim 1, the first and second substantially circular tubes forming a helical pattern.

18. An adjustable wound retractor adapted to retract a surgical incision in a body wall to a desired diameter, comprising:

a first, inner ring adapted to be inserted into the incision and to be juxtaposed with an inner surface of the body wall;

a second, outer ring adapted for juxtaposition with an outer surface of the body wall, the outer ring including,

a first substantially circular tube having a first lumen and a split forming a first end and a second end, the first circular tube being made of an elastomeric material,

a second substantially circular tube spaced axially from the first circular tube and coupled to the first circular tube of the outer ring through a substantially thin mid-section, the second circular tube having a second lumen and a split forming a first end and a second end, the second circular tube being made of an elastomeric material,

a first rigid, noncompliant tubular hoop having a split therein, the split forming open ends of the first tubular hoop, the first tubular hoop being positioned in the first lumen of the first circular tube of the outer ring, the first tubular hoop being oriented with the open ends of the first tubular hoop positioned away from the first and second ends of the first circular tube,

a second rigid, noncompliant tubular hoop having a split therein, the split forming open ends of the second tubular hoop, the second tubular hoop being positioned in the second lumen of the second circular tube of the outer ring, the second tubular hoop being oriented with the open ends of the second tubular hoop positioned away from the first and second ends of the second circular tube,

a first core positioned in the lumen of the first tubular hoop, the first core having a first end and a second end, the first core being oriented with the first and second ends of the first core positioned away from the split in the first tubular hoop, and

a second core positioned in the lumen of the second tubular hoop, the second core having a first end and a second end, the second core being oriented with the first and second ends of the second core positioned away from the split in the second tubular hoop; and

a distensible sleeve, the sleeve being made from a thin film, the sleeve including a first, distal end and a second, proximal end, the first, distal end of the sleeve being coupled to the inner ring of the wound retractor and the second proximal end of the sleeve being coupled to the outer ring of the wound retractor,

wherein, the outer ring of the wound retractor being substantially rigid and noncompliant,

each of the combinations of the first tubular hoop with the first core and the second tubular hoop with the second core functioning as an axle about which the outer ring may turn for half a rotation,

the first circular tube of the outer ring of the wound retractor being adapted to be roiled outside the second circular tube of the outer ring with the circumference of the first split tubular hoop in the first circular tube of the outer ring expanding to clear the second split tubular hoop in the second circular tube of the outer ring; and

the second circular tube of the outer ring of the wound retractor being adapted to be rolled outside the first circular tube of the outer ring with the circumference of the second split tubular hoop in the second circular tube of the outer ring expanding to clear the first split tubular hoop in the first circular tube of the outer ring.

19. The wound retractor of claim 18, at least one of the first and second cores including a substantially rigid, noncompliant wire.

20. The wound retractor of claim 18, at least one of the first and second cores including a cable.

21. The wound retractor of claim 18, the first and second substantially circular tubes being made of a plastic material.

22. The wound retractor of claim 18, the first and second substantially circular tubes being made of a rubber material.

23. The wound retractor of claim 18, wherein:

the open ends of the first tubular hoop being positioned substantially opposite the first and second ends of the first circular tube; and

the open ends of the second tubular hoop being positioned substantially opposite the first and second ends of the second circular tube.

24. The wound retractor of claim 18, wherein:

the first and second ends of the first core being positioned substantially opposite the first and second ends of the first tubular hoop; and

the first and second ends of the second core being positioned substantially opposite the first and second ends of the second tubular hoop.

25. The wound retractor of claim 18, wherein:

at least one of the first and second tubular hoops being made of a metallic material; and

at least one of the first and second cores being made of a metallic material.

26. The wound retractor of claim 18, wherein:

at least one of the first and second tubular hoops being made of a composite material; and

at least one of the first and second cores being made of a metallic material.

27. The wound retractor of claim 18, wherein:

at least one of the first and second tubular hoops being made of a metallic material; and

at least one of the first and second cores being made of a composite material.

28. The wound retractor of claim 18, wherein:

at least one of the first and second tubular hoops being made of a composite material; and

at least one of the first and second cores being made of a composite material.

29. The wound retractor of claim 18, the first and second substantially circular tubes being substantially parallel to each other.

30. The wound retractor of claim 18, the first and second substantially circular tubes forming a helical pattern.

31. An adjustable wound retractor adapted to retract a surgical incision in a body wall to a desired diameter, comprising:

a first, inner ring adapted to be inserted into the incision and to be juxtaposed with an inner surface of the body wall;

a second, outer ring adapted for juxtaposition with an outer surface of the body wall, the outer ring including,

a first substantially circular tube having a first lumen, the first circular tube being made of a flexible material,

a second substantially circular tube spaced axially from the first circular tube and coupled to the first circular tube of the outer ring, the second circular tube having a second lumen, the second circular tube being made of a flexible material,

a first rigid, noncompliant tubular hoop having a split therein, the split forming open ends of the first tubular hoop, the first tubular hoop being positioned in the first lumen of the first circular tube of the outer ring,

a second rigid, noncompliant tubular hoop having a split therein, the split forming open ends of the second tubular hoop, the second tubular hoop being positioned in the second lumen of the second circular tube of the outer ring,

a first core positioned in the lumen of the first tubular hoop, and

a second core positioned in the lumen of the second tubular hoop; and

a distensible sleeve, the sleeve including a first, distal end and a second, proximal end, the first, distal end of the sleeve being coupled to the inner ring of the wound retractor and the second, proximal end of the sleeve being coupled to the outer ring of the wound retractor,

wherein, the outer ring of the wound retractor being substantially rigid and noncompliant.

32. The wound retractor of claim 31, at least one of the first and second cores including a substantially rigid, noncompliant wire.

33. The wound retractor of claim 31, at least one of the first and second cores including a cable.

34. The wound retractor of claim 31, the first circular tube being coupled to the second circular tube through a substantially thin mid-section.

35. The wound retractor of claim 31, the first and second substantially circular tubes of the outer ring being made of an elastomeric material.

36. The wound retractor of claim 31, wherein:

the first core having a first end and a second end, the first core being oriented with the first and second ends of the first core positioned away from the split in the first tubular hoop; and

the second core having a first end and a second end, the second core being oriented with the first and second ends of the second core positioned away from the split in the second tubular hoop.

37. The wound retractor of claim 31, each of the combinations of the first tubular hoop with the first core and the second tubular hoop with the second core functioning as an axle about which the outer ring may turn for half a rotation.

38. The wound retractor of claim 37, wherein:

the first circular tube of the outer ring of the wound retractor being adapted to be rolled outside the second circular tube of the outer ring with the circumference of the first split tubular hoop in the first circular tube expanding to clear the second split tubular hoop in the second circular tube of the outer ring; and

the second circular tube of the outer ring of the wound retractor being adapted to be rolled outside the first circular tube of the outer ring with the circumference of the second split tubular hoop in the second circular tube expanding to clear the first split tubular hoop in the first circular tube of the outer ring.

39. The wound retractor of claim 31, the first and second substantially circular tubes being substantially parallel to each other.

40. The wound retractor of claim 31, the first and second substantially circular tubes forming a helical pattern.