Wound retractor
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.
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.