Surgical access system
First Claim
1. A surgical access system, comprising:
- a sheath retractor adapted to dilate a wound stretchable to a desired diameter, the sheath retractor disposed in a generally cylindrical form and operable to exert a radial retraction force on the wound; and
an iris seal removably coupled to the sheath retractor, the iris seal comprises;
a first iris ring;
a second iris ring coaxially attached to the first iris ring; and
a spring connected to and biasing the first and second iris rings;
an elastic member connected to the first and second iris rings and defining an opening,wherein the first and second iris rings operate to rotate relative to one another in either direction to open or close the opening of the elastic member, each of the iris rings comprises a plurality of interlocking tracks to allow the iris rings to be relatively rotated at predetermined angles.
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Accused Products
Abstract
The invention is directed to a surgical access system that provides access to a surgical area while maintaining pneumoperitoneum during laparoscopic surgery. The access system comprises a sheath retractor adapted to dilate a wound stretchable to a desired diameter and a detachable seal adapted to be removable from the sheath retractor. In another aspect, the detachable seal comprising a valve including a plurality of overlapping sheets defining an access channel that extends into communication with the incision in the patient. Each of the overlapping sheets includes a portion of the perimeter that is not fixed to the inner diameter of the ring, which provide open edges defining the access channel.
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Citations
18 Claims
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1. A surgical access system, comprising:
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a sheath retractor adapted to dilate a wound stretchable to a desired diameter, the sheath retractor disposed in a generally cylindrical form and operable to exert a radial retraction force on the wound; and an iris seal removably coupled to the sheath retractor, the iris seal comprises; a first iris ring; a second iris ring coaxially attached to the first iris ring; and a spring connected to and biasing the first and second iris rings; an elastic member connected to the first and second iris rings and defining an opening, wherein the first and second iris rings operate to rotate relative to one another in either direction to open or close the opening of the elastic member, each of the iris rings comprises a plurality of interlocking tracks to allow the iris rings to be relatively rotated at predetermined angles. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification