Surgical access system
First Claim
Patent Images
1. A surgical access device, comprising:
- a sealing valve for sealing across an incision in a patient, the sealing valve including at least a first sheet comprising an open edge, and a second sheet comprising an open edge;
a sheath retractor couplable to the sealing valve;
wherein the open edges of the first sheet and the second sheet are rotationally offset around an axial axis relative to each other;
wherein the first sheet and the second sheet are movable relative to one another between a first state forming a zero seal in the absence of an instrument and a second state forming an instrument seal in the presence of an instrument;
wherein in the first state, the open edge portions of the first sheet and the second sheet overlap each other; and
wherein the surgical access device is configured to be coupled to the sheath retractor.
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Abstract
A surgical access device adapted for disposition relative to an incision in a patient comprising a valve including a plurality of overlapping sheets defining an access channel, and a ring having an inner diameter for holding the valve by fixing each of the overlapping sheets along a portion of the perimeter is described. The access channel 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. The open edges slightly overlap at the center of the ring.
330 Citations
21 Claims
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1. A surgical access device, comprising:
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a sealing valve for sealing across an incision in a patient, the sealing valve including at least a first sheet comprising an open edge, and a second sheet comprising an open edge; a sheath retractor couplable to the sealing valve; wherein the open edges of the first sheet and the second sheet are rotationally offset around an axial axis relative to each other; wherein the first sheet and the second sheet are movable relative to one another between a first state forming a zero seal in the absence of an instrument and a second state forming an instrument seal in the presence of an instrument; wherein in the first state, the open edge portions of the first sheet and the second sheet overlap each other; and wherein the surgical access device is configured to be coupled to the sheath retractor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A surgical access device comprising:
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a sealing valve for sealing across an incision in a patient, the sealing valve including at least a first sheet comprising an open edge, and a second sheet comprising an open edge; wherein the open edges of the first sheet and the second sheet are rotationally offset around an axial axis relative to each other; wherein the first sheet and the second sheet are movable relative to one another between a first state forming a zero seal in the absence of an instrument and a second state forming an instrument seal in the presence of an instrument; and wherein in the first state, the open edge portions of the first sheet and the second sheet overlap each other; further comprising a ring, wherein; the first sheet comprises a perimeter, a portion of which is secured to the ring, and the second sheet comprises a perimeter, a portion of which is secured to the ring. - View Dependent Claims (18, 19)
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20. A surgical access device, comprising:
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a sealing valve for sealing across an incision in a patient, the sealing valve including at least a first sheet comprising an open edge, and a second sheet comprising an open edge; wherein the open edges of the first sheet and the second sheet are rotationally offset around an axial axis relative to each other; wherein the first sheet and the second sheet are movable relative to one another between a first state forming a zero seal in the absence of an instrument and a second state forming an instrument seal in the presence of an instrument; and wherein in the first state, the open edge portions of the first sheet and the second sheet overlap each other; further comprising a third sheet comprising an open edge and a fourth sheet comprising an open edge, wherein; the open edges of the third sheet and the fourth sheet are rotationally offset around an axial axis relative to each other; and wherein in the first state, the open edge portions of the third sheet and the fourth sheet overlap each other. - View Dependent Claims (21)
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Specification