Access port including rotatable seals
View Patent ↗A surgical access device includes a housing; an access member extending distally from the housing and being dimensioned for positioning within tissue, and defining a longitudinal axis; and a seal assembly disposed within the housing. The seal assembly includes first and second seal components respectively having first and second seal members. Each of the first and second seal members defines a passage for passage of a surgical object in substantial sealed relation therewith. The first and second seal components are capable of relative rotation about the longitudinal axis between a first position, in which passages of the first and second seal members are in substantial alignment, and a second position where the passages of the first and second seal members are offset to inhibit the communication of fluid through the seal assembly.
1. A surgical access device for use during a surgical procedure, which comprises:
a housing;
an access member extending distally from the housing and being dimensioned for positioning within tissue, the housing and the access member defining a longitudinal axis; and
a seal assembly disposed within the housing, the seal assembly including first and second seal components respectively having first and second seal members, each of the first and second seal members defining a passage for passage of a surgical object in substantial sealed relation therewith, the first and second seal components being capable of relative rotation within the housing and about the longitudinal axis between a first position, in which passages of the first and second seal members are in substantial alignment, and a second position where the passages of the first and second seal members are out of alignment to inhibit the communication of fluid through the seal assembly.
2. The surgical access device of claim 1 , wherein at least one of the first and second seal components is at least partially receivable within the other of the first and second seal components.
3. The surgical access device of claim 1 , wherein the seal members are configured as multi-slit valves.
4. The surgical access device of claim 1 , wherein the first seal component includes a first base member and a first cap extending proximally therefrom, and the second seal component includes a second base member and a second cap extending proximally therefrom.
5. The surgical access device of claim 4 , wherein the first cap defines a transverse dimension that is smaller than a transverse dimension of the first base member, and the second cap defines a transverse dimension that is smaller than a transverse dimension of the second base member.
6. The surgical access device of claim 5 , wherein the first base member defines an internal cavity configured and dimensioned to receive the second cap.
7. The surgical access device of claim 1 , including detent means for releasably securing the first and second seal components in either of the first and second positions.
8. The surgical access device of claim 7 , wherein the first seal component includes at least one detent configured and dimensioned for positioning within at least one recess on the second seal component.
9. The surgical access device of claim 1 , wherein the seal assembly includes at least one bearing to facilitate relative rotation between the first and second seal components.