BLOOD PERFUSION DEVICE DELIVERY SYSTEM
A delivery system deploys a prosthesis for open surgical repair of a body vessel. The system includes a sleeve to retain segments of a prosthesis in a compressed configuration and retraction members. The sleeve has outer segments associated with each end of the prosthesis. Retraction of the retraction members removes the outer segments of the sleeve from the prosthesis outer ends to allow for expansion of the outer ends of the prosthesis in an outside-in direction. The system can include a handle and an actuation member movably attached to the handle. The actuation member is coupled to the sleeve outer segments so that movement of the actuation member corresponds to removal of the sleeve. The system can include elements to retain the sleeve outer segments to the actuation member and to redirect the retraction members to a direction different from the axis of the prosthesis.
1 . A delivery system comprising:
a sleeve configured to retain segments of a prosthesis in a compressed configuration, the sleeve having a first outer segment and a second outer segment associated with a first outer end and a second outer end of the prosthesis, respectively; and
a first retraction member coupled to the first outer segment of the sleeve and a second retraction member coupled to the second outer segment of the sleeve,
wherein, in response to retraction of the first and second retraction members, the first and second outer segments of the sleeve are removed from the corresponding outer ends of the prosthesis to allow for expansion of the outer ends of the prosthesis in an outside-in direction.
2 . The system of claim 1 , wherein the sleeve is everted such that the first and second retraction members are gathered toward a middle of the sleeve.
3 . The system of claim 1 , wherein the first and second retraction members are independently retractable.
4 . The system of claim 1 , wherein the sleeve and the retractions members are formed integrally from a single tubular member.
5 . The system of claim 1 , wherein the sleeve comprises a first sleeve member associated with the first outer segment of the prosthesis and a second sleeve member associated with the second outer segment of the prosthesis.
6 . The system of claim 1 , wherein the sleeve comprises a single sleeve disposed over the entire prosthesis.
7 . The system of claim 1 , wherein each of the retraction members further comprises a first portion and a second portion separated by a split line.
8 . The system of claim 7 , wherein each of the first and second portions of the retraction member comprises an enlarged end.
9 . A delivery system comprising:
a handle;
an actuation member movably attached to the handle; and
an assembly disposed at a distal end of the handle, the assembly comprising a sleeve configured to retain segments of a prosthesis in a compressed configuration, the sleeve having a first outer segment and a second outer segment associated with a first outer end and a second outer end of the prosthesis, respectively, a first retraction member coupled between the first outer segment of the sleeve and the actuation member, and a second retraction member coupled between the second outer segment of the sleeve and the actuation member,
wherein in response to movement of the actuation member relative to the prosthesis from a first position to a second position, the first and second outer segments of the sleeve are removed from the corresponding outer ends of the prosthesis to allow for expansion of the outer ends of the prosthesis.
10 . The system of claim 9 , wherein each of the retraction members is coupled to the first outer segment of the sleeve at a first attachment point and to the actuation member at a second attachment point that is closer alignment with a middle of the prosthesis.
11 . The system of claim 9 , wherein the actuation member is movable along a translational axis that is different than a longitudinal axis of the prosthesis.
12 . The system of claim 11 , wherein the handle comprises a slot formed therein along the translational axis, and the actuation member comprises a lever slidably engaged within the slot of the handle.
13 . The system of claim 11 , wherein the handle comprises a guiding member to redirect the retraction members from a direction along the longitudinal axis to a different direction.
14 . The system of claim 9 , wherein the actuation member comprises a retaining member configured to removably attach with each of the retraction members.
15 . The system of claim 14 , wherein the retaining member comprises a member having a notch formed therein sized to receive a portion of the retraction members, the retraction members comprise an enlarged end sized larger than the notch.
16 . The system of claim 9 , wherein the handle comprises an edge configured to facilitate splitting of the sleeve, wherein a portion of the first and second retraction members is splittable so that the sleeve has a splitted configuration upon movement of each of the first and second retraction members together relative to the prosthesis.
17 . The system of claim 9 , wherein the handle comprises a distal tip having a concave curvature to contact the assembly.
18 . A method of open surgical repair of a body vessel, comprising:
inserting a first outer end of a prosthesis in a first vessel portion of a body vessel, wherein the first outer end of the prosthesis is retained in a compressed configuration with a sleeve portion;
inserting a second outer end of the prosthesis in a second vessel portion, wherein the second outer end of the prosthesis is retained in a compressed configuration with a sleeve portion; and
removing the corresponding sleeve portions from the respective first and second outer ends of the prosthesis, whereby the first and second outer ends of the prosthesis are allowed to move to an expanded configuration for engagement with the corresponding vessel portion of the body vessel.
19 . The method of claim 18 , wherein the sleeve portions are coupled to an actuation member movable along a translational axis that is different from a longitudinal axis of the prosthesis, where the removing step is performed by moving the actuation member along the translational axis from a first position to a second position.
20 . The method of claim 18 , wherein during the removing step the sleeve portions are dissolvable with application of an activation agent.