Stent delivery system
First Claim
Patent Images
1. A stent delivery system, comprising:
- a first tubular member having a distal end sized and shaped to receive a stent;
a second tubular member longitudinally slidable over said first tubular member;
a third tubular member at least partially disposed over said second tubular member, said third tubular member rotatable relative to said first tubular member and to said second tubular member, a disc member provided near the proximal end of the third tubular member; and
a handle body defining a cavity in which the disc member of said third tubular member is positioned to permit free rotation of the third tubular member relative to the handle body and said second tubular member when in use for stent delivery, the handle body coupled to said second tubular member to retract said second tubular member relative to said first tubular member, wherein the handle body includes at least three different controls for retracting said second tubular member relative to said first tubular member, each of the at least three different controls configured to provide the user with a different retraction ratio.
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Accused Products
Abstract
One preferred embodiment includes a stent delivery system including a retractable sheath and an outer stability sheath. The stability sheath freely rotates relative to the retractable sheath, relieving compression forces caused by twisting of stability sheath in when in a tortuous conformation.
459 Citations
16 Claims
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1. A stent delivery system, comprising:
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a first tubular member having a distal end sized and shaped to receive a stent; a second tubular member longitudinally slidable over said first tubular member; a third tubular member at least partially disposed over said second tubular member, said third tubular member rotatable relative to said first tubular member and to said second tubular member, a disc member provided near the proximal end of the third tubular member; and a handle body defining a cavity in which the disc member of said third tubular member is positioned to permit free rotation of the third tubular member relative to the handle body and said second tubular member when in use for stent delivery, the handle body coupled to said second tubular member to retract said second tubular member relative to said first tubular member, wherein the handle body includes at least three different controls for retracting said second tubular member relative to said first tubular member, each of the at least three different controls configured to provide the user with a different retraction ratio. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A stent delivery system, comprising:
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a first tubular member having a distal end sized and shaped to receive a stent; a second tubular member longitudinally slidable over said first tubular member; a stability sheath at least partially disposed over said second tubular member, said stability sheath including a plurality of circumferential crumple zones, each crumple zone longitudinally compressible relative to said first tubular member and to said second tubular member; a strain relief member at least partially disposed over the stability sheath at a location proximal the plurality of crumple zones; and a handle body coupled to said second tubular member to retract said second tubular member relative to said first tubular member, wherein the handle body includes at least three different controls for retracting said second tubular member relative to said first tubular member, each of the at least three different controls configured to provide the user with a different retraction ratio. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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Specification