Stent device delivery system with a varying radial profile pull member
First Claim
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1. A system comprising:
- an inner catheter having a tube coaxially within a tubular sleeve;
a stent device disposed about a distal end of the inner catheter distal of the tubular sleeve;
a longitudinally movable support tube disposed coaxially and radially outside of the tubular sleeve proximal of the stent device;
an outer sheath disposed coaxially and radially outside of the stent device in a cover position, the outer sheath including a first layer, a reinforcement layer, a glue layer disposed between the first layer and the reinforcement layer, and connected coaxially around the support tube using a heatshrink connection proximal to the stent device;
a guide sheath disposed coaxially around the support tube and the outer sheath; and
a pull member having a distal connecting end and a proximal pulling end, wherein the connecting end is disposed between the first layer and the reinforcement layer, at least a portion of the connecting end has a varying radial profile fully within the glue layer, andthe proximal end of the first layer or the reinforcement layer is proximate the support tube proximal end.
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Abstract
A stent device delivery system and method of making. The stent device delivery system includes a stent device, an outer sheath overlaying the stent device in a radially compact, delivery configuration of the stent device, and a pull member. The outer sheath may include a first layer and a reinforcement layer that are laminated together, a portion of the pull member captured radially between the first layer and the reinforcement layer. At least a partial length of the captured portion of the pull member may be formed with a varying radial profile.
116 Citations
21 Claims
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1. A system comprising:
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an inner catheter having a tube coaxially within a tubular sleeve; a stent device disposed about a distal end of the inner catheter distal of the tubular sleeve; a longitudinally movable support tube disposed coaxially and radially outside of the tubular sleeve proximal of the stent device; an outer sheath disposed coaxially and radially outside of the stent device in a cover position, the outer sheath including a first layer, a reinforcement layer, a glue layer disposed between the first layer and the reinforcement layer, and connected coaxially around the support tube using a heatshrink connection proximal to the stent device; a guide sheath disposed coaxially around the support tube and the outer sheath; and a pull member having a distal connecting end and a proximal pulling end, wherein the connecting end is disposed between the first layer and the reinforcement layer, at least a portion of the connecting end has a varying radial profile fully within the glue layer, and the proximal end of the first layer or the reinforcement layer is proximate the support tube proximal end. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification