Stent device delivery system with an outer sheath polymeric reinforcement layer
First Claim
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1. A stent delivery system having a delivery configuration and a deployed configuration, the stent delivery system comprising:
- an inner catheter with a distal stent bed;
a retractable sheath overlaying the distal stent bed, the retractable sheath comprising;
a distal section comprising an inner portion laminated to an outer portion; and
a fold-over portion between the inner portion and the outer portion, the fold-over portion positioned distal of the distal stent bed in the delivery configuration and proximal of the distal stent bed in the deployed configuration; and
a substantially straight pull member configured to retract the retractable sheath, wherein a distal portion of the pull member extends into the distal section of the retractable sheath and is captured radially between the inner portion and the outer portion.
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Abstract
A stent device delivery system and method of making. The stent device delivery system includes a stent device and an outer sheath overlaying the stent device in a radially compact, delivery configuration of the stent device. The outer sheath may include a first layer of polymeric material and a reinforcement layer of polymeric material that are laminated together.
112 Citations
19 Claims
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1. A stent delivery system having a delivery configuration and a deployed configuration, the stent delivery system comprising:
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an inner catheter with a distal stent bed; a retractable sheath overlaying the distal stent bed, the retractable sheath comprising; a distal section comprising an inner portion laminated to an outer portion; and a fold-over portion between the inner portion and the outer portion, the fold-over portion positioned distal of the distal stent bed in the delivery configuration and proximal of the distal stent bed in the deployed configuration; and a substantially straight pull member configured to retract the retractable sheath, wherein a distal portion of the pull member extends into the distal section of the retractable sheath and is captured radially between the inner portion and the outer portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A stent delivery system having a delivery configuration and a deployed configuration, the stent delivery system comprising:
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an inner catheter comprising; a distal stent bed region; and a guide region proximal of the distal stent bed region, the guide region comprising an inner tube and a tubular sleeve overlaying the inner tube, wherein the inner tube includes a slit region having a plurality of axially distributed slits extending through a wall of the inner tube; a stent disposed on the distal stent bed region of the inner catheter; a retractable sheath overlaying the distal stent bed region, the retractable sheath comprising; a distal section comprising an inner portion laminated to an outer portion; and a fold-over portion between the inner portion and the outer portion, the fold-over portion positioned distal of the distal stent bed region in the delivery configuration and proximal of the distal stent bed region in the deployed configuration; and a substantially straight pull member configured to retract the retractable sheath, wherein a distal portion of the pull member extends into the distal section of the retractable sheath and is captured radially between the inner portion and the outer portion. - View Dependent Claims (10, 11, 12, 13)
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14. A stent delivery system having a delivery configuration and a deployed configuration, the stent delivery system comprising:
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an inner catheter comprising; a stent bed; and a guide portion coupled to a proximal end of the stent bed, the guide portion comprising; an inner tube including a plurality of axially distributed slits; and an outer sleeve covering plurality of the axially distributed slits; a retractable sheath formed from a single polymer tube, the retractable sheath including a folded region comprising a first section of the polymer tube laminated to a second section of the polymer tube, the folded region positioned over the stent bed in the delivery configuration and proximal of the stent bed in the deployed configuration; and a substantially straight pull member having a distal portion extending into the folded region and captured radially between the first section and the second section. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification