Implant deployment apparatus
First Claim
1. A delivery system for temporarily restraining an expandable implant in a collapsed state for delivery to a deployment site, said system comprising a sheet of material adapted and configured for wrapping around an expandable implant to maintain said implant in a collapsed state during delivery through a mammalian body lumen, and a coupling member for coupling portions of the sheet to one another to maintain said implant in said collapsed state.
2 Assignments
0 Petitions
Accused Products
Abstract
A delivery system including a restraining member maintains a collapsed implant in its collapsed state for delivery through a small passageway to a desired site in a mammalian body. Once the implant is positioned at the desired site, the restraining member is released so that the stent may expand or be expanded to its expanded state. In a preferred embodiment, the restraining member comprises a sheet of material that surrounds at least a portion of the collapsed stent. Portions of the restraining member are releasably coupled to one another with a low profile thread-like member or suture.
110 Citations
47 Claims
- 1. A delivery system for temporarily restraining an expandable implant in a collapsed state for delivery to a deployment site, said system comprising a sheet of material adapted and configured for wrapping around an expandable implant to maintain said implant in a collapsed state during delivery through a mammalian body lumen, and a coupling member for coupling portions of the sheet to one another to maintain said implant in said collapsed state.
- 10. An assembly comprising a stent and a restraining member coupled to said stent, said stent having a collapsed and an expanded state, said restraining member comprising a sheet of material adapted to be wrapped around at least a portion of the stent when said stent is in said collapsed state, and portions of said sheet being adapted for coupling to one another to maintain said sheet wrapped around at least or portion of said stent in its collapsed state.
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35. An assembly comprising a stent and a sheet of material, said stent having a collapsed state and an expanded state, said stent being in said collapsed state and having said sheet of material wrapped around at least a portion thereof, said sheet having ends and marginal side portions extending between said ends, said marginal side portions being coupled to one another.
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39. An assembly comprising a stent and a restraining member coupled to said stent, said stent having a collapsed and an expanded state, said stent having first and second portions that move relative to one another when said stent moves between said collapsed and expanded states, said restraining member comprising a sheet of material adapted to be wrapped around at least a portion of the stent when said stent is in said collapsed state, and portions of said sheet being adapted for coupling to one another to maintain said sheet wrapped around at least or portion of said stent in its collapsed state, said assembly further including a member having a first portion coupled to said restraining member and a second portion coupled to one of said stent first and second portions.
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42. A method for delivering an expandable stent to a desired endolumenal site in a mammalian body comprising the steps of:
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(a) positioning an expandable stent which is restrained in a collapsed state by a restraining member in a lumen having a wall, (b) releasing said restraining member, and (c) urging said restraining member into a position against said wall. - View Dependent Claims (43)
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44. A method of preparing a stent for delivery to a desired site in a mammalian body comprising the steps of:
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restraining a collapsed stent in a sheet of material having side margins; and
coupling said side margins to each other. - View Dependent Claims (45, 47)
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46. A method for collapsing an expandable stent into a generally tubular restraining member comprising the steps of:
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(a) pulling an expandable stent through a tapered construct which radially collapses the stent, and (b) pulling the stent into a generally tubular restraining member.
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Specification