Expandable body cavity liner device
First Claim
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1. An aneurysm liner for treating an aneurysm in a parent vessel, the aneurysm liner comprising:
- a liner sac made of an inelastic material having a sac and folded or pleated expansion zones, the sac, under ambient external pressure being expandable to a first peripheral dimension under influence of a first internal pressure and the expansion zones being expandable to a second, larger peripheral dimension, under influence of a second internal pressure greater than the first internal pressure.
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Abstract
The present invention is an aneurysm treatment device for treating aneurysms of various shapes and sizes.
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Citations
36 Claims
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1. An aneurysm liner for treating an aneurysm in a parent vessel, the aneurysm liner comprising:
a liner sac made of an inelastic material having a sac and folded or pleated expansion zones, the sac, under ambient external pressure being expandable to a first peripheral dimension under influence of a first internal pressure and the expansion zones being expandable to a second, larger peripheral dimension, under influence of a second internal pressure greater than the first internal pressure. - View Dependent Claims (2, 3, 4, 5)
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6. An aneurysm liner, comprising:
a structure having a proximal portion and a distal portion, the proximal portion and distal portion being configured to preferentially permeate embolics introduced therein through the distal portion. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13)
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14. An aneurysm treatment device, comprising:
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an expandable liner sac; and
a retaining member within the liner sac, the retaining member releasably retaining therein a retained portion of the liner sac under a first internal pressure within the liner sac and releasing at least part of the retained portion under a second internal pressure, higher than the first pressure. - View Dependent Claims (15, 16, 17, 18)
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19. An aneurysm treatment device, comprising:
a sac configured to receive internal pressure therein and to increase a radial dimension thereof and decrease an axial dimension thereof with increases in the internal pressure. - View Dependent Claims (20, 21, 22, 23)
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24. An aneurysm treatment device, comprising:
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an elongate delivery member; and
a liner formed of shape memory polymer material. - View Dependent Claims (25, 26, 27, 28)
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29. An aneurysm treatment device, comprising:
an expandable liner having a medial portion formed of a fabric material and proximal and distal portions formed of a thin material relative to the fabric material in the medial portion. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36)
Specification