STENT DEVICE ADHESIVELY BONDED TO A STENT DEVICE PUSHER
First Claim
1. A stent device delivery system, comprisinga stent device pusher comprising protrusions with axially extending spaces therebetween;
- a radially self-expandable stent device comprising a lumen extending longitudinally therethrough;
an outer sheath, the stent device being constrained in a radially contracted state by the outer sheath so that the protrusions of the stent pusher engage an inner surface of the stent device at positions axially distributed along the stent device; and
a tacky material axially distributed along the stent device and providing a tackiness between the stent device pusher and the inner surface of the stent device, wherein the tackiness and the engagement of the protrusions with the inner surface of the stent device serve to resist axial movement of the stent device relative to the stent device pusher as the outer sheath slides axially over the stent device and the tacky material is such that it allows the stent device to peel from the tacky material and expand to a radially expanded state as the outer sheath slides axially over the stent device to release the stent device.
1 Assignment
0 Petitions
Accused Products
Abstract
A stent device delivery system, comprising a stent device pusher, a radially expandable stent device and an outer sheath. A tacky material provides a tackiness between the stent device pusher and an inner surface of the stent device. The tacky material is distributed along the length of the stent device. The tacky material serves to resist axial movement of the stent device relative to the stent device pusher as the outer sheath slides axially over the stent device, yet allows the stent device to peel from the tacky material and expand to a radially expanded state as the outer sheath slides axially over the stent device to release the stent device. The tacky material may be compressible such that the stent device is embedded in the compressible tacky material.
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Citations
18 Claims
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1. A stent device delivery system, comprising
a stent device pusher comprising protrusions with axially extending spaces therebetween; -
a radially self-expandable stent device comprising a lumen extending longitudinally therethrough; an outer sheath, the stent device being constrained in a radially contracted state by the outer sheath so that the protrusions of the stent pusher engage an inner surface of the stent device at positions axially distributed along the stent device; and a tacky material axially distributed along the stent device and providing a tackiness between the stent device pusher and the inner surface of the stent device, wherein the tackiness and the engagement of the protrusions with the inner surface of the stent device serve to resist axial movement of the stent device relative to the stent device pusher as the outer sheath slides axially over the stent device and the tacky material is such that it allows the stent device to peel from the tacky material and expand to a radially expanded state as the outer sheath slides axially over the stent device to release the stent device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A stent device delivery system, comprising:
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a stent device pusher comprising a compressible bed; a radially self-expandable stent device comprising a lumen extending longitudinally therethrough; an outer sheath, the stent device being constrained in a radially contracted state by the outer sheath, the stent device being embedded in the compressible bed so that portions of the compressible bed protrude radially into the stent device at positions axially distributed along the stent device; and a tacky material axially distributed along the stent device providing tackiness between the stent device pusher and an inner surface of the stent device, wherein the tackiness and the protruding portions of the compressible bed serve to resist axial movement of the stent device relative to the stent device pusher as the outer sheath slides axially over the stent device and the tacky material is such that it allows the stent device to peel from the tacky material and expand to a radially expanded state as the outer sheath slides axially over the stent device to release the stent device - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A method of loading a stent device into an outer sheath of a stent device delivery system, comprising:
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providing a radially self-expandable stent device having a lumen extending longitudinally therethrough; providing a stent device pusher comprising protrusions with axially extending spaces between them, an adhesive material distributed along the stent device pusher providing a tackiness between the inner surface of the stent device and the stent device pusher, wherein the tackiness and the engagement of the protrusions with the inner surface of the stent device serves to resist axial movement of the stent device relative to the stent device pusher as an outer sheath slides over the stent device, and the tacky material is such that it allows the stent device to peel from the tacky material to expand to a radially expanded state when the outer sheath is retracted and the stent device is thereby released; and inserting the stent device mounted to the stent device pusher into the outer sheath of the stent device delivery system so that the stent device is constrained within the outer sheath and an inner surface of the stent device engages the protrusions at positions distributed axially along the stent device. - View Dependent Claims (18)
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Specification