Apparatus and method for loading and delivering a stent
First Claim
1. An assembly for delivering a self-expanding stent into a body lumen comprising:
- a self-expanding stent;
a catheter adapted to deliver the self-expanding stent, the catheter having a stent delivery passage adapted to contain the self-expanding stent in an at least partially radially compressed state, the catheter comprising an inner member and an outer member slidably disposed about the inner member;
a stent transfer member communicating with a distal end of the outer member of the catheter, the stent transfer member having a first surrounding passage sized to circumferentially surround at least a portion of the self-expanding stent in an at least partially radially expanded state, the stent transfer member further including a tapered passage disposed between the first surrounding passage and the delivery passage to radially compress the self-expanding stent as the self-expanding stent moves from the first surrounding passage into the tapered passage;
a first handle in communication with the inner member of the catheter; and
a second handle in communication with the outer member of the catheter, the second member positioned distally of the first handle, wherein movement of the second handle relative to the first handle allows the inner member to slide relative to the outer member; and
a thread-like member for manipulating the self-expanding stent through at least the first surrounding passage, wherein the thread-like member has a central portion and two ends, wherein the central portion is woven into the self-expanding stent and the two ends are removably attached to the first handle.
2 Assignments
0 Petitions
Accused Products
Abstract
An assembly for delivering a self-expanding stent into a body lumen comprising a catheter adapted to deliver the self-expanding stent, the catheter having a stent delivery passage adapted to contain the stent in an at least partially radially compressed state, and a stent transfer member communicating with a distal end of the catheter, the stent transfer member having a cylindrical passage sized to circumferentially surround at least a portion of the stent in an at least partially radially expanded state, the stent transfer member further including a tapered passage disposed between the cylindrical passage and the delivery passage to radially compress the stent as the stent moves from the cylindrical passage into the tapered passage.
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Citations
18 Claims
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1. An assembly for delivering a self-expanding stent into a body lumen comprising:
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a self-expanding stent; a catheter adapted to deliver the self-expanding stent, the catheter having a stent delivery passage adapted to contain the self-expanding stent in an at least partially radially compressed state, the catheter comprising an inner member and an outer member slidably disposed about the inner member; a stent transfer member communicating with a distal end of the outer member of the catheter, the stent transfer member having a first surrounding passage sized to circumferentially surround at least a portion of the self-expanding stent in an at least partially radially expanded state, the stent transfer member further including a tapered passage disposed between the first surrounding passage and the delivery passage to radially compress the self-expanding stent as the self-expanding stent moves from the first surrounding passage into the tapered passage; a first handle in communication with the inner member of the catheter; and a second handle in communication with the outer member of the catheter, the second member positioned distally of the first handle, wherein movement of the second handle relative to the first handle allows the inner member to slide relative to the outer member; and a thread-like member for manipulating the self-expanding stent through at least the first surrounding passage, wherein the thread-like member has a central portion and two ends, wherein the central portion is woven into the self-expanding stent and the two ends are removably attached to the first handle. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An assembly for delivering a stent into a body lumen comprising:
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a stent; a delivery catheter for delivering the stent, the catheter comprising an inner member and an outer member slidably disposed about the inner member; a transfer member removably engagable with a distal end of the delivery catheter, the transfer member having a passage for compressing the stent from an at least partially radially expanded state to an at least partially radially compressed state when the stent is moved through the passage and into at least a portion of the delivery catheter; a first handle in communication with the inner member;
of said delivery catheter;
said first handle comprising a first port protruding from a lateral surface of said handle and a second port protruding axially from said first handle;a second handle in communication with the outer member of the delivery catheter, the second member positioned distally of the first handle, wherein movement of the second handle relative to the first handle allows the inner member to slide relative to the outer member; and a link for manipulating the stent through the passage, the link adapted to directly couple the stent and at least one of said first port and second port. - View Dependent Claims (9)
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10. An assembly for loading and delivering a self-expanding stent into a body lumen comprising:
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a self-expanding stent having an unloaded state and a loaded state; a catheter adapted to deliver the self-expanding stent, the catheter having a stent delivery passage adapted to contain the self-expanding stent in an at least partially radially compressed state, the catheter comprising an inner member and an outer member slidably disposed about the inner member; a stent transfer member communicating with a distal end of the outer member of the catheter, the stent transfer member having a first surrounding passage sized to circumferentially surround at least a portion of the self-expanding stent in an at least partially radially expanded state, the stent transfer member further including a tapered passage disposed between the first surrounding passage and the delivery passage to radially compress the self-expanding stent as the self-expanding stent moves from the first surrounding passage into the tapered passage; a thread-like member for manipulating the stent through at least the first surrounding passage, wherein the thread-like member has a central portion and two ends, wherein the central portion is woven into the self-expanding stent and the two ends are removably attached to the inner member, wherein when the stent is in the unloaded state, the inner member is moved relative to the outer member, the self-expanding stent moves from the first surrounding passage through the tapered passage and into the stent delivery passage until the self-expanding stent is loaded into the catheter, wherein when the stent is in the loaded state, the thread-like member is detached from at least the inner member. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification