Apparatus and methods for positioning prostheses for deployment from a catheter
First Claim
Patent Images
1. Apparatus for delivering a prosthesis into a target vessel comprising:
- a flexible catheter shaft having a proximal end and a distal end;
an expandable member coupled with the catheter shaft near the distal end movable from a contracted configuration to an expanded configuration;
a tubular prosthesis selectively movable in an axial direction over the expandable member; and
a stop member axially fixed relative to the member and disposed near the distal end for stopping the prosthesis at a deployment position on the expandable member, the tubular prosthesis being axially movable in a distal direction up to but not distally of the stop member.
2 Assignments
0 Petitions
Accused Products
Abstract
Apparatus for delivering stents to body lumens include a flexible catheter shaft, an expandable member, a tubular prosthesis selectively movable in an axial direction over the expandable member, and a stop member disposed on the catheter shaft near the distal end of the catheter shaft for stopping the prosthesis at a deployment position on the expandable member. A variety of different stop members are provided according to various embodiments, such as stop members disposed outside the expandable member, stop members disposed inside the expandable member, movable stop members, and the like. Methods of delivering stents are also provided.
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Citations
96 Claims
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1. Apparatus for delivering a prosthesis into a target vessel comprising:
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a flexible catheter shaft having a proximal end and a distal end; an expandable member coupled with the catheter shaft near the distal end movable from a contracted configuration to an expanded configuration; a tubular prosthesis selectively movable in an axial direction over the expandable member; and a stop member axially fixed relative to the member and disposed near the distal end for stopping the prosthesis at a deployment position on the expandable member, the tubular prosthesis being axially movable in a distal direction up to but not distally of the stop member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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40. Apparatus for delivering a prosthesis into a target vessel comprising:
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a flexible catheter shaft having a proximal end and a distal end; a plurality of separate tubular prostheses directly adjacent to each other and slidably disposed over the catheter shaft; a sheath disposed over the catheter shaft and the tubular prostheses and being axially movable relative thereto; and a stop member coupled with the catheter shaft near the distal end for stopping at least one of the tubular prostheses at a deployment position along the catheter shaft, the tubular prostheses being axially movable in a distal direction up to but not distally of the stop member. - View Dependent Claims (41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63)
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64. Apparatus for delivering a prosthesis into a target vessel comprising:
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a flexible catheter shaft having a proximal end, a distal end and at least one lumen; an expandable member coupled with the catheter shaft near the distal end, the expandable member having a deployment portion and a tapered portion tapering distally from the deployment portion; a tubular prosthesis slidably disposed over the catheter shaft and axially slidable over the expandable member; a sheath slidably disposed over the expandable member and the tubular prosthesis and being axially movable relative thereto; and an actuator for moving the expandable member a set distance relative to the sheath from a retracted position in which the tubular prosthesis is over the tapered portion to an extended position in which the tubular prosthesis is disposed over and in contact with the deployment portion. - View Dependent Claims (65, 66)
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67. A method of delivering a prosthesis in a target vessel of a patient comprising:
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advancing a tubular prosthesis along a delivery catheter having an expandable member; stopping the prosthesis at a deployment location on the expandable member with a stop member, the stop member being axially fixed relative to the expandable member; and expanding the expandable member to expand at least part of the tubular prosthesis into engagement with the target vessel. - View Dependent Claims (68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79)
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80. A method of delivering a prosthesis in a target vessel of a patient comprising:
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advancing a plurality of prostheses along a delivery catheter having an expandable member;
andstopping a first selected number of the prostheses at a deployment location on the delivery catheter with a stop member thereon, the stop member being axially fixed relative to the expandable;
andexpanding the expandable member to expand the first selected number of prostheses into engagement with the target vessel. - View Dependent Claims (81, 82, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94)
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83. A method of delivering a prosthesis in a target vessel of a patient comprising:
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advancing a plurality of prostheses along a delivery catheter, wherein advancing the plurality of prostheses comprises positioning a first selected number of the prostheses on an expandable member for expansion therewith; stopping the first selected number of the prostheses at a deployment location on the delivery catheter with a stop member thereon; positioning a sheath of the delivery catheter to expose the first selected number of prostheses and to constrain expansion of a second selected number of the prostheses; covering a proximal portion of the expandable member by the sheath to constrain the proximal portion from expansion while a distal portion of the expandable member expands; and expanding the first selected number of prostheses into engagement with the target vessel.
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95. Apparatus for delivering a prosthesis into a target vessel comprising:
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a flexible catheter shaft having a proximal end and a distal end; an expandable member coupled with the catheter shaft near the distal end movable from a contracted configuration to an expanded configuration and wherein at least a portion of the expandable member is covered by an outer sheath; a tubular prosthesis selectively movable in an axial direction over and in contact with the expandable member; and a stop member disposed on the catheter shaft near the distal end for stopping the prosthesis at a deployment position on the expandable member.
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96. Apparatus for delivering a prosthesis into a target vessel comprising:
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a flexible catheter shaft having a proximal end and a distal end; an expandable member coupled with the catheter shaft near the distal end movable from a contracted configuration to an expanded configuration and wherein at least a portion of the expandable member is covered by an outer sheath; a tubular prosthesis selectively movable in an axial direction over the expandable member; a pusher for moving the tubular prosthesis, wherein the pusher is movable relative to the tubular prosthesis; and a stop member disposed on the catheter shaft near the distal end for stopping the prosthesis at a deployment position on the expandable member.
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Specification