Heart valve delivery system with valve catheter
First Claim
1. An assembly for treating a native valve in a human heart, comprising:
- a prosthetic heart valve including an expandable frame, a valve structure, a first end portion, and a second end portion, wherein the first end portion has plurality of apertures formed therein; and
a delivery apparatus, comprising;
a valve catheter having a proximal end portion and a distal end portion;
a cylindrical coupling element connected to the distal end portion of the valve catheter;
a plurality of flexible, shape memory metal extension arms having first and second end portions, wherein the first end portions of the flexible extension arms are coupled to the coupling element, the second end portions of the flexible extension arms are releasably coupled to the prosthetic heart valve, and the flexible extension arms are configured to hold the prosthetic heart valve at a fixed location axially spaced from the distal end portion of the valve catheter such that axial movement of the valve catheter in a proximal direction and a distal direction results in corresponding movement of the prosthetic heart valve in the proximal and distal directions;
a plurality of slidable wires extending distally from the distal end portion of the valve catheter; and
a plurality of release members coupled to the distal end portion of the valve catheter, wherein each of the release members extends through a respective aperture of the prosthetic heart valve, thereby forming a releasable connection between the prosthetic heart valve and the slidable wires.
1 Assignment
0 Petitions
Accused Products
Abstract
An assembly for treating a native heart valve can include a prosthetic valve and a delivery apparatus. The prosthetic valve can include an expandable frame, a valve structure, a first end with apertures formed therein, and a second end. The delivery apparatus can include a valve catheter, flexible extension arms, slidable wires, and release members. First ends of the arms can be coupled to a cylindrical coupling element, second ends of the arms can be releasably coupled to the prosthetic valve, and the coupling element can be connected to the distal end of the valve catheter. The slidable wires can extend distally from the distal end of the valve catheter. The release members can be coupled to the distal end of the valve catheter and can extend through a respective aperture of the prosthetic valve, thereby forming a releasable connection between the prosthetic valve and the slidable wires.
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Citations
15 Claims
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1. An assembly for treating a native valve in a human heart, comprising:
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a prosthetic heart valve including an expandable frame, a valve structure, a first end portion, and a second end portion, wherein the first end portion has plurality of apertures formed therein; and a delivery apparatus, comprising; a valve catheter having a proximal end portion and a distal end portion; a cylindrical coupling element connected to the distal end portion of the valve catheter; a plurality of flexible, shape memory metal extension arms having first and second end portions, wherein the first end portions of the flexible extension arms are coupled to the coupling element, the second end portions of the flexible extension arms are releasably coupled to the prosthetic heart valve, and the flexible extension arms are configured to hold the prosthetic heart valve at a fixed location axially spaced from the distal end portion of the valve catheter such that axial movement of the valve catheter in a proximal direction and a distal direction results in corresponding movement of the prosthetic heart valve in the proximal and distal directions; a plurality of slidable wires extending distally from the distal end portion of the valve catheter; and a plurality of release members coupled to the distal end portion of the valve catheter, wherein each of the release members extends through a respective aperture of the prosthetic heart valve, thereby forming a releasable connection between the prosthetic heart valve and the slidable wires. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An assembly for treating a native valve in a human heart, comprising:
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a prosthetic heart valve including an expandable frame, a valve structure, a first end portion, and a second end portion, wherein the first end portion has plurality of apertures formed therein; a delivery sleeve having a lumen; a valve catheter having a proximal end portion and a distal end portion; a plurality of flexible extension arms coupled to a cylindrical base at proximal end portions of the flexible extension arms and releasably coupled to the prosthetic heart valve at distal end portions of the flexible extension arms, wherein the base is connected to the distal end portion of the valve catheter, wherein the flexible extension arms are configured to hold the prosthetic heart valve at a fixed location axially spaced from the distal end portion of the valve catheter such that axial movement of the valve catheter in a proximal direction and a distal direction is effective to cause corresponding movement of the prosthetic heart valve in the proximal and distal directions, wherein the flexible extension arms are further configured to radially expand with the prosthetic heart valve during expansion of the prosthetic heart valve at a treatment site, and to radially contract when relative movement between the delivery sleeve and the valve catheter results in the delivery sleeve being positioned over the flexible extension arms, causing the prosthetic heart valve to collapse from an expanded state to an at least partially collapsed state when the proximal end portion of the prosthetic heart valve is disposed distally from the delivery sleeve; a plurality of rods extending distally from the distal end portion of the valve catheter; and a plurality of release members coupled to the distal end portion of the valve catheter, wherein each of the release members is moveable between a first state and a second state, wherein when the release members are in the first state, each release member extends through a respective aperture of the prosthetic heart valve, thereby releasably retaining the prosthetic heart valve on the rods and the flexible extension arms, and wherein when the release members are in the second state, each release member is removed from its respective aperture, thereby allowing the prosthetic heart valve to be released from the rods and the flexible extension arms. - View Dependent Claims (13, 14, 15)
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Specification