System for loading a collapsible heart valve
First Claim
1. An assembly for loading a self-expanding prosthetic device into a delivery device, comprising:
- a compression member having a longitudinal axis, a first open end with a first diameter, a second open end with a second diameter less than the first diameter, and a wall decreasing in diameter in a distal direction from the first open end towards the second open end, the wall defining an open space adapted to receive the prosthetic device;
a support member having a longitudinal axis, a base and a through bore extending along the longitudinal axis of the support member, the through bore being sized to receive a portion of the delivery device therethrough, the support member having a recess extending around the through bore adapted to receive an end of the prosthetic device, the support member and the compression member being movable relative to one another between an initial position in which the base of the support member is relatively far from the first open end of the compression member and an operative position in which the base of the support member is relatively close to the first open end of the compression member, wherein movement of the support member and the compression member from the initial position to the operative position pushes the prosthetic device at least partially through the open space such that at least a portion of the prosthetic device is radially compressed by the wall of the compression member as the prosthetic device advances through the open space; and
a constricting member having a lumen defined therethrough, the lumen having proximal end and a distal end, the proximal end of the lumen being sized to receive the second open end of the compression member.
1 Assignment
0 Petitions
Accused Products
Abstract
An assembly for collapsing a self-expanding prosthetic heart valve includes a compression member, a support member and a constricting member. The compression member has a tapered wall between its first open end and its second open end, the tapered wall defining an open space adapted to receive the valve. The support member has a base and a recess adapted to receive an end of the valve. The support member and the compression member are movable toward one another to compress the valve and push it through a relatively small aperture in the second open end of the compression member. The second end of the constricting member is sized to receive the compressed valve from the second open end of the compression member for loading into a delivery device.
68 Citations
22 Claims
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1. An assembly for loading a self-expanding prosthetic device into a delivery device, comprising:
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a compression member having a longitudinal axis, a first open end with a first diameter, a second open end with a second diameter less than the first diameter, and a wall decreasing in diameter in a distal direction from the first open end towards the second open end, the wall defining an open space adapted to receive the prosthetic device; a support member having a longitudinal axis, a base and a through bore extending along the longitudinal axis of the support member, the through bore being sized to receive a portion of the delivery device therethrough, the support member having a recess extending around the through bore adapted to receive an end of the prosthetic device, the support member and the compression member being movable relative to one another between an initial position in which the base of the support member is relatively far from the first open end of the compression member and an operative position in which the base of the support member is relatively close to the first open end of the compression member, wherein movement of the support member and the compression member from the initial position to the operative position pushes the prosthetic device at least partially through the open space such that at least a portion of the prosthetic device is radially compressed by the wall of the compression member as the prosthetic device advances through the open space; and a constricting member having a lumen defined therethrough, the lumen having proximal end and a distal end, the proximal end of the lumen being sized to receive the second open end of the compression member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for loading a self-expanding prosthetic device into a delivery device, the delivery device including a distal tip, a proximal conical end, a retaining element, a compartment defined between the proximal conical end and the retaining element and adapted to receive the prosthetic device, and a distal sheath movable between a closed position fully covering the compartment and an open position uncovering the compartment, and the prosthetic device including a stent, and at least one retainer at one end of the stent, the prosthetic device having an expanded condition and a collapsed condition, the method comprising:
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inserting the prosthetic device in the expanded condition into a compression member having an inner surface which decreases in diameter progressively from a first open end to a second open end; initially advancing the prosthetic device through the compression member until the at least one retainer protrudes from the second open end of the compression member; advancing a delivery device through the first open end of the compression member until the at least one retainer of the prosthetic device is disposed near the retaining element of the delivery device and moving the delivery device into the open position to uncover the compartment; attaching the at least one retainer of the prosthetic device to the retaining element of the delivery device; and moving the distal sheath of the delivery device to the closed position, and further advancing the prosthetic device through the second open end of the compression member. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification