Retainers for transcatheter heart valve delivery systems
First Claim
1. A delivery device for an implantable medical device having at least one retainer thereon, the delivery device comprising:
- an inner shaft extending in a longitudinal direction;
an outer sheath adapted to surround at least a portion of the inner shaft, the outer sheath being slideable relative to the inner shaft in the longitudinal direction;
a compartment defined between the inner shaft and the outer sheath and adapted to receive the medical device in an assembled condition;
a retaining assembly positioned at one end of the compartment, the retaining assembly including a first member rotatable with respect to the inner shaft, and a second member rotationally fixed with respect to the inner shaft; and
at least one retainer slot in the first member adapted to receive the retainer of the medical device in the assembled condition,wherein engagement between the first member and the second member limits rotation of the first member.
1 Assignment
0 Petitions
Accused Products
Abstract
A delivery device for an implantable medical device includes an inner shaft extending in a longitudinal direction and an outer sheath adapted to surround at least a portion of the inner shaft, the outer sheath being slideable relative to the inner shaft in the longitudinal direction. A compartment defined between the inner shaft and the outer sheath is adapted to receive the medical device in an assembled condition. A retaining assembly positioned at one end of the compartment includes a first member rotatable with respect to the inner shaft, and a second member rotationally fixed with respect to the inner shaft. The medical device includes at least one retainer adapted to be received within at least one retainer slot of the first member. This arrangement enables the medical device to rotate within the compartment as the delivery device is advanced to an implantation site.
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Citations
20 Claims
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1. A delivery device for an implantable medical device having at least one retainer thereon, the delivery device comprising:
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an inner shaft extending in a longitudinal direction; an outer sheath adapted to surround at least a portion of the inner shaft, the outer sheath being slideable relative to the inner shaft in the longitudinal direction; a compartment defined between the inner shaft and the outer sheath and adapted to receive the medical device in an assembled condition; a retaining assembly positioned at one end of the compartment, the retaining assembly including a first member rotatable with respect to the inner shaft, and a second member rotationally fixed with respect to the inner shaft; and at least one retainer slot in the first member adapted to receive the retainer of the medical device in the assembled condition, wherein engagement between the first member and the second member limits rotation of the first member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of delivering a collapsible prosthetic valve to a patient comprising:
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providing the collapsible prosthetic valve having a collapsible valve assembly mounted within a collapsible stent, the stent having a plurality of retainers extending therefrom; providing a delivery device including; an inner shaft extending in a longitudinal direction; an outer sheath adapted to surround at least a portion of the inner shaft; a compartment defined between the inner shaft and the outer sheath; and a retaining assembly positioned at one end of the compartment, the retaining assembly including a first member rotatable with respect to the inner shaft and a second member rotationally fixed with respect to the inner shaft; loading the collapsible prosthetic valve into the compartment in a collapsed condition so that the retainers are received within corresponding retainer slots of the first member; advancing the compartment to a site of implantation in the patient; rotating the first member relative to the second member during the advancing step, wherein engagement between the first member and the second member limits rotation of the first member; and exposing the compartment by sliding the outer sheath relative to the inner shaft so that the collapsible prosthetic valve at least partially expands. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification