Controlled release and recapture prosthetic deployment device
First Claim
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1. A controlled release and recapture prosthetic deployment device comprising:
- a handle;
a tubular sheath fixedly attached to and extending distally from the handle;
an elongate pusher member extending through the handle and through a longitudinal lumen of the sheath; and
a self-expanding prosthesis removably disposed within a distal portion of the sheath and attached to the pusher member;
wherein the handle comprises;
a handle body;
an advancement member in the handle body, where the advancement member is biased toward a proximal device end;
a keeper member attached to the handle body, where the keeper member is also biased toward the proximal device end; and
a trigger member,pivotable relative to the handle body,disposed in mechanical communication with the advancement member, andconfigured to move the advancement member distally when the trigger member is pivoted in a first direction;
wherein the advancement member comprises an advancement member aperture through which the pusher member extends, where the advancement member apertureis configured to capturingly engage the pusher member when the advancement member is disposed at a first angle relative to the pusher member, which corresponds with pivoting movement of the trigger in the first direction, andis configured to allow freely sliding passage therethrough of the pusher member when the advancement member is disposed at a second angle relative to the pusher member;
wherein the keeper member comprises a keeper member aperture through which the pusher member extends, where the keeper member aperture is configured to capturingly engage the pusher member to prevent its movement in a proximal direction when the keeper member is disposed at a first angle relative to the pusher member, and is configured to allow freely sliding proximal passage therethrough of the pusher member when the keeper member is disposed at a second angle relative to the pusher member.
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Abstract
A delivery device for deploying and resheathing an expandable prosthesis and method of use thereof are described. The delivery device includes a fixed outer sheath and a pusher member that is configured for retracting in a proximal direction and resheathing the prosthesis. The device includes two plates engaging the pusher member, with a first plate configured engage the pusher member to prevent proximal movement and the other plate configured to engage the pusher member for distal movement.
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Citations
18 Claims
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1. A controlled release and recapture prosthetic deployment device comprising:
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a handle; a tubular sheath fixedly attached to and extending distally from the handle; an elongate pusher member extending through the handle and through a longitudinal lumen of the sheath; and a self-expanding prosthesis removably disposed within a distal portion of the sheath and attached to the pusher member; wherein the handle comprises; a handle body; an advancement member in the handle body, where the advancement member is biased toward a proximal device end; a keeper member attached to the handle body, where the keeper member is also biased toward the proximal device end; and a trigger member, pivotable relative to the handle body, disposed in mechanical communication with the advancement member, and configured to move the advancement member distally when the trigger member is pivoted in a first direction; wherein the advancement member comprises an advancement member aperture through which the pusher member extends, where the advancement member aperture is configured to capturingly engage the pusher member when the advancement member is disposed at a first angle relative to the pusher member, which corresponds with pivoting movement of the trigger in the first direction, and is configured to allow freely sliding passage therethrough of the pusher member when the advancement member is disposed at a second angle relative to the pusher member; wherein the keeper member comprises a keeper member aperture through which the pusher member extends, where the keeper member aperture is configured to capturingly engage the pusher member to prevent its movement in a proximal direction when the keeper member is disposed at a first angle relative to the pusher member, and is configured to allow freely sliding proximal passage therethrough of the pusher member when the keeper member is disposed at a second angle relative to the pusher member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 17, 18)
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12. A delivery device for delivering a self-expanding prosthesis comprising:
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a handle member; a tubular sheath attached to and extending distally from the handle member; a first plate member disposed in the handle member and biased toward a proximal end of the handle member, the first plate member including a first aperture therethrough; a second plate member disposed in the handle member and biased toward a proximal end of the handle member, the second plate member including a second aperture therethrough; an elongate pusher member extending through the first and second apertures and a length of the tubular sheath; and a self-expanding prosthesis removably disposed within a distal portion of the sheath and attached to the pusher member; wherein the first and second apertures each have a longitudinal axis and are configured such that when said longitudinal axes are disposed in a first orientation, the pusher member will be freely movable in a distal but not a proximal direction, and when said longitudinal axes are disposed in a second orientation, the pusher member will be freely movable in a proximal but not a distal direction. - View Dependent Claims (13, 14, 15, 16)
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Specification