Staged deployment devices and method for transcatheter heart valve delivery
First Claim
1. A delivery device for a collapsible prosthetic heart valve, the delivery device comprising:
- an operating handle, including;
a frame defining a movement space therein;
a carriage assembly moveable in a longitudinal direction within the movement space;
a coupler; and
a deployment actuator constrained relative to the coupler in the longitudinal direction,the coupler having a locked condition in which the coupler is connected to the frame in a fixed position and in which rotation of the deployment actuator moves the carriage assembly in the longitudinal direction relative to the coupler with a mechanical advantage, and an unlocked condition in which the coupler, the deployment actuator, and the carriage assembly are movable together in the longitudinal direction within the movement space without a mechanical advantage, the coupler being operatively connected to the carriage assembly for movement therewith, the coupler being selectively lockable to the frame in any of a plurality of fixed positions in the longitudinal direction; and
a catheter assembly, including;
a first shaft around which a compartment is defined, the first shaft being operatively connected to the frame, the compartment being adapted to receive the valve in an assembled condition; and
a distal sheath operatively connected to the carriage assembly, the distal sheath being moveable between a closed condition adapted to maintain the valve in the assembled condition and an open condition adapted to fully deploy the valve,wherein movement of the carriage assembly in the longitudinal direction in the movement space moves the distal sheath between the closed condition and the open condition.
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Accused Products
Abstract
A delivery device for a collapsible heart valve includes an operating handle and a catheter assembly. The operating handle includes a frame defining a movement space therein, a carriage assembly moveable in a longitudinal direction within the movement space, and a coupler having locked and unlocked conditions, the coupler being operatively connected to the carriage assembly for movement therewith. The catheter assembly includes a shaft around which a valve-receiving compartment is defined, the shaft being operatively connected to one of the frame or the carriage assembly, and a distal sheath operatively connected to the carriage assembly for movement therewith between a closed condition adapted to maintain the valve in the compartment and an open condition adapted to fully deploy the valve.
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Citations
17 Claims
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1. A delivery device for a collapsible prosthetic heart valve, the delivery device comprising:
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an operating handle, including; a frame defining a movement space therein; a carriage assembly moveable in a longitudinal direction within the movement space; a coupler; and a deployment actuator constrained relative to the coupler in the longitudinal direction, the coupler having a locked condition in which the coupler is connected to the frame in a fixed position and in which rotation of the deployment actuator moves the carriage assembly in the longitudinal direction relative to the coupler with a mechanical advantage, and an unlocked condition in which the coupler, the deployment actuator, and the carriage assembly are movable together in the longitudinal direction within the movement space without a mechanical advantage, the coupler being operatively connected to the carriage assembly for movement therewith, the coupler being selectively lockable to the frame in any of a plurality of fixed positions in the longitudinal direction; and a catheter assembly, including; a first shaft around which a compartment is defined, the first shaft being operatively connected to the frame, the compartment being adapted to receive the valve in an assembled condition; and a distal sheath operatively connected to the carriage assembly, the distal sheath being moveable between a closed condition adapted to maintain the valve in the assembled condition and an open condition adapted to fully deploy the valve, wherein movement of the carriage assembly in the longitudinal direction in the movement space moves the distal sheath between the closed condition and the open condition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification