Staged deployment devices and methods for transcatheter heart valve delivery systems
First Claim
1. A delivery device for a collapsible prosthetic heart valve, the delivery device comprising:
- an operating handle, including;
a frame defining a first longitudinal end and a second longitudinal end spaced apart in a longitudinal direction of the operating handle, and a movement space located between the first and second longitudinal ends;
a carriage assembly having a first longitudinal end and a second longitudinal end spaced apart in the longitudinal direction, the carriage assembly moveable in the longitudinal direction within the movement space, the first and second longitudinal ends of the carriage assembly located within the movement space; and
a first resheathing lock having a locked position and an unlocked position, the first resheathing lock in the locked position limiting movement of the carriage assembly in the longitudinal direction to a first intermediate position in the movement space, and the first resheathing lock in the unlocked position permitting movement of the carriage assembly in the longitudinal direction beyond the first intermediate position in the movement space; and
a catheter assembly, including;
a first shaft around which a compartment is defined, the first shaft being fixedly connected to the frame, the compartment being adapted to receive the valve in an assembled condition;
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; and
an outer shaft connecting the carriage assembly to the distal sheath and at least partially surrounding the first shaft,wherein movement of the carriage assembly to the first intermediate position moves the distal sheath to a condition between the closed condition and the open condition so that the valve is not fully deployed.
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Accused Products
Abstract
A delivery device for a collapsible heart valve includes an operating handle, including a frame defining a movement space therein, a carriage assembly moveable within the movement space, and a first resheathing lock having a locked position and an unlocked position. The delivery device further includes a catheter assembly, including a first shaft around which a valve-receiving compartment is defined, the first shaft being fixedly connected to one of the frame or the carriage assembly, and a distal sheath operatively connected to the carriage assembly. The distal sheath is moveable between a closed condition adapted to maintain the valve in the compartment and an open condition adapted to fully deploy the valve. With the resheathing lock in the locked position, the distal sheath is unable to move to the open condition to fully deploy the valve.
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Citations
15 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 first longitudinal end and a second longitudinal end spaced apart in a longitudinal direction of the operating handle, and a movement space located between the first and second longitudinal ends; a carriage assembly having a first longitudinal end and a second longitudinal end spaced apart in the longitudinal direction, the carriage assembly moveable in the longitudinal direction within the movement space, the first and second longitudinal ends of the carriage assembly located within the movement space; and a first resheathing lock having a locked position and an unlocked position, the first resheathing lock in the locked position limiting movement of the carriage assembly in the longitudinal direction to a first intermediate position in the movement space, and the first resheathing lock in the unlocked position permitting movement of the carriage assembly in the longitudinal direction beyond the first intermediate position in the movement space; and a catheter assembly, including; a first shaft around which a compartment is defined, the first shaft being fixedly connected to the frame, the compartment being adapted to receive the valve in an assembled condition; 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; and an outer shaft connecting the carriage assembly to the distal sheath and at least partially surrounding the first shaft, wherein movement of the carriage assembly to the first intermediate position moves the distal sheath to a condition between the closed condition and the open condition so that the valve is not fully deployed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification