Delivery apparatus for a prosthetic heart valve
AssigneeEdwards Lifesciences Corporation
InventorsOren Cohen, Ofir Witzman
Life of this patent
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Abstract
In one embodiment, a delivery apparatus handle, such as for a mechanical heart valve frame can comprise an actuation knob with a toggle mechanism that can toggle the actuation knob from a first state in which the actuation knob is operable to cause the linear or rotational movement of multiple elements or sets of elements, such as tubes that are attached to, e.g., a mechanical heart valve frame to cause expansion or collapsing of the frame, to a second state in which only a single element or set of elements is moved, allowing for additional operations, such as, e.g., locking the frame and/or releasing it from the delivery apparatus.
Claims17
A delivery apparatus for implanting a medical device in a patient's body, the delivery apparatus comprising:
- a handle;
- plurality of elongate elements extending from the handle;
- an actuation knob configured to actuate at least one of the plurality of elongate elements;
- and
- a toggle configured to move axially along a longitudinal axis relative to the actuation knob from a first toggle position to a second toggle position to toggle the actuation knob between a first state and a second state, wherein when the actuation knob is in the first state, rotation of the actuation knob moves at least two of the plurality of elongate elements axially, and wherein when the actuation knob is in the second state, rotation of the actuation knob moves only a single one of the plurality of elongate elements axially;
- wherein:
- the medical device comprises a radially expandable and compressible frame that is expandable from a radially compressed, delivery state to a radially expanded state;
- and
- rotation of the actuation knob when in the first state is effective to radially expand the frame to the expanded state.
A delivery apparatus for implanting a medical device in a patient's body, the delivery apparatus comprising:
- a handle;
- a plurality of elongate elements extending from the handle;
- an actuation knob configured to actuate at least one of the plurality of elongate elements;
- a toggle configured to toggle the actuation knob between a first state and a second state, wherein when the actuation knob is in the first state, rotation of the actuation knob moves at least two of the plurality of elongate elements axially, and wherein when the actuation knob is in the second state, rotation of the actuation knob moves only one of the plurality of elongate elements axially;
- a rotatable component disposed in the handle, wherein the rotatable component is operatively coupled to a selected one of the plurality of elongate elements, such that when the actuation knob is in the first state, rotation of the actuation knob causes corresponding rotation of the rotatable component, the rotation of the rotatable component causing axial movement of the selected one of the plurality of elongate elements;
- and
- one or more plungers disposed between the toggle and the actuation knob, wherein the toggle is configured to move the plungers between a first plunger position and a second plunger position upon movement of the toggle toward and away from the actuation knob, wherein:
- when the plungers are in the first plunger position, the plungers extend through the actuation knob and into the rotatable component such that rotation of the actuation knob causes rotation of the rotatable component, and
- when the plungers are in the second position, the plungers are withdrawn from the rotatable component such that rotation of the actuation knob does not cause corresponding rotation of the rotatable component.
An assembly comprising:
- a prosthetic heart valve comprising a radially expandable and compressible frame;
- and
- a delivery apparatus for implanting the prosthetic heart valve in a patient's body, wherein the delivery apparatus comprises:
- a handle;
- a plurality of elongate elements extending from the handle;
- an actuation knob configured to actuate at least one of the elongate elements;
- and
- a toggle configured to toggle the actuation knob between a first state and a second state, wherein:
- when the actuation knob is in the first state, rotation of the actuation knob moves at least two of the elongate elements axially, and
- when the actuation knob is in the second state, rotation of the actuation knob moves only one of the plurality of elongate elements axially;
- and
- wherein:
- the frame is expandable from a radially compressed, delivery state to a radially expanded state;
- each of the plurality of elongate elements has a distal end portion releasably coupled to the frame;
- rotation of the actuation knob when in the first state is effective to radially expand the frame from the delivery state to the expanded state;
- and
- rotation of the actuation knob when in the second state is effective to release the frame from the plurality of elongate elements.
Dependencies are inferred from the claim text.