Prosthetic valve delivery apparatus having clutch mechanism
First Claim
1. A delivery apparatus for delivering a medical device, comprising:
- an elongated, first component comprising an engagement portion having threads or grooves and a disengagement portion lacking the threads or grooves;
a travelling, second component coaxially disposed relative to the first elongated component, the travelling component comprising threads or grooves configured to mate with the threads or grooves of the first elongated component; and
a biasing member located proximate the disengagement portion of the first elongated component;
wherein the first elongated component is configured to be rotatable relative to the traveling component such that rotation of the first elongated component causes the travelling component to move axially along the threads or grooves of the engagement portion, the threads or grooves of the travelling component disengaging from the threads or grooves of the engagement portion upon movement of the travelling component into the disengagement portion of the first elongated component, and the biasing member biasing the travelling component against the threads or grooves of the engagement portion such that the travelling component reengages the engagement portion when the rotational direction of the first elongated component is reversed.
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Accused Products
Abstract
In a particular embodiment, the present disclosure provides a delivery apparatus for delivering a medical device. The delivery apparatus includes an elongated component with an engagement portion and a disengagement portion. Rotating the elongated component in a first rotational direction moves the travelling component along the engagement portion in a first axial direction. When the travelling component is located within the disengagement portion, continued rotation of the elongated component in the first rotational direction does not cause further movement of the travelling component in the first axial direction. A biasing member is located proximate the disengagement portion and urges the travelling component to reengage the engagement potion. The delivery apparatus can reduce or prevent damage to the delivery apparatus, or a patient with whom the delivery apparatus is used, by reducing or eliminating torque transfer from the travelling component to an end of the elongated component.
194 Citations
20 Claims
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1. A delivery apparatus for delivering a medical device, comprising:
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an elongated, first component comprising an engagement portion having threads or grooves and a disengagement portion lacking the threads or grooves; a travelling, second component coaxially disposed relative to the first elongated component, the travelling component comprising threads or grooves configured to mate with the threads or grooves of the first elongated component; and a biasing member located proximate the disengagement portion of the first elongated component; wherein the first elongated component is configured to be rotatable relative to the traveling component such that rotation of the first elongated component causes the travelling component to move axially along the threads or grooves of the engagement portion, the threads or grooves of the travelling component disengaging from the threads or grooves of the engagement portion upon movement of the travelling component into the disengagement portion of the first elongated component, and the biasing member biasing the travelling component against the threads or grooves of the engagement portion such that the travelling component reengages the engagement portion when the rotational direction of the first elongated component is reversed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method comprising:
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inserting a distal end of an elongated delivery apparatus into a patient, the elongated delivery apparatus comprising an elongated component comprising an engagement portion having threads or grooves and a disengagement portion lacking the threads or grooves; rotating the elongated component in a first rotational direction to move a travelling component axially along the engagement portion of the elongated component in a first axial direction; axially moving the travelling component into the disengagement portion of the elongated component, wherein continued rotation of the elongated component in the first rotational direction does not cause the travelling component to continue to move axially in the first axial direction when the travelling component is located in the disengagement portion; biasing the travelling component against the engagement portion of the elongated component; and rotating the elongated component in a second rotational direction, wherein the biasing of the travelling component facilitates reengagement of the traveling component with the engagement portion of the elongated component and continued rotation of the elongated component in the second rotational direction moves the travelling component in a second axial direction. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification