Deployment system for a medical device
First Claim
1. A deployment system for a medical device, comprising:
- a movable sheath covering a medical device; and
an operator handle, the handle including a rotatable element associated with a sliding member, the sliding member coupled to the movable sheath and configured to transverse along a path in response to a rotational force applied to the rotatable element, the path defined by a coil spring.
1 Assignment
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Accused Products
Abstract
A delivery and deployment system for a self-expanding stent comprises a proximal handle having a rotatable thumbscrew and a sliding component which is attached to a distal stent restraining sheath. A rigid open coil spring is provided for converting rotation of the thumbscrew into translation of the sliding component). The spring is attached to the thumbscrew. The sliding component is located between adjacent coils of the spring. Rotation of the thumbscrew twists the spring and slowly slides the sliding component and hence the distal sheath in the proximal direction to uncover the stent, removing the constraint on the stent which is accurately deployed at the site of interest. The handle has a guide elongate channel which constrains the sliding component so that it cannot move in a rotational direction.
46 Citations
19 Claims
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1. A deployment system for a medical device, comprising:
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a movable sheath covering a medical device; and
an operator handle, the handle including a rotatable element associated with a sliding member, the sliding member coupled to the movable sheath and configured to transverse along a path in response to a rotational force applied to the rotatable element, the path defined by a coil spring. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 17, 18)
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9. A deployment system for a medical device, comprising:
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a shaft assembly including a fixed inner member and a slidable outer member;
a handle assembly including a non-rotating portion and a rotating portion;
a guide member associated with the non-rotating portion of the handle assembly and extending therethrough, the fixed inner member associated with the guide member;
a coil spring disposed about the guide member; and
a sliding component having at least one projection configured to engage a path defined by the coil spring, the sliding component further associated with the slidable outer member, wherein rotation of the rotating portion of the handle assembly causes the sliding component to move along the path of the coil spring. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 19)
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Specification