Control handle
First Claim
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1. A delivery device, comprising:
- a handle comprising a trigger and a housing;
a trigger rack affixed to the trigger, the trigger rack being movable back and forth within the handle and being pivotable about a pivot point, the trigger rack thereby being rotatable along a curved path around the pivot point;
a stationary rack affixed to the housing, wherein the trigger rack and the stationary rack comprise a downward sloping curvature;
a passageway between the trigger rack and the stationary rack having a downward sloping curvature; and
a movable member disposed within the passageway, the movable member being ratchedly engaged to the trigger rack and the stationary rack along the entire downward sloping curvature of the passageway, a distal end of the movable member adapted to be assembled to a proximal end of an elongate sheath, wherein the ratcheted engagement of the movable member with the trigger rack and the stationary rack is configured to proximally retract the elongate sheath as the trigger is actuated.
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Abstract
A delivery device for deploying an expandable prosthesis and method of use are described. The delivery device comprises a handle that comprises a trigger. Activation of the trigger enables incremental retraction of an outer sheath to expose a self-expanding prosthesis. Activation and subsequent deactivation of the trigger causes a movable member to ratchedly engage with a stationary rack and a trigger rack.
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Citations
19 Claims
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1. A delivery device, comprising:
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a handle comprising a trigger and a housing; a trigger rack affixed to the trigger, the trigger rack being movable back and forth within the handle and being pivotable about a pivot point, the trigger rack thereby being rotatable along a curved path around the pivot point; a stationary rack affixed to the housing, wherein the trigger rack and the stationary rack comprise a downward sloping curvature; a passageway between the trigger rack and the stationary rack having a downward sloping curvature; and a movable member disposed within the passageway, the movable member being ratchedly engaged to the trigger rack and the stationary rack along the entire downward sloping curvature of the passageway, a distal end of the movable member adapted to be assembled to a proximal end of an elongate sheath, wherein the ratcheted engagement of the movable member with the trigger rack and the stationary rack is configured to proximally retract the elongate sheath as the trigger is actuated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A delivery system, comprising:
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a handle comprising a trigger and a housing; an inner sheath extending to the handle, an outer sheath coaxially disposed over the inner sheath and extending into the handle; a prosthesis disposed between the inner sheath and the outer sheath; a trigger rack affixed to the trigger, the trigger rack being movable back and forth along a path within the handle and being pivotable about a pivot point, the trigger rack thereby being rotatable along a curved path around the pivot point; a stationary rack affixed to the housing, wherein the trigger rack and the stationary rack comprise a downward sloping curvature; and a passageway between the trigger rack and the stationary rack having a downward sloping curvature; and a movable member disposed within the passageway;
the movable member being ratchedly engaged to the trigger rack and the stationary rack along the entire downward sloping curvature of the passageway, a distal end of the movable member affixed to a proximal end of the outer sheath, wherein the ratcheted engagement of the movable member with the trigger rack and the stationary rack proximally retract the outer sheath and deploy the prosthesis. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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Specification