Delivery Mechanism for Implantable Stent
First Claim
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1. A system comprising:
- a longitudinally elongated housing with;
a longitudinally passageway;
a collar coaxially outside of the passageway;
a drive knob between the collar and the passageway having a longitudinal length;
a longitudinally internally threaded nut coaxial within the drive knob; and
a longitudinally externally threaded screw coaxial within the nut;
a member for incremental rotation of the screw, which moves the screw longitudinally;
a longitudinal sheath connected to the screw;
a tube with a distal end and a proximal end extending through the sheath;
a tip having a distal end and a proximal end near the tube distal end;
a stop coaxial with the tube; and
a stent bed on the tube between the stop and the tip distal end;
wherein the system has;
a delivery configuration in which the sheath covers the bed, anda deployed configuration in which the sheath does not cover the bed because manipulation of the member has rotated the screw, which has moved the screw longitudinally, pulling the sheath off of the bed.
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Abstract
A system including a longitudinally elongated housing, a member for incremental rotation of a screw, which moves the screw longitudinally, and a longitudinal sheath connected to the screw. The system has a delivery configuration in which a sheath covers a stent bed, and a deployed configuration in which the sheath does not cover the stent bed because manipulation of the member has rotated the screw, which has moved the screw longitudinally, pulling the sheath off of the stent bed.
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Citations
14 Claims
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1. A system comprising:
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a longitudinally elongated housing with; a longitudinally passageway; a collar coaxially outside of the passageway; a drive knob between the collar and the passageway having a longitudinal length; a longitudinally internally threaded nut coaxial within the drive knob; and a longitudinally externally threaded screw coaxial within the nut; a member for incremental rotation of the screw, which moves the screw longitudinally; a longitudinal sheath connected to the screw; a tube with a distal end and a proximal end extending through the sheath; a tip having a distal end and a proximal end near the tube distal end; a stop coaxial with the tube; and a stent bed on the tube between the stop and the tip distal end; wherein the system has; a delivery configuration in which the sheath covers the bed, and a deployed configuration in which the sheath does not cover the bed because manipulation of the member has rotated the screw, which has moved the screw longitudinally, pulling the sheath off of the bed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method comprising:
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providing; a stent; and a system comprising; a longitudinally elongated housing with; a longitudinally passageway; a collar coaxially outside of the passageway; a drive knob between the collar and the passage-way having a longitudinal length; a longitudinally internally threaded nut coaxial within the drive knob; and a longitudinally externally threaded screw coaxial within the nut; a member for incremental screw rotation, which moves the screw longitudinally; a longitudinal sheath connected to the screw; a tube with a distal end and a proximal end extending through the sheath ; a tip having a distal end and a proximal end near the tube distal end; a stop coaxial with the tube; and a stent bed on the tube between the stop and the tip distal end; wherein the system has; a delivery configuration in which the sheath covers the bed, and a deployed configuration in which the sheath does not cover the bed because manipulation of the member has rotated the screw, which has moved the screw longitudinally, pulling the sheath off of the bed; wherein the stent is on the stent bed; inserting a distal end of the system into a body vessel and positioning the system at a desired location; and moving the member to retract the sheath distal end to a position proximal of the stent. - View Dependent Claims (11, 12, 13, 14)
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Specification