System for delivering a stent
First Claim
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1. A stent delivery system comprising:
- a hypotube having a proximal end, a distal end and a first diameter;
a guidewire having a second diameter and a reduced diameter portion for receiving a stent, the reduced diameter portion having a diameter smaller than the first diameter of the hypotube and the second diameter of the guidewire, the guidewire slidably positioned within the hypotube;
a flexible material extending from a portion of the hypotube to a portion of the guidewire; and
a stent positioned on the reduced diameter portion of the guidewire, wherein distal movement of the guidewire exposes the stent to enable it to move to its expanded position.
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Abstract
A stent delivery system comprising a hypotube having a proximal end portion, a distal end portion and a first diameter, and a guidewire having a second diameter and a reduced diameter portion having a diameter smaller than the first diameter of the hypotube for receiving a stent. The guidewire is slidably positioned within the hypotube. Flexible material, e.g. collapsible tubing such as shrink tubing, extends from a portion of the hypotube to a portion of the guidewire. A stent is positioned on the reduced diameter portion of the guidewire,
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Citations
16 Claims
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1. A stent delivery system comprising:
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a hypotube having a proximal end, a distal end and a first diameter;
a guidewire having a second diameter and a reduced diameter portion for receiving a stent, the reduced diameter portion having a diameter smaller than the first diameter of the hypotube and the second diameter of the guidewire, the guidewire slidably positioned within the hypotube;
a flexible material extending from a portion of the hypotube to a portion of the guidewire; and
a stent positioned on the reduced diameter portion of the guidewire, wherein distal movement of the guidewire exposes the stent to enable it to move to its expanded position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A stent delivery system comprising:
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a hypotube having a proximal end, a distal end and a first diameter;
a guidewire slidably positioned within the hypotube and movable from a first retracted position to a second advanced position;
a stop on the guidewire;
a stent mounted on the guidewire, the stop limiting proximal movement of the stent; and
a flexible material connected to a portion of the guidewire and a portion of the hypotube, wherein movement of the guidewire to the second position detaches the flexible material from the hypotube and exposes the stent to enable it to move to its expanded position. - View Dependent Claims (13, 14, 15, 16)
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Specification