Apparatus and method for treating occluded vasculature
First Claim
Patent Images
1. A guidewire assembly having a proximal end and a distal end, the guidewire assembly configured to penetrate a vascular occlusion, the guidewire assembly comprising:
- a metallic tubular member having a proximal end, a distal end, and a lumen extending therethrough, the metallic tubular member including a wall having a plurality of apertures processed therein to provide a degree of flexibility to the metallic tubular member; and
a stylet disposed within the lumen of the metallic tubular member, the stylet having a proximal end and a distal end including a cutting surface adapted to penetrate a vascular occlusion.
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Abstract
Occluded vasculature such as occluded arterial vasculature can be recanalized using a device that is configured to penetrate an occlusion, while limiting a distance that said penetration structure can extend in order to limit inadvertent vascular damage. The device can include an elongate shaft of a guidewire and a stylet disposed within a lumen of the elongate shaft such that the stylet is selectively actuatable within the elongate shaft.
170 Citations
20 Claims
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1. A guidewire assembly having a proximal end and a distal end, the guidewire assembly configured to penetrate a vascular occlusion, the guidewire assembly comprising:
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a metallic tubular member having a proximal end, a distal end, and a lumen extending therethrough, the metallic tubular member including a wall having a plurality of apertures processed therein to provide a degree of flexibility to the metallic tubular member; and
a stylet disposed within the lumen of the metallic tubular member, the stylet having a proximal end and a distal end including a cutting surface adapted to penetrate a vascular occlusion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An elongate medical device having a proximal end and a distal end, the elongate medical device configured to penetrate a vascular occlusion, the elongate medical device comprising:
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an elongate shaft having a proximal end, a distal end, and a lumen extending therethrough;
a stylet disposed within the lumen of the elongate shaft, the stylet having a proximal end and a distal end; and
a hub assembly coupled to the proximal end of the elongate medical device, wherein the hub assembly allows for limited axial movement of the stylet within the lumen of the elongate shaft, such that in a first position the stylet extends distally from the distal end of the elongate shaft, and in a second position the stylet is retracted into the lumen of the elongate shaft. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A guidewire assembly having a proximal end and a distal end, the guidewire assembly configured to penetrate a vascular occlusion, the guidewire assembly comprising:
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a metallic tubular member having a proximal end, a distal end, and a lumen extending therethrough, the metallic tubular member including a wall having a plurality of slots cut therein to provide a degree of flexibility to the metallic tubular member;
a stylet disposed within the lumen of the metallic tubular member, the stylet having a proximal end and a distal end configured to penetrate a vascular occlusion; and
a hub assembly coupled to the proximal end of the guidewire assembly, wherein the hub assembly allows for limited axial movement of the stylet within the lumen of the metallic tubular member, such that in a first position the stylet extends distally from the distal end of the metallic tubular member, and in a second position the stylet is retracted into the lumen of the metallic tubular member. - View Dependent Claims (18, 19, 20)
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Specification