Guidewire for crossing occlusions or stenoses
First Claim
Patent Images
1. A device for creating or enlarging a passageway in occlusive material in a body lumen, comprising:
- a flexible hollow guidewire having a proximal end, a distal end, and a lumen extending therethrough;
a drive shaft extending through the lumen of the hollow guidewire, the drive shaft rotatable relative to the hollow guidewire;
a distal tip located at a distal end of the drive shaft and rotatable with the drive shaft, the distal tip configured to remove occlusive material from the body lumen;
a housing coupled to the proximal end of the flexible hollow guidewire;
a motor arranged in the housing, the motor coupled to the drive shaft to provide rotational motion to the drive shaft; and
a control system located proximal of the housing with a wire extending between a proximal end of the housing and a distal end of the control system to power the motor.
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Accused Products
Abstract
Systems and methods for crossing stenosis, partial occlusions, or complete occlusions within a body lumen. The systems generally include an elongate member such as a hollow guidewire that houses a rotatable and translatable drive shaft. The drive shaft typically has a distal portion that is advanced to create a path in the occlusive material that is large enough to allow the hollow guidewire to cross the occlusive material.
164 Citations
20 Claims
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1. A device for creating or enlarging a passageway in occlusive material in a body lumen, comprising:
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a flexible hollow guidewire having a proximal end, a distal end, and a lumen extending therethrough; a drive shaft extending through the lumen of the hollow guidewire, the drive shaft rotatable relative to the hollow guidewire; a distal tip located at a distal end of the drive shaft and rotatable with the drive shaft, the distal tip configured to remove occlusive material from the body lumen; a housing coupled to the proximal end of the flexible hollow guidewire; a motor arranged in the housing, the motor coupled to the drive shaft to provide rotational motion to the drive shaft; and a control system located proximal of the housing with a wire extending between a proximal end of the housing and a distal end of the control system to power the motor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A device for creating or enlarging a passageway in occlusive material in a body lumen, comprising:
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a flexible hollow guidewire having a proximal end, a distal end, and a lumen extending therethrough, the hollow guidewire including a proximal tube and a coil member secured to a distal portion of the proximal tube; a drive shaft extending through the lumen of the hollow guidewire, the drive shaft rotatable relative to the hollow guidewire; a distal tip located at a distal end of the drive shaft and rotatable with the drive shaft, the distal tip configured to remove occlusive material from the body lumen; a housing coupled to the proximal tube at the proximal end of the flexible hollow guidewire; a motor arranged in the housing, the motor coupled to the drive shaft to provide rotational motion to the drive shaft; and a control system located proximal of the housing with a wire extending between a proximal end of the housing and a distal end of the control system; wherein the wire electrically couples the motor to a power supply located proximal of the proximal end of the housing to power the motor. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification