APPARATUS FOR CROSSING OCCLUSIONS OR STENOSES
First Claim
1. A fixed deflection hollow device for crossing an occlusion or stenosis within a body lumen, the device comprising:
- an elongate hollow body having a proximal end, a distal portion with a distal end having a pre-determined deflection as compared to a longitudinal axis of the hollow body, and an axial lumen extending between the proximal and distal ends; and
a mechanically movable core element extending through the axial lumen of the body.
2 Assignments
0 Petitions
Accused Products
Abstract
A torqueable hollow device, such as a hollow guidewire device, with a pre-determined fixed distal tip is disclosed for removing occlusive material and passing through occlusions, stenosis, thrombus, plaque, calcified material, and other materials in a body lumen, such as a coronary artery. The hollow guidewire generally comprises an elongate, tubular guidewire body that has an axial lumen. A mechanically moving core element is positioned at or near a distal end of the tubular guidewire body and extends through the axial lumen. Actuation of the core element (e.g., oscillation, reciprocation, and/or rotation) creates a passage through the occlusive or stenotic material in the body lumen.
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Citations
76 Claims
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1. A fixed deflection hollow device for crossing an occlusion or stenosis within a body lumen, the device comprising:
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an elongate hollow body having a proximal end, a distal portion with a distal end having a pre-determined deflection as compared to a longitudinal axis of the hollow body, and an axial lumen extending between the proximal and distal ends; and a mechanically movable core element extending through the axial lumen of the body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58)
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59. A fixed deflection hollow device for crossing an occlusion or stenosis within a body lumen, the device comprising:
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an elongate hollow body having a proximal end, a distal portion with a distal end having a pre-determined deflection as compared to a longitudinal axis of the hollow body, and an axial lumen extending between the proximal and distal ends; and a mechanically movable core element movable by way of rotational oscillation extending through the axial lumen of the body, wherein the core element comprises a drive shaft and a shaft distal tip extending distally from the distal end of the body and is configured for creating a passageway or enlarging an existing passageway through the occlusion or stenosis within the body lumen.
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60. A method of crossing an occlusion or stenosis within a body lumen, said method comprising:
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positioning a distal end of a fixed deflection hollow device having an elongate hollow body having a proximal portion with a proximal end and a distal portion with the distal end which has a pre-determined deflection relative to the proximal portion adjacent to the occlusion or stenosis; applying torque to the proximal end of the elongate hollow body to steer the deflected distal end of the elongate hollow body in the body lumen; advancing the deflected distal end of the elongate member into the occlusion or stenosis; and rotating and/or oscillating a core element having a drive shaft and distal tip disposed within an inner lumen of the hollow body with the core element distal tip extending distally beyond the distal end of the hollow body. - View Dependent Claims (61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75)
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76. A method of crossing an occlusion or stenosis within a body lumen, said method comprising:
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positioning a distal end of a guidewire adjacent to the occlusion or stenosis; delivering an access system over the guidewire and positioning it adjacent to the occlusion or stenosis; removing the guidewire while the access system is maintained in place; advancing a distal end of a hollow device having an elongate hollow body having a proximal portion with a proximal end and a distal portion with the distal end which has a pre-determined deflection relative to the proximal portion through a lumen of the access system and positioning the deflected distal end of the hollow device adjacent to the occlusion or stenosis; applying torque to the proximal end of the elongate hollow body to steer the deflected distal end of the elongate hollow body in the body lumen; advancing the deflected distal end of the elongate member into the occlusion or stenosis; and rotating and/or oscillating a core element having a drive shaft and distal tip disposed within an inner lumen of the hollow body with the core element distal tip extending distally beyond the distal end of the hollow body.
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Specification