Balloon atherectomy catheters with imaging
First Claim
Patent Images
1. An atherectomy catheter comprising:
- an elongate flexible catheter body;
a cutter near the distal end of the catheter body;
an elongate distal tip connected to the catheter body at an off-axis hinge point, the elongate distal tip including a cutting window therein;
a drive shaft connected to the cutter and extending within the catheter body;
an imaging element near the distal end of the catheter body; and
an inflatable element attached to the elongate flexible catheter body proximate to the hinge point and opposite to the cutting window, the inflatable element configured to inflate to urge the cutter against a vessel wall; and
wherein the drive shaft is configured to be axially translated relative to the catheter body.
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Accused Products
Abstract
An atherectomy catheter includes an elongate flexible catheter body, a cutter near the distal end of the catheter body, a drive shaft connected to the cutter and extending within the catheter body, an imaging element near the distal end of the catheter body and an imaging shaft connected to the imaging element and extending within the catheter body. The cutter and the imaging element are mechanically isolated, and the drive shaft is configured to be axially translated relative to the imaging shaft and the catheter body.
467 Citations
33 Claims
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1. An atherectomy catheter comprising:
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an elongate flexible catheter body; a cutter near the distal end of the catheter body; an elongate distal tip connected to the catheter body at an off-axis hinge point, the elongate distal tip including a cutting window therein; a drive shaft connected to the cutter and extending within the catheter body; an imaging element near the distal end of the catheter body; and an inflatable element attached to the elongate flexible catheter body proximate to the hinge point and opposite to the cutting window, the inflatable element configured to inflate to urge the cutter against a vessel wall; and wherein the drive shaft is configured to be axially translated relative to the catheter body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An atherectomy catheter comprising:
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an elongate flexible catheter body; a cutter near the distal end of the catheter body; a drive shaft connected to the cutter and extending within the catheter body; an imaging element near the distal end of the catheter body; and an imaging shaft connected to the imaging element and extending within the catheter body, wherein the drive shaft and imaging shaft are concentric, and wherein the drive shaft extends within the imaging shaft; wherein the cutter and the imaging element are mechanically isolated; and wherein the drive shaft is configured to be axially translated relative to the imaging shaft and the catheter body. - View Dependent Claims (10, 11)
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12. An atherectomy catheter comprising:
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an elongate flexible catheter body; a cutter near the distal end of the catheter body; a drive shaft connected to the cutter and extending within the catheter body; an imaging element near the distal end of the catheter body; and an imaging shaft connected to the imaging element and extending within the catheter body, wherein the drive shaft and imaging shaft are concentric, and wherein the imaging shaft extends within the drive shaft; wherein the cutter and the imaging element are mechanically isolated; and wherein the drive shaft is configured to be axially translated relative to the imaging shaft and the catheter body. - View Dependent Claims (13)
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14. An atherectomy catheter comprising:
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an elongate flexible catheter body; a drive shaft extending within the catheter body, the drive shaft having a cutter attached thereto; an elongate distal tip connected to the catheter body at a hinge point, the elongate distal tip including a cutting window therein; and an inflatable body linked to both the elongate flexible catheter body and to the elongate distal tip proximate to the hinge point and opposite to the cutting window, wherein inflation of the inflatable body urges the cutter through the cutting window and against a wall of the vessel. - View Dependent Claims (15, 16, 17, 18, 19, 20, 26, 27)
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21. An atherectomy assembly comprising:
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an elongate flexible catheter body; a drive shaft extending within the catheter body, the drive shaft having a rotatable cutter attached thereto, wherein the drive shaft is axially movable with respect to the elongate flexible catheter body; an optical fiber attached to the cutter and configured to rotate therewith; and a handle having a distal end attached to the elongate body and a proximal end configured to connect the optical fiber to a light source, wherein the handle is configured such the optical fiber is axially movable with respect to the distal end and axially fixed with respect to the proximal end. - View Dependent Claims (22, 23, 24, 25, 28, 29, 30, 31, 32, 33)
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Specification