Eccentric balloon laser catheter
First Claim
1. A laser catheter comprising:
- a catheter body including a central axis, a distal end, a proximal end, and a cavity disposed within a periphery of the catheter body proximal to the distal end, wherein the cavity is cut through a portion of the periphery of the catheter body;
an inner tube including a port at the distal end of the catheter body, the inner tube positioned eccentric relative to the central axis of the catheter body;
a light guide disposed within the catheter body and extending from the proximal end to the distal end; and
a balloon disposed within the cavity, wherein the balloon is configured to inflate inside the cavity, wherein a portion of the inflated balloon extends outside of the cavity proximal to the distal end of the catheter body, and wherein the inflated balloon is slidably coupled with the catheter body allowing the catheter body to move relative to the inflated balloon and allowing the inflated balloon to move relative to the catheter body in a longitudinal direction of the central axis, the inflated balloon remaining proximal to the distal end of the catheter body.
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Accused Products
Abstract
Various embodiments of an eccentric balloon catheter are disclosed. In some embodiments, an eccentric balloon catheter includes an eccentrically positioned guidewire tube, with an interior lumen, that extends at least a portion of the length of the catheter body. Optical fibers may extend the length of the catheter body and may also be eccentrically positioned within the catheter body. An inflatable balloon may be positioned within a window within the catheter body near the distal end of the catheter. When inflated, the balloon and catheter may slide relative to one another. When used within a vessel, an inflated balloon may press against a vessel wall and bias the catheter toward an opposite vessel wall.
69 Citations
23 Claims
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1. A laser catheter comprising:
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a catheter body including a central axis, a distal end, a proximal end, and a cavity disposed within a periphery of the catheter body proximal to the distal end, wherein the cavity is cut through a portion of the periphery of the catheter body; an inner tube including a port at the distal end of the catheter body, the inner tube positioned eccentric relative to the central axis of the catheter body; a light guide disposed within the catheter body and extending from the proximal end to the distal end; and a balloon disposed within the cavity, wherein the balloon is configured to inflate inside the cavity, wherein a portion of the inflated balloon extends outside of the cavity proximal to the distal end of the catheter body, and wherein the inflated balloon is slidably coupled with the catheter body allowing the catheter body to move relative to the inflated balloon and allowing the inflated balloon to move relative to the catheter body in a longitudinal direction of the central axis, the inflated balloon remaining proximal to the distal end of the catheter body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A laser catheter comprising:
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a catheter body including a central axis, a distal end, a proximal end, and a window disposed on a periphery of the catheter body proximal to the distal end, wherein the window exposes a portion of an interior of the catheter body; a guidewire tube having an inner lumen located eccentrically within the catheter body and including an aperture at the distal end of the catheter body, a light guide tube having an inner lumen located eccentrically within the catheter body, the light guide tube including an aperture at the distal end of the catheter body, the light guide tube comprising a length extending from the proximal end of the catheter body to the distal end of the catheter body; at least one fiber optic disposed within the inner lumen of the light guide tube and extending the length of the light guide tube; and an inflatable balloon disposed within the window of the catheter body, wherein the inflatable balloon is configured to inflate within the window, wherein a portion of the inflated inflatable balloon extends through the window, and wherein the inflated inflatable balloon remains proximal to the distal end of the catheter body. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A laser catheter comprising:
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a catheter body including a central axis, a distal end, a proximal end, and a cavity disposed within a periphery of the catheter body proximal to the distal end, wherein the cavity is cut through a portion of the periphery of the catheter body; an inner tube including an aperture at the distal end of the catheter body, the inner tube positioned eccentric relative to the central axis of the catheter body; a light guide disposed within the catheter body and extending from the proximal end to the distal end; a balloon disposed within the cavity, wherein the balloon is configured to inflate inside the cavity, wherein a portion of the inflated balloon extends outside of the cavity proximal to the distal end of the catheter body, and wherein the inflated balloon is slidably coupled with the catheter body allowing the catheter body to move relative to the inflated balloon and allowing the inflated balloon to move relative to the catheter body in a longitudinal direction of the central axis, the inflated balloon remaining proximal to the distal end of the catheter body; and a laser coupled with the light guide.
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Specification