Light delivery system with blood flushing capability
AssigneeIllumenex Corporation
InventorsCurtis A. Amplatz, Mark A. Rydell, Robert J. Ziebol, Christopher H. Porter, Michael Kasinkas
Life of this patent
Estimating the term…
Abstract
A light delivery system for use in irradiating vascular tissue includes a balloon catheter with a working lumen for receiving an optical fiber therein and an inflation/flushing lumen adapted to receive a liquid at a proximal end and leading to a space defined within the balloon member attached to a distal end of the catheter. The balloon member has a pattern of holes or pores in the wall thereof through which the saline may flow when the balloon is inflated, causing any blood or other absorbing substances that may interfere with good radiant energy transmission to be flushed away from the treatment site.
Claims3
A light delivery system for irradiating an internal surface of a blood vessel with light energy, comprising:
- (a) an elongated, flexible, tubular body member having a proximal end, a distal end portion and a working lumen and an inflation lumen extending from a hub member on the proximal end to the distal end portion thereof;
- (b) an expansible, elongated, balloon member coaxially disposed on and bonded to the body member near the distal end portion, with the inflation lumen being in fluid communication with an interior of the balloon member, the balloon member including a plurality of pores of a predetermined size extending through a wall surface thereof;
- (c) a waveguide having a proximal end connectable to a source of light energy and a distal end including a light diffusing member, the waveguide sized to fit through the working lumen of the body member such that the light diffusing member can be advanced into the distal end portion of the body member spanned by the balloon member;
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- (d) means for removing blood that may enter the balloon member.
A light delivery system for irradiating an internal surface of a blood vessel with light energy, comprising:
- (a) an elongated, flexible, tubular body member having a proximal end, a distal end portion and a working lumen and an inflation lumen extending from a hub member on the proximal end to the distal end portion thereof;
- (b) an expansible, elongated, balloon member coaxially disposed on and bonded to the body member near the distal end portion, with the inflation lumen being in fluid communication with an interior of the balloon member, the balloon member including a plurality of pores of a predetermined size extending through a wall surface thereof;
- (c) a waveguide having a proximal end connectable to a source of light energy and a distal end including a light diffusing member, the waveguide sized to fit through the working lumen of the body member such that the light diffusing member can be advanced into the distal end portion of the body member spanned by the balloon member;
- (d) a perfusion lumen in the tubular body member for permitting blood to flow past the balloon member while it is inflated.
Dependencies are inferred from the claim text.