Reduced profile and enhanced flexibility delivery catheters for light activated agents
AssigneeAbbott Cardiovascular Systems Inc.
InventorsWilliam E. WEBLER, JR., Richard R. Newhauser
Life of this patent
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Abstract
A delivery catheter for delivery, then photo-activation of photo sensitive material has a photo-sensitive substance-delivery part and an activation part. The catheter delivers substances such as biomaterials to a target site, followed by illumination of the target using optics located at the distal tip of the catheter which are optically coupled to an extracorporeal light source. The light may be delivered by a single or multi-lumen needle, or a separate light guide passed over the catheter.
Claims11
A method for treating tissue, the method comprising:
- placing a catheter distal end adjacent the tissue, the catheter including a needle tip and a light-emitting portion;
- embedding the needle tip into the tissue;
- dispensing a photo-sensitive substance into the tissue;
- displacing the light emitting portion to enable light from the light emitting portion to reach the tissue, and
- photo-activating the substance in the tissue using the light from the light emitting portion.
A method for treating tissue, the method comprising:
- disposing a catheter tip adjacent the tissue;
- injecting a photo-sensitive substance into the tissue from a tip of a needle;
- and
- transmitting light energy to the tissue using the tip of the needle.
Dependencies are inferred from the claim text.