Other

Miravant Systems, Inc.

Miravant Medical Technologies, Inc.

Steven John Rychnovsky

John S Hill

W Patrick Stephens

Jeffrey A Vasek

C T Lo Blong

Jeffrey P Walker

John A Franco

Christina Ann Waters

Heidi Nielsen

The present invention provides improved light delivery catheters for use in therapeutic methods, such as PDT, that require illumination of target tissue within a blood vessel or other hollow body organ. An improved catheter includes an optical fiber that transmits light from a light source at the proximal end of the catheter shaft to a light treatment zone. An occlusion balloon on the distal end of the catheter shaft adjacent to the light treatment zone receives fluid via an inflation lumen in the catheter shaft. An infusion lumen connects with a plurality of infusion ports at the light treatment zone to deliver infusion fluid to the hollow body organ so that blood can be flushed from the region between the light treatment zone and target tissue.

Light delivery catheter

A method in which photodynamic therapy is employed to inhibit, stabilize or reduce occlusions within the cardiovascular system by utilizing light within the spectral region of approximately 390 to approximately 610 nm.

Method for improving treatment selectivity and efficacy using intravascular photodynamic therapy

A method for inhibiting or suppressing stenosis associated with an arteriovenous access. A dosage of photosensitive compound is introduced into the artery or vein. An anastomotic area of the artery or vein is then exposed to a source of light having a wavelength suitable for photoactivating the photosensitive compound for a period of time sufficient to provide a therapeutic effect. A method is also described for the delivery of drugs into the anastomotic site of an AV access to inhibit the formation of stenotic lesions at those sites.

Methods for inhibiting or suppressing stenosis of arteriovenous access fistulas and grafts

Growing community of inventors

Santa Barbara, CA, United States of America

Steven John Rychnovsky