Device and method for dilation of a tubular anatomical structure

WO2026064573A1PCT designated stage Publication Date: 2026-03-26ENDO UV TECH INC
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Filing Date
2025-09-19
Publication Date
2026-03-26

AI Technical Summary

Technical Problem

Current methods for treating occlusive disorders in tubular anatomical structures, such as arteries, often cause damage to the vessel wall and are inefficient, leading to suboptimal patient recovery and increased risk of complications like endothelial injury and vessel rupture.

Method used

A method using an optical fiber to deliver UV laser light in the form of an annular beam to stimulate nitric oxide release from smooth muscle cells, thereby dilating the tubular structure minimally invasively, reducing mechanical contact and friction during procedures like thrombectomy.

Benefits of technology

Minimizes damage to the anatomical structure and enhances the safety and efficacy of thrombectomy procedures by promoting rapid, radial, and persistent dilation of arteries, facilitating clot removal with reduced mechanical friction and improved patient recovery.

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Abstract

Described is a method and device for dilating a tubular anatomical structure. The device and method can be useful for extracting a blood clot in an artery of a mammal by concentrically irradiating an inner wall of the occluded artery using an ultraviolet (UV) laser beam delivered by an optical fiber. Dilation results from photophysical production and release of nitric oxide from the cells lining the arterial wall when UV laser light is projected as a ring beam onto the inner arterial wall.
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Citation Information

Patent Citations

  • Surgical instrument

    US20160166433A1

  • Device and method for dilation of a tubular anatomical structure

    US20230270498A1

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    US5671314A