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Title: Tri-functional cannula for retinal endovascular surgery

Patent ·
OSTI ID:992996

A tri-functional cannula combines the functions of tissue Plasminogen Activator (tPA) solution delivery, illumination and venous pressure measurement. The cannula utilizes a tapered hollow-core optical fiber having an inlet for tPA solution, an attached fiber optic splitter configured to receive illumination light from an optical source such and a LED. A window in the cannula transmits the light to and from a central retinal vein. The return light is coupled to an optical detector to measure the pressure within the vein and determine whether an occlusion has been removed.

Research Organization:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC04-94AL85000
Assignee:
The United States of America as represented by the United States Department of Energy (Washington, DC)
Patent Number(s):
7,763,009
Application Number:
12/034,142
OSTI ID:
992996
Country of Publication:
United States
Language:
English

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