05423321 is referenced by 79 patents and cites 4 patents.

A method and apparatus is provided for reducing the danger of cutting into a passage or organ of the body during a surgical procedure by inserting a catheter into the passage or organ, the catheter having interiorly thereof an infrared radiator and employing an infrared detection system that produces a detectable signal indicative of the proximity of an infrared probe to the passage or organ the proximity of the probe to the passage or organ being a function of the approach of the surgical procedure to the passage or organ. The position of the infrared source and the probe may be reversed. Further a system for viewing the sight of the procedure and displaying the body into which the catheter is inserted is provided.

Detection of anatomic passages using infrared emitting catheter
Application Number
Publication Number
Application Date
February 2, 1994
Publication Date
June 13, 1995
Mark G Fontenot
229 Marilyn Dr., Lafayette, 70503
Howard L Rose
A61B 5/00
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