Steerable catheter having steering fins

Details Steerable catheter having steering fins Steerable catheter having steering fins

2005-08-02

2005-08-02

Smith, Ruth S. (Department: 3737)

Surgery

Diagnostic testing

Detecting nuclear, electromagnetic, or ultrasonic radiation

C600S300000, C600S473000, C600S478000, C128S897000

Reexamination Certificate

active

06925320

ABSTRACT:
A lumen wall of a blood vessel, such as a coronary artery, is imaged by inserting a catheter into the vessel and emitting near-IR radiation toward the lumen wall through a side window formed in the catheter. Blood flowing through the vessel is caused to react with a fin arrangement formed on a body of the catheter to displace the window toward a region of the lumen wall opposing the window in order to minimize the amount of blood that is interposed between the window and the lumen wall. Thus, the amount of radiation that is scattered or absorbed by the blood is minimized.

REFERENCES:
patent: 3626950 (1971-12-01), Schulte
patent: 5445157 (1995-08-01), Adachi et al.
patent: 5486208 (1996-01-01), Ginsburg
patent: 6178346 (2001-01-01), Amundson et al.
patent: 6565536 (2003-05-01), Sohn
patent: 2002/0183620 (2002-12-01), Tearney et al

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