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Patent applications and USPTO patent grants for Frazin; Leon J..The latest application filed is for "method and apparatus for using doppler guidance to locate a catheter across a stenotic aortic valve".
Patent | Date |
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Method and Apparatus for Using Doppler Guidance to Locate a Catheter Across a Stenotic Aortic Valve App 20200093461 - Frazin; Leon J. | 2020-03-26 |
Method and apparatus for imaging internal organs and vascular structures through the gastrointestinal wall Grant 5,931,788 - Keen , et al. August 3, 1 | 1999-08-03 |
Method and apparatus of localizing an insertion end of a probe within a biotic structure Grant 5,836,882 - Frazin November 17, 1 | 1998-11-17 |
Method for two dimensional real time color doppler ultrasound imaging of bodily structures through the gastro intestinal wall Grant 5,394,878 - Frazin , et al. March 7, 1 | 1995-03-07 |
Doppler-guided retrograde catheterization using transducer equipped guide wire Grant 5,220,924 - Frazin * June 22, 1 | 1993-06-22 |
Method and device for doppler-guided and imaged retrograde catheterization Grant 5,190,045 - Frazin March 2, 1 | 1993-03-02 |
Method and device for doppler-guided retrograde catheterization Grant 5,038,789 - Frazin August 13, 1 | 1991-08-13 |
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