Doppler guiding catheter using sensed blood turbulence levels

Details Doppler guiding catheter using sensed blood turbulence levels Doppler guiding catheter using sensed blood turbulence levels

2004-03-09

2010-12-14

Casler, Brian (Department: 3737)

Surgery

Diagnostic testing

Detecting nuclear, electromagnetic, or ultrasonic radiation

C600S407000, C600S437000, C600S443000, C600S448000, C600S467000

Reexamination Certificate

active

07850614

ABSTRACT:
A guiding catheter includes a Doppler sensor disposed at a distal end of a flexible shaft. The Doppler sensor can sense a blood flow turbulence level within a chamber of the heart or a blood vessel of the heart. Detecting changes in a blood flow turbulence level is used to assist guiding of the distal end of the flexible shaft. The Doppler sensor may include a piezoelectric sensor or an optical sensor. The sensor readings may be processed to show turbulence through a time domain or frequency domain presentation of velocity. The sensor readings can be used to modulate an audible waveform to indicate turbulence. The guiding catheter may further include steering apparatus enabling deflection of the distal tip.

REFERENCES:
patent: 4665925 (1987-05-01), Millar
patent: 4733669 (1988-03-01), Segal
patent: 4771788 (1988-09-01), Millar
patent: 4790323 (1988-12-01), Leavitt et al.
patent: 4850358 (1989-07-01), Millar
patent: 4920967 (1990-05-01), Cottonaro et al.
patent: 5022399 (1991-06-01), Biegeleisen
patent: 5040548 (1991-08-01), Yock
patent: 5058595 (1991-10-01), Kern
patent: 5144955 (1992-09-01), O'Hara
patent: 5190045 (1993-03-01), Frazin
patent: 5220924 (1993-06-01), Frazin
patent: 5246007 (1993-09-01), Frisbie et al.
patent: 5345940 (1994-09-01), Seward et al.
patent: 5394876 (1995-03-01), Ma
patent: 5662115 (1997-09-01), Torp et al.
patent: 5836882 (1998-11-01), Frazin
patent: 6083170 (2000-07-01), Ben-Haim
patent: 6132379 (2000-10-01), Patacsil et al.
patent: 6166806 (2000-12-01), Tjin
patent: 6167765 (2001-01-01), Weitzel
patent: 6277077 (2001-08-01), Brisken et al.
patent: 6306097 (2001-10-01), Park et al.
patent: 6325762 (2001-12-01), Tjin
patent: 6355026 (2002-03-01), Mick
patent: 6379303 (2002-04-01), Seitz et al.
patent: 6487916 (2002-12-01), Gomm et al.
patent: 6514249 (2003-02-01), Maguire et al.
patent: 6704590 (2004-03-01), Haldeman
patent: 0787977 (1997-08-01), None
patent: 0787977 (1997-08-01), None
patent: WO 93/08863 (1993-05-01), None
Office Action from U.S. Appl. No. 10/117,434 dated Mar. 13, 2003, 10 pages.

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