Blood flow determination

Details Blood flow determination Blood flow determination

1994-02-16

1996-12-31

Weiss, John G.

Surgery

Truss

Pad

128664, 128665, A61B 502

Patent

active

055884377

ABSTRACT:
A method of determination of blood flow including projecting a beam (B) of laser generated light (L) to move (SM) over a surface (T) beneath which blood flow in a vessel or vascular bed is to be determined, collecting (RD)light returning scattered from the beam by the surface and by blood flowing beneath, measuring a spectrum of frequencies in said collected light, determining (DA),(F) from differences in said frequencies blood flow (VS) in a vessel or vascular bed beneath said surface. A reference for the detected frequencies is provided by light returned from the surface. A map of blood flow in a false-colour flow scale can be displayed(DU).

REFERENCES:
patent: 3724932 (1973-04-01), Cornsweet et al.
patent: 4109647 (1978-08-01), Stern et al.
patent: 4579430 (1986-04-01), Bille
patent: 4641668 (1987-02-01), Namekawa
patent: 4862894 (1989-09-01), Fuji
patent: 5081998 (1992-01-01), Yelderman et al.
patent: 5115137 (1992-05-01), Anderson-Engels et al.
Rushmer, "Blood Flow Measurement: Future Applications and Prospects"; Medical Instrumentation; 1977, pp. 170-173.
Fairs et al; "Limb Perfusion in the Lower Limb Amputee-a Comparative Study Using a Laser Doppler Flowmeter and a Transcutaneous Oxygen Electrode"; Prosthetics and Orthotics International; 1987, pp. 80-84.
P. C. Williams, et al, Mapping Of Cerebral Cortical Strokes in Rhesus Monkeys By Laser Doppler Spectroscopy, vol. 13, No. 2, dated 1980, pp. 4-5 .

Affiliated with

Also associated with

Rating

Blood flow determination does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Blood flow determination, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Blood flow determination will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1135266