Ultrasonic diagnostic apparatus

Details Ultrasonic diagnostic apparatus Ultrasonic diagnostic apparatus

1989-07-11

1990-11-27

Jaworski, Francis

Surgery

Truss

Pad

12866005, A61B 800

Patent

active

049728385

ABSTRACT:
The present invention relates to a technique for setting a sample point in a pulse Doppler scan in a linear scan type ultrasonic diagnostic apparatus. A transmitting/receiving system for transmitting/receiving a linear scan of ultrasonic beams to/from a subject includes a linear scan probe, a pulser, a preamplifier, a receiving delay line and a summing circuit, as well as a sample point setter and a deflection angle setting circuit. The ultrasonic diagnostic apparatus includes a control system for fixing the initially set position of the sample point in the subject, when the deflection angle is reset by the deflection angle setting circuit, and for changing a set value of the sample point setting circuit so that the fixed position of the sample point coincides with a sample point of an ultrasonic beam to be propagated based on the reset deflection angle, and an image system having at least a D-mode processor for frequency-analyzing a received signal corresponding to the sample point to find a Doppler deviation frequency fd, and calculating bloodstream velocity data of the subject from the found doppler deviation frequency fd.

REFERENCES:
patent: 4398540 (1983-08-01), Takemura et al.
patent: 4416286 (1983-11-01), Iinuma et al.
patent: 4501277 (1985-02-01), Hongo
patent: 4787395 (1988-11-01), Yamashina et al.
patent: 4790322 (1988-12-01), Iinuma
patent: 4817619 (1989-04-01), Sugiyama et al.
patent: 4873985 (1989-10-01), Nakajima

Affiliated with

Also associated with

Rating

Ultrasonic diagnostic apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1026439