Method for detection of cavitations during medical application o

Details Method for detection of cavitations during medical application o Method for detection of cavitations during medical application o

1987-02-24

1989-04-11

Jaworski, Francis J.

Surgery

Truss

Perineal

128328, 12866001, A61H 100, A61B 1722, A61B 1000

Patent

active

048196215

ABSTRACT:
A method and apparatus are described for the detection of possible tissue injuries caused by cavitation during the medical application to a patient's body of high sonic energy which is generated extraneously by means of a sonic transducer for destruction of an element--for example a concretion--which is present in a target area. To detect the possible occurrence of cavitation the target area is acted upon by an acoustic test signal and a reception signal is generated from at least an initial reflection of the test signal. This signal is then examined by comparison with the test signal to detect the presence of an impedance jump leading to an attenuated reflection, so that a control signal may be generated upon detection of an impedance jump of this nature. Audible or visible warning signals may be engendered among others, and the sonic transducer may be deactivated if need be, by means of this control signal.

REFERENCES:
patent: 3934458 (1976-01-01), Beretsky et al.
patent: 4338948 (1982-07-01), Perez-Mendez et al.
patent: 4395909 (1983-08-01), Steinberg et al.
patent: 4412544 (1983-11-01), Beretsky et al.
patent: 4513750 (1985-04-01), Heyman et al.
patent: 4539989 (1985-09-01), Forssmann et al.
patent: 4586512 (1986-05-01), Do-huu et al.
patent: 4614178 (1986-09-01), Harlt et al.
patent: 4617931 (1986-10-01), Dory
patent: 4662380 (1987-05-01), Riley
patent: 4689986 (1987-09-01), Carson et al.
Sauerbruch, T. et al., "Fragmentation of Gallstones by ESW", NEJM Mar. 27, 1986, pp. 818-822.
Wells, P. N. T., "Ultrasonic Diagnosis", Academic Press, N.Y. 1977, pp. 430-435.

Affiliated with

Also associated with

Rating

Method for detection of cavitations during medical application o does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for detection of cavitations during medical application o, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for detection of cavitations during medical application o will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-659757