Extracorporeal lithotripsy apparatus with an ultrasound locating system
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United States of America Patent
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-
Jul 16, 1991
Grant Date -
N/A
app pub date -
Aug 11, 1989
filing date -
Aug 17, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An extracorporeal lithotripsy apparatus for treating a calculus in the body of a patient has a shock wave source which generates shock waves converging in a focus zone, and an ultrasound locating system having a sector applicator with which at least the focus zone can be scanned. The sector applicator includes a number of ultrasound transducers, so that a number of layers, proceeding parallel to each other, can be quasi-simultaneously scanned. The number of layers which can be scanned corresponds to the number of ultrasound transducers. The layers are directly adjacent each other so that displacement of a calculus in the body during treatment in a direction transverse to the acoustic axes of the scanned sectors can be observed.
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