Pressure pulse source having a positive lens with a pressure sen

Details Pressure pulse source having a positive lens with a pressure sen Pressure pulse source having a positive lens with a pressure sen

1991-09-13

1993-12-14

Smith, Ruth S.

Surgery

Truss

Perineal

367150, 367175, A61B 1722

Patent

active

052692922

ABSTRACT:
A pressure pulse source, of the type suitable for generating shockwaves, has a positive lens for focusing the pressure pulses onto a focal zone. The positive lens has an acoustic exit face which has a shape, in a focusing zone, for focusing the pressure pulses and a shape, in at least one measurement zone, which deviates from the shape in the focusing zone. A pressure sensor containing a piezoelectric polymer foil is disposed at the measurement zone. The pressure sensor, or a number of such pressure sensors, generate signals which are used to monitor the pressure pulses emerging from the positive lens, such as by acquiring their peak value.

REFERENCES:
patent: 4674505 (1987-06-01), Pauli et al.
patent: 4725989 (1988-02-01), Granz et al.
patent: 4834074 (1989-05-01), Reichenberger
patent: 5009232 (1991-04-01), Hassler et al.

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