Lithotriptor with reduced attenuation x-ray locating system

Details Lithotriptor with reduced attenuation x-ray locating system Lithotriptor with reduced attenuation x-ray locating system

1990-08-28

1991-10-29

Smith, Ruth S.

Surgery

Truss

Perineal

12866003, 378 62, 378145, A61B 1722

Patent

active

050606344

ABSTRACT:
In a lithotriptor a shock wave transducer is provided with a focussing cup and with a forward section containing a coupling medium shut off by means of a diaphragm for application to a patient's body. In the wall of the cup there is mounted a locating system comprising an x-ray emitter the outlet of which is located in the coupling medium. The outlet is closed by means of a balloon which can be filled with gas and which can be evacuated. When the balloon is filled with gas, it expands in the direction of radiation of the x-rays up to or almost up to the diaphragm of the forward section.

REFERENCES:
patent: 3891845 (1975-06-01), English
patent: 3993906 (1976-11-01), English
patent: 4539989 (1985-09-01), Forssmann et al.
patent: 4705026 (1987-11-01), Chaussy et al.
patent: 4936291 (1990-06-01), Forssmann et al.
"Dornier Nierenlithotripter", Brochure No. ZMV207-84035000 of Dornier System GmbH Medizintechnik (Jul. 1982).

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