Surgery – Instruments – Means for concretion removal
Patent
1990-08-28
1992-05-26
Cohen, Lee S.
Surgery
Instruments
Means for concretion removal
51 59SS, 604 22, A61B 1722
Patent
active
051163438
ABSTRACT:
A device is disclosed for the disintegration of concretions in body cavities. The device comprises at least one piezoelectric transducer element, for connection to a generator. The transducer element is connected between a reflector and a horn. Ultrasonic waves generated by the transducer element are directed by means of a sonotrode, to a concretion to be destroyed. At least the horn is provided with surface depressions which do not run parallel to its axis of symemtry, for the generation of transverse and rotational oscillations.
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Ams Felix
Bolg Ulrich
Zanger Ulf
Cohen Lee S.
Pfaffle K. M.
Richard Wolf GmbH
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