Shock wave tube for the fragmentation of concrements

Details Shock wave tube for the fragmentation of concrements Shock wave tube for the fragmentation of concrements

1985-12-11

1987-10-06

Thaler, Michael H.

Surgery

Truss

Pad

A61B 1722

Patent

active

046975888

ABSTRACT:
In a shock wave tube for concrement fragmentation in a patient the coil is formed as a plane flat coil. A tubular connecton leads from the region between the flat coil and a diaphragm disposed before it to the suction side of a vacuum pump. During operation of the shock wave tube, the diaphragm is sucked against the flat coil. The arrangement has the advantage that a pressure chamber for pressing the diaphragm from the outside is eliminated. Therefore the shock waves need not pass through any exit windows, owing to which malfunctions due to cracks in the exit window are obviated. The shock wave tube can be designed in a very compact form in conjunction with reflectors. The reflectors preferably have a parabolic form with a focus at which the concrement of the patient is positioned.

REFERENCES:
patent: 1730531 (1929-10-01), Robbins
patent: 4526168 (1985-07-01), Hassler et al.

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