Contactless comminution of concrements

Details Contactless comminution of concrements Contactless comminution of concrements

1986-07-11

1989-02-28

Rosenbaum, C. Fred

Surgery

Truss

Pad

A61B 1700

Patent

active

048076279

ABSTRACT:
Contactfree comminution of concrements in the body of a living being by means of focused shock waves, there being an axis on which a concrement is located; the improvement relates to controlling the production of shock waves (a) spherically such that the shock wave pressure amplitude decreases with radial distance from said axis and (b) temporally such that the amplitudes rise steeply at first and decay relatively slowly after having passed through a maximum.

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Lehmann, J. F., Theraputic Heat and Cold, 3rd Edition, 1982, pp. 365 to 377.
Choussey, Extracorporeal Shock Wave Lithotripsy, p. 4, 1978.

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