EP 0300315 B1 19920408 - SHOCK WAVE GENERATOR FOR AN APPARATUS FOR NON-CONTACT DISINTEGRATION OF CONCREMENTS, PRESENT IN A BODY
Title (en)
SHOCK WAVE GENERATOR FOR AN APPARATUS FOR NON-CONTACT DISINTEGRATION OF CONCREMENTS, PRESENT IN A BODY
Publication
Application
Priority
DE 8710118 U 19870723
Abstract (en)
[origin: EP0300315A1] The shock wave generator has a fluid-filled housing (9) with an outlet aperture (10) for shock waves and a shock wave source (12, 13, 14) arranged opposite this aperture, and means (18) for focusing the shock waves on a focus F, a plate-shaped body (19) being arranged between the shock wave source (12, 13, 14) and the focus F, and possessing a cross-sectional surface area less than that of a shock wave emanating from the shock wave source (12, 13, 14). The plate-shaped body (19) is made from a material whose acoustic impedance essentially corresponds to that of the fluid, and in which the speed of sound propagation differs from that in the fluid. <IMAGE>
IPC 1-7
IPC 8 full level
G10K 9/12 (2006.01); G10K 11/02 (2006.01); G10K 11/30 (2006.01)
CPC (source: EP US)
G10K 11/02 (2013.01 - EP US); G10K 11/30 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
EP 0300315 A1 19890125; EP 0300315 B1 19920408; DE 3869861 D1 19920514; DE 8710118 U1 19881117; JP H0446731 Y2 19921104; JP S6417217 U 19890127; US 4972826 A 19901127
DOCDB simple family (application)
EP 88111054 A 19880711; DE 3869861 T 19880711; DE 8710118 U 19870723; JP 9691788 U 19880720; US 22109488 A 19880719