EP 0349915 A1 19900110 - Method and apparatus for adjusting the spark gap of a non-invasive lithotriptor.
Title (en)
Method and apparatus for adjusting the spark gap of a non-invasive lithotriptor.
Title (de)
Verfahren und Vorrichtung zum Anpassen der Funkenstrecke eines berührungsfreien Lithotriptors.
Title (fr)
Méthode et dispositif pour ajuster l'écartement des électrodes d'un lithotriteur extra-corporel.
Publication
Application
Priority
CS 477188 A 19880701
Abstract (en)
The proper distance of tips (3, 4) of electrodes of an aqueous spark gap of a generator of shock waves for non-invasive lithotrypsis is determined on the basis of measured time intervals required from the moment of starting of charging of the functional capacitor or from the moment of its partial charging up to the moment of discharge of the aqueous spark gap, which time interval has to be for a proper operation within limits of predetermined tmin and tmax.
IPC 1-7
IPC 8 full level
A61B 17/22 (2006.01); G10K 15/06 (2006.01)
CPC (source: EP)
G10K 15/06 (2013.01)
Citation (search report)
- [A] FR 2605874 A1 19880506 - UNIV KARLOVA [CS]
- [A] FR 2593382 A1 19870731 - TECHNOMED INT SA [FR]
- [A] US 3418510 A 19681224 - MELHART LEONARD J
Designated contracting state (EPC)
DE FR NL
DOCDB simple family (publication)
EP 0349915 A1 19900110; EP 0349915 B1 19940119; CS 270064 B1 19900613; CS 477188 A1 19891013; DE 68912424 D1 19940303; DE 68912424 T2 19940511; JP H02154749 A 19900614
DOCDB simple family (application)
EP 89111918 A 19890630; CS 477188 A 19880701; DE 68912424 T 19890630; JP 16832189 A 19890701