Apparatus for generating high frequency shock waves of which the electrical supply connection is disposed inside a tubular element, limiting or preventing electro-magnetic leakages
First Claim
1. An apparatus for generating high frequency shock waves for the remote destruction of targets, preferably constituted by biliary concretions, kidney stones or the like, comprising a shock wave generator device comprising at least two electrodes disposed at least partly in a chamber filled with a liquid;
- a source of high-voltage electric current;
an electric current supply connection means for intermittently supplying said electrodes with electric current from said source of electric current, said supply connection means comprising at least one condenser and electric conductors connecting said condenser to said electrodes for supplying intermittent electric current to the electrodes; and
a substantially closed tubular element, at least a part of said supply connection means, said part including said condenser, being disposed inside said tubular element in order to limit or prevent electromagnetic leakages.
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Accused Products
Abstract
This invention relates to an apparatus for generating high frequency shock waves, which comprises a generator of shock waves by electric discharge between at least two electrodes disposed at least in part in a chamber filled with liquid, and advantageously supplied intermittently with electric current from a source of electric current via a supply connection, the generator device allowing the focusing of the shock waves on a target, and is characterized in that the supply connection for supplying electric current to the electrodes is disposed inside a substantially closed tubular element in order to limit or prevent electro-magnetic leakages. This tubular element is preferably mounted to move in any point in space relatively to the frame and supports the shock wave generating device. Thanks to this apparatus, electro-magnetic leakages are limited or prevented and patients'"'"' safety is therefore improved.
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Citations
22 Claims
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1. An apparatus for generating high frequency shock waves for the remote destruction of targets, preferably constituted by biliary concretions, kidney stones or the like, comprising a shock wave generator device comprising at least two electrodes disposed at least partly in a chamber filled with a liquid;
- a source of high-voltage electric current;
an electric current supply connection means for intermittently supplying said electrodes with electric current from said source of electric current, said supply connection means comprising at least one condenser and electric conductors connecting said condenser to said electrodes for supplying intermittent electric current to the electrodes; and
a substantially closed tubular element, at least a part of said supply connection means, said part including said condenser, being disposed inside said tubular element in order to limit or prevent electromagnetic leakages. - View Dependent Claims (2, 3, 4, 5, 6)
- a source of high-voltage electric current;
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7. An apparatus for generating high frequency shock waves for the remote destruction of targets, preferably consistuted by biliary concretions, kidney stones or the like, comprising a frame;
- a shock wave generator device generating shock waves comprising at least two electrodes disposed at least partly in a chamber filled with a liquid;
a source of high-voltage electric current; and
an electric current supply connection means for intermmittently supplying said electrodes with electric current from said source of electric current, said supply connection means comprising at least one condenser and electric conductors connecting said condenser to said electrodes for intermittently supplying electric current to the electrodes;
a substantially closed tubular element, at least a part of said supply connection means being disposed inside said substantially closed tubular element, said tubular element being disposed vertically and being closed at its upper end by the shock wave generator device mounted thereon;
moving means for moving said tubular element and correlated shock wave generator device in any point in space relative to said frame;
a first plate, the tubular element being connected to said first plate which is mounted to move in vertical translation, along axis z;
at least one guiding member for guiding the plate in vertical translation, defining thereby an axis z of translation of the tubular element;
a second plate, said guiding member being linked to said second plate which forms part of a table mounted in said frame to move in the horizontal plane, along axes x-y;
whereby electromagnetic leakages are limited or prevented while maintaining substantially constant the length, and therefore the electrical resistance, of the electrical conductors between the condenser and the electrodes. - View Dependent Claims (8, 9, 10, 11)
- a shock wave generator device generating shock waves comprising at least two electrodes disposed at least partly in a chamber filled with a liquid;
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12. An apparatus for generating high frequency shock waves for the remote destruction of targets, preferably constituted by biliary concretions, kidney stones or the like, comprising a shock wave generator device generating shock waves comprising at least two electrodes disposed at least partly in a chamber filled with a liquid;
- a source of high-voltage electric current; and
an electric current supply connection means for intermittently supplying said electrodes with electric current from said source of electric current, said supply connection means comprising at least one condenser and electric conductors connecting said condenser to said electrodes for intermittently supplying electric current to the electrodes;
a substantially closed tubular element, at least a part of said supply connection means, comprising said condenser, being disposed inside said tubular element, said tubular element being disposed vertically and being closed at its upper end by the shock wave generator device mounted thereon; and
moving means for moving said tubular element and correlated shock wave generator device in any point in space relative to a frame for said apparatus, whereby electromagnetic leakages are limited or prevented, while maintaining substantially constant the length, and therefore the electrical resistance, of the electric conductors between the condenser and the electrodes. - View Dependent Claims (13)
- a source of high-voltage electric current; and
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14. An apparatus for generating high frequency shock waves for the remote destruction of targets such as biliary concretions, kidney stones or the like, comprising a frame;
- a shock wave generator device;
means for mounting said shock wave generator device to said frame for movement relative thereto;
said shock wave generator having at least two electrodes disposed at least partly in a chamber;
a source of electric current;
an electric current supply connection means for intermittently supplying said electrodes with electric current from said current source, said supply connection means comprising at least one condenser and electric conductors connecting said condenser to said electrodes;
a substantially closed tubular element mounted to said shock wave generator for movement therewith, at least a part of said supply connection means, said part including said condenser, being disposed inside said tubular element for reducing electromagnetic leakages. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22)
- a shock wave generator device;
Specification