Underwater electrodes for contactless lithotripsy
First Claim
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1. Underwater electrode assembly for contactless lithotripsy wherein the assembly includes first and second electrodes ending in tips facing each other to define a narrow gap the improvement comprising:
- at least one of said electrodes having a conical portion that converges towards the tip of the electrode, that conical portion being surrounded by a dielectric sleeve or ring, being in contact with surrounding water.
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Abstract
An underwater electrodes assembly for contactless lithotripsy is suggested wherein two electrodes have tips facing each other across a narrow gap and at least one, preferably both, electrodes are surrounded by sleeves or rings made of a dielectric material, such as a thermoplastic.
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Citations
8 Claims
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1. Underwater electrode assembly for contactless lithotripsy wherein the assembly includes first and second electrodes ending in tips facing each other to define a narrow gap the improvement comprising:
at least one of said electrodes having a conical portion that converges towards the tip of the electrode, that conical portion being surrounded by a dielectric sleeve or ring, being in contact with surrounding water. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An electrode assembly for contactless lithotripsy including first and second electrodes of tapering configuration ending in tips, said tips facing each other across a narrow gap, said electrodes provided for immersion and contact with water, the improvement of at least one ring or sleeve of conical configuration enveloping a part of the tapering portion of one of the electrodes and being made of a dielectric material, the dielectric constant being significantly different from the dielectric constant of water.
Specification