Shock wave tube for the fragmentation of concrements
First Claim
1. A shock wave tube for fragmenting concrements by production of shock waves, comprising:
- a coil;
a diaphragm located adjacent the coil and producing a shock wave when the coil is energized as a result of electromagnetic interaction therewith;
a housing mounted to the coil and diaphragm in a manner that a sealed chamber is bounded thereby; and
means for connecting said chamber with a low pressure source, whereby said diaphragm may be drawn towards said coil upon said connection.
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Accused Products
Abstract
In a shock wave tube for concrement fragmentation in a patient the coil is formed as a plane flat coil. A tubular connecton leads from the region between the flat coil and a diaphragm disposed before it to the suction side of a vacuum pump. During operation of the shock wave tube, the diaphragm is sucked against the flat coil. The arrangement has the advantage that a pressure chamber for pressing the diaphragm from the outside is eliminated. Therefore the shock waves need not pass through any exit windows, owing to which malfunctions due to cracks in the exit window are obviated. The shock wave tube can be designed in a very compact form in conjunction with reflectors. The reflectors preferably have a parabolic form with a focus at which the concrement of the patient is positioned.
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Citations
26 Claims
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1. A shock wave tube for fragmenting concrements by production of shock waves, comprising:
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a coil; a diaphragm located adjacent the coil and producing a shock wave when the coil is energized as a result of electromagnetic interaction therewith; a housing mounted to the coil and diaphragm in a manner that a sealed chamber is bounded thereby; and means for connecting said chamber with a low pressure source, whereby said diaphragm may be drawn towards said coil upon said connection. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification