Extracorporeal shock wave lithotripter and charge-discharge circuit for same

An extracorporeal shock wave, charging and discharging circuit technology, applied in the field of medical devices, can solve problems such as human soft tissue damage, and achieve the effect of reducing damage
CN103536339AActive Publication Date: 2014-01-29SUZHOU XIXIN MEDICAL INSTR
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SUZHOU XIXIN MEDICAL INSTR
Publication Date
2014-01-29

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Abstract

The invention discloses an extracorporeal shock wave lithotripter and a charge-discharge circuit for same. The extracorporeal shock wave lithotripter comprises a shock wave generation device which comprises a charging circuit and a discharging circuit; the charging circuit is formed by a resistor and a capacitor; the discharging circuit is formed by the capacitor, a high voltage switch and a shock wave source device; the capacitance of the capacitor is 1.5 to 2.5 microfarads; the focus pressure peak of the shock wave generated through discharging on the shock wave source device through the capacitor is 6 to 30 MPa; the bottom pulse width is 3 to 4 microseconds. The extracorporeal shock wave lithotripter has the advantages of enabling generated shock wave to be wide in bottom pulse and smooth in pressure, enabling the focus pressure peak of the shock wave to be small, enabling calculus to be fragmented through stress concentration and meanwhile reducing side effect to human bodies.
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Description

technical field

[0001] The invention relates to the field of medical devices, in particular to an extracorporeal shock wave lithotripter and a charging and discharging circuit for the extracorporeal shock wave lithotripter. Background technique

[0002] With the development of medical technology, more and more extracorporeal shock wave lithotripters are being used. In order to crush the stones in the body more thoroughly, the focus pressure of the shock wave is designed have to Higher and higher. However, what this brings is that the pressure of the shock wave exceeds the tolerance limit of the soft tissue of the human body, causing damage to the soft tissue of the human body. Therefore, how to provide an extracorporeal shock wave lithotripter with little or no damage to the human body is an urgent problem to be solved at present. Contents of the invention

[0003] The object of the present invention is to provide an extracorporeal shock wave lithotripter, which can red...

Claims

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