Permanent-magnet-type shock wave generating device

Abstract

The invention provides a permanent-magnet-type shock wave generating device. The permanent-magnet-type shock wave generating device comprises a cup body, a water bag, a vibration film, a permanent-magnet vibration body, a base and a coil, the water bag is arranged on the cup body, the vibration film is arranged under the water bag, the permanent-magnet vibration body is fixedly arranged under thevibration film, and the base is arranged in the cup body; the coil is arranged on the base, and is arranged on the periphery of the permanent-magnet vibration body in a winding mode; and when the coilis energized, a magnetic field with the same polarity direction as the permanent-magnet vibration body is generated. Under the action of the magnetic field of the coil, the permanent-magnet vibrationbody is subjected to the push force with the upward direction of the central axis of the coil, thus the vibration film can generate pulse vibration and form shock wave under the drive of the permanent-magnet vibration body. According to the permanent-magnet-type shock wave generating device, the service life of a product can be effectively prolonged, the reliability and safety are improved, and because the coil and the permanent-magnet vibration body are not in direct contact with the vibration film, a water circulation system is not needed for heat dissipation.

Description

technical field [0001] The invention relates to a medical shock wave generating device, in particular to a permanent magnet type shock wave generating device. Background technique [0002] Shock wave is a mechanical wave produced by sudden release in a confined space in gas or liquid. Its essence is a kind of energy transmission process. It has been widely used in clinical medicine now, mainly for the treatment of urinary stones, hepatobiliary system Calculus, fracture nonunion, femoral head necrosis, aseptic soft tissue injury and the pain caused by it, erectile dysfunction and cardiovascular function and other diseases. The existing electromagnetic shock wave source consists of a cup body, an electromagnetic disk, a lens and a water bag. The electromagnetic disk is fixedly installed at the bottom of the cup as a device for generating shock waves; a lens is arranged in the middle of the cup as a device for changing the direction of shock wave propagation; a water bag is ar...

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Problems solved by technology

[0003] But the shock wave vibration energy of the prior art has high requirements on current and voltage, so that its service life and reliability have corresponding limitations. Large, and the coil is set close to the diaphragm, then the heat generated by its heating will be directly transferred to the propagation medium (such as: water), and then transferred to the human body. Therefore, a water circulation system needs to be installed in the water bag to achieve heat dissipation; Third, the electromagnetic shock wave source in the prior art has relatively high requirements on the supporting power supply

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