As a core device for precision medicine, laser therapy equipment is widely used in scenarios such as tumor treatment, skin repair, and ophthalmic surgery. Its therapeutic effect directly depends on power supply stability, laser parameter accuracy, and electromagnetic compatibility (EMC) performance. Even minor power fluctuations (＞±1%) or wavelength deviations may lead to inaccurate treatment dosages and damage healthy tissues. Meanwhile, electromagnetic radiation generated during equipment operation, if interfering with surrounding sensitive medical devices like ECG monitors and ultrasound machines, will pose serious potential medical safety hazards. With core advantages of high-efficiency anti-interference and superior stability, LCA® feedthrough capacitors have become key components to ensure the safe and precise operation of laser therapy equipment.
In the core high-voltage power supply module, high-frequency clutter from the power grid and coupling interference from internal circuits are prone to cause unstable power supply, which directly impairs the performance of laser generators. LCA® feedthrough capacitors are connected in series at the power input terminal to form a dedicated filtering circuit, which can accurately filter out broadband high-frequency clutter ranging from 100kHz to 1GHz with an insertion loss ≥28dB, providing the laser generator with clean power supply with a ripple ≤5mV. This design ensures that the output power and wavelength of the laser are precisely controllable, avoiding the impact of energy fluctuations on therapeutic effects. It lays a solid foundation for accurate dosage control, especially in high-precision scenarios such as ophthalmic laser surgery and tumor-targeted therapy.
The control and feedback circuit serves as the “nerve center” for regulating laser treatment parameters. LCA® feedthrough capacitors are deployed in a targeted manner on key signal lines such as laser intensity adjustment and temperature monitoring. They can effectively suppress electromagnetic crosstalk, ensure the accurate transmission of parameter control commands, and provide real-time feedback on the working status of the laser, preventing treatment parameter drift caused by signal distortion. Meanwhile, these capacitors can significantly reduce electromagnetic radiation emitted by the equipment itself, avoiding interference with surrounding sensitive medical devices like ECG monitors. The product also features a wide operating temperature range (-40℃~85℃) and high insulation performance (≥10¹²Ω), minimizing the risk of electric leakage and providing comprehensive core support for the safety and reliability of laser therapy procedures.
