Medical laser optical fiber water passing protective sleeve channel assembly

The utility model discloses a medical laser optical fiber water passing protective sleeve channel assembly which comprises a water passing protective sleeve, a conical positioning sleeve, an end face protective tube and a flushing hose. The water passing protection sleeve is located outside the laser optical fiber, the end face protection tube is connected to the front end of the water passing protection sleeve, and the conical positioning sleeve is connected between the end face protection tube and the laser optical fiber; the flushing hose is communicated and hermetically connected with the rear end of the water passing protective sleeve and is used for connecting a flushing infusion apparatus; wherein the conical positioning sleeve comprises a small-end supporting sleeve, a conical filter screen and a large-end supporting sleeve which are connected in sequence. According to the water passing protective sleeve channel assembly, the conical positioning sleeve is arranged at the front end of the water passing