Continuous negative pressure suction device for ureteroscope holmium laser lithotripsy

The utility model provides a continuous negative pressure suction device for ureteroscope holmium laser lithotripsy. A continuous negative pressure suction device for ureteroscope holmium laser lithotripsy comprises a three-way infusion apparatus; the liquid suction hose is arranged at one end of the three-way infusion apparatus in a sleeving manner; the ureteral catheter is fixedly mounted at oneend of the three-way infusion apparatus, and the ureteral catheter is communicated with the three-way infusion apparatus; the first sealing cap is arranged on the three-way infusion apparatus and theureteral catheter in a sealing and sleeving mode; second sealing cap. The lithotripsy device has the advantages of being low in cost, convenient to use, capable of keeping a good visual field, improving lithotripsy efficiency, shortening operation time, preventing calculus from moving upwards, improving calculus removing rate, reducing renal pelvis pressure, reducing infection risks, reducing possibility of dropping due to pulling of the liquid suction hose and guaranteeing smooth operation.