Ureteral catheter and use method

Abstract

The invention relates to the technical field of medical machinery, and particularly discloses a ureteral catheter and a using method.The ureteral catheter comprises a catheter body, a one-way valve and a three-way valve, a first cavity and a second cavity are formed in the catheter body, the first cavity is provided with a first inlet and a first outlet, and the second cavity is provided with a second inlet and a second outlet; the side, close to the first outlet, of the catheter is provided with a balloon wrapping the second outlet, the one-way valve is communicated with the balloon through the second cavity channel and used for pressurizing or depressurizing the balloon, and the three-way valve is communicated with the first cavity channel and comprises a water injection port and a pressure measuring port. The three-way valve is further provided with a three-way handle used for adjusting unblocking and blocking of the water injection opening and the pressure measuring opening. The puncture success rate of a PCN operation can be greatly increased, the calculus removing efficiency is also improved, anti-inflammatory drugs can be poured into the kidney of a patient through the three-way valve, and a better treatment effect can be achieved for the patient suffering from kidney tumor or inflammation.

Description

technical field [0001] The invention relates to the technical field of medical machinery, in particular to a ureteral catheter and a use method. Background technique [0002] In percutaneous nephrolithotomy (PCN) surgery, percutaneous nephrostomy and other surgeries, successful puncture is the key to the surgery. It is common clinically that the hydronephrosis in the renal pelvis is not obvious, and it is difficult to see the water with a single needle, and the effective space in the renal pelvis is narrow. In the past, the normal ureteral catheter was used to fill the normal saline or contrast medium, and after the bladder was filled, the water was forced into the kidney through reverse flow, but the effect of hydronephrosis produced by this method was not ideal, the success rate of puncture was low, and there was a risk of surgery. higher. SUMMARY OF THE INVENTION [0003] The present invention aims to provide a ureteral catheter and a method of use to solve the above-...

AI Technical Summary

Problems solved by technology

Clinically, the hydrops in the renal pelvis are not obvious, and it is difficult to see the water clearly, and the effective space in the renal pelvis is narrow. After puncture and implantation of the guide wire, it is easy to cause the guide wire to protrude and the channel to be lost, which eventually leads to the failure of the operation.

In the past, ordinary ureteral catheters were used to fill with normal saline or contrast medium. After the bladder was filled, the water was pressed into the kidneys through countercurrent flow. However, the effect of hydronephrosis produced by this method was not ideal, the success rate of puncture was low, and there were surgical risks. higher

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