Three-way catheter joint for preventing backflow

Abstract

The invention discloses a three-way catheter joint for preventing backflow, and relates to a medical instrument. The three-way catheter joint comprises a T-shaped joint body, and a catheter connector, a urine collecting bag connector and a sampling connector are formed in the joint body. The catheter connector is gradually enlarged in the flowing direction, a fixed ring and a ball are arranged in the catheter connector, the ball is located on the inlet side of the catheter connector, and a compression spring is arranged between the ball and the fixed ring. Twisted grain is arranged on the outer surface of the catheter connector; a movable inserting part is further arranged on the joint body, the tail end of the inserting part is located in the sampling connector, and the beginning end of the inserting part penetrates through the joint body to the outside. A through hole communicated with the catheter connector and the urine collecting bag connector is formed in the inserting part; an inclined gap is formed in the tail end of the inserting part and located in the catheter connector side. The three-way catheter joint is simple in structure and good in sealing performance, sampling is convenient, and leakage and backflow of urine are effectively avoided.

Description

technical field [0001] The invention relates to a medical appliance, in particular to a three-way anti-reflux catheter joint. Background technique [0002] At present, when nursing patients in the Department of Nephrology after surgery, due to the inconvenient movement of the patient, the urine in the patient's body needs to be discharged through a catheter, but the doctor will sample the patient's urine every day during the entire treatment process. Therefore doctors generally directly sample from the urine bag, and this sampling method has the following disadvantages; Therefore, it will affect the test results; 2. When taking a urine sample with a test tube, the urine will be in contact with the air for a long time, so it will be polluted by the germs in the air, thereby affecting the test results. Dropping on the ground pollutes the environment in the ward, and the second is that the urine is easy to splash during the inspection process; 3. When the patient is not paying...

AI Technical Summary

Problems solved by technology

[0002] At present, when nursing patients in the Department of Nephrology after surgery, due to the inconvenient movement of the patient, the urine in the patient's body needs to be discharged through a catheter, but the doctor will sample the patient's urine every day during the entire treatment process. Therefore doctors generally directly sample from the urine bag, and this sampling method has the following disadvantages; Therefore, it will affect the test results; 2. When taking a urine sample with a test tube, the urine will be in contact with the air for a long time, so it will be polluted by the germs in the air, thereby affecting the test results. Dropping on the ground pollutes the environment in the ward, and the second is that the urine is easy to splash during the inspection process; 3. When the patient is not paying attention, the urine in the urine bag is easy to flow back into the catheter, causing the patient's secondary infection

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