Urine-leakage-prevention and blockage-prevention catheter

Abstract

The invention discloses a urine-leakage-prevention and blockage-prevention catheter, which comprises a catheter body and a guide wire, wherein the center of the catheter body is a urine discharging passage; the front section of the catheter body is provided with a self-expansion opening section; the front end of the self-expansion opening section is provided with a cap-shaped front blind end; the middle section of the catheter body is provided with a urine-leakage-prevention air bag; an anti-sliding air bag is arranged between the urine-leakage-prevention air bag and the self-expansion opening section; the urine-leakage-prevention air bag and the anti-sliding air bag are connected to a multi-passage air bag inflating connector arranged at the back section of the catheter body through an inflating passage; the self-expansion opening section is connected with a flushing and medication connector arranged at the back section of the catheter body through a flushing and medication integral passage; the back end of the catheter body is a drainage outlet; and the drainage outlet is provided with an opening sealing cap. The urine-leakage-prevention and blockage-prevention catheter has the advantages that the complete blockage probability of the catheter caliber part is reduced; the injury on the human body is reduced; the retention of harmful urine in the bladder is reduced; and the mucomembranous avascular necrosis injury due to long-time compression of the urethra inner wall tissue by the air bag in the same position is avoided.

Description

technical field [0001] The invention relates to a urinary catheter, in particular to a urinary catheter that prevents urine leakage and blockage, and belongs to the technical field of clinical medicine. Background technique [0002] The urinary catheter is a tube made of silica gel, which can be inserted into the bladder through the urethra to drain urine. After the catheter is inserted into the bladder, there is a balloon near the tip of the catheter to fix the catheter in the bladder. , It is not easy to come out, and the drainage tube is connected to the urine bag to collect urine. Urinary catheters are widely used in clinical work, such as poor urine excretion caused by coma, paraplegia, urinary retention, post-urological surgery, and bladder urethral tumors. [0003] At present, the commonly used urinary catheter is inserted into the bladder along the urethra, then inflated (or filled with water) through the "air bag inflation port", and the air bag expands and is stuc...

AI Technical Summary

Problems solved by technology

However, this design suffers from the same drawbacks as the previous patent

[0013] The above-mentioned prior art does not solve the problem of urinary catheter blockage: no matter whether it is an empty needle pressurized to dredge, or a filter screen device is installed outside the side hole, the real urine outflow diameter is still the side hole at the front end of the catheter. The effective area for urine diversion is still small

[0017] While the existing technology is dealing with the problem of "urinary leakage", serious complications have been brought: once the catheter is inserted, the single leak-proof baffle or the balloon device in the urethra has been pressed against the inner wall of the urethra. Over time, the mucosa is prone to ischemia, necrosis or fibrosis, followed by various serious complications: such as urethral perforation, stricture, adhesion, etc.

Therefore, in view of the physiological structural characteristics of the urethra, the existing anti-"urine leakage" technology oppresses the inner wall of the urethra for a long time, which will cause serious complications

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