Urinary catheter

Abstract

The invention discloses a urinary catheter, and relates to the technical field of medical instruments. The urinary catheter comprises a catheter body and a front blind end; the center of the catheter body is a urine discharge channel, and a plurality of garlic clove-shaped balloons used for preventing dropping are arranged between the inner end of the catheter body and the front blind end; a urine guide opening communicating with the urine discharge channel is formed between every two adjacent garlic-clove-shaped balloons; and an inflation connector arranged on the catheter body communicates with the multiple garlic-clove-shaped balloons through a balloon inflation channel. The effective area of a urine outlet is increased, blockage is prevented, meanwhile, part of blood clots, small stones and the like can be drained, the urine guide opening and the garlic-clove-shaped balloons are integrated, the position of the urine guide opening in the bladder opening is lowered, drainage is sufficient, the residual urine amount is reduced, and the urine leakage probability is reduced.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a urinary catheter. Background technique [0002] Urinary catheter is a tubular medical device that is inserted into the bladder through the urethra to drain urine. Urinary catheters are widely used in clinical work, such as coma, paraplegia, urinary retention, urological surgery, bladder and urethral tumors, etc. Fluid drainage is not smooth. After the catheter is inserted into the bladder, there is a balloon near the inner end of the catheter to fix the catheter in the bladder so that it is not easy to come out, and the drainage tube is connected to a urine bag to collect urine. During the use of the urinary catheter, the urinary catheter is often blocked, especially for the formation of blood clots, urinary calculi, or the formation of more purulent and viscous secretions in the upper urinary tract due to postoperative wound bleeding. For patients, once the urinary c...

AI Technical Summary

Problems solved by technology

During the use of the urinary catheter, the urinary catheter is often blocked, especially for the formation of blood clots, urinary calculi, or the formation of more purulent and viscous secretions in the upper urinary tract due to postoperative wound bleeding. For patients, once the urinary catheter is blocked, the urine or flushing fluid cannot be drained out of the body in time, which will increase the chance of urinary tract infection and bring great pain to the patient

[0003] Existing urinary catheters are generally dredged by pressing with an empty needle, and some filter screen devices are installed outside the side holes to avoid clogging. The effective area of ​​urine diversion using these two methods is relatively narrow, and it cannot be completely drained in time, resulting in blockage. higher rate

Some catheters have a self-expanding opening like a lantern skeleton. By increasing the diameter of the catheter, the chance of catheter blockage can be reduced, and some blood clots and small stones can also be drained out. However, the self-expanding opening like a lantern skeleton The section is made of memory metal material, which has large material limitations and high cost, and in the case of anuria or oliguria, the lantern skeleton made of memory alloy material has the risk of incomplete expansion and expansion, and the practicability is poor

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