Female-only catheter

Abstract

The invention discloses a female-only catheter. The catheter comprises main pipelines of an inner surface and an outer surface, and further comprises an external urethral orifice fixing component in which a top end of the head of the catheter can be at least arranged in a sleeved mode, a flexible urethral guiding component, a catheter driving component which is connected with a cylindrical main body of the external urethral orifice fixing component in a sleeving mode, a hydrophobic flow stopping component on a urine outlet of the catheter and spatialized structures, such as thin segments, pump pipes and tubular beds, which conduct expanding operations on narrow urethral areas. According to the female-only catheter, not only are drawbacks of a traditional mode of undirected dangling placement eliminated by a safe mode of directed approaching placement, and is pollution of urethral orifice surrounding tissues to the catheter avoided completely, but also urethral intimal injury caused by narrow urethra in a placement process is avoided furthest; the pollution of flowed urine to a catheter outlet is avoided; blockages of blood clots and tissue masses in a urinary bladder to a urine inlet during retention are removed effectively, and the female-only catheter is matched with a special peristaltic pump so that residual urine volume can be reduced to the lowest.

Description

technical field [0001] The invention relates to a urinary catheter, in particular to a female-specific urinary catheter, which belongs to the technical field of medical devices. Background technique [0002] Urinary catheter is the most common clinical medical device. After being inserted into the human body through the urethra, it can drain urine from the bladder to the outside of the body; it can be taken out after one urine drainage, or it can be left in place for multiple drainages for a long time. [0003] However, the operation and indwelling of the catheter will lead to different degrees of lower urinary tract injury, and the injury of the lower urinary tract is more likely to cause or aggravate lower urinary tract infection, which will further affect the function of the lower urinary tract or even the organs of the whole body. [0004] The female urethra is shorter and thicker than that of men, with a length of only about 4 cm. The structure around the external openi...

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Problems solved by technology

[0008] 3. Use fingers, tweezers, and hemostats to hold the catheter in the air and apply force. Because the catheter is flexible and travels in a tortuous way, the direction of the applied force is difficult to be the same as the centerline of the urethra. The direction of travel and the direction of force are at a certain angle. The force parallel to the centerline of the urethra is only a component of the applied force, so a larger force can put the catheter in, so the urethra is more damaged; it is more difficult to operate precisely when there is a bend at the outer opening of the urethra

[0010] 5. It is necessary to drain the urine out of the urine outlet of the catheter, and then flow it to a container such as a curved plate before judging that the catheter is placed in the bladder, and then connect the drainage bag connector. Urine usually contaminates the catheter. At the joint between the fluid outlet and the drainage bag connector, microorganisms in the air or on the surface of the surrounding objects reproduce in this part of the urine at the joint, and it is very easy to cause contamination in the catheter lumen when the drainage urine bag connector is pulled out again.

[0011] 6. During the period of indwelling the urinary catheter, insoluble blood clots and shed tissue clumps will block the urine entrance of the urinary catheter due to changes in the condition of the bladder. The existing solutions usually use a guide wire to enter the inner cavity of the urinary catheter to dredge it Or the syringe sucks urine, if the effect is not good, replace the thicker catheter, and the patient suffers from the pain of secondary intubation

[0012] 7. Some patients have a lot of residual urine in the bladder due to bladder detrusor weakness or decreased bladder compliance, which makes them more susceptible to infection. In this case, the nurse needs to use a syringe to suck the urine from the catheter urine outlet multiple times , accompanied by repeated insertion and removal of the drainage urine bag connector, which increases the risk of infection and is cumbersome to operate

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