Automatic opening and closing and delay device for urinary catheter

Abstract

The invention belongs to the field of urinary auxiliary device for urethral cannula, and relates to an automatic opening and closing and delay device for a urinary catheter. The device comprises a valve body, wherein a urine inlet connector tube is disposed on the top of the valve body and a urine outlet connector tube is disposed on the bottom of the valve body, and the urine inlet connector tubecommunicates with the inner cavity of the valve body via a urine inlet hole of the valve body. A valve core and an elastic structure are disposed in the inner cavity of the valve body. The valve coreis disposed on the top of the elastic structure, and the bottom of the elastic structure is placed against the inner wall of the bottom of the valve body. The valve core is blocked at the orifice ofthe urine inlet hole. The device of the invention can sense the bladder pressure, realize automatic opening and closing of the urinary catheter, and keep the bladder full and empty timely, thereby promoting the recovery of the bladder function.

Description

technical field [0001] The invention belongs to the field of urination aids for urethral intubation, in particular to an automatic opening and closing and time delay device for urinary catheters. Background technique [0002] Urethral catheterization is an auxiliary diagnosis or treatment by inserting a catheter through the urethra into the bladder to export urine under the principle of aseptic operation, and it can also be used for those who have difficulty urinating. The main indications are: 1. Commonly used for urinary retention; 2. Retention of urine for bacterial culture; 3. Detection of urethral stricture and preoperative preparation of pelvic organs and other operations. [0003] When certain diseases or operations require urethral intubation and indwelling catheters, regular urination and open drainage are generally used clinically. However, the above methods violate the normal pattern of urination, especially the open drainage, which makes the intermittent urinati...

AI Technical Summary

Problems solved by technology

However, the above methods violate the normal pattern of urination, especially the open drainage, which makes the intermittent urination activity become a continuous process corresponding to the production of urine by the kidneys, the storage function of the bladder is abolished, the urination reflex is interrupted, and the bladder is in an empty state. Gradually adapted to the inert state of urine flow, even after extubation, the consciousness of active urination could not be established in time

For intermittent and regular urination, it is not appropriate to grasp the bladder filling speed, pressure and urination interval time according to the individual.

If there is little urine in the bladder, the urination is not enough to cause the urge to urinate, and the urine will flow out due to the pressure difference, making it difficult for the patient to feel the urination sensation, and the active urination consciousness cannot be established in time after extubation

[0004] The above problems leave the bladder empty and the bladder detrusor muscle disuse atrophy, leading to bladder contractures

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