Urine drainage device, drainage control device, drainage control system and urination method

Abstract

The invention discloses a urine drainage device, a drainage control device, a drainage control system and a urination method. The urine drainage device comprises a urine inlet, a urine outlet and a bladder bionics unit, wherein the bladder bionic unit comprises a main part forming a liquid storage cavity, a first pressure transmission surface and a second pressure transmission surface, wherein the liquid storage cavity is communicated with the urine inlet and the urine outlet via a connecting pipeline, and the first pressure transmission surface and the second pressure transmission surface deform along with the change of the pressure of urine in the liquid storage cavity; a connecting lower pipeline is provided with a first action region and a second action region which are affected by external forces; when the first action region and the second action region are synchronously affected by the external forces, the liquid storage cavity and the urine outlet are blocked; and the liquid storage cavity is communicated with the urine outlet when any one external force on the action regions is eliminated. The change of the pressure of the urine in the liquid storage cavity of the urine drainage device can be represented through the deformation of the pressure transmission surfaces, and further whether the urine is drained or not is determined according to the deformation capacity of the pressure transmission surfaces, so that the function assisting a patient to drain the urine is achieved, and the structure is simple and scale production is applicable.

Description

Technical field [0001] The present invention relates to the technical field of medical equipment, in particular to a urine drainage device, a drainage control device, a drainage control system and a urination method. Background technique [0002] Clinically, there are many patients with paraplegia and hemiplegia caused by cerebrovascular and spinal vascular diseases, as well as patients with cystostomy, comatose patients, and high paraplegia patients. Most of them are accompanied by urination disorders, and indwelling catheterization is the solution to the above Common means for patients with urination disorders. [0003] The catheterization device used for traditional indwelling catheterization consists of a catheter inserted into the urethra and a urine bag connected to the lower end of the catheter. The urinary catheter continuously drains the urine in the bladder, resulting in the failure of normal bladder pressure to form in the bladder. The patient’s detrusor and bladder sph...

AI Technical Summary

Problems solved by technology

The urinary catheter continues to export the urine in the bladder, resulting in the failure to form a normal intravesical pressure in the bladder. The patient's detrusor muscle and internal bladder sphincter are in a disused state for a long time, and they cannot use the functions of low-pressure urine storage and low-pressure urination. The principle of urinary continence protects the entire urinary tract system. Long-term use of a catheter with this structure will cause the following risks:

[0004] 1. The continuous drainage of the urinary catheter makes the patient's bladder lack of fullness for a long time, which may easily lead to adhesion of the bladder wall;

[0005] 2. The continuous drainage of the urinary catheter reduces the pressure gradient between the bladder and the outside world. In order to ensure smooth drainage, it is often necessary to increase the outer diameter and hardness of the tube wall, which will cause pressure on the urethral mucosa of the patient and cause ischemic damage;

[0006] 3. The continuous drainage of the urinary catheter causes adaptive changes in the nerve receptors of the bladder, which cannot sense the filling of urine in the bladder and complete the urination reflex, resulting in urinary retention

This brings great pain to patients, increases the medical burden of patients, and increases the risk of infection

Moreover, the existing urodynamic examination cannot monitor urodynamic parameters in real time, nor can it reflect the physiological state of the natural bladder filling, nor can it realize personalized bionic urine drainage, which is extremely inconvenient for long-term bedridden patients with indwelling catheterization , there is no report of a device capable of performing real-time urodynamic examination on patients with indwelling catheterization

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