Anti-reflux active indwelling catheterization drainage device based on breathing kinetic energy driving

The anti-backflow active indwelling urinary catheter drainage device, driven by respiratory kinetic energy, actively drains urine using the patient's respiratory kinetic energy, solving the problem of urine retention in the catheter, reducing the risk of infection, and extending the device's lifespan.

CN122440912APending Publication Date: 2026-07-24THE FIRST AFFILIATED HOSPITAL OF ARMY MEDICAL UNIV
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Patent Information

Application Number
CN202610689232.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-05-19
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

When a patient is lying flat or on their side, the existing indwelling urinary catheterization device forms a horizontal section or a "U-shaped bend" in the catheter path, which prevents the gravitational potential energy from effectively driving the flow of urine, causing urine retention and increasing the risk of urinary tract infection.

Method used

The device employs an active indwelling urinary catheterization device driven by respiratory kinetic energy. It utilizes the patient's natural respiratory kinetic energy to achieve active drainage of urine through the suction and discharge components and the balloon system. Combined with a negative pressure safety valve and fatigue-resistant suction and discharge components, the device's safety and reliability are ensured.

Benefits of technology

It effectively removes residual urine from the horizontal segment of the catheter, reduces the risk of urinary tract infection, avoids bladder damage, extends the lifespan of the device, and reduces noise and dependence on external energy.

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Abstract

The invention belongs to the technical field of medical instruments, and provides an anti-reflux active indwelling catheterization drainage device based on breathing kinetic energy driving, which comprises a suction and discharge pipe provided with an upper one-way valve and a lower one-way valve, a power pipe communicated with the suction and discharge pipe, and a suction and discharge assembly connected with the abdomen of a patient through an air guide pipe and an air bag. According to the device, the cavity in the power tube is periodically compressed / expanded by utilizing the undulating motion of the abdomen when a patient naturally breathes, and the urine is actively extracted and pushed, so that the problem of retention of the urine in the catheter in a horizontal position is effectively solved.
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