Simulation device for hemodialysis training

By designing a simulation device for hemodialysis training, integrating a closed-loop circulation system and multiple pressure sensors, the device simulates the changes in liquid viscosity during the coagulation process. This solves the problem that existing training methods cannot realistically simulate coagulation, achieving high-fidelity operation and objective evaluation, and improving the safety and effectiveness of training.

CN121214751APending Publication Date: 2025-12-26GUANGZHOU FIRST PEOPLES HOSPITAL (GUANGZHOU DIGESTIVE DISEASE CENT GUANGZHOU FIRST PEOPLES HOSPITAL GUANGZHOU MEDICAL UNIV THE SECOND AFFILIATED HOSPITAL OF SOUTH CHINA UNIV OF TECH)
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Patent Information

Application Number
CN202511683673.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-17
Publication Date
2025-12-26

AI Technical Summary

Technical Problem

Current hemodialysis training methods cannot realistically and progressively simulate the dynamic physical process of blood clotting under the premise of absolute safety, making it difficult for trainees to develop effective muscle memory and emergency response capabilities.

Method used

A simulation device for hemodialysis training was designed, comprising a closed-loop circulation system including a blood simulation storage tank, a peristaltic pump, an arteriovenous chamber, a simulated dialyzer, and a reflux assembly. It integrates multiple pressure sensors, simulates the liquid viscosity changes during the coagulation process through a quantitative injection assembly and a static mixer, and utilizes an industrial control all-in-one computer and a remote control to enable instructors to remotely control and trigger complications.

Benefits of technology

It enables safe and accurate simulation of the coagulation process under risk-free conditions, providing a high-fidelity operational environment. Trainees can repeatedly practice high-risk emergency response, improving the safety and effectiveness of the training and enabling them to perform high-fidelity operation and objective evaluation throughout the entire process.

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Abstract

The invention provides a simulation device for hemodialysis training, and relates to the technical field of training instruments. The simulation device for hemodialysis training comprises a rack, the top of the rack is fixedly connected with a fixing frame, one side of the outer surface of the fixing frame is fixedly connected with a blood simulation storage barrel, one side of the blood simulation storage barrel is provided with an artery pot, and the artery pot is fixedly connected with the fixing frame; a pumping assembly is installed between the blood simulation storage barrel and the artery pot. By arranging the blood coagulation simulation system composed of the quantitative injection assembly, the static mixer and the vibration type viscosity sensor, the physical characteristic that the liquid viscosity is gradually increased in the blood coagulation process can be safely and accurately simulated, and therefore the real pathophysiological changes that the venous pressure is slowly increased and the arterial pressure is reduced are reproduced in training. The design solves the problem that an existing training mode cannot provide a core pain point of dynamic and vivid complication simulation under the risk-free condition.
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