Creep-control infusion device and method thereof based on shape memory alloy spring driver

Abstract

The invention discloses a creep-control infusion device and method thereof based on a shape memory alloy spring driver. A clamp groove is formed in a fixing plate. A disposal infusion tube is disposed in the clamp groove of the fixing plate. A plurality of shape memory alloy spring driver fixing holes are formed in a retaining plate and a support plate. The shape memory alloy spring driver comprises a reset spring, a guide rod and a shape memory alloy spring. A retaining block is disposed in the middle of the guide rod. The reset spring and the shape memory alloy spring are respectively disposed on the guide rod parts on two sides of the retaining block. The fixing plate and the retaining plate are disposed on a base. The end, with the reset spring, of the guide rod penetrates a retaining plate fixing hole to be in contact with the disposal infusion tube. The end, with the shape memory alloy spring, of the guide rod penetrates a fixing hole of the support plate which fixed on the base through bolts. The shape memory alloy spring suitable clinical infusion and the like is smart in structure, noiseless, light and the like.

Description

technical field [0001] The invention relates to a drug infusion device, in particular to a peristaltic control type infusion device driven by a shape memory alloy spring and a method thereof. Background technique [0002] As a traditional clinical infusion method, artificial intravenous infusion is widely used in hospitals. However, this method has problems such as poor control accuracy, easy operation errors, and untimely monitoring of the infusion process, which may easily lead to medical accidents. Therefore, intelligent infusion technology has gradually become a hot spot in the research and development of medical equipment. In recent years, relevant researchers have vigorously developed intelligent infusion devices, and have achieved a series of research results, and some products have been vigorously promoted and applied in clinical medicine. However, there are still many technical problems in the existing intelligent infusion equipment on the market, and often cause ...

AI Technical Summary

Problems solved by technology

However, there are still many technical problems in the existing intelligent infusion equipment on the market, and often cause medical accidents

There are many reasons for medical accidents caused by intelligent infusion equipment. One of the most important reasons is the design defect of the internal mechanical parts of the infusion equipment, such as the low control accuracy of the drive motor that controls the flow rate of the liquid medicine, and the risk of drug contamination by the lubricating fluid inside the mechanical parts. And the internal mechanical structure of the equipment is complex, the friction between the mechanisms produces noise, etc.

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