In vitro dual-dynamic degradation performance monitoring device for medical magnesium alloy implantable device

Abstract

The invention provides an in vitro dual-dynamic degradation performance monitoring device for a medical magnesium alloy implantable device. The device realizes a controllable environment for simulating the movement of human tissues and organs in vitro of the medical magnesium alloy implantable device through the combined action of a motor, a speed reducer, a rotating disc, a crank connecting rod mechanism, a driving magnetic component, a driven magnetic component and a computer, and the in vitro constant temperature dynamic simulation environment of the medical magnesium alloy implantable device is completed through the combined action of a circulating pump, a flowmeter, a sample tank, a constant-temperature tank, a liquid storage tank, a pipeline and the computer; temperature and pH changes during the in vitro dual-dynamic corrosion degradation process are monitored by using a thermometer and pH meter; the dual-dynamic degradation rate is visually characterized by using a hydrogen evolution method; the degradation performance and the degradation rate are monitored and analyzed by using the combined action of an electrochemical workstation and the computer; and a stable and reliable monitoring device is provided for the in vitro dual-dynamic degradation performance analysis of the medical magnesium alloy implantable device, which greatly improves the possibility of medical industrialization of magnesium alloys.

Description

technical field

[0001] The invention relates to a monitoring device for analyzing the degradation performance of medical devices in a simulated real environment of a human body, specifically a device for monitoring the double dynamic degradation performance of medical magnesium alloy implanted devices in vitro. Background technique

[0002] With the increasing aging of the social population and the various injuries caused by various diseases and accidents caused by humans, people have greatly improved their requirements for medical quality, which has led to the development and application of medical implants. Researchers have increased their research on medical implant devices, and medical magnesium and magnesium alloy material devices have emerged as the times require. Magnesium and magnesium alloys have the advantages of good mechanical compatibility, biocompatibility, and degradability in human body fluids, making their application in the field of medical degradable devic...

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