Biomedical piezoelectric material polarization device and method

Abstract

The invention discloses a biomedical piezoelectric material polarization device and method. The device comprises two cathode binding posts, a cathode plate, a thermal insulation safety head, a lifting handle, an anode binding post, an oil bath basin, a nested copper disc and a silver sheet electrode. The cathode plate is placed in the oil bath basin, the two cathode binding posts are respectively vertically fixed at the two ends of the cathode plate, and the lifting handle is installed on the thermal insulation safety head which is respectively connected with the two cathode binding posts and covers the oil bath basin. According to the method, in polarization, the nested copper disc is fixed on the cathode plate, then biomedical piezoelectric materials are placed in the middle of the nested copper disc, the silver sheet electrode is placed on the biomedical piezoelectric materials, the anode binding post is put down to press the silver sheet electrode, and the polarization is achieved through control over the oil bath temperature of the oil bath basin at last. The biomedical piezoelectric material polarization device prevents pollution hard to clear from permeating a sputtering electrode coating, a silver paste coating and high-temperature silicone oil, and meets requirements for application of biological materials.

Description

technical field [0001] The invention relates to a piezoelectric material polarization device and method, in particular to a biomedical piezoelectric material polarization device and method, belonging to the field of medical devices. Background technique [0002] Biomedical piezoelectric materials are widely used as biological piezoelectric sensors and biomedical piezoelectric implant materials, both of which belong to the field of biomedical materials. Due to the particularity of the application field of biomedical materials, it is required that the materials must meet the requirements of biomedical applications. standard. Piezoelectric materials are widely used in the field of electronics industry. Sputtering coating or silver paste coating is often used as electrode material for the polarization method, and corona polarization and high temperature oil bath polarization can be used for polarization respectively. Because the corona polarization is difficult to control stabl...

AI Technical Summary

Problems solved by technology

Because the corona polarization is difficult to control stably and the operation safety is low, the current domestic technology is difficult to achieve. Therefore, the high temperature oil bath polarization method is usually used in China for polarization.

However, this polarization method not only pollutes the biomedical implantation of the piezoelectric material by the electrode coating, but also makes it difficult to clean the high-temperature silicone oil infiltrated into the piezoelectric material, which will cause biological toxicity and is not conducive to biomedical applications.

[0003] With the advancement of science and technology and the improvement of people's living standards, people's requirements for medical and health fields are more urgent. Bio-piezoelectric sensors and bio-medical piezoelectric implant materials have become research hotspots, which indirectly led to the development of bio-medical piezoelectric materials. The demand is increasing, but the polarization method of biomedical piezoelectric materials has not been well resolved, and there is no polarization device for biomedical piezoelectric materials

[0004] At present, the polarization method of piezoelectric materials in China still stays in the traditional electronics industry. The polarization method has the following criticisms for the biomedical application of piezoelectric materials. One is sputtering coating or silver It is difficult to remove the electrode coated with paste coating. The silver paste contains lead components, which leads to pollution in the process of biomedical experiments. The second is that high-temperature silicone oil penetrates into the gaps of the material, which is difficult to clean, and its residues directly cause biological detection experiments. Enhanced toxic side effects

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