Polisher for artificial knee joint femoral condyle

Abstract

The invention discloses a polisher for an artificial knee joint femoral condyle. The polisher comprises a fixed die, a pressure pump, a magnetic field generator, magnetorheological polishing fluid andstorage. The pressure pump, the fixed die and the storage are connected through pipelines to form a cycle. The magnetorheological polishing fluid is located in the storage and the pipelines. The magnetic field generator is arranged on the fixed die. A holding cavity for fixing a polished part is arranged in the fixed die. An upper channel and a lower channel are further formed in the fixed die and both communicate with the holding cavity. The upper channel communicates with the pressure pump through a pipeline. The lower channel communicates with the storage through a pipeline. The polisher has the advantages that the magnetorheological polishing fluid with pressure is injected, due to the influence of a magnetic field generated by the magnetic field generator on the fixed die, the magnetorheological polishing fluid is converted into a solid-like form, the polished part is polished with pressure, thus fine polishing is achieved, surface roughness of the polished part is improved to ahigh level, and the requirement of human body implantation is met.

Description

Technical field

[0001] The invention relates to a polishing machine for artificial knee joint femoral condyles. Background technique

[0002] Due to the poor cutting performance of titanium alloys, the surface is easily oxidized. At present, precision forging, vacuum precision casting, cold (hot) upsetting, etc. are usually used at home and abroad for forming processing, and chemical polishing, mechanical polishing, electrolytic polishing and other methods are used for surface finishing. Processing. At present, titanium alloy materials have developed high-tech products that can be used for the repair and replacement of human soft and hard tissues, such as vascular stents and dental implants, which have had a large response at home and abroad. However, because titanium alloy artificial knee joint femoral condyle implants have many burrs after processing, and the oxide film is thicker, as a medical interventional device implanted in the human body, the surface roughness of the mat...

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