A special equipment for laser selective melting for direct manufacturing of metal orthopedic implants

Abstract

A laser selective melting special equipment for directly manufacturing metal orthopedic implants, characterized in that it includes a forming system, a powder recovery system, a powder spreading system, a laser transmission system, a dust filtration and water / oxygen purification double circulation system, and a sealing cavity; the forming system, powder recovery system, and powder spreading system are all placed in the sealed cavity, the laser transmission system is placed on the upper part of the sealed cavity, and the dust filtration and water / oxygen purification double circulation system is placed outside the sealed cavity ; The forming system includes a forming cylinder, a forming cylinder piston, a ball screw, a servo motor and a grating scale; the inside of the forming cylinder piston is provided with a heating copper plate, a water cooling system and a temperature sensor; The way of powder spreading; the forming process is carried out under the protection of argon, and it is equipped with a double circulation system of dust filtration and water / oxygen purification. The invention has high cleanliness of the atmosphere in the forming chamber, high dimensional accuracy of the forming parts, can form bionic structures such as porous structures and biological channels, and is suitable for rapid and personalized customization of artificial hip joints.

Description

technical field [0001] The invention relates to a manufacturing technology of medical supplies, in particular to a device for manufacturing medical implants, in particular to a special laser selective melting device for directly manufacturing metal orthopedic implants. Background technique [0002] At present, orthopedic implants, especially hip replacement, have become one of the fields with the largest investment and most prominent development in orthopedic surgery. According to statistics, there are 1.1 million hip implants in the world every year, and the trend is increasing year by year. Therefore, the research on metal orthopedic implant technology has important scientific value and social economic value. [0003] The implanted prosthesis currently used in my country is mainly a series of standard parts imported from abroad. The imported products are designed for Caucasians. Measurement data show that there is a significant difference in the neck-shaft angle between ...

AI Technical Summary

Problems solved by technology

[0018] The purpose of the present invention is to design a laser selective melting special equipment for directly manufacturing metal orthopedic implants in view of the problems that existing medical implants cannot adapt to individualized manufacturing, resulting in long manufacturing cycle and poor adaptability

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