Method of manufacturing a porous magnesium, or magnesium alloy, biomedical implant or medical appliance.

摘要

Method of manufacturing a porous metal or metal alloy structure having a predefined porosity for use as a biomedical implant or medical appliance. The method includes: mixing predefined amounts of a magnesium or magnesium alloy powder and a binder powder into a flowable powder mixture; providing a mould and injecting the flowable powder mixture into the mould to obtain a preform moulded into a desired shape. At least the binder is then allowed to solidify. Further the binder is removed from the preform to obtain a substantially binder-free preform. The substantially binder-free preform is then sintered during a time and at a temperature to achieve the predefined porosity. The method according to the invention can be further improved in that the magnesium or magnesium alloy structure is further provided with at least one substance that adds a predetermined functionality thereto.