23-05-2013 дата публикации
Номер: US20130131814A1
Принадлежит:
The present invention provides an implant, which is used to fix an artificial joint in bone, including a biodegradable magnesium alloy. 1. An implant , which is used to fix an artificial joint in bone , comprising a biodegradable magnesium alloy.2. The implant according to claim 1 , wherein the implant is formed in the shape of any one selected from a screw claim 1 , a bolt claim 1 , a pin claim 1 , a nail and a washer.3. The implant according to claim 1 , wherein the artificial joint is used as an artificial hip joint claim 1 , an artificial knee joint claim 1 , an artificial shoulder joint claim 1 , an artificial elbow joint claim 1 , an artificial wrist joint claim 1 , an artificial ankle joint claim 1 , an artificial finger joint or an artificial toe joint.4. The implant according to claim 1 , wherein the implant comprises a porous structure.5. The implant according to claim 4 , wherein the biodegradable magnesium alloy is located in a pore of the porous structure.6. The implant according to claim 1 , wherein the biodegradable magnesium alloy is represented by the following Formula 1:{'br': None, 'Mg-A \u2003\u2003(1)'}wherein A is at least one selected from the group consisting of manganese (Mn), cobalt (Co), nickel (Ni), chromium (Cr), copper (Cu), cadmium (Cd), zirconium (Zr), silver (Ag), gold (Au), palladium (Pd), platinum (Pt), rhenium (Re), iron (Fe), zinc (Zn), molybdenum (Mo), niobium (Nb), tantalum (Ta), titanium (Ti), strontium (Sr), silicon (Si), phosphorus (P) and selenium (Se).7. The implant according to claim 1 , wherein the biodegradable magnesium alloy is represented by the following Formula 2:{'br': None, 'sub': a', 'b', 'c, 'MgCaX\u2003\u2003(2)'}wherein a, b and c are each independently a molar ratio of each component, a+b+c=1, 0.5≦a<1, 0≦b≦0.4, 0≦c≦0.4, and when at least one of b and c is more than 0 and c is 0, calcium (Ca) is included in an amount of 5˜33 wt % based on a total amount of the biodegradable magnesium alloy; andX is at least ...
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