Medical degradable and absorbable Mg-Sr-Ca series magnesium alloy implant and preparation method thereof

A mg-sr-ca and implant technology are applied in the field of medical degradable and absorbable Mg-Sr-Ca magnesium alloy implants and their preparation to achieve optimal mechanical properties and corrosion resistance, inhibit bone resorption, promote The effect of tissue healing
CN102552973AInactive Publication Date: 2012-07-11浙江海圣医疗器械股份有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
浙江海圣医疗器械股份有限公司
Publication Date
2012-07-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a medical degradable and absorbable Mg-Sr-Ca series magnesium alloy implant and a preparation method thereof. The medical implant is made of a Mg-Sr-Ca series alloy, wherein strontium is 0 to 5 percent (but not 0) of the weight of the Mg-Sr-Ca series alloy; calcium is 0 to 2 percent (but not 0) of the weight of the Mg-Sr-Ca series alloy; a small amount of one or more of trace elements, namely manganese, zirconium, tin, rare earth and yttrium may be contained, and are not more than 2 percent of weight of the Mg-Sr-Ca series alloy; and the balance is magnesium. In-vivo and in-vitro tests prove that the Mg-Sr-Ca series alloy implant is nontoxic, has high histocompatibility, and is a reliable biomedical implant material.
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Description

technical field

[0001] The invention relates to a degradable and absorbable Mg-Sr-Ca alloy medical implant and a preparation method thereof. The design of the degradable absorbable Mg-Sr-Ca alloy is non-toxic and has good tissue compatibility, adjustable mechanical properties and degradation speed, and is suitable as a degradable orthopedic implant device. Background technique

[0002] At present, biodegradable materials for medical use are mainly degradable polymer materials and degradable ceramic materials. Degradable polymer materials include polyglycolic acid (PGA), polylactic acid (PLA), polylactone (PCL) and their copolymers. , natural polysaccharide materials (cellulose, chitin) and natural protein materials (collagen, fibrin), etc.; widely used degradable ceramics include hydroxyapatite, α-tricalcium phosphate, β-tricalcium phosphate and phosphoric acid Oxytetracalcium. Although degradable polymer materials can be completely absorbed by the human body, they have lo...

Claims

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