发明名称 Orthodontic coil spring and method of making the same
摘要 An orthodontic coil spring is made of a shape-memory alloy wire which is wound into a coil and heat treated into a superelastic state. The coil spring imparts a predetermined spring force within a superelastic zone of deflection.
申请公布号 US4849032(A) 申请公布日期 1989.07.18
申请号 US19880169384 申请日期 1988.03.17
申请人 TOMY, INC. 发明人 KAWAGUCHI, KOZO
分类号 A61C7/12;A61K6/04;C22F1/00;F16F1/02 主分类号 A61C7/12
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