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Shape Memory Device With Temperature-Dependent Deflectable Segment And Methods Of Positioning A Shape Memory Device Within A Bone Structure
Shape Memory Device With Temperature-Dependent Deflectable Segment And Methods Of Positioning A Shape Memory Device Within A Bone Structure
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机译:具有随温度变化的可弯曲段的形状记忆器件以及在骨结构内定位形状记忆器件的方法
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摘要
A system for augmenting a bone structure. A shape memory device includes a deflectable distal segment including temperature-dependent memory metal material. The shape memory device is slidably received within a guide cannula. The deflectable distal segment may include a substantially longitudinally straightened form, such as when subjected to a force from the guide cannula. The deflectable distal segment forms a first deflected shape having a first bend away from said straight longitudinal axis at a first elevated temperature greater than an initial temperature, and forms a second deflected shape having a second bend away from said straight longitudinal axis at a second elevated temperature greater than said first elevated temperature. The shape memory device may create voids within the bone structure with the deflectable distal segment at the first and/or second bends. Methods for positioning a shape memory device within a bone structure are also disclosed.
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