COMPOSITE LAYER INTERVERTEBRAL RETRIEVING DEVICE
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United States of America Patent
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N/A
Issued Date -
Jun 27, 2013
app pub date -
May 11, 2012
filing date -
Dec 22, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A composite layer intervertebral retrieving device implantable between two vertebrae is provided, including a main carrier having a middle layer, and a securing groove on respective surfaces; multiple securing pieces stably coupled to the securing grooves; wherein the middle layer is a macromolecular material having an elastic modulus of between 2 to 22 GPa, close to the original elastic modulus of the spine of between 12 to 18 GPa. The securing pieces are affinitive to and easily fused with osteocytes, and capable of medically imaging. The securing pieces are coupled to the securing grooves, and when the device is implanted between vertebrae, the securing pieces come into direct contact with the osteocytes of the neighboring vertebrae, with securing bulges thereof pressing against the osteocyes, and the middle layer has an elastic modulus similar to that of the vertebrae to prevent the stress shielding effect.
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