发明名称 |
METHOD AND SYSTEM FOR OPTICALLY EVALUATING PROXIMITY TO THE INFERIOR ALVEOLAR NERVE IN SITU |
摘要 |
A low coherence interferometry probe system for evaluating proximity to a tissue layer, comprising a low coherence light source for generating low coherence excitation light, an excitation optical fiber to bring the low coherence excitation light near the tissue layer and a collection optical fiber for capturing back-scattered light from the tissue layer. The probe system comprises a low coherence interferometry sub-system and a digital signal processor for evaluating a distance to the tissue layer based on the back- scattered light received by the collection optical fiber. There is also provided a spectral absorption probe system for evaluating proximity to an artery, comprising a light source for generating excitation light having a wavelength adapted for absorption by blood chromophores, an excitation optical fiber to bring the excitation light near the artery and a collection optical fiber for capturing back-scattered light from the artery. The probe system comprises a light detector and a signal processor for determining a distance to the artery based on the back-scattered light and on Beer-Lambert law of light absorption using a value for surrounding tissue attenuation coefficient (µe??). A spectral absorption and low coherence interferometry probe system combining low coherence interferometry and spectral absorption is also provided. |
申请公布号 |
CA2833432(C) |
申请公布日期 |
2014.07.22 |
申请号 |
CA20122833432 |
申请日期 |
2012.01.04 |
申请人 |
DR. HASSAN GHADERI MOGHADDAM |
发明人 |
MOGHADDAM, HASSAN GHADERI;GALLANT, PASCAL;MERMUT, OZZY;VEILLEUX, ISRAEL |
分类号 |
A61B6/14;A61C8/00 |
主分类号 |
A61B6/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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