DEVICE FOR IDENTIFYING BIOLOGICAL TISSUE OF EPIDURAL SPACE OF SPINAL CANAL Russian patent published in 2005 - IPC

FIELD: medical engineering.

SUBSTANCE: device has optically connected optical radiation source, light division unit, light guide and photodetector. Photodetector output is connected to video monitor, light guide end for transmitting optical radiation is removably set in medical needle pavilion. Polished light guide end is combined with needle end and manufactured at an angle of α determined from relation of arc sin (1/n₂)< α < arc sin (n₁/n₂), where n₂ is the light guide material refraction coefficient value and n₁ is the epidural space tissue refraction coefficient value.

EFFECT: high accuracy of examination.

2 dwg