BLOOD COLLECTION NEEDLE ASSEMBLY HAVING A LIGHT SOURCE

摘要

A blood collection needle assembly 201 is provided, said assembly comprises a blood collection needle 202 with an adapter lock 206and an elastic blood stopper 207, and a tube holder 208, wherein the needle 202 incorporates at least one light guide 210 positioned within the lumen203and penetrating the wall thereof via at least one aperture 211, said light guide is configured to receive by its proximal end an optical radiation beam from an optical radiation source 220, to conduct optical radiation beam throughout internal space thereof and to emit optical radiation at a distal end thereof; wherein wavelength for optical radiation is selected to be strongly absorbed by blood red cells and walls of blood vessels; and wherein an adapter lock 206 may be manufactured from the material ranging from substantially transparent to non-transparent in regards to optical radiation produced by the optical radiation source 220.