Near Infrared Spectroscopy Devices

First the relative transparency of tissue to light in the nir range and second the oxygenation dependent light absorbing characteristics of hemoglobin.

Near infrared spectroscopy devices. Near infrared spectroscopy nirs is an emerging noninvasive monitoring modality based on chromophore absorption of infrared light. Osram opto semiconductors is expanding the product portfolio for near infrared spectroscopy. Since 2009 fnir devices llc has been the premier supplier of continuous wave functional near infrared fnir spectroscopy imaging systems for research and other non clinical applications. What is near infrared spectroscopy.

This technology uses the characteristic absorption behavior of certain molecular compounds. As one of the portable optical technologies to explore human physiology and assist in healthcare near infrared diffuse optical spectroscopy nirs for tissue oxygenation measurement has been developed for four decades. There are four different types of nirs system continuous time domain frequency domain and functional and numerous devices that are now commercially available. Schneider a 1 hofstätter e 1 brandner j 1 moder a 2 häusler s 1 wald m 1.

Benchmarking of four near infrared spectroscopy devices for long time use in neonates. Near infrared spectroscopy nirs is a spectroscopic method that uses the near infrared region of the electromagnetic spectrum from 780 nm to 2500 nm. There are four different types of nirs system continuous time domain frequency domain and functional and numerous devices that are now commercially available. The devices compared are niro 200nx which measures s t o 2 and oxyhemoglobin by spatially resolved spectroscopy and the beer lambert law respectively and invos 5100c and foresight elite which both measure s t o 2 with the beer lambert law enhanced with the spatial resolution technique.

The oxymon and brite are based relies mainly on two characteristics of human tissue. Near infrared spectroscopy the technique on which artinis devices e g. Near infrared spectroscopy enables such things as the water fat sugar and protein content of food to be measured. This review looks at the.

With emergence of near infrared spectroscopy nirs as a fast and non destructive analytical method researchers have used nirs for non destructive evaluation of tablets. Tissue hemodynamics including the blood flow oxygenation and oxygen metabolism are closely associated with many diseases.