Patent ID: 9030654
Filing Date: 2015-05-12
Classification: A61B,G01N

Abstract:
1. A concentration determination apparatus comprising: a storage body that holds liquid, a temperature control plate constituting the storage body and having one surface forming a closely contacted surface which is closely contacted to a living body tissue and another surface forming a liquid contact surface brought into contact with the liquid, a first input light guide that causes a first incident light to be incident on the storage body, a first light receiving light guide that receives a reference light transmitted through the liquid from the first input light guide, a second input light guide that causes a second incident light to be incident on the living body tissue, a second light receiving light guide that receives a measurement light from the second input light guide via the living body tissue, a temperature detector that detects a temperature of the liquid and a temperature of the living body tissue, a light receiving element that detects a light intensity of the reference light and a light intensity of the measurement light, and an operational unit comprises: a concentration calculation device that compares the absorbance of the liquid with the absorbance of the living body tissue and calculates a concentration of a measured component contained in the living body tissue.