Method and device for measuring biological information
In order to precisely determine a stable measuring region appropriate for a measurement of biological information, and to measure a concentration of a specific component, i.e. biological information, without inconsistency, a biological information measuring device is provided with, a measuring region determining means for determining a measuring region in between an eponychium and a distal interphalangeal joint; an information detector for applying a light to measuring region; a light source for entering a light to information detector; a light detector for detecting a light which exits from the information detector; and a processor for measuring specific component based on information obtained from light detector.
1. A biological information measuring device for measuring a concentration of a specific component included in a living body, comprising:
a measuring region determining means for determining a measuring region in between an eponychium and a distal interphalangeal joint, said measuring region determining means determines the measuring region at the proximal nail fold,
an information detector for applying a light to said measuring region and detecting a light which exits from said measuring region, said information detector includes a portion for contacting the measuring region,
a light source for entering a light to said information detector contacting said measuring region, said light is applied to the measuring region through said portion for contacting the measuring region,
a light detector for detecting a light which exits from said information detector contacting said measuring region, said light enters the information detector through said portion for contacting the measuring region, and
a processor for measuring said specific component based on information obtained from said light detector.
2. The biological information measuring device in accordance with claim 1 , comprising an abutting means for abutting said information detector to said measuring region.
3. The biological information measuring device in accordance with claim 1 , wherein said measuring region determining means determines said measuring region based on a difference between signal information of light applied to a nail and signal information of light applied to a skin.
4. The biological information measuring device in accordance with claim 1 , wherein said measuring region determining means has a visual identification means capable of identifying a certain position.
5. The biological information measuring device in accordance with claim 1 , wherein said measuring region determining means determines said measuring region by detecting an elevation change which exists due to skin structure.
6. A biological information measuring method for measuring a concentration of a specific component included in a living body, comprising the steps of:
(1) determining a measuring region in between an eponychium and a distal interphalangeal joint; said measuring region is at the proximal nail fold;
(2) detecting a light which exits from said measuring region, after an entrance into said measuring region, with an information detector; said information detector includes a portion for contacting the measuring region; said light is applied to the measuring region through a portion for contacting the measuring region; and said light enters the information detector through said portion for contacting the measuring region; and
(3) specifying a concentration of a specific component of said measuring region based on the light detected in said step (2).
7. The biological information measuring method in accordance with claim 6 , wherein said measuring region is determined based on a difference between signal information of light applied to a nail and signal information of light applied to a skin in said step (1).
8. The biological information measuring method in accordance with claim 6 , wherein said measuring region is determined visually in said step (1).
9. The biological information measuring method in accordance with claim 6 , wherein said measuring region is determined by detecting an elevation change which exists due to skin structure in said step (1).