Patent ID: 8057404
Filing Date: 2011-11-15
Classification: A61B

Abstract:
1. A blood sensor comprising: a base; a needle for blood collection which is disposed at a front end of the base, the blood collection needle having a tubular shape with a through-hole defining apertures at both ends thereof; a detection part for detecting a component of blood collected by the blood collection needle, and a blood supply path for supplying the blood collected by the blood collection needle to the detection part, the detection part and the blood supply path being provided in the base; a negative pressure supply path being connected to the blood supply path; and a negative pressure generation part comprising a hole formed in the base for applying negative pressure to the hollow part of the blood collection needle through the negative pressure supply path, the negative pressure generation part being provided approximately at the center of the base, the blood collection needle being provided in such a manner that it penetrates into the blood supply path; the detection part being disposed between the blood collection needle and the negative pressure generation part; and wherein the blood supply path shares a portion with the negative pressure supply path that forms the negative pressure generation part, and the detection part is provided at an end of the blood supply path that shares a portion with the negative pressure supply path.