| US 7,381,195 B2 | ||
| Hematocrit sensor | ||
| Yoshihiro Mori, Shizuoka (Japan); and Takayuki Ohishi, Shizuoka (Japan) | ||
| Assigned to Nikkiso Co., Ltd., Tokyo (Japan) | ||
| Filed on Jul. 18, 2003, as Appl. No. 10/623,178. | ||
| Claims priority of application No. 2002-209330 (JP), filed on Jul. 18, 2002; and application No. 2003-134906 (JP), filed on May 13, 2003. | ||
| Prior Publication US 2004/0067594 A1, Apr. 08, 2004 | ||
| Int. Cl. A61M 37/00 (2006.01); C02F 1/44 (2006.01); G01N 33/48 (2006.01) | ||
| U.S. Cl. 604—6.08 [604/4.01; 604/6.09; 210/745; 356/39] | 19 Claims |
| 1. A hematocrit sensor comprising:
a blood circuit having two ends;
a blood purifier connected to said blood circuit between said two ends and configured to purify blood that is being circulated
extracorporeally in said blood circuit; and
a sensor connected to said blood circuit and configured to measure hematocrit values, the sensor including
a housing connected to a portion of said blood circuit,
a slot provided with said housing,
a slit included in said slot of said housing, and
a light emission device and a single light reception device provided adjacent to each other in said slot such that both said
light emission device and said single light reception device are in optical connection with each other and positioned to face
said blood circuit through said slit.
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