发明名称 |
Apparatus for pumping and directing fluids for hematology testing |
摘要 |
An apparatus is provided for hematology testing, which has a sensing unit defining a counting orifice for the flow of a blood sample through the counting orifice to analyze the blood sample, and a pump unit having three syringes. A first syringe is coupled in fluid communication with the sensing unit on the inlet side of the counting orifice for injecting a stream of blood sample through the counting orifice. A second syringe is coupled in fluid communication with the sensing chamber on the inlet side of the counting orifice for simultaneously injecting a sheath of fluid surrounding the sample stream on the inlet side of the counting orifice. And a third syringe is coupled to the sensing chamber on the outlet side of the counting orifice for aspirating a sheath of fluid from the sensing chamber surrounding the sample stream on the outlet side of the counting orifice.
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申请公布号 |
US7294307(B2) |
申请公布日期 |
2007.11.13 |
申请号 |
US20040975189 |
申请日期 |
2004.10.27 |
申请人 |
DREW SCIENTIFIC HOLDINGS, INC. |
发明人 |
CARVER, JR. EDWARD LAWRENCE |
分类号 |
G01N33/48;G01N1/00;G01N15/14 |
主分类号 |
G01N33/48 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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