发明名称 |
Subcutaneous analyte sensor |
摘要 |
Assembly and method for measuring the concentration of an analyte in a biological matrix. The assembly includes an implantable optical-sensing element that comprises a body, and a membrane mounted on the body in a manner such that the membrane and the body define a cavity. The membrane is permeable to the analyte, but is impermeable to background species in the biological matrix. A refractive element is positioned in the cavity. A light source transmits light of a first intensity onto the refractive element, and a light detector receives light of a second intensity that is reflected from the cavity. A controller device optically coupled to the detector compares the first and second light intensities, and relates the intensities to analyte concentration.
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申请公布号 |
US7499738(B2) |
申请公布日期 |
2009.03.03 |
申请号 |
US20050115889 |
申请日期 |
2005.04.27 |
申请人 |
ROCHE DIAGNOSTICS OPERATIONS, INC. |
发明人 |
GERBER MARTIN;ESSENPREIS MATTHIAS;PETRICH WOLFGANG |
分类号 |
A61B5/05;G01N21/01;A61B5/00;A61B5/145;A61B5/1459;G01B9/02;G01N21/41 |
主分类号 |
A61B5/05 |
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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