发明名称 |
INTRAVASCULAR CATHETER PROBE FOR CLINICAL OXYGEN, pH AND CO2 MEASUREMENT |
摘要 |
Methods and apparatus for the measurement of oxygen, pH and CO2 in human and animal tissue is provided in which the compounds preferably comprise a chromophore and/or fluorphor capable of absorbing an amount of energy and subsequently releasing the energy as phosphorescent and/or fluorescent light, and wherein the phosphorescence is quenched by molecular oxygen according to the Stern-Volmer relationship. CO2 is measured by a fluorphor which alters fluorescence with pH. The apparatus includes an optical fiber (2) for transmitting light to a probe (70) that includes a gas permeable film (10) enclosing a portion (12) of the distal end of the optical fiber to form a reservoir (14) of a solution of the oxygen quenchable phosphorescent compound and/or the fluorescence emitting compound. The apparatus also includes a light source (36) and a light detector (34).
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申请公布号 |
WO9826709(A1) |
申请公布日期 |
1998.06.25 |
申请号 |
WO1997US23605 |
申请日期 |
1997.12.12 |
申请人 |
THE TRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA |
发明人 |
WILSON, DAVID, F. |
分类号 |
G01N21/76;A61B5/00;A61B5/145;A61B5/1459;(IPC1-7):A61B5/00 |
主分类号 |
G01N21/76 |
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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