申请人:PURITAN-BENNETT CORPORATION
公开号:EP0568274A1
公开(公告)日:1993-11-03
The method for making an optical fiber microsensor involves applying an uncured analyte sensing matrix to an optical fiber and crosslinking the sensing matrix in situ on the optical fiber to yield an ion permeable microsensor which can be used intravascularly to monitor pH, or partial pressures of oxygen or carbon dioxide in blood. The liquid form of the sensing matrix contains a crosslinking agent and a crosslinking inhibitor which can be removed by exposure to elevated temperatures to allow the sensing matrix to crosslink and cure as desired, in situ, on the surface of the optical fiber. A liquid crosslinking overcoat layer containing a crosslinking agent and a crosslinking inhibitor which can be removed by exposure to heat can also be applied over the cured sensing matrix.
制造光纤微型传感器的方法是将未固化的分析物传感基质涂抹在光纤上,然后在光纤上就地交联传感基质,从而产生一种可渗透离子的微型传感器,这种传感器可用于血管内监测血液中的 pH 值或氧分压或二氧化碳分压。液态传感基质中含有一种交联剂和一种交联抑制剂,将它们暴露在高温下可以去除这些交联剂和抑制剂,从而使传感基质在光纤表面按需要就地交联和固化。还可在固化的传感基质上涂覆一层液态交联覆盖层,该层含有交联剂和交联抑制剂,可通过加热去除。