One embodiment is a microprobe. An example of the microprobe comprises a housing having an aperture. This example of the microprobe also comprises an ISFET attached to the housing. The ISFET may have a gate located proximate the aperture. This example of the microprobe further comprises a reference electrode attached to the housing proximate the aperture. Another embodiment is a microsensor system. Another embodiment is a method for measuring a characteristic of tissue. Yet another condition embodiment is a method for monitoring tissue pH.
CROSS-REFERENCE TO RELATED APPLICATIONS
This application claims the benefit of U.S. Provisional Patent Application No. 60/465,298, filed 25 Apr. 2003, titled "Method and Apparatus for Medical Data Surveillance", which is incorporated herein by this reference. This application is a continuation-in-part of U.S. patent application Ser. No. 10/423,568, filed 25 Apr. 2003, titled "Method and System for Detecting Changes in Data", pending, and is a continuation-in-part of U.S. patent application Ser. No. 10/655,631, filed 29 Aug. 2003, titled "System and Method for Improved Patient Status Monitoring", pending, both of which are incorporated herein by this reference.
