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Some medical devices are used to monitor or maintain
experimental animals in physiological conditions, while
others are used for signal generation and data acquisition.
One must pay attention if these instruments are operated
manually. Moreover, further data analysis of the experimental
data is difficult. To
overcome the problem, a computer can be used to control the
instruments and analyze data. In this thesis, two kinds of
medical devices were computer controlled. One includes a
CO2 monitor, a temperature meter and an infusion pump
in which the RS-232 protocol we used for data
communication, which the other kind of instruments such as
a waveform generator and an oscilloscope, the GPIP protocol
is used.
To increase the number of channels of the RS-232 in an IBM
compatible PC, a multiplexing interface card was designed. We
used this system to carry out preliminary experiments of
selective activation of C-fiber. From the
experimental results, we conclude that this system is
useful. An autonomic anesthetic control system in the
future will be built based on this system.
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