How it works

With the increasing power of today’s computers electronic data acquisition, storage and analysis of data from patient monitors seems to be most promising, especially in cardiac anaesthesia. The problematic part is the conversion of analog biological signals (i.e. ECG, blood pressure curves) into digital data. Most commonly, investigators employ an analog-to-digital converter to digitize these data (i.e.). However, this conversion is prone to multiple sources of inaccuracies such as loss of information due to low sample rates and bias by noise signal. Additionally, the capabilities of these converters are limited by the number of input channels provided.


Current patient monitors are equipped with a network interface in order to allow remote management and data storage. If the interface follows industrial standards like TCP/IP over Ethernet, a logical and physical link is easily established. Even wireless communication is possible.

ViPaD is a multi-threaded software for communication and data processing. It can obtain all numeric data from the monitor system. The data can then be stored and used for analysis, graphic presentation and even export to external software like spread-sheet or statistical software. Besides a computer with a network interface, no additional hardware, setup or maintenance is needed.