The Infrasonde D-4000 is a patient monitor. Although its blood pressure measurement technology has been evaluated, it is not possible to base a determination on its accuracy from this research. Blood pressure measurements are taken from the upper arm. It is intended for bedside patient monitoring. This device is now obsolete.

The technology used in the Infrasonde D-4000, to measure blood pressure, has been assessed, in a general population, according to a non-standard protocol.

	Accuracy Assessment	Recommendation	Basis
BP	Medaval	None	When an evaluation is carried out using a non-standard protocol, no inference can be made on accuracy based on a standard protocol.