Vital Sign Monitor – 2 Parameters NSL Accuit Sign 5 MDX (China)

In medicine, Vital Sign Monitor is the observation of a disease, condition or one or several medical parameters over time.

It can be performed by continuously measuring certain parameters by using amedical monitor(for example, by continuously measuringvital signsby a bedside monitor), and/or by repeatedly performingmedical tests(such asblood glucose monitoringwith aglucose meterin people withdiabetes mellitus).

Transmitting data from a monitor to a distant monitoring station is known astelemetryorbiotelemetry.

Monitoring ofvital parameterscan include several of the ones mentioned above, and most commonly include at leastblood pressureandheart rate, and preferably alsopulse oximetryandrespiratory rate. Multimodal monitors that simultaneously measure and display the relevant vital parameters are commonly integrated into the bedside monitors incritical care units, and theanesthetic machinesinoperating rooms. These allow for continuous monitoring of a patient, with medical staff being continuously informed of the changes in general condition of a patient. Some monitors can even warn of pending fatalcardiacconditions before visible signs are noticeable to clinical staff, such asatrial fibrillationorpremature ventricular contraction(PVC).

Physiological data are displayed continuously on aCRT,LEDorLCDscreen asdata channelsalong the time axis, They may be accompanied bynumerical readoutsof computed parameters on the original data, such as maximum, minimum and average values, pulse and respiratory frequencies, and so on.

Besides the tracings of physiological parameters along time (X axis), digital medical displays have automatednumeric readoutsof the peak and/or average parameters displayed on the screen.

Modern medical display devices commonly usedigital signal processing(DSP), which has the advantages ofminiaturization,portability多参数显示,可以跟踪许多different vital signs at once.

Oldanalogpatient displays, in contrast, were based onoscilloscopes, and had one channel only, usually reserved for electrocardiographic monitoring (ECG). Therefore, medical monitors tended to be highly specialized. One monitor would track a patient’sblood pressure, while another would measurepulse oximetry, another the ECG. Later analog models had a second or third channel displayed in the same screen, usually to monitorrespirationmovements andblood pressure. These machines were widely used and saved many lives, but they had several restrictions, including sensitivity toelectrical interference, base level fluctuations and absence of numeric readouts and alarms.