Vital Signs Monitor Incorporates SET Technology

A new vital signs monitor offers a host of noninvasive, continuous, measurements and patient monitoring capabilities, including Masimo rainbow SET Pulse CO-Oximetry (SpO2) technology.

The Connex Vital Signs Monitor (CVSM) is a full-color, touch screen device that acts as three devices in one, providing comprehensive patient documentation on a single display, including automatic measurements of heart rate, blood pressure (BP), temperature, and pulse oximetry; manual parameters such as respiration, height, weight, and pain level; and modifiers such as body position, Oxygen (O2) therapy details, and others. The device also gives the clinician the ability to control alarms, patient data, and monitoring, in a customized manner for each patient, and document the data right on the device, eliminating the need to locate a PC and transcribe it later.


The CVSM monitor also integrates Masimo (Irvine, CA, USA) rainbow SETSpO2-enabled measurements, and is capable of being field upgraded to add other rainbow SET measurements as they become commercially available for use with the CVSM. These will eventually include Masimo rainbow SET noninvasive and continuous measurements such as total hemoglobin (SpHb), oxygen content (SpOC), carboxyhemoglobin (SpCO), methemoglobin (SpMet), Pleth Variability Index (PVI), and rainbow Acoustic Monitoring (RAM). The CVSM is a product of Welch Allyn (Skaneateles Falls, NY, USA).

"Welch Allyn is excited to provide our customers with the option of enabling the Masimo parameters within our patient monitoring devices in a manner that considers their evolving needs over time,” said Steve Meyer, executive vice president and chief global business officer at Welch Allyn. "Masimo technology supports our platform concept of modularity and upgradeability while allowing customers to improve patient care through early, noninvasive continuous and spot check monitoring of key hemodynamic parameters.”

Conventional pulse oximetry assumes that arterial blood is the only blood pulsating in the measurement site. During patient motion, the venous blood also moves, which causes conventional pulse oximetry to under-read because it cannot distinguish between the arterial and venous blood. Masimo SET signal processing identifies the venous blood signal, isolates it, and uses adaptive filters to cancel the noise and extract the arterial signal in order to report the true arterial oxygen saturation and pulse rate.

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