Radius VSM

Front view of Radius VSM

Radius VSM™

Patient-worn, Continuous, Scalable Vital Signs Monitor

The Versatility of a Bedside Monitor in a Wearable Device

Radius VSM is a patient-worn vital signs monitor featuring a wide range of physiological measurements. Designed on a modular platform, Radius VSM combines the reliability and accuracy of a bedside monitor with the comfort and freedom of a wearable device that encourages ambulation and movement while ensuring a patient remains continuously monitored without interruption. 

Suitable for use across the continuum of care, Radius VSM offers advanced flexibility and is easily scalable to accommodate surges in patient volume and each patient's level of acuity.

Mannequin wearing Radius VSM Callouts

  1. Clinically proven Masimo SET® Measure-through Motion and Low Perfusion™ pulse oximetry, including oxygen saturation (SpO2), pulse rate (PR), perfusion index (Pi), PVi® fluid responsiveness, and RRp® plethysmographic respiration rate
  2. An aggregate respiration rate measurement derived from as many respiration rate methods as are currently connected to Radius VSM, including measurement from the pleth, from the sound of breathing, from impedance, and from chest wall movement
  3. Measure-on-inflation noninvasive blood pressure (NIBP) featuring single-patient-use cuffs, customisable scheduling (which reduces the need for periodic manual clinician measurement), and variable inflation speeds
  4. Continuous skin temperature measurements with notifications when clinician-specified temperature thresholds are breached
  5. Patient orientation, position, and activity monitoring, alerting clinicians to unsupervised patient movement and detecting patient falls, as well as preventable pressure injuries, with the additional ability to display respiration rate based on chest wall movement
  6. Electrocardiography (ECG) with heart rate, respiration rate, and advanced lethal arrhythmia detection using 3-leadwire single-patient-use electrodes offering 6 ECG waveforms: I, II, III, aVR, aVL, and aVF
  7. RRa® continuous acoustic respiration rate monitoring using rainbow Acoustic Monitoring®, which converts the acoustic patterns caused by the patient's airflow into breath cycles to calculate respiration rate and visualise an acoustic respiration waveform
Mannequin wearing Radius VSM

Monitor Based on Patient Need, Not Location

Monitor Based on Patient Need, Not Location


Radius VSM is built on a modular, wearable platform that allows providers to equip any bed with comprehensive monitoring. Components can be quickly added or removed depending on each patient’s monitoring needs. Without additional bedside equipment, network infrastructure, or tethered connections, Radius VSM is integrates a variety of technologies, modules, and noninvasive sensors.

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Monitoring on the Move

Radius VSM allows patients to ambulate comfortably while remaining continuously monitored.

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Rest Without Distraction

With continuous vital signs monitoring and automatic interval blood pressure measurements, Radius VSM encourages patients to rest comfortably without the disruption of periodic manual measurements.

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Information on the Go

Radius VSM provides waveform and parameter trend data on its built-in multi-touch LED display, allowing clinicians to stay informed about patient status while moving about with the patient.

Streamlining Workflows

Streamlining Workflows

When integrated into the Masimo Hospital Automation™ platform, Radius VSM helps simplify clinical workflows by automating patient data transfer to centralized supplemental monitoring systems and documentation in electronic medical records (EMRs). 

Connectivity and Data Integration

Connectivity and Data Integration


Radius VSM can operate as a self-contained device or connect wirelessly to Masimo bedside monitors and patient surveillance systems for flexible use in a variety of scenarios.

Flow of data from Radius VSM to Root to Patient SafetyNet to Replica


Masimo - Brochure, Radius VSM


Masimo - Product Information, Radius VSM

Product Information

Masimo - Thumbnail of Quick Reference Guide, Radius VSM

Quick Reference Guide

Radius VSM Introduction


Radius VSM Application


Radius VSM: Revolutionizing Patient Monitoring


*The use of the trademark PATIENT SAFETYNET is under license from University Health System Consortium.

For professional use. See instructions for use for full prescribing information, including indications, contraindications, warnings, and precautions.