Evaluation: Welch Allyn Connex Vital Signs Monitor for Continuous Vital Signs Monitoring

May 24, 2017 | Evaluations & Guidance

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  • The primary purpose of the device is to continuously measures, store, and display noninvasive blood pressure (NIBP), oxygen saturation (SpO2), RR, pulse rate (PR), end-tidal carbon dioxide (EtCO2), and temperature values for adult, pediatric, and neonatal patients in lower-acuity settings. The monitor also measures RRa on adult and pediatric patients. 1The Connex system analyzes and interprets vital signs data to offer trends and to alert clinicians to emergent events such as, but not limited to, high RR or low SpO
  • The monitor, as part of the Connex Clinical Surveillance System, also transmits data to a centralized display for secondary remote viewing and alarming. The system also offers an Integrated Pulmonary Index (IPI) intended to provide clinicians with the patient's respiratory status. 2. Supplementary uses of the device:
    • The CVSM monitor offers four monitoring profiles. However, for the purposes of this Evaluation, we focus on the device's continuous monitoring capabilities. The CVSM monitor can be configured to provide patient monitoring in:
      • Continuous Monitoring Profile: Used for continuous patient monitoring. Offers monitoring of EtCO2, fractional concentration of inspired CO2 (FiCO2), RR, PR, SpO2, temperature, and IPI.
      • Spot Check Profile: Used to capture a single set of vitals from a patient at any given time and offers manual NIBP, PR, SpO2, and temperature monitoring. Does not offer alarms.
      • Intervals Monitoring Profile: Used to capture a patient's vital signs for a specified time duration. Offers alarms and continuously monitors for SpO2, PR, timed NIBP interval, and temperature. The interval mode does not offer EtCO2 monitoring.
      • Triage Profile: Used for triaging patients specially in an emergency department. Offers vital signs capture (SpO2, PR, temperature, and manual NIBP) without alarms, and access to the Patients tab, which has patient demographic data.
    • The unit also allows manual entry of up to 20 standard or custom parameters such as level of consciousness, pain scale, height, weight, NIBP cuff size and site, patient position, temperature recording location, SpO2 measurement method, O2 flow rate and concentration, and O2 method. These parameters can aid in providing the clinician with a better picture of the patient's health.
    • Optional modules for EtCO2, RRa, contact-free monitoring of vitals, patient turn management features, and bed-exit alarms are also available with the monitor.
  • Major device components and software features: a) Connex Vital Signs Monitor—The monitor is usually mounted near the bedside or available on a rolling stand. It receives patient vital signs information from probes and modules attached to the device (e.g., NIBP, SpO2, temperature, EtCO2), and from manually entered parameter values (e.g., pain scale, patient weight). The device is available with an optional bar-code scanner to enter patient and clinician IDs. The monitor communicates and transfers information to a central monitoring display (Connex Central Station) over an IEEE 802.11 a/b/g or wired Ethernet connection.

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