Wireless Capnography

Allows for CO2 measurement along with WVSM vitals

Capnography is now part of the standard of care for all patients receiving general anesthesia and routine monitoring in the pre-hospital setting. Capnography is a quantitative index for evaluating adequacy of ventilation and pulmonary blood flow during CPR.

Capnography is the noninvasive measurement of CO2 in exhaled breath expressed as the CO2 concentration over time. The miniCap™ measures the CO2 and respiratory rate and is able to display a waveform. Changes in the waveform are diagnostic on patient physiology, disease severity and response to treatment. Waveform capnography, via miniCap, is also the fastest and most reliable indicator that an endotracheal tube is correctly placed during intubation.

Capnography in the Field

Simplicity is a major feature of miniCap™. PaCO2 correlates well with EtCO2 in most patients, and is an excellent adjunct to other monitors such as the WVSM®. Respiratory assessment of patients is of critical importance, as changes in vital signs and patient symptoms pose an increased risk to the patient’s stability.

Adding capnography to the WVSM via miniCap significantly enhances functionality. With miniCap you get a complete monitoring package with EtCO2 and RR as well as the conventional monitoring of HR, NIBP, ECG, and SpO2.

Predicting Survival

Prediction of survival, as measured by return of spontaneous circulation (ROSC) during resuscitation, is difficult. Assessment of EtCO2 during CPR allows differentiation in patients with/without ROSC. A dramatic increase in exhaled carbon dioxide is an indication of ROSC. EtCO2 is also a noninvasive indicator of cardiac output. Most recent Advanced Cardiac Life Support (ACLS) guidelines now recommend using capnography to ascertain the effectiveness of cardiopulmonary resuscitation (CPR).


Wireless capnography is a safe, noninvasive sensing platform when miniCap is connected to the Wireless Vital Signs Monitor (WVSM®). The miniCap connects via the auxiliary port on top of the WVSM. Two CO2 measurement options in one exist with the miniCap – mainstream and sidestream.

The WVSM may be ordered in 2 different Wireless Connections: Ad-Hoc (iOS only) / Wi-Fi Direct (Android only) with both versions having access to AP (Access Point) and BLE (Bluetooth) connections.

More data, earlier data, and trending will save lives and improve outcomes. (Street, 2009)


  • WVSM Auxiliary Battery provides connectivity to WVSM and power to the capnography devices.
  • Mainstream Capnography provides continuous measurement of inspired and expired CO2 concentrations and respiratory rate.
  • Side-stream Capnography has virtually no warm-up time and full accuracy performance in seconds.
  • miniCap allows user to select basic vital signs or waveform capnography or toggle between GUIs automatically.