Midmark Patient Monitor CO2 Sensor Bracket (Capnography / LoFlo Sidestream)

The Problem

Capnography, the continuous monitoring of end-tidal CO2 during anesthesia, is one of the most critical safety monitors in veterinary surgery. ETCO2 provides the earliest warning of hypoventilation, airway disconnection, esophageal intubation, and cardiac arrest, typically minutes before pulse oximetry detects a problem. Studies have shown that the combined use of capnography and pulse oximetry could prevent up to 93% of avoidable anesthetic mishaps.

The Philips Respironics LoFlo sidestream CO2 sensor is the standard capnography module used with Midmark multiparameter monitors. But the LoFlo was designed as a generic OEM component. It ships with no monitor-specific mounting hardware. The module simply hangs from its cable, sits loose on a shelf, or gets taped to the monitor housing.

This creates real problems. Philips and Health Canada issued a safety alert documenting that LoFlo sensor cables subjected to repeated twisting, coiling, or bending can lose functionality. An unsecured module swinging from its cable strains the 8-pin Lemo connector, risks vacuum leaks in the sampling line that produce false CO2 readings, and is vulnerable to drops that damage the internal infrared optics.

Your anesthesia team shouldn’t be improvising with tape and zip ties to secure a monitor that’s watching your patient breathe.

The Solution

The CO2 Sensor Mount bolts directly to four existing screw points on the rear panel of your Midmark multiparameter monitor, the same mounting points designed to bear the load of Midmark’s own mounting accessories. No drilling, no adhesive, no modifications.

The mount provides a secure cradle that holds your LoFlo sidestream sensor in place with clean cable routing to prevent connector strain. The sensor stays accessible for sampling line changes but protected from the bumps, swings, and drops that cause damage and false readings.

Designed for the Philips Respironics LoFlo sidestream CO2 sensor, the standard capnography module used across Midmark, Bionet, Edan, Infinium, and other veterinary monitoring platforms. The LoFlo and CAPNOSTAT share the same 8-pin connector and are interchangeable on the same host monitor.

What’s in the Box

• 1× CO2 Sensor Mount (PETG)
• 4× mounting screws (matched to Midmark rear panel screw points)

Installation

1. Locate the four screw points on the rear panel of your Midmark monitor
2. Align mount and secure with included screws
3. Seat CO2 sensor module into cradle
4. Route sampling line and cable through integrated channel

Care & Cleaning

Wipe with isopropyl alcohol. Not autoclave-safe. PETG is resistant to most clinical cleaning solutions.

Looking to organize more of your monitoring station? See the FAST Scan Pocket Extension for portable ultrasound workstation organization.

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Not an FDA-cleared medical device. Accessory only. Not affiliated with or endorsed by Midmark, Philips, or Respironics. “Midmark,” “LoFlo,” “CAPNOSTAT,” and “Respironics” are trademarks of their respective owners.