What is the RoVent Jr.?

An automatic small animal ventilator for mice, rats and guinea pigs from 3 g to 1,250 g. Enter the animal weight and press run. The RoVent Jr. calculates the respiratory rate and the tidal volume from that weight, and ventilates by either volume or pressure.

The RoVent Jr. needs an intubated or tracheotomised animal. It will not ventilate through a nose cone. An intubation kit is part of this setup, not an accessory to add later.

Kent's worked example for a 30 g mouse is 133 bpm, 0.200 mL tidal volume, 26 mL/min minute volume. In pressure priority the default target pressure is 15 cmH2O, and that figure does NOT scale with body weight.

RoVent Jr. or the full RoVent?

The Jr. gives you volume control, pressure control, automatic set-up from body weight, measured tidal volume, parameter alarms and a touchscreen you can configure to show numbers, waveforms, or both.

The full RoVent adds PEEP, sigh breath, assist mode, pulse ventilation mode, I:E ratio, user profiles and data output.

If your protocol calls for PEEP, or the work is open chest where alveolar collapse is a real problem, buy the RoVent and not the Jr. If it does not, the Jr. does the same core job for less money. Which one does your protocol specify?

Key Features

• Fully automatic, with settings calculated from animal weight
• Animals from 3 g to 1,250 g
• Volume control and pressure control in one ventilator
• Respiratory rate 20 bpm to 400 bpm, tidal volume 0.01 mL to 12.0 mL
• Touchscreen display with numeric readings, real time waveforms, or both
• Two dial control for use with gloved or damp hands
• Deadspace calibration and zero sensors routines on the unit
• Multi-animal capability