Toyota Kenya develops Sh100,000 ventilator in war on Covid-19

In Summary

• Toyota Kenya managing director Arvinder Reel said that the firm had taken up the call by President Uhuru Kenyatta for local companies to come up with easy to deploy local solutions in the battle to contain the spread of the coronavirus.

Toyota Kenya has developed a ventilator as an emergency use resuscitator system to support patients with Covid-19 respiratory failure. See story https://bit.ly/2VW8OKo

Toyota Kenya has developed a ventilator as an emergency use resuscitator system to support patients with Covid-19 respiratory failure.

In a statement released on Friday, the ventilator is designed to enable rapid large-scale development and deployment.

It was made from locally sourced components.

Toyota Kenya managing director Arvinder Reel said that the firm had taken up the call by President Uhuru Kenyatta for local companies to come up with easy to deploy local solutions in the battle to contain the spread of the coronavirus.

“It is recognised that the surge in Covid-19 is requiring extraordinary measures that include the provision of mechanical ventilator support  to keep pace with clinical needs at our healthcare facilities," he said.

The company stated the bridge mechanical ventilator comprises four parts which include a motor vehicle motor 12V DC, which can be sourced from any car wiper motor,  locally fabricated sheet metal pattern which can be cut by CNC machines or fabricated by Jua Kali artisans, cam pattern which can also be cut from sheet metal plates to control the tidal volume and motor control circuit which can be locally made using available IC, transistor, capacitors and resistors.

"Once given the necessary approvals, Toyota Kenya will be able to develop up to 20 Bridge Mechanical Ventilator per day," the statement further read.

This is how the Bridge Mechanical Ventilator works;

The bridge mechanical ventilator makes use of an Ambu bag, which is essentially used for emergencies when a ventilator is not available, where a doctor or a medical practitioner squeezes the bag by hand to push air into the lungs of the patient.

E-Vent uses this Ambu bag (something that is readily available in hospitals) and squeezes it with the help of a paddle activated by cam discs attached to a mechanical motor.

The ventilatory support needs of a Covid-19 patient can range from simple BIPAP (bi-level positive airway pressure) for patients that are breathing spontaneously to mandatory ventilation in either a pressure-support or volume control mode.

Additionally, these patients are very likely to require inspired oxygen concentrations (FiO2) in excess of the 21 per cent contained in room air.

When in operation, the bridge mechanical ventilator indicates to the operator; the current settings that could include inspiratory pressure, tidal volume estimate, frequency; and the current delivery for instance inspiratory pressure or respiratory rate.

It is strongly recommended that the device should be used under supervision of a medical practitioner.