Digger-maker JCB has stood down production lines which had been poised to produce thousands of special housings for a new type of ventilator.
The housings were being made for the CoVent device produced by Dyson and TTP as part of the national Ventilator Challenge in the fight against coronavirus.
On Friday the Cabinet Office confirmed that, following re-assessment from a panel of expert clinicians, it was ending support of the CoVent and four other devices because they would require further development before they would be ready for clinical testing - and they were not currently required to meet immediate demand.
JCB joined a national call to action to tackle the ventilator shortage in March and re-started production at a plant in Staffordshire - closed because of the pandemic - to produce housing prototypes.
JCB Chairman Lord Bamford had promised to help in any way the company could after a Government appeal to help plug the shortage and he immediately mobilised a research and engineering team to examine ways to assist.
Now the company has confirmed it had stood down its production lines at JCB Cab Systems in Uttoxeter, which had been ready to make up to 10,000 housings.
Lord Bamford said: "We have stood ready to help in any way we could in the production of housings for a new type of ventilator and our production lines were in a position to start manufacturing immediately.
"I'm very proud of all the hard work the team has put into this project and as a British company we would do it all again to help at a time of national need."
The first prototypes underwent several design iterations.
The original prototype in JCB yellow was made out of steel before the team worked on a new design, manufactured in aluminium and painted in NHS white and grey.
The project went from design to production in just a matter of days after JCB deployed an engineering, design and fabrication team to answer the call for help.
