However even if they produced a design now we have supply chain problems globally.
Edit: I seem to have stirred up capitalist defence here. To clarify: The government runs healthcare here in the UK. They have a responsibility for making sure there is supply of equipment available for us. This isn't some car pooling company that says "there's no cars available until next Wed", this is healthcare. And as for production, the government should have agreements in place with manufacturers to switch to infrastructure build out.
We've screwed up flood defences, energy, healthcare so far. Lets stop now.