Oh the poor love! (And poor vet too, they do get bitten and scratched fairly frequently).
Jakey used to be a terror to get into the carrier, what I do these days though thanks to advice from
ouirdeaux, is put the carrier on the bed with the opening of the carrier just slightly over the edge of the bed so there's no platform for Jakey to put his feet on and resist.
Duvet over the carrier so he can't see it until it's nearly too late.
Long sleeve sweatshirt on in case he realises what is going on and starts to struggle.
But it's become so much easier to get him in the carrier this way.