One firearms officer is believed to have suffered a broken wrist while the suspect in Edmonton was being detained, police said.
Police added that a stun gun was discharged during the operation.
More top news
A man accused of stabbing his father to death during a row over food has been arrested by police.
The UK's biggest ambulance service is to become the first in the country to be placed in special measures.
Footage of an armed burglar crawling on the floor of a couple's bedroom while they slept just feet away has been released by police.