A drunk motorist who was 16 times over the drug-drive limit was downing vodka and throwing items out of his van window while leading police on a chase, a court heard.
Cocaine-fuelled Shaun Sergeant, 39, had been on an 18-hour binge before leading officers on a high-speed pursuit in a Citroen Berlingo.
He was only stopped once a stinger was deployed on the road.
But rather then pull over, he smashed into the side of a police car, causing an officer to be thrown three metres into the air.
PC Benson, a new bobby three weeks into the job, was left with two fractures to his arm while a second colleague suffered whiplash, Preston Crown Court heard.
Sergeant tried to get away from the scene but was caught by officers in the area, prosecutors said.
An officer in a marked vehicle initially saw Sergeant driving his Citroen Berlingo with a headlight out on Tuesday, February 18, at around 12.35am in Chorley, Lancashire.
He decided to follow the van and Sergeant sped up "for no apparent reason" and started to take a number of left turns, the court was told.
Sergeant mounted the pavement, drove on the wrong side of the road and over a roundabout after the officer flashed blue lights at him to indicate he should pull over.
David Clarke, prosecuting, told the court that Sergeant threw items including an electric heater out of the window of his van to stop the police car chasing him.
The chase was brought to an end when Sergeant hit a stinger which had been laid out in the road to stop him.
But rather than stopping his van, he steered it into a stationary police car.
The court heard that one officer was inside the van at the time while a second was standing just outside the door.
The force of the smash caused the officer to be flung metres into the air.
Sergeant tested twice over the drink-drive limit and 16 times over the drug-drive limit and admitted he had been on an 18-hour vodka and cocaine binge.
The two injured officers have both suffered as a result of the crash, with PC Benson left unable to work or look after his child.
Daniel Prowse, defending Sergeant, said he had been out of trouble for 10 years.
But he spiralled out of control and "hit the bottle" after finding out that his mum had terminal cancer.
He added that as a result, his long-term partner had left him which left him unable to see his kids and rendered him homeless.
He added that Sergeant, of Bolton, Lancashire, had shown remorse for the "catastrophic decision" that he had made.
Jailing him for two years and eight months, Judge David Potter said: "You appear for sentence for the offence of causing serious injury by dangerous driving.
"In the early hours of the 18th of February, you were driving your van when in your own admission you had been drinking vodka throughout the day and admitted while driving the vehicle.
"On top of that you had consumed a very considerable amount of cocaine.
"That indicates to this court the level of intoxication you were under when you took the decision consciously and deliberately to go and pick up a friend and drive them home.
"Notwithstanding that you now had a puncture, you still had some control over the vehicle.
"No sooner had that vehicle gone of the stinger that you saw the police van on the right-hand side of the road.
"For reasons I accept that you cannot fully explain, that had everything to do with the alcohol and drugs you had consumed, you steered that vehicle into collision with that van."