The 26-year-old had a cortisone injection in his right shoulder after picking up an injury in last month's ICC Champions Trophy final.
Broad missed England's warm-up match against Essex this week, but the Nottinghamshire man has said that he will be ready for action when the Ashes series gets underway.
"I'm very confident. I didn't even really notice it was sore for four days, so that probably shows it wasn't overly serious," Broad is quoted as saying in The Telegraph.
"It only really hurt when I got to the top of my bowling action. That was where the swelling was, so an anti-inflammatory injection gets rid of the swelling, and that's as simple as it gets, really.
"So, I couldn't be more confident that I'll be 100% right. If the Test started today, I'd be ready to go."
The first Ashes Test begins at Trent Bridge on Wednesday.