has obtained pictures of the injury a Houston Astros fan allegedly suffered when the team's mascot "shattered" her finger with a t-shirt cannon last summer ... and they're gnarly.
A woman claims she was at a 'Stros game last July 8 when Orbit -- Houston's furry mascot -- fired t-shirts at her and her family at a rapid pace from his "bazooka style T-shirt cannon."
The woman -- who filed a lawsuit against the team for the incident this week -- says one of the t-shirts caught her square in the hand ... and mangled her left index finger.