A Florida woman has brought a federal lawsuit against California blender company NutriBullet LLC, along with four marketing and manufacturing affiliates, after a February 2015 smoothie incident left her with a mangled hand and subsequent infection.

The lawsuit, filed Thursday in the Southern District of Florida, claims that the blades inside Margarett Winslett’s NutriBullet Rx blender began spinning of their own accord while she loaded an assortment of fruit inside the canister.