Police shot and killed the animal after the attack
The family of a US woman attacked by a chimpanzee has filed a $50m lawsuit against the animal's owner.
Lawyers for Charla Nash, who is still in a critical condition after the attack, accused owner Sandra Herold of negligence and recklessness.
The lawsuit also claims that Ms Herold gave the animal medication that exacerbated its violent behaviour.
Ms Nash, 55, lost her hands, nose, lips and eyelids in the attack, which may have left her blind and brain damaged.
"Going forward, there's going to be astronomical expenses associated with the procedures she's going to require," said her lawyer, William Monaco.
"No amount of money can compensate my sister for the injuries she has suffered," said Ms Nash's brother Michael, in an affidavit.
"Nevertheless, it is my belief that probable cause exists that judgment will enter in favour of the plaintiff in the amount of at least $50m."
A judge at the Superior Court in Stamford, Connecticut, where the suit was filed, has granted a temporary order that stops Ms Herold selling or mortgaging her assets.
The 12-minute attack took place after Ms Herold invited Ms Nash, a friend, to her house to help her entice the chimpanzee, known as Travis, back into the house.
Police shot and killed the animal when they arrived on the scene.