It depends on whether the doctor had any role in the device’s defect. The mere fact that a medical implant is defective might not have anything to do with the job the doctor did in implanting it. Even if the doctor performed a flawless surgery, the device still might not work. A doctor could, however, have liability for implanting a defective device if the doctor’s actions made the device defective, or if the device was obviously defective but the doctor implanted it anyway. Talk to an experienced Philadelphia medical malpractice attorney to learn more about who may have a legal liability to you for your medical injury.