Devices for releasing a drug at a continuous and controlled rate for

Official title: {Devices for releasing a drug at a continuous and controlled rate for a prolonged period of time (artificial gland structures or devices A61F2/022; intra-uterine contraceptive devices A61F6/14; tampons for introducing into the vagina A61F13/20, A61L15/00; suppositories or bougies for intra-vaginal or intra-uterine application A61K9/02; physical forms of medicinal preparations for sustained or differential drug release A61K9/20, A61K9/50)}

A61M31/002 (Devices for releasing a drug at a continuous and controlled rate for) appears on 1,513 US grants and 1,955 published applications in this corpus.