ACFO aka "Foot Brace" patent T. Porcelli #4934355 

Photo copyright T. Porcelli 1989

ACFO 

Ankle-Calcaneal-Forefoot Orthosis 

(aka: Porcelli Orthosis)

The Porcelli Orthosis (ACFO) was first introduced in 1986 following intensive clinical studies of rehabilitation patients with neuromuscular deficits secondary to cerebral vascular accidents. The brace is designed to be used concurrent with physical therapy to implement sensory motor control in cases where there is trace or better activity of the lower extremity anterior compartment. 

patent T. Porcelli #4934355