Formula

Formula

The Formula posterior mount (PM) foot is the ideal balance of flexibility and power, creating a dynamic foot design intended for a wide range of users/patients. The long, lightweight carbon pylon provides critical energy return to the user through the posterior attachment, while the compact shape of the ankle allows for better cosmetic finishing without hindering foot performance while worn with a shoe. Everyday users to elite athletes will admire the active feel of the Formula, and practitioners will appreciate the diverse range of fitting options for their patients.

Features & Benefits

  • Posterior mount design provides ideal balance of flexibility and power
  • Long carbon composite pylon delivers lightweight, dynamic response
  • Full split toe feature offers maximum multiaxial function
  • Rocker toe supports easy and smooth roll-over
  • Fully customizable—choose the pylon and separate heel spring best suited for your patient

Specifications

  • Weight rating: 330 lbs. (150 kg)
  • Foot size: 22 – 31 cm
  • Functional levels: K3 – K4
  • Weight (27 cm foot): 24 oz. (675 g)
  • Pylon height: 12 – 20 in. (30 – 21 cm)
  • Build height: 3 in. (7.6 cm)

Downloads

Product Manual

Formula Dimensions

Ordering Information

Formula as Shipped
  • Order pylon based on patient weight
  • Order heel spring based on desired stiffness
  • Transfemoral or patients 6'2" (188 cm) or taller should move up one weight class for pylon and heel spring standard
Patient Weight Pylon Only Heel Spring Softer Heel Spring Standard Heel Spring Stiffer
100 – 129 lbs. 45 – 58 kg 178-110-2A 178-110-3 178-110-4
130 – 159 lbs. 59 – 72 kg 178-110-A 178-110-3 178-110-4 178-110-5
160 – 189 lbs. 73 – 85 kg 178-110-B 178-110-4 178-110-5 178-110-6
190 – 219 lbs. 86 – 99 kg 178-110-C 178-110-5 178-110-6 178-110-7
220 – 249 lbs. 100 – 113 kg 178-110-D 178-110-6 178-110-7 178-110-8
250 – 289 lbs. 114 – 131 kg 178-110-E 178-110-7 178-110-8 178-110-9
290 – 330 lbs. 132 – 150 kg 178-110-F 178-110-8 178-110-9

Aeris Activity

180-10-2010 Posterior Mounting Bracket

Warranty

  • 2 years from date of patient fitting

The Formula has been designed and manufactured for specific patient weights. Failure to follow the weight guidelines and/or overload conditions caused by the patient, such as heavy lifting, high impact sports, or abusive activities, that would otherwise damage the natural limb, may void the warranty.

For more information and ordering, email Customer Service or call 1-800-251-6398.