It’s not a HiFi,

unless it says HiFi

Patents – IP – Products

Randall Alley is a well-known inventor of human performance products and attachment methods. At biodesigns, we don’t just innovate for users but innovate to push forward industries. In prosthetics, our goal is to replace Standard of Care (SOC) sockets with techniques founded on solid biomechanical principles, allowing wearers to achieve their full potential. In other sectors, it is breaking out of the norm to achieve ultimate performance. 

The Socket/Interface Revolution Started Here 

The HiFiTM Interface and HiFiTM Imager System took prosthetic sockets out of the dark ages. The HiFi, with  patented and patents-pending OsseostabilizedTM  and Osseosynchronized TM technology is proven to achieve superior results. For far too long, wearers have been fit with flawed sockets, or as they say “buckets.” Those wearing sockets know something is wrong with existing approaches, yet the industry is slow to move. With the HiFi, biodesigns is committed to answering the calls from all those searching for a better solution.

Leveraging our Prosthetic Technology to Revolutionize Wearables 

Our experience, passion and success developing biomechanically superior interface designs and methods in prosthetics has led us to regard all facets of the human connection with the same critical eye. Orthotics, orthopedics, exoskeletons and other wearables all approach their designs in the same flawed way. Our broad-based patent portfolio gives you a peek into our areas of interest as we continue to develop superior attachment platforms and devices.

Patent Portfolio

Currently we have several U.S. and international patents with numerous patent-pending applications:
High-Fidelity Interface (Compression Release Stabilized) and Imaging System
  • Method for Use of a Compression Stabilized Prosthetic Socket Interface – Patent #US8,323,353
  • Methods for Bone Stabilization – Patents #US10,123,888, Patent #US10,702,404, Patent #US11,382,774
  • Method, System, and Tool for Affixing Compression Stabilized Prosthetic Socket Interface – Patent #US8,656,918
  • Method of Manufacturing Prosthetic Socket Interface – Patent #US10,878,137, Patent #US11,151,291 (patents-pending)
High-Fidelity Bionic Rapidly Adjustable Socket (RAS) System
  • Adaptable Socket System, Method and Kit – Patents #US9,283,093, Patent #US10,369,027, Patent #EP2914221B1, Patent #ZL 201710158862.0, Patent #CA2,889,617, Patent #CA3,093,384 (patents-pending)
  • System and Method for Engaging Target with Artificial Limb Equipment – Patent #CN106913407B
  • Adjustable Pod System, Method and External Member – Patent #CN104884005
High-Fidelity Compression Liner System
  • Skeletal Stabilization Liner System – Patent #US10,806,606, #CA2,975,199 (patents-pending)
  • Load Distribution Systems and Load Carrying Equipment – Patent #US11,140,969, Patent #US11,596,219 (patents-pending)
Tap-N-GoTM Fastener
  • Stretch Fastener – Patent #US11,026,483, Patent #US11,678,727, Patent #EP3606371 (patents-pending)
HiFi PerformawearTM
  • Smart Wearable (patent-pending)
ClickValve, PushValve, MagValve
  • Expulsion Valve Assembly (co-inventor) – Patent #7,631,657, assignee ottobock Healthcare GmbH
  • Latched Valve Assembly (co-inventor) – Patent #7,448,407, assignee ottobock Healthcare GmbH
NOTICE: Hanger’s Comfort Flex, Sabolich’s Socket, Lim’s Infinite Socket, Martin Bionic’s Socketless Socket, the MAS Socket and REVO Limb DO NOT have a license to our compression technology. If you are a prosthetist and believe you have been misled about your ability to use our technology in these other designs, please contact us. 

Training/Licensing Program 

We empower prosthetists by teaching them an improved clinical technique and system, backed by evidence-based clinical support, that will improve patients’ outcomes AND your bottom line. Whether you are a single practitioner, a large facility, or a teaching hospital, we have a licensing program to fit your needs. Learn more.


Randall is the co-inventor of the Push, Mag, and Click Valves, the first threadless valves for definitive sockets, acquired by ottobock, and the co-inventor of the Sure-Lok Cable Lock Control System and the Biomechanically Aligned Harness Anchor, two products to improve body-powered prosthetics, distributed by Fillauer.

Beware of those providing HiFi impostors. They may cause harm.

It's not a HiFi, unless it says HiFi.

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Note: Hanger is not an Authorized Provider.

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