Hippos Exoskeleton, a human-performance technology startup, today announced a breakthrough in injury prevention with its Ultra-Light Smart Knee Sleeve. The soft, AI-driven garment deploys a micro-airbag in under 50 milliseconds to stabilize the knee, potentially reducing ACL and other orthopedic injuries. The device was recently tested at Cleveland Clinic's BioRobotics Center, where researchers used a simVITRO robotic knee simulator to evaluate its effectiveness under dangerous injury conditions. Results showed valgus rotation reduced by approximately 11%, anterior tibial translation by about 9%, and internal rotation by roughly 21%, with airbag deployment occurring within the critical ACL injury window.
The sleeve integrates three proprietary technologies: an on-device AI biomechanical engine that analyzes joint angles and torque hundreds of times per second, an ultra-fast micro-airbag actuator that deploys in 30-50 milliseconds, and intelligent textiles embedding sensors, circuitry, and airbags into a 200-gram garment. Dr. Paul Saluan commented, "Hippos has developed an intuitive protective knee sleeve that could reshape how we think about sports safety. If early results continue to track, it may mark the first real breakthrough in decreasing ACL injuries in a generation."
Knee injuries affect individuals of all ages and fitness levels. In the U.S. military alone, 800,000 service members suffer musculoskeletal injuries annually, costing over $3.7 billion. Retired III Armored Corps Surgeon Col Jason S. Wieman noted, "The Hippos ultralight AI knee sleeve airbag system represents a groundbreaking leap in protecting our Military. This is the future of military medicine." The company plans large-scale trials with elite athletic programs and military units.
Hippos was founded by Kylin Shaw, who tore his ACL at 17, ending his basketball aspirations. Inspired by car airbag deployment, he teamed with engineer Bhavy Metakar to develop the sleeve. Shaw stated, "This isn't the bulky uncomfortable knee brace of the past. It's closer to Lululemon meets crash-airbag - powered by AI." The company is also developing soft exoskeletons for hips, ankles, shoulders, and spine. More information is available at https://www.hippos.life.


