Rostec Presents Domestically Produced Hydraulic Leg Prosthesis

Mass production of the new generation domestic hydraulic knee module "Sputnik" will begin in the spring of 2026. Developed by the Moscow enterprise MPO "Metallist", it is designed to replace imported counterparts and provide prosthesis users with ample opportunities for an active life, including fitness, swimming, and cycling.

The module operates on a hydraulic system without electronic components, ensuring smooth movements, controlled resistance during flexion, and stability when walking on stairs and uneven terrain.

A distinctive feature of the module is its moisture resistance, allowing the prosthesis to be used in any weather and even in water. The design also includes a removable protective pad in the patella area, which can be changed depending on the level of stress, minimizing the risk of damage from impacts. Users can personalize the appearance of the prosthesis by choosing the color of the cosmetic shell.

The developers emphasize that "Sputnik" is as close as possible in functionality to expensive microprocessor-based counterparts, but is significantly cheaper, more reliable, and does not require recharging. The module has successfully passed tests by testers in everyday conditions and on special tracks.

Mass production is scheduled to begin in March 2026, and the first batch of 500 modules will be produced by the end of the year, according to MPO "Metallist".

Read more on this topic:

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