MUMBAI, India, Jan. 9 -- Intellectual Property India has published a patent application (202531129758 A) filed by Brainware University, Kolkata, West Bengal, on Dec. 21, 2025, for 'synchrocycle: a hand-to-foot coupled rehabilitation and fitness ergometer using synchronized rotational linkage system.'
Inventor(s) include Ms. Aishwarya Rai; Mr. Kundan Das Ukil; and Mr. Shaswat Kumar Chandan.
The application for the patent was published on Jan. 9, under issue no. 02/2026.
According to the abstract released by the Intellectual Property India: "The present invention relates to a hand-to-foot coupled rehabilitation ergometer designed to provide synchronized upper and lower limb movement through a mechanically linked rotational transmission system. The device incorporates a hand-crank assembly, a foot-pedal assembly, an adjustable seating unit, and a central flywheel with controllable resistance, enabling passive, active, or assisted exercise modes suitable for diverse therapeutic requirements. By allowing rotational torque generated by the upper limbs to drive the lower limb pedals, the invention facilitates neuromuscular coordination, motor relearning, and lower-limb mobilization in patients with partial or complete leg weakness. The non-electrical, mechanically efficient design ensures portability, affordability, and usability across physiotherapy centres, sports rehabilitation units, geriatric wellness programs, and home-based therapy environments."
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