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Home Biotechnologies Elbow Fixator

Elbow Fixator


The elbow fixator falls into the class of upper-extremity orthopedic apparatuses. It is intended for the treatment and rehabilitation of patients after elbow joint injuries and surgeries, in the case of dislocations, subluxations, ligamentous injuries, inflammatory, destructive and degenerative diseases of the elbow joint, and for contracture treatment. The fixator is secured directly on the body or on the clothes. The shoulder and the forearm are fixed with four belts in locating blocks, which are connected to one another with two pairs of hinged splints. During rehabilitation, the elbow joint angle is changed from time to time to prevent contractures and other side effects. The figure shows the fixator embodiment where the splints are fixed with a worm-and-worm pair. Embodiments where the splints are fixed with friction discs, a flat tooth clutch, a spring-loaded flat tooth clutch, and a ratchet-and-pawl have been developed too. The developmental work is conducted in cooperation with the Ukrainian State Research Institute for Medical and Social Problems of Disability (Dnepropetrovsk, Ukraine).

Innovative Aspect and Main Advantages

In comparison with similar orthopedic apparatuses, this fixator allows one to extend the range of motions in rehabilitation by changing the elbow flexion/extension angle smoothly (for hinges fixed with friction discs or a worm-andworm pair) or in small (60) steps (for hinges fixed with a tooth clutch, a spring-loaded tooth clutch, or a ratchet-andpawl), thus enhancing its therapeutic capabilities.

Areas of Application

Practical and research medicine.

Stage of Development

Four prototype embodiments with different hinges are being made to be tested at the Ukrainian State Research Institute for Medical and Social Problems of Disability.

Contact Details

Institute of Technical Mechanics of NASU and NSAU
Contact person: Head of Department, D.Sc., Professor Anatoly P. Alpatov,
Address: 15, Leshko-Popelya str., 49005, Dnepropetrovsk, Ukraine
Tel.: (+38 056) 372 0658
E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it

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