TALOCRURAL UNIT Russian patent published in 1994 - IPC

FIELD: prosthesis manufacture and prosthetics. SUBSTANCE: talocrural unit has housing 1 of flexible airtight material, ankle, absorbers in toe, front, central and rear parts. Central absorber is flexible having poured bush 4 with thread and pins for fixation with crus. Cavities for compressed air there are in toe, front, central and rear parts of housing. Three last cavities are coupled with each other through openings to be overlapped at loads. Thread bush for nipples having housing 7, plug 8, tubular diaphragm 9 intended for pumping the air into them closing air outlet are poured in shells of toe cavity and front part. Flexible shells of cavities and central flexible absorber together with compressed air in cavities form absorbers with rigidity to be regulated owing to pressure of air pumped into cavity. EFFECT: improved reliability. 2 dwg