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1. 发明申请

WO2023275846A1 PROSTHETIC DEVICE 审中-公开
公开(公告)号：WO2023275846A1
公开(公告)日：2023-01-05
申请号：PCT/IB2022/056153
申请日：2022-07-01
申请人： FONDAZIONE ISTITUTO ITALIANO DI TECNOLOGIA , I.N.A.I.L. ISTITUTO NAZIONALE PER L'ASSICURAZIONE CONTRO GLI INFORTUNI SUL LAVORO
发明人： CHERUBINI, Andrea , CANEPA, Michele , BOCCARDO, Nicolò , TRAVERSO, Simone , LAFFRANCHI, Matteo , DE MICHIELI, Lorenzo , GRUPPIONI, Emanuele , DE GIUSEPPE, Samuele , DRIESSEN, Josephus Johannes Maria , ROSSI, Paolo
IPC分类号： A61F2/50 , A61F2/68 , A61F2/70 , A61F2/64 , A61F2002/5003 , A61F2002/6845 , A61F2002/701
摘要： Prosthetic device, suitable to replace at least in part the limb of a user, comprising a proximal prosthetic portion (1) suitable to be coupled to a segment of the user's limb and a distal prosthetic portion (2). The proximal prosthetic portion (1) and the distal prosthetic portion (2) are inter-connected by an articular portion (3) comprising an articular actuator assembly (5) for rotatably actuating said distal portion (2) with respect to said proximal portion (1) about an axis of rotation (30). A damper assembly (4) connected to said articular portion (3) is provided and adapted to absorb energy when a torque is applied between said proximal portion (1) and said distal portion. The articular actuator assembly (5) is provided with a removable mechanical engagement element (6) such that the actuator assembly (5) can be switched from a coupled condition in which it rotatably drives said distal portion (2) with respect to said proximal portion (1) to a decoupled condition in which said distal portion (2) is only coupled to said damper assembly (4) for a predetermined rotation angle. The articular actuator assembly (5) includes an electric motor (50) and a reduction gearbox (51), which reduction gearbox (51) is connected in input with the motor (50) and in output with said engagement element (6). The engagement element (6) comprises an actuating part connected to the output of the reduction gearbox (51) and an actuating part integral with the distal portion (2). The actuating part and the actuated part are respectively provided with abutment and reciprocal fitting surfaces arranged on radial planes with respect to said rotation axis (30), which abutment surfaces are respectively provided on at least one protrusion of the actuating part (60) and on at least one protrusion of the actuated part (61 ). Said protrusions (60, 61) have angular extensions such that in the said decoupled condition the protrusion of the actuating part (60) is positioned angularly, spaced from the protrusion of the actuated part (61) so as to constitute an end stop for the extension of the distal portion (2) and thus allow the free flexion of the distal portion (2) for a predetermined angular amplitude, while in the said coupled condition the protrusions of the actuating part (60) and of the actuated part (61 ) are in abutment with each other so as to actuate the relative rotation of the distal portion (2) with respect to the proximal portion (1) in extension.

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