ARTICULATED DEVICE FOR THE WRIST

摘要

Articulated device (1) for the wrist comprising: a proximal connector (2) for housing a proximal attachment system for pins;—a distal connector (3) for housing a distal attachment system for pins; an articulator joint (4) to provide a controlled movement between the proximal connector (2) and the distal connector (3), characterized in that said articulator joint (3) comprises an arched element (5) that is rotatably mounted on a support element (6) in order to enable rotation around an axis of rotation (X) corresponding to the axis of rotation by flexion and extension of the wrist, said arched element (5) being directly connected to the distal connector (3), blocking means (51) to block the rotation of the arched element (5) and rotation-limiting means (53) to limit the rotation of the arched element (5) for a pre-established portion of a circumferential arc are both directly mounted on said support element (6), and in that said support element (6) is mounted by means of a simple cardan joint (40) on the proximal connector (2), said simple cardan joint (40) presenting a first axis of rotation (Z) that is perpendicular to the axis of rotation (X) of the arched element and a second axis of rotation (Y) that is perpendicular to the first axis of rotation (Z) and movable with respect to the axis of rotation (X) of the arched element along a circumferential arc whose center is located on the first axis of rotation (Z).

主权项

1. Articulated device (1) for the wrist, comprising:
a proximal connector (2) for housing a proximal attachment system for pins; a distal connector (3) for housing a distal attachment system for pins; an articulator joint (4) to provide a controlled movement between the proximal connector (2) and the distal connector (3),characterized in that said articulator joint (3) comprises an arched element (5) that is rotatably mounted on a support element (6) in order to enable rotation around an axis of rotation (X) that corresponds to the axis of rotation by flexion and extension of the wrist, said arched element (5) being directly connected to the distal connector (3), blocking means (51) to block the rotation of the arched element (5) and rotation-limiting means (53) to limit the rotation of the arched element (5) for a pre-established portion of a circumferential arc, both being directly mounted on said support element (6), and in that said support element (6) is mounted by means of a simple cardan joint (40) on the proximal connector (2), said simple cardan joint (40) presenting a first axis of rotation (Z) that is perpendicular to the axis of rotation (X) of the arched element, and a second axis of rotation (Y) that is perpendicular to the first axis of rotation (Z) and movable with respect to the axis of rotation (X) of the arched element (5) along a circumferential arc whose center is located on the first axis of rotation (Z).