CALIPER TRACTION APPARATUS Russian patent published in 2004 - IPC

FIELD: medical engineering.

SUBSTANCE: device has supporting and movable platforms joined via two-stage traction members and frames composed of two clamps rigidly connected to each other with a pair of threaded pins. Each of two two-stage traction members has two orthogonal adjustment members. Adjustment member bushings of each of two-stage traction members are rigidly connected to each other. The threaded pins of supporting and movable platforms frames are at the same time threaded pins of adjustment members of the two-stage traction members. The threaded pins of the adjustment members arranged in perpendicular to them are rigidly fixed with one ends on the platforms and with their second ends join the supporting and rotatable platforms by means of the first order articulated connections so that articulation axis is within the central pin control zone.

EFFECT: high accuracy of spatial control.

2 dwg