Patent ID: 9737374
Date: 2017-08-22
CPC Classifications: A61B,A61F,B25J

Claim:
1. A system for supporting an arm of a user, comprising: A harness configured to be worn on a body of a user; An arm support coupled to the harness configured to support an arm of a user, the arm support configured to accommodate movement of the arm while following the movement without substantially interfering with the movement of the user's arm, the arm support comprising: A first arm support segment pivotally coupled to the harness about a first vertical axis such that the first arm support segment is rotatable substantially horizontally about the first vertical axis relative to the harness; A second unitary arm support segment comprising a first end pivotally coupled to the first arm support segment such that the second arm support segment is rotatable about a second axis orthogonal to the first vertical axis, a second free end; and An arm rest carried on the second arm support segment for supporting an upper arm of the user's arm; and One or more compensation elements coupled to the arm support to apply an offset force to at least partially offset a gravitational force acting on the arm as the user moves and the arm support follows the movement of the user's arm, the one or more compensation elements varying the offset force applied to the second arm support segment as the second arm support segment rotates about the second axis when the user raises or lowers the arm.