Orthosis system with interchangeable effector assembly

A user replaceable orthosis effector assembly that couples to a wearable assembly, the effector assembly comprising:

• an effector portion;
• a tension element that moves within the effector portion to actuate the effector portion, the tension element having a first end extending out of an end surface of the effector assembly and a second end attached within the effector portion;
• and
• a securing feature at the first end.

A wearable assembly that couples to a user replaceable orthosis effector assembly, the wearable assembly comprising:

• a motor mechanism;
• a coupler movable by the motor mechanism between a starting location and an unloading location, wherein the coupler has a receiving space, a sleeve and an engagement element;
• and
• an end plate at the unloading location, the end plate having a lip that is aligned with the sleeve;
• wherein the sleeve is biased toward an engaged position in which the engagement element protrudes into the receiving space;
• and
• wherein when the coupler is in the unloading location, the lip moves the sleeve to a disengagement position, the engagement element being withdrawn from the receiving space in the disengagement position.