Patient Stand Assist and Therapy Devices and Methods

A system for assisting a person, comprising:

• a fixed frame;
• a lift arm assembly rotatably coupled to the frame;
• a sling including a sling body configured to be coupled to a person and at least one strap coupled to the fixed frame and configured to movably engage the lift arm assembly at a first joint;
• an actuation assembly configured to move the lift arm assembly with respect to the fixed frame to cause the sling to move from a first position to a second position to assist a person in moving between a first position and a second position;
• and
• a control system configured to control the actuation assembly as a function of a change in a characteristic of the person to vary the amount of assistance provided.

A method of rehabilitating a person using a person lift device, the method comprising the steps of:

• calculating a first amount of assistance provided by the person lift device to assist a person in moving between a first position and a second position at a first time;
• comparing the first amount of assistance to a previously determined amount of assistance;
• and
• providing a second amount of assistance as a function of the difference between the first amount of assistance and the previous amount of assistance to assist a person in moving between the first position and the second position at a second time.