Continuous passive motion device for upper extremity forearm therapy

A continuous passive motion device for a forearm, the forearm having a longitudinal anatomical axis, comprising:

• a) a proximal arm support member including a proximal stay member and a distal stay member slidably attached at a first end portion thereof to said proximal stay member, and securing means, adapted to secure a user's upper arm and elbow to said proximal stay member;
• b) an actuator including a housing and drive means defining a rotational axis, said housing being rigidly attached to an opposed end portion of said distal stay member;
• and
• c) a distal forearm support member including a distal forearm stay member attached to said drive means of said actuator for rotational motion about said rotational axis and distal forearm securing means adapted to secure a user's forearm to said distal forearm stay member with a longitudinal anatomical axis of a user's forearm being substantially coincident with said rotational axis, wherein during rotation of said distal forearm stay member a user's forearm undergoes pronation or supination about the rotational axis.

A continuous passive motion device for a forearm, the forearm having a longitudinal anatomical axis, comprising:

• a) a proximal arm support member including an L-shaped stay member with a vertical section and a horizontal section and securing means adapted to secure a user's upper arm and elbow to said L-shaped stay member;
• b) an actuator including a housing and a drive means defining a rotational axis, said housing being rigidly attached to said vertical section;
• and
• c) a distal forearm support member including a proximal forearm stay member drivingly connected at one end portion thereof to said drive means of said actuator and slidably connected at an opposed end portion thereof to an end portion of a distal forearm stay member, and wherein said proximal forearm stay member and said distal forearm stay member are telescopingly movable relative to one another for length adjustment, said distal forearm support member including a distal forearm cuff support connected to said distal forearm stay member adapted to firmly grip the ulna and radius styloid processes with the longitudinal anatomical axis of a user's forearm substantially collinear with said rotational axis so that during rotation of said distal forearm stay member a user's forearm undergoes pronation or supination about the rotational axis.

A continuous passive motion device for a forearm, the forearm having a longitudinal anatomical axis, comprising:

• a) an actuator including a housing and a drive means defining a rotational axis;
• b) a proximal arm support member connected to said housing, and securing means adapted to secure a user's upper arm and elbow to said proximal arm support member;
• and
• c) a distal forearm support member attached to said drive means for rotational motion about said rotational axis, and means adapted to be gripped by a user's hand mounted to said distal forearm support member so that a longitudinal anatomical axis of a user's forearm is substantially coincident with said rotational axis with said distal forearm support member spaced from said rotational axis so that during rotation of said distal forearm support member a user's distal forearm undergoes pronation or supination about the rotational axis.