Wrist Joint for Prosthesis (v2)

grabcad

"Wrist Joint for Prosthesis (v1)" was designed to be 3D printed as a single assembly. This version is designed to be printed as separate parts on an FDM printer. Since the ball and socket snap together, this could be used as a quick disconnect system for attaching different terminal devices.The Socket (YELLOW) is able to be locked at 45 degrees in 8 directions and at 90 degrees in 4 directions. One or more Locking Pins (RED) can be inserted wherever holes line up. I have shown a 3D printed Locking Pin, but off-the-shelf hardware could also be used. Two opposing Pins could be used to convert the ball joint to a pivot joint.To show how the wrist joint could be used with another terminal device, I added a Pulley (GREEN) to the Socket and attached a quick-disconnect fitting and sample 3D printed attachment (hair comb) that I had previously submitted for one of the VA Innovation Creation Challenges (Quick Disconnect Interface (Snappy Tools)).