This is a Tool designed for a patient who had partially lost his thumb on his left hand (refer to pictures).
It allows him perfom tip grip and hold a nail or a screw.
The thimble had a PLA framework, a silicone Body, and a magnet. The silicone body is fabricated by pouring silicone inside a mold (refer to pictures)
The framework has circles that allow a better attachment of the silicone and has a prolongation to avoid hiperflexion of the patient thumb. The fluted mold shape is for better suspension over the patient stump (its tip was obtained from a 3D scan of the patient hand.).
This object was made for the "Mutual de Seguridad C.Ch.C" from Chile. In a project of the Direction of innovation and development, and the Neuro rehabilitation institute.
The process uses 3-D printed polylactic acid (PLA) molds and inside structure, and
Bath silicone .
First silicone is poured inside the mold that surround the exterior of the socket. Then the inside structure, with a magnet inserted on its tip, is embedded inside the silicone and then the mold is closed with the finger shape mold. The silicone is cured at room temperature for 1 hour. Finally, molds are removed and the socket is finished.
You can use moisturizing cream as mold release agent