Abstract: A method of producing a custom medical device including a splint or brace for immobilization of a selected region of a patient's body part. The custom medical device is produced in accordance with the following operations: (a) production of a three-dimensional mold of a portion of the patient's body part including the selected region onto which the desired medical device is to be placed; (b) definition of a three-dimensional shape of the desired medical device covering the selected region; (c) generation of a two-dimensional template corresponding to the defined three-dimensional shape, and which corresponds to unfolding in a two-dimensional plane of the three-dimensional shape of the desired medical device; (d) production of at least one plate of moldable material in accordance with the two-dimensional template of the desired medical device; and (e) molding of the plate of moldable material onto the three-dimensional mold to shape the desired medical device.