Orthosis that immobilises the elbow in extension. Made from terrycloth on the inside and honeycomb fabric and velour on the outside; featuring rigid aluminium splints on the back and sides; fastening by means of Velcro straps. It is designed with an opening in the front to enable the use of peripheral venous access devices. The material is breathable and washable for proper hygiene of the orthosis. It comes in three sizes and can be used interchangeably on the left and right arm.