Process for making a kneecap and kneecap

摘要

A method of manufacturing an elbow channel with an elbow angle. The method comprises manufacturing an elongated filament-reinforced plastic composite hollow body by a filament winding technology; miter-cutting the elongated hollow body at a cut angle, which is half of the desired elbow angle, to form a first body piece having an oblique first end, and a second body piece having an oblique second end; placing the first body piece and the second body piece in relation to each other to abut the first end and the second end against each other, so that the longitudinal symmetry axes of the first and second body pieces are at said elbow angle to each other; and attaching the first end and the second end to each other to form said elbow channel. The elbow channel is formed from first and second hollow body pieces is also provided.