DIALYSIS APPARATUS AND TECHNIQUE

摘要

A process of securing a cap on the end of a tubular artificial kidney casing wherein the casing has an outwardly extending encircling flange of fusible plastic near said end, the cap is also of fusible plastic and has a body thickness of at least about 2 millimeters, and the cap has a skirt that is welded to the flange by applying a high-frequency vibrating member to the cap body while supporting the remote face of the flange.