A medical balloon for attachment to a catheter tube, and method of making the balloon. The balloon comprises a plurality of co-extruded and coextensive layers of different polymeric materials (20A, 20B) at least one of which is a base structural layer (20B) and the other of which (20A) is formed of polyethylene and copolymers thereof or of SELAR. The base structural layer is thicker than the other layer.
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a continuation of (and claims the benefit of priority under 35 U.S.C. .sctn. 120 to) U.S. patent application Ser. No. 08/465,370, filed Jun. 5, 1995, now abandoned, which is a continuation of U.S. patent application Ser. No. 08/209,203, filed Mar. 4, 1994, now abandoned, which is a continuation of U.S. patent application Ser. No. 08/013,566, filed Feb. 4, 1993, now abandoned, which is a divisional of U.S. patent application Ser. No. 07/691,999, filed Apr. 26, 1991, now U.S. Pat. No. 5,195,969.
