The invention discloses a film-covered woven
body system for embolic
arterial aneurysms in the field of medical appliances. The film-covered woven
body system comprises a meshed woven body and a
delivery system connected with the woven body, the woven body is of a
gourd-shaped double-layer spherical structure after being released, the bottom of the woven body is flat, and a connection part of the woven body and the
delivery system is arranged inside the woven body, that is, the connection part is arranged not to protrude out of the woven body. The inner surface or the outer surface of the woven body is covered by a film. The film is made of
polytetrafluoroethylene and the like and is arranged in one layer or a plurality of
layers. Complete film coverage or partial film coverage can be adopted, but the bottom of the woven body needs be fully covered by the film. Compared with a woven body with no covering film, blood can be prevented more effectively from entering the
arterial aneurysm to cause
impact on the
aneurysm wall. Effects can be improved along with increase of the number of film
layers. Meanwhile, since the inner side of the woven body is covered by the film, meshes of the surface of the woven body can be made relatively sparse, the number of woven yarns for the woven body can be decreased, the size of the external contour can be reduced, and resistance in in-vivo delivery can also be reduced.