Funnel-trap type devices are described that are made of shape-set (e.g., heatset) braid for delivery and/or retrieval of Inferior Vena Cava (IVC) filters or other medical devices. Delivery and/or retrieval devices, kits in which they are included, methods of use and methods of manufacture are all contemplated. Additional forming tooling, methods and device embodiment shapes are described herein.L'invention concerne des dispositifs de type pièges en entonnoir faits d'un maillage à forme fixe (par exemple thermofixé) pour poser et/ou retirer des filtres de veine cave inférieure ou autres dispositifs médicaux. L'invention concerne également des dispositifs de pose et/ou de retrait, des procédés d'utilisation et des procédés de fabrication.