SHAPING IMPROVEMENTS FOR INFERIOR VENA CAVA FILTER AND RETRIEVAL SYSTEMS

摘要

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.

主权项

1. An apparatus for delivery or retrieval of a vascular medical device, the apparatus comprising:
an elongate sleeve, and an elongate shaft having a longitudinal axis and received within the sleeve, the shaft having a flexible distal extension, the extension folded-back inwardly at a distal opening and forming a more proximal opening, the distal opening having a saddle shape and being set at an acute angle relative to the axis of the shaft; wherein the proximal opening is sized to receive and pass an enlarged end of the medical device therethrough, and wherein the apparatus is adapted so the enlarged end of the medical device is secured in a pocket within the distal extension when the sleeve is advanced over the distal extension.