Ivc filter retrieval systems with releasable capture feature

Abstract

Funnel-trap type devices or systems made of braid are described for capture and retrieval or, instead, capture and subsequent release 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.

Description

technical field [0001] Embodiments described herein relate to devices or systems and methods for the retrieval of intravascular temporary inferior vena cava (IVC) filters or other implants. Background technique [0002] Temporary IVC filters are placed much like permanent filters, but are designed so that they can be retrieved in a separate endovascular procedure, typically from the femoral or internal jugular vein access. Most currently available temporary filters include hooked features that can be used to capture and receive them within a catheter or sheath to allow them to be removed by using a gooseneck snare or a multi-loop snare. snare) to remove. [0003] Although recovery is in principle a simple process, difficulties are often encountered when utilizing the loops of the snare to catch the hooks of the filter. This difficulty is exacerbated when the filter is tilted or placed improperly. Several filters are designed to avoid such orientation. However, this probl...

AI Technical Summary

Problems solved by technology

However, this problem is still common because the device is not anchored into the IVC in a stable manner

In addition to blood clots, continued blood flow can disorient the filter within the IVC, making recapture difficult

Images