ivc filter recycling system with multiple capture modes

Abstract

A funnel catch type delivery and / or retrieval device is described for use with temporary inferior vena cava (IVC) filters or other medical implants or foreign bodies. These devices may employ a locking sheath or a proximal aperture capture feature or features for IVC filter (or other device) retrieval.

Description

technical field [0001] Embodiments described herein relate to intravascular temporary inferior vena cava (IVC) filters, other implants, or other foreign body retrieval devices or systems and methods. Background technique [0002] Temporary IVC filters are placed much like permanent filters, but are designed so that they can be retrieved generally via the femoral or internal jugular vein route in a separate endovascular procedure. Most currently available temporary filters include hooked features by which they can be captured and received within a catheter or sheath for removal by employing a gooseneck snare or a multi-loop snare. [0003] Although in principle recovery is a simple procedure, difficulties are often faced when utilizing the snare loop(s) to capture the filter's hook. Such difficulties are exacerbated when the filter is tilted or unbalanced in placement. Several filters are designed to avoid such orientation. However, the problem still prevails because the d...

AI Technical Summary

Problems solved by technology

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

Constant blood flow other than blood clots can disorient the filter within the IVC, making it difficult to recapture

Images