Blood filter devices, systems, and methods of using the same to detect the presence of a thrombus within said filter devices

A system for detecting a thrombus or other blood particulate matter of a threshold size within a vessel, comprising:

• a device, comprising:
• a filter having a head and a plurality of legs extending distally therefrom, configured to capture the thrombus or other blood particulate matter of at least a threshold size;
• and
• at least one impedance element positioned distal to the head and configured to detect a presence of the thrombus or other blood particulate matter of at least a threshold size within the filter by obtaining data within a bloodstream when the filter is positioned within the bloodstream;
• and
• a console operably coupled to the device, configured to wirelessly obtain data from the device, based the data received from the at least one impedance element positioned within the bloodstream of a vessel;
• wherein the system further comprises a sheath having a distal balloon positioned thereon, the sheath configured to be positioned around at least part of the filter within a blood vessel, wherein the balloon is configured for inflation within the blood vessel, wherein the inflation causes the balloon to inflate both outward toward the blood vessel, and proximally along the sheath, and wherein the balloon at least partially surrounds the blood filter device when inflated.

A method for safely removing a blood filter device from within a blood vessel, comprising the steps of:

• surrounding at least part of the blood filter device with a sheath retrieval device, the blood filter device configured to capture a thrombus or other blood particulate matter of at least a threshold size, the blood filter device comprising:
• a head and a plurality of legs extending therefrom, and
• at least one impedance element positioned distal to the head and configured to detect a presence of the thrombus or other blood particulate matter of at least a threshold size within the blood filter device by obtaining data within a bloodstream when the blood filter device is positioned within the bloodstream;
• and
• inflating a balloon positioned on a distal end of the sheath retrieval device, wherein inflating the balloon within the blood vessel causes the balloon to inflate both outwardly toward blood vessel walls, and proximally along the sheath, wherein the balloon at least partially surrounds the blood filter device when inflated;
• and
• retracting the blood filter device up into the sheath retrieval device while the balloon provides continuous pressure against the blood vessel walls to safely detach the legs of the blood filter device from the blood vessel walls of a patient.