Vascular filter device

US9833304B2 · kind B2 · utility

Assignee

• Novate Medical Limited · IE

Inventors

• Steven Horan · Galway, IE
• Paul Gilson · Moycullen, IE
• Karl KEATING · Galway, IE
• Jerome Henry · Pittsboro, US
• Jacqueline O'Gorman · Ennis, IE
• Ronan O'Connor · Claregalway, IE
• Shane Molloy · Lackagh, IE

Key dates

• Filing date: Jan 15, 2010
• Grant date: Dec 5, 2017
• Expiry date: Nov 26, 2031

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2250/0059
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A vascular filter device comprises a support; and a filter comprising one or more filter elements configured to capture thrombus passing through a blood vessel. A holder holds the filter in a closed filtering state and releases to convert the filter to an open state after a period of time. The filter is adapted to retain thrombus after said conversion. In one case the filter elements are arranged to remain in a closed state after release by the holder, because they are blocked by a retained clot from opening fully, and the filter elements are biased to the open state with a bias level which is counter balanced by force exerted by a retained clot under action of blood flow.