Vascular filter device

US8668713B2 · kind B2 · utility

Assignee

• Novate Medical Limited · IE

Inventors

• Steven Horan · Galway, IE
• Paul Gilson · Moycullen, IE
• Karl KEATING · Galway, IE
• Aidan Dominic Goggin · Moville, IE
• Jerome Henry · Pittsboro, US
• Jacqueline O'Gorman · Ennis, IE
• Shane Molloy · Lackagh, IE

Key dates

• Filing date: Jan 15, 2010
• Grant date: Mar 11, 2014
• Expiry date: May 13, 2031

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/49826
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A vascular filter device (1) comprises a plurality of filter elements (6) which are movable from a capturing position to an open position upon elapse of a predetermined period of time. In the capturing position the filter elements (6) are configured to capture thrombus passing through the inferior vena cava. In the open position the filter elements (6) are configured to facilitate unrestricted blood flow. The filter elements (6) are biased towards the open position. The filter (1) comprises a holder member (10) to temporarily hold the filter elements (6) in the capturing position until elapse of the predetermined period of time. The holder member (10) comprises a biostable wire element (12) which extends through an opening (13) in each filter element (6), and a biodegradable/bioabsorbable stop element (11). Upon biodegrading/bioabsorbing of the stop element (11), the filter elements (6) are free to move from the capturing position to the open position.