US 11,672,641 B2
Vascular filter system
Paul Gilson, Galway (IE); Steven Horan, Galway (IE); Karl Keating, Galway (IE); and Aidan Goggin, Redcastle (IE)
Assigned to Novate Medical Limited, Galway (IE)
Filed by Novate Medical Limited, Dublin (IE)
Filed on Mar. 3, 2020, as Appl. No. 16/807,613.
Application 16/807,613 is a continuation of application No. 15/379,115, filed on Dec. 14, 2016, granted, now 10,624,731.
Application 15/379,115 is a continuation of application No. 12/688,173, filed on Jan. 15, 2010, abandoned.
Claims priority of provisional application 61/145,387, filed on Jan. 16, 2009.
Prior Publication US 2020/0197150 A1, Jun. 25, 2020
Int. Cl. A61F 2/01 (2006.01)
CPC A61F 2/0103 (2020.05) [A61F 2/011 (2020.05); A61F 2002/016 (2013.01); A61F 2210/0004 (2013.01); A61F 2230/005 (2013.01); A61F 2230/0067 (2013.01); A61F 2230/0069 (2013.01); A61F 2230/0091 (2013.01); A61F 2250/003 (2013.01); A61F 2250/0031 (2013.01); A61F 2250/0059 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A vascular filter system comprising:
a vascular filter comprising at least one filter element, the filter being movable from a closed state adapted to capture thrombus passing through a blood vessel to an open state facilitating unrestricted blood flow, and
a holder adapted to hold the filter in the closed state for a predetermined period of time, said holder being biodegradable and/or bioabsorbable upon elapse of said predetermined period of time whereupon the filter is configured to move to the open state,
characterized in that the system further comprises a member adapted to at least temporarily extend a filtration period,
the member comprises a retainer adapted to at least temporarily retain the filter in the closed state beyond elapse of the predetermined period of time, and
the system comprises a delivery mechanism adapted to deliver the retainer to the filter when located in the blood vessel,
wherein the delivery mechanism is adapted to maintain a position of the filter relative to a blood vessel during delivery of the retainer, and to grasp the filter for delivery of the retainer,
wherein the retainer is extendable around at least part of the filter to retain the filter in the closed state, wherein at least part of the retainer is biodegradable and/or bioabsorbable.