US 12,465,478 B2
Embolic filter system
William D. Montgomery, Flagstaff, AZ (US); and Edward E. Shaw, Flagstaff, AZ (US)
Assigned to W. L. Gore & Associates, Inc., Newark, DE (US)
Filed by W. L. Gore & Associates, Inc., Newark, DE (US)
Filed on Apr. 8, 2022, as Appl. No. 17/716,049.
Application 17/716,049 is a continuation of application No. 16/478,712, granted, now 11,298,218, previously published as PCT/US2018/014395, filed on Jan. 19, 2018.
Claims priority of provisional application 62/448,802, filed on Jan. 20, 2017.
Prior Publication US 2022/0296354 A1, Sep. 22, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61F 2/01 (2006.01)
CPC A61F 2/013 (2013.01) [A61F 2/0105 (2020.05); A61F 2/011 (2020.05); A61F 2/014 (2020.05); A61F 2002/016 (2013.01); A61F 2002/018 (2013.01); A61F 2230/0067 (2013.01); A61F 2230/0069 (2013.01); A61F 2250/0024 (2013.01); A61F 2250/0039 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An embolic filter comprising:
an elongate element having a proximal end and a distal end, the elongate element including a first structural element and a first covering material, the elongate element having sufficient structural integrity to support being advanced within a delivery sheath;
a filter portion positioned at the distal end of the elongate element, the filter portion including a second structural element and a second covering material, wherein a portion of the second covering material includes a plurality of perforations configured to filter embolic debris from blood flowing into the filter portion; and
a constraining fiber routed about an interior or an exterior of the second structural element of the filter portion and configured to control expansion or collapse of the filter portion.