US 12,226,302 B2
Vena cava filter with filament
Keith S. Harris, Chandler, AZ (US); Andrzej J. Chanduszko, Chandler, AZ (US); Joshua A. Smale, Tempe, AZ (US); and Karen A. Diclaudio, Phoenix, AZ (US)
Assigned to C.R. BARD, INC., Murray Hill, NJ (US)
Filed by C.R. BARD, INC., Murray Hill, NJ (US)
Filed on Oct. 20, 2020, as Appl. No. 17/075,161.
Application 17/075,161 is a continuation of application No. 15/965,347, filed on Apr. 27, 2018, granted, now 10,842,608.
Application 15/965,347 is a continuation of application No. 14/843,913, filed on Sep. 2, 2015, granted, now 9,980,804, issued on May 29, 2018.
Application 14/843,913 is a continuation of application No. 12/093,814, granted, now 9,131,999, issued on Sep. 15, 2015, previously published as PCT/US2006/044826, filed on Nov. 17, 2006.
Claims priority of provisional application 60/737,895, filed on Nov. 18, 2005.
Prior Publication US 2021/0100646 A1, Apr. 8, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A61F 2/01 (2006.01); A61F 2/07 (2013.01)
CPC A61F 2/01 (2013.01) [A61F 2/011 (2020.05); A61F 2002/016 (2013.01); A61F 2002/018 (2013.01); A61F 2/07 (2013.01); A61F 2002/075 (2013.01); A61F 2210/0004 (2013.01); A61F 2210/0014 (2013.01); A61F 2220/0016 (2013.01); A61F 2230/0006 (2013.01); A61F 2230/0067 (2013.01); A61F 2230/0091 (2013.01); A61F 2250/001 (2013.01)] 2 Claims
OG exemplary drawing
 
1. A method of deploying a blood vessel filter in a blood vessel having a blood vessel wall, the filter comprising:
a) a circumferentially extending rounded filter frame having an open interior portion and a first maximum width;
b) multiple transverse filaments that are spaced circumferentially around said frame, said filaments spanning across the open interior portion;
c) wherein said filaments form a mesh like surface that allows fluid and blood cells to pass through but that captures blood clots;
d) a catheter having a lumen with a lumen diameter that is smaller than said first maximum width;
e) said filter frame having a deployed configuration wherein said frame is expanded into the first maximum width and a storage configuration having a storage width that is smaller than said first maximum width of said deployed configuration; and
f) one or more hooks on said frame that are positioned to anchor said frame to a blood vessel wall;
and wherein the method comprises the steps of:
moving said filter frame from said deployed configuration to said storage configuration by twisting said frame into a configuration that includes multiple rounded subsections, each said subsection having a width that is smaller than said first maximum width; and
bending the frame of the rounded subsections into a generally circular configuration that enables the filter frame to occupy said catheter lumen,
loading the filter into said catheter for delivery to the blood vessel.