US 12,070,382 B2
Filter apparatuses and methods
J. Eric Goslau, Evergreen, CO (US); and Daniel D. Sims, Arvada, CO (US)
Assigned to Transverse Medical, Inc., Evergreen, CO (US)
Appl. No. 17/761,454
Filed by Transverse Medical, Inc., Evergreen, CO (US)
PCT Filed Sep. 18, 2020, PCT No. PCT/US2020/051599
§ 371(c)(1), (2) Date Mar. 17, 2022,
PCT Pub. No. WO2021/055826, PCT Pub. Date Mar. 25, 2021.
Claims priority of provisional application 62/902,778, filed on Sep. 19, 2019.
Prior Publication US 2022/0331084 A1, Oct. 20, 2022
Int. Cl. A61F 2/01 (2006.01); A61F 2/90 (2013.01)
CPC A61F 2/011 (2020.05) [A61F 2/90 (2013.01); A61F 2002/016 (2013.01); A61F 2002/018 (2013.01); A61F 2240/001 (2013.01)] 26 Claims
OG exemplary drawing
 
1. An apparatus comprising:
an extension arm;
an asymmetrical frame having a narrow proximal end connected to the extension arm and extending to a wide distal end extending away from the extension arm; and
a filter having opposing surface areas terminating around a perimeter of the filter, the filter being configured and arranged with the frame and the extension arm to conform one of the opposing surface areas to an inner sidewall of a tubular structure, the frame being laterally and longitudinally asymmetrical relative to a longitudinal direction corresponding to a length of the extension arm and to a lateral direction extending across the filter and perpendicular to the longitudinal direction.
 
25. A method of manufacturing an apparatus,
comprising:
providing an extension arm;
providing a frame material;
affixing the frame material in a fixture that mimics internal sidewall features of a tubular structure;
setting the frame material to an asymmetrical shape defined by the fixture and that mimics the internal sidewall features of the tubular structure, the frame material including a narrow proximal end extending to a wide distal end;
connecting the narrow proximal end of the frame material to the extension arm with the wide distal end extending away from the extension arm; and
coupling a filter having opposing surface areas to the frame material with the opposing surface areas terminating around a perimeter of the filter, the filter being operable with the frame material and the extension arm to conform one of the opposing surface areas to an inner sidewall of the tubular structure, the asymmetrical shape being laterally and longitudinally asymmetrical relative to a longitudinal direction corresponding to a length of the extension arm and to a lateral direction extending across the filter and perpendicular to the longitudinal direction.