US 12,137,923 B2
Guide wire tip having roughened surface
Puneet Kamal Singh Gill, Anaheim, CA (US); Jonathan Durcan, Temecula, CA (US); Jakub Truty, La Verne, CA (US); Matthew J. Chludzinski, Poway, CA (US); and John Simpson, Carlsbad, CA (US)
Assigned to Abbott Cardiovascular Systems Inc., Santa Clara, CA (US)
Filed by Abbott Cardiovascular Systems Inc., Santa Clara, CA (US)
Filed on Aug. 18, 2022, as Appl. No. 17/891,060.
Application 17/891,060 is a division of application No. 16/245,032, filed on Jan. 10, 2019, granted, now 11,452,533.
Prior Publication US 2023/0088749 A1, Mar. 23, 2023
Int. Cl. A61B 17/22 (2006.01); A61M 25/09 (2006.01); A61B 17/00 (2006.01); A61M 25/00 (2006.01)
CPC A61B 17/22 (2013.01) [A61M 25/09 (2013.01); A61B 2017/00858 (2013.01); A61B 2017/22038 (2013.01); A61B 2017/22094 (2013.01); A61M 2025/006 (2013.01); A61M 2025/09083 (2013.01); A61M 2025/09108 (2013.01); A61M 2025/09133 (2013.01); A61M 2025/09175 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A guidewire, comprising:
an elongated core member having a proximal core section and a distal core section;
a distal tip attached to a distal end of the distal core section, the distal tip formed from a metallic alloy or polymer and having a roughened outer surface for use in penetrating stenosed lesions in vessels; and
the distal tip abuts a plurality of helical wire coils having an outer surface, wherein the outer surface of at least three of the plurality of helical wire coils has the same roughened outer surface as the distal tip.