US 12,115,324 B2
Guidewire devices having shapeable polymer tips
John A Lippert, Park City, UT (US); and Edward J. Snyder, Park City, UT (US)
Assigned to SCIENTIA VASCULAR, INC., West Valley City, UT (US)
Filed by SCIENTIA VASCULAR, INC., West Valley City, UT (US)
Filed on Feb. 17, 2021, as Appl. No. 17/177,764.
Application 17/177,764 is a continuation of application No. 15/611,344, filed on Jun. 1, 2017, granted, now 10,953,203.
Claims priority of provisional application 62/363,760, filed on Jul. 18, 2016.
Prior Publication US 2021/0162184 A1, Jun. 3, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 25/09 (2006.01); A61L 31/02 (2006.01); A61L 31/18 (2006.01); A61M 25/00 (2006.01)
CPC A61M 25/09 (2013.01) [A61L 31/022 (2013.01); A61L 31/18 (2013.01); A61M 25/0051 (2013.01); A61M 2025/09075 (2013.01); A61M 2025/09083 (2013.01); A61M 2025/09091 (2013.01); A61M 2025/09133 (2013.01); A61M 2025/09141 (2013.01); A61M 2025/0915 (2013.01); A61M 2025/09166 (2013.01); A61M 2025/09175 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A guidewire device comprising:
a core having a proximal section and a distal section, the distal section having a smaller diameter than the proximal section;
a tube structure coupled to the core such that the distal section of the core passes into the tube structure, and wherein an end portion of the core passes distally beyond the tube structure, wherein the tube structure includes a plurality of fenestrations defining a plurality of axially extending beams and a plurality of circumferentially extending rings;
a braided material coupled to a distal end of the tube structure and extending distally from the tube structure, the braided material encompassing at least a portion of the end portion of the core;
a polymer section comprising a polymer material coupled to the distal end of the tube structure and extending distally from the tube structure, wherein the polymer material encompasses and bonds to the full end portion of the core extending distally from the tube structure, and wherein the polymer material radially extends outward from the end portion of the core to define an outer diameter of the polymer section; and
a coil partially disposed within the tube structure and partially extending distally beyond the tube structure, wherein the coil has an outer diameter that is less than an inner diameter of the tube structure, wherein the coil includes a portion disposed within the tube structure and a portion that extends distally beyond the tube structure, wherein the portion that extends distally beyond the tube structure is longer than the portion disposed within the tube structure.