US 12,343,485 B2
High torque guidewire device
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 Jul. 21, 2021, as Appl. No. 17/382,271.
Application 17/382,271 is a continuation in part of application No. 17/154,777, filed on Jan. 21, 2021, granted, now 12,178,975.
Claims priority of provisional application 63/180,061, filed on Apr. 26, 2021.
Claims priority of provisional application 62/965,005, filed on Jan. 23, 2020.
Prior Publication US 2021/0346656 A1, Nov. 11, 2021
Int. Cl. A61M 25/09 (2006.01)
CPC A61M 25/09041 (2013.01) [A61M 25/09 (2013.01); A61M 2025/09091 (2013.01); A61M 2025/09133 (2013.01); A61M 2025/0915 (2013.01); A61M 2025/09166 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A guidewire device comprising:
a core including a proximal section and a distal section;
an outer tube coupled to the core, wherein the distal section of the core is configured to pass into and is encompassed by the outer tube;
a distal coil encompassing part of the distal section of the core;
a proximal coil disposed proximal of the distal coil and encompassing part of the distal section of the core; and
a bushing coil disposed over at least a portion of one or both of the distal coil and the proximal coil,
wherein the proximal coil and the distal coil are each wound in a first direction, and the bushing coil is counter-wound in a second, opposite direction.