US 12,144,943 B2
Enhanced guide wire advancement length
Huy N. Tran, Riverton, UT (US)
Assigned to Bard Access Systems, Inc., Salt Lake City, UT (US)
Filed by Bard Access Systems, Inc., Salt Lake City, UT (US)
Filed on May 6, 2021, as Appl. No. 17/313,901.
Claims priority of provisional application 63/021,502, filed on May 7, 2020.
Prior Publication US 2021/0346655 A1, Nov. 11, 2021
Int. Cl. A61M 25/09 (2006.01); A61M 25/01 (2006.01)
CPC A61M 25/09041 (2013.01) [A61M 25/0133 (2013.01); A61M 2025/09066 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A system for advancing a guidewire from an insertion tool, comprising:
a guidewire advancement assembly slidably engaged with the insertion tool and configured to transition between a proximal position and a distal position, the guidewire advancement assembly comprising:
a slider defining a slider channel; and
a guidewire carrier defining a lumen configured to receive the guidewire therethrough, the guidewire carrier defining a non-linear resting state, wherein the slider channel is configured to receive the guidewire carrier and transition the guidewire carrier from the non-linear resting state to a linear extended state as the guidewire advancement assembly transitions from the proximal position to the distal position, and wherein the guidewire advancement assembly in the distal position maintains as entirety of the guidewire carrier in the linear extended state.
 
12. A method of extending a guidewire from an insertion tool, comprising:
providing a guidewire advancement assembly transitionable between a proximal position and a distal position, and comprising:
a slider defining a channel; and
a guidewire carrier engaged with the channel of the slider, and defining a lumen configured to receive the guidewire therein, the guidewire carrier biased to a non-linear resting state;
advancing the guidewire advancement assembly from the proximal position to the distal position;
sliding the slider along an outer surface of the guidewire carrier;
transitioning the guidewire carrier from the non-linear resting state to an extended state, the guidewire advancement assembly in the distal position maintaining an entirety of the guidewire carrier in a linear extended state; and
advancing a tip of the guidewire in a distal direction.