US 12,144,494 B2
Embolic protection via biologic effect
John Arthur Pedersen, Eden Prairie, MN (US); Adam Tschida, Greenfield, MN (US); and Ben Arcand, Colorado Springs, CO (US)
Assigned to KONINKLIJKE PHILIPS N.V., Eindhoven (NL)
Appl. No. 17/274,455
Filed by KONINKLIJKE PHILIPS N.V., Eindhoven (NL)
PCT Filed Sep. 10, 2019, PCT No. PCT/EP2019/074042
§ 371(c)(1), (2) Date Mar. 9, 2021,
PCT Pub. No. WO2020/053178, PCT Pub. Date Mar. 19, 2020.
Claims priority of provisional application 62/729,146, filed on Sep. 10, 2018.
Prior Publication US 2022/0047280 A1, Feb. 17, 2022
Int. Cl. A61B 17/22 (2006.01); A61B 17/00 (2006.01); A61M 1/00 (2006.01)
CPC A61B 17/00491 (2013.01) [A61B 17/22 (2013.01); A61M 1/84 (2021.05); A61B 2017/00292 (2013.01); A61B 2017/00778 (2013.01); A61B 2017/22079 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A method of treating a subject, wherein the subject comprises a vascular system, the method comprising:
identifying a target area within the vascular system of the subject;
providing a catheter within the vascular system, wherein the catheter comprises:
a distal portion and a proximal portion;
a first lumen comprising a first opening disposed at the distal portion of the catheter;
an aspiration lumen comprising a second opening disposed at the distal portion of the catheter;
providing an introducer within the first lumen of the catheter, wherein the introducer comprises a needle having an exit port, wherein the introducer is slidable relative to the first lumen of the catheter;
inserting the needle into the target area and introducing a pharmacological agent to the target area via the exit port, wherein the pharmacological agent initiates a temporary vasospasm at the target area;
performing a vascular interventional technique; and
aspirating debris resulting from the vascular interventional technique through the aspiration lumen.