	US 12,303,600 B2
	Magnetic assisted drug delivery
Hao Shang, Irvine, CA (US); and Damacia Zhimei Shang, Irvine, CA (US)
Filed by Hao Shang, Irvine, CA (US); and Damacia Zhimei Shang, Irvine, CA (US)
Filed on May 29, 2020, as Appl. No. 16/888,355.
Claims priority of provisional application 62/856,047, filed on Jun. 1, 2019.
Prior Publication US 2020/0375900 A1, Dec. 3, 2020
Int. Cl. A61K 9/14 (2006.01); A61K 9/00 (2006.01); A61K 45/06 (2006.01); A61M 25/00 (2006.01)

CPC A61K 9/14 (2013.01) [A61K 9/0019 (2013.01); A61K 45/06 (2013.01); A61M 25/0043 (2013.01); A61M 2025/0057 (2013.01); A61M 2205/0272 (2013.01); A61M 2210/12 (2013.01)]

18 Claims

1. A method of delivering magnetic particles to a target site, comprising:

inserting a magnet catheter including one or more magnets into a blood vessel;

advancing the magnet catheter to a position downstream from the target site; and

releasing magnetic particles into the blood vessel upstream of the target site;

wherein a first portion of the magnetic particles embolize in the blood vessel; and

wherein a second portion of the magnetic particles attach to a magnet of the magnet catheter and do not embolize within a blood vessel.