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US 12,303,600 B2Granted
Magnetic assisted drug delivery
OwnerHao Shang, Damacia Zhimei Shanginventors
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Abstract
A method of delivering magnetic particles to a target site, including inserting a magnet catheter 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; in which a first portion of the magnetic particles embolize in the blood vessel is disclosed. A system is also disclosed.
Claims18
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.
4 more elements
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;
- releasing magnetic particles into the blood vessel upstream of the target site, a first portion of the magnetic particles embolizing in a blood vessel within the target site and a second portion of the magnetic particles attaching to a magnet of the magnet catheter, the second portion of magnetic particles not embolizing within a blood vessel;
- and
- removing the magnet catheter with the second portion of magnetic particles;
- wherein the blood vessel within the target site has a diameter that is less than an average particle size of the magnetic particles.
3 more elements
Dependencies are inferred from the claim text.