LTD.;SHANGHAI CLINICAL ENGINE TECHNOLOGY DEVELOPMENT CO.
发明人:
Yinghao SUN
申请号：
US15763611
公开号：
US20180271609A1
申请日:
2016.09.29
申请国别(地区):
US
年份:
2018
代理人:
摘要：
The invention relates to a method of a magnetic material in stone removal, nanoparticles, a preparation method thereof and a stone removing device. Wherein, the magnetic material constitutes a nanoparticle core and a surface modifier monomer is attached to the nanoparticle core by an initiator and/or a crosslinking agent to form a nanoparticle shell. The prepared nanoparticles can surround stones in ureter, thereby, small stones remaining in body can be removed quickly without damage from the body under action of external magnetic field, that is, the stone can be drawn and moved without injuring ureteral wall, and the nanoparticles are placed conveniently without shift.
