Magnetic target separation instrument and application thereof
US11331417B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Sep 26, 2016 |
| Grant date | May 17, 2022 |
| Priority date | — |
| Expiry date | Mar 16, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2400/12
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention relates to nanoparticles, a preparation method thereof, a stone removal device, a magnetic target separation instrument and its application. The nanoparticles include a nanoparticle core made of magnetic materials, and a nanoparticle shell formed by attaching surface modifier monomers to the nanoparticle core with an initiator and/or a crosslinking agent. The prepared nanoparticles can wrap stones in ureter, and then small stones remaining in body can be removed quickly without damage from the body under the action of the magnetic target separation instrument. The stones can be drawn and moved without injuring ureteral wall, and meanwhile be disposed conveniently without easy shift.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.