Material for medical use comprising nanoparticles with superparamagnetic properties and its utilization in surgery

摘要

This invention relates to a material for medical use that comprises biocompatible nanoparticles having superparamagnetic properties, where the superparamagnetic properties of said nanoparticles are used to localize their action on a determined space or tissue. In particular, said nanoparticles having superparamagnetic properties are composed of magnetite. The material according to the invention has various applications, both in surgical and in therapeutic treatments.

主权项

1. A procedure for tamponading a patient's retina, comprising the following steps in order:
i. submitting the patient to a vitrectomy; ii. injecting a material into the patient's intravitreous space, wherein the material is in the form of a liquid suspension comprising biocompatible nanoparticles having superparamagnetic properties, and the liquid suspension does not contain a polymeric material; and iii. through application of a magnetic field created by a magnet located outside the eye, attract the nanoparticles to push and maintain the retina applied against an inner wall of the patient's eye,
wherein a step of polymerizing the nanoparticles does not take place between steps ii and iii.