Method for Treatment Medical Devices Made from Nickel – Titanium (NiTi) Alloys
| Publication Number: | EP3636294A1 |
| Application Date: | 8. 10. 2018 |
| Assignee/Applicant: | Jožef Stefan Institute [SI] |
| Inventor: | Metka Benčina, Ita Junkar, Miran Mozetič, Rok Zaplotnik |
| Title: | Method for Treatment Medical Devices Made from Nickel – Titanium (NiTi) Alloys |
| Description: | The present invention improves the surface modification of NiTi alloys used for instance in medical devices through treatment with hydrogen particles in a suitable gaseous discharge and with oxygen atoms. The technique according to the present invention provides the formation of biocompatible solely titanium oxide layer thus preventing nickel to be present in the top surface layer. Furthermore this enables nanostructuring of the surface which depends on the treatment conditions. Devices made from NiTi alloys treated with the method according to the present invention have improved biocompatibility; platelets do not readily attach and activate on such surfaces and the thrombus formation rate is reduced in comparison with extensively used untreated NiTi alloys. |
| Drawings: |  |
| Category: | Nanotechnology and New Materials |
| Technology application codes: | Industrial manufacturing, material and transport, Biological sciences |
| Market application codes: | Medical / health related, Computer related |
| www: | https://worldwide.espacenet.com/patent/search/family/063798852/publication/EP3636294A1?q=EP3636294A1 |
| Patent offices: | EPO |
Extended patent application
| Publication Number: | US2020109469A1 |
| Application Date: | 7. 10. 2019 |
| Assignee/Applicant: | Jožef Stefan Institute [SI] |
| Inventor: | Metka Benčina, Ita Junkar, Miran Mozetič, Rok Zaplotnik |
| Title: | Method for Treatment Medical Devices Made from Nickel – Titanium (NiTi) Alloys |
| www: | https://worldwide.espacenet.com/patent/search/family/063798852/publication/US2020109469A1?q=US2020109469A1 |