Degradable magnesium alloy in-situ composite anastomotic staple and a preparation method thereof
US12357301B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2022 |
| Grant date | Jul 15, 2025 |
| Priority date | — |
| Expiry date | Feb 23, 2044 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2400/18
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present disclosure relates to the technical field of biomedical materials, more particularly to a degradable magnesium alloy in-situ composite anastomotic staple and a preparation method thereof. The anastomotic staple, with a composite structure, is mainly composed of Mg—Zn—Nd magnesium alloy with high strength and good plasticity (internal part), and corrosion-resistant MgF2 (external part), and is formed by in-situ synthesis of MgF2 with the outer layer of Mg—Zn—Nd magnesium alloy anastomotic staple. The magnesium alloy composite anastomotic staple provided by the present disclosure has good plastic deformation ability and mechanical strength, a low degradation rate, and a high biosafety level, which can meet the in-vivo implantation requirements. In addition, it can gradually degrade in vivo after achieving the medical effects in vivo, avoiding a second operation for removal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.