In-vivo absorbable metal surgical staple and preparation method thereof

The invention relates to a device in the technical filed of medical apparatus and instruments, in particular to an in-vivo absorbable metal surgical staple and a preparation method thereof. The surgical staple is made of a magnesium alloy, the length of a staple body is 3.0-20.0 mm, and the length of a staple leg is 3.0-20.0 mm. The magnesium alloy sequentially comprises components in percentage by mass as follows; 2.0-5.8% of Zn, 0.2%-0.7% of Ca, 0.3%-0.5% of Fe, 3%-4% of Mn and the balance of Mg.