	US 11,969,519 B1
	Implant comprising magnesium alloy and a method for preparing thereof
Timo Lehtonen, Raisio (FI); Kimmo Lähteenkorva, Tampere (FI); Anna-Maija Haltia, Turenki (FI); and Christopher Stahle, Tampere (FI)
Assigned to Bioretec Oy, Tampere (FI)
Filed by Bioretec Oy, Tampere (FI)
Filed on May 26, 2023, as Appl. No. 18/324,388.
Claims priority of application No. 23174999 (EP), filed on May 24, 2023.
Int. Cl. A61L 27/00 (2006.01); A61F 2/28 (2006.01); A61F 2/30 (2006.01); A61L 27/04 (2006.01); A61L 27/44 (2006.01); A61L 27/58 (2006.01); A61L 31/02 (2006.01); A61L 31/14 (2006.01); C22C 1/02 (2006.01); C22C 23/00 (2006.01); C22F 1/06 (2006.01)

CPC A61L 27/047 (2013.01) [A61L 27/042 (2013.01); A61L 27/446 (2013.01); A61L 27/58 (2013.01); A61L 31/022 (2013.01); A61L 31/148 (2013.01); C22C 1/02 (2013.01); C22C 23/00 (2013.01); C22F 1/06 (2013.01); A61L 2420/02 (2013.01)]

19 Claims

1. An orthopedic implant or a part thereof, comprising biodegradable magnesium alloy comprising magnesium and

Ca in the range of 0.550-0.700 wt %,

Zn in the range of 0.400-0.700 wt %, and

Fe 50 ppm or less,

the biodegradable magnesium alloy consisting of two phases comprising

a first phase comprising magnesium and Zn, and

a second phase less noble than the first phase, the second phase comprising Mg₂Ca precipitates larger than nano-sized.