MAGNESIUM-BASE ALLOY FOR USE IN BONE SURGERY

• US 3,687,135 A
• Filed: 09/15/1969
• Issued: 08/29/1972
• Est. Priority Date: 08/20/1969
• Status: Expired due to Term

• Current Assignee: Evgeny Mikhailovich Savitsky, Genrikh Borisovich Stroganov, Konstantin Mitrofanovich Sivash, Mstislav Vasilievich Volkov, Nina Mikhailovna Tikhova, Vera Fedorovna Terekhova, Vladislav Sergeevich Borodkin
• Original Assignee: Evgeny Mikhailovich Savitsky, Genrikh Borisovich Stroganov, Konstantin Mitrofanovich Sivash, Mstislav Vasilievich Volkov, Nina Mikhailovna Tikhova, Vera Fedorovna Terekhova, Vladislav Sergeevich Borodkin
• Inventors: Savitsky, Evgeny Mikhailovich, Tikhova, Nina Mikhailovna, Volkov, Mstislav Vasilievich, Sivash, Konstantin Mitrofanovich, Stroganov, Genrikh Borisovich, Terekhova, Vera Fedorovna, Borodkin, Vladislav Sergeevich
• Primary Examiner(s): Lovell, Charles N.
• Application Number:
  US04/858,149
• Time in Patent Office: 1,079 Days
• Field of Search: 75/168 128/92R,92B,92BB,92BA,92BC,92C,92CA,92D 3/1
• US Class Current: 606/76
• CPC Class Codes: A61B 17/58 for osteosynthesis, e.g. bone plates, screws , setting implements or the like A61B17/14, A61B17/16 take precedence
• CPC Class Codes: A61B 2017/00004 (bio)absorbable, (bio)resorbable or resorptive
• CPC Class Codes: A61F 2310/00041 Magnesium or Mg-based alloys
• CPC Class Codes: A61L 2430/02 for reconstruction of bones; weight-bearing implants
• CPC Class Codes: A61L 31/022 Metals or alloys
• CPC Class Codes: A61L 31/148 Materials at least partially resorbable by the body
• CPC Class Codes: C22C 23/00 Alloys based on magnesium
• CPC Class Codes: C22C 23/06 with a rare earth metal as the next major constituent
• CPC Class Codes: C22C 24/00 Alloys based on an alkali or an alkaline earth metal
• CPC Class Codes: C22C 25/00 Alloys based on beryllium

Abstract

A magnesium-base alloy for use in bone surgery which contains the following components, wt.%: Rare earth element 0.4-4.0 Cadmium 0.05-1.2 An element from the group consisting of calcium and aluminum 0.05-1.0 Manganese 0.05.05 Silver 0-0.8 Zirconium 0-0.8 Silicon 0-0.3 Magnesium remainder

Claims

2. A device as in claim 1 which has the following composition by wt.%:

Neodymium 2.92Cadmium 0.27Calcium 0.24Manganese 0.11Magnesium remainder

3. A device as in claim 1 which has the following composition, by wt.%:

Neodymium 2.46Cadmium 0.12Aluminum 0.09Manganese 0.14Silicon 0.01Magnesium remainder

4. A device as in claim 1 which has the following compositions, wt.%:

Yttrium 1.6Cadmium 0.25Calcium 0.06Silver 0.3Manganese 0.08Magnesium remainder

5. A device as in claim 1 which has the following composition, wt.%:

Neodymium 1.8Cadmium 0.09Calcium 0.08Manganese 0.13Zirconium 0.49Magnesium remainder