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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11318229 B1

PDFFull Text
Date of Patent:
May. 03, 2022

Filed:

Aug. 17, 2017

Method for producing an implant using a calcium carbonate-containing composite powder comprising microstructured particles

Applicant:

Karl Leibinger Medizintechnik Gmbh & Co. KG, Mühlheim, DE;

Inventors:

Frank Reinauer, Mühlheim, DE;

Siegmund Luger, Mühlheim, DE;

Marijan Vucak, Mühlheim, DE;

Assignee:

Karl Leibinger Medizintechnik GmbH & Co. KG, Mühlheim, DE;

Attorney:

Banner & Witcoff, Ltd.

Primary Examiner:

Nahida Sultana

Int. Cl.
CPC ...
B33Y 10/00 (2015.01); B33Y 70/00 (2020.01); B33Y 80/00 (2015.01); B29C 64/153 (2017.01); A61L 27/44 (2006.01); C01F 11/18 (2006.01); A61L 27/56 (2006.01); A61L 27/58 (2006.01); C08J 3/12 (2006.01); C08J 3/20 (2006.01); C09C 1/02 (2006.01); C09C 1/00 (2006.01); A61L 27/02 (2006.01); A61L 27/18 (2006.01); C08K 3/26 (2006.01); C08K 7/18 (2006.01); B29K 67/00 (2006.01); B29L 31/00 (2006.01);
U.S. Cl.
CPC ...
A61L 27/446 (2013.01); A61L 27/025 (2013.01); A61L 27/18 (2013.01); A61L 27/56 (2013.01); A61L 27/58 (2013.01); B29C 64/153 (2017.08); B33Y 10/00 (2014.12); B33Y 70/00 (2014.12); B33Y 80/00 (2014.12); C01F 11/183 (2013.01); C08J 3/124 (2013.01); C08J 3/203 (2013.01); C08K 3/26 (2013.01); C08K 7/18 (2013.01); C09C 1/0081 (2013.01); C09C 1/021 (2013.01); B29K 2067/046 (2013.01); B29K 2995/006 (2013.01); B29L 2031/7532 (2013.01); C01P 2004/32 (2013.01); C01P 2004/51 (2013.01); C01P 2004/61 (2013.01); C01P 2004/62 (2013.01); C08J 2367/04 (2013.01); C08K 2003/265 (2013.01); C08K 2201/003 (2013.01); C08K 2201/005 (2013.01);
Abstract

The invention relates to a method for producing an implant which contains a composite powder comprising microstructured particles, obtainable by a method in which large polymer particles are bonded to small spherical calcium carbonate particles. Said calcium carbonate particles can be obtained by a method with the following steps: a) providing a calcium hydroxide suspension, b) introducing carbon dioxide or a carbon dioxide-containing gas mixture into the suspension from step a), and c) separating the calcium carbonate particles formed, while adding 0.3 wt.-% to 0.7 wt.-% of at least one amino trialkylene phosphonic acid.

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