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.:
Date of Patent:
Jul. 20, 2021
Filed:
Aug. 14, 2019
Applicant:
Covidien Lp, Mansfield, MA (US);
Inventors:
Assignee:
Covidien LP, Mansfield, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 9/16 (2006.01); A61K 31/714 (2006.01); A61K 31/445 (2006.01); A61K 33/24 (2019.01); B01J 13/12 (2006.01); A61L 15/28 (2006.01); A61L 27/20 (2006.01);
U.S. Cl.
CPC ...
A61K 9/1682 (2013.01); A61K 9/1652 (2013.01); A61K 9/1694 (2013.01); A61K 31/445 (2013.01); A61K 31/714 (2013.01); A61K 33/24 (2013.01); A61L 15/28 (2013.01); A61L 27/20 (2013.01); B01J 13/12 (2013.01); B01J 13/125 (2013.01);
Abstract
A process for forming microspheres is disclosed. The process includes contacting a solvent with a modified cellulose to form a solution; contacting the modified cellulose solution with at least one bioactive agent to form a discontinuous phase liquid; contacting the discontinuous phase liquid with a continuous phase liquid to form an emulsion; and contacting the emulsion with a third phase liquid to extract the solvent from the emulsion, thereby forming a plurality of modified cellulose microspheres.