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:
Jan. 15, 2002
Filed:
Feb. 25, 2000
Chengdu Shuyang Pharmaceutical Factory, Chengdu, CN;
Abstract
A process of preparing a double-sterilized immunoglobulin product for intravenous injection includes dissolving Cohn's component II in distilled ice water, and adjusting to the desired pH using acetic acid. A filter is used to remove alcohol and salt and establish a desired sodium ion concentration, and the immunoglobulin concentration is adjusted to form interim product, which is bottled. The bottle is filled with gaseous carbon dioxide to achieve a pressure of 0.7 to 200 kPa, sealed in the absence of any protectant, and sterilized. The interim product is filtered, concentrated to achieve an immunoglobulin concentration of 5% to 10%, adjusted to a desired pH, filtered to remove bacteria, and stored at room temperature for 21 days. Glucose is added in order to change the osmotic pressure equilibrium of said interim product to form final product.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile