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:
Apr. 21, 2020
Filed:
Dec. 21, 2018
Shandong Rientech Medical Technology Co., Ltd, Shandong, CN;
Haijun Zhang, Shandong, CN;
Shoutao Lu, Shandong, CN;
Hairong Xu, Shandong, CN;
Liming Liu, Shandong, CN;
Wenrui Cao, Shandong, CN;
Maoquan Li, Shandong, CN;
Chao Zhou, Shandong, CN;
Yuxia Yin, Shandong, CN;
Cuihai Duan, Shandong, CN;
Wenbo Hou, Shandong, CN;
Guang Liu, Shandong, CN;
Shandong Rientech Medical Technology Co., Ltd, Shandong, CN;
Abstract
A method for preparing a degradable drug-loaded microsphere for embolization and a product obtained therefrom, includes the steps of: dissolving a degradable material in an organic solvent, then adding a drug and mixing well to form a suspension or solution; then pouring the drug-containing suspension or solution into an aqueous solution of polyvinyl alcohol, stirring, and thereafter adding water twice for dilution, to prepare the degradable drug-loaded microsphere. The microsphere prepared by the present invention has the advantages of having a controllable particle size, a high drug loading capacity, and a regular spherical shape, being convenient for sieve sizing and accurate particle-size indication, and being accurately targeted to an embolized blood vessel, and the like, and thus has a good application prospect in interventional embolization therapy.