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:
Feb. 05, 2019
Filed:
Jul. 22, 2014
Applicant:
Tuo Jin, Shanghai, CN;
Inventor:
Tuo Jin, Shanghai, CN;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61M 37/00 (2006.01); B29C 65/00 (2006.01); B29C 69/00 (2006.01); B29C 39/02 (2006.01); B29C 39/42 (2006.01); A61K 9/00 (2006.01); B29K 29/00 (2006.01); B29K 105/00 (2006.01); B29L 31/00 (2006.01);
U.S. Cl.
CPC ...
A61M 37/0015 (2013.01); A61K 9/0021 (2013.01); B29C 39/026 (2013.01); B29C 39/42 (2013.01); B29C 65/002 (2013.01); B29C 69/00 (2013.01); A61M 2037/0023 (2013.01); A61M 2037/0046 (2013.01); A61M 2037/0053 (2013.01); B29K 2029/04 (2013.01); B29K 2105/0035 (2013.01); B29K 2105/0073 (2013.01); B29K 2827/18 (2013.01); B29L 2031/753 (2013.01);
Abstract
The application discloses a method to fabricate microneedle patches, comprising a) casting (painting and pasting) an aqueous polymer solution on a mold of array of micro-holes which is made of porous materials; b) sucking the polymer solution into the micro-holes by applying vacuum at the back of the mold; d) freezing and thawing the casted polymer solution to induce gelation; and e) drying the gelled polymer solution. Specifically, the present invention describes a process and composition of polymeric microneedlepatch which overcomes the limitations of existing microneedles systems and may be used for transdermal delivery system for therapeutics and other applications.