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:
May. 09, 2023
Filed:
Jan. 11, 2022
Win Coat Corporation, Hsinchu, TW;
Ta-Jo Liu, Hsinchu, TW;
Wan-Hua Li, Hsinchu, TW;
Han-Yin Cheng, Hsinchu, TW;
Yi-Jyun Liao, Hsinchu, TW;
Wen-Hsu Lien, Hsinchu, TW;
Shin-Yi Yin, Hsinchu, TW;
Ying-Hua Hsu, Hsinchu, TW;
Hsiu-Feng Yeh, Hsinchu, TW;
Win Coat Corporation, Hsinchu, TW;
Abstract
Provided is a microneedle patch comprising a substrate part and multiple needle parts protruding from the substrate part. The substrate part consists of a diffusion-proof layer and a base, and each needle part consists of a needle tip, a diffusion-proof layer and a base. The diffusion-proof layer of each needle part is formed between the needle tip and the base of the corresponding needle part. The diffusion-proof layer of the substrate part and the diffusion-proof layer of needle part are one-piece structures, and so are the base of the substrate part and the base of the needle part. The diffusion-proof layer of the microneedle patch can prevent the active ingredients from diffusing to the base, limit the active ingredients to the needle tip and control the carrying quantity thereof.