Title:
PIEZOELECTRET DRUG DELIVERY PATCH IN COMBINATION WITH TRANSDERMAL DRUG DELIVERY BY MEANS OF PRESSING OR PATTING, AND PREPARATION METHOD THEREFOR AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/024338
Kind Code:
A1
Abstract:
A piezoelectret (4) drug delivery patch in combination with transdermal drug delivery by means of pressing or patting, and a preparation method therefor and an application thereof. The piezoelectret (4) drug delivery patch comprises a covering layer (1), a piezoelectret layer, and a drug layer (2), which are sequentially arranged in a stacked manner, wherein the piezoelectret layer comprises a piezoelectret (4), and a metal electrode (3), which is combined with the piezoelectret (4). By means of pressing or patting, the piezoelectret (4) drug delivery patch generates a micro-current pulse, such that the fluidity of skin lipoids is improved, and drug molecules enter channels which penetrate the stratum corneum of skin to expand, thereby significantly improving the transdermal permeation efficiency of a drug.
Inventors:
FANG PENG (CN)
CAO JIANGLANG (CN)
LI GUANGLIN (CN)
CAO JIANGLANG (CN)
LI GUANGLIN (CN)
Application Number:
PCT/CN2021/137768
Publication Date:
March 02, 2023
Filing Date:
December 14, 2021
Export Citation:
Assignee:
SHENZHEN INST OF ADV TECH CAS (CN)
International Classes:
A61M37/00
Foreign References:
| CN113577528A | 2021-11-02 | |||
| CN106074460A | 2016-11-09 | |||
| CN112646213A | 2021-04-13 | |||
| CN213748845U | 2021-07-20 | |||
| CN111991259A | 2020-11-27 | |||
| CN109718465A | 2019-05-07 | |||
| CN105816952A | 2016-08-03 | |||
| US4871352A | 1989-10-03 |
Attorney, Agent or Firm:
BEIJING ZHONG XUN TONG DA INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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