Title:
TRANSDERMAL MEDICATION APPARATUS
Document Type and Number:
WIPO Patent Application WO/2008/124979
Kind Code:
A1
Abstract:
A transdermal medication apparatus includes an applying disk (1) applied on
the skin, a drug pad (2) provided in the lower portion of the applying disk (1).
The top portion of the applying disk (1) is a top surface (3). An outer annular cavity
(4) and a central cavity (5) opening downward are provided below the top surface
(3). An annular sidewall is between the outer annular cavity (4) and the central
cavity (5). The outer annular cavity (4) is communicated with a negative pressure
source via a negative pressure source channel outlet (7). The drug pad (2) is provided
in the central cavity (5). The outer annular cavity (4) is divided into an upper
and a lower concaves by an air permeable clapboard (8), the upper concave is communicated
with the negative pressure source via the negative pressure source channel open
(7), and the lower concave opens downward.
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Inventors:
CHEN GANG (CN)
Application Number:
PCT/CN2007/003218
Publication Date:
October 23, 2008
Filing Date:
November 14, 2007
Export Citation:
Assignee:
BEIJING SINOHANFANG PHARMACEUT (CN)
CHEN GANG (CN)
CHEN GANG (CN)
International Classes:
A61M37/00
Foreign References:
CN1130237C | 2003-12-10 | |||
CN2414777Y | 2001-01-17 | |||
US5358467A | 1994-10-25 | |||
GB2336542A | 1999-10-27 | |||
US20030125646A1 | 2003-07-03 |
Attorney, Agent or Firm:
BEIJING HUIZE INTELLECTUAL PROPERTY LAW LLC. (Horizon International TowerNo.6, Zhichun Road,Haidian District, Beijing 8, CN)
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