| 摘要 |
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. |
