| abstract |
The present invention relates to an apparatus for delivering a drug to a body, and more particularly, to a micro needle and a micro needle patch comprising the biodegradable metal. The microneedles are represented by Chemical Formula 1, and they are inserted into the subcutaneous or epithelium, and then absorbed and decomposed to release metal ions and decomposition products into the body. A, b and c in the formula (1) are the weight percentages of the respective components, and a or b in the range of a + b + c = 100 wt%, 0 a 100, 0 b 100, 0 c 10 And X is at least one selected from the group consisting of Ca, Fe, Mn, Si, Na, Zr, Ce and P The microneedles to which the biodegradable metal of the present invention is applied can realize sufficient strength to penetrate through the skin due to the mechanical properties peculiar to the metal. After the medicines are inserted into the subcutaneous tissues, they are used not only for their own minerals, And the gas is supplied to the skin, the skin can be swelled to improve the wrinkles. Therefore, in addition to drug delivery for treatment, prevention of diseases through vaccine delivery and drug delivery for skin beauty can be utilized. |