The invention discloses a patch for treating miocardial
infarction, which comprises the following components according to the parts by weight: 5-10 parts of safflower, 3-10 parts of peach kernel and 3-10 parts of trogopterus dung. A method for preparing the patch comprises the following steps: the raw materials are uniformly mixed and ground according to a proportion, and the grain
diameter of each component is between 100 microns and 200 microns; CO2
supercritical fluid extraction is adopted, and a fractionating
tower is used for fractionating and obtaining required fractions; after all components in the formula are processed through nanometer disperse equipment, the components are prepared into a nanometer medicinal
slurry according to the proportion of the formula; required
skin penetration enhancers and pressure-sensitive
adhesive are added; the obtained mixture enters a spiral low-temperature
drying and
coating machine; and after
coating, processes of
cutting, quality inspection, packaging and storage are carried out. A
scientific method is used for
processing and extracting medicinal materials and filling the medicinal materials in a skeleton of a matrix, and the compatibility of the matrix of the patch with
skin is good and beneficial to
drug molecules to pass through, thus the patch has stable medicinal property and the characteristics of quick
percutaneous absorption, good air permeability, gradual
medicine release, and the like. Compared with an oral formulation, the patch has no intestinal tract
first pass effect, is not influenced by the degradation of gastrointestinal tracts and has high
bioavailability, convenient use, accurate dosage and fixed absorption area and the advantages of long-term action,
skin absorption and convenient carrying and use.