Stem cell exosome microneedle patch and method for repairing damaged annulus fibrosus

The invention discloses a stem cell exosome microneedle patch and a method for repairing damaged annulus fibrosus, and relates to the technical field of medical instruments.The stem cell exosome microneedle patch comprises a cloth patch and at least one microneedle matrix body, and the at least one microneedle matrix body is arranged on the front face of the cloth patch; a micro-needle matrix formed by arranging a plurality of micro-needles is arranged on the front surface of the micro-needle matrix body, and micro-needle holes are formed in needle tips of the micro-needles; a pressurizing screw structure is arranged on the back surface of the microneedle matrix body, an exosome storage chamber is arranged between the pressurizing screw structure and the microneedle matrix body, and the exosome storage chamber is filled with stem cell exosomes; the pressurizing screw structure is used for applying a target pressure value to the exosome storage chamber, so that the stem cell exosome in the exosome storage cham