Smart patch and method for fabricating the same

A smart patch, comprising:

• a substrate, a detecting component arranged on the substrate, and a reminding component connected with the detecting component, wherein:
• the detecting component is configured to detect a stretch degree of the substrate;
• and
• the reminding component is configured to transmit a reminding signal when the stretch degree of the substrate, detected by the detecting component, meets a preset condition;
• wherein the substrate is further provided with a plurality of micro-needles on a surface thereof for contact with a human body, and each of the plurality of micro-needles comprises at least one shell and one or more medicines surrounded by the at least one shell, wherein:
• one or more layers where the one or more medicines are located are different from at least one layer where the at least one shell is located, and the at least one layer where the at least one shell is located is separate from and does not contain the one or more medicines;
• a material of the at least one shell comprises a nanometer fiber;
• a material of the substrate is same as the material of the at least one shell;
• and the nanometer fiber is degraded when the human body produces lactic acid or pyruvate, or the nanometer fiber is decomposed in an environment inside the human body;
• each of the plurality of micro-needles is configured, when puncturing into skin, to enable at least a part of the at least one shell to be hydrolyzed so that the one or more medicines in the at least one shell contacts with tissue fluid of the human body;
• the smart patch further comprising one of (a), (b), (c), or (d):
• (a) wherein the at least one shell comprises one shell, and the one or more medicines arranged in the one shell of each of the plurality of micro-needles is one medicine;
• (b) wherein the at least one shell comprises one shell, a first medicine of the one or more medicines is arranged in the at least one shell of a part of the plurality of micro-needles, and a second medicine of the one or more medicines is arranged in the at least one shell of a remaining part of the plurality of micro-needles, wherein the first medicine and the second medicine are different medicines;
• (c) wherein the at least one shell comprises two shells which are a first shell and a second shell located inside the first shell, wherein the first medicine of the one or more medicines is arranged between the first shell and the second shell, and the second medicine of the one or more medicines is arranged in the second shell, wherein the first medicine and the second medicine are different medicines;
• or
• (d) wherein the at least one shell comprises three shells, which are a first shell, a second shell located inside the first shell and a third shell located inside the second shell, wherein the first medicine of the one or more medicines is arranged between the first shell and the second shell, a transition chamber is arranged between the second shell and the third shell, and the second medicine of the one or more medicines is arranged in the third shell,
• wherein the first medicine and the second medicine are different medicines.