Intracardiac energy harvesting device and implantable electronic medical device

An intracardiac energy harvesting device, comprising:

• a shell;
• a fixing mechanism arranged on the shell, wherein the fixing mechanism is configured to fix the shell to an interior of a heart chamber to enable the shell to move along with beating of heart;
• a nanogenerator module packaged in the shell, wherein the nanogenerator module is configured to output electrical energy in response to movement of the shell as the heart beats;
• and
• a power management module packaged in the shell, wherein the power management module is used for managing an electric energy output by the nanogenerator module;
• a first cavity;
• at least one power generation unit disposed in the first cavity;
• and
• at least one first runout body, which is freely movable in the first cavity;
• wherein the first runout body is configured to contact and/or impact the power generation unit in response to runout of the heart, so that the power generation unit outputs an electrical signal;
• the power generation unit is a triboelectric nanogenerator, which comprises:
• a first friction layer and a second friction layer;
• spaces are formed on both sides of the power generation unit, and the spaces on both sides are provided with at least one of the runout bodies;
• when the first runout body moves, the first friction layer is in contact with and separated from the second friction layer.