Patent ID: 11787113

Abstract:
The present disclosure relates to a bio printer to which a biomaterial freeze-hardening method is applied and a freeze-hardening method thereof. The bio printer may include: a plurality of dispensers configured to discharge a biomaterial inside a printing chamber; a printing plate module disposed below the dispensers so that the discharged biomaterial is placed thereon; a cooling module including one or more Peltier elements configured to cool the printing plate module, and a water block provided at a heating surface side of the Peltier elements and having a coolant flow path formed therein to circulate a coolant to dissipate heat generated from the Peltier elements; a coolant providing module configured to provide the coolant to the cooling module; a temperature sensor provided in the cooling module to calculate a temperature of a printing surface of the printing plate module; a printing controller configured to control the operation of the dispensers to print an output; and an output hardening controller configured to, upon completion of printing of the output by the printing controller, receive a detected value from the temperature sensor and control the cooling module and the coolant providing module to freeze-harden the output.