Patent ID: 11906464
Assignee: ATONARP INC.
Field: Measurement (Instruments)
Classification: CPC G  F  H | IPC F  G

Claim 2:
3. A control method of a lyophilization system that includes:
a chamber for freeze drying a product;
a vacuum unit for placing the chamber at a negative pressure;
a gas supplying unit for supplying a gas for pressurization purposes to the chamber;
a line for supplying at least a part of exhaust gas from the chamber to a sensor for gas analyzing; and
a system controller,
the control method comprising monitoring, by the system controller, an amount of moisture in the exhaust gas using the sensor and measuring, by the system controller, an end point of freeze-drying process performed in the chamber by a ratio of the amount of moisture to a flow rate of the gas for pressurization purposes to the chamber.