Activation control method for a battery-powered medical apparatus

An activation control method for a battery-powered medical apparatus including a processor configured to control power supply from a battery and switch a program that is executed by the processor, the method comprising:

• first executing, by the processor, activation by a first program stored in a first memory in response to receiving an activation instruction;
• in response to the activation of the battery-powered medical apparatus failing to complete within a first predetermined period of time from start of executing activation by the first program, switching, by the processor, a program from the first program to the second program stored in a second memory, and execute the activation of the battery-powered medical apparatus by executing the second program;
• and
• transmitting, by the processor, a signal to the battery to control the power supply from the battery so that the power supply from the battery to the battery-powered medical apparatus is stopped in response to the activation by the second program failing to complete within a second predetermined period of time after executing the activation by the second program, such that the battery-powered medical apparatus does not receive power supply from the battery upon the second program failing to complete within the second predetermined period of time.

A battery-powered medical apparatus comprising:

• a first memory configured to store a first program that controls normal operation of the battery-powered medical apparatus;
• a second memory configured to store a second program, which is different than the first program, the second program controlling a limited operation compared to the first program that reduces functionality of the battery-powered medical apparatus;
• and
• a processor configured to:
• receive an activation instruction controlling the processor to perform activation of the battery-powered medical apparatus;
• activate the battery-powered medical apparatus by executing the first program stored in the first memory in response to receiving the activation instruction;
• upon elapse of a first predetermined period of time, which starts when the first program is executed, determine whether the activation of the battery-powered medical apparatus is complete;
• in response to the activation of the battery-powered medical apparatus failing to complete within the first predetermined period of time, switch activation from the first program to the second program, and activate the battery-powered medical apparatus by executing the second program stored in the second memory;
• upon elapse of a second predetermined period of time, which starts when the second program is executed, determine whether the activation of the battery-powered medical apparatus is complete;
• in response to the battery-powered medical apparatus being activated within the second predetermined period of time, perform an update of the first program by rewriting at least a portion of the first program based on updated code stored in the second memory;
• and
• in response to the activation of the battery-powered medical apparatus failing to complete within the second predetermined period of time, stop performing the activation of the battery-powered medical apparatus, and transmit a signal to the battery to control power supply from a battery to stop the power supply to the battery-powered medical apparatus, such that the battery-powered medical apparatus does not receive power supply from the battery upon the second program failing to complete within the second predetermined period of time.