Power-off detection and protection system of medical electronic device

Abstract

The invention discloses a power-off detection and protection system of a medical electronic device. The power-off detection and protection system comprises a power switch, a medical switching power supply, a standby battery, a first diode, a second diode, a boost circuit, a charging management and electric energy detection circuit, a battery switching circuit, a voltage-stabilizing circuit, and a master control circuit. The system is powered by an external power supply and the standby battery. When the external commercial power is not supplied, the standby battery is automatically switched on to supply power to the master control circuit in order to guarantee interrupted power supplied to the master control circuit in a switching process and guarantee the normal operation of the master control circuit. A circuit with large power consumption or powered by AC power stops operating when power supply stops and the master control circuit restores the overall operation of the system after the power restores. The power-off detection and protection system may detect power off of the system, may automatically switch the standby battery to the system after being powered off in order to guarantee the normal operation and the display of the master control circuit, and satisfies a power-off protection requirement of the movable large-power medical electronic device requiring long-time continuous operation.

Description

technical field [0001] The invention relates to the technical field of medical electronic equipment, in particular to a power failure detection and protection system for medical electronic equipment. Background technique [0002] At present, in order to ensure that the information of medical electronic equipment is not lost and the normal treatment is not affected after the mains power is cut off, there are two main solutions: one is built-in battery power supply, and the battery guarantees continuous treatment after power failure, which is only suitable for low power consumption. There are few handheld devices; the second is to use UPS backup power supply, which is suitable for fixed equipment. For medical electronic equipment that is mobile, has high power, and needs to run for a long time, especially for therapeutic equipment, the battery cannot support the normal operation of the entire device if the first solution is adopted; the second solution cannot meet the requirem...

AI Technical Summary

Problems solved by technology

For medical electronic equipment that is mobile, has high power, and needs to run for a long time, especially for therapeutic equipment, the battery cannot support the normal operation of the entire device if the first solution is adopted; the second solution cannot meet the requirements. Requirements for mobile and portable equipment

[0003] The existing power-off protection schemes mainly have the following problems: (1) the power is interrupted, the equipment is out of control, and even the patient is injured; (2) after the power is cut off, the system is shut down, and the information is lost; (3) the battery switching cannot achieve 0 Switching time, causing the system to restart and treatment interruption; especially for certain treatments (such as peritoneal dialysis treatment) that cannot continue after interruption and must be restarted

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