Today, standard memory devices like EEPROM and SRAM have been widely used in medical devices. The use of FRAM will likely change the way the average end user and medical professional complain about hearing aid noise or the need to replace the spare battery in the equipment used. FRAM products help capture more detailed data, improve data reliability, and improve safety and productivity in the medical industry. The following examples will illustrate the benefits of using FRAM.
Use FRAM in a CT scanner without replacing the battery. The purpose of using FRAM inside different devices by different manufacturers is different. One of the purposes is to control the system to determine when it is necessary to maintain the equipment.
The performance of the camera and X-ray generator inside the CT scanner will deteriorate due to repeated use, and these components must be replaced periodically. In these places, FRAM is used as a memory device for the control system to record how many hours the device has been operating and the amount of radiation it has received. The FRAM chip is a non-volatile memory with fast write, high read/write endurance and radiation resistance, making it ideal for this demanding work environment. On the other hand, FRAM is also very suitable for use as a memory for scanning the number of revolutions and tomographic information in CT.
FRAM is used by the patient's side to record or monitor the patient's vital signs - heart rate, pulse, blood pressure, body temperature and so on. These monitors store pre-recorded baseline information for the patient and can be compared to the most recently measured data. If an abnormal situation occurs, the monitor will sound an alarm.
Compared to EEPROM, FRAM can be written more frequently, and the device can make more frequent measurements so that the monitor can record more details. FRAM's fast write capability also means that if there is a sudden power outage, no data is lost, because FRAM can store data in the shortest amount of time before the system's power supply is interrupted.
When FRAM is used in a ventilator (CPAP), there is also no need for a backup battery. Device manufacturers are considering using FRAM for automatic CPAP (continuous positive airway pressure) devices to track sleep apnea. CPAP monitors and records the patient's breathing data during sleep and helps the patient breathe when needed.
Currently, automatic CPAP uses SRAM to store data, but using FRAM does not require the battery needed to hold the data on the SRAM. Some CPAPs use EEPROM to store the initial parameters of the device, but use FRAM to store these parameters and record the data, even the EEPROM is not used.
In the medical field, RFID is also important. At present, the RFID products commonly used in the market are embedded in EEPROM. Compared with RFID products embedded with EEPROM, RFID read and write speeds of embedded FRAM are much faster, and its radiation resistance is more than one order of magnitude higher than EEPROM.
FRAM RFID, which is used in traceability such as operating tables, drug cartridges, tubes similar to punctures, hemodialysis, and the like. There are many places in the United States and Europe that come into contact with medical devices, which require gamma radioactive disinfection. FRAM is highly resistant to radiation. FRAM-based RFID can easily pass standard medical sterilization processes, and EEPROM-based RFID can be corrupted during this process.
FRAM RFID is used for highly reliable electronic data storage such as product information, usage conditions, user parameters, usage records, and more.
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