ALLPCB
Bluetooth technology in medical instruments
Bluetooth technology features fast frequency hopping, short data packets, low power consumption, stability, strong anti-interference capability, and low radiation. It is widely used in wireless medical monitoring, particularly in handheld, portable, and benchtop diagnostic and therapeutic instruments. Examples include ECG monitors and ECG Holter devices, blood pressure Holters, blood glucose Holters, gastrointestinal pH Holters, electronic pills, wireless control of implanted devices, and miniature gastrointestinal biochemical monitoring systems.
ZigBee in medical applications
ZigBee is a short-range, low-data-rate, low-cost, and low-power wireless network technology. It uses direct-sequence spread spectrum (DSSS) and operates at 868 MHz, 915 MHz, or 2.4 GHz, all of which are license-exempt bands. Its prominent features are simplicity, low power consumption, networking capability, high reliability, and low cost. In medical monitoring, physiological parameters collected by sensors are transmitted via ZigBee-based wireless sensor networks to a monitoring center, where the data are processed and clinicians use them for diagnostic assessment.
Wireless LAN (IEEE 802.11) in medical devices
The IEEE 802.11 protocol defines primarily the MAC sublayer of the data link layer and aspects of the physical layer in the OSI model. It is commonly applied in wireless local area network systems and can be used to design wireless ward monitoring systems, wireless call systems, and 24-hour wireless ECG monitoring systems.
4. RFID in healthcare
RFID, short for radio frequency identification, is an automatic identification technology that emerged in the 1990s. It uses radio signals to achieve contactless information transfer through spatial coupling and enables identification based on the transmitted information. RFID systems are used in devices for diabetes treatment, wholesale management of medical devices, and tracking of medical equipment.
LTE and cellular data services in medical applications
With the development of healthcare services, telemedicine has increasingly become a focus. Many scenarios require transmitting various physiological parameters collected in the field to a hospital or central station, such as sending patient data from an ambulance to a hospital or community-based monitoring of outpatients. This technology enables remote transmission of ECG, body temperature, blood pressure, and other physiological signals. 3G and 4G, due to their higher data rates, better support real-time transmission and facilitate the development of telemedicine.
