MICS-Band RF Miniaturized Standard Implant Module (MiniSIM)
The ZL70323 implantable radio module is a high-performance, easy-to-use RF module based on the ZL70103 MICS-band transceiver IC. The module is small and is designed to provide good performance while consuming very little power. The ZL70323 RF module integrates all the circuitry and functionality required to deploy a complete radio solution for implantable applications. This allows the circuit complexity to be reduced to placing one single package on your implantable application board.
RF telemetry systems used in implantable medical devices utilizing the MICS band include:
- Implantable cardioverter defibrillators (ICDs)
- Cardiac implantable loop recorders
- Sensors and diagnostic devices
- Drug pumps
- Physiologic monitors
- Short-range body area network applications using the 433-MHz ISM band
- Complete ZL70103-Based MICS-Band RF Telemetry Radio Solution
- Implantable Radio Module Designed to Enable Simple Development of Implantable Medical Devices
- Implant-Grade Quality Assurance
- Ultracompact Design and Small Size (4.5 mm × 5.5 mm × 1.6 mm) Suitable for Implants
- RX Sensitivity of −102 dBm at 200 kbit/s (with packet error rate of 10%)
- Additional Lower Data Rates Available (40 / 18.18 kbit/s)
- Designed to Meet Regulatory Requirements (FDA, FCC, ETSI, and IEC)
The ZL70323 is fully supported by the ZLE70103BADA MICS-band RF transceiver Application Development Kit.
ZL70323 Block Diagram
Docs & Specs
Go to myCMPG and log in for access to privileged information. Once logged in, click on Medical Wireless. Then under My Privileged Services, click on ZL7010X or on ZL7010X Source Code, as appropriate.
ZL70103-Based Implant Module and MICS-Band RF Base Station Module
In order for our customers to bring their products to market faster, Microsemi offers two RF modules incorporating a MICS-band RF transceiver IC (integrated circuit).
The ZL70323 implantable radio module is a second-generation, high-performance, easy-to-use RF module based on the ZL70103 MICS-band RF transceiver IC. The module is extremely small and is designed to provide good performance while consuming very little power. The ZL70323 RF module integrates all the circuitry and functionality required to deploy a complete radio solution for implantable applications. This allows the circuit complexity to be reduced to placing one single package on your implantable application board.
The ZL70120 MICS-Band RF Base Station Module (BSM) is a complete, high-performance, easy-to-use RF module that is based on the ZL70102 MICS-band RF transceiver IC. The RF link of the ZL70120 BSM is compatible with the ZL70323 Miniaturized Standard Implant Module. The ZL70120 RF base station module integrates additional circuitry and functionality required to deploy a complete radio solution for external applications. This reduces the complexity of implementing a MICS-band base station to placing one single package on an application board.
Implantable Communications Systems
Microsemi’s ZL70103 MICS-band RF transceiver IC allows medical device manufacturers to more easily design wireless communication systems supporting advanced applications, including home-based patient remote monitoring and operating room device programming.
The ZL70103 IC operates in the 402-MHz – 405-MHz MICS band to enable wireless links connecting implanted medical devices and control equipment. Previous implanted device communication systems relied on inductive links. These systems have a limited operating range and low data rates, and are not user-friendly for home monitoring applications, as they require the patient to accurately position an inductive wand over the implanted device.
In comparison, the ZL70103’s higher data rate and longer operating range allow medical device manufacturers to enable new value-added services to improve patient care. By supporting higher data rates, patient events can be captured in the implanted device’s memory and quickly uploaded to a base station for analysis to shorten doctor/ patient consultancy times. In surgical situations, longer operating range allows the base station (and the programmer) to be located outside the sterile environment.
Longer operating ranges also simplify remote-monitoring applications. As illustrated, an ultra-low-power RF transceiver in a pacemaker can wirelessly transmit patient event and device performance data to a base station in the home. Data is then forwarded over the telephone or internet to a physician’s office. If a problem is detected, the patient goes to the hospital where the high-speed, two-way RF link is used to monitor and adjust device performance under a doctor’s supervision.
Battery life is a critical performance parameter for implanted devices. The ZL70103 transceiver incorporates a “wake-up” receiver that allows the IC to operate in an extremely low current. The ZL70103 consumes less than 6 mA when transmitting or receiving and consumes only 290 nA when in a periodic sleep/sniff mode (1-second sniff interval).
Communication between implanted and base station transceivers is initiated using a specially coded wake-up signal from the 2.45-GHz base transmitter. Alternative wake-up mechanisms using 400-MHz or direct wake-up by the implanted medical device are also supported.