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Design and Test Solutions for Medical IoT Devices

Brochures

Keysight – the world’s leading electronic measurement company, and its Ixia product line–provides complete end-to-end solutions for designing, testing and securing medical IoT devices and network infrastructures to meet the robust demands of healthcare facilities. Keysight and Ixia solutions span the entire communication stack, from Layers 1 to 7, and cover the entire product lifecycle, from design creation to manufacturing and beyond.

Medical IoT Device Design and Test

Electronic Components Design and Characterization

Signal and Power Integrity Testing

Power Consumption for Battery-Operated Medical Devices

Wireless Communications Test

RF/Wireless Components Design and Characterization

EMI/EMC Testing

Wireless Conformance Solution

Wireless Technology Design and Test

Wireless Connectivity Testing

Co-Existence and Interference Testing

Network Readiness Testing

Network and System Test

Network Performance Assessment and Monitoring

Network Infrastructure Performance Testing

Applications and Security Testing

Overview

The number of connected medical IoT devices is on the rise, and includes a wide range of products from simple devices like thermometers to more complex devices like smart infusion pumps, patient monitoring systems, and MRI scanners. Communities’ expectations have increased in line with the promised advantages such as better access to patients’ electronic health records, and improved quality of care through wireless-enabled, real-time monitoring systems.

While the advantages of “everything connected” are undeniable, a healthcare facility densely packed with medical IoT devices can lead to problems such as dropped network connections and failure in the transmission of critical alarms. As far as medical IoT devices are concerned, such incidents are non-negotiable. A medical IoT device needs to work right, unimpeded by interference and at all times.

Solution 1: Keysight 34465A / 34470A Truevolt Digital Multimeter

Benefits:

Gain greater measurement insight quickly with the DMM’s low current resolution and high accuracy, and speed up development and time-to-market.

-Speed up statistical analysis via histogram, bar and trend charts on a color graphical display

-Test low power devices with 1 μA range and pA resolution

-Patented Truevolt technology provides greater accuracy down to 16 ppm, lower noise and lower measurement error

-With BenchVue software enabled, you can quickly build automated tests and log measurements to PC, saving precious test and development time

Solution 1: Keysight 34465A / 34470A Truevolt Digital Multimeter

Obtaining accurate load current measurements for an implantable medical device can be quite a challenge. Devices such as pacemakers draw very low currents when in sleep or standby mode (as low as microamps), but consume much higher currents during active mode. The 34465A / 34470A Truevolt DMM can capture accurate current profiles for the medical IoT device that’s tested under each mode: sleep, standby, and operating modes.

Solution 2: Keysight 33500 / 33600 Series Function/Arbitrary Waveform Generators

The arbitrary waveform generation feature in the Keysight 33500B and 33600A Series Waveform Generators allows users to generate complex electrocardiogram (ECG) patterns for medical device design and characterization. The waveform generator’s sequencing feature enables seamless switching across various ECG signals that are stored in memory, so you can easily simulate abnormalities in heart activities without any discontinuity in test.

Solution 3: Keysight 81150A / 81160A Pulse Generator + Oscilloscope

Keysight 81150A / 81160A Pulse Function Arbitrary Noise Generators can simulate distorted sensor signals in fitness wearable devices. These instruments can generate high-precision and repeatable simulations of any kind of clean signals overlaid with distortion. This way, you can generate motion artifacts in the Hz-range and acoustic signals corrupted by ambient acoustic noise. Overshoot and other voltage level effects that occur during wake-up from sleep mode can also be created. Oscilloscopes with real-time bandwidth and high measurement accuracy complement the test setup for these wearable devices; helping you quickly monitor and debug any design issues in the medical IoT device.

Solution 4: Keysight B2961A / B2962A Low-Noise Power Source for Precision Voltage and Current Sourcing

To reduce power consumption, battery-powered medical devices continue to reduce their supply voltage levels, which requires ever more precise power sources to accurately characterize device behavior. Noise performance requirements also continue to become more stringent, making the testing of medical IoT devices increasingly difficult. The Keysight B2961A and B2962A are revolutionary power supplies or power sources with precision low noise voltage/current sourcing.

Signal and Power Integrity Testing

Scenario: With increased demand for expanded functionalities in a small medical IoT device, there is a need for higher density, higher speed, lower power and more compact circuit design. Signal integrity and power integrity issues are becoming more common as traces become closer to each other and supply voltage is lowered.

Testing for signal and power integrity is essential to create a successful, reliable medical IoT device. To ensure the performance of a medical IoT device does not degrade, developers need to characterize and troubleshoot these issues at an early stage of the design cycle to avoid any timeline slip and costly failure at later stages.

Solution 1: Keysight E5071C ENA Vector Network Analyzer with Option TDR

The Keysight E5071C ENA Vector Network Analyzer with Option TDR is a one-box solution for analyzing high-speed serial interconnects. It performs real time signal integrity measurements simultaneously in the time domain (TDR/TDT) and frequency domain (S-parameters), as well as eye diagram tests without requiring an external bit pattern generator.

Solution 2: Keysight Infiniium S-Series Oscilloscope + N7020A Power Rail Probe

The Keysight low-noise Infiniium S-Series Oscilloscope is used with a specialized power rail probe (N7020A) to perform highly accurate power integrity (PI) analysis. The solution measures periodic and random disturbances (PARD), static and dynamic load response, programmable power rail response, and similar power integrity (PI) measurements.

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