The A3051 Blood Pressure Monitor (BPM) is an implantable telemetry sensor currently in development at OSI. Prototype devices are undergoing trials at collaborating institutions. The A3051D2HT shown above provides 256 SPS pressure measurement in the range 2.6-406 kPa as well as 64 SPS temperature in the range 0-50 °C. To prepare the BPM for implantation, we slide one end of a catheter into the silicone coupling tube shown in the photograph. We fill the catheter with heparin solution using an even thinner catheter that we push all the way down the main catheter to the pressure sensor flange. We fill the main catheter as we withdraw the backfilling catheter. When we have filled the main catheter to within 5 mm of the tip, we stop filling and instead inject a 2-mm layer of a particular barrier oil we supply with the BPM. We continue to fill the final 3 mm of the catheter with heparin. We cut the tip of the catheter at 45°. The pointed tip of the catheter is now ready for insertion into the target artery. For more information and updates on development, see our A3051 Manual.
The A3053 Embedded Ethernet Module (EEM) is an embedded microcontroller with Ethernet physical interface, TCP/IP stack and forty general-purpose inputs-outputs (GPIOs) routed to the contacts of an mPCIe board edge connector. The A3053 mounts directly into an mPCIe socket on an instrument motherboard so as to provide the motherboard with a network interface. The A3053's GPIOs are provided by its thirty-two bit, 200-MHz PIC32MZ2048EFH100 microcontroller. All the GPIOs are programmable, with many of them supporting analog input and pulse-width modulated output. They can be configured to provide interfaces such as a sixteen-bit data and address bus with 50-ns access time or serial buses running at 20-Mbps. The mother board hosts a magnetic RJ-45 socket and a few resistors and capacitors to provide the cable connection to the local area network. Programming the A3053 takes place through a connetor on the mother board. A three-wire UART interface on the A3053 printed circuit board provides direct communicatiopn with the A3053's microcontroller during development and debugging. Our P3053 repository of software acts as a complete and accurate guide to the operation of the A3053, and itself provides both a Telnet command-line interface and a production-ready eight-bit binary motherboard interface. We designed the A3053 as a replacement for the discontinued RCM6700 module we had been using on our motherboards. Starting in 2026, we will be using the A3053 to replace the RCM6700 in all our data acquisition circuits. We are currently setting up a Crowd Supply campaign to offer the A3053 Embedded Ethernet Module for sale through Mouser Electroncs, along with a demonstration board to help with adoption of the module. If this campaign is successful, we hope to be offering the A3053 for sale in September 2026. For more information and updates on development, see our A3053 Manual.
The A3052 Analog Signal Generator (ASG) is a Power-over-Ethernet (PoE), two-channel, programmable signal generator. The proposed A3052A provides sinusoidal output from 1 mHz to 5 MHz with dynamic range of ±10 V into a high-impedance load and ±5 V into a 50-Ω load. We connect the generator to our local area network (LAN) with a PoE switch. It provides a TCP/IP interface identical to that of our LWDAQ Servers. It listens at its own IP address and port, waiting for a client connection. The function generator contains two signal sources, each of with its own 8-KByte waveform memory, 13-bit waveform length, 32-bit clock divisor, 8-bit digital-to-analog converter, variable low-pass filter, variable attenuator, power amplifier, and 50-Ω output. For more information and updates on development, see our A3052 Manual. We expect the A3052A to be available for sale in November 2026.