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 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.