Wednesday, December 7, 2011

BioTester Demo

Here is a demo of the BioTester before it gets sent out to a customer. The BioTester is the best Biomedical Equipment Tester on the planet and we say that with 20 years of experience in the Biomedical field. Most ECG simulators are either very basic at around $500 with no screen, or come with a screen and cost $1500. The BioTester is priced midway but closer to the $500 units. It has the same or better features as the more expensive units. As for China, the cheapest simulator from there is currently $900 but is very bulky. Features of the BioTester are:

  • Auto Power Off - 4 minutes default
  • User ID screen (in case unit is lost)
  • Backlight - set to 10seconds to conserve battery life
  • Full 10 lead Full function ECG simulator
  • Respiration simulator from 0.1 to 10.0 Ohms
  • Stimulator Tester - this is unique to the BioTester

Thursday, September 15, 2011


Here is an old project which was rediscovered in an old drawer recently - the Medifib. Only two units were ever made and one was sold to a Sydney hospital. The Medifib is designed to give out a 15V square wave at 50Hz and 20mA maximum so that it may be connected to a heart during heart surgery and make it go into fibrillation. During heart surgery, drugs make the heart stop beating so the operation may be carried out, and when the operation is finished, other drugs are injected to let the heart start beating again. If there are any small leaks, the Medifib can then be used to make the heart quiver at 50Hz and allow the surgeon to do the final fixups.

Sunday, June 12, 2011

TEK321 Electronic Heater Controller

This is a Carrier TEK 321 Electronic Heater Controller which was just fixed at SRI. The ignition circuit had stopped working.