Engineering Developments in Cryonics
Testing of several engineering developments is underway, including the Advanced Cryoprotective Perfusion System (ACPS), the patient enclosure, and the Air Transportable Perfusion system (ATP). The ACPS, which will enable computer control of the process of perfusing the body with cryoprotectants during cryopreservation, is being incrementally tested. Control code is in place for system calibration, perfusate flow rate, vascular pressure, temperature, concentration, and mixing reservoir fluid level. The patient enclosure, which will have the ability to cool a patient following surgery, is easily able to reach -110 degrees C. We’re cooling to -100 degrees C while the patient is still in the operating room because it reduces the patient’s exposure to toxic cryoprotectant at high temperatures. The patient will be moved for second-stage cooling down to -196 degrees C at a safer handling temperature.
With some modifications to the gas flow, we are confident that, since the total cooling and insulation appear adequate, we will be able to balance the temperature and hold it.
Equipment has arrived to calibrate the ATP and replace the temporary back plate that was on display at the conference. The redesigned ATP system will significantly reduce the weight and cost of the ATP, while significantly improving its safety and ease of use.
By combining these improved pieces of equipment with an established protocol for testing the equipment and training cryonics technicians in its use, Alcor will be in a position to conduct professional training sessions in both stabilization protocols and cryoprotection at its facility in Scottsdale. A professional training system has the potential to attract new cryonics technicians, thereby greatly expanding the range of personnel available across the world for these critical, “first-responder” roles.