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Function of the TechnegasPlus Technegas Generator
How does the TechnegasPlus Technegas Generator work?
The Cyclomedica TechnegasPlus Technegas Generator is an electro-mechanical device weighing approximately 100 kilograms, mounted on a trolley. The TechnegasPlus Generator is fully self contained in terms of its own operation and radiation shielding and the various steps of Technegas production are under the automated control of a microprocessor with front panel display prompts and simple push button operation.
The TechnegasPlus Generator is essentially a miniature high temperature furnace operated from mains voltage. It uses a combination of graphite and an Argon atmosphere to reduce and then vaporise Technetium Generator eluant (sodium pertechnetate) in a chamber. It does this by first drying the eluant to remove the water from the saline carrier solution, then raising the graphite Pulmotec Crucible to an ideal temperature of 2750
An inbuilt optical sensor detects the light given off by the hot Pulmotec Crucible enabling the Pulmotec Crucible temperature to be kept within specified limits during the heating cycles. The burn process releases in excess of 60% of the Technetium into the vapour phase. A manually operated exit port, the Patient Valve in the chamber enables the patient to inhale the suspended Technegas, which by depositing on the surfaces of the alveoli of the lung enables the functioning airways distribution to be mapped by the standard nuclear medicine technology, namely a gamma camera.
