Drying of Blood Pumps made of Polyurethane in the Vacuum Oven VO

If a heart insufficiency should occur in a patient, there is usually no donor heart available, so artificial hearts step into the breach as lifesavers. In the production of artificial hearts the highest standards of quality apply for all processes. In a renowned German company clockmakers and precision engineers are responsible for the precise finishing, down to the micrometer, of pumps and cannula, which takes place under cleanroom conditions, since the slightest unevenness or deviation could lead to life-threatening complications for the patient.

Memmert vacuum ovens are used for the drying process. For example, the assembled blood pumps are subsequently dried and degassed in the vacuum oven VO. The gentle drying of the components made from heat-sensitive polyurethane is done in a vacuum at 30°C over a period of 24 hours. In doing this, the manufacturer makes use of the advantages of the vacuum cycles in the Memmert vacuum oven. The pressure in the interior is briefly reduced by the programme under controlled circumstances, so that humidity and possible residue is removed more quickly.