Kurtz Ersa Magazine


Ersa in reproduction medicine

Away from the customary applications, the Ersa CHIP TOOL desoldering tweezers are now being used successfully in a completely different area – in reproduction medicine.

Kryo vessel
Kryo vessel

Under the name of “heat sealer”, the firm of MTG Medical Technology Vertriebs GmbH sells a Digital 2000 A welding station with CHIP TOOL and specifically adapted desoldering tips. The customers for the company from Bruckberg near Landshut: hospitals and surgeries active in human reproduction medicine. The device is used every day in a number of laboratories.

DIGITAL 2000 A with CHIP TOOL alias “heat sealer”
DIGITAL 2000 A with CHIP TOOL alias “heat sealer”

Amongst other things in this specialist area of medicine, egg cells are taken from patients who have not yet been able to have children. After the subsequent in vitro insemination, cells can also be frozen, so that they can be used in a later cycle, without the patient having to go through the whole stimulation once more.


Ideal access to automated selective soldering

The cells are frozen in small "KryoStraws" – which look like small drinking straws and are manufactured from an elastic plastic material. The straws are filled with medium and the cells, are closed at one end with a steel ball, welded at the other end with the help of the heated tweezers.

Artificial insemination of an egg cell
Artificial insemination of an egg cell

The “heat sealer” can be used for all customary KryoStraws, the welding temperature is controlled electronically and can be seen on the digital display. The heat sealer heats up very quickly and keeps the preset temperature very precisely – as can be expected of an Ersa station. The recommended working temperature is 185 to 190 °C. To weld large-diameter KryoStraws, the Ersa range also contains particularly broad blades.


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