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We present an Ernst UNGER (1875-1938) blood collector,, as it was in usen our clinics from 1930 to 1950.
The equipment comes from the lumber room of the building of the Luxembourg Red Cross, opened in 1936, now "Maternité Charlotte" in Luxembourg ...
Was this blood subsequently infused into a patient? This is supported by the transfusion technique given by Prof. DENECKE in 1936: "500 ml of blood is taken from the donor, collected sterile and defibrinated by hitting it with the sterile glass rod during the removal, the blood is then sifted through sterile gauze and destroyed 5 hours in a refrigerator, transferring with glass irrigator with rubber tube and glass attachment, cannula with tube piece The irrigator is filled to one quarter with physical NaCl or grape solution The cannula is inserted into the vein of the recipient and The disconnected piece of tubing is then connected to the glass batch, allowing some NaCl solution to flow into the vein alone and add the blood.
Lit.
- H. Kramer (interior department of the city hospital Osnabrueck, Germany), experience with the phlebotomy device Hirudo, in: Journal of Molecular Medicine, Springer Berlin / Heidelberg Volume 13, Number 8 / February, the 1934th
"THERAPEUTIC NOTE: EXPERIENCES WITH THE ADMINISTRATIVE DEVICE HIRUDO By Dr. H. KRAMER From the Department of Internal Affairs of the City Hospital Osnabrück (Director: Prof. Dr. BOGENDORFER) and company Kirchner & Wilhelm has been one of Dr. UNGER The principle of the apparatus is that a venous puncture needle with the help of a pressure hose, a graduated glass container can be connected, which can be evacuated by means of a connected suction pump, similar to the Potain puncture apparatus Without the need to actuate a lever, while on the one hand the liquid to be dotted flows into the glass container, air is sucked out of the container through a second opening by means of the pump and so a certain negative pressure is constantly maintained a protective metal shell enclosed by a piece of glass in the closed leading tube can monitor the flow of liquid and read through a slot in the metal shell, the amount of drained puncture fluid. The apparatus was used for venipunctures and pleural functions. It was pleasant to feel that the fluid flowed out in a continuous stream and that the amount of fluid gained was invisible to the patient. Especially this Eigensehaft the invisible puncture fluid is in blood letting, etc. of particular advantage in sensitive patients. Another advantage is that a bleeding can be done without any soiling of the laundry, documents, etc. In one of our outpatient bloodlettings, it was very easy for a person to undergo surgery if the cuff of the blood pressure apparatus was put on for stowage. Precisely because of this, the blood-letting device is in our opinion especially suitable for the practitioner, who is not always supported by sufficient helpers. The cleaning of the apparatus is done by sucking cold water, afterwards the whole apparatus except the lockable pump can boil off. From various quarters is stated as unpleasant and disadvantageous that after the puncture at the first pump stroke in the system, a certain overpressure would arise, which could possibly cause a leakage of air into the vein. We have through investigations and also by asking questions with the manufacturer and Dr. Ing. Convince UNGER that there is never any danger. Once the cannula has been connected to the apparatus under water, it will never be possible to force an air bubble out of the cannula, so that any overpressure in the system will be virtually invisible. In addition, even in the congested vein that has a hydrostatic pressure of at least 20-30 cm, in dots, so it would have to have an uplifting dear friend overpressure prevailing in the apparatus to let in air occur in a congested vein. The equipment is an actual enrichment of the instrumentation of the doctor and the purchase can be highly recommended ".
So UNGER was still alive in 1934, so it can not be about Franz UNGER (1800-1870), but only about Ernst UNGER, who died in an accident in 1939 ...
- Ernst Unger, Unterschiede in der Ausscheidung der Gruppenmerkmale. Indikationen und Technik der Bluttransfusion.
- Ernst Unger, Fehler und Gefahren bei der Bluttransfusion. Med. Welt 1933, Nr 17.
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