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H J Bergmann

Publications and source records attributed to H J Bergmann.

16 recordsLinked to original sources
PubMed1990

[Thermal sterilization in the revision of the sterilization section of the East German medical reference].

The G-value estimating sterilization-process is offered and compared with other scales selected from bibliography. Based on the kinetic of destruction of microorganisms the G-value considers every parts of sterilization-processes especially with reference to peak-sterilization. It takes into account the resistance of microorganisms, the safety index and also the influence of germ reducing measures, e.g. cleaning, before the sterilization-processes. Finally a formula is presented to transform G- and F-values each other.

Bacterial Physiological Phenomena↗
PubMed1984

[Evaluation of the use of bioindicators of spore-containing soil for the evaluation of steam sterilization in general practice conditions].

In this publication quantitative researches on the use of so-called spore-containing earth for monitoring steam-sterilization are described. The three factors necessary for medical steam-sterilization - the correct combination of saturated steam, temperature and time - cannot kill all the spores in their original earth. The surviving of single spores in native earth after steam-sterilization is of use to the calculation of the resistance of spore-containing earth by saturated steam at 121 degrees C (250 degrees F). Besides the resistance depends on the conditions under which the earth was tested for surviving germs. The relative frequency of sterile samples after steam-penetration (Po) was utilized for the calculations of characteristic lines according to the transformation in y = lg ( - ln Po) The quantity of the germs killed (G) was exactly computed by the integration of steam-temperature and the time of penetration according to the equation G = fk X dt The quantities of k were calculated and they are discovered in Table 1. A charge of spore-containing earth only then will be suitable for monitoring steam-sterilization if its characteristic line fulfils the requirements of DIN 58946, part 4, October 1978. The evaluations demonstrate that it is necessary to adapt the samples of spore-containing earth to specific conditions of incubation. The tests carried out show that native earth as bioindicator is well suited for monitoring steam-sterilization by a bacteriological laboratory (Fig. 1).(ABSTRACT TRUNCATED AT 250 WORDS)

Bacteriological Techniques↗
PubMed1975

[Combined labor induction in the small hospital].

Authors report about 504 oxytocin infusions after amniotomy or spontaneous rupture of membranes without possibility of cardiotokography. The rate of success by a 12-hour-limit is 91,9 per cent, by a 24-hour-limit 95,2 per cent. It was observed a superior rate of obstetric operations, post-partum haemorrhages and 3 cases of uterus rupture following hypersensitivity. Intravenous oxytocin infusion reduced the time of delivery. After combinating induction of labour childrens have an acceptable general condition, recorded by Apgar-score. Simultaneous induction of labour by oxytocin infusion is a high-risk proceeding in obstetric hospitals without possibility of cardiotokography. However, a renunciation of this method in default of alternatives is not accept.

Female↗