Biomedical subjects

M Bohnert

Publications and source records attributed to M Bohnert.

41 records · Page 3Linked to original sources

PubMedDate not supplied

[Accidental CO poisoning by operating a charcoal grill].

In the hut of a garden plot a male body of at first unknown identity was found. Although a natural death was assumed, autopsy was ordered by the court because of the unclear identity. On autopsy bright red post-mortem lividity was found; an assay of the blood showed 55% CO-Hb. A second inspection of the place, where the body was found, revealed that a garden grill, which had originally stood near the entrance of the hut, had been carried out into the garden. To reconstruct the case, measurements of the carbon monoxide concentration in the air of the room were carried through after starting the charcoal grill. The results showed that within 60 min. the carbon monoxide content rose to 0.21% by volume and thus clearly exceeded the limit of 0.1% by volume considered as lethal.

Accidents↗

PubMedDate not supplied

[Marks on clothing and skin in absolutely and relatively close distance gunshots with fright weapons].

Based on an actual case to be examined-the victim had sustained burning and powder tattooing of the abdominal skin--test shots were performed with blank cartridge guns (Mauser and Umarex revolvers, cal. 380) in order to study the changes occurring on textiles in the area of contact and close range shots. As expected, the extent of burning and smoke soiling depended on whether the propellant of the blank cartridges consisted of nitrocellulose (Nc) or black powder. At the same distance the smokeless nitro-powder caused less soot soiling and burning than black powder. Contact or near contact shots produced tear-like tissue damages due to the pressure of the discharged muzzle gases. When black powder cartridges were used, burn holes larger than the caliber were observed; with Nc blank cartridges the thermal effects were most pronounced if textiles made of thermolabile synthetics were shot at.

Abdominal Injuries↗

PubMedDate not supplied

[Suicide or fatal accident in fantasy play?].

The death by drowning of a 25-year-old man is reported, whose putrescent body was found drifting on the surface of an artificial lake. The deceased was dressed in a coat of chain-mail and trousers of the same material. The chain-mail clothing, which had a weight of 20 kg, reminded one of a knight's armour; it had been made by the wearer himself. Around the neck there were several turns of a chain running down to the legs and tying them together. According to the police investigations it is to be assumed that the man went out on the lake in a rubber boat and then pierced the air chambers of the boat with a knife. The possible background of the case in context with the special liking for fantasy games is discussed.

Accidents↗

PubMedDate not supplied

[Suicidal stab wounds through clothing].

Most authors of medico-legal textbooks emphasize that suicides bare the chest before self-infliction of stab wounds and vice versa that cuts in the clothing indicate homicide. The paper presents three cases of suicidal stabs to the chest and/or abdomen with concomitant damage to the clothing.

Abdominal Injuries↗

PubMedDate not supplied

[Suicidal gunshots through the mouth in patients with dental prostheses].

An analysis of the forensic autopsies performed in Freiburg showed that 21% of the suicides by shooting involved a shot into the mouth. Persons in their 7th and 8th decade of life accounted for 11% of the suicides by shooting. In this age the percentage of denture-wearers is particularly high. Accordingly gunshot-related damages of complete or partial dentures are likely to be seen in forensic practice. These may involve both the denture base (mostly consisting of polymethyl methacrylate) and the teeth (made of synthetic or ceramic material). At autopsies the following findings could be seen; entry defect in the palatal part of the maxillary prosthesis larger than the calibre, funnel-shaped widening (bevelling) of the gunshot hole on the palatal side, fracture lines in the denture base radiating from the gunshot hole, injuries in the palatal soft tissues due to denture fragments, fractures of the front teeth region of the prosthesis due to the recoil impact of the foresight as well as soot soiling of the denture base and the lingual surfaces of the front teeth. The findings observed in autopsies could be experimentally reproduced by test shots on isolated complete maxillary prostheses.

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