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Elaboration and testing of an user manual for the operation of the Haux Medicom transport baro-chamber intended for the treatment of decompression accidents associated with diving, verification of the transport of the affected person and its transfer for subsequent treatment
KARVÁNEK, Jakub
The aim of this thesis is to develop and test a user manual for the operation of the Haux Medicom mobile transport hyperbaric chamber designed for the treatment of decompression accidents associated with diving, as well as the verification of the transport of the affected person in the barochamber, following connection to the stable treatment barochamber and the transfer of the affected diver for subsequent complex treatment. The Haux Medicom barochamber is used by members of the diving group of the South Bohemia Fire Rescue Corps to ensure safety during rescue operations and underwater training. The Baro Chamber is used to mitigate the consequences of diving accidents and especially to treat decompression sickness. This treatment is based on the principle of recompression therapy, where the pressure in the hyperbaric chamber is gradually increased up to the prescribed therapeutic pressure, followed by a slow decompression in combination with breathing 100% oxygen. Operating this chamber requires a lot of experience and regular practice. One of the aims of this thesis is to develop a simple, clear and functional user manual to assist the person operating the barochamber. This manual has been developed and its functionality has been tested by members of the diving group and other professionals involved in this field. The second task was to verify the transport of the diver in the barochamber and his subsequent transfer to a stable hyperbaric chamber to provide further treatment. In order to accomplish this task, a tactical drill was organized by the diving group of the Fire Rescue Corps in cooperation with the Kladno Regional Hospital and this unique, never before realized attempt was successfully carried out.
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Influence of NITROX breathing mixture on psychosomatic conditions of diver, its preparation and usage in FRS CR conditions
KARVÁNEK, Jakub
The aim of this bachelor's thesis is to assess the effect of the NITROX breathing mixture on the diver's psychosomatic state in comparison with air. In an effort to increase safety and facilitate very physically and mentally demanding interventions, divers have the opportunity to use the NITROX breathing mixture (NITrogen - nitrogen and OXygen - oxygen), where oxygen is represented by more than 21%, unlike ordinary air. A frequently cited benefit is less physical fatigue after a dive with this mixture. One of the tasks of this thesis is therefore to confirm or refute the following hypothesis: "NITROX breathing mixture has a positive effect on the psychosomatic state of the diver, who is less subjectively physically and mentally tired after a dive with this mixture." Another task is to evaluate the preparation of the NITROX mixture and its use in interventions by diving groups of the Fire and Rescue Service of the Czech Republic. To obtain the results, a questionnaire survey was used, in which divers answered a set of questions concerning their subjective physical and mental condition after performing two independent dives. The dives differed only in the breathing mixture used, their profile was identical. The section relating to the preparation and use of this mixture was prepared on the basis of interviews with divers and leaders of diving groups. The results of the thesis show that after dives with the NITROX mixture, divers report slightly more positive subjective feelings regarding the physical condition. On the other hand, the results also showed that NITROX has a more negative effect on divers in terms of subjective mental state. The NITROX mixture is prepared mainly by the gas mixing method. During diving interventions it is primarily used as a decompression medium. The conclusions of this thesis did not confirm the assumed hypothesis. The recommendation for diving groups is therefore: (1) to continue to use the NITROX breathing mixture, especially as a decompression medium, and (2) to increase the frequency of separate dives with this mixture so that they are not so stressful for divers in the future.
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