Meditsinskaia tekhnika
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Meditsinskaia tekhnika · Jul 1997
[The use of sigma-delta analog-digital conversion in multichannel electrocardiographs].
With advances in the manufacture of super great integrated circuits, a commercially available element base that realizes the sigma-delta (sigma-delta) analog-to-digital conversion principle in one microcircuit has appeared. The sigma-delta analog-to-digital converters (ADC) have a high resolving power (above 12 bits), they are largely based on the signal digital filtration principles, which may moderate requirements for the analog filtration of signals and use direct-current amplifiers as alternatives to instrument ones. ⋯ The use of sigma-delta ADC in the electrocardiographs has been shown to be a rather useful alternative of traditional ADC. Moreover, sigma-delta ADC may be also useful for other systems for collecting and processing biomedical signals which are close in their requirements for a frequency range and a dynamic range, i.e. encephalographic, myographic, rheographic and other input signals.
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Meditsinskaia tekhnika · Mar 1996
[Experience in introducing monitoring computer systems in anesthesiology and intensive care units].
The paper describes the author's experience in practically using a monitoring computer system at the Anesthesiology, Resuscitation and Intensive Care Unit, Republican Clinical Hospital No.1, in Izhevsky Udmurtia. The system enables physicians, primarily anesthesiologists-reanimatologists to automate their work. It also allows the problem of routine accounting and report documentation to be solved.
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Meditsinskaia tekhnika · Jan 1996
[The standardization of equipment for artificial pulmonary ventilation and inhalation anesthesia in Russia].
Basic trends in the standardization of anesthetic and respiratory equipment are considered. Its important impact on the functional characteristics, safety, and specific features in the manufacture of apparatuses, for artificial lung and ventilation anesthesia are stressed. ⋯ Basic difficulties in applying the standards are due to a great number of various normative documents, a more strict and frequently formal approach that exists in Russia for meeting the specifications, weak effectualness of standards for components used in general engineering. Topical tasks to harmonize the requirements for standards, to make consideration of the existing features of design, production, and use better, and to expand the requirements for the functional characteristics of equipment are set.
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Meditsinskaia tekhnika · Mar 1995
Comparative Study[New high-strength corrosion-resistant steel for medical instruments].
New high-strength corrosion-resistant steel based on ageing martensite, metastable and stable austenite intended for the production of medical instruments for different purposes are considered. There are data on changing mechanical properties of corrosion-resistant steel and their dependence on thermoplastic treatment condition.
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Meditsinskaia tekhnika · Nov 1994
[Comprehensive systematic approach to the development of technical devices for combined anesthesia].
The paper deals with the systemic comprehensive design of hardwarses for combined anesthesia, provides the principle of operation of apparatures for inhalation anesthesia, the pattern of the designed complex, as well as the functional properties of inhalation anesthesia equipment of different generations.