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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of clinical monitoring and computing 12 (1995), S. 21-24 
    ISSN: 1573-2614
    Keywords: monitoring ; physiologic ; human factors ; display ; head-up ; private eye
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science , Medicine
    Notes: Abstract To solve the problem of monitoring the patient during administration of anesthesia, a commercially available headup display (HUD) was evaluated during one day of surgery at the Ohio State University Hospitals. This monitor is mounted on a headband worn by the anesthesiologist. It projects a monochrome image of monitor data directly into one eye. Eleven anesthesiologists tested the device. Most users were able to adjust to the monitor in about fifteen minutes. Nine of the testers expressed a desire to evaluate the monitor further. Their major complaints were that the connecting cable between the HUD and its computer was too short, the resolution of the monitor was inadequate, and the data on the screen were not organized in a familiar way. If these problems could be corrected, most users believed that this HUD could be a valuable tool to aid the anesthesiologist in the operating room.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of clinical monitoring and computing 15 (1999), S. 57-61 
    ISSN: 1573-2614
    Keywords: Equipment ; monitoring ; anesthesia, inhalational ; anesthetics, volatile ; halothane ; enflurane ; isoflurane ; vaporizer ; key-filling systems ; mixture ; errors ; human factors
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science , Medicine
    Notes: Abstract The creation of agent mixtures from the addition of the wrong agent to a vaporizer might pose a risk to the patient. Patient injury would be more likely if the anesthesia gas monitor displayed erroneous concentration values. Conventional inhalation agent monitors do not necessarily distinguish anesthetic agents. Some modern monitors have that ability but its clinical significance has not been determined. We wanted to simulate such an erroneous mixture in a laboratory setup. Six comparisons were made. Isoflurane, Enflurane, and Halothane vaporizers were first filled with the correct agent. They were run at 5 liters/minute fresh oxygen flow at a vaporizer dial setting of 5% until it reached the “refill” line. Then, one of two incorrect agents was added to the “full” line. Thereafter, the vaporizer continued at the same flow and the same dial setting until it was exhausted. Vaporizer output was recorded or calculated by using three methods of measurement: mass spectrometry, conventional infrared analysis (at 3.3 micrometer wave length), and piezoelectric crystal analysis. Additional calculations were used to estimate measurements that could not be made because of lack of available equipment. In a Halothane vaporizer: Enflurane added – not a significant problem; Isoflurane added – not a significant problem. In an Isoflurane vaporizer: Halothane added – not a significant problem; Enflurane added – not a significant problem. In an Enflurane vaporizer: Isoflurane added – not a significant problem; Halothane added – The sum of the delivered Halothane MAC and the delivered Enflurane MAC was twice the expected Enflurane MAC output from vaporizer, with conventional agent monitor reading which showed decreasing agent concentration. Patient injury could be more likely in this last case. In this last case and in all cases, piezoelectric crystal monitoring correctly displayed the sum of the two agent concentrations in volumes percent. Automatic agent identification can identify erroneous agents.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Journal of clinical monitoring and computing 16 (2000), S. 541-546 
    ISSN: 1573-2614
    Keywords: Alarms ; alarm sounds ; human factors ; medical devices ; monitoring ; medical ; music ; standardization ; national standards ; international standards
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science , Medicine
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Journal of clinical monitoring and computing 14 (1998), S. 89-94 
    ISSN: 1573-2614
    Keywords: Anesthesia ; automatic ; recordkeeping ; medical records ; computers ; human factors
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science , Medicine
    Notes: Abstract Objective. To install and successfully use early commercial automatic anesthesia recordkeepers, the Diatek Arkive “Organizer” units, in the operating rooms at a major university medical center. Methods. Because of the history of previous academic attempts at automatic anesthesia recordkeeping, the units were installed on a “surprise” basis, with hardly any discussion of the devices beforehand. Results. The devices themselves had a number of minor difficulties at the start, most of which were promptly corrected. Eventually the units were in use in all non-cardiac general operating rooms. At one point, usage reached over 90% of possible cases. Continued opposition to the device on the part of certain individuals, coupled with the obsolescence of the present devices in light of new technology, led to the eventual abandonment of the system and removal of the devices from service. Discussion. Total resistance to the new devices on the part of a few vocal faculty members was a major factor in the ultimate downfall of the system. The method of introduction, and especially the lack of involvement of faculty, residents, surgeons, operating room personnel, hospital computer personnel, and the hospital administration in the installation also played a role in the failure of the system. Lack of a workable training mechanism for new residents prevented that user group from rapidly gaining comfort with the systems.
    Type of Medium: Electronic Resource
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