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Biomedical subjects

J O Wear

Publications and source records attributed to J O Wear.

11 recordsLinked to original sources

Technology and the future of medical equipment maintenance.

Maintenance of medical equipment has been changing rapidly in the past few years. It is changing more rapidly in developed countries, but changes are also occurring in developing countries. Some of the changes may permit improved maintenance on the higher technology equipment in developing countries, since they do not require onsite expertise. Technology has had an increasing impact on the development of medical equipment with the increased use of microprocessors and computers. With miniaturization from space technology and electronic chip design, powerful microprocessors and computers have been built into medical equipment. The improvement in manufacturing technology has increased the quality of parts and therefore the medical equipment. This has resulted in increased mean time between failures and reduced maintenance needs. This has made equipment more reliable in remote areas and developing countries. The built-in computers and advances in software design have brought about self-diagnostics in medical equipment. The technicians now have a strong tool to be used in maintenance. One problem in this area is getting access to the self-diagnostics. Some manufacturers will not readily provide this access to the owner of the equipment. Advances in telecommunications in conjunction with self-diagnostics make available remote diagnosis and repair. Since components can no longer be repaired, a remote repair technician can instruct an operator or an on-site repairman on board replacement. In case of software problems, the remote repair technician may perform the repairs over the telephone. It is possible for the equipment to be monitored remotely by modern without interfering with the operation of the equipment. These changes in technology require the training of biomedical engineering technicians (BMETs) to change. They must have training in computers and telecommunications. Some of this training can be done with telecommunications and computers.

Equipment Failure↗

Effect of fluorocarbon emulsions on the mechanical fragility of normal and sickle cells: in vitro studies.

Mechanical fragility measurements have been made in vitro on fluorocarbon emulsions mixed with normal and sickle cells in plasma to determine the effect of fluorocarbon. Emulsions of FC-80 with Pluronic F-68 were added to give final solutions of 0, 1, 5, 10, and 20% fluorocarbon emulsion. The effect of the fluorocarbon emulsion was observed in the presence and absence of oxygen. In the presence of oxygen, there was no effect of the fluorocarbon emulsion on the mechanical fragility of normal or sickle cells. In deoxygenated systems, however, there was significantly less hemoglobin in the plasma during the mechanical fragility test with fluorocarbon emulsion added to sickle cell blood. The normal blood was not affected by the fluorocarbon emulsion in the deoxygenated system. Five percent of fluorocarbon emulsion was required for a significant effect on the deoxygenated sickle cells. Since the effect of the fluorocarbon emulsion was in a deoxygenated condition, the effect is due to the presence of the fluorocarbon emulsion and not its oxygen carrying capability.

Anemia, Sickle Cell↗

Veterans Administration BMET certification exam.

The Veterans Administration has developed a program to evaluate the level of competency of its medical equipment repairmen and to recognize those who surpass an established level of competency. This evaluation is carried out by means of testing. A passing score of 70% on all sections of the exam results in certification while failure results in enrollment in correspondence or short courses. Periodic evaluations of the exam are carried out to determine questions to be added or deleted and those which should be reworded. Since time limits are set for completing the exam, those time limits are also evaluated.

Biomedical Engineering↗

Profile of a BMET (biomedical equipment technician) in small hospitals.

A survey was done of biomedical engineering programs in hospitals of under 100 beds. A random sampling of 400 hospitals was selected from the American Hospital Association Guidebook. Questions were asked with regard to the size, educational background and experience of the biomedical engineering staff. The organizational location of the program was surveyed, and most programs were part of facility engineering. Programs are discussed as full-time, part-time and outside service contracts. An in-depth analysis of the educational and training background of BMETs has been done. This part of the study covered the type of training and what additional training they felt they required.

Adult↗