ISSN:0363-8855    

出版商:OVID    

年代:1980

数据来源: OVID

ISSN:0363-8855    

出版商:OVID    

年代:1980

数据来源: OVID

摘要:

The objective of this project was to design a low cost electrocardiogram (EKG) monitoring system suitable for clinical use. There were four primary design specifications: (1) EDG waveforms from the standard leads were to be displayed on a strip chart recorder; (2) the heart rate (HR), in beats per minute, was to be displayed on a digital readout; (3) an audible beep for every heartbeat detected was to be produced where the tone increased as the HR increased; (4) an alarm was to be triggered if the HR went outside selected limits. The digital HR display was designed using read-only-memory (ROM) based logic. A 2k by 16-bit ROM was used as a look-up table with the address being derived from the time interval between four sequential QRS complexes. The final design was incorporated into a single enclosure. Final clinical testing demonstrated that all required specifications were met with improvements over currently available devices in specifications 1, 2, and 3.

ISSN:0363-8855    

出版商:OVID    

年代:1980

数据来源: OVID

摘要:

This paper is a brief review of the history of the study of metabolism. Energy is one of the fundamental concepts in the physical sciences and metabolism is the living organism's use of energy. By knowing some of the history of how a particular field evolved, the clinical engineer can develop a better perspective of his own work and the equipment he uses.

ISSN:0363-8855    

出版商:OVID    

年代:1980

数据来源: OVID

ISSN:0363-8855    

出版商:OVID    

年代:1980

数据来源: OVID

摘要:

A low-cost, computerized data management system has been developed on a Digital Equipment Corporation PDP11V03 computer system with dual floppy discs using BASIC in a time-shared configuration. The system collects, updates, and stores patient information on floppy discs for later retrieval and statistical analysis. All application software is written in BASIC to simplify changes or expansion, and to reduce the software labor costs for transferring the system to other low-cost microprocessor systems currently on the market. This system has been used by several hospital departments for data management and has proven to be a useful tool.

ISSN:0363-8855    

出版商:OVID    

年代:1980

数据来源: OVID

摘要:

A large, modern Medical Center requires clinical engineering services to account for all medical equipment utilized in the treatment of the short-visit clinic patient, as well as the critically ill, who require extensive hospital, surgical or medical health care. The clinics act as multiphasic screening systems, providing simple treatment and referral for more extensive medical treatment. The hospital provides the necessary medical systems to accommodate the extensive daily patient flow. Few of the clinics can provide the facilities or machines to handle the expense of newer diagnostic and therapy requirements. Manpower and funding for maintenance today is concentrated in the fast-growing Radiology, Radiation Therapy/Nuclear Medicine, and Laboratory areas of the Medical Center. These departments require service specialists, and large amounts of dedicated funding to balance and insure reasonable maintenance of the newer, high-technology equipment. Growth of such technology in the hospital must be matched by the growth of service professionals in biomedical engineering departments.

ISSN:0363-8855    

出版商:OVID    

年代:1980

数据来源: OVID

摘要:

A wide variety of mechanical hazards are associated with clinical instrumentation containing mechanical components. Therefore, safety considerations for clinical equipment must be extended to include mechanical safety standards, maintenance programs, and operating procedures. Mechanicalrisk classeshave been developed from the study of mechanical-mode failures of medical devices. To facilitate the development of priorities for clinical engineering involvement in mechanical safety programs, most mechanical devices which are commonly used in clinical practice have been assigned an appropriate risk classification. General recommendations for the development of such programs are also presented.

ISSN:0363-8855    

出版商:OVID    

年代:1980

数据来源: OVID

摘要:

Most systems for enabling a disabled individual to control an electrical device use the sip and puff technique or mechanically operated switches or levers. A system usable by a patient with severe tremor is described, in which tongue clicks are used to control a tape recorder. These clicks are found to be easily separable from voice frequencies by means of a simple high-pass filter. The user selects the various modes of the tape recorder by emitting specified numbers of clicks in a selected time period.

ISSN:0363-8855    

出版商:OVID    

年代:1980

数据来源: OVID

摘要:

Contract service and shared service organizations are the two primary alternatives to in-house maintenance of medical equipment. The emphasis on manufacturer-based service has been decreasing lately for all but the most specialized equipment. This development is due to a variety of influences, chiefly related to the economy, and the need of the hospital to access broad-based technologists to service the equipment, and provide rapid technical support. The factors which must be weighed by the hospital in considering these two approaches are examined.

ISSN:0363-8855    

出版商:OVID    

年代:1980

数据来源: OVID