摘要:

This paper discusses a design strategy for assistive equipment for disabled people, in particular for special switches and control systems to enable the severely physically handicapped to control powered wheelchairs, computers, communication aids and environmental control systems. Special switch systems in this application must provide a complex human-equipment interface. Experience over a number of years with over 80 severely handicapped young people has refined the design strategy for both special switch systems and interfacing. Some examples are given of a problemled approach, and the materials used and the method of manufacture are discussed.

ISSN:0309-1902    

DOI:10.3109/03091909009015419

出版商:Taylor&Francis    

年代:1990

数据来源: Taylor

摘要:

Three techniques for measuring fracture healing are presented. These techniques are: (1) use of strain gauge measurements of the forces in an external fixator to determine fracture stiffness, (2) measurement of the vibration modes of a fractured long bone compared to the unfractured contralateral and (3) comparison of the ultrasound velocity across the fracture site with that for the normal unfractured bone. Examples of clinical results obtained using these techniques are presented, and the advantages and disadvantages of each technique are discussed.

ISSN:0309-1902    

DOI:10.3109/03091909009015420

出版商:Taylor&Francis    

年代:1990

数据来源: Taylor

摘要:

This paper reports the results of a preliminaryin vivoinvestigation in which laser Doppler blood-flow measurements were made in a variety of tissues in the anaesthetized rat using a twin wavelength laser Doppler system. The aim was to assess whether there was any detectable difference in the depth response of the laser Doppler system to blood-flow in skin, muscle and brain tissue using red light (633 nm) from a He—Ne laser source and near infrared (NIR) light (780 nm) from a semiconductor diode laser source. The results show that under normalized conditions, the flow signals obtained from the near infrared laser Doppler system is consistently larger than that recorded from the red He—Ne laser Doppler system. This suggests that laser Doppler flowmetry systems based on NIR laser sources sample larger volumes of tissue than those based on red He—Ne lasers.

ISSN:0309-1902    

DOI:10.3109/03091909009015421

出版商:Taylor&Francis    

年代:1990

数据来源: Taylor

摘要:

A brief history of the regulation of medical device software within the United States is presented, along with a discussion of the reasoning that the US Food and Drug Administration (FDA) presents for modifying the requirements for software regulation from those previously used for hardware devices. The current regulatory status is discussed for the two categories of medical device software, software used within medical devices and software used to produce or test medical devices. The published FDA documents which determine the current environment for the regulation of software are summarized and discussed. The two types of medical device software are related to the two areas of FDA regulation, good manufacturing practices and permission to sell medical devices. The expected direction of future medical device software regulation, and its relationship to the European Economic Community (EEC) and international markets is discussed.

ISSN:0309-1902    

DOI:10.3109/03091909009015422

出版商:Taylor&Francis    

年代:1990

数据来源: Taylor

摘要:

Total Knee Replacement Edited by S. Niwa. J. P. Paul and S. Yamamoto, Springer Vcrlag, Japan. ISBN 70031-5. 288 pages. 1988.

ISSN:0309-1902    

DOI:10.3109/03091909009015423

出版商:Taylor&Francis    

年代:1990

数据来源: Taylor

ISSN:0309-1902    

DOI:10.3109/03091909009015424

出版商:Taylor&Francis    

年代:1990

数据来源: Taylor

ISSN:0309-1902    

DOI:10.3109/03091909009015425

出版商:Taylor&Francis    

年代:1990

数据来源: Taylor

ISSN:0309-1902    

DOI:10.3109/03091909009015426

出版商:Taylor&Francis    

年代:1990

数据来源: Taylor

ISSN:0309-1902    

DOI:10.3109/03091909009015427

出版商:Taylor&Francis    

年代:1990

数据来源: Taylor

ISSN:0309-1902    

DOI:10.3109/03091909009015428

出版商:Taylor&Francis    

年代:1990

数据来源: Taylor