摘要:

A discussion is presented on the control aspects of upper-limb prostheses, with emphasis on the areas of necessary improvements in current designs. Arguments are presented to indicate that it should be possible to obtain a substantial improvement in prostheses control by properly training the amputee, improving the dynamics responst of the prostheses, and improving the quality of the forward-path control signal. Augmentation of feedback information, although useful, may not be essential. The limitations of the myoelectric (muscle) signal as a forward-path control signal, especially for multiplc degrees-of-freedom prostheses, is discussed. Most of the limitations of the myoelectric signal can be overcome if the neuroelectric (nerve) signal is used as a forward-path control signal. Results of a series of experiments which demonstrate the feasibility of constructing an electrode capable of being implanted around severed nerves and of detecting neuroelectric signals for prolonged periods of time are presented. A possible scheme for employing neuroelectric control is also presented.

ISSN:0309-1902    

DOI:10.3109/03091907809161756

出版商:Taylor&Francis    

年代:1978

数据来源: Taylor

摘要:

The health service and educational systems, together with industry and research centres, are the primary institutions involved in the development of the bio-engineering profession in West Germany. Since industry and research institutions in West Germany are similar in structure to those in other countries, for the purposes of international comparison only the health service and educational systems are described. The questions“how many bioengineers are needed?”and“how many should be trained?”, were the motivation for a professional field analysis commissioned by the German Society for Biomedical Engineering. This commission found a need for about seven thousand bioengineers and bio-technicians in West Germany. It is shown, however, that there are actually very few positions open, and some measures to create more positions are discussed.

ISSN:0309-1902    

DOI:10.3109/03091907809161757

出版商:Taylor&Francis    

年代:1978

数据来源: Taylor

摘要:

An examination has been made of the involvement of chemical engineers in medicine in North America. Fields of Study and subjects of research are briefly given in tabular form and the general statistical picture of chemical engineering in medicine discussed. Further details of the workers and references to their published work can be obtained from the author if required.

ISSN:0309-1902    

DOI:10.3109/03091907809161758

出版商:Taylor&Francis    

年代:1978

数据来源: Taylor

ISSN:0309-1902    

DOI:10.3109/03091907809161759

出版商:Taylor&Francis    

年代:1978

数据来源: Taylor

摘要:

An automatic recording system for measurements of biological impedances at different frequencies is described. The system comprises a signal synthesiser and a network analyser controlled by a desk calculator. The impedance and phase angle are recorded at one hundred and sixty logarithmically-spaced frequencies between 100 Hz and 1 MHz. A pilot study was conducted to explore the usefulness of the system for investigating fluid balance problems.

ISSN:0309-1902    

DOI:10.3109/03091907809161760

出版商:Taylor&Francis    

年代:1978

数据来源: Taylor

ISSN:0309-1902    

DOI:10.3109/03091907809161761

出版商:Taylor&Francis    

年代:1978

数据来源: Taylor

ISSN:0309-1902    

DOI:10.3109/03091907809161762

出版商:Taylor&Francis    

年代:1978

数据来源: Taylor

ISSN:0309-1902    

DOI:10.3109/03091907809161763

出版商:Taylor&Francis    

年代:1978

数据来源: Taylor

ISSN:0309-1902    

DOI:10.3109/03091907809161764

出版商:Taylor&Francis    

年代:1978

数据来源: Taylor

ISSN:0309-1902    

DOI:10.3109/03091907809161766

出版商:Taylor&Francis    

年代:1978

数据来源: Taylor