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  • 1
    Electronic Resource
    Electronic Resource
    Uniform discrete random-variable generator (1973)
    Springer
    Medical & biological engineering & computing 11 (1973), S. 362-364 
    Details
    ISSN: 1741-0444
    Keywords: Message source ; discrete ; independent ; uniform
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02475550
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  • 2
    Electronic Resource
    Electronic Resource
    Operator error in multistate myoelectric control systems (1978)
    Springer
    Medical & biological engineering & computing 16 (1978), S. 296-301 
    Details
    ISSN: 1741-0444
    Keywords: Error analysis ; Myoelectric control
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Description / Table of Contents: Sommaire Un système de commandes myoélectriques est celui, où le fonctionnement d'un dispositif est contrôlé par le potentiel électrique produit par la contraction volontaire d'un muscle. Ces systèmes sont surtout employés pour la commande de membres artificiels. Les premiers types de systèmes de commande était empiriques, mais de récents travaux ont produit des bases théoriques, pouvant prédire leur performance. Ceci devrait pouvoir améliorer les systèmes déjà existants, et rendre possible le développement de prothèses plus complexes.
    Abstract: Zusammenfassung Bei einem myoelektrischen Steuersystem wird der Betrieb eines Geräts durch ein elektrisches Potential gesteuert, das durch freiillige Kontraktion eines Muskels erzeugt wird. Diese Systeme wurden hauptsächlich zur Kontrolle künstlicher Glieder verwendet. Frühere Entwürfe des Steuersystems waren empirisch, jedoch wurden kürzlich einige theoretische Grundlagen erarbeitet, die ihre Leistung vorbestimmen können. Dieses wird zur Verbesserung der bestehenden Systeme führen und die Entwicklung mehr komplexer Prothesen wahrscheinlicher machen.
    Notes: Abstract A myoelectric control system is one in which the operation of a device is controlled by the electric potential produced by voluntary contraction of a muscle. These systems have been used mainly for the control of artificial limbs. Early design of the control systems was empirical, but recent work has provided some theoretical basis for predicting their performance. This should lead to improvements in existing systems and make feasible the development of more complex prostheses.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02442431
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  • 3
    Electronic Resource
    Electronic Resource
    Sensory-feedback system compatible with myoelectric control (1980)
    Springer
    Medical & biological engineering & computing 18 (1980), S. 65-69 
    Details
    ISSN: 1741-0444
    Keywords: Electrocutaneous stimulation ; Myoelectric control ; Prosthetics ; Sensory feedback
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: Abstract Progress in the development of a system to provide sensory feedback of the pinch force of an artificial hand is described. Design criteria relating to electrocutaneous stimulation and compatibility with myoelectric control are discussed. Details of a practical system, presently in use by two amputees prior to full-scale clinical evaluation, are presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02442481
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  • 4
    Electronic Resource
    Electronic Resource
    Implantable myoelectric control system with sensory feedback (1985)
    Springer
    Medical & biological engineering & computing 23 (1985), S. 87-89 
    Details
    ISSN: 1741-0444
    Keywords: Myotelemetry control ; Sensory feedback ; Telemetry implant
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02444035
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  • 5
    Electronic Resource
    Electronic Resource
    A biphasic pulse burst generator for afferent nerve stimulation (1987)
    Springer
    Medical & biological engineering & computing 25 (1987), S. 77-80 
    Details
    ISSN: 1741-0444
    Keywords: Myoelectric control ; Nerve stimulator ; Pulse burst ; Sensory feedback
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02442825
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  • 6
    Electronic Resource
    Electronic Resource
    Oxygen transfer across a reciprocating membrane (1983)
    Springer
    Medical & biological engineering & computing 21 (1983), S. 688-696 
    Details
    ISSN: 1741-0444
    Keywords: Artificial lung ; Gas transfer ; Membrane oxygenator ; Oxygenator ; Reciprocating motion
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: Abstract A method of increasing the rate of oxygen transfer into the liquid in a membrane oxygenator was investigated. A reciprocating motion was imparted to a microporous membrane separating a deoxygenated saline solution from air, and the concentration of dissolved oxygen was measured. Rates of oxygen transfer were calculated for a smooth membrane surface in contact with the liquid, for a screen-roughened surface, and for a roughened surface with additional turbulence promoters attached. The mass transfer coefficients obtained from these experiments are in the upper range of literature values for membrane oxygenators. The screen roughness increased the transfer rates by a factor of approximately three compared with the smooth surface. The turbulence promoters had no further effect.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02464031
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  • 7
    Electronic Resource
    Electronic Resource
    Control performance characteristics of myoelectric signal with additive interference (1991)
    Springer
    Medical & biological engineering & computing 29 (1991), S. 84-88 
    Details
    ISSN: 1741-0444
    Keywords: Control ; Interference ; Myoelectric ; Performance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: Abstract Myoelectric signal is an important source of control information for powered prostheses. A commonly used performance measure for the signal processors of such control systems is the ratio of processor output mean to variance. This ratio (SNR) is a function of a number of factors including physiological parameters and additive interference. The paper investigates the effects of motor unit physiological parameters and interference on control performance, with particular reference to SNR. Performance equations are derived and verified within vivo experiments. The results show a complex interaction among the physiological parameters and interference. A particular point of interest is the misleading SNR values that can occur under certain recruitment and interference conditions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02446301
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  • 8
    Electronic Resource
    Electronic Resource
    Epoxy moulding system for the encapsulation of microelectronic devices suitable for implantation (1986)
    Springer
    Medical & biological engineering & computing 24 (1986), S. 206-208 
    Details
    ISSN: 1741-0444
    Keywords: Epoxy encapsulants ; Epoxy moulding ; Implant encapsulation ; Implant packaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02443939
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  • 9
    Electronic Resource
    Electronic Resource
    Split power rails for battery operated equipment—design alternatives (1986)
    Springer
    Medical & biological engineering & computing 24 (1986), S. 325-328 
    Details
    ISSN: 1741-0444
    Keywords: Power supply ; Battery-operated equipment ; Circuit design
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02441632
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  • 10
    Electronic Resource
    Electronic Resource
    Noise characteristics of stainless-steel surface electrodes (1991)
    Springer
    Medical & biological engineering & computing 29 (1991), S. 585-590 
    Details
    ISSN: 1741-0444
    Keywords: Amplifier noise ; Disk electrodes ; Electrodes ; Impedance ; Myoelectric signals ; Neuroelectric signals ; Noise ; Skin surface ; Stainless steel ; Thermal noise
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: Abstract Bioelectric events measured with surface electrodes are subject to noise components which may be significant in comparison with low-level biological signals such as evoked neuroelectric potentials, and myoelectric potentials. In an effort to better understand noise arising from these electrodes, electrode and measurement system noise is modelled. The effect of electrode surface area on electrode impedance and noise is studied using circular stainless-steel electrodes of varying diameters. The main contributions of the work are the development of a model for stainless-steel electrode noise as a function of electrode area, and demonstrating that, for the band-width of interest to evoked neuroelectric and myoelectric signals (8–10 000 Hz), the primary noise components are thermal and amplifier current generated. The magnitudes of both of these depend on the electrode impedance magnitude. Electrode impedance is shown to be a power function of both electrode diameter and frequency, consistent with a capacitive electrode model.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02446089
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