نتایج جستجو برای: nerve stimulator
تعداد نتایج: 169176 فیلتر نتایج به سال:
This paper presents experience with a hand grasp neuroprosthesis that is controlled by means of signals from natural sensors in the skin. The signals from the natural sensors were recorded with a cuff electrode implanted around the palmar digital nerve innervating the radial aspect of the index finger. The implanted muscle stimulator is part of the commercial FREEHAND® System. A data-recording ...
The purpose of this study was to evaluate possibilities and technical risks for combining intended electrical stimulation of the cochlear nerve and functional magnetic resonance imaging (fMRI). Theoretical considerations and experiments indicate that fMRI can be performed safely during electrical stimulation. A nerve stimulator was developed with minimized length of electrical conductors, curre...
[Purpose] This study investigated two-point discrimination (TPD) and the electrical sensory threshold of the blind to define the effect of using Braille on the tactile and electrical senses. [Subjects and Methods] Twenty-eight blind participants were divided equally into a text-reading and a Braille-reading group. We measured tactile sensory and electrical thresholds using the TPD method and a ...
The relationship between the time of onset of neuromuscular blockade and the time at which laryngoscopy was attempted was studied in patients presenting for emergency obstetric or emergency general surgical procedures. "Train-of-four" stimulation and visual observation of the evoked twitch response in the hand were used as a measure of the degree of neuromuscular blockade. The attendant anaesth...
Hiccups have more than 100 etiologies. The most common etiology has gastrointestinal origins, related mainly to gastric distention and gastroesophageal reflux disease. Intractable hiccups are rare but may present as a severe symptom of various diseases. Hiccups are mostly treated with non-invasive or pharmacological therapies. If these therapies fail, invasive methods should be used. Here, we p...
A low-cost PC-based 2-channel stimulator was designed. This device can generate regular current pulses for many neuroscience experiments. It can also generate irregular pulses for nerve stimulation, thus could possibly avoid the problem of sensitization or habituation in the central nervous system. The stimulation frequency (can be < 0.0005 Hz) and pulse duration (5 microseconds to 65 ms) of th...
The author discusses various procedures for assessing the patient's degree of muscle relaxation utilizing a peripheral nerve stimulator. Based on clinical observation, a preferred method is offered. To obtain the relaxation necessary for certain surgical procedures, the usual technique is to administer a pre-calculated dose of non-depolarizing muscle relaxant. The most common method to calculat...
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