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  • Title: TWITCHER: a device to stimulate thumb twitch response to ulnar nerve stimulation.
    Author: Lampotang S, Good ML, Heijnen PM, Gravenstein JS.
    Journal: J Clin Monit Comput; 1998 Feb; 14(2):135-40. PubMed ID: 9669451.
    Abstract:
    OBJECTIVE: To design and fabricate a device to simulate evoked thumb adduction in response to ulnar nerve stimulation. METHODS: We implemented a computer-controlled, motorized thumb (TWITCHER) that responds to ulnar nerve stimulation by an unmodified peripheral nerve stimulator. Clinically realistic response patterns are generated for both depolarizing and non-depolarizing muscle relaxants and three modes of stimulation (single twitch, train-of-four, tetanus). RESULTS: The device has been used in a full-scale patient simulator for the last six years. DISCUSSION: TWITCHER has been well received by participants in simulation exercises including the use of neuromuscular blocking drugs.
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