Stryker Instruments

Patrick J Del Medico

Donald W Malackowski

Richard Franklin Huyser

Jerry A Culp

Douglas Alan Staunton

Mark A Wasserman

Harry A Wellons, Iii

A neuro-muscular electrical stimulation system provides a series of electrical pulses to instigate muscle twitch to aid in preventing the occurrence of deep vein thrombosis. The duration and duty cycle of the electrical pulses provided to a patient's muscle tissue is controlled to instigate muscle twitch without causing tetanic muscle contractions. The system preferably includes a single electrode that is placed upon each calve of a patient. The electrical stimulator device includes a unique housing and circuit board arrangement that facilitates easy assembly without requiring any soldering connections between the circuit board, a power source and electrical leads that are utilized to provide signals to the electrodes that are placed on the patient. The circuit board preferably is made from a slightly resilient plastic material that is flexed from a disconnected position into an electrically connected position upon assembly of the stimulator device.

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Portage, MI, United States of America

Patrick J Del Medico