Methods for the assessment of neuromuscular function by F-wave latency

Inactive Publication Date: 2009-01-29
GOZANI SHAI N +1
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  • Abstract
  • Description
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Benefits of technology

[0029]An apparatus and method for the essentially automated and accurate assessment of neuromuscular function is therefore provided. The apparatus and methods of the invention allo

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An abnormally high delay between stimulus application and detection of

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  • Methods for the assessment of neuromuscular function by F-wave latency
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  • Methods for the assessment of neuromuscular function by F-wave latency

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Embodiment Construction

[0044]The present invention offers a detection and monitoring system for peripheral neurological conditions, such as Carpal Tunnel Syndrome, diabetic neuropathy, and toxic neuropathies, that is less time consuming, less expensive, and more available to a wider range of the general public than existing systems. One of the most effective ways to detect peripheral neuropathies is to monitor the response of a motor nerve to stimulation.

[0045]A motor nerve response signal typically consists of two components, namely the M-wave component and the F-wave component. The M-wave component is generally quantified by the distal motor latency (DML). The DML is generally defined as the amount of time that elapses between the start of the stimulus (i.e., time=0) and the initial negative deflection of the M-wave component of the muscle response signal (i.e., myoelectric potential). The F-wave component of the muscle response signal, on the other hand, is typically quantified by the minimum or median...

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Abstract

Methods are provided for the assessment of neuromuscular function by F-wave latency. Stimuli are applied to a nerve that traverses a wrist or an ankle joint of an individual. Stimulation of the nerve causes a muscle innervated by that nerve to respond, thereby generating a myoelectric potential. One component of the myoelectric potential is the F-wave component. The F-wave latency between application of the stimulus and the detection of the myoelectric potential is used to provide an assessment of a neuromuscular function of the nerve and/or muscle.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]The present application is a continuation-in-part of U.S. Ser. No. 09 / 022,990, filed Feb. 12, 1998, which is a divisional of U.S. Ser. No. 08 / 886,861, filed Jul. 1, 1997 and now U.S. Pat. No. 5,851,191, both of which are hereby incorporated by reference.FIELD OF THE INVENTION[0002]The invention relates to apparatus and methods for assessment of neuromuscular function. More specifically, the invention relates to apparatus and methods for diagnosing peripheral nerve and muscle pathologies based on assessments of neuromuscular function.BACKGROUND OF THE INVENTION[0003]There are many clinical and non-clinical situations that call for rapid, reliable and low-cost assessments of neuromuscular function. Reliable and automated devices are needed to monitor neuromuscular function in surgical and intensive care settings. For example, muscle relaxants significantly improve surgical procedures and post-operative care by regulating the efficacy of ner...

Claims

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Application Information

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IPC IPC(8): A61B5/05A61B5/0488A61B5/11
CPCA61B5/0488A61B5/05A61B5/1106A61B2505/05A61B5/7217A61B5/7239A61B5/6825A61B5/6824A61B5/4041A61B5/389A61B5/395
Inventor GOZANI, SHAI N.NEIMARK, MATTHEW A.
Owner GOZANI SHAI N
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