(28 days)
The intended use of the Chatillon FCE and MSC series dynamometers is for performing manual muscle testing to measure muscle strength. The target population for this product is individuals recovering from physical injury or for sports medicine applications.
The Chatillon FCE and MSC series dynamometers are diagnostic devices used for evaluating muscle strength. These instruments are powered by a rechargeable battery (4.8 VDC) which supplied a regulated 2.5 VDC excitation voltage to a strain gauge load cell. The analog output from the load cell (2 mV/V) is then converted to a digital signal that is directly proportional to the applied force. This digital signal is then sent to a microprocessor, which converts the signal to a force value that is stored in memory and/or displayed on the dynamometer graphical display. This design has been used for many years in industrial force measuring instruments and has been also used for physical therapy, occupational medicine and sports medicine. These medical dynamometers are a repackaged version of the industrial force measurement instruments and are designed with special medical attachments that are appropriate for performing manual muscle testing and ergonomic analysis.
The provided text is a 510(k) summary for a medical device (dynamometer) and a letter from the FDA. It does not contain information about acceptance criteria, device performance studies, sample sizes, expert qualifications, or ground truth establishment. This document is a regulatory approval, not a scientific study report.
Therefore, I cannot fulfill your request for information regarding acceptance criteria, study details, and performance metrics as it is not present in the provided text.
§ 888.1240 AC-powered dynamometer.
(a)
Identification. An AC-powered dynamometer is an AC-powered device intended for medical purposes to assess neuromuscular function or degree of neuromuscular blockage by measuring, with a force transducer (a device that translates force into electrical impulses), the grip-strength of a patient's hand.(b)
Classification. Class II (special controls). The device is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 886.9.