Device for measuring finger flexion and extension muscle force accurately

Abstract

The invention discloses a device for measuring finger flexion and extension muscle force accurately. A finger bearing fixed screen plate is arranged on an ergometer fixed platform, and the ergometer fixed platform and the finger bearing fixed screen plate form a U-shaped structure; a wrist and palm bearing fixed screen plate which is in an upper-and-lower layer screen plate structure is arranged below a recess of the U-shaped structure; an ergometer is fixedly connected with an ergometer fixed plate which is connected with the ergometer fixed platform; and fastening nails which are inserted in the finger bearing fixed screen plate and the wrist and palm bearing fixed screen plate and used for limiting wrists, palms and fingers are arranged. The device is reasonable in structure, convenient to use, accurate in measurement and good in working performance; and measured finger flexion and extension strength reference values of normal people are of important value to condition evaluation, preoperative evaluation and the like.

Description

technical field [0001] The invention relates to a device for measuring flexion and extension muscle strength of fingers. Background technique [0002] Brachial plexus injury, nerve entrapment, and partial finger defect are common clinical diseases in hand surgery, which will affect the flexion and extension muscle strength of one or more fingers. At present, the measurement of flexion and extension muscle strength of a single finger of the other four fingers except the thumb has not been systematically studied. The commonly used muscle strength evaluation method is manual muscle testing (MMT), which divides muscle strength into 0-5 grades. The evaluation method is too general. For example, the judgment of grade 2 / 3 is based on resistance to self-gravity, but the self-gravity of the finger is very small, so the judgment result is not suitable for clinical evaluation of the disease and recovery follow-up. It is imperative to accurately measure the flexor and extensor muscle st...

AI Technical Summary

Problems solved by technology

[0004] At present, research on finger muscle strength at home and abroad is mainly focused on the range of muscle strength produced by the intrinsic muscles of the hand, and some measuring devices have been created, most of which are handheld devices, which cannot avoid the influence of the tester's pulling

Little research has been done on precise measurement devices for finger flexor and extensor muscles

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