Finger knuckle buckling force measuring device and use method thereof

Abstract

The invention discloses a finger knuckle buckling force measuring device which comprises a base, a sliding table, a palm fixing assembly and a measuring assembly. The sliding table is arranged on the base, and the palm fixing assembly is arranged on the sliding table and can slide in the horizontal X direction and the horizontal Y direction. The palm fixing assembly is provided with at least one limiting part, the measuring assembly is arranged on the base and comprises a pressure measurer, and the vertical position of the pressure measurer is adjustable in the vertical direction. According to the finger knuckle buckling force measuring device, quantitative measurement of single finger knuckle buckling force can be achieved, the accuracy of a measurement result can be guaranteed by limiting a palm and an arm, the uniformity of measurement positions can be achieved, and the comparison significance of data is enhanced. And through the sliding table structure, the device can be suitable for patients with different body types, and has good flexibility.

Description

Technical Field

[0001] The present invention relates to the technical field of rehabilitation equipment, and in particular to a finger joint flexion force measuring device and a use method thereof. Background Art

[0002] In the field of rehabilitation, for patients with injured or sick fingers, their damage and recovery can be quantitatively assessed by the flexion strength of their finger joints. The finger strength measurement device commonly used in practice is a handgrip dynamometer, which measures the overall grip strength of the fingers. Its data can only be used for qualitative evaluation. There are also related patent applications for this issue, such as invention patent CN103239242B, which is a device for accurately measuring the flexion and extension strength of fingers. It measures the flexion force of a single finger by pulling it, and at the same time limits the position of the wrist, palm, and fingers through a fixed pin and a fixed platform. This patent is relatively complicated to use. The fixed pin is set on one side of the wrist, palm, and finger, which makes it difficult to achieve good positioning and cannot guarantee the uniformity of the measurement position each time, making the comparison of measurement data of limited significance. Moreover, during the measurement process, based on previous force application habits, the wrist and palm can easily apply force together with the fingers, resulting in errors in the measurement results. Summary of the Invention

[0003] The purpose of the present invention is to provide a finger joint flexion force measuring device to solve the problems existing in the prior art.

[0004] In order to achieve the above-mentioned purpose, the technical solution of the present invention provides a finger joint flexion force measuring device, including a base, a slide, a palm fixing assembly, and a measuring assembly; the slide is arranged on the base, and the palm fixing assembly is arranged on the slide, which can realize horizontal XY direction sliding; the palm fixing assembly is provided with at least one limiting part, and the measuring assembly is arranged on the base, including a pressure measuring device, and the pressure measuring device is adjustable in the vertical direction.

[0005] Furthermore, the slide includes an XY bidirectional slide rail, a lower pad, and an upper pad. The XY bidirectional slide rail is fixed to the base through the lower pad, and the upper part of the XY bidirectional slide rail is connected to the palm fixing assembly through the upper pad.

[0006] Furthermore, the palm fixing assembly includes a limiting base plate and two limiting parts; the limiting part includes an outer frame, an adjustment screw, and a limiting pressure plate; the outer frame is arranged on the base plate, and the lower part of the adjustment screw passes through the threaded hole on the upper part of the outer frame and is connected to the limiting pressure plate.

[0007] Furthermore, a groove is provided at the bottom of the side panel, the two grooves are arranged opposite to each other, the limiting bottom plate is arranged on the upper part of the bottom plate, between the two grooves, and a threaded hole is provided in the groove area of ​​the side panel, and the outer frame is fixed and limited by the limiting bolts.

[0008] Furthermore, grooves or protrusions are provided on the inner side surfaces of the two side plates that are opposite to each other, and matching protrusions or grooves are provided at both ends of the limiting pressure plate; a groove is provided at the lower part of the limiting pressure plate.

[0009] Furthermore, the measuring assembly includes a pressure measuring device, a measuring base, and an adjustment slide. The measuring base is fixed on the base, and the pressure measuring device is connected to the measuring base so as to be movable up and down via the adjustment slide.

[0010] Furthermore, the adjustment slide includes a slide seat, an adjustment slide body, and an adjustment limit nut; the slide seat is fixed on the measuring base, and a vertically arranged protrusion or groove is provided on the side; the adjustment slide body is provided with a vertically arranged groove or protrusion, the adjustment slide body cooperates with the slide seat, and a through hole is provided on the side of the adjustment slide body, and the adjustment limit nut cooperates with it; the pressure measuring device is fixed to the adjustment slide body through a connecting angle plate.

[0011] The present invention also discloses a method for using the above-mentioned flexion force measuring device, including the following steps: S1, fix the arm and palm through a palm fixing assembly, with the palm facing up, and make the base of the finger flush with the front end surface of the palm fixing assembly; S2, adjust the slide so that the distal end of the finger joint to be measured is directly below the pressure head of the pressure measuring device, and then adjust the slide seat and the relative position of the slide body so that the pressure head moves downward and contacts the pad of the finger joint; S3, measure the flexion force of the finger joint, the subject lifts up the finger to push the pressure measuring device to obtain the measurement value.

[0012] Furthermore, step S1 includes the following steps: passing the arm through the outer frame of the rear limiting part, and after the fingers approach the pressure measuring device, limiting the palm through the front limiting part, passing the palm through the outer frame of the front limiting part with the palm facing up, rotating the screw downward, pressing the palm and making the base of the proximal knuckle of the finger flush with the front end surface of the limiting pressure plate, then adjusting the position of the rear limiting part to limit the arm, setting the limiting pressure plate of the rear limiting part at a position 0.5 to 1 cm behind the wrist, and rotating the screw downward to press the wrist.

[0013] Furthermore, step S2 includes the following steps: when measuring the flexion force of the metacarpophalangeal joint, the pressure measuring head contacts the fingertip at the distal end of the proximal phalanx of the finger; when measuring the flexion force of the proximal interphalangeal joint, the pressure measuring head contacts the fingertip at the distal end of the middle phalanx of the finger; when measuring the flexion force of the distal interphalangeal joint, the pressure measuring head contacts the fingertip at the distal end of the distal phalanx of the finger.

[0014] The finger joint flexion force measurement device proposed in this invention can quantitatively measure the flexion force of a single finger joint. By limiting the position of the palm and arm, the accuracy of the measurement results is guaranteed. Furthermore, the measurement position can be unified, enhancing the comparative significance of the data. The sliding platform structure allows for adaptability to patients of different body shapes, providing good flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall solution of the present invention.

[0016] Figure 2 It is an exploded schematic diagram of the components of the overall solution of the present invention.

[0017] Figure 3 It is a schematic diagram of the explosion of the slide of the overall solution of the present invention.

[0018] Figure 4 It is an exploded schematic diagram of the palm fixing assembly of the overall solution of the present invention.

[0019] Figure 5 It is an exploded schematic diagram of the measurement component of the overall solution of the present invention.

[0020] Figure 6 It is a schematic diagram of the overall scheme of an embodiment of the present invention.

[0021] Figure 7 It is a schematic diagram of the use scheme of the present invention. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] As attached Figure 1-6 As shown, the finger joint flexion force measuring device of the present invention includes a base 1, a slide 2, a palm fixing component 3, and a measuring component 4.

[0024] The slide 2 is mounted on the base 1, and the palm fixing assembly 3 is mounted on the slide 2, enabling horizontal XY sliding. The palm fixing assembly 3 is provided with at least one limiter x to restrict movement of the arm or palm. The measuring assembly 4 is mounted on the base 1 and includes a pressure measuring device 4-1, which is vertically adjustable.

[0025] Specifically, as attached Figure 1 、 2As shown in Figures 3 and 6, the slide 2 includes an XY bidirectional slide rail 2-2, a lower pad 2-3, and an upper pad 2-1. The XY bidirectional slide rail 2-2 is an existing product on the market. In the embodiment, the applicant selected the XY axis slide of the Shimotron brand, model DXY60.

[0026] The XY bidirectional slide 2-2 is secured to the base 1 via a lower pad 2-3. The upper portion of the XY bidirectional slide 2-2 is connected to the palm mount assembly 3 via an upper pad 2-1. Bolts connect the XY bidirectional slide 2-2, lower pad 2-3, and upper pad 2-1. The slide 2-2 can be moved in the X and Y directions using a handwheel or by dragging the palm mount assembly 3.

[0027] The palm fixing assembly 3 includes a limiting base plate 3-1, a plurality of limiting parts x, and an attachment Figure 1 、 2 4. There are two limiting parts, namely the arm limiting part at the rear and the palm limiting part at the front.

[0028] The limiting portion includes an outer frame 3-2, an adjustment screw 3-3, and a limiting pressure plate 3-4. The outer frame 3-2 is mounted on the limiting base plate 3-1 and can be fixed or movable. The lower portion of the adjustment screw 3-3 passes through a threaded hole in the upper portion of the outer frame 3-2 and connects to the limiting pressure plate 3-4. By screwing the adjustment screw 3-3 in, the height of the limiting pressure plate 3-4 can be adjusted, and the limiting pressure plate 3-4 is fixed when pressed against the arm or palm.

[0029] Attachment Figure 2 、 4 The outer frame 3-2 includes two side panels 3-2-1, a top panel 3-2-2, and a bottom panel 3-2-3. The two side panels 3-2-1, the top panel 3-2-2, and the bottom panel 3-2-3 form a frame structure. Grooves 3-2-1-2 are provided at the bottom of the side panels 3-2-1. The two grooves are arranged opposite each other. The limiting bottom panel 3-1 is provided above the bottom panel 3-2-3, between the two grooves 3-2-1-2. This allows the outer frame 3-2 to be adjusted forward and backward relative to the limiting bottom panel 3-1. Threaded holes are provided in the grooves 3-2-1-2 of the side panels 3-2-1, and limiting bolts 3-2-1-3 are used to fix and limit the outer frame 3-2.

[0030] Furthermore, grooves or protrusions are provided on the opposite inner sides of the two side plates 3-2-1, and matching protrusions or grooves are provided at both ends of the limiting pressure plate 3-4 to limit the vertical movement of the limiting pressure plate 3-4. In the accompanying drawings, a groove 3-2-1-1 is provided on the side plate 3-2-1, and a protrusion is provided on the limiting pressure plate 3-4.

[0031] In order to improve the comfort when limiting the arm or palm, a groove is provided at the lower part of the limiting pressure plate 3-4.

[0032] Furthermore, the sizes of the outer frame 3-2, the adjustment screw 3-3 and the limiting pressure plate 3-4 of different limiting parts x can be different to adapt to the size of the arm and palm.

[0033] The measuring assembly 4 includes a pressure measuring device 4-1, a measuring base 4-2, and an adjustment slide 4-3. The measuring base 4-2 is fixed on the base 1, and the pressure measuring device 4-1 is connected to the measuring base 4-2 so as to be movable up and down through the adjustment slide 4-3.

[0034] As attached Figure 5 As shown, the adjustment slide 4-3 includes a slide seat 4-3-2, an adjustment slide body 4-3-3, and an adjustment limit nut 4-3-1. The slide seat 4-3-2 is fixed on the measuring base 4-2, and a vertically arranged protrusion or groove is provided on the side. The adjustment slide body 4-3-3 is provided with a vertically arranged groove or protrusion. The adjustment slide body 4-3-3 cooperates with the slide seat 4-3-2. In the accompanying drawings, the slide seat 4-3-2 is provided with a protrusion, and the adjustment slide body 4-3-3 is a groove. A through hole is provided on the side of the adjustment slide body 4-3-3, and the adjustment limit nut 4-3-1 cooperates with it to achieve the limitation of the adjustment slide body 4-3-3.

[0035] The adjustment slide 4-3 can also be a commercially available product, such as the attached Figure 6 As shown, in one embodiment, the applicant selected a dovetail gear rack slide produced by Kerui Precision Company.

[0036] The pressure measuring device 4-1 is fixed on the adjustment slide body 4-3-3 via a connecting angle plate 4-1-1.

[0037] The device is used as follows: S1. Fix the arm and palm with the palm fixing component 3, with the palm facing upward, and make the base of the fingertips flush with the front end of the palm fixing component 3; The specific process is as follows: The arm is passed through the outer frame 3-2 of the rear limiter, and after the fingers approach the pressure measuring device 4-1, the palm is restrained by the front limiter. The palm is passed through the outer frame 3-2 of the front limiter with the palm facing upward. The screw is rotated downward to firmly press the user's palm with appropriate force, so that the base of the proximal knuckle of the finger is flush with the front end surface 3-4-1 of the limiter plate 3-4. The position of the rear limiter is then adjusted to restrain the arm, and the limiter plate 3-4 of the rear limiter is set 0.5 to 1 cm behind the wrist. The screw is rotated downward to firmly press the user's wrist with appropriate force, preventing it from moving freely.

[0038] S2. Adjust the slide 2 so that the distal end of the finger knuckle to be measured is just below the pressure head of the pressure measuring instrument 4-1. Then lock the slide to prevent the arm and palm from moving. Then adjust the slide seat 4-3-2. Adjust the relative position of the slide body 4-3-3 so that the pressure head moves down and just touches the tip of the finger knuckle. Turn the locking knob to lock the adjustment slide position.

[0039] Specifically, the device can measure the flexion force of the metacarpophalangeal joint, proximal interphalangeal joint, and distal interphalangeal joint of the fingers respectively, and can evaluate the flexion force of each finger joint, and can perform targeted measurements on disabled patients with missing finger joints. Figure 7 As shown, when measuring the flexion force of the metacarpophalangeal joint, the pressure measuring device 4-1 is located at position a, and the pressure head contacts the fingertip at the distal end of the proximal phalanx of the finger; when measuring the flexion force of the proximal interphalangeal joint, the pressure measuring device 4-1 is located at position b, and the pressure head contacts the fingertip at the distal end of the middle phalanx of the finger; when measuring the flexion force of the distal interphalangeal joint, the pressure measuring device 4-1 is located at position c, and the pressure head contacts the fingertip at the distal end of the distal phalanx of the finger.

[0040] S3. Measurement of the flexion force of the knuckles. The subject lifts up his finger and pushes the pressure measuring device 4-1 to obtain the measurement value. Specifically, the subject lifts up his finger and continuously pushes the pressure measuring device 4-1 for 15 seconds, and records the instantaneous maximum value. Then, the subject rests for 30 seconds. Repeat the above action 3 times, and take the average value as the flexion force measurement value of this knuckle.

[0041] It should be noted that, unless otherwise expressly specified or limited, terms such as "installed," "connected," "connect," "fixed," and "set" should be understood broadly. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention or in the context of the present invention based on specific circumstances.

Claims

1. A finger joint flexion force measuring device, characterized in that: It includes a base, a slide, a palm fixing component, and a measuring component; the slide is set on the base, and the palm fixing component is set on the slide, which can realize horizontal XY sliding; the palm fixing component is provided with at least one limit part, and the measuring component is set on the base and includes a pressure measuring device, and the vertical upward and downward position of the pressure measuring device is adjustable.

2. The buckling force measuring device according to claim 1, characterized in that: The slide includes an XY bidirectional slide rail, a lower pad, and an upper pad. The XY bidirectional slide rail is fixed to the base through the lower pad, and the upper part of the XY bidirectional slide rail is connected to the palm fixing component through the upper pad.

3. The buckling force measuring device according to claim 1, characterized in that: The palm fixing assembly 3 includes a limiting base plate and two limiting parts; the limiting part includes an outer frame, an adjustment screw, and a limiting pressure plate; the outer frame is set on the base plate, and the lower part of the adjustment screw passes through the threaded hole on the upper part of the outer frame to connect to the limiting pressure plate.

4. The buckling force measuring device according to claim 3, characterized in that: The outer frame includes two side panels, a top panel, and a bottom panel. The two side panels, the top panel, and the bottom panel form a frame structure. Grooves are provided at the bottom of the side panels, and the two grooves are arranged opposite to each other. The limiting bottom panel is arranged at the upper part of the bottom panel, between the two grooves. A threaded hole is provided in the groove area of ​​the side panel, and the outer frame is fixed and limited by limiting bolts.

5. The buckling force measuring device according to claim 4, characterized in that: Grooves or protrusions are arranged on the opposite inner sides of the two side plates, and matching protrusions or grooves are arranged at both ends of the limiting pressure plate; a groove is arranged at the lower part of the limiting pressure plate.

6. The buckling force measuring device according to claim 1, characterized in that: The measuring assembly includes a pressure measuring device, a measuring base, and an adjusting slide. The measuring base is fixed on a base, and the pressure measuring device is connected to the measuring base via the adjusting slide so as to be movable up and down.

7. The buckling force measuring device according to claim 6, characterized in that: The adjustment slide includes a slide seat, an adjustment slide body, and an adjustment limit nut; the slide seat is fixed on the measuring base, and a vertically arranged protrusion or groove is provided on the side; the adjustment slide body is provided with a vertically arranged groove or protrusion, the adjustment slide body cooperates with the slide seat, and a through hole is provided on the side of the adjustment slide body, and the adjustment limit nut cooperates with it; the pressure measuring device is fixed to the adjustment slide body through a connecting angle plate.

8. A method for using the buckling force measuring device according to any one of claims 1 to 7, characterized in that: Includes the following steps S1. Fix the arm and palm with the palm fixing assembly, with the palm facing upwards, and make the base of the fingers flush with the front end of the palm fixing assembly; S2. Adjust the slide so that the distal end of the knuckle of the finger to be measured is directly below the pressure head of the pressure measuring device 4-1. Then adjust the slide base and the relative position of the slide body so that the pressure head moves downward and contacts the pad of the knuckle of the finger. S3. Measurement of knuckle flexion force: The subject lifts his finger upwards and pushes the pressure measuring device to obtain the measurement value.

9. The method for using the buckling force measurement device according to claim 8, characterized in that: Step S1 includes the following steps: passing the arm through the outer frame of the rear limiting part, after the fingers approach the pressure measuring device, limiting the palm through the front limiting part, passing the palm through the outer frame of the front limiting part with the palm facing up, rotating the screw downward, pressing the palm and making the base of the proximal knuckle of the finger flush with the front end surface of the limiting pressure plate, then adjusting the position of the rear limiting part to limit the arm, setting the limiting pressure plate of the rear limiting part at a position 0.5 to 1 cm behind the wrist, rotating the screw downward to press the wrist.

10. The method for using the buckling force measurement device according to claim 8, characterized in that: Step S2 includes the following steps: when measuring the flexion force of the metacarpophalangeal joint, the pressure measuring head contacts the fingertip at the distal end of the proximal phalanx of the finger; when measuring the flexion force of the proximal interphalangeal joint, the pressure measuring head contacts the fingertip at the distal end of the middle phalanx of the finger; when measuring the flexion force of the distal interphalangeal joint, the pressure measuring head contacts the fingertip at the distal end of the distal phalanx of the finger.

Images