Device for testing extensor group behind cervical vertebra

Abstract

The utility model relates to a cervical vertebra posterior extensor group testing device, which comprises a main machine part arranged on a supporting surface and used as a main body structure of the testing device; the force measuring part is located on the side, away from the supporting face, of the back face of the main machine part, and a dynamometer for testing a subject is detachably installed on the force measuring part; and the fixing part is positioned on one side, close to the supporting surface, of the back surface of the host part, and is provided with a fixing sucker for fixing the host part. The force measuring part is provided with a hollow window for observation and operation of the dynamometer, the fixing part is provided with a retracting and releasing mechanism, and the retracting and releasing mechanism is used for releasing or storing the fixing suction cup so as to fix the main machine part on the supporting surface or release the main machine part from the supporting surface. According to the testing device, the folding and unfolding mechanism is arranged in the fixing part, medical staff can conveniently release or store the fixing suction cup, and therefore locking and unlocking of the testing device are achieved, the testing device is made to have flexibility and stability at the same time, and the application range is wider.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a test device for the posterior cervical extensor muscles. Background Art

[0002] With the popularization of computers and smart phones, the life and work styles of modern people have changed significantly. More and more people seek medical help due to cervical discomfort and neck pain symptoms, and neck pain has become a common problem. Research shows that the lesions of the muscles related to the cervical spine play a crucial role in the occurrence and development of cervical spondylosis. The weakening of the muscle strength around the cervical spine will damage the dynamic balance system of the cervical spine, resulting in the cervical spine being unable to maintain its normal physiological curvature, and then causing changes in the cervical curvature. Therefore, timely identification of insufficient neck muscle strength helps to predict the risk of cervical spondylosis and take early intervention measures.

[0003] In order to evaluate the strength of neck muscles, isometric contraction exercise can be used to detect muscle strength, which is an important method for evaluating muscle physiological functions. Handheld isometric myometers are widely used at present due to their flexible and convenient characteristics. However, when measuring neck muscle groups, medical staff need to hold the isometric myometer against the test site of the subject. During the test, if the tester's strength is too large, the digital myometer will be pushed backward, or if the medical staff's strength is too large, the myometer will be pushed forward, making it difficult for the tester and the subject to maintain a balanced state during the force application process. This will cause the measured value of the myometer to deviate from the actual value, increasing the measurement error and making it difficult for medical staff to know the true situation of the subject's neck muscle strength, and unable to accurately intervene and guide. In addition, when using a handheld instrument for testing, in order to prevent the myometer from shifting during the test, medical staff need to apply enough force for support. Sometimes, in order to obtain an accurate stable value, repeated measurements are also required, which also increases the labor intensity of medical staff.

[0004] In the prior art, a patent document with the publication number CN210644047U proposed a neck muscle strength testing device, which can replace medical staff holding a dynamometer to conduct muscle strength testing on subjects. The testing device is connected to a rigid support on the ground so that the dynamometer can remain stationary during testing, thereby improving the measurement accuracy. However, such a setting method also has its limitations, that is, the device can only be installed on a ground with a rigid support, which means that the device has poor flexibility and is difficult to move freely, and is not very suitable for inpatients who are inconvenient to move around in each ward. In addition, limited by the installation form of multiple dynamometers arranged in multiple directions of the subject's head in the device, at least some of the dynamometers are difficult to read conveniently due to the occlusion of the subject's head and the testing device, which hinders the medical staff from observing and recording the test data.

[0005] In addition, on the one hand, there are differences in the understanding of those skilled in the art; on the other hand, although the applicant has studied a large number of documents and patents when making this utility model, all the details and contents are not listed in detail due to space limitations. However, this does not mean that this utility model does not possess the features of these prior arts. On the contrary, this utility model already possesses all the features of the prior arts, and the applicant reserves the right to add relevant prior arts in the background art. Summary of the Utility Model

[0006] Aiming at the deficiencies of the prior art, this application proposes a testing device for the posterior cervical extensor muscles, especially a testing device for the posterior cervical extensor muscles with simple operation and high flexibility, aiming to solve one or more technical problems in the prior art.

[0007] The neck muscle testing devices in the prior art are difficult to move freely due to their large volume, complex structure, and poor flexibility, and are not suitable for testing inpatients and patients with limited mobility. Even if the prior art has considered setting rollers at the bottom of the testing device to facilitate its movement, it is also easy to think of setting a locking component on the rollers to enable the testing device to perform the fixing function. However, neck muscle testing requires the subject to apply neck strength to the testing device as much as possible to obtain relatively accurate measurement values. In such a testing scenario, since the locking component of the roller only prevents the testing device from moving by restricting the free rolling of the roller, and in order to meet the requirement of convenient movement, the testing device is designed to reduce its volume and weight consciously. Therefore, relying only on the friction between the roller and the ground cannot provide sufficient grip for the relatively light testing device, and the force applied by the subject to the testing device will cause the testing device to still slip or even tip over in the state where the roller is locked, thereby affecting the accuracy of the testing results. Therefore, there is a lack of a neck muscle testing device in the prior art that can be conveniently moved and also has a structure that provides additional grip during testing to maintain a stable fixed state.

[0008] Therefore, in view of the above technical problems, the present utility model provides a cervical posterior extensor muscle testing device, including: a main body part, which is placed on a support surface and serves as the main structure of the testing device; a force measuring part, which is located on the side of the back of the main body part away from the support surface and is detachably installed with a dynamometer for testing the subject; a fixing part, which is located on the side of the back of the main body part close to the support surface and is provided with a fixing suction cup for fixing the main body part. The fixing part is provided with a retracting and releasing component for releasing and storing the fixing suction cup. The retracting and releasing component is connected to the back of the fixing suction cup, and it can drive the fixing suction cup to perform a flipping movement close to or away from the support surface under the drive of human or mechanical force, and fix the main body part on the support surface or release it from the support surface by the way that the front surface of the fixing suction cup contacts or leaves the support surface.

[0009] Through the setting of the retracting and releasing mechanism, medical staff can conveniently release or store the fixing suction cup, thereby realizing the locking and unlocking of the testing device. The testing device can not only be unlocked as needed to move to the position where the subject is located, with high flexibility, but also be locked during the testing of the subject to maintain a stable testing posture, ensuring the accuracy and stability of the testing.

[0010] According to a preferred embodiment, the force measuring part includes a fixed plate for placing the dynamometer, and a fixed cover with a hollow window on the top is connected to the fixed plate in an openable and closable manner, and an internal cavity for accommodating the dynamometer is formed between the fixed plate and the fixed cover. Since the fixed plate and the fixed cover are openable and closable, the dynamometer can be easily placed in or taken out of the internal cavity surrounded by the two, and the replacement and maintenance of the dynamometer are more convenient. In addition, the internal cavity surrounded by the two also limits the activity space of the dynamometer, avoiding errors in the test results of the subject due to the movement of the dynamometer itself.

[0011] According to a preferred embodiment, the force measuring part includes a neck ring in contact with the subject's neck, and a connecting rod is provided on the side of the neck ring away from the subject's neck, and the connecting rod passes through a through hole provided in the side wall of the fixed cover and is connected to the dynamometer. The neck ring matches the shape of the subject's neck, ensuring the comfort of the subject's neck during the test, and at the same time, the neck ring transmits the pressure applied by the subject to the dynamometer through the connecting rod, so that the dynamometer can display corresponding test data.

[0012] According to a preferred embodiment, the force measuring part includes a sliding assembly built into the main body part, and the fixed plate is connected to the sliding assembly through connecting plates arranged at the bottom and end thereof, so that the dynamometer can adjust the height with the help of the sliding assembly. The sliding assembly includes a slide rail with a vertical slide groove, and a slider is slidably connected to the slide groove, and the slider is connected to the fixed plate through the connecting plate. The setting of the sliding assembly can adjust the height of the dynamometer, so that the test device can be adaptively adjusted according to the height of the subject to ensure that the neck ring in the force measuring part can fit the neck position of the subject.

[0013] According to a preferred embodiment, the retractable assembly of the fixed part includes a fixed seat arranged on the back of the main body part and a rotating shaft rotatably connected to the fixed seat, a rotating block is arranged on the circumferential side wall of the rotating shaft, and the rotating block is connected to the fixed suction cup through a fixed bracket so that the fixed suction cup can be flipped around the rotating shaft. The arrangement of the retractable assembly allows the fixed suction cup to be stored and released by means of rotation, which is easy to operate, improves the efficiency of locking and unlocking the test device, and thus ensures the stability and reliability of the test results.

[0014] According to a preferred embodiment, the main unit includes an equipment body serving as the outer shell of the testing device, and an operating table is provided on the front side of the equipment body away from the supporting surface, on which an analyzer for displaying measurement data and operating buttons for adjusting the height of the dynamometer are provided.

[0015] According to a preferred embodiment, an access opening for device placement and maintenance is provided on one side of the front of the device main body close to the support surface, and self-locking universal casters for facilitating the movement of the testing device on the support surface are also provided at the bottom of the device main body. The setting of the universal casters can facilitate the movement of the testing device, and because it has a self-locking function, it can jointly fix the testing device with the fixed suction cups in the fixing part, so as to provide double guarantee and improve the stability of the device.

[0016] According to a preferred embodiment, a communication interface for transmitting data to an analyzer or an external device is provided beside the operation button, and the data cable connected to the communication interface passes through a reserved wire groove inside the fixed cover and is electrically connected to the dynamometer. The communication interface can export the data of the dynamometer, so that the data can be selectively transmitted to the analyzer on the operation table or an external analysis device according to the needs of medical staff, so as to achieve different test purposes.

[0017] According to a preferred embodiment, the testing device further includes a seat located below the force measuring part, and a backrest that can keep the back of the subject upright is provided on the seat. The backrest is used to limit the sitting posture of the subject, so that the upper body of the subject maintains a sitting posture perpendicular to the support surface, and to avoid the test error caused by the backward tilt of the upper body trunk of the subject during the test of the neck muscles. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural view of the testing device of the present utility model from the back view;

[0019] Figure 2 is a schematic structural view of the testing device of the present utility model from the front view;

[0020] Figure 3 is a schematic structural view of the force measuring part of the testing device of the present utility model;

[0021] Figure 4 is a schematic structural view of the fixing part of the testing device of the present utility model.

[0022] LIST OF REFERENCE NUMERALS

[0023] 100: Main unit; 110: Equipment body; 120: Analyzer; 130: Up button; 140: Down button; 150: Communication interface; 160: Maintenance opening; 170: Universal caster; 200: Force measurement unit; 210: Force gauge; 220: Neck ring; 230: Fixed plate; 240: Fixed cover; 250a: First connecting plate; 250b: Second connecting plate; 260: Connecting rod; 270: Slide block; 280: Slide rail; 290: Driving motor; 300: Fixing unit; 310: Fixed suction cup; 320: Fixed bracket; 330: Rotating block; 340: Rotating shaft; 350: Fixed seat. Detailed implementation manners

[0024] The present utility model will be described in detail below with reference to the accompanying drawings.

[0025] The present utility model relates to a cervical posterior extensor muscle testing device for testing the strength of the cervical extensor muscles of a subject, such as Figure 1 , Figure 3 , Figure 4 As shown, it includes three parts, namely: a main unit 100 placed on a support surface (such as the ground) and serving as the main structure of the testing device; a force measurement unit 200 located on the side of the back of the main unit 100 away from the support surface and detachably installed with a force gauge 210 for testing the subject; and a fixing unit 300 located on the side of the back of the main unit 100 close to the support surface and provided with a fixed suction cup 310 for fixing the main unit 100. During the testing process, the subject sits with his back to the force measurement unit 200, places his neck against the force measurement unit 200, and then straightens his neck or applies a slightly backward force, so that the force measurement unit 200 can obtain the measurement value of the isometric contraction of the cervical posterior extensor muscles of the subject.

[0026] Preferably, as Figure 3 shown, the force measurement unit 200 includes a fixed plate 230 for placing the force gauge 210, and a fixed cover 240 with a hollow window opened at the top is connected to the fixed plate 230 in an openable and closable manner. An internal cavity for placing the force gauge 210 is formed between the fixed plate 230 and the fixed cover 240. Since the fixed plate 230 and the fixed cover 240 are arranged to be openable and closable, the force gauge 210 can be relatively easily placed into or taken out from the internal cavity surrounded by the two, and the replacement and maintenance of the force gauge 210 are more convenient. In addition, the inside of the fixed cover 240 has a structure matching the shape of the force gauge 210, so the internal cavity surrounded by the fixed cover 240 and the fixed plate 230 can also limit the movement space of the force gauge 210, so that the force gauge 210 is fixed after being placed in the internal cavity, avoiding errors in the test results of the subject due to the movement of the force gauge 210 itself.

[0027] Preferably, as Figure 3As shown, the force measuring part 200 further includes a neck ring 220 that can come into contact with the subject's neck. The neck ring 220 is arc-shaped, and the concave side of the arc can abut against the subject's neck. This side can be made of a soft and elastic material to better adapt to the shape of the subject's neck and improve the comfort of the subject's neck during the test. The convex side of the arc faces away from the subject's neck, and a connecting rod 260 is provided thereon. The connecting rod 260 passes through a through hole opened in the side wall of the fixed cover 240 and is connected to the force gauge 210. With the help of the connecting rod 260, the neck ring 220 can transmit the pressure applied by the subject to the force gauge 210, so that the force gauge 210 can display the test data.

[0028] Preferably, as Figure 1 , Figure 3 As shown, the force measuring part 200 is further provided with a sliding assembly built in the main body part 100. The sliding assembly includes a slide rail 280 provided with a vertical chute and a slider 270 slidably connected to the chute. The fixed plate 230 is connected to the slider 270 through a first connecting plate 250a provided at its bottom and a second connecting plate 250b provided at the end away from the neck ring 220. The first connecting plate 250a supports the fixed plate 230 in a manner similar to an arch structure, and one side of the second connecting plate 250b is connected to both the first connecting plate 250a and the fixed plate 230, and the other side is fixedly provided on the slider 270. Such a design enables the force gauge 210 to slide controllably on the vertically arranged slide rail 280 driven by a driving motor 290 provided in the main body part 100 to achieve height adjustment. The test device can be adaptively adjusted according to the height of the subject to ensure that the neck ring 220 in the force measuring part 200 can fit the position of the subject's neck.

[0029] Preferably, as Figure 1 , Figure 4As shown, the retractable assembly of the fixing part 300 includes a fixing seat 350 disposed on the back of the host part 100 and a rotating shaft 340 rotatably connected to the fixing seat 350. A rotating block 330 is disposed on the circumferential side wall of the rotating shaft 340. The rotating block 330 is connected to the fixing suction cup 310 through a fixing bracket 320, so that the fixing suction cup 310 can be turned around the rotating shaft 340. Preferably, the structural block disposed on the back of the fixing suction cup 310 can be in the form of a hook or other structural matching or a magnetic matching form so that the fixing suction cup 310 can be stably stored on the back of the host part 100 when the test device does not need to be fixed to the support surface, so as to prevent the fixing suction cup 310 from falling off during the movement of the test device. Further preferably, small motors can be provided at both ends of the rotating shaft 340 to drive the rotating shaft 340 to realize the flipping movement of the fixed suction cup 310 around the rotating shaft 340, so that when the test device needs to be fixed, the front side of the fixed suction cup 310 can be driven to contact the supporting surface, and when the test device needs to be moved, the front side of the fixed suction cup 310 can be driven to separate from the supporting surface.

[0030] Preferably, if Figure 2 , Figure 3 As shown, the host part 100 includes a device body 110 as a shell of the test device, and an operation table is arranged on the side of the front of the device body 110 away from the support surface, and an analyzer 120 for displaying measurement data and an operation button for adjusting the height of the dynamometer 210 are arranged on the operation table, wherein the operation button may include an up button 130 and a down button 140 that can be electrically connected to the drive motor 290. The up button 130 and the down button 140 respectively control the forward and reverse rotation of the drive motor 290, thereby realizing the lifting and lowering operation of the dynamometer 210.

[0031] Preferably, if Figure 2 As shown, a maintenance port 160 for equipment placement and maintenance is provided on the front side of the equipment body 110 near the support surface, and a self-locking universal caster 170 is provided at the bottom of the equipment body 110 to facilitate the movement of the test device on the support surface. The locking mechanism on the universal caster 170 and the fixing function of the fixing suction cup 310 of the fixing part 300 provide double protection for the stability of the test device, so that the test device will not move due to the force applied by the subject, thereby ensuring the accuracy of the test results.

[0032] Preferably, if Figure 2 , Figure 3As shown, a communication interface 150 for transmitting data to the analyzer 120 or an external device is provided next to the up button 130 and the down button 140, and the data line connected to the communication interface 150 passes through the reserved wire groove set inside the fixed cover 240 and communicates with the dynamometer 210. The communication interface 150 can not only be connected to the analyzer 120 provided by the test device, but also the medical staff can connect the external analysis equipment with different analysis software and hardware to the communication interface 150 as needed to make an analysis direction different from that of the test device. Preferably, the analyzer 120 provided by the test device and the external analysis equipment can be a computer with data statistics and processing function software, which can draw the data measured by the dynamometer 210 into a force-time curve in real time and synchronously, and can annotate and save the curve graph. It should be noted that the software with data statistics and processing functions in the computer here can be Tableau, SPSS, etc. The utility model does not involve improvements to software and algorithms, and complies with the provisions of the patent law on the object of utility model protection.

[0033] Preferably, if Figure 1 , Figure 2 As shown, the test device also includes a seat located below the force measuring part 200, and the seat is provided with a backrest that can keep the subject's back upright. The backrest is used to limit the subject's sitting posture so that the subject's upper body remains perpendicular to the supporting surface, avoiding the test error caused by the subject's upper body trunk leaning back during the test of the neck muscles. Preferably, the model of the seat can be adaptively selected according to the height of the subject to ensure that the height of the seat back will not interfere with the measurement of the subject's neck extensor muscles.

[0034] It should be noted that the above specific embodiments are exemplary, and those skilled in the art can come up with various solutions inspired by the disclosure of the utility model, and these solutions also belong to the disclosure scope of the utility model and fall within the protection scope of the utility model. Those skilled in the art should understand that the utility model specification and its drawings are illustrative and do not constitute a limitation on the claims. The scope of protection of the utility model is defined by the claims and their equivalents. Throughout the text, the features guided by "preferably" are only an optional method and should not be understood as having to be set, so the applicant reserves the right to abandon or delete the relevant preferred features at any time.

Claims

1. A cervical spine posterior extensor muscle group testing device, characterized in that: include: A host part (100), which is placed on a support surface and serves as the main structure of the testing device; A force measuring part (200), which is located on a side of the back of the main unit (100) away from the support surface and is detachably mounted with a force gauge (210) for testing a subject; The force measuring part (200) comprises a fixing plate (230) for placing the force gauge (210), a fixing cover (240) with a hollow window on the top of which is openably connected to the fixing plate (230), and an internal cavity for placing the force gauge (210) is formed between the fixing plate (230) and the fixing cover (240). The force measuring part (200) comprises a neck ring (220) in contact with the neck of a subject, a connecting rod (260) is provided on the side of the neck ring (220) facing away from the neck of the subject, and the connecting rod (260) passes through a through hole provided in the side wall of the fixing cover (240) and is connected to the force gauge (210).

2. The testing device according to claim 1, characterized in that: The invention comprises a fixing part (300) located on one side of the back side of the main unit (100) close to the supporting surface, the fixing part (300) being provided with a fixing suction cup (310) for fixing the main unit (100) and a retractable assembly for releasing and receiving the fixing suction cup (310), the retractable assembly being connected to the back side of the fixing suction cup (310), and the retractable assembly being able to drive the fixing suction cup (310) to perform a flipping movement close to or away from the supporting surface under human or mechanical drive, and fixing the main unit (100) on the supporting surface or releasing it from the supporting surface in a manner that the front side of the fixing suction cup (310) contacts the supporting surface or leaves the supporting surface.

3. The testing device according to claim 2, characterized in that: The force measuring part (200) comprises a sliding assembly built into the main body part (100), and the fixing plate (230) is connected to the sliding assembly via connecting plates arranged at the bottom and end of the fixing plate, so that the force gauge (210) can adjust the height with the help of the sliding assembly.

4. The testing device according to claim 3, characterized in that: The sliding assembly comprises a sliding rail (280) provided with a vertical sliding groove, a sliding block (270) is slidably connected to the sliding groove, and the sliding block (270) is connected to the fixing plate (230) via the connecting plate.

5. The testing device according to claim 4, characterized in that: The connecting plate includes a first connecting plate (250a) and a second connecting plate (250b), wherein the first connecting plate (250a) is connected to the bottom of the fixing plate (230) to support the fixing plate (230), and the second connecting plate (250b) is fixedly connected to the first connecting plate (250a) and an end of the fixing plate (230) away from the neck ring (220).

6. The testing device according to claim 2, characterized in that: The retractable assembly of the fixed part (300) comprises a fixed seat (350) arranged on the back of the main unit (100) and a rotating shaft (340) rotatably connected to the fixed seat (350), a rotating block (330) is arranged on the circumferential side wall of the rotating shaft (340), and the rotating block (330) is connected to the fixed suction cup (310) through a fixed bracket (320) so that the fixed suction cup (310) can be turned around the rotating shaft (340).

7. The testing device according to claim 2, characterized in that: The host unit (100) comprises a device body (110) serving as a shell of the test device, and an operation table is provided on a front side of the device body (110) away from a support surface, and an analyzer (120) for displaying measurement data and an operation button for adjusting the height of the dynamometer (210) are provided on the operation table.

8. The testing device according to claim 7, characterized in that: A maintenance opening (160) for equipment placement and maintenance is provided on the front side of the equipment body (110) close to the support surface, and a self-locking universal caster (170) is provided at the bottom of the equipment body (110) to facilitate the movement of the test device on the support surface.

9. The testing device according to claim 7, characterized in that: A communication interface (150) for transmitting data to the analyzer (120) or an external device is provided next to the operation button, and a data line connected to the communication interface (150) passes through a wire groove reserved inside the fixed cover (240) and is electrically connected to the dynamometer (210).

10. The testing device according to claim 1, characterized in that: The testing device also comprises a seat located below the force measuring part (200), and the seat is provided with a backrest capable of keeping the back of the test subject upright.

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