Leg tap reaction tester

Abstract

The utility model relates to a leg tapping reaction tester in the technical field of knee jerk reaction detection equipment, comprising a chair and a tapping hammer. A tester sits on the top of the chair and taps his calf with the tapping hammer to perform a knee jerk reaction. Both sides of the bottom of the chair are provided with a front kick amplitude marking component for marking the degree of the tester's knee jerk reaction. The utility model uses the front kicking calf to pull a whiteboard pen to draw a line on a magnetic whiteboard, and uses a scale line to read the length of the line. The stronger the knee jerk reaction, the longer the line length, and vice versa, the weaker the knee jerk reaction, the shorter the line length. A doctor can intuitively read the length of the line through the scale line, and can know the strength of the tester's knee jerk reaction without multiple tests. The utility model can help doctors diagnose whether people's lower motor nerves are damaged, and the utility model will not apply a force to the tested calf, so as not to hinder the tester's calf from performing a front kicking action, which helps to ensure the accuracy of the test results.

Description

Technical Field

[0001] The utility model relates to the technical field of knee-jerk reaction detection equipment, in particular to a leg-beating reaction tester. Background Art

[0002] The knee jerk reaction is the main detection method used by neurosurgery to detect whether the lower motor neurons are damaged and whether the spinal cord and nerve roots are diseased. During the test, people are in a supine or sitting position. When the doctor taps the quadriceps tendon under the patella with a small hammer, the quadriceps muscle contracts once, and the calf kicks forward. The doctor makes a judgment by observing the amplitude of the calf kicking forward. If the knee tendon reflex is normal, the knee tendon reflexes on both sides are symmetrical. If one side is suddenly high, it means that the tendon reflex is hyperreflexia, which is caused by damage to the upper motor neurons. If the tendon reflex on one side is low, it means that the lower motor neurons are damaged and there are lesions in the spinal cord and nerve roots, which is called tendon reflex weakening on the opposite side.

[0003] Since the speed of the calf kicking forward is relatively fast under the knee jerk reaction, it is difficult for the doctor to remember the amplitude of the calf kicking forward at once. At this time, the doctor often needs to knock multiple times and make a judgment through multiple knee jerk reactions. At present, in order to reduce the number of times people are knocked, the Chinese patent with the prior art publication number CN209734451U uses the action of the calf kicking forward to pull the spring to reduce the pressure on the pressure sensor. As is known to all, the spring itself has a certain elastic force, so when the calf kicks forward, the spring will apply a backward force to the calf to hinder its forward kicking, which will eventually affect the amplitude of the calf kicking forward and easily affect the doctor's judgment. Moreover, the technical solution has a complex structure, resulting in high cost, and is not convenient for widespread promotion and use. Utility Model Content

[0004] In order to solve the problems that the existing technology proposed in the above background technology will exert force on the tester's calf, affecting the test accuracy and high manufacturing cost, the utility model provides the following technical solutions:

[0005] The leg tapping reaction tester comprises a chair and a tapping hammer. The tester sits on the top of the chair and taps the calf with the tapping hammer to perform a knee jerk reaction. Both sides of the bottom of the chair are provided with front kick amplitude marking components for marking the degree of the tester's knee jerk reaction. There are two front kick amplitude marking components, which are mirror-set.

[0006] Each of the front kick amplitude marking components includes a second support plate, the second support plate is fixed between two chair legs on one side of the bottom of the chair, a rectangular frame is passed through the interior of the second support plate, a hanging ring is fixed on one side of the rectangular frame extending into the bottom of the chair, a drawstring is tied to the outer end of the hanging ring, one end of the drawstring extends out of the front side of the chair and is fixed with an elastic calf sleeve;

[0007] A whiteboard pen is inserted on the side of the chair away from the hanging ring, and a magnetic whiteboard is embedded on the side wall of the second support plate facing the whiteboard pen. The tester kicks forward with his calf to pull the whiteboard pen through the pull rope and the rectangular frame to draw lines on the magnetic whiteboard. The bottom of the magnetic whiteboard is provided with scale lines for measuring the length of the lines on the magnetic whiteboard, and the scale lines are processed on the second side wall of the support plate.

[0008] Furthermore, the support plate 2 is provided with two strip-shaped holes, and the rectangular frame passes through the strip-shaped holes;

[0009] The rectangular frame is composed of two horizontal plates distributed up and down and two vertical plates distributed left and right. The two horizontal plates pass through two strip holes respectively. The top and bottom of the two horizontal plates are inlaid with rotatable balls, and the outer wall of the ball contacts the top end or the bottom end of the inner wall of the strip hole.

[0010] Furthermore, a through hole for a whiteboard pen to pass through is opened on a vertical plate of the rectangular frame, a butterfly bolt is threadedly connected to one side of the vertical plate, one end of the butterfly bolt passes through the vertical plate and contacts the outer wall of the whiteboard pen to fix the position of the whiteboard pen.

[0011] Furthermore, two limit baffles are fixed to the top and bottom of the two horizontal plates of the rectangular frame, and the limit baffles are in contact with the two outer walls of the support plate to limit the position of the rectangular frame.

[0012] Furthermore, an eraser for erasing lines on the magnetic whiteboard is provided on one side of the second outer wall of the support plate.

[0013] Furthermore, a circular iron sheet is embedded and fixed inside the side of the eraser facing the second support plate, and a circular magnet is embedded and fixed on the second side wall of the support plate. The circular magnet absorbs the circular iron sheet to fix the eraser on the second side wall of the support plate.

[0014] Furthermore, the calf sleeve is made of elastic material.

[0015] Furthermore, the chair is composed of a chair frame, a liftable seat, a pneumatic lifter, a handle and a support plate. The liftable seat is embedded in the chair frame, the pneumatic lifter is located in the middle of the bottom of the liftable seat, the handle is located on one side of the pneumatic lifter and is used to adjust the height of the liftable seat. The support plate is fixed between the four chair legs of the chair frame and is used to support the pneumatic lifter from the bottom.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. By using the calf that kicks forward to pull the whiteboard pen to draw a line on the magnetic whiteboard, and using the scale line to read the length of the line, the stronger the knee jerk reaction, the longer the line, and vice versa, the weaker the knee jerk reaction, the shorter the line. The doctor can intuitively read the length of the line through the scale line, and can know the strength of the tester's knee jerk reaction without multiple tests. The utility model can help doctors diagnose whether people's lower motor nerves are damaged, and the utility model will not apply force to the tested calf, so as not to hinder the tester's calf from kicking forward, which helps to ensure the accuracy of the test results.

[0018] 2. The utility model embeds two rotatable balls at the top and bottom of the two cross bars of the rectangular frame respectively, so as to reduce the friction resistance encountered by the rectangular frame during movement, so as to further avoid applying force to the calf of the tester and affecting the test result.

[0019] 3. The utility model can erase the lines marked on the magnetic whiteboard by using the provided eraser, which can facilitate the multiple use of the utility model and improve the utilization rate. Moreover, the utility model has a simple and exquisite structure, high practicality, and low manufacturing cost, and is suitable for promotion and use in various medical places. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the utility model when in use;

[0021] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 3 It is a structural schematic diagram of the front kick amplitude marking component of the utility model;

[0023] Figure 4 For the utility model Figure 3 Rear view of

[0024] Figure 5 It is a structural schematic diagram of the ball and the strip hole of the utility model.

[0025] In the accompanying drawings, the names of the components represented by the reference numerals are listed as follows:

[0026] 1. Chair; 11. Chair frame; 12. Lifting seat; 13. Air pressure lifter; 14. Handle; 15. Support plate 1;

[0027] 2. Front kick amplitude marking assembly; 21. Support plate 2; 22. Scale line; 23. Rectangular frame; 24. Whiteboard pen; 25. Hanging ring; 26. Pull rope; 27. Calf sleeve; 28. Magnetic whiteboard; 29. ​​Eraser; 210. Round iron sheet; 211. Round magnet; 212. Limit baffle; 213. Ball bearing; 214. Strip hole; 215. Through hole; 216. Butterfly bolt;

[0028] 3. Use hammer. DETAILED DESCRIPTION

[0029] The preferred specific implementation methods for implementing the present utility model are described in detail below, and a clear and complete description is made in conjunction with the accompanying drawings.

[0030] See also Figure 1 The utility model provides a leg tapping reaction tester, comprising a chair 1 and a tapping hammer 3. The tester sits on the chair 1 and taps the calf with the tapping hammer 3 to perform a knee jerk reaction. The doctor diagnoses the lower motor nerve of the tester by observing the intensity of the knee jerk reaction.

[0031] Moreover, the chair 1 in the utility model is composed of a chair frame 11, a lifting seat 12, a gas pressure lifter 13, a handle 14 and a support plate 15. The lifting seat 13 is embedded in the chair frame 11, the gas pressure lifter 13 is located at the middle position of the bottom of the lifting seat 12, and the support plate 15 is fixed between the four chair legs of the chair frame 11 to support the gas pressure lifter 13 from the bottom, because the legs of the tester need to be in a suspended state during the test, such as Figure 1 As shown, the utility model aims at the situation that the leg lengths of testers of different heights are different. The height of the lifting seat surface 12 is adjusted by the handle 14. The tester with longer legs can drive the lifting seat surface 12 to move up by operating the handle 14. Figure 1 The position shown is the lowest height of the lift seat surface 12 to accommodate testers with shorter legs.

[0032] During the test, in order to intuitively record the strength of the tester's knee jerk reaction, front kick amplitude marking components 2 for marking the degree of the tester's knee jerk reaction are provided on both sides of the bottom of the chair 1. There are two front kick amplitude marking components 2, and the two front kick amplitude marking components 2 are mirror-set to facilitate testing of the left and right legs of the tester, thereby expanding the scope of application of the utility model.

[0033] Specifically, Figure 2-5As shown, each of the front kick amplitude marking components 2 includes a supporting plate 21, the supporting plate 21 is fixed between two chair legs on one side of the bottom of the chair 1, a rectangular frame 23 is penetrated inside the supporting plate 21, two strip holes 214 are provided on the supporting plate 21, the rectangular frame 23 penetrates the strip holes 214, a hanging ring 25 is fixed on one side of the rectangular frame 23 extending into the bottom of the chair 1, a pull rope 26 is tied to the outer end of the hanging ring 25, one end of the pull rope 26 extends out of the front side of the chair 1 and is fixed with an elastic calf sleeve 27, the calf sleeve 27 in the utility model is made of elastic material, which can be one of elastic bands, rubber, etc., so that when using the utility model, the elasticity of the calf sleeve 27 itself is used to open the calf sleeve 27 so that it can be sleeved on the patient's calf ankle;

[0034] A whiteboard pen 24 is inserted on the side of the chair 1 away from the hanging ring 25, and a magnetic whiteboard 28 is inlaid on the side wall of the support plate 21 facing the whiteboard pen 24. The tester's calf kicks forward to pull the whiteboard pen 24 through the pull rope 26 and the rectangular frame 23 to draw a line on the magnetic whiteboard 28. The bottom of the magnetic whiteboard 28 is provided with a scale line 22 for measuring the length of the line on the magnetic whiteboard 28. The scale line 22 is processed on the side wall of the support plate 21. After the tester's knee is hit by the doctor using the hammer 3, Kick forward naturally. At this time, the calf will pull the rectangular frame 23 to move inside the bar hole 214 through the pull rope 26. The movement of the rectangular frame 23 will drive the whiteboard pen 24 to draw a line on the magnetic whiteboard 28. After the knee jerk reaction is over, the doctor can intuitively determine the length of the line by comparing the support board 21. The longer the line is, the stronger the knee jerk reaction of the tester is. Conversely, the shorter the line is, the weaker the knee jerk reaction of the tester is. This helps the doctor determine the intensity of the knee jerk reaction of the test and provides a basis for the doctor's diagnosis.

[0035] Moreover, the pull rope 26 of the utility model is a flexible rope, which will not exert a force on the tester's calf to hinder his forward kick, which helps to ensure the accuracy of the test results. Furthermore, the rectangular frame 23 of the utility model is composed of two horizontal plates distributed up and down and two vertical plates distributed left and right, and two limit baffles 212 are fixed on the top and bottom of the two horizontal plates of the rectangular frame 23. The limit baffles 212 are in contact with the outer wall of the support plate 21 and are used to limit the position of the rectangular frame 23. The two horizontal plates pass through two bar holes 214 respectively, and the top and bottom of the two horizontal plates are inlaid with rotatable balls 213. The outer wall of the ball 213 is in contact with the top end or the bottom end of the inner wall of the bar hole 214. The set ball 213 helps to reduce the friction force exerted on the rectangular frame 23 during movement, thereby further avoiding resistance on the tester's calf to ensure the accuracy of the test results.

[0036] In addition, an eraser 29 for erasing lines on the magnetic whiteboard 28 is provided on one side of the outer wall of the second support plate 21, and a circular iron sheet 210 is inlaid and fixed inside the eraser 29 on one side of the second support plate 21. A circular magnet 211 is inlaid and fixed on the side wall of the second support plate 21. The circular magnet 211 adsorbs the circular iron sheet 210 to fix the eraser 29 on the side wall of the second support plate 21. By using the eraser 29 to erase the lines on the magnetic whiteboard 28 and resetting the rectangular frame 23, the utility model can also be recycled, which can improve the utilization rate of the utility model, and, if Figure 3 As shown, a through hole 215 for a whiteboard pen 24 to pass through is provided on a vertical plate of the rectangular frame 23, and a butterfly bolt 216 is threadedly connected to one side of the vertical plate, and one end of the butterfly bolt 216 passes through the vertical plate and contacts the outer wall of the whiteboard pen 24. The whiteboard pen 24 can be easily disassembled or installed by rotating the butterfly bolt 216, so that the whiteboard pen 24 can be replaced after use, so as to further enhance the utilization rate and practicality of the utility model. The utility model has a simple and exquisite structure, high practicality, low manufacturing cost, and is also suitable for promotion and use in various medical places.

[0037] Based on the above content and the accompanying drawings, those skilled in the art can understand and implement the utility model. In addition, any non-creative modifications made to the utility model by those skilled in the art without making creative work still fall within the scope of protection of the utility model.

Claims

1. A leg tapping reaction tester, comprising a chair (1) and a tapping hammer (3), wherein a tester sits on the top of the chair (1) and taps the calf with the tapping hammer (3) to perform a knee jerk reaction, wherein: Both sides of the bottom of the chair (1) are provided with front kick amplitude marking components (2) for marking the degree of the test subject's knee jerk reaction, and there are two front kick amplitude marking components (2), and the two front kick amplitude marking components (2) are arranged in a mirror image; Each of the front kick amplitude marking components (2) comprises a second support plate (21), the second support plate (21) being fixed between two chair legs on one side of the bottom of the chair (1), a rectangular frame (23) running through the interior of the second support plate (21), a hanging ring (25) being fixed on one side of the rectangular frame (23) extending into the bottom of the chair (1), a drawstring (26) being tied to the outer end of the drawstring (25), one end of which extends out of the front side of the chair (1) and is fixed with an elastic calf sleeve (27); A whiteboard pen (24) is inserted into the side of the chair (1) away from the hanging ring (25), and a magnetic whiteboard (28) is embedded on the side wall of the second support plate (21) facing the whiteboard pen (24). The tester's calf kicks forward to pull the whiteboard pen (24) through the pull rope (26) and the rectangular frame (23) to draw a line on the magnetic whiteboard (28). The bottom of the magnetic whiteboard (28) is provided with a scale line (22) for measuring the length of the line on the magnetic whiteboard (28), and the scale line (22) is processed on the side wall of the second support plate (21).

2. The leg tapping reaction tester according to claim 1, characterized in that: The second support plate (21) is provided with two strip-shaped holes (214), and the rectangular frame (23) passes through the strip-shaped holes (214); The rectangular frame (23) is composed of two horizontal plates distributed vertically and two vertical plates distributed horizontally. The two horizontal plates respectively penetrate two strip holes (214). The top and bottom of the two horizontal plates are inlaid with rotatable balls (213). The outer wall of the ball (213) contacts the top end or the bottom end of the inner wall of the strip hole (214).

3. The leg tapping reaction tester according to claim 2, characterized in that: A through hole (215) for a whiteboard pen (24) to pass through is provided on a vertical plate of the rectangular frame (23), and a butterfly bolt (216) is threadedly connected to one side of the vertical plate. One end of the butterfly bolt (216) passes through the vertical plate and contacts the outer wall of the whiteboard pen (24) to fix the position of the whiteboard pen (24).

4. The leg tapping reaction tester according to claim 2, characterized in that: Two limit baffles (212) are fixed on the top and bottom of the two horizontal plates of the rectangular frame (23); the limit baffles (212) are in contact with the outer wall of the second supporting plate (21) and are used to limit the position of the rectangular frame (23).

5. The leg tapping reaction tester according to claim 1, characterized in that: An eraser (29) for erasing lines on the magnetic whiteboard (28) is provided on one side of the outer wall of the second support plate (21).

6. The leg tapping reaction tester according to claim 5, characterized in that: A circular iron sheet (210) is embedded and fixed inside the side of the eraser (29) facing the second support plate (21), and a circular magnet (211) is embedded and fixed on the side wall of the second support plate (21). The circular magnet (211) absorbs the circular iron sheet (210) to fix the eraser (29) on the side wall of the second support plate (21).

7. The leg tapping reaction tester according to claim 1, characterized in that: The calf sleeve (27) is made of elastic material.

8. The leg tapping reaction tester according to claim 1, characterized in that: The chair (1) is composed of a chair frame (11), a liftable seat (12), a gas pressure lifter (13), a handle (14) and a support plate (15); the liftable seat (12) is embedded in the chair frame (11); the gas pressure lifter (13) is located at the middle of the bottom of the liftable seat (12); the handle (14) is located on one side of the gas pressure lifter (13) and is used to adjust the height of the liftable seat (12); and the support plate (15) is fixed between four chair legs of the chair frame (11) and is used to support the gas pressure lifter (13) from the bottom.

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