Device for measuring Parkinson's muscle stiffness

Abstract

The device comprises a horizontal sliding rail, the horizontal sliding rail is in sliding connection with a sliding sleeve sliding in the length direction of the horizontal sliding rail, one end of the horizontal sliding rail is provided with a driving motor used for driving the sliding sleeve to slide, the upper end of the sliding sleeve is provided with a connecting base, and the upper end of the connecting base is rotationally connected with a test board; a rotating shaft perpendicular to the length direction of the horizontal sliding rail is horizontally arranged at the lower end of the test board, a lantern ring rotationally connected with the rotating shaft is arranged in the middle of the connecting seat, first pressure sensors are arranged at the two sides of the rotating shaft at the upper end of the connecting seat, and the upper end of each first pressure sensor is in contact with the lower end of the test board; the upper end of the test board is upwards provided with a vertical connecting disc, one side of the vertical connecting disc is connected with a traction strip, the traction strip is connected with a holding handle, and the holding handle is parallel to the traction strip. According to the invention, a doctor is replaced to automatically carry out quantitative analysis on the muscle tension of the patient, so that a more scientific and reliable diagnosis basis is provided.

Description

Technical Field

[0001] The present invention relates to the technical field of medical auxiliary equipment, and in particular to a device for measuring Parkinson's myotonia. Background Art

[0002] Parkinson's disease (PD) is a common neurodegenerative disease, the main pathological features of which are the loss of dopaminergic neurons in the substantia nigra and the formation of Lewy bodies. Parkinson's patients often show symptoms such as resting tremor, bradykinesia, postural instability and muscle rigidity. Among them, muscle rigidity refers to the increase in resistance of muscles during passive movement, and this resistance is independent of the speed of movement, presenting a feeling similar to a lead pipe or a gear, which brings great inconvenience to patients' daily lives.

[0003] Currently, the diagnosis of Parkinson's disease myotonia usually relies on the experience and judgment of clinicians. The doctor will ask the patient to remain relaxed, then manually pull the patient's limbs to move, and assess the degree of myotonia based on the amount of resistance felt. However, this method has certain limitations: first, the test results are highly dependent on the doctor's subjective experience, and there may be large differences between different doctors; second, since manual operation is difficult to accurately control the speed and strength, it is difficult to ensure the consistency and objectivity of each test. Summary of the invention

[0004] The purpose of the present invention is to provide a device for measuring Parkinson's myotonia, which can automatically and quantitatively analyze the muscle tension of patients instead of doctors, thereby providing a more scientific and reliable basis for diagnosis.

[0005] The above technical purpose of the present invention is achieved through the following technical solutions: a device for measuring Parkinson's muscle rigidity, comprising a horizontal slide rail, the horizontal slide rail is slidably connected with a sleeve sliding along its length direction, one end of the horizontal slide rail is installed with a driving motor for driving the sleeve to slide, the upper end of the sleeve is provided with a connecting seat, the upper end of the connecting seat is rotatably connected with a test bench, the lower end of the test bench is horizontally provided with a rotating shaft perpendicular to the length direction of the horizontal slide rail, the middle part of the connecting seat is provided with a collar rotatably connected to the rotating shaft, the upper end of the connecting seat is provided with first pressure sensors on both sides of the rotating shaft, and the upper end of each first pressure sensor is in contact with the lower end of the test bench;

[0006] The upper end of the test bench is provided with a vertical connecting disk upwardly, and a connecting hole is opened in the middle of the vertical connecting disk along the length direction of the rotating shaft, and traction bars and rotating disks are rotatably connected on both sides of the vertical connecting disk, and the traction bars are connected with gripping handles, and the gripping handles are arranged parallel to the traction bars. The test bench is equipped with a rotating motor for driving the rotating disk to rotate, and the traction bar extends into the connecting hole and is provided with a first rotating bar rotatably connected to its inner wall, and the rotating disk extends into the connecting hole and is provided with a second rotating bar rotatably connected to its inner wall and arranged opposite to the first rotating bar, the cross-sections of the first rotating bar and the second rotating bar are both smaller than a semicircle, and the first rotating bar and the second rotating bar are rotatably connected at the axis of the connecting hole, and two second pressure sensors are arranged opposite to each other between the first rotating bar and the second rotating bar.

[0007] By adopting the above technical solution, when the patient is tested for Parkinson's myotonia, the patient holds the gripping handle with one hand, and then keeps it relaxed as much as possible, and does not actively resist the traction force. The drive motor drives the sliding sleeve to move back and forth horizontally, thereby providing uniform traction force to pull the test bench back and forth. The gripping handle evenly pulls the patient's arm to swing. During the movement to one side, the resistance of the arm will cause the test bench to have a tilting pressure in the opposite direction of the movement, and the pressure changes of the movement on both sides are respectively detected by two first pressure sensors;

[0008] After the left and right traction test, the rotation traction test is then performed. During the process, the rotating motor drives the rotating disk to rotate back and forth left and right, and the rotating disk then drives the gripping handle to rotate back and forth left and right through the connection between the first rotating bar and the second rotating bar, and finally the traction arm rotates back and forth left and right;

[0009] When moving their limbs, patients with Parkinson's myotonia will feel a uniform resistance, just like trying to turn an object fixed by a lead pipe. In addition to the uniform resistance, there is also an intermittent "stuttering" phenomenon, which makes the passive movement feel like rotating a part with gears. Unlike normal conditions or other types of dystonia, the resistance generated by the myotonia of Parkinson's patients will not decrease or increase as the speed of passive movement increases. Combined with this feature, the pressure data detected by the first pressure sensor and the second pressure sensor are used to comprehensively judge the condition.

[0010] The present invention is further configured as follows: a slide groove with an opening on one side is provided in the horizontal slide rail, a driving screw is rotatably connected in the slide groove, a power output shaft of the driving motor is connected to one end of the driving screw, and the sliding sleeve extends into the slide groove and is provided with a screw sleeve that cooperates with the driving screw.

[0011] The present invention is further configured as follows: a cable drag chain connected to one end of the horizontal slide rail is provided on one side of the horizontal slide rail, the free end of the cable drag chain is connected to the test bench, and the cable drag chain is used for power supply and signal transmission of the first pressure sensor, the rotating motor, and the second pressure sensor.

[0012] The present invention is further configured as follows: a support platform is provided on the horizontal side below the cable drag chain.

[0013] The present invention is further configured as follows: a worm gear is provided on the outer periphery of the rotating disk, and a worm meshing with the worm gear is connected to the power output shaft of the rotating motor.

[0014] The present invention is further configured as follows: the first rotating bar is connected to a connecting shaft arranged along the axis of the connecting hole, and the second rotating bar is connected to a connecting sleeve rotatably connected to the connecting shaft.

[0015] In summary, the present invention has the following beneficial effects:

[0016] The present invention can automatically pull the patient's arm to move back and forth along the horizontal slide rail, and rotate back and forth with the rotating disk. During the left and right movement, the first pressure sensor on one side can be pressurized to detect the resistance during traction. When rotating back and forth, the second pressure sensor on the same side can be pressurized to detect the resistance during traction. By analyzing the pressure data, the patient's condition can be comprehensively judged. Compared with the doctor's experience judgment, it can provide a more scientific and reliable diagnosis basis, and also provide the possibility for the evaluation of subsequent treatment effects, improve detection accuracy, reduce human errors, and improve medical service efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 Used to demonstrate the back structure of the present invention;

[0019] Figure 3 Used to demonstrate the connection between the test bench and the connection socket;

[0020] Figure 4 It is an exploded view used to show the connection between the vertical connecting plate, the traction bar and the rotating plate;

[0021] Figure 5 Used to show the connection between the first rotation bar and the second rotation bar.

[0022] In the figure: 1. horizontal slide rail; 11. slide groove; 12. drive screw; 13. drive motor; 14. support table; 2. slide sleeve; 21. screw sleeve; 22. connecting seat; 23. collar; 3. test bench; 31. rotating shaft; 32. vertical connecting disk; 33. connecting hole; 4. first pressure sensor; 5. traction bar; 51. holding handle; 52. first rotating bar; 53. connecting shaft; 6. rotating disk; 61. rotating motor; 62. worm gear; 63. worm; 64. second rotating bar; 65. connecting sleeve; 7. second pressure sensor; 8. cable drag chain. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0024] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “front”, “back”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0025] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0026] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "disposed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Example, see Figure 1-5 A device for measuring Parkinson's muscle rigidity includes a horizontal slide rail 1, the horizontal slide rail 1 is slidably connected to a slide sleeve 2 that slides along its length direction, a slide groove 11 with an opening on one side is provided in the horizontal slide rail 1, a driving screw rod 12 is rotatably connected in the slide groove 11, a driving motor 13 for driving the slide sleeve 2 to slide is installed at one end of the horizontal slide rail 1, a power output shaft of the driving motor 13 is connected to one end of the driving screw rod 12, and the slide sleeve 2 extends into the slide groove 11 and is provided with a screw rod sleeve 21 that matches the driving screw rod 12.

[0028] A connecting seat 22 is provided at the upper end of the sliding sleeve 2, and a test bench 3 is rotatably connected to the upper end of the connecting seat 22. A rotating shaft 31 perpendicular to the length direction of the horizontal slide rail 1 is horizontally provided at the lower end of the test bench 3. Two rings 23 rotatably connected to the front and rear ends of the rotating shaft 31 are provided in the middle of the connecting seat 22. A first pressure sensor 4 is provided on both sides of the rotating shaft 31 at the upper end of the connecting seat 22. The upper end of each first pressure sensor 4 is in contact with the lower end of the test bench 3. When the test bench 3 rotates left and right, pressure can be applied to the two first pressure sensors 4 respectively.

[0029] A vertical connecting disk 32 is arranged upward at the upper end of the test bench 3, and a connecting hole 33 is opened in the middle of the vertical connecting disk 32 along the length direction of the rotating shaft 31. A traction bar 5 and a rotating disk 6 are rotatably connected on both sides of the vertical connecting disk 32 respectively. The traction bar 5 is connected to a gripping handle 51, and the gripping handle 51 is arranged parallel to the traction bar 5. The test bench 3 is equipped with a rotating motor 61 for driving the rotating disk 6 to rotate. A circle of worm gear 62 is arranged on the outer periphery of the rotating disk 6. The power output shaft of the rotating motor 61 is connected to a worm 63 meshing with the worm gear 62, so that the rotating disk 6 can be driven to rotate by the rotating motor 61.

[0030] The traction bar 5 extends into the connecting hole 33 and is provided with a first rotating bar 52 rotatably connected to the inner wall thereof. The rotating disk 6 extends into the connecting hole 33 and is provided with a second rotating bar 64 rotatably connected to the inner wall thereof and arranged opposite to the first rotating bar 52. The cross-sections of the first rotating bar 52 and the second rotating bar 64 are both smaller than a semicircle. The first rotating bar 52 is connected to a connecting shaft 53 arranged along the axis of the connecting hole 33. The second rotating bar 64 is connected to a connecting sleeve 65 rotatably connected to the connecting shaft 53, so that the first rotating bar 52 and the second rotating bar 64 are rotatably connected about the axis of the connecting hole 33. Two second pressure sensors 7 are arranged opposite to each other between the first rotating bar 52 and the second rotating bar 64. The two second pressure sensors 7 are respectively arranged on both sides of the connecting sleeve 65. When the first rotating bar 52 rotates left and right relative to the second rotating bar 64, pressure is applied to the two second pressure sensors 7 respectively.

[0031] A support platform 14 is arranged below the horizontal side, and a cable drag chain 8 connected to one end of the horizontal slide rail 1 is arranged above the support platform 14. The free end of the cable drag chain 8 is connected to the test bench 3. The cable drag chain 8 is used for power supply and signal transmission of the first pressure sensor 4, the rotating motor 61, and the second pressure sensor 7.

[0032] Working principle: When performing Parkinson's myotonia test for a patient, the patient holds the gripping handle 51 with one hand, and then keeps relaxed as much as possible, and does not actively resist the traction force. The driving motor 13 drives the sliding sleeve 2 to move back and forth horizontally, thereby providing a uniform traction force to pull the test bench 3 back and forth. The patient's arm is evenly pulled by the gripping handle 51 to swing. During the movement to one side, the resistance of the arm will cause the test bench 3 to have a tilting pressure in the opposite direction of the movement, and the pressure changes of the movement on both sides are respectively detected by the two first pressure sensors 4;

[0033] After the left and right traction test, the rotation traction test is performed. During the process, the rotating motor 61 drives the rotating disk 6 to rotate back and forth left and right, and the rotating disk 6 then drives the holding handle 51 to rotate back and forth left and right through the connection between the first rotating bar 52 and the second rotating bar 64, and finally the traction arm rotates back and forth left and right;

[0034] When moving their limbs, patients with Parkinson's myotonia will feel a uniform resistance, just like trying to turn an object fixed by a lead pipe. In addition to the uniform resistance, there is also an intermittent "stuttering" phenomenon, which makes the passive movement feel like rotating a part with gears. Unlike normal conditions or other types of dystonia, the resistance generated by the myotonia of Parkinson's patients will not decrease or increase with the increase in the speed of passive movement. Combined with this characteristic, the pressure data detected by the first pressure sensor 4 and the second pressure sensor 7 are used to comprehensively judge the condition.

[0035] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A device for measuring Parkinson's myotonia, comprising a horizontal slide rail (1), characterized in that: The horizontal slide rail (1) is slidably connected to a sleeve (2) that slides along its length direction; one end of the horizontal slide rail (1) is installed with a driving motor (13) for driving the sleeve (2) to slide; the upper end of the sleeve (2) is provided with a connecting seat (22); the upper end of the connecting seat (22) is rotatably connected to a test bench (3); the lower end of the test bench (3) is horizontally provided with a rotating shaft (31) that is perpendicular to the length direction of the horizontal slide rail (1); the middle part of the connecting seat (22) is provided with a sleeve (23) that is rotatably connected to the rotating shaft (31); the upper end of the connecting seat (22) is provided with first pressure sensors (4) on both sides of the rotating shaft (31); the upper end of each first pressure sensor (4) is in contact with the lower end of the test bench (3); A vertical connection disk (32) is arranged upward at the upper end of the test bench (3), and a connection hole (33) is provided in the middle of the vertical connection disk (32) along the length direction of the rotating shaft (31). A traction bar (5) and a rotating disk (6) are rotatably connected to the two sides of the vertical connection disk (32), respectively. The traction bar (5) is connected to a gripping handle (51), and the gripping handle (51) is arranged parallel to the traction bar (5). The test bench (3) is equipped with a rotating motor (61) for driving the rotating disk (6) to rotate. The traction bar (5) extends into the connection hole (33). ) is provided with a first rotating bar (52) rotatably connected to the inner wall thereof, the rotating disk (6) extends into the connecting hole (33) and is provided with a second rotating bar (64) rotatably connected to the inner wall thereof and arranged opposite to the first rotating bar (52), the cross-sections of the first rotating bar (52) and the second rotating bar (64) are both smaller than a semicircle, the first rotating bar (52) and the second rotating bar (64) are rotatably connected at the axis of the connecting hole (33), and two second pressure sensors (7) are arranged opposite to each other between the first rotating bar (52) and the second rotating bar (64).

2. A device for measuring Parkinson's myotonia according to claim 1, characterized in that: The horizontal slide rail (1) is provided with a slide groove (11) with an opening on one side, a driving screw rod (12) is rotatably connected in the slide groove (11), a power output shaft of the driving motor (13) is connected to one end of the driving screw rod (12), and the slide sleeve (2) extends into the slide groove (11) and is provided with a screw rod sleeve (21) matched with the driving screw rod (12).

3. A device for measuring Parkinson's myotonia according to claim 1, characterized in that: A cable drag chain (8) connected to one end of the horizontal slide rail (1) is provided on one side thereof, and a free end of the cable drag chain (8) is connected to the test bench (3). The cable drag chain (8) is used for power supply and signal transmission of the first pressure sensor (4), the rotating motor (61), and the second pressure sensor (7).

4. A device for measuring Parkinson's myotonia according to claim 3, characterized in that: A support platform (14) is provided on the horizontal side below the cable drag chain (8).

5. A device for measuring Parkinson's myotonia according to claim 1, characterized in that: A worm gear (62) is provided on the outer periphery of the rotating disk (6), and a power output shaft of the rotating motor (61) is connected to a worm (63) meshing with the worm gear (62).

6. A device for measuring Parkinson's myotonia according to claim 1, characterized in that: The first rotating bar (52) is connected to a connecting shaft (53) arranged along the axis of the connecting hole (33), and the second rotating bar (64) is connected to a connecting sleeve (65) rotatably connected to the connecting shaft (53).

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