Level gauge joint motion range protractor

Abstract

The utility model relates to the technical field of protractors, in particular to a gradienter joint motion range protractor, which reduces the operation difficulty of personnel, can accurately measure the joint motion range of a patient and read numerical values, enhances the practicability and improves the accuracy of calculating the joint function loss degree. The top end of the main ruler is connected with the outer side wall of the angle measuring disc; the upper portion of the auxiliary ruler is rotationally connected with the angle measuring disc through the fastening device, the fastening device is used for rotationally guiding and supporting the auxiliary ruler, the fastening device is used for rotationally fastening and positioning the auxiliary ruler and the angle measuring disc, the arrow is arranged at the end of the auxiliary ruler, and the horizontal mechanism is arranged at the end of the auxiliary ruler. A plurality of groups of dimension scales are respectively arranged on the outer side walls of the angle measuring disc, the main ruler and the auxiliary ruler, and a horizontal mechanism is arranged on one side of the main ruler and one side of the auxiliary ruler and is used for measuring the inclination condition.

Description

Technical Field

[0001] The utility model relates to the technical field of protractors, in particular to a level joint activity protractor. Background Art

[0002] Accurately measuring the range of motion of the spine and limb joints is crucial in forensic clinical practice and orthopedic treatment, particularly during physical examinations and joint rehabilitation. This step is not only crucial for assessing joint function but also essential for evaluating the effectiveness of rehabilitation training. However, the traditional simple protractors or rulers currently relied upon by orthopedic surgeons and forensic pathologists have demonstrated numerous limitations in practical applications.

[0003] Specifically, traditional measurement methods often require the collaboration of at least three people: one person is responsible for adjusting the patient to a suitable measurement position, a second person operates the protractor for measurement, and a third person is responsible for supervising and confirming that the protractor's main and secondary scales are precisely aligned in the horizontal or vertical position. However, slight deviations are often difficult to avoid with visual inspection alone. To further complicate matters, when the second forensic doctor attempts to stabilize and accurately read the protractor's degree, he or she must also consider the fixation of the protractor, which greatly increases the difficulty of operation and can easily cause the main and secondary scales to deviate from the preset position, thereby introducing reading errors. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a level joint motion goniometer that reduces the difficulty of operation for personnel, can accurately measure the patient's joint motion range and read the numerical value, enhances practicality, and improves the accuracy of calculating the degree of joint function loss.

[0005] The utility model provides a level joint motion goniometer, comprising a protractor and a main ruler, wherein the top end of the main ruler is connected to the outer side wall of the protractor; further comprising a fastening device, a horizontal mechanism, a secondary ruler, an arrow and a plurality of size scales; the upper portion of the secondary ruler is rotationally connected to the protractor via the fastening device; the fastening device is used for supporting the rotation guide of the secondary ruler, and is used for fastening the rotation between the secondary ruler and the protractor; the arrow is provided at the end of the secondary ruler; the plurality of size scales are respectively provided on the outer side walls of the protractor, the main ruler and the secondary ruler; a horizontal mechanism is provided on one side of the main ruler and the secondary ruler, and the horizontal mechanism is used for measuring the inclination; when it is necessary to measure the range of motion of the joint, the main ruler and the secondary ruler are respectively placed in contact with the surface of the limb and leveled; when the joint of the limb is moved and bent, the limb drives the main ruler and the secondary ruler to swing respectively. Rotate to form a certain angle between the main ruler and the auxiliary ruler, and observe the value on the size scale on the surface of the protractor disk to which the arrow points, so as to facilitate the measurement of the joint motion. At this time, the rotation angle between the protractor disk and the auxiliary ruler is fixed by the fastening device, so as to facilitate the accurate reading of the measured value, reducing the difficulty of operation for personnel. At the same time, in conjunction with the use of the horizontal mechanism, the protractor can not only calibrate the flatness and straightness of the neutral position, horizontal position and vertical position of the patient's neck, waist, shoulder joint, elbow joint, wrist joint, hip joint, knee joint, ankle joint and forearm rotation, but also accurately measure the patient's joint motion and read the value, and enhance the practicality of the protractor, thereby improving the accuracy of calculating the degree of joint function loss.

[0006] Preferably, the fastening device includes an internal threaded sleeve, a limit plate, a handle, a stud, a first gasket, a second gasket and a spring, the bottom end of the internal threaded sleeve is connected to the top end of the limit plate, the upper part of the internal threaded sleeve passes through the interior of the protractor, and the secondary ruler is rotatably sleeved on the outer wall of the internal threaded sleeve, the bottom end of the handle is connected to the top end of the stud, and the lower part of the stud is threadedly mounted in the internal threaded sleeve, the first gasket and the second gasket are respectively sleeved on the outer wall of the internal threaded sleeve, the first gasket is arranged between the top end of the protractor and the bottom end of the secondary ruler, the second gasket is arranged between the top end of the secondary ruler and the bottom end of the handle, the spring is sleeved on the outer wall of the stud, and the bottom end of the spring contacts the top end of the second gasket; the rotation of the secondary ruler is guided by the internal threaded sleeve, so that the protractor and the secondary ruler cooperate to make When measuring, when it is necessary to fix the measured angle, the handle is grasped and rotated to adjust, so that the handle drives the stud to rotate and move, and after the stud rotates and moves downward, the secondary ruler is pressed downward by the second gasket, so that the secondary ruler and the protractor are fixed. By setting a spring, the second gasket can provide a certain elastic pressure when the angle between the protractor and the secondary ruler is adjusted, thereby improving the adjustment stability between the protractor and the secondary ruler, improving the convenience of fixing the measured angle, improving the accuracy of numerical reading, and improving the convenience of operation. By setting the first gasket, a certain distance is maintained between the protractor and the secondary ruler, reducing friction damage between the protractor and the secondary ruler, and by setting the second gasket, friction damage between the handle and the secondary ruler is reduced, thereby improving the service life of the protractor.

[0007] Preferably, the horizontal mechanism includes two sets of bubble levels, which are respectively installed on the outer walls of the main scale and the auxiliary scale; by observing the levelness of the two sets of bubble levels, it is convenient to detect and indicate the inclination of the main scale and the auxiliary scale in the horizontal direction, thereby improving the accuracy and convenience of measurement.

[0008] Preferably, it also includes a semicircular groove, which is arranged on the arrow; by setting the semicircular groove, it is convenient to display the size scale position indicated by the arrow, avoiding the arrow blocking the entire size scale and affecting numerical observation, thereby improving convenience of use.

[0009] Preferably, the protractor, main ruler and auxiliary ruler are all made of rigid materials, which improves the structural strength of the protractor, reduces deformation, and improves measurement accuracy and stability.

[0010] Preferably, anti-slip grooves are provided on the outer side wall of the handle to improve the convenience of the handle rotation operation.

[0011] Preferably, it further includes an extension ruler and a magnetic block, the size scale is set on the outer wall of the extension ruler, a slide groove is set in the main ruler, the extension ruler is slidably set in the slide groove, and the magnetic block is installed at the end of the extension ruler; by pulling the extension ruler outward for use, the convenience of extending the use of the main ruler is improved, and the positioning effect of the extension ruler after storage is improved by adsorption and fixation between the magnetic block and the main ruler.

[0012] Preferably, there is an interference fit between the extension ruler and the slide groove, thereby improving the stability of the extension ruler in use.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: when it is necessary to measure the range of motion of a joint, the main ruler and the auxiliary ruler are respectively placed in contact with the surface of the limb and flat; when the limb joint is bent, the limb drives the main ruler and the auxiliary ruler to swing and rotate, so that a certain angle is formed between the main ruler and the auxiliary ruler; by observing the value on the size scale on the surface of the protractor disk pointed by the arrow, the range of motion of the joint is measured conveniently; at this time, the rotation angle between the protractor disk and the auxiliary ruler is fixed by the fastening device, so that the measured value can be accurately read, which reduces the difficulty of operation for personnel; at the same time, in conjunction with the use of the horizontal mechanism, the protractor can not only be used to calibrate the flatness and straightness of the neutral position, horizontal position and vertical position of the joint activities such as the rotation of the patient's neck, waist, shoulder joint, elbow joint, wrist joint, hip joint, knee joint, ankle joint and forearm, but also can accurately measure the patient's joint range of motion and read the value, and can also enhance the practicality of the protractor, thereby improving the accuracy of calculating the degree of joint function loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is an axonometric structural diagram of the present utility model;

[0015] Figure 2 This is a top view structural diagram of the connection between the protractor and the main ruler;

[0016] Figure 3 It is a schematic diagram of the axonometric partial structure of the connection between the handle and the stud;

[0017] Figure 4 It is a schematic diagram of the axonometric local structure connected with the arrow and the semicircular groove;

[0018] Figure 5 It is a schematic diagram of the axonometric structure connecting the main ruler and the bubble level.

[0019] Markings in the attached figure: 1. protractor; 2. main ruler; 3. auxiliary ruler; 4. arrow; 5. size scale; 6. internal threaded sleeve; 7. limit plate; 8. handle; 9. stud; 10. first gasket; 11. second gasket; 12. bubble level; 13. semicircular groove; 14. spring; 15. extension ruler; 16. magnet. DETAILED DESCRIPTION

[0020] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present invention.

[0021] Example 1

[0022] like Figures 1 to 5 As shown, the spirit level joint movable goniometer of the present invention includes a protractor disc 1 and a main ruler 2, the top of the main ruler 2 is connected to the outer wall of the protractor disc 1; further comprising a fastening device, a horizontal mechanism, a secondary ruler 3, an arrow 4 and multiple sets of size scales 5, the upper portion of the secondary ruler 3 is rotatably connected to the protractor disc 1 through the fastening device, the fastening device is used to provide a rotational guide support for the secondary ruler 3, and the fastening device is used to tightly position the rotation between the secondary ruler 3 and the protractor disc 1, the arrow 4 is provided at the end of the secondary ruler 3, and the multiple sets of size scales 5 are respectively provided on the outer walls of the protractor disc 1, the main ruler 2 and the secondary ruler 3, and a horizontal mechanism is provided on one side of the main ruler 2 and the secondary ruler 3, and the horizontal mechanism is used to measure the inclination;

[0023] like Figure 3 As shown, the fastening device includes an internal threaded sleeve 6, a limit plate 7, a handle 8, a stud 9, a first gasket 10, a second gasket 11 and a spring 14. The bottom end of the internal threaded sleeve 6 is connected to the top end of the limit plate 7, the upper part of the internal threaded sleeve 6 passes through the interior of the protractor 1, and the secondary ruler 3 is rotatably sleeved on the outer wall of the internal threaded sleeve 6. The bottom end of the handle 8 is connected to the top end of the stud 9. The lower part of the stud 9 is threadedly mounted in the internal threaded sleeve 6. The first gasket 10 and the second gasket 11 are respectively sleeved on the outer wall of the internal threaded sleeve 6. The first gasket 10 is arranged between the top end of the protractor 1 and the bottom end of the secondary ruler 3. The second gasket 11 is arranged between the top end of the secondary ruler 3 and the bottom end of the handle 8. The spring 14 is sleeved on the outer wall of the stud 9, and the bottom end of the spring 14 contacts the top end of the second gasket 11.

[0024] In this embodiment, when it is necessary to measure the range of motion of the joint, the main ruler 2 and the auxiliary ruler 3 are respectively placed in contact with the surface of the limb and flat. When the limb joint is bent, the limb drives the main ruler 2 and the auxiliary ruler 3 to swing and rotate, so that a certain angle is formed between the main ruler 2 and the auxiliary ruler 3. By observing the value of the size scale 5 on the surface of the protractor 1, the range of motion of the joint is conveniently measured. At this time, the rotation angle between the protractor 1 and the auxiliary ruler 3 is fixed by the fastening device. By setting the spring 14, the second gasket 11 is provided to support it when the angle between the protractor 1 and the auxiliary ruler 3 is adjusted. It provides a certain elastic compression, improves the adjustment stability between the protractor disk 1 and the auxiliary ruler 3, thereby facilitating the accurate reading of the measured value and reducing the difficulty of operation for personnel. At the same time, in conjunction with the use of the horizontal mechanism, the protractor can not only calibrate the flatness and straightness of the neutral position, horizontal position and vertical position of the patient's neck, waist, shoulder joint, elbow joint, wrist joint, hip joint, knee joint, ankle joint and forearm rotation, but also accurately measure the patient's joint activity and read the value, and also enhance the practicality of the protractor, thereby improving the accuracy of calculating the degree of joint function loss.

[0025] Example 2

[0026] On the basis of Example 1, Figure 1 As shown, the level joint activity goniometer of the present invention, the leveling mechanism includes two sets of bubble levels 12, the two sets of bubble levels 12 are respectively installed on the outer walls of the main ruler 2 and the auxiliary ruler 3;

[0027] like Figure 4 As shown, it also includes a semicircular groove 13, which is set on the arrow 4;

[0028] like Figure 1 As shown, the protractor 1, main ruler 2 and auxiliary ruler 3 are all made of rigid materials;

[0029] like Figure 3 As shown, the outer side wall of the handle 8 is provided with anti-slip grooves;

[0030] like Figure 1 As shown, it also includes an extension ruler 15 and a magnetic block 16. The size scale 5 is set on the outer wall of the extension ruler 15. A slide groove is set in the main ruler 2. The extension ruler 15 is slidably set in the slide groove. The magnetic block 16 is installed at the end of the extension ruler 15.

[0031] like Figure 1 As shown, there is an interference fit between the extension ruler 15 and the slide groove;

[0032] In this embodiment, the rotation of the secondary ruler 3 is guided by the internal threaded sleeve 6, so that the protractor 1 and the secondary ruler 3 are used together for measurement. When the measured angle needs to be fixed, the handle 8 is grasped and rotated to adjust the handle 8 to drive the stud 9 to rotate and move. After the stud 9 rotates and moves downward, the secondary ruler 3 is pressed downward by the second gasket 11, so that the secondary ruler 3 and the protractor 1 are fixed, thereby improving the convenience of fixing the measured angle, improving the accuracy of numerical reading, and improving the convenience of operation. By setting the first gasket 10, a certain distance is maintained between the protractor 1 and the secondary ruler 3, reducing the friction damage between the protractor 1 and the secondary ruler 3. By setting the second gasket 11, the friction damage between the handle 8 and the secondary ruler 3 is reduced, and the service life of the protractor is increased. By observing the levelness of the two sets of bubble levels 12, it is convenient to detect and indicate the inclination of the main ruler 2 and the secondary ruler 3 in the horizontal direction, thereby improving the accuracy and convenience of measurement.

[0033] The level joint motion goniometer of the present invention is designed to measure the range of motion of a joint. When the range of motion of a joint needs to be measured, the main ruler 2 and the auxiliary ruler 3 are respectively placed in contact with the surface of the limb and level. When the joint of the limb is moved and bent, the limb drives the main ruler 2 and the auxiliary ruler 3 to swing and rotate, so that a certain angle is formed between the main ruler 2 and the auxiliary ruler 3. By observing the value on the size scale 5 on the surface of the protractor disc 1 pointed by the arrow 4, the range of motion of the joint can be measured conveniently. At this time, the rotation angle between the protractor disc 1 and the auxiliary ruler 3 is fixed by the fastening device, so that the measured value can be accurately read.

[0034] The bubble level 12 of the level joint activity goniometer of the present invention is purchased on the market, and technicians in this industry only need to install and operate it according to the accompanying instruction manual, without the need for technicians in this field to make creative efforts.

[0035] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A level joint motion goniometer, comprising a protractor disc (1) and a main ruler (2), wherein the top end of the main ruler (2) is connected to the outer side wall of the protractor disc (1); characterized in that: The invention also comprises a fastening device, a horizontal mechanism, a secondary ruler (3), an arrow (4) and a plurality of size scales (5); the upper portion of the secondary ruler (3) is rotatably connected to the angle disc (1) through the fastening device; the fastening device is used for supporting the rotation guide of the secondary ruler (3) and for fastening the secondary ruler (3) and the angle disc (1) to fix the rotation between the secondary ruler (3) and the angle disc (1); the arrow (4) is arranged at the end of the secondary ruler (3); the plurality of size scales (5) are respectively arranged on the outer side walls of the angle disc (1), the main ruler (2) and the secondary ruler (3); a horizontal mechanism is arranged on one side of the main ruler (2) and the secondary ruler (3); and the horizontal mechanism is used for measuring the tilt condition.

2. The level joint motion goniometer according to claim 1, wherein: The fastening device comprises an internal threaded sleeve (6), a limit plate (7), a handle (8), a stud (9), a first gasket (10), a second gasket (11) and a spring (14). The bottom end of the internal threaded sleeve (6) is connected to the top end of the limit plate (7). The top end of the internal threaded sleeve (6) passes through the interior of the angle disc (1). The secondary ruler (3) is rotatably mounted on the outer wall of the internal threaded sleeve (6). The bottom end of the handle (8) is connected to the top end of the stud (9). The bottom end of the stud (9) is connected to the top end of the The first washer (10) and the second washer (11) are respectively mounted on the outer wall of the internal threaded sleeve (6). The first washer (10) is arranged between the top end of the protractor (1) and the bottom end of the secondary ruler (3). The second washer (11) is arranged between the top end of the secondary ruler (3) and the bottom end of the handle (8). The spring (14) is mounted on the outer wall of the stud (9). The bottom end of the spring (14) contacts the top end of the second washer (11).

3. The level joint motion goniometer according to claim 1, characterized in that: The leveling mechanism comprises two sets of bubble levels (12), which are respectively mounted on the outer side walls of the main scale (2) and the auxiliary scale (3).

4. The level joint motion goniometer according to claim 1, wherein: It also includes a semicircular groove (13), which is arranged on the arrow (4).

5. The level joint motion goniometer according to claim 1, characterized in that: The protractor (1), main ruler (2) and auxiliary ruler (3) are all made of rigid materials.

6. The level joint motion goniometer according to claim 2, characterized in that: Anti-slip grooves are provided on the outer side wall of the handle (8).

7. The level joint motion goniometer according to claim 1, characterized in that: The invention also comprises an extension ruler (15) and a magnetic block (16), wherein the size scale (5) is arranged on the outer wall of the extension ruler (15), a slide groove is arranged in the main ruler (2), the extension ruler (15) is slidably arranged in the slide groove, and the magnetic block (16) is installed at the end of the extension ruler (15).

8. The level joint motion goniometer according to claim 7, characterized in that: The extension ruler (15) and the slide groove are in interference fit.

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