Treatment examination assist device

Abstract

A treatment and examination assist device effectively solves the problem that lumbar vertebra movement of a patient is inconvenient to measure. Comprising a bottom plate, a supporting column in the vertical direction is fixed to the left side of the bottom plate, a moving block capable of sliding up and down is arranged on the upper side of the supporting column, a swing groove with a forward opening is formed in the front end of the moving block, and the upper end of the swing groove is communicated with the outside; a left-right axial fixing column is fixed in the swing groove, a fan-shaped guide block is coaxially fixed to the fixing column, a plurality of ratchets evenly distributed in the circumferential direction of the guide block are fixed to the outer edge face of the guide block, the right end faces of the ratchets are inclined faces, and a guide groove located on the right sides of the ratchets is formed in the guide block. An opening of the guide groove faces forwards, and the guide groove is composed of an arc-shaped groove and a transverse groove in the left-right direction; the transverse groove communicates with the upper end of the arc-shaped groove and is located between every two adjacent ratchets; the device is simple in structure, convenient to operate, novel in conception and high in usability.

Description

Technical Field

[0001] The present invention relates to the technical field of medical auxiliary equipment, and in particular to a treatment and examination auxiliary device. Background Art

[0002] Ankylosing spondylitis is a common chronic inflammatory disease that belongs to the category of rheumatic autoimmune diseases. The main lesions are the sacroiliac joints, spine, and peripheral joints. Some patients with severe disease may develop spinal deformity and ankylosing. The prevalence of ankylosing spondylitis is approximately 0.25%-0.5%, with a male to female ratio of 4:1. Women usually develop the disease more slowly and have milder symptoms than men. The examination of ankylosing spondylitis requires a comprehensive assessment based on symptoms, laboratory tests, and imaging methods. Early diagnosis is crucial to controlling disease progression. Auxiliary examinations can be performed through joint function assessment, specifically lumbar range of motion measurement or thoracic expansion testing, so that medical staff can understand the degree of restricted spinal and thoracic movement in patients.

[0003] The lumbar range of motion measurement includes flexion, extension, lateral bending, rotation and other directions. The angle changes need to be recorded through tools or observation methods, combined with the symptom analysis results. The specific steps are as follows: Flexion movement: stand, slowly lean forward, and then align the axis of the protractor with the 5th lumbar spinous process, with the fixed arm parallel to the spine and the moving arm pointing to the 7th cervical spinous process; the normal range is 40°-60°; Extension movement: stand, hold the waist with both hands, and slowly lean back; the protractor is placed in the same position as flexion, and the normal range is 20°-35°; Side bending movement: Stand with your feet shoulder-width apart, lean your body to one side, and slide your hand down the thigh on the same side; the axis of the protractor should be aligned with the 5th lumbar vertebra, the fixed arm should be perpendicular to the ground, and the movable arm should point to the 7th cervical vertebra; the normal range is 15°-20° (bilateral). Currently, medical staff usually provide posture guidance to patients, and then use tools to measure the patient's lumbar spine mobility. When the patient requires a large number of measurements, medical staff need to repeat the measurement many times and then record the data. The workload is large, and the data obtained is not intuitive, which brings inconvenience to medical staff. Summary of the Invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the present invention is to provide a treatment and examination aid, which effectively solves the problem of inconvenience in measuring the patient's lumbar spine movement.

[0005] The technical solution is as follows: the present invention comprises a bottom plate, a support column in the up and down directions is fixed on the left side of the bottom plate, a moving block which can slide up and down is provided on the upper side of the support column, a swing groove with an opening facing forward and an upper end connected to the outside is provided at the front end of the moving block, a yield groove is provided on the moving block and is located on the left side of the swing groove, a writing board which can be moved up and down is detachably connected to the left side of the yield groove, a fixed column with left and right axial directions is fixed in the swing groove, a fan-shaped guide block is coaxially fixed on the fixed column, a plurality of ratchets uniformly distributed along the circumferential direction are fixed on the outer edge surface of the guide block, the right end surface of the ratchet is an inclined surface, a guide groove is provided on the guide block and is located on the right side of the ratchet, the guide groove opening faces forward and is composed of an arc groove and a horizontal groove in the left and right directions, the horizontal groove is connected to the upper end of the arc groove and is located between two adjacent ratchets;

[0006] The fixing column is fixed with a swing rod located on the right side of the guide block and in the up and down directions. A slider that can slide left and right is provided on the lower side of the swing rod. A connecting cylinder is fixed to the left end of the slider. The opening of the connecting cylinder faces downward and the inner side thereof is slidably connected to a guide rod that can move up and down. The lower end of the guide rod is inserted into the guide groove and can be inserted between two adjacent ratchets. The lower end surface of the guide rod is an inclined surface that is higher in front and lower in the back. A writing pen in the left and right directions is fixed to the left end of the connecting cylinder. The writing pen can contact the writing board, and the writing board can move upward with the swing of the swing rod. A sliding sleeve is slidably connected to the upper side of the swing rod, and a connecting block that can move up and down is provided below the right end of the sliding sleeve. The right end of the connecting block is rotatably connected to a connecting column. The right ends of the connecting column and the fixed column are respectively fixed with upper and lower axial positioning rings. Rectangular frames are respectively provided on the left and right sides of the positioning ring. The rectangular frames can slide around the circumferential direction of the positioning ring. The two rectangular frames in the same positioning ring are connected by a tightening belt.

[0007] The present invention simplifies the lumbar spine range of motion examination process, which is beneficial for patients to continuously record the swing curves of the patient's lumbar spine in multiple directions such as flexion, extension and scoliosis through autonomous limb swing, and record the curves on a recording board with a scale, thereby avoiding the tedious operation of medical staff repeatedly using a protractor to perform manual measurements and record data, greatly reducing the workload of medical staff, facilitating the efficiency of medical staff's examinations and the intuitiveness of the results. At the same time, the patient can change to different body positions independently. After completing the measurement in one direction, the patient can adjust the position to perform the next body position test, without the need for medical staff to frequently reset the equipment, thereby simplifying the operational process of continuous measurement. At the same time, the writing board is easy to clean and reuse. The present invention has a simple structure, convenient operation, novel conception and strong usability. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is an axonometric drawing of the present invention.

[0009] Figure 2 It is a partially cutaway left axonometric view of the present invention.

[0010] Figure 3It is a partially cutaway main axonometric view of the present invention.

[0011] Figure 4 It is a partially cut-away left view of the present invention.

[0012] Figure 5 It is a partially cutaway top view of the present invention.

[0013] Figure 6 It is a partially cutaway top view of the present invention.

[0014] Figure 7 It is a partially cut-away left view of the present invention.

[0015] Figure 8 It is a parts drawing of the guide block, connecting tube and guide rod of the present invention.

[0016] Figure 9 This invention Figure 2 A magnified view of center.

[0017] Figure 10 This invention Figure 3 Magnified view of B.

[0018] Figure 11 This invention Figure 3 Enlarged view of C in the middle.

[0019] Figure 12 This invention Figure 4 Enlarged view of D in the middle.

[0020] Figure 13 This invention Figure 7 Enlarged view of E. DETAILED DESCRIPTION

[0021] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

[0022] Depend on Figures 1 to 13 It is given, including a base plate 1, a support column 2 in the up and down directions is fixed on the left side of the base plate 1, a moving block 3 that can slide up and down is provided on the upper side of the support column 2, a swinging groove 4 with an opening facing forward and the upper end connected to the outside is provided at the front end of the moving block 3, a give way groove 5 is provided on the moving block 3, and a writing board 6 that can move up and down is detachably connected to the left side of the give way groove 5, a left and right axial fixed column 7 is fixed in the swinging groove 4, a fan-shaped guide block 8 is coaxially fixed on the fixed column 7, a plurality of ratchets 9 uniformly distributed along the circumferential direction are fixed on the outer edge surface of the guide block 8, the right end surface of the ratchet 9 is an inclined surface, a guide groove 10 is provided on the guide block 8 to the right of the ratchet 9, the guide groove 10 opens forward and consists of an arc groove and a horizontal groove in the left and right directions, the horizontal groove is connected to the upper end of the arc groove and is located between two adjacent ratchets 9;

[0023] The fixed column 7 is fixed with a swing rod 11 located on the right side of the guide block 8 and in the up and down direction. A slider 12 that can slide left and right is provided on the lower side of the swing rod 11. A connecting cylinder 13 is fixed to the left end of the slider 12. The connecting cylinder 13 opens downward and its inner side is slidably connected to a guide rod 14 that can move up and down. The lower end of the guide rod 14 is inserted into the guide groove 10 and can be inserted between two adjacent ratchets 9. The lower end surface of the guide rod 14 is an inclined surface with a high front and a low back. A writing pen 15 in the left and right directions is fixed to the left end of the connecting cylinder 13. The writing pen 15 can be connected to the writing board. 6 contact, the writing board 6 can move upward with the swing of the swing rod 11, the upper side of the swing rod 11 is slidably connected to a sliding sleeve 16, and a connecting block 17 that can move up and down is provided below the right end of the sliding sleeve 16. The right end of the connecting block 17 is rotatably connected to a connecting column 18, and the right ends of the connecting column 18 and the fixed column 7 are respectively fixed with upper and lower axial positioning rings 19. Rectangular frames 20 are respectively provided on the left and right sides of the positioning ring 19. The rectangular frames 20 can slide around the circumferential direction of the positioning ring 19. The two rectangular frames 20 in the same positioning ring 19 are connected by a tightening belt 21.

[0024] In order to facilitate limiting the sliding of the moving block 3, the moving block 3 is slidably connected to the support column 2, the left end of the moving block 3 is threadedly connected to the limiting screw 22, the right end of the limiting screw 22 is rotatably connected to the damping block 23 and the left end is fixed with a turning handle, and the damping block 23 is in contact with the left end face of the support column 2.

[0025] In order to facilitate the movement of the writing board 6, the upper side of the moving block 3 is rotatably connected to a transmission column 24 which is axially arranged left and right and located behind the swing groove 4. A transmission gear 25 is coaxially fixed to the left end of the transmission column 24. The front side of the moving block 3 is slidably connected to a driven rack 26 in the up and down directions. The driven rack 26 is engaged with the transmission gear 25. The projection of the driven rack 26 in the up and down directions is an inverted L shape. The writing board 6 is in contact with the stepped surface of the driven rack 26 and is rotatably connected to the left side by two bolts. The rear end of the bolt is threadedly connected to the driven rack 26.

[0026] In order to make the writing board 6 swing upward with the swing of the swing rod 11, a connecting gear 27 is coaxially provided at the right end of the transmission column 24. A pressure groove is provided on the moving block 3, which is located above the connecting gear 27 and the right end of which is connected to the swing groove 4. A transmission rack 28 is slidably connected in the pressure groove. The left side of the transmission rack 28 is connected to the left side wall of the pressure groove through a connecting compression spring. The right end of the transmission rack 28 extends out of the pressure groove and is inserted into the swing groove 4. The left end of the swing rod 11 is in contact with the rack.

[0027] In order to prevent the transmission rack 28 from driving the transmission column 24 to rotate through the connecting gear 27 when moving to the right, the connecting gear 27 is provided with a plurality of limit grooves 29 evenly distributed along its circumferential direction and opening toward its axis. A notch with an upward opening is provided on the upper side of the transmission column 24, and a limit block 30 is connected to the notch via a spring sheet. The upper end face of the limit block 30 is an inclined surface with a higher front and a lower back, and can be inserted into the limit groove 29.

[0028] In order to prevent the transmission gear 25 and the driven rack 26 from sliding downward due to the weight of the writing board 6, a plurality of slots 31 with outward openings are provided on the transmission column 24, and a rectangular groove is provided on the moving block 3 below the transmission column 24. An insert block 32 is slidably connected in the rectangular groove. The lower end of the insert block 32 is connected to the side wall of the rectangular groove through a V-shaped elastic sheet. The upper end surface of the insert block 32 is an inclined surface with a higher front and a lower rear. A pull rope 33 is fixed to the lower end of the insert block 32. The free end of the pull rope 33 passes through the moving block 3 and is provided with a pull handle.

[0029] In order to facilitate the control of the sliding of the slider 12 and the pressing of the writing pen 15 on the writing board 6, the slider 12 is slidably connected to the swing rod 11 through an inverted L-shaped guide block 34. A groove with an opening facing right is provided on the right side of the slider 12, and an extrusion column 35 is slidably connected in the groove. The left end of the extrusion column 35 and the upper end of the guide rod 14 are respectively connected to the side walls on their corresponding sides through a reset compression spring.

[0030] In order to facilitate the sliding of the writing pen 15 and the movement of the movable block 3, an arc-shaped track groove 36 is opened on the movable block 3. The track groove 36 is coaxial with the fixed column 7. The left end of the track groove 36 is connected to the give way groove 5 and the right end is connected to the swing groove 4. The writing pen 15 passes through the track groove 36. The right side of the sliding sleeve 16 is rotatably connected to the transmission screw 37 in the up and down directions. The lower side of the transmission screw 37 is threadedly connected to the connecting block 17. A baffle 38 is provided on the lower side of the right end of the sliding sleeve 16, and the baffle 38 is in contact with the left end surface of the connecting block 17.

[0031] In order to make the rectangular frame 20 rotate along the positioning ring 19, a sliding column 39 is fixed on the side of the rectangular block away from the axis of the positioning ring 19, and an annular moving groove 40 is provided on the inner side of the positioning ring 19. The moving groove 40 opens inward and is an inverted T-shape. Two guide rail grooves 41 connected to the moving groove 40 are provided on the inner side of the positioning ring 19. A positioning block 42 is slidingly connected in the guide rail groove 41. A positioning cylinder 43 is fixed between the two positioning blocks 42. The sliding column 39 is slidingly connected to the positioning cylinder 43 and a damping pad 44 is fixed to the left end of the sliding column 39. The damping pad 44 can contact the side wall of the moving groove 40. The sliding column 39 is provided with a spring located in the moving groove 40. One side of the spring is in contact with the damping pad 44 and the other side is in contact with the positioning cylinder 43.

[0032] In order to facilitate the use of the tightening belt 21, a loop 45 is provided at the right free end of the tightening belt 21. The left free end of the tightening belt 21 passes through the loop 45 and can be connected to the right side of the tightening belt 21 via a Velcro.

[0033] When in use, the present invention is provided with a writing board 6 made of a transparent material and having a protractor scale line on one side. The writing pen 15 is connected to the connecting tube 13 by a simple plug-in and detachable connection, and the writing pen 15 can be replaced. The writing pen 15 is a common oil-based pen. The arc drawn on the writing board 6 can be erased. The upper and lower positioning rings 19 are provided with angle scale lines. By twisting the patient's body up and down, the two positioning rings 19 are driven to rotate relative to each other, thereby determining the angle of the patient's spinal rotation.

[0034] When in use, the base plate 1 is placed on the ground, and the patient stands on the base plate 1. At this time, the patient presses on the base plate 1 to prevent the support column 2 from falling down, and the weight of the floor itself will also provide a certain stability. The patient passes through the two positioning rings 19 and is located on the inner side of the tightening belt 21. Then, the limiting screw 22 is rotated. The medical staff slides the moving block 3 up and down to align the center of the positioning ring 19 on the corresponding side of the fixed column 7 with the position of the patient's 5th lumbar spinous process, and then reversely rotates the limiting screw 22 so that the limiting screw 22 drives the damping plate to squeeze the support rod, locates the position of the moving block 3, and moves the positioning ring 19 on the corresponding side of the connecting column 18 to the patient's shoulder. Then, by rotating the transmission screw 37, the transmission screw The rod 37 drives the connecting block 17 to move downward and drives the positioning ring 19 to move. When the sleeve 16 corresponds to the height of the spinous process of the 7th cervical vertebra, the transmission screw 37 is stopped. At this time, the positioning ring 19 is located at the patient's shoulder, and the left and right sides of the tightening belt 21 pass through the rectangular frame 20 on their corresponding sides, and the ring 45. At this time, the tightening belt 21 is pulled to tighten the rectangular frame 20, and the tightness is adjusted and fixed by Velcro. At this time, the sliding column 39 slides along the positioning cylinder 43 and squeezes the spring. At the same time, the damping pad 44 is in close contact with the side wall of the moving groove 40, limiting the sliding of the positioning cylinder 43 relative to the moving groove 40, inserting the writing board 6 into the give way groove 5, rotating the bolt to connect it to the driven rack 26, and fit it with the rack step surface.

[0035] When performing a flexion test, the patient faces forward and then slowly leans forward. The patient's upper body swings and drives the rectangular frame 20 and the positioning ring 19 to swing through the tightening belt 21, and then drives the swing rod 11 to swing forward around the fixed column 7. The swing rod 11 drives the slider 12 to swing forward, and the slider 12 drives the connecting tube 13 and the writing pen 15 to slide forward. At this time, the swing rod 11 is disengaged from the transmission rack 28. Under the action of the connecting compression spring, the transmission rack 28 slides forward, and because the upper end surface of the limit block 30 inserted into the limit groove 29 is an inclined surface, the rack drives When the connecting gear 27 rotates, it does not drive the transmission column 24 to rotate. In this process, under the action of the return compression spring, the extrusion column 35 pushes the slider 12 and the connecting cylinder 13 to the left, so that the writing pen 15 is pressed against the writing board 6 and the patient's swinging curve is drawn. The guide rod 14 swings forward along the ratchet 9. Due to the unidirectional rotation mechanism of the ratchet 9 and the inclined surface of the lower end surface of the guide rod 14 with a higher front and lower rear, the guide rod 14 is removed from the transverse groove of the guide groove 10 when it swings forward, and moves back and forth around the ratchet 9 on the outside of the guide block 8.

[0036] During the above process, since the connecting block 17 and the positioning ring 19 are rotationally connected, and the sliding sleeve 16 and the swing rod 11 are slidingly connected, the upper positioning ring 19 swings so that no interference occurs. When the patient swings to the limit position and resets, at this time, due to the unidirectional rotation of the ratchet 9, the rear end face of the guide rod 14 contacts the right inclined surface of the ratchet 9, so that the inclined surface of the ratchet 9 pushes the guide rod 14 to move rightward into the arc groove of the guide groove 10, and then under the action of the reset compression spring, the guide rod 14 is pushed to insert into the guide groove 10. At this time The positioning cylinder 43 moves to the right, and drives the slider 12 to move to the right via the guide block 34, causing the right return compression spring to contract, and the writing pen 15 to separate from the writing board 6. When the swing arm 11 continues to move backward, the rear end of the swing arm 11 pushes the transmission rack 28 backward to compress the connecting compression spring. The transmission rack 28 engages the connecting gear 27 and drives it to rotate counterclockwise. The connecting gear 27 drives the transmission column 24 to rotate via the limit block 30. The transmission column 24 drives the transmission gear 25 to rotate and drives the driven rack 26 to move upward, so that the writing board 6 rises.

[0037] When the swing rod 11 returns to its initial position backward, the guide rod 14 returns to the horizontal groove of the guide groove 10. At this time, under the action of the right-side return compression spring, the slider 12 and the connecting tube 13 move to the left, and drive the guide rod 14 and the writing pen 15 to move to the left and return to the initial position. At this time, the writing pen 15 contacts the writing board 6 again.

[0038] When the patient performs extension and lateral bending measurements, the patient only needs to loosen the tightening belt 21 slightly to allow the spring to drive the damping pad 44 and the sliding column 39 to move along the positioning cylinder 43 to avoid reducing the friction between the damping pad 44 and the side wall of the moving groove 40. Then the patient turns the body to drive the positioning cylinder 43 to rotate along the moving groove 40 so that the patient faces the right. Then the tightening belt 21 is tightened again. At this time, the patient performs lateral bending forward, driving the upper positioning ring 19 to swing. Through the above process, the writing pen 15 is swung, marked and reset. Then the patient loosens the tightening belt 21 again. The patient swings to the position facing backward and facing left in turn, and swings forward to complete the angle measurement after the patient swings in multiple positions, thereby judging the range of motion of the patient's lumbar spine.

[0039] After the measurement is completed, loosen the bolts and remove the writing board 6. The corresponding angle at the end of the curve is the corresponding degree of activity. Then, after erasing the arc on the writing board 6, it can be used next time. Move the handle downward to drive the insert block 32 to be removed from the slot 31, thereby releasing the unidirectional rotation limit of the transmission column 24, allowing the driven rack 26 to return to its initial position, and then reinstall the writing board 6 on the driven rack 26 with the bolts.

[0040] The present invention simplifies the lumbar spine range of motion examination process, which is beneficial for patients to continuously record the swing curves of the patient's lumbar spine in multiple directions such as flexion, extension and scoliosis through autonomous limb swing, and record the curves on a recording board with a scale, thereby avoiding the tedious operation of medical staff repeatedly using a protractor to perform manual measurements and record data, greatly reducing the workload of medical staff, facilitating the efficiency of medical staff's examinations and the intuitiveness of the results. At the same time, the patient can change to different body positions independently. After completing the measurement in one direction, the patient can adjust the position to perform the next body position test, without the need for medical staff to frequently reset the equipment, thereby simplifying the operational process of continuous measurement. At the same time, the writing board is easy to clean and reuse. The present invention has a simple structure, convenient operation, novel conception and strong usability.

Claims

1. A treatment and examination aid, comprising a base plate (1), characterized in that: A support column (2) in the up-down direction is fixed on the left side of the bottom plate (1), a moving block (3) that can slide up and down is provided on the upper side of the support column (2), a swing groove (4) with an opening facing forward and an upper end connected to the outside is provided at the front end of the moving block (3), a giving slot (5) located on the left side of the swing groove (4), a writing board (6) that can move up and down is detachably connected to the left side of the giving slot (5), a left-right axial fixed column (7) is fixed in the swing groove (4), a fan-shaped guide block (8) is coaxially fixed on the fixed column (7), a plurality of ratchets (9) uniformly distributed along the circumference of the guide block (8) are fixed on the outer edge surface of the guide block (8), the right end surface of the ratchets (9) is an inclined surface, a guide groove (10) located on the right side of the ratchets (9) is provided on the guide block (8), the guide groove (10) is opened forward and consists of an arc groove and a horizontal groove in the left and right directions, the horizontal groove is connected to the upper end of the arc groove and is located between two adjacent ratchets (9); The fixed column (7) is fixed with a swing rod (11) located on the right side of the guide block (8) and in the up and down direction. A slider (12) that can slide left and right is provided on the lower side of the swing rod (11). A connecting tube (13) is fixed to the left end of the slider (12). The connecting tube (13) opens downward and is slidably connected to a guide rod (14) that can move up and down. The lower end of the guide rod (14) is inserted into the guide groove (10) and can be inserted between two adjacent ratchet teeth (9). The lower end surface of the guide rod (14) is an inclined surface with a high front and a low back. A writing pen (15) in the left and right directions is fixed to the left end of the connecting tube (13). The writing pen (15) can be connected to the writing board (6). The writing board (6) can move upward with the swing of the swing rod (11). The upper side of the swing rod (11) is slidably connected with a sliding sleeve (16). A connecting block (17) that can move up and down is provided below the right end of the sliding sleeve (16). The right end of the connecting block (17) is rotatably connected with a connecting column (18). The right ends of the connecting column (18) and the fixed column (7) are respectively fixed with upper and lower axial positioning rings (19). Rectangular frames (20) are respectively provided on the left and right sides of the positioning ring (19). The rectangular frames (20) can slide around the circumferential direction of the positioning ring (19). The two rectangular frames (20) in the same positioning ring (19) are connected by a tightening belt (21).

2. A treatment and examination aid according to claim 1, characterized in that: The moving block (3) is slidably connected to the support column (2), the left end of the moving block (3) is threadedly connected to a limiting screw (22), the right end of the limiting screw (22) is rotatably connected to a damping block (23) and a rotating handle is fixed to the left end thereof, and the damping block (23) contacts the left end surface of the support column (2).

3. A treatment and examination aid according to claim 1, characterized in that: The upper side of the moving block (3) is rotatably connected to a transmission column (24) located in the left and right axial directions and behind the swing groove (4). A transmission gear (25) is coaxially fixed to the left end of the transmission column (24). The front side of the moving block (3) is slidably connected to a driven rack (26) in the up and down directions. The driven rack (26) is meshed with the transmission gear (25). The projection of the driven rack (26) in the up and down directions is an inverted L shape. The writing board (6) contacts the stepped surface of the driven rack (26) and is rotatably connected to the left side by two bolts. The rear end of the bolt is threadedly connected to the driven rack (26).

4. A treatment and examination aid according to claim 3, characterized in that: The right end of the transmission column (24) is coaxially provided with a connecting gear (27), and the moving block (3) is provided with a pressure groove located above the connecting gear (27) and connected to the swing groove (4) at the right end. A transmission rack (28) is slidably connected in the pressure groove. The left side of the transmission rack (28) is connected to the left side wall of the pressure groove via a connecting compression spring. The right end of the transmission rack (28) extends out of the pressure groove and is inserted into the swing groove (4). The left end of the swing rod (11) contacts the rack.

5. A treatment and examination aid according to claim 4, characterized in that: The connecting gear (27) is provided with a plurality of limiting grooves (29) uniformly distributed along its circumferential direction and opening toward its axis. A notch opening upward is provided on the upper side of the transmission column (24). A limiting block (30) is connected to the notch via a spring sheet. The upper end surface of the limiting block (30) is an inclined surface with a higher front and a lower rear, and can be inserted into the limiting groove (29).

6. A treatment and examination aid according to claim 3, characterized in that: The transmission column (24) is provided with a plurality of slots (31) with openings facing outwards, and the moving block (3) is provided with a rectangular groove located below the transmission column (24), and an insert block (32) is slidably connected in the rectangular groove, and the lower end of the insert block (32) is connected to the side wall of the rectangular groove through a V-shaped elastic sheet, and the upper end surface of the insert block (32) is an inclined surface with a higher front and a lower rear, and a pull rope (33) is fixed to the lower end of the insert block (32), and the lower free end of the pull rope (33) passes through the moving block (3) and is provided with a pull handle.

7. A treatment and examination aid according to claim 1, characterized in that: The slider (12) is slidably connected to the swing rod (11) via an inverted L-shaped guide rail block (34). A groove with an opening facing right is provided on the right side of the slider (12). An extrusion column (35) is slidably connected in the groove. The left end of the extrusion column (35) and the upper end of the guide rod (14) are respectively connected to the side wall on the corresponding side via a return compression spring.

8. The treatment and examination aid according to claim 1, characterized in that: The movable block (3) is provided with an arc-shaped track groove (36), which is coaxial with the fixed column (7). The left end of the track groove (36) is connected with the yield groove (5) and the right end is connected with the swing groove (4). The writing pen (15) passes through the track groove (36). The right side of the sliding sleeve (16) is rotatably connected with a transmission screw (37) in the up and down directions. The lower side of the transmission screw (37) is threadedly connected with the connecting block (17). A baffle (38) is provided on the lower side of the right end of the sliding sleeve (16), and the baffle (38) contacts the left end surface of the connecting block (17).

9. The treatment and examination aid according to claim 1, characterized in that: A sliding column (39) is fixed on one side of the rectangular block away from the axis of the positioning ring (19); an annular moving groove (40) is provided on the inner side of the positioning ring (19); the moving groove (40) opens inward and is in an inverted T shape; two guide rail grooves (41) connected to the moving groove (40) are provided on the inner side of the positioning ring (19); a positioning block (42) is slidably connected in the guide rail groove (41); a positioning cylinder (43) is fixed between the two positioning blocks (42); the sliding column (39) is slidably connected to the positioning cylinder (43) and a damping pad (44) is fixed on the left end of the sliding column (39); the damping pad (44) can contact the side wall of the moving groove (40); a spring located in the moving groove (40) is set on the sliding column (39); one side of the spring contacts the damping pad (44) and the other side contacts the positioning cylinder (43).

10. The treatment and examination aid according to claim 1, characterized in that: The right free end of the tightening belt (21) is provided with a ring (45), and the left free end of the tightening belt (21) passes through the ring (45) and can be connected to the right side thereof via a Velcro.

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