Eccentric skull traction device

Abstract

The invention discloses an eccentric skull traction device which comprises an installation plate (1) and a traction bow (2), the installation plate (1) is arranged in the vertical direction, the two ends of the top face of the installation plate (1) are each fixedly provided with a bed head connecting assembly, two tension applying devices are movably installed on the installation plate (1), and a movable U-shaped connecting block (3) is arranged on the traction bow (2). And the U-shaped connecting block (3) is connected with one of the pulling force applying devices through a pulling rope (4). Accurate pulling force can be provided, the horizontal position and the position of a traction bow connecting point can be adjusted, and the correction effect is effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to a traction device, in particular an eccentric skull traction device. BACKGROUND

[0002] Patients with cervical scoliosis deformity, especially from the skull base to the cervical 2-3 segment cranial region deformity, including atlantoaxial scoliosis deformity, rotary dislocation, hemivertebra deformity, segmentation, etc. This type of deformity is caused by development, so in addition to bony deformity, soft tissue / muscle spasticity is also involved in cervical scoliosis deformity, so before surgery, skull traction is required.

[0003] At present, the traction device is used for traction, and when traction is performed, holes are drilled on the left and right sides of the skull of the patient, and then bolts are fixed, and a traction bow is installed on the skull of the patient, then a suitable weight of the weight is selected, the weight is connected with the traction bow through a thin line, the thin line is redirected through a fixed pulley arranged on the head of the bed, so that the weight is suspended in the air, the traction bow is pulled by the weight, and the purpose of traction is achieved. The current device is too simple, the weight cannot provide accurate traction force value, and after the patient's body or head is displaced during treatment, the position of the fixed pulley cannot be changed, which affects the correction effect. In addition, the current traction bow has only one connection point of the fixed rope, and for patients with different degrees of cervical scoliosis deformity, the best connection position is not fixed, but the existing traction bow cannot adjust the connection position. SUMMARY

[0004] The purpose of the present application is to provide an eccentric skull traction device to solve the technical problems in the prior art, which can provide accurate tension and adjust the horizontal position and the position of the traction bow connection point, effectively improve the correction effect.

[0005] The present application provides an eccentric skull traction device, comprising a mounting plate and a traction bow, the mounting plate is arranged in a vertical direction, two bed head connecting assemblies are fixedly arranged at the top surface of the mounting plate, two tension applying devices are movably arranged on the mounting plate, a movable U-shaped connecting block is arranged on the traction bow, and the U-shaped connecting block is connected with one of the tension applying devices through a traction rope.

[0006] In the foregoing eccentric skull traction device, preferably, the two bed head connecting assemblies are completely same in structure, the bed head connecting assembly comprises a connecting rod and a hook, the connecting rod is arranged in a vertical direction, the lower end of the connecting rod is fixedly connected with the top surface of the mounting plate, and the upper end of the connecting rod is fixedly connected with the hook.

[0007] Preferably, the connecting rod is provided with a stopper mounting plate on the side facing the bed, the first hand screw is threadedly connected to the stopper mounting plate, the axial direction of the first hand screw is horizontal, and the end of the first hand screw is rotatably connected with a stopper.

[0008] Preferably, the two tension applying devices are identical in structure, and each of the tension applying devices comprises a vertical mounting plate, a horizontal mounting plate, an electric telescopic rod, a tension sensor, a support arm and a grooved pulley, one end of the horizontal mounting plate is fixedly connected to the lower end of the vertical mounting plate, a first mounting seat is fixedly arranged on the top surface of the other end of the horizontal mounting plate, the lower end of the electric telescopic rod is rotatably arranged on the first mounting seat, the telescopic end of the electric telescopic rod is connected to one end of the tension sensor, the other end of the tension sensor is connected to the traction rope, a second mounting seat is fixedly arranged on the upper end of the vertical mounting plate, one end of the support arm is rotatably connected to the second mounting seat, and the grooved pulley is rotatably arranged on the other end of the support arm.

[0009] Preferably, the second mounting seat is composed of two plate bodies, a through hole is arranged on one of the plate bodies, a first threaded hole is arranged on the other plate body, a shaft sleeve is fixedly arranged on one end of the support arm, and a second hand screw is threadedly connected to the first threaded hole after passing through the through hole and the shaft sleeve in sequence; a U-shaped pulley mounting seat is fixedly arranged on the other end of the support arm, and the grooved pulley is rotatably arranged on the U-shaped pulley mounting seat through a rotating shaft.

[0010] Preferably, two dovetail grooves are arranged on the mounting plate, the two dovetail grooves are arranged in the horizontal direction, two dovetail-shaped sliding blocks are fixedly arranged on the vertical mounting plate, and the two dovetail-shaped sliding blocks are slidably matched with the two dovetail grooves.

[0011] Preferably, a row of positioning holes is arranged below the mounting plate, the positioning holes are equally spaced in the horizontal direction, a third hand screw is threadedly connected to the vertical mounting plate, and the third hand screw is insertedly matched with the positioning holes.

[0012] Preferably, a control panel is fixedly arranged on the vertical mounting plate, a PLC programmable controller is fixedly arranged on the side of the mounting plate facing the bed, and the control panel, the electric telescopic rod and the tension sensor are electrically connected to the PLC programmable controller.

[0013] Preferably, the traction bow is a U-shaped traction bow, and sliding grooves are arranged on the top surface and the bottom surface of the traction bow; two connecting columns are fixedly arranged on the U-shaped connecting block, and the two connecting columns are respectively inserted into and slidably connected with the two sliding grooves; a fourth hand screw bolt is threadedly connected with the top of the U-shaped connecting block; and a connecting ring is fixedly arranged on the end of the U-shaped connecting block, and one end of the traction rope is fixedly connected with the connecting ring.

[0014] Preferably, the two ends of the traction bow are threadedly connected with connecting screw rods, one end of the connecting screw rod is provided with a nut, and the other end of the connecting screw rod is provided with a second threaded hole.

[0015] Compared with the prior art, the movable tension applying device is arranged on the mounting plate, the position of the tension applying device can be adjusted according to requirements, the traction direction of the traction rope is adjusted without changing the position of the human body, the traction rope is ensured to be in the optimal position, the tension applying device of the present application can freely adjust the tension according to requirements, the tension is more accurate, and the correction effect is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the isometric view of the overall structure of the present application;

[0017] Figure 2 is the structural schematic view of the mounting plate and the head connection assembly of the present application;

[0018] Figure 3 is the exploded view of the tension applying device of the present application;

[0019] Figure 4 is the isometric view of the traction bow of the present application;

[0020] Figure 5 is the reference view of the use state of the present application.

[0021] BRIEF DESCRIPTION OF DRAWINGS: mounting plate 1, traction bow 2, U-shaped connecting block 3, traction rope 4, connecting rod 5, hook 6, sickbed 7, stop block mounting plate 8, first hand screw bolt 9, stop block 10, vertical mounting plate 11, horizontal mounting plate 12, electric telescopic rod 13, tension sensor 14, support arm 15, grooved pulley 16, first mounting seat 17, second mounting seat 18, shaft sleeve 19, second hand screw bolt 20, U-shaped pulley mounting seat 21, dovetail groove 22, dovetail-shaped sliding block 23, positioning hole 24, third hand screw bolt 25, control panel 26, PLC programmable controller 27, sliding groove 28, second threaded hole 29, connecting column 30, fourth hand screw bolt 31, connecting ring 32, connecting screw rod 33, nut 34, locking nut 35. DETAILED DESCRIPTION

[0022] Embodiments of the present application are described in detail below with reference to the attached drawing figures, wherein the same or like component have the same or similar designations. The embodiments described below are presented by way of example only and are not intended to be limiting of the application.

[0023] Embodiments of the present application: as shown in Figures 1-5 A eccentric skull traction device, comprising a mounting plate 1 and a traction bow 2, the mounting plate 1 is arranged along the vertical direction, the top surface of the mounting plate 1 is respectively fixed with a head of bed connecting assembly at both ends, the mounting plate 1 is movably mounted with two tension applying devices, the traction bow 2 is provided with a movable U-shaped connecting block 3, the U-shaped connecting block 3 is connected with one of the tension applying devices through a traction rope 4.

[0024] The mounting plate 1 is the installation platform of the tension applying device, the horizontal position of the tension applying device on the mounting plate 1 is adjustable, on the one hand, it can improve the application range, on the other hand, it can adjust the angle of the traction rope 4 without adjusting the position of the patient, so that the traction rope 4 is at the best angle, and the traction effect is guaranteed. The tension applying device is used for applying tension. The head of bed connecting assembly is used for connecting with the head of bed 7, so that the present application is fixed outside the head of bed.

[0025] Specifically, the two head of bed connecting assemblies are completely the same in structure, the head of bed connecting assembly comprises a connecting rod 5 and a hook 6, the connecting rod 5 is arranged along the vertical direction, the lower end of the connecting rod 5 is fixedly connected with the top surface of the mounting plate 1, and the upper end of the connecting rod 5 is fixedly connected with the hook 6.

[0026] It should be noted that when the patient is treated by the eccentric skull traction, the patient needs to lie on the bed as shown in Figure 1 The bed head of the bed is a fence structure, and the bed with a flat structure bed head cannot be used.

[0027] The hook 6 at the top end of the two connecting rods 5 can hang the present application on the head of bed 7, the bed 7 is a prior art and does not belong to the protection scope of the present application. In some preferred embodiments, the connecting rod 5 can be replaced by a telescopic rod with adjustable length.

[0028] Further, the face of the connecting rod 5 towards the bed 7 is fixedly provided with a block mounting plate 8, the block mounting plate 8 is threadedly connected with a first hand screw bolt 9, the axial direction of the first hand screw bolt 9 is horizontal, and the end portion of the first hand screw bolt 9 is rotatably connected with a block 10. The end portion of the block 10 is formed with an arc-shaped groove, and the block 10 is preferably made of rubber.

[0029] By rotating the first hand screw bolt 9, the block 10 can abut against the vertical fence rod on the head of bed, so that the present application cannot move in the left-right direction.

[0030] The two tension applying devices are completely same in structure, and each of the tension applying devices comprises a vertical mounting plate 11, a horizontal mounting plate 12, an electric telescopic rod 13, a tension sensor 14, a supporting arm 15 and a grooved pulley 16, one end of the horizontal mounting plate 12 is fixedly connected with the lower end of the vertical mounting plate 11, a first mounting seat 17 is fixedly arranged on the top surface of the other end of the horizontal mounting plate 12, the lower end of the electric telescopic rod 13 is rotatably arranged on the first mounting seat 17, the telescopic end of the electric telescopic rod 13 is connected with one end of the tension sensor 14, the other end of the tension sensor 14 is connected with the traction rope 4, the upper end of the vertical mounting plate 11 is fixedly provided with a second mounting seat 18, one end of the supporting arm 15 is rotatably connected with the second mounting seat 18, and the grooved pulley 16 is rotatably arranged on the other end of the supporting arm 15.

[0031] The electric telescopic rod 13 and the tension sensor 14 are all commercially available products, which can be purchased, the electric telescopic rod 13 is used for providing tension, and the tension sensor 14 is used for detecting the size of the tension, so that the doctor can clearly know the real-time tension on the traction rope 4.

[0032] In order to ensure the structural strength of the horizontal mounting plate 12, two triangular reinforcing rib plates are arranged at the connecting position of the horizontal mounting plate 12 and the vertical mounting plate 11.

[0033] The second mounting seat 18 is composed of two plate bodies, one of the plate bodies is provided with a through hole, the other plate body is provided with a first threaded hole, one end of the supporting arm 15 is fixedly provided with a shaft sleeve 19, and a second hand screw bolt 20 is threadedly connected with the first threaded hole in sequence after passing through the through hole and the shaft sleeve 19; the other end of the supporting arm 15 is fixedly provided with a U-shaped pulley mounting seat 21, and the grooved pulley 16 is rotatably arranged on the U-shaped pulley mounting seat 21 through a rotating shaft.

[0034] The second hand screw bolt 20 can be loosened to adjust the angle of the supporting arm 15, the height of the grooved pulley 16 can be changed by adjusting the angle of the supporting arm 15, so that the traction rope 4 is in a horizontal state. After the angle of the supporting arm 15 is adjusted, the second hand screw bolt 20 is tightened, the two plate bodies on the two second mounting seats 18 clamp the shaft sleeve 19, and the angle of the supporting arm 15 is fixed.

[0035] Two dovetail grooves 22 are arranged on the mounting plate 1, the two dovetail grooves 22 are both arranged in the horizontal direction, two dovetail-shaped sliding blocks 23 are fixedly arranged on the vertical mounting plate 11, and the two dovetail-shaped sliding blocks 23 are in sliding fit with the two dovetail grooves 22.

[0036] A row of positioning holes 24 are arranged below the mounting plate 1, the positioning holes 24 are equally distributed in the horizontal direction, a third hand screw bolt 25 is threadedly connected with the vertical mounting plate 11, and the third hand screw bolt 25 is in plug-in fit with the positioning holes 24.

[0037] The position of the vertical mounting plate 11 can be fixed by the cooperation of the third hand screw bolt 25 and the positioning hole 24, so as to prevent the vertical mounting plate 11 from moving freely in the horizontal direction. When the position of the vertical mounting plate 11 needs to be adjusted, the third hand screw bolt 25 is only loosened.

[0038] The control panel 26 is fixed on the vertical mounting plate 11, and the PLC programmable controller 27 is fixed on the surface of the mounting plate 1 facing the hospital bed 7. The control panel 26, the electric telescopic rod 13 and the tension sensor 14 are electrically connected with the PLC programmable controller 27. It should be noted that the connection wires of the parts and the PLC programmable controller 27 are not shown in the figure.

[0039] The control panel 26 has mechanical buttons and a display screen (not shown in the figure), and the size of the tension can be set through the mechanical buttons. The set tension value and the tension value detected by the tension sensor 14 can be displayed through the display. The PLC programmable controller 27 and the control panel 26 are both prior art.

[0040] Further, the traction bow 2 is a U-shaped traction bow, and the top surface and the bottom surface of the traction bow 2 are both provided with a sliding groove 28. Two connecting columns 30 are fixed on the U-shaped connecting block 3, and the two connecting columns 30 are respectively inserted into and slidably connected with the two sliding grooves 28. A fourth hand screw bolt 31 is threadedly connected to the top of the U-shaped connecting block 3, and a connecting ring 32 is fixed to the end of the U-shaped connecting block 3. One end of the traction rope 4 is fixedly connected with the connecting ring 32.

[0041] Through the cooperation of the connecting column 30 and the sliding groove 28, the position of the U-shaped connecting block 3 can be adjusted, so that the position of the traction rope 4 on the traction bow 2 is more reasonable, thereby improving the correction effect.

[0042] The two ends of the traction bow 2 are both threadedly connected with a connecting screw 33. One end of the connecting screw 33 is provided with a nut 34, and the other end of the connecting screw 33 is provided with a second threaded hole 29. The connecting screw 33 is used to be threadedly connected with the stud fixed on the skull of the patient. In the embodiment, a locking nut 35 is also threadedly connected with the connecting screw 33, and the position of the connecting screw 33 can be prevented from being changed through the locking nut 35.

[0043] An eccentric skull traction method: the product is hung on the head of the hospital bed 7 through the two hooks 6, and then the two first hand screw bolts 9 are rotated to make the two blocking blocks 10 abut against the vertical rail on the head of the bed. After being tightened, the mounting plate 1 cannot move in the left-right direction.

[0044] Then loosen the two locking nuts 35, adjust the distance between the two connecting rods 33, put the traction bow 2 on the patient's head, then rotate the connecting rods 33 through the nuts 34, make the second threaded hole 29 on the connecting rods 33 connect with the connecting rod fixed on the patient's skull, and then fix the two connecting rods 33 through the locking nuts 35 so that the connecting rods 33 cannot rotate freely.

[0045] Then loosen the fourth hand screw 31, adjust the position of the U-shaped connecting block 3, and align it with the central axis of the human body. After adjusting the position, tighten the fourth hand screw 31 so that the U-shaped connecting block 3 cannot move further. Connect one end of the traction rope 4 with the connecting ring 32, then adjust the horizontal position of one of the tension applying devices so that the grooved pulley 16 on it is aligned with the connecting ring 32. The adjustment method is to loosen the third hand screw 25 and move the vertical connecting plate 11. When the grooved pulley 16 is aligned with the connecting ring 32, tighten the third hand screw 25, and the vertical connecting plate 11 is fixed on the mounting plate 1. The other end of the traction rope 4 is fixedly connected with the tension sensor 14 after passing through the grooved pulley 16. At this time, the electric telescopic rod 13 should be in the maximum extension position, that is, the total length of the electric telescopic rod 13 is at the maximum value. Manually operate the control panel 26 to set the tension value, then press the start button, and the PLC programmable controller 27 receives the set tension value and the start signal to control the electric telescopic rod 13 to retract. The tension sensor 14 measures the tension value on the traction rope 4 in real time and sends the tension signal to the PLC programmable controller 27. When the tension value is equal to the set tension value, the PLC programmable controller 27 controls the electric telescopic rod 13 to stop retracting. If the patient moves his head or body and causes the tension value to change, if the tension value increases, the PLC programmable controller 27 controls the electric telescopic rod 13 to extend until the tension value equals the set tension value. If the tension value decreases, the PLC programmable controller 27 controls the electric telescopic rod 13 to retract until the tension value equals the set tension value. The set tension value and the current tension value are displayed on the display screen of the control panel 26 for the doctor to check.

[0046] Another traction rope 4 is also needed for eccentric skull traction. If the patient's head is tilted to the left, the traction rope 4 is needed to connect the left connecting rod 33. If the patient's head is tilted to the right, the traction rope 4 is needed to connect the right connecting rod 33. Similarly, the position of the other tension applying device also needs to be adjusted so that the grooved pulley 16 on it is aligned with the connection point of the traction rope 4 and the connecting rod 33. The adjustment method is the same as above. Then set the tension value as required.

[0047] The above detailed description of the structure, features and effects of the present application is based on the embodiments shown in the drawings. The above description is only the preferred embodiments of the present application, but the present application is not limited to the embodiments shown in the drawings. Any changes or modifications made in accordance with the concept of the present application, or equivalent embodiments with equivalent changes, are still within the scope of the present application.

Claims

1. An eccentric cranial traction device, comprising a mounting plate (1) and a traction bow (2), wherein the mounting plate (1) is arranged in a vertical direction, characterized in that: A headboard connecting assembly is fixed at both ends of the top surface of the mounting plate (1). Two tension applying devices are movably mounted on the mounting plate (1). A movable U-shaped connecting block (3) is provided on the traction bow (2). The U-shaped connecting block (3) is connected to one of the tension applying devices through a traction rope (4).

2. The eccentric cranial traction device according to claim 1, characterized in that: The two headboard connection assemblies have the same structure. The headboard connection assembly includes a connecting rod (5) and a hook (6). The connecting rod (5) is arranged in a vertical direction. The lower end of the connecting rod (5) is fixedly connected to the top surface of the mounting plate (1), and the upper end of the connecting rod (5) is fixedly connected to the hook (6).

3. The eccentric cranial traction device according to claim 2, characterized in that: The connecting rod (5) is fixed with a stop plate (8) on the surface facing the hospital bed (7). A first hand-tightening bolt (9) is threaded onto the stop plate (8). The axial direction of the first hand-tightening bolt (9) is horizontal. A stop (10) is rotatably connected to the end of the first hand-tightening bolt (9).

4. The eccentric cranial traction device according to claim 1, characterized in that: The two tension application devices have the same structure. The tension application device includes a vertical mounting plate (11), a horizontal mounting plate (12), an electric telescopic rod (13), a tension sensor (14), a support arm (15), and a grooved pulley (16). One end of the horizontal mounting plate (12) is fixedly connected to the lower end of the vertical mounting plate (11). A first mounting seat (17) is fixedly provided on the top surface of the other end of the horizontal mounting plate (12). The lower end of the electric telescopic rod (13) is rotatably mounted on the first mounting seat (17) through a rotating shaft. The telescopic end of the electric telescopic rod (13) is connected to one end of the tension sensor (14). The other end of the tension sensor (14) is connected to the traction rope (4). A second mounting seat (18) is fixedly provided on the upper end of the vertical mounting plate (11). One end of the support arm (15) is rotatably connected to the second mounting seat (18). The grooved pulley (16) is rotatably mounted on the other end of the support arm (15).

5. The eccentric cranial traction device according to claim 4, characterized in that: The second mounting base (18) consists of two plates, one of which has a through hole and the other has a first threaded hole. One end of the support arm (15) is fixed with a bushing (19), and the second hand-tightening bolt (20) passes through the through hole and the bushing (19) in sequence and is threaded to the first threaded hole. The other end of the support arm (15) is fixed with a U-shaped pulley mounting base (21), and the grooved pulley (16) is rotatably mounted on the U-shaped pulley mounting base (21) through a rotating shaft.

6. The eccentric cranial traction device according to claim 4, characterized in that: The mounting plate (1) has two dovetail grooves (22), both of which are horizontal. The vertical mounting plate (11) has two dovetail sliders (23), which slide in cooperation with the two dovetail grooves (22).

7. The eccentric cranial traction device according to claim 6, characterized in that: A row of positioning holes (24) is provided below the mounting plate (1). The positioning holes (24) are evenly distributed in the horizontal direction. A third hand-tightening bolt (25) is threaded on the vertical mounting plate (11). The third hand-tightening bolt (25) is inserted into the positioning hole (24).

8. The eccentric cranial traction device according to claim 4, characterized in that: A control panel (26) is fixed on the vertical mounting plate (11). A PLC programmable controller (27) is fixed on the surface of the mounting plate (1) facing the hospital bed (7). The control panel (26), the electric telescopic rod (13) and the tension sensor (14) are all electrically connected to the PLC programmable controller (27).

9. The eccentric cranial traction device according to claim 8, characterized in that: The traction bow (2) is a U-shaped traction bow. Slide grooves (28) are provided on the top and bottom surfaces of the traction bow (2). Two connecting posts (30) are fixed on the U-shaped connecting block (3). The two connecting posts (30) are respectively inserted into and slidably connected to the two slide grooves (28). A fourth hand-tightening bolt (31) is threadedly connected to the top of the U-shaped connecting block (3). A connecting ring (32) is fixed at the end of the U-shaped connecting block (3). One end of the traction rope (4) is fixedly connected to the connecting ring (32).

10. The eccentric cranial traction device according to claim 9, characterized in that: Both ends of the traction bow (2) are threaded with connecting screws (33), one end of the connecting screw (33) has a nut (34), and the other end of the connecting screw (33) has a second threaded hole (29).

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