Orthopedic distractor

Abstract

The utility model provides an orthopaedic distractor, which relates to the technical field of medical instruments and comprises a base, support rods are symmetrically and fixedly connected to the top of the base, one end of each support rod can be fixedly connected with a same connecting rod, a height adjusting device can be arranged on the outer surface of each support rod, and the height adjusting devices can be used for adjusting the height of each support rod. The height adjusting device comprises two screw hole blocks, and the inner walls of the screw hole blocks are arranged on the outer surfaces of the supporting rods. A first threaded rod and a second threaded rod can respectively drive a baffle connected with an extension block to synchronously move in opposite directions at the top of the placing plate, so that the distance between the two baffles can be conveniently adjusted according to the width of the jaw of the patient, the two baffles can effectively limit the jaw of the patient, and the safety of the patient is improved. Furthermore, the problem that the jaw of the patient shifts on the placing plate can be prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to an orthopedic distractor. Background Art

[0002] An orthopedic distraction device, also known as a traction device, is an auxiliary device used during surgical operations and postoperative recovery. It can reduce the compression and friction of the spinal cord on the nerve roots, relieve neck muscle spasms, relieve pain symptoms, relieve the compression of the vertebrae on the vertebral arteries, promote blood circulation, and restore the normal function of the cervical spine.

[0003] When using a distraction device, the patient is required to place his or her chin on a placement board, but there is no direct limit between the placement board and the patient's chin. As a result, during the distraction treatment, the patient's chin may shift on the placement board, which may cause the distraction position to become skewed, which may adversely affect the effect of the distraction treatment. Summary of the invention

[0004] The utility model is an orthopedic distractor proposed to solve the problem that during distraction treatment, the patient's chin may shift on the placement board, thereby causing the distraction position to be skewed, which may have an adverse effect on the effect of the distraction treatment.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an orthopedic distractor, comprising a base, a support rod symmetrically fixedly connected to the top of the base, one end of the support rod can be fixedly connected to the same connecting rod, and a height adjustment device can be arranged on the outer surface of the support rod, the height adjustment device comprises two screw hole blocks, the inner wall of the screw hole block is arranged on the outer surface of the support rod, the outer surface of the screw hole block is fixedly connected to a chain ring, one end of the chain ring is fixedly connected to a distraction belt, one end of the two distraction belts is fixedly connected to the same placement plate, and a limiting device is arranged on the top of the placement plate, the limiting device comprises two baffles, the two baffles are symmetrically arranged on the top of the placement plate, one side of the baffle is fixedly connected to an extension block, the inner walls of the two extension blocks are respectively threadedly connected to a first threaded rod and a second threaded rod, the first threaded rod and the second threaded rod are fixedly connected at one end thereof, the threads of the first threaded rod and the second threaded rod are the same in size and opposite in direction, and the outer surfaces of the first threaded rod and the second threaded rod are provided with a connecting block, and one side of the two connecting blocks is symmetrically fixedly connected to one side of the placement plate.

[0006] The effect achieved by the above-mentioned components is: by setting two baffles, under the action of the first threaded rod and the second threaded rod, the first threaded rod and the second threaded rod will respectively drive a baffle connected to the extension block to move synchronously toward each other on the top of the placement plate, so that it is convenient to adjust the distance between the two baffles according to the width of the patient's chin, so that the two baffles can effectively limit the patient's chin, thereby preventing the patient's chin from shifting on the placement plate, which will cause the distraction position to be skewed and cause adverse effects on the effect of distraction therapy.

[0007] Preferably, bearings are fixedly connected to the outer surfaces of the first threaded rod and the second threaded rod, and the outer surfaces of the bearings are fixedly connected to the inner wall of the connecting block.

[0008] The effect achieved by the above components is that by setting the bearing, the friction between the first threaded rod and the second threaded rod and the connecting block when rotating can be reduced, thereby making it more labor-saving when rotating the first threaded rod and the second threaded rod.

[0009] Preferably, the ends of the first threaded rod and the second threaded rod that are away from each other are both fixedly connected to an operating block, and a protrusion is provided on the outer surface of the operating block.

[0010] The effect achieved by the above-mentioned components is: by setting the operating block, rotating the operating block can drive the first threaded rod and the second threaded rod to rotate, and at the same time, the outer surface of the operating block is provided with a protrusion, which can effectively increase the friction force of the outer surface of the operating block, and has an anti-slip effect when rotating the operating block, thereby facilitating the rotation of the first threaded rod and the second threaded rod through the operating block.

[0011] Preferably, a slider is fixedly connected to one side of the baffle, a slide groove is provided on one side of the placement plate, and outer surfaces of the two sliders are slidably connected to the inner wall of the slide groove.

[0012] The effect achieved by the above components is: by setting the slider and the slide groove, when the baffle moves, the baffle will drive the slider to slide synchronously on the inner wall of the slide groove, which can limit the baffle.

[0013] Preferably, the adjacent sides of the two baffles are fixedly connected with rubber plates, and grooves are evenly formed on one side of the rubber plates.

[0014] The effect achieved by the above components is: by providing a rubber plate with grooves, the friction force on one side of the baffle can be increased, so that the baffle has an anti-slip effect when clamping the patient's chin, and at the same time plays a certain protective role on the patient's chin.

[0015] Preferably, the outer surface of the support rod is slidably connected to the inner wall of the screw hole block, a plurality of insertion holes are evenly opened on the outer surface of the support rod, a threaded pin is threadedly inserted into the inner wall of the screw hole block, and the outer surface of the threaded pin is inserted into the inner wall of one of the insertion holes.

[0016] The effect achieved by the above-mentioned components is: by setting the screw hole block, pushing the screw hole block to shift on the support rod until it reaches the appropriate position, the screw hole block will drive the placement plate connected to the chain ring and the tension belt to move synchronously in the vertical direction, and then insert the threaded pin into the inner wall of the screw hole block, rotate the threaded pin so that the threaded pin enters the inner wall of the corresponding socket, and the height of the placement plate can be fixed, and then the height of the placement plate can be adjusted according to the actual needs of the patient, thereby improving the practicality of the tensioner.

[0017] Preferably, a sleeve is fixedly connected to the outer surface of the support rod, and one end of the sleeve is fixedly connected to the top of the base.

[0018] The effect achieved by the above components is: by setting the sleeve, one end of the sleeve can block the screw hole block, thereby preventing the problem of the distractor being unable to be used normally due to excessive adjustment.

[0019] Preferably, one end of the threaded pin is fixedly connected to a rotating block, one side of the rotating block is fixedly connected to an elastic rope, and a first end of the elastic rope is fixedly connected to an outer surface of the connecting rod.

[0020] The effect achieved by the above components is: by setting an elastic rope, the rotating block connected to the threaded pin is connected to the connecting rod, which is helpful to prevent the threaded pin from being lost after it is separated from the screw hole block and the inner wall of the socket.

[0021] Compared with the prior art, the advantages and positive effects of the utility model are as follows: in the utility model, by setting two baffles, under the action of the first threaded rod and the second threaded rod, the first threaded rod and the second threaded rod can respectively drive a baffle connected to the extension block to move synchronously toward each other on the top of the placement plate, so that it is convenient to adjust the distance between the two baffles according to the width of the patient's chin, so that the two baffles can effectively limit the patient's chin, thereby preventing the patient's chin from shifting on the placement plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the main body of the utility model;

[0023] Figure 2 It is a three-dimensional structural schematic diagram of the base of the utility model;

[0024] Figure 3 For this utility model Figure 2A schematic diagram of the enlarged structure at point A;

[0025] Figure 4 It is a three-dimensional structural schematic diagram of the baffle of the utility model;

[0026] Figure 5 For this utility model Figure 4 A schematic diagram of the enlarged structure at B;

[0027] In the figure: 1. base; 2. support rod; 3. connecting rod; 4. height adjustment device; 41. screw hole block; 42. socket; 43. threaded pin; 44. sleeve; 45. rotating block; 46. elastic rope; 5. chain link; 6. tension belt; 7. placement plate; 8. limit device; 81. baffle; 82. extension block; 83. first threaded rod; 84. second threaded rod; 85. connecting block; 86. bearing; 87. operating block; 88. slider; 89. slide groove; 810. rubber plate. DETAILED DESCRIPTION

[0028] Example 1, reference Figure 1-Figure 3 As shown, the present embodiment discloses an orthopedic distractor, comprising a base 1, a support rod 2 is symmetrically fixedly connected to the top of the base 1, one end of the support rod 2 is fixedly connected to the same connecting rod 3, a height adjustment device 4 is arranged on the outer surface of the support rod 2, the height adjustment device 4 comprises two screw hole blocks 41, the inner wall of the screw hole block 41 is arranged on the outer surface of the support rod 2, a chain ring 5 is fixedly connected to the outer surface of the screw hole block 41, one end of the chain ring 5 is fixedly connected to a distraction belt 6, one end of the two distraction belts 6 is fixedly connected to the same placement plate 7, a limiting device 8 is arranged on the top of the placement plate 7, the limiting device 8 comprises two baffles 81, the two baffles 81 are symmetrically arranged on the top of the placement plate 7, one side of the baffle 81 is fixedly connected to an extension block 82, the inner walls of the two extension blocks 82 are respectively threadedly connected to a first threaded rod 83 and a second threaded rod 84, the first threaded rod 83 and the second threaded rod 84 are close to each other One end is fixedly connected, the threads of the first threaded rod 83 and the second threaded rod 84 are of the same size and opposite direction, and the outer surfaces of the first threaded rod 83 and the second threaded rod 84 are provided with connecting blocks 85, and one side of the two connecting blocks 85 is symmetrically fixedly connected to one side of the placement plate 7. By setting two baffles 81, under the action of the first threaded rod 83 and the second threaded rod 84, the first threaded rod 83 and the second threaded rod 84 are rotated, and the first threaded rod 83 and the second threaded rod 84 will respectively drive a baffle 81 connected to the extension block 82 to move synchronously toward each other on the top of the placement plate 7, so that it is convenient to adjust the distance between the two baffles 81 according to the width of the patient's chin, so that the two baffles 81 can effectively limit the patient's chin, thereby preventing the patient's chin from shifting on the placement plate 7, which will cause the distraction position to be skewed and cause adverse effects on the effect of distraction therapy.

[0029] Reference Figure 2-Figure 4 As shown, the outer surfaces of the first threaded rod 83 and the second threaded rod 84 are fixedly connected with bearings 86, and the outer surfaces of the bearings 86 are fixedly connected with the inner wall of the connecting block 85. By providing the bearings 86, the friction between the first threaded rod 83 and the second threaded rod 84 and the connecting block 85 can be reduced when rotating, thereby making it easier to rotate the first threaded rod 83 and the second threaded rod 84; the ends of the first threaded rod 83 and the second threaded rod 84 that are away from each other are fixedly connected with an operating block 87, and the outer surface of the operating block 87 is provided with a protrusion. By providing the operating block 87, rotating the operating block 87 can drive the first threaded rod 83 and the second threaded rod 84 to rotate. At the same time, the outer surface of the operating block 87 is provided with a protrusion, which can effectively increase the friction of the outer surface of the operating block 87, and has an anti-slip effect when rotating the operating block 87, thereby facilitating the rotation of the first threaded rod 83 and the second threaded rod 84 through the operating block 87.

[0030] Reference Figure 2-Figure 5 As shown, a slider 88 is fixedly connected to one side of the baffle 81, and a slide groove 89 is provided on one side of the placement plate 7. The outer surfaces of the two sliders 88 are slidably connected to the inner wall of the slide groove 89. By setting the slider 88 and the slide groove 89, when the baffle 81 moves, the baffle 81 will drive the slider 88 to slide synchronously on the inner wall of the slide groove 89, which can limit the baffle 81; the two baffles 81 are fixedly connected to the side close to each other with a rubber plate 810, and grooves are evenly provided on one side of the rubber plate 810. By setting the rubber plate 810 with grooves, the friction force on one side of the baffle 81 can be increased, so that the baffle 81 has an anti-slip effect when clamping the patient's chin, and at the same time, it has a certain protective effect on the patient's chin.

[0031] Reference Figure 2 and Figure 4 As shown, the outer surface of the support rod 2 is slidably connected with the inner wall of the screw hole block 41, and a plurality of insertion holes 42 are evenly opened on the outer surface of the support rod 2. The inner wall of the screw hole block 41 is threadedly inserted with a threaded pin 43, and the outer surface of the threaded pin 43 is inserted into the inner wall of one of the insertion holes 42. By setting the screw hole block 41, the screw hole block 41 is pushed to shift on the support rod 2 until it reaches a suitable position. The screw hole block 41 will drive the placement plate 7 connected to the chain ring 5 and the tensioning belt 6 to move synchronously in the vertical direction, and then the threaded pin 43 is inserted into the inner wall of the screw hole block 41, and the threaded pin 43 is rotated so that the threaded pin 43 enters the inner wall of the corresponding insertion hole 42, so that the height of the placement plate 7 can be fixed, and then the height of the placement plate 7 can be adjusted according to the actual needs of the patient, thereby improving the practicality of the distractor.

[0032] Reference Figure 2 and Figure 4As shown, a sleeve 44 is fixedly connected to the outer surface of the support rod 2, and one end of the sleeve 44 is fixedly connected to the top of the base 1. By setting the sleeve 44, one end of the sleeve 44 can block the screw hole block 41, thereby preventing the problem of excessive adjustment causing the tensioner to fail to work normally; one end of the threaded pin 43 is fixedly connected to a rotating block 45, and one side of the rotating block 45 is fixedly connected to an elastic rope 46, and the first end of the elastic rope 46 is fixedly connected to the outer surface of the connecting rod 3. By setting the elastic rope 46, the rotating block 45 connected to the threaded pin 43 is connected to the connecting rod 3, which is beneficial to prevent the threaded pin 43 from being easily lost after being detached from the screw hole block 41 and the inner wall of the socket 42.

[0033] Working principle: When it is necessary to fix the chin of the patient placed on the placement plate 7, the rotating operation block 87 drives the first threaded rod 83 and the second threaded rod 84 to rotate, and the first threaded rod 83 and the second threaded rod 84 will respectively drive a baffle 81 connected to the extension block 82 to move synchronously toward each other on the top of the placement plate 7, and the baffle 81 will drive the slider 88 to slide synchronously on the inner wall of the slide groove 89, which plays a role in limiting the baffle 81 until the rubber plate 810 on one side of the baffle 81 can clamp the patient's chin. , thereby preventing the patient's chin from shifting on the placement plate 7; when the height of the placement plate 7 needs to be adjusted, push the screw hole block 41 on the support rod 2 to shift until it reaches a suitable position, then the screw hole block 41 will drive the placement plate 7 connected to the chain ring 5 and the tension belt 6 to move synchronously in the vertical direction, and then insert the threaded pin 43 into the inner wall of the screw hole block 41, rotate the rotating block 45 to drive the threaded pin 43 to rotate, so that the threaded pin 43 enters the inner wall of the corresponding insertion hole 42, and the height of the placement plate 7 is fixed.

Claims

1. An orthopedic distraction device, comprising a base (1), characterized in that: The top of the base (1) is symmetrically fixedly connected to a support rod (2), one end of the support rod (2) can be fixedly connected to the same connecting rod (3), the outer surface of the support rod (2) can be provided with a height adjustment device (4), the height adjustment device (4) comprises two screw hole blocks (41), the inner wall of the screw hole block (41) is arranged on the outer surface of the support rod (2), the outer surface of the screw hole block (41) is fixedly connected to a chain ring (5), one end of the chain ring (5) is fixedly connected to a tension belt (6), one end of the two tension belts (6) is fixedly connected to the same placement plate (7), the top of the placement plate (7) is provided with a limit device (8), the limit device (8) includes The invention comprises two baffles (81), the two baffles (81) are symmetrically arranged on the top of the placement plate (7), one side of the baffle (81) is fixedly connected to an extension block (82), the inner walls of the two extension blocks (82) are respectively threadedly connected to a first threaded rod (83) and a second threaded rod (84), the first threaded rod (83) and the second threaded rod (84) are fixedly connected at one end close to each other, the threads of the first threaded rod (83) and the second threaded rod (84) are of the same size and opposite directions, the outer surfaces of the first threaded rod (83) and the second threaded rod (84) are provided with a connection block (85), and one side of the two connection blocks (85) is symmetrically fixedly connected to one side of the placement plate (7).

2. An orthopedic distraction device according to claim 1, characterized in that: The outer surfaces of the first threaded rod (83) and the second threaded rod (84) are both fixedly connected to bearings (86), and the outer surfaces of the bearings (86) are fixedly connected to the inner wall of the connecting block (85).

3. The orthopedic distractor according to claim 1, characterized in that: An operating block (87) is fixedly connected to the ends of the first threaded rod (83) and the second threaded rod (84) that are away from each other, and a protrusion is provided on the outer surface of the operating block (87).

4. The orthopedic distractor according to claim 1, characterized in that: A slider (88) is fixedly connected to one side of the baffle (81), a slide groove (89) is provided on one side of the placement plate (7), and the outer surfaces of the two sliders (88) are slidably connected to the inner wall of the slide groove (89).

5. The orthopedic distractor according to claim 1, characterized in that: The adjacent sides of the two baffles (81) are both fixedly connected with a rubber plate (810), and one side of the rubber plate (810) is evenly provided with grooves.

6. The orthopedic distractor according to claim 1, characterized in that: The outer surface of the support rod (2) is slidably connected to the inner wall of the screw hole block (41); a plurality of insertion holes (42) are evenly formed on the outer surface of the support rod (2); a threaded pin (43) is threadedly inserted into the inner wall of the screw hole block (41); and the outer surface of the threaded pin (43) is inserted into the inner wall of one of the insertion holes (42).

7. An orthopedic distraction device according to claim 6, characterized in that: A sleeve (44) is fixedly connected to the outer surface of the support rod (2), and one end of the sleeve (44) is fixedly connected to the top of the base (1).

8. An orthopedic distraction device according to claim 7, characterized in that: One end of the threaded pin (43) is fixedly connected to a rotating block (45), one side of the rotating block (45) is fixedly connected to an elastic rope (46), and a first end of the elastic rope (46) is fixedly connected to the outer surface of the connecting rod (3).

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