Length-adjustable orthopedic splint

Abstract

The utility model relates to an orthopaedic splint, which belongs to the technical field of medical instruments, in particular to a length-adjustable orthopaedic splint, which comprises a concave plate, a convex plate, a base, a threaded rod, a ratchet wheel and a right-angle plate, the upper surface of the right-angle plate is fixedly connected with a fixing rod, the surface of the fixing rod is rotatably connected with a pawl, one side of the pawl is fixedly connected with a first spring, and the other side of the pawl is fixedly connected with a second spring. The end, away from the pawl, of the first spring is connected with one side of the right-angle plate, the pawl is matched with the ratchet wheel, and the top end of the threaded rod penetrates through the upper surface of the protruding plate and is fixedly connected with an adjusting disc. By means of the locking assembly, the locking function can be achieved after the threaded rod is adjusted, the situation that the threaded rod rotates and influences the adjusting effect is avoided, and the problems that an existing threaded rod is lack of a self-locking function, the threaded rod is not locked after the length is adjusted, and the threaded rod possibly rotates in the long-time using process are solved. Length adjustment deviation is caused, and the fixing effect is affected.

Description

Technical Field

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

[0002] Orthopedics is one of the most common departments in major hospitals, mainly studying the anatomy, physiology and pathology of the musculoskeletal system, and using drugs, surgery and physical methods to maintain and develop the normal form and function of this system. During the recovery process of orthopedic patients, orthopedic splints will be used to clamp and fix the injured area for convenient recovery.

[0003] In the prior art, such as the Chinese patent with the publication number CN219896062U, an orthopedic splint with adjustable length for orthopedics is disclosed. The utility model provides an orthopedic splint with adjustable length for orthopedics. When it is necessary to adjust the use length of the convex plate and the concave plate, first rotate the adjusting wheel, and the adjusting wheel drives the screw rod to start rotating. The screw rod rotates on the bearing seat. While the screw rod rotates, it drives the threaded block to move downward, and the threaded block drives the sliding plate to move downward.

[0004] However, the above patent has some deficiencies. In actual use, the above-mentioned threaded rod is driven by an adjusting wheel to achieve length adjustment. However, the above-mentioned threaded rod lacks a self-locking function. After adjusting the length, the threaded rod is not locked, and the phenomenon of self-rotation of the threaded rod may occur during long-term use, resulting in deviation of length adjustment and affecting the fixing effect. Therefore, an orthopedic splint with adjustable length is proposed to solve the above problems. Summary of the Utility Model

[0005] In order to solve the above technical problems, the utility model proposes an orthopedic splint with adjustable length. Through the provided locking assembly, the locking function can be realized for the threaded rod after adjustment, avoiding the self-rotation of the threaded rod and affecting the adjustment effect.

[0006] The technical solution for achieving the purpose of the utility model is: an orthopedic splint with adjustable length, including a concave plate and a convex plate slidably arranged on the concave plate. A base is installed on the inner bottom wall of the convex plate. A threaded rod is rotatably connected to the upper surface of the base. A ratchet wheel is sleeved on the surface of the threaded rod. A right-angle plate is fixedly connected to the inner wall of the convex plate. A fixed rod is fixedly connected to the upper surface of the right-angle plate. A pawl is rotatably connected to the surface of the fixed rod. One side of the pawl is fixedly connected to a first spring. The end of the first spring away from the pawl is connected to one side of the right-angle plate. The pawl is adapted to the ratchet wheel. The top end of the threaded rod penetrates through the upper surface of the convex plate and is fixedly connected to an adjusting disc.

[0007] In some embodiments, a slotted plate is fixedly connected to the upper surface of the convex plate. A through groove is formed through the upper surface of the convex plate. A slider is slidably connected to the inner wall of the through groove. A lever is fixedly connected to the bottom end of the slider.

[0008] In some embodiments, a rotating shaft is rotatably connected to the upper surface of the pawl. A limiting ring is sleeved on the surface of the rotating shaft. The surface of the limiting ring is connected to the end of the lever away from the slider.

[0009] In some embodiments, a sliding rod is fixedly connected to the inner wall of the through groove. A through hole is formed in one side of the slider. The inner wall of the through hole is slidably connected to the surface of the sliding rod. A second spring is sleeved on the surface of the sliding rod. One end of the second spring is connected to one side of the slider. The end of the second spring away from the slider is connected to the inner wall of the through groove. A pull ring is fixedly connected to the upper surface of the slider. The pull ring is arranged inside the slotted plate.

[0010] In some embodiments, limiting grooves are formed in the inner walls of both sides of the concave plate. Limiting blocks are slidably connected to the inner walls of the two limiting grooves. The opposite surfaces of the two limiting blocks are connected to both sides of the convex block.

[0011] In some embodiments, a lifting block is slidably connected to the inner wall of the convex block. Two ejector rods are fixedly connected to the lower surface of the lifting block. Two avoiding holes are formed through the lower surface of the convex block. The inner walls of the two avoiding holes are respectively slidably connected to the surfaces of the corresponding two ejector rods. A threaded hole is formed through the upper surface of the lifting block. The inner wall of the threaded hole is threadedly connected to the surface of the threaded rod.

[0012] Compared with the prior art, the remarkable advantages of the present utility model are:

[0013] When the adjusting disk of the present utility model is rotated, the adjusting disk drives the threaded rod to start rotating. When the threaded rod rotates, it can drive the ratchet wheel to rotate synchronously. Through the cooperation of the ratchet wheel and the pawl, the threaded rod can only rotate unidirectionally in the adjusting direction, thereby avoiding the self-rotation of the threaded rod, resulting in the retraction of the adjusted length and affecting the fixing effect.

[0014] It solves the problem that the existing threaded rod lacks a self-locking function. After adjusting the length, the threaded rod is not locked, and the phenomenon of self-rotation of the threaded rod may occur during long-term use, resulting in deviation of the length adjustment and affecting the fixing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present utility model will be further explained below with reference to the drawings and embodiments:

[0016] Figure 1 is a schematic three-dimensional structure diagram provided by the present utility model in an embodiment;

[0017] Figure 2 It is a schematic cross-sectional structure diagram provided by the present utility model in an embodiment;

[0018] Figure 3 It is a schematic partial structure diagram of a locking assembly provided by the present utility model in an embodiment;

[0019] Figure 4 It is a schematic partial structure diagram of a locking assembly provided by the present utility model in an embodiment;

[0020] Figure 5 It is provided by the present utility model in an embodiment Figure 4 The enlarged structure diagram at position A in the figure.

[0021] Explanation of reference numerals:

[0022] 1, concave plate; 2, convex plate; 3, limiting groove; 4, limiting block; 5, base; 6, lifting block; 7, threaded rod; 8, adjusting disc; 9, ejector rod; 10, grooved plate; 11, ratchet wheel; 12, right-angled plate; 13, fixed rod; 14, first spring; 15, pawl; 16, rotating shaft; 17, limiting ring; 18, dial rod; 19, slider; 20, through groove; 21, sliding rod; 22, second spring; 23, pull ring. Detailed implementation manners

[0023] The present utility model will be described in detail below. The technical solutions in the embodiments of the present utility model are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] The present utility model provides an orthopedic splint with adjustable length through improvement. The technical solution of the present utility model is:

[0025] Such as Figures 1-5As shown in the figure, an orthopedic splint with adjustable length includes a concave plate 1 and a convex plate 2 slidably arranged on the concave plate 1. A base 5 is installed on the inner bottom wall of the convex plate 2. A threaded rod 7 is rotatably connected to the upper surface of the base 5. Through the base 5, the threaded rod 7 is prevented from shaking during use. A ratchet 11 is sleeved on the surface of the threaded rod 7. A right-angle plate 12 is fixedly connected to the inner wall of the convex plate 2. A fixed rod 13 is fixedly connected to the upper surface of the right-angle plate 12. A pawl 15 is rotatably connected to the surface of the fixed rod 13. A first spring 14 is fixedly connected to one side of the pawl 15. The end of the first spring 14 away from the pawl 15 is connected to one side of the right-angle plate 12. The pawl 15 is adapted to the ratchet 11. The top end of the threaded rod 7 penetrates through the upper surface of the convex plate 2 and is fixedly connected to an adjusting disc 8. A plurality of anti-slip rubber strips are arranged on the surface of the adjusting disc 8, which can increase the friction force and improve the anti-slip effect during adjustment.

[0026] As Figure 4 and 5 shown, in one embodiment, a slotted plate 10 is fixedly connected to the upper surface of the convex plate 2. By providing the slotted plate 10, the pull ring 23 can be arranged inside to avoid accidental touch of the pull ring 23 during use. A through groove 20 is formed through the upper surface of the convex plate 2. A slider 19 is slidably connected to the inner wall of the through groove 20. A lever 18 is fixedly connected to the bottom end of the slider 19. The lever 18 is arranged in an L shape and can be accurately connected to the limiting ring 17 on the pawl 15.

[0027] A rotating shaft 16 is rotatably connected to the upper surface of the pawl 15. By providing the rotating shaft 16, the movement interference of the pawl 15 can be avoided when the lever 18 is pulled. A limiting ring 17 is sleeved on the surface of the rotating shaft 16. By providing the limiting ring 17, the lever 18 can be fixed. The surface of the limiting ring 17 is connected to the end of the lever 18 away from the slider 19.

[0028] As Figure 5 shown, in one embodiment, a sliding rod 21 is fixedly connected to the inner wall of the through groove 20. A through hole is formed in one side of the slider 19. The inner wall of the through hole is slidably connected to the surface of the sliding rod 21. A second spring 22 is sleeved on the surface of the sliding rod 21. One end of the second spring 22 is connected to one side of the slider 19. The end of the second spring 22 away from the slider 19 is connected to the inner wall of the through groove 20. By providing the second spring 22, the slider 19 can be limited and reset, avoiding self-sliding of the slider 19 inside the through groove 20 and affecting the locking and unlocking effect. A pull ring 23 is fixedly connected to the upper surface of the slider 19. The pull ring 23 is arranged inside the slotted plate 10. The pull ring 23 is composed of a disc and a ring, which is convenient for holding and pulling.

[0029] As Figure 2As shown, in one embodiment, limiting grooves 3 are formed in the inner walls on both sides of the concave plate 1. Limiting blocks 4 are slidably connected to the inner walls of the two limiting grooves 3. The opposite surfaces of the two limiting blocks 4 are connected to both sides of the convex block. The convex plate 2 drives the limiting blocks 4 to slide in the limiting grooves 3, which can maintain the stability of the movement of the convex plate 2 and the concave plate 1;

[0030] A lifting block 6 is slidably connected to the inner wall of the convex block. Two ejector rods 9 are fixedly connected to the lower surface of the lifting block 6. Two avoiding holes are formed through the lower surface of the convex block. The inner walls of the two avoiding holes are respectively slidably connected to the surfaces of the corresponding two ejector rods 9. A threaded hole is formed through the upper surface of the lifting block 6. The inner wall of the threaded hole is screwed with the surface of the threaded rod 7. The lifting block 6 drives the ejector rods 9 to move downward, and the ejector rods 9 push the concave plate 1 to achieve length adjustment.

[0031] The specific working method is as follows: When the length-adjustable orthopedic splint is used and the use length of the convex plate 2 and the concave plate 1 needs to be adjusted, first rotate the adjusting disc 8. The adjusting disc 8 drives the threaded rod 7 to start rotating. When the threaded rod 7 rotates, it can drive the ratchet wheel 11 to rotate synchronously. Through the cooperation of the ratchet wheel 11 and the ratchet pawl 15, the threaded rod 7 can only rotate unidirectionally in the adjusting direction, thereby preventing the threaded rod 7 from rotating self, resulting in the retraction of the adjusted length and affecting the fixing effect. The threaded rod 7 rotates on the base 5. While the threaded rod 7 rotates, it drives the lifting block 6 to move downward. The lifting block 6 drives the ejector rods 9 to move downward. The ejector rods 9 push the concave plate 1 to achieve length adjustment. When the concave plate 1 is moving, the convex plate 2 drives the limiting blocks 4 to slide in the limiting grooves 3, which can maintain the stability of the movement of the convex plate 2 and the concave plate 1;

[0032] When the whole needs to be reset, hold the pull ring 23 by hand and pull the pull ring 23 in the direction of the slotted plate 10, driving the slider 19 to slide on the sliding rod 21. Through the sliding of the slider 19, the movement of the lever 18 can be driven. Through the rotational connection between the lever 18 and the ratchet pawl 15, the ratchet pawl 15 can be driven to rotate around the rotating shaft 16, so that the ratchet wheel 11 disengages from the ratchet pawl 15. At this time, the reverse rotation of the threaded rod 7 can be realized to achieve reset.

[0033] The technical means disclosed in the solution of the present invention are not limited to the technical means disclosed in the above technical means, but also include the technical solutions composed of equivalent replacements of the above technical features. The matters not covered in the present invention belong to the common general knowledge of those skilled in the art.

Claims

1. A length-adjustable orthopedic splint, comprising a concave plate (1) and a convex plate (2) slidably arranged on the concave plate (1), characterized in that: The inner bottom wall of the convex plate (2) is provided with a base (5), the upper surface of the base (5) is rotatably connected with a threaded rod (7), the surface of the threaded rod (7) is sleeved with a ratchet (11), the inner wall of the convex plate (2) is fixedly connected with a right-angle plate (12), the upper surface of the right-angle plate (12) is fixedly connected with a fixing rod (13), the surface of the fixing rod (13) is rotatably connected with a pawl (15), one side of the pawl (15) is fixedly connected with a spring 1 (14), one end of the spring 1 (14) away from the pawl (15) is connected to one side of the right-angle plate (12), the pawl (15) is adapted to the ratchet (11), and the top end of the threaded rod (7) passes through the upper surface of the convex plate (2) and is fixedly connected with an adjusting disk (8).

2. The length-adjustable orthopedic splint according to claim 1, characterized in that: The upper surface of the convex plate (2) is fixedly connected to a slotted plate (10), the upper surface of the convex plate (2) is provided with a through slot (20), the inner wall of the through slot (20) is slidably connected to a slider (19), and the bottom end of the slider (19) is fixedly connected to a lever (18).

3. The length-adjustable orthopedic splint according to claim 1, characterized in that: The upper surface of the ratchet (15) is rotatably connected to a rotating shaft (16), a limiting ring (17) is sleeved and installed on the surface of the rotating shaft (16), and the surface of the limiting ring (17) is connected to an end of the lever (18) away from the slider (19).

4. The length-adjustable orthopedic splint according to claim 2, characterized in that: The inner wall of the through groove (20) is fixedly connected with a slide bar (21); a through hole is opened on one side of the slider (19); the inner wall of the through hole is slidably connected with the surface of the slide bar (21); a spring 2 (22) is sleeved on the surface of the slide bar (21); one end of the spring 2 (22) is connected with one side of the slider (19); the end of the spring 2 (22) away from the slider (19) is connected with the inner wall of the through groove (20); a pull ring (23) is fixedly connected to the upper surface of the slider (19); the pull ring (23) is arranged inside the slotted plate (10).

5. The length-adjustable orthopedic splint according to claim 1, characterized in that: The inner walls of both sides of the concave plate (1) are provided with limiting grooves (3), the inner walls of the two limiting grooves (3) are slidably connected to limiting blocks (4), and the opposite surfaces of the two limiting blocks (4) are connected to the two sides of the protrusion.

6. The length-adjustable orthopedic splint according to claim 5, characterized in that: The inner wall of the protrusion is slidably connected to a lifting block (6), and the lower surface of the lifting block (6) is fixedly connected to two push rods (9). The lower surface of the protrusion is provided with two avoidance holes, and the inner walls of the two avoidance holes are respectively slidably connected to the surfaces of the corresponding two push rods (9). The upper surface of the lifting block (6) is provided with a threaded hole, and the inner wall of the threaded hole is screwed to the surface of the threaded rod (7).

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