External fixation splint for bone fracture

Abstract

The utility model provides a kind of fracture external fixation splint, it is related to fixed splint technical field, the utility model includes splint body, the splint body is combined by first plate body and second plate body;Binding, the binding is wound in splint body surface, for splint body is wound and fixed on patient's limbs;Adjusting device, the adjusting device is arranged between first plate body and second plate body, wherein adjusting device changes the spacing between first plate body and second plate body, reaches the effect of changing the length of splint body, the adjusting device includes: rack bar, the rack bar is fixed with second plate body, the utility model is by being provided with adjusting device, so that the length of splint body can be flexibly adjusted according to the length of patient's limbs, make splint body quickly and patient's limbs are adapted, reduce the operation steps and time required when changing the length of splint body, improve the practicality and flexibility of splint body.

Description

Technical Field

[0001] This utility model relates to the field of splint technology, and in particular to an external fixation splint for fractures. Background Technology

[0002] External fixation splints are medical devices used for external fixation after a fracture. Their core function is to restrict the movement of the fracture site, maintain the position of the fracture after reduction, and create a stable environment for bone healing. They are usually made of materials with a certain strength and plasticity and can be appropriately adjusted according to the shape of the fracture site. They are a commonly used fixation method in fracture emergency care and clinical treatment.

[0003] When using existing external fixation splints for fractures, two or more splints are moved to a position that fits against the patient's fracture site. Then, straps are wrapped around the two or more splints to fix their position, so that the splints are placed around the fracture site to restrict limb movement and create a stable environment for bone healing.

[0004] However, since the length of the splint is fixed and the limb lengths of different people are different, the splint may be too long or too short when it is fixed to the limb. This may require the person to replace, cut or splice the splint, making the process of fixing the splint cumbersome, time-consuming and laborious, and affecting the practicality and flexibility of the splint. Utility Model Content

[0005] The technical problem this utility model aims to solve is that, since the length of the splint is fixed and the limb lengths of different people are different, the splint may be too long or too short when fixed to the limb. This requires the person to replace, cut or splice the splint, making the process of fixing the splint cumbersome, time-consuming and laborious, thus affecting the practicality and flexibility of the splint.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a fracture external fixation splint, comprising: a splint body, the splint body being composed of a first plate and a second plate; a strap, the strap being wrapped around the surface of the splint body for fixing the splint body to the patient's limb; and an adjustment device, the adjustment device being disposed between the first plate and the second plate, wherein the adjustment device achieves the effect of changing the length of the splint body by adjusting the distance between the first plate and the second plate.

[0007] Preferably, the adjusting device includes: a rack, which is fixedly connected to the second plate, wherein the surface of the rack is slidably connected to the inner wall of the first plate; a gear shaft, which is rotatably mounted on the first plate via a bearing, wherein the rack has an adjusting groove in the middle, the gear shaft is placed in the adjusting groove, and the gear shaft meshes with the rack, wherein a locking block is fixedly connected to the end of the gear shaft away from the rack; a plurality of positioning holes, which are evenly opened on the side of the first plate near the gear shaft, wherein the plurality of positioning holes are arranged circumferentially with the gear shaft as the center; and a pin, the surface of which is slidably connected to the inner wall of the hole of the locking block, wherein the pin limits the locking block by inserting into the locking block and the positioning hole.

[0008] The effect achieved by the above components is as follows: By setting the adjustment device, firstly, the first plate is held and the screw block is manually rotated, causing the screw block to drive the gear shaft to rotate. During the rotation, the gear shaft drives the rack to move left and right along the inside of the first plate, causing the rack to drive the second plate to move left and right. When the second plate moves to the designated position, the inner wall of the hole on the screw block coincides with the inner wall of any positioning hole. At this time, the pin is manually inserted into the screw block and the positioning hole to limit the screw block and the gear shaft. This limits the rack and the second plate, thus fixing the first plate and the second plate after the distance is adjusted. This increases or decreases the length of the splint body, thereby completing the length adjustment of the splint body. The length of the splint body can be flexibly adjusted according to the length of the patient's limb, allowing the splint body to quickly adapt to the patient's limb. This reduces the operation steps and time required to change the length of the splint body, improving the practicality and flexibility of the splint body.

[0009] Preferably, the surface of the screw block is fixed with a plurality of anti-slip strips, and the plurality of anti-slip strips are arranged at equal intervals.

[0010] The effect achieved by the above components is that by setting anti-slip strips, the friction between the hand and the surface of the screw block can be increased, reducing the chance of slipping when manually turning the screw block.

[0011] Preferably, the pin is made of a magnetically attractive metal material, and a magnetic ring is fixed to the side of the screw block near the pin, wherein the magnetic ring is fixed to the pin by adsorbing it.

[0012] The effect achieved by the above components is as follows: by setting a magnetic ring, when the pin moves to the position where it is fully inserted into the screw block and the positioning hole, the magnetic ring can attract and fix the pin, reducing the possibility that the pin will slide out of the positioning hole during use, thus affecting the stability of fixing the screw block.

[0013] Preferably, two positioning posts are fixedly connected to the front of the rack away from the second plate. The positioning posts have a T-shaped cross-section. A slide is provided on the first plate, and the positioning posts are placed inside the slide to assist in limiting the rack.

[0014] The effect achieved by the above components is that by setting the positioning post, the positioning post can be placed inside the slide to assist in limiting the rack, reducing the rack from swaying left and right and affecting the stability of the clamp body.

[0015] Preferably, one of the positioning pins is fixed to a pointer plate at the end away from the toothed rod, and the surface of the first plate is provided with a scale groove, wherein the pointer plate and the scale groove are positioned correspondingly.

[0016] The effect achieved by the above components is as follows: when the operator adjusts the movement of the gear rod through the pointer plate and the scale groove, the gear rod can drive the pointer plate to move synchronously through the positioning post. During the movement, the pointer plate points to the position corresponding to the scale groove to show the operator the distance the gear rod has moved, which makes it convenient for the operator to measure the distance between the first plate and the second plate and improves the accuracy of adjusting the clamp body.

[0017] Preferably, the back of the first plate 11 has a groove, and a filler plate is fixedly connected to the back of the toothed rod, wherein the surface of the filler plate is slidably connected to the groove on the back of the first plate, and the surface height of the filler plate is equal to the surface height of the first plate.

[0018] The effect achieved by the above components is as follows: by setting the filling plate, the filling plate can be placed inside the first plate to fill the height difference between the tooth bar and the first plate, so that the surface of the tooth bar is as horizontal as possible with the surfaces of the first plate and the second plate, making it fit more closely with the surface of the limb.

[0019] Preferably, a rubber pad is fixed to the back of the filling plate.

[0020] The effect achieved by the above components is that by setting rubber pads, the surface of the filling plate can be separated from the limb epidermis, reducing the situation where the filling plate is in contact with the limb epidermis for a long time and causes great wear.

[0021] The beneficial effects of this utility model are:

[0022] By incorporating an adjustment mechanism, the length of the splint can be flexibly adjusted according to the patient's limb length, allowing the splint to quickly adapt to the patient's limb. This reduces the operational steps and time required to change the length of the splint, thus improving its practicality and flexibility. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0025] Figure 2This is a three-dimensional structural diagram of the scale groove of this utility model;

[0026] Figure 3 This is a three-dimensional structural diagram of the rubber pad of this utility model;

[0027] Figure 4 This is a three-dimensional structural diagram of the positioning hole of this utility model;

[0028] Figure 5 This is a three-dimensional structural diagram of the gear shaft of this utility model;

[0029] Figure 6 This is a three-dimensional structural diagram of the toothed rod of this utility model.

[0030] Legend: 1. Clamping plate body; 11. First plate; 12. Second plate; 2. Straps; 3. Adjustment device; 31. Gear rack; 32. Positioning pin; 33. Pointer plate; 34. Gear shaft; 35. Tightening block; 36. Pin; 37. Magnetic ring; 38. Anti-slip strip; 39. Scale groove; 310. Slide rail; 311. Positioning hole; 312. Filler plate; 313. Rubber pad. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] Figure 1-6 An external fixation splint for fractures is shown, comprising: a splint body 1, which is composed of a first plate 11 and a second plate 12; a strap 2, which is wrapped around the surface of the splint body 1 to fix the splint body 1 to the patient's limb; and an adjustment device 3, which is disposed between the first plate 11 and the second plate 12, wherein the adjustment device 3 achieves the effect of changing the length of the splint body 1 by adjusting the distance between the first plate 11 and the second plate 12.

[0034] Figure 2-6The adjusting device 3 shown includes: a rack 31, which is fixedly connected to the second plate 12, and slidably connected to the inner wall of the first plate 11; a gear shaft 34, which is rotatably mounted on the first plate 11 via bearings, wherein the rack 31 has an adjusting groove in the middle, the gear shaft 34 is placed in the adjusting groove, and the gear shaft 34 meshes with the rack 31, wherein a screw block 35 is fixedly connected to the end of the gear shaft 34 away from the rack 31, and a pin hole is provided on the screw block 35 for inserting... Pin 36 is inserted into pin hole; multiple positioning holes 311 are evenly distributed on one side of the first plate 11 near the screw block 35, wherein the multiple positioning holes 311 are arranged in a circle with the gear shaft 34 as the center; pin 36 is slidably connected to the inner wall of the hole of screw block 35, wherein pin 36 limits the screw block 35 by inserting into the pin hole and positioning hole 311 of screw block 35, wherein pin 36 is made of magnetic metal material, and the first plate 11 is held and the screw block 35 is manually rotated. This causes the screw block 35 to rotate the gear shaft 34, which in turn causes the gear shaft 34 to move the rack 31 left and right along the inside of the first plate 11 during rotation. This causes the rack 31 to move the second plate 12 left and right. When the second plate 12 moves to the designated position, the inner wall of the hole on the screw block 35 coincides with the inner wall of any positioning hole 311. At this time, the pin 36 is manually inserted into the screw block 35 and the positioning hole 311 to limit the screw block 35 and the gear shaft 34. This limits the rack 31 and the second plate 12, and fixes the first plate 11 and the second plate 12 after adjusting the distance. This increases or decreases the length of the splint body 1, thereby completing the length adjustment of the splint body 1. The length of the splint body 1 can be flexibly adjusted according to the length of the patient's limb, allowing the splint body 1 to quickly adapt to the patient's limb. This reduces the operation steps and time required to change the length of the splint body 1, and improves the practicality and flexibility of the splint body 1.

[0035] Figure 2-6 Multiple anti-slip strips 38 are fixedly attached to the surface of the screw block 35 shown. The multiple anti-slip strips 38 are arranged at equal intervals. By setting the anti-slip strips 38, the friction between the hand and the surface of the screw block 35 can be increased, reducing the possibility of slippage when manually rotating the screw block 35. A magnetic ring 37 is fixedly attached to the side of the screw block 35 near the pin 36. The magnetic ring 37 fixes the pin 36 by adsorbing it. By setting the magnetic ring 37, when the pin 36 moves to the position where it is fully inserted into the screw block 35 and the positioning hole 311, the magnetic ring 37 can adsorb and fix the pin 36, reducing the possibility of the pin 36 sliding out of the positioning hole 311 during use and affecting the stability of the screw block 35.

[0036] Figure 2-6Two positioning posts 32 are fixedly connected to the back of the toothed rod 31 away from the second plate 12. The cross-section of the positioning post 32 is T-shaped. A slide rail 310 is provided on the first plate 11. The positioning posts 32 are placed inside the slide rail 310 to provide auxiliary positioning for the toothed rod 31. By setting the positioning posts 32, the positioning posts 32 can be placed inside the slide rail 310 to provide auxiliary positioning for the toothed rod 31, reducing the possibility of the toothed rod 31 swaying left and right, which would affect the stability of the clamping plate body 1. One end of the positioning post 32 away from the toothed rod 31 is fixedly connected to... The device includes a pointer plate 33, and a scale groove 39 is provided on the surface of the first plate 11. The pointer plate 33 and the scale groove 39 are positioned correspondingly. When the operator adjusts the movement of the gear rod 31, the gear rod 31 can drive the pointer plate 33 to move synchronously through the positioning post 32. During the movement, the pointer plate 33 points to the position corresponding to the scale groove 39 to show the operator the movement distance of the gear rod 31. This facilitates the operator in measuring the distance between the first plate 11 and the second plate 12 and improves the accuracy of adjusting the clamp body 1.

[0037] Figure 2-6 The back of the first plate 11 shown has a groove, and a filling plate 312 is fixedly connected to the back of the toothed rod 31. The surface of the filling plate 312 is slidably connected to the groove on the back of the first plate 11. The groove on the back of the first plate 11 provides a sliding path for the filling plate 312 to ensure stable sliding between the second plate 12 and the first plate 11. The surface height of the filling plate 312 is equal to the surface height of the first plate 11. By setting the filling plate 312, the filling plate 312 can be placed inside the first plate 11 to fill the height difference between the toothed rod 31 and the first plate 11, so that the surface of the toothed rod 31 is as horizontal as possible with the surfaces of the first plate 11 and the second plate 12, making it fit more closely to the limb surface. A rubber pad 313 is fixedly connected to the back of the filling plate 312. By setting the rubber pad 313, the surface of the filling plate 312 can be separated from the limb epidermis, reducing the long-term contact between the filling plate 312 and the limb epidermis and the resulting significant wear.

[0038] Working principle: When in use, two or more splint bodies 1 are moved to a position that fits against the patient's fracture site. Then, the splint bodies 1 are fixed in position by wrapping the two or more splint bodies 1 with straps 2, so that the splint bodies 1 are placed around the fracture site to restrict limb movement, thereby creating a stable environment for bone healing.

[0039] First, hold the first plate 11 and manually rotate the screw block 35, causing the screw block 35 to drive the gear shaft 34 to rotate. During the rotation, the gear shaft 34 drives the rack 31 to move left and right along the inside of the first plate 11, causing the rack 31 to drive the second plate 12 to move left and right. When the second plate 12 moves to the designated position, the inner wall of the hole on the screw block 35 coincides with the inner wall of any positioning hole 311. At this time, manually insert the pin 36 into the screw block 35 and the positioning hole 311 to limit the screw block 35 and the gear shaft 34. This allows the gear shaft 34 to limit the rack 31 and the second plate 12, so that the first plate 11 and the second plate 12 are fixed after the distance is adjusted. This increases or decreases the length of the clamp body 1, thereby completing the length adjustment of the clamp body 1.

[0040] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. An external fixation splint for fractures, characterized in that it comprises: The clamp body (1) is composed of a first plate (11) and a second plate (12); The strap (2) is wrapped around the surface of the splint body (1) to fix the splint body (1) to the patient's limb; Adjustment device (3), the adjustment device (3) is disposed between the first plate (11) and the second plate (12), wherein the adjustment device (3) achieves the effect of changing the length of the clamp body (1) by adjusting the distance between the first plate (11) and the second plate (12); The adjusting device (3) includes: a rack (31), which is fixedly connected to the second plate (12), wherein the surface of the rack (31) is slidably connected to the inner wall of the first plate (11); Gear shaft (34), the gear shaft (34) is rotatably mounted on the first plate (11) by bearing, the middle of the rack (31) has an adjustment groove, the gear shaft (34) is placed in the adjustment groove, and the gear shaft (34) meshes with the rack (31), wherein a screw block (35) is fixedly connected to the end of the gear shaft (34) away from the rack (31). Multiple positioning holes (311) are evenly provided on one side of the first plate (11) near the gear shaft (34), wherein the multiple positioning holes (311) are arranged in a circle with the gear shaft (34) as the center; A pin (36) is slidably connected to the inner wall of the hole of the screw block (35), wherein the pin (36) limits the screw block (35) by inserting into the screw block (35) and the positioning hole (311).

2. The external fixation bone fracture clamping plate according to claim 1, characterized in that: The surface of the screw block (35) is fixed with a plurality of anti-slip strips (38), and the plurality of anti-slip strips (38) are arranged at equal intervals.

3. The bone fracture external fixation splint according to claim 1, characterized in that: The pin (36) is made of magnetic metal. A magnetic ring (37) is fixed to the side of the screw block (35) near the pin (36). The magnetic ring (37) is fixed to the pin (36) by adsorbing it.

4. The fracture external fixation splint according to claim 1, characterized in that: Two positioning posts (32) are fixedly connected to the front of the rack (31) away from the second plate (12). The cross-section of the positioning posts (32) is T-shaped. A slide (310) is provided on the first plate (11). The positioning posts (32) are placed inside the slide (310) to assist in limiting the rack (31).

5. A fracture external fixation splint according to claim 4, characterized in that: one of them The positioning post (32) is fixed to a pointer plate (33) at the end away from the toothed rod (31). The surface of the first plate (11) is provided with a scale groove (39), wherein the pointer plate (33) and the scale groove (39) are in the same position.

6. The fracture external fixation splint according to claim 1, characterized in that: The back of the first plate (11) has a slot, and the back of the toothed rod (31) is fixedly connected to a filling plate (312), wherein the surface of the filling plate (312) is slidably connected to the slot on the back of the first plate (11), and the surface height of the filling plate (312) is equal to the surface height of the first plate (11).

7. The fracture external fixation splint according to claim 6, characterized in that: A rubber pad (313) is fixed to the back of the filling plate (312).

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