External fixing device for emergency reduction of fracture of long tubular bones of four limbs

Abstract

The invention discloses an external fixing device for limb long tubular bone fracture emergency treatment reduction. The external fixing device comprises an upper clamping plate, a lower clamping plate, a sliding pulling plate and a fixing belt. The lower end of the upper clamping plate is provided with a lower clamping plate; the rear ends of the upper clamping plate and the lower clamping plate are slidably connected with sliding pull plates respectively. The lower end of the sliding pull plate is movably connected with a fixing belt; connecting plates are arranged at the rear ends of the upper clamping plate and the lower clamping plate; a sliding groove is formed in the middle of the connecting plate and slidably connected with a sliding pull plate; the rear ends of the sliding grooves are slidably connected with sliding clamping plates. Clamping plates are arranged at the lower ends of the sliding clamping plates; a clamping groove is formed in the lower end of the clamping plate and detachably connected with a fixing belt; the upper and lower ends of the fixing belt are connected with the clamping grooves; the angle of the sliding pulling plate and the angle of the fixing band can be flexibly adjusted according to the position, shape and type of a fracture, so that the fixing band can be attached to fracture parts of different forms, and the contact area between the fixing band and the fracture parts on the two sides is greatly increased.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of fracture first-aid devices, and particularly relates to an external fixation device for emergency reduction of long tubular bone fracture of limbs. BACKGROUND

[0002] Long tubular bone fracture of limbs is a common traumatic disease in clinical practice, such as fracture of humerus, femur, ulna and radius, tibia and fibula, etc., which is often caused by traffic accidents, sports injuries, falling from a height, etc.; emergency reduction and effective external fixation are crucial for restoring the anatomical structure of the fracture site, maintaining the function of the limb and promoting fracture healing. In the prior art, the contact area between the splint and the fracture end is relatively small when the traditional external fixation device fixes the fracture site, only the two ends of the fractured bone segment are fixed, which leads to insufficient stability of the fracture end and affects the bone healing effect; at the same time, due to the different positions and shapes of the fracture, the contact area between the fixation device and the two ends of the fracture site is small when fixing the fracture site, and the fixation effect is poor. Therefore, in view of the above prior art problems, the present application provides an external fixation device for emergency reduction of long tubular bone fracture of limbs to improve the stability of fixation. SUMMARY

[0003] In order to solve the above-mentioned prior art problems, the present application designs an external fixation device for emergency reduction of long tubular bone fracture of limbs, which fixes the two ends of the fracture site of the patient by respectively arranging upper and lower clamps, and connects a sliding pull plate in the middle to control the inclination of the fixing belt at a certain angle by the pull plate of the upper and lower parts, thereby increasing the contact area between the fixing belt and the fracture site on both sides. In order to achieve the above technical problems, the present application is realized by the following technical scheme: an external fixation device for emergency reduction of long tubular bone fracture of limbs, comprising: an upper clamp, a lower clamp, a sliding pull plate and a fixing belt. The lower end of the upper clamp is provided with the lower clamp; the rear ends of the upper and lower clamps are respectively connected with the sliding pull plate; the lower end of the sliding pull plate is movably connected with the fixing belt. The rear ends of the upper and lower clamps are provided with a connecting plate; a sliding groove is formed in the middle of the connecting plate and connected with the sliding pull plate; the rear end of the sliding groove is connected with the sliding clamp; the lower end of the sliding pull plate is provided with a clamping plate; the lower end of the clamping plate is provided with a clamping groove which is detachably connected with the fixing belt; the upper and lower ends of the fixing belt are connected with the clamping groove. Further, holes are formed in the middle of the upper and lower clamps to movably connect with a cross pin; Further, holes are also formed in the middle of the sliding clamps at both ends to movably connect with another cross pin; the fixation of the two ends of the fracture site is realized; Further, the cross pin is provided with a threaded nut at both ends to be connected with the threaded nut; the fixation is realized by the threaded nut. Further, the upper clamping plate and the lower clamping plate are provided with fixed plates on both sides; the fixed plates are provided with circular holes in the middle, and are connected through screw rods; Further, the connecting plate is symmetrically arranged left and right, so that the contact area is reduced under the premise of ensuring fixed rigidity. Further, the middle part of the sliding pull plate is symmetrically provided with limit plates slidingly connected with sliding grooves on both sides, and a fixed clamping plate is slidingly connected with the outer surface of the connecting plate on one side; the middle part of the fixed clamping plate is provided with a hole for threadedly connecting a fixed screw rod; the upper end of the fixed screw rod is provided with a fixed knob; the sliding pull plate is fixed through the abutment of the fixed screw rod against the connecting plate. Further, the front end of the fixing belt is provided with a buckle, the rear end is movably connected with the buckle, and the outer side is provided with a magic tape.

[0004] The beneficial effects of the present application are: The upper clamping plate and the lower clamping plate cooperate with the horizontal needle to fix both ends of the fractured part, and then the sliding pull plate is used to control the inclination of the fixing belt, so that the angle of the sliding pull plate and the fixing belt can be flexibly adjusted according to the position, shape and type of the fracture, the fixing belt can be fitted to different shapes of the fractured part, the contact area of the fixing belt with the fractured parts on both sides is greatly increased, the traditional method of only fixing both ends of the bone segment is changed, the stability of the fractured end is effectively improved, good conditions are created for the healing of the fracture, and the risk of fracture displacement caused by unstable fixation is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0005] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used for the embodiment description.

[0006] Figure 1 It is a whole structure schematic diagram of a kind of external fixation appliance for emergency reduction of long tubular bone fracture of four limbs; Figure 2 It is a partial structure schematic diagram A of a kind of external fixation appliance for emergency reduction of long tubular bone fracture of four limbs; Figure 3 It is a sliding pull plate structure schematic diagram of a kind of external fixation appliance for emergency reduction of long tubular bone fracture of four limbs; Figure 4 It is a fixed belt structure schematic diagram of a kind of external fixation appliance for emergency reduction of long tubular bone fracture of four limbs; Figure 5 It is an upper clamping plate structure schematic diagram of a kind of external fixation appliance for emergency reduction of long tubular bone fracture of four limbs; In the drawings, the component list represented by each sign is as follows: 1-Upper clamping plate, 2-Connecting plate, 3-Sliding clamping plate, 4-Lower clamping plate, 5-Slide groove, 6-Limiting plate, 7-Sliding pull plate, 8-Fixed clamping plate, 9-Fixed screw, 10-Fixed knob, 11-Clamping plate, 12-Fixed strap, 13-Snap fastener, 14-Hook and loop fastener, 15-Horizontal pin, 16-Nut, 17-Clamping groove, 18-Fixed plate, 19-Round hole. Detailed Implementation

[0007] This invention discloses an external fixation device for emergency reduction of fractures of long tubular bones of the limbs, comprising: an upper splint 1, a lower splint 4, a sliding pull plate 7, and a fixation strap 12; The upper clamping plate 1 is provided with a lower clamping plate 4 at its lower end; the rear ends of the upper clamping plate 1 and the lower clamping plate 4 are respectively slidably connected to a sliding pull plate 7; the lower end of the sliding pull plate 7 is movably connected to a fixing strap 12. Both the upper splint 1 and the lower splint 4 are provided with connecting plates 2 at their rear ends; a sliding groove 5 is provided in the middle of the connecting plate 2 to slide and connect to the sliding pull plate 7; the rear end of the sliding groove 5 is slidably connected to the sliding splint 3; a clamping plate 11 is provided at the lower end of the sliding splint 3; a clamping groove 17 is provided at the lower end of the clamping plate 11 to detachably connect to the fixing strap 12; the upper and lower ends of the fixing strap 12 are connected to the clamping groove 17; the angle of the sliding pull plate 7 and the fixing strap 12 can be flexibly adjusted according to the location, shape and type of fracture, so that the fixing strap 12 can fit the fracture site of different shapes, greatly increasing the contact area between the fixing strap 12 and the fracture sites on both sides.

[0008] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention; obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0009] Example 1 like Figures 1-4 As shown, a lower clamping plate 4 is provided at the lower end of the upper clamping plate 1; the rear ends of the upper clamping plate 1 and the lower clamping plate 4 are respectively slidably connected to a sliding pull plate 7; the lower end of the sliding pull plate 7 is movably connected to a fixing strap 12; Both the upper splint 1 and the lower splint 4 are provided with connecting plates 2 at their rear ends; a sliding groove 5 is provided in the middle of the connecting plate 2 to slide and connect a sliding pull plate 7. The sliding pull plate 7 can be moved according to different positions of the fracture to ensure accurate fixation of the fixation site. The sliding groove 5 is slidably connected to the sliding clamp 3 at its rear end; different long tubular bones have different lengths, and the sliding clamp 3 can be moved to adapt to different long tubular bone lengths, so that the sliding clamp 3, the upper clamp 1 and the lower clamp 4 fix the two ends of the long tubular bone respectively. The lower end of the sliding pull plate 7 is provided with a clamping plate 11; the lower end of the clamping plate 11 is provided with a clamping groove 17 which is detachably connected with a fixing belt 12; the upper and lower ends of the fixing belt 12 are connected with the clamping groove 17; the upper and lower clamping grooves 17 are oppositely arranged and are oppositely opened; the fixing belt 12 is pulled through the upper and lower clamping grooves 17, so that the fixing belt 12 can be obliquely arranged according to the fracture condition, and the fixing belt 12 is limited after being fixed, so as to prevent the fixing belt 12 from sliding from the two sides to the middle; Further, the upper clamping plate 1 and the lower clamping plate 4 are both provided with a hole in the middle part and are movably connected with a horizontal needle 15; Further, the middle part of the sliding clamping plate 3 at both ends is also provided with a hole and movably connected with another horizontal needle 15; the both ends of the fracture site are fixed; Further, the horizontal needle 15 is provided with a threaded nut 16 at both ends; the horizontal needle 15 is fixed through the threaded nut 16; the horizontal needle 15 is threadedly connected with the threaded nut 16 at both ends, and the threaded nut 16 is rotated to make the clamping plates on both sides close to each other, so as to clamp the affected limb; Further, the connecting plate 2 is symmetrically arranged left and right, which reduces the contact area under the premise of ensuring the fixing rigidity; the contact area is too large, which avoids bringing pressure discomfort to the patient, and ensures the stability and supporting force of the whole device; the smaller the contact area is, the more conducive to the air permeability; Further, the middle part of the sliding pull plate 7 is symmetrically provided with a limiting plate 6 which is slidably connected with a sliding groove 5 on one side, and a fixed clamping plate 8 which is slidably connected with the outer surface of the connecting plate 2; the middle part of the fixed clamping plate 8 is provided with a hole which is threadedly connected with a fixed screw rod 9; the upper end of the fixed screw rod 9 is provided with a fixed knob 10; the fixed screw rod 9 abuts against the connecting plate 2 to fix the sliding pull plate 7; when the sliding pull plate 7 needs to be fixed, the medical staff only needs to rotate the fixed knob 10 to drive the fixed screw rod 9 to move downward, so that the fixed screw rod 9 abuts against the connecting plate 2, thereby realizing the locking of the position of the sliding pull plate 7; Further, the front end of the fixing belt 12 is provided with a buckle 13, the rear end is movably connected with the buckle 13, and the outer side is provided with a magic tape 14; the fixing belt 12 is conveniently and quickly fixed and detached; the medical staff can flexibly adjust the tightness of the fixing belt 12 according to the actual condition of the patient's limb, which can ensure the fixing effect, improve the comfort of the patient when wearing, and effectively avoid damage to the skin caused by too tight fixation; In the embodiment, the working principle of the device is as follows: when the fixed angle needs to be adjusted, the medical staff can loosen the fixed knob 10, so that the sliding pull plate 7 freely slides in the sliding groove 5 of the connecting plate 2; since the sliding pull plate 7 is constrained by the limiting plates 6 on both sides, the moving track is limited in the range of the sliding groove 5, so as to avoid deviation; through the coordinated adjustment of the upper and lower sliding pull plates 7, the lower end fixing belt 12 is inclined by a corresponding angle, so that the fixing belt 12 is attached to the physiological curve of the fracture site; Embodiment 2 The embodiment provides another preferred implementation form of the device; As shown in Figures 1-5 The lower end of the upper clamping plate 1 is provided with a lower clamping plate 4; the rear end of the upper clamping plate 1 and the lower clamping plate 4 is slidably connected with a sliding pull plate 7; and the lower end of the sliding pull plate 7 is movably connected with a fixing belt 12. The rear end of the upper clamping plate 1 and the lower clamping plate 4 is provided with a connecting plate 2; a sliding slot 5 is formed in the middle of the connecting plate 2 and slidably connected with the sliding pull plate 7; the rear end of the sliding slot 5 is slidably connected with a sliding clamping plate 3; the lower end of the sliding pull plate 7 is provided with a clamping plate 11; the lower end of the clamping plate 11 is provided with a clamping groove 17 and detachably connected with the fixing belt 12; and the upper and lower ends of the fixing belt 12 are connected with the clamping groove 17. Further, the upper clamping plate 1 and the lower clamping plate 4 are provided with a fixed plate 18 on both sides; the middle of the fixed plate 18 is provided with a round hole 19 and connected through a screw rod; Further, the connecting plate 2 is symmetrically arranged left and right, which reduces the contact area under the premise of ensuring the fixing rigidity. Further, the middle of the sliding pull plate 7 is provided with a limiting plate 6 symmetrically arranged on both sides and slidably connected with the sliding slot 5; one side is provided with a fixed clamping plate 8 and slidably connected with the outer surface of the connecting plate 2; a hole is formed in the middle of the fixed clamping plate 8 and screw-connected with a fixed screw rod 9; the upper end of the fixed screw rod 9 is provided with a fixed knob 10; the fixed screw rod 9 abuts against the connecting plate 2, and the sliding pull plate 7 is fixed. Further, the front end of the fixing belt 12 is provided with a buckle 13, the rear end is movably connected with the buckle 13, and the outer side is provided with a magic tape 14. In the embodiment, when the cross pin is not placed, the fixed plates 18 on both sides of the upper clamping plate 1 are in contact with the fixed plates 18 on both sides of the lower clamping plate 4, and are connected through the round hole 19 in the middle, the round hole 19 in the middle is rotationally connected through a screw rod, and is threadedly connected with a nut 16 at the bottom, so that the upper and lower clamping plates are fixed through the extrusion of the screw rod and the nut 16.

[0010] Embodiment 3 The embodiment provides a preferred implementation of the fixing belt 12; fractures are divided into different types, and the fixing belt 12 needs to be arranged in different forms according to different fracture types. Transverse fracture: the fracture line of the transverse fracture is nearly perpendicular to the long axis of the bone shaft, and the fracture is relatively stable, but the transverse displacement of the fracture end needs to be prevented; the fixing belt 12 can be arranged in a horizontal surrounding form, the tightness of the fixing belt 12 is adjusted through the upper and lower sliding pull plates 7, the fixing belt 12 is uniformly attached to the upper and lower sides of the fracture site, the fracture end is constrained through the horizontal pressure, the alignment of the fracture site is maintained, and the fracture healing is promoted. Oblique fracture: the fracture line of the oblique fracture is distributed obliquely, and the fracture end is prone to lateral displacement and shortening displacement. For this type of fracture, the fixing belt 12 can be obliquely arranged, so that the direction of the fixing belt 12 intersects with the direction of the fracture line. An opposite restraining force is generated on the fracture end by the oblique tension of the fixing belt 12, which prevents the sliding and displacement of the fracture end, and at the same time increases the contact area between the fixing belt 12 and the fracture site, and enhances the fixing effect; Spiral fracture: the spiral fracture is caused by torsional force, and the fracture line is spiral. The fracture end has poor stability. The fixing belt 12 can be spirally wound on the fractured limb, and the fixing belt 12 is tightly fitted on the spiral fracture site by adjusting the upper and lower sliding pull plate 7, so as to apply pressure to the fracture end from multiple directions, limit the rotation and displacement of the fracture end, and create a stable environment for fracture healing. Comminuted fracture: the fracture end of the comminuted fracture is broken into multiple bone fragments, and the stability of the fracture site is seriously damaged. At this time, multiple fixing belts 12 can be arranged in a cross manner. By using fixing belts 12 with different angles and directions, each fracture fragment can be gathered and fixed together as much as possible. At the same time, the sliding pull plate 7 is used to adjust the tension and angle of each fixing belt 12, so that the fixing belt 12 uniformly disperses the pressure and avoids excessive local pressure, thereby providing good conditions for the reduction and healing of the fracture fragments.

[0011] In summary, the upper clamp plate 1 and the lower clamp plate 4 cooperate with the horizontal needle 15 to fix both ends of the fracture site, and then the sliding pull plate 7 is used to control the inclination of the fixing belt 12. According to the position, shape and type of the fracture, the angle of the sliding pull plate 7 and the fixing belt 12 can be adjusted flexibly, so that the fixing belt 12 can fit different shapes of fracture sites, greatly increase the contact area between the fixing belt 12 and the fracture sites on both sides, change the traditional method of only fixing both ends of the bone segment, effectively improve the stability of the fracture end, create good conditions for fracture healing, and reduce the risk of fracture displacement caused by unstable fixation.

[0012] The preferred embodiments of the application disclosed above are only used to help illustrate the application, and the preferred embodiments do not describe all the details and do not limit the application to the specific embodiments described.

Claims

1. An external fixation device for emergency reduction of fractures of long tubular bones of the extremities, characterized in that, Include: Upper clamping plate, lower clamping plate, sliding pull plate, fixing belt; The lower end of the upper clamping plate is provided with a lower clamping plate; the rear ends of the upper clamping plate and the lower clamping plate are respectively slidably connected with a sliding pull plate; the lower end of the sliding pull plate is movably connected with a fixing belt; The rear ends of the upper clamping plate and the lower clamping plate are provided with connecting plates; the middle part of the connecting plate is provided with a sliding groove slidably connected with a sliding pull plate; the rear end of the sliding groove is slidably connected with a sliding clamping plate; the lower end of the sliding pull plate is provided with a clamping plate; the lower end of the clamping plate is provided with a clamping groove detachably connected with a fixing belt; the upper and lower ends of the fixing belt are connected with the clamping groove.

2. The emergency reduction device for long tubular bone fracture of limbs according to claim 1, characterized in that, The middle part of the upper clamping plate and the lower clamping plate is provided with a hole movably connected with a horizontal needle.

3. The emergency reduction device for long tubular bone fracture of limbs according to claim 1, characterized in that, The middle part of the sliding clamping plate is also provided with a hole movably connected with another horizontal needle; the both ends of the fracture site are fixed.

4. An external fixation device for emergency reduction of fractures of long tubular bones of the extremities according to any one of claims 2 or 3, characterized in that, The both ends of the horizontal needle are provided with threads and nuts; the nuts are fixed.

5. The emergency reduction device for long tubular bone fracture of limbs according to claim 1, characterized in that, The both sides of the upper clamping plate and the lower clamping plate are provided with fixing plates; the middle part of the fixing plate is provided with a circular hole connected with a screw rod.

6. The emergency reduction device for long tubular bone fracture of limbs according to claim 1, characterized in that, The connecting plates are symmetrically arranged left and right, which ensures the fixation rigidity and reduces the contact area.

7. The emergency reduction device for long tubular bone fracture of limbs according to claim 1, characterized in that, The middle part of the sliding pull plate is symmetrically provided with a limiting plate slidably connected with a sliding groove on both sides, and a fixed clamping plate is arranged on one side and slidably connected with the outer surface of the connecting plate; the middle part of the fixed clamping plate is provided with a hole threadedly connected with a fixed screw rod; the upper end of the fixed screw rod is provided with a fixed knob; the fixed screw rod abuts against the connecting plate to fix the sliding pull plate.

8. The emergency reduction device for long tubular bone fracture of limbs according to claim 1, characterized in that, The front end of the fixing belt is provided with a buckle, the rear end is movably connected with the buckle, and the outer side is provided with a magic tape.

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