External fixator for chest fracture

Abstract

The invention relates to the technical field of external fixator for fracture, in particular to an external fixator for chest fracture. According to the technical scheme, the device comprises two fixing plates and further comprises a plastic module installed in the fixing plates, a plurality of elastic flexible plates are installed on the plastic module, the plastic module changes the bending degree of the flexible plates at different positions according to the contour of the human body, and the plastic module fixes the deformed flexible plates. According to the invention, the shaping plate is effectively prevented from applying extra pressure to the human body, so that the human body is prevented from being locally pressed, the comfort of a patient is effectively improved, and compression pain, numbness and even blood circulation disorder caused by excessive local pressure are prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of fracture external fixators, and particularly to a chest fracture external fixator. Background Art

[0002] The external fixator for chest fractures mainly includes a sternum fixing plate, which is also known as a rib fixing plate or a rib fracture external fixation splint. It is mainly used for the fixation of patients with rib fractures, bone fractures, and soft tissue injuries in orthopedics, as well as patients after cardiothoracic surgery. The fixing plate stabilizes the fracture site through an external support structure, and this support can be the overall fixation of the chest cavity or the fixation of specific ribs. The fixing plate restricts the excessive movement of the chest, reduces the relative displacement of the fracture ends, and thus avoids further injury. The fixing plate can disperse the pressure acting on the fracture site, reduce local pressure concentration, help relieve pain and promote healing.

[0003] The curvature of the fixing plate needs to match the patient's body part to ensure the fixation effect. However, the fixing plate generally has a certain elasticity and can be appropriately adjusted according to the human contour. However, the elasticity of the fixing plate itself acts on the human body, which cannot guarantee the comfort of the patient, may cause excessive local pressure, resulting in compressive pain, numbness, and even blood circulation disorders. Summary of the Invention

[0004] The purpose of the present invention is to propose a chest fracture external fixator for the problems existing in the background art.

[0005] Technical solution of the present invention: A chest fracture external fixator includes two fixing plates, and further includes:

[0006] A plasticity module installed inside the fixing plate, a plurality of flexible plates with elasticity are installed on the plasticity module, the plasticity module changes the bending degree of the flexible plates at different positions according to the human contour, and the plasticity module fixes the deformed flexible plates.

[0007] Optionally, the plasticity module includes a plurality of connecting blocks fixedly installed inside the fixing plate, adjacent two of the connecting blocks are rotationally connected through connecting connectors, the same flexible plate is slidably connected to the adjacent two connecting blocks, sliders are slidably installed at both ends of the flexible plate, and the sliders are fixedly connected to the connecting blocks.

[0008] Optionally, the connector includes a connecting plate, and both ends of the connecting plate are respectively rotationally connected to the adjacent two connecting blocks.

[0009] Optionally, an elastic strip is fixedly installed between two adjacent connecting blocks. The middle part of the elastic strip has elasticity, and both ends cannot be deformed. The plastic module further includes a positioning component installed on the elastic strip, and the positioning component restricts the bending degree of the elastic strip.

[0010] Optionally, the positioning component includes limiting rods rotatably installed at both ends of the elastic strip. Sealing heads are fixedly installed on the limiting rods. A sleeve is slidably installed on the two limiting rods. The sealing heads are located inside the sleeve, and a connecting head is fixedly installed on the sleeve.

[0011] Optionally, an adjusting plate is fixedly installed on the fixed plate. A cavity is provided inside the adjusting plate. A plurality of connecting holes are provided on the adjusting plate. The connecting holes correspond to the connecting heads one by one and are connected by hoses. A sealing plate is slidably installed inside the cavity. A positioning rod is fixedly installed on the sealing plate. The positioning rod penetrates through one side of the adjusting plate and extends to the outside of the adjusting plate. A limiting component for fixing the positioning rod is installed on the adjusting plate.

[0012] Optionally, the limiting component includes a cylinder fixedly installed on the adjusting plate. A plug is slidably installed inside the cylinder. The plug is fixedly connected to the positioning rod. Both ends of the cylinder are communicated through a pipeline. A valve is fixedly installed on the pipeline. The cylinder, the pipeline and the inside of the valve are all filled with a transmission medium.

[0013] Optionally, the inside of the sleeve between the two sealing heads, the connecting head, the hose, and the inside of the adjusting plate near the connecting hole are all filled with a transmission medium.

[0014] Optionally, a connecting belt is fixedly installed on one of the fixed plates. A rough surface of a magic tape is fixedly installed on one side of the connecting belt. A fine surface of a magic tape is fixedly installed on the other fixed plate.

[0015] Optionally, shoulder straps are fixedly installed on both sides of one of the fixed plates. The other ends of the shoulder straps are fixedly connected to the other fixed plate.

[0016] In summary, the present application includes at least one of the following beneficial technical effects:

[0017] By providing a plurality of flexible plates in the present invention, the flexible plates at various positions can be bent to match the bending degree of the current position, which can effectively improve the degree of wrapping of the fixed plate around the chest, can provide better fastening force for the sternum, and can fix the shaped flexible plates, which can effectively prevent the elastic force of the flexible plates themselves from acting on the human body, and further can effectively prevent the shaping plate from exerting additional pressure on the human body, thereby ensuring that the human body will not be locally compressed, effectively improving the comfort of the patient, and preventing excessive local pressure from causing compressive pain, numbness or even blood circulation disorders. Brief Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of an external fixator for fractures;

[0019] Figure 2 It is a schematic structural diagram of a plastic module;

[0020] Figure 3 It is Figure 2 a partial enlarged view of part A in

[0021] Figure 4 a connection schematic diagram of two adjacent connection blocks;

[0022] Figure 5 It is a schematic structural diagram of the inside of the sleeve;

[0023] Figure 6 It is Figure 5 a partial enlarged view of part B in

[0024] Figure 7 a schematic structural diagram of the adjusting plate;

[0025] Figure 8 a schematic structural diagram of the inside of the cylinder.

[0026] Reference Numerals: 1, fixed plate; 101, connecting band; 102, shoulder strap; 2, connecting block; 3, connecting plate; 4, elastic strip; 401, limiting rod; 402, sealing head; 403, sleeve; 404, connecting head; 405, adjusting plate; 406, connecting hole; 407, sealing plate; 408, positioning rod; 409, plug; 410, cylinder; 411, pipeline; 412, valve; 5, flexible plate; 501, slider. Detailed Description of the Preferred Embodiments

[0027] The technical solutions of the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0028] Generally, the components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the present application claimed, but merely represents selected embodiments of the present application.

[0029] All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the scope of protection of the present application.

[0030] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0031] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0032] As Figure 1 shown, a chest fracture external fixator proposed by the present invention includes two fixing plates 1. A connecting band 101 is fixedly installed on one of the fixing plates 1. A rough surface of a magic tape is fixedly installed on one side of the connecting band 101, and a fine surface of a magic tape is fixedly installed on the other fixing plate 1. By the mutual cooperation of the connecting band 101, the rough surface of the magic tape, and the fine surface of the magic tape, the two fixing plates 1 can be fixed to each other, so that the two fixing plates 1 are fixed on the chest of the patient. By adjusting the position of the connecting band 101, the tightness between the two fixing plates 1 can be adjusted, so that the fixing plates 1 exert pressure on the human chest. Shoulder straps 102 are fixedly installed on both sides of one of the fixing plates 1, and the other ends of the shoulder straps 102 are fixedly connected to the other fixing plate 1. The fixing plates 1 can be hung on the shoulders through the shoulder straps 102, which can effectively prevent the fixing plates 1 from slipping downward under the action of gravity, and the shoulder straps 102 can effectively play an auxiliary supporting role for the fixing plates 1.

[0033] Please refer to Figure 2, the fixator of this embodiment further includes a plastic module installed inside the fixing plate 1. A plurality of flexible plates 5 with elasticity are installed on the plastic module. The plastic module changes the curvature of the flexible plates 5 at different positions according to the human body contour, and the plastic module fixes the deformed flexible plates 5. By providing a plurality of flexible plates 5 and distributing them at different positions of the fixing plate 1, when the fixing plate 1 wraps around the chest cavity, the flexible plates 5 can be distributed at various positions on the chest. Moreover, the flexible plates 5 at various positions are plastically deformed so that the flexible plates 5 at various positions can be bent in a manner matching the curvature of the current position, enabling the flexible fixing plate 1 to be bent correspondingly. This can effectively improve the degree of wrapping of the fixing plate 1 around the chest, provide better fastening force to the sternum, and fix the plastically deformed flexible plates 5, effectively preventing the elastic force of the flexible plates 5 themselves from acting on the human body. Furthermore, it can effectively prevent the shaping plate from exerting additional pressure on the human body, thus ensuring that the human body will not be locally compressed, effectively improving the comfort of the patient, and preventing excessive local pressure from causing compressive pain, numbness, or even blood circulation disorders.

[0034] Among them, as Figure 3 , Figure 4 and Figure 5 shown, the plastic module includes a plurality of connecting blocks 2 fixedly installed inside the fixing plate 1. Adjacent two connecting blocks 2 are rotationally connected by a connecting member. The same flexible plate 5 is slidably connected to the adjacent two connecting blocks 2. Sliders 501 are slidably installed at both ends of the flexible plate 5, and the sliders 501 are fixedly connected to the connecting blocks 2. When the fixing plate 1 is wrapped around the chest cavity, the fixing plate 1 will bend along with the curvature of the chest cavity. At this time, the bent fixing plate 1 will drive the adjacent two connecting blocks 2 to rotate relative to each other. When the two connecting blocks 2 rotate relative to each other, a certain angle will appear between the two connecting blocks 2. At this time, the flexible plate 5 slidably connected to the adjacent two will bend under the action of the angle between the two connecting blocks 2, and under the action of the elastic force of the flexible plate 5 itself, the flexible plate 5 can form a curvature suitable for this angle. The connecting member includes a connecting plate 3, and both ends of the connecting plate 3 are rotationally connected to the adjacent two connecting blocks 2. When the two connecting blocks 2 rotate relative to each other, the two connecting blocks 2 will rotate along the connecting plate 3.

[0035] Furthermore Figure 5Among them, an elastic strip 4 is fixedly installed between two adjacent connecting blocks 2. The middle part of the elastic strip 4 has elasticity and the two ends cannot be deformed. When two adjacent connecting blocks 2 rotate relative to each other, the elastic strip 4 connected to them will be bent. At this time, the middle part of the elastic strip 4 will be deformed. When the deformable area of this part cannot be deformed, the relative rotation between the two connecting blocks 2 cannot be realized, that is, the two connecting blocks 2 form a relatively fixed relationship. The plastic module further includes a positioning component installed on the elastic strip 4, and the positioning component restricts the bending degree of the elastic strip 4. When the two connecting blocks 2 complete rotation along with the curvature of the chest cavity, the elastic strip 4 will also form a certain bending degree at this time. Fixing the bending degree of the elastic strip 4 at this time can fix the two connecting blocks 2.

[0036] Among them, in Figure 6 Among them, the positioning component includes a limiting rod 401 rotatably installed at both ends of the elastic strip 4. It should be noted that the position of the limiting rod 401 is at the junction of the area where the elastic strip 4 can undergo elastic deformation and the area where it can be deformed. A sealing head 402 is fixedly installed on the limiting rod 401. A sleeve 403 is slidably installed on the two limiting rods 401. The sealing head 402 is located inside the sleeve 403. A connecting head 404 is fixedly installed on the sleeve 403. When the elastic strip 4 undergoes bending deformation, both sides of the elastic strip 4 will drive the limiting rods 401 on both sides to rotate, and the rotating limiting rods 401 will drive the sealing head 402 to slide inside the sleeve 403.

[0037] In this embodiment, as Figure 7 , Figure 8As shown, an adjusting plate 405 is fixedly installed on the fixing plate 1. A cavity is provided inside the adjusting plate 405. A plurality of connection holes 406 are provided on the adjusting plate 405. The connection holes 406 correspond to the connection heads 404 one by one and are connected through hoses. A sealing plate 407 is slidably installed inside the cavity. A positioning rod 408 is fixedly installed on the sealing plate 407. The positioning rod 408 penetrates through one side of the adjusting plate 405 and extends to the outside of the adjusting plate 405. A limiting component for fixing the positioning rod 408 is installed on the adjusting plate 405. It should be noted that a transmission medium is filled inside the sleeve 403 and between the two sealing heads 402, inside the connection head 404, inside the hose, and on the side of the adjusting plate 405 close to the connection hole 406. The transmission medium is a liquid that cannot be compressed under the current working environment. When the two sealing heads 402 approach each other, the transmission medium between the two sealing heads 402 will be squeezed, and then the transmission medium can be squeezed into the inside of the adjusting plate 405 to push the sealing plate 407 to move, and then the positioning rod 408 can be driven to move. When the positioning rod 408 cannot move, the sealing plate 407 will not be able to move, and then the hydraulic medium inside the sleeve 403 cannot move to the inside of the adjusting plate 405, and then the two sealing heads 402 cannot move, and then the limiting rod 401 moves, so that the elastic strip 4 cannot continue to contract. When the elastic strip 4 expands outwards, it is necessary to pull the sealing head 402 to move. At this time, the space between the two sealing heads 402 will expand, and then hydraulic medium is needed to fill it. When the positioning rod cannot move, the hydraulic medium cannot move into the two sealing heads 402. At this time, the two sealing heads 402 that continue to move away from each other will need to evacuate the two sealing heads 402 to continue moving, and the elastic strip 4 does not have such elasticity. Therefore, when the positioning rod 408 is fixed, the curvature of the elastic strip 4 will also be fixed, and then the adjacent two connection blocks 2 are fixed.

[0038] Further, as Figure 8, the limiting component includes a cylinder 410 fixedly installed on the adjusting plate 405. A plug 409 is slidably installed in the cylinder 410. The plug 409 is fixedly connected to the positioning rod 408. Both ends of the cylinder 410 are communicated through a pipeline 411. A valve 412 is fixedly installed on the pipeline 411. The cylinder 410, the pipeline 411 and the inside of the valve 412 are all filled with a transmission medium. When the positioning rod 408 moves, it will drive the plug 409 to move. The moving plug 409 will squeeze the transmission medium inside the cylinder 410. When the valve 412 is opened, the transmission medium on one side inside the cylinder 410 can move to the other side of the cylinder 410 through the pipeline 411 under the action of the plug 409. When the valve 412 is closed, the transmission media on both sides of the cylinder 410 cannot flow to each other, so that the plug 409 cannot move, and thus whether the positioning rod 408 can move can be controlled by controlling the opening and closing of the valve 412.

[0039] The working principle of this embodiment is as follows: When the fixing plate 1 is wrapped around the chest cavity, the fixing plate 1 will bend along with the curvature of the chest cavity. At this time, the bent fixing plate 1 will drive two adjacent connecting blocks 2 to rotate relative to each other. When the two connecting blocks 2 rotate relative to each other, a certain angle will appear between the two connecting blocks 2. At this time, the flexible plate 5 slidably connected to the adjacent two will bend under the action of the angle between the two connecting blocks 2, and under the action of the elastic force of the flexible plate 5 itself, the flexible plate 5 can form a curvature suitable for this angle, which can effectively improve the wrapping degree of the fixing plate 1 on the chest and provide better fastening force for the sternum.

[0040] When the two sealing heads 402 approach each other, they will squeeze the transmission medium between the two sealing heads 402, and then the transmission medium can be squeezed into the adjusting plate 405 to push the sealing plate 407 to move, and then drive the positioning rod 408 to move. When the positioning rod 408 cannot move, the two sealing heads 402 cannot move, so that the elastic strip 4 cannot continue to contract. When the elastic strip 4 expands outwards, it is necessary to evacuate the two sealing heads 402 to continue moving, but the elastic strip 4 does not have such elastic force. Therefore, when the positioning rod 408 is fixed, the bending degree of the elastic strip 4 will also be fixed, and then the two adjacent connecting blocks 2 are fixed.

[0041] The above specific embodiments are only several alternative embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A thoracic fracture external fixator, comprising two fixing plates (1), characterized in that: Also includes: A plastic module is installed inside a fixing plate (1), a plurality of flexible plates (5) having elasticity are installed on the plastic module, the plastic module changes the curvature of the flexible plates (5) at different positions according to the contour of the human body, and the plastic module fixes the deformed flexible plates (5).

2. A thoracic fracture external fixator according to claim 1, characterized in that: The plastic module comprises a plurality of connection blocks (2) fixedly mounted in a fixed plate (1), two adjacent connection blocks (2) being rotatably connected via a connecting piece, the same flexible plate (5) being slidably connected to two adjacent connection blocks (2), sliders (501) being slidably mounted at both ends of the flexible plate (5), and the sliders (501) being fixedly connected to the connection blocks (2).

3. A chest fracture external fixator according to claim 2, characterized in that: The connecting member comprises a connecting plate (3), and two ends of the connecting plate (3) are respectively rotatably connected to two adjacent connecting blocks (2).

4. A chest fracture external fixator according to claim 3, characterized in that: An elastic strip (4) is fixedly installed between two adjacent connection blocks (2); the middle portion of the elastic strip (4) is elastic and the two ends cannot be deformed; the plastic module also includes a positioning component installed on the elastic strip (4); the positioning component limits the curvature of the elastic strip (4).

5. A chest fracture external fixator according to claim 4, characterized in that: The positioning assembly comprises a limiting rod (401) rotatably mounted on both ends of the elastic strip (4), a sealing head (402) being fixedly mounted on the limiting rod (401), a sleeve (403) being slidably mounted on the two limiting rods (401), the sealing head (402) being located inside the sleeve (403), and a connecting head (404) being fixedly mounted on the sleeve (403).

6. A chest fracture external fixator according to claim 5, characterized in that: An adjusting plate (405) is fixedly mounted on the fixing plate (1), a cavity is provided in the adjusting plate (405), a plurality of connecting holes (406) are provided on the adjusting plate (405), the connecting holes (406) correspond to the connecting heads (404) one by one and are connected via a hose, a sealing plate (407) is slidably mounted in the cavity, a positioning rod (408) is fixedly mounted on the sealing plate (407), the positioning rod (408) passes through one side of the adjusting plate (405) and extends to the outside of the adjusting plate (405), and a limiting component for fixing the positioning rod (408) is mounted on the adjusting plate (405).

7. A chest fracture external fixator according to claim 6, characterized in that: The limit assembly comprises a cylinder (410) fixedly mounted on the adjustment plate (405), a plug (409) slidably mounted inside the cylinder (410), the plug (409) being fixedly connected to the positioning rod (408), two ends of the cylinder (410) being connected via a pipe (411), a valve (412) being fixedly mounted on the pipe (411), and the cylinder (410), the pipe (411) and the valve (412) are all filled with a transmission medium.

8. The thoracic fracture external fixator according to claim 7, characterized in that: The interior of the sleeve (403) located between the two sealing heads (402), the connecting head (404), the hose, and the side of the adjusting plate (405) close to the connecting hole (406) are all filled with transmission medium.

9. The thoracic fracture external fixator according to claim 1, characterized in that: A connecting belt (101) is fixedly mounted on one of the fixing plates (1), a rough Velcro surface is fixedly mounted on one side of the connecting belt (101), and a fine Velcro surface is fixedly mounted on the other fixing plate (1).

10. The thoracic fracture external fixator according to claim 1, characterized in that: Shoulder straps (102) are fixedly mounted on both sides of one of the fixing plates (1), and the other end of the shoulder strap (102) is fixedly connected to the other fixing plate (1).

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