A shock-absorbing fixing brace applied to patients with elbow joint fracture in pre-hospital emergency treatment

Abstract

This utility model discloses a shock-absorbing fixation brace for pre-hospital emergency elbow fracture patients, relating to the field of joint fixation technology. It includes an upper arm fixation cylinder, a forearm fixation cylinder, and multiple straps respectively mounted on the upper arm and forearm fixation cylinders. The upper arm and forearm fixation cylinders are rotatably connected by a connecting structure. This utility model inflates a first and second airbag by diverting air, causing the first and second airbags to expand and thus changing the internal space of the upper arm and forearm fixation cylinders. This allows it to accommodate patients with different arm circumferences, expanding the applicability of this shock-absorbing fixation brace for pre-hospital emergency elbow fracture patients. It provides good fixation for the arms of different patients. Simultaneously, the first and second airbags have an elastic cushioning effect, preventing secondary trauma to the elbow fracture site caused by arm movement and improving the fixation effect of the brace.

Description

Technical Field

[0001] This utility model relates to the field of joint fixation technology, and in particular to a shock-absorbing fixation brace for patients with elbow fractures in pre-hospital emergency care. Background Technology

[0002] Existing fracture fixation braces used in pre-hospital emergency care can be used to fix elbow fractures. For example, patent document CN206381264U discloses an emergency external fixation brace adaptable to various types of limb fractures, including a molded support body, a bracket, and fixation straps. The molded support body has a bracket and a fixation strap. In practice, medical-grade polyethylene plates are generally used as the support body, which consists of two main cylinders for the upper arm and forearm, with an initial angle of 90 degrees, but this can be adjusted as needed. Velcro is used for fixation. An opening in the main cylinder accommodates the limb, and Velcro is used to secure the limb.

[0003] Based on the above search and combined with existing technology, it was found that the existing braces have insufficient shock absorption effect, which may cause severe pain and secondary injury due to vehicle bumps and sudden braking. Furthermore, the friction between the elbow fracture site and the inside of the brace increases the pain. Existing braces are difficult to fix upper limbs with a small circumference, especially adolescents. This leads to a decrease in the fixation effect of the brace when the elbow fracture occurs in this population. Therefore, there is a need for a shock-absorbing fixation brace for pre-hospital emergency elbow fracture patients. Utility Model Content

[0004] The purpose of this application is to provide a shock-absorbing and fixation brace for patients with elbow fractures in pre-hospital emergency care, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this application provides the following technical solution: a shock-absorbing fixation brace for patients with elbow fractures in pre-hospital emergency care, comprising an upper arm fixation tube, a lower arm fixation tube, and multiple straps respectively disposed on the upper arm fixation tube and the lower arm fixation tube, wherein the upper arm fixation tube and the lower arm fixation tube are rotatably connected by a connecting structure.

[0006] The upper arm fixing cylinder has a first airbag fixed inside. The first airbag is an arc-shaped plate-shaped bladder with the same curvature as the upper arm fixing cylinder. The outer side of the first airbag is fixed to the inner side of the upper arm fixing cylinder, and the inner side of the first airbag is the free side.

[0007] A second airbag is fixed inside the forearm fixation tube. The second airbag is an arc-shaped plate-like bladder with the same curvature as the forearm fixation tube. The outer side of the second airbag is fixed to the inner side of the forearm fixation tube, and the inner side of the second airbag is also a free side.

[0008] A diversion airbag is installed on the inner side of the junction between the upper arm fixing cylinder and the lower arm fixing cylinder. The diversion airbag supplies gas to the first airbag and the second airbag. The exposed ends of the first airbag and the second airbag are provided with exhaust ports for releasing gas, and the exhaust ports are provided with sealing plugs.

[0009] As a further supplement to this solution, the diversion airbag is a flexible bladder that is fixedly fitted to the inner walls of both the upper arm fixing cylinder and the lower arm fixing cylinder. Diversion connectors are fixed on both sides of the diversion airbag. A first air inlet connector is fixed at one end of the first airbag and is adapted to be inserted into one of the diversion connectors. A second air inlet connector is fixed at one end of the second airbag and is adapted to be inserted into the other diversion connector.

[0010] The first air intake connector is connected to one of the split connectors to connect the first airbag and the split airbag, and the second air intake connector is connected to the other split connector to connect the second airbag and the split airbag.

[0011] As a further supplement to this solution, a rigid air intake tube is fixed and connected to one side of the diversion airbag. The end of the air intake tube is connected to an inflatable latex ball through a flexible tube. The inflatable latex ball is used to pressurize the outside air into the diversion airbag.

[0012] As a further supplement to this solution, a gap is formed between the boom fixing cylinder and the forearm fixing cylinder when bent to 90°, and the air intake pipe moves through this gap.

[0013] As a further supplement to this solution, the connection structure includes a rotating connector and a fixed bracket. The rotating connector is a detachable structure and is installed at the junction of the boom fixed cylinder and the forearm fixed cylinder, so that the boom fixed cylinder and the forearm fixed cylinder are rotatably connected. There are two fixed brackets, which are detachably fixed to the boom fixed cylinder and the forearm fixed cylinder respectively by screws. The intersection of the two fixed brackets is rotatably connected by a lockable adjustment plate.

[0014] As a further supplement to this solution, the rotating connector includes three fixed bushings, two of which are fixed to the lower end of the boom fixing cylinder, one fixed bushing is fixed to one end of the forearm fixing cylinder, and the other fixed bushing is inserted between the two fixed bushings and coaxially arranged.

[0015] Among them, one of the fixed bushings fixed to the lower end of the boom fixing cylinder has a limit groove at one end, and the other fixed bushing fixed to the lower end of the boom fixing cylinder has an internal thread hole on one side.

[0016] The rotating connector also includes a shaft that moves through three fixed bushings. One end of the shaft has a bolt portion that matches the thread of the internal threaded hole, and the other end of the shaft has a limiting internal hexagonal head that matches the limiting groove.

[0017] In summary, the technical effects and advantages of this utility model are as follows:

[0018] 1. In this utility model, the first and second airbags are inflated by a diversion airbag, which expands the first and second airbags, thereby changing the accommodating space inside the upper arm fixation cylinder and the lower arm fixation cylinder. This allows it to be used by patients with different arm circumferences, expanding the applicability of this shock-absorbing fixation brace for pre-hospital emergency elbow fracture patients. It can achieve good fixation effect on the arms of different patients. At the same time, the first and second airbags have an elastic cushioning effect, avoiding secondary trauma to the elbow fracture site caused by the patient's arm movement, and improving the fixation effect of the brace.

[0019] 2. In this utility model, by repeatedly squeezing the inflatable latex ball, the inflatable latex ball draws in external air and delivers it to the diversion airbag through the rigid air inlet tube. Then, through the two diversion connectors in the diversion airbag, it delivers the air to the first airbag and the second airbag respectively. This causes the first airbag and the second airbag to expand and deform, and fit the patient's arm, thereby preventing the patient's arm from shaking and ensuring a good fixation effect. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure in this embodiment;

[0022] Figure 2 This is a schematic diagram of the disassembled structure of the upper arm fixing cylinder and the lower arm fixing cylinder in this embodiment;

[0023] Figure 3 This is a schematic diagram of the first airbag, the second airbag, the diversion airbag, and the inflatable latex ball in this embodiment.

[0024] In the diagram: 1. Boom fixing cylinder; 2. Arm fixing cylinder; 3. Strap; 4. Rotating connector; 41. Fixing bushing; 411. Limiting groove; 412. Internal threaded hole; 42. Shaft; 421. Bolt part; 422. Limiting hexagonal head; 5. First airbag; 51. First air inlet connector; 6. Second airbag; 61. Second air inlet connector; 7. Diverter airbag; 71. Diverter connector; 72. Air inlet pipe; 8. Inflatable latex ball; 9. Fixing bracket; 91. Lockable adjustment disc. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example: Reference Figures 1-3 The present invention is a shock-absorbing and fixation brace for patients with elbow fractures in pre-hospital emergency care, including an upper arm fixation cylinder 1, a lower arm fixation cylinder 2, and multiple straps 3 respectively disposed on the upper arm fixation cylinder 1 and the lower arm fixation cylinder 2. The upper arm fixation cylinder 1 and the lower arm fixation cylinder 2 are rotatably connected by a connecting structure.

[0027] The upper arm fixing cylinder 1 has a first airbag 5 fixed inside. The first airbag 5 is an arc-shaped plate-shaped bladder with the same curvature as the upper arm fixing cylinder 1. The outer side of the first airbag 5 is fixed to the inner side of the upper arm fixing cylinder 1, and the inner side of the first airbag 5 is the free side.

[0028] A second airbag 6 is fixed inside the forearm fixation cylinder 2. The second airbag 6 is an arc-shaped plate-shaped bladder with the same curvature as the forearm fixation cylinder 2. The outer side of the second airbag 6 is fixed to the inner side of the forearm fixation cylinder 2, and the inner side of the second airbag 6 is also a free side.

[0029] A diversion airbag 7 is installed on the inner side of the junction between the upper arm fixing cylinder 1 and the lower arm fixing cylinder 2. The diversion airbag 7 supplies gas to the first airbag 5 and the second airbag 6. The exposed ends of the first airbag 5 and the second airbag 6 are provided with exhaust ports for releasing gas, and the exhaust ports are provided with sealing plugs.

[0030] Based on the above structure, during use, medical staff can inflate the first airbag 5 and the second airbag 6 through the shunt airbag 7, causing the first airbag 5 and the second airbag 6 to expand, thereby changing the accommodating space inside the upper arm fixation cylinder 1 and the forearm fixation cylinder 2. This allows it to be used by patients with different arm circumferences, expanding the applicability of this shock-absorbing fixation brace for pre-hospital emergency elbow fracture patients. It can provide good fixation for the arms of different patients. At the same time, the first airbag 5 and the second airbag 6 have an elastic cushioning effect, avoiding secondary trauma to the elbow fracture site caused by the patient's arm movement (voluntary movement or due to vehicle bumps, accidental contact, etc.), thus improving the fixation effect of the brace.

[0031] Furthermore, the diversion airbag 7 is a flexible bladder that is fixedly fitted to the inner walls of both the upper arm fixing cylinder 1 and the lower arm fixing cylinder 2. Diversion connectors 71 are fixed on both sides of the diversion airbag 7. One end of the first airbag 5 is fixed with a first air inlet connector 51 that is compatible with one of the diversion connectors 71. One end of the second airbag 6 is fixed with a second air inlet connector 61 that is compatible with the other diversion connector 71.

[0032] The first air intake connector 51 is connected to one of the split connectors 71 to connect the first airbag 5 and the split airbag 7, and the second air intake connector 61 is connected to the other split connector 71 to connect the second airbag 6 and the split airbag 7.

[0033] A rigid air inlet pipe 72 is fixed to one side of the diversion airbag 7 and connected to it. The end of the air inlet pipe 72 is connected to an inflatable latex ball 8 through a flexible tube. The inflatable latex ball 8 is used to press outside air into the diversion airbag 7.

[0034] After the upper arm fixation tube 1 and the lower arm fixation tube 2 are fixed to the patient's upper arm and lower arm respectively by the strap 3, if the patient's arm circumference does not match the accommodating space inside the upper arm fixation tube 1 and the lower arm fixation tube 2 (i.e. the patient's arm circumference is small), the medical staff can repeatedly squeeze the inflatable latex ball 8 to allow the inflatable latex ball 8 to draw in external air and deliver it to the shunt air bag 7 through the rigid air inlet tube 72. Then, through the two shunt connectors 71 inside the shunt air bag 7, the air is delivered to the first air bag 5 and the second air bag 6 respectively. This causes the first air bag 5 and the second air bag 6 to expand and deform, fitting the patient's arm, thereby preventing the patient's arm from shaking and ensuring a good fixation effect.

[0035] At the same time, when the patient's arm is subjected to unexpected force such as bumps or impacts, the first airbag 5 and the second airbag 6 can use their own elasticity to play a good role in cushioning the bumps and impacts, thereby avoiding large displacement of the patient's arm due to force, and ensuring that the patient's elbow joint fracture site will not be displaced and cause secondary trauma.

[0036] Furthermore, a gap is formed between the upper arm fixing cylinder 1 and the lower arm fixing cylinder 2 when bent to 90°, and the air intake pipe 72 moves through this gap to ensure the air delivery effect when bent and avoid poor air delivery.

[0037] Furthermore, the connection structure includes a rotating connector 4 and a fixed bracket 9. The rotating connector 4 is a detachable structure. The rotating connector 4 is installed at the junction of the upper arm fixing cylinder 1 and the lower arm fixing cylinder 2, so that the upper arm fixing cylinder 1 and the lower arm fixing cylinder 2 are rotatably connected. There are two fixed brackets 9, which are detachably fixed to the upper arm fixing cylinder 1 and the lower arm fixing cylinder 2 respectively by screws. The intersection of the two fixed brackets 9 is rotatably connected by a lockable adjusting plate 91.

[0038] By using the dual connection method of rotating connector 4, fixed bracket 9 and lockable adjustment plate 91, a more stable connection effect can be achieved between upper arm fixation tube 1 and lower arm fixation tube 2. At the same time, different models of upper arm fixation tube 1 or lower arm fixation tube 2 can be replaced by disassembling upper arm fixation tube 1 or lower arm fixation tube 2 to adapt to patients with different arm circumference conditions, making it more flexible to use and further expanding its applicability.

[0039] It should be noted that the lockable adjustment disc 91 is existing technology, designed to enable adjustable rotational connection between the two fixed supports 9. For example, the combination of two discs with a locking bolt, its specific structure and working principle are existing technology and will not be described in detail here.

[0040] In addition, the rotating connector 4 is the center of rotation, and the center of rotation of the locking adjustment disc 91 is the same as the center of rotation of the rotating connector 4, so that the boom fixing cylinder 1 and the forearm fixing cylinder 2 can be more securely connected while ensuring their rotatable adjustment effect.

[0041] Furthermore, the rotating connector 4 includes three fixed bushings 41, two of which are fixed to the lower end of the upper arm fixing cylinder 1, another fixed bushing 41 is fixed to one end of the lower arm fixing cylinder 2, and the third fixed bushing 41 is inserted between the two fixed bushings 41 and coaxially arranged.

[0042] Among them, one of the fixed bushings 41 fixed to the lower end of the boom fixing cylinder 1 has a limit groove 411 at one end, and the other fixed bushing 41 fixed to the lower end of the boom fixing cylinder 1 has an internal thread hole 412 on one side.

[0043] The rotating connector 4 also includes a shaft 42, which movably passes through three fixed bushings 41. One end of the shaft 42 has a bolt portion 421 that is threaded to fit the internal threaded hole 412, and the other end of the shaft 42 has a limiting internal hexagon head 422 that fits to the limiting groove 411.

[0044] During connection, medical staff only need to insert the shaft 42 into the three fixed bushings 41 and screw the bolt part 421 into the internal thread hole 412, so that the limiting internal hexagon head 422 rotates and is embedded in the limiting groove 411, thereby connecting the three fixed bushings 41 in a rotatable manner, thus realizing the rotatable connection between the upper arm fixing cylinder 1 and the lower arm fixing cylinder 2.

[0045] The working principle of this utility model is as follows: In daily use, medical staff first use straps 3 to fix the upper arm fixation cylinder 1 and the lower arm fixation cylinder 2 to the upper arm and lower arm of the patient with an elbow fracture, respectively, to fix the patient's arm. If the patient's arm circumference is small and cannot fit the upper arm fixation cylinder 1 and the lower arm fixation cylinder 2, the medical staff further squeezes the inflatable latex ball 8 repeatedly, so that the inflatable latex ball 8 draws in external air and delivers it to the shunt air bag 7 through the rigid air inlet tube 72. Then, through the two shunt connectors 71 in the shunt air bag 7, it delivers the air to the first air bag 5 and the second air bag 6, respectively. This causes the first air bag 5 and the second air bag 6 to expand and deform, fitting the patient's arm, thereby preventing the patient's arm from shaking and ensuring a good fixation effect.

[0046] At the same time, when the patient's arm is subjected to unexpected force such as bumps or impacts, the first airbag 5 and the second airbag 6 can use their own elasticity to play a good buffering role against the bumps and impacts, thereby avoiding large displacement of the patient's arm due to force, and ensuring that the patient's elbow joint fracture site will not be displaced and cause secondary trauma.

[0047] In addition, this shock-absorbing fixation brace for pre-hospital emergency elbow fracture patients can also be used by patients with different arm circumferences, expanding the applicability of this shock-absorbing fixation brace for pre-hospital emergency elbow fracture patients, and can achieve good fixation effect on the arms of different patients.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A shock-absorbing and fixation brace for patients with elbow fractures in pre-hospital emergency care, comprising an upper arm fixation sleeve (1), a forearm fixation sleeve (2), and multiple straps (3) respectively disposed on the upper arm fixation sleeve (1) and the forearm fixation sleeve (2), wherein the upper arm fixation sleeve (1) and the forearm fixation sleeve (2) are rotatably connected by a connecting structure, characterized in that: The upper arm fixing cylinder (1) is fixed with a first airbag (5). The first airbag (5) is an arc-shaped plate-shaped bladder with the same curvature as the upper arm fixing cylinder (1). The outer side of the first airbag (5) is fixed to the inner side of the upper arm fixing cylinder (1). The inner side of the first airbag (5) is the free side. The forearm fixing cylinder (2) is fixed with a second airbag (6). The second airbag (6) is an arc-shaped plate-shaped bladder with the same curvature as the forearm fixing cylinder (2). The outer side of the second airbag (6) is fixed to the inner side of the forearm fixing cylinder (2). The inner side of the second airbag (6) is also a free side. A diversion airbag (7) is installed on the inner side of the junction between the upper arm fixing cylinder (1) and the lower arm fixing cylinder (2). The diversion airbag (7) supplies gas to the first airbag (5) and the second airbag (6). The exposed ends of the first airbag (5) and the second airbag (6) are provided with exhaust ports for releasing gas, and the exhaust ports are provided with sealing plugs. The connection structure includes a rotating connector (4) and a fixed bracket (9). The rotating connector (4) is a detachable structure. The rotating connector (4) is installed at the junction of the upper arm fixing cylinder (1) and the lower arm fixing cylinder (2) and makes the upper arm fixing cylinder (1) and the lower arm fixing cylinder (2) rotatably connected. There are two fixed brackets (9) and they are detachably fixed to the upper arm fixing cylinder (1) and the lower arm fixing cylinder (2) respectively by screws. The intersection of the two fixed brackets (9) is rotatably connected by a lockable adjusting disc (91).

2. The shock-absorbing and fixation brace for pre-hospital emergency treatment of elbow fracture patients according to claim 1, characterized in that: The diversion airbag (7) is a flexible bladder that is fixedly fitted to the inner walls of the upper arm fixing cylinder (1) and the lower arm fixing cylinder (2). Diversion connectors (71) are fixed on both sides of the diversion airbag (7). The first airbag (5) has a first air inlet connector (51) fixed at one end, which is compatible with one of the diversion connectors (71). The second airbag (6) has a second air inlet connector (61) fixed at one end, which is compatible with the other diversion connector (71). The first air intake connector (51) is connected to one of the split connectors (71) to connect the first airbag (5) and the split airbag (7), and the second air intake connector (61) is connected to the other split connector (71) to connect the second airbag (6) and the split airbag (7).

3. A shock-absorbing and fixation brace for pre-hospital emergency care of elbow fracture patients as described in claim 2, characterized in that: One side of the diversion airbag (7) is fixed and connected to a rigid air inlet pipe (72). The end of the air inlet pipe (72) is connected to an inflatable latex ball (8) through a flexible tube. The inflatable latex ball (8) is used to press external air into the diversion airbag (7).

4. A shock-absorbing and fixation brace for pre-hospital emergency care of elbow fracture patients as described in claim 3, characterized in that: When the upper arm fixing cylinder (1) and the lower arm fixing cylinder (2) are bent to 90°, a gap is formed, and the air intake pipe (72) moves through this gap.

5. A shock-absorbing and immobilizing brace for pre-hospital emergency care of elbow fracture patients as described in claim 1, characterized in that: The rotating connector (4) includes three fixed bushings (41), two of which are fixed to the lower end of the upper arm fixing cylinder (1), one of which is fixed to one end of the lower arm fixing cylinder (2), and the other of which is inserted between the two fixed bushings (41) and coaxially arranged. One of the fixed bushings (41) that is fixed to the lower end of the boom fixing cylinder (1) has a limit groove (411) at one end, and the other fixed bushing (41) that is fixed to the lower end of the boom fixing cylinder (1) has an internal thread hole (412) on one side. The rotating connector (4) also includes a shaft (42) that movably passes through three fixed bushings (41). One end of the shaft (42) is formed with a bolt portion (421) that is threaded to fit the internal thread hole (412), and the other end of the shaft (42) is formed with a limiting internal hexagonal head (422) that is threaded to fit the limiting groove (411).

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