Traction emergency stretcher for closed fracture of four limbs

Abstract

The invention discloses a traction emergency stretcher for closed fracture of four limbs, which belongs to the field of medical instruments and comprises a stretcher body, a traction mechanism and two rotary folding mechanisms, grooves are formed in two sides of the stretcher body, one end of each rotary folding mechanism is arranged in the corresponding groove, and the other end of each rotary folding mechanism is connected with the traction mechanism. The rotary folding mechanism can rotate along the groove and be folded on one side of the stretcher main body; the traction mechanism is used for traction and fixation of the fractured limb of the patient. The traction mechanism and the two rotary folding mechanisms are matched to complete traction and fixation of fractured limbs of a patient with closed limb fractures, and the problems that the fixing range and angle of the fractured limbs are limited by using a cushion and a bandage, and the patient with the fracture angle, the fracture position and the fracture amplitude cannot be effectively fixed are solved; fractured limbs of a patient with closed limb fractures are effectively fixed, the stable state of the fractured positions is maintained, and first aid and transfer of the patient with closed limb fractures are facilitated.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and particularly relates to a traction first-aid stretcher for closed fractures of the extremities. Background Art

[0002] Closed fractures of the extremities refer to a type of fracture where the skin or mucous membrane at the fracture site remains intact and the fracture ends do not communicate with the outside. Such fractures are relatively common in the extremities and are usually caused by direct or indirect violence, mostly due to traffic accidents, high-altitude falls, sports injuries, falls of the elderly and children, etc. When patients with closed fractures of the extremities are being transported for first aid, a stretcher is required, and some appliances are used to temporarily fix the fracture site to avoid deterioration of the injury during transportation and to relieve a certain degree of pain.

[0003] However, the current stretchers for transporting fracture patients mainly have the following problems: (1) The fixation effect on the patient's extremities is limited, and rapid fixation of the fractured limb cannot be achieved; (2) Most use straps or cushions to temporarily restrain the fracture area, but the connection method between the straps and cushions and the stretcher is unstable, and the fracture cannot be maintained in a stable state; (3) The range and angle of fixation of the cushions and straps on the fractured limb are limited, and effective fixation cannot be performed on patients with fractures with angles and positions biased upwards and large amplitudes; (4) The fixed straps or cushions occupy a relatively large amount of space and cannot be perfectly integrated with the stretcher, which is not conducive to rapid use and transportation. Summary of the Invention

[0004] In view of the above problems, the present invention aims to provide a traction first-aid stretcher for closed fractures of the extremities, which can realize a stretcher with richer and more flexible traction fixation functions, improve the safety and stability of first-aid transportation of patients with limb fractures, avoid secondary injuries to patients during transportation, and improve the applicable range and rescue effect of the limb fracture transportation stretcher.

[0005] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0006] A traction first-aid stretcher for closed fractures of the extremities includes a stretcher main body, binding straps, a traction mechanism, and two rotary folding mechanisms. Grooves are provided on both sides of the stretcher main body. One end of the rotary folding mechanism is arranged in the groove, and the other end is connected to the traction mechanism. The rotary folding mechanism can rotate along the groove and fold on one side of the stretcher main body; the traction mechanism is used for traction fixation of the fractured limb of the patient.

[0007] In this application, grooves are provided on both sides of the stretcher main body. A rotatable folding mechanism is arranged in the grooves, and the other end of the rotatable folding mechanism is connected to the traction mechanism. When in use, the rotatable folding mechanism is pulled out to the required length and rotated to the required angle to cooperate with the traction mechanism to complete the traction fixation of the fractured limbs of patients with closed fractures of the extremities, avoiding the problems that the range and angle of fixing the fractured limbs with cushions and straps are limited and ineffective fixation cannot be performed on patients with fractures at upper and large amplitudes. It realizes the effective fixation of the fractured limbs of patients with closed fractures of the extremities and maintains a stable state at the fracture site, facilitating the first aid and transportation of patients with closed fractures of the extremities.

[0008] Through the above technical solutions, further, the rotatable folding mechanism includes a first telescopic structure and a rotary lock. The rotary lock passes through the groove and is connected to the inner wall of the stretcher main body, and the first telescopic structure is rotatably arranged on the rotary lock.

[0009] Through the above technical solutions, further, the traction mechanism includes a main traction frame and an auxiliary traction frame. The main traction frame is connected to the first telescopic structure, and the auxiliary traction frame is connected to the main traction frame through a rotating sleeve.

[0010] Through the above technical solutions, further, a first connector and a third connector are slidably sleeved on the main traction frame, and the first connector is connected to the first connecting ring through a strap.

[0011] Through the above technical solutions, further, a second connector is slidably arranged on the auxiliary traction frame, and the third connector and the second connector are connected to the second connecting ring through an adjustable support structure.

[0012] Through the above technical solutions, further, the adjustable support structure includes a second telescopic structure and spherical hinge supports arranged at both ends of the second telescopic structure. The spherical hinge supports are respectively connected to the second connector and the third connector.

[0013] Through the above technical solutions, further, a second connecting rod cooperating with the spherical hinge support is arranged outside the second connector.

[0014] Through the above technical solutions, further, a third connecting rod cooperating with the spherical hinge support is arranged outside the third connector.

[0015] Through the above technical solutions, further, the second telescopic structure includes a second telescopic sleeve and a second sleeve rod. The end of the second sleeve rod has a spherical structure cooperating with the spherical hinge support.

[0016] The technical effects achieved by the present invention are as follows:

[0017] 1. The designed device includes a traction mechanism and two rotary folding mechanisms. Grooves are provided on both sides of the stretcher main body. One end of the rotary folding mechanism is arranged in the groove, and the other end is connected to the traction mechanism. The rotary folding mechanism can rotate along the groove and fold on one side of the stretcher main body. The traction mechanism is used for traction and fixation of the fractured limb of the patient, enabling a stretcher with richer and more flexible traction and fixation functions, enhancing the safety and stability of first aid transportation for patients with limb fractures, avoiding secondary injuries to the patient during transportation, and improving the applicable range and rescue effect of the limb fracture transfer stretcher.

[0018] 2. By designing that the rotary folding mechanism can rotate along the groove and fold on one side of the stretcher main body, the rotary folding mechanism includes a first telescopic structure and a rotary lock. When not in use, the rotary folding mechanism can be stored in the grooves at both ends of the stretcher. On the other hand, when in need of use, the telescopic rod is extended to the required length and rotated to the required traction angle, and cooperates with the traction of the traction mechanism to complete the traction and fixation of the fractured limb of the patient with closed limb fractures.

[0019] 3. By designing that the traction mechanism includes a main traction frame and an auxiliary traction frame, the main traction frame and the auxiliary traction frame cooperate to achieve stable fixation of the fractured limb of the fractured patient, realize simultaneous fixation and traction of the unilateral upper limb or lower limb, with flexible and rapid traction operation and stable state after locking. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is the overall structural schematic diagram of a first aid stretcher for traction of closed limb fractures in an embodiment of the present application;

[0021] Figure 2 is the enlarged structural schematic diagram of the connection structure between the rotary folding mechanism and the stretcher main body of a first aid stretcher for traction of closed limb fractures in an embodiment of the present application;

[0022] Figure 3 is the enlarged structural schematic diagram of the connection relationship between the stretcher main body and the rotary lock of a first aid stretcher for traction of closed limb fractures in an embodiment of the present application;

[0023] Figure 4 is the structural schematic diagram of the rotary lock of a first aid stretcher for traction of closed limb fractures in an embodiment of the present application;

[0024] Figure 5 is the overall structural schematic diagram of the stretcher main body of a first aid stretcher for traction of closed limb fractures in an embodiment of the present application;

[0025] Figure 6 is the connection structural schematic diagram of the rotary lock, the rotary folding mechanism and the traction mechanism of a first aid stretcher for traction of closed limb fractures in an embodiment of the present application;

[0026] Figure 7 Schematic diagram of the connection structure of the locking ring and the first telescopic rod of a first-aid stretcher for traction of closed fractures of the limbs in the embodiment of the present application;

[0027] Figure 8 Schematic diagram of the overall structure of the traction mechanism of a first-aid stretcher for traction of closed fractures of the limbs in the embodiment of the present application;

[0028] Figure 9 Schematic diagram of the connection structure of the second connector and the third connector of the traction mechanism of a first-aid stretcher for traction of closed fractures of the limbs in the embodiment of the present application;

[0029] Figure 10 Schematic diagram of the structure of the second connector of a first-aid stretcher for traction of closed fractures of the limbs in the embodiment of the present application;

[0030] Figure 11 Schematic diagram of the structure of the third connector of a first-aid stretcher for traction of closed fractures of the limbs in the embodiment of the present application;

[0031] Figure 12 Schematic diagram of the structure of the second connection ring of a first-aid stretcher for traction of closed fractures of the limbs in the embodiment of the present application;

[0032] Figure 13 Schematic diagram of the specific connection structure of the adjustable telescopic structure of a first-aid stretcher for traction of closed fractures of the limbs in the embodiment of the present application;

[0033] Figure 14 Schematic diagram of the structure of a first-aid stretcher for traction of closed fractures of the limbs in the embodiment of the present application when not in use;

[0034] Figure 15 Schematic diagram of the structure of a first-aid stretcher for traction of closed fractures of the limbs in the embodiment of the present application during actual application;

[0035] Figure 16 3D modeling diagram of a first-aid stretcher for traction of closed fractures of the limbs in the embodiment of the present application.

[0036] Markings in the figure: 1 - stretcher main body, 101 - groove, 102 - stretcher board, 103 - handrail, 104 - locking hole, 105 - notch, 106 - retaining platform, 2 - second telescopic structure, 201 - connecting ring, 202 - first telescopic sleeve, 203 - first sleeve rod, 204 - locking handwheel, 205 - first locking hole, 206 - damping ring, 301 - main traction frame, 302 - strap, 303 - first connector, 304 - first connecting ring, 305 - first locking handwheel, 306 - auxiliary traction frame, 307 - second connector, 3071 - second locking hole, 3072 - second strap connector, 3073 - second connecting rod, 308 - second telescopic rod, 3081 - second telescopic sleeve, 3082 - second sleeve rod, 3083 - fourth locking handwheel, 309 - second connecting ring, 3091 - second connecting rod, 3092 - second fixed lock, 310 - second locking handwheel, 311 - connecting sleeve, 312 - third connector, 313 - third locking handwheel, 314 - ball hinge support, 4 - rotary lock, 5 - binding strap, 6 - patient. Detailed implementation mode

[0037] The present invention will be described in detail below with reference to the accompanying drawings.

[0038] The present invention and its implementation modes have been described below. Such description is not restrictive, and the actual implementation modes are not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and design similar structural modes and embodiments without creative efforts without departing from the purpose of the present invention, they shall fall within the protection scope of the present invention.

[0039] For closed fractures, the soft tissue injury is relatively minor and the fracture heals relatively quickly. A closed fracture means that the integrity and continuity of the bone are interrupted, and the skin, fascia or periosteum at the fracture site is intact. Closed fractures are relatively common in the extremities and are usually caused by direct or indirect violence, mostly caused by traffic accidents, high-altitude falls, sports injuries, falls of the elderly and children, etc. When transporting patients with closed fractures of the extremities during first aid, a stretcher is needed, and some instruments are used to temporarily fix the fracture site to avoid aggravating the injury during transportation and relieve a certain degree of pain.

[0040] When first-aiding patients with closed fractures, it should be avoided that the fracture ends move during transportation and cause more damage to soft tissue blood vessels, nerves or internal organs; after the fracture is fixed, pain can be relieved, which is beneficial to preventing shock; it should be as convenient for transportation as possible. The stretcher is an important tool for transporting fracture patients and is mainly used to quickly and timely transport fracture patients. During transportation, the patient should be kept as stable as possible to prevent secondary injuries to fracture patients.

[0041] The inventors have found that the current transport stretchers for patients with fractures have the following main problems: (1) The fixation effect on the patient's limbs is limited, and the fractured limbs cannot be quickly fixed; (2) Most of them use straps or pads to temporarily restrain the fracture area, but the connection method between the straps and pads and the stretcher is unstable, and the fracture cannot be maintained in a stable state; (3) The range and angle of pads and straps for fixing fractured limbs are limited, and patients with fractures that are upward in angle and position and have large amplitudes cannot be effectively fixed; (4) The fixed straps or pads take up a lot of space and cannot be completely integrated with the stretcher, which is not conducive to rapid use and transportation.

[0042] Based on the above findings, the present application proposes a traction emergency stretcher for closed fractures of limbs. The present application proposes a traction emergency stretcher for closed fractures of limbs. The traction emergency stretcher is designed to connect a rotatable and foldable rotating and folding mechanism in the middle of the two sides of the stretcher body. The two ends of the traction emergency stretcher are respectively connected to the rotating and folding mechanisms on the two sides. The two sides of the stretcher body are provided with grooves. The rotating and folding mechanism can rotate along the grooves (101) and fold on one side of the stretcher body. The traction emergency stretcher is used to traction and fix the fractured limbs of the patient. The present application can store the rotating and folding mechanism in the grooves at the two ends of the stretcher body when not in use. When it is needed, the rotating and folding mechanism is stretched out of the groove structure to a required length, and then rotated to a required angle, and cooperates with the traction emergency stretcher to complete the traction and fixation of the fractured limbs of the patient with closed fractures of limbs, and maintain the fracture site in a stable state, so as to facilitate the emergency treatment and transportation of the patient with closed fractures of limbs. The existing stretcher has limited limb fixation effect, cannot achieve rapid fixation of the fractured limbs, has a limited range and angle of fixation of the fractured limbs, and cannot be integrated with the stretcher, which is not conducive to rapid use and transportation.

[0043] As attached Figures 1-15 As shown, a traction emergency stretcher for closed fractures of limbs in an embodiment of the present application includes a stretcher body 1, a traction mechanism, a binding belt 5 and two rotating and folding mechanisms. The binding belt 5 is used to fix the fracture patient on the stretcher body 1 to prevent the patient from slipping due to the shaking or tilting of the stretcher during transportation, thereby ensuring the safety of the patient during transportation and avoiding secondary injuries caused by accidental slipping. Grooves 101 are provided on both sides of the stretcher body, one end of the rotating and folding mechanism is provided in the groove 101, and the other end is connected to the traction mechanism. The rotating and folding mechanism can rotate along the groove 101 and fold on one side of the stretcher body 1; the traction mechanism is used to pull and fix the patient's fractured limbs.

[0044] In an embodiment of the present application, there is a first-aid stretcher for traction of closed fractures of the four limbs. When in use, the fractured patient is fixed to the stretcher main body through a binding strap, preventing the patient from slipping due to the shaking or tilting of the stretcher during transportation, ensuring the safety of the patient during transportation, and avoiding secondary injuries caused by accidental slipping; grooves are provided on both sides of the stretcher main body, one end of the rotary folding mechanism is arranged in the groove of the stretcher main body, and the other end of the rotary folding mechanism is connected to the traction mechanism. When in need of use, the rotary folding mechanism is pulled out from the groove to the required length and rotated to the required angle for traction of the fractured limb of the fractured patient, cooperating with the traction mechanism to complete the traction fixation of the fractured limb of the patient with closed fractures of the four limbs, avoiding the problems that the existing stretcher uses cushions and straps to fix the fractured limb with limited range and angle, and cannot effectively fix the patients with fractured angles and positions being upper and with large amplitudes, and the connection method of connecting the straps and cushions to the stretcher is unstable and cannot maintain a stable state for the fracture, realizing effective fixation of the fractured limb of the patient with closed fractures of the four limbs, and maintaining a stable state for the fracture site, facilitating the first aid and transportation of the patient with closed fractures of the four limbs; when not in use, the rotary folding mechanism is stored in the groove of the stretcher main body, and at this time, it can be used as a conventional stretcher without occupying too much space, avoiding the problems that the fixed straps or cushions occupy more space and cannot be well integrated with the stretcher, which is not conducive to rapid use and transportation.

[0045] Based on the above technical solution, the rotary folding mechanism includes a first telescopic structure 2 and a rotary lock 4. The rotary lock 4 passes through the groove 101 and is connected to the inner wall of the stretcher main body. The first telescopic structure 2 is rotatably arranged on the rotary lock 4. By designing the rotary folding mechanism to include the first telescopic structure 2 and the rotary lock 4, when the first telescopic structure is rotated to the required angle for traction of the fractured limb of the fractured patient, the position of the first telescopic structure is locked and fixed through the locking of the rotary lock 4, so that it remains at the required angle for traction of the fractured limb of the fractured patient, realizing the maintenance of a stable state for the fracture.

[0046] Based on the above technical solution, referring to the attached Figures 1-5 , the stretcher main body 1 includes a stretcher board 102 and armrests 103 arranged at the four corners of the stretcher board 102. The armrests 103 are used to provide stable support for the stretcher main body and help the user (such as medical staff) to maintain balance when transporting a patient with closed fractures of the four limbs; the grooves 101 are arranged at both ends of the stretcher board 102 and are used for storing the rotary folding mechanism; locking holes 104 are provided at the mid-axes on both sides of the stretcher board 102. Specifically, the rotary lock 4 passes through the locking holes 104, the first telescopic structure 2, and the connection holes 107 to lock and fix the rotary folding mechanism in the groove 101 of the stretcher main body.

[0047] In the embodiments of the present application, by designing locking holes at the mid-axes on both sides of the stretcher board of the stretcher main body, the rotary locking device passes through the locking holes to lock and connect the rotary folding mechanism in the groove on the stretcher board, so that the rotary folding mechanism can rotate and be fixed around the rotary locking device at the mid-axis of the stretcher board. On the one hand, when not in use, the rotary folding mechanism can be rotated and stored in the groove of the stretcher board, reducing the space occupied by a first-aid stretcher for traction of closed fractures of the extremities of the present application. On the other hand, it can be rotated and cooperated to rotate the traction mechanism to the required angle, and when rotated to the required angle, it is rotationally locked by the rotary locking device to complete the fixation of the traction position of the fractured limb of a patient with a closed fracture of the extremities, avoiding the problem that the range and angle of the fractured limb are limited by using cushions and straps, and patients with fractured angles and positions being upper and with large amplitudes cannot be effectively fixed.

[0048] In some embodiments, a plurality of groups of symmetrically arranged notches 105 are provided on the surface of the stretcher board 102 along the length direction. Each notch 105 is arranged close to the side of the stretcher board 102. The notches 105 are used to cooperate with the binding straps 5 to fix the body of a patient with a closed fracture of the extremities.

[0049] In the embodiments of the present application, by arranging a plurality of groups of notches 105 on the surface of the stretcher board along the length direction, when first-aiding and transporting a patient with a closed fracture of the extremities, the binding straps are fixed on the notches to fix the fractured patient on the stretcher main body, fixing the patient's body to prevent the patient from slipping or moving due to inertia or unexpected situations during the handling process, thereby ensuring the safety of the patient, ensuring the safety and comfort of the patient during the handling process, and avoiding secondary injuries caused by accidental slipping.

[0050] In some embodiments, a retaining platform 106 is provided at the end of the stretcher board 102. The retaining platform is used to provide additional support for the limbs of a patient with a closed fracture of the extremities, improve the posture and movement of the patient with a closed fracture of the extremities, enhance safety and comfort, reduce the risk of accidental injuries during the transportation of the patient with a closed fracture of the extremities, and help medical staff carry the patient more easily, reducing physical consumption and improving work efficiency.

[0051] It should be noted that in the embodiments of the present application, the material of the stretcher board can be made of aluminum alloy material. The aluminum alloy board has the characteristics of being light, high in strength, and corrosion-resistant. In some embodiments, the material of the stretcher board can also be made of plastic board. The plastic board has the characteristics of being light in weight, low in cost, and easy to clean, and is suitable for some light stretchers and is suitable for the first-aid transportation of patients with closed fractures of the extremities. The stretcher handrails in the present application can be made of the same material as the stretcher board. In addition, the materials of the stretcher board and the handrails can also be made of other material materials that can meet the first-aid transportation requirements of patients with closed fractures of the extremities, and will not be elaborated one by one here.

[0052] Based on the above technical solutions, with reference to the attached Figures 1-7 As shown in the figure, the rotary folding mechanism includes a first telescopic structure 2 and a rotary lock 4. The rotary lock 4 passes through the groove 101 and is connected to the inner wall of the stretcher main body. The first telescopic structure 2 is rotatably arranged on the rotary lock 4.

[0053] Specifically, the first telescopic structure 2 includes a connecting ring 201, a first telescopic sleeve 202, and a first sleeve rod 203. The first telescopic sleeve 202 and the first sleeve rod 203 are sleeved and connected. One end of the first telescopic sleeve 202 is connected to the connecting ring 201. The rotary lock passes through the locking hole 104 and the connecting ring 201 to lock and connect the first telescopic structure 2 in the groove 101 of the stretcher main body 1. A first locking hole 205 is provided on the telescopic sleeve 202, and a locking handwheel 204 is arranged in the first locking hole 205. The locking handwheel 204 is used to lock the telescopic length of the telescopic sleeve 202 and the telescopic rod 203.

[0054] In the embodiment of the present application, by designing the rotary folding mechanism including the first telescopic structure 2 and the rotary lock 4, the first telescopic structure 2 includes a connecting ring 201, a first telescopic sleeve 202, and a first sleeve rod 203. The first telescopic sleeve 202 and the first sleeve rod 203 are sleeved and connected. One end of the first telescopic sleeve 202 is connected to the connecting ring 201. The rotary lock passes through the locking hole 104 and the connecting ring 201 to lock and connect the first telescopic rod in the groove 101 of the stretcher main body 1. A locking hole 205 is provided on the first telescopic sleeve 202, and a locking handwheel 204 is arranged in the first locking hole 205. The first telescopic structure is locked and connected by the rotary lock passing through the locking hole 104 and the first locking ring 205, so that after the first telescopic structure rotates to the required angle, the rotary lock fixes the position of the rotary folding mechanism. The telescopic length of the first telescopic sleeve 202 and the first sleeve rod 203 is fixed by the locking of the locking handwheel, so that the first telescopic structure can be maintained at the required angle and position, ensuring the stable state of the stretcher.

[0055] With reference to the attached Figure 4 , the attached Figure 4 is a schematic structural diagram of the rotary lock of a first-aid stretcher for traction of closed fractures of the extremities in the embodiment of the present application. In the first-aid stretcher for traction of closed fractures of the extremities in the embodiment of the present application, when in use, when the first telescopic rod rotates to the required angle, the rotary lock 4 is tightened so that the rotary lock pushes inward. At the same time, the rotary lock 4 presses the locking ring 201 against the groove 101, so that the rotary lock fixes the position of the rotary folding mechanism, realizing the locking connection of the first telescopic structure by the rotary lock passing through the locking hole 104 and the locking ring 201, so that the first telescopic rod can be maintained at the required angle and position, ensuring the stable state of the stretcher.

[0056] In this application, by designing the rotary folding mechanism to include a first telescopic structure and a rotary lock, on the one hand, when not in use, the rotary folding mechanism can be stored in the grooves at both ends of the stretcher. On the other hand, when in need of use, the telescopic rod is extended to the required length and rotated to the required traction angle, and the locking ring and the locking handwheel are used to lock and fix the position and angle. Cooperating with the traction of the traction mechanism to complete the traction fixation of the fractured limb of a patient with a closed fracture of the extremities, ensuring that the closed fracture traction first aid stretcher of the extremities in this application maintains the correct posture and position during use, as well as the stability and safety during handling, improving the operation efficiency of the closed fracture traction first aid stretcher of the extremities in this application, and reducing the working time and manpower consumption.

[0057] In some embodiments, a damping ring 206 is further provided on the first sleeve rod 203. The damping ring 206 is sleeved on the upper end of the first sleeve rod 203. The damping ring 206 is used to increase the deformation extrusion friction force between the rotary folding mechanism and the groove 101, and can quickly fix and store the rotary folding mechanism.

[0058] In the embodiment of this application, by sleeving a damping ring on the upper end of the first sleeve rod, when the rotary folding mechanism of a closed fracture traction first aid stretcher of the extremities in this application is not in use and is stored in the groove of the stretcher board, the damping ring provided at the upper end of the telescopic rod contacts the groove. Due to the deformation extrusion friction force between the damping ring and the groove, the rotary folding mechanism is quickly fixed and stored, ensuring the stability of the fixation and storage of the rotary folding mechanism, and further improving the stability and safety of a closed fracture traction first aid stretcher of the extremities in this application.

[0059] It should be noted that the damping ring in the embodiment of this application can be made of rubber material. Rubber has good elasticity and damping performance. It can effectively absorb and disperse vibration energy, reducing the vibration amplitude of the system. And it has good corrosion resistance and wear resistance, and can quickly fix and store the rotary folding mechanism, ensuring the stability of the fixation and storage of the rotary folding mechanism. In addition, the material of the damping ring can also be made of other materials that can ensure the stability of the fixation and storage of the rotary folding mechanism, as long as the purpose of quickly fixing and storing the rotary folding mechanism can be achieved. Here, other materials that the damping ring can choose will not be elaborated one by one.

[0060] Based on the above technical solutions, referring to the attached Figures 1-11。The traction mechanism includes a main traction frame 301. Both ends of the main traction frame 301 are respectively connected to the first telescopic structure 2. The auxiliary traction frame 306 is connected to the main traction frame 301 through a rotating sleeve 311. A first connector 303 and a third connector 312 are slidably sleeved on the main traction frame 301. The first connector 303 is connected to the first connection ring 304 through a strap 302. The first connection ring 304 is used for traction fixation of the fractured limb of a patient with a closed fracture of the extremities.

[0061] It should be noted that in some embodiments, connection sleeves perpendicular to the main traction frame 301 are provided at both ends of the main traction frame 301. The first telescopic rod is connected to the main traction frame through the connection sleeve of the main traction frame. By extending the first telescopic rod to the required length and rotating it to the required traction angle, and cooperating with the traction of the main traction frame, the fractured limb of a patient with a closed fracture of the extremities is constrained and tractioned, ensuring effective restraint of the fractured part of the fractured patient during transportation, and ensuring that the four - limb closed - fracture traction first - aid stretcher in the present application maintains the correct posture and position during use. In addition, the main traction frame 301 in the present application can also be fixedly connected to the upper end of the first sleeve rod 203. As long as it can achieve the constraint and traction of the fractured limb of a patient with a closed fracture of the extremities and ensure effective restraint of the fractured part of the fractured patient during transportation, other specific connection methods of the main traction frame 301 and the first sleeve rod 203 will not be elaborated one by one here.

[0062] In the embodiment of the present application, by setting the traction mechanism to include a main traction frame, a first connector is slidably provided on the main traction frame, the lower end of the connector is connected with a strap, and the lower end of the strap is connected with a first connection ring. During use, by sliding the first connector to the required position for fixing the fractured limb of a patient with a closed fracture of the extremities and rotating it to the required angle, the fractured limb of the patient with a closed fracture of the extremities is constrained and fixed through the first connection ring at the lower end of the strap, realizing the local constraint and traction of the fractured limb of the fractured patient by connecting the strap with the fracture connection ring, ensuring effective restraint of the fractured part of the fractured patient during transportation, and improving the stability and safety of transporting the fractured patient by the four - limb closed - fracture traction first - aid stretcher of the present application.

[0063] In some embodiments, a first locking handwheel 305 is provided on the first connector 303. When the first connector 303 slides to the required position for fixing the fractured limb of a patient with a closed fracture of the extremities and rotates to the required angle, the first locking handwheel is used to lock the position of the first connector, realizing the fixation of the traction position and angle of the traction mechanism of the four - limb closed - fracture traction first - aid stretcher in the embodiment of the present application, ensuring the stable maintenance of the fixation of the fractured limb of the fractured patient, improving the comfort of the fractured patient, and improving the stability and safety of transporting the fractured patient.

[0064] It should be noted that in the embodiments of the present application, multiple first connectors 303 are provided. By slidably providing multiple first connectors on the main traction frame, on the one hand, it is possible to simultaneously fix multiple fractured limbs of a fracture patient. On the other hand, setting multiple fracture fixation rings can disperse the fixation pressure to multiple points, thereby reducing the pressure on a single fixation point, better fixing the fracture site, preventing the movement of the fracture ends, and thus improving the quality and speed of fracture healing, ensuring the traction and fixation effects of a first-aid stretcher for traction of closed fractures of the extremities according to the present application.

[0065] Based on the above technical solution, a second connector 307 is slidably provided on the auxiliary traction frame 306, and the third connector 312 and the second connector 307 are connected to the second connection ring 309 through an adjustable support structure. By connecting the third connector 312 and the second connector 307 to the second connection ring 309 through an adjustable support structure, a rigid traction for the fractured limb of the fracture patient can be established. After adjusting the angular position, a stable fixation can be established through the cooperation of the auxiliary traction frame and the main traction frame, and the upper or lower limb on one side can be simultaneously fixed and tractioned. The traction operation is flexible and fast, the state is stable after locking, and the fractured limb can be quickly fixed to ensure the stable state maintenance of the fracture.

[0066] In some embodiments, the auxiliary traction frame 306 has a "U" - shaped structure. The two ends of the auxiliary traction frame 306 are respectively connected to the connecting sleeves 311. The second connector 307 is slidably provided on the auxiliary traction frame 306. The third connector 312 and the second connector 307 are connected to the second connection ring 309 through an adjustable support structure. The adjustable support structure is used to connect the second connection ring, the second connector, and the third connector to fix the fractured limb of the fracture patient.

[0067] In some embodiments, a third locking handwheel 313 is provided on the third connector 312. When the third connector 312 slides to the required position for fixing the fractured limb of a patient with a closed fracture of the extremities and rotates to the required angle, the third connector 312 is locked by the third locking handwheel provided on the third connector 312, realizing the fixation of the traction position and angle of the traction mechanism of a first-aid stretcher for traction of closed fractures of the extremities in the embodiments of the present application, ensuring the stable state maintenance of the fixation of the fractured limb of the fracture patient, improving the comfort of the fracture patient, and improving the stability and safety of transporting the fracture patient.

[0068] In the embodiment of the present application, three adjustable support structures are connected to the second connection ring 309. Two of the adjustable support structures are connected to the second connector 307, and the other adjustable support structure is connected to the third connector 312. When the main traction frame can no longer meet the requirements in the case of a large fracture angle, a large limb extension angle and height, the adjustable support structures provided on the second connection ring connect the second connection ring to the first connector and the third connector to fix the fractured limb of the fracture patient. Through the third connector on the main traction frame cooperating with the second connector on the auxiliary traction frame, and being connected through the first connector, the third connector, the adjustable support structure and the second connection ring, a rigid traction for the fractured limb of the fracture patient is established. After adjusting the angle position, a stable fixation is established through the cooperation of the auxiliary traction frame and the main traction frame, and the unilateral upper limb or lower limb can be fixed and tractioned simultaneously. The traction operation is flexible and fast, the state is stable after locking, and the fractured limb can be quickly fixed to ensure the stable state maintenance of the fracture.

[0069] Referring to the attached drawings, the adjustable support structure includes a second telescopic structure 308 and ball hinge supports 314 provided at both ends of the second telescopic structure 308. The ball hinge supports 314 are respectively connected to the second connector 307 and the third connector 312.

[0070] In the embodiment of the present application, by designing the adjustable support structure to include a second telescopic structure 308, ball hinge supports 314 are provided at both ends of the second telescopic structure 308, and the ball hinge supports 314 are respectively connected to the second connector 307 and the third connector 312. Specifically, in some embodiments, three adjustable support structures are connected to the second connection ring 309. Two of the adjustable support structures are connected to the second connector 307 through the ball hinge supports 314 provided thereon, and the other adjustable support structure is connected to the third connector 312 through the ball hinge supports 314 provided thereon. It can be realized that by setting three adjustable support structures, and the three adjustable support structures with three different angles and three different lengths establish a stable fixation with the main traction frame and the auxiliary traction frame, so as to realize the simultaneous fixation and traction of the unilateral upper limb or lower limb. The traction operation is flexible and fast, and the state is stable after locking.

[0071] Specifically, referring to the attached Figures 9-11 ,, a second connecting rod 3073 that cooperates with the ball hinge support 314 is provided outside the second connector 307, and a third connecting rod 3012 that cooperates with the ball hinge support 314 is provided outside the third connector 312.

[0072] Specifically, a second locking hole 3071 is provided on the second connector 307, and a second locking handwheel 310 is arranged in the second locking hole 3071. When the second connector slides to the required position for fixing the fractured limb of a patient with a closed fracture of the extremities and rotates to the required angle, the second connector is locked by the second locking handwheel provided on the second locking hole, so as to fix the traction position and angle of the traction mechanism of a first-aid stretcher for closed fractures of the extremities in the embodiment of the present application, ensure the stable state maintenance of the fixation of the fractured limb of the fracture patient, improve the comfort of the fracture patient, and improve the stability and safety of transporting the fracture patient.

[0073] In some embodiments, a second connecting rod 3073 is provided on the second connector 307. The outer end of the second connecting rod 3073 is spherical. The second connecting rod 3073 is used to connect with the spherical hinge support 314 to establish a spherical hinge connection relationship between the second connector 307 and the second connecting ring 309, so as to realize the stable fixation of the fractured limb of the patient by the main traction frame and the auxiliary traction frame in the case of a large fracture angle, a large extension angle and height of the patient's limb. A third connecting rod 3123 is provided on the third connector 312. The outer end of the third connecting rod 3123 is spherical. The third connecting rod 3123 is used to connect with the spherical hinge support 314 to establish a spherical hinge connection relationship between the third connector 312 and the second connecting ring 309, so as to realize the stable fixation of the fractured limb of the patient by the main traction frame and the auxiliary traction frame in the case of a large fracture angle, a large extension angle and height of the patient's limb.

[0074] In some embodiments, a second fixing buckle 3092 and a plurality of second connecting rods 3091 are provided on the second connecting ring 309. The second connecting rods 3091 are used to connect the second connecting ring 309 with the spherical hinge support 314 of the second telescopic rod, ensuring the stability and consistency between the second connecting ring 309 and the second telescopic rod, thereby improving the overall effect of fracture fixation of the stretcher of the present application. The port of the second connecting ring 309 is an open structure. The second connecting ring 309 is used for the restraint fixation of the fractured limb of a patient with a closed fracture of the extremities. During use, the fractured limb of the fracture patient is placed into the first connecting ring through the opening of the port of the connecting ring 304 and is restrained and fixed.

[0075] It should be noted that the material of the second connecting ring in this application can be made of elastic rubber or a strap. The port of the second connecting ring can be provided with Velcro, and the Velcro is used to adjust the diameter and lock the second connecting ring 309, so that the tightness of the second connecting ring can be adjusted according to the specific situation of the limb of the fracture patient, ensuring that the second connecting ring exerts appropriate fixing pressure on the fracture site, neither being too tight to cause poor blood circulation nor being too loose to result in poor fixing effect, which helps to ensure the stability of the fracture site and promote the healing of the fracture, not only improving work efficiency but also reducing the pain and discomfort of the patient.

[0076] In some embodiments, the second connector 307 can also be provided with a second strap connector 3072. By connecting and clamping the strap in the second strap connector 3072 and connecting the strap to the second connecting ring, it can be used for the traction fixation of the fractured limb of a patient with a closed fracture of the extremities, realizing the restraint traction of the fractured limb of a patient with a closed fracture of the extremities, and ensuring that the correct posture and position are maintained during the use of the first-aid stretcher for traction of closed fractures of the extremities in this application.

[0077] It should be noted that in the embodiments of this application, the overall structure of the first connector can be the same as that of the second connector. The difference is that due to the different diameters of the main traction frame and the auxiliary traction frame and the different requirements for traction, there are some differences in the size and length settings of the first connector and the second connector. In this application, the specific dimensions and materials of the first connector and the second connector can be selected and set according to the actual use needs and clinical requirements of a first-aid stretcher for traction of closed fractures of the extremities in this application. The specific selection of materials and dimensions will not be elaborated here one by one.

[0078] It should be noted that in the embodiments of this application, ball joints 314 are connected to both the upper end and the lower end of the second telescopic rod. Installation holes are provided at both ends of the ball joint 314. The ball joint 314 at the upper end of the second telescopic rod is connected to the second connecting rod 3073 of the second connector 307 and is also connected to the third connecting rod 3123 of the third connector 312; the second telescopic structure 308 includes a second telescopic sleeve 3081 and a second sleeve rod 3082. The second telescopic sleeve 3081 and the second sleeve rod 3082 are sleeved and connected. The end of the second sleeve rod 3082 is a spherical structure, and the end of the second sleeve rod 3082 is installed in the installation hole of the ball joint 314. Through the connection of the ball joint 314 with the second connector and the third connector, the ball joint connection of the second connector, the third connector, the adjustable support and the second connecting ring can be realized, so that a stable connection between the main traction frame, the auxiliary traction frame and the connecting ring of the traction mechanism can be established through telescopic rods with different angles and lengths.

[0079] In the embodiments of the present application, by designing an adjustable support structure including a second telescopic rod, ball hinge supports are arranged at both ends of the second telescopic rod, and the ball hinge supports are respectively connected to a second connector and a third connector, so as to realize the stable connection between the main traction frame, the auxiliary traction frame and the second connection ring of the traction mechanism through the second telescopic rod with different angles and lengths in cooperation with the second connector, the third connector and the second connection ring, thereby realizing the stable fixation of the fractured limb of a fracture patient. Moreover, the arrangement of multiple connectors can realize the simultaneous fixed traction of the upper limb or lower limb on one side of a fracture patient, and the traction operation is flexible and fast, and the state is stable after locking.

[0080] In some embodiments, a fourth locking handwheel 3083 is provided on the second sleeve rod 3082. The second telescopic sleeve 3081 and the second sleeve rod 3082 are sleeved and connected. The length of the second telescopic structure is fixed by the fourth locking handwheel 3083, so as to fix the traction position and angle of the traction mechanism of a first-aid stretcher for traction of closed fractures of limbs in the embodiments of the present application, and ensure the stable maintenance of the fixation of the fractured limb of a fracture patient.

[0081] It should be noted that the materials of the first locking handwheel, the second locking handwheel and the third locking handwheel in the embodiments of the present application can be made of stainless steel. Stainless steel has the characteristics of corrosion resistance, high strength, easy cleaning, etc. for material and texture treatment, making it more convenient to use. In addition, the locking handwheel can also be made of plastic material. The locking handwheel made of plastic material has the characteristics of light weight, low cost, easy molding, etc. In addition, the locking handwheel can also adopt a spiral structure to make it more convenient to use. The materials and textures of the locking handwheel in the present application can also adopt other materials and textures that are convenient for processing and use, as long as they are convenient to use and practical, and will not be elaborated here one by one.

[0082] Both the main traction frame and the auxiliary traction frame in the embodiments of the present application can be made of nylon materials, engineering plastics, aluminum alloys and other lightweight materials with durable materials and light weights, so as to improve the practicability of a first-aid stretcher for traction of closed fractures of limbs in the present application, and have the advantages of light weight, strength and durability, corrosion resistance, cost effectiveness and design flexibility, and are suitable for various emergency rescue and medical transportation scenarios.

[0083] It should be noted that the ball hinge supports in the embodiments of the present application can be made of hard plastic or aluminum alloy. The second and third connectors, the adjustable support structure and the second connection ring of the present application are connected and fixed through the ball hinge supports made of hard plastic or aluminum alloy. The hard plastic or aluminum alloy materials have good practicability and durability, and save costs and can ensure the traction effect on the fractured limb of a fracture patient.

[0084] As shown in the attached Figure 14 - attached Figure 16As shown in the figure, an emergency stretcher for traction of closed fractures of the extremities in an embodiment of the present application is applied in the emergency transfer of fracture patients, and its working principle is as follows:

[0085] First, when using the emergency stretcher for traction of closed fractures of the extremities of the present application, place the fracture patient 6 on the stretcher main body 1 of the emergency stretcher for traction of closed fractures of the extremities of the present application.

[0086] Then, pull out the rotary folding mechanism from the groove 101 of the stretcher main body and rotate it to the required angle, and adjust the first telescopic structure 2 to extend to the required traction height, and use the rotary lock 4 and the lock handwheel 204 to lock and fix the angle and height of the rotary folding mechanism.

[0087] Next, through the main traction frame 301 of the traction mechanism, adjust the first connector 303 on the main traction frame 301 to the required position and angle, and use the first connecting ring 304 connected to the lower end of the first connector 303 to restrain and traction the fractured limb of the patient with closed fractures of the extremities. After adjusting the position and angle of the traction and fixation of the fractured limb of the fracture patient, lock the position and angle of the first connector 303 through the first lock handwheel 305 to ensure the stable state maintenance of the fracture patient.

[0088] Finally, if the fracture angle of the fracture patient is large, the extension angle and height of the limb are large, and the main traction frame can no longer meet the requirements, connect the second connecting ring 309 to the second connector 307 and connect the second connecting ring 309 to the third connector 312 through the adjustable telescopic structure provided on the second connecting ring 309 to fix the fractured limb of the fracture patient. Thus, through the third connector on the main traction frame cooperating with the second connector on the auxiliary traction frame, a connection is established through the adjustable telescopic structure and the second connecting ring connected by the second and third connectors to establish a rigid traction for the fractured limb of the fracture patient. After adjusting the angle position, a stable fixation is established through the cooperation of the auxiliary traction frame and the main traction frame, and the upper or lower limb on one side can be fixed and tractioned simultaneously. The traction operation is flexible and fast, the state is stable after locking, and the fractured limb can be quickly fixed to ensure the stable state maintenance of the fracture.

[0089] In the embodiments of the present application, a first-aid stretcher for traction of closed fractures of the extremities is provided, which includes a stretcher body, a rotary folding mechanism, and a traction mechanism. The rotary folding mechanism can be telescoped in the groove structure of the stretcher body. When not in use, the rotary folding mechanism is received into the groove structures at both ends of the stretcher body. When in need of use, the rotary folding mechanism is pulled out from the groove to the required length, and then rotated to the required angle, and cooperates with the traction mechanism to complete the traction fixation of the fractured limbs of patients with closed fractures of the extremities, and maintain a stable state of the fracture site, facilitating the first aid and transportation of patients with closed fractures of the extremities, avoiding the problems of limited limb fixation effect of the existing stretcher, inability to quickly fix the fractured limbs, limited range and angle of fixation of the fractured limbs, and inability to be perfectly integrated with the stretcher, which is not conducive to rapid use and transportation; and the traction mechanism includes a main traction frame and an auxiliary traction frame. Through the cooperation of the first connector on the main traction frame, the second connector of the auxiliary traction frame, the adjustable telescopic structure, and the second connection ring, a stable connection can be established between the main traction frame, the auxiliary traction frame, and the connection ring of the traction mechanism through telescopic rods at different angles and lengths, so as to achieve stable fixation of the fractured limbs of the fractured patients, and the setting of multiple connectors can realize simultaneous fixed traction of the upper or lower limbs on one side of the fractured patients, with flexible and rapid traction operation and stable state after locking.

[0090] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and all these changes and improvements fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A traction emergency stretcher for closed fractures of limbs, comprising a stretcher body (1) and a binding belt (5), characterized in that: It also comprises a traction mechanism and two rotating and folding mechanisms. Grooves (101) are arranged on both sides of the stretcher body (1). One end of the rotating and folding mechanism is arranged in the groove (101), and the other end is connected to the traction mechanism. The rotating and folding mechanism can rotate along the groove (101) and fold on one side of the stretcher body (1); the traction mechanism is used to traction and fix the fractured limbs of the patient.

2. A traction emergency stretcher for closed fractures of limbs as claimed in claim 2, characterized in that: The rotating folding mechanism comprises a first telescopic structure (2) and a rotating locker (4); the rotating locker (4) passes through a groove (101) and is connected to the inner wall of the stretcher body (1); and the first telescopic structure (2) is rotatably arranged on the rotating locker (4).

3. A traction emergency stretcher for closed fractures of limbs as claimed in claim 2, characterized in that: The traction mechanism comprises a main traction frame (301) and an auxiliary traction frame (306); the main traction frame (301) is connected to the first telescopic structure (2); and the auxiliary traction frame (306) is connected to the main traction frame (301) via a rotating sleeve (311).

4. A traction emergency stretcher for closed fractures of limbs as claimed in claim 3, characterized in that: A first connector (303) and a third connector (312) are provided on the sliding sleeve of the main traction frame (301), and the first connector (303) is connected to the first connecting ring (304) via a strap (302).

5. A traction emergency stretcher for closed fractures of limbs as claimed in claim 4, characterized in that: A second connector (307) is slidably disposed on the auxiliary traction frame (306), and the third connector (312) and the second connector (307) are connected to the second connection ring (309) via an adjustable supporting structure.

6. A traction emergency stretcher for closed fractures of limbs as claimed in claim 5, characterized in that: The adjustable support structure comprises a second telescopic structure (308) and ball joint supports (314) arranged at both ends of the second telescopic structure (308), and the ball joint supports (314) are respectively connected to the second connector (307) and the third connector (312).

7. A traction emergency stretcher for closed fractures of limbs as claimed in claim 6, characterized in that: A second connecting rod (3073) that cooperates with the ball joint support (314) is arranged on the outside of the second connector (307).

8. A traction emergency stretcher for closed fractures of limbs as claimed in claim 6, characterized in that: A third connecting rod (3012) that cooperates with the ball joint support (314) is arranged on the outside of the third connector (312).

9. A traction emergency stretcher for closed fractures of limbs as claimed in claim 7, characterized in that: The second telescopic structure (3) comprises a second telescopic sleeve (3081) and a second set of rods (3082), and the end of the second set of rods (3082) has a spherical structure that cooperates with the ball joint support (314).

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