Pelvic fracture fixation device

Abstract

The present invention discloses a pelvic fracture fixation device, which relates to the field of medical device technology and includes: two symmetrically arranged fixed structures, each including a fixing frame, a first airbag, and a pressure regulating assembly, the first airbag being fixed to the fixing frame, the first airbags in the two fixed structures being arranged relative to each other, the pressure regulating assembly having an output end, the output end of the pressure regulating assembly being connected to the first airbag; two symmetrically arranged connecting structures between the two fixed structures, the two connecting structures being located at the two ends of the two fixed structures, the connecting structures including a connecting rope and a reeling assembly, the reeling assembly being arranged on the fixing frame of one of the fixed structures, the reeling assembly having an output end, one end of the connecting rope being connected to the output end of the reeling assembly, and the other end of the connecting rope being connected to the fixing frame of the other fixed structure. The advantage of the present invention is that it can adapt to the pelvic morphology of different patients, while providing a more secure fixation and avoiding problems such as displacement.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a pelvic fracture fixation device. Background Art

[0002] Pelvic fractures, as a serious condition in trauma surgery, are usually caused by high-energy external force impacts. This impact force often comes from accidents such as traffic accidents, falls from heights, and being hit by heavy objects. Since the pelvis is an important load-bearing structure of the human body, once it is damaged, it often poses a threat to the patient's life safety. The traumatic nature of pelvic fractures is extremely serious. Since the pelvis is a bridge connecting the torso and lower limbs, it not only bears the weight of the upper body, but is also responsible for transmitting the force of the lower limbs. Therefore, when the pelvis is subjected to strong external force impacts, its structure is easily damaged, leading to fractures. As an important structure connecting the human torso and lower limbs, the pelvis plays a vital role in human body mechanics. However, as a serious trauma, the high incidence and harmfulness of pelvic fractures cannot be ignored.

[0003] During the treatment of pelvic injuries, the choice of external fixation method is crucial for the patient's recovery. At present, the commonly used fixation methods in clinical practice are pelvic belts or fixators made of hard materials such as plaster. The pelvic belt is a triangular bandage that is used to tie the patient's pelvis to fix it. However, this method is generally used for emergency fixation and can only be used temporarily. It is not often used during the treatment and rehabilitation training of later patients because of its poor fixation effect. At present, during the treatment and rehabilitation training of later patients, the patient's pelvis is fixed with a fixator made of hard materials such as plaster. Although it can achieve pelvic fixation to a certain extent compared to the pelvic belt, these methods cannot accurately adapt to the patient's pelvic shape, and often have problems such as insufficient fixation and easy displacement. This unstable fixation method not only affects the patient's treatment effect, but may also increase the patient's pain and medical costs. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a pelvic fracture fixation device that can adapt to the pelvic morphology of different patients, fix more firmly, and avoid problems such as displacement.

[0005] The present invention provides a pelvic fracture fixation device, comprising:

[0006] Two groups of fixed structures are symmetrically arranged, and the fixed structures include a fixing frame, a first airbag and a pressure regulating component. The fixing frame serves as a support for the entire fixed structure. The first airbag is fixed on the fixing frame. The first airbags in the two groups of fixed structures are arranged opposite to each other. When in use, the two groups of fixed structures are respectively located on the front and back sides of the pelvis. The first airbags in the two groups of fixed structures are arranged opposite to each other. The first airbags in the two groups of fixed structures are in contact with the patient's pelvic fracture. The pressure regulating component has an output end, and the output end of the pressure regulating component is connected to the first airbag. The pressure regulating component is used to adjust the air pressure of the first airbag.

[0007] Two groups of connecting structures are symmetrically arranged between the two groups of fixed structures, and the two groups of connecting structures are respectively located at the two ends of the two groups of fixed structures. The connecting structure includes a connecting rope and a winding assembly. The winding assembly is arranged on a fixed frame in one group of the fixed structures. The winding assembly has an output end, one end of the connecting rope is connected to the output end of the winding assembly, and the other end of the connecting rope is connected to the fixed frame in the other group of fixed structures. The winding assembly is used to wind up the connecting rope and change the length of the connecting rope extended.

[0008] Preferably, the first air bag is provided with a first air outlet and a first air inlet, both of which are provided with valves, and the pressure regulating assembly includes:

[0009] The pressure sensor is arranged on one side of the first airbag. The pressure sensor can detect the pressure of the first airbag in contact with the patient's body to avoid excessive pressure causing damage to the patient's body, and also avoid excessive pressure causing poor fixation or affecting the patient's treatment effect.

[0010] An air pump, an output end of which is connected to the first air inlet of the first airbag, and the air pump can inflate air into the first airbag.

[0011] A controller is electrically connected to the air pump and the pressure sensor.

[0012] Preferably, a plurality of second airbags are provided between the first airbag and the fixing frame, and the plurality of second airbags are arranged on one side of the first airbag. A second air outlet and a second air inlet are provided on the second airbag, and the output end of the air pump is connected to the second air inlet of the second airbag. By providing a plurality of second airbags, the inflation and deflation of the plurality of second airbags can be adjusted to adapt to the pelvic morphology of different patients, thereby achieving a better fixation effect.

[0013] Preferably, the first airbag is arc-shaped to better adapt to the patient's pelvic shape, and further comprises: a support plate, arranged in the first airbag, the support plate being located on a side close to the second airbag, the support plate being provided with a plurality of support members, the plurality of support members being arranged in a straight line on the support plate, the support members comprising:

[0014] An electric telescopic rod is arranged on the support plate, the electric telescopic rod is perpendicular to the support plate, and the electric telescopic rod is electrically connected to the controller.

[0015] The arc plate is arranged at one end of the electric telescopic rod away from the support plate, the arc plate abuts against the inner wall of the first airbag, and the curvature of the arc plate matches the curvature of the first airbag.

[0016] Preferably, the fixing frame comprises:

[0017] The two first support rods are vertically arranged and spaced a certain distance apart from each other. The two first support rods are symmetrical to each other. The connecting rope and the winding assembly are arranged on the first support rods.

[0018] A plurality of second support rods are arranged in a grid pattern between two of the first support rods, and a plurality of the second airbags are arranged on the plurality of second support rods.

[0019] Preferably, the first support rod and the second support rod are made of elastic-plastic material, and the first support rod and the second support rod can be deformed to a certain extent.

[0020] Preferably, a plurality of connecting holes are respectively provided on the two first support rods in the fixing frame, and the plurality of connecting holes are opened in a straight line along the length direction of the first support rod, and two adjacent connecting holes are spaced a certain distance apart, and the connecting holes pass through the first support rod horizontally, one end of the connecting rope is fixed to the side wall of one of the first support rods of the fixing frame, and the other end of the connecting rope is connected to the output end of the winding assembly, and the connecting rope is staggered through the plurality of connecting holes on the first support rods of the two fixing frames, so that the two support rods are completely connected together from top to bottom, and the fixing effect is better.

[0021] Preferably, the winding assembly comprises:

[0022] The shell is arranged on the first support rod, and a through hole is opened on the side wall of the shell.

[0023] A driving member is arranged in the housing, has an output end, and is electrically connected to the controller.

[0024] A rotating drum is arranged at the output end of the driving member, and the driving member is used to drive the rotating drum to rotate. One end of the connecting rope is fixed to the side wall of the rotating drum, and the connecting rope passes through the through hole and is wrapped around the circumference of the rotating drum. According to the rotation direction of the rotating drum, the connecting rope is wrapped or unwound on the rotating drum, thereby changing the extended length of the connecting rope.

[0025] Compared with the prior art, the present invention discloses a pelvic fracture fixation device, which has the following beneficial effects:

[0026] First, the device is equipped with two sets of fixed structures to fix the two sides of the patient's pelvis during use. By setting up the first airbag, it can adapt to the pelvic shape of different patients. At the same time, the pressure regulating component can adjust the air pressure of the first airbag, and the tightness of the fixation can be adjusted according to the patient's actual situation, ensuring that the patient is in the optimal treatment state. At the same time, the fixation is more secure and avoids problems such as displacement. Secondly, the device also has a connecting structure between the two sets of fixed structures. The connecting structure adopts an adjustable method, that is, the tightness between the two sets of fixed structures can be adjusted. The tightness of the fixation can be further adjusted according to the situation of different patients, while also providing a more secure fixation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 It is a structural schematic diagram of the present invention.

[0029] Figure 2 Schematic diagram of the structure of the first airbag of the present invention.

[0030] Figure 3 Schematic diagram of the structure of the fixing frame of the present invention.

[0031] Figure 4 Schematic diagram of the connection structure of the present invention.

[0032] Figure 5 It is a structural schematic diagram of the winding assembly of the present invention.

[0033] The meaning of each number in the figure is: 1—fixed structure, 2—connecting structure, 3—support plate, 11—fixed frame, 12—first airbag, 13—second airbag, 111—first support rod, 112—second support rod, 113—connecting hole, 21—connecting rope, 22—winding assembly, 221—housing, 222—driving member, 223—rotating drum, 224—through hole, 31—electric telescopic rod, 32—arc plate. DETAILED DESCRIPTION

[0034] A specific embodiment of the present invention is described in detail below with reference to the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiment.

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the technical solution of 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 cannot be understood as limiting the present invention.

[0036] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the term "connection" should be understood broadly. For example, it can mean a fixed connection, a detachable connection, or an integral connection. It can mean a mechanical connection or an electrical connection. It can mean a direct connection or an indirect connection through an intermediate medium, or it can mean internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0037] Additionally, in the description of the present invention, "plurality" refers to two or more than two. The terms "first" and "second" are used for descriptive purposes only and should not be understood to imply or suggest relative importance or implicitly indicate the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more of the features.

[0038] Example 1

[0039] The embodiment of the present invention provides a pelvic fracture fixation device such as Figure 1As shown, it includes: a fixing structure 1 and a connecting structure 2. The two sets of fixing structures 1 are symmetrically arranged. The fixing structure 1 includes a fixing frame 11, a first airbag 12 and a pressure regulating assembly. The fixing frame 11 serves as a support for the entire fixing structure 1. The first airbag 12 is fixed to the fixing frame 11. The first airbag 12 serves as a structure that plays a major fixing role, and the fixing frame 11 serves as a support for the first airbag 12. The fixing frame 11 combined with the first airbag 12 can achieve simple fixation of the patient's pelvic fracture. When in use, the two sets of fixing structures 1 are respectively located on the front and back sides of the pelvis. The first airbags 12 in the two sets of fixing structures 1 are arranged opposite to each other and contact the patient's pelvic fracture. The pressure regulating assembly has an output end, and the output end of the pressure regulating assembly is connected to the first airbag 12. The pressure regulating assembly is used to adjust the air pressure of the first airbag 12. The degree of fixation can be adjusted according to the different conditions of different patients to ensure that the patient is in the best treatment state. The two groups of connecting structures 2 are symmetrically arranged between the two groups of fixed structures 1. The two groups of connecting structures 2 are used to adjust the distance between the two groups of fixed structures 1. The two groups of connecting structures 2 are respectively located at the two ends of the two groups of fixed structures 1. The connecting structure 2 includes a connecting rope 21 and a winding assembly 22. The winding assembly 22 is arranged on the fixed frame 11 in one group of fixed structures 1. The winding assembly 22 has an output end. One end of the connecting rope 21 is connected to the output end of the winding assembly 22, and the other end of the connecting rope 21 is connected to the fixed frame 11 in the other group of fixed structures 1. The winding assembly 22 is used to wind up the connecting rope 21 and change the length of the connecting rope 21 extended. When in use, the device utilizes two sets of fixing structures 1 to secure the patient's pelvis on both sides. The first airbags 12 in the two sets of fixing structures 1 are in contact with the patient's body. The air pressure in the first airbags 12 can be adjusted by a pressure regulating assembly, thereby adjusting the degree of fixation according to the patient's specific conditions, ensuring the patient is in the optimal treatment state. Furthermore, the first airbags 12 can adapt to the pelvic morphology of different patients. Furthermore, two sets of connecting structures 2 are provided between the two sets of fixing structures 1. This facilitates wearing the device to the patient's pelvic fracture site. Furthermore, the connecting structures 2 can adjust the distance between the two sets of fixing structures 1, further adjusting the degree of fixation of the two sets of fixing structures 1, thereby adjusting the tightness of the fixation according to the patient's condition and providing a more secure fixation. Furthermore, a temperature sensor can be provided on the side of the first airbag 12 in contact with the patient's body to monitor the patient's body temperature and thus monitor the patient's vital signs, allowing for timely detection of changes in the patient's condition. This device not only adapts to the pelvic morphology of different patients, adjusting the tightness of the fixation according to the patient's condition, but also provides a more secure fixation.

[0040] Furthermore, the first airbag 12 is provided with a first air outlet and a first air inlet, and both the first air outlet and the first air inlet are provided with valves, which may be solenoid valves, that can control the opening and closing of the first air outlet and the first air inlet. The pressure regulating assembly includes: a pressure sensor, an air pump, and a controller. The pressure sensor is provided on one side of the first airbag 12. The pressure sensor can detect the pressure of the first airbag 12 in contact with the patient's body to avoid excessive pressure causing damage to the patient's body, and also to avoid insufficient pressure causing loose fixation or affecting the patient's treatment effect. The output end of the air pump is connected to the first air inlet of the first airbag 12, and the air pump can inflate the first airbag 12. The controller is electrically connected to the air pump, the valves on the first air outlet and the first air inlet, and the pressure sensor. The controller in this embodiment has an air pressure threshold that can be adjusted based on the patient's condition. A pressure sensor monitors the contact pressure between the first airbag 12 and the patient's body in real time. When the air pressure exceeds the threshold, the controller controls the valve of the first air outlet to open to release pressure or adjust the distance between the two sets of fixed structures 1. When the air pressure is below the threshold, the controller controls the air pump to open to inflate the first airbag 12 or adjust the distance between the two sets of fixed structures 1. This ensures a secure fixation while also allowing the degree of fixation to be adjusted based on the patient's condition. To meet medical testing requirements, a timer can also be provided to measure the duration after the air pressure reaches a predetermined value.

[0041] Example 2

[0042] As a further improvement on Example 1, to further adapt to the patient's pelvic morphology and achieve better fixation, multiple second airbags 13 are further provided between the first airbag 12 and the fixing frame 11. The multiple second airbags 13 are arranged on one side of the first airbag 12, away from the side that contacts the patient's pelvis. The second airbags 13 are provided with a second air outlet and a second air inlet, and the output end of the air pump is connected to the second air inlet of the second airbag 13. By providing multiple second airbags 13, this embodiment can, on the one hand, adapt to different patients' pelvic morphologies by adjusting the inflation and deflation of the multiple second airbags 13, achieving better fixation. On the other hand, it can also enhance the fixation effect of the entire device and prevent displacement.

[0043] To further adapt to the patient's pelvic morphology, such as Figure 2As shown, further, the first airbag 12 is arc-shaped, which can better adapt to the patient's pelvic shape, and also includes: a support plate 3 arranged in the first airbag 12, the support plate 3 is a plastic plate with elastic-plastic properties, which can be deformed to a certain extent and can be adaptively deformed according to the pelvic shape of different patients, the support plate 3 is located on the side close to the second airbag 13, and a plurality of support members are provided on the support plate 3, and the plurality of support members are arranged in a straight line on the support plate 3, and the support members include: an electric telescopic rod 31 and an arc-shaped plate 32. The electric telescopic rod 31 is arranged on the support plate 3, and the electric telescopic rod 31 is perpendicular to the support plate 3. When in use, the electric telescopic rod 31 is horizontal, and the electric telescopic rod 31 is electrically connected to the controller, and the controller can control the extension and retraction of the electric telescopic rod 31. The electric telescopic rod 31 can be replaced with a structure with a telescopic function such as an electric push rod, an electric cylinder, or a hydraulic rod. The curved plate 32 is provided at one end of the electric telescopic rod 31 away from the support plate 3 . The curved plate 32 abuts against the inner wall of the first airbag 12 , and the curvature of the curved plate 32 matches the curvature of the first airbag 12 . Figure 2 The first airbag 12 is for illustration only. The shape of the first airbag 12 can be adjusted to suit the pelvic shape. The support plate 3 and supporting members can be used to support the patient's pelvis, achieving a better fixation effect. The position of the curved plate 32 can also be adjusted by adjusting the extension and retraction of the electric telescopic rod 31 in the multiple supporting members, allowing for more precise adjustment based on the patient's pelvic shape, which can also aid in the patient's later rehabilitation treatment. For greater patient comfort, a sponge or cushion can be placed inside the first airbag 12 in contact with the patient's body.

[0044] This embodiment provides a specific structure of a fixing frame 11, such as Figure 3 As shown, further, the fixing frame 11 includes: a first support rod 111 and a second support rod 112. The two first support rods 111 are arranged vertically, and the two first support rods 111 are spaced a certain distance apart. The two first support rods 111 are symmetrical, and the connecting rope 21 and the winding assembly 22 are arranged on the first support rod 111. A plurality of second support rods 112 are arranged in a grid between the two first support rods 111, and the plurality of second support rods 112 form a supporting grid. The plurality of second airbags 13 are arranged on the plurality of second support rods 112, and the supporting grid can support the plurality of second airbags 13 and the first airbags 12. The two first support rods 111 play a major supporting role, and the plurality of second support rods 112 in a grid shape can better adapt to the patient's pelvic shape while providing support, thereby achieving a better fixation effect.

[0045] Furthermore, the first support rod 111 and the second support rod 112 are made of an elastic-plastic material, that is, the first support rod 111 and the second support rod 112 can be deformed to a certain extent, and can be made of plastic or iron, so as to further adapt to the patient's pelvic shape and better fix the device. At the same time, when used for bedridden patients, medical staff or family members are required to help wear the device, or install the fixing structure 1 on one side of the patient's bed. When the patient lies in bed, only the fixing structure 1 on the other side needs to be installed. The entire structure of the fixing frame 11 can be deformed, and the material is relatively soft, which can avoid affecting the patient's comfort.

[0046] Among them, the other structures of this embodiment are consistent with those of Example 1, and are just optimizations made to Example 1.

[0047] Example 3

[0048] As a further improvement on Example 2, Figure 4 As shown, further, a plurality of connection holes 113 are respectively provided on the two first support rods 111 in the fixing frame 11. The plurality of connection holes 113 are provided in a straight line along the length direction of the first support rod 111. Two adjacent connection holes 113 are spaced a certain distance apart, and the connection holes 113 pass through the support rod 111 horizontally. One end of the connection rope 21 is fixed to the side wall of the first support rod 111 of one of the fixing frames 11, and the other end of the connection rope 21 is connected to the output end of the winding assembly 22. The connection rope 21 passes through the plurality of connection holes 113 on the first support rod 111 of the two fixing frames 11 in an alternating manner. The connection rope 21 of the device adopts a single staggered connection method and can be connected along the length direction of the support rod 111, so that the two support rods 111 are completely connected together from top to bottom. The upper ends, lower ends and middle parts of the two support rods 111 can be connected together, which has a better fixing effect.

[0049] This embodiment provides a specific structure of a winding assembly 22, such as Figure 5As shown, further, the winding assembly 22 includes: a shell 221, a driving member 222, a rotating drum 223, and a through hole 224. The shell 221 is arranged on the first support rod 111, and a through hole 224 is provided on the side wall of the shell 221. The shell 221 plays a role in protecting the internal structure. The driving member 222 is arranged in the shell 221. The driving member 222 has an output end. The driving member 222 is electrically connected to the controller, and the controller can control the working state of the driving member 222. The rotating drum 223 is arranged at the output end of the driving member 222. The driving member 222 is used to drive the rotating drum 223 to rotate. The driving member 222 can be a motor or a servo or other rotating drive structure. One end of the connecting rope 21 is fixed on the side wall of the rotating drum 223, and the connecting rope 21 passes through the through hole 224 and is wrapped around the circumference of the rotating drum 223. The working principle of the winding assembly 22 in this embodiment is that the driving member 222 drives the rotating drum 223 to rotate, and the connecting rope 21 is wound or unwound on the rotating drum 223 according to the rotation direction of the rotating drum 223, thereby changing the extended length of the connecting rope 21. By changing the extended length of the connecting rope 21, the tightness between the two support rods 111 on the two fixing frames 11 is adjusted, that is, the tightness of the fixation is adjusted according to the patient's condition, and at the same time, the fixation is more firmly.

[0050] Among them, the other structures of this embodiment are consistent with those of Example 2, and are just optimizations made to Example 2.

[0051] The advantage of the present invention is that the device first sets two sets of fixing structures to fix the two sides of the patient's pelvis when in use. By setting the first airbag, it can adapt to the pelvic morphology of different patients. At the same time, the pressure regulating component can adjust the air pressure of the first airbag, and the tightness of the fixation can be adjusted according to the actual situation of the patient to ensure that the patient is in the best treatment state. At the same time, the fixation is more secure and avoids problems such as displacement. Secondly, the device also sets a connecting structure between the two sets of fixing structures. The connecting structure adopts an adjustable method, that is, the tightness between the two sets of fixing structures can be adjusted. The tightness of the fixation can be further adjusted according to the situation of different patients, and the fixation is also more secure.

[0052] The above disclosures are only a few specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the scope of protection of the present invention.

Claims

1. A pelvic fracture fixation device, characterized in that: include: Two groups of fixed structures (1) are symmetrically arranged, the fixed structures (1) comprising a fixed frame (11), a first airbag (12) and a pressure regulating assembly, the first airbag (12) being fixed on the fixed frame (11), the first airbags (12) in the two groups of fixed structures (1) being arranged relative to each other, the pressure regulating assembly having an output end, the output end of the pressure regulating assembly being connected to the first airbag (12), and the pressure regulating assembly being used to regulate the air pressure of the first airbag (12); Two groups of connecting structures (2) are symmetrically arranged between the two groups of fixed structures (1), and the two groups of connecting structures (2) are respectively located at two ends of the two groups of fixed structures (1). The connecting structures (2) include a connecting rope (21) and a winding assembly (22). The winding assembly (22) is arranged on a fixed frame (11) in one group of the fixed structures (1). The winding assembly (22) has an output end. One end of the connecting rope (21) is connected to the output end of the winding assembly (22), and the other end of the connecting rope (21) is connected to the fixed frame (11) in the other group of the fixed structures (1). The winding assembly (22) is used to wind up the connecting rope (21). The first air bag (12) is provided with a first air outlet and a first air inlet, and the pressure regulating assembly comprises: a pressure sensor, which is arranged on one side of the first air bag (12); an air pump, whose output end is connected to the first air inlet of the first air bag (12); and a controller, which is electrically connected to the air pump and the pressure sensor; A plurality of second airbags (13) are provided between the first airbag (12) and the fixing frame (11), the plurality of second airbags (13) are arranged on one side of the first airbag (12), a second air outlet and a second air inlet are provided on the second airbag (13), and the output end of the air pump is communicated with the second air inlet of the second airbag (13); The first airbag (12) is arc-shaped and further comprises: a support plate (3) arranged in the first airbag (12), the support plate (3) being located on a side close to the second airbag (13), a plurality of support members being provided on the support plate (3), the plurality of support members being arranged in a straight line on the support plate (3), the support members comprising: an electric telescopic rod (31) arranged on the support plate (3), the electric telescopic rod (31) being perpendicular to the support plate (3), the electric telescopic rod (31) being electrically connected to the controller; and an arc-shaped plate (32) arranged at one end of the electric telescopic rod (31) facing away from the support plate (3), the arc-shaped plate (32) being against the inner wall of the first airbag (12), the arc of the arc-shaped plate (32) matching the arc of the first airbag (12).

2. A pelvic fracture fixation device according to claim 1, characterized in that: The fixing frame (11) comprises: Two first support rods (111) are vertically arranged, and the connecting rope (21) and the winding assembly (22) are arranged on the first support rods (111); A plurality of second support rods (112) are arranged in a grid shape between two of the first support rods (111), and a plurality of the second airbags (13) are arranged on the plurality of the second support rods (112).

3. A pelvic fracture fixation device according to claim 2, characterized in that: The first support rod (111) and the second support rod (112) are made of elastic-plastic material.

4. The pelvic fracture fixation device according to claim 2, characterized in that: A plurality of connection holes (113) are respectively provided on the two first support rods (111) in the fixing frame (11), and the plurality of connection holes (113) are provided in a straight line along the length direction of the first support rod (111), and the connection holes (113) pass through the first support rod (111) horizontally, one end of the connection rope (21) is fixed to the side wall of the first support rod (111) of one of the fixing frames (11), and the other end of the connection rope (21) is connected to the output end of the winding assembly (22), and the connection rope (21) passes through the plurality of connection holes (113) on the first support rods (111) of the two fixing frames (11) in an alternating manner.

5. The pelvic fracture fixation device according to claim 4, characterized in that: The winding assembly (22) comprises: A shell (221) is arranged on the first support rod (111), and a through hole (224) is provided on a side wall of the shell (221); A driving member (222) is disposed in the housing (221), the driving member (222) having an output end, and the driving member (222) is electrically connected to the controller; A rotating drum (223) is provided at the output end of the driving member (222), and the driving member (222) is used to drive the rotating drum (223) to rotate. One end of the connecting rope (21) is fixed to the side wall of the rotating drum (223), and the connecting rope (21) passes through the through hole (224) and is wound around the circumference of the rotating drum (223).

Images