Novel single-arm external fixation support

Abstract

The utility model relates to the technical field of medical supports, in particular to a novel single-arm type external fixing support which comprises a fixing arm, a connecting arm and a rotating structure. The fixed arm comprises a sleeve, a movable plate and a connecting piece; the movable plate is installed on the sleeve in a matched mode, and the connecting piece is configured to enable the movable plate to move outwards in one direction along the sleeve and keep a position locking function. The rotating structure comprises a first connector, a second connector, a pin shaft and a locking rod; the first connector is arranged on the fixed arm, a movable locking rod is arranged on the outer side wall of the first connector, and the locking rod is further sleeved with a spring; the second connector is arranged on the connecting arm, the pin shaft penetrates through the center of the second connector, and the two ends of the pin shaft are rotationally connected with the first connector. The second connector is provided with a plurality of annularly-distributed through holes, and the through holes and the locking rods are installed in a matched mode. According to the connecting arm, the change of adaptive required length adjustment can be achieved, meanwhile, the purpose of reasonable and efficient angle adjustment is achieved, time and labor are saved, and the using effect is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to fracture protection technical field, concretely relates to a novel single arm type external fixation support. BACKGROUND

[0002] Single arm type orthopedics external fixation support refers to the fixed needle is penetrated through the skin at both ends of the fracture line outside the body, and then the needle ends exposed outside the skin are connected through the connecting arm and the needle clamping device, so that the fracture is stabilized and reset. However, the external fixation support of the prior art has a simple structure, and the connecting arm needs to meet the length adjustment purpose. However, the connecting arm of the single arm type external fixation support of the prior art cannot achieve adaptive length adjustment, and the length connection operation is complex. Furthermore, the angle of the external fixation support required for the auxiliary support and fixation is different for different fracture sites, and the traditional single arm type external fixation support cannot achieve reasonable and efficient angle adjustment. Usually, bolts are used for position fixation, which is time-consuming and laborious, and is not convenient for quickly achieving the purpose of adaptive auxiliary support and nursing of the fracture site, and the use effect is not good. SUMMARY

[0003] In order to solve the above-mentioned shortcomings and deficiencies of the prior art external fixation support, the utility model provides a novel single arm type external fixation support with a reasonable structure design, a connecting arm that can achieve adaptive length adjustment, reasonable and efficient angle adjustment, and the purpose of quickly achieving adaptive auxiliary support and nursing of the fracture site.

[0004] The utility model discloses the following technical scheme to achieve the above-mentioned purpose:

[0005] A novel single arm type external fixation support, comprising a fixed arm, a connecting arm and a rotating structure connected therebetween, the fixed arm comprises a sleeve, a moving plate and a connecting piece, the sleeve is distributed left and right and has a hollow structure, the moving plate is adaptively installed in the sleeve, the connecting piece is configured to allow the moving plate to move outward along the sleeve in one direction and keep the position locking function, the connecting arm has a similar structure to the fixed arm, the rotating structure comprises a first connecting head, a second connecting head, a pin shaft and a locking rod, the first connecting head is provided on the fixed arm and has a concave structure as a whole, the locking rod movably arranged on the outer side wall of the first connecting head, a spring is further sleeved and installed on the locking rod, one end of the spring is connected with the end of the locking rod, and the other end is connected with the outer side wall of the first connecting head, the second connecting head is provided on the connecting arm, the pin shaft penetrates through the center of the second connecting head and is rotatably connected with the first connecting head at both ends, a plurality of through holes are arranged in a ring shape on the second connecting head, and the through holes are matched with the locking rod.

[0006] In order to better realize the one-way and position fixing effect of the sleeve and the moving plate, as a preferred technical scheme: the connecting piece comprises a first ratchet plate and a second ratchet plate; the first ratchet plate is arranged axially on the moving plate; the sleeve is provided with a mounting hole; the second ratchet plate is arranged at the mounting hole and is integrally formed with the sleeve; and the first ratchet plate and the second ratchet plate can only move outward in one direction.

[0007] In order to better realize the position fixing of the sleeve and the moving plate and the unlocking and resetting purposes, further preferred technical scheme: the second ratchet plate is an elastic plate, and the outer side wall is provided with a handle, so that the first ratchet plate and the second ratchet plate are unlocked to complete the resetting operation of the moving plate.

[0008] Further preferred technical scheme: the sleeve and the moving plate are square structures.

[0009] In order to better realize the angle adjustment requirement change of the fixing arm and the connecting arm, as a preferred technical scheme: the through holes are twelve annularly distributed holes; and the angles at which the twelve through holes are distributed are 180 degrees.

[0010] In order to better help nursing staff to observe and accurately adjust the angle adjustment requirement change of the fixing arm and the connecting arm, further preferred technical scheme: the outer side wall of the first connecting head is further provided with convex point marks corresponding to the distribution of the through holes.

[0011] Further preferred technical scheme: in the initial state, the locking rod is matched and installed with the through holes distributed on one side end, at this time, the fixing arm and the connecting arm are distributed at an angle of 180 degrees.

[0012] The beneficial effects of the utility model compared with the prior art are: the utility model has reasonable structure, and the sleeve, the moving plate and the connecting piece are matched; the function that the moving plate can move outward in one direction along the sleeve and keep position locking is realized, operation is simple, time and labor are saved, the fixing arm and the connecting arm can realize adaptive length adjustment, the problem that the connecting arm of the single-arm external fixation support of the prior art cannot realize adaptive length adjustment change is solved; further, the first connecting head, the second connecting head, the pin shaft and the locking rod are matched, the locking rod is matched and installed with different through holes, reasonable and efficient angle adjustment change between the fixing arm and the connecting arm can be realized, the use effect is good, and the purpose of adaptively assisting the support nursing of the fracture affected part is quickly realized, and the utility model is more practical. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings described below only show some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0014] Figure 1 It is a whole structure perspective view of the present application.

[0015] Figure 2 It is a partial structure view of the rotating structure of the present application.

[0016] Figure 3 It is a structure schematic view of the second connecting head of the present application.

[0017] Figure 4 It is a structure schematic view of the connecting piece of the present application.

[0018] In the figure: 1, fixed arm; 2, connecting arm; 3, rotating structure; 4, sleeve; 5, moving plate; 6, connecting piece; 7, first connecting head; 8, second connecting head; 9, pin shaft; 10, locking rod; 11, spring; 12, through hole; 13, first ratchet plate; 14, second ratchet plate; 15, handle; 16, convex point mark; 17, mounting hole. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments only show some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0020] It should be noted that in the specific embodiments of the present application, the relationship terms such as "first" and "second" and the like that may appear are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between the entities or operations. Moreover, the terms such as "include", "contain" or any other variants that may appear are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the appearing statement "including a..." and the like limited elements do not exclude the presence of other same elements in the process, method, article or device including the elements.

[0021] In the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "provided with" that may appear should be understood in a broad sense, for example, it can be fixedly connected, or integrally connected, or mechanically connected, or electrically connected, or directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0022] Embodiment: as shown in Figures 1 to 4

[0023] A new type of single-arm external fixation support, comprising a fixed arm 1, a connecting arm 2 and a rotating structure 3 connected therebetween. Among them, the fixed arm as the first positioning support can be used as the reference fulcrum; the connecting arm as the second positioning support mainly serves as a rotating auxiliary, which is first adjusted according to the requirements of suitable angle and preset length according to the situation of the fracture site of the patient. As shown in Figure 1 The fixed arm 1 includes a sleeve 4, a moving plate 5 and a connecting piece 6. In order to better realize the overall telescopic adjustment of the fixed arm and the purpose of auxiliary support of the fracture part, the sleeve 4 and the moving plate 5 are adapted to the square structure. The sleeve 4 is distributed left and right, and is a hollow structure; as Figure 1 ​The sleeve is hollow on the left side and connected with a moving plate, and the right end is a solid structure for connecting the first connecting head. The moving plate 5 is adapted to be installed on the sleeve 4, and the connecting piece 6 is configured to move outward along the sleeve 4 and keep the position locking function. By setting the sleeve, the moving plate and the connecting piece, the moving plate can move outward along the sleeve and keep the position locking function, which is simple to operate, saves time and effort, and the fixed arm and the connecting arm can realize the length adjustment of the adaptive demand, which solves the problem that the connecting arm of the single-arm external fixation support in the prior art cannot realize the length adjustment of the adaptive demand.

[0024] As shown in Figure 4 In order to better realize the one-way connection of the sleeve and the moving plate and the position fixing effect, specifically, the connecting piece 6 includes a first ratchet plate 13 and a second ratchet plate 14. The first ratchet plate 13 is axially arranged on the moving plate 5, one side of the sleeve 4 is provided with a mounting hole 17, the second ratchet plate 14 is mounted at the mounting hole 17, and the second ratchet plate 14 is integrally formed with the sleeve 4. The first ratchet plate 13 and the second ratchet plate 14 can only move outward in one direction. The purpose of such arrangement is to ensure that the moving plate moves outward relative to the sleeve to form the elongation of the fixed arm as a whole, so as to adapt to the purpose of supporting the fracture of the patient with different length requirements. The second ratchet plate 14 is a flexible plate, and the outer side wall is provided with a handle 15, so that the first ratchet plate 13 and the second ratchet plate 14 are unlocked to complete the moving plate 5 inward movement reset operation. The purpose of such arrangement is to facilitate the reset storage treatment after the auxiliary support and fixation of the fracture of the patient, which is simple to operate and saves time and effort. The connecting arm 2 and the fixed arm 1 have similar structures; that is, the connecting arm also has the telescopic function and can realize the fixing effect of the auxiliary support position.

[0025] As shown in Figure 1 In this embodiment, the rotating structure 3 includes a first connecting head 7, a second connecting head 8, a pin shaft 9 and a locking rod 10. The first connecting head 7 is arranged on the fixed arm 1 and has a concave structure as a whole, and the first connecting head and the fixed arm can be integrally formed or connected and fixed by welding. The outer side wall of the first connecting head 7 is provided with a movable locking rod 10, that is, the locking rod is arranged on the front and rear side walls of the first connecting head. As shown in Figure 2As shown: the locking rod 10 is also sleeved with a spring 11, one end of the spring 11 is connected with the end of the locking rod 10, and the other end is connected with the outer side wall of the first connecting head 7; wherein the spring force is large enough, and the purpose of such setting is to ensure the connection between the locking rod and the through hole in the normal state, to form an external fixing support with a preset angle between the fixed arm and the connecting arm, to be simple to operate, time-saving and labor-saving, and to avoid the problem that the connecting arm structure with an angle in the prior art still needs to be manually fastened by a bolt. The second connecting head 8 is arranged on the connecting arm 2, and the two can be an integrally formed structure. The pin shaft 9 penetrates through the center of the second connecting head 8 and is rotatably connected to the first connecting head 7 at both ends through bearings. The second connecting head 8 is provided with a plurality of through holes 12 distributed in a ring shape, and the through holes 12 are matched with the locking rod 10.

[0026] As Figure 3 shown: in order to better realize the change of the angle adjustment requirement between the fixed arm and the connecting arm, in the preferred technical solution, the through holes 12 are twelve evenly distributed in a ring shape; and the angles at which the twelve through holes 12 are distributed are 180 degrees. That is, the connecting arm is counterclockwise rotated every adjacent through hole to form a 15-degree angle change. In order to better help nursing staff observe and accurately adjust the change of the angle adjustment requirement between the fixed arm and the connecting arm, the outer side wall of the first connecting head 7 is also provided with a convex point mark 16 corresponding to the distribution of the through holes 12. Figure 1 As shown: in the initial state, the locking rod 10 is matched with the through holes 12 distributed on one side end, and at this time the fixed arm 1 and the connecting arm 2 are distributed at an angle of 180 degrees. By setting the first connecting head, the second connecting head, the pin shaft and the locking rod, and by matching the locking rod with different through holes, reasonable and efficient angle adjustment change between the fixed arm and the connecting arm can be realized, the use effect is good, and the purpose of quickly realizing adaptive auxiliary support nursing for the fractured part is achieved, which is more practical.

[0027] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A novel single-arm external fixation bracket, characterized in that: The system includes a fixed arm (1), a connecting arm (2), and a rotating structure (3) connecting the two. The fixed arm (1) includes a sleeve (4), a movable plate (5), and a connector (6). The sleeve (4) is distributed on the left and right sides and has a hollow structure. The movable plate (5) is adapted to be installed on the sleeve (4). The connector (6) is configured such that the movable plate (5) can move outward unidirectionally along the sleeve (4) and maintain a position locking function. The connecting arm (2) has a similar structure to the fixed arm (1). The rotating structure (3) includes a first connector (7), a second connector (8), a pin (9), and a locking rod (10). The first connector (7) is located on the fixed arm (1). The fixed arm (1) has a concave structure. The outer wall of the first connector (7) is provided with a movable locking rod (10). A spring (11) is also sleeved on the locking rod (10). One end of the spring (11) is connected to the end of the locking rod (10), and the other end is connected to the outer wall of the first connector (7). The second connector (8) is located on the connecting arm (2). The pin (9) passes through the center of the second connector (8) and its two ends are rotatably connected to the first connector (7). The second connector (8) is provided with a plurality of through holes (12) distributed in a ring. The through holes (12) are matched and installed with the locking rod (10).

2. The novel single-arm external fixation bracket as described in claim 1, characterized in that: The connector (6) includes a first ratchet plate (13) and a second ratchet plate (14); the first ratchet plate (13) is axially distributed on the movable plate (5), and a mounting hole (17) is provided on one side of the sleeve (4). The second ratchet plate (14) is installed at the mounting hole (17) and the second ratchet plate (14) is integrally formed with the sleeve (4); the first ratchet plate (13) and the second ratchet plate (14) can only move outward in one direction.

3. A novel single-arm external fixation bracket as described in claim 2, characterized in that: The second ratchet plate (14) is an elastic plate, and a handle (15) is provided on the outer side wall so that the first ratchet plate (13) and the second ratchet plate (14) can be unlocked to complete the inward repositioning operation of the moving plate (5).

4. A novel single-arm external fixation bracket as described in claim 3, characterized in that: The sleeve (4) and the movable plate (5) are adapted square structures.

5. A novel single-arm external fixation bracket as described in claim 1, characterized in that: The through holes (12) are twelve in a ring, and the twelve through holes (12) are distributed at an angle of 180 degrees.

6. A novel single-arm external fixation bracket as described in claim 5, characterized in that: The outer wall of the first connector (7) is also provided with protrusion marks (16) corresponding to the distribution of the through hole (12).

7. A novel single-arm external fixation bracket as described in claim 6, characterized in that: In the initial state, the locking rod (10) is matched and installed with the through hole (12) distributed on one side end. At this time, the fixing arm (1) and the connecting arm (2) are distributed at a 180-degree angle.

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