Adjustable reduction fixing instrument for ankle joint fracture

Abstract

The utility model provides an adjustable reduction fixing instrument for ankle joint fracture, and belongs to the technical field of medical instruments. Comprising an outer frame, a first bolt penetrates through one side of the outer frame in a threaded mode, and a movable needle tube frame, a needle tube and a spring penetrate through the outer frame in a threaded mode through the first bolt. The first bolt is screwed and unscrewed to enable the movable needle tube frame to move in the movable groove, the extension rod moves in the fixing rod to adjust the position, the fixing ring can fix the upper portion of the ankle joint, and the problems that due to the fact that the body position needs to be frequently moved during an operation, the ankle joint is injured again, and medical staff cannot conveniently conduct the operation are solved. The first hand support is rotated through the first rotating shaft, and the second hand support is rotated to a proper position, so that two hands are prevented from having a rest at a position without supporting, the fatigue of the two hands of medical personnel during an operation is relieved, the two hands of the medical personnel and kirschner wire probing are limited, the injury to ankle joints during the operation is reduced, and the operation efficiency is higher and safer.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and particularly relates to an adjustable reduction and fixation device for ankle fractures. Background Art

[0002] For posterior malleolar Haraguchi type I fractures of the ankle joint, including Lauge-Hansen classification supination-external rotation type and pronation-external rotation type fractures, the traditional surgical method is to directly expose the fracture through a posterior approach in the prone position, perform reduction and then fix it with lag screws or posterior malleolar plates. For fractures combined with medial and lateral malleolar fractures, the patient's position needs to be changed during the operation, increasing the surgical approach. This not only prolongs the operation time but also increases the risk of infection. It not only excessively damages the tissues around the ankle joint, which may cause scar adhesion and limited joint mobility in the later stage, but also increases the probability of neurovascular injury. Fixing manually through the medial approach increases the injury of medical staff and further increases the fluoroscopy time of the patient. In response to this situation, a reduction and fixation device for posterior malleolar fractures was developed.

[0003] This reduction and fixation device is mainly for the reduction and fixation of posterior malleolar fractures through the medial approach. For fractures combined with medial and lateral malleolar fractures, the medial and lateral malleoli should be fixed first, and then the reduction and fixation device for posterior malleolar fractures should be inserted through the medial approach. An anterior ankle fixation device should be installed, a sleeve should be placed, and lag screws should be inserted through the front.

[0004] An adjustable ankle joint rehabilitation traction device for joint angles disclosed in the Chinese invention patent application publication specification CN104939958A uses a lead screw and nut as traditional components. On the one hand, it can provide a self-locking function, and on the other hand, this structure can make it more labor-saving for users. Users only need to replace the calf and foot braces according to their needs, and the rest can be made into standard parts for use, reducing costs and shortening the processing cycle. However, this device cannot assist in ankle joint surgery, fix and limit the ankle joint, resulting in excessive displacement of the ankle joint during surgery, which may cause further damage to the ankle joint. It cannot support the hands of medical staff, causing the hands to be overworked during long-term surgery, resulting in excessive penetration of the hands and Kirschner wires into the patient's ankle joint. There is no needle hole to guide the penetration of the Kirschner wire, resulting in displacement of the Kirschner wire and further damage to the ankle joint, increasing the operation time, increasing the injury of medical staff, and reducing work efficiency. Therefore, this application provides an adjustable reduction and fixation device for ankle fractures to meet the needs. Summary of the Invention

[0005] (I) Technical Problems to be Solved

[0006] In view of the deficiencies of the prior art, the present utility model provides an adjustable reduction and fixation instrument for ankle fractures, which solves the problems that the ankle joint cannot be fixed and limited during the operation, resulting in excessive displacement of the ankle joint, inability to assist the penetration of Kirschner wires, displacement during entry, and secondary injury, as well as the lack of support for the hands of medical staff during long-term work and excessive penetration of the hands.

[0007] (II) Technical solution

[0008] To solve the above technical problems, the present utility model provides the following technical solution:

[0009] An adjustable reduction and fixation instrument for ankle fractures includes an outer frame. One side of the outer frame is threadedly penetrated by a first bolt. The outer frame threadedly penetrates a movable syringe holder through the first bolt. One side of the movable syringe holder is sleeved with a syringe. One side of the movable syringe holder is clamped with a first support plate. The upper surface of the first support plate is threadedly penetrated by a second bolt. One side of the first support plate is sleeved with a first baffle. The inside of the first support plate is rotatably connected with a first rotating shaft. The first support plate rotatably connects a first rotating plate through the first rotating shaft. One side of the first rotating plate is sleeved with a first handrest. The upper surface of the outer frame is sleeved with a fixing component. The outer surface of the outer frame is sleeved with a movable needle base. One side of the movable needle base is threadedly penetrated by a third bolt. One side of the movable needle base is sleeved with a support component.

[0010] Preferably, the fixing component includes a ball head connecting rod, a fourth bolt, a fixing rod, a spring seat, a button, a first spring, an extension rod, and a fixing ring. One side of the ball head connecting rod is threadedly penetrated by the fourth bolt. The ball head connecting rod threadedly penetrates the fixing rod through the fourth bolt. One side of the fixing rod is sleeved with the spring seat. The first spring is arranged inside the spring seat. The first spring is sleeved with the button. One side of the spring seat is sleeved with the extension rod. One side of the extension rod is inserted with the fixing ring.

[0011] Preferably, the support component includes a second support plate, a second rotating shaft, a second rotating plate, a second handrest, a third support plate, a third rotating shaft, and a second baffle. The inside of the second support plate is rotatably connected with the second rotating shaft. The second support plate rotatably connects the second rotating plate through the second rotating shaft. One side of the second rotating plate is sleeved with the second handrest. One side of the second rotating plate is sleeved with the third support plate. The inside of the third support plate is rotatably connected with the third rotating shaft. The third support plate rotatably connects the second baffle through the third rotating shaft.

[0012] Preferably, a moving hole is opened on one side of the outer frame, which is adapted to the first bolt. A moving groove is opened on the other side of the outer frame near the moving hole, which is adapted to one side of the movable syringe holder. A scale is provided on the upper surface of the outer frame.

[0013] Preferably, a needle passing hole is formed on one side of the first baffle, a needle hole is formed on one side of the syringe needle, the needle passing hole is the same size as the needle hole, and the material of the first handrest is silica gel.

[0014] Preferably, a moving hole is formed on one side of the ball head connecting rod, the moving hole is the same size as the fourth bolt, a moving groove is formed on the other side of the ball head connecting rod, the moving groove is adapted to the fixing rod, and a plurality of holes are formed on the upper surface of the fixing rod, and the holes are the same size as the button.

[0015] Preferably, the material of the second handrest is silica gel.

[0016] Preferably, needle passing holes are formed on both the upper and lower sides of the moving needle seat, a groove is formed on one side of the moving needle seat, the groove is adapted to the supporting assembly, and a needle hole is formed on one side of the outer frame.

[0017] Compared with the prior art, the utility model has at least the following beneficial effects:

[0018] In the above solution, by setting the first bolt to be tightened and unscrewed, the moving needle tube holder moves in the moving groove, the extension rod moves in the fixing rod for position adjustment, and the fixing ring can fix the upper part of the ankle joint, avoiding the ankle joint being damaged again due to frequent movement of the body position during the operation, and it is not convenient for medical staff to perform the operation, so as to fix the ankle joint at multiple angles, cause secondary injury to the ankle joint, and facilitate the operation of medical staff. By rotating the first handrest through the first rotating shaft, the second handrest is rotated to a suitable position, avoiding the fatigue of the medical staff's hands during a long operation, and there is no support position for the hands to rest. Inevitably, the Kirschner wire will penetrate too much during the operation of the medical staff, relieving the fatigue of the medical staff's hands during the operation, restricting the penetration of the medical staff's hands and the Kirschner wire, reducing the injury to the ankle joint during the operation, making the operation more efficient, faster and safer. The needle holes on both the upper and lower sides of the moving needle seat make the Kirschner wire enter more smoothly without shaking, avoiding damage to the ankle joint due to the deviation of the Kirschner wire during the operation, so that the Kirschner wire can enter more smoothly and accurately, making the ankle joint operation safer and faster.

[0019] In summary, the utility model has the advantages of being able to fix the ankle joint during the operation, avoiding excessive displacement of the ankle joint, assisting the Kirschner wire not to displace during penetration, avoiding secondary injury, providing support for the medical staff's hands, avoiding excessive fatigue and excessive penetration of the hands. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of an adjustable reduction and fixation instrument for ankle fractures;

[0021] Figure 2Explosion schematic diagram of the external frame structure of an adjustable reduction and fixation instrument for ankle fractures;

[0022] Figure 3 Plan schematic diagram of the external frame structure of an adjustable reduction and fixation instrument for ankle fractures;

[0023] Figure 4 Explosion schematic diagram of the moving needle seat structure of an adjustable reduction and fixation instrument for ankle fractures;

[0024] Figure 5 Explosion schematic diagram of the fixed component structure of an adjustable reduction and fixation instrument for ankle fractures;

[0025] Figure 6 Explosion schematic diagram of the support component structure of an adjustable reduction and fixation instrument for ankle fractures.

[0026] [Reference numerals]

[0027] 1. External frame; 2. First bolt; 3. Moving needle tube holder; 4. Needle tube; 5. First support plate; 6. Second bolt; 7. First baffle; 8. First rotating shaft; 9. First rotating plate; 10. First handrest; 11. Fixed component; 1101. Ball head connecting rod; 1102. Fourth bolt; 1103. Fixed rod; 1104. Spring seat; 1105. Button; 1106. First spring; 1107. Extension rod; 1108. Fixed ring; 12. Moving needle seat; 13. Third bolt; 14. Support component; 1401. Second support plate; 1402. Second rotating shaft; 1403. Second rotating plate; 1404. Second handrest.

[0028] As shown in the figure, in order to clearly show the structure of the embodiments of the present invention, specific structures and devices are marked in the figure, but this is only for schematic purposes and is not intended to limit the present invention to this specific structure, device and environment. Those of ordinary skill in the art can adjust or modify these devices and environments according to specific needs. Detailed implementation manners

[0029] The following will describe in detail an adjustable reduction and fixation instrument for ankle fractures provided by the present invention with reference to the accompanying drawings and specific embodiments. At the same time, it should be noted here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some well-known technologies, those skilled in the art can also adopt other alternative methods for implementation; and the accompanying drawings are only for more specifically describing the embodiments and are not intended to specifically limit the present invention.

[0030] It should be noted that in the specification, references to "an embodiment", "embodiments", "exemplary embodiments", "some embodiments", etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment includes such specific features, structures, or characteristics. Additionally, when describing a specific feature, structure, or characteristic in connection with an embodiment, implementing such feature, structure, or characteristic in connection with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the relevant art.

[0031] Generally, terms can be understood, at least in part, from their use in context. For example, depending at least in part on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or can be used to describe a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood to not necessarily be intended to convey a set of exclusive factors, but rather, depending at least in part on the context, can alternatively allow for the existence of other factors that may not be explicitly described.

[0032] It can be understood that the meanings of "on", "above", and "over" in the present utility model should be interpreted in the broadest manner, such that "on" not only means "directly on" something, but also includes the meaning of being "on" something with intervening features or layers therebetween, and "above" or "over" not only means "above" or "over" something, but can also include the meaning of being "above" or "over" something with no intervening features or layers therebetween.

[0033] Furthermore, spatial relative terms such as "under", "below", "lower", "above", "upper", etc. are used herein for convenience of description to describe the relationship of one element or feature to another or other elements or features, as shown in the drawings. Spatial relative terms are intended to cover different orientations in the use or operation of the device in addition to the orientation depicted in the drawings. The device may be oriented in other ways, and the spatial relative descriptors used herein can be interpreted accordingly.

[0034] As Figures 2 to 6As shown in the figure, an embodiment of the present utility model provides an adjustable reduction and fixation instrument for ankle fractures, including an outer frame 1. A scale is provided on the upper surface of the outer frame 1. A needle hole is opened on one side of the outer frame 1. A first bolt 2 is threadedly penetrated through one side of the outer frame 1. A moving hole is opened on one side of the outer frame 1, and the moving hole is adapted to the first bolt 2. A moving needle tube holder 3 is threadedly penetrated through the outer frame 1 by the first bolt 2. A moving groove is opened on the other side of the outer frame 1 close to the moving hole, and the moving groove is adapted to one side of the moving needle tube holder 3. A needle tube 4 is sleeved on one side of the moving needle tube holder 3. A first support plate 5 is clamped on one side of the moving needle tube holder 3. A second bolt 6 is threadedly penetrated through the upper surface of the first support plate 5. A first baffle 7 is sleeved on one side of the first support plate 5. A needle-passing hole is opened on one side of the first baffle 7. A needle hole is opened on one side of the needle tube 4, and the needle-passing hole and the needle hole are of the same size. A first rotating shaft 8 is rotatably connected inside the first support plate 5. The first support plate 5 is rotatably connected with a first rotating plate 9 through the first rotating shaft 8. A first hand support 10 is sleeved on one side of the first rotating plate 9. The material of the first hand support 10 is silicone. A fixing component 11 is sleeved on the upper surface of the outer frame 1. The fixing component 11 includes a ball head connecting rod 1101, a fourth bolt 1102, a fixing rod 1103, a spring seat 1104, a button 1105, a first spring 1106, an extension rod 1107, and a fixing ring 1108. A fourth bolt 1102 is threadedly penetrated through one side of the ball head connecting rod 1101. A moving hole is opened on one side of the ball head connecting rod 1101, and the moving hole is of the same size as the fourth bolt 1102. When the required moving angle is too large, the ball head connecting rod 1101 can be rotated by a certain angle through the lower ball head for adjustment. The ball head connecting rod 1101 is threadedly penetrated through the fixing rod 1103 by the fourth bolt 1102. A moving groove is opened on the other side of the ball head connecting rod 1101, and the moving groove is adapted to the fixing rod 1103. A spring seat 1104 is sleeved on one side of the fixing rod 1103. A first spring 1106 is arranged inside the spring seat 1104. The first spring 1106 is sleeved with the button 1105. A plurality of holes are opened on the upper surface of the fixing rod 1103, and the holes are of the same size as the button 1105. An extension rod 1107 is sleeved on one side of the spring seat 1104. A fixing ring 1108 is inserted on one side of the extension rod 1107. A moving needle seat 12 is sleeved on the outer surface of the outer frame 1. A third bolt 13 is threadedly penetrated through one side of the moving needle seat 12. Needle-passing holes are opened on both the upper and lower sides of the moving needle seat 12. A groove is opened on one side of the moving needle seat 12, and the groove is adapted to the support component 14. A support component 14 is sleeved on one side of the moving needle seat 12. The support component 14 includes a second support plate 1401, a second rotating shaft 1402, a second rotating plate 1403, and a second hand support 1404. A second rotating shaft 1402 is rotatably connected inside the second support plate 1401. The second support plate 1401 is rotatably connected with a second rotating plate 1403 through the second rotating shaft 1402. A second hand support 1404 is sleeved on one side of the second rotating plate 1403.The material of the second hand support 1404 is silicone.

[0035] By tightening and loosening the first bolt 2, the movable syringe holder 3 is moved within the moving groove, and the extension rod 1107 is moved within the fixed rod 1103 for position adjustment, so that the fixing ring 1108 can fix the upper part of the ankle joint, avoiding repeated injuries to the ankle joint due to frequent movement of the body position during surgery and also making it inconvenient for medical staff to perform the surgery. Thus, multi-angle fixation of the ankle joint is achieved, preventing secondary injury to the ankle joint and facilitating the surgical operation of medical staff. The first hand support 10 is rotated through the first rotating shaft 8 to rotate the second hand support 1404 to a suitable position, avoiding fatigue of the medical staff's hands during long-term surgery and providing a resting position for the hands without support. Inevitably, during surgery, medical staff may insert the Kirschner wire too deeply. This relieves the fatigue of the medical staff's hands during surgery, limits the insertion of the medical staff's hands and the Kirschner wire, reduces the injury to the ankle joint during surgery, and makes the surgery more efficient, faster, and safer. The needle holes on both the upper and lower sides of the movable needle seat 12 enable the Kirschner wire to enter more smoothly without shaking, avoiding injury to the ankle joint due to deviation of the Kirschner wire during surgery. Thus, the Kirschner wire can enter more smoothly and accurately, making the ankle joint surgery safer and faster.

[0036] The technical solution provided by the present utility model: The working process is as follows. By tightening and loosening the first bolt 2, the movable syringe holder 3 is moved within the moving groove, and the extension rod 1107 is moved within the fixed rod 1103 for position adjustment, so that the fixing ring 1108 can fix the upper part of the ankle joint, avoiding repeated injuries to the ankle joint due to frequent movement of the body position during surgery and also making it inconvenient for medical staff to perform the surgery. Thus, multi-angle fixation of the ankle joint is achieved, preventing secondary injury to the ankle joint and facilitating the surgical operation of medical staff. The first hand support 10 is rotated through the first rotating shaft 8 to rotate the second hand support 1404 to a suitable position, avoiding fatigue of the medical staff's hands during long-term surgery and providing a resting position for the hands without support. Inevitably, during surgery, medical staff may insert the Kirschner wire too deeply. This relieves the fatigue of the medical staff's hands during surgery, limits the insertion of the medical staff's hands and the Kirschner wire, reduces the injury to the ankle joint during surgery, and makes the surgery more efficient, faster, and safer. The needle holes on both the upper and lower sides of the movable needle seat 12 enable the Kirschner wire to enter more smoothly without shaking, avoiding injury to the ankle joint due to deviation of the Kirschner wire during surgery. Thus, the Kirschner wire can enter more smoothly and accurately, making the ankle joint surgery safer and faster.

[0037] The present utility model covers any alternatives, modifications, equivalent methods and solutions made to the essence and scope of the present utility model. In order to enable the public to have a thorough understanding of the present utility model, specific details are described in detail in the following preferred embodiments of the present utility model, and those skilled in the art can fully understand the present utility model without the description of these details. In addition, well-known methods, processes, procedures, components and circuits, etc. are not described in detail in order to avoid unnecessary confusion to the essence of the present utility model.

[0038] The above are only the preferred embodiments of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.

Claims

1. An adjustable reduction and fixation instrument for ankle fractures, characterized in that, It includes an outer frame (1), on one side of the outer frame (1) there is a first bolt (2) threaded therethrough, the outer frame (1) has a movable syringe holder (3) threaded therethrough by the first bolt (2), on one side of the movable syringe holder (3) there is a syringe (4) sleeved thereon, on one side of the movable syringe holder (3) there is a first support plate (5) snap - connected, on the upper surface of the first support plate (5) there is a second bolt (6) threaded therethrough, on one side of the first support plate (5) there is a first baffle (7) sleeved, inside the first support plate (5) there is a first rotating shaft (8) rotatably connected, the first support plate (5) is rotatably connected with a first rotating plate (9) through the first rotating shaft (8), on one side of the first rotating plate (9) there is a first handrest (10) sleeved, on the upper surface of the outer frame (1) there is a fixing component (11) sleeved, on the outer surface of the outer frame (1) there is a movable needle base (12) sleeved, on one side of the movable needle base (12) there is a third bolt (13) threaded therethrough, and on one side of the movable needle base (12) there is a support component (14) sleeved.

2. The adjustable reduction and fixation instrument for ankle fractures according to claim 1, characterized in that, The fixing component (11) includes a ball - head connecting rod (1101), a fourth bolt (1102), a fixing rod (1103), a spring seat (1104), a button (1105), a first spring (1106), an extension rod (1107), and a fixing ring (1108). On one side of the ball - head connecting rod (1101) there is a fourth bolt (1102) threaded therethrough, the ball - head connecting rod (1101) has the fixing rod (1103) threaded therethrough by the fourth bolt (1102), on one side of the fixing rod (1103) there is a spring seat (1104) sleeved, inside the spring seat (1104) there is a first spring (1106), the first spring (1106) sleeves the button (1105), on one side of the spring seat (1104) there is an extension rod (1107) sleeved, and on one side of the extension rod (1107) there is a fixing ring (1108) inserted.

3. The adjustable reduction and fixation instrument for ankle fractures according to claim 1, characterized in that, The support component (14) includes a second support plate (1401), a second rotating shaft (1402), a second rotating plate (1403), and a second handrest (1404). Inside the second support plate (1401) there is a second rotating shaft (1402) rotatably connected, the second support plate (1401) is rotatably connected with a second rotating plate (1403) through the second rotating shaft (1402), and on one side of the second rotating plate (1403) there is a second handrest (1404) sleeved.

4. The adjustable reduction and fixation instrument for ankle fractures according to claim 1, wherein On one side of the outer frame (1) there is a moving hole, the moving hole is adapted to the first bolt (2), on the other side of the outer frame (1) near the moving hole there is a moving groove, the moving groove is adapted to one side of the movable syringe holder (3), and on the upper surface of the outer frame (1) there is a scale.

5. The adjustable reduction and fixation instrument for ankle fractures according to claim 1, wherein On one side of the first baffle (7) there is a needle - passing hole, on one side of the syringe (4) there is a needle hole, the needle - passing hole is the same size as the needle hole, and the material of the first handrest (10) is silicone.

6. The adjustable reduction and fixation instrument for ankle fractures according to claim 2, wherein One side of the ball head connecting rod (1101) is provided with a moving hole, which is the same size as the fourth bolt (1102). The other side of the ball head connecting rod (1101) is provided with a moving groove, which is mutually adapted to the fixed rod (1103). The upper surface of the fixed rod (1103) is provided with a plurality of holes, which are the same size as the button (1105).

7. The adjustable reduction and fixation instrument for ankle fractures according to claim 3, characterized in that, The material of the second handrest (1404) is silicone.

8. The adjustable reduction and fixation instrument for ankle fractures according to claim 1, wherein, Both the upper and lower sides of the movable needle base (12) are provided with needle passing holes. One side of the movable needle base (12) is provided with a groove, which is mutually adapted to the support assembly (14). One side of the outer frame (1) is provided with a needle hole.

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