Fracture bridging internal fixing device with multidirectional self-adaptive fixing structure

Abstract

The utility model provides a fracture bridging internal fixing device with a multidirectional self-adaptive fixing structure, and belongs to the technical field of orthopedic fixing instruments. Comprising a bridging part used for fixing a femoral body fracture of a patient; the guide block is used for assisting treatment of the femoral neck fracture of the patient; the connecting block is mounted on the bridging part; the transmission block is mounted at the bottom end of the guide block. According to the fracture fixing device, the connecting block and the transmission block are arranged, the inclination angle of the fracture fixing device can be changed according to the fracture injury condition, and then an anti-spiral screw is guided to enter the fracture fixing device so as to fix the fracture position; the limiting block is clamped with any set of limiting pieces to fix the transmission block in the rotating process of the transmission block, then multi-directional self-adaptive angle adjustment and effective fixation are achieved, and compared with the prior art, the angle adjusting and fixing device has the obvious advantages in the aspects of flexibility and diversity of angle adjustment and fixation.

Description

Technical Field

[0001] This utility model relates to the field of orthopedic fixation device technology, and in particular to a fracture bridging internal fixation device with a multi-directional adaptive fixation structure. Background Technology

[0002] The bridging and modular internal fixation device is a medical device used for fracture treatment. It adopts a unique bridging and modular design concept to provide stable fixation support for the fracture site, promote fracture healing, and minimize the impact on surrounding tissues, helping patients to better recover limb function.

[0003] When treating femoral neck fractures and femoral body fractures together, femoral body fractures are fixed in a single straight line using a bridging method, while femoral neck fractures have variable directions, requiring adjustments to the angle of the fixation structure based on the patient's injury condition.

[0004] In the prior art, the fixation structure for treating femoral neck fractures only changes the angle through hinges, which is a single connection method. This leads to insufficient stability of the fixation structure, causing displacement of the fixation structure during the joint treatment of femoral neck and femoral body fractures. This is detrimental to the patient's recovery and may cause secondary injury. Therefore, this application provides a fracture bridging internal fixation device with a multi-directional adaptive fixation structure to meet the needs. Utility Model Content

[0005] The technical problem this invention aims to solve is to provide a fracture bridging internal fixation device with a multi-directional adaptive fixation structure to address the shortcomings of existing fixation structures for femoral neck fracture treatment. These structures rely solely on hinges to change angles, resulting in a single connection method that leads to insufficient stability of the fixation structure. Consequently, during the combined treatment of femoral neck and femoral body fractures, the fixation structure may shift, hindering patient recovery and potentially causing secondary injuries.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a fracture bridging internal fixation device with a multi-directional adaptive fixation structure, comprising: a bridging part for fixing a patient's femoral body fracture; a guide block for assisting in the treatment of a patient's femoral neck fracture; a connecting block installed on the bridging part; a transmission block installed at the bottom end of the guide block; a rotating rod installed in the connecting block, rotatably connected to the connecting block, and fixedly connected to the transmission rod; a limiting block installed at one end of the rotating rod; and multiple sets of limiting members located on the connecting block, configured such that when the transmission block rotates, the limiting block engages with any set of limiting members to fix the transmission block.

[0007] Preferably, it further includes: a limiting shell, installed on the connecting block and sleeved with the rotating rod, configured to pass through the limiting shell and approach the guide block side when the rotating rod rotates; and multiple sets of limiting grooves, evenly opened on the limiting shell, configured to have each set of limiting grooves slidably connected to a set of limiting members.

[0008] Preferably, it further includes: multiple sets of elastic elements, installed on the side of the limiting groove away from the guide block and connected to the limiting element, configured such that when the limiting block presses against the limiting element, the limiting element presses against the elastic elements, so that the limiting frame moves away from the guide block.

[0009] Preferably, it further includes: a circular groove formed on the limiting shell and the connecting block; a circular block installed in the circular groove and slidably connected to the circular groove, and configured such that when one end of the elastic member is compressed, the other end is compressed against the circular block.

[0010] Preferably, it further includes: a pull ring, installed on the side of the circular block away from the guide block, for pulling the circular block to slide in the circular groove; and a locking rod, located in the pull ring, for engaging with the connecting block to fix the circular block in the circular groove.

[0011] Preferably, it further includes: a fixing shell, mounted on the connecting block, for fixing one end of the clamp rod.

[0012] Preferably, the limiting member has a groove for engaging with the limiting block.

[0013] Preferably, the limiting member is inclined at both ends on the side near the guide block, and the limiting block is inclined at both ends on the side near the guide block, so that when the limiting block squeezes the limiting member, the limiting block can better enter the groove.

[0014] Compared with the prior art, this utility model has at least the following beneficial effects: In the above solution, by setting a connecting block and a transmission block, the anti-coil screw can be guided into the fracture site after changing the tilt angle according to the fracture injury. Furthermore, through the cooperation of components such as the rotating rod, the limiting block, and multiple sets of limiting parts, the limiting block can be engaged with any set of limiting parts to fix the transmission block during the rotation of the transmission block. This enables multi-directional adaptive adjustment of the angle and effective fixation, which has significant advantages over the prior art in terms of flexibility and versatility in angle adjustment and fixation. Attached Figure Description

[0015] Furthermore, the accompanying drawings, which form part of this specification, illustrate embodiments of the present disclosure and, together with the specification, further serve to explain the principles of the present disclosure and enable those skilled in the art to implement and use the present disclosure.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2This is a schematic diagram of the structure of some components in this utility model;

[0018] Figure 3 This is a structural schematic diagram of some components in this utility model from another perspective;

[0019] Figure 4 This is an exploded view of the rotating rod, the limiting component, the limiting shell, and the circular block in this utility model;

[0020] Figure 5 This is a schematic diagram of the limiting component and the elastic component in this utility model.

[0021] [Figure Labels]

[0022] 1. Bridging part; 2. Guide block; 3. Connecting block; 4. Transmission block; 5. Rotating rod; 6. Limiting block; 7. Limiting component; 8. Limiting shell; 9. Limiting groove; 10. Elastic component; 11. Circular groove; 12. Circular block; 13. Pull ring; 14. Locking rod; 15. Fixing shell; 16. Groove.

[0023] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to the specific structure, device and environment. According to specific needs, those skilled in the art can adjust or modify these devices and environments, and such adjustments or modifications are still included in the scope of the appended claims. Detailed Implementation

[0024] The following is a detailed description of a fracture bridging internal fixation device with a multi-directional adaptive fixation structure provided by this utility model, in conjunction with the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this utility model.

[0025] like Figures 1 to 4 As shown, an embodiment of this utility model provides a fracture bridging internal fixation device with a multi-directional adaptive fixation structure, comprising: a bridging part 1 for fixing a patient's femoral body fracture; a guide block 2 for assisting in the treatment of a patient's femoral neck fracture; a connecting block 3 installed on the bridging part 1; a transmission block 4 installed at the bottom end of the guide block 2; a rotating rod 5 installed in the connecting block 3, rotatably connected to the connecting block 3, and fixedly connected to the transmission rod; a limiting block 6 installed at one end of the rotating rod 5; and multiple sets of limiting members 7 located on the connecting block 3, configured such that when the transmission block 4 rotates, the limiting block 6 engages with any set of limiting members 7 to fix the transmission block 4.

[0026] It should be noted that the bridging part 1 includes a bridging component and multiple sets of connecting elements. When a femoral body fracture surgery is required, the length of the bridging component covers the fracture site. First, the two sets of connecting elements are placed at both ends of the bridging component and fixed with screws. Then, according to the fracture condition, an appropriate number of connecting elements are selected to fix the fracture in the middle of the bridging component. The role of the guide block 2 in femoral neck fracture surgery is to guide the anti-coil screws into place after changing the tilt angle according to the fracture condition, thereby fixing the fracture site.

[0027] like Figures 2 to 3 As shown, it also includes: a limiting shell 8, which is installed on the connecting block 3 and sleeved with the rotating rod 5, and is configured to pass through the limiting shell 8 and approach the guide block 2 when the rotating rod 5 rotates; multiple sets of limiting grooves 9, which are evenly opened on the limiting shell 8, and are configured to slide in connection with a set of limiting members 7 for each set of limiting grooves 9; the limiting shell 8 is installed at the connection between the rotating rod 5 and the connecting block 3.

[0028] like Figure 4 and Figure 5 As shown, it also includes: multiple sets of elastic elements 10, installed on the side of the limiting groove 9 away from the guide block 2 and connected to the limiting element 7, and configured so that when the limiting block 6 presses the limiting element 7, the limiting element 7 presses the elastic element 10, so that the limiting frame moves away from the guide block 2; the elastic element 10 is a spring or sheet, etc.

[0029] like Figure 3 As shown, it also includes: a circular groove 11, which is formed on the limiting shell 8 and the connecting block 3; a circular block 12, which is installed in the circular groove 11 and is slidably connected to the circular groove 11, and is configured such that when one end of the elastic member 10 is squeezed, the other end is squeezed towards the circular block 12.

[0030] like Figure 3 As shown, it also includes: a pull ring 13, installed on the side of the circular block 12 away from the guide block 2, for pulling the circular block 12 to slide in the circular groove 11; and a locking rod 14, located in the pull ring 13, for engaging with the connecting block 3 to fix the circular block 12 in the circular groove 11.

[0031] like Figure 3 As shown, it also includes: a fixing shell 15, which is installed on the connecting block 3 and is used to fix one end of the clamp rod 14.

[0032] like Figure 4 and Figure 5 As shown, the limiting member 7 has a groove 16 for engaging with the limiting block 6.

[0033] It should be noted that the limiting component 7 is a cylinder with a groove 16 in the middle, and the two ends of the cylinder are beveled. This allows the limiting component 7 to be better engaged in the groove 16 regardless of the angle from which the rotating rod 5 presses the limiting block 6. During the angle adjustment process, the approximate angle of the guide block 2 is first determined, and the locking rod 14 is inserted into the pull ring 13 to keep the circular block 12 fixed. Then, the transmission rod is rotated to keep the guide block 2 fixed. When adjustment is needed, the locking rod 14 is pulled out of the pull ring 13, and the circular block 12 slides away from the guide block 2 in the circular groove 11, so that the limiting frame and the limiting block 6 contact and engage. The transmission rod can then drive the rotating rod 5 to continue rotating.

[0034] like Figure 4 As shown, the limiting member 7 is inclined at both ends on the side near the guide block 2, and the limiting block 6 is inclined at both ends on the side near the guide block 2, so that when the limiting block 6 squeezes the limiting member 7, the limiting block 6 can better enter the groove 16.

[0035] The technical solution provided by this utility model for femoral body fracture fixation is as follows: Based on the length of the fracture site, a bridging component of appropriate length is selected to ensure it covers the fracture site. Two sets of connecting elements are placed at both ends of the bridging component, and then screws are used to firmly fix these two sets of connecting elements onto the bridging component, completing the initial assembly preparation. Based on the specific injury of the patient's fracture, an appropriate number of connecting elements are further selected and installed in the middle of the bridging component, and then fixed with screws, thereby achieving effective fixation of the femoral body fracture.

[0036] Femoral neck fracture fixation procedure: First, based on the severity of the femoral neck fracture, roughly determine the tilt angle of guide block 2. During this process, insert the locking rod 14 into the pull ring 13, keeping the circular block 12 fixed in the circular groove 11. This ensures the overall stability of the device during the initial adjustment of the guide block 2 angle, avoiding unnecessary component movement that could interfere with the angle adjustment. With the locking rod 14 inserted into the pull ring 13 to fix the circular block 12, rotate the transmission rod, causing the rotating rod 5 and its connected limiting block 6 to rotate. Because the limiting member 7 has a groove 16 in the middle and beveled ends, regardless of the angle from which the rotating rod 5 presses the limiting member 7 with the limiting block 6, the limiting block 6 can better engage in the groove 16 of the limiting member 7. By continuously rotating the transmission rod, the guide block 2 gradually reaches... The guide block 2 is tilted at a precise and appropriate angle to accurately guide and fix the femoral neck fracture. Once the ideal angle is reached, the limiting block 6 engages with a set of limiting components 7, effectively fixing the transmission block 4 and maintaining the tilt angle of the guide block 2, so that the subsequent spiral screw can be accurately placed into the fracture site. If further adjustment of the guide block 2 angle or other related components is required during the operation or postoperative review, the locking rod 14 is first pulled out from the pull ring 13. After the locking rod 14 is pulled out, the circular block 12 can slide away from the guide block 2 in the circular groove 11. At this time, the sliding of the circular block 12 will release the previous fixed contact state between the limiting frame and the limiting block 6 (if they were previously engaged), and the transmission rod can drive the rotating rod 5 to continue rotating, thereby realizing the readjustment of the guide block 2 angle and other related components. During the adjustment process, the same principle of cooperation between the limiting member 7 and the limiting block 6 is applied. That is, no matter from which angle the rotating rod 5 presses the limiting member 7 with the limiting block 6, the limiting block 6 can better enter the groove 16 of the limiting member 7 to engage and complete the adjustment and fixation of the new angle.

[0037] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details have been described in detail in the above preferred embodiments; however, those skilled in the art can fully understand this utility model even without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0038] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A fracture bridging internal fixation device with a multi-directional adaptive fixation structure, characterized in that, include: The bridging section (1) is used to fix the patient's femoral body fracture; Guide block (2) is used to assist in the treatment of femoral neck fractures in patients; Connecting block (3) is installed on bridging part (1); The transmission block (4) is installed at the bottom end of the guide block (2); The rotating rod (5) is installed in the connecting block (3), rotatably connected to the connecting block (3), and fixedly connected to the transmission rod; A limiting block (6) is installed at one end of the rotating rod (5); Multiple sets of limiting members (7) are located on the connecting block (3) and are configured such that when the transmission block (4) rotates, the limiting block (6) engages with any set of limiting members (7) to fix the transmission block (4).

2. The fracture bridging internal fixation device with a multi-directional adaptive fixation structure according to claim 1, characterized in that, Also includes: The limiting shell (8) is installed on the connecting block (3) and sleeved with the rotating rod (5). It is configured to pass through the limiting shell (8) and approach the guide block (2) when the rotating rod (5) rotates. Multiple sets of limiting grooves (9) are evenly opened on the limiting shell (8), and each set of limiting grooves (9) is slidably connected to a set of limiting members (7).

3. The fracture bridging internal fixation device with a multi-directional adaptive fixation structure according to claim 2, characterized in that, Also includes: Multiple sets of elastic elements (10) are installed on the side of the limiting groove (9) away from the guide block (2) and connected to the limiting element (7). They are configured such that when the limiting block (6) presses the limiting element (7), the limiting element (7) presses the elastic element (10) so that the limiting frame moves away from the guide block (2).

4. The fracture bridging internal fixation device with a multi-directional adaptive fixation structure according to claim 3, characterized in that, Also includes; A circular groove (11) is formed on the limiting shell (8) and the connecting block (3); A circular block (12) is installed in a circular groove (11) and is slidably connected to the circular groove (11). It is configured such that when one end of the elastic element (10) is compressed, the other end is compressed against the circular block (12).

5. The fracture bridging internal fixation device with a multi-directional adaptive fixation structure according to claim 4, characterized in that, Also includes: A pull ring (13) is installed on the side of the circular block (12) away from the guide block (2) to pull the circular block (12) to slide in the circular groove (11); The lever (14), located in the pull ring (13), is used to engage with the connecting block (3) so that the circular block (12) is fixed in the circular groove (11).

6. The fracture bridging internal fixation device with a multi-directional adaptive fixation structure according to claim 5, characterized in that, Also includes: The fixing shell (15) is installed on the connecting block (3) and is used to fix one end of the clamp rod (14).

7. The fracture bridging internal fixation device with a multi-directional adaptive fixation structure according to claim 1, characterized in that, The limiting member (7) has a groove (16) for engaging with the limiting block (6).

8. The fracture bridging internal fixation device with a multi-directional adaptive fixation structure according to claim 7, characterized in that, The limiting member (7) is inclined at both ends on the side near the guide block (2), and the limiting block (6) is inclined at both ends on the side near the guide block (2) so that when the limiting block (6) squeezes the limiting member (7), the limiting block (6) can better enter the groove (16).

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