Brand-new fracture reduction functional internal fixation structure and reduction method

Abstract

The invention discloses a brand-new fracture reduction functional internal fixation structure and a reduction method. The brand-new fracture reduction functional internal fixation structure comprises a steel plate, the reset adjusting hole is formed in the steel plate and used for guiding the reset assembly. The reset assembly is located at the reset adjusting hole and used for being matched with the steel plate to reset. The bone nail fixing holes are formed in the steel plate and used for limiting bone nails. According to the invention, the reduction precision is improved, the surgical difficulty is reduced, the surgical success rate is improved, the risk of re-displacement of the fracture end is reduced, the expansion distraction operation can be carried out, and the requirements of different fracture conditions on the distraction degree are met.

Description

Technical Field

[0001] The present invention relates to the field of fracture surgical treatment, and in particular to a new fracture reduction functional internal fixation structure. Background Art

[0002] In the current field of fracture surgery, traditional surgical methods for comminuted fractures require first making a large incision, then prying open and reducing the fracture ends, and then fixing them with steel plates. However, the bone fragments of comminuted fractures are usually small, and they are very likely to be lost or displaced during the prying process, making it impossible to accurately find the normal anatomical position, which not only increases the difficulty of the operation but also causes greater trauma. Moreover, during distraction and traction, due to the lack of a stable fulcrum, manual traction is difficult to achieve the ideal effect. If a stent is used for distraction, the original bone is too small and it is easy to cause further fragmentation of the bone fragment, making the reduction operation very difficult. Existing fixation plates also have obvious defects. The sleeve design of the traditional baffle is unreasonable, making it too thick, which not only affects the minimally invasive nature of the surgery, but also limits the accuracy of the surgical operation. For example, the original plan was to use a 1.5-centimeter minimally invasive incision, but due to poor design of the steel plate and sleeve, it often needs to be expanded to 2 centimeters or even larger. In addition, the traditional surgical concept mainly relies on the surgeon to directly observe the fracture end for reduction, which requires the incision to be large enough to expose the surgical field, which will also lead to large surgical trauma and slow recovery.

[0003] Therefore, those skilled in the art are committed to providing a new fracture reduction functional internal fixation structure that can effectively solve the above technical problems. Summary of the Invention

[0004] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a new fracture reduction functional internal fixation structure.

[0005] To achieve the above objectives, the present invention provides a new fracture reduction functional internal fixation structure, comprising A fixing component, used for reduction and fixation; The reset component is used to cooperate with the fixing component for reset.

[0006] Furthermore, the fixing component is a steel plate, and a reset adjustment hole is opened on the steel plate for guiding the reset component; the reset adjustment hole is long and narrow, and the reset component can reciprocate along the length direction of the reset adjustment hole.

[0007] Furthermore, an adjusting tooth is provided in the reset adjusting hole, and a gear meshing with the adjusting tooth is provided on the reset assembly, and the reset assembly moves along the length direction of the reset adjusting hole through the gear and the adjusting tooth.

[0008] Furthermore, the reset adjustment hole includes an adjustment section, both sides of the adjustment section are insertion sections, and the adjustment teeth are arranged at the adjustment section.

[0009] Furthermore, the reset assembly includes a reset sleeve and a Kirschner wire, the adjustment tooth is arranged on the lower half of the reset sleeve, and the Kirschner wire is passed through the reset sleeve.

[0010] Furthermore, the reset sleeve includes a guide cylinder, the adjustment tooth is arranged in the lower half of the guide cylinder, the upper end of the guide cylinder is connected to the middle section of the operating rod, the operating rod is perpendicular to the center line of the guide cylinder, and the Kirschner wire is sequentially passed through the operating rod and the guide cylinder from top to bottom; the number of the reset adjustment holes is two.

[0011] Furthermore, it also includes bone screw fixing holes, which are provided on the steel plate and are used to limit the position of the bone screws; the bone screw fixing holes include a plurality of first hole positions and second hole positions, each of the first hole positions is arranged between two reset adjustment holes, and each of the second hole positions is respectively located outside each of the reset adjustment holes; There are six first hole positions, which are evenly distributed along the length of the steel plate. A second hole position is provided on the outside of each reset adjustment hole. Several long horizontal holes are provided along the length of the steel plate.

[0012] Furthermore, a first chuck is provided below the gear, and the first chuck is used to limit the steel plate and the reset sleeve to prevent the steel plate and the reset sleeve from sliding off; A second chuck is provided above the operating rod, and the Kirschner wire is sequentially passed through the second chuck, the operating rod and the guide cylinder from top to bottom. The second chuck is used to prevent the steel plate from separating from the bone surface.

[0013] A new fracture reduction method includes the following steps: S1: fixed to the first bone in the fracture area by a plate; S2: fixation to a second bone in the fracture area through the reduction component; S3: The reduction operation is completed by cooperating with the reduction assembly and the steel plate.

[0014] Furthermore, the S1 specifically includes placing a steel plate at the fracture area, and using bone screws to pass through the bone screw fixation holes on the steel plate to fix the steel plate to the first fractured bone; Specifically, S2 is to place the reduction assembly at one of the reduction adjustment holes, connect the reduction sleeve of the reduction adjustment hole to the steel plate, and then fix the Kirschner wire inserted into the reduction sleeve to the second fractured bone; Specifically, S3 is as follows: the medical staff rotates the operating rod. When the operating rod is rotated, the reduction sleeve moves along the length direction of the reduction adjustment hole, and the movement of the reduction sleeve drives the Kirschner wire to move along the direction of the reduction adjustment hole, thereby driving the second bone to move toward the first bone through the Kirschner wire until the two ends of the bone reach the same horizontal line, thereby completing the reduction; The step S3 further includes fixing the first and second holes of the steel plate with bone screws after the reduction is completed, and finally removing the reduction sleeve and the Kirschner wire, suturing the wound, and completing the operation.

[0015] The present invention has the following beneficial effects: 1. The long strip-shaped reduction adjustment hole opened on the steel plate can provide precise guidance for the reduction assembly, so that the reduction assembly can reciprocate along its length. The adjustment teeth provided in the reduction adjustment hole mesh with the gear on the reduction assembly. Through the cooperation of the gear and the adjustment teeth, the reduction assembly can achieve stable movement in the adjustment hole, avoiding shaking and deviation during the reduction process, greatly improving the reduction accuracy. Through the design of the present invention, medical staff can more accurately control the reduction direction and distance during operation, ensuring that the fracture end can be accurately reduced to the normal position; 2. For complex cases such as comminuted fractures, traditional methods of prying open the bone fragments can easily lead to bone loss or displacement. However, the present invention first fixes the steel plate to the first bone of the fracture, and then uses the reduction assembly to move and reduce the second bone. This eliminates the need to directly pry open the comminuted bone fragments. This not only avoids further damage and loss of the bone fragments, but also makes the reduction operation simpler, reduces the difficulty of the operation, and improves the success rate of the operation. 3. The bone screw fixation holes include several first holes located between the two reduction adjustment holes and second holes located outside each reduction adjustment hole. This distribution allows the bone screws to evenly fix the steel plate, improving the connection stability between the steel plate and the bone. After reduction is completed, by fixing the bone screws in these holes, the steel plate can be firmly fixed to the fracture site, providing stable support for fracture healing and reducing the risk of re-displacement of the fracture end. 4. The reduction structure of the present invention is rationally designed, eliminating the need for a large incision to observe the fracture ends as in traditional surgery. By pre-matching the steel plate with the joint structure and the plate's own reduction function, the surgeon can complete the operation with a smaller incision. 5. When a large degree of distraction is required after a fracture, and the Kirschner wire cannot be fully distracted by rotating the operating lever once, an extended distraction operation can be performed. With the assistance of temporarily positioning the Kirschner wire, the reduction sleeve is moved back to the initial position and distraction is performed again, thereby adapting to the distraction requirements of different fracture conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a specific embodiment of the present invention.

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention.

[0018] Figure 3 yes Figure 2 Schematic diagram of the locally enlarged structure at point A in the middle.

[0019] Figure 4 It is a structural schematic diagram of the steel plate in the present invention.

[0020] Figure 5 It is a structural diagram of the reset component in the present invention.

[0021] Figure 6 yes Figure 5 Schematic diagram of the local enlarged structure at point B in the figure. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the accompanying drawings and examples: In the description of the present invention, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "installed," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0024] like Figures 1 to 6As shown, a novel functional internal fixation structure for fracture reduction includes a fixed component, specifically a steel plate 1. In this embodiment, the steel plate 1 is an elongated strip. In actual clinical applications, the shape of the steel plate 1 is designed according to the principle of personalized adaptation and can be flexibly adjusted to the physiological structure of different parts of the human body. For example, to treat fractures in different parts of the body, such as the hand and leg, the plate can be adapted to various shapes, such as elongated strips, L-shaped, T-shaped, or curved, to meet the anatomical characteristics and fixation requirements of different parts of the body, such as the distal radius, femur, and tibia. Therefore, the shape of the steel plate 1 in this invention is not specifically limited.

[0025] This invention eliminates the need for a large incision to visualize the fracture ends, as is required with traditional surgery. By pre-matching the plate to the joint structure and leveraging the plate's inherent repositioning function, the surgeon can complete the procedure with a smaller incision. For example, a 2-cm or even larger incision, previously required due to poorly designed traditional plates and sleeves, can be reduced to 1.5 cm with this invention, significantly reducing surgical trauma and facilitating postoperative recovery.

[0026] In actual use, since there is no need for a large incision to expose the surgical field, the present invention allows the use of more concealed cosmetic incision methods such as transverse incisions. For patients such as young women who have high requirements for postoperative aesthetics, this incision design makes the surgical marks less obvious, meets the patient's cosmetic needs, and improves the patient's quality of life.

[0027] A reset adjustment hole 2 is provided on the steel plate 1 and is used to guide the reset assembly 3; A reset component 3 is located at the reset adjustment hole 2 and is used to cooperate with the steel plate 1 to reset; The bone screw fixing holes 5 are provided on the steel plate 1 and are used to limit the position of the bone screws.

[0028] The reset adjustment hole 2 is in an elongated strip shape, and the reset assembly 3 can reciprocate along the length direction of the reset adjustment hole 2 .

[0029] An adjusting tooth 6 is provided in the reset adjusting hole 2 , and a gear 7 meshing with the reset component 3 is provided. The reset component 3 moves along the length direction of the reset adjusting hole 2 through the gear 7 and the adjusting tooth 6 .

[0030] The reset adjustment hole 2 includes an adjustment section 8 , both sides of the adjustment section 8 are insertion sections 9 , and the adjustment teeth 6 are arranged at the adjustment section 8 .

[0031] The resetting assembly 3 includes a resetting sleeve 10 and a Kirschner wire 11 . The adjusting tooth 6 is arranged on the lower half of the resetting sleeve 10 , and the Kirschner wire 11 is passed through the resetting sleeve 10 .

[0032] The reset sleeve 10 includes a guide cylinder 12, the adjustment tooth 6 is arranged in the lower half of the guide cylinder 12, the upper end of the guide cylinder 12 is connected to the middle section of the operating rod 13, the operating rod 13 is perpendicular to the center line of the guide cylinder 12, and the Kirschner wire 11 is sequentially passed through the operating rod 13 and the guide cylinder 12 from top to bottom.

[0033] The number of the reset adjustment holes 2 is two.

[0034] The bone screw fixing holes 5 include a plurality of first hole positions 5 a and second hole positions 5 b . Each of the first hole positions 5 a is arranged between two reduction adjustment holes 2 , and each of the second hole positions 5 b is located outside each of the reduction adjustment holes 2 .

[0035] There are six first holes 5a, evenly distributed along the length of the steel plate 1. A second hole 5b is provided outside each of the reset adjustment holes 2. Both the first holes 5a and the second holes 5b are threaded holes for use with bone screws (not shown). In actual use, the number of first holes 5a and second holes 5b is not limited to six and two, respectively, and can be adjusted based on actual conditions. Furthermore, the spacing between two adjacent first holes 5a is not specifically limited.

[0036] In the present invention, a plurality of long strip-shaped transverse holes 20 are provided along the length direction of the steel plate 1 .

[0037] A new fracture reduction method includes the following steps: S1: fixed to the first bone in the fracture area through plate 1; S2: fixation with the second bone in the fracture area through reduction component 3; S3: The resetting operation is completed by cooperating with the resetting component 3 and the steel plate 1.

[0038] The optimal working principle of the present invention is as follows: When using the present invention, a surgical incision is made to open the fracture area, and then the steel plate 1 is placed on the fracture area through the surgical incision. Bone screws (bone screws are medical components used for fracture treatment, which are prior art and not shown in the figure) are passed through the bone screw fixing holes 5 on the steel plate 1 to fix the steel plate 1 to the first bone fracture. According to the actual situation, the reduction assembly 3 is placed in one of the reduction adjustment holes 2, so that the reduction sleeve 10 of the reduction adjustment hole 2 is connected to the steel plate 1, and then the Kirschner wire 11 inserted in the reduction sleeve 10 is fixed to the second fractured bone; The medical staff rotates the operating rod 13. Since the adjustment teeth 6 cooperate with the gear 7, when the operating rod 13 is rotated, the reduction sleeve 10 moves along the length direction of the reduction adjustment hole 2. The movement of the reduction sleeve 10 drives the Kirschner wire 11 to move along the direction of the reduction adjustment hole 2, thereby driving the second bone to move toward the first bone through the Kirschner wire 11 until the two bones reach the same horizontal line, completing the reduction. After reduction, bone screws are used to fix the first hole 5a and the second hole 5b of the steel plate 1, respectively. Finally, the reduction sleeve 10 and the Kirschner wire 11 are removed, the wound is sutured, and the operation is completed.

[0039] In the present invention, the steel plate 1 is further provided with a plurality of elongated transverse holes 20. During use, small Kirschner wires are placed at the elongated transverse holes 20 to improve stability. The elongated transverse holes 20 provided along the length of the steel plate can be used to place small Kirschner wires during use, further improving the stability of the entire fixation structure. This design allows for flexible addition of fixing points based on the actual fracture situation, resulting in a more secure fixation, making it particularly suitable for fractures of varying types and severity. The present invention first secures the bone fragments into a single unit using the steel plate 1 before performing a method of dispersing and reducing the fragments. This avoids the problem of the fragments falling apart during prying in traditional methods, ensuring a satisfactory reduction effect while minimizing further damage to the fragments, thus facilitating fracture healing.

[0040] In addition, during use, due to the different conditions after the fracture, the degree of distraction required is also different. When the Kirschner wire 11 is moved from point a to point b by rotating the operating rod 13 (see Figure 4 If the distance D is not fully expanded, it is necessary to expand the expansion. The specific steps are as follows: To facilitate description and understanding of the scheme, the Kirschner wire 11 will be named as the resetting Kirschner wire, and the newly added Kirschner wire will be named as the temporary positioning Kirschner wire; First, a temporary positioning Kirschner wire is temporarily fixed at the first hole 5a, and then the reduction Kirschner wire (Kirschner wire 11) is removed from the reduction sleeve 10. The reduction sleeve 10 is then rotated to move it from point b back to point a, and then the reduction Kirschner wire (Kirschner wire 11) is reinserted into the reduction sleeve 10. At this point, the temporary positioning Kirschner wire can be removed, and the distraction operation can be repeated by resetting the Kirschner wire (Kirschner wire 11). Through this arrangement, the present invention adapts to the distraction requirements of different fracture conditions, ensures that the fracture ends can be fully reduced, and improves the adaptability and flexibility of the operation.

[0041] In addition, the structural design of the present invention can also be combined with technologies such as robots and artificial intelligence according to actual needs. AO clearly stated that the sixth function of steel plates is fracture reduction, but traditional steel plates cannot adapt to this new mission and responsibility. The present invention can highlight the functional reduction of existing steel plates without changing their original functions, greatly reducing the trauma to patients and the difficulty of surgery. It is an iteratively upgraded invention product. At the same time, this invention can be combined with artificial intelligence in the later stage to achieve intelligent reduction and fixation of fractures.

[0042] The above describes in detail the preferred embodiments of the present invention. It should be understood that those skilled in the art can make numerous modifications and variations based on the concepts of the present invention without inventive effort. Therefore, any technical solutions that can be derived by those skilled in the art through logical analysis, reasoning, or limited experimentation based on the concepts of the present invention and the prior art should be within the scope of protection defined by the claims.

Claims

1. A new fracture reduction functional internal fixation structure, characterized by: include A fixing part, used for reduction and fixation; The reset component (3) is used to cooperate with the fixing component to perform reset.

2. The novel fracture reduction functional internal fixation structure according to claim 1, characterized in that: The fixing component is a steel plate (1), and a reset adjustment hole (2) is provided on the steel plate (1) for guiding the reset component (3); the reset adjustment hole (2) is in the shape of an elongated strip, and the reset component (3) can perform reciprocating motion along the length direction of the reset adjustment hole (2).

3. The novel fracture reduction functional internal fixation structure according to claim 2 is characterized in that: An adjusting tooth (6) is provided in the reset adjusting hole (2), and a gear (7) meshing with the reset component (3) is provided on the reset component (3). The reset component (3) moves along the length direction of the reset adjusting hole (2) through the gear (7) and the adjusting tooth (6).

4. The novel fracture reduction functional internal fixation structure according to claim 3 is characterized in that: The reset adjustment hole (2) comprises an adjustment section (8), both sides of the adjustment section (8) are insertion sections (9), and the adjustment teeth (6) are arranged at the adjustment section (8).

5. The novel fracture reduction functional internal fixation structure according to claim 4 is characterized in that: The resetting assembly (3) comprises a resetting sleeve (10) and a Kirschner wire (11), the adjusting tooth (6) is arranged on the lower half of the resetting sleeve (10), and the Kirschner wire (11) is passed through the resetting sleeve (10).

6. The novel fracture reduction functional internal fixation structure according to claim 5 is characterized in that: The reset sleeve (10) includes a guide cylinder (12), the adjustment tooth (6) is arranged in the lower half of the guide cylinder (12), the upper end of the guide cylinder (12) is connected to the middle section of the operating rod (13), the operating rod (13) is perpendicular to the center line of the guide cylinder (12), and the Kirschner wire (11) is sequentially passed through the operating rod (13) and the guide cylinder (12) from top to bottom; the number of the reset adjustment holes (2) is two.

7. The novel fracture reduction functional internal fixation structure according to claim 6 is characterized in that: It also includes a bone screw fixing hole (5), which is opened on the steel plate (1) and is used to limit the position of the bone screw; the bone screw fixing hole (5) includes a plurality of first hole positions (5a) and second hole positions (5b), each of the first hole positions (5a) is arranged between two reset adjustment holes (2), and each of the second hole positions (5b) is respectively located outside each of the reset adjustment holes (2); The number of each of the first hole positions (5a) is six, and each of the first hole positions (5a) is evenly distributed along the length direction of the steel plate (1). A second hole position (5b) is provided on the outside of each of the reset adjustment holes (2); and a plurality of long strip-shaped transverse holes (20) are provided along the length direction of the steel plate (1).

8. The novel fracture reduction functional internal fixation structure according to claim 7, characterized in that: A first chuck (70) is provided below the gear (7), and the first chuck (70) is used to limit the steel plate (1) and the reset sleeve (10) to prevent the steel plate (1) and the reset sleeve (10) from sliding off; A second chuck (71) is provided above the operating rod (13), and the Kirschner wire (11) is sequentially passed through the second chuck (71), the operating rod (13) and the guide cylinder (12) from top to bottom. The second chuck (71) is used to prevent the steel plate (1) from separating from the bone surface.

9. A new fracture reduction method, characterized by: The following steps are involved: S1: fixed to the first bone in the fracture area by a plate (1); S2: fixation with the second bone in the fracture area through the reduction component (3); S3: The resetting operation is completed by cooperating the resetting component (3) and the steel plate (1).

10. The novel fracture reduction method according to claim 9, characterized in that: Specifically, S1 includes placing the steel plate (1) at the fracture area, and using bone screws to pass through the bone screw fixing holes (5) on the steel plate (1) to fix the steel plate (1) to the first bone of the fracture; Specifically, the step S2 is to place the reduction assembly (3) at one of the reduction adjustment holes (2), connect the reduction sleeve (10) of the reduction adjustment hole (2) to the steel plate (1), and then fix the Kirschner wire (11) inserted into the reduction sleeve (10) to the second bone of the fracture; Specifically, the medical staff rotates the operating rod (13). When the operating rod (13) is rotated, the reset sleeve (10) moves along the length direction of the reset adjustment hole (2). The movement of the reset sleeve (10) drives the Kirschner wire (11) to move along the direction of the reset adjustment hole (2), thereby driving the second bone to move toward the first bone through the Kirschner wire (11) until the bones at both ends reach the same horizontal line, thereby completing the reset; The step S3 further includes fixing the first hole (5a) and the second hole (5b) of the steel plate (1) with bone screws after the reduction is completed, and finally removing the reduction sleeve (10) and the Kirschner wire (11), suturing the wound, and completing the operation.

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