An adaptive conformable elastic bone plate

Abstract

The utility model provides a kind of self-adapting conformal elastic bone plate, including bone plate body, the upper end of bone plate body is equipped with multiple limit openings, the inner end of limit opening is threadedly connected with stud, and the end of stud close to limit opening is fixedly connected with locking inner column, and the outer end of locking inner column is provided with several anti-loosening threaded parts, by the thread cooperation of stud and limit opening and the setting of locking inner column and anti-loosening threaded part, the preliminary positioning and stable locking of bone plate body on bone surface are realized, prevent loosening and falling off, and multiple groups of follow-up self-adapting horizontal plates can generate elastic deformation according to irregular arc or curved surface of bone surface affected area under the action of spring piece, self-adapting conform to bone surface profile, fill gap, the magnetic connection of electromagnetic side block and metal inner block, further fixed follow-up self-adapting horizontal plate, ensure that bone plate and bone surface are closely adhered, and flexible contact surface increases contact comfort, avoid damaging bone surface tissue.

Description

Technical Field

[0001] This utility model relates to an adaptive and fitting elastic bone plate, belonging to the field of medical device technology. Background Technology

[0002] In the field of fracture treatment, bone plates are commonly used internal fixation devices, and their fixation effect plays a crucial role in fracture healing. Traditional bone plates are usually rigid structures, which are difficult to conform to irregular bone surface shapes, resulting in problems such as unstable fixation and stress shielding leading to osteoporosis.

[0003] A bone plate and bone assembly, disclosed in Chinese Patent No. CN218009919U, includes an inner surface, an outer surface, and an inner surface. The inner surface faces the bone, and the outer surface is positioned opposite to the inner surface. In this embodiment, the maximum distance between the inner and outer surfaces of the bone plate at the fixing portion is greater than the maximum distance between the inner and outer surfaces at the connecting portion, thereby increasing the depth of the locking hole. When a screw is passed through the locking hole and tightened, more of the screw head is accommodated within the locking hole, reducing the portion of the screw head protruding from the outer surface of the bone plate. This reduces irritation of the screw head to soft tissue and improves the healing speed of the patient's fracture.

[0004] While some flexible bone plates can provide some micro-movement to promote fracture healing, they lack the ability to adapt and adjust when fitting the bone surface. They cannot closely fit the complex bone surface contours of different patients, resulting in the fracture ends not being effectively fixed and affecting the healing effect.

[0005] To address this, an adaptive, fitting elastic bone plate is proposed. Utility Model Content

[0006] In view of this, the present invention provides an adaptive fitting elastic bone plate to solve or alleviate the technical problems existing in the prior art, and at least provides a beneficial option.

[0007] The technical solution of this utility model is implemented as follows: An adaptive fitting elastic bone plate includes a bone plate body. The upper end of the bone plate body is provided with multiple limiting holes. The inner end of the limiting hole is threaded with a stud. The end of the stud near the limiting hole is fixedly connected with a locking inner post. The outer end of the locking inner post is provided with several anti-loosening threaded parts. The end of the bone plate body away from the stud is provided with multiple strip-shaped grooves. The lower inner wall of the strip-shaped groove is fixedly connected with a pair of springs. The ends of the corresponding two springs away from the strip-shaped groove are fixedly connected with a follow-up adaptive horizontal plate. The left and right ends of the follow-up adaptive horizontal plate are symmetrically provided with side slots. The inner side wall of the side slot is fixedly connected with an electromagnetic side block. The left and right inner walls of the strip-shaped groove are symmetrically fixedly connected with metal inner blocks.

[0008] More preferably, the multiple limiting openings are arranged horizontally at equal intervals, and the adaptive horizontal plate slides within the strip groove.

[0009] More preferably, the corresponding metal inner block and electromagnetic side block are magnetically connected, and the electromagnetic side block is externally connected to a control terminal.

[0010] More preferably, the end of the adaptive cross plate away from the strip groove is fixedly connected to a flexible contact surface, and the bone plate body contacts the affected bone surface.

[0011] More preferably, the left and right inner walls of the limiting opening are symmetrically fixedly connected with adjustable rotating shafts, and an angle-adjustable inner cylinder is rotatably connected between the two adjustable rotating shafts.

[0012] More preferably, the inner end of the angle-adjustable inner cylinder is provided with several internally fitted threads, and a locking washer is fixedly connected to the end of the angle-adjustable inner cylinder near the stud.

[0013] More preferably, the locking washer is located between the angle-adjustable inner cylinder and the stud, and multiple sets of follow-up adaptive horizontal plates and multiple limiting openings are spaced apart.

[0014] The present invention has the following advantages due to the adoption of the above technical solution:

[0015] I. This utility model achieves initial positioning and stable locking of the bone plate body on the bone surface through the threaded engagement of the stud and the limiting opening, as well as the setting of the locking inner post and the anti-loosening threaded part, preventing loosening and falling off. Multiple sets of follow-up adaptive horizontal plates can produce elastic deformation according to the irregular arc or curved surface of the bone surface under the action of the spring, adaptively conforming to the contour of the bone surface and filling the gaps. The magnetic connection between the electromagnetic side block and the metal inner block further fixes the follow-up adaptive horizontal plates, ensuring that the bone plate fits tightly with the bone surface. At the same time, the flexible contact surface increases the contact comfort and avoids damage to the bone surface tissue.

[0016] II. This utility model, through the setting of an adjustable rotating shaft and an angle-adjustable inner bore cylinder, can adjust the angle according to the specific bone surface conditions and fixation requirements. With the help of the internal adapter thread, the penetration angle of the locking inner column can be changed, the fixation direction and force can be adjusted, and the locking gasket increases the friction to enhance the locking effect. This allows the bone plate to achieve stable and reliable fixation under complex bone surface conditions, meet diverse clinical treatment needs, and effectively improve the fracture fixation effect and treatment adaptability.

[0017] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the bone plate body structure of this utility model;

[0020] Figure 2 This is a partially enlarged structural diagram of the bone plate body of this utility model;

[0021] Figure 3 This is an exploded structural diagram of the bone plate body of this utility model;

[0022] Figure 4 This is an enlarged schematic diagram of the locking inner column structure of this utility model;

[0023] Figure 5 This is an enlarged schematic diagram of the adaptive horizontal plate structure of this utility model;

[0024] Figure 6 This is a schematic diagram of the internal structure of the limiting opening of this utility model.

[0025] Reference numerals: 1. Bone plate body; 2. Limiting opening; 3. Stud; 4. Strip groove; 5. Spring component; 6. Follow-up adaptive cross plate; 7. Side slot; 8. Electromagnetic side block; 9. Metal inner block; 10. Flexible contact surface; 11. Anti-loosening thread component; 12. Control outer end; 13. Adjustable rotating shaft component; 14. Angle-adjustable inner cylinder; 15. Internal adapter thread; 16. Locking washer; 17. Locking inner column. Detailed Implementation

[0026] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0027] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0028] Example 1

[0029] like Figure 1-5As shown, this utility model embodiment provides an adaptive fitting elastic bone plate, including a bone plate body 1. The upper end of the bone plate body 1 is provided with multiple limiting holes 2. The inner end of the limiting hole 2 is threadedly connected to a stud 3. The end of the stud 3 near the limiting hole 2 is fixedly connected to a locking inner post 17. The outer end of the locking inner post 17 is provided with a number of anti-loosening threaded parts 11. The end of the bone plate body 1 away from the stud 3 is provided with multiple strip-shaped grooves 4. The lower inner wall of the strip-shaped groove 4 is fixedly connected to a pair of spring parts 5. The ends of the corresponding two spring parts 5 away from the strip-shaped groove 4 are fixedly connected to a follow-up adaptive horizontal plate 6. The left and right ends of the follow-up adaptive horizontal plate 6 are symmetrically provided with side slots 7. The inner side wall of the side slot 7 is fixedly connected to an electromagnetic side block 8. The left and right inner walls of the strip-shaped groove 4 are symmetrically fixedly connected to metal inner blocks 9.

[0030] Multiple limiting openings 2 are horizontally and equidistantly arranged. The follow-up adaptive horizontal plate 6 slides in the strip groove 4. The corresponding metal inner block 9 and electromagnetic side block 8 are magnetically connected. The electromagnetic side block 8 is connected to a control outer end 12. The end of the follow-up adaptive horizontal plate 6 away from the strip groove 4 is fixedly connected to a flexible contact surface 10. The bone plate body 1 contacts the bone surface of the affected area. Multiple sets of follow-up adaptive horizontal plates 6 and multiple limiting openings 2 are spaced apart.

[0031] Example 2

[0032] like Figure 3-6 As shown, in one embodiment, adjustable rotating shafts 13 are symmetrically fixedly connected to the left and right inner walls of the limiting opening 2. An angle-adjustable inner cylinder 14 is rotatably connected between the two adjustable rotating shafts 13. The inner end of the angle-adjustable inner cylinder 14 is provided with a plurality of internally fitted threads 15. A locking washer 16 is fixedly connected to one end of the angle-adjustable inner cylinder 14 near the stud 3. The locking washer 16 is located between the angle-adjustable inner cylinder 14 and the stud 3.

[0033] The adjustable shaft 13 and the angle-adjustable inner cylinder 14 form a rotating connection structure. According to the specific shape of the bone surface, the fracture location, and the fixation requirements, the angle-adjustable inner cylinder 14 can be rotated manually or with the aid of instruments. The axial angle of the angle-adjustable inner cylinder 14 can be changed by the adjustable shaft 13. The inner adapter thread 15 at the inner end of the angle-adjustable inner cylinder 14 cooperates with the locking inner post 17, so that the locking inner post 17 can pass through the limiting opening 2 at different tilt angles, thereby adjusting the fixation direction and force of the stud 3 on the bone surface. The locking washer 16 set at the end of the angle-adjustable inner cylinder 14 near the stud 3 can increase the friction between the stud 3 and the bone plate body 1 during the tightening process of the stud 3, further enhancing the locking effect of the stud 3, ensuring that the bone plate can achieve stable and reliable fixation under different complex bone surface conditions, and meeting diverse clinical treatment needs.

[0034] In operation, this invention, during fracture treatment, works on the following principle of the self-adaptive elastic bone plate: First, the bone plate body 1 is placed on the affected bone surface. The stud 3 is screwed into the limiting opening 2. The threaded engagement between the stud 3 and the limiting opening 2 achieves initial positioning and locking of the bone plate body 1 on the bone surface. A locking inner post 17, fixed to one end of the stud 3 near the limiting opening 2, penetrates the limiting opening 2. The anti-dislodgement threaded part 11 at the outer end of the locking inner post 17 engages with the bone surface structure to prevent the stud 3 from loosening or falling off during fixation, thus enhancing the overall stability of the bone plate. This ensures the stability of the bone plate during contact between the bone plate body 1 and the bone surface. The area is equipped with multiple sets of adaptive horizontal plates 6. When the bone plate body 1 is in contact with the bone surface, due to the irregular arc or curved surface of the affected bone surface, the spring 5 fixed to the inner wall of the strip groove 4 is compressed or stretched under force, causing elastic deformation. This drives the adaptive horizontal plate 6 connected to it to move along the direction of force, so that the adaptive horizontal plate 6 can adaptively conform to the contour shape of the affected bone surface, effectively filling the gap between the bone plate body 1 and the bone surface. Power is supplied to the electromagnetic side block 8 through the external control end 12, so that the electromagnetic side block 8 fixed to the inner wall of the side slot 7 generates magnetism. The electromagnetic side block 8 and the metal inner blocks 9 fixed to the left and right inner walls of the strip groove 4 are magnetic. Magnetic attraction is generated between them, making the follow-up adaptive transverse plate 6 firmly connected to the bone plate body 1. This prevents the follow-up adaptive transverse plate 6 from shifting due to external forces during fracture healing, ensuring a tight fit between the bone plate and the bone surface. At the same time, the flexible contact surface 10 fixed at the end of the follow-up adaptive transverse plate 6 away from the strip groove 4 increases the comfort of contact with the bone surface and avoids damage to the bone tissue. Inside the limiting opening 2, the adjustable rotating shaft 13 and the angle-adjustable inner cylinder 14 form a rotating connection structure. Depending on the specific shape of the affected bone surface, the fracture location, and the fixation requirements, the angle-adjustable inner cylinder 14 can be rotated manually or with the aid of instruments. The axial angle of the adjustable inner cylinder 14 can be changed by the adjustable pivot 13. The inner adapter thread 15 at the inner end of the adjustable inner cylinder 14 cooperates with the locking inner post 17, so that the locking inner post 17 can pass through the limiting opening 2 at different tilt angles, thereby adjusting the fixing direction and force of the stud 3 on the bone surface. The locking washer 16 set at the end of the adjustable inner cylinder 14 near the stud 3 can increase the friction between the stud 3 and the bone plate body 1 during the tightening process of the stud 3, further enhancing the locking effect of the stud 3, ensuring that the bone plate can achieve stable and reliable fixation under different complex bone surface conditions, and meeting diverse clinical treatment needs.

[0035] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An adaptive fitting elastic bone plate, comprising a bone plate body (1), characterized in that: The upper end of the bone plate body (1) is provided with multiple limiting holes (2). The inner end of the limiting hole (2) is threaded with a stud (3). The end of the stud (3) near the limiting hole (2) is fixedly connected with a locking inner post (17). The outer end of the locking inner post (17) is provided with several anti-loosening threaded parts (11). The end of the bone plate body (1) away from the stud (3) is provided with multiple strip grooves (4). The lower inner wall of the strip groove (4) is fixedly connected with a pair of spring parts (5). The ends of the two corresponding spring parts (5) away from the strip groove (4) are fixedly connected with a follow-up adaptive horizontal plate (6). The left and right ends of the follow-up adaptive horizontal plate (6) are symmetrically provided with side slots (7). The inner side wall of the side slot (7) is fixedly connected with an electromagnetic side block (8). The left and right inner walls of the strip groove (4) are symmetrically fixedly connected with metal inner blocks (9).

2. The adaptive fitting elastic bone plate according to claim 1, characterized in that: The multiple limiting openings (2) are arranged horizontally at equal intervals, and the follow-up adaptive horizontal plate (6) is slidably arranged in the strip groove (4).

3. The adaptive fitting elastic bone plate according to claim 1, characterized in that: The corresponding metal inner block (9) and electromagnetic side block (8) are magnetically connected, and the electromagnetic side block (8) is externally connected to a control terminal (12).

4. The adaptive fitting elastic bone plate according to claim 1, characterized in that: The end of the adaptive horizontal plate (6) away from the strip groove (4) is fixedly connected to a flexible contact surface (10), and the bone plate body (1) contacts the affected bone surface.

5. The adaptive fitting elastic bone plate according to claim 1, characterized in that: The left and right inner walls of the limiting opening (2) are symmetrically fixedly connected with adjustable rotating shafts (13), and the two adjustable rotating shafts (13) are rotatably connected with an angle-adjustable inner cylinder (14).

6. The adaptive fitting elastic bone plate according to claim 5, characterized in that: The inner end of the angle-adjustable inner cylinder (14) is provided with several internal adapter threads (15), and a locking washer (16) is fixedly connected to one end of the angle-adjustable inner cylinder (14) near the stud (3).

7. The adaptive fitting elastic bone plate according to claim 6, characterized in that: The locking gasket (16) is located between the angle-adjustable inner cylinder (14) and the stud (3), and the multiple sets of the follow-up adaptive horizontal plates (6) and the multiple limiting openings (2) are spaced apart.

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