Combined bone fracture plate for bone trauma
Through the design of the combined bone plate, the main and auxiliary bone plate parts and the binding and tying mechanism are used to achieve multi-directional fixation of bones, which solves the problem of small fixation range of the existing bone plate and enhances the fixation effect and applicability.
Patent Information
- Application Number
- CN202510730765.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-03
- Publication Date
- 2025-07-18
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
When fixing bones, the fixing orientation and range of existing bone plates are limited, and they cannot effectively support major bone trauma.
Two main bone plates and two auxiliary bone plates are arranged up and down, and multi-directional fixation is achieved through the bone plate binding and harness mechanism. The auxiliary bone plates can be adjusted in length to increase the fixation range and are connected and fixed by means of bone nails.
It has achieved multi-directional fixation of bones, and different bone formation methods are selected according to the degree of bone injury, which can increase the scope of application and freedom of the bone formation plate, and can effectively support the bone surface.
Smart Images
Figure CN120324088A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of bone plate appliances, and particularly relates to a combined bone plate for bone trauma. Background Art
[0002] Bone trauma mainly refers to the damage of bones, bone joints and the soft tissues around the joints caused by external force injury to patients. When the degree of injury is relatively mild, oral medications can be combined with local physical therapy, acupuncture, massage and other methods to promote the recovery of the injury. For some patients with relatively severe injuries, including fractures and even joint deformities, surgical internal fixation is usually required to correct the damaged structure, thereby promoting the recovery of the damaged bones. At the same time, the patient should also pay attention to wearing a certain brace to protect the damaged part.
[0003] The bone plate is a perforated plate-shaped fracture internal fixation device used when the degree of injury is relatively severe. Clinically, it is often used in combination with bone screws or bone wires, and is divided into two categories: ordinary bone plates and compression bone plates. In the use of bone plates, a single bone plate is often fixed to the bone through bone nails. When the bone trauma is relatively large, the ordinary bone plate cannot support the bone relatively completely, resulting in the effectively supported bone surface, while the opposite bone surface cannot be effectively supported. Therefore, those skilled in the art propose a combined bone plate for bone trauma here. Summary of the Invention
[0004] In view of the defect that the fixing orientation and range of the current bone plate are small in the above-mentioned background art, a technical solution for a combined bone plate for bone trauma is provided.
[0005] It includes two main bone plate components arranged up and down, two secondary bone plate components are arranged on the left and right sides of the main bone plate components, and 3 groups of bone plate binding and restraining mechanisms are arranged between the main bone plate components and the secondary bone plate components;
[0006] The main bone plate member includes a bone plate body, a bone plate head integrally formed at the front end of the bone plate body, and a pure titanium tie fixed to the bone plate binding and restraining mechanism inside the bone plate body; specific description: mirror-symmetrically fix two bone plate bodies and bone plate heads around the bone, and at the same time insert the bone plate binding and restraining mechanism into the interiors of the two bone plate bodies in sequence. Then, place the auxiliary bone plate member on the left and right sides of the main bone plate member, and insert the bone plate binding and restraining mechanism into the interiors of the two side fixing plates in sequence. Insert the end of the pure titanium tie away from the main bone plate member into the tie restraining block, and use the teeth inside the tie restraining block to couple with the blocks on the pure titanium tie, so as to realize pulling the main bone plate member and the auxiliary bone plate member closer to each other, thereby surrounding the bone with the main bone plate member and the auxiliary bone plate member. Connect the main bone plate member and the auxiliary bone plate member to the bone by using bone nails, achieving the effect of multi-directional fixation of the bone.
[0007] The auxiliary bone plate member includes a side fixing plate, a movable end head arranged at the front end of the side fixing plate, and two lengthened titanium bars fixed to the rear end of the movable end head. Two strip-shaped chambers are opened inside the front end of the side fixing plate, and the rear ends of the lengthened titanium bars are inserted into the interiors of the strip-shaped chambers. Countersunk bolts are screwed on the upper and lower surfaces of the side fixing plate, and the ends of the countersunk bolts close to each other penetrate into the strip-shaped chamber and contact the sides of the lengthened titanium bars away from each other; specific description: when it is necessary to increase the fixation range with the bone, loosen the countersunk bolts on the upper and lower surfaces of the side fixing plate, and pull out the movable end head and the lengthened titanium bars. After pulling out the lengthened titanium bars an appropriate distance outward inside the strip-shaped chamber, tighten the countersunk bolts again, so that the silicone blocks at the ends of the countersunk bolts are inserted into the grooves inside the lengthened titanium bars, realizing the fixation of the lengthened titanium bars, and increasing the fixation range of the bone by increasing the length of the auxiliary bone plate member.
[0008] A tie restraining block is fixed to the bone plate binding and restraining mechanism inside the side fixing plate, and the end of the pure titanium tie away from the bone plate body is inserted into the interior of the tie restraining block;
[0009] The bone plate binding and restraining mechanism includes an annular expansion frame, 4 strip-shaped bars fixed to the left and right side walls of the annular expansion frame, and a wedge block inserted into the inner cavity of the annular expansion frame. Openings are formed on the front and rear sides of the wedge block, and tapered chambers are arranged at the front and rear positions inside the wedge block, and rivets are inserted into the interiors of the tapered chambers. Specific description: when the bone plate binding and restraining mechanism is installed inside the main bone plate member or the auxiliary bone plate member, insert the annular expansion frame into the socket, and then insert the wedge block into the annular expansion frame. After the rivets are inserted into the tapered chambers, the wedge block expands outward relying on the openings, so that the annular expansion frame expands outward relying on the notches. At this time, the expanded annular expansion frame pushes the strip-shaped bars to couple and engage with the card slots inside the socket.
[0010] In the above technical solution of the combined bone plate for bone trauma, preferably: through holes for weight reduction are provided on the surfaces of the bone plate body, the bone plate head, the side fixing plate, and the movable end, and threads adapted to bone nails are provided inside the through holes.
[0011] In the above technical solution of the combined bone plate for bone trauma, preferably: sockets for inlaying and fixing the bone plate binding and retracting mechanism are provided inside the bone plate body and the side fixing plate, and clamping grooves for clamping and coupling with the clamping strips are provided on the left and right side walls of the inner cavity of the socket.
[0012] In the above technical solution of the combined bone plate for bone trauma, preferably: threaded holes for the countersunk bolts to penetrate and be screwed are provided on the upper surfaces of the side fixing plates, and silica gel blocks are rotatably connected to the ends of the countersunk bolts located in the inner cavity of the strip-shaped cavity.
[0013] In the above technical solution of the combined bone plate for bone trauma, preferably: a groove is provided on each of the opposite surfaces of the lengthened titanium strips, and the close ends of the silica gel blocks on the ends of the countersunk bolts are in close contact with the grooves inside the lengthened titanium strips.
[0014] In the above technical solution of the combined bone plate for bone trauma, preferably: the strip-shaped cavity and the lengthened titanium strips are symmetrically arranged up and down with the central axis of the side fixing plate as the reference line, and the outer surface corners of the bone plate body, the bone plate head, the side fixing plate, and the movable end are all chamfered into arcs.
[0015] In the above technical solution of the combined bone plate for bone trauma, preferably: notches are provided on both the front and back sides for the left and right sides of the annular expansion frame to deform inwards or outwards, and a cavity for the wedge block to be inserted is provided inside the annular expansion frame.
[0016] In the above technical solution of the combined bone plate for bone trauma, preferably: the spaces of the openings communicate with each other, the internal space of the conical cavity communicates with the internal space of the opening, the vertical cross-section of the conical cavity is trapezoidal, and the diameter of the upper port of the conical cavity is larger than the diameter of the lower port.
[0017] In the above technical solution of the combined bone plate for bone trauma, preferably: a convex block is fixed on the outer surface of the wedge block inside the main bone plate member, and one end of the pure titanium tie-rod away from the sub-bone plate member is fixedly connected to one end of the convex block away from the wedge block.
[0018] In the above-mentioned technical solution of a combined bone plate for bone trauma, preferably: a through hole for the pure titanium tie to pass through is opened inside the tie restraining block, and a latch is arranged inside the through hole; a row of latches engaged with the latch are arranged on the inner surface of the pure titanium tie, so as to allow the pure titanium tie to pass through the inside of the tie restraining block and then pull the main bone plate component and the auxiliary bone plate component closer to each other.
[0019] It can be seen from the above technical solutions that the present invention provides a combined bone plate for bone trauma. Compared with the prior art, the present invention has the following beneficial effects:
[0020] 1. The scheme of the present invention combines multiple groups of bone plates, allows the bone plates to surround the damaged bone part, and thus fix the bone in multiple directions. The binding and tightening mechanism allows the multiple groups of bone plates to be freely split or combined, and different bone setting methods can be selected according to the degree of bone injury, thereby increasing the application range and degree of freedom of the bone plates; 2. The scheme of the present invention allows the length of the bone plates to be adjustable, thereby achieving the effect of increasing or decreasing the fixing range according to the degree of bone injury. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces and describes the drawings required for use in the embodiments of the present invention or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0022] Figure 1 It is a schematic diagram of the overall structure of the combined bone plate;
[0023] Figure 2 A schematic diagram of a main bone plate;
[0024] Figure 3 is a schematic diagram of a bone plate connector;
[0025] Figure 4 is a schematic diagram of an auxiliary bone plate;
[0026] Figure 5 This is a schematic diagram of the auxiliary bone plate after cutting.
[0027] Attached Figure 1 -Attached Figure 5 The corresponding relationship of the parts is as follows:
[0028] 1. Main bone plate component; 11. Bone plate body; 12. Bone plate head; 13. Pure titanium tie; 2. Auxiliary bone plate component; 21. Side fixing plate; 22. Movable end; 23. Strip-shaped chamber; 24. Countersunk bolt; 25. Extended titanium bar; 3. Bone plate binding and restraining mechanism; 31. Ring-shaped expansion frame; 32. Card strip; 33. Notch; 34. Opening; 35. Conical chamber; 36. Rivet; 37. Convex block; 38. Wedge block; 4. Socket; 5. Tie restraining block. Detailed implementation manners
[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the embodiments described below are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present invention.
[0030] In order to make a clearer explanation and illustration of the technical solutions and implementation manners of the present invention, the following introduces the preferred specific embodiments for implementing the technical solutions of the present invention.
[0031] Embodiment; A preferred technical solution of a combined bone plate for bone trauma:
[0032] Refer to the attached specification Figure 1 As shown: It includes two main bone plate components 1 arranged up and down. Two auxiliary bone plate components 2 are arranged on the left and right sides of the main bone plate component 1. Three groups of bone plate binding and restraining mechanisms 3 are arranged between the main bone plate component 1 and the auxiliary bone plate component 2 respectively;
[0033] Refer to the attached specification Figure 2 As shown: The main bone plate component 1 includes a bone plate body 11, a bone plate head 12 integrally formed at the front end of the bone plate body 11, and a pure titanium tie 13 fixedly connected to the bone plate binding and restraining mechanism 3 inside the bone plate body 11;
[0034] Refer to the attached specification Figure 4 And the attached Figure 5As shown: The auxiliary bone plate member 2 includes a side fixing plate 21, a movable end 22 provided at the front end of the side fixing plate 21, and two lengthened titanium bars 25 fixed to the rear end of the movable end 22. Two strip-shaped chambers 23 are provided inside the front end of the side fixing plate 21. The rear end of the lengthened titanium bar 25 is inserted into the strip-shaped chamber 23. Countersunk bolts 24 are screwed on the upper and lower surfaces of the side fixing plate 21. The mutually approaching ends of the countersunk bolts 24 penetrate into the strip-shaped chamber 23 and contact the mutually distant side of the lengthened titanium bar 25; A tie strap receiving block 5 is fixed on the bone plate binding and receiving mechanism 3 inside the side fixing plate 21. One end of the pure titanium tie strap 13 away from the bone plate body 11 is inserted into the tie strap receiving block 5;
[0035] Refer to the attached Figure 3 As shown: The bone plate binding and receiving mechanism 3 includes an annular expansion frame 31, four clamping bars 32 fixed on the left and right side walls of the annular expansion frame 31, and a wedge block 38 inserted into the inner cavity of the annular expansion frame 31. Openings 34 are provided on the front and rear sides of the wedge block 38. Conical chambers 35 are provided at the front and rear positions inside the wedge block 38, and rivets 36 are inserted into the conical chambers 35.
[0036] Refer to the attached Figure 2 As shown: Through holes for weight reduction are provided on the surfaces of the bone plate body 11, the bone plate head 12, the side fixing plate 21, and the movable end 22, and threads adapted to bone nails are provided inside the through holes. Sockets 4 for embedding and fixing the bone plate binding and receiving mechanism 3 are provided inside the bone plate body 11 and the side fixing plate 21. Claw slots for clamping and coupling with the clamping bars 32 are provided on the left and right side walls of the inner cavity of the socket 4.
[0037] Refer to the attached Figure 4 and attached Figure 5 As shown: Threaded holes for the countersunk bolts 24 to penetrate and be screwed are provided on the upper surface of the side fixing plate 21. The ends of the countersunk bolts 24 located inside the strip-shaped chamber 23 are rotatably connected with silica gel blocks. A groove is provided on the mutually distant side surface of each of the lengthened titanium bars 25. The mutually approaching ends of the silica gel blocks on the ends of the countersunk bolts 24 are in close contact with the groove inside the lengthened titanium bar 25.
[0038] Refer to the attached Figure 4 and attached Figure 5 As shown: The strip-shaped chamber 23 and the lengthened titanium bar 25 are both arranged symmetrically in an up-and-down mirror image with the central axis of the side fixing plate 21 as the reference line. The outer surface corners of the bone plate body 11, the bone plate head 12, the side fixing plate 21, and the movable end 22 are all chamfered with arcs; Notches 33 are provided on the front and rear sides of the annular expansion frame 31 for the left and right sides of the annular expansion frame 31 to deform inwards or outwards. A cavity for inserting the wedge block 38 is provided inside the annular expansion frame 31.
[0039] Refer to the attached drawings of the specification Figure 3 As shown: The spaces of the openings 34 communicate with each other, the internal space of the conical chamber 35 communicates with the internal space of the openings 34, the vertical cross-section of the conical chamber 35 is trapezoidal, and the diameter of the upper port of the conical chamber 35 is larger than that of the lower port; on the outer surface of the wedge 38 inside the main bone plate member 1, a convex block 37 is fixed. One end of the pure titanium tie 13 far from the auxiliary bone plate member 2 is fixedly connected to one end of the convex block 37 far from the wedge 38. A through hole for the pure titanium tie 13 to pass through is provided inside the tie beam convergence block 5, and a row of teeth engaging with the teeth on the inner surface of the pure titanium tie 13 are provided inside the through hole. The pure titanium tie 13 is used to pull the main bone plate member 1 and the auxiliary bone plate member 2 closer to each other after passing through the inside of the tie beam convergence block 5.
[0040] Based on the above-described preferred technical solution content, the working process of this technical solution is described as follows:
[0041] Mirror-symmetrically fix the two bone plate bodies 11 and the bone plate heads 12 around the bone. At the same time, insert the bone plate binding and convergence mechanism 3 into the inside of the two bone plate bodies 11 in sequence. Then, place the auxiliary bone plate member 2 on the left and right sides of the main bone plate member 1, and insert the bone plate binding and convergence mechanism 3 into the inside of the two side fixing plates 21 in sequence. Insert one end of the pure titanium tie 13 far from the main bone plate member 1 into the inside of the tie beam convergence block 5, and use the teeth inside the tie beam convergence block 5 to couple with the blocks on the pure titanium tie 13 to realize pulling the main bone plate member 1 and the auxiliary bone plate member 2 closer to each other, so as to surround the bone with the main bone plate member 1 and the auxiliary bone plate member 2, and connect the main bone plate member 1 and the auxiliary bone plate member 2 to the bone by using bone nails, achieving the effect of multi-directional fixation of the bone.
[0042] When it is necessary to increase the fixation range with the bone, loosen the countersunk head bolts 24 on the upper and lower surfaces of the side fixing plate 21, and pull out the movable end 22 and the lengthened titanium bar 25. After pulling out the lengthened titanium bar 25 an appropriate distance outward inside the strip-shaped chamber 23, re-tighten the countersunk head bolts 24 so that the silica gel block at the end of the countersunk head bolt 24 is stuck into the groove inside the lengthened titanium bar 25 to realize the fixation of the lengthened titanium bar 25, and increase the fixation range of the bone by increasing the length of the auxiliary bone plate member 2.
[0043] When the bone plate binding and convergence mechanism 3 is installed inside the main bone plate member 1 or the auxiliary bone plate member 2, insert the annular expansion frame 31 into the socket 4, and then insert the wedge 38 into the annular expansion frame 31. After the rivet 36 is inserted into the conical chamber 35, the wedge 38 expands outward relying on the opening 34, so that the annular expansion frame 31 expands outward relying on the notch 33. At this time, the expanded annular expansion frame 31 pushes the strip 32 to couple and engage with the card slot inside the socket 4.
[0044] The present invention is not limited to the above-described preferred embodiments. Anyone should be aware that structural changes made under the inspiration of the present invention, as long as they have the same or similar technical solutions as the present invention, fall within the protection scope of the present invention. Finally, it should also be noted that the structures, proportions, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limiting conditions under which this application can be implemented. Therefore, they do not have any technical substantial meaning. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the efficacy that this application can produce and the purpose that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in this application.
Claims
1. A combined bone plate for bone trauma, comprising two main bone plate members (1) arranged one above the other, characterized in that: On the left and right sides of the main bone plate member (1), there are two sub-bone plate members (2), and there are 3 groups of bone plate binding and tightening mechanisms (3) between the main bone plate member (1) and the sub-bone plate members (2); The main bone plate member (1) includes a bone plate body (11), a bone plate head (12) integrally formed at the front end of the bone plate body (11), and a pure titanium tie (13) fixedly connected to the bone plate binding and tightening mechanism (3) inside the bone plate body (11); The sub-bone plate member (2) includes a side fixing plate (21), a movable end (22) provided at the front end of the side fixing plate (21), and two lengthened titanium bars (25) fixed to the rear end of the movable end (22). Two strip-shaped chambers (23) are opened inside the front end of the side fixing plate (21). The rear end of the lengthened titanium bar (25) is inserted into the strip-shaped chamber (23). Countersunk bolts (24) are screwed on the upper and lower surfaces of the side fixing plate (21). The mutually approaching ends of the countersunk bolts (24) penetrate into the strip-shaped chamber (23) and contact the mutually remote side of the lengthened titanium bar (25); A tie tightening block (5) is fixed on the bone plate binding and tightening mechanism (3) inside the side fixing plate (21), and the end of the pure titanium tie (13) away from the bone plate body (11) is inserted into the tie tightening block (5); The bone plate binding and tightening mechanism (3) includes an annular expansion frame (31), 4 clamping strips (32) fixed on the left and right side walls of the annular expansion frame (31), and a wedge block (38) inserted into the inner cavity of the annular expansion frame (31). Openings (34) are opened on the front and rear sides of the wedge block (38). Conical chambers (35) are arranged at the front and rear positions inside the wedge block (38), and rivets (36) are inserted into the conical chambers (35).
2. The modular bone plate for bone trauma according to claim 1, characterized in that: Through holes for weight reduction are opened on the surfaces of the bone plate body (11), the bone plate head (12), the side fixing plate (21), and the movable end (22), and threads adapted to bone nails are arranged inside the through holes.
3. The modular bone plate for bone trauma according to claim 1, characterized in that: Sockets (4) for embedding and fixing the bone plate binding and tightening mechanism (3) are opened inside the bone plate body (11) and the side fixing plate (21). Claw slots for clamping and coupling with the clamping strips (32) are opened on the left and right side walls of the inner cavity of the socket (4).
4. The modular bone plate for bone trauma according to claim 1, characterized in that: Threaded holes for the countersunk bolts (24) to penetrate and be screwed are opened on the upper surface of the side fixing plate (21), and silicone blocks are rotatably connected to the ends of the countersunk bolts (24) located inside the strip-shaped chamber (23).
5. A combined bone plate for bone trauma according to claim 1, characterized in that: A groove is opened on the mutually remote side surface of each lengthened titanium bar (25), and the mutually approaching ends of the silicone blocks at the ends of the countersunk bolts (24) are in close contact with the groove inside the lengthened titanium bar (25).
6. The modular bone plate for bone trauma according to claim 1, characterized in that: The strip-shaped chamber (23) and the lengthened titanium strip (25) are both arranged symmetrically up and down with the central axis of the side fixing plate (21) as the reference line, and the outer surface corners of the bone plate body (11), the bone plate head (12), the side fixing plate (21) and the movable end (22) are all chamfered with arcs.
7. The modular bone plate for bone trauma according to claim 1, characterized in that: Notches (33) are provided on both the front and rear sides of the annular expansion frame (31) for the left and right sides of the annular expansion frame (31) to deform inwards or outwards, and a cavity for inserting the wedge block (38) is provided inside the annular expansion frame (31).
8. A combined bone plate for bone trauma according to claim 1, characterized in that: The spaces of the openings (34) communicate with each other, the internal space of the conical chamber (35) communicates with the internal space of the openings (34), the vertical section of the conical chamber (35) is trapezoidal, and the diameter of the upper port of the conical chamber (35) is larger than the diameter of the lower port.
9. The modular bone plate for bone trauma according to claim 1, wherein: A convex block (37) is fixed on the outer surface of the wedge block (38) inside the main bone plate member (1), and one end of the pure titanium tie (13) far from the auxiliary bone plate member (2) is fixedly connected to one end of the convex block (37) far from the wedge block (38).
10. The modular bone plate for bone trauma according to claim 1, characterized in that: A through hole for the pure titanium tie (13) to pass through is provided inside the tie binding block (5), and teeth are provided inside the through hole. A row of blocks engaging with the teeth are provided on the inner surface of the pure titanium tie (13) for the pure titanium tie (13) to pull the main bone plate member (1) and the auxiliary bone plate member (2) closer to each other after passing through the inside of the tie binding block (5).