CN216148177U - Eye-splice type internal fixation implant - Google Patents
Eye-splice type internal fixation implant Download PDFInfo
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- CN216148177U CN216148177U CN202121995074.5U CN202121995074U CN216148177U CN 216148177 U CN216148177 U CN 216148177U CN 202121995074 U CN202121995074 U CN 202121995074U CN 216148177 U CN216148177 U CN 216148177U
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- nail
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- internal fixation
- buckle
- fixation implant
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Abstract
The utility model relates to the technical field of medical instruments and discloses a plug-in buckle type internal fixation implant which comprises a bone fracture plate and a plug-in buckle nail which are integrated, wherein a connecting hole is drilled in bone tissues, and the plug-in buckle nail can be inserted into the connecting hole to realize the fixed connection of the bone fracture plate and the bone tissues. Compared with the prior art, this inserted buckle formula internal fixation implant's coaptation board and inserted buckle nail make an organic whole and realize through the inserted buckle nail with the connection of bone tissue fixed, the coaptation board no longer sets up the nail hole of installation inserted buckle nail, no nail hole structure has reduced the cracked risk of coaptation board, the bulk strength of coaptation board with inserted buckle nail has been promoted, the fracture of screw or the not hard up condition in the past has been avoided taking place, this inserted buckle formula internal fixation implant design benefit, high structural strength, excellent in use effect.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to a plug-in type internal fixation implant.
Background
The traditional biomechanical system of internal fixation implants is the biomechanical system of bone plate, bone screw and bone tissue, wherein the bone plate usually has a plurality of screw holes, and the screw holes are mutually matched and extruded with the bone screw, so that the screw bears certain load, and the other load is transferred between bone blocks by implanting the screw into the bone tissue. In many cases, the failure of the internal fixation implant system is mainly caused by fracture of the nail hole of the bone plate, fracture of the contact position of the screw and the bone plate, loosening of the screw and the like. In most internal fixation of high stress bone, the fracture of the internal fixation implant is almost occurred at the nail hole of the bone plate closest to the fracture end, the structural strength is weakened due to the design of the circular ring with the nail hole at the bone plate, and meanwhile, the nail hole of the bone plate closest to the fracture end is often the stress concentration position through a great deal of finite element analysis and practical cases.
Based on the above drawbacks, a stable and reliable internal fixation implant is needed to ensure that the bone plate is not broken and an effective fixation connection between different bone tissues is achieved.
SUMMERY OF THE UTILITY MODEL
In order to solve the above technical problems, an object of the present invention is to provide a snap-in type internal fixation implant, which has the advantages of smart design, high structural strength, excellent fixation effect, etc.
Based on the structure, the utility model provides a plug-in buckle type internal fixation implant which comprises a bone fracture plate and a plug-in buckle nail, wherein the bone fracture plate and the plug-in buckle nail are integrated, a connecting hole matched with the plug-in buckle nail is drilled in bone tissues to be fixed, and the plug-in buckle nail can be inserted into the connecting hole and is fixedly connected with the bone tissues.
In some embodiments of the present application, one end of the insertion fastening nail far away from the bone fracture plate is provided with a first elastic sheet, the first elastic sheet is provided with a plurality of pieces in a lobe shape, one end of the first elastic sheet close to the bone fracture plate is unfolded outwards, and the connecting hole is in an inverted T-shaped arrangement.
In some embodiments of the present application, one end of the insertion fastening nail far away from the bone plate is connected with an implantation nail, the bottom of the implantation nail is provided with a thread section, and the implantation nail is inserted into the connecting hole and can be self-tapping drilled into the bone tissue through the thread section.
In some embodiments of this application, the one end that the inserted buckle nail kept away from the coaptation board is equipped with the second flexure strip, the second flexure strip is the lobe form and is equipped with the multi-disc, the second flexure strip is kept away from the one end of coaptation board is inwards shrunk, the top of implanting the nail is equipped with the connecting block, the connecting block is cylindrical setting just the top diameter of connecting block is greater than the bottom diameter of connecting block.
In some embodiments of the present application, a supporting block for supporting the second elastic piece is disposed in the second elastic piece.
In some embodiments of the present application, the number of the insertion fastening nails is two or more, and each of the insertion fastening nails is fixedly connected with the bone plate and integrated with the bone plate.
The embodiment of the utility model provides a buckle type internal fixation implant, which has the following beneficial effects compared with the prior art:
the utility model provides an internal fixation implant device, which comprises a bone fracture plate and a plug-in fastener which are integrated, wherein the bone fracture plate and the plug-in fastener are integrated and are connected and fixed with bone tissues through the plug-in fastener, the bone fracture plate is not provided with a nail hole for mounting the plug-in fastener, the risk of fracture of the bone fracture plate is reduced due to a nail hole-free structure, the integral strength of the bone fracture plate and the plug-in fastener is improved, and the condition that the conventional screw is fractured or loosened is avoided. The bone fracture plate and the inserting and buckling nails can be subjected to matched 3D printing and forming aiming at specific positions, so that the plastic bending time of the bone fracture plate in the operation can be greatly shortened, the accuracy of the operation is improved, and the method can be applied to the immediate implantation operation; in addition, the outer diameter of the inserted buckle nail is different from that of a traditional bone fracture plate, the size of the inner diameter of a nail hole is not limited, and the inserted buckle nail with a larger outer diameter can be designed, so that the inserted buckle nail has larger bending resistance and torsion resistance section coefficients, and the using effect is good.
Drawings
FIG. 1 is a schematic structural diagram of one embodiment of the present invention;
FIG. 2 is an assembly view of one embodiment of the present invention;
FIG. 3 is a schematic structural diagram of another embodiment of the present invention;
fig. 4 is an assembly view of another embodiment of the present invention.
In the drawings, 1, a bone fracture plate; 2. inserting a buckle nail; 21. a first elastic sheet; 22. a second elastic sheet; 23. a support block; 3. bone tissue; 31. connecting holes; 4. implanting a nail; 41. a threaded segment; 42. and (4) connecting the blocks.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.
It should be understood that the terms "front", "rear", and the like are used herein to describe various information, but the information should not be limited to these terms, which are used only to distinguish one type of information from another. For example, "front" information may also be referred to as "rear" information, and "rear" information may also be referred to as "front" information without departing from the scope of the present invention.
As shown in fig. 1 to 4, an embodiment of the present invention provides a plug-in fastener type internal fixation implant, which includes a bone plate 1 and a plug-in fastener 2, the bone plate 1 and the plug-in fastener 2 are integrated, a connection hole 31 is drilled in a bone tissue 3 to be fixed, and the plug-in fastener 2 can be inserted into the connection hole 31 to realize the fixed connection between the bone plate 1 and the bone tissue 3. Based on above-mentioned structure, this inserted fastener formula internal fixation implant's coaptation board 1 makes integratively with inserted fastener 2 and realizes fixedly being connected with osseous tissue 3 through inserted fastener 2, and coaptation board 1 no longer sets up the nail hole of installation inserted fastener 2, and no nail hole structure has reduced the cracked risk of coaptation board 1, has promoted coaptation board 1 and inserted fastener 2's bulk strength, has avoided the fracture of screw or the not hard up condition in the past to take place. The bone fracture plate 1 and the inserting and buckling nails 2 can be subjected to matched 3D printing and forming aiming at specific positions, so that the plastic bending time of the bone fracture plate 1 in the operation can be greatly shortened, the accuracy of the operation is improved, and the method can be applied to the immediate implantation operation; in addition, the design of the outer diameter of the inserted buckle nail 2 is different from that of the traditional bone fracture plate 1, the size of the inner diameter of the nail hole is not limited, and the inserted buckle nail 2 with larger outer diameter can be designed, so that the inserted buckle nail 2 has larger bending resistance and torsion resistance section coefficients and good use effect.
As for the connection manner of the insertion fastening nail 2 and the bone tissue 3, in particular, in some embodiments of the present application, the end of the insertion fastening nail 2 away from the bone plate 1 is provided with a first elastic sheet 21, the first elastic sheet 21 is provided with a plurality of pieces in a lobe shape, each first elastic sheet 21 is unfolded toward the bone plate 1, and the connection hole 31 is arranged in an inverted T shape. Specifically, firstly, a drill matched with the diameter of the inserted fastening nail 2 is adopted to drill the bone tissue 3, the hole depth is 7-8 mm (the length of the inserted fastening nail 2 is preferably 5-6 mm generally, and the hole depth of the connecting hole 31 needs to be larger than the length of the inserted fastening nail 2), and then a matched small-bore boring cutter is selected to further expand the connecting hole 31, so that the bottom hole diameter is larger than the top hole diameter. Before the insertion buckle nail 2 is inserted into the connecting hole 31, the first elastic sheet 21 is in an outward expansion state, along with the continuous insertion of the insertion buckle nail 2, the first elastic sheet 21 is also in a compression state along with the compression, and the outward expansion state is recovered until the first elastic sheet 21 is pressed into the bottom of the connecting hole 31 with a larger aperture, the expanded elastic sheet is clamped into the connecting hole 31, the insertion buckle nail 2 is prevented from sliding out, the fixation of the bone fracture plate 1 and the insertion buckle nail 2 with the bone tissue 3 is realized, meanwhile, the connection mode allows the insertion buckle nail 2 to have axial micro motion relative to the bone tissue 3, and the use effect is good.
Of course, the plug pins 2 and the connecting holes 31 in the present application have various other connecting manners, specifically, as shown in the figures, in other embodiments of the present application, the end of the plug pins 2 away from the bone plate 1 is connected with the implantation pin 4, and one end of the implantation pin 4 is provided with a thread, which can be self-tapping drilled into the bone tissue 3 to fix the bone tissue 3, thereby fixing the plug pins 2 and the bone plate 1 to the bone tissue 3. Further, regarding the connection mode of the implantation nail 4 and the insertion nail 2, in this embodiment, one end of the insertion nail 2 away from the bone plate 1 is provided with the second elastic piece 22, the second elastic piece 22 contracts inwards, meanwhile, the supporting block 23 is arranged at the contraction position of the second elastic piece 22, one end of the implantation nail 4 away from the threaded section 41 is provided with the cylindrical connection block 42, wherein the diameter of the top of the connection block 42 is larger than that of the bottom of the connection block 42, and the whole connection block 42 is arranged in a T shape. For the embodiment, the insertion fastening nail 2 needs to drill the bone tissue 3 before insertion, and firstly, a drill bit matched with the diameter of the insertion fastening nail 2 is used to drill the bone tissue 3 with a hole depth of 7-8 mm (the length of the insertion fastening nail 2 is preferably 5-6 mm, and the hole depth of the connecting hole 31 needs to be larger than the length of the insertion fastening nail 2), and the implantation nail 4 is self-tapping drilled into the bone tissue 3 on the bottom surface of the drilled nail hole, so as to complete the fixation of the implantation nail 4. After the bone plate 1 is prepared, the supporting blocks 23 are embedded between the second elastic pieces 22 through auxiliary instruments, and the expanded outer diameter of the second elastic pieces 22 is consistent with the outer diameter of the insert pins 2. Insert the pintle 2 and insert connecting hole 31 afterwards, implant between the cylinder embedding second flexure strip 22 of nail 4 upper segment, extrude supporting shoe 23 inwards gradually, it is downthehole to press in the nail completely until pintle 2, implant the big diameter section of nail 4 upper end connecting block 42 and the big aperture section of supporting shoe 23 embedding second flexure strip 22 this moment, the tail section of second flexure strip 22 inwards compresses the little diameter section of laminating in connecting block 42, simultaneously because the big diameter section of connecting block 42 is greater than little diameter section, realize spacing to the coaptation board 1, thereby realize 1 and the fixed connection of pintle 2 and implantation nail 4.
Optionally, in some embodiments of the present application, there are generally more than two insertion fasteners 2 connected to the same bone plate 1, each insertion fastener 2 is inserted into different bone tissues 3 to fix the bone tissues 3, and each insertion fastener 2 is integrated with the bone plate 1 to ensure the structural strength of the bone plate 1.
In summary, the present invention provides a plug-in fastener type internal fixation implant, which comprises a bone plate and a plug-in fastener integrated together, wherein a connection hole is drilled in a bone tissue, and the plug-in fastener can be inserted into the connection hole to realize the fixed connection between the bone plate and the bone tissue. Compared with the prior art, this inserted buckle formula internal fixation implant's coaptation board and inserted buckle nail make an organic whole and realize through the inserted buckle nail with the connection of bone tissue fixed, the coaptation board no longer sets up the nail hole of installation inserted buckle nail, no nail hole structure has reduced the cracked risk of coaptation board, the bulk strength of coaptation board with inserted buckle nail has been promoted, the fracture of screw or the not hard up condition in the past has been avoided taking place, this inserted buckle formula internal fixation implant design benefit, high structural strength, excellent in use effect.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (6)
1. The insertion-buckling type internal fixation implant is characterized by comprising a bone plate and insertion-buckling nails, wherein the bone plate and the insertion-buckling nails are integrated, connecting holes matched with the insertion-buckling nails are drilled in bone tissues to be fixed, and the insertion-buckling nails can be inserted into the connecting holes and are fixedly connected with the bone tissues.
2. The snap-fit type internal fixation implant as claimed in claim 1, wherein the end of the snap-fit nail away from the bone plate is provided with a first elastic sheet, the first elastic sheet is provided with a plurality of pieces in a lobe shape, one end of the first elastic sheet close to the bone plate is flared, and the connecting hole is provided in an inverted T shape.
3. The snap-fit internal fixation implant of claim 1, wherein an implant nail is connected to an end of the snap-fit nail away from the bone plate, and a threaded section is provided at a bottom of the implant nail, and the implant nail is inserted into the connecting hole and can be self-tapping drilled into the bone tissue through the threaded section.
4. The eye-splice type internal fixation implant as claimed in claim 3, wherein a second elastic piece is provided at an end of the eye-splice nail away from the bone plate, the second elastic piece has a plurality of pieces in a lobe shape, an end of the second elastic piece away from the bone plate is contracted inward, a connecting block is provided at a top of the eye-splice nail, the connecting block is arranged in a cylindrical shape, and a top diameter of the connecting block is larger than a bottom diameter of the connecting block.
5. The snap-fit internal fixation implant of claim 4, wherein a support block is provided in the second resilient piece for spreading the second resilient piece.
6. The snap-fit internal fixation implant of claim 1, wherein there are more than two of the snap-fit pegs, each of the snap-fit pegs being fixedly connected to and integral with the bone plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121995074.5U CN216148177U (en) | 2021-08-23 | 2021-08-23 | Eye-splice type internal fixation implant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121995074.5U CN216148177U (en) | 2021-08-23 | 2021-08-23 | Eye-splice type internal fixation implant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216148177U true CN216148177U (en) | 2022-04-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121995074.5U Active CN216148177U (en) | 2021-08-23 | 2021-08-23 | Eye-splice type internal fixation implant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216148177U (en) |
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2021
- 2021-08-23 CN CN202121995074.5U patent/CN216148177U/en active Active
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Address after: 528299 unit 602, 6th floor, building a, Jingu photoelectric industry community, No. 1, Yongan North Road, Pingzhou, Guicheng Street, Nanhai District, Foshan City, Guangdong Province Patentee after: Guangdong Zhongke Anchi Biotechnology Co.,Ltd. Address before: 528299 unit 602, 6th floor, building a, Jingu photoelectric industry community, No. 1, Yongan North Road, Pingzhou, Guicheng Street, Nanhai District, Foshan City, Guangdong Province Patentee before: FOSHAN ANGELS BIOTECHNOLOGY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |