阅读说明：本技术 一种插扣式接骨板 (Eye-splice type bone fracture plate ) 是由 张碧涛 张春雨 陈贤帅 于 2021-08-23 设计创作，主要内容包括：本发明涉及医疗器械技术领域,公开了一种插扣式接骨板,其包括配套使用的接骨板本体和定位导板,接骨板本体上设有插扣钉,插扣钉与接骨板本体设为一体,定位导板上设有与插扣钉相匹配的定位孔,接骨板本体上还设有第一螺钉孔,定位导板上同样设有与第一螺钉孔相匹配的第二螺钉孔。与现有技术相比,该插扣式接骨板将接骨板本体与插扣钉设为一体,避免了接骨板本体在受力位置的钻孔操作,无钉孔的设计提升了接骨板的结构强度,使其具有更大的抗弯、抗扭截面系数,极大改善内固定系统的力学性能,降低了近骨折端处接骨板断裂的风险,定位导板的设置提升了接骨板本体的安装精度,使用效果好。(The invention relates to the technical field of medical instruments and discloses a plug-in type bone fracture plate which comprises a bone fracture plate body and a positioning guide plate, wherein the bone fracture plate body and the positioning guide plate are matched for use, a plug-in fastener is arranged on the bone fracture plate body, the plug-in fastener and the bone fracture plate body are integrated, a positioning hole matched with the plug-in fastener is formed in the positioning guide plate, a first screw hole is further formed in the bone fracture plate body, and a second screw hole matched with the first screw hole is also formed in the positioning guide plate. Compared with the prior art, this eye-splice formula coaptation board establishes the coaptation board body and eye-splice nail as an organic whole, has avoided the drilling operation of coaptation board body in the stress position, and the design of no nail hole has promoted the structural strength of coaptation board, makes it have bigger bending resistance, anti-torque section coefficient, greatly improves internal fixation system's mechanical properties, has reduced nearly fracture department's fracture department fracture's cracked risk of coaptation board, and the setting of location baffle has promoted the installation accuracy of coaptation board body, excellent in use effect.)

1. The insertion buckle type bone fracture plate is characterized by comprising a bone fracture plate body and a positioning guide plate, wherein insertion buckle nails are arranged on the bone fracture plate body, the bone fracture plate body and the insertion buckle nails are integrated, and positioning holes matched with the insertion buckle nails are arranged on the positioning guide plate.

2. The eye-splice bone plate of claim 1 wherein the positioning guide has a temporary retaining hole for fixing the positioning guide to bone tissue.

3. The eye-splice bone plate of claim 2 wherein there are more than two temporary retaining holes.

4. The eye-splice bone plate of claim 1 wherein the bone plate body is provided with a first screw hole for receiving a bone screw, the first screw hole being provided with more than two.

5. The eye-splice bone plate of claim 4 wherein the positioning guide plate is provided with second screw holes matching with the first screw holes, and the number of the second screw holes is equal to that of the first screw holes.

6. The eye-splice bone plate of claim 1 wherein there are more than two eye-splices and each eye-splices is integrated with the bone plate body, and the number of the positioning holes on the positioning guide plate is the same as the number of the eye-splices.

Technical Field

The invention relates to the technical field of medical instruments, in particular to a plug-in type bone fracture plate.

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 bone fracture plate is needed to achieve an effective fixation connection between different pieces of bone tissue.

Disclosure of Invention

In order to solve the technical problems, the invention aims to provide a buckle type bone fracture plate which has the advantages of ingenious design, high structural strength, excellent fixing effect and the like.

Based on the structure, the invention provides a plug-in type bone fracture plate which comprises a bone fracture plate body and a positioning guide plate, wherein plug-in fasteners are arranged on the bone fracture plate body, the bone fracture plate body and the plug-in fasteners are integrated, and positioning holes matched with the plug-in fasteners are arranged on the positioning guide plate.

In some embodiments of the present application, the positioning guide is provided with a temporary limiting hole for fixing the positioning guide on bone tissue.

In some embodiments of the present application, the number of the temporary limiting holes is two or more.

In some embodiments of the present application, the bone plate body is provided with a first screw hole for installing a bone screw, and the first screw hole is provided with more than two.

In some embodiments of the present application, the positioning guide plate is provided with second screw holes matched with the first screw holes, and the number of the second screw holes is equal to that of the first screw holes.

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 integrated with the bone fracture plate body, and the number of the positioning holes on the positioning guide plate is consistent with the number of the insertion fastening nails.

The embodiment of the invention provides a plug-in type bone fracture plate, which has the beneficial effects that compared with the prior art:

the invention provides a plug-in type bone fracture plate which comprises a bone fracture plate body and a positioning guide plate, wherein plug-in fasteners integrated with the bone fracture plate body are arranged on the bone fracture plate body, and positioning holes matched with the plug-in fasteners are arranged on the positioning guide plate. The bone fracture plate body and the inserting and buckling nails are integrated based on the 3D printing technology, nail holes are not needed at the stress position of the bone fracture plate body, the design without the nail holes can enable the bone fracture plate to have larger bending resistance and torsion resistance section coefficients, the mechanical property of an internal fixing system is greatly improved, and the risk that the bone fracture plate is broken at the position close to a fracture end is reduced; the inserting and buckling nails are in interference fit with the bone tissues, so that the inserting and buckling nails are stably and reasonably fixed in the bone tissues, complete constraint of the bone tissues on the inserting and buckling type bone fracture plate is realized, and the structure is simple and reliable; the setting of location baffle can further promote the installation accuracy of coaptation board body, excellent in use effect.

Drawings

Fig. 1 is a schematic structural view of a snap-in bone plate according to an embodiment of the present invention.

In the drawings, 1, a bone fracture plate body; 11. a first screw hole; 2. inserting a buckle nail; 3. positioning the guide plate; 31. positioning holes; 32. a temporary limiting hole; 33. a second screw hole.

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 invention but are not intended to limit the scope of the invention.

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, an embodiment of the present invention provides a plug-in type bone fracture plate, which includes a bone fracture plate body 1 and a positioning guide plate 3, the bone fracture plate body 1 is provided with two or more plug-in fasteners 2, the bone fracture plate body 1 and the plug-in fasteners 2 are integrated, the positioning guide plate 3 is provided with a positioning hole 31 matched with the plug-in fasteners 2, and the positioning guide plate 3 is used in cooperation with the bone fracture plate body 1 to confirm the position of a connecting hole matched with the plug-in fasteners 2 on bone tissues. Specifically, a small hole is drilled at each of two ends of a bone fracture line of bone tissues to be connected at the front edge at a non-fixed position, after the bone fracture block is reset, a holding clamp is used for holding two small holes to position the bone block, meanwhile, a positioning guide plate 3 is held to be attached to the two small holes, then, the positioning guide plate 3 is drilled to form two temporary limiting holes 32 corresponding to the small holes one by one, then, two kirschner wires penetrate into the temporary limiting holes 32, the positioning guide plate 3 is temporarily fixed to temporarily restore the stability of the positioning guide plate, the kirschner wires are inserted near the bone fracture line, the mutual interference between the bone fracture screws and the inserting and buckling nails 2 can be prevented, the corresponding drilling positions are also determined after the positioning guide plate 3 is connected with the two bone tissues, and then, a connecting hole is drilled in the bone tissues according to the position of a positioning hole 31 on the positioning guide plate 3 by using a drill with a ranging drill. After the drilling operation is completed, the positioning guide plate 3 is taken down, the fragments in the hole are cleaned, then, the inserting buckling nails 2 on the bone fracture plate body 1 are inserted and buckled into the connecting holes along the central shaft direction of the connecting holes, the inserting buckling nails 2 are in interference fit with the connecting holes in the bone tissues, and the inserting buckling nails 2 are fixed in the bone tissues to realize the fixed connection of the bone fracture plate and the bone tissues.

Based on the structure, the bone fracture plate body 1 and the inserting and buckling nails 2 are integrated based on the 3D printing technology, nail holes are not needed at the stress position of the bone fracture plate body 1, the design without the nail holes can enable the bone fracture plate to have larger bending resistance and torsion resistance section coefficients, the mechanical property of an internal fixing system is greatly improved, and the risk that the bone fracture plate at the position close to the fracture end is fractured is reduced; the inserting and buckling nail 2 is in interference fit with the bone tissue, so that the inserting and buckling nail 2 is stably and reasonably fixed in the bone tissue, the complete constraint of the bone tissue on the inserting and buckling type bone fracture plate is realized, and the structure is simple and reliable; the positioning guide plate 3 can further improve the installation precision of the bone fracture plate body 1, and the using effect is good.

It should be noted that, in order to ensure the fixing effect, the number of the insert pins 2 may be set to be more than two, and of course, each insert pin 2 is integrated with the bone plate body 1. Correspondingly, the positioning guide plate 3 is provided with the same number of positioning holes 31, and each positioning hole 31 corresponds to each inserting buckle nail 2 one by one.

Optionally, for the bone fracture plate body 1, in order to ensure that the stressed portion is not broken and integrated with the bayonet nail 2, for the portion of the bone fracture plate body 1 with smaller stress, the bone fracture plate body 1 may also be designed in the past, that is, a screw hole is provided, and the bone fracture plate body is fixedly connected with the bone tissue through a bone screw. Therefore, as shown in fig. 1, in some embodiments of the present application, the bone plate body 1 is further provided with a plurality of first screw holes 11 for setting bone screws, and correspondingly, the positioning guide plate 3 is provided with a same number of second screw holes 33, and each second screw hole 33 corresponds to each first screw hole 11 one by one. When the connecting hole is drilled through the Kirschner wire fixing and positioning guide plate 3, the position of a third screw hole in the bone tissue can be confirmed through the second screw hole 33, and a third screw hole matched with the first screw hole 11 is drilled through the drill bit, and the bone screw penetrates through the first screw hole 11 and is fixed in the third screw hole, so that the fixing effect between the bone fracture plate and the bone tissue can be further improved.

In summary, the invention provides a plug-in type bone fracture plate, which comprises a bone fracture plate body and a positioning guide plate, wherein the bone fracture plate body and the positioning guide plate are matched for use, a plug-in fastener is arranged on the bone fracture plate body, the plug-in fastener and the bone fracture plate body are integrated, a positioning hole matched with the plug-in fastener is arranged on the positioning guide plate, a first screw hole is also arranged on the bone fracture plate body, and a second screw hole matched with the first screw hole is also arranged on the positioning guide plate. Compared with the prior art, this eye-splice formula coaptation board establishes the coaptation board body and eye-splice nail as an organic whole, has avoided the drilling operation of coaptation board body in the stress position, and the design of no nail hole has promoted the structural strength of coaptation board, makes it have bigger bending resistance, anti-torque section coefficient, greatly improves internal fixation system's mechanical properties, has reduced nearly fracture department's fracture department fracture's cracked risk of coaptation board, and the setting of location baffle has promoted the installation accuracy of coaptation board body, 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.