CN204765888U - Metal meets bone screw - Google Patents
Metal meets bone screw Download PDFInfo
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- CN204765888U CN204765888U CN201520457087.5U CN201520457087U CN204765888U CN 204765888 U CN204765888 U CN 204765888U CN 201520457087 U CN201520457087 U CN 201520457087U CN 204765888 U CN204765888 U CN 204765888U
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Abstract
本实用新型提供了一种金属接骨螺钉，属于骨科用医疗器械领域，包括钉体和钉头，钉体由锥形结构的钉体前段、钉体中段和钉体后段构成，钉体前段、钉体中段和钉体后段的连接处为圆弧面，钉体后段与钉头相连，钉体前段、钉体中段和钉体后段的锥角依次减小，钉体前段、钉体中段和钉体后段上分别设有前段螺纹、中段螺纹和后段螺纹，前段螺纹、中段螺纹和后段螺纹的螺距依次减小。本实用新型结构简单，设计合理，采用钉体前段、钉体中段和钉体后段的结构，并且三段结构的锥角和螺距不同，固定时接骨螺钉不易松动，骨折固定的可靠性高，减少了骨折的愈合时间，操作简单，手术的成功率高。
The utility model provides a metal bone screw, which belongs to the field of orthopedic medical devices, and comprises a nail body and a nail head. The connection between the middle section of the nail body and the rear section of the nail body is an arc surface, the rear section of the nail body is connected with the nail head, the taper angles of the front section of the nail body, the middle section of the nail body and the rear section of the nail body decrease in turn, the front section of the nail body, the nail body The middle section and the rear section of the nail body are respectively provided with a front section thread, a middle section thread and a rear section thread, and the pitches of the front section thread, the middle section thread and the back section thread decrease successively. The utility model is simple in structure and reasonable in design. It adopts the structure of the front section of the nail body, the middle section of the nail body and the rear section of the nail body, and the cone angles and pitches of the three-section structures are different. The bone screw is not easy to loosen during fixation, and the reliability of fracture fixation is high. The healing time of the fracture is reduced, the operation is simple, and the success rate of the operation is high.
Description
技术领域technical field
本实用新型涉及骨科用医疗器械领域，具体是一种金属接骨螺钉。The utility model relates to the field of orthopedic medical instruments, in particular to a metal bone screw.
背景技术Background technique
在骨科手术中，往往需要利用接骨板和接骨螺钉对骨折部位实施固定。现有的接骨螺钉的钉体大部分是带有螺纹的圆柱形或圆锥形结构，这些接骨螺钉对骨折部位进行固定时容易出现接骨螺钉松动，降低了骨折固定的可靠性，从而延长了骨折的愈合时间，手术的成功率较低。为了解决上述问题，还有些将接骨板螺钉的结构变得较为复杂，医院的骨科手术中也常常会运用这些结构较为复杂的接骨螺钉将折断的骨头连接起来，然而结构复杂的螺钉不但不容易安装，而且也不容易卸下，增加了操作难度。In orthopedic surgery, it is often necessary to use bone plates and bone screws to fix the fracture site. Most of the nail bodies of the existing bone screws are threaded cylindrical or conical structures. When these bone screws fix the fracture site, the bone screws are prone to loosening, which reduces the reliability of fracture fixation and prolongs the fracture. Healing time, surgery has a lower success rate. In order to solve the above problems, some bone plate screws have become more complex in structure. These bone screws with more complex structures are often used in hospital orthopedic surgery to connect broken bones. However, screws with complex structures are not only difficult to install. , and it is not easy to remove, which increases the difficulty of operation.
发明内容Contents of the invention
本实用新型要解决的问题是：克服现有技术的不足，提供一种结构简单，设计合理，操作简单，固定时接骨螺钉不易松动，骨折固定的可靠性高，减少了骨折的愈合时间，手术的成功率高的金属接骨螺钉。The problem to be solved by the utility model is: to overcome the deficiencies of the prior art, to provide a simple structure, reasonable design, simple operation, the bone screw is not easy to loosen during fixation, the reliability of fracture fixation is high, the healing time of fracture is reduced, and the operation The high success rate of metal bone screws.
为解决上述技术问题，本实用新型采用的技术方案是：一种金属接骨螺钉，包括钉体和钉头，所述钉体由锥形结构的钉体前段、钉体中段和钉体后段构成，所述钉体前段、钉体中段和钉体后段的连接处为圆弧面，所述钉体后段与钉头相连，所述钉体前段、钉体中段和钉体后段的锥角依次减小，所述钉体前段、钉体中段和钉体后段上分别设有前段螺纹、中段螺纹和后段螺纹，所述前段螺纹、中段螺纹和后段螺纹的螺距依次减小。In order to solve the above technical problems, the technical solution adopted by the utility model is: a metal bone screw, including a nail body and a nail head, and the nail body is composed of a front section of the nail body, a middle section of the nail body and a rear section of the nail body in a tapered structure , the connection between the front section of the nail body, the middle section of the nail body and the rear section of the nail body is an arc surface, the rear section of the nail body is connected with the nail head, and the cone of the front section of the nail body, the middle section of the nail body and the rear section of the nail body The angle decreases successively, and the front section, the middle section of the nail body and the rear section of the nail body are respectively provided with a front section thread, a middle section thread and a back section thread, and the pitches of the front section thread, the middle section thread and the back section thread decrease successively.
进一步地，所述钉头为球形的。Further, the nail head is spherical.
进一步地，所述钉头的顶部中心处开有一凹槽。Further, a groove is formed at the center of the top of the nail head.
进一步地，所述凹槽为四边形、六边形、十字形或梅花形。Further, the groove is quadrilateral, hexagonal, cross or quincunx.
进一步地，所述钉体前段的锥角为45-60°。Further, the taper angle of the front section of the nail body is 45-60°.
进一步地，所述钉体中段的锥角为25-40°。Further, the taper angle of the middle section of the nail body is 25-40°.
进一步地，所述钉体前段的锥角为10-20°。Further, the taper angle of the front section of the nail body is 10-20°.
进一步地，所述钉体和钉头的材质为Ti-6Al-4V、Ti-6Al-7Nb或00Cr18Ni14Mo3。Further, the material of the nail body and nail head is Ti-6Al-4V, Ti-6Al-7Nb or 00Cr18Ni14Mo3.
本实用新型具有的优点和积极效果是：The advantages and positive effects that the utility model has are:
本实用新型结构简单，设计合理，采用钉体前段、钉体中段和钉体后段的结构，并且三段结构的锥角和螺距不同，固定时接骨螺钉不易松动，骨折固定的可靠性高，减少了骨折的愈合时间，操作简单，手术的成功率高。The utility model is simple in structure and reasonable in design. It adopts the structure of the front section of the nail body, the middle section of the nail body and the rear section of the nail body, and the cone angles and pitches of the three-section structures are different. The bone screw is not easy to loosen during fixation, and the reliability of fracture fixation is high. The healing time of the fracture is reduced, the operation is simple, and the success rate of the operation is high.
附图说明Description of drawings
图1是实施例一的结构示意图。Figure 1 is a schematic structural view of Embodiment 1.
图2是实施例一的钉头的结构示意图。Fig. 2 is a schematic structural view of the nail head of the first embodiment.
图3是实施例二的钉头的结构示意图。Fig. 3 is a structural schematic diagram of the nail head of the second embodiment.
图4是实施例三的钉头的结构示意图。Fig. 4 is a schematic structural view of the nail head of the third embodiment.
图中：1、钉体；2、钉头；3、钉体前段；4、钉体中段；5、钉体后段；6、前段螺纹；7、中段螺纹；8、后段螺纹；9、凹槽。In the figure: 1, nail body; 2, nail head; 3, front section of nail body; 4, middle section of nail body; 5, back section of nail body; 6, front thread; 7, middle thread; 8, back thread; 9, groove.
具体实施方式Detailed ways
实施例一Embodiment one
如图1、2所示，一种金属接骨螺钉，包括钉体1和球形的钉头2，钉体1和钉头2的材质为Ti-6Al-4V，钉体1由锥形结构的钉体前段3、钉体中段4和钉体后段5构成，钉体前段3、钉体中段4和钉体后段5的连接处为圆弧面，钉体后段5与钉头2相连，钉体前段3、钉体中段4和钉体后段5的锥角依次减小，钉体前段3的锥角为45°，钉体中段4的锥角为25°，钉体前段5的锥角为10°，钉体前段3、钉体中段4和钉体后段5上分别设有前段螺纹6、中段螺纹7和后段螺纹8，前段螺纹6、中段螺纹7和后段螺纹8的螺距依次减小，钉头2的顶部中心处开有一六边形凹槽9。As shown in Figures 1 and 2, a metal bone screw includes a nail body 1 and a spherical nail head 2. The material of the nail body 1 and the nail head 2 is Ti-6Al-4V, and the nail body 1 is made of a nail with a conical structure. The front section 3 of the nail body, the middle section 4 of the nail body and the rear section 5 of the nail body are composed of the front section 3 of the nail body, the middle section 4 of the nail body and the rear section 5 of the nail body. The cone angles of the front section 3 of the nail body, the middle section 4 of the nail body and the rear section 5 of the nail body decrease successively. The angle is 10°, the front section 3 of the nail body, the middle section 4 of the nail body and the rear section 5 of the nail body are respectively provided with front thread 6, middle thread 7 and rear thread 8, and front thread 6, middle thread 7 and rear thread 8 The pitch decreases successively, and there is a hexagonal groove 9 at the center of the top of the nail head 2 .
本实施例的工作过程：使用时，将钉体1的钉体前端3、钉体中段4和钉体后端5先后旋入人体骨骼，由于钉体前段3、钉体中段4和钉体后段5的锥角依次减小，并且三段结构的锥角和螺距不同，固定时接骨螺钉不易松动，骨折固定的可靠性高，减少了骨折的愈合时间，操作简单，手术的成功率高。The working process of this embodiment: when in use, the nail body front end 3, the nail body middle section 4 and the nail body rear end 5 of the nail body 1 are successively screwed into the human skeleton, because the nail body front section 3, the nail body middle section 4 and the nail body rear The taper angles of segment 5 decrease in turn, and the taper angles and pitches of the three segments are different, the bone screws are not easy to loosen during fixation, the reliability of fracture fixation is high, the healing time of fractures is shortened, the operation is simple, and the success rate of surgery is high.
实施例二Embodiment two
如图3所示，一种金属接骨螺钉，包括钉体1和球形的钉头2，钉体1和钉头2的材质为Ti-6Al-7Nb，钉体1由锥形结构的钉体前段3、钉体中段4和钉体后段5构成，钉体前段3、钉体中段4和钉体后段5的连接处为圆弧面，钉体后段5与钉头2相连，钉体前段3、钉体中段4和钉体后段5的锥角依次减小，钉体前段3的锥角为50°，钉体中段4的锥角为30°，钉体前段5的锥角为15°，钉体前段3、钉体中段4和钉体后段5上分别设有前段螺纹6、中段螺纹7和后段螺纹8，前段螺纹6、中段螺纹7和后段螺纹8的螺距依次减小，钉头2的顶部中心处开有一十字形凹槽9。As shown in Figure 3, a metal bone screw includes a nail body 1 and a spherical nail head 2. The material of the nail body 1 and the nail head 2 is Ti-6Al-7Nb. 3. The middle section 4 of the nail body and the rear section 5 of the nail body are formed. The connection of the front section 3 of the nail body, the middle section 4 of the nail body and the rear section 5 of the nail body is an arc surface, the rear section 5 of the nail body is connected with the nail head 2, and the nail body The cone angles of front section 3, nail body middle section 4 and nail body rear section 5 decrease successively, the cone angle of nail body front section 3 is 50°, the cone angle of nail body middle section 4 is 30°, and the cone angle of nail body front section 5 is 15°, the front section 3 of the nail body, the middle section 4 of the nail body and the rear section 5 of the nail body are respectively provided with a front section thread 6, a middle section thread 7 and a rear section thread 8, and the pitches of the front section thread 6, the middle section thread 7 and the back section thread 8 are in order Reduced, there is a cross-shaped groove 9 at the center of the top of the nail head 2.
本实施例的工作过程：同实施例一。The working process of the present embodiment: the same as embodiment one.
实施例三Embodiment three
如图4所示，一种金属接骨螺钉，包括钉体1和球形的钉头2，钉体1和钉头2的材质为00Cr18Ni14Mo3，钉体1由锥形结构的钉体前段3、钉体中段4和钉体后段5构成，钉体前段3、钉体中段4和钉体后段5的连接处为圆弧面，钉体后段5与钉头2相连，钉体前段3、钉体中段4和钉体后段5的锥角依次减小，钉体前段3的锥角为60°，钉体中段4的锥角为40°，钉体前段5的锥角为20°，钉体前段3、钉体中段4和钉体后段5上分别设有前段螺纹6、中段螺纹7和后段螺纹8，前段螺纹6、中段螺纹7和后段螺纹8的螺距依次减小，钉头2的顶部中心处开有一四边形凹槽9。As shown in Figure 4, a metal bone screw includes a nail body 1 and a spherical nail head 2. The material of the nail body 1 and the nail head 2 is 00Cr18Ni14Mo3. The middle section 4 and the rear section 5 of the nail body are formed; The cone angles of the middle section 4 of the nail body and the rear section 5 of the nail body decrease successively. The front section 3 of the nail body, the middle section 4 of the nail body and the rear section 5 of the nail body are respectively provided with a front section thread 6, a middle section thread 7 and a rear section thread 8, and the pitches of the front section thread 6, the middle section thread 7 and the back section thread 8 decrease successively, and the nail There is a quadrilateral groove 9 at the center of the top of the head 2 .
本实施例的工作过程：同实施例一。The working process of the present embodiment: the same as embodiment one.
以上对本实用新型的实施例进行了详细说明，但所述内容仅为本实用新型的较佳实例，不能被认为用于限定本实用新型的实施范围。凡依本实用新型申请范围所作的均等变化与改进等，均应仍归属于本实用新型的专利涵盖范围之内。The embodiments of the present utility model have been described in detail above, but the content described is only a preferred example of the present utility model, and cannot be considered as limiting the implementation scope of the present utility model. All equal changes and improvements made according to the application scope of the utility model should still belong to the scope covered by the patent of the utility model.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520457087.5U CN204765888U (en) | 2015-06-29 | 2015-06-29 | Metal meets bone screw |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520457087.5U CN204765888U (en) | 2015-06-29 | 2015-06-29 | Metal meets bone screw |
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| CN204765888U true CN204765888U (en) | 2015-11-18 |
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| CN201520457087.5U Expired - Lifetime CN204765888U (en) | 2015-06-29 | 2015-06-29 | Metal meets bone screw |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104921801A (en) * | 2015-06-29 | 2015-09-23 | 北京贝思达生物技术有限公司 | Metal bone screw |
| WO2023109432A1 (en) * | 2021-12-17 | 2023-06-22 | 苏州景昱医疗器械有限公司 | Skull pin and brain electrode fixation assembly |
-
2015
- 2015-06-29 CN CN201520457087.5U patent/CN204765888U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104921801A (en) * | 2015-06-29 | 2015-09-23 | 北京贝思达生物技术有限公司 | Metal bone screw |
| WO2023109432A1 (en) * | 2021-12-17 | 2023-06-22 | 苏州景昱医疗器械有限公司 | Skull pin and brain electrode fixation assembly |
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