CN102920498B - Telescopic tibiofibular syndesmosis fastening screw - Google Patents
Telescopic tibiofibular syndesmosis fastening screw Download PDFInfo
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- CN102920498B CN102920498B CN201210411025.1A CN201210411025A CN102920498B CN 102920498 B CN102920498 B CN 102920498B CN 201210411025 A CN201210411025 A CN 201210411025A CN 102920498 B CN102920498 B CN 102920498B
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- screw
- pipe box
- telescopic
- tibiofibular joint
- sleeve
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Abstract
The invention relates to a tibiofibular syndesmosis fastening screw. The telescopic tibiofibular syndesmosis fastening screw comprises a sleeve (1), wherein a profile hole is formed under the sleeve (1); a screw (2) is arranged in the sleeve (1), the upper end of the screw (2) is provided with a smooth section, the middle part of the screw (1) is provided with a profile section matched with the profile hole under the sleeve (1), and the lower part of the screw (1) is provided with the screw; and a return spring (3) is arranged between the smooth section of the screw (2) and the sleeve (1). The telescopic tibiofibular syndesmosis fastening screw has the advantages of being simple in structure and convenient to use. When tibiofibular syndesmosis is damaged, a screw is used for fixing; after ligament of the tibiofibular syndesmosis is completely healed and stressed when moving around, the profile section in the middle part of the screw slides and stretches in the profile hole; and when weight disappears, the screw is returned in the action of the return spring. The telescopic tibiofibular syndesmosis fastening screw is in accordance with the micro physical property of human inferior tibiofibular joint, so that the problem that a conventional screw is broken when being fixed can be solved.
Description
Technical field
The present invention relates to a kind of Inferior tibiofibular joint hold-down screw.
Background technology
Jower tibiofibular joint is also known as Inferior tibiofibular joint, and be one of important feature maintaining dislocation of ankle joint, Inferior tibiofibular joint is made up of tibiofibula far-end and lower tibiofibula ligament complex, and Inferior tibiofibular syndesmosis split is the common associated injuries of fracture dislocation.Generally adopt operative treatment after damage, use screw, shin calf hook, band wire holdfast etc. to be fixed, and screw is fixing the most conventional.Screw internal fixation treatment separation of Jower tibiofibular joint 15 example is used, wherein broken nail 6 example according to relevant report.Screw extraction easily causes the complication such as syndesmosis is ossified, ankle joint wound arthritis, ankle moving degree diminish.
Fig. 1 is the postoperative broken nail X-ray film of separation of Jower tibiofibular joint.Jower tibiofibular joint is jointly made up of tibiofibula far-end and Inferior tibiofibular joint ligament, and after Inferior tibiofibular joint ligament rapture, being separated appears in Jower tibiofibular joint.Be screwed clinically, Inferior tibiofibular joint ligament is healed under complete resting state, its healing time about 6 ~ 8 weeks, the reason of broken nail is caused to bear a heavy burden too early, Inferior tibiofibular joint ligament does not heal completely, and stress concentrates on screw, can cause screw extraction, screw takes out too late, it is the another major reason occurring broken nail, this factor cannot be avoided sometimes, because healing time comparatively the ligament time long, too early removable screw can cause secondary to be fractured, so the early treatment of Inferior tibiofibular joint ligament is relatively easy, and the complication of later stage screw extraction becomes the difficult point of orthopaedics therapy, study a kind of inner fixing device, in early days can fixed and repaired Inferior tibiofibular joint ligament and fracture of fibula, the physiological property of human body Jower tibiofibular joint fine motion can be met again after later stage functional activity, there will not be the complication such as broken nail, it is the inexorable trend of current orthopaedics therapy Inferior tibiofibular joint ligament development.
Summary of the invention
The object of the invention is to avoid the deficiencies in the prior art to provide a kind of mobilizable Inferior tibiofibular joint hold-down screw.To solve the problem of stressed rear broken nail.
For achieving the above object, the technical scheme that the present invention takes is: a kind of telescopic Inferior tibiofibular joint hold-down screw, its main feature is to include pipe box, the below of pipe box is provided with irregularly-shaped hole, screw is located in pipe box, the upper end of screw is smooth section, and middle part is the special-shaped section matched with the irregularly-shaped hole below pipe box, and bottom is screw; Back-moving spring is provided with between the smooth section and pipe box of screw.
Described telescopic Inferior tibiofibular joint hold-down screw, also include and be provided with nut on the top of pipe box and pipe box is connected, nut is greater than pipe box.
Described telescopic Inferior tibiofibular joint hold-down screw, the connection be connected as steady pin or left-hand thread or hold-down screw of described nut and pipe box.
Described telescopic Inferior tibiofibular joint hold-down screw, described abnormity is four directions, six sides or all directions.
The invention has the beneficial effects as follows:
Structure is simple, easy to use.In early days can fixed and repaired Inferior tibiofibular joint ligament and fracture of fibula, the physiological property of human body Jower tibiofibular joint fine motion can be met again after later stage functional activity.When Inferior tibiofibular joint is impaired, make to be screwed, after Inferior tibiofibular joint ligament heals completely, when Go to ground activity is stressed, the special-shaped section in the middle part of screw will be slided elongation in profiled holes; When heavy burden disappears, screw, under the effect of back-moving spring, resets.Meet human body Jower tibiofibular joint fine motion physiological property, solve the problem that plain screw fixes rear broken nail.
Accompanying drawing explanation
Fig. 1 is the postoperative broken nail X-ray film of separation of Jower tibiofibular joint;
Fig. 2 is device schematic diagram of the present invention;
Fig. 3 is A-A cross-sectional schematic of the present invention.
Detailed description of the invention
Be described principle of the present invention and feature below in conjunction with accompanying drawing, example, only for explaining the present invention, is not intended to limit scope of the present invention.
Embodiment 1: see Fig. 2, Fig. 3, a kind of telescopic Inferior tibiofibular joint hold-down screw, includes pipe box 1, the below of pipe box 1 is provided with four square holes, and screw 2 is located in pipe box 1, and the upper end of screw 2 is smooth section, the cubic section of middle part for matching with the square hole below pipe box 1, bottom is screw; Back-moving spring 3 is provided with between the smooth section and pipe box 1 of screw 2.Be provided with nut 4 to be connected with pipe box 1 on the top of pipe box 1, nut is greater than pipe box.Described nut 4 is connected as steady pin is connected with pipe box 1.
Embodiment 2: a kind of telescopic Inferior tibiofibular joint hold-down screw, include pipe box 1, the below of pipe box 1 is provided with hexagonal hole, screw 2 is located in pipe box 1, the upper end of screw 2 is smooth section, and middle part is the six side's sections matched with the hexagonal hole below pipe box 1, and bottom is screw; Back-moving spring 3 is provided with between the smooth section and pipe box 1 of screw 2.Described nut 4 is connected as left-hand thread is connected with pipe box 1.All the other are identical with structure.
Embodiment 3: a kind of telescopic Inferior tibiofibular joint hold-down screw, a kind of telescopic Inferior tibiofibular joint hold-down screw, a kind of telescopic Inferior tibiofibular joint hold-down screw, include pipe box 1, the below of pipe box 1 is provided with hole from all directions, and screw 2 is located in pipe box 1, and the upper end of screw 2 is smooth section, the all directions section of middle part for matching with eight square openings below pipe box 1, bottom is screw; Back-moving spring 3 is provided with between the smooth section and pipe box 1 of screw 2.Described nut 4 is connected as the connection of hold-down screw with pipe box 1.All the other are identical with structure.
During use, first beat via hole, due to rotating screw cap of the present invention, pipe box can be driven to rotate, pipe box drives screw turns by profiled holes, under the effect of spiral force, the present invention can be screwed into by normal screw, because nut is greater than pipe box, for this reason, Inferior tibiofibular joint can be fixed.When lower tibiofibula combined ligament does not heal completely, time stressed, the special-shaped section in the middle part of screw will be slided elongation in profiled holes; When heavy burden disappears, screw, under the effect of back-moving spring, resets.
Heal after 6 ~ 8 weeks, Inferior tibiofibular joint ligament heals completely, the present invention is back-outed by normal screw when not merging fracture of fibula; When merging fracture of fibula, again the present invention is back-outed by normal screw after waiting fracture to heal completely and both can.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a telescopic Inferior tibiofibular joint hold-down screw, it is characterized in that including pipe box (1), the below of pipe box (1) is provided with irregularly-shaped hole, screw (2) is located in pipe box (1), the upper end of screw (2) is smooth section, the special-shaped section of middle part for matching with the irregularly-shaped hole of pipe box (1) below, bottom is screw; Back-moving spring (3) is provided with between the smooth section and pipe box (1) of screw (2).
2. telescopic Inferior tibiofibular joint hold-down screw as claimed in claim 1, characterized by further comprising and to be provided with nut (4) on the top of pipe box (1) and to be connected with pipe box (1), nut is greater than pipe box.
3. telescopic Inferior tibiofibular joint hold-down screw as claimed in claim 2, is characterized in that the connection be connected as steady pin or left-hand thread or hold-down screw of described nut (4) and pipe box (1).
4. telescopic Inferior tibiofibular joint hold-down screw as claimed in claim 1, is characterized in that described abnormity is four directions, six sides or all directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210411025.1A CN102920498B (en) | 2012-10-24 | 2012-10-24 | Telescopic tibiofibular syndesmosis fastening screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210411025.1A CN102920498B (en) | 2012-10-24 | 2012-10-24 | Telescopic tibiofibular syndesmosis fastening screw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102920498A CN102920498A (en) | 2013-02-13 |
| CN102920498B true CN102920498B (en) | 2015-05-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210411025.1A Expired - Fee Related CN102920498B (en) | 2012-10-24 | 2012-10-24 | Telescopic tibiofibular syndesmosis fastening screw |
Country Status (1)
| Country | Link |
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| CN (1) | CN102920498B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2896937A1 (en) * | 2014-08-11 | 2016-02-11 | Wright Medical Technology, Inc. | Flexible screw and methods for syndesmosis repair |
| US11179234B2 (en) | 2017-09-15 | 2021-11-23 | Paragon 28, Inc. | Ligament fixation system, implants, devices, and methods of use |
| EP3691543A1 (en) | 2017-10-06 | 2020-08-12 | Paragon 28, Inc. | Ligament fixation system, implants, devices, and methods of use |
| EP3700447B1 (en) | 2017-10-25 | 2023-09-06 | Paragon 28, Inc. | Ligament fixation system, implants, and devices with a compression cap |
| CN114376701B (en) * | 2021-12-21 | 2023-02-14 | 长春圣博玛生物材料有限公司 | High-strength screw |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2562737Y (en) * | 2002-09-02 | 2003-07-30 | 宋文超 | Spring cross locked intramedullary nail |
| CN2774414Y (en) * | 2005-03-28 | 2006-04-26 | 王秋霞 | External fixing frame elastic device |
| CN1875892A (en) * | 2005-03-26 | 2006-12-13 | 王秋霞 | Elastic interlocking intramedullary nail |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6197030B1 (en) * | 1997-12-30 | 2001-03-06 | Christopher J. Pham | Elastic loaded retractable pin device for cranial bone attachment |
| CN102670291B (en) * | 2012-05-29 | 2014-01-29 | 开平市中心医院 | Inferior tibiofibular bolt elastic fixing device |
-
2012
- 2012-10-24 CN CN201210411025.1A patent/CN102920498B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2562737Y (en) * | 2002-09-02 | 2003-07-30 | 宋文超 | Spring cross locked intramedullary nail |
| CN1875892A (en) * | 2005-03-26 | 2006-12-13 | 王秋霞 | Elastic interlocking intramedullary nail |
| CN2774414Y (en) * | 2005-03-28 | 2006-04-26 | 王秋霞 | External fixing frame elastic device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102920498A (en) | 2013-02-13 |
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Granted publication date: 20150527 Termination date: 20161024 |
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| CF01 | Termination of patent right due to non-payment of annual fee |