CN101224130A - Dissection armor plate for locking wall agnail angle after acetabulum - Google Patents
Dissection armor plate for locking wall agnail angle after acetabulum Download PDFInfo
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- CN101224130A CN101224130A CNA2008100545046A CN200810054504A CN101224130A CN 101224130 A CN101224130 A CN 101224130A CN A2008100545046 A CNA2008100545046 A CN A2008100545046A CN 200810054504 A CN200810054504 A CN 200810054504A CN 101224130 A CN101224130 A CN 101224130A
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- acetabulum
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Abstract
An acetabulum posterior wall agnail angle locking anatomic steel plate pertains to the technical field of surgical medical devices. The invention is used for providing the acetabulum posterior wall agnail angle locking anatomic steel plate which has fewer traumas, safe and reliable fixation, and convenient placement and removal. The invention includes a plate body which is provided with screw holes, the screw holes are a row of oblique holes, which are arranged along the opposite side of the one side of the plate body that is opposite to the edge of the acetabulum, the oblique included angle of the central line of the screw holes and the plate surface is 30 degrees to 60 degrees, the contacted part of the one side of the plate body which is opposite to the edge of the acetabulum and the bone surface is provided with an agnail, and the oblique included angle of the central line of the agnail and the plate surface is 30 degrees to 45 degrees. The invention can make use of the self-shape to ensure the fixation of fracture to be most close to the normal structure after the reduction and fixation of the fracture. The invention has the integrity and the stability which are not possessed by the combined usage of a plurality of bone plates. The invention can reduce surgical incision, reduce the dissection of soft tissues, have less oppression on the periosteum and be conductive to the healing of fracture; the placement and the removal are easier. The cost is low, and the invention can completely prevent the implanted screw and screw rod from entering the acetabulum.
Description
Technical field
The present invention relates to a kind of dissection armor plate for the treatment of acetabular bone rear portion fracture, belong to the surgical medical equipment technical field.
Background technology
The important step of treatment acetabular bone rear portion fracture is with fixing after the reduction of the fracture.Usually the fixing means that adopts is to be placed on the precalculated position with one or more reconstruction plate after the reduction of the fracture of acetabular bone rear portion at present, and the reuse hold-down screw passes the screw hole on the blade plate, and fracture anatomical reduction is fixed.The shortcoming of this method is: acetabular bone position anatomic form complexity, and the classification of fracture complexity, only not ideal enough by the fixed effect of a block length bar shaped reconstruction plate screw.If use the polylith blade plate to fix simultaneously, owing to be independently between the blade plate, often not firm to the fracture fixation of complexity; Use the polylith blade plate, the fixed in position complexity is bigger to soft tissue destruction; On the other hand, use the fixed surgery cost costliness of polylith blade plate, increase patient's financial burden.In addition, existing reconstruction plate is plate shaped, and the screw hole on it is and the vertical hole of plate face, and steel plate needs bend by means of specific purpose tool or with hands before use, is bent into the arc that is complementary with acetabular bone rear wall anatomic form, and is comparatively loaded down with trivial details.Simultaneously, easily the screw of implanting is imported in the acetabular bone, cause malpractice with the vertical screw hole of plate face.
Summary of the invention
The purpose of this invention is to provide a kind of wound little, fixing safe and reliable, be convenient to the dissection armor plate for locking wall agnail angle after acetabulum placing and take out.
It is as follows to address the above problem the technical scheme that is adopted:
A kind of dissection armor plate for locking wall agnail angle after acetabulum, it comprises the plate body that is provided with screw hole, its improvement is, said screw hole is row's angling hole, offside along relative limbus of acetabulum one side of plate body is arranged, the slanted angle α of the centrage of screw hole and plate face is 30 °-60 °, and relative limbus of acetabulum one side of plate body and the contacted position of surface of bone are provided with agnail, and the slanted angle β between agnail centrage and plate face is 30 °-45 °.
Above-mentioned dissection armor plate for locking wall agnail angle after acetabulum, described plate body be straight shape or with the suitable arc of acetabular bone rear portion anatomic form.
Above-mentioned dissection armor plate for locking wall agnail angle after acetabulum, described row's screw hole is 4-10, screw hole can be the alternate layout with through hole of screwed hole, through hole or screwed hole.
Above-mentioned dissection armor plate for locking wall agnail angle after acetabulum, described agnail are 2-4, and the length of agnail is 3-8mm.
Above-mentioned dissection armor plate for locking wall agnail angle after acetabulum, described agnail is straight thrust or arc thorn.
The side two ends that above-mentioned dissection armor plate for locking wall agnail angle after acetabulum, described plate body are established screw hole respectively are provided with lug, and lug is provided with the lug screw hole.
Above-mentioned dissection armor plate for locking wall agnail angle after acetabulum, the two sides of the relative plate body of described screw hole is equipped with boss, with the height of contacted its boss of one side of surface of bone be 0.3-1.0mm, it highly is 0.5-1.5mm for the another side boss.
Dissection armor plate form provided by the present invention and acetabular bone rear portion are dissected close, and this blade plate can reinvent, and can make blade plate and fracture of acetabulum position anatomic form matched well; Because the approximation of this dissection armor plate and acetabular bone rear portion anatomical structure, after the reduction of the fracture was fixing, form that can utilization itself guaranteed fixing near normal configuration of fracture.Compare with the fracture bone plate of two above crossover locations, the present invention has the fixed range identical with it, has not available globality of polylith blade plate coupling and stability simultaneously.When operation technique, use the present invention will reduce operative incision, reduce soft tissue peeled off less compressing to periosteum, the healing that is more conducive to fracture; Place and take out and also will be more prone to.Cost of the present invention is low, can alleviate the medical burden of patient and society greatly.In addition, the screw hole of set inclination and agnail structure in the present invention, the phenomenon that the screw screw rod that can thoroughly avoid implanting enters acetabular bone, the generation that can effectively stop malpractice.Easy and simple to handle, laborsaving.
Description of drawings
Fig. 1 is the main TV structure sketch map of the embodiment of the invention one;
Fig. 2 is the A-A profile of Fig. 1;
Fig. 3 is the vertical view of Fig. 1;
Fig. 4 is the partial view of the embodiment of the invention two;
Fig. 5 is that the master of the embodiment of the invention three looks sketch map;
Fig. 6 is that the master of the embodiment of the invention four looks sketch map.
Number in the figure is respectively: 1-screw hole, 2-plate body, 3-another side boss, 4-boss, 5-agnail, 6-lug screw hole, 7-lug.
The specific embodiment
Consult Fig. 1, Fig. 2 and Fig. 3, in embodiment one, plate body 2 is straight fanning strip, utilizes the medical stainless steel plate to make, and steel plate thickness is 0.8-2mm.Under the situation that guarantees steel plate rigidity, steel plate is got over Bao Yuehao.In the present embodiment, the wide 20-25mm of steel plate, long 40-70mm, boss is established at the position of screw hole 1 place plate face, plate body 2 and the set boss 4 high 0.5mm of the contacted one side of surface of bone, another side boss 3 high 1mm.
The set row's screw hole 1 of plate body is angling hole, slanted angle α between screw hole 1 and plate face is 30 °-60 °, plate body 2 relative limbus of acetabulum one sides and the contacted position of surface of bone are provided with 2-4 agnail 5, in the present embodiment, agnail 5 is straight thrust, sting long 3-8mm, the slanted angle β between the centrage of agnail 5 and plate face is 30 °-45 °.One row's screw hole 1 is 4-10, shown in the figure is 8.8 screw holes 1 can all be through holes, can all be screwed holes also, but the alternate layout with screwed hole of through hole preferably, like this, the screw hole that is provided with screw thread is a lock hole, can implant lock screw, through hole can be inserted common fixedly steel nail.The present invention adopts the screw hole and the agnail of inclination, can guarantee that at bone the screw rod of screw and agnail can not enter in the acetabular bone, and be safe and reliable, can effectively prevent the generation of malpractice fixedly the time.The angle of inclination of screw hole and agnail is consistent or close with the tangential direction of acetabular bone.The screw screw diameter that matches with screw hole 1 is generally 2.4mm.
In embodiment one,,, plate body is bent into and the suitable arc of acetabular bone rear wall anatomic form so need before use carry out bending by means of specific purpose tool or with hands because of the plate body 2 of dissection armor plate is straight shape.
Agnail 5 is set is used for substituting hold-down screw.During operation, not only easy to operate, and use this dissection armor plate more safe and reliable.
Referring to Fig. 4, what embodiment two and embodiment one were different is that its agnail 5 is the arc thorn, can guarantee further that agnail 5 can not enter in the acetabular bone when operation.
Embodiment illustrated in fig. 5 three is respectively to establish a lug 7 at the side two ends that plate body 2 is established screw hole, and lug 7 is provided with lug screw hole 6, helps making this dissection armor plate to be applicable to multiple different fracture situation like this.
Referring to Fig. 6, embodiment four and embodiment one are different is that the plate body 2 of this dissection armor plate is arc, and promptly plate body 2 is and the suitable arc of acetabular bone rear wall anatomic form, like this, when operation, can directly use or can use after the shaping a little, and is very convenient.
Claims (7)
1. dissection armor plate for locking wall agnail angle after acetabulum, it comprises the plate body that is provided with screw hole, it is characterized in that, said screw hole [1] is row's angling hole, offside along relative limbus of acetabulum one side of plate body [2] is arranged, the slanted angle [α] of the centrage of screw hole [1] and plate face is 30 °-60 °, and relative limbus of acetabulum one side of plate body [2] and the contacted position of surface of bone are provided with agnail [5], and the slanted angle [β] between agnail [5] centrage and plate face is 30 °-45 °.
2. dissection armor plate for locking wall agnail angle after acetabulum according to claim 1 is characterized in that, described plate body [2] be straight shape or with the suitable arc of acetabular bone rear portion anatomic form.
3. dissection armor plate for locking wall agnail angle after acetabulum according to claim 1 is characterized in that, described screw hole [1] is 4-10, and screw hole is the alternate layout with through hole of screwed hole, through hole or screwed hole.
4. dissection armor plate for locking wall agnail angle after acetabulum according to claim 1 is characterized in that, described agnail [5] is 2-4, and the length of agnail [5] is 3-8mm.
5. according to claim 1,2,3 or 4 described dissection armor plate for locking wall agnail angle after acetabulum, it is characterized in that described agnail [5] is straight thrust or arc thorn.
6. according to claim 1,2,3 or 4 described dissection armor plate for locking wall agnail angle after acetabulum, it is characterized in that the side two ends that described plate body [2] is established screw hole [1] respectively are provided with lug [7], lug [7] is provided with lug screw hole [6].
7. according to claim 1,2,3 or 4 described dissection armor plate for locking wall agnail angle after acetabulum, it is characterized in that, described screw hole [1] two sides of plate body [2] relatively is equipped with boss, with the height of its boss of the contacted one side of surface of bone [4] be 0.3-1.0mm, it highly is 0.5-1.5mm for an another side boss [3].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100545046A CN101224130A (en) | 2008-01-29 | 2008-01-29 | Dissection armor plate for locking wall agnail angle after acetabulum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100545046A CN101224130A (en) | 2008-01-29 | 2008-01-29 | Dissection armor plate for locking wall agnail angle after acetabulum |
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| Publication Number | Publication Date |
|---|---|
| CN101224130A true CN101224130A (en) | 2008-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100545046A Pending CN101224130A (en) | 2008-01-29 | 2008-01-29 | Dissection armor plate for locking wall agnail angle after acetabulum |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103054639A (en) * | 2013-01-14 | 2013-04-24 | 上海市第六人民医院 | Internal fixator for posterior acetabular wall fractures |
| CN106037914A (en) * | 2016-08-12 | 2016-10-26 | 朱文川 | Degradable proximal tibia posterior-lateral locking internal fixation apparatus with development functions |
| CN108403198A (en) * | 2018-03-29 | 2018-08-17 | 江苏百易得医疗科技有限公司 | A kind of posterior wall of acetabulum bone plate |
-
2008
- 2008-01-29 CN CNA2008100545046A patent/CN101224130A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103054639A (en) * | 2013-01-14 | 2013-04-24 | 上海市第六人民医院 | Internal fixator for posterior acetabular wall fractures |
| CN103054639B (en) * | 2013-01-14 | 2015-04-08 | 上海市第六人民医院 | Internal fixator for posterior acetabular wall fractures |
| CN106037914A (en) * | 2016-08-12 | 2016-10-26 | 朱文川 | Degradable proximal tibia posterior-lateral locking internal fixation apparatus with development functions |
| CN108403198A (en) * | 2018-03-29 | 2018-08-17 | 江苏百易得医疗科技有限公司 | A kind of posterior wall of acetabulum bone plate |
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Open date: 20080723 |