CN203183016U - Inner fixing system of convex sacrum plate - Google Patents
Inner fixing system of convex sacrum plate Download PDFInfo
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- CN203183016U CN203183016U CN 201320233491 CN201320233491U CN203183016U CN 203183016 U CN203183016 U CN 203183016U CN 201320233491 CN201320233491 CN 201320233491 CN 201320233491 U CN201320233491 U CN 201320233491U CN 203183016 U CN203183016 U CN 203183016U
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Abstract
一种骶骨凸型板内固定系统，属于骨外科医疗器械技术领域，包括呈凸型的固定钢板，所述固定钢板包括头部和与之相连的体部，所述内固定系统还包括用于伸入到骶骨内的四根螺钉，所述四根螺钉安装在固定钢板上且交叉设置。所述头部两个螺孔拧入的螺钉交叉，所述体部两个螺孔拧入的螺钉交叉，所述头部与体部拧入的螺钉之间不交叉。运用该内固定系统能够有效的对骶骨进行固定，且螺钉不易松动，手术操作简单，手术时间短，能够积极促进骨折的愈合。此内固定系统可广泛应用于治疗骶骨不同部位的骨折，尤其治疗骶骨III区的骨折是/否合并骶神经的卡压损伤等方面具有很大优势。
A convex plate internal fixation system for the sacrum belongs to the technical field of orthopedic surgery medical instruments, comprising a convex fixed plate, the fixed plate includes a head and a body connected thereto, and the internal fixation system also includes a Four screws protruding into the sacrum, the four screws are installed on the fixed plate and arranged crosswise. The screws screwed into the two screw holes of the head intersect, the screws screwed into the two screw holes of the body intersect, and the screws screwed into the head and body do not intersect. The internal fixation system can effectively fix the sacrum, and the screw is not easy to loosen, the operation is simple, the operation time is short, and the fracture healing can be actively promoted. This internal fixation system can be widely used in the treatment of fractures in different parts of the sacrum, especially in the treatment of fractures in the III area of the sacrum with or without entrapment injury of the sacral nerve.
Description
Technical field
This utility model relates to technical field of medical instruments, is a kind of implant specifically, particularly relates to a kind of internal fixation system for the treatment of fracture of the sacrum, especially refer to the fracture for the treatment of rumpbone III district be/the card crushing that do not merge sacral nerves hinders.
Background technology
In recent years, the incidence rate of fracture of the sacrum constantly raises along with increasing of high-energy such as large-scale vehicle accident damage, has caused very big attention in the clinic diagnosis process.What the fracture of the sacrum Clinical typing was the most frequently used is the Denis typing, and it is that anatomical position according to fracture of the sacrum can be divided into three types: Denis I type is ala sacralis position fracture, the damage of no sacrum hole and canalis sacralis; Denis II type is the fracture at hiatus of sacrum position, and ala sacralis can be got involved; Denis III type is canalis sacralis position fracture, and when this type of fracture took place, canalis sacralis, ala sacralis and sacrum porose area can be got involved simultaneously.The treatment of fracture of the sacrum is divided into expectant treatment and operative treatment, and the treatment measure of expectant treatment comprises mainly that absolute bed rest, position reset, Gypsum Fibrosum, brace external fixation and pelvic traction etc.; And operative treatment mainly comprises pelvis exterior fixation bracket external fixation and sacroiliac screw, sacrum rod, posterior plate internal fixation.Along with surgical technic fast development and patient to improving constantly of requiring of quality of life, the active and effective treatment that undergos surgery is accepted gradually.
But the clinical internal fixation apparatus that is applied to can't reach gratifying effect at present, sacroiliac screw is fixing puts nail specification requirement height to the patient, misoperation easy damaged sacral nerves, cauda equina nerve or contiguous blood vessel, need to go repeatedly X line perspective in the art, patient and patient will accept a large amount of rays, and sacroiliac screw can not be used for III district fracture of the sacrum.The sacrum rod fixing operation is simple, safety, wound are little, but be only applicable to the complete person of rumpbone the place ahead ligament structure, otherwise easily cause the place ahead, pressurization back to open, excessively pressurization can cause the fracture of the sacrum compression simultaneously, the damage sacral nerves, and be unsuitable for the dislocation of bilateral sacroiliac joint or fracture.Has the important clinical meaning so study a kind of novel, more stabilizing effective fracture of the sacrum internal fixation system.
In early-stage Study, we adopt the fracture (I, II, III district fracture) of dimensional finite element method simulation rumpbone different parts, and convex plate internal fixation system (comprising convex plate half-thread hollow screw and the solid screw system of the convex plate full thread) simulation of adopting sacroiliac screw to reach design is voluntarily carried out internal fixation and come relatively to the fixing effect (being stress distribution and displacement situation) of fracture of the sacrum.We find that the convex plate internal fixation system of design is little than the sacroiliac screw displacement voluntarily, and stability is high.
The utility model content
This utility model aims to provide a kind of novel internal fixation system for the treatment of fracture of the sacrum, and this rumpbone convex plate internal fixation system can effectively be fixed fixation to rumpbone, be difficult for loosening, operation technique is simple, and operating time is short, can effectively promote the healing of fracturing.
This utility model is by the following technical solutions:
A kind of rumpbone convex plate internal fixation system, comprise the fixation steel plate that is convex, described fixation steel plate comprises that head and the body that is attached thereto, described internal fixation system also comprise be used to four screws that extend in the rumpbone, and described four screws are installed on the fixation steel plate and are arranged in a crossed manner.
Described head is provided with the screw of two symmetries, shows two screws along described body y direction parallel, is screwed into for described four screws.
Described four screws are half-thread hollow nail or full thread locking nail, described screw comprises shank of screw and screw cap, described screw cap offers groove, described groove is regular hexagon, run through offering recess in the middle part of the screw cap groove of described half-thread hollow nail downwards, described recess extends in the described shank of screw.
Screw that two screws of described head are screwed into intersects, and the screw that two screws of described body are screwed into intersects, and does not intersect between the screw that described head and body are screwed into.
Rumpbone convex plate internal fixation system provided by the utility model has following advantage:
Convex fixation steel plate in the internal fixation system that this utility model provides forms according to the special dissection structural design of human body ilium outside plate, can be good at matching with the ilium outside plate.The enforcement arranged in a crossed manner in twos of the half-thread hollow nail that head and body are screwed into or full thread locking nail is used, and the fracture of rumpbone different parts especially rumpbone III district is fractured can reach good fixed effect.
Description of drawings
Fig. 1 is the structural representation of an embodiment of this utility model rumpbone convex plate internal fixation system
Fig. 2 is the structural representation of another embodiment of this utility model rumpbone convex plate internal fixation system
The specific embodiment
What this utility model provided as shown in Figure 1 and Figure 2 is the convex plate internal fixation system that is used for the treatment of fracture of the sacrum, its structure comprises the fixation steel plate 1 that is convex and extend into four interior screws 2 of rumpbone that described fixation steel plate 1 comprises head 3 and the body 4 that is attached thereto.Described head 3 is provided with the screw of two symmetries, shows two screws along described body 4 y direction parallel, is screwed into for described four screws 2.Screw that two screws of described head 3 are screwed into intersects, and the screw that two screws of described body 4 are screwed into intersects, and does not intersect between the screw that the screw of described head 3 and body 4 is screwed into.
An embodiment providing of this utility model is convex plate half-thread hollow screw internal fixation system as shown in Figure 1, it is characterized in that described screw 2 is half-thread hollow nail 2a, half-thread hollow nail 2a comprises shank of screw 3a and screw cap 4a, described screw cap 4a offers groove 5a, described groove 5a is regular hexagon, run through offering recess 6a in the middle part of the groove 5a of the screw cap 4a of described half-thread hollow nail 2a downwards, described recess 6a extends in the described shank of screw 3a.
Another embodiment of providing of this utility model is the solid screw internal fixing system of convex plate full thread as shown in Figure 2.Described screw 2 is full thread locking nail 2b, and full thread locking nail 2b comprises shank of screw 3b and screw cap 4b, and described screw cap 4b offers groove 5b, and described groove 5b is regular hexagon.
Operative process is: behind the general anesthesia, the patient gets the ventricumbent position, operative incision adopts curved incision, determine cutting part and length according to the fracture of the sacrum situation, the otch size should be able to be put into implant, cuts skin, subcutaneous tissue, fascia outside periosteum, and gluteus is peeled off from the outside below of ilium outside plate subperiosteum, appear outside plate, obtain enough surgical field of view.Expose fracture site, fracture of the sacrum to displacement carries out reduction, the card that sacral nerves is arranged is pressed, the need of damage reduce pressure, the convex fixation steel plate that this utility model provides is put into ilium outside plate side, because the convex plate has the irregular special anatomical structure of identical human body ilium outer plate surface, so can well attach identical, the entry point of under C type arm X line machine fluoroscopic monitoring, measuring before with reference to art in the art and advance to follow closely angle Selection half-thread hollow screw or the solid screw of full thread is fixed, can cooperate the interim use of Kirschner wire to fix in the screw fixation procedure, the complete perspective of art fracture site down resets well, convex plate internal fixation system position can, the flushing wound, sew up each layer successively, avoid residual cavity.
In a word, use rumpbone convex plate internal fixation system effectively to fix rumpbone, and screw is difficult loosening, operation technique is simple, and operating time is short, actively promotes the healing of fracturing.This rumpbone convex plate internal fixation system can be widely used in treating the fracture of rumpbone different parts, and the fracture for the treatment of rumpbone III district especially clinically is/and the aspect tools such as card crushing wound that do not merge sacral nerves have great advantage.
Claims (4)
1. rumpbone convex plate internal fixation system, comprise the fixation steel plate that is convex, described fixation steel plate comprises head and the body that is attached thereto, it is characterized in that: described internal fixation system also comprises be used to four screws that extend in the rumpbone, and described four screws are installed on the fixation steel plate and are arranged in a crossed manner.
2. rumpbone convex plate internal fixation system according to claim 1, it is characterized in that: described head is provided with the screw of two symmetries, shows two screws along described body y direction parallel, is screwed into for described four screws.
3. rumpbone convex plate internal fixation system according to claim 1, it is characterized in that: described four screws are half-thread hollow nail or full thread locking nail, described screw comprises shank of screw and screw cap, described screw cap offers groove, described groove is regular hexagon, run through offering recess in the middle part of the screw cap groove of described half-thread hollow nail downwards, described recess extends in the described shank of screw.
4. rumpbone convex plate internal fixation system according to claim 1 and 2 is characterized in that: the screw that two screws of described head are screwed into intersects, and the screw that two screws of described body are screwed into intersects, and does not intersect between the screw that described head and body are screwed into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320233491 CN203183016U (en) | 2013-04-19 | 2013-04-19 | Inner fixing system of convex sacrum plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320233491 CN203183016U (en) | 2013-04-19 | 2013-04-19 | Inner fixing system of convex sacrum plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203183016U true CN203183016U (en) | 2013-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320233491 Expired - Fee Related CN203183016U (en) | 2013-04-19 | 2013-04-19 | Inner fixing system of convex sacrum plate |
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| Country | Link |
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| CN (1) | CN203183016U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107080605A (en) * | 2017-01-13 | 2017-08-22 | 王金成 | 3D printing method of individualized customized sacral reconstruction board and sacral reconstruction board |
-
2013
- 2013-04-19 CN CN 201320233491 patent/CN203183016U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107080605A (en) * | 2017-01-13 | 2017-08-22 | 王金成 | 3D printing method of individualized customized sacral reconstruction board and sacral reconstruction board |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130911 Termination date: 20140419 |