CN201586057U - Thorax lumbar vertebra front circuit board fixing system - Google Patents
Thorax lumbar vertebra front circuit board fixing system Download PDFInfo
- Publication number
- CN201586057U CN201586057U CN2010203001605U CN201020300160U CN201586057U CN 201586057 U CN201586057 U CN 201586057U CN 2010203001605 U CN2010203001605 U CN 2010203001605U CN 201020300160 U CN201020300160 U CN 201020300160U CN 201586057 U CN201586057 U CN 201586057U
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- nail
- vertebral body
- lumbar vertebra
- plate
- hole slot
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Abstract
The utility model discloses a thorax lumbar vertebra front circuit board fixing system, which comprises a board body, screw nails and nuts. The appearance of the board body is a similar K shape; the board body comprises a first end portion board, a bridge portion board and a second end portion board; a plurality of slots are arranged on the board body; the screw nails penetrate through the slots; and the nuts are used for fixing the screw nails. The thorax lumbar vertebra front circuit board fixing system sufficiently considers the characteristics of anatomy of Chinese people; related design parameters directly come from measuring materials of spinal column anatomy of Chinese people; and the fixing system can meet the requirements of fixing operations of thorax lumbar vertebra, has fine reset and fixing effects, can be used for maintaining natural physiological bending of pathological spinal columns, and can recover normal physiological functions of human body spinal columns.
Description
[technical field]
This utility model relates to a kind of orthopaedics medical apparatus and instruments, when especially a kind of breast lumbal vertebra or damage, is used for the breast lumbar vertebra is carried out the preceding road of fixed breast lumbar vertebra plate fixation system.
[background technology]
Along with the development and the problem of an aging population of industry, traffic, spinal trauma and illness are ascendant trend year by year.Wherein the patient of considerable part is when carrying out surgical intervention, the reconstruction that must adopt implant to implant to carry out structure or function etc.For short, the scope of application is also less relatively than way of escape internal fixation for the preceding road of breast lumbar vertebra internal fixation applicating history.This is because the majority in the breast lumbar spondylosis damage can reach therapeutic purposes through posterior approach and internal fixation on the one hand, on the other hand then because breast lumbar vertebra anterior lateral cervical approach relative complex, it is more to relate to structures such as breast, abdominal viscera and important blood vessels, causes the case of some suitable anterior approach to be implemented posterior approach.In fact, some of breast lumbar vertebra be sick decrease as the intervertebral disk hernia of vertebral tumor, the above sections of L1 or ossify, tuberculosis of spine etc., without anterior lateral cervical approach, often be difficult to reach satisfactory effect.And implement internal fixation behind focal cleaning and the interbody bone graft, can make the stability of spinal column obtain rebuilding.From the mechanics angle analysis, preceding road internal fixation mainly plays the retinaculum effect, and way of escape internal fixation mainly plays the tension band effect, is keeping aspect the vertebra front pillar height, and preceding road internal fixation is more reliable.It is generally acknowledged, the applicating finger syndrome of preceding road internal fixation comprises: need bone grafting person, breast waist section old compression fracture caused spinal cord the place ahead pressurized person after vertebral tumor, vertebral body bursting fracture bone piece were charged into the disc removal of canalis spinalis surpass 1/2 (be posterior longitudinal ligament do not break person), the above sections of L1 or ossification of posterior longitudinal ligament kitchen range and removed, and other pathological changes of vertebral body, as tuberculose focus removing and bone grafting etc.
It is stable at once that the preceding road of breast lumbar vertebra internal fixation The Application of Technology obtains the spinal column after focal cleaning or the spinal decompression, and one side provides probability for patient's postoperative early rehabilitation like this, also created essential condition for the protection of function of nervous system or recovery on the other hand.Existing data shows that spinal column is stabilized in the importance in the spinal cord injury treatment in early days.Patient promptly can begin function exercise in early days behind the internal fixation of the preceding road of breast lumbar vertebra, and function of nervous system also obtains remarkable improvement.
The fixed application in the preceding road of domestic spinal column clinically at present is quite extensive, wherein be mainly derived from the internal fixation device of external manufacturer production, the anatomic data of these implants main reference foreigner in development process, therefore not too be fit to Chinese anatomic characteristic in design, and prices are rather stiff for implant, general Chinese are difficult to bear, and shortcomings such as the equal ubiquity product of more domestic products is single, technology is coarse, most employing stainless steel materials, the development need of incompatibility spinal surgery.For satisfying market demand, be necessary to design the preceding road of the breast lumbar vertebra plate fixation system that a kind of Chinese of meeting use.
[summary of the invention]
For solving the problems of the technologies described above, the preceding road of the breast lumbar vertebra plate fixation system that this utility model provides has taken into full account compatriots' anatomic characteristic, and relevant design parameter is directly from compatriots' anatomy of spine survey data.
The preceding road of the breast lumbar vertebra plate fixation system that this utility model provides comprises: plate body, and the plate body profile is similar to the K shape, and plate body comprises first end plate, bridge board and the second end plate, and plate body is provided with a plurality of hole slots; Screw, screw passes hole slot; Nut is used for fixing screw.
According to a preferred embodiment of the present utility model, hole slot comprises vertebral body nail hole slot, vertebral body auxilliary nail hole slot and bone grafting groove.
According to a preferred embodiment of the present utility model, vertebral body nail hole slot comprises circular first vertebral body nail hole slot and strip and is parallel to second vertebral body nail hole slot of plate body.
According to a preferred embodiment of the present utility model, the auxilliary nail of vertebral body hole slot comprises the first circular vertebral body auxilliary nail hole slot and strip and is parallel to the auxilliary nail of second vertebral body hole slot of plate body.
According to a preferred embodiment of the present utility model, the bone grafting groove is strip and the hole slot that is parallel to plate body, and the bone grafting groove is positioned on the bridge board.
According to a preferred embodiment of the present utility model, screw comprises vertebral body nail, the auxilliary nail of vertebral body and bone grafting nail, and the vertebral body nail is longer than the auxilliary nail of vertebral body.
According to a preferred embodiment of the present utility model, the nut that is used for the vertebral body nail is the double nuts structure with grooving.
According to a preferred embodiment of the present utility model, the bottom of thread of vertebral body nail is a pyramidal structure.
According to a preferred embodiment of the present utility model, the contact site of vertebral body nail, bone grafting nail and nut and plate body is all the sphere design.
According to a preferred embodiment of the present utility model, laterally being of plate body is crooked circular-arc.
The preceding road of this utility model breast lumbar vertebra plate fixation system can satisfy the demand of breast lumbar vertebra, corrigent internal fixation operation, reset and fixed effect good, be used to keep the natural physiological bending of pathological changes spinal column, recover human spine's normal physiological function.
[description of drawings]
Fig. 1 is the vertical view according to the preceding road of the breast lumbar vertebra plate fixation system of this utility model one embodiment;
Fig. 2 is the sketch map according to the annexation of the auxilliary nail of vertebral body nail, vertebral body of the preceding road of the breast lumbar vertebra plate fixation system of this utility model one embodiment and bone grafting nail and plate body; And
Fig. 3 is according to the preceding road of the breast lumbar vertebra plate fixation system of this utility model one embodiment cross sectional representation along the dotted line L of Fig. 1.
[specific embodiment]
Relevant feature of the present utility model and technology contents please refer to following detailed description and accompanying drawing, and accompanying drawing only provides reference and explanation, is not to be used for this utility model is limited.
Fig. 1 is the vertical view according to the preceding road of the breast lumbar vertebra plate fixation system of this utility model one embodiment.Fig. 2 is the sketch map according to the annexation of the auxilliary nail of vertebral body nail, vertebral body of the preceding road of the breast lumbar vertebra plate fixation system of this utility model one embodiment and bone grafting nail and plate body.As shown in Figures 1 and 2, the preceding road of breast lumbar vertebra plate fixation system comprises: plate body 1, vertebral body nail 10, the auxilliary nail 11 of vertebral body, bone grafting nail 12, vertebral body oncomelania mother 13, the auxilliary oncomelania mother 14 of vertebral body.
As shown in Figure 1, plate body 1 comprises first end plate 2, bridge board 3 and the second end plate 4.First end plate 2, bridge board 3 and the second end plate 4 can have multiple shape, and in actual applications, first end plate 2 and the second end plate 4 are preferably the shape that expand both sides, the shape of constriction in the middle of bridge board 3 is preferably.The bridge board 3 of the first end plate 2 that expand both sides and the second end plate 4 and middle constriction has been formed the plate body of K font structure.
As shown in Figure 2, the bottom of thread of vertebral body nail 10 is a pyramidal structure, does not return pine when the pyramidal structure of the bottom of thread of vertebral body nail 10 can guarantee stand under load.Auxilliary nail 11 of vertebral body and bone grafting nail 12 cannot directly enter, and only just can be screwed into along hand of spiral when rotating, and do not return pine in the time of can guaranteeing these two kinds of screw stands under load like this.The crossed space layout of the auxilliary nail 11 of vertebral body nail 10 and vertebral body position on plate body 1 and the circular arc R of plate body 1 all can increase the intensity and the fixed stability of plate body.
Fig. 3 is according to the cross sectional representation of the preceding road of this utility model breast lumbar vertebra plate fixation system along Fig. 1 dotted line L.As shown in Figure 3, the vertebral body oncomelania mother 13 who is used for vertebral body nail 10 has double nuts structure, has grooving 15 on it, grooving 15 distortion produce when utilizing twisting be not parallel to bolt shaft to power effectively prevented the loosening of vertebral body oncomelania mother 13, strengthened tightness.Plate body 1 is in the circular arc R that transversely has bending along dotted line L, and this circular arc R designs according to human spine's anatomical structure.
By shown in Figure 3, vertebral body nail 10, vertebral body oncomelania female 13 all adopt sphere design A with the contact portion of plate body 1, and ball type of contact surface not only can effectively reduce the stress concentration of vertebral body nail 10, can also strengthen the stability maintenance of vertebral body nail 10.With first vertebral body nail hole slot 5 is example, concrete, first vertebral body nail hole slot 5 has the first sphere pit 16 and the second sphere pit 17, and the external diameter that vertebral body is followed closely 10 ailheads cooperates with the internal diameter size of the first sphere pit 16, and vertebral body oncomelania mother 13 size cooperates with the internal diameter size of the second sphere pit 17.After vertebral body nail 10 entered vertebral body, its terminal meeting be blocked by first vertebral body nail hole slot 5, and wherein, the first sphere pit 16 can prevent that vertebral body nail 10 from upwards sliding, and the second sphere pit 17 follows closely 10 to lower slider with having prevented vertebral body cooperating of vertebral body oncomelania mother 13.Hole slot on the plate body 1 when screw is subjected to load can outside expand, and the spherical groove that adopts of the contact site of plate body 1 and vertebral body nail 10 can be according to the different rigidity that change plate body of load, thereby have reduced stress concentration.In addition, as modification, the bone grafting nail also can adopt same sphere design with the contact portion of plate body.
The preceding road of the breast lumbar vertebra plate fixation system that this utility model disclosed can be with various suitable material manufacture, in preferred embodiment, it can adopt the manufacturing of material titanium alloy ti6al4v, wherein the elastic modelling quantity of this kind titanium alloy and skeleton are more approaching, good biocompatibility with human body, has the highly anti-fatigue performance, outstanding corrosion resistance is little to the growth effect of osseous tissue, postoperative can carry out the inspection of MRI (nuclear magnetic resonance imaging NMR (Nuclear Magnetic Resonance)-imaging) and CT (computedtomography electronic computer x-ray tomography).
Therefore, the preceding road of the breast lumbar vertebra plate fixation system that this utility model disclosed has the morphology of suitable compatriots' breast lumbar vertebra, can not produce slip in implantation process, can guarantee injured vertebra sections stability and can guarantee the advantage that intrasystem screw can not come off.
In the above-described embodiments, only this utility model has been carried out exemplary introduction, but those skilled in the art can carry out various modifications to this utility model after reading present patent application under the situation that does not break away from spirit and scope of the present utility model.
Claims (10)
1. the preceding road of a breast lumbar vertebra plate fixation system is characterized in that, the preceding road of described breast lumbar vertebra plate fixation system comprises:
Plate body, described plate body profile is similar to the K shape, and described plate body comprises first end plate, bridge board and the second end plate, and described plate body is provided with a plurality of hole slots;
Screw, described screw passes described hole slot;
Nut is used for fixing described screw.
2. the preceding road of breast lumbar vertebra according to claim 1 plate fixation system is characterized in that, described hole slot comprises vertebral body nail hole slot, vertebral body auxilliary nail hole slot and bone grafting groove.
3. the preceding road of breast lumbar vertebra according to claim 2 plate fixation system is characterized in that, described vertebral body nail hole slot comprises circular first vertebral body nail hole slot and strip and is parallel to second vertebral body nail hole slot of described plate body.
4. the preceding road of breast lumbar vertebra according to claim 2 plate fixation system is characterized in that, the auxilliary nail of described vertebral body hole slot comprises the first circular vertebral body auxilliary nail hole slot and strip and is parallel to the auxilliary nail of second vertebral body hole slot of described plate body.
5. the preceding road of breast lumbar vertebra according to claim 2 plate fixation system is characterized in that described bone grafting groove is strip and the hole slot that is parallel to described plate body, and described bone grafting groove is positioned on the described bridge board.
6. the preceding road of breast lumbar vertebra according to claim 2 plate fixation system is characterized in that, described screw comprises vertebral body nail, the auxilliary nail of vertebral body and bone grafting nail, and described vertebral body nail is longer than the auxilliary nail of described vertebral body.
7. the preceding road of breast lumbar vertebra according to claim 6 plate fixation system is characterized in that, following closely nut engaged with described vertebral body is the double nuts structure with grooving.
8. the preceding road of breast lumbar vertebra according to claim 6 plate fixation system is characterized in that, the bottom of thread of described vertebral body nail is a pyramidal structure.
9. the preceding road of breast lumbar vertebra according to claim 6 plate fixation system is characterized in that, the contact site of described vertebral body nail, bone grafting nail and described nut and described plate body is all the sphere design.
10. the preceding road of breast lumbar vertebra according to claim 1 plate fixation system is characterized in that, laterally being of described plate body is crooked circular-arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010203001605U CN201586057U (en) | 2010-01-06 | 2010-01-06 | Thorax lumbar vertebra front circuit board fixing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010203001605U CN201586057U (en) | 2010-01-06 | 2010-01-06 | Thorax lumbar vertebra front circuit board fixing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201586057U true CN201586057U (en) | 2010-09-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010203001605U Expired - Fee Related CN201586057U (en) | 2010-01-06 | 2010-01-06 | Thorax lumbar vertebra front circuit board fixing system |
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| CN (1) | CN201586057U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108186100A (en) * | 2018-02-09 | 2018-06-22 | 黄雁鸣 | The minimally invasive preceding road plate of Thoracolumbar disk |
-
2010
- 2010-01-06 CN CN2010203001605U patent/CN201586057U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108186100A (en) * | 2018-02-09 | 2018-06-22 | 黄雁鸣 | The minimally invasive preceding road plate of Thoracolumbar disk |
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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: 20100922 Termination date: 20120106 |