CN100553578C - Waist 5 vertebras of spinal column and the preceding road of sacrum 1 vertebra internal fixation steel plate - Google Patents
Waist 5 vertebras of spinal column and the preceding road of sacrum 1 vertebra internal fixation steel plate Download PDFInfo
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- CN100553578C CN100553578C CNB2008100695289A CN200810069528A CN100553578C CN 100553578 C CN100553578 C CN 100553578C CN B2008100695289 A CNB2008100695289 A CN B2008100695289A CN 200810069528 A CN200810069528 A CN 200810069528A CN 100553578 C CN100553578 C CN 100553578C
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Abstract
The invention discloses a kind of waist 5 vertebras and the preceding road of sacrum 1 vertebra internal fixation steel plate of spinal column, the one side with the vertebra bulk phase pastes of described internal fixation steel plate is made of four inclined-planes that are symmetrical distribution that link to each other respectively, formation is along the spinal column buckling with along the shape of spinal column transverse curvature, its angle along the spinal column buckling is 124～134 °, the angle of transverse curvature is 140～150 °, along spinal column longitudinally chord length be 28～32mm, be 30mm along the horizontal chord length of spinal column, internal fixation steel plate is provided with four fixing holes.It designs at Chinese's waist sacral position anatomical structure, the one side that itself and vertebra bulk phase paste adapts to Chinese's waist sacral anatomical structure fully along angle, radian, the length of spinal column buckling and transverse curvature, and with four fixing hole location, only just can form three-dimensional fixation to waist 5 vertebras and the preceding road of sacrum 1 vertebra with a block plate, can simplify operation process, reduce the difficulty of operation, can improve fixed stability and fastness again.
Description
Technical field
The present invention relates to the preceding road of a kind of medical spinal column internal fixation steel plate, particularly a kind of waist 5 vertebras of spinal column and the preceding road of sacrum 1 vertebra internal fixation steel plate.
Background technology
In the orthopaedics field, the preceding road of spinal column internal fixation is at various spinal diseases such as tumor of spine, tuberculosis, vertebral fracture and intervertebral disc disorders, implants effective internal fixation mode of internal fixation device in vivo.At present, in the internal fixation device of the preceding road of various spinal columns, the preceding road of the waist sacral safety steel plate (PACH) that is manufactured and designed by AM General (General Care) company is one of comparatively novel internal fixation device of using in field of spinal surgery in recent years, the preceding road of this waist sacral safety steel plate is two hole fixation steel plates, steel plate is long longitudinally along spinal column to be 32mm, wide is 12mm, its thick is 5mm, the binding face of steel plate and vertebral body has 130 ° or 150 ° of angles along the spinal column buckling, two fixing holes are set on the steel plate, passing fixing hole with two screws is fixed on steel plate on waist 5 vertebral bodys and sacrum 1 vertebral body, the back side of steel plate is welded with retaining titanium bar and extends in two locating holes, can screw by after prevent that screw from withdrawing from.The preceding road of this waist sacral safety steel plate has following distinguishing feature: 1, its shape meets the curved shape of vertebral body front side, helps to improve the standard and sagittal stability.2, its retaining titanium bar can prevent that screw from withdrawing from, and fixed steadiness is higher.But we find gradually also that in secular clinical practice this steel plate comes with some shortcomings: 1, this steel plate is the strip two hole steel plates of width 12mm, when carrying out the preceding road of waist sacral fixing operation, if adopting a block plate fixes with two screws, owing to be to adopt two point locations to fix, obviously there is deficiency in its fixed stability, therefore when carrying out the preceding road of waist sacral fixing operation, often need implant two block plates respectively, from different positions and angle the waist sacral is fixed, its operation process complexity, operating time is long, difficulty increases, but adopt two point locations to fix because every block plate remains, with regard to every block plate, still have the insufficient problem of fixed stability.If because of waist movement causes the fixing skew dislocation that takes place,, bring misery and financial burden behind the steel plate implant into body to the patient with regard to also carrying out reattachment surgery.2, the angle of this steel plate and radian are to design according to west ethnic group anatomy of spine characteristics, according to " practical osteoarthrosis Image Diagnosis " (Shandong science tech publishing house, calendar year 2001, the 133rd page) put down in writing, Chinese waist sacral angle is measured according to respectively making collinear intersection point along waist 5 anterior margin of vertebral body and rumpbone leading edge, the normal meansigma methods of its angular range is 129 °, so the preceding road of the waist sacral safety steel plate (PACH) that AM General (General Care) company manufactures and designs adopts 130 ° or 150 ° of two kinds of angles with the binding face of vertebral body, its angle can not meet Chinese's anatomy of spine characteristics fully, there is the imprecise phenomenon of fitting in the time of fixedly, is unfavorable for the fixing of Chinese waist 5 vertebral bodys and rumpbone.3, because spacing that two block plates are placed in the operation and angle are difficult to accurately grasp, its biomechanical stability can't guarantee fully.For these reasons, limited the preceding road of waist sacral safety steel plate (PACH) the extensive clinical practice of spinal surgery at home that AM General (General Care) company manufactures and designs greatly.Thus, need a kind of waist 5 vertebral bodys and the preceding road of sacrum 1 vertebral body internal fixation steel plate that can adapt to Chinese's waist sacral anatomical structure, and the preceding road internal fixation steel plate that improves the fixed stability of steel plate solves the problems referred to above, to satisfy the clinical practice of the sick preceding road of domestic spinal surgery waist sacral internal fixation, extremely important meaning is arranged on clinical medicine.
Summary of the invention
The objective of the invention is deficiency at above-mentioned prior art existence, a kind of waist 5 vertebras and the preceding road of sacrum 1 vertebra internal fixation steel plate of spinal column are provided, it designs at Chinese's waist sacral position anatomical structure, the one side of pasting with the vertebra bulk phase by internal fixation steel plate form along the spinal column buckling with along the shape of spinal column transverse curvature, make its crooked angle, radian, length adapts to Chinese's waist sacral anatomical structure fully, and adopt four fixing holes, only need just can form internal fixation to waist 5 vertebras and the preceding road of sacrum 1 vertebra with an internal fixation steel plate, can simplify operation process, reduce the difficulty of operation, can improve fixed stability and fastness again.
The object of the present invention is achieved like this: the one side with the vertebra bulk phase pastes of described waist 5 vertebras and the preceding road of sacrum 1 vertebra internal fixation steel plate is made of four inclined-planes that are symmetrical distribution that link to each other respectively, formation is along the spinal column buckling with along the shape of spinal column transverse curvature, it is 124～134 ° along the angle that forms between the laterally zygomorphic inclined-plane of spinal column buckling, it is 140～150 ° along the angle that forms between the symmetrical inclined-plane of spinal column transverse curvature, described internal fixation steel plate along spinal column longitudinally chord length be 28～32mm, along the horizontal chord length of spinal column is 30mm, described internal fixation steel plate is provided with four fixing holes that supply screw to pass, four fixing holes lay respectively at four jiaos of internal fixation steel plate, and the back side that described internal fixation steel plate and vertebra bulk phase paste one side is provided with and is used to prevent that the device that screw retreats from putting in the fixing hole intracavity.
Owing to adopted such scheme, waist 5 vertebras of the present invention and the preceding road of sacrum 1 vertebra internal fixation steel plate are compared with existing waist sacral preceding road safety steel plate (PACH), have the following advantages:
1. the one side with the vertebra bulk phase pastes with described waist 5 vertebras and the preceding road of sacrum 1 vertebra internal fixation steel plate is designed to be made of four inclined-planes that are symmetrical distribution that link to each other respectively, formation is along the spinal column buckling with along the shape of spinal column transverse curvature, make an internal fixation steel plate have the face that pastes mutually at waist 5 vertebras and sacrum 1 vertebra Qian Lu and waist sacral from four different angles thus, form stereoscopic three-dimensional location to resetting after the waist sacral operation by these four faces, its localized stability is guaranteed.
2. described waist 5 vertebras and the preceding road of sacrum 1 vertebra internal fixation steel plate are provided with four fixing holes that supply screw to pass, four fixing holes lay respectively at four jiaos of internal fixation steel plate, so just formed the location, four holes of an internal fixation steel plate, and the special construction of the locating surface of four different angles that are bent to form by four holes location and internal fixation steel plate vertical and horizontal combines, do not form and can fix by the dead of occurrence positions skew, intensity and stability to waist 5 vertebras and the preceding road of sacrum 1 vertebra internal fixation are improved, even under the stress of human body waist movement, internal fixation steel plate after operation is fixing can not produce skew yet, has guaranteed fixed stability thus.And under the internal fixation steel plate back side being used to of being provided with prevents device effect that screw retreats, the trip bolt that inserts in the fixing hole can't be become flexible retreat, fixed fastness also is guaranteed.Improved the safety coefficient behind waist 5 vertebras and the preceding road of the sacrum 1 vertebra internal fixation.
3. the angle along forming between the laterally zygomorphic inclined-plane of spinal column buckling of described waist 5 vertebras and the preceding road of sacrum 1 vertebra internal fixation steel plate is 124～134 °, it is 140～150 ° along the angle that forms between the symmetrical inclined-plane of spinal column transverse curvature, described internal fixation steel plate along spinal column longitudinally chord length be 28～32mm, along the horizontal chord length of spinal column is 30mm, this design is fit to Chinese waist sacral anatomical structure fully, waist 5 vertebras and the preceding road of sacrum 1 vertebra internal fixation steel plate with this structure are fixed Chinese waist sacral, can farthest adapt to, satisfy 129 ° of the normal meansigma methodss of Chinese waist sacral angle, the covering that the waist sacral angle of realization internal fixation steel plate and vertebra post matches is close to, can be attached to vertebral body front side surface of bone fully in the time of fixedly, fix thereby reach stable biomechanics.And the angle along forming between the laterally zygomorphic inclined-plane of spinal column buckling of internal fixation steel plate is decided to be 124～134 °, especially adopt 129 ° angle, when implementing operation, angle of bend by steel plate, can forcibly waist sacral angle be formalized in this angle, it restores accuracy height.
4. when adopting internal fixation steel plate of the present invention to implement operation, only need to implant a block plate and just can form spatial three-dimensional fixation, operative process is simplified, and operating time shortens dramatically, and its fixed fastness is better than adopting the fixed effect of two block plates of prior art.
The invention will be further described below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is the schematic rear view of internal fixation steel plate of the present invention;
Fig. 2 for internal fixation steel plate of the present invention with the vertebral body sketch map of veneer mutually;
Fig. 3 is that the A-A of Fig. 1 is to cutaway view;
Fig. 4 is that the B of Fig. 1 is to view.
In the accompanying drawing, 1 is internal fixation steel plate, and 2 is fixing hole, and 2a is an elliptical orifice, and 3 is die stop, and 3a is a double wedge, and 3b is the inclined-plane, and 4 is first inclined-plane, and 5 is second inclined-plane, and 6 is the 3rd inclined-plane, and 7 is the 4th inclined-plane, and 8 is anti-skidding groove.
The specific embodiment
Referring to Fig. 1 to Fig. 4, the one side with the vertebra bulk phase pastes of described waist 5 vertebras and the preceding road of sacrum 1 vertebra internal fixation steel plate 1 is made of four inclined-planes that are symmetrical distribution that link to each other respectively, and formation is along the spinal column buckling with along the shape of spinal column transverse curvature.Described internal fixation steel plate 1 is along between laterally zygomorphic first inclined-plane 4 and the 3rd inclined-plane 6 of spinal column buckling, the angle α that forms between second inclined-plane 5 and the 4th inclined-plane 7 is 124～134 °, the angle α of present embodiment is 129 °, with the normal meansigma methods of the waist sacral angle that satisfies Chinese's waist sacral anatomical structure fully.Described internal fixation steel plate 1 is along between symmetrical first inclined-plane 4 and second inclined-plane 5 of spinal column transverse curvature, and the angle β that forms between the 3rd inclined-plane 6 and the 4th inclined-plane 7 is 140～150 °, and the angle β of present embodiment is 150 °.Described internal fixation steel plate 1 along spinal column longitudinally chord length be 28～32mm, vertical chord length of present embodiment is 32mm, chord length is that 28mm also can reach effect same, is 30mm along the horizontal chord length of spinal column.Described internal fixation steel plate is 32mm along the arc length that the spinal column transverse curvature forms, this arc right central angle be 60 °.Described internal fixation steel plate 1 is provided with four 2, four fixing holes 2 of fixing hole that pass for screws and lays respectively at four jiaos of internal fixation steel plate 1.Described fixing hole 2 is elliptical orifice 2a in the aperture of internal fixation steel plate 1 back side one end, and this elliptical orifice 2a has the inclined-plane that sinks to for screw.Described internal fixation steel plate 1 back side is provided with and is used to prevent that the device that screw retreats from putting in fixing hole 2 intracavity, this is used to prevent device that screw retreats for being embedded at internal fixation steel plate 1 back side and welding fixed die stop 3, and described die stop 3 is the die stop of titanium alloy material.Described die stop 3 is set to two, each die stop 3 correspondence is embedded in the groove that is provided with between internal fixation steel plate 1 vertical laterally zygomorphic two fixing holes 2, its two ends puts among the elliptical orifice 2a of two fixing holes 2 respectively and is hanging shape, the stage casing of die stop 3 has horizontal double wedge 3a and is used to be embedded the location, occur position skew when preventing to be embedded, it is fixing with welding that die stop 3 is embedded in the groove at internal fixation steel plate 1 back side back.The end that described die stop 3 puts in fixing hole 2 intracavity has the inclined-plane 3b that allows screw insert smoothly, screw is after this inclined-plane enters in the fixing hole 2 of back, its axial end is placed restrictions on by die stop 3 and is retreated, make screw that internal fixation steel plate 1 is fastened on the vertebral body and can not withdraws from, avoid leaving vertebral body because of screw loosening causes internal fixation steel plate 1.The maximum ga(u)ge of described internal fixation steel plate 1 is 5mm, and its thickness that position of fixing hole 2 is set is 5mm.Pasting on four inclined-planes that are symmetrical distribution that link to each other respectively simultaneously with the vertebra bulk phase of described internal fixation steel plate 1 is provided with tiny anti-skidding groove 8, contact with vertebral body by these anti-skidding grooves 8, internal fixation steel plate 1 and vertebral body are close to fixingly can be fitted tightlyer, fixing more firm.
The present invention not only is confined to the foregoing description, described internal fixation steel plate 1 is along between laterally zygomorphic first inclined-plane 4 and the 3rd inclined-plane 6 of spinal column buckling, the angle α that forms between second inclined-plane 5 and the 4th inclined-plane 7 is for also being made as 124 °, 134 °, to satisfy the difference of angle α in the waist sacral angle of 124～134 ° scope endoadaptation Chinese waist sacral anatomical structure.With the exception of this, all the other structures are same as the previously described embodiments.
Claims (10)
1. waist 5 vertebras of a spinal column and the preceding road of sacrum 1 vertebra internal fixation steel plate, it is characterized in that: the one side with the vertebra bulk phase pastes of described waist 5 vertebras and the preceding road of sacrum 1 vertebra internal fixation steel plate is made of four inclined-planes that are symmetrical distribution that link to each other respectively, formation is along the spinal column buckling with along the shape of spinal column transverse curvature, it is 124～134 ° along the angle that forms between the laterally zygomorphic inclined-plane of spinal column buckling, it is 140～150 ° along the angle that forms between the symmetrical inclined-plane of spinal column transverse curvature, described internal fixation steel plate along spinal column longitudinally chord length be 28～32mm, along the horizontal chord length of spinal column is 30mm, described internal fixation steel plate is provided with four fixing holes that supply screw to pass, four fixing holes lay respectively at four jiaos of internal fixation steel plate, and the back side that described internal fixation steel plate and vertebra bulk phase paste one side is provided with and is used to prevent that the device that screw retreats from putting in the fixing hole intracavity.
2. waist 5 vertebras of spinal column according to claim 1 and the preceding road of sacrum 1 vertebra internal fixation steel plate is characterized in that: described internal fixation steel plate is 32mm along the arc length that the spinal column transverse curvature forms, this arc right central angle be 60 °.
3. waist 5 vertebras of spinal column according to claim 1 and the preceding road of sacrum 1 vertebra internal fixation steel plate, it is characterized in that: described is 124 ° along the angle that forms between the laterally zygomorphic inclined-plane of spinal column buckling.
4. waist 5 vertebras of spinal column according to claim 1 and the preceding road of sacrum 1 vertebra internal fixation steel plate, it is characterized in that: described is 129 ° along the angle that forms between the laterally zygomorphic inclined-plane of spinal column buckling.
5. waist 5 vertebras of spinal column according to claim 1 and the preceding road of sacrum 1 vertebra internal fixation steel plate, it is characterized in that: described is 134 ° along the angle that forms between the laterally zygomorphic inclined-plane of spinal column buckling.
6. according to waist 5 vertebras and the preceding road of the sacrum 1 vertebra internal fixation steel plate of the arbitrary described spinal column of claim 1～5, it is characterized in that: the thickness that described internal fixation steel plate is provided with the fixing hole position is 5mm.
7. according to waist 5 vertebras and the preceding road of the sacrum 1 vertebra internal fixation steel plate of the arbitrary described spinal column of claim 1～5, it is characterized in that: described fixing hole is an elliptical orifice in the aperture of the back side one end of internal fixation steel plate and vertebra bulk phase subsides one side.
8. waist 5 vertebras of spinal column according to claim 7 and the preceding road of sacrum 1 vertebra internal fixation steel plate is characterized in that: described elliptical orifice has the inclined-plane that sinks to for screw.
9. waist 5 vertebras of spinal column according to claim 1 and the preceding road of sacrum 1 vertebra internal fixation steel plate, it is characterized in that: the described device that is used to prevent that screw from retreating is to be embedded at internal fixation steel plate and vertebra bulk phase to paste the back side of one side and weld fixed die stop, and the end that this die stop puts in the fixing hole intracavity has the inclined-plane that allows screw insert smoothly.
10. waist 5 vertebral bodys of spinal column according to claim 9 and the preceding road of sacrum 1 vertebral body internal fixation steel plate, it is characterized in that: described die stop is the die stop of titanium alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100695289A CN100553578C (en) | 2008-03-31 | 2008-03-31 | Waist 5 vertebras of spinal column and the preceding road of sacrum 1 vertebra internal fixation steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100695289A CN100553578C (en) | 2008-03-31 | 2008-03-31 | Waist 5 vertebras of spinal column and the preceding road of sacrum 1 vertebra internal fixation steel plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101249018A CN101249018A (en) | 2008-08-27 |
| CN100553578C true CN100553578C (en) | 2009-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2008100695289A Expired - Fee Related CN100553578C (en) | 2008-03-31 | 2008-03-31 | Waist 5 vertebras of spinal column and the preceding road of sacrum 1 vertebra internal fixation steel plate |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105030315A (en) * | 2015-08-24 | 2015-11-11 | 苏州市康力骨科器械有限公司 | Steel plate for locking foot bone in multidirectional mode |
| CN108904028B (en) * | 2018-04-26 | 2020-09-01 | 台州孚亚电机有限公司 | Improved angle bone fracture plate |
| CN113813033A (en) * | 2021-09-24 | 2021-12-21 | 浙江省立同德医院 | Angle-adjustable self-locking type lumbosacral anterior channel vertebral arch fixing nail plate fixing method and system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2330320Y (en) * | 1998-07-14 | 1999-07-28 | 钱普健 | Anterior fixer of spine |
| US6565571B1 (en) * | 1998-10-19 | 2003-05-20 | Scient'x | Anterior osteosynthesis plate for lumbar vertebrae or sacral lumbar vertebra and instrument for positioning same |
| CN1663538A (en) * | 2004-03-01 | 2005-09-07 | 王岩 | Vetebrae anterior biological osteogenesis-inducing type internal fixing device |
| WO2006022644A1 (en) * | 2004-07-26 | 2006-03-02 | Innovative Spinal Design, Inc. | Bone fixation plate |
| CN101048110A (en) * | 2004-08-12 | 2007-10-03 | 华沙整形外科股份有限公司 | Antero-lateral plating systems for spinal stabilization |
-
2008
- 2008-03-31 CN CNB2008100695289A patent/CN100553578C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2330320Y (en) * | 1998-07-14 | 1999-07-28 | 钱普健 | Anterior fixer of spine |
| US6565571B1 (en) * | 1998-10-19 | 2003-05-20 | Scient'x | Anterior osteosynthesis plate for lumbar vertebrae or sacral lumbar vertebra and instrument for positioning same |
| CN1663538A (en) * | 2004-03-01 | 2005-09-07 | 王岩 | Vetebrae anterior biological osteogenesis-inducing type internal fixing device |
| WO2006022644A1 (en) * | 2004-07-26 | 2006-03-02 | Innovative Spinal Design, Inc. | Bone fixation plate |
| CN101048110A (en) * | 2004-08-12 | 2007-10-03 | 华沙整形外科股份有限公司 | Antero-lateral plating systems for spinal stabilization |
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| CN101249018A (en) | 2008-08-27 |
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Granted publication date: 20091028 Termination date: 20120331 |