CN101816586A - Pedicle screw pressurizing and propping fixation clamp - Google Patents
Pedicle screw pressurizing and propping fixation clamp Download PDFInfo
- Publication number
- CN101816586A CN101816586A CN 201010119992 CN201010119992A CN101816586A CN 101816586 A CN101816586 A CN 101816586A CN 201010119992 CN201010119992 CN 201010119992 CN 201010119992 A CN201010119992 A CN 201010119992A CN 101816586 A CN101816586 A CN 101816586A
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- clamp
- slide rail
- pressurizing
- sliding
- slip
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- 238000011084 recovery Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 230000003902 lesion Effects 0.000 description 2
- 208000032984 Intraoperative Complications Diseases 0.000 description 1
- 206010058046 Post procedural complication Diseases 0.000 description 1
- 208000035965 Postoperative Complications Diseases 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
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Abstract
The invention relates to a pedicle screw pressurizing and propping fixation clamp for pressurizing and propping the built-in pedicle screw. The fixation clamp is characterized by comprising a slide rail, a limiting clamp and a sliding clamp, wherein the slide rail has a long rod structure on which the sliding clamp can be clamped to slide; one end of the slide rail fixes the limiting clamp, and the other end of the slide rail is a free end to be sleeved in the sliding clamp; the limiting clamp comprises a limiting chuck and a fixing head for connecting the limiting chuck with the slide rail; the sliding clamp comprises a sliding chuck and a sliding fixing structure which is used for making the sliding clamp slide on the slide rail and fixing the sliding clamp to the slide rail; and both the sliding chuck and the limiting chuck are positioned on the same side of the slide rail and can rotate universally opposite to the slide rail. The fixed points for the limiting clamp as well as the sliding clamp and the slide rail form supporting points, so that screw holder structures which are connected with adjacent pedicle screws are clamped by the limiting clamp and the sliding clamp respectively during use so as to form a lever structure using the two fixed points as the supporting points.
Description
Technical field
The present invention relates to a kind of spinal surgery fusion Wicresoft internal fixation auxiliary reset technical field, especially relate to the pedicle screw pressurizing and propping fixation clamp of a kind of Wicresoft pedicle of vertebral arch resetting means.
Background technology
Spinal column way of escape nail-stick system is a kind of important internal fixation mode, can provide preferably biomechanical stability to promote spinal fusion.The advantage of spinal column way of escape nail-stick system is by pedicle of vertebral arch screw to be screwed in the vertebral body, adjusting is fixed on active forces such as strutting between the pedicle screw adjacent in the spinal column short segment, pressurization, three-dimensional correction and strong internal fixation are provided, recover the normal alignment of spinal column.Pedicle screw can rigidly fix vertebral levels, promotes to merge between vertebral body, with integral body of the affixed one-tenth of vertebral levels, prevents the vertebral body displacement, alleviating pain.Minimally invasive spine way of escape nail-stick system has reduced to limit the damage of surrounding tissue greatly, makes patient obtain rehabilitation with the shortest time, has alleviated its financial burden.
Reset for original vertebra abnormality is expanded, and the subside height of vertebral body of efficient recovery is arranged, need carry out pressurizing and propping and fixing the vertebral body of subsiding.Chinese invention patent: pedicle vitro restorer (application number: 200810123915.6; The applying date: 2008-05-29), disclose a kind of lengthening pedicle of vertebral arch hollow screw system, comprised pedicle screw and strut the self-locking that pressure rod constitutes strutting pressue device by extension rod, positive left-hand thread.By strutting and pressurization external applying, sick vertebra is resetted, and strut pressue device by self-locking and keep the softened state that the disease vertebra resets, efficient recovery can be arranged and keep the height of fractured vertebral body.Wherein, the head of extension rod is fixed on the afterbody of pedicle screw, be used to prolong the arm of force, radial two through holes are set on the afterbody sustained height of extension rod, positive left-hand thread struts the through hole of extension rod afterbody that pressure rod passes two pedicle screws of adjacent setting, strut the distance that the nut tap that is provided with in the middle part of the pressure rod is adjusted two extension rod afterbodys by rotating positive left-hand thread, realize pedicle screw is strutted the function of pressurization.
But the lengthening pedicle of vertebral arch hollow screw system of foregoing invention patent can only be by applying active force at two extension rod afterbodys, indirectly pedicle screw strutted or pressurize by the distance of adjusting two extension rod afterbodys.Because active force directly acts on two extension rod afterbodys, and do not have fulcrum, can not guarantee vertebra is pressurizeed effectively or struts as lever.It applies active force by nut tap simultaneously, owing to be subjected to the influence of factors such as frictional force, force transmission is not high to the efficient of pedicle screw.
Summary of the invention
Can not strut problem with pressurized operation to the pedicle screw that the spinal lesion sections is inserted accurately and effectively in order to solve aid of the prior art, the invention provides a kind of aid of new Wicresoft's way of escape internal fixation nail bar system, a kind of pedicle screw pressurizing and propping fixation clamp.Be used for way of escape internal fixation nail bar system, after hypocentrum is inserted pedicle screw on the sections that subsides, misplaces adjacent, adjacent awl nut screw realized pressurization and distraction reduction operation by Wicresoft, use simple and functioning efficiency high.Can help the doctor to realize accurately fixedly lesion segment clinically, reduce unnecessary damage, reduce operating time, thereby reduce patient's post-operative complication incidence rate, shorten rehabilitation duration.
Technical scheme of the present invention is as follows:
A kind of pedicle screw pressurizing and propping fixation clamp is used for the pedicle screw of having inserted is pressurizeed and struts operation, and it is characterized in that: it comprises slide rail, position limiting clamp and slip clamp; Described slide rail is a long rod structure that slip clamp is slided thereon, and described slide rail one end is position limiting clamp fixedly, and the other end is a free end, is used to be inserted in slip clamp; Described position limiting clamp comprises spacing chuck and the fixing head that is used for spacing chuck is connected with slide rail, and described slip clamp comprises that sliding clamp and being used to makes slip clamp slide on the slide rail and be fixed in slip fixed structure on the slide rail; Described sliding clamp and described spacing chuck all are positioned on the side surface of described slide rail, and can be with respect to the universal rotation of described slide rail.
The cross sectional shape of described slide rail is rectangle, trapezoidal, ellipse or sports filed track shape.
It is characterized in that being provided with long recess vertically on the opposite side surface of slide rail.
Successive cambered surface is set on the two side of described groove.
Described slip fixed structure comprises a sleeve and a set bolt, the periphery of described telescopic inner chamber and described slide rail is suitable closes, a described telescopic side connects described sliding clamp, and the another side relative with described side is provided with and the suitable screw of described set bolt.
The screw rod of described set bolt and described long recess are suitable.
Described sliding clamp and described spacing chuck are circular sleeve, have screw on the barrel of described circular sleeve.
The sidewall of described sliding clamp and described spacing chuck is provided for fixedlying connected the fastening bolt of holding pin structure of pedicle screw.
The described pin structure of holding is for sending the nail sleeve or holding the nail bar.
Fixing point between fixing point between described spacing chuck and the fixing head and described sliding clamp and the described slip fixed structure all is positioned at an end of described spacing chuck and described sliding clamp.
Technique effect of the present invention is:
Pressurizing and propping fixation clamp of the present invention comprises slide rail, position limiting clamp and slip clamp, and slide rail is the long rod structure that a slip clamp can be slided thereon, and the one end is position limiting clamp fixedly, and the other end is a free end, to be inserted in slip clamp.The fixing point of position limiting clamp and slip clamp and slide rail forms fulcrum, clamps the pin structure of holding that is connected with the pedicle screw of adjacent setting respectively by position limiting clamp and slip clamp in use, and forming with two fixing points is the lever construction of fulcrum.
The present invention is because fixing point is divided into free end and stiff end with the two ends of spacing chuck and sliding clamp, spacing chuck and sliding clamp can universally rotate simultaneously, therefore can be easily according to the different operating that pressurizes and strut, change the free end of spacing chuck and sliding clamp and the relative position of fixing point, change the arm of force of lever construction successively, to be applicable to different operating.
Pressurizing and propping fixation clamp of the present invention is owing to have said structure, therefore can strut and pressurized operation awl nut screw easily, fast and exactly, realized the instrumentation rather than the manual operations that strut and pressurize, reduced operative doctor reset operation complexity, and instrument is simple and easy to usefulness, helps to have saved operating time, avoids unnecessary surgical injury, be beneficial to patient's post-operative recovery, improve the actual effect of internal fixation effectively.
Description of drawings
Fig. 1 is the structural representation of pressurizing and propping fixation clamp of the present invention
Fig. 2 is a slip clamp structural representation of the present invention
Wherein: the 1-slide rail; The continuous cambered surface of 11-; The 2-position limiting clamp; The spacing chuck of 21-; The 22-fixing head; The 3-slip clamp; The 31-sliding clamp; 32-slip fixed structure; The 321-sleeve; The 322-set bolt; The 4-screw.
The specific embodiment
As shown in Figure 1, pressurizing and propping fixation clamp of the present invention comprises slide rail 1, position limiting clamp 2 and slip clamp 3.Wherein slide rail 1 is a long rod structure, and an end fixedly installs position limiting clamp 2, and the other end is for can be inserted in the free end of slip clamp 3, and slip clamp 3 can be free to slide on slide rail 1.For slip clamp 3 is not rotated with respect to slide rail 1, the cross sectional shape of slide rail 1 is set to sports filed track shape, and slip clamp 3 and slide rail 1 belled sleeve also are set to the sports filed track shape that adapts with slide rail 1 simultaneously.Position limiting clamp 2 comprises spacing chuck 21 and the fixing head 22 that is used for the position limiting clamp chuck is connected with slide rail 1, slip clamp 3 comprises sliding clamp 31 and is used to make slip clamp 3 to slide on slide rail 1, and is located the slip fixed structure 32 of certain point on slide rail 1 when needed.Spacing chuck 21 and sliding clamp 31 all are positioned at the homonymy of slide rail 1, and spacing chuck 21 and sliding clamp 31 can rotate with respect to slide rail 1 everything.Spacing chuck 21 and sliding clamp 31 all can with by send the nail sleeve or hold the nail bar to hold pin structure suitable, what be connected with adjacent pedicle screw holds pin structure and can be separately fixed on spacing chuck 21 and the sliding clamp 31.At operative site, slide rail 1 towards a side of holding pin structure, is defined as and closely holds the pin structure side, opposite side relative with closely sending nail sleeve side on the slide rail 1 is for far holding the pin structure side.Spacing chuck 21 and sliding clamp 31 all are positioned at closely holds the pin structure side, holds pin structure in order to clamping, with the indirect securement pedicle screw.For can better slip clamp 3 be positioned at slide rail 1 a bit, on the surface of far holding the pin structure side of slide rail 1, be provided with long recess vertically, continuous cambered surface 11 is set on the two side of groove.
Fixing point between fixing point between spacing chuck 21 and the fixing head 22 and sliding clamp 31 and the slip fixed structure 32 all is positioned at an end of spacing chuck 21 and sliding clamp 31, be fixing point all away from the center of gravity of spacing chuck 21 and sliding clamp 31, the two ends of spacing chuck 21 and sliding clamp 31 can be divided into stiff end and free end thus.When carrying out the pressurized operation of pedicle screw, the free end of spacing chuck 21 and sliding clamp 31 is turned to the top of fixing point, reduction forceps struts the pin structure of holding that is positioned at slide rail 1 top, and then two to hold pin structure be herringbone, and two pedicle screws are realized pressurized operation.When operation of strutting of carrying out pedicle screw, the free end of spacing chuck 21 and sliding clamp 31 is turned to the below of fixing point, reduction forceps struts the pin structure of holding that is positioned at slide rail 1 below, and then two to hold pin structure be positive splayed, and two pedicle screws realize strutting operation.
As shown in Figure 2, slip fixed structure 32 comprises a sleeve 321 and a set bolt 322, and sleeve 321 is used to be enclosed within slide rail 1 enterprising line slip, and set bolt 322 can be by tightening or loosening location or the adjustment that is implemented on the slide rail 1.The periphery of the inner chamber of sleeve 321 and slide rail 1 is suitable closes, one side of sleeve 321 connects sliding clamp 31, the another side relative with this side is provided with the screw suitable with set bolt 322, and sliding clamp 31 is universal being rotationally connected with the connected mode of sleeve 321.The groove of the screw rod of set bolt 322 and slide rail 1 is suitable, can probe into groove with fixing slip clamp 3, and the screw diameter of set bolt 322 is with cambered surface 11 is suitable continuously simultaneously.For pin structure is held in clamping better, spacing chuck 21 and sliding clamp 31 are preferably and can be enclosed within the circular sleeve of holding on the nail bar, have the screw 4 that can be used for being provided with bolt on the barrel of circular sleeve.
Should be pointed out that the above specific embodiment can make those skilled in the art more fully understand the invention, but do not limit the present invention in any way creation.Therefore; although this description has been described in detail the invention with reference to drawings and Examples; but; those skilled in the art are to be understood that; still can make amendment or be equal to replacement the invention; in a word, all do not break away from the technical scheme and the improvement thereof of the spirit and scope of the invention, and it all should be encompassed in the middle of the protection domain of the invention patent.
Claims (10)
1. pedicle screw pressurizing and propping fixation clamp is used for the pedicle screw of having inserted is pressurizeed and struts operation, and it is characterized in that: it comprises slide rail, position limiting clamp and slip clamp; Described slide rail is a long rod structure that slip clamp is slided thereon, and described slide rail one end is position limiting clamp fixedly, and the other end is a free end, is used to be inserted in slip clamp; Described position limiting clamp comprises spacing chuck and the fixing head that is used for spacing chuck is connected with slide rail, and described slip clamp comprises that sliding clamp and being used to makes slip clamp slide on the slide rail and be fixed in slip fixed structure on the slide rail; Described sliding clamp and described spacing chuck all are positioned at the homonymy of described slide rail, and can be with respect to the universal rotation of described slide rail.
2. pressurizing and propping fixation clamp according to claim 1 is characterized in that: the cross sectional shape of described slide rail is rectangle, trapezoidal, ellipse or sports filed track shape.
3. pressurizing and propping fixation clamp according to claim 1 and 2 is characterized in that: it is characterized in that a slide rail side surface relative with described sliding clamp with described spacing chuck is provided with long recess.
4. pressurizing and propping fixation clamp according to claim 3 is characterized in that: successive cambered surface is set on the two side of described groove continuously.
5. pressurizing and propping fixation clamp according to claim 1, it is characterized in that: described slip fixed structure comprises a sleeve and a set bolt, the periphery of described telescopic inner chamber and described slide rail is suitable closes, a described telescopic side connects described sliding clamp, and the another side relative with described side is provided with and the suitable screw of described set bolt.
6. pressurizing and propping fixation clamp according to claim 5 is characterized in that: the screw rod of described set bolt and described long recess are suitable.
7. pressurizing and propping fixation clamp according to claim 1 is characterized in that: described sliding clamp and described spacing chuck are circular sleeve, have screw on the sidewall of described circular sleeve.
8. according to claim 1 or 7 described pressurizing and propping fixation clamps, it is characterized in that: the sidewall of described sliding clamp and described spacing chuck is provided for fixedlying connected the fastening bolt of holding pin structure of pedicle screw.
9. pressurizing and propping fixation clamp according to claim 8 is characterized in that: the described pin structure of holding is for sending the nail sleeve or holding the nail bar.
10. according to claim 1 or 7 described pressurizing and propping fixation clamps, it is characterized in that: the fixing point between fixing point between described spacing chuck and the fixing head and described sliding clamp and the described slip fixed structure all is positioned at an end of described spacing chuck and described sliding clamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101199921A CN101816586B (en) | 2010-03-08 | 2010-03-08 | Pedicle screw pressurizing and propping fixation clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101199921A CN101816586B (en) | 2010-03-08 | 2010-03-08 | Pedicle screw pressurizing and propping fixation clamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101816586A true CN101816586A (en) | 2010-09-01 |
| CN101816586B CN101816586B (en) | 2011-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101199921A Active CN101816586B (en) | 2010-03-08 | 2010-03-08 | Pedicle screw pressurizing and propping fixation clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101816586B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102727295A (en) * | 2012-07-07 | 2012-10-17 | 苏州市康力骨科器械有限公司 | Minimally invasive opening pressurizer |
| CN106388887A (en) * | 2016-08-31 | 2017-02-15 | 左振柏 | Achilles tendon suture device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2214802Y (en) * | 1994-08-16 | 1995-12-13 | 侯树勋 | Lifting-pulling reduction fixator for lumbar spondylolisthesis |
| CN2226921Y (en) * | 1995-03-20 | 1996-05-15 | 蒋化龙 | Multifunction vertebral column reduction fixer |
| EP0645986B1 (en) * | 1992-06-19 | 1997-03-26 | ROUSSOULY, Pierre | Spinal therapy apparatus |
| JPH0998983A (en) * | 1995-10-06 | 1997-04-15 | Robaato Read Shokai:Kk | Vertebra fixing device |
| US20060264937A1 (en) * | 2005-05-04 | 2006-11-23 | White Patrick M | Mobile spine stabilization device |
| EP1161191B1 (en) * | 1999-03-16 | 2008-02-20 | Societe De Fabrication De Materiel Orthopedique Sofamor | Spinal osteosynthesis instrumentation |
-
2010
- 2010-03-08 CN CN2010101199921A patent/CN101816586B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0645986B1 (en) * | 1992-06-19 | 1997-03-26 | ROUSSOULY, Pierre | Spinal therapy apparatus |
| CN2214802Y (en) * | 1994-08-16 | 1995-12-13 | 侯树勋 | Lifting-pulling reduction fixator for lumbar spondylolisthesis |
| CN2226921Y (en) * | 1995-03-20 | 1996-05-15 | 蒋化龙 | Multifunction vertebral column reduction fixer |
| JPH0998983A (en) * | 1995-10-06 | 1997-04-15 | Robaato Read Shokai:Kk | Vertebra fixing device |
| EP1161191B1 (en) * | 1999-03-16 | 2008-02-20 | Societe De Fabrication De Materiel Orthopedique Sofamor | Spinal osteosynthesis instrumentation |
| US20060264937A1 (en) * | 2005-05-04 | 2006-11-23 | White Patrick M | Mobile spine stabilization device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102727295A (en) * | 2012-07-07 | 2012-10-17 | 苏州市康力骨科器械有限公司 | Minimally invasive opening pressurizer |
| CN102727295B (en) * | 2012-07-07 | 2014-06-18 | 苏州市康力骨科器械有限公司 | Minimally invasive opening pressurizer |
| CN106388887A (en) * | 2016-08-31 | 2017-02-15 | 左振柏 | Achilles tendon suture device |
| CN106388887B (en) * | 2016-08-31 | 2019-12-17 | 左振柏 | Achilles tendon sewing equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101816586B (en) | 2011-12-07 |
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Application publication date: 20100901 Assignee: TIBET DEKANG MEDICAL DEVICES CO.,LTD. Assignor: BEIJING NATON TECHNOLOGY GROUP Co.,Ltd. Contract record no.: 2013110000043 Denomination of invention: Pedicle screw pressurizing and propping fixation clamp Granted publication date: 20111207 License type: Exclusive License Record date: 20130812 |
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Effective date of registration: 20240223 Address after: G356, 3rd floor, building 1, yard 9, CHENGWAN street, Haidian District, Beijing 100094 Patentee after: Beijing natong Medical Technology Holding Co.,Ltd. Guo jiahuodiqu after: Zhong Guo Address before: 100082 room 8-2-1201, ocean view area 15, Desheng West Street, Haidian District, Beijing. Patentee before: BEIJING NATON TECHNOLOGY GROUP Co.,Ltd. Guo jiahuodiqu before: Zhong Guo |