CN101999930B - Positioning guider for embedding pedicle screw of lower cervical spine - Google Patents
Positioning guider for embedding pedicle screw of lower cervical spine Download PDFInfo
- Publication number
- CN101999930B CN101999930B CN201010572649A CN201010572649A CN101999930B CN 101999930 B CN101999930 B CN 101999930B CN 201010572649 A CN201010572649 A CN 201010572649A CN 201010572649 A CN201010572649 A CN 201010572649A CN 101999930 B CN101999930 B CN 101999930B
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- pedicle
- sliding tray
- cervical vertebra
- screw
- sliding chute
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- Orthopedics, Nursing, And Contraception (AREA)
Abstract
The invention discloses a positioning guider for embedding a pedicle screw of a lower cervical spine. The positioning guider comprises a fixed positioning pin (1) and a sliding chute (2) which is hinged with the arm of the fixed positioning pin (1), wherein the sliding chute (2) is cambered; angular measurement scale marks (3) are uniformly formed on the inner side face of the sliding chute (2); a bushing hole (4) which penetrates through the side face of the sliding chute (2) is formed in the sliding chute (2); the central line of the bushing hole (4) directs at the center of circle of the sliding chute (2); and the distance O'O from the tip of the fixed positioning pin (1) to the center of circle of the sliding chute (2) is 1.0 to 3.5mm. The guider determines the direction and the position of the pedicle screw through the fixed positioning pin and the bushing hole on the sliding chute, has a simple structure and is convenient to operate, improves the accuracy and the safety for embedding the pedicle screw of the lower cervical spine in the posterior surgery, reduces the occurrence of related complicating diseases and is suitable to be popularized and applied in most of primary health organizations.
Description
Technical field
The present invention relates to a kind of operating theater instruments, instruct the operator way of escape accurately to insert down the pedicle for cervical vertebra arch screw in a kind of art, avoid being strayed into canalis spinalis and damage vertebrarterial operating theater instruments but refer in particular to, specifically a kind of following pedicle for cervical vertebra arch screw that is used for Wicresoft's cervical vertebra surgical field is inserted locating guider.
Background technology
Pedicle screw (pedicle screw, PS) technology development since coming out the eighties in last century has been widely used in the operative treatment of illness such as spinal column degeneration, centrum olisthe, spinal canal stenosis, vertebral fracture, deformity, metastatic tumor of bone, spinal column unstability rapidly.Bibliographical information, the pedicle screw technology has reliable biomechanics superiority and higher bone fusion rate in the application of cervical vertebra surgery.The anthropometry studies show that, it is little that pedicle for cervical vertebra arch is dissected external diameter than the breast pedicle of lumbar vertebral arch, and range of variation is big, and adjoins important structure such as vertebral artery, nerve root, spinal cord, and it is big accurately to put the nail difficulty.It all is extremely dangerous that the pedicle of vertebral arch of any direction is worn out consequence, or even catastrophic.There is sizable risk in traditional free-hand nail method of putting, and with familiarity, the surgical experience of patient's anatomical structure, operation skill etc. are closely related.And the existing common volume of nail guider of putting is bigger, heavy, and range of application is narrower, and cost is higher; On the other hand, the existing computer navigation technology that adopts is carried out inserting of pedicle nail, and it costs an arm and a leg, and general hospital can't be equipped with this equipment or the patient is difficult to bear its high expense.Therefore for the consideration of safety and operation cost, way of escape pedicle of cervical vertebra screw related surgical generally can only be confined to the tertiary hospitals spinal surgery for a long time to be carried out.
Summary of the invention
The objective of the invention is at the free-hand risk of nail and the defective of existing apparatus of putting, provide to improve and put the nail accuracy, reduce and to put the following pedicle for cervical vertebra arch screw that the nail related complication takes place and insert locating guider.
The objective of the invention is to solve by the following technical programs:
A kind of pedicle for cervical vertebra arch screw is down inserted locating guider, it comprises stationary positioned pin 1 and is hinged on sliding tray on the stationary positioned pin pin arm, described sliding tray is circular arc, evenly be carved with the angle measuring calibration line on the medial surface of sliding tray, the inside of sliding tray is provided with runs through the lateral collar aperture of sliding tray, and the centrage of collar aperture points to the center of circle of sliding tray; The described stationary positioned pin needle point and the sliding tray center of circle be 1.0-3.5mm apart from O ' O.
Sliding tray is provided with and tightens up screw, describedly tightens up the two ends that screw is positioned at the angle measuring calibration line.
The angulation scope of angle measuring calibration line is 0 °-60 °, and described 0 ° of graduation mark is positioned on the vertical direction.
Angle between 0 ° of graduation mark of stationary positioned pin and angle measuring calibration line is 0 °-45 °.
Branches such as described sliding tray inside are provided with collar aperture.
Described collar aperture is positioned at the scope of angle measuring calibration line.
The present invention has following advantage compared to existing technology:
Pedicle for cervical vertebra arch screw down of the present invention is inserted locating guider is determined pedicle screw by the collar aperture on stationary positioned pin and the sliding tray direction and position, simple in structure, easy to operate, the pedicle for cervical vertebra arch screw is inserted under having improved in the posterior approach accuracy and safety have reduced the generation that pedicle screw is put the nail related complication.
Down pedicle for cervical vertebra arch screw of the present invention inserts that the LOCATION OF PEDICLE SCREW FIXATION that locating guider inserts is reliable, the risk that comes off is little, is applicable in vast basic health mechanism to apply.
Description of drawings
Accompanying drawing 1 is a structural representation of the present invention;
Accompanying drawing 2 concerns sketch map for the stationary positioned pin needle point near-end of the present invention and the sliding tray center of circle;
Accompanying drawing 3 is a user mode sketch map of the present invention.
Wherein: 1-stationary positioned pin; 2-sliding tray; 3-angle measuring calibration line; 4-collar aperture; 5-tighten up screw 6-working column; 7-pedicle screw.
The specific embodiment
The present invention is further illustrated below in conjunction with accompanying drawing and embodiment.
As Figure 1-3: a kind of pedicle for cervical vertebra arch screw is down inserted locating guider, it comprises stationary positioned pin 1 and is hinged on sliding tray 2 on the stationary positioned pin 1 pin arm, described sliding tray 2 is circular arc, evenly is carved with angle measuring calibration line 3 on the medial surface of sliding tray 2; Sliding tray 2 be provided be positioned at angle measuring calibration line 3 two ends tighten up screw 5, in order to tighten up sliding tray 2 and and then the fixing working column 6 that inserts collar aperture 4; Sliding tray 2 inside are gone back the five equilibrium setting and are run through sliding tray 2 lateral collar aperture 4, and the centrage of collar aperture 4 points to the center of circle of sliding tray 2, and collar aperture 4 is positioned at the scope of angle measuring calibration line 3 in addition.Stationary positioned pin 1 needle point and sliding tray 2 centers of circle be 1.0-3.5mm apart from O ' O, the angulation scope of angle measuring calibration line 3 is 0 °-60 °, wherein 0 ° of graduation mark is positioned on the vertical direction; Angle between 0 ° of graduation mark of stationary positioned pin 1 and angle measuring calibration line 3 can be 0 °-45 °.
Shown in Fig. 2,3, Fig. 2 is that the needle point near-end of stationary positioned pin 1 of the present invention and the center of circle of sliding tray 2 concern sketch map.Because the angle between 0 ° of graduation mark of stationary positioned pin 1 and angle measuring calibration line 3 can the variation from 0 ° to 45 °, when the angle between 0 ° of graduation mark of hypothesis stationary positioned pin 1 shown in Figure 2 and angle measuring calibration line 3 is 30 °, when the working column 6 that inserts collar aperture 4 by 60 ° of directions of angle measuring calibration line 3 when 30 ° of directions move, stationary positioned pin 1 as yet not needle point become big gradually to the vertical dimension of working column 6 centrage extended lines; When working column 6 was positioned 60 °, the needle point of stationary positioned pin 1 was to the vertical dimension minimum of working column centrage extended line.And descending the inboard cortical thickness of pedicle for cervical vertebra arch according to the literature between 1.2mm-2.0mm, the present invention breaks through inboard cortex when having avoided pedicle screw 7 to change pedicle of vertebral arch over to by the distance that limits sliding tray 2 centers of circle and stationary positioned pin 1 needle point.Pedicle screw 7 is inserted the principle of " not outer in peaceful ", the present invention has also guaranteed the distance of pedicle screw 7 with following pedicle for cervical vertebra arch outside cortex simultaneously indirectly, promptly guaranteed pedicle screw 7 do not break through the outside cortical bone, thereby avoided the generation of operation related complication, guaranteed the success rate of time pedicle for cervical vertebra arch screw implantation surgery.
View when Fig. 3 uses for the present invention fixedly is windowed between the vertebra and adjacent vertebra vertebral plate intending during operation, big or smallly inserts locating guider and enters and get final product can hold of the present invention time pedicle for cervical vertebra arch screw, and about 5mm(key cellular type is windowed).Detect medial border and the upper and lower edge of confirming pedicle of vertebral arch with stationary positioned pin 1, and the stationary positioned pin 1 that will descend the pedicle for cervical vertebra arch screw to insert locating guider is fixed in the medial border mid point of pedicle of vertebral arch.By the direction of adjustment stationary positioned pin 1 and the angle of sliding tray 2, determine the direction of the working column 6 of insertion collar aperture 4, attention work sleeve 6 reach inside and outside angle of inclination up and down, the direction of all working sleeve pipe 6 and the angle of sagittal line are 40 °-45 ° between C3-C6, C7 is 30 °-40 °, concrete angle according to art before X-ray film and CT sheet measure and decide.Horizontal general work sleeve 6 should be as far as possible and the last soleplate keeping parallelism of vertebral body, promptly becomes pointed cone tail end caudal ward to tilt about 10 ° with C3, C4, tilts about 10 ° with C6, C7 cephalad, and is vertical with C5 vertebral body trailing flank.By after tightening up screw 5 and fixing work sleeve 6, be rotated into pedicle of vertebral arch with pedicle of vertebral arch open circuit device along working column 6 and change the hole, pedicle of vertebral arch open circuit device is withdrawn from along working column 6 after finishing and changeing the hole, insert the pedicle screw 7 of suitable diameter and length at last, the diameter of pedicle screw 7 and length according to art before X-ray film and CT sheet measurement data select.With pedicle screw 7 fixing after, take out down the pedicle for cervical vertebra arch screw and insert locating guider, carry out the postoperative relevant treatment, finish operation.Pedicle for cervical vertebra arch screw down of the present invention is inserted locating guider is determined pedicle screw 7 by the collar aperture on stationary positioned pin 1 and the sliding tray 24 direction and position, simple in structure, easy to operate, improve the accuracy and the safety of pedicle for cervical vertebra arch screw implantation surgery down in the posterior approach, reduced the generation that pedicle screw is put related complication behind the tack operation; The LOCATION OF PEDICLE SCREW FIXATION of inserting is reliable, the risk that comes off is little, is applicable in vast basic health mechanism to apply.
The part that the present invention does not relate to prior art that maybe can adopt all same as the prior art is realized.
Claims (2)
1. a following pedicle for cervical vertebra arch screw is inserted locating guider, it is characterized in that described locating guider comprises stationary positioned pin (1) and is hinged on sliding tray (2) on stationary positioned pin (1) the pin arm, described sliding tray (2) is circular arc, evenly be carved with angle measuring calibration line (3) on the medial surface of sliding tray (2), the inside of sliding tray (2) is provided with runs through the lateral collar aperture of sliding tray (2) (4), and the centrage of collar aperture (4) points to the center of circle of sliding tray (2); Described stationary positioned pin (1) needle point and sliding tray (2) center of circle be 1.0-3.5mm apart from O ' O.
2. down pedicle for cervical vertebra arch screw according to claim 1 is inserted locating guider, it is characterized in that described sliding tray (2) is provided with to tighten up screw (5), describedly tightens up the two ends that screw (5) is positioned at angle measuring calibration line (3).
3
.Pedicle for cervical vertebra arch screw down according to claim 1 is inserted locating guider, and the angulation scope that it is characterized in that described angle measuring calibration line (3) is 0 °-60 °, and 0 ° of graduation mark of described angle measuring calibration line (3) is positioned on the vertical direction.
4
.Down pedicle for cervical vertebra arch screw according to claim 3 is inserted locating guider, it is characterized in that the angle between 0 ° of graduation mark of described stationary positioned pin (1) and angle measuring calibration line (3) is 0 °-45 °.
5
.Down pedicle for cervical vertebra arch screw according to claim 1 is inserted locating guider, it is characterized in that branch such as described sliding tray (2) inside is provided with collar aperture (4).
6
.Descend the pedicle for cervical vertebra arch screw to insert locating guider according to claim 1 or 5, it is characterized in that described collar aperture (4) is positioned at the scope of angle measuring calibration line (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010572649A CN101999930B (en) | 2010-12-03 | 2010-12-03 | Positioning guider for embedding pedicle screw of lower cervical spine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010572649A CN101999930B (en) | 2010-12-03 | 2010-12-03 | Positioning guider for embedding pedicle screw of lower cervical spine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101999930A CN101999930A (en) | 2011-04-06 |
| CN101999930B true CN101999930B (en) | 2011-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010572649A Expired - Fee Related CN101999930B (en) | 2010-12-03 | 2010-12-03 | Positioning guider for embedding pedicle screw of lower cervical spine |
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| CN (1) | CN101999930B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107518936B (en) * | 2017-08-23 | 2024-04-23 | 上海交通大学医学院附属第九人民医院 | Full backbone pedicle of vertebral arch positioning sleeve |
| CN109223148A (en) * | 2018-10-25 | 2019-01-18 | 南方医科大学南方医院 | A kind of fracture with compressive reduction fixation guider |
| CN113116493B (en) * | 2021-04-16 | 2023-12-26 | 中国人民解放军北部战区总医院 | Anterior cervical pedicle screw trajectory determining device |
| CN114305641A (en) * | 2021-12-27 | 2022-04-12 | 慈溪市人民医院医疗健康集团(慈溪市人民医院) | Pedicle screw advances nail angle measuring subassembly |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6342056B1 (en) * | 2000-02-04 | 2002-01-29 | Jean-Marc Mac-Thiong | Surgical drill guide and method for using the same |
| CN2680212Y (en) * | 2003-09-30 | 2005-02-23 | 江永发 | Screw guiding and positioning device for vertebral arch pedicle |
| CN2857864Y (en) * | 2005-12-19 | 2007-01-17 | 戴维享 | Dynamic coax/condylus three-dimensional angle guide |
| CN201088623Y (en) * | 2007-10-17 | 2008-07-23 | 徐荣明 | Position device for the cervical pedicle for screw placement |
| CN201431505Y (en) * | 2009-05-21 | 2010-03-31 | 曾忠友 | Lumbar vertebral plate zygapophysis screw sighting device |
| CN201624768U (en) * | 2010-03-01 | 2010-11-10 | 徐荣明 | Guider for lower cervical vertebra anterior vertebral pedicle screw implantation |
| CN201870719U (en) * | 2010-12-03 | 2011-06-22 | 南京医科大学附属南京第一医院 | Lower vertebral pedicle screw imbedding and positioning guide device |
-
2010
- 2010-12-03 CN CN201010572649A patent/CN101999930B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN101999930A (en) | 2011-04-06 |
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Granted publication date: 20111214 Termination date: 20131203 |