CN204274630U - Nail guider put by a kind of cone nut nail - Google Patents
Nail guider put by a kind of cone nut nail Download PDFInfo
- Publication number
- CN204274630U CN204274630U CN201420676757.8U CN201420676757U CN204274630U CN 204274630 U CN204274630 U CN 204274630U CN 201420676757 U CN201420676757 U CN 201420676757U CN 204274630 U CN204274630 U CN 204274630U
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- guide
- spinous process
- nail
- fixture
- radial teeth
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Abstract
This utility model relates to medical instruments field, a kind of pedicle nail that can realize accurately guiding is provided to put nail guider, comprise and laterally strut guide, longitudinally strut guide, two horizontal sliding seats, two groups of sleeve assemblies, described horizontal sliding seat is symmetrically set in laterally strutting guide two ends, described sleeve assembly is connected with horizontal sliding seat, described longitudinal direction struts guide one end and is vertically connected at and laterally struts in the middle part of guide, the other end is provided with longitudinal sliding motion seat, described longitudinal sliding motion seat is provided with fixed guide locking assembly, described fixed guide locking assembly comprises guide shaft fixing unit, spinous process upper limb positioning mounting, spinous process fixture, described guide shaft fixing unit one end is fixedly connected with longitudinal sliding motion seat is vertical, the other end and spinous process upper limb positioning mounting are rotationally connected, described spinous process fixture and spinous process upper limb fixture nested encryptions.This utility model can position pedicle nail accurately, easy to operate during operation, also improves safety and the controllability of operation.
Description
Technical field
This utility model relates to medical instruments field, particularly relates to a kind of pedicle nail and puts nail guider.
Background technology
Pedicle screw system plays an important role in the treatments such as spinal trauma reset, malformation correction, and the progress of cervical arc root screw internal fixing system has promoted the development of spinal surgery technology greatly.
The successful key of pedicle screw system internal fixation accurately inserts pedicle screw, inserting pedicle screw must be arranged on a unique correct passage of three dimensions, therefore, after determining the entry point of pedicle screw, enter to follow closely direction and just seem particularly important.Screw to enter to follow closely when direction refers to that screw is inserted sagittal plane angle and horizontal plane angle accurately, sagittal plane angle refers to the projection of pedicle of vertebral arch axis on sagittal plane and the angle of vertebral body coronalplane vertical line, and horizontal plane angle refers to the projection of pedicle of vertebral arch axis on sever crossly vertebrae face and the angle of vertebral body coronalplane vertical line.But, bring into use till now from pedicle screw fixation, though through continuous technological improvement, plant tack operation clinically and still rely on free-hand open circuit, entirely estimate sagittal plane angle into nail and horizontal plane angle with the experience and sensation at that time of implementing the person that puts tack operation.The shortcoming of this way is:
1, the accuracy rate of mid-nail of performing the operation is difficult to determine, repeatability is strong, and each one success rate is different;
Even the accuracy rate that 2 veteran operators screw in screw in different periods, different pedicles of vertebral arch is also difficult to ensure;
3, in operation in order to the accuracy of the position and direction that ensure screw often needs repeatedly X-ray examination, extend the time of operation, add the number of times of patient and medical worker's X-ray examination, not only add the cost for the treatment of, but also injure the health of patient and medical worker;
4, because the direction of guider is difficult to grasp, once error has damaged neural and blood vessel, consequence cannot have been retrieved especially;
5, the limited diameter of pedicle of vertebral arch, pulp cavity is narrow, if just enter into position accurately after repeatedly changing its course, then greatly reduces the intensity of internal fixtion, result in the failure of internal fixtion.
Utility model content
Technical problem to be solved in the utility model is: provide a kind of pedicle of lumbar vertebra to put nail guider, reduces operating difficulty, realizes the accurate implantation of pedicle of lumbar vertebra screw.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: comprise and laterally strut guide, longitudinally strut guide, two horizontal sliding seats, two groups of sleeve assemblies, described horizontal sliding seat is symmetrically set in laterally strutting guide two ends, described sleeve assembly is connected with horizontal sliding seat, described longitudinal direction struts guide one end and is vertically connected at and laterally struts in the middle part of guide, the other end is provided with longitudinal sliding motion seat, described longitudinal sliding motion seat is provided with fixed guide locking assembly, described fixed guide locking assembly comprises guide shaft fixing unit, spinous process upper limb positioning mounting, spinous process fixture, described guide shaft fixing unit one end is fixedly connected with longitudinal sliding motion seat is vertical, the other end and spinous process upper limb positioning mounting are rotationally connected, described spinous process fixture and spinous process upper limb fixture nested encryptions.
Further, described fixed guide locking assembly also comprises the first screw rod, the second nut, nested fixture, described nested fixture is fixedly connected with spinous process upper limb positioning mounting one end is vertical, the corresponding surface that described guide shaft fixing unit and spinous process upper limb positioning mounting are rotationally connected is provided with rounded the first radial teeth of cooperatively interacting and the second radial teeth, described second radial teeth center is provided with the first through hole, described spinous process fixture one end margin is provided with slotted eye, and described slotted eye is connected with nested fixture; Described spinous process fixture is provided with second through hole corresponding with the first through hole, described first screw rod one end is rotationally connected with guide shaft fixing unit through after described first through hole and the second through hole, and the described first screw rod other end extends to outside spinous process fixture and is connected with the first nut screw connection.
Further, described sleeve assembly comprises receiver, movable sleeve, sleeve, the second screw rod, the second nut, and described receiver to be positioned at above horizontal sliding seat and to be fixedly connected with horizontal sliding seat; Described movable sleeve is connected by described second screw rod with receiver, the corresponding surface that described receiver is connected with movable sleeve is respectively equipped with the 3rd rounded radial teeth and the 4th radial teeth that cooperatively interact, described 3rd radial teeth center is provided with third through-hole, described second screw rod one end is connected with the 4th radial teeth center, through extending to after third through-hole, receiver is outer to be connected with the second nut screw connection the other end, and described jacket casing is located in movable sleeve.
Further, described transverse direction struts guide and described longitudinal direction and struts guide upper surface and be provided with tooth bar.
Further, also comprise three groups and strut positioning component, described in strut positioning component respectively correspondence be located on described horizontal sliding seat and longitudinal sliding motion seat.
Further, the described positioning component that struts comprises the pedestal be fixedly connected with receiver, gear is arranged with in described pedestal, teeth on described wheel and rack are meshed, described gear is provided with coaxial with it be connected strut knob, described pedestal is hinged with the check pawl be meshed with teeth by jointed shaft, described jointed shaft is provided with reduction torsion spring, described jointed shaft and gear shaft are to paralleling.
Further, described first radial teeth, the second radial teeth, the 3rd radial teeth and described 4th radial teeth periodontal limit are equipped with angle index line.
Further, described first nut and the second nut are wing nut.
A kind of pedicle nail of the present utility model puts nail guider, strutting guide and described longitudinal direction by described transverse direction, to strut guide vertical, described guide shaft fixing unit by described longitudinal sliding motion seat removable and with laterally strut guide and longitudinally strut guide place plane orthogonal; On described guide shaft fixing unit, be also provided with the spinous process upper limb positioning mounting be rotationally connected with described guide shaft fixing unit simultaneously, described spinous process upper limb positioning mounting is provided with the spinous process fixture with described spinous process upper limb positioning mounting nested encryptions, by horizontal, longitudinal sliding seat, make to determine that putting of pedicle nail follows closely position exactly, what obtain satisfied pedicle nail puts nail track, and then can position pedicle nail accurately, improve the success rate that pedicle nail puts tack operation, shorten operating time, also improve safety and the controllability of operation.
Accompanying drawing explanation
Fig. 1 is the structural representation that a kind of pedicle nail of this utility model puts nail guider;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the decomposition texture schematic diagram of sleeve described in the utility model;
Fig. 4 is the B-B sectional view of Fig. 1;
Fig. 5 is the decomposition texture schematic diagram of fixed guide locking assembly described in the utility model.
Label declaration:
1, laterally guide is strutted; 2, horizontal sliding seat; 3, longitudinally guide is strutted; 4, longitudinal sliding motion seat; 5, fixed guide locking assembly; 50, guide shaft fixing unit; 51, spinous process upper limb positioning mounting; 52, spinous process fixture; 53, the first screw rod; 54, the first nut; 55, nested fixture; 56, the first radial teeth; 57, the second radial teeth; 58, the first through hole; 59, slotted eye; 501, the second through hole; 6, sleeve assembly; 60, receiver; 61, movable sleeve; 62, sleeve; 63, the second screw rod; 64, the second nut; 65, the 3rd radial teeth; 66, the 4th radial teeth; 67, third through-hole; 7, positioning component is strutted; 70, pedestal; 71, gear; 72, knob is strutted; 73, jointed shaft; 74, check pawl; 75, reduction torsion spring.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearly understand, below by specific embodiment and relevant drawings, this utility model will be described in further detail.In the drawings, gear, ratchet mechanism are idealized model, should not be considered to strictly show its parameter, physical dimension.At this, reference diagram is the schematic diagram of idealized embodiments of the present utility model, and the embodiment shown in this utility model should not be considered to the given shape being only limitted to the region shown in figure, but comprises obtained shape, such as manufactures the deviation caused.Part accessory in the present embodiment, the expression in figure is schematic, but this should not be considered to limit the scope of the invention.
As shown in Fig. 1 to 5, a kind of pedicle nail of this utility model embodiment puts nail guider, comprise and laterally strut guide 1, longitudinally strut guide 3, two horizontal sliding seats 2, two groups of sleeve assemblies 6, described horizontal sliding seat 2 is symmetrically set in laterally strutting guide 1 two ends, described sleeve assembly 6 is connected with horizontal sliding seat 2, described longitudinal direction struts guide 3 one end and is vertically connected at and laterally struts in the middle part of guide 1, the other end is provided with longitudinal sliding motion seat 4, described longitudinal sliding motion seat 4 is provided with fixed guide locking assembly 5, described fixed guide locking assembly 5 comprises guide shaft fixing unit 50, spinous process upper limb positioning mounting 51, spinous process fixture 52, described guide shaft fixing unit 50 one end is fixedly connected with longitudinal sliding motion seat 4 is vertical, the other end and spinous process upper limb positioning mounting 51 are rotationally connected, described spinous process fixture 52 and spinous process upper limb fixture nested encryptions.
Seen from the above description, a kind of pedicle nail of the present utility model puts nail guider, strutting guide 1 and described longitudinal direction by described transverse direction, to strut guide 3 vertical, described guide shaft fixing unit 50 by described longitudinal sliding motion seat 4 removable and with laterally strut guide 1 and longitudinally strut guide 3 place plane orthogonal; On described guide shaft fixing unit 50, be also provided with the spinous process upper limb positioning mounting 51 be rotationally connected with described guide shaft fixing unit 50 simultaneously, described spinous process upper limb positioning mounting 51 is provided with the spinous process fixture 52 with described spinous process upper limb positioning mounting 51 nested encryptions, by horizontal, longitudinal sliding seat, make to determine that putting of pedicle nail follows closely position exactly, what obtain satisfied pedicle nail puts nail track.The beneficial effects of the utility model are: can position pedicle nail accurately, improve the success rate that pedicle nail puts tack operation, shorten operating time, reduce the number of times of patient and medical worker's X-ray examination in amount of bleeding and art, reduce the damage to patient, also improve safety and the controllability of operation.
Further, described fixed guide locking assembly 5 also comprises the first screw rod 53, second nut 64, nested fixture 55, described nested fixture 55 is fixedly connected with spinous process upper limb positioning mounting 51 one end is vertical, the corresponding surface that described guide shaft fixing unit 50 and spinous process upper limb positioning mounting 51 are rotationally connected is provided with rounded the first radial teeth 56 and the second radial teeth 57 cooperatively interacted, described second radial teeth 57 center is provided with the first through hole 58, described spinous process fixture 52 1 end margin is provided with slotted eye 59, described slotted eye 59 is connected with nested fixture 55, described spinous process fixture 52 is provided with second through hole 501 corresponding with the first through hole 58, described first screw rod 53 one end is through described first through hole 58 and the second through hole 501 is rear and guide shaft fixing unit 50 is rotationally connected, and described first screw rod 53 other end extends to outside spinous process fixture 52 and is connected with the first nut 54.
Further, described sleeve assembly 6 comprises receiver 60, movable sleeve 61, sleeve 62, second screw rod 63, second nut 64, and described receiver 60 to be positioned at above horizontal sliding seat 2 and to be fixedly connected with horizontal sliding seat 2; Described movable sleeve 61 is connected by described second screw rod 63 with receiver 60, the corresponding surface that described receiver 60 is connected with movable sleeve 61 is respectively equipped with the 3rd rounded radial teeth 65 and the 4th radial teeth 66 that cooperatively interact, described 3rd radial teeth 65 center is provided with third through-hole 67, described second screw rod 63 one end is connected with the 4th radial teeth 66 center, the other end extends to after passing third through-hole 67 and is connected receiver 60 outer cooperation with the second nut 64, and described sleeve 62 is sheathed in movable sleeve 61.
Further, described transverse direction struts guide 1 and described longitudinal direction and struts guide 3 upper surface and be provided with tooth bar.
Further, also comprise three groups and strut positioning component 7, described in strut positioning component 7 respectively correspondence be located on described horizontal sliding seat 2 and longitudinal sliding motion seat 4.
Further, the described positioning component 7 that struts comprises the pedestal 70 be fixedly connected with receiver 60, gear 71 is arranged with in described pedestal 70, described gear 71 is meshed with the teeth on tooth bar, described gear 71 is provided with coaxial with it be connected strut knob 72, described pedestal 70 is hinged with the check pawl 74 be meshed with teeth by jointed shaft 73, described jointed shaft 73 is provided with reduction torsion spring 75, described jointed shaft 73 axially parallels with gear 71.
Further, the radial teeth 57 of described first radial teeth 56, second, the 3rd radial teeth 65 and described 4th radial teeth 66 periphery are equipped with angle index line.
Further, described first nut 54 and the second nut 64 are wing nut.
The operation principle of the present embodiment:
Patient gets ventricumbent position, hits exactly stringer otch, successively cut after waist, peel off paraspinal muscle, appear spinous process, bilateral lamina, lower articular dash forward.Along spinous process near-end upper limb cut-away portions interspinal ligaments, guide shaft fixing unit 50 is buckled in art vertebra spinous process near-end upper limb place, spinous process upper limb positioning mounting 51 is close on the left of spinous process, a duck eye is exposed in spinous process through the first through hole 58, first screw rod 53 passes through the first through hole 58 and spinous process duck eye, slotted eye 59 is inserted in nested fixture 55, second through hole 501 is inserted in the first screw rod 53, corresponding angle is adjusted at sagittal plane angle according to preoperative measurement, tighten the first nut 54, according to the inclined angle of the horizontal plane angle adjustment movable sleeve 61 of preoperative measurement, tighten the second nut 64, be inserted in sleeve 62, pedicle nail open circuit device is inserted through sleeve 62, the knob 72 that struts adjusted on horizontal sliding seat 2 and longitudinal sliding motion seat 4 makes pedicle nail open circuit device aim at entry point, then hand-held pedicle nail open circuit Qi Kuo road, after tapping, be screwed into pedicle nail, complete whole operating process.
In sum, the pedicle nail of this enforcement puts nail guider, structure is ingenious, easy and simple to handle, the success rate of Pedicle Screw can be improved, reduce the generation of complication, shorten operating time, reduce the number of times of patient and medical worker's X-ray examination in amount of bleeding and art, thus Economy type medicine cost, alleviate the actual bodily harm of patient and medical worker, be convenient to penetration and promotion.
Above-listed preferred embodiment; the purpose of this utility model, technical scheme and advantage are further described; be understood that; the foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (8)
1. a pedicle nail puts nail guider, comprise and laterally strut guide, longitudinally strut guide, two horizontal sliding seats, two groups of sleeve assemblies, it is characterized in that: described horizontal sliding seat is symmetrically set in laterally strutting guide two ends, described sleeve assembly is connected with horizontal sliding seat, described longitudinal direction struts guide one end and is vertically connected at and laterally struts in the middle part of guide, the other end is provided with longitudinal sliding motion seat, described longitudinal sliding motion seat is provided with fixed guide locking assembly, described fixed guide locking assembly comprises guide shaft fixing unit, spinous process upper limb positioning mounting, spinous process fixture, described guide shaft fixing unit one end is fixedly connected with longitudinal sliding motion seat is vertical, the other end and spinous process upper limb positioning mounting are rotationally connected, described spinous process fixture and spinous process upper limb fixture nested encryptions.
2. pedicle nail according to claim 1 puts nail guider, it is characterized in that: described fixed guide locking assembly also comprises the first screw rod, second nut, nested fixture, described nested fixture is fixedly connected with spinous process upper limb positioning mounting one end is vertical, the corresponding surface that described guide shaft fixing unit and spinous process upper limb positioning mounting are rotationally connected is provided with rounded the first radial teeth of cooperatively interacting and the second radial teeth, described second radial teeth center is provided with the first through hole, described spinous process fixture one end margin is provided with slotted eye, described slotted eye is connected with nested fixture, described spinous process fixture is provided with second through hole corresponding with the first through hole, described first screw rod one end is rotationally connected with guide shaft fixing unit through after described first through hole and the second through hole, and the described first screw rod other end extends to outside spinous process fixture and is connected with the first nut screw connection.
3. guiding means for diculus arcus vertebrae nail according to claim 1, is characterized in that: described sleeve assembly comprises receiver, movable sleeve, sleeve, the second screw rod, the second nut, and described receiver to be positioned at above horizontal sliding seat and to be fixedly connected with horizontal sliding seat; Described movable sleeve is connected by described second screw rod with receiver, the corresponding surface that described receiver is connected with movable sleeve is respectively equipped with the 3rd rounded radial teeth and the 4th radial teeth that cooperatively interact, described 3rd radial teeth center is provided with third through-hole, described second screw rod one end is connected with the 4th radial teeth center, through extending to after third through-hole, receiver is outer to be connected with the second nut screw connection the other end, and described jacket casing is located in movable sleeve.
4. put nail guider according to the pedicle nail described in claim 1, it is characterized in that: described transverse direction struts guide and described longitudinal direction and struts guide upper surface and be provided with tooth bar.
5. put nail guider according to the pedicle nail described in claim 1, it is characterized in that: also comprise three groups and strut positioning component, described in strut positioning component respectively correspondence be located on described horizontal sliding seat and longitudinal sliding motion seat.
6. pedicle nail as claimed in claim 5 puts nail guider, it is characterized in that: described in strut positioning component and comprise the pedestal be fixedly connected with receiver, gear is arranged with in described pedestal, teeth on described wheel and rack are meshed, described gear is provided with coaxial with it be connected strut knob, described pedestal is hinged with the check pawl be meshed with teeth by jointed shaft, described jointed shaft is provided with reduction torsion spring, described jointed shaft and gear shaft are to paralleling.
7. pedicle nail puts nail guider as claimed in claim 2 or claim 3, it is characterized in that: described first radial teeth, the second radial teeth, the 3rd radial teeth and described 4th radial teeth periodontal limit are equipped with angle index line.
8. pedicle nail puts nail guider as claimed in claim 2 or claim 3, it is characterized in that: described first nut and the second nut are wing nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420676757.8U CN204274630U (en) | 2014-11-13 | 2014-11-13 | Nail guider put by a kind of cone nut nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420676757.8U CN204274630U (en) | 2014-11-13 | 2014-11-13 | Nail guider put by a kind of cone nut nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204274630U true CN204274630U (en) | 2015-04-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420676757.8U Expired - Fee Related CN204274630U (en) | 2014-11-13 | 2014-11-13 | Nail guider put by a kind of cone nut nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204274630U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104799934A (en) * | 2015-05-18 | 2015-07-29 | 阮渊 | Vertebral pedicle screw-placing guider |
| CN106037909A (en) * | 2016-05-19 | 2016-10-26 | 汤向阳 | Thoracolumbar spine vertebral pedicle screw entrance point and angle positioning device |
| CN106333741A (en) * | 2016-09-09 | 2017-01-18 | 中国人民解放军第二军医大学 | Atlas vertebral pedicle screw guider |
| CN107411811A (en) * | 2017-07-12 | 2017-12-01 | 中南大学湘雅医院 | A kind of sacral puts nail multifunctional guide device |
| CN110060532A (en) * | 2019-04-22 | 2019-07-26 | 赵华国 | Percutaneous vertbroplasty pedicle of vertebral arch locating guide device and its operating method |
| WO2020155562A1 (en) * | 2019-01-31 | 2020-08-06 | 上海长海医院 | Positioning guiding device, and positioning guiding system for vertebral pedicle fixation |
-
2014
- 2014-11-13 CN CN201420676757.8U patent/CN204274630U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104799934A (en) * | 2015-05-18 | 2015-07-29 | 阮渊 | Vertebral pedicle screw-placing guider |
| CN106037909A (en) * | 2016-05-19 | 2016-10-26 | 汤向阳 | Thoracolumbar spine vertebral pedicle screw entrance point and angle positioning device |
| CN106333741A (en) * | 2016-09-09 | 2017-01-18 | 中国人民解放军第二军医大学 | Atlas vertebral pedicle screw guider |
| CN107411811A (en) * | 2017-07-12 | 2017-12-01 | 中南大学湘雅医院 | A kind of sacral puts nail multifunctional guide device |
| WO2020155562A1 (en) * | 2019-01-31 | 2020-08-06 | 上海长海医院 | Positioning guiding device, and positioning guiding system for vertebral pedicle fixation |
| CN110060532A (en) * | 2019-04-22 | 2019-07-26 | 赵华国 | Percutaneous vertbroplasty pedicle of vertebral arch locating guide device and its operating method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20151113 |
|
| EXPY | Termination of patent right or utility model |