The service pipe of intervertebral foramina and prosthetic deviceTechnical field
The present invention relates to technical field of medical instruments, particularly to service pipe and the prosthetic device of a kind of intervertebral foramina.
Background technology
Lumbar intervertebral disc, between two vertebral bodys, is a structure with hydrodynamic characteristic, by vertebral pulp, fibrous ring andCartilaginous lamina three part is constituted, and wherein vertebral pulp is middle body, and fibrous ring is peripheral part, holds vertebral pulp, and cartilaginous lamina is upper and lower partPoint, directly it being connected with vertebral bone tissue, the thickness of whole lumbar intervertebral disc is 8mm～10mm.
Prolapse of lumbar intervertebral disc is one of relatively conventional illness, is primarily due to lumbar intervertebral disc each several part, such as, marrowCore, fibrous ring and cartilaginous lamina, especially vertebral pulp, after having degenerative change in various degree, under the effect of external force factor, intervertebralThe Anular disruption of dish, nucleus pulposus highlights from rupturing part or emerges in rear or intraspinal tube, causing adjacent ridge nerve root to meet withIrriate or compressing, thus produce flank pain, a series of clinical symptoms such as side lower limb or double numbness of lower limbs, pain.Lumbar vertebraDisc herniation is the highest with waist 4～5, waist 5-sacrum 1 sickness rate, accounts for 95%.At present, under spinal endoscopes, resection of nucleus pulposus is normalOne of the operation for the treatment of prolapse of lumbar intervertebral disc, this technology is that coaxial endoscope completes, by work under stiff rod shape pipelinePipeline is inserted intervertebral foramina region and completes one of important step that intervertebral foramina plasty is to ensure that Microendoscopic works.
Current intervertebral foramina plasty is many to be monitored by x-ray under the guiding leading rod, relies on the instrument such as trepan and bone drill completeBecome, the most again insert service pipe.The standard step of this operation is about 20 steps, utilizes 0.8mm seal wire to guide, and needs notReplace disconnectedly different-diameter lead rod and trepan or bone drill and it needs to overall process completes under radioscopy, complex steps andThe phenomenons such as position skew easily occur, doctor and patient radiation expose more simultaneously.
Summary of the invention
It is an object of the invention to provide service pipe and the prosthetic device of a kind of intervertebral foramina, to solve prior art walksThe problem that the most loaded down with trivial details and position easily offsets.
The service pipe of the intervertebral foramina that the present invention provides, including: for doing the first pipeline of abrasion work and for draw pointThe second pipe passed；
The depressed part of oriented described first pipe interior depression, described second pipe are set on the sidewall of described first pipelineIt is positioned at inside described depressed part.
Further, the direction of the depression of described depressed part is towards the center of circle of described first pipeline.
Further, described first pipeline one end is provided with Handheld Division, away from described Handheld Division on described first pipelineOne end is passivity front end.
Further, the end surface shape ovalize of described passivity front end, facilitate inserting of the first pipeline.
Further, described first pipeline and described second pipe are circular pipe.
Further, the edge of described first pipeline and described second pipe is smooth limit, it is to avoid the first pipeline andSecond pipe hurts the neuromechanism within intervertebral foramina.
Further, the material of described first pipeline and described second pipe is steel or titanium alloy.
Further, the external diameter of described first pipeline is 3mm～4mm, and the external diameter of described second pipe is 0.8mm～1mm.
The prosthetic device that the present invention provides, including: service pipe, endoscope and draw point；
Described endoscope is positioned on the first inner-walls of duct on described service pipe, is used for monitoring that abrasion tool works；
Described draw point runs through the second pipe on described service pipe.
Further, the nose shape of described draw point is tongue shape face, it is simple to puncture of steel needles is to vertebral body reinforcement.
The invention have the benefit that
The service pipe of intervertebral foramina that the present invention provides, when operation first by draw point at x-ray guided Percutaneous to vertebraBody reinforcement, directly insert service pipe after expansion step by step, and draw point head alignment superior articular process's veutro, the first pipeline head is by godElapse through structure appropriateness, because draw point is fixed on sclerotin highly stable, therefore carry out the excision of sclerotin near neuromechanism timeTime fixes the first pipeline, the problem not havinging skew, reduces operational risk；Then by the first pipeline to superior articular process's sclerotinWearing and tearing, complete the shaping of intervertebral foramina, intervertebral foramina can extract fixing draw point after shaping, now can free active operation pipeRoad completes operation, has advantage easy and simple to handle.
The prosthetic device that the present invention the provides setting by service pipe, so it has all excellent of above-mentioned service pipePoint, it is possible to reduce operational risk, and easy and simple to handle；Additionally, the service pipe of intervertebral foramina can also be again under endoscope monitoringAdjust the position of draw point to reach repeatedly the purpose of intervertebral foramina shaping to treat lumbar spinal stenosis；This design is simple and practical,Carry out the when of sclerotin excision near neuromechanism, service pipe being fixed, reduce operational risk, it is possible to peeped by interiorMirror repeatedly adjusts the position of pipeline and again shapes under monitoring, work efficiency is higher and greatly reduces the exposure of lonizing radiation, joinsWhen closing half saw use, more safe efficient.
Accompanying drawing explanation
In order to be illustrated more clearly that the specific embodiment of the invention or technical scheme of the prior art, below will be to specificallyIn embodiment and description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that, in describing belowAccompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not paying creative workPut, it is also possible to obtain other accompanying drawing according to these accompanying drawings, and the wave in figure represents sea level.
The structural representation of the service pipe of the intervertebral foramina that Fig. 1 embodiment of the present invention one provides；
The front view of the first pipeline of Fig. 2 service pipe based on intervertebral foramina described in Fig. 1；
The rearview of the first pipeline of Fig. 3 service pipe based on intervertebral foramina described in Fig. 1；
The structural representation of the prosthetic device that Fig. 4 embodiment of the present invention two provides；
Fig. 5 sectional view based on prosthetic device described in Fig. 4；
In figure:
1-the first pipeline；2-second pipe；
3-draw point；4-endoscope；
11-depressed part；12-Handheld Division.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with the accompanying drawing technology to the present inventionScheme carries out clear, complete description.Obviously, described embodiment is only a part of embodiment of the present invention rather than completeThe embodiment in portion.Based on the embodiment in the present invention, those of ordinary skill in the art are not under making creative work premiseThe every other embodiment obtained, broadly falls into the scope of protection of the invention.
In describing the invention, it should be noted that term " " center ", " on ", D score, "left", "right", " vertically ",Orientation or the position relationship of the instruction such as " level ", " interior ", " outward " they are based on orientation shown in the drawings or position relationship, merely toBe easy to describe the present invention and simplifying describe rather than instruction or the hint device of indication or element must have specific orientation,With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.Additionally, term " first ", " second "," the 3rd " is only used for describing purpose, and it is not intended that indicate or hint relative importance.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " is installed ", " phaseEven ", " connection " should be interpreted broadly, for example, it may be fixing connection, it is also possible to be to removably connect, or be integrally connected；CanTo be mechanical connection, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke YishiThe connection of two element internals.For the ordinary skill in the art, can understand that above-mentioned term is at this with concrete conditionConcrete meaning in invention.
Below by specific embodiment and combine accompanying drawing the present invention is described in further detail.
Embodiment one
The structural representation of the service pipe of the intervertebral foramina that Fig. 1 embodiment of the present invention one provides；Fig. 2 is based on vertebra described in Fig. 1Between the front view of the first pipeline of service pipe in hole；After first pipeline of Fig. 3 service pipe based on intervertebral foramina described in Fig. 1View.
As Figure 1-3, the present embodiment provides the service pipe of a kind of intervertebral foramina, including: for doing the of abrasion workOne pipeline 1 and the second pipe 2 passed for draw point 3；
Arranging the depressed part 11 of oriented first pipeline 1 inner recess on the sidewall of the first pipeline 1, second pipe 2 is positioned at recessedFall into portion 11 internal.
The service pipe of this intervertebral foramina, when operation first by draw point 3 at x-ray guided Percutaneous to vertebral body reinforcement, byDirectly being inserted by service pipe after level expansion, draw point 3 head alignment superior articular process's veutro, the first pipeline 1 head is by neuromechanismAppropriateness passage, because draw point 3 is fixed on sclerotin highly stable, therefore fixes carrying out sclerotin excision near neuromechanism whenFirst pipeline 1, the problem not havinging skew, reduces operational risk；Then by the first pipeline 1, superior articular process's sclerotin is carried outAbrasion, completes the shaping of intervertebral foramina, and intervertebral foramina can extract fixing draw point 3 after shaping, now can free active operation pipelineComplete operation, there is advantage easy and simple to handle.
It should be noted that second pipe 2 is fixed on the inside of depressed part 11 on the first pipeline 1, along with the first pipeline 1 oneRise and be poured into inside intervertebral foramina.
Concrete, the direction of the depression of depressed part 11 is towards the center of circle of the first pipeline 1, it is possible to increase when service pipe is fixedFastness.
In the present embodiment, first pipeline 1 one end is provided with Handheld Division 12, away from one end of Handheld Division 12 on the first pipeline 1For passivity front end.
Concrete, the end surface shape ovalize of passivity front end, facilitate inserting of the first pipeline 1.
It should be noted that owing to passivity front end is smoother, service pipe, entering intervertebral foramina when, will not damage vertebraBetween neuromechanism within hole, facilitate the importing of service pipe.
Concrete, the first pipeline 1 and second pipe 2 are circular pipe, facilitate service pipe to be inserted into inside intervertebral foramina.
It should be noted that the edge of the first pipeline 1 and second pipe 2 is smooth limit, it is to avoid the first pipeline 1 andTwo pipelines 2 hurt the neuromechanism within intervertebral foramina.
Concrete, the material of the first pipeline 1 and second pipe 2 is steel, has thermostability, corrosion proof advantage；
The material of the first pipeline 1 and second pipe 2 can also be titanium alloy, has thermostability, corrosion resistance and intensity highAdvantage；
It should be noted that the most more titanium alloy material that uses, and titanium alloy is also widely used in every field.
Concrete, the external diameter of the first pipeline 1 is 3mm～4mm, and the external diameter of second pipe 2 is 0.8mm～1mm.
It should be noted that the external diameter of the first pipeline 1 and second pipe 2 determines according to the size of impaired intervertebral foramina.
Embodiment two
The structural representation of the prosthetic device that Fig. 4 embodiment of the present invention two provides；Fig. 5 section view based on Fig. 4 prosthetic deviceFigure.
As illustrated in figures 4-5, the prosthetic device that the present embodiment provides, including: service pipe, endoscope 4 and draw point 3；
On the first pipeline 1 inwall that endoscope 4 is positioned on service pipe, it is used for monitoring that abrasion tool works；
Draw point 3 runs through the second pipe 2 on service pipe.
The setting by service pipe of this prosthetic device, so it has all advantages of above-mentioned service pipe, it is possible to fallLow operational risk, and easy and simple to handle；Additionally, the service pipe of intervertebral foramina can also adjust draw point 3 under endoscope 4 monitors againPosition with reach repeatedly intervertebral foramina shape purpose to treat lumbar spinal stenosis；This design is simple and practical, is carrying out nerveThe when of sclerotin excision, service pipe is fixed near structure, reduces operational risk, it is possible under being monitored by endoscope 4Repeatedly adjusting the position of pipeline and again shape, work efficiency is higher and greatly reduces the exposure of lonizing radiation, coordinates half profile of toothWhen saw uses, more safe efficient.
Concrete, the nose shape of draw point 3 is tongue shape face, it is simple to draw point 3 punctures to vertebral body reinforcement.
It should be noted that tongue shape face is similar to the shape of needle, conveniently inserts draw point 3 and be fixed on sclerotin；AlsoIt should be noted that the nose shape of draw point 3 is not limited only to above-mentioned tongue shape face one, as long as the end face of draw point 3 is set to convenientlyInsert on sclerotin, illustrate the most one by one at this.
Last it is noted that various embodiments above is only in order to illustrate technical scheme, it is not intended to limit；To the greatest extentThe present invention has been described in detail by pipe with reference to foregoing embodiments, it will be understood by those within the art that: it depends onSo the technical scheme described in foregoing embodiments can be modified, or the most some or all of technical characteristic is enteredRow equivalent；And these amendments or replacement, do not make the essence of appropriate technical solution depart from various embodiments of the present invention technologyThe scope of scheme.