CN205586120U

CN205586120U - A interior plant, intervertebral bone grafting integration ware and artifical intervertebral disc for vertebra decompression

Info

Publication number: CN205586120U
Application number: CN201620147785.XU
Authority: CN
Inventors: 邹德威
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-02-26
Filing date: 2016-02-26
Publication date: 2016-09-21
Anticipated expiration: 2026-02-26

Abstract

The utility model provides an interior plant, intervertebral bone grafting integration ware and artifical intervertebral disc for vertebra decompression, a mirror image that lower part that interior plant (10) that is used for vertebra decompression are planted the body (1) and are planted the body (6) down on including plants the body (1) on, is equipped with and is used for inserting vertebra clearance portion of inserting (2) on, and plant the body (6) down and be planting personally experience sth. Part of the body (1). insert the intervertebral clearance when planting the component parts of an entirety from top to bottom and with double track way about forming behind the fix with screw. The subassembly that struts of body separation still being planted including can make about to interior plant, and adjustable axial struts, compresses, realizes accurate adjusting play, and substituted centrum struts the ware, expands out the narrow clearance of pathological change, and the massive planting is gone into, the decompression, fuse ware (or artifical intervertebral disc) and be one step along accurate the sending into of track, switches political loyalty the section with the rachiopathy and forms a three -dimensional stable mechanics module, thoroughly eliminates disease diseases such as fusing ware (or artifical intervertebral disc) shifts, sinks, dislocation.

Description

Implants, Intervertebral disc fusion device and artificial intervertebral disk for spinal decompression

Technical field

This utility model relates to a kind of medical apparatus and instruments, a kind of implants for spinal decompression, or one Intervertebral disc fusion device, especially a kind of artificial intervertebral disk.

Background technology

The decompression of anterior cervical vertebrae intervertebral space, bone-graft fusion are the classical operations going through over half a century, are also to solve cervical vertebra to move back Row becomes, the unique effective ways of spinal compression cervical spondylotic myelopathy.Operation it is crucial that spinal cord is reduced pressure thoroughly.Right Leave defect after the disc tissue of the intervertebral space removing regression left over after decompression, need bone-graft fusion reconstruction of stability.Except passing The autologous ilium three dough cover matter bone piece of system is filled outside bone grafting, in recent years, and various new technique sequential use.After bone grafting Bone piece come off, shift, the complication such as sinking and ilium for complication such as district's nerve injury, pain, infection, except replacing Outside for bone-grafting material, widely used major technique has: Intervertebral disc fusion device adds anterior plate again to be fixed, and forms mesh Front representational major technique, is even referred to as " goldstandard " treating degeneration.

Prior art there is the problem that anterior cervical operation it is crucial that from intervertebral space spinal cord carried out the most effective Decompression, but in the process of cervical spine degeneration, the most Serious Stenosis of interbody space, general operating theater instruments, as curet, Nucleus pulposus clamps etc., are all difficult to enter, and sight line is seriously blocked especially.Therefore, the most effective decompression to be reached, first Vertebral body to be borrowed nail and external vertebrae strutting device, axially strut intervertebral space narrow for regression, expands intervertebral space, makes art The sight line of person can see clearly be convex to intraspinal cause pressure thing, and by apparatus send into, carefully by causes press thing divide from spinal cord surface From and take out.But this step implement after, vertebral body nail often cut in vertebral cancellous bone, cause cancellous bone fracture, Iatrogenic osteoporosis；After having reduced pressure, the Intervertebral disc fusion device of implantation, it is commonly hardness at present much larger than spongiosa Metal and poly-fan's ethyl ketone material of bone are made, and it is relatively big generally to there is fusion device height step span, therefore, dissects suitable Joining property is poor: highly not enough, then easily loosen dislocation；The most excessive, the most easily sink, clamp-on on or below vertebral body, Make intervertebral space stenosis again narrow.For preventing these problems, generally after implanting Intervertebral disc fusion device, Zai Jiaqian road steel Plate is fixed, but has carried out once destroying to spongy bone because strutting use vertebral body nail in art, even " cuts ".And it is current All implants that the approval of anterior approach clinic uses, itself does not the most possess the ability the most axially strutted, such as intervertebral fusion Device and steel plate, and once implant, block sight line the most completely, and any decompression can not have been carried out again, therefore when decompression completes After, because of the vertebral body nail destruction to spongy bone, then implant plate, therefore usually make steel plate screw degree of stability be substantially reduced, and There is the potential danger that steel plate loosens.In recent years, do not merge after decompression, and use the non-fusion technology of reconstruction (to adopt With the non-fused implants Using prosthesis of cervical artificial disc), rebuild motor function because its objective is to preserve, therefore can not Add Interal fixation again.Degeneration, mostly occurs at middle-aged and elderly people, is often associated with osteoporosis in various degree, Therefore the problems referred to above often result in the severe complications such as the dislocation of bone grafting fusion cage, loosening, sinking, the most no longer add steel plate Fixing cervical artificial disc, loosens, sinks, deviate from and drop out the most completely, and generation severe complication makes operation complete Full failure, becomes the significant problem of puzzlement doctor and patient, does not obtains satisfied solution the most yet.

Utility model content

In order to solve existing implants system awkward problem in spinal decompression is performed the operation, this utility model provides A kind of implants for spinal decompression, Intervertebral disc fusion device and artificial intervertebral disk, this is used for the interplantation of spinal decompression Thing first, pass through predetermined trajectory, it can be ensured that precisely adaptive, convenient implantation and safety.The second, adjustable axle is to support Opening, compress, it is achieved precisely adjust gap, union reduces pressure and is implanted as a step.3rd, implants and upper and lower cone shape Becoming three-dimensional overall mechanics module, screw placement vertebral cancellous bone, track embeds soleplate, track and fusion device occlusion and realizes Fix between interface.

This utility model solves its technical problem and be the technical scheme is that a kind of implants for spinal decompression, Including upper implant and lower implant, the bottom of upper implant is provided with the upper insertion section for inserting vertebra gap, lower implant upper Portion is provided with the lower insertion section for inserting vertebra gap, upper insertion section and lower insertion section can be inserted simultaneously into vertebra gap, The described implants for spinal decompression also includes making upper implant to strut assembly with lower implant separates.

In the form of sheets, upper insertion site is in the lower end of upper implant, and upper insertion section is vertical with upper implant, upper insertion section for upper implant For strip or lamellar.

The left and right sides of upper implant lower end is equipped with insertion section, upper insertion site in the lower end of upper implant, upper insertion section Vertical with upper implant, upper insertion section is column, and the lower end of upper insertion section is slide rail, and two upper insertion sections are parallel to each other.

The section configuration of upper insertion section is top isosceles triangle upward or tip water-drop-shaped upward or T Shape or top be isosceles triangle bottom upward, top be top upward trapezoidal.

Both sides in the middle part of upper insertion section are equipped with bar shaped fin, and fin is arranged along the length direction of upper insertion section, two wings In sheet is generally aligned in the same plane.

This struts assembly and includes being positioned at the upper adjustment barrel of the implant left and right sides, is positioned at the lower regulation of the lower implant left and right sides Cylinder and two screw rods, the both sides of the screw rod in left side are respectively with the lower adjustment barrel screw thread in the upper adjustment barrel in left side and left side even Connecing, threaded with the upper adjustment barrel on right side and the lower adjustment barrel on right side respectively in the both sides of the screw rod on right side, screw rod top Thread rotary orientation and the thread rotary orientation of screw rod bottom contrary, rotate two screw rods and implant can be made to separate with lower implant.

This struts assembly and includes being positioned at the upper rack of the implant left and right sides and be positioned at the lower tooth bar of the lower implant left and right sides, The broached-tooth design of upper rack in left side is engaged mutually with the broached-tooth design of the lower tooth bar in left side, the sawtooth knot of the upper rack on right side Structure is engaged mutually with the broached-tooth design of the lower tooth bar on right side, and set up defences only upper rack and lower tooth bar of upper rack and lower tooth bar overcoat divides From sleeve, this struts assembly and is only capable of and makes implant and the lower unidirectional separation of implant.

In upper implant and lower implant mirror image each other, upper implant and lower implant are generally aligned in the same plane.

A kind of Intervertebral disc fusion device, the upper surface of this Intervertebral disc fusion device is provided with above-mentioned for spinal decompression The upper hopper chute that the upper insertion section of implants matches, the lower surface of this Intervertebral disc fusion device is provided with above-mentioned for ridge The gliding groove that the lower insertion section of the implants of vertebra decompression matches.

A kind of artificial intervertebral disk, this artificial intervertebral disk contains female members setting up and down and male member, and the upper surface of this female members sets Having the upper hopper chute that the upper insertion section with the above-mentioned implants for spinal decompression matches, the lower surface of this male member is provided with The gliding groove matched with the lower insertion section of the above-mentioned implants for spinal decompression.

The beneficial effects of the utility model are:

The first, predetermined trajectory is passed through, it can be ensured that precisely adaptive, convenient implantation and safety.

The second, adjustable axle is to strutting, compressing, it is achieved precisely adjust gap, and union reduces pressure and is implanted as a step.

3rd, implants and upper and lower vertebral body form three-dimensional overall mechanics module, and screw placement vertebral cancellous bone, track is embedding Enter soleplate, track and fusion device occlusion and realize between interface fixing.

Accompanying drawing explanation

Below in conjunction with the accompanying drawings this utility model is described in further detail.

Fig. 1 is the schematic perspective view of implants in embodiment 1 for spinal decompression.

Fig. 2 is the perspective exploded view of implants in embodiment 1 for spinal decompression.

Fig. 3 is the section structure schematic diagram of insertion section on the first.

Fig. 4 is the section structure schematic diagram of insertion section on the second.

Fig. 5 is the section structure schematic diagram of insertion section on the third.

Fig. 6 is the structural representation strutting assembly in embodiment 2.

Fig. 7 is the schematic perspective view of Intervertebral disc fusion device.

Fig. 8 is the schematic perspective view of artificial intervertebral disk.

Fig. 9 is the schematic perspective view that upper insertion section and position, lower insertion section are staggered.

Wherein 10. implants, 1. goes up implant, 2. goes up insertion section, 3. fin, 4. goes up adjustment barrel, 5. logical Hole, 6. descends implant, 7. descends insertion section, 8. nut, 9. descends adjustment barrel, 11. screw rods, 12. upper racks, 13. times tooth bars, 14. sleeves；

20. Intervertebral disc fusion devices, 21. upper hopper chutes, 22. gliding grooves；

30. artificial intervertebral disks, 31. female members, 32. male members, 33. upper hopper chutes, 34. gliding grooves.

Detailed description of the invention

It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment can phases Combination mutually.Describe this utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.

Embodiment 1

A kind of implants for spinal decompression, the described implants 10 for spinal decompression include upper implant 1 and under Implant 6, the bottom of upper implant 1 is provided with the upper insertion section 2 for inserting vertebra gap, and the top of lower implant 6 is provided with For inserting the lower insertion section 7 in vertebra gap, upper insertion section 2 and lower insertion section 7 can be inserted simultaneously into vertebra gap, The described implants for spinal decompression also includes making what upper implant 1 and lower implant 6 separated to strut assembly, such as figure Shown in 1 and Fig. 2.

Upper insertion section 2 and lower insertion section 7 can be inserted simultaneously into the gap between two vertebras, then make this strut assembly Upper implant 1 and lower implant 6 are separated from each other (upper distance between implant 1 and lower implant 6 along the length direction of vertebra It is gradually increased), thus strut the gap between two vertebras, in order to doctor can see the situation between vertebra And carry out next step operation.The specific configuration of described implants 10 for spinal decompression is described below.On plant The surface of body 1 and lower implant 6 is equipped with the through hole 5 passed for bone screw, as it is shown in figure 1, upper implant 1 and under The surface of implant 6 is equipped with 2 through holes 5 passed for bone screw.

In the present embodiment, in the form of sheets, upper insertion section 2 is positioned at the lower end of implant 1, upper insertion section 2 to upper implant 1 Vertical with upper implant 1, upper insertion section 2 is strip or lamellar.Preferably go up top and the anterior plate fixation of implant 1 The structure of end is identical.The medianly zygomorphic insertion section 2 that is provided with of upper implant 1 lower end, i.e. goes up implant 1 lower end Being provided with two upper insertion sections 2, upper insertion section 2 is strip, and two upper insertion sections 2 are parallel to each other.Upper implant 1 time End is additionally provided with low groove, and this low groove is on two between insertion section 2.This low groove inserts ridge in upper insertion section 2 During intervertebral space, can be so that the gap observed between vertebra；This low groove, can be so that seeing when strutting vertebra gap Examine the situation between vertebra.The upper end of lower implant 6 is additionally provided with upper groove, when the most softened, this upper groove and this under Area between groove is 1cm²～3cm²。

In the present embodiment, the section configuration of upper insertion section 2 is top isosceles triangle upward, as shown in Figure 3； Or the water-drop-shaped that tip is upward, as shown in Figure 4；Or inverted T-shaped, as shown in Figure 5；Or top be top upward etc. Lumbar triangle shape bottom is top upward trapezoidal.That preferably goes up in the middle part of insertion section 2 monosymmetric is provided with bar shaped fin 3, Fin 3 is arranged along the length direction of upper insertion section 2, in two fins 3 are generally aligned in the same plane.

In the present embodiment, upper implant 1 and lower implant 6 mirror image each other, upper implant 1 and lower implant 6 are positioned at same flat In face, as depicted in figs. 1 and 2.Due to upper implant 1 and lower implant 6 mirror image each other, so no longer to lower implant 6 Concrete structure carry out repeating introducing.Upper insertion section 2 and lower insertion section 7 can mirror image each other symmetrical above and below, on two Distance between insertion section 2 is equal to the distance between two lower insertion sections 7；Or, upper insertion section 2 and lower insertion section 7 can be after mirror image each other symmetrical above and below, and stagger between upper insertion section 2 and lower insertion section 7 a certain distance, i.e. upper inserts The position entering portion 2 and lower insertion section 7 is crisscross arranged, as it is shown in figure 9, such as the distance between two upper insertion sections 2 also The distance between two lower insertion sections 7 can be less than, or, the distance between two upper insertion sections 2 can also be more than Distance between two lower insertion sections 7, if the upper insertion section 2 in left side is to the distance etc. between the lower insertion section 7 in left side The distance between the lower insertion section 7 on right side is arrived, under the lower insertion section 7 in left side to right side in the lower insertion section 7 in left side Distance between insertion section 7 equal to the lower insertion section 7 on right side to the distance between the upper insertion section 2 on right side.So go up Stagger in the position of insertion section 2 and lower insertion section 7, it is simple to vertebra gap is inserted in upper insertion section 2 and lower insertion section 7.

In the present embodiment, this strut assembly include being positioned at the symmetrically arranged upper adjustment barrel 4 in implant 1 left and right sides, It is positioned at the symmetrically arranged lower adjustment barrel 9 in lower implant 6 left and right sides and two screw rods 11, upper adjustment barrel 4 and lower regulation Cylinder 9 is tubular structure, and the inner surface of upper adjustment barrel 4 and lower adjustment barrel 9 is equipped with female thread, the screw rod in left side Threaded with the upper adjustment barrel 4 in left side and the lower adjustment barrel 9 in left side respectively in the both sides up and down of 11, the screw rod on right side Threaded with the upper adjustment barrel 4 on right side and the lower adjustment barrel 9 on right side respectively in the both sides up and down of 11, screw rod 11 top Thread rotary orientation and the thread rotary orientation of screw rod 11 bottom contrary, rotate two screw rods 11 simultaneously and can make implant 1 Separate smoothly with lower implant, thus after the gap between two vertebras is inserted in upper insertion section 2 and lower insertion section 7, Strut the gap between two vertebras.For the ease of the rotation of screw rod 11, screw rod 11 be fixedly arranged in the middle of nut 8 (as Nut 8 welds with screw rod 11), nut 8 can not and screw rod 11 between produce relative rotation, rotating nut 8 Rotate screw rod 11.

All parts of this implants being used for spinal decompression all can use medical titanium alloy to make.Upper adjustment barrel 4 Non-dismountable it is connected (welding) or removably connect (grafting or screw connect) with using between upper implant 1 Mode.Non-dismountable connection (welding) can also be used between lower adjustment barrel 9 and lower implant 6 or removably connect (slotting Connect or screw connect) mode.The left and right sides of upper implant 1 is provided with to be easy to and upper adjustment barrel 4 connects fixing prominent Portion, upper adjustment barrel 4 is fixed on this protuberance, as depicted in figs. 1 and 2.

It is described above the specific configuration of the implants for spinal decompression, is described below and is used for the interior of spinal decompression with this Plant with the use of a kind of Intervertebral disc fusion device, this Intervertebral disc fusion device 20 is provided with track runner for both sides, Without top, the bottomless and drawer-type structure of hollow, the upper surface of this Intervertebral disc fusion device 20 is provided with and upper insertion section 2 The upper hopper chute 21 (i.e. track runner) that matches of lower end, the lower surface of this Intervertebral disc fusion device 20 be provided with under The gliding groove 22 (i.e. track runner) that the upper end of insertion section 7 matches, as shown in Figure 7.When this is for spinal decompression Implants when strutting the gap between two vertebras, this Intervertebral disc fusion device 20 can rely on upper hopper chute 21 with upper The corresponding grafting of insertion section 2, upper insertion section 2 is column, and the lower end of upper insertion section 2 defines slide rail, gliding groove 22 with the corresponding grafting of lower insertion section 7, lower insertion section 7 is column, and the upper end of lower insertion section 7 also form slide rail, Thus be slideably inserted between two vertebras.The function of this Intervertebral disc fusion device is to load and gather the broken skeletal grain of transplanting, Its effective and upper sending down the fishbone soleplate is made directly to contact, it is achieved Bony union.

Introduce the most again a kind of with this be used for the implants of spinal decompression with the use of a kind of artificial intervertebral disk, this is artificial Intervertebral disc 30 is containing female members 31 setting up and down and male member 32, and female members 31 is made for macromolecular material, such as medical height Molecular material, male member 32 is made for metal material, as medical stainless steel is made, the upper surface of this female members 31 be provided with The upper hopper chute 33 that upper insertion section 2 matches, the lower surface of this male member 32 is provided with the downslide matched with lower insertion section 7 Groove 34, as shown in Figure 8.When this struts the gap between two vertebras for the implants of spinal decompression, this people Work intervertebral disc 30 can rely on the corresponding grafting of upper hopper chute 33 and upper insertion section 2, gliding groove 34 and lower insertion section 7 Corresponding grafting, thus be slideably inserted between two vertebras.

Embodiment 2

The present embodiment is a kind of improvement to embodiment 1, and in the present embodiment, this struts assembly and includes being positioned at implant The upper rack 12 of 1 left and right sides and the lower tooth bar 13 being positioned at lower implant 6 left and right sides, as shown in Figure 6, upper rack 12 fixing with upper implant 1 are connected, and lower tooth bar 13 is fixed with lower implant 6 and is connected.The sawtooth of the upper rack 12 in left side Structure is engaged mutually with the broached-tooth design of the lower tooth bar 13 in left side, under the broached-tooth design of the upper rack 12 on right side and right side The broached-tooth design of tooth bar 13 is engaged mutually, and upper rack 12 and lower tooth bar 13 overcoat are set up defences only upper rack 12 and lower tooth bar 13 sleeves 14 separated, this struts assembly and is only capable of and makes implant 1 and the lower unidirectional separation of implant 6, and does not makes to plant Mutually draw close between body 1 and lower implant 6, be i.e. only capable of and make the distance between implant 1 and lower implant 6 become greatly and not The distance between implant 1 and lower implant 6 can be made to diminish.

The other technologies feature of the present embodiment is the most same as in Example 1, and in order to save length, this patent is situated between the most in detail Continue.

It is described above the implants for spinal decompression, Intervertebral disc fusion device and the specific configuration of artificial intervertebral disk, Below citing is introduced the application of this implants being used for spinal decompression, for the ease of the reason of non-medical applications technical staff Solving, this patent comprehensively will be introduced in conjunction with background technology.In embodiment 1 and embodiment 2 for spinal decompression Implants all can use in herein below.

Spinal column degeneration, is law of development inevitable in the course of human life, the only difference of degree weight, Just as life must move towards termination, it is inevitable.Therefore, once oppressed spinal cord, do not had at life Causing paraplegia symptom before termination, and Progressive symmetric erythrokeratodermia increases the weight of, decompression also rebuilds stable function, is uniquely to control Treatment method.And the development of technology, direction can only be that promotion method is the most perfect.For decompression and implants implanting step Rapid separation so that it is poor to dissect suitability, and loosening, the displacement caused, dislocate, sink to entering vertebral body (by The vertebral cancellous bone destroyed for the first time during decompression), it is narrow that the height after making intervertebral space rebuild is lost and again become.

For these problems, applicant's utility model is for the implants 10 of spinal decompression, it is intended to make implants from First body has the reliable and stable function axially strutting adjustment, without being further divided into two separate steps, thoroughly exempts from The first time to vertebral cancellous bone is caused to destroy except using thicker vertebral body nail because of strutting；For solving to dissect adaptation Property, make implants and decompression remove pathology and cause to press the intervertebral space space after the disc tissue of regression accurately to fit, strut After decompression, with upper and lower endplate surface for " ground ", two tracks are respectively set, define the tight patch on face with this Close, enter the accurate distance of the degree of depth, and confirm under direct-view, thus fundamentally avoid and deeply again oppress because implanting The danger of spinal cord.It is at after being provided with due to track fully strutting and under the state of secure support, static state now I.e. the height filled of accurate required implants, thus be inherently eliminated strut decompression with apparatus after implant again Implants, the clearance height brought because of the replacing of apparatus changes the dissection suitability error necessarily caused, and can only Make up by patient's experience, technology and feel, the most objectively cause the difference of surgical outcome and the product of consecutive complications Raw.After this technology fully struts pathological changes gap, except providing good sight line, it is simple to outside safety fully decompression, actual On the most just complete the important step laying this implantation of track, strut decompression and implants selects to implant by traditional Two steps separated from one another, are combined into a step, disc height now, are i.e. dissect needed for adaptation completely the most quiet Height under state.Prefabricated load bone bone grafting fusion cage, height is for seriation, and the gap with 1mm as ladder, from Little 7mm, to maximum 14mm, covers all height of mankind's intervertebral space, selects optimum one piece, sends into track Insert, as still there being resistance, then do the fine setting within 1mm, until the insertion such as drawer type puts in place smoothly, i.e. complete Whole implantation of interplantation, reduce pressure and repair stable accomplishing without any letup.Equally, as selected to use non-fused artificial intervertebral disk, The artificial intervertebral disk that the load bone fusion device of intervertebral bone graft is then replaced by a kind of combined type is (interior for spherical-concave-surface joint, sphere For metal, concave surface is macromolecule polymer material, for existing general artificial joint process materials), select identical chi Very little, still insert as sending into drawer, but when non-fused art formula, be by the positive/negative thread nut of longitudinal both sides It is plug-type movable connection method that bolt was replaced by advance with coupling of track steel plate, puts in place when artificial intervertebral disk inserts After, remove the nut bolt of bilateral, i.e. complete to implant.This mode defines three dimensions two-way mechanics integral module. In fusion mode, the laying of track steel plate is double except two track strip steel (i.e. going up insertion section 2 and lower insertion section 7) embed Outside the soleplate of side, steel plate separately has two pieces of cancellous bone screws to enter vertebral cancellous bone, forms strong efficient support power region, Make the support force of spongy bone under the soleplate of double track basis be changed into track steel plate L-type and become the support force of angular position metal and big Big enhancing.L-type track steel plate is after the longitudinal bolt of bilateral is connected up and down, controls vertebral body and produces and spinal column axial load The distracting force resisted mutually, makes narrow intervertebral space efficiently separate expansion, makes committed step possess the decompression of spinal cord directly Depending on lower good sight line, after having reduced pressure, the disc height expanded under resting state, it is i.e. to dissect adaptive standard Exact figures evidence, directly chooses the Intervertebral disc fusion device being precisely suitable for, just like the plug-type mode of drawer, is sent directly into, Just as drawer closes, accurately put in place, i.e. complete the process implanted.Now, the axial load load-bearing that spinal column is daily, The intervertebral metal bone grafting fusion cage then inserted by drawer completely undertakes, therefore produces the carrying of the bilateral stud of axial distracting force Supporting and effectively shared, the probability of its metal fatigue fracture is almost nil.Simultaneously as be integrally attached to, front and back, Left and right, upper and lower three dimensions are all fixed, and active force offsets, as no matter bone grafting fusion cage sinks to up or down Vertebral body, then can be produced pulling force by the other end and effectively be limited, form good stablizing, and reach preferably to stablize shape State, be clearly effectively prevented loosening, dislocate, the generation of the complication such as sinking, until Bony union.Equally, as Select non-fused artificial disc after arthroplasty to implant, then axially adjustable for the bilateral positive/negative thread bolt strutted is changed into dismountable Mode, after having strutted and thoroughly reducing pressure, the prosthese of adaptation is dissected in choosing completely, and drawer type inserts location, and along rail Between interface, road after snap-lock, removing bi-lateral support bolt, artificial disc after arthroplasty can produce flexion movement (front and back), About Tong Shi, the most substantially stabilized, reach the steady statue that current manual's cervical intervertebral disk is optimal, effectively avoid vacation Body dislocation, the complication sunk occur.

Anterior plate fixation, has been that the most worldwide medical device implants supervision department in various countries' generally ratifies In one of clinical widely used spinal column implants, with anterior plate fixation as basic structure, one end is cervical steel plate sample Formula, the other end is to extend the considerable of hollow along steel plate both sides, and in position in 90 ° of bendings, it is considerable transversal Face is trapezoidal triangle, and centre has fin 3 to form ladder type triangle, and tip (i.e. the upper end of Fig. 3 to Fig. 5) can embed end Plate, fin 3 is fitted and is fixed on endplate surface trapezium structure track after soleplate.The L-shaped track steel plate of the same track of two panels Relatively, outside fix (or plug-type) two ends positive/negative thread nut bolt and be connected with steel plate, the four of 90 ° of bendings Foot is relatively (as shown in Figure 1).During implantation, first four-footed track (upper insertion section 2 and lower insertion section 7) is inserted Tentatively removing the intervertebral space of regression disc tissue, after putting in place, two ends steel plate can be fitted with conical surface, now, Rotating both sides positive/negative thread bolt 11 then makes both sides steel plate (upper implant 1 and lower implant 7) separate, and four-footed is close to Lower soleplate, after trapezoidal triangle tip embeds soleplate, rotation bolt 11 further, on steel plate, implant vertebral cancellous simultaneously Bone screw, makes steel plate fit tightly assurance vertebral body, and conical surface is fixed at two ends, further rotates bilateral bolt, Producing enough distracting force, the gap making regression narrow is returned to optimum state.The step for be i.e. that implant is dissected suitable The necessary step joined, is also decompression simultaneously, makes sight line enter deep, and clear view to pathological changes oppresses spinal cord position Steps necessary.In clinical practice at present, the two step is still separation；Current all of implants does not possesses Appear the function of visual area.Therefore, this structure and conception, be one of the clear and definite innovative point of this enforcement technology, will Two committed steps that visual area, deep and implants are implanted combine；Another innovative point is predetermined trajectory, Make implant (bone grafting fusion cage 20 or cervical artificial disc 30) and post-decompression space and dissect adaptive accurate height Degree, combines closely.Meanwhile, track define the safe degree of depth and scope, simultaneously because the stinging of track Close, it is achieved that stable and fixing between interface, specify intuitive and reliable eliminate loosening, shift, dislocate, sink Hidden danger, makes the technical advantage of implants, has performed to unprecedented desired level, and structure is simple and clear simultaneously, decreases raw steel Plate is completely covered the area of cervical vertebra, and manufacturing process is uncomplicated, has clear and definite realizability intuitively.

The beneficial effects of the utility model are:

The above, only specific embodiment of the utility model, it is impossible to limit the scope that utility model is implemented with it, So the displacement of its equivalent assemblies, or the equivalent variations made according to this utility model scope of patent protection and modification, all answer Still fall within the category that this patent is contained.It addition, between technical characteristic and technical characteristic in this utility model, technology special Levy between technical scheme, all can use with independent assortment between technical scheme and technical scheme.

Claims

1. the implants for spinal decompression, it is characterised in that the described implants for spinal decompression (10) Including upper implant (1) and lower implant (6), the bottom of upper implant (1) is provided with the upper insertion for inserting vertebra gap Portion (2), the top of lower implant (6) is provided with the lower insertion section (7) for inserting vertebra gap, upper insertion section (2) Can be inserted simultaneously into vertebra gap with lower insertion section (7), the described implants for spinal decompression also includes making What upper implant (1) and lower implant (6) separated struts assembly.

Implants for spinal decompression the most according to claim 1, it is characterised in that upper implant (1) in Lamellar, upper insertion section (2) are positioned at the lower end of implant (1), and upper insertion section (2) are vertical with upper implant (1), Upper insertion section (2) is strip or lamellar.

Implants for spinal decompression the most according to claim 1, it is characterised in that under upper implant (1) The left and right sides of end is equipped with insertion section (2), and upper insertion section (2) are positioned at the lower end of implant (1), upper insertion Portion (2) is vertical with upper implant (1), and upper insertion section (2) are column, and the lower end of upper insertion section (2) is slide rail, Two upper insertion sections (2) are parallel to each other.

Implants for spinal decompression the most according to claim 1, it is characterised in that upper insertion section (2) Section configuration be top isosceles triangle upward or tip water-drop-shaped upward or inverted T-shaped or top is top End isosceles triangle bottom upward is top upward trapezoidal.

Implants for spinal decompression the most according to claim 4, it is characterised in that upper insertion section (2) The both sides at middle part are equipped with bar shaped fin (3), and fin (3) is arranged along the length direction of upper insertion section (2), two In fin (3) is generally aligned in the same plane.

Implants for spinal decompression the most according to claim 1, it is characterised in that this struts assembly bag The lower adjustment barrel include the upper adjustment barrel (4) being positioned at implant (1) left and right sides, being positioned at lower implant (6) left and right sides (9) and two screw rods (11), the both sides of the screw rod (11) in left side respectively with upper adjustment barrel (4) and the left side in left side The lower adjustment barrel (9) of side is threaded, the both sides of the screw rod (11) on right side respectively with the upper adjustment barrel (4) on right side Threaded with the lower adjustment barrel (9) on right side, the thread rotary orientation on screw rod (11) top and screw rod (11) bottom Thread rotary orientation is contrary, rotates two screw rods (11) and implant (1) and lower implant (6) can be made to separate.

Implants for spinal decompression the most according to claim 1, it is characterised in that this struts assembly bag Include the upper rack (12) being positioned at implant (1) left and right sides and the lower tooth bar (13) being positioned at lower implant (6) left and right sides, The broached-tooth design of upper rack (12) in left side is engaged mutually with the broached-tooth design of the lower tooth bar (13) in left side, right side upper The broached-tooth design of tooth bar (12) is engaged mutually with the broached-tooth design of the lower tooth bar (13) on right side, upper rack (12) and under Tooth bar (13) overcoat is set up defences the sleeve (14) that only upper rack (12) and lower tooth bar (13) separate, and this struts assembly It is only capable of and makes implant (1) and lower implant (6) unidirectional separation.

Implants for spinal decompression the most according to claim 1, it is characterised in that upper implant (1) and Lower implant (6) mirror image each other, in upper implant (1) and lower implant (6) are generally aligned in the same plane.

9. an Intervertebral disc fusion device, it is characterised in that the upper surface of this Intervertebral disc fusion device (20) is provided with Match with the upper insertion section (2) of the implants for spinal decompression described in any one in claim 1～8 Upper hopper chute (21), the lower surface of this Intervertebral disc fusion device (20) is provided with and any one institute in claim 1～8 The gliding groove (22) that the lower insertion section (7) of the implants for spinal decompression stated matches.

10. an artificial intervertebral disk, it is characterised in that this artificial intervertebral disk (30) is containing female members (31) setting up and down With male member (32), the upper surface of this female members (31) be provided with described in any one in claim 1～8 for ridge The upper hopper chute (33) that the upper insertion section (2) of the implants of vertebra decompression matches, the lower surface of this male member (32) is provided with Match with the lower insertion section (7) of the implants for spinal decompression described in any one in claim 1～8 Gliding groove (34).