CN209645144U

CN209645144U - Motive power implants for spinal decompression

Info

Publication number: CN209645144U
Application number: CN201720988573.9U
Authority: CN
Inventors: 邹德威
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-08-09
Filing date: 2017-08-09
Publication date: 2019-11-19
Anticipated expiration: 2027-08-09

Abstract

The utility model discloses a kind of motive power implants for spinal decompression, including base plate (10) and the first plugboard (20), the one side edge of the base plate (10) is fixedly connected there are two rack gear, first plugboard (20) is included there are two gear, first plugboard (20) and base plate (10) grafting, first gear (21) and second gear (22) intermeshing；When screwing first gear (21), the distance between the first plugboard (20) and base plate (10) can be adjusted.This is used for the motive power implants first of spinal decompression, passes through predetermined trajectory, it can be ensured that precisely adaptation, convenient implantation and safety.The second, adjustable axle realizes precisely adjustment gap to strutting, compressing, and union depressurizes and be implanted as a step.Third, implants and upper and lower centrum form the whole mechanics module of three-dimensional, screw placement vertebral cancellous bone, and track is embedded in soleplate, and track and fusion device occlusion are fixed between realizing interface.

Description

Motive power implants for spinal decompression

Technical field

The utility model relates to a kind of medical instrument, a kind of particularly motive power implants for spinal decompression.

Background technique

The decompression of anterior cervical vertebrae intervertenral space, bone grafting fusion are the classics operations after over half a century, and solve cervical vertebra and move back Row change, the unique effective ways of spinal compression cervical spondylotic myelopathy.The key of operation is thoroughly depressurized to spinal cord.After decompression Defect is left after the disc tissue for the intervertenral space removing regression left, bone grafting converged reconstruction is needed to stablize.Except traditional self ilium Three musculus cutaneus matter bone block of bone is filled outside bone grafting, in recent years, various new technology sequential uses.Fall off, shift for the bone block after bone grafting, The complication such as complication and the neurotrosis of ilium donor site, pain, infection such as sinking are widely used in addition to substituting bone-grafting material Major technique has: Intervertebral disc fusion device adds anterior plate to fix again, forms representative major technique at present, or even be referred to as " goldstandard " for treating retrogression.

Problem of the existing technology is the key that: anterior cervical operation is thoroughly effective to spinal cord progress from intervertenral space Decompression, but in the process of cervical spine degeneration, the most Serious Stenosis of interbody space, general surgical instrument, such as curet, nucleus pulposus clamp Deng, be all difficult to enter, sight be even more seriously blocked.Therefore, to reach thoroughly effective decompression, first have to borrow centrum nail and outer The vertebrae strutting device set axially struts the narrow intervertenral space of regression, expands intervertenral space, so that the sight of patient is seen clearly and be convex to Object is pressed in the cause of intraspinal tube, and instrument is sent into, and carefully pressure object will be caused to separate and take out from spinal cord surface.But after this step is implemented, Centrum nail is often cut in vertebral cancellous bone, causes cancellous bone fracture, iatrogenic osteoporosis；After the completion of decompression, implantation Intervertebral disc fusion device, be commonly hardness at present and be made much larger than the metal of cancellous bone and poly- fan's ethyl ketone material, and generally deposit Larger in fusion device height step span, therefore, dissection suitability is poor: height is insufficient, then is easy to loosen dislocation；It is highly excessive, Then be easy sink, squeeze on or below centrum, making intervertenral space, stenosis is narrow again.To prevent these problems, generally in implantation intervertebral After bone grafting fusion cage, then plus anterior plate fix, but because strutted in art using centrum nail primary destruction has been carried out to cancellous bone, very To " cutting ".And anterior approach clinic ratifies all implants used at present, itself does not have axial distracted ability backward, It such as Invasive lumbar fusion device and steel plate, and is once implanted into, has just blocked sight completely, and any decompression cannot be carried out again, therefore when decompression After the completion, it because centrum follows closely the destruction to cancellous bone, then implant plate, therefore usually substantially reduces steel plate screw stability, and deposits In the potential danger that steel plate loosens.In recent years, it is not merged after decompression, and uses the non-fusion technology of reconstruction (using artificial The non-fused implants Using prosthesis of cervical intervertebral disk), because the purpose is to save reconstruction motor function, therefore cannot again plus steel plate is solid It is fixed.Retrogression pathological changes mostly occur in the middle-aged and the old, are often associated with different degrees of osteoporosis, therefore the above problem often results in The severe complications such as dislocation, loosening, the sinking of bone grafting fusion cage especially no longer add the cervical artificial disc of Interal fixation, pine Dynamic, sinking, abjection even drop out completely, generate severe complication, and operation is made to fall flat, and become and perplex the great of doctor and patient Problem does not obtain satisfied solution yet at present.

Utility model content

In order to solve the problems, such as that existing implants system is inconvenient for use in spinal decompression operation, the utility model is provided A kind of motive power implants for spinal decompression, this is used for the motive power implants first of spinal decompression, passes through predetermined trajectory, It may insure precisely to be adapted to, convenient implantation and safety.The second, adjustable axle realizes precisely adjustment gap to strutting, compressing, and Collection depressurizes and is implanted as a step.Third, implants and upper and lower centrum form three-dimensional whole mechanics module, screw placement vertebral cancellous Bone, track are embedded in soleplate, and track and fusion device occlusion are fixed between realizing interface.

The technical scheme adopted by the utility model to solve the technical problem is as follows: in a kind of motive power for spinal decompression Plant, comprising: base plate, the base plate one side edge be fixedly connected there are two rack gear, which is respectively the first tooth Item and the second rack gear, the first rack gear and the second rack gear are parallel to each other；First plugboard, first plugboard are included there are two tooth Wheel, two gears are respectively first gear and second gear, two rack gear grafting of the first plugboard and the base plate, and first Gear and second gear are between the first rack gear and the second rack gear, first gear and second gear intermeshing, first gear It is also engaged with the first rack gear, second gear is also engaged with the second rack gear；When screwing first gear, the first plugboard and base plate The distance between be capable of increasing or reduce.

The one side edge of base plate is also fixedly connected with the first grafting track, and the first grafting track is located at the first rack gear And second between rack gear, the first grafting track is in the form of a column, and the first grafting track is vertical with base plate.

Also containing there are two gear installation groove and two rack gear grafting channels in first plugboard, two gear installations are recessed Slot is respectively first gear installation groove and second gear installation groove, which is respectively that the first rack gear is inserted It connects road and the second rack gear grafting channel, first gear installation groove is connected to second gear installation groove, first gear installation Groove is also connected to the first rack gear grafting channel, and second gear installation groove is also connected to the second rack gear grafting channel.

First gear is located in first gear installation groove, and first gear installation groove matches with first gear, and second Gear is located in second gear installation groove, and second gear installation groove matches with second gear, and the first rack gear is plugged in One rack gear grafting channel, the second rack gear are plugged in the second rack gear grafting channel.

The first column is equipped in first gear installation groove, first gear is sheathed on outside the first column, and first gear can It is rotated by axis of the first column, one end of the first column is fixedly connected with the first plugboard, and the other end of the first column is equipped with the One screw, the head of the first screw can prevent first gear to be detached from first gear installation groove.

It is equipped with first sliding groove in first plugboard, is equipped with locking tooth in first sliding groove, one end of locking tooth is wedge angle, first Sliding slot is connected to first gear installation groove or second gear installation groove, and locking tooth can be slided along first sliding groove, works as locking When one end of tooth is inserted into the edge of the gear and is fixed, which is no longer able to turn.

First gear is equipped with multiple strip grooves for screwing first gear, and the multiple strip groove is along the first tooth The circumferential uniform intervals of wheel are arranged, and first gear is identical as the size of second gear and structure.

The one side edge of the base plate is equipped with the first hook portion, and the first hook portion is located at the first rack gear and the second rack gear Between, which is located at the front of base plate, and the opening of the first hook portion is towards the back side of base plate, the first plugboard court The second hook portion is equipped with to one end of base plate, and the first hook portion and the second hook portion are symmetrical arranged and mirror image each other.

The motive power implants for spinal decompression further include the second plugboard, the second plugboard and the first plugboard Size it is identical with structure, two rack gear grafting of the second plugboard and the base plate, base plate, the first plugboard and second insert Fishplate bar is linearly arranged successively.

Another side edge of the base plate is fixedly connected with third rack gear and the 4th rack gear, third rack gear and the 4th rack gear phase Mutually parallel, the motive power implants for spinal decompression further include third plugboard, third plugboard and the first plugboard Size it is identical with structure, the third rack gear of third plugboard and the base plate and the 4th rack gear grafting, third plugboard, basis Plate and the first plugboard are linearly arranged successively.

The beneficial effects of the utility model are:

The first, pass through predetermined trajectory, it can be ensured that precisely adaptation, convenient implantation and safety.

The second, adjustable axle realizes precisely adjustment gap, union depressurizes and is implanted as a step, with backbone to strutting, compressing Lesion segment forms the mechanics module of three-dimensional stability, thoroughly eliminates the diseases such as fusion device (or artificial intervertebral disk) displacement, sinking, dislocation Send out disease.

Third, implants and upper and lower centrum form three-dimensional whole mechanics module, screw placement vertebral cancellous bone, track insertion Soleplate, track and fusion device occlusion are fixed between realizing interface.

Detailed description of the invention

The accompanying drawings constituting a part of this application is used to provide a further understanding of the present invention, this is practical Novel illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model.

Fig. 1 is the main view described in the utility model embodiment 1 for the motive power implants of spinal decompression.

Fig. 2 is the softened state signal described in the utility model embodiment 1 for the motive power implants of spinal decompression Figure.

Fig. 3 is the stereoscopic schematic diagram of the first plugboard in the utility model embodiment 1.

Fig. 4 is the stereoscopic schematic diagram of base plate in the utility model embodiment 1.

Fig. 5 is described in the utility model embodiment 1 for the vertical of the clamped condition of the motive power implants of spinal decompression Body schematic diagram.

Fig. 6 is described in the utility model embodiment 1 for the vertical of the softened state of the motive power implants of spinal decompression Body schematic diagram.

Fig. 7 is the stereoscopic schematic diagram of implant in the utility model embodiment 1.

Fig. 8 is the use state signal described in the utility model embodiment 1 for the motive power implants of spinal decompression Figure.

Fig. 9 is cross-sectional view when first plugboard is without containing gear in the utility model embodiment 1.

Figure 10 is cross-sectional view when first plugboard contains gear in the utility model embodiment 1.

Figure 11 is the enlarged diagram at locking tooth position in the utility model embodiment 1.

Figure 12 is the structural schematic diagram of gear screwing tool.

Figure 13 is the main view described in the utility model embodiment 2 for the motive power implants of spinal decompression.

Figure 14 is the first plugboard end stereoscopic schematic diagram in the utility model embodiment 2.

Figure 15 is the first plugboard end schematic cross-sectional view in the utility model embodiment 2.

Figure 16 is the stereoscopic schematic diagram of implant in the utility model embodiment 2.

Figure 17 is the use state signal described in the utility model embodiment 2 for the motive power implants of spinal decompression Figure.

Figure 18 is the main view described in the utility model embodiment 3 for the motive power implants of spinal decompression.

Figure 19 is the main view described in the utility model embodiment 4 for the motive power implants of spinal decompression.

Figure 20 is the motive power implants another kind implementation for spinal decompression.

10, base plate；20, the first plugboard；30, the second plugboard；40, third plugboard；50, vertebra；

11, the first rack gear；12, the second rack gear；13, the first grafting track；14, screw hole；15, the first hook portion；16, Three rack gears；17, the 4th rack gear；

21, first gear；22, second gear；23, first gear installation groove；24, second gear installation groove； 25, First rack gear grafting channel；26, the second rack gear grafting channel；27, the first column；28, the second column；29, the first screw；210, Second screw；211, first sliding groove；212, locking tooth；213, strip groove；214, the second hook portion；215, the second grafting rail Road.

Specific embodiment

It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase Mutually combination.The utility model will be described in detail below with reference to the accompanying drawings and embodiments.

Embodiment 1

A kind of motive power implants for spinal decompression, including base plate 10 and the first plugboard 20；The base plate 10 Upper edge be fixedly connected there are two rack gear, which is respectively the first rack gear 11 and the second rack gear 12, the first rack gear 11 and second rack gear 12 be parallel to each other；Fixed in first plugboard 20 there are two gears, which is respectively the first tooth Wheel 21 and second gear 22, two rack gear grafting of the first plugboard 20 and the base plate 10, first gear 21 and second gear 22 between the first rack gear 11 and the second rack gear 12, and first gear 21 and second gear 22 are intermeshed, and first gear 21 is also It is engaged with the first rack gear 11, second gear 22 is also engaged with the second rack gear 12；When screwing first gear 21, the first plugboard 20 The distance between base plate 10 is capable of increasing or reduces, as depicted in figs. 1 and 2.

In the present embodiment, the upper edge of base plate 10 is also fixedly connected with the first grafting track 13, the first grafting rail Between the first rack gear 11 and the second rack gear 12, the first grafting track 13 is in the form of a column in road 13, the first grafting track 13 and basis Plate 10 is vertical.The section of first grafting track 13 is triangular in shape, and the two sides of the first grafting track 13 are additionally provided with fin.First grafting The lower edge of plate 20 is also fixedly connected with the second grafting track 215, the second grafting track 215 and the first about 13 grafting track Symmetrically and each other mirror image.As shown in Figures 1 to 8, when the softened state for the motive power implants of spinal decompression, implantation Body can be inserted between base plate 10 and the first plugboard 20.Base plate 10 and the first plugboard 20 are in the same plane.

In the present embodiment, also containing there are two gear installation groove and two rack gear grafting in the front of the first plugboard 20 Channel, two gear installation grooves are respectively first gear installation groove 23 and second gear installation groove 24, two teeth Grafting channel is respectively the first rack gear grafting channel 25 and the second rack gear grafting channel 26, first gear installation groove 23 and The connection of two gear installation grooves 24, first gear installation groove 23 are also connected to the first rack gear grafting channel 25, second gear peace Dress groove 24 is also connected to the second rack gear grafting channel 26.

In the present embodiment, first gear 21 is located in first gear installation groove 23, first gear installation groove 23 with First gear 21 matches, and second gear 22 is located in second gear installation groove 24, second gear installation groove 24 and second Gear 22 matches, and the first rack gear 11 is plugged in the first rack gear grafting channel 25, and the second rack gear 12 is plugged in the second rack gear grafting Channel 26, the first rack gear grafting channel 25 and the second rack gear grafting channel 26 can prevent 22 edge of first gear 21 and second gear It is radial to be detached from the first plugboard 20.

In the present embodiment, the first column 27 is equipped in first gear installation groove 23, first gear 21 is sheathed on first Outside column 27, first gear 21 can be axis rotation with the first column 27, can be between first gear 21 and the first column 27 Transition fit, one end of the first column 27 are fixedly connected with the first plugboard 20, and the other end of the first column 27 is equipped with the first spiral shell The outer diameter of nail 29, the head of the first screw 29 is greater than between the centre bore of first gear 21, the head of such first screw 29 First gear 21 can be prevented to be axially disengaging first gear installation groove 23, as shown in Figure 9 and Figure 10.

In the present embodiment, the second column 28 is equipped in second gear installation groove 24, second gear 22 is sheathed on second Outside column 28, second gear 22 can be axis rotation with the second column 28, and one end of the second column 28 and the first plugboard 20 are solid The other end of fixed connection, the second column 28 is equipped with the second screw 210, and the head of the second screw 210 can prevent second gear 22 It is axially disengaging second gear installation groove 24.Second screw 210 is identical as the size of the first screw 29 and structure.

In the present embodiment, in order to which the distance between base plate 10 and the first plugboard 20 are capable of fixing, the first plugboard It is equipped with first sliding groove 211 in 20, is equipped with locking tooth 212 in first sliding groove 211, as shown in figure 11, one end of locking tooth 212 is Wedge angle, first sliding groove 211 are connected to first gear installation groove 23 or second gear installation groove 24, and locking tooth 212 being capable of edge First sliding groove 211 is slided, and when one end of locking tooth 212 is inserted into the edge of the gear and is fixed, which cannot turn again It is dynamic.

Specifically, as depicted in figs. 1 and 2, first sliding groove 211 is connected to second gear installation groove 24,212 energy of locking tooth Enough to slide along first sliding groove 211, one end of locking tooth 212 is inserted into the between cog at 22 edge of second gear to make first gear 21 and second gear 22 be not able to rotate, so that the distance between base plate 10 and the first plugboard 20 are capable of fixing.Locking tooth When the between cog at 212 one end insertion 22 edge of second gear, locking tooth 212 can be fixed in first sliding groove 211 with screw. The section of locking tooth 212 is inverted T-type structure, and the section of the section and locking tooth 212 of first sliding groove 211 matches, can prevent Locking tooth 212 is detached from first sliding groove 211.

In the present embodiment, first gear 21 is equipped with multiple strip grooves 213 for screwing first gear 21, described Multiple strip grooves 213 are arranged along the circumferential uniform intervals of first gear 21, the size of first gear 21 and second gear 22 and Structure is identical.First gear installation groove 23 is identical also identical with the size and structure of second gear installation groove 24.In order to just In screwing first gear 21 and second gear 22, the utility model additionally provides a kind of gear screwing tool, as shown in figure 12, should One end of gear screwing tool is equipped with multiple bar shaped fins, and multiple bar shaped fin is docked with the matching of the strip groove 213 of gear Afterwards, by rotating the tool, gear can easily be screwed.

Embodiment 2

The present embodiment is a kind of improvement to embodiment 1, and the present embodiment is the difference from embodiment 1 is that the base plate 10 Upper edge be equipped with the first hook portion 15, the first hook portion 15 is between the first rack gear 11 and the second rack gear 12, this two Gear is located at the front of base plate 10, and the opening of the first hook portion 15 is towards the back side of base plate 10,20 direction of the first plugboard One end (lower end in such as Figure 13) of base plate 10 is equipped with the second hook portion 214, and the first hook portion 15 and the second hook portion 214 are right Claim setting and each other mirror image, as shown in FIG. 13 to 15.

The front of the base plate 10 is towards the surface on the outside of drawing in Figure 13, the middle part of the upper edge of the base plate 10 Equipped with the first sliding recess, the middle part of the lower edge of the first plugboard 20 is equipped with the second sliding recess, is used for ridge with this at this time The implant that the motive power implants of vertebra decompression match is as shown in figure 16.

In the present embodiment, the first hook portion 15 and the second hook portion 214 are for being embedded in vertebra 50 and connecting with vertebra 60 Connect fixation, this is used for the softened state of the motive power implants of spinal decompression, can to base plate 10 and the first plugboard 20 it Between be inserted into Figure 16 shown in implant, be inserted into implant after as shown in figure 17.The length and width ruler of base plate 10 and the first plugboard 20 It is very little corresponding with 50 width of vertebra and height.

Other technical characteristics in the present embodiment are same as Example 1, and in order to save length, the present embodiment is no longer detailed It introduces.

Embodiment 3

Embodiment 1 or the motive power implants as described in example 2 for spinal decompression are most common for single gap Lesion.And in recent years, double gap lesion is also in rising trend.In order to solve this problem, the present embodiment to embodiment 1 or is implemented Example 2 is improved.

In the present embodiment, the motive power implants for spinal decompression further include the second plugboard 30, and second inserts Fishplate bar 30 is identical as the size of the first plugboard 20 and structure, two rack gear grafting of the second plugboard 30 and the base plate 10, Base plate 10, the first plugboard 20 and the second plugboard 30 are linearly arranged successively, as shown in figure 18.In use, basic Plate 10, the first plugboard 20 and the second plugboard 30 can connect one to one fixation with three pieces of vertebras, to realize double gap Decompression.

In addition, the motive power implants for spinal decompression may include the second plugboard of muti-piece 30, base plate 10, the first plugboard 20 and the second plugboard of muti-piece 30 are linearly arranged successively, and realize the company the same just like train carriage Connect, realize more than one segment Multiple level lesion of cervical vertebra use, make the utility model cover cervical vertebral space lesion decompression, Fusion.

In the present embodiment, the second plugboard 30 can be identical as the first plugboard 20 described in embodiment 1, and second inserts Fishplate bar 30 can also be identical as the first plugboard 20 described in embodiment 2.Base plate 10 can be with base described in embodiment 1 Plinth plate 10 is identical, and base plate 10 can also be identical as base plate 10 described in embodiment 2.

Other technical characteristics in the present embodiment are identical as embodiment 1 or embodiment 2, in order to save length, this implementation Example is no longer discussed in detail.

Embodiment 4

The present embodiment is a kind of improvement to embodiment 3, in order to solve the narrow and lesion of Multiple level disease, the base plate 10 lower edge is also fixedly connected with third rack gear 16 and the 4th rack gear 17, and third rack gear 16 and the 4th rack gear 17 are mutually flat Row, the motive power implants for spinal decompression further include third plugboard 40, third plugboard 40 and the first plugboard 20 size is identical with structure, 17 grafting of third rack gear 16 and the 4th rack gear of third plugboard 40 and the base plate 10, third Plugboard 40, base plate 10 and the first plugboard 20 are linearly arranged successively, as shown in figure 19.

Connect in use, third plugboard 40, base plate 10 and the first plugboard 20 can be corresponded with three pieces of vertebras 50 Fixation is connect, to realize that Multiple level depressurizes.Third rack gear 16 can be with the first rack gear 11 mirror image each other, the second rack gear 12 4th rack gear 17 mirror image each other.

Other technical characteristics in the present embodiment are same as Example 3, and in order to save length, the present embodiment is no longer detailed It introduces.

The clinical practice of cervical intervertebral artificial joint nearly ten years constantly verifies it and retains articuli intervertebrales movement under physiological status The purpose success or not of function, whether adjacent living body intervertebral reaches weight under the stress undertaken again with it and upper and lower physiological status Newly accurately balance it is closely related, and this stress rebalance key takeaway be exactly equally accurately high under ambient stress Degree, it may be said that this is the factor of a decision.It is analyzed from the case of failure or the artificial intervertebral disk of implantation is excessively high, tension It is excessive, it racks soleplate and sinks to centrum, make loss of motor function；Too low, tension is too small and loose or dislocation.For this purpose, not having Unified normal data, as crowd's height rectify it is fat or thin, it is necessary to cut the garment according to the figure, it is necessary to be individuation, on each implantation object The height that normal intervertenral space matches down, this fights without external force control accurate, leans in the environment of biomethanics cohesion stress The workmanship and feeling of doctor, is difficult perfect realization, this is undisputable fact.Only normal intervertenral space phase up and down is implanted into each The height matched could realize that cohesion stress balances, whether this has become current artificial intervertebral disk implantation success to greatest extent Determinant." the ideal height of individuation is pressed, the Using prosthesis being equally precisely adapted to is selected, the weight of tension could be managed in fact Newly evenly distributes and reach balance." the double joint positive/negative thread bolt of the utility model adjusts in parallel, fully achieve this mesh , after completing ideal adjustment, it is implanted into the artificial intervertebral disk being adapted to completely, is inserted and fixed along central single track.At this point, removing power Device realizes perfect low degree, and realize artificial intervertebral disk in three-dimensional space and move between the segment of six-freedom degree, And because of the packing interaction of track, the hidden danger for eliminating the displacement in its movement, sinking and falling off, the entirety with implants is constituted The mechanics module for the three-dimensional stability being association of activity and inertia.Existing any artificial intervertebral disk for possessing other intellectual properties, as long as It is added again on its upper and lower surface central axes and is inserted into intervertenral space with the utility model and the track slot of chimeric single armed adaptation, it can be simultaneously It uses, realizes its function.

The scheme designed above, fusion mode (most common mode) in use, have more specific advantage, And it is more specific to embody originality no in the prior art, specific as follows:

A. there is the low degree completely the same with all steel plates, eliminate external protrusion part, be more suitable for peace in human body Dress, completely eliminating adjacent thereto tracheae and esophagus of the protrusion to cervical vertebra, there may be the secret worries of interference.

B. more convenient in adjustment, bilateral positive/negative thread bolt needs to design special tool(s), and bilateral rotates simultaneously, only rotates Side, then will receive the restriction of the other side, and this scheme, it is only necessary to arbitrary in two gears in the first plugboard 20 to crouching One is adjusted, can base plate 10 and 20 plate of the first plugboard easily realize separation, close up, equally, stop adjustment, even if It is state cured, the lock tooth for being set to surface is promoted, even if global lock (as shown).

The core connotation of the utility model is clearly being disclosed for modern biotechnology mechanics study, in reality not It is disconnected to show, and but it is constantly ignored, it is clear that be not but to be hindered to realize most basic mesh of performing the operation by generally known common sense Key link break through the traditional mode repaired to static structure of static structure, based on to environment in biomethanics dynamic Deeper into cognition, tightly clasp it is dynamic and it is quiet this to contradictory focus, assign the power of quiet structure active control, fight life entity Inside seem static, but objective reality and hide there is powerful cohesion stress, when the dynamic reparation in really quiet middle hiding Picture makes it in the confrontation of power, reaches and rebuilds new dynamic equilibrium, realizes and eliminates pathological state, holds for pathogenic factor with it Continuous confrontation, rebuilds new physiological environment, and solidified in the state of the equilibrium, make life entity after eliminating pathological change as far as possible Permanent continuity makes it obtain the state of high quality as far as possible in limited course, rather than just by still may remaining Pathological change buries, is fixed, only pursues the General Result of fusion, thus specifies that the main points of the utility model are:

1. following the objective law of environment in biomethanics, from practice, into practice, has it and clearly may be used See, is credible, achievable true effect.

2. core connotation is for " dynamic " and " quiet " in environment in biomethanics, this, to contradictory focus, makes it in the confrontation of power In, by structure fixed in power type, the basic goal of operation is realized first, thoroughly the compressing of the releasing spinal cord of safety, and Control accurate reaches new physiological equilibrium in power confrontation, on this basis precisely solidification.

The above, only specific embodiment of the utility model cannot limit the range that utility model is implemented, institute with it With the displacement of its equivalent assemblies, or according to equivalent variations made by the utility model patent protection scope and modification, should all still fall within The scope that this patent is covered.In addition, between technical characteristic and technical characteristic in the utility model, technical characteristic and technical solution Between, between technical solution and technical solution use can be freely combined.

Claims

1. a kind of motive power implants for spinal decompression, which is characterized in that the motive power interplantation for spinal decompression Object includes:

Base plate (10), the base plate (10) one side edge be fixedly connected there are two rack gear, which is respectively first Rack gear (11) and the second rack gear (12), the first rack gear (11) and the second rack gear (12) are parallel to each other；

First plugboard (20), first plugboard (20) are included there are two gear, which is respectively first gear (21) and second gear (22), two rack gear grafting of the first plugboard (20) and the base plate (10), first gear (21) and For second gear (22) between the first rack gear (11) and the second rack gear (12), first gear (21) and second gear (22) are mutual Engagement, first gear (21) are also engaged with the first rack gear (11), and second gear (22) is also engaged with the second rack gear (12)；

When screwing first gear (21), the distance between the first plugboard (20) and base plate (10) are capable of increasing or reduce.

2. the motive power implants according to claim 1 for spinal decompression, which is characterized in that the institute of base plate (10) It states one side edge and is also fixedly connected with the first grafting track (13), the first grafting track (13) is located at the first rack gear (11) and second Between rack gear (12), the first grafting track (13) is in the form of a column, and the first grafting track (13) is vertical with base plate (10).

3. the motive power implants according to claim 1 for spinal decompression, which is characterized in that the first plugboard (20) Inside also containing there are two gear installation groove and two rack gear grafting channels, which is respectively first gear peace It fills groove (23) and second gear installation groove (24), two rack gear grafting channels is respectively the first rack gear grafting channel (25) With the second rack gear grafting channel (26), first gear installation groove (23) is connected to second gear installation groove (24), the first tooth Wheel installation groove (23) is also connected to the first rack gear grafting channel (25), and second gear installation groove (24) is also inserted with the second rack gear Connect road (26) connection.

4. the motive power implants according to claim 3 for spinal decompression, which is characterized in that first gear (21) position In first gear installation groove (23), first gear installation groove (23) matches with first gear (21), second gear (22) it is located in second gear installation groove (24), second gear installation groove (24) matches with second gear (22), and first Rack gear (11) is plugged in the first rack gear grafting channel (25), and the second rack gear (12) is plugged in the second rack gear grafting channel (26).

5. the motive power implants according to claim 3 for spinal decompression, which is characterized in that first gear installation is recessed The first column (27) are equipped in slot (23), first gear (21) is sheathed on the first column (27) outside, and first gear (21) can be with First column (27) is axis rotation, and one end of the first column (27) is fixedly connected with the first plugboard (20), the first column (27) The other end be equipped with the first screw (29), the head of the first screw (29) can prevent first gear (21) be detached from first gear peace It fills groove (23).

6. the motive power implants according to claim 3 for spinal decompression, which is characterized in that the first plugboard (20) It is interior to be equipped with first sliding groove (211), locking tooth (212) are equipped in first sliding groove (211), one end of locking tooth (212) is wedge angle, the One sliding slot (211) is connected to first gear installation groove (23) or second gear installation groove (24), and locking tooth (212) being capable of edge First sliding groove (211) sliding, when one end of locking tooth (212) is inserted into the edge of the gear and is fixed, which cannot It is rotated further by.

7. the motive power implants according to claim 1 for spinal decompression, which is characterized in that in first gear (21) Equipped with multiple strip grooves (213) for screwing first gear (21), the multiple strip groove (213) is along first gear (21) circumferential uniform intervals arrangement, first gear (21) are identical as the size of second gear (22) and structure.

8. the motive power implants according to claim 1 for spinal decompression, which is characterized in that the base plate (10) The one side edge is equipped with the first hook portion (15), the first hook portion (15) be located at the first rack gear (11) and the second rack gear (12) it Between, which is located at the front of base plate (10), the opening of the first hook portion (15) towards base plate (10) the back side, One plugboard (20) is equipped with the second hook portion (214) towards one end of base plate (10), the first hook portion (15) and the second hook-type Portion (214) is symmetrical arranged and mirror image each other.

9. the motive power implants according to claim 1 for spinal decompression, which is characterized in that described to subtract for vertebra The motive power implants of pressure further include the second plugboard (30), the size and knot of the second plugboard (30) and the first plugboard (20) Structure is identical, two rack gear grafting of the second plugboard (30) and the base plate (10), base plate (10), the first plugboard (20) and Second plugboard (30) is linearly arranged successively.

10. the motive power implants according to claim 1 for spinal decompression, which is characterized in that the base plate (10) Another side edge be fixedly connected with third rack gear (16) and the 4th rack gear (17), third rack gear (16) and the 4th rack gear (17) phase Mutually parallel, the motive power implants for spinal decompression further include third plugboard (40), third plugboard (40) and the The size of one plugboard (20) is identical with structure, the third rack gear (16) and the 4th of third plugboard (40) and the base plate (10) Rack gear (17) grafting, third plugboard (40), base plate (10) and the first plugboard (20) are linearly arranged successively.