CN109925102A - Lumbar Fusion prosthese - Google Patents
Lumbar Fusion prosthese Download PDFInfo
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- CN109925102A CN109925102A CN201910295804.1A CN201910295804A CN109925102A CN 109925102 A CN109925102 A CN 109925102A CN 201910295804 A CN201910295804 A CN 201910295804A CN 109925102 A CN109925102 A CN 109925102A
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- main body
- lumbar fusion
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- 230000004927 fusion Effects 0.000 title claims abstract description 74
- 239000010410 layer Substances 0.000 claims description 130
- 210000000988 bone and bone Anatomy 0.000 claims description 17
- 238000003780 insertion Methods 0.000 claims description 11
- 230000037431 insertion Effects 0.000 claims description 11
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 239000011247 coating layer Substances 0.000 claims description 3
- 229910052588 hydroxylapatite Inorganic materials 0.000 claims description 3
- XYJRXVWERLGGKC-UHFFFAOYSA-D pentacalcium;hydroxide;triphosphate Chemical compound [OH-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O XYJRXVWERLGGKC-UHFFFAOYSA-D 0.000 claims description 3
- 239000008280 blood Substances 0.000 description 11
- 210000004369 blood Anatomy 0.000 description 11
- 238000002513 implantation Methods 0.000 description 9
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- 238000005516 engineering process Methods 0.000 description 4
- 230000002924 anti-infective effect Effects 0.000 description 3
- 229960005475 antiinfective agent Drugs 0.000 description 3
- 239000003102 growth factor Substances 0.000 description 3
- 210000004872 soft tissue Anatomy 0.000 description 3
- 229910001069 Ti alloy Inorganic materials 0.000 description 2
- 238000004070 electrodeposition Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
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- 235000015097 nutrients Nutrition 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 229910000531 Co alloy Inorganic materials 0.000 description 1
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- 208000020339 Spinal injury Diseases 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
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- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
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- VSIIXMUUUJUKCM-UHFFFAOYSA-D pentacalcium;fluoride;triphosphate Chemical compound [F-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O VSIIXMUUUJUKCM-UHFFFAOYSA-D 0.000 description 1
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- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
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- Prostheses (AREA)
Abstract
The present invention provides a kind of Lumbar Fusion prosthese, the Lumbar Fusion prostheses, comprising: main body has upper counterface, lower counterface and cavity, and cavity runs through upper counterface and lower counterface；First fused layer, lid are located on the upper counterface of main body；Second fused layer, lid are located on the lower counterface of main body；Filled layer is arranged in cavity, and filled layer is between the first fused layer and the second fused layer.By technical solution provided by the present application, it is able to solve the problem of contact area in the prior art is small, intensity is unable to satisfy requirement.
Description
Technical field
The present invention relates to the field of medical instrument technology, in particular to a kind of Lumbar Fusion prosthese.
Background technique
Currently, intervertebral disk retrogression lesion is a kind of common orthopaedic disease, need to be implanted into human body in some cases
Implantation material of the Invasive lumbar fusion device as support interbody space, to realize the support to interbody space.
But Invasive lumbar fusion device in the prior art is hollow frame structure, and after Invasive lumbar fusion device is implanted into human body, vertebra
Between fusion device and adjacent bone contact area it is smaller, and frame structure is propped up inside Invasive lumbar fusion device without other component
Support, has that intensity is unable to satisfy requirement.
Summary of the invention
The present invention provides a kind of Lumbar Fusion prosthese, and to solve, contact area in the prior art is small, intensity is unable to satisfy
Requirement problem.
The present invention provides a kind of Lumbar Fusion prostheses, comprising: main body, have upper counterface, lower counterface and
Cavity, cavity run through upper counterface and lower counterface；First fused layer, lid are located on the upper counterface of main body；Second
Fused layer, lid are located on the lower counterface of main body；Filled layer is arranged in cavity, and filled layer is located at the first fused layer and the
Between two fused layers.
Further, main body is arcuate structure, main body, the first fused layer, the second fused layer and filling along its length
Layer is integrally formed, and main body has the insertion end being oppositely arranged and adjustable side along its length, and the size of insertion end is far from tune
It saves and is gradually become smaller on the direction at end.
Further, the side of the separate main body of the first fused layer is provided with the first tooth-shape structure and/or the second fused layer
The side of separate main body be provided with the second tooth-shape structure.
Further, third tooth-shape structure, the first tooth form are provided on the upper counterface and/or lower counterface of main body
The tooth form of structure, the tooth form of the second tooth-shape structure and the tooth form of third tooth-shape structure are all the same.
Further, filled layer has placed cavity, and placement window is provided on the side wall of main body, places window and cavity connects
It is logical, and place window and correspond to placed cavity setting.
Further, Lumbar Fusion prosthese further includes adjusting post, and adjusting post is arranged in cavity, adjusting post and master
Body connection, adjusting post are used to adjust the placed angle of main body.
Further, adjusting post includes adjustment hole and fixing groove, and adjustment hole is arranged in the middle part of adjusting post, in main body
Avoid holes are provided with, avoid holes correspond to adjustment hole setting, and the end face close to upper counterface of adjusting post is arranged in fixing groove
On.
Further, the first fused layer and the second fused layer are class bone trabecula porous structure, the first fused layer and/or second
The aperture of fused layer is between 300 μm to 500 μm.
Further, filled layer is diamond-like network.
Further, the grid aperture of filled layer is between 800 μm to 1000 μm.
Further, the surface of Lumbar Fusion prosthese is provided with coating, and coating includes hydroxyapatite coating layer.
It applies the technical scheme of the present invention, Lumbar Fusion prosthese includes main body, the first fused layer, the second fused layer and fills out
Fill layer.Wherein, main body has upper counterface, lower counterface and cavity, and cavity runs through upper counterface and lower cooperation
End face.Specifically, the first fused layer lid is located on the upper counterface of main body, the second fused layer lid is located to the lower cooperation of main body
On end face, and filled layer is arranged in the cavity between the first fused layer and the second fused layer.By the way that the first fused layer is arranged
With the second fused layer, after by Lumbar Fusion Using prosthesis human body, the first fused layer and the second fused layer can respectively with its phase
Adjacent bone is in contact, and to improve the contact area of Lumbar Fusion prosthese Yu adjacent bone, merges the first fused layer and second
Layer can come into full contact with corresponding bone face.Pass through cavity filled layer being arranged between the first fused layer and the second fused layer
It is interior, it can use filled layer and main body be supported, so that the intensity of Lumbar Fusion prosthese can satisfy requirement.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present invention, and of the invention shows
Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 shows the structural schematic diagram of the Lumbar Fusion prosthese provided according to embodiments of the present invention；
Fig. 2 shows the explosive views of the Lumbar Fusion prosthese of offer according to embodiments of the present invention；
Fig. 3 shows the structural schematic diagram of the main body in Fig. 1；
Fig. 4 shows the structural schematic diagram of the first fused layer in Fig. 1；
Fig. 5 shows the structural schematic diagram of the second fused layer in Fig. 1；
Fig. 6 shows the structural schematic diagram of the filled layer in Fig. 1；
Fig. 7 shows the structural schematic diagram of the adjusting post in Fig. 1；
Fig. 8 shows the another structural schematic diagram of the Lumbar Fusion prosthese provided according to embodiments of the present invention；
Fig. 9 shows the schematic diagram of the Lumbar Fusion Using prosthesis human body provided according to embodiments of the present invention.
Wherein, the above drawings include the following reference numerals:
10, main body；11, insertion end；12, adjustable side；13, third tooth-shape structure；14, window is placed；15, avoid holes；
20, the first fused layer；21, the first tooth-shape structure；
30, the second fused layer；31, the second tooth-shape structure；
40, filled layer；
50, adjusting post；51, adjustment hole；52, fixing groove.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Below
Description only actually at least one exemplary embodiment be it is illustrative, never as to the present invention and its application or make
Any restrictions.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
As shown in Figures 1 to 9, embodiment according to the present invention provides a kind of Lumbar Fusion prosthese, and the Lumbar Fusion is false
Body includes main body 10, the first fused layer 20, the second fused layer 30 and filled layer 40.Wherein, main body 10 have upper counterface,
Lower counterface and cavity, and cavity runs through upper counterface and lower counterface.First fused layer 20 lid is located at main body
On 10 upper counterface, the lumbar vertebra for keeping the first fused layer 20 adjacent with above Lumbar Fusion prosthese is connect；Second is melted
The lid of layer 30 is closed to be located on the lower counterface of main body 10, the rumpbone that keeps the second fused layer 30 adjacent with below Lumbar Fusion prosthese or
Lumbar vertebrae connection；And filled layer 40 is arranged in the cavity of main body 10, and filled layer 40 is located at the first fused layer 20 and second and melts
It closes between layer 30, can use filled layer 40 and first fused layer 20, the second fused layer 30 and main body 10 are supported.
Using Lumbar Fusion prosthese provided in this embodiment, by the way that based on the setting of Lumbar Fusion prosthese 10, first is melted
Close layer 20, the second fused layer 30 and filled layer 40, after by Lumbar Fusion Using prosthesis human body, using the first fused layer 20 with
Adjacent lumbar vertebra connection above Lumbar Fusion prosthese, to promote the contact of Lumbar Fusion prosthese with top adjacent lumbar vertebrae centrum
Area is connect using the second fused layer 30 rumpbone or lumbar vertebrae adjacent with below Lumbar Fusion prosthese, to promote Lumbar Fusion vacation
The contact area of the body rumpbone adjacent with lower section or lumbar vertebrae, and make filled layer 40 to the first fused layer 20, the second fused layer 30 with
And main body 10 is supported, so that the intensity of Lumbar Fusion prosthese be made to meet requirement.It using the above structure, can be better
Realization Lumbar Fusion prosthese is merged with adjacent bone, and has better support effect, so as to promote the use of user
Experience.
In the present embodiment, main body 10, the first fused layer 20, the second fused layer 30 and filled layer 40 are integrally formed,
It can be specifically made by 3D printing technique.Wherein, which is made of medical metal, can so be guaranteed
Biocompatibility after Lumbar Fusion Using prosthesis human body with human body, the medical metal include but is not limited to titanium or titanium alloy,
Cobalt alloy, stainless steel, tantalum metal and magnesium alloy, in the present embodiment, main body 10 use titanium alloy material, can use main body
10 pairs of adjacent vertebrals carry out good support.Specifically, main body 10 along its length be arcuate structure, main body 10 one of them
Side is the arcuate structure being recessed inwardly, another side is the arcuate structure outwardly protruded.Wherein, main body 10 is along its length
With the insertion end 11 and adjustable side 12 being oppositely arranged, and the size of insertion end 11 gradually becomes on the direction far from adjustable side 12
It is small.When by Lumbar Fusion Using prosthesis human body, first insertion end 11 can be inserted into the gap of two neighboring lumbar vertebrae, then be exchanged
It saves end 12 and applies active force, entire Lumbar Fusion prosthese to be satisfactorily implanted two neighboring using the size characteristics of insertion end 11
In the gap of lumbar vertebrae.
As shown in Figures 3 to 5, the side of the separate main body 10 of the first fused layer 20 is provided with the first tooth-shape structure 21, the
The side of the separate main body 10 of two fused layers 30 is provided with the second tooth-shape structure 31.By in the first fused layer 20 and the second fusion
Tooth-shape structure is arranged simultaneously in layer 30, can increase the frictional force between device and the contact surface of adjacent bone, avoiding device and phase
There is the phenomenon that unexpected sliding in adjacent bone, with good stability in implantation early stage with realization device.In other embodiments,
Tooth-shape structure only can also be set in one of them of the first fused layer 20 and the second fused layer 30.
For the stability of further lifting device, is provided on the upper counterface and lower counterface of main body 10
Three tooth-shape structures 13, and the tooth of the tooth form of the first tooth-shape structure 21, the tooth form of the second tooth-shape structure 31 and third tooth-shape structure 13
Shape is all the same, and tooth form includes but is not limited to triangular structure.In the present embodiment, the first fused layer 20 and the second fused layer 30 are equal
It is provided with multiple rows of tooth-shape structure, accordingly, is provided with multiple rows of third on the upper counterface and lower counterface of main body 10
Tooth-shape structure 13, and the third tooth form knot of multiple rows of first tooth-shape structure 21 of the first fused layer 20 and the upper counterface of main body 10
Structure 13 is correspondingly arranged, the third tooth form knot of the lower counterface of multiple rows of second tooth-shape structure 31 and main body 10 of the second fused layer 30
Structure 13 is correspondingly arranged.Wherein, multiple rows of tooth-shape structure is arranged along the length direction interval of main body 10.
Specifically, be internally provided with placed cavity in filled layer 40, using the placed cavity can be implanted into BMP growth factor and/
Or anti-infectives, in the present embodiment, filled layer 40 is internally provided with two placed cavities, and the size of two placed cavities is specific
For 3*3*3mm.For convenience by BMP growth factor and/or anti-infectives implantation placed cavity, the position of placed cavity is corresponded to,
The placement window 14 being connected to there are two being arranged on the side wall of main body 10 with cavity, and two placement windows are respectively positioned on main body 10
The same side.
Also, blood fortune window is additionally provided in main body 10, and blood fortune window is connected to cavity, transporting window using blood can be with
The attachment environment of good blood fortune supply and soft tissue is provided.In the present embodiment, on the side wall of main body 10 there are two settings
Blood transports window, and two blood fortune windows are respectively positioned on the other side that window 14 is placed in the setting of main body 10.It in other embodiments, can be with
As the case may be, pointedly the position and quantity of placed cavity, placement window 14 and blood fortune window are configured, such as
One placed cavity can be set in filled layer 40, placed cavity is corresponded on the side wall of main body 10, one placement window 14 is set, and
Window is transported in one blood of ipsilateral setting for placing window 14.Window 14 and blood fortune window are placed by opening up in main body 10, is made
Main body 10 forms tower structure, and the I-shaped design of class which uses can be good at the stability for realizing structure
And system rigidity, entity polishing process is integrally used in the outer surface of main body 10.It can be to the first fused layer 20, using main body 10
Two fused layers 30 and filled layer 40 are coated, and realize good structural mechanics stability, are completed to the good of spinal vertebral
Support.
In order to which the position to Lumbar Fusion prosthese more flexible in implantation process is adjusted, in the present embodiment,
Lumbar Fusion prosthese further includes adjusting post 50, and adjusting post 50 is arranged in the adjustable side in cavity and being located at main body 10
12, and adjusting post 50 is connect with main body 10.Specifically, adjusting post 50 is threaded through the first fusion by way of interference fit
In the 20, second fused layer 30 of layer and filled layer 40, and the upper counterface and lower cooperation of the axis of adjusting post 50 and main body 10
End face is vertically arranged.Also, the surface that the correspondence adjusting post 50 of the first fused layer 20 and the second fused layer 30 passes through is not set
Set tooth-shape structure.After by Lumbar Fusion Using prosthesis to human body, it is intracorporal in people main body 10 can be adjusted by adjusting post 50
Placed angle, to reach reasonable implantation position.
Specifically, adjusting post 50 includes adjustment hole 51 and fixing groove 52, wherein adjustment hole 51 is arranged in adjusting post 50
Middle part.Also, avoid holes 15 are additionally provided on the side wall of main body 10, and the corresponding adjustment hole 51 of avoid holes 15 is arranged.As general
After Lumbar Fusion Using prosthesis to human body, it can use tool and be threaded through in adjustment hole 51 by avoid holes 15, by tool
Apply active force, rotates main body 10 along adjusting post 50, the intracorporal placed angle of people in main body 10 to be adjusted, make
The cooperation that Lumbar Fusion prosthese contacts bone is stronger.Wherein, the close of adjusting post 50 is arranged in fixing groove 52
On the end face of upper counterface, and along the radial direction of adjusting post 50 through setting.Adjusting post 50 is being assembled to main body
When 10, active force can be applied to adjusting post 50 by fixing groove 52, to smoothly complete assembly.In the present embodiment, it adjusts vertical
Column 50 can realize the rotational positioning of an angle of 90 degrees degree.
In the present embodiment, the first fused layer 20 and the second fused layer 30 are disposed as class bone trabecula porous structure, use
Above structure, when the first fused layer 20 and the second fused layer 30 are in contact with adjacent vertebral, the first fused layer 20 and second
Good Integrated implant and supporting role may be implemented in fused layer 30 and adjacent vertebral, can mention to the Lumbar Fusion prosthese after implantation
Incipient stability function has been supplied to form the support to upper hypocentrum.Specifically, the hole of the first fused layer 20 and the second fused layer 30
Diameter is arranged between 300 μm to 500 μm.
Specifically, diamond-like network can be set by filled layer 40, to realize the attachment and blood fortune of soft tissue
Formation, so as to provide good nutrient environment for the skeletonization of the first fused layer 20 and the second fused layer 30.Also, pass through
Setting diamond-like network for filled layer 40 can be with the integrally-built loss of weight of realization device, and reduces the bullet of device
Property modulus.
Wherein, the grid aperture of filled layer 40 is arranged between 800 μm to 1000 μm.
In order to further be conducive to bone uptake, it is additionally provided with coating on the surface of Lumbar Fusion prosthese, which includes hydroxyl
Base apatite coating.
Specifically, the processing method of Lumbar Fusion prosthese provided in this embodiment includes: using laser or high-power electron beam
Rapid shaping technique, high temperature sintering, chemical attack, electrochemical deposition etc. technology, other processing methods further include accurate casting
Make, weld, machine cut, electro-discharge machining molding etc..Wherein, hydroxyapatite coating layer then passes through pyrolytic coating or electrochemical deposition
It obtains.
Below with reference to the implantation process of Lumbar Fusion prosthese provided in this embodiment, it is further described:
(1) it is scanned first by the position that CT will be implanted into Lumbar Fusion prosthese to human body, according to the specific feelings of human body
Condition forms the Lumbar Fusion prosthese of more anatomic dimensions, is filled between centrum with completing the Lumbar Fusion prosthese of selection suitable dimension
Gap can so guarantee that surrounding tissue keeps original location status, make the fusion face of Lumbar Fusion prosthese with adjacent vertebral
Physiological joint face good agreement；
(2) insertion end 11 is inserted into the gap of two neighboring lumbar vertebrae, active force then is applied to adjustable side 12, to utilize
Entire Lumbar Fusion prosthese is satisfactorily implanted in the gap of two neighboring lumbar vertebrae by the size characteristics of insertion end 11；
(3) it is threaded through in adjustment hole 51 using tool by avoid holes 15, by applying active force to tool, makes main body 10
It is rotated along adjusting post 50, the intracorporal placed angle of people in main body 10 to be adjusted, makes Lumbar Fusion prosthese and its phase
The cooperation for contacting bone is stronger.
It is further explained below with reference to the function in each region of Lumbar Fusion prosthese provided in this embodiment:
(1) the first fused layer 20 and 30 surface of the second fused layer are provided with tooth-shape structure, device initial stage can be increased
Fixed stability.And the first fused layer 20 and the second fused layer 30 are disposed as class bone trabecula porous structure, Using prosthesis
Will be chimeric with surrounding physiological bone structure after human body and bone fusion be formed to reach steady in a long-term；
(2) set diamond-like network for filled layer 40, be capable of providing it is good be compressed axially rigidity, so as to
To promote filled layer 40 to the support effect of main body 10, the first fused layer 20 and the second fused layer 30.Also, utilize diamond-like
Network can also realize the attachment of soft tissue and the formation of blood fortune, be the skeletonization of the first fused layer 20 and the second fused layer 30
Good nutrient environment is provided；
(3) it can be adjusted by adjusting post 50 after by Lumbar Fusion Using prosthesis to human body by the way that adjusting post 50 is arranged
Main body 10 is saved in the intracorporal placed angle of people, the cooperation for making Lumbar Fusion prosthese contact bone is stronger；
(4) by being internally provided with placed cavity in filled layer 40, using the placed cavity can be implanted into BMP growth factor and/
Or anti-infectives, to realize better postoperative curative effect.
The device provided through this embodiment, has to facilitate and is not easy abjection, small to spinal injury excellent after implantation, implantation
Point, and need to only be implanted into single piece of Lumbar Fusion prosthese and can be realized and have the effect of different function for different regions.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments
It is not limited the scope of the invention up to formula and numerical value.Simultaneously, it should be appreciated that for ease of description, each portion shown in attached drawing
The size divided not is to draw according to actual proportionate relationship.For technology, side known to person of ordinary skill in the relevant
Method and equipment may be not discussed in detail, but in the appropriate case, and the technology, method and apparatus should be considered as authorizing explanation
A part of book.In shown here and discussion all examples, any occurrence should be construed as merely illustratively, and
Not by way of limitation.Therefore, the other examples of exemplary embodiment can have different values.It should also be noted that similar label
Similar terms are indicated in following attached drawing with letter, therefore, once it is defined in a certain Xiang Yi attached drawing, then subsequent attached
It does not need that it is further discussed in figure.
In the description of the present invention, it is to be understood that, the noun of locality such as " front, rear, top, and bottom, left and right ", " it is laterally, vertical,
Vertically, orientation or positional relationship indicated by level " and " top, bottom " etc. is normally based on orientation or position shown in the drawings and closes
System, is merely for convenience of description of the present invention and simplification of the description, in the absence of explanation to the contrary, these nouns of locality do not indicate that
It must have a particular orientation or be constructed and operated in a specific orientation with the device or element for implying signified, therefore cannot manage
Solution is limiting the scope of the invention；The noun of locality " inside and outside " refers to inside and outside the profile relative to each component itself.
For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure
Except different direction in use or operation.For example, being described as if the device in attached drawing is squeezed " in other devices
It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " may include " ... top " and
" in ... lower section " two kinds of orientation.The device can also be positioned with other different modes and (is rotated by 90 ° or in other orientation), and
And respective explanations are made to the opposite description in space used herein above.
In addition, it should be noted that, limiting components using the words such as " first ", " second ", it is only for be convenient for
Corresponding components are distinguished, do not have Stated otherwise such as, there is no particular meanings for above-mentioned word, therefore should not be understood as to this
The limitation of invention protection scope.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (11)
1. a kind of Lumbar Fusion prosthese characterized by comprising
Main body (10), has upper counterface, lower counterface and cavity, and the cavity runs through the upper counterface and institute
State lower counterface；
First fused layer (20), lid are located on the upper counterface of the main body (10)；
Second fused layer (30), lid are located on the lower counterface of the main body (10)；
Filled layer (40) is arranged in the cavity, and the filled layer (40) is located at first fused layer (20) and described the
Between two fused layers (30).
2. Lumbar Fusion prosthese according to claim 1, which is characterized in that the main body (10) is arc along its length
Structure, the main body (10), first fused layer (20), second fused layer (30) and the filled layer (40) are one
Body formed, the main body (10) has the insertion end (11) being oppositely arranged and adjustable side (12), the insertion end along its length
(11) size gradually becomes smaller on the direction far from the adjustable side (12).
3. Lumbar Fusion prosthese according to claim 1, which is characterized in that first fused layer (20) far from described
The side of main body (10) is provided with the separate main body of the first tooth-shape structure (21) and/or second fused layer (30)
(10) side is provided with the second tooth-shape structure (31).
4. Lumbar Fusion prosthese according to claim 3, which is characterized in that the upper counterface of the main body (10) and/
Or third tooth-shape structure (13) are provided on lower counterface, tooth form, second tooth form of first tooth-shape structure (21)
The tooth form of structure (31) and the tooth form of the third tooth-shape structure (13) are all the same.
5. Lumbar Fusion prosthese according to claim 1, which is characterized in that the filled layer (40) has placed cavity, institute
It states to be provided on the side wall of main body (10) and places window (14), the placement window (14) is connected to the cavity, and described puts
Set window (14) corresponding described placed cavity setting.
6. Lumbar Fusion prosthese according to claim 1, which is characterized in that the Lumbar Fusion prosthese further includes adjusting to stand
Column (50), the adjusting post (50) are arranged in the cavity, and the adjusting post (50) connect with the main body (10), institute
Adjusting post (50) are stated for adjusting the placed angle of the main body (10).
7. Lumbar Fusion prosthese according to claim 6, which is characterized in that the adjusting post (50) includes adjustment hole
(51) it is set on the middle part of the adjusting post (50), the main body (10) with fixing groove (52), adjustment hole (51) setting
It is equipped with avoid holes (15), corresponding adjustment hole (51) setting of the avoid holes (15), the fixing groove (52) is arranged described
On the end face of the close upper counterface of adjusting post (50).
8. Lumbar Fusion prosthese according to claim 1, which is characterized in that first fused layer (20) and described second
Fused layer (30) is the aperture of class bone trabecula porous structure, first fused layer (20) and/or second fused layer (30)
Between 300 μm to 500 μm.
9. Lumbar Fusion prosthese according to claim 1, which is characterized in that the filled layer (40) is diamond-like grid
Structure.
10. Lumbar Fusion prosthese according to claim 9, which is characterized in that the grid aperture of the filled layer (40) exists
Between 800 μm to 1000 μm.
11. Lumbar Fusion prosthese according to claim 1, which is characterized in that the surface of the Lumbar Fusion prosthese is arranged
There is coating, the coating includes hydroxyapatite coating layer.
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| CN201910295804.1A CN109925102A (en) | 2019-04-12 | 2019-04-12 | Lumbar Fusion prosthese |
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