CN208710172U - Articulatio sacroiliaca fusion device - Google Patents
Articulatio sacroiliaca fusion device Download PDFInfo
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- CN208710172U CN208710172U CN201721170013.9U CN201721170013U CN208710172U CN 208710172 U CN208710172 U CN 208710172U CN 201721170013 U CN201721170013 U CN 201721170013U CN 208710172 U CN208710172 U CN 208710172U
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- articulatio sacroiliaca
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Abstract
The utility model provides a kind of articulatio sacroiliaca fusion device, comprising: fusion block, fusion block are trabecular bone structure, and fusion block is column, to merge block when being implanted into articulatio sacroiliaca, the cartilaginous tissue of articulatio sacroiliaca are enable to grow into trabecular bone structure.To after articulatio sacroiliaca fusion device is implanted into articulatio sacroiliaca, osteocyte can creep along the micropore of trabecular bone structure with fine vascular and grow into during Rehabilitation, the embedded articulatio sacroiliaca emerging system of active fusion is ultimately formed, and then there is preferable stability.Solve the problems, such as that articulatio sacroiliaca fusion device in the prior art is difficult to merge with articulatio sacroiliaca.
Description
Technical field
The utility model relates to area of medical devices, in particular to a kind of articulatio sacroiliaca fusion device.
Background technique
Articulatio sacroiliaca is the joint engaged by ligament between the rumpbone and ilium of pelvis, with articular cartilage and meeting
The chain irregular arthrodia swelled and be recessed of two bones is generated, rumpbone supports vertebra and again by the ilium branch on every side
Support.
Pain relevant to articulatio sacroiliaca can by the traumatic fractue dislocation of pelvis, degenerative arthritis, sacro-iliitis,
Other degenerative pathologies of osteitis condensans ilii or articulatio sacroiliaca cause.Currently, the surgical treatment of these symptom advocated the most is
Articulatio sacroiliaca fusion.
Articulatio sacroiliaca fusion can be reached by several different existing methods, mainly cover preceding path method, posterior approach and side
Path method, with or without percutaneous screw or the fixation of other types of implantation material.Existing articulatio sacroiliaca fusion device is being performed the operation
It is difficult in the process fixed and is difficult to merge with articulatio sacroiliaca after operation, patient articular is caused to restore slower and fused pass
It is bad to save stability.
Utility model content
The main purpose of the utility model is to provide a kind of articulatio sacroiliaca fusion devices, to solve sacrum ilium in the prior art
Joint fusion cage is difficult to the problem of merging with articulatio sacroiliaca.
To achieve the goals above, one aspect according to the present utility model provides a kind of articulatio sacroiliaca fusion device, packet
Include: fusion block, fusion block are trabecular bone structure, and fusion block is column, to make sacrum ilium when merging in block implantation articulatio sacroiliaca
The cartilaginous tissue in joint can grow into trabecular bone structure.
Further, trabecular bone structure has mesh, and the aperture of mesh is 0.1mm to 2mm.
Further, the aperture of mesh is 1mm.
Further, fusion block includes: main part；The front end of main part is arranged in end head, plants for guide main body portion
Enter in articulatio sacroiliaca.
Further, main part is triangular prism.
Further, every rib of main part has arc transiting surface.
Further, end head is conical head.
Further, merge the surface of block is at least partly coated with hydroxyapatite coating layer.
Further, fusion block is fabricated using one of following metal: titanium, titanium alloy, cobalt alloy, stainless steel,
Tantalum metal and magnesium alloy.
Further, fusion block is fabricated in a manner of 3D printing.
Other side according to the present utility model provides a kind of implantation side for above-mentioned articulatio sacroiliaca fusion device
Method, comprising the following steps: determine fusion across the default incision path of the soft tissue of articulatio sacroiliaca；It will according to default incision path
The fusion block of fusion device is inserted into articulatio sacroiliaca.
Using the articulatio sacroiliaca fusion device of technical solutions of the utility model, comprising: fusion block, fusion block are bone trabecula knot
Structure, fusion block are column, to merge block when being implanted into articulatio sacroiliaca, the cartilaginous tissue of articulatio sacroiliaca are enable to grow to the marrow
Trabecularism.Thus after articulatio sacroiliaca fusion device is implanted into articulatio sacroiliaca, osteocyte and fine vascular meeting during Rehabilitation
It creeps and grows into along the micropore of trabecular bone structure, ultimately form the embedded articulatio sacroiliaca emerging system of active fusion, into
And there is preferable stability.Solve the problems, such as that articulatio sacroiliaca fusion device in the prior art is difficult to merge with articulatio sacroiliaca.
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.
In the accompanying drawings:
Fig. 1 is according to optionally a kind of structural schematic diagram of articulatio sacroiliaca fusion device of the utility model embodiment；
Fig. 2 is the enlarged structure schematic diagram in Fig. 1 at A；
Fig. 3 is according to optionally a kind of stereo profile structural schematic diagram of articulatio sacroiliaca fusion device of the utility model embodiment；
Fig. 4 is according to optionally a kind of cross-sectional profile structural representation of articulatio sacroiliaca fusion device of the utility model embodiment
Figure；
Fig. 5 is the structural schematic diagram of the articulatio sacroiliaca of human body；And
Fig. 6 shows according to optionally a kind of articulatio sacroiliaca fusion device of the utility model embodiment in the implantation process of articulatio sacroiliaca
It is intended to.
Wherein, the above drawings include the following reference numerals:
10, block is merged；11, main part；12, end head；20, rumpbone, 30, ilium；40, articulatio sacroiliaca.
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.
According to the articulatio sacroiliaca fusion device of the utility model embodiment, as shown in Figure 1, comprising: fusion block 10 merges block 10
For trabecular bone structure, fusion block 10 is column, to make the cartilage group of articulatio sacroiliaca when merging in the implantation articulatio sacroiliaca of block 10
Trabecular bone structure can be grown by knitting.
Using the articulatio sacroiliaca fusion device of technical solutions of the utility model, comprising: fusion block 10, fusion block 10 are bone trabecula
Structure, fusion block 10 are column, to merge block 10 when being implanted into articulatio sacroiliaca, enable the cartilaginous tissue of articulatio sacroiliaca
Grow into trabecular bone structure.To articulatio sacroiliaca fusion device be implanted into articulatio sacroiliaca after, during Rehabilitation osteocyte with it is fine
Blood vessel can creep along the micropore of trabecular bone structure and grow into, and ultimately form active fusion embedded articulatio sacroiliaca fusion system
System, and then there is preferable stability.Solve what articulatio sacroiliaca fusion device in the prior art was difficult to merge with articulatio sacroiliaca
Problem.
When it is implemented, further, as depicted in figs. 1 and 2, trabecular bone structure has mesh, and the aperture of mesh is
0.1mm to 2mm.After merging the implantation articulatio sacroiliaca of block 10, the osteocyte and fine vascular of patient can be along the net of trabecular bone structure
Hole, which is creeped, to be grown into, to form stable emerging system.Optionally, the aperture of mesh is 1mm.
According to the position of implantation articulatio sacroiliaca, the contour structures to fusion block 10 is needed to carry out special design, specifically,
As shown in figure 3, fusion block 10 includes: main part 11 and end head 12, the front end of main part 11 is arranged in end head 12, merges block
10 when being implanted into articulatio sacroiliaca, and end head 12 plays the role of guide main body portion 11 and is implanted into articulatio sacroiliaca.
Specifically, as shown in Figure 3 and Figure 4, main part 11 is triangular prism, has arc-shaped transition on the every rib of main part 11
Face, the i.e. each angle in the cross section of main part 11 are fillet.Main part 11, which is set as triangular prism shaped, to be implanted into sacrum in fusion block 10
It effectively prevent fusion block 10 axially to rotate behind ilium joint around it.End head 12 is conical head, can be implanted into sacrum ilium in fusion block 10
When joint, it is inserted into the implant holes of articulatio sacroiliaca convenient for fusion block 10.
In order to further promote growing into for the cartilaginous tissue in articulatio sacroiliaca, merge the surface of block 10 at least partly or entirely
Hydroxyapatite coating layer is coated on portion surface, hydroxyapatite coating layer has the function of induced cell growth, to promote soft
As organized to grow into the trabecular bone structure in fusion block 10.
In specific manufacture, fusion block 10 is fabricated using one of following metal: titanium, titanium alloy, cobalt alloy, no
Become rusty steel, tantalum metal and magnesium alloy.In order to be flexibly adapted to the required structure size of different patients, block 10 is merged with 3D
The mode of printing is fabricated.
The ankle joint fusion cage of the present embodiment uses laser or high-power electron beam rapid shaping technique, high temperature sintering, change
Learning burn into electrochemical deposition etc. technology, other processing methods further includes hot investment casting, welding, machine cut, electro-discharge machining
Molding etc.；Hydroxyapatite coating layer then passes through pyrolytic coating or electrochemical deposition obtains.
The specific manufacturing method of the ankle joint fusion cage of the present embodiment is as follows:
1) three-dimensional data model of the ankle joint fusion cage of design-build the present embodiment in a computer；
2) three-dimensional data model is layered using professional software, to obtain a series of outline data of monolayer slices；
3) outline data of above-mentioned serial synusia is inputted to high-power electron beam rapid forming equipment；
4) layer high phase when being layered with aforementioned three-dimensional data model is laid in high-power electron beam rapid forming equipment processing cabin
Answer the metal powder of thickness；
5) metal powder is scanned by computer control high-power electron beam and is selectively melted；
6) aforementioned powder, the scanning fusing step of being laid with is repeated so that each layer is selected the mutual clinkering of material of fusing at whole
Body；
7) removing the powder not melted after the melting process of the whole model layers of completion can be obtained required shape and structure
Ankle joint fusion cage.
Another embodiment according to the present utility model provides a kind of implantation side for above-mentioned articulatio sacroiliaca fusion device
Method, comprising the following steps: determine fusion across the default incision path of the soft tissue of articulatio sacroiliaca；It will according to default incision path
The fusion block 10 of fusion device is inserted into articulatio sacroiliaca.
As shown in figure 5, mankind's pelvic girdle is by by the rumpbone 20 of three relatively-stationary articulations, coccyx and and two pieces of hips
Bone (being merged by ilium 30, ischium and pubis) is formed.Rumpbone 20 is connect in articulatio sacroiliaca 40 with two hipbones, and sacrum ilium closes
The function of section 40 is the power from spine to be transmitted to lower limb, and vice versa.The fusion of articulatio sacroiliaca 40 is typically considered to
It is for degenerative articulatio sacroiliaca 40 to be scorching, inflammatory articulatio sacroiliaca 40 is scorching, iatrogenic articulatio sacroiliaca 40 is unstable, 30 compactness of ilium
Osteitis or the surgical operation therapy of the traumatic fracture of pelvis dislocation.Currently, screw and steel plate joint screw are used for sacrum ilium and melt
Close, cartilage must by from articulatio sacroiliaca 40 " synovial joint " part remove, this need big notch with approach it is impaired, partly
Dislocation, dislocation, fracture or degenerative joint.
The present embodiment be implanted into and articulatio sacroiliaca 40 is fixed using 40 fusion device of articulatio sacroiliaca, as shown in fig. 6,
The specific method is as follows for it: selecting suitable dimension fusion device during operation to be implanted into, at least one fusion device passes through soft tissue
In minimally-invasive incision path and be inserted into articulatio sacroiliaca 40, minimally-invasive incision path size by approximatively
Control is or the maximum outside diameter of about fusion device to enter ilium 30 with the incision path of minimally-invasive, passes through articulatio sacroiliaca 40
And enter rumpbone 20.Fusion device is inserted in the articulatio sacroiliaca 40 between ilium 30 and rumpbone 20 by cutting path
Position to merge articulatio sacroiliaca 40, and prepares, the removing of cartilage or at articulatio sacroiliaca 40 or attached without invasive joint
Close scraping.Similar cancellous bone structure and ilium 30 and rumpbone possessed by the 3D metal trabecular bone structure used as fusion device
20 embedded combinations, osteocyte and fine vascular are creeped length along the micropore of 3D metal trabecular bone structure during Rehabilitation
Enter, ultimately forms embedded 40 emerging system of articulatio sacroiliaca of active fusion.
It can be seen from the above description that the above embodiments of the utility model achieve the following technical effects:
1, the articulatio sacroiliaca fusion device of the utility model embodiment includes the 3D metal bone trabecula knot for being suitable for articulatio sacroiliaca
There is the appearance profile of similar cone cell to design for structure, the 3D metal bone trabecula articulatio sacroiliaca fusion device, have similar human body spongiosa
The 3D metal trabecular bone structure of bone, there are many dimensions is available for exterior contour；
2, the articulatio sacroiliaca fusion device of the utility model embodiment, is selected appropriate specification as needed by doctor when in use
Fusion block 10 implantation need to merge articulatio sacroiliaca position after, with ilium and the embedded combination of rumpbone to form incipient stability, art
Afterwards when convalescence around sclerotin and 3D metal trabecular bone structure fusion growth it is integral after can to form one relatively stable and have
There is the support construction of bioactivity, while this support construction can also cause the stimulation transported to Peripheral blood to promote damaged cartilage
It repairs；
3, the articulatio sacroiliaca fusion device of the utility model embodiment, surface is all or part has hydroxyapatite coat
Layer, the hydroxyapatite coating layer have the function of induction bone cell growth.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of articulatio sacroiliaca fusion device characterized by comprising
It merges block (10), the fusion block (10) is trabecular bone structure, and the fusion block (10) is column, in the fusion
When block (10) is implanted into articulatio sacroiliaca, the cartilaginous tissue of the articulatio sacroiliaca is enable to grow into the trabecular bone structure.
2. articulatio sacroiliaca fusion device according to claim 1, which is characterized in that the trabecular bone structure has mesh, institute
The aperture for stating mesh is 0.1mm to 2mm.
3. articulatio sacroiliaca fusion device according to claim 2, which is characterized in that the aperture of the mesh is 1mm.
4. articulatio sacroiliaca fusion device according to claim 1, which is characterized in that the fusion block (10) includes:
Main part (11)；
End head (12), setting is in the front end of the main part (11), for guiding the main part (11) to be implanted into the sacrum ilium
It is intra-articular.
5. articulatio sacroiliaca fusion device according to claim 4, which is characterized in that the main part (11) is triangular prism.
6. articulatio sacroiliaca fusion device according to claim 5, which is characterized in that every rib of the main part (11) all has
Arc transiting surface.
7. articulatio sacroiliaca fusion device according to claim 4, which is characterized in that the end head (12) is conical head.
8. articulatio sacroiliaca fusion device according to claim 1, which is characterized in that the surface of fusion block (10) is at least
It is partially coated with hydroxyapatite coating layer.
9. articulatio sacroiliaca fusion device according to claim 1, which is characterized in that the fusion block (10) uses following metal
One of them is fabricated:
Titanium, titanium alloy, cobalt alloy, stainless steel, tantalum metal and magnesium alloy.
10. articulatio sacroiliaca fusion device according to claim 9, which is characterized in that the fusion block (10) is with 3D printing
Mode is fabricated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721170013.9U CN208710172U (en) | 2017-09-12 | 2017-09-12 | Articulatio sacroiliaca fusion device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721170013.9U CN208710172U (en) | 2017-09-12 | 2017-09-12 | Articulatio sacroiliaca fusion device |
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| CN208710172U true CN208710172U (en) | 2019-04-09 |
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| CN201721170013.9U Active CN208710172U (en) | 2017-09-12 | 2017-09-12 | Articulatio sacroiliaca fusion device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107510521A (en) * | 2017-09-12 | 2017-12-26 | 北京爱康宜诚医疗器材有限公司 | Articulatio sacroiliaca fusion device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107510521A (en) * | 2017-09-12 | 2017-12-26 | 北京爱康宜诚医疗器材有限公司 | Articulatio sacroiliaca fusion device |
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