CN103494657A - Fusion cage - Google Patents
Fusion cage Download PDFInfo
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- CN103494657A CN103494657A CN201310357114.7A CN201310357114A CN103494657A CN 103494657 A CN103494657 A CN 103494657A CN 201310357114 A CN201310357114 A CN 201310357114A CN 103494657 A CN103494657 A CN 103494657A
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- Prior art keywords
- fusion device
- mesh
- fusion cage
- fusion
- space network
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
Abstract
The invention discloses a fusion cage which is of a loose solid structure composed of a stereoscopic net structure. The stereoscopic net structure forms a plurality of net holes in the interior and the surface of the fusion cage. The loose solid structure in a stereoscopic net shape is adopted in the fusion cage, the fusion cage does not need to be made into a hollow cavity form, and therefore the fusion cage has enough rigidity and supporting face to support the intervertebral stress of the human body. Due to the fact that the supporting face of the fusion cage is large, the complication of collapse is avoided. Meanwhile, the solid fusion cage in the stereoscopic net shape does not need filling materials, the defect that an existing fusion cage needs to be filled with autologous tissues is overcome, the situation that new trauma is caused by acquiring the autologous tissues is avoided, the operation time consumed by an operator for setting autologous tissues is saved, and patients with poor skeletal structures cannot be limited.
Description
Technical field
The present invention relates to field of medical technology, relate in particular to a kind of fusion device for bone surgery.
Background technology
In bone surgery, implant fusion device in order to affected bone is filled to fixedly fusion now, become the technology that current Orthopeadic Surgery is generally applied.In order to be beneficial to the healing of wound, traditional fusion device is ducted body, and it utilizes tissue is filled in cavity to the fusion with inducing self-body surrounding tissue and fusion device, thus the healing of promotion wound.Yet, as the tissue of filling, generally speaking all come from autologously, need to from other autologous tissue's structures of patient, obtain.So, getting of patient organizes district to certainly lead to new wound, easily causes complication.Have again, because needing collator soma, increased operating time and medical treatment cost, be unfavorable for the extensive propelling for the treatment of.In addition, the common not good enough people of skeletal structure, as the child, sclerotin is combed loose person, all should not do autograft, thereby this kind of needs fill the fusion device of inducing tissue and patient's sclerotin is required too high, is unfavorable for generally applying.
Summary of the invention
The invention reside in the defect that overcomes prior art, a kind of fusion device of inducing tissue without filling is provided.
Its technical scheme is as follows:
A kind of fusion device, described fusion device is the loose solid structure that space network forms, described space network forms a plurality of mesh in inside and the surface of fusion device.
Therefore described fusion device adopts solid netted loose solid construction, without the form of making hollow cavity, has enough rigidity and bearing-surface and removes the stressed of each intervertebral in support human body.Owing to merging, the body seating surface is large, has prevented the complication of subsiding.Simultaneously, solid netted solid fusion device is without packing material, overcome the existing defect that needs to fill autologous tissue, avoided being obtained from the new wound that soma causes, also saved the operating time that the operation technique person consumes for these autologous tissues of arrangement, and patient that can be not good enough to skeletal structure causes restriction.Because fusion device of the present invention adopts solid netted solid construction, the mesh that patient's autologous tissue and space network form merges mutually, and can reach the fusion between fusion device and autologous tissue, thereby also can reach the purpose of operation again.Have, the autologous tissue due to fusion device by above-mentioned feature and patient reaches good fusion again, thereby avoids needing to take out the second operation of fusion device, has both reduced the operation cost, has also reduced operation risk.
Further, described space network is irregular space network, and described a plurality of mesh that described space network forms are irregular mesh, include two mesh of mutual perforation in described a plurality of mesh.
Further, described fusion device utilizes xenogenesis bone or bone of the same race to make, and material source is extensive, and can directly utilize the bone trabecula space of xenogenesis bone and bone of the same race to form solid netted solid construction, therefore the cost of drawing materials is low, directly reduces production cost and the operation cost of fusion device.
Further, described fusion device is to be made by one of them kind material of metal material, macromolecular material, biomaterial, utilize the 3D printing technique, can directly above-mentioned material be made to space network, convenient for production simple and direct, and utilize space network formation mesh and autologous tissue to reach fusion.
Further, the aperture of described mesh is less than or equal to 1mm, and fusion device has enough hardness with sufficient contact surface, makes fusion device be enough to play in affected part support, filling effect.
Further, described fusion device has first surface and the second surface relative with first surface, there is respectively projection and depression on described first surface and second surface, increase on the one hand the contact area with the adjacent autologous tissue in affected part, make fusion device contact better fusion with autologous tissue, effectively prevent that on the other hand fusion device from exiting from affected part in operation process.
Further, described fusion device comprises the bar section that is connected head and is connected with head, the second surface that described head has the first surface that is circular arc and is connected with described bar section, be applicable to the department of cerebral surgery Minimally Invasive Surgery, described first surface shape is identical or similar with the profile in human body skull affected part, and described fusion device plays filling effect in the department of cerebral surgery Minimally Invasive Surgery.
Further, the cylindrical shape of described bar section, the cross section diameter of described bar section is less than the overall diameter of described second surface, and it is whole becomes mushroom.
Further, described fusion device is column, and it comprises the first relative end face and the secondth end face, and the upright projection of described the first end face and described the second end face are overlapping, make fusion device can be used in the different parts such as cervical vertebra, vertebra, breastbone.
Further, it is rectangular-shaped or tabular that described fusion device is column or granular or strip or taper or three-dimensional trapezoidal shape or cube.
The accompanying drawing explanation
The schematic perspective view of the fusion device that Fig. 1 is first embodiment of the invention.
The schematic perspective view at another visual angle of fusion device that Fig. 2 is first embodiment of the invention.
The schematic perspective view at the another visual angle of fusion device that Fig. 3 is first embodiment of the invention.
The cutaway view of the fusion device that Fig. 4 is first embodiment of the invention.
The mesh enlarged diagram that Fig. 5 is space network of the present invention and formation thereof.
The enlarged photograph figure of the mesh that Fig. 6 is space network of the present invention and formation thereof.
The schematic perspective view of the fusion device that Fig. 7 is second embodiment of the invention.
The schematic perspective view of the fusion device that Fig. 8 is third embodiment of the invention.
The schematic perspective view at another visual angle of fusion device that Fig. 9 is third embodiment of the invention.
The schematic perspective view of the fusion device that Figure 10 is fourth embodiment of the invention.
The schematic perspective view of the fusion device that Figure 11 is fifth embodiment of the invention.
The schematic perspective view of the fusion device that Figure 12 is sixth embodiment of the invention.
The schematic perspective view of the fusion device that Figure 13 is seventh embodiment of the invention.
The schematic perspective view of the fusion device that Figure 14 is eighth embodiment of the invention.
The schematic perspective view of the fusion device that Figure 15 is ninth embodiment of the invention.
Description of reference numerals:
1, 2, 3, 4, 5, 6, 7, 8, 9, fusion device, 10, space network, 20, 21, 22, 23, mesh, 11, 21, first surface, 12, 22, second surface, 13, the 3rd surface, 14, the 4th surface, 15, the 5th surface, 151, rake, 152, connecting portion, 153, arc sections, 16, the 6th surface, 110, 210, projection, 112, 212, depression, 101, the first clamping part, 102, the second clamping part, 151, the first arc sections, the 152-connecting portion, 153, the second arc sections, 23, side, 231, inner fovea part, 31, head, 32, bar section, 311, first surface, 312, second surface, 313, side, 41, the first end face, 42, the second end face.
The specific embodiment
Below embodiments of the invention are elaborated:
As shown in Fig. 1-6, the fusion device 1 of first embodiment of the invention is a kind of lumbar vertebra spinal fusion device, for the reconstruction of vertebral body.Described fusion device 1 is for implantation into the lumbar vertebra damaged location.The loose solid structure of described fusion device 1 for being formed by space network 10.Described space network 10 forms a plurality of mesh 20.Solid netted loose solid structure that is to say as cellular, spongiform structure.Described space network 10 fills up, is full of inside and the surface of whole fusion device 1, and described mesh is distributed in inside and the surface of described fusion device 1.Described space network 10 is irregular space network 10.Described a plurality of mesh 20 that described space network 10 forms are irregular mesh 20.Described a plurality of mesh 20 staggers mutually, includes two mesh 20 of mutual perforation in described a plurality of mesh 20.The aperture of described mesh 20 is less than or equal to 1mm, for example, the aperture of mesh 21 is 0.2mm, the aperture of mesh 22 is 0.5mm, the aperture of mesh 23 is 0.8mm, makes fusion device 1 have enough rigidity and bearing-surface and removes the stressed to play support, filling effect in affected part of each intervertebral in support human body.Described space network 10 has strengthened the contact area of fusion device 1 with affected part, better induce patient's autologous tissue and the mesh 20 of space network 10 formation mutually to merge, and then absorb, replace former fusion device 1, finally reach the effect of permanent support, fusion.Autologous tissue due to fusion device by above-mentioned feature and patient reaches good fusion, thereby avoids needing to take out the second operation of fusion device, has both reduced the operation cost, has also reduced operation risk.Have again, because described fusion device 1 adopts solid netted loose solid construction, therefore without making ducted body, overcome the existing defect that needs to fill autologous tissue, avoided being obtained from the new wound that soma causes, also saved the operating time that the operation technique person consumes for these autologous tissues of arrangement, and patient that can be not good enough to skeletal structure causes restriction.
Described fusion device 1 utilizes the xenogenesis bone to make.The xenogenesis bone, that is to say the non-human skeletal tissue of similar Os Sus domestica, Os Bovis seu Bubali and so on.Because fusion device 1 is to be made by the xenogenesis bone, material source is extensive, so the cost of drawing materials, and directly reduces the production cost of fusion device 1.Understandably, fusion device 1 also can utilize bone of the same race to make.Xenogenesis bone and bone of the same race have can meet desired comprcssive strength clinically, complete bone structure, has with the immediate elastic modelling quantity of human bone, after fully processing, and can retain the characteristic of good biocompatibility.Natural bone trabecula hole, form space network 10, directly reduces production cost and the operation cost of fusion device.
Understandably, described fusion device 1 also can be mixed by wherein a kind of material or the multiple material of metal material, macromolecular material, biomaterial.Utilize the 3D printing technique, say that above-mentioned material makes Powderedly, construct and be space network 10 by the mode of successively printing, thereby obtain thering is solid netted fusion device 1.The fusion device 1 that utilizes said method to make, utilize the high rigidity of material can meet the clinical practice demand, and its method of making fast is conducive to industrial production, the cost of reduction fusion device 1.The mesh 20 formed by space network 10, the fusion device 1 that realization is made by above-mentioned material and the fusion between autologous tissue are arranged again.
Described fusion device 1 is a solid hexahedron, and it has first surface 11, second surface 12, the 3rd surface 13, the 4th surface 14, the 15 and the 6th surface 16, the 5th surface.Described first surface 11 is relative with described second surface 12, and described the 3rd surface 13 is relative with described the 4th surface 14, and described the 5th surface 15 is relative with described the 6th surface 16.Each surface of described fusion device 1 is for being distributed with the loose rough surface of mesh 20.Described fusion device 1 is roughly symmetric figure, and wherein, the 3rd surface 13 is parallel with the 4th surface 14, and the 5th surface 15 is slightly larger than the 6th surface 16, first surface 11 and the horizontal central plane symmetry of second surface 12 with fusion device 1.Described the 3rd surface 13 with described the 4th surface 14, be and vertical between there is the inclined plane of 0-8 degree angle.The length of fusion device 1, that is to say that the distance on the 5th surface 15 to the 6th surface 16 is between 18-26mm.The width of fusion device 1, that is to say that the distance on the 3rd surface 13 to the 4th surface 14 is between 8-16mm.The height of fusion device 1, that is to say first surface 11 to second surface 12 the distance between 8-12mm.
There are respectively several projections 110 on described first surface 11 and second surface 12 and cave in 112.In the present embodiment, there is respectively the projection 110 of a plurality of continuous distribution and space and cave in 112 on described upper surface 11 and lower surface 12.Described a plurality of protruding 110 first surfaces 11 that make fusion device 1 with depression 112 and second surface 12 are continuous wavy fluctuating.In the present embodiment, described a plurality of protruding 110 make the first surface 11 of fusion device 1 be the sine curve shape with depression 112, make second surface 12 be trapezoidal fluctuating shape.First surface 11 and the joint face of second surface 12 as adjacent two skeletons in lumbar vertebra affected part, they are a plurality of protruding 110 and cave in and 112 increase on the one hand further the contact area of two piece skeletons adjacent with affected part years old, make fusion device 1 contact better fusion with original skeleton, effectively prevent that on the other hand fusion device 1 from exiting from the lumbar vertebra affected part in operation process.
Understandably, described protruding 110 can be also the shapes such as taper, column, and each projection 110 can be same shape, also can be difformity.Described depression 112 can be the hole identical with protruding 110 shapes, can be and projection 110 variform holes can be also the trough formed between adjacent two projections 110.Described protruding 110 with depression 112 also can indentation or other ups and downs shapes.
Described fusion device 1 has a pair of the first clamping part 101 and the second clamping part 102.Described a pair of the first clamping part 101 is respectively the front right-hand member that is positioned at fusion device 1, the breach of rear right-hand member, that is to say and is positioned at the 3rd surface 13 and the intersection on the 6th surface 16 and the 4th surperficial 14 and the intersection on the 6th surface 16.Described a pair of the first clamping part 101 caves in from the 3rd surface 13 towards the direction depression on the 4th surface 14 and from the 4th surface 14 towards the 3rd surface 13 respectively, in the 6th surface 16, forms two breach.The wall that forms described the first clamping part 101 is rectangular-shaped.Described the second clamping part 102 is one to be positioned at the blind hole of the rear end of fusion device 1, and it is the direction perforate towards the 5th surface 15 from the 6th surface 16.In the present embodiment, described the first clamping part 101 does not connect with described the second clamping part 102.In operation process, the medical worker utilizes machinery, by the first clamping part 101 and the second clamping part 102, fusion device 1 is picked up to work such as being fixed, rotating and move.
Described the 5th surface 15 is a continuous surface, and it with in operation process, is inserted into affected part by fusion device 1 with fillet or chamfering better.In the present embodiment, described the 5th surface 15 comprises the first arc sections 151 be connected with first surface 11, and the second arc sections 153 be connected with second surface 12 connects the connecting portion 152 of described the first arc sections 151 and the second arc sections 153.Described connecting portion 152 is a plane, and it is parallel with the 6th surface 16.Described the first arc sections 151 described connecting portion 152 in smoothing junction and first surface 11.Described the second arc sections 153 described connecting portion 152 in smoothing junction and second surface 12.The spur shape as bullet shape also can be made in described the 5th surface 15.
Fig. 4 shows the cutaway view that fusion device 1 cuts from plane a, wherein, and the central horizontal face that plane a is fusion device 1.Because the fusion device 1 in the present invention adopts solid form, thus the section of fusion device 1 except mesh 20, the first clamping part 101 and the second clamping part 102 that space network 10 formation are arranged without all the other cavities.
As shown in Figure 7, the fusion device 2 of second embodiment of the invention is cervical vertebra surgical fusion device, and the difference of the fusion device 2 of the present embodiment and the fusion device 1 of the first embodiment is profile.The side 23 that described fusion device 2 has the second surface 22 that first surface 21, first surface 21 are relative and connects described first surface 21 and second surface 22.Have a plurality of protrudingly 210 on described first surface 21, first surface 21, form depression 212 between described a plurality of protruding 210.Described a plurality of protruding 210 arranged distribution.Each projection 210 is the taper of truncation side.Described protruding 210 with depression, the projection 110 in the 212 and first embodiment, 112 the function of caving in are identical.Described side 23 is a continuous cambered surface, and it forms an inner fovea part 231, makes the shape of the shape of fusion device 2 and human cervical spine similar.
As Figure 8-9, the fusion device 3 of third embodiment of the invention is a kind of department of cerebral surgery fusion device, is applicable to the department of cerebral surgery Minimally Invasive Surgery.The fusion device 3 of the present embodiment is profile with the difference of the fusion device 1,2 of first, second embodiment.The fusion device 3 of the present embodiment is mushroom, and it comprises head 31 and bar section 32.Described head 31 has the first surface 311 that is circular arc, the second surface 312 of annular and the side 313 that connects described first surface 311 and described second surface 312.Described bar section 32 is cylindric, and it is connected with the second surface 312 of head 31.The cross section radius of described bar section 32 is less than the external diameter of described second surface 312.The described body of rod 32 is as the part of inserting affected part, and described head 31 is as the part with the skull fusion.Described first surface 311 shapes are identical or similar with the profile in skull affected part.When described fusion device 3 is placed in the skull affected part, fusion device 3 just fills up the affected part of head capsule, plays good filling and the effect of fusion.
As shown in figure 10, this kind of thoracic surgery fusion device.The difference of the fusion device 4 of the present embodiment and the fusion device of first, second, third embodiment 1,2,3 is profile.The fusion device 4 of the present embodiment is cylindrical shape or the cubic column of fillet slightly.The cross-sectional area of described fusion device 4 is at 10-30mm
2between, height is between 10-50mm.Because described fusion device 4 adopts loose solid structure, it can play good filling and the effect of fusion in thoracic surgery.Described fusion device 4 comprises the first relative end face 41 and the secondth end face 42.The upright projection of described the first end face 41 and described the second end face 42 are overlapping.
Understandably, described fusion device 1 can be other shapes, for example in pelletized form, strip.The fusion device 5 in the 5th embodiment shown in Figure 11 for example again, it is tapered, plays a part to fill to merge.Fusion device 6 in the 6th embodiment as shown in figure 12, it is column.Fusion device 7 in the 7th embodiment as shown in figure 13, it is three-dimensional trapezoidal shape.Fusion device 8 in the 8th embodiment as shown in figure 14, it is cube or rectangular-shaped.Fusion device 9 in the 9th embodiment as shown in figure 15, it is tabular.
The above embodiment has only expressed the specific embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (10)
1. a fusion device is characterized in that: the loose solid structure of described fusion device for consisting of space network, described space network forms a plurality of mesh in inside and the surface of fusion device.
2. fusion device as claimed in claim 1, it is characterized in that: described space network is irregular space network, described a plurality of mesh that described space network forms are irregular mesh, include two mesh of mutual perforation in described a plurality of mesh.
3. fusion device as claimed in claim 1, it is characterized in that: described fusion device utilizes xenogenesis bone or bone of the same race to make.
4. fusion device as claimed in claim 1 is characterized in that: described fusion device is to plant material by one of them of metal material, macromolecular material, biomaterial to make.
5. fusion device as described as claim 3 or 4, it is characterized in that: the aperture of described mesh is less than or equal to 1mm.
6. fusion device as claimed in claim 5, it is characterized in that: described fusion device has first surface and the second surface relative with first surface, has respectively projection and depression on described first surface and second surface.
7. fusion device as claimed in claim 5 is characterized in that: the bar section that described fusion device comprises head and is connected with head, the second surface that described head has the first surface that is circular arc and is connected with described bar section.
8. fusion device as claimed in claim 7 is characterized in that: the cylindrical shape of described bar section, the cross section diameter of described bar section is less than the overall diameter of described second surface.
9. fusion device as claimed in claim 5, it is characterized in that: described fusion device comprises the first relative end face and the second end face, the upright projection of described the first end face and described the second end face are overlapping.
10. fusion device as claimed in claim 1 is characterized in that: it is rectangular-shaped or tabular that described fusion device is column or granular or strip or taper or three-dimensional trapezoidal shape or cube.
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| CN201310357114.7A CN103494657A (en) | 2013-08-15 | 2013-08-15 | Fusion cage |
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| CN103720527A (en) * | 2014-01-26 | 2014-04-16 | 北京大学第三医院 | Joint fusion cage |
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| CN104758095A (en) * | 2015-04-16 | 2015-07-08 | 倪文飞 | Oblique interbody fusion cage |
| CN107811731A (en) * | 2016-09-13 | 2018-03-20 | 华沙整形外科股份有限公司 | Intercentrum spinal fusion device |
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| CN104000674A (en) * | 2014-06-10 | 2014-08-27 | 张衣北 | Flexible trabecular bone structure interbody fusion cage |
| CN104116552A (en) * | 2014-08-04 | 2014-10-29 | 上海三友医疗器械有限公司 | Intervertebral fusion device and installation tool thereof |
| CN104116552B (en) * | 2014-08-04 | 2017-01-25 | 上海三友医疗器械股份有限公司 | Intervertebral fusion device and installation tool thereof |
| CN104758095A (en) * | 2015-04-16 | 2015-07-08 | 倪文飞 | Oblique interbody fusion cage |
| CN104758095B (en) * | 2015-04-16 | 2016-08-31 | 倪文飞 | A kind of oblique Invasive lumbar fusion device |
| CN107811731A (en) * | 2016-09-13 | 2018-03-20 | 华沙整形外科股份有限公司 | Intercentrum spinal fusion device |
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Application publication date: 20140108 |