CN105997309B - A kind of bionical anti-dislocation goat lumbar vertebrae junctional complex - Google Patents
A kind of bionical anti-dislocation goat lumbar vertebrae junctional complex Download PDFInfo
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- CN105997309B CN105997309B CN201610285489.0A CN201610285489A CN105997309B CN 105997309 B CN105997309 B CN 105997309B CN 201610285489 A CN201610285489 A CN 201610285489A CN 105997309 B CN105997309 B CN 105997309B
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- 241000283707 Capra Species 0.000 title claims abstract description 45
- 239000007787 solid Substances 0.000 claims abstract description 38
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 10
- 229910052588 hydroxylapatite Inorganic materials 0.000 claims abstract description 7
- 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 abstract description 7
- 239000011247 coating layer Substances 0.000 claims abstract description 6
- 238000012545 processing Methods 0.000 claims description 13
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 2
- 241001653121 Glenoides Species 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 10
- 230000002980 postoperative effect Effects 0.000 abstract description 8
- 238000005422 blasting Methods 0.000 abstract description 3
- 230000006870 function Effects 0.000 description 11
- 210000001519 tissue Anatomy 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 238000002513 implantation Methods 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000004927 fusion Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000007659 motor function Effects 0.000 description 2
- 235000001968 nicotinic acid Nutrition 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 206010014144 Ectopia cordis Diseases 0.000 description 1
- 241000124008 Mammalia Species 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 208000007103 Spondylolisthesis Diseases 0.000 description 1
- 206010044565 Tremor Diseases 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 210000003484 anatomy Anatomy 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000002224 dissection Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000013210 evaluation model Methods 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 210000004705 lumbosacral region Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000035479 physiological effects, processes and functions Effects 0.000 description 1
- 230000035790 physiological processes and functions Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000002271 resection Methods 0.000 description 1
- 108010048734 sclerotin Proteins 0.000 description 1
- 206010039722 scoliosis Diseases 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 230000036262 stenosis Effects 0.000 description 1
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- 239000004575 stone Substances 0.000 description 1
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- 201000008827 tuberculosis Diseases 0.000 description 1
Classifications
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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
- A61F2/442—Intervertebral or spinal discs, e.g. resilient
-
- 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
- A61F2/442—Intervertebral or spinal discs, e.g. resilient
- A61F2002/4445—Means for culturing intervertebral disc tissue
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Neurology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
The invention discloses a kind of bionical anti-dislocation goat lumbar vertebrae junctional complex, including centrum component, disc components.Centrum component is made of the K font solids of class goat lumbar vertebrae form, is hollowed out inside solid, and side is equipped with circular groove and rectangle through slot, and upper and lower ends face is equipped with annular groove, and groove inner wall is more than half sphere structure.Disc components include bottom plate, arc side plate and cylindrical protrusion, and arc side plate is equipped with screw hole, and cylindrical protrusion end is the nearly hemisphere shell structure with two arc-shaped protrusions.Nearly hemisphere shell structure is engaged composition cup-and-ball joint with more than half sphere structure, and articular surface is processed by shot blasting, has hydroxyapatite coating layer with bone face contact position in complex.The present invention can not only substitute the centrum taken down in art and neighbouring interverbebral disc, and remain the rotation of interverbebral disc, bend and stretch function, socket joint arrangement is equipped with anti-drop device, both ensure that postoperative stability, the activity of lumbar vertebrae is remained again, closer to goat physiological status.
Description
Technical field
The invention belongs to medical prosthesis manufacturing technology field, more particularly to goat lumbar vertebra and adjacent discs resection
Prosthese transplanting is carried out afterwards, and can retain the bionical anti-dislocation goat lumbar vertebrae junctional complex of lumbar vertebrae movable function.
Background technology
Goat belongs to Mammalia, generally there is 6~7 lumbar vertebras, and compared with human body lumbar vertebrae, its centrum is longer, but coronal
Footpath is smaller with sagittal diameter, and it is in class " K " character form structure that side, which is seen, is connected between each centrum also through interverbebral disc, so as to ensure that
The rotation of centrum, the motor function such as bend and stretch.Although goat can not equally walk upright with the mankind, have scholar study find because
The force-bearing situation of its lumbar vertebra of the effect of paravertebral muscles is similar to human body lumbar vertebrae, therefore the exploitation of many spinal prostheses is ground at present
Study carefully mostly to test by goat inside and outside before clinic is stepped into and carry out safety evaluation.
Tuberculosis of lumbar spine, tumour, old fracture often result in the severe complications such as scoliosis, spinal compression, are serious prestige
Coerce a kind of disease of health.At present, the postoperative row titanium cage bone grafting fusion joint of focal cleaning is usually taken for above-mentioned illness
Rod internal fixation treatment is followed closely, it is widely used by spinal surgeons because the art formula can obtain at once and long-time stability.But should
Operation is general at least to merge three neighbouring centrums, is fused centrum and loses normal movable function, causes non-Fusion levels should
Power concentrate and scope of activities increase, can cause for a long time adjacent discs regression, Secondary cases spinal canal stenosis, zygapophysial joint regression,
The severe complications such as acquired spondylolisthesis, shakiness.In addition, there is scholar's long term follow-up to find to carry out the patient of titanium cage bone grafting fusion
There may be complication such as titanium cage sedimentations, serious patient needs operative treatment again.To overcome drawbacks described above, artificial vertebral body and
The research of artificial intervertebral disk has been a concern, and has had made great progress at present, but still suffers from and be difficult to preservation spinal physiology
Function causes the complication such as unstable spine.
Artificial vertebral body and intervertebral disc system are put forth effort on first to solve the professors such as above-mentioned problem, domestic He Xijing, Lei Wei
Research, has achieved gratifying achievement, the artificial vertebral body and intervertebral of bionical atlas and axis prosthese and Cervical vertebra in terms of cervical vertebra at present
Disk complex achieves satisfied effect in goat in vivo and in vitro.But because lumbar vertebrae anatomical structure and physiological function are answered
Miscellaneous, the artificial vertebral body and interverbebral disc complex of cervical vertebra are dfficult to apply to lumbar vertebrae.Lumbar vertebrae complex must meet following three points：1. protect
Card implantation posterior spinal at once and long-time stability.2. retain the motor function of neighbouring centrum.3. meet the load-bearing of natural spine
Function.But artificial prosthesis, the artificial vertebral body of artificial intervertebral disk and Cervical vertebra and intervertebral disc system are difficult at present.For solution
Certainly this problem, applicant design artificial lumbar vertebrae and interverbebral disc junctional complex, to assess its security, need in row goat body
Outer research, but because the dissection of goat lumbar vertebrae and the difference of human body, the junctional complex cannot be used directly for goat, therefore according to goat
Lumbar vertebrae anatomical features designs a kind of bionical anticreep goat lumbar vertebrae complex, consults domestic and foreign literature, this design still belongs to the first.
The content of the invention
It is an object of the invention to fully draw the advantage of current artificial intervertebral disk and artificial vertebral body, learn from other's strong points to offset one's weaknesses and comprehensive
The anatomical features of goat lumbar vertebrae provides a kind of bionical anti-dislocation goat lumbar vertebrae junctional complex.
To reach above-mentioned purpose, present invention employs following technical scheme：
The goat lumbar vertebrae junctional complex includes centrum component and the disc components for being arranged at centrum component both ends, institute
Stating centrum component includes K font solids, and the disc components include the soleplate and side view with lumbar vertebra respectively
Corresponding bottom plate and arc side plate, the arc side plate are arranged on the bottom plate, bottom plate and the K words of the disc components
It is connected between the correspondence side end face of shape solid by cup-and-ball joint.
The line segment that the edge of the bottom plate is connected by oval segmental arc and with the both ends of the ellipse segmental arc forms, the ellipse
The round and smooth processing in the junction of segmental arc and line segment, the ellipse segmental arc are set with the elliptical long axial symmetry of correspondence, the arc side plate
In in the oval segmental arc of the bottom edge, the arc side plate slopes inwardly and is in 60~70 degree of angles with the bottom plate, institute
State and screw hole is provided with arc side plate.
Described two screw holes are not in same level.
It is provided with coniform tooth on the bottom plate to dash forward and cylindrical protrusion, coniform tooth is dashed forward is located at institute with the arc side plate
The same side surface of bottom plate is stated, coniform tooth nosing ellipse is spaced apart on the bottom plate, and cylindrical protrusion is positioned at described
On another side surface of bottom plate, the center line of cylindrical protrusion is overlapped with the base plate plane center.
The side of the K fonts solid includes being connected along the rectangle plane of coronal-plane extension and with the rectangle plane
Saddle curved surface, be provided with cavity in the K fonts solid, several circles be provided with the side of the K fonts solid
Groove and the rectangle through slot connected with the cavity, opening is provided with two end faces of the K fonts solid as circle
Groove, be provided with for the sphere as cup-and-ball joint ball and socket joint in the groove, stayed between the sphere and the groove
There is gap.
The circular groove is randomly distributed on the side of the K fonts solid, and the rectangle through slot is respectively along sagittal plane
And the traveling of coronal-plane direction and be symmetrically distributed on the K fonts solid on by-level face, the sphere is higher by institute
State K font solids and correspond to side end face, be provided with the gap with sphere cooperation for being used as cup-and-ball joint joint
The spherical shell of nest, the spherical shell are connected with the cylindrical protrusion being arranged on the bottom plate.
Two arc-shaped protrusions are provided with the edge of opening of the spherical shell, described two arc-shaped protrusions positions are opposite, and
It is symmetrical on median sagittal plane, be provided with two notches on the wall of the groove, two gap positions it is opposite and on
Coronal-plane is symmetrical, and the outside wall surface of two arc-shaped protrusions is smaller than or equal to the distance between described two notches,
And the spacing is more than the diameter at the slot opening.
The centrum component and disc components are used and are integrally formed.
The goat lumbar vertebrae junctional complex uses medical titanium alloy material, the side of the centrum component and intervertebral pan portion
The surface directly contacted with bone face on part is both provided with hydroxyapatite coating layer.
The articular surface of the cup-and-ball joint uses polishing treatment.
Beneficial effects of the present invention are embodied in：
Bionical anti-dislocation goat lumbar vertebrae junctional complex of the present invention has taken into full account the anatomical features of goat lumbar vertebrae, vertebra
Body component uses K font solids, and the bottom plate and arc side plate on disc components are combined closely with neighbouring centrum, are effectively reduced
The stress concentration of contact surface, meets the weight-bearing function of normal lumbar vertebrae, because of the presence of cup-and-ball joint, remains the rotation of interverbebral disc
Turn, bend and stretch function, be more nearly physiological status.The present invention can be used for the security of artificial lumbar vertebrae and interverbebral disc junctional complex to comment
Estimate.
The further technique effect that the present invention obtains is as follows：
1st, activity centre is located exactly at intervertenral space center by the cup-and-ball joint of Ti alloy casting, avoid because of activity
Middle ectopia cordis may caused by potential complication, and remain the rotation of centrum, lateral bending, anteflexion, dorsiflexion function, be more nearly
Physiological status.The present invention can substitute the centrum taken down in goat lumbar surgery and neighbouring interverbebral disc, and cup-and-ball joint knot
Structure is equipped with anti-drop device, not only ensure that postoperative stability, but also remains the activity of lumbar vertebrae, closer to goat on bionics
Physiological status.
2nd, the shape of the bottom plate of disc components of the present invention is similar with goat lumbar vertebrae soleplate front shape, is set on bottom plate
There is coniform tooth to dash forward, bottom plate is combined with soleplate even closer, firm.Arc side plate is fitted closely with centrum side, is increased
Contact area, effectively avoids stress concentration, and the cylindrical protrusion on bottom plate can be born because flexion and extension produces well
Cross shear, the generation of adverse events such as avoid deforming, fracture.
3rd, centrum component side of the present invention is equipped with the small cylindrical tank of random distribution, attachment and remaining beneficial to surrounding tissue
Sclerotin is grown into, and more implantation bone can be accommodated using the cavity inside K font solids and rectangle through slot, so that more sharp
Merged in surrounding tissue, ensure that postoperative long-term stability.
4th, two sides, the polished processing of spherome surface and groove outer wall face inside and outside spherical shell of the present invention, it is effective to reduce
There are a hydroxyapatite coating layer in the friction of articular surface, the side of disc components and bone face contact position and centrum component, more
Add and merged beneficial to surrounding tissue, ensure that activity and stability.
5th, arc side plate of the present invention is equipped with two screw holes not in same level, passes through the spiral shell of different directions
Nail implantation, arc side plate is firmly fixed to close on centrum, reduces the risk for loosening abjection.
Brief description of the drawings
Fig. 1 is the front view of the present invention；
Fig. 2 is the rearview of the present invention；
Fig. 3 is the side view of the present invention；
Fig. 4 is the bottom view of the present invention；
Fig. 5 is the sagittal plane sectional view of the present invention；
Fig. 6 is the front view of centrum component；
Fig. 7 is the sagittal plane sectional view of centrum component；
Fig. 8 is the isometric views of centrum component；
Fig. 9 is the bottom view of centrum component；
Figure 10 is the rearview of disc components；
Figure 11, Figure 12 are each parameter schematic diagram of centrum component；
Figure 13, Figure 14 are each parameter schematic diagram of disc components；
In figure：1 is K font solids, and 2 be bottom plate, and 3 be arc side plate, and 4 be cup-and-ball joint, and 6 be oval segmental arc, and 7 be line
Section, 8 be round and smooth processing, and 9 be screw hole, and 10 dash forward for coniform tooth, and 11 be cylindrical protrusion, and 12 be cavity, and 13 be circular groove, and 14 be square
Shape through slot, 15 be end face, and 16 be annular groove, and 17 be more than half sphere structure, and 18 be notch, and 19 be spherical shell, and 20 dash forward for arc
Rise, 21 be annular groove in the opening of K font solids end face, and 22 be screw.
Embodiment
Elaborate with reference to the accompanying drawings and examples to the present invention.
Referring to Fig. 1~Figure 10, bionical anti-dislocation goat lumbar vertebrae junctional complex of the present invention, including centrum component, vertebra
Between disk component and screw 22.
Centrum component is made of the K fonts solid 1 of class goat lumbar vertebrae form, and K fonts solid 1 is internally formed cavity
12, side is equipped with the small cylindrical tank 13 of random distribution, be open opposite rectangle through slot 14 and edge along two of sagittal plane traveling
The opposite rectangle through slot 14 of two of coronal-plane traveling openings, rectangle through slot 14 are in along 1 by-level face of K fonts solid
Symmetrical, 1 upper and lower ends face 15 of K fonts solid is equipped with annular groove 16, and 16 inner wall of annular groove is more than half sphere structure
17, more than half 17 top of sphere structure is front and rear on 16 outer wall of annular groove to be equipped with above K font solids end face 15
Two notches 18 symmetrical on coronal-plane.
Disc components include bottom plate 2 corresponding with the soleplate shape of lumbar vertebra and the side view with lumbar vertebra
Corresponding arc side plate 3, the edge 5 of the bottom plate 2 is by oval segmental arc 6 (radian is 180 degree) and two with the ellipse segmental arc
The line segment 7 of end connection forms, and round and smooth processing is carried out at endpoint, oval segmental arc 6 is with the elliptical long axial symmetry of correspondence, arc side plate 3
It is arranged in the oval segmental arc at 2 edge of bottom plate, the development length of arc side plate 3 is less than or equal to a quarter ellipse, the bottom plate 2
On be provided with coniform tooth and dash forward 10 and cylindrical protrusion 11, coniform tooth is dashed forward the 10 the same side tables for being located at bottom plate 2 with arc side plate 3
Face, coniform tooth is dashed forward 10 to be evenly spaced on bottom plate 2 along ellipse, and cylindrical protrusion 11 is located at bottom plate 2 and deviates from neighbouring waist
On one side surface of vertebral endplate, its center line is overlapped with 2 planar central of bottom plate, and 11 end of cylindrical protrusion connects nearly hemisphere
Shell 19, connects two arc-shaped protrusions 20 at nearly 19 rim openings of hemispherical Shell, two 20 positions of arc-shaped protrusions it is opposite and on
Median sagittal plane is symmetrical, and two 20 outside wall surfaces of arc-shaped protrusions be smaller than or equal to described two notches 18 it
Between distance, more than the annular groove the opening of K font solids end face overall diameter.Pass through two notches, 18 liang of arcs
Shape projection 20 can be put into annular groove 16, after by rotation, by arc-shaped protrusions 20 away from notch 18, so as to prevent ball
Shell 19 is deviate from from annular groove 16, not only forms cup-and-ball joint 4, but also ensure that the stability of the cup-and-ball joint 4.The arc
Shape side plate 3 is equipped with two screw holes 9 not in same level, is firmly fixed to face by arc side plate 3 by screw 22
On nearly centrum.19 structure of spherical shell is engaged with more than half sphere structure 17 in the junctional complex forms cup-and-ball joint 4, cup-and-ball joint
4 ensure that the postoperative rotation for closing on centrum, lateral bending, anteflexion, dorsiflexion function, and the screw 22 is respectively in screw hole 9.
As can be seen that annular groove 16 is exactly the gap for being used to place spherical shell 19 from Fig. 5 and Fig. 7, annular groove is in K
The opening overall diameter of font solid end face is less than the spacing of 20 outside wall surface of arc-shaped protrusions.
Centrum component, disc components are integrally formed using medical titanium alloy material, and it is equal directly to contact surface with bone face
It is provided with hydroxyapatite coating layer, is more conducively merged with surrounding tissue, ensure that postoperative stability.Inside and outside the spherical shell 19
Surface, 16 inside and outside wall of annular groove are processed by shot blasting, can effectively reduce the friction of contact surface (articular surface).
Referring to Fig. 6~Fig. 9, the 1 high 40 ± 3mm of body of K fonts solid of centrum component, by-level face Median sagittal diameter is
10 ± 1mm, the coronal footpath in back are 14 ± 2mm, before connected by smoothed curve at the endpoint that is connected with line segment below of circular arc
Connect, junction carries out the round and smooth processing of fillet of radius R1=1mm.Horizontal plane Median sagittal diameter apart from by-level face 10mm is
13 ± 1mm, the coronal footpath in back are 18 ± 2mm, before connected by smoothed curve at the endpoint that is connected with line segment below of circular arc
Connect, junction carries out the round and smooth processing of fillet of radius R2=2mm.Apart from the horizontal plane median sagittal of 15~20mm of by-level face
Footpath is 15 ± 1mm, and the coronal footpath in back is 22 ± 2mm, before at the endpoint that is connected with line segment below of circular arc by smoothed curve into
Row connection, junction carry out the round and smooth processing of fillet of radius R3=3mm, and above-mentioned each horizontal plane rear portion sideline is located at same coronal-plane
On.1 2~3mm of by-level face of distance K fonts solid carried out up and down inside both sides hollow out processing, make side thickness 2~
3mm, the opening of rectangle through slot 14 of side four is 4mm × 6mm, and 13 depth of small cylindrical tank of side random distribution is 1mm, and radius is
1mm。
Referring to Figure 11, Figure 12, more than half 17 diameter D2=10mm of sphere structure, more than half 17 top of sphere structure and K words
The distance of shape solid end face 15 is H1=2mm, and the 16 width W2=1.5mm of annular groove, annular groove is in K font geometry
The 21 overall diameter D3=11mm of opening in body end face, notch 18 space D 1=13mm, width W=on 16 outer wall of annular groove
6.2mm, depth H 2=3mm, 18 bottom of notch are dug inside 16 bottom H3=2mm of annular groove, 1 both ends of K fonts solid
Away from W1=3~5mm, the 15 coronal footpath in back of K font solids end face is W3=22 ± 2mm for Kongxiang.
Referring to Figure 13, Figure 14, the thickness of disc components bottom plate 2 and arc side plate 3 H6=1.5mm, 2 edge of bottom plate ellipse
6 minor axis radius of segmental arc is 13mm, major axis radius 15mm, and oval segmental arc 6 and the junction of line segment 7 carry out radius R4=2mm circles
The round and smooth processing in angle, the 3 high 12mm of arc side plate is in 60~70 degree of angles with bottom plate 2, and 11 radius of cylindrical protrusion is
4mm, high H4=1mm, end are connected with spherical shell 19,19 thickness W5=1.3mm of spherical shell, and 19 distance from top edge of opening of spherical shell is high
Spend H5=2mm, the spacing W4=12.8mm of 20 outside wall surface of arc-shaped protrusions, arc-shaped protrusions width W6=6mm.
The hydroxyapatite coating layer thickness is 20 μm.
Above-mentioned parameter can suitably be changed according to the difference of goat lumbar vertebrae size.
Bionical anti-dislocation goat lumbar vertebrae junctional complex assembly relation of the present invention is as follows：Cylinder on the bottom plate 2
The spherical shell 19 and 20 structure of arc-shaped protrusions of 11 end of shape projection and the more than half sphere structure 17 and annular groove 16 on centrum component
Anticreep cup-and-ball joint is formed, each contact surface of cup-and-ball joint is highly polished processing, ensures that joint is less during the motion
Arc side plate 3 is fixed on neighbouring centrum by friction and wear, screw 22 by screw hole 9 respectively.2 shape of bottom plate of disc components
Shape is similar with goat lumbar vertebrae soleplate, and coniform tooth dashes forward 10, and bottom plate 2 is combined with adjacent endplates more firm, and arc side plate 3 increases
With the contact area of neighbouring centrum, stress concentration is effectively reduced, so as to meet the weight-bearing function of lumbar vertebrae.In centrum component
Portion carries out hollowing out processing, can accommodate more bone grafting, and side is equipped with rectangle through slot 14 and the small cylindrical tank 13 of random distribution, more
Attachment, growth beneficial to surrounding tissue, ensure that postoperative long-time stability.Anticreep cup-and-ball joint not only ensure that vertebra after implantation
The stability at disk position, prevents disc components and centrum isolation of components, and remains interpyramidal rotation, lateral bending, preceding
Bend, dorsiflexion function, be more in line with goat physiological status.
In short, it is of the present invention it is bionical it is anti-dislocation goat lumbar vertebrae junctional complex, including centrum component, disc components and
Screw.Centrum component is made of " K " font solid of class goat lumbar vertebrae form, carries out hollowing out processing, side inside solid
Equipped with small cylindrical tank and rectangle through slot, upper and lower ends face is equipped with annular groove, and groove inner wall is more than half sphere structure, and outer wall is gone forward
Two small gaps are equipped with afterwards.Disc components are made of bottom plate, arc side plate and cylindrical protrusion, and bottom plate is equipped with coniform tooth
Prominent, arc side plate is equipped with two screw holes not in same level, and cylindrical protrusion end is with two arc-shaped protrusions
Nearly hemisphere shell structure.Nearly hemisphere shell structure in the junctional complex on disc components and the big hemisphere on centrum component
Structure, which is engaged, forms anticreep cup-and-ball joint, and articular surface is processed by shot blasting there is hydroxy-apatite with bone face contact position in complex
Stone coating.The present invention can not only substitute the centrum taken down in goat lumbar surgery and neighbouring interverbebral disc, and remain vertebra
The rotation of disk, bend and stretch function, and total is equipped with anti-drop device, not only ensure that postoperative stability, but also remain waist
The activity of vertebra, can be as the safety evaluation model of people's prosthese closer to goat physiological status on bionics.
Claims (8)
- A kind of 1. bionical anti-dislocation goat lumbar vertebrae junctional complex, it is characterised in that：The goat lumbar vertebrae junctional complex includes vertebra Body component and the disc components for being arranged at centrum component both ends, the centrum component includes K fonts solid (1), described Disc components include bottom plate (2) corresponding with the soleplate and side view of lumbar vertebra and arc side plate (3) respectively, institute State arc side plate (3) to be arranged on the bottom plate (2), the bottom plate (2) of the disc components and pair of K fonts solid (1) Answer and be connected by cup-and-ball joint (4) between side end face；It is circular groove that opening is provided with two end faces of the K fonts solid (1), is provided with and is used in the groove It is described most to leave gap between sphere structure and the groove as more than half sphere structure of cup-and-ball joint ball and socket joint；It is described The nearly hemispherical Shell (19) being used for as cup-and-ball joint fossa glenoid coordinated with more than half sphere structure is provided with gap；Two arc-shaped protrusions (20), described two arc-shaped protrusions (20) positions phase are provided with the edge of opening of the spherical shell (19) It is right and symmetrical on median sagittal plane, two notches (18), two notches (18) are provided with the wall of the groove Position is opposite and symmetrical on coronal-plane, and the outside wall surface of two arc-shaped protrusions (20) is smaller than or equal to described two The distance between a notch (18), and more than the diameter at the slot opening；The centrum component and disc components are used and are integrally formed.
- A kind of 2. bionical anti-dislocation goat lumbar vertebrae junctional complex according to claim 1, it is characterised in that：The bottom plate (2) line segment (7) that edge is connected by oval segmental arc (6) and with the both ends of the ellipse segmental arc (6) forms, the ellipse segmental arc (6) with the round and smooth processing in junction of line segment (7), the ellipse segmental arc (6) is with the elliptical long axial symmetry of correspondence, the arc side plate (3) be arranged in the oval segmental arc (6) at the bottom plate (2) edge, the arc side plate (3) slope inwardly and with the bottom plate (2) it is in 60~70 degree of angles, screw hole (9) is provided with the arc side plate (3).
- A kind of 3. bionical anti-dislocation goat lumbar vertebrae junctional complex according to claim 2, it is characterised in that：The screw hole (9) it is two, two screw holes (9) are not in same level.
- A kind of 4. bionical anti-dislocation goat lumbar vertebrae junctional complex according to claim 1, it is characterised in that：The bottom plate (2) coniform tooth is provided with to dash forward (10) and cylindrical protrusion (11), coniform tooth dash forward (10) be located at the arc side plate (3) The same side surface of the bottom plate (2), coniform tooth dash forward (10) be spaced apart along ellipse on the bottom plate (2), it is cylindric Projection (11) is located on another side surface of the bottom plate (2), center line and the bottom plate (2) plane of cylindrical protrusion (11) Center overlaps.
- A kind of 5. bionical anti-dislocation goat lumbar vertebrae junctional complex according to claim 1, it is characterised in that：The K fonts The side of solid (1) includes the rectangle plane extended along coronal-plane and the saddle curved surface being connected with the rectangle plane, institute State in K fonts solid (1) and be provided with cavity (12), several circular grooves are provided with the side of the K fonts solid (1) (13) and with the cavity (12) the rectangle through slot (14) connected.
- A kind of 6. bionical anti-dislocation goat lumbar vertebrae junctional complex according to claim 5, it is characterised in that：The circular groove (13) it is randomly distributed on the side of the K fonts solid (1), the rectangle through slot (14) is respectively along sagittal plane and coronal The traveling of face direction is simultaneously symmetrically distributed on the K fonts solid (1) on by-level face, and more than half sphere structure is high Go out the K fonts solid (1) and correspond to side end face, the spherical shell (19) and the cylindrical protrusion being arranged on the bottom plate (2) (11) it is connected.
- A kind of 7. bionical anti-dislocation goat lumbar vertebrae junctional complex according to claim 1, it is characterised in that：The goat waist Vertebra junctional complex uses medical titanium alloy material, is directly contacted with bone face on the side of the centrum component and disc components Surface be both provided with hydroxyapatite coating layer.
- A kind of 8. bionical anti-dislocation goat lumbar vertebrae junctional complex according to claim 1, it is characterised in that：The ball-and-socket closes The articular surface of section uses polishing treatment.
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| CN108685627A (en) * | 2018-06-15 | 2018-10-23 | 陕西东望科技有限公司 | A kind of spinal prostheses and preparation method thereof based on 3D printing |
| CN109758273A (en) * | 2019-02-28 | 2019-05-17 | 河南省人民医院 | A kind of adjustable autostability lumbosacral segment artificial vertebral body |
| CN115192271A (en) * | 2022-07-12 | 2022-10-18 | 郝定均 | Double-segment bionic cervical intervertebral disc and vertebral body connecting system |
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| CN205626206U (en) * | 2016-04-29 | 2016-10-12 | 西安交通大学第二附属医院 | Bionical anticreep position goat lumbar vertebrae junctional complex |
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| CN1018714B (en) * | 1991-01-18 | 1992-10-21 | 王芬 | Adjustable l-type artificial vertebre |
| DE10130798A1 (en) * | 2001-06-22 | 2003-07-10 | Thomas Rene | Endoprosthesis of an intervertebral disk comprises a bent plate with a U- or V-shaped cross section and tabs for fixing screws |
| US6908484B2 (en) * | 2003-03-06 | 2005-06-21 | Spinecore, Inc. | Cervical disc replacement |
| US8273129B2 (en) * | 2004-02-10 | 2012-09-25 | Atlas Spine, Inc. | PLIF opposing wedge ramp |
| CN101019787B (en) * | 2006-12-31 | 2012-09-05 | 中国人民解放军第四军医大学 | Physiological cervical vertebral reconstructing system |
| CN101627931B (en) * | 2009-08-06 | 2010-12-01 | 雷伟 | Artificial cervical complex joint |
| CN102240234B (en) * | 2011-06-29 | 2013-07-10 | 西安交通大学 | Adjustable artificial cervical vertebra and intervertebral connecting complex |
| CN202537716U (en) * | 2012-04-24 | 2012-11-21 | 南方医科大学 | Artificial cervical vertebra |
| CN104207864A (en) * | 2013-05-29 | 2014-12-17 | 天津市威曼生物材料有限公司 | Dynamic stable mesh cage |
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