CN108354696A - 3D printing artificial vertebral body - Google Patents

3D printing artificial vertebral body Download PDF

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Publication number
CN108354696A
CN108354696A CN201810243499.7A CN201810243499A CN108354696A CN 108354696 A CN108354696 A CN 108354696A CN 201810243499 A CN201810243499 A CN 201810243499A CN 108354696 A CN108354696 A CN 108354696A
Authority
CN
China
Prior art keywords
vertebral body
support component
artificial vertebral
nail hole
printing artificial
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201810243499.7A
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Chinese (zh)
Other versions
CN108354696B (en
Inventor
郑明辉
陈建庭
瞿东滨
朱青安
陆国赞
朱纬纬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou China Titanium Three-Dimensional Material Manufacturing Co Ltd
Original Assignee
Guangzhou China Titanium Three-Dimensional Material Manufacturing Co Ltd
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Publication date
Application filed by Guangzhou China Titanium Three-Dimensional Material Manufacturing Co Ltd filed Critical Guangzhou China Titanium Three-Dimensional Material Manufacturing Co Ltd
Priority to CN201810243499.7A priority Critical patent/CN108354696B/en
Priority to PCT/CN2018/096298 priority patent/WO2019178989A1/en
Publication of CN108354696A publication Critical patent/CN108354696A/en
Application granted granted Critical
Publication of CN108354696B publication Critical patent/CN108354696B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • A61F2/3094—Designing or manufacturing processes
    • A61F2/30942—Designing or manufacturing processes for designing or making customized prostheses, e.g. using templates, CT or NMR scans, finite-element analysis or CAD-CAM techniques
    • 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
    • A61F2/4405—Joints for the spine, e.g. vertebrae, spinal discs for apophyseal or facet joints, i.e. between adjacent spinous or transverse processes
    • 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
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    • A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2/4455—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y80/00—Products made by additive manufacturing
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    • 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
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    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30576—Special structural features of bone or joint prostheses not otherwise provided for with extending fixation tabs
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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Public Health (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Cardiology (AREA)
  • Neurology (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Prostheses (AREA)

Abstract

The invention discloses a kind of 3D printing artificial vertebral bodies, the second support component being connected including the first support component and with the first support component, first support component and the second support component run through the upper surface and the lower surface of 3D printing artificial vertebral body, first support component is placed in the rear side of the 3D printing artificial vertebral body, first support component is the U-shaped structure to 3D printing artificial vertebral body medial recess, gap between first support component and second support component is equipped with obturator, obturator is by several a diameter of 0.2mm 2mm, the micropore composition that porosity is 60% 80%.The 3D printing artificial vertebral body of the present invention, with high bio-imitability, larger closes on centrum contact area, improves centrum and bears to squeeze required rigidity；With normal vertebral body elasticity modulus cushioning effect, the raising of high porosity micropore closes on centrum bone tissue and cavity is implanted into growing into for bone tissue, improves syncretizing effect.

Description

3D printing artificial vertebral body
Technical field
The present invention relates to medical fields, more specifically, being a kind of 3D printing artificial vertebral body.
Background technology
The sufferer that the Vertebrals such as the serious blow-out fracture of tumor of spine, backbone seriously destroy, therapy are mainly Full Vertebrae resection, which can seriously destroy the stability of spinal biomechanics, every to implement full vertebral resection patient, be both needed to Rebuild spinal stability, i.e., the implantable artificial centrum at the centrum of excision, of traditional artificial vertebral body not directed to patient Propertyization designs, and does not have cushioning effect after being squeezed, while its support stiffness is inadequate, and the treatment effect of rationality is not achieved Fruit.
Invention content
The purpose of the present invention is to provide a kind of 3D printing artificial vertebral bodies, with high bio-imitability, meet centrum in human body Personalized designs, meet human anatomic structure, biomethanics and bone tissue and grow into, larger closes on centrum contact area, carries High centrum is born to squeeze required rigidity；With normal vertebral body elasticity modulus cushioning effect, the raising of high porosity micropore closes on vertebra Body bone tissue and cavity are implanted into growing into for bone tissue, improve syncretizing effect.
Its technical solution is as follows：
3D printing artificial vertebral body includes the first support component and the second support component for being connected with first support component, First support component and second support component run through the upper surface and the lower surface of the 3D printing artificial vertebral body, institute The rear side that the first support component is placed in the 3D printing artificial vertebral body is stated, first support component is artificial to the 3D printing The U-shaped platy structure of centrum medial recess, the gap between first support component and second support component, which is equipped with, to be filled out Fill body, the obturator is made of micropore, the micro-pore diameter be 0.2mm-2mm, the obturator also have upper surface and under Surface.
Second support component include the first support plate and the second support plate, first support plate with described second Fagging is arranged relative to the central axes of the 3D printing artificial vertebral body at axial symmetry, first support plate and second support Plate and the angle of horizontal direction are 60 degree of -90 degree.
Connection component is equipped between first support component and second support component, the connection component is also at least Part runs through the upper surface and the lower surface of the 3D printing artificial vertebral body.
The connection component includes the first connecting plate and the second connecting plate, first connecting plate and second connecting plate Angle with horizontal direction is 60 degree of -90 degree, first connecting plate and second connecting plate and second support component Between be equipped with connection ring, the connection ring include the first connection ring and the second connection ring, first connection ring and described second Connection ring is sheathed on first support plate, second support plate, first connecting plate and second connecting plate.
The middle part of the obturator is equipped with cavity, which is located at first connecting plate, second connecting plate, described Between second support component, first connection ring and second connection ring, which communicates with the micropore.
The connection component and second support component are set on the inside of the U-shaped platy structure two sides.
It is respectively equipped with the first nail hole frame and the second nail hole frame, first nail hole in the middle part of first support component two sides Frame is connected after running through first support component with first support plate, and the second nail hole frame runs through the first support group It is connected with second support plate after part, the first nail hole frame is located at the outside of first connecting plate, second nail hole Frame is located on the outside of second connecting plate, and the first nail hole frame and the second nail hole frame be located at first connection ring and Between second connection ring.
The nail hole that the first nail hole frame and the second nail hole frame are formed in first support component it is a diameter of The angle of 6mm-8mm, the central axes and horizontal direction of the first nail hole frame and the second nail hole frame are 0 degree of -15 degree.
Oblique type groove is respectively equipped with immediately below the first nail hole frame and the second nail hole frame, the oblique type groove is straight Diameter is 3mm-5mm.
The micropore by quadrangle and hexagonal groups at the tetrakaidecahedron or combined by the dodecahedron that quadrangle forms and At the micropore rate is 60%-80%.
Advantages of the present invention or principle are illustrated below：
1, the first support component of plate and the second support component for running through 3D printing artificial vertebral body ensure that 3D printing people The rigidity of work centrum is not in excessive deformation when 3D printing artificial vertebral body being made to be squeezed, the filling of several micropores compositions Body is unlikely to make 3D printing artificial vertebral body because excessive when 3D printing artificial vertebral body is squeezed with certain cushioning effect Impact force be damaged, be located at centrum bone tissue above 3D printing artificial vertebral body can by the micropore of obturator upper surface into Enter 3D printing artificial vertebral body, the centrum bone tissue below 3D printing artificial vertebral body can enter 3D by the lower surface of obturator Artificial vertebral body is printed, 3D printing artificial vertebral body is increased and closes on the interfacial contact area of centrum, meanwhile, the upper surface of obturator And the micropore of lower surface has certain anti-skidding effect, makes between the 3D printing artificial vertebral body and centrum over and under of implantation Will not occur the case where shifting and misplacing because of activity,
2, the U-shaped platy structure of the first support plate increases the support force of backbone center pillar, and recessed portion thereon avoids compressing hard Spinal meninges capsule, spinal cord, nerve root, meanwhile, the two sides of U-shaped platy structure increase 3D printing artificial vertebral body stability and support force Degree, U-shaped platy structure are put into human body convenient for 3D printing artificial vertebral body without easy damaged spinal cord, nerve root and surrounding during operation Soft tissue.
3, symmetrical and the first support plate that with horizontal direction there is certain angle to be arranged and the second support plate increase 3D and beat The rigidity for printing artificial vertebral body makes 3D printing artificial vertebral body excessive deformation, fracture do not occur because squeezing.
4, the connection component for partly running through 3D printing artificial vertebral body, which increase the rigid of 3D printing artificial vertebral body center pillar Property.
5, the first connecting plate of connection component, the second connecting plate, the first connection ring and the second connection ring make the first support group Part and the second support component securely connect, while keeping the space between the first support component and the second support component more firm, Make obturator that excessive deformation, fracture will not occur because squeezing.
6, the cavity that the 3D printing artificial vertebral body is equipped with, inside can be put into human body autologous bone or homogeneous allogenic bone, and it is empty Chamber is communicated with micropore, then make to close on centrum bone tissue can by cavity over and under and the upper following table of 3D printing artificial vertebral body The micropore in face is grown into, and be ensure that and is closed on fully merging for centrum and 3D printing artificial vertebral body, and local stability is improved.
7, connect the first support component and the second support component the first nail hole frame and the second nail hole frame, inside can be screwed into Pedicle screw is used to be connected and fixed 3D printing artificial vertebral body by rear and closes on centrum, meanwhile, the first nail hole frame and second It is more secured that nail hole frame makes the first support component and the second support component connect.
8, the first nail hole frame and the second nail hole frame being obliquely installed strengthen the steady of on the outside of 3D printing artificial vertebral body and rear Solidity.
9, the oblique type groove below the first nail hole frame and the second nail hole frame, position setting meet spinal nerves root and walk To, while tiltedly the size design of type groove then avoids the compressing and damage to the nerve by oblique type groove.
Description of the drawings
Fig. 1 is the vertical view of the embodiment of the present invention；
Fig. 2 is the dimensional structure diagram without obturator of the embodiment of the present invention；
Fig. 3 is the vertical view of Fig. 2 of the embodiment of the present invention；
Fig. 4 is the rearview of the embodiment of the present invention；
Fig. 5 is the sectional view of the embodiment of the present invention.
Reference sign：
10, the first support component；20, the second support component；21, the first support plate；22, the second support plate；30, connection group Part；31, the first connecting plate；32, the second connecting plate；33, the first connection ring；34, the second connection ring；40, the first nail hole frame；50、 Second nail hole frame；60, oblique type groove.
Specific implementation mode
The embodiment of the present invention is described in detail below.
As shown in FIG. 1, FIG. 1 is the structural schematic diagrams of the embodiment of the present invention.The present embodiment discloses a kind of for being implanted into human body Intravertebral 3D printing artificial vertebral body, in the height and human body of the 3D printing artificial vertebral body of the present embodiment lesion or destroy centrum and The total height of upper and lower interverbebral disc is identical, as shown in Fig. 2, the 3D printing artificial vertebral body of the present embodiment include the first support component 10 and The second support component 20 being connected with the first support component 10, the first support component 10 and the second support component 20 run through 3D and beat Print the upper surface and the lower surface of artificial vertebral body.Wherein, the first support component 10 is located at the rear side of 3D printing artificial vertebral body, and first Support component 10 is the U-shaped platy structure of 3D printing artificial vertebral body medial recess, in the present embodiment, U-shaped platy structure recess The radius in portion is 12mm-15mm, and the distance between U-shaped structure two sides are lesion or destruction centrum width.Second support component 20 include the first support plate 21 and the second support plate 22, and the first support plate 21 and the second support plate 22 are relative to the artificial vertebra of 3D printing The central axes of body are arranged at axial symmetry, and the angle of the first support plate 21 and the second support plate 22 and horizontal direction is 60 degree -90 Degree.
Connection component 30 is equipped between first support component 10 and the second support component 20, connection component 30 and second supports Component 20 is set on the inside of U-shaped structure two sides, and connection component 30 also at least partly runs through the upper table of 3D printing artificial vertebral body Face and lower surface, as shown in Fig. 2, connection component 30 includes the first connecting plate 31, the second connecting plate 32 and connection ring, the first connection Plate 31 and the second connecting plate 32 are also arranged relative to 3D printing artificial vertebral body at axial symmetry, meanwhile, the first connecting plate 31 and second connects Fishplate bar 32 and the angle of horizontal direction are 60 degree of -90 degree.The first support plate 21, the second support plate 22, first being obliquely installed connect Fishplate bar 31 and the second connecting plate 32 strengthen the stability of 3D printing artificial vertebral body.As Figure 1 and Figure 4, connection ring includes first Connection ring 33 and the second connection ring 34, the first connection ring 33 and the second connection ring 34 are sheathed on the support of the first support plate 21, second Plate 22, the first connecting plate 31 and the second connecting plate 32.
Gap between first support component 10, the second support component 20 and connection component 30 is equipped with obturator, obturator It is made of several micropores, micro-pore diameter 0.2mm-2mm, micropore is by the quadrangle and hexagonal groups that porosity is 60%-80% At the tetrakaidecahedron or be composed of the dodecahedron that quadrangle forms, obturator also has the upper surface and the lower surface, filling The upper surface and the lower surface of body has certain antiskid effect, the 3D printing artificial vertebral body after filling and 10 phase of the first support component To another side be arcwall face, the middle part of obturator is equipped with cavity, the cavity be located at the first connecting plate 31, the second connecting plate 32, Between second support component 20, the first connection ring 33 and the second connection ring 34, cavity is communicated with micropore, for being implanted into the cavity Human body autologous bone or homogeneous allogenic bone, closing on the bone tissue of centrum can carry by the top, lower section and micropore of cavity are grown into The presence of high fusion rate, micropore increases interfacial contact area and fusion area.
As shown in figure 4, being connected and fixed with intercolumnar after being implanted into for 3D printing artificial vertebral body, in the first support component 10 U-shaped platy structure two sides in the middle part of be respectively equipped with the first nail hole frame 40 and the second nail hole frame 50, the first nail hole frame 40 runs through It is connected with the first support plate 21 after first support component 10, the second nail hole frame 50 supports after running through the first support component 10 with second Plate 22 is connected, and the first nail hole frame 40 is located at the outside of the first connecting plate 31, and the second nail hole frame 50 is located at the outer of the second connecting plate 32 Side, as shown in figure 5, the first nail hole frame 40 and the second nail hole frame 50 are respectively positioned between the first connection ring 33 and the second connection ring 34, The a diameter of 6mm-8mm of nail hole that first nail hole frame 40 and the second nail hole frame 50 are formed in the first support component 10, the first nail hole The angle of the central axes and horizontal direction of frame 40 and the second nail hole frame 50 is 0 degree of -15 degree, meanwhile, the first nail hole frame 40 and second Angle between the two sides of one end that nail hole frame 50 is connected with the first support plate 21 and the second support plate 22 respectively is 60 degree -90 Degree, the first nail hole frame 40 and the second nail hole frame 50 are for being screwed into pedicle screw.
Endorchis, spinal cord or nerve root are damaged in order to be reduced or avoided in 3D printing artificial vertebral body implantation process, such as Fig. 4 institutes Show, is respectively equipped with oblique type groove 60 in the underface of the first nail hole frame 40 and the second nail hole frame 50, oblique type groove 60 is nerve root Trend and size is more than nerve root size, oblique a diameter of 3mm-5mm of type groove in the present embodiment.
The advantages of the present embodiment, is as follows：
1, plate the first support component 10 and the second support component 20 for running through 3D printing artificial vertebral body ensure that 3D is beaten The rigidity for printing artificial vertebral body is not in excessive deformation when 3D printing artificial vertebral body being made to be squeezed, several micropores compositions Obturator, when 3D printing artificial vertebral body is squeezed with certain cushioning effect, be unlikely to make 3D printing artificial vertebral body because Excessive impact force is damaged, and the micro- of obturator upper surface can be passed through by being located at the centrum bone tissue above 3D printing artificial vertebral body Hole enters 3D printing artificial vertebral body, be located at centrum bone tissue below 3D printing artificial vertebral body can by the lower surface of obturator into Enter 3D printing artificial vertebral body, increase and 3D printing artificial vertebral body and close on the interfacial contact area of centrum, meanwhile, obturator it is upper The micropore of surface and lower surface has certain anti-skidding effect, the 3D printing artificial vertebral body for making implantation and centrum over and under Between will not occur the case where shifting and misplacing because of activity.
2, the U-shaped platy structure of the first support plate 10, increases the support force of backbone center pillar, and recessed portion thereon avoids oppressing Dural sac, spinal cord, nerve root, meanwhile, the two sides of U-shaped platy structure increase 3D printing artificial vertebral body stability and support force Degree, U-shaped platy structure are put into human body convenient for 3D printing artificial vertebral body without easy damaged spinal cord, nerve root and surrounding during operation Soft tissue.
3, symmetrical and the first support plate 21 that with horizontal direction there is certain angle to be arranged and the second support plate 22 increase The rigidity of 3D printing artificial vertebral body makes 3D printing artificial vertebral body excessive deformation, fracture do not occur because squeezing.
4, the connection component 30 for partly running through 3D printing artificial vertebral body, which increase the rigid of 3D printing artificial vertebral body center pillar Property.
5, the first connecting plate 31 of connection component 30, the second connecting plate 32, the first connection ring 33 and the second connection ring 34, make First support component 10 and the securely connection of the second support component 20, at the same make the first support component 10 and the second support component 20 it Between space it is more firm, make obturator that excessive deformation, fracture will not occur because squeezing.
6, the cavity that the 3D printing artificial vertebral body is equipped with, inside can be put into human body autologous bone or homogeneous allogenic bone, and it is empty Chamber is communicated with micropore, then make to close on centrum bone tissue can by cavity over and under and the upper following table of 3D printing artificial vertebral body The micropore in face is grown into, and be ensure that and is closed on fully merging for centrum and 3D printing artificial vertebral body, and local stability is improved.
7, the first nail hole frame 40 and the second nail hole frame 50 of the first support component 10 and the second support component 20 are connected, in Portion can be screwed into pedicle screw for being connected and fixed 3D printing artificial vertebral body by rear and closing on centrum, meanwhile, the first nail hole It is more secured that frame 40 and the second nail hole frame 50 make the first support component 10 and the second support component 20 connect.
8, the first nail hole frame 40 and the second nail hole frame 50 being obliquely installed strengthen 3D printing artificial vertebral body outside and rear Stability.
9, set on the oblique type groove 60 of 50 lower section of the first nail hole frame 40 and the second nail hole frame, position setting meets backbone god It is moved towards through root, while tiltedly the size design of type groove 60 is then avoided to by the neural compressing and damage at oblique type groove 60 Wound.
It these are only specific embodiments of the present invention, protection scope of the present invention do not limited with this；Do not violating this hair Any replacement and improvement, belong to protection scope of the present invention made by the basis of bright design.

Claims (10)

1.3D prints artificial vertebral body, which is characterized in that the to be connected including the first support component and with first support component Two support components, first support component and second support component run through the upper surface of the 3D printing artificial vertebral body And lower surface, first support component are placed in the rear side of the 3D printing artificial vertebral body, first support component is to institute The U-shaped platy structure of 3D printing artificial vertebral body medial recess is stated, between first support component and second support component Gap be equipped with obturator, the obturator is made of micropore, and the micro-pore diameter is 0.2mm-2mm, and the obturator also has There is the upper surface and the lower surface.
2. 3D printing artificial vertebral body as described in claim 1, which is characterized in that second support component includes the first support Plate and the second support plate, first support plate and central axes of second support plate relative to the 3D printing artificial vertebral body It is arranged at axial symmetry, first support plate and the angle of second support plate and horizontal direction are 60 degree of -90 degree.
3. 3D printing artificial vertebral body as claimed in claim 2, which is characterized in that first support component and second described Connection component is equipped between support component, the connection component also at least partly runs through the upper surface of the 3D printing artificial vertebral body And lower surface.
4. 3D printing artificial vertebral body as claimed in claim 3, which is characterized in that the connection component include the first connecting plate and Second connecting plate, first connecting plate and second connecting plate and the angle of horizontal direction be 60 degree -90 degree, described first Connection ring is equipped between connecting plate and second connecting plate and second support component, the connection ring includes the first connection Ring and the second connection ring, first connection ring and second connection ring are sheathed on first support plate, second described Fagging, first connecting plate and second connecting plate.
5. 3D printing artificial vertebral body as claimed in claim 4, which is characterized in that the middle part of the obturator is equipped with cavity, should Cavity is located at first connecting plate, second connecting plate, second support component, first connection ring and described Between two connection rings, which communicates with the micropore.
6. 3D printing artificial vertebral body as claimed in claim 5, which is characterized in that the connection component and the second support group Part is set on the inside of the U-shaped platy structure two sides.
7. 3D printing artificial vertebral body as claimed in claim 6, which is characterized in that part in first support component two sides Not She You the first nail hole frame and the second nail hole frame, the first nail hole frame run through first support component after with described first Fagging is connected, and the second nail hole frame is connected after running through first support component with second support plate, first nail Aperture frame is located at the outside of first connecting plate, and the second nail hole frame is located on the outside of second connecting plate, and described first Nail hole frame and the second nail hole frame are between first connection ring and second connection ring.
8. 3D printing artificial vertebral body as claimed in claim 7, which is characterized in that the first nail hole frame and second nail hole The a diameter of 6mm-8mm for the nail hole that frame is formed in first support component, the first nail hole frame and second nail hole The central axes of frame and the angle of horizontal direction are 0 degree of -15 degree.
9. such as claim 7 or 3D printing artificial vertebral body according to any one of claims 8, which is characterized in that the first nail hole frame and Oblique type groove is respectively equipped with immediately below the second nail hole frame, the oblique type groove diameter is 3mm-5mm.
10. 3D printing artificial vertebral body as claimed in claim 9, which is characterized in that the micropore is by quadrangle and hexagonal groups At the tetrakaidecahedron or be composed of the dodecahedron that quadrangle forms, the micropore rate is 60%-80%.
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