CN106510906B - The support construction portion of POROUS TITANIUM Invasive lumbar fusion device - Google Patents
The support construction portion of POROUS TITANIUM Invasive lumbar fusion device Download PDFInfo
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- CN106510906B CN106510906B CN201710000046.7A CN201710000046A CN106510906B CN 106510906 B CN106510906 B CN 106510906B CN 201710000046 A CN201710000046 A CN 201710000046A CN 106510906 B CN106510906 B CN 106510906B
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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
- A61F2/4455—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
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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
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
-
- 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
- A61F2002/30108—Shapes
- A61F2002/30199—Three-dimensional shapes
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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
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2002/3093—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth for promoting ingrowth of bone tissue
-
- 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
- A61F2002/30985—Designing or manufacturing processes using three dimensional printing [3DP]
-
- 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
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00005—The prosthesis being constructed from a particular material
- A61F2310/00011—Metals or alloys
- A61F2310/00023—Titanium or titanium-based alloys, e.g. Ti-Ni alloys
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Neurology (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
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- Prostheses (AREA)
Abstract
The invention discloses a kind of positions of POROUS TITANIUM Invasive lumbar fusion device, and also as the support construction portion of POROUS TITANIUM Invasive lumbar fusion device, the support construction portion are used to guide new Bone Ingrowth for undertaking external load, pore structure portion.Upside, downside, front side, rear side and the right side in support construction portion are in openly to exposing outside, and front side, rear side and right side all have the cylindrical open space of triangle.When the support construction portion is used for POROUS TITANIUM Invasive lumbar fusion device, pore structure portion engaged therewith is in provide open growing space openly to exposing outside for effective growth of sclerotin etc. on the upside of fusion device, downside, front side, rear side and right side.The support construction portion of POROUS TITANIUM Invasive lumbar fusion device provided by the invention not only can independently exercise the function of oneself, but also can cooperate with pore structure portion and achieve the effect that intervertebral is treated.
Description
Technical field
The present invention relates to the implantation material for vertebrae, belong to fixed network in intervertebral fusion, and in particular to a kind of porous
The position of titanium Invasive lumbar fusion device.
Background technique
The degenerative disc disease of the symptoms such as protrusion of lumber intervertebral disc and cervical spondylosis is one of modern society common disease
And frequently-occurring disease, seriously affect the quality of life of patient.Spinal fusion is one of most widely used technology of spinal surgery, main logical
It crosses and establishes at once stable backbone and implantation material ostosis effect, bone inductive effect, bone conduction effect promote backbone Bony union.
Currently, intervertebral fusion has become treatment lumbar instability, lumbar spinal stenosis, degenerated centrum olisthe, degenerated spine lateral bending, false pass
The main means of the illness such as section and degenerative disc disease.Fusion device in the prior art is according to the mode of postoperative bone tissue growth
Difference be broadly divided into two types, the first kind is provided with the fusion device of bone graft area, and the second class is the fusion device for not setting bone graft area.
Chinese patent literature CN204683846U(application number 201520112316.X) disclose a kind of arc anterior lateral cervical approach
Fusion device between spinal vertebral.The fusion device generally ellipsoidal structure, top and bottom are equipped with gradual wave rib tooth；Fusion device is also
It is symmetrically provided with the through-hole for two approximate half-circulars being arranged along the vertical direction, and two through-holes can be convenient implantation autologous bone.
The device is designed using super-large diameter, can be improved stability between centrum, can also improve the mechanical strength for bearing compression.This is practical
For novel disclosed fusion device although having relatively stable support construction, the effect of sclerotin to regrow is not ideal enough.
Fusion device disclosed in the document belongs to first kind fusion device.
Chinese patent literature CN201529176U(application number 200920247060.8) one kind is disclosed for vertebral fusion
When the embedded bone trabecula intervertebral fusion device that is implanted into, have by titanium alloy powder through the molding reticulated porous structures of electron beam melting, shape
Shape can be wedge-shaped, rectangular, semicircle or triangle, or be designed according to the concrete condition of patient's diseased region.The bone trabecula
There is a through-hole in the centre of Invasive lumbar fusion device, and the aperture of reticular structure is 50-900 microns, porosity 40-90%, and surface is also
There can be hydroxyapatite coating layer.Although fusion device disclosed in the utility model can reduce stress shielding band to a certain extent
The adverse effect come, and single reticulated porous structures are used, but the effect of sclerotin to regrow is still not ideal enough.This article
It offers disclosed fusion device and belongs to first kind fusion device.
204581605 U(application number 201520265012.7 of Chinese patent literature CN) a kind of Invasive lumbar fusion device is disclosed,
Fusion device ontology including approximate cuboid is provided with the bone grafting hole penetrated through vertically, fusion device ontology in the fusion device ontology
Upper and lower surfaces be evenly arranged with teeth；The front end face of fusion device ontology is gradually slipped over to contract by rounding marginal ray
It crosses, the rear end face of fusion device ontology is provided with implantation location hole and implantation locating slot；The two sides hollow out of fusion device ontology runs through,
Hollow part is provided with growth net.But since the surrounding of the upper side and lower side in the support construction portion of its ontology namely fusion device accounts for
There is certain space, the growth of postoperative sclerotin is adversely affected.104706446 A(application of Chinese patent literature CN
Number 201510129242.5) fusion device disclosed in is also similar with the fusion device.Fusion device disclosed in two documents belongs to
First kind fusion device.
Chinese patent literature CN102293693 A(application number 201110146497.4) one kind is disclosed with bioactivity
Porous titanium alloy people's neck Invasive lumbar fusion device and preparation method thereof.The standby Invasive lumbar fusion device of the invention patent system has and natural bone group
Similar elasticity modulus is knitted, porous structure and its Internal biological active factors slow-released system can induce freshman bone tissue and grow into.It should
Patent although solves the problems, such as fusion device elasticity modulus and natural bone tissue matches and Bone Ingrowth, but this single more
Pore structure lacks anti-fatigue ability, is easily broken off under the action of dynamic circulation stress, is not able to satisfy the demand of Long-Term Clinical.It should
Fusion device disclosed in document belongs to the second class fusion device.
Summary of the invention
The purpose of the present invention is to solve the above problem, provides a kind of lesser more to the growth obstruction of sclerotin etc. after surgery
The support construction portion of hole titanium Invasive lumbar fusion device.
The technical solution adopted by the present invention to solve the technical problems is: the support of POROUS TITANIUM Invasive lumbar fusion device of the invention
Structural portion is by 3D printer by a part of the fusion device of titanium alloy material one printing shaping, mutual with pore structure portion
The support construction portion being fixed together in integrated is for undertaking external load；It is the upside in support construction portion, downside, preceding
Side, rear side and right side are in openly to exposing outside, and front side, rear side and right side all have the cylindrical open space of triangle.
The support construction portion includes the mounting portion being sequentially connected, left support, interconnecting piece and right support；Mounting portion is equipped with
The slot device being arranged before and after a pair point and an instrument hole being located among a pair of of slot device along left and right to setting.
The support construction portion includes the mounting portion being sequentially connected, left support, interconnecting piece and right support；Left support and the right side
Bracket is all made of a pair of of four-bladed vane structure of distribution setting up and down and the structure being connected by corresponding column, left support and right branch
It is connected between frame by interconnecting piece.
The interconnecting piece in the support construction portion includes front column, rear column, upper beam and lower beam；Front column is stood with rear
It is connected by upper beam with lower beam between column；
Left support has upper left frame, lower-left frame and left column；Left column is connected between upper left frame and lower-left frame；It is left
Restocking and lower-left frame are in four-bladed vane structure, and are set simultaneously in from left front to behind the right side and from the left back intersection construction to before the right side
It sets, and left column is located at upper left frame and the respective crossover sites of lower-left frame；
The right side on the top of the rear and front end and mounting portion in the left side of upper left frame is connected, the rear and front end in the left side of lower-left frame
It is connected with the right side of the lower part of mounting portion；The right side front of upper left frame is connected with the upper left-hand of front column, the right side of upper left frame
Rear end is connected with the upper left-hand of rear column；The front end on the right side of lower-left frame is connected with the lower left side of front column, lower-left frame
The rear end on right side is connected with the lower left side of rear column；So that the front and rear sides of left support all have the cylindrical opening of triangle
Space；
Right support has upper right frame, bottom right frame and right central post；Right central post be connected to upper right frame and bottom right frame 14-2 it
Between；Upper right frame and bottom right frame are in four-bladed vane structure, and simultaneously in from left front to behind the right side and from the left back cross knot to before the right side
Structure setting, and right central post is located at upper right frame and the respective crossover sites of bottom right frame；
The front end in the left side of upper right frame is connected with the upper right of front column, the rear end in the left side of upper right frame and rear column
Upper right is connected；It is connected on the right side of the front end in the left side of bottom right frame and the lower part of front column, the rear end in the left side of bottom right frame is with after
It is connected on the right side of the lower part of column；So that the front and rear sides and right side of right support all have the cylindrical open space of triangle.
The support construction portion is additionally provided with right front column and right rear column；Right front column is connected to the right front ends of upper right frame
Between the right front ends of bottom right frame, right rear column is connected between the right rear end of upper right frame and the right rear end of bottom right frame.
The length L in the support construction portion is 22mm to 36mm, and wide W is 8mm to 14mm, and height H is 3mm to 18mm.
The good effect that the present invention has:
(1) the POROUS TITANIUM Invasive lumbar fusion device with support construction portion of the invention is by support construction portion of the invention for melting
Clutch is implanted into the mechanical support at initial stage, has excellent antifatigue mechanical property；And cooperate simultaneously with good elastic and tough
Property pore structure portion can promote the Bony union of upper hypocentrum Yu POROUS TITANIUM fusion device.Phase after the implantation, as bone tissue exists
Regeneration in microscopic void and the completion rebuild, form ideal bone-POROUS TITANIUM embedded structure, tie with support provided by the invention
The physiological loads at structure shared backbone position, the Invasive lumbar fusion device of this kind of support construction can be effectively used for clinically intervertebral
The treatment of disc degradation disease.
(2) the support construction portion of fusion device provided by the invention is centrally located, and pore structure portion is then arranged and is propping up
Most of region on the periphery at support structure position, and the position in the exposing external world of pore structure portion in the up-down direction accounts for fusion
The major part of the upper and lower side of device, when preferably using the left and right bracket of four-bladed vane structure as the main structure in support construction portion,
Structural strength is not only ensured, and forms the open space of front and back and rear side up and down, pore structure portion is then located at described
Open space in, can not only effectively guarantee that Invasive lumbar fusion device early period enters intracorporal mechanical support, and merge
After device is implanted into human body, open growing space is provided for effective growth of sclerotin etc., is more beneficial to fusion device and incorporates vertebra
Between.
Detailed description of the invention
Fig. 1 is a kind of stereoscopic schematic diagram using the fusion device in the support construction portion of Invasive lumbar fusion device of the invention.
Fig. 2 is the stereoscopic schematic diagram in the support construction portion in Fig. 1.
Fig. 3 is the schematic top plan view of Fig. 2.
Schematic diagram when Fig. 4 is from the forward observation of Fig. 2.
Fig. 5 is the stereoscopic schematic diagram of the pore structure part in Fig. 1.
Fig. 6 is the schematic diagram of the positive tetrahedron structural unit sub-assembly in the pore structure portion in Fig. 5.
Appended drawing reference in above-mentioned attached drawing is as follows:
Support construction portion 1, pore structure portion 2, mounting portion 11, slot device 11-1, instrument hole 11-2, left support 12, upper left
Frame 12-1, lower-left frame 12-2, left column 12-3, interconnecting piece 13, front column 13-1, rear column 13-2 right support 14, upper right frame
14-1, bottom right frame 14-2, right central post 14-3, right front column 15, right rear column 16, long L, wide W, high H, titanium column 21, long l are wide
W, high h.
Specific embodiment
Elaborate with reference to the accompanying drawing to the embodiment of the present invention: following embodiment is being with technical solution of the present invention
Under the premise of implemented, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to
Following embodiments.
(embodiment 1)
As shown in Figure 1, the support construction portion 1 of the POROUS TITANIUM Invasive lumbar fusion device of the present embodiment is to be closed titanium by 3D printer
A part of the fusion device of golden material one printing shaping is mutually fixed together use in integrated with pore structure portion 2
In undertaking external load；Upside, downside, front side, rear side and the right side in support construction portion 1 are and preceding in openly to exposing outside
Side, rear side and right side all have the cylindrical open space of triangle, and communicate inside the open space.
As described in Figure 2, the support construction portion 1 includes mounting portion 11, left support 12,13 and of interconnecting piece being sequentially connected
Right support 14.Mounting portion 11 is equipped with the slot device 11-1 that a pair of point of front and back is arranged and one is located at a pair of of device to setting along left and right
Instrument hole 11-2 among tool slot.
Left support 12 and right support 14 are all made of a pair of of four-bladed vane structure of distribution setting up and down and by corresponding columns
(left column 12-3 is connected with right central post 14-3), is connected between left support 12 and right support 14 by interconnecting piece 13, support
The interconnecting piece 13 of structural portion 1 includes front column 13-1, rear column 13-2, upper beam 13-3 and lower beam 13-4；Front column 13-1
It is connected by upper beam 13-3 with lower beam 13-4 between rear column 13-2.
Left support 12 has upper left frame 12-1, lower-left frame 12-2 and left column 12-3.Left column 12-3 is connected to a left side
Between restocking 12-1 and lower-left frame 12-2.Upper left frame 12-1 and lower-left frame 12-2 is in four-bladed vane structure, and is simultaneously in from left front
After to the right side and from the left back intersection construction setting to before the right side, and left column 12-3 is connected to upper left frame 12-1 and lower-left frame
Between the respective crossover sites of 12-2.
The rear and front end in the left side of upper left frame 12-1 is connected with the right side on the top of mounting portion 11, the left side of lower-left frame 12-2
Rear and front end be connected with the right side of the lower part of mounting portion 11.
The rear and front end on the right side of upper left frame 12-1 is connected with the left side on the top of interconnecting piece 13 namely upper left frame 12-1
Right side front is connected with the upper left-hand of front column 13-1, the right side rear end of upper left frame 12-1 and the upper left-hand of rear column 13-2
It is connected.The front end on the right side of lower-left frame 12-2 is connected with the lower left side of front column 13-1, the rear end on the right side of lower-left frame 12-2
It is connected with the lower left side of rear column 13-2；So that the front and rear sides of left support 12 all have the cylindrical open sky of triangle
Between.
Right support 14 has upper right frame 14-1, bottom right frame 14-2 and right central post 14-3.Right central post 14-3 is connected to the right side
Between restocking 14-1 and bottom right frame 14-2.Upper right frame 14-1 and bottom right frame 14-2 is in four-bladed vane structure, and is simultaneously in from left front
After to the right side and from the left back intersection construction setting to before the right side, and right central post 14-3 is connected to upper right frame 14-1 and bottom right frame
Between the respective crossover sites of 14-2
The rear and front end in the left side of upper right frame 14-1 is connected with the right side on the top of interconnecting piece 13 namely upper right frame 14-1
The front end in left side is connected with the upper right of front column 13-1, the rear end in the left side of upper right frame 14-1 and the top of rear column 13-2
Right side is connected.The rear and front end in the left side of bottom right frame 14-2 is connected with the right side of the lower part of interconnecting piece 13 namely bottom right frame 14-2
The front end in left side and the lower part of front column 13-1 on the right side of be connected, the rear end in the left side of bottom right frame 14-2 under rear column 13-2
It is connected on the right side of portion.So that the front and rear sides and right side of right support 14 all have the cylindrical open space of triangle.
Support construction portion 1 is additionally provided with right front column 15 and right rear column 16, and right front column 15 is connected to upper right frame 14-1's
Between right front ends and the right front ends of bottom right frame 14-2, right rear column 16 is connected to the right rear end and bottom right frame 14-2 of upper right frame 14-1
Right rear end between.
The front and back side of the left support 12 in the support construction portion 1, the front and back side of right support 14 and right side are in open
Setting, the design of this support construction can either effectively guarantee that Invasive lumbar fusion device early period enters intracorporal mechanical support, simultaneously
The design of four-bladed vane support provides open structure design while guaranteeing support construction surface maximum mechanical strength
Space, ensure that after fusion device is implanted into human body, a possibility that sclerotin is grown according to open mode, be more beneficial to melt
Clutch incorporates intervertebral.
See Fig. 3, the length L of the mechanical support structural portion 1 in the present embodiment is 28mm, and wide W is 11mm.
See Fig. 4, the height H of the mechanical support structural portion 1 in the present embodiment is 4mm, the appearance of the upside in support construction portion 1
The intermediate position in face is higher, left and right sides position is lower, and arc-shaped curved surface is arranged, and belongs to and meets the outer of the physiology curved surface between cone
Surface.Corresponding, the intermediate position of the outer surface of the downside in support construction portion 1 is downwardly projecting more, left and right sides position
Less, and also arc-shaped curved surface setting is protruded, the outer surface for meeting the physiology curved surface between cone is belonged to.
(application examples 1)
As shown in Figure 1, the Invasive lumbar fusion device of the application example is by 3D printer by titanium alloy material one printing shaping
Structural member.The fusion device is divided into support construction portion 1 and pore structure portion 2 according to the difference of role.Support construction portion 1 with
Pore structure portion 2 is mutually fixed together in integrated.Support construction portion 1 is for undertaking external load, pore structure portion 2
For guiding new Bone Ingrowth；The volume in support construction portion 1 accounts for the 10% of fusion device total volume.
As described in Figure 2, the structure that the support construction portion 1 is described using embodiment 1.
See Fig. 5 and Fig. 6, the gap structure portion 2 in the application example is by being substantially in the diamond lattic structure of positive tetrahedron structure
Cell voids combine and constitute, be connected between cell voids according to the connection type of carbon atom in diamond lattic structure.Wherein, structure
The titanium column 21 by the identical cuboid columnar of 4 root long degree of unit is connected and composed according in the structure of positive tetrahedron, namely each
The mutual angle of titanium column 21 is 109 degree 28 and divides.The length of every titanium column 21 is 0.5mm, and width and thickness is 0.2mm.
The porosity in gap structure portion 2 is 80%.Connection type in this way between cell voids according to carbon atom in diamond structures is similar
Connection type design, to assign the POROUS TITANIUM with certain elasticity, enough osseointegration characters by conventional titanium alloy fusion device
(referring to that the bone by titanium and patient is combined together, the compatible performance of both osteocyte and titanium) and PEEK material fusion device
Low elastic modulus is integrated in one, and compensates for conventional titanium alloy alloy fusion device and the respective deficiency of PEEK material fusion device.
The specific implementation step for preparing the fusion device of above structure is as follows:
1. the configuration design of Invasive lumbar fusion device is carried out using CAD (CAD) software, it can be with people's vertebra
The anatomical contours of body match；The CAD software is Unigraphics, Pro/E, Solidworks etc..
2. designing matching mechanical support structure in fusion device appearance profile, 1 support construction volume of the present embodiment
The 10% of fusion device total volume is accounted for, mechanical support structure CAD data are stored with independent STL data format.
3. designing micropore structure in the remaining space of removal mechanical support structure, pore-size is 200 μm, micro-
View hole gap structure CAD data is stored with independent STL data format.
4. it is soft that the STL data of mechanical support structure and micropore structure STL data are directed respectively into hierarchy slicing processing
Part, and relative tertiary location when mechanics support construction and micropore structure design is kept then to handle using hierarchy slicing
Software carries out hierarchy slicing processing to mechanical support structure and micropore structure STL data, be converted into respectively two it is independent
2-D data message file.
5. mechanical support structure and micropore structure two independent 2-D data message files are imported 3D printing to set
Standby control software, relative tertiary location when mechanics support construction and micropore structure being kept to design, is arranged corresponding 3D and beats
Print technological parameter.
6. carrying out integrated 3D printing production using titanium alloy powder as raw material, obtaining POROUS TITANIUM Invasive lumbar fusion device.
Wherein, corresponding to the 3D printing manufacture craft parameter of mechanical support structure are as follows: the power of laser is 160W, scanning speed
Degree is 1000mm/s, and powdering is with a thickness of 0.02mm, sweep span: 80 μm.Corresponding to micropore structure 3D printing manufacture craft
Parameter are as follows: the power of laser is 100W；Scanning speed is 200mm/s；Powdering is with a thickness of 0.02mm；Sweep span: 160 μm.It adopts
With this process design parameter, two kinds of structures can be made not only to be individually present but also cooperate, form the more of complete composite construction
Hole titanium Invasive lumbar fusion device.
Claims (3)
1. a kind of support construction portion of POROUS TITANIUM Invasive lumbar fusion device, for by 3D printer by titanium alloy material one printing shaping
Fusion device a part, the support construction portion (1) being mutually fixed together in integrated with pore structure portion (2) is used for
Undertake external load；It is characterized by: support construction portion (1) is centrally located, and pore structure portion (2) then setting is supporting
Most of region on the periphery of structural portion (1) position；Upside, downside, front side, rear side and the right side in support construction portion (1) are in opening
Formula to exposing outside, and front side, rear side and right side all have the cylindrical open space of triangle；Support construction portion (1) packet
Include the mounting portion (11) being sequentially connected, left support (12), interconnecting piece (13) and right support (14)；Mounting portion (11) is equipped with a pair of point
The instrument hole being located among a pair of of slot device of the slot device (11-1) of front and back setting and an edge or so to setting
(11-2)；Left support (12) and right support (14) are all made of a pair of of four-bladed vane structure of distribution setting up and down and by standing accordingly
The connected structure of column, is connected between left support (12) and right support (14) by interconnecting piece (13)；
The interconnecting piece (13) in the support construction portion (1) includes front column (13-1), rear column (13-2), upper beam (13-3)
With lower beam (13-4)；Pass through upper beam (13-3) and lower beam (13-4) phase between front column (13-1) and rear column (13-2)
Even；
Left support (12) has upper left frame (12-1), lower-left frame (12-2) and left column (12-3)；Left column (12-3) is even
It connects between upper left frame (12-1) and lower-left frame (12-2)；Upper left frame (12-1) and lower-left frame (12-2) are in four-bladed vane structure,
And simultaneously in from left front to behind the right side and from the left back intersection construction setting to before the right side, and left column (12-3) is located at upper left
At frame (12-1) and lower-left frame (12-2) respective crossover sites；
The rear and front end in the left side of upper left frame (12-1) is connected with the right side on the top of mounting portion (11), a left side for lower-left frame (12-2)
The rear and front end of side is connected with the right side of the lower part of mounting portion (11)；The right side front and front column (13-1) of upper left frame (12-1)
Upper left-hand be connected, the right side rear end of upper left frame (12-1) is connected with the upper left-hand of rear column (13-2)；Lower-left frame (12-
2) front end on right side is connected with the lower left side of front column (13-1), the rear end on the right side of lower-left frame (12-2) and rear column
The lower left side of (13-2) is connected；So that the front and rear sides of left support (12) all have the cylindrical open space of triangle；
Right support (14) has upper right frame (14-1), bottom right frame (14-2) and right central post (14-3)；Right central post (14-3) is even
It connects between upper right frame (14-1) and bottom right frame 14-2；Upper right frame (14-1) and bottom right frame (14-2) they are in four-bladed vane structure, and
Simultaneously in from left front to behind the right side and from the left back intersection construction setting to before the right side, and right central post (14-3) is located at upper right frame
At (14-1) and bottom right frame (14-2) respective crossover sites；
The front end in the left side of upper right frame (14-1) is connected with the upper right of front column (13-1), the left side of upper right frame (14-1)
Rear end is connected with the upper right of rear column (13-2)；The front end in the left side of bottom right frame (14-2) and the lower part of front column (13-1)
Right side is connected, and is connected on the right side of the rear end in the left side of bottom right frame (14-2) and the lower part of rear column (13-2)；So that right support
(14) front and rear sides and right side all have the cylindrical open space of triangle.
2. the support construction portion of POROUS TITANIUM Invasive lumbar fusion device according to claim 1, it is characterised in that: the support knot
Structure portion (1) is additionally provided with right front column (15) and right rear column (16)；Before right front column (15) is connected to the right side of upper right frame (14-1)
Between end and the right front ends of bottom right frame (14-2), right rear column (16) is connected to the right rear end and bottom right frame of upper right frame (14-1)
Between the right rear end of (14-2).
3. POROUS TITANIUM Invasive lumbar fusion device according to claim 1, it is characterised in that: the length in the support construction portion (1)
Degree L is 22mm to 36mm, and wide W is 8mm to 14mm, and height H is 3mm to 18mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710000046.7A CN106510906B (en) | 2017-01-01 | 2017-01-01 | The support construction portion of POROUS TITANIUM Invasive lumbar fusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710000046.7A CN106510906B (en) | 2017-01-01 | 2017-01-01 | The support construction portion of POROUS TITANIUM Invasive lumbar fusion device |
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| CN106510906A CN106510906A (en) | 2017-03-22 |
| CN106510906B true CN106510906B (en) | 2019-01-25 |
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| CN107280824A (en) * | 2017-05-12 | 2017-10-24 | 武汉理工大学 | A kind of bionical artificial spinal prosthesis with flange |
| CN108175544A (en) * | 2018-01-25 | 2018-06-19 | 北京中安泰华科技有限公司 | 3D printing self-locking anatomical form artificial vertebral body and manufacture craft |
| CN108670504B (en) * | 2018-04-16 | 2021-04-30 | 华中科技大学同济医学院附属同济医院 | Personalized artificial vertebral body implant based on additive manufacturing and design method thereof |
| CN210644254U (en) * | 2018-06-12 | 2020-06-02 | 深圳市立心科学有限公司 | Intervertebral fusion device with buffer part |
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| ATE305276T1 (en) * | 1999-10-20 | 2005-10-15 | Sdgi Holdings Inc | IMMEDIATE ORTHOPEDIC BONE SUPPORT IMPLANT |
| US20060036251A1 (en) * | 2004-08-09 | 2006-02-16 | Reiley Mark A | Systems and methods for the fixation or fusion of bone |
| CN109157311B (en) * | 2014-07-27 | 2020-09-15 | 温州医科大学附属第二医院、温州医科大学附属育英儿童医院 | Minimally invasive implantation shape memory interbody fusion cage |
| CN105581860A (en) * | 2016-01-11 | 2016-05-18 | 李鹏 | 3D print type artificial bone trabecula structure cervical fusion device and preparing method and application thereof |
| CN105559950B (en) * | 2016-02-03 | 2018-02-02 | 北京纳通科技集团有限公司 | Fusion device |
| CN205515050U (en) * | 2016-03-04 | 2016-08-31 | 常州华森医疗器械有限公司 | Zero notch interbody fusion cage on porous titanium alloy people throat way |
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