CN103788581B - 3D prints people's bone model medical material and preparation method thereof - Google Patents
3D prints people's bone model medical material and preparation method thereof Download PDFInfo
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- CN103788581B CN103788581B CN201410045791.XA CN201410045791A CN103788581B CN 103788581 B CN103788581 B CN 103788581B CN 201410045791 A CN201410045791 A CN 201410045791A CN 103788581 B CN103788581 B CN 103788581B
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- medical material
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- 210000000988 bone and bone Anatomy 0.000 title claims abstract description 30
- 239000012567 medical material Substances 0.000 title claims abstract description 30
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 20
- 239000000843 powder Substances 0.000 claims abstract description 15
- 238000010146 3D printing Methods 0.000 claims abstract description 10
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims abstract description 6
- 229910052751 metal Inorganic materials 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims abstract description 5
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 4
- 239000000314 lubricant Substances 0.000 claims abstract description 3
- 238000012216 screening Methods 0.000 claims description 14
- -1 polydimethylsiloxane Polymers 0.000 claims description 10
- 150000001875 compounds Chemical class 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- 239000004743 Polypropylene Substances 0.000 claims description 4
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 claims description 4
- 229920001155 polypropylene Polymers 0.000 claims description 4
- DMYOHQBLOZMDLP-UHFFFAOYSA-N 1-[2-(2-hydroxy-3-piperidin-1-ylpropoxy)phenyl]-3-phenylpropan-1-one Chemical compound C1CCCCN1CC(O)COC1=CC=CC=C1C(=O)CCC1=CC=CC=C1 DMYOHQBLOZMDLP-UHFFFAOYSA-N 0.000 claims description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 2
- 229920000459 Nitrile rubber Polymers 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 2
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 2
- 229920002492 poly(sulfone) Polymers 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- 229920000570 polyether Polymers 0.000 claims description 2
- 229920006393 polyether sulfone Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 8
- 238000007639 printing Methods 0.000 abstract description 8
- 238000007493 shaping process Methods 0.000 abstract description 7
- 239000003822 epoxy resin Substances 0.000 abstract description 6
- 229920000647 polyepoxide Polymers 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract 2
- 239000004408 titanium dioxide Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000010440 gypsum Substances 0.000 description 5
- 229910052602 gypsum Inorganic materials 0.000 description 5
- 238000000465 moulding Methods 0.000 description 4
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000002059 diagnostic imaging Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/875—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling for achieving a non-uniform temperature distribution, e.g. using barrels having both cooling and heating zones
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
Abstract
The present invention relates to 3D printing shaping field of material technology, especially relate to a kind of 3D and print people's bone model medical material and preparation method thereof, 3D prints people's bone model medical material, comprise the following component counted by weight: epoxy resin 15-35%, flow agent 0.2-1%, toughner 1-8%, lubricant 1-5%, titanium dioxide 5-10%, metal powder 0.1-2%, surplus is terra alba.3D of the present invention prints people's bone model medical material, and the physical components cost printed with it is low, and printing precision is high, cohesive strength and firmness higher; Can be used for printing the patient model of 3D, by simulating on model, and then determine feasible operation plan, the success ratio of operation can be provided to a great extent; 3D of the present invention prints the preparation method of people's bone model medical material, and its forming method is simple, convenient operation, and material source scope is wide.
Description
Technical field
The present invention relates to 3D printing shaping field of material technology, especially relate to a kind of 3D and print people's bone model medical material and preparation method thereof.
Background technology
3D prints (3D printing), the i.e. one of rapid shaping technique, and it is a kind of based on digital model file, uses powdery metal or plastics etc. can jointing material, is carried out the technology of constructed object by the mode successively printed.
3D printing technique, design a model as source with Computerized three-dimensional, discrete and the numerical control molding system by software hierarchy, utilize the mode such as laser beam, hot melt nozzle successively to be piled up by the exotic materialss such as metal-powder, ceramic powder, plastics, cell tissue to cohere, final superposition is shaping, produces entity products.Starting material are shaped by the mechanical workout such as mould, turnning and milling mode from traditional manufacture, cut with final production finished product different, 3D prints and 3D solid is become several two dimensional surfaces, producing by also successively superposing material processing, greatly reducing the complexity of manufacture.This Digitized manufacturing pattern does not need complicated technique, does not need huge lathe, does not need numerous manpowers, from computer graphics data, directly just can generate the part of any shape, make the manufacturing be able to extend to wider production crowd scope.
Along with the development of 3D printing technique, its range of application is more and more extensive, particularly in medical field.The medical use that 3D prints is a lot, mainly complicated orthopaedics and dental operation.The complexity of this body structure of human body often exceeds our imagination, sometimes surgeon, to the operation of some complexity, often can only carry out possible judgement by the Medical Imaging such as CT, nucleus magnetic resonance data, and then perform the operation, but sometimes, complexity exceeds the imagination, and success rate of operation is low.But 3D printing technique, can utilize existing medical image data, the patient model first printing a 3D out, by simulating on model, and then being determined feasible operation plan, can be provided the success ratio of operation to a great extent.
But restriction 3D prints the printed material that universal principal element is its costliness at present.Require that the precision printed is higher, the faster requirement to material of speed is also more different.The price of material from 700-800 unit per kilogram, to several thousand per kilograms not etc.So the cost of self machine of 3D printer not only will be reduced in the future development of 3D printer, also material cost must be reduced, although there has been now the 3D printer adopting terra alba as printed material on the market, the precision that it can be worked it out has been had a greatly reduced quality.
Summary of the invention
The object of the invention is to the defect overcoming prior art, provide a kind of 3D to print people bone model medical material and preparation method thereof, the physical components cost printed with it is low, and printing precision is high, cohesive strength and firmness higher; Its forming method is simple, and material source scope is wide.
The technical solution adopted for the present invention to solve the technical problems is: 3D prints people's bone model medical material, comprises the following component counted by weight:
Particularly, described terra alba fineness is 800 orders.In order to ensure to use the 3D moulding that 3D of the present invention printing people bone model medical material prints to have higher precision, the fineness of terra alba is more thin better.
Particularly, the epoxy equivalent (weight) of described oxyethane is the bisphenol A type epoxy resin of 600-1500.Because epoxy resin possesses good cohesive force, hardness, snappiness and the good wettability to gypsum, epoxy resin is used to bond to gypsum, make gypsum in the moulding of final 3D printing shaping by good bonding, and drastically increase adhesive fastness and the intensity of parts, there is the phenomenon of delamination hardly.
Particularly, described flow agent is the one in acrylate, polydimethylsiloxane and polyether polyester modified organic silicon oxygen alkane.Flow agent is mainly used for the surface tension of the gypsum material system reducing 3D printing shaping, improves epoxy resin to the wettability of gypsum surface.
Particularly, described toughner is the one in dibutyl phthalate, carboxyl liquid acrylonitrile butadiene rubber, thiorubber, polyethers and polysulfones.Toughner is mainly used for regulating the interaction force between printing system epoxy resin molecular chain, to improve the snappiness of the moulding of 3D printing shaping, improves its impact strength.
Particularly, described lubricant is the one in polyethylene wax, Poly Propylene Wax, polytetrafluoroethylmodified modified Poly Propylene Wax.
Particularly, described metal powder is the one of copper powder, aluminium powder and magnesium powder, and the particle diameter of metal powder particle is less than 800 orders.
3D prints the preparation method of people's bone model medical material, by above-mentioned formula by after predetermined proportion batching, put into mixing machine fully dispersed with stirring, melt extruded by twin screw extruder by the compound mixed, district's temperature of twin screw extruder controls: 160 ± 2 DEG C; Two district's temperature control: 165 ± 2 DEG C; Three district's temperature control: 170 ± 2 DEG C; Four district's temperature control: 165 ± 2 DEG C; Material after extruding is put into crusher for crushing, screening, and screening fineness is more than or equal to 200 object powder.
The invention has the beneficial effects as follows: 3D provided by the invention prints people's bone model medical material, and the physical components cost printed with it is low, and printing precision is high, cohesive strength and firmness higher; Can be used for printing the patient model of 3D, by simulating on model, and then determine feasible operation plan, the success ratio of operation can be provided to a great extent.
3D provided by the invention prints the preparation method of people's bone model medical material, and its forming method is simple, convenient operation, and material source scope is wide.
Embodiment
Below in conjunction with specific embodiment, further the present invention is set forth, should be understood that and quote embodiment only for illustration of the present invention, and be not used in and limit the scope of the invention.
Embodiment 1
3D prints people's bone model medical material, comprises the following component counted by weight:
3D prints the preparation method of people's bone model medical material:
By above-mentioned formula by after predetermined proportion batching, put into mixing machine fully dispersed with stirring, melt extruded by twin screw extruder by the compound mixed, district's temperature of twin screw extruder controls: 160 ± 2 DEG C; Two district's temperature control: 165 ± 2 DEG C; Three district's temperature control: 170 ± 2 DEG C; Four district's temperature control: 165 ± 2 DEG C; Material after extruding is put into crusher for crushing, screening, and screening fineness is 200 object powder.
Embodiment 2
3D prints people's bone model medical material, comprises the following component counted by weight:
3D prints the preparation method of people's bone model medical material:
By above-mentioned formula by after predetermined proportion batching, put into mixing machine fully dispersed with stirring, melt extruded by twin screw extruder by the compound mixed, district's temperature of twin screw extruder controls: 160 ± 2 DEG C; Two district's temperature control: 165 ± 2 DEG C; Three district's temperature control: 170 ± 2 DEG C; Four district's temperature control: 165 ± 2 DEG C; Material after extruding is put into crusher for crushing, screening, and screening fineness is 400 object powder.
Embodiment 3
3D prints people's bone model medical material, comprises the following component counted by weight:
3D prints the preparation method of people's bone model medical material:
By above-mentioned formula by after predetermined proportion batching, put into mixing machine fully dispersed with stirring, melt extruded by twin screw extruder by the compound mixed, district's temperature of twin screw extruder controls: 160 ± 2 DEG C; Two district's temperature control: 165 ± 2 DEG C; Three district's temperature control: 170 ± 2 DEG C; Four district's temperature control: 165 ± 2 DEG C; Material after extruding is put into crusher for crushing, screening, and screening fineness is 600 object powder.
Embodiment 4
3D prints people's bone model medical material, comprises the following component counted by weight:
3D prints the preparation method of people's bone model medical material:
By above-mentioned formula by after predetermined proportion batching, put into mixing machine fully dispersed with stirring, melt extruded by twin screw extruder by the compound mixed, district's temperature of twin screw extruder controls: 160 ± 2 DEG C; Two district's temperature control: 165 ± 2 DEG C; Three district's temperature control: 170 ± 2 DEG C; Four district's temperature control: 165 ± 2 DEG C; Material after extruding is put into crusher for crushing, screening, and screening fineness is 300 object powder.
Embodiment 5
3D prints people's bone model medical material, comprises the following component counted by weight:
3D prints the preparation method of people's bone model medical material:
By above-mentioned formula by after predetermined proportion batching, put into mixing machine fully dispersed with stirring, melt extruded by twin screw extruder by the compound mixed, district's temperature of twin screw extruder controls: 160 ± 2 DEG C; Two district's temperature control: 165 ± 2 DEG C; Three district's temperature control: 170 ± 2 DEG C; Four district's temperature control: 165 ± 2 DEG C; Material after extruding is put into crusher for crushing, screening, and screening fineness is 200 object powder.
With above-mentioned according to desirable embodiment of the present invention for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this invention technological thought, can carry out various change and amendment completely.The technical scope of this invention is not limited to the content on specification sheets, must determine its technical scope according to right.
Claims (7)
1. 3D prints people's bone model medical material, it is characterized in that comprising the following component counted by weight:
Surplus is terra alba.
2. 3D as claimed in claim 1 prints people's bone model medical material, it is characterized in that: described terra alba fineness is 800 orders.
3. 3D as claimed in claim 1 prints people's bone model medical material, it is characterized in that: described flow agent is the one in acrylate, polydimethylsiloxane and polyether polyester modified organic silicon oxygen alkane.
4. 3D as claimed in claim 1 prints people's bone model medical material, it is characterized in that: described toughner is the one in dibutyl phthalate, carboxyl liquid acrylonitrile butadiene rubber, thiorubber, polyethers and polysulfones.
5. 3D as claimed in claim 1 prints people's bone model medical material, it is characterized in that: described lubricant is the one in polyethylene wax, Poly Propylene Wax, polytetrafluoroethylmodified modified Poly Propylene Wax.
6. 3D as claimed in claim 1 prints people's bone model medical material, it is characterized in that: described metal powder is the one of copper powder, aluminium powder and magnesium powder.
7. the preparation method of the 3D printing people bone model medical material as described in any one of claim 1-6, it is characterized in that: by above-mentioned formula by after predetermined proportion batching, put into mixing machine fully dispersed with stirring, melt extruded by twin screw extruder by the compound mixed, district's temperature of twin screw extruder controls at 160 ± 2 DEG C; Two district's temperature control at 165 ± 2 DEG C; Three district's temperature control at 170 ± 2 DEG C; Four district's temperature control at 165 ± 2 DEG C; Material after extruding is put into crusher for crushing, screening, and screening fineness is more than or equal to 200 object powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410045791.XA CN103788581B (en) | 2014-02-08 | 2014-02-08 | 3D prints people's bone model medical material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410045791.XA CN103788581B (en) | 2014-02-08 | 2014-02-08 | 3D prints people's bone model medical material and preparation method thereof |
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| Publication Number | Publication Date |
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| CN103788581A CN103788581A (en) | 2014-05-14 |
| CN103788581B true CN103788581B (en) | 2015-10-28 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104230289B (en) * | 2014-09-02 | 2016-08-17 | 王娟 | A kind of 3D prints compositions and its production and use |
| CN104269092B (en) * | 2014-09-19 | 2016-05-25 | 成都学创伟业科技有限公司 | The auxiliary skeleton model preparation method of operation |
| CN106178097A (en) * | 2014-11-07 | 2016-12-07 | 吴昊 | Preferable biomedical metallic material of antibacterial ability and preparation method thereof |
| CN104402381A (en) * | 2014-11-19 | 2015-03-11 | 湖南盈博数码科技产业发展有限公司 | Industrial-grade 3D printer composite powder material and preparation method thereof |
| CN105462177B (en) * | 2016-01-07 | 2018-02-06 | 广东美特家家居用品有限公司 | A kind of heat-resistant fireproof bamboo-plastic composite material and preparation method thereof |
| CN105670278A (en) * | 2016-02-03 | 2016-06-15 | 黑龙江鑫达企业集团有限公司 | Metal and PA-12 composite material for 3D printing and preparation method of metal and PA-12 composite material |
| CN107473683A (en) * | 2017-09-06 | 2017-12-15 | 王明江 | A kind of 3D printing material for handicraft shaping |
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| CN1418245A (en) * | 2000-11-17 | 2003-05-14 | 有限会社环境设备研究所 | Coating responding to visible light, coating film and article |
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| CN101862230A (en) * | 2009-04-17 | 2010-10-20 | 华中科技大学同济医学院附属协和医院 | Controlled-release multilayer drug-loaded artificial bone and preparation method thereof |
| WO2013043908A1 (en) * | 2011-09-20 | 2013-03-28 | The Regents Of The University Of California | 3d printing powder compositions and methods of use |
| RU2494991C1 (en) * | 2012-03-05 | 2013-10-10 | Открытое акционерное общество "Технологическое оснащение" | Model material |
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- 2014-02-08 CN CN201410045791.XA patent/CN103788581B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1418245A (en) * | 2000-11-17 | 2003-05-14 | 有限会社环境设备研究所 | Coating responding to visible light, coating film and article |
| US6602924B1 (en) * | 2002-04-23 | 2003-08-05 | Jin-Chih Chiang | Foamed gypsum compositions |
| CN101862230A (en) * | 2009-04-17 | 2010-10-20 | 华中科技大学同济医学院附属协和医院 | Controlled-release multilayer drug-loaded artificial bone and preparation method thereof |
| WO2013043908A1 (en) * | 2011-09-20 | 2013-03-28 | The Regents Of The University Of California | 3d printing powder compositions and methods of use |
| RU2494991C1 (en) * | 2012-03-05 | 2013-10-10 | Открытое акционерное общество "Технологическое оснащение" | Model material |
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