CN117885176A - Magnetic ceramic support and manufacturing device and manufacturing method thereof - Google Patents
Magnetic ceramic support and manufacturing device and manufacturing method thereof Download PDFInfo
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- CN117885176A CN117885176A CN202410054899.9A CN202410054899A CN117885176A CN 117885176 A CN117885176 A CN 117885176A CN 202410054899 A CN202410054899 A CN 202410054899A CN 117885176 A CN117885176 A CN 117885176A
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- 230000005291 magnetic effect Effects 0.000 title claims abstract description 214
- 239000000919 ceramic Substances 0.000 title claims abstract description 143
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 82
- 238000000034 method Methods 0.000 claims abstract description 23
- 238000001338 self-assembly Methods 0.000 claims abstract description 8
- 230000005389 magnetism Effects 0.000 claims abstract description 6
- 239000011241 protective layer Substances 0.000 claims abstract 2
- 239000000463 material Substances 0.000 claims description 42
- 238000004140 cleaning Methods 0.000 claims description 35
- 239000000696 magnetic material Substances 0.000 claims description 26
- 238000001035 drying Methods 0.000 claims description 25
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 22
- 229910010293 ceramic material Inorganic materials 0.000 claims description 18
- 238000001816 cooling Methods 0.000 claims description 15
- 238000003837 high-temperature calcination Methods 0.000 claims description 12
- 230000007246 mechanism Effects 0.000 claims description 12
- 239000012620 biological material Substances 0.000 claims description 10
- 238000001354 calcination Methods 0.000 claims description 10
- 239000002994 raw material Substances 0.000 claims description 8
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 239000001506 calcium phosphate Substances 0.000 claims description 3
- 239000000378 calcium silicate Substances 0.000 claims description 3
- 229910052918 calcium silicate Inorganic materials 0.000 claims description 3
- 229960003340 calcium silicate Drugs 0.000 claims description 3
- 235000012241 calcium silicate Nutrition 0.000 claims description 3
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 claims description 3
- KMQAPZBMEMMKSS-UHFFFAOYSA-K calcium;magnesium;phosphate Chemical compound [Mg+2].[Ca+2].[O-]P([O-])([O-])=O KMQAPZBMEMMKSS-UHFFFAOYSA-K 0.000 claims description 3
- 239000003302 ferromagnetic material Substances 0.000 claims description 3
- 229910052588 hydroxylapatite Inorganic materials 0.000 claims description 3
- 230000005415 magnetization Effects 0.000 claims description 3
- XYJRXVWERLGGKC-UHFFFAOYSA-D pentacalcium;hydroxide;triphosphate Chemical compound [OH-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O XYJRXVWERLGGKC-UHFFFAOYSA-D 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 3
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 claims description 3
- 229940078499 tricalcium phosphate Drugs 0.000 claims description 3
- 229910000391 tricalcium phosphate Inorganic materials 0.000 claims description 3
- 235000019731 tricalcium phosphate Nutrition 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 2
- 239000010410 layer Substances 0.000 claims 14
- 239000011149 active material Substances 0.000 claims 2
- 238000007493 shaping process Methods 0.000 claims 1
- 210000000988 bone and bone Anatomy 0.000 description 37
- 230000007547 defect Effects 0.000 description 26
- 230000008439 repair process Effects 0.000 description 14
- 230000007306 turnover Effects 0.000 description 12
- 230000008569 process Effects 0.000 description 10
- 230000000975 bioactive effect Effects 0.000 description 5
- 208000027418 Wounds and injury Diseases 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000002059 diagnostic imaging Methods 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
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- 230000032683 aging Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
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Abstract
The invention discloses a magnetic ceramic bracket and a manufacturing device and a manufacturing method thereof. The magnetic ceramic bracket manufacturing device comprises: the device comprises a bracket manufacturing module, a bracket secondary treatment module, a control module and a bracket transportation module; the control module controls the operation of the bracket manufacturing module, the bracket secondary processing module and the bracket transportation module, and the modules are connected in a seamless manner; the bracket manufacturing module is a first procedure; the second working procedure is that the bracket secondary treatment module is positioned behind the bracket manufacturing module; the support transportation module and the support manufacturing module, the support secondary treatment module, and the support is transported adjacently according to the sequence of the working procedures. The invention realizes the mass production of the magnetic ceramic bracket semi-automatically. In addition, the protective layer structure of the magnetic ceramic bracket can protect the magnetic property of the bracket. During operation, the self-assembly of the magnetic ceramic bracket can be realized by means of the magnetism of the magnetic ceramic bracket; the magnetic ceramic bracket can be controlled by an external magnetic field to realize the controllable assembly.
Description
Technical Field
The invention relates to the technical field of magnetic ceramic support manufacturing, in particular to a magnetic ceramic support, and a manufacturing device and a manufacturing method thereof.
Background
With the aggravation of the aging society, the number of patients with bone defects is gradually increasing year by year, and the bone defect repair problem is becoming more prominent nowadays. The bone repair stent has good bioactivity and degradability and can promote bone tissue regeneration, and is an optimal solution to the bone defect repair problem.
Most of the existing bone repair stents are manufactured integrally, and in clinical application, a patient bone defect part model is firstly required to be scanned and rebuilt, then the bone repair stent is manufactured, and the bone repair stent is implanted into a human body through an operation after the manufacturing is finished, so that the treatment of the patient is definitely delayed, and the patient is easy to miss the optimal operation time. On the other hand, the structural change of the bone repair stent needs to be approved by related departments for the medical implant, and the approval time is long, which brings great trouble to patients and doctors. There is an urgent need for a bone repair scaffold that can be modularized, standardized, and self-assembled, and on the other hand, there is no manufacturing apparatus that can mass-produce such bone repair scaffolds with high efficiency.
Therefore, there is a need for a magnetic ceramic stent, a manufacturing apparatus and a manufacturing method thereof, wherein the magnetic ceramic stent can realize self-assembly of a plurality of magnetic ceramic stents by means of self magnetism, can be prepared into magnetic ceramic stents with various shapes and sizes in advance, and then can be transplanted into a bone defect part of a patient after being assembled into the bone defect shape of the patient on site, and can also be controllably assembled in the patient by utilizing an external magnetic field; the manufacturing device can realize the standardized and automatic manufacturing of the magnetic ceramic bracket, ensures the quality of the bracket, has higher manufacturing efficiency, and can be applied to mass production.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the prior art and providing a magnetic ceramic bracket manufacturing device.
In order to achieve the above purpose, the invention adopts the following technical scheme:
A magnetic ceramic stent fabrication apparatus comprising: a bracket manufacturing module 1, a bracket secondary treatment module 3, a control module 2 and a bracket transportation module 4; the control module 2 is used for controlling the operation of the bracket manufacturing module 1, the bracket secondary processing module 3 and the bracket transportation module 4;
The products obtained by processing the bracket manufacturing module 1 enter the bracket secondary processing module 3 for further processing through the transportation of the bracket transportation module 4;
The bracket manufacturing module 1 comprises a multi-material three-dimensional printer 11 and a feeding area 12; the feeding area 12 is positioned at the inlet of the multi-material three-dimensional printer 11, raw materials for manufacturing the magnetic ceramic bracket 5 enter the multi-material three-dimensional printer 11 through the feeding area 12, and after being printed by the multi-material three-dimensional printer 11, a product obtained by processing of the bracket manufacturing module 1 is obtained;
The bracket secondary treatment module 3 comprises an absolute ethyl alcohol cleaning unit 31, a drying unit 32, a high-temperature calcining unit 33, a cooling unit 34 and a magnetizing unit 35, wherein a product obtained by processing the bracket manufacturing module 1 sequentially enters the absolute ethyl alcohol cleaning unit 31, the drying unit 32, the high-temperature calcining unit 33, the cooling unit 34 and the magnetizing unit 35 for treatment to obtain a magnetic ceramic bracket 5;
The magnetic ceramic support 5 comprises a magnetic unit and a porous layer 53;
The magnetic unit comprises a magnetic layer 52 and a magnetic protection layer 51, wherein the magnetic protection layer 51 is wrapped outside the magnetic layer 52;
The magnetic unit is used for generating magnetic attraction force to enable the magnetic ceramic support 5 to be magnetically connected with the magnetic ceramic support 5 adjacent to the magnetic ceramic support 5;
the magnetic unit is used for enabling the magnetic ceramic support 5 to adjust the space position of the magnetic ceramic support 5 under the action of an external magnetic field.
Further, the raw materials are biological ceramic ink and magnetic ceramic ink, the biological ceramic ink consists of biological materials and photosensitive resin, and the biological materials in the biological ceramic ink have the mass percentage content of 50% -60%; the magnetic ceramic ink consists of a biological material, a magnetic material and photosensitive resin, wherein the mass percentage of the biological material is 40% -50%, and the mass percentage of the magnetic material is 10% -20%.
Still further, the biological material includes a bioactive material and a biologically inert material, the bioactive material being any one or more combinations of calcium magnesium phosphate, calcium silicate, tricalcium phosphate, and hydroxyapatite; the biological inert material is any one or more of combination of alumina, zirconia and silicon nitride, and the magnetic material is ferromagnetic material.
Preferably, the multi-material three-dimensional printer 11 includes a holder 115,
Two DLP projectors 1110 are mounted on the fixing frame 115;
The fixing frame 115 is also provided with a ceramic material trough 117 and a magnetic material trough 119, and the ceramic material trough 117 and the magnetic material trough 119 are respectively positioned right above the two DLP projectors 1110;
A cleaning tank 118 is also installed on the fixing frame 115; the cleaning tank 118 is located between the ceramic material tank 117 and the magnetic material tank 119, and a vibration motor 1111 is installed at the bottom of the cleaning tank 118, and is used for cleaning the printed matter in cooperation with the cleaning tank 118;
Two scrapers 116 are also mounted on the fixing frame 115, and the two scrapers 116 are respectively arranged at the outer sides of a ceramic material trough 117 and a magnetic material trough 119;
The fixing frame 115 is also provided with a vertical sliding rod 112, the vertical sliding rod 112 is provided with a horizontal sliding rod 114, the horizontal sliding rod 114 is provided with a turnover mechanism 113, and the turnover mechanism 113 is fixedly provided with a forming platform 111.
During operation, a worker pours biological ceramic ink into a ceramic material trough in a feeding area, pours absolute ethyl alcohol into a cleaning trough, pours magnetic ceramic ink into a magnetic material trough, then one or more support three-dimensional models can be led into a control module, at the moment, after a multi-material three-dimensional printer is started, the control module controls a horizontal sliding rod to enable a forming platform to move to a trough of corresponding printing materials, then the vertical sliding rod drives the forming platform to automatically descend to a position 0.25mm away from the bottom of the trough, then the control module enables a corresponding DLP projector to automatically eject slice images of the models according to the controlled slicing of the support models, after the first slice is printed, the vertical sliding rod drives the forming platform to ascend to the height of the thickness of one slice, the scraper descends to a position 0.25mm away from the bottom of the trough, then the trough rotates a circle, and the scraper ascends to finish the first layer of printing of the supports; when the forming platform needs to be moved to another trough for printing, the control module firstly controls the forming platform to move to the cleaning trough, then controls the vertical sliding rod to drive the forming platform to descend so that all printing pieces are immersed in absolute ethyl alcohol, the control module starts the vibrating motor, the vibrating motor automatically stops after 20 seconds, then controls the vertical sliding rod to drive the forming platform to ascend, then controls the horizontal sliding rod to drive the forming platform to move to the trough of corresponding printing materials, the printing operation on the forming platform is repeated, each layer is solidified, the vertical sliding rod drives the forming platform and the printing pieces to ascend the height of the thickness of one slice, and the forming platform and the printing pieces are sequentially and circularly stacked layer by layer until printing is finished; after all the supports are printed, the vertical sliding rod drives the forming platform to automatically rise to the highest position, then the turnover mechanism drives the forming platform to turn over 180 degrees to enable one surface with the supports to face upwards, after all the supports are transferred to the support conveying module, the turnover mechanism drives the forming platform to turn over 180 degrees to return to the initial position, and the operation is repeated to start printing the next support.
Preferably, the rack transport module 4 includes a transfer unit 41 and two pick-up robots 42; the two pick-up robots 42 are named as a first robot and a second robot, respectively, the transfer unit 41 includes a chain conveyor 413, the chain conveyor 413 is driven by a motor 414, the chain conveyor 413 is provided with a rack tray 411,
The chain conveyor 413 is supported by a conveyor support, two positioning units 412 are fixedly mounted on the conveyor support and are respectively named as a first positioning unit and a second positioning unit, the first positioning unit and the second positioning unit are both positioned between the support manufacturing module 1 and the support secondary processing module 3, the first positioning unit is close to the support manufacturing module 1, the second positioning unit is close to the support secondary processing module 3, the first manipulator is mounted at a position corresponding to the first positioning unit, and the second manipulator is mounted at a position corresponding to the second positioning unit.
When the chain conveyor moves to the next working procedure, the positioning unit beside the pick-up manipulator closest to the working procedure automatically positions the support tray, the motor stops working, and then the pick-up manipulator picks up the support to enter the next working procedure.
Preferably, the bracket tray 411 has a groove at an upper portion thereof and a buffer block 4111 at a front portion thereof.
When in operation, the buffer block is used for being matched with the positioning unit to position the bracket tray.
Preferably, the positioning unit 412 includes a positioning cylinder 4122 fixedly mounted on the conveyor support, and a stopper 4121 movable with the piston is mounted on the positioning cylinder 4122.
When the tray is moved to the upper part of the positioning unit, the positioning cylinder on the conveyor belt bracket drives the stop block to lift through the guide rod, so that the tray is positioned beside the pick-up manipulator.
The invention also provides a magnetic ceramic stent, the magnetic ceramic stent 5 comprises a magnetic unit and a porous layer 53;
The magnetic unit comprises a magnetic layer 52 and a magnetic protection layer 51, wherein the magnetic protection layer 51 is wrapped outside the magnetic layer 52;
The magnetic ceramic support 5 is of a polyhedral structure, the magnetic units are positioned on the surface of the porous layer 53, the thickness of the magnetic layer 52 is 0.5-2 mm, and the area of the magnetic units accounts for 20-50% of the area of the surface where the magnetic units are positioned; the thickness of the magnetic protection layer 51 is 0.25 mm-0.5 mm, the magnetic layer 52 and the porous layer 53 are porous structures, the porosity is 48% -54%, and the pore diameter is 300-500 μm.
The invention also provides a manufacturing method of the magnetic ceramic bracket, which adopts the magnetic ceramic bracket manufacturing device and comprises the following steps:
Designing a bracket model, carrying out layering slicing treatment on a three-dimensional structure model to be manufactured by layering software, controlling the multi-material three-dimensional printer 11 to print a bracket by the control module 2 after raw materials are added into the feeding area 12 of the bracket manufacturing module 1, transporting the bracket to the bracket secondary treatment module 3 through the bracket transporting module 4 after printing is finished, and sequentially carrying out absolute ethyl alcohol cleaning, drying, high-temperature calcination, cooling and magnetization on the bracket to obtain the magnetic ceramic bracket 5; the manufactured magnetic ceramic bracket 5 realizes the self-assembly of the magnetic ceramic bracket 5 by means of self magnetism; the magnetic ceramic bracket 5 can also be controlled by using an external magnetic field to realize the controllable assembly.
During operation, the control module controls the pick-up manipulator beside the support secondary treatment module to put the support into absolute ethyl alcohol for cleaning, the support is put into the drying box for drying after the support is cleaned for 3 minutes, the support is put into the calciner for high-temperature calcination after the drying is completed, the support is taken out for cooling after the high-temperature calcination is completed, and the cooled magnetic ceramic support is magnetized.
Further, the drying temperature is 50-60 ℃, the drying time is 6-9 hours, the high-temperature calcining temperature is 1000-1040 ℃, and the high-temperature calcining time is 3-5 hours.
The invention is used for manufacturing a magnetic ceramic bracket, and through model design, any position of the magnetic ceramic bracket can be provided with a magnetic layer and a magnetic protection layer, and the magnetic layer can be positioned on any one or more surfaces of the magnetic ceramic bracket or can be positioned at the central part of the magnetic ceramic bracket. The shape of the magnetic layer can be set to any shape according to the requirement, the shape can be triangle, polygon, circle, etc., and the shape and the size can be set according to the required magnetic force. The magnetic force of the magnetic layers in the magnetic ceramic brackets makes the magnetic ceramic brackets attracted to each other, so that the effect of self-assembly of the magnetic ceramic brackets is realized. Meanwhile, the compact structure of the magnetic protection layer can ensure that the magnetic layer cannot be damaged due to too high degradation speed in a short time or external collision. In addition, the structure of the magnetic ceramic bracket can be personalized according to the bone defect shape of a patient so as to ensure the accuracy and suitability of the bracket splicing, and the shape of the magnetic ceramic bracket can be triangle, polygon, circle and the like. Meanwhile, the splicing structure of the magnetic ceramic bracket can be customized and spliced according to the bone defect shape of the patient. Compared with the prior art, the invention has the following advantages:
The magnetic ceramic bracket can be prefabricated into a plurality of magnetic ceramic brackets with different shapes and different sizes before a bone repair operation, and can be transplanted into a bone defect part of a patient after being assembled into the bone defect shape of the patient on site, and can also be controlled by an external magnetic field to realize controllable assembly in the patient, so that the time waste in the manufacturing process of the bone repair bracket can be avoided, precious time is won for the patient, and the operation success rate of the patient is improved;
the device of the invention realizes the manufacture of the magnetic ceramic bracket semi-automatically. The whole manufacturing process can finish the assembly line type bracket manufacturing process only by manually finishing the loading and unloading procedures. Compared with the traditional manufacturing mode, the process almost does not need a great deal of physical effort, so that the labor cost of factories can be greatly reduced. Meanwhile, the production quality of the magnetic ceramic bracket is ensured due to the adoption of an automatic assembly line for manufacturing. In addition, the produced magnetic ceramic bracket has a magnetic layer and a magnetic protection layer structure, so that the magnetic performance of the bracket can be effectively protected, and the self-assembly and the controllable assembly of the magnetic ceramic bracket can be realized. Meanwhile, the technology also solves the problem that the magnetic ceramic bracket cannot be produced in a large scale.
Drawings
FIG. 1 is a schematic diagram of a magnetic ceramic bracket manufacturing apparatus according to the present invention;
FIG. 2 is a schematic diagram of a multi-material three-dimensional printer according to the present invention;
FIG. 3 is a schematic front view of a multi-material three-dimensional printer of the present invention;
FIG. 4 is a schematic diagram of a transmission unit according to the present invention;
FIG. 5 is a schematic view of a rack tray according to the present invention;
FIG. 6 is a schematic view of a positioning unit according to the present invention;
FIG. 7 is a schematic flow chart of a magnetic ceramic bracket manufacturing device according to the present invention;
FIG. 8 is a schematic diagram of a magnetic ceramic stent of the present invention;
FIG. 9 is a schematic front view of a magnetic ceramic stent of the present invention;
FIG. 10 is a schematic cross-sectional view of a magnetic ceramic stent of the present invention;
FIG. 11 is a schematic view of a circular magnetic ceramic stent of the present invention;
FIG. 12 is a schematic view of a triangular magnetic ceramic stent of the present invention;
fig. 13 is a schematic view of a rectangular magnetic ceramic support structure according to the present invention.
In the figure: 1 is a bracket manufacturing module, 2 is a control module, 3 is a bracket secondary treatment module, 4 is a bracket transportation module, 5 is a magnetic ceramic bracket, 11 is a multi-material three-dimensional printer, 12 is a feeding area, 111 is a forming platform, 112 is a vertical sliding rod, 113 is a turnover mechanism, 114 is a horizontal sliding rod, 115 is a fixing frame, 116 is a scraper, 117 is a ceramic material trough, 118 is a cleaning trough, 119 is a magnetic material trough, 1110 is a DLP projector, 1111 is a vibrating motor, 31 is an absolute ethyl alcohol cleaning unit, 32 is a drying unit, 33 is a high-temperature calcining unit, 34 is a cooling unit, 35 is a magnetizing unit, 41 is a conveying unit, 42 is a pickup manipulator, 411 is a bracket tray, 412 is a positioning unit, 413 is a chain conveyor, 414 is a motor, 4111 is a buffer block, 4121 is a stop, 4122 is a positioning cylinder, 51 is a magnetic protection layer, 52 is a magnetic layer, and 53 is a porous layer.
Detailed Description
The following describes in detail the examples of the present invention, which are implemented on the premise of the technical solution of the present invention, and give detailed embodiments and specific operation procedures, but the scope of protection of the present invention is not limited to the following examples.
As shown in fig. 1, a magnetic ceramic stent manufacturing apparatus includes: a bracket manufacturing module 1, a bracket secondary treatment module 3, a control module 2 and a bracket transportation module 4; the control module 2 controls the operation of the bracket manufacturing module 1, the bracket secondary processing module 3 and the bracket transportation module 4, and the modules are connected in a seamless way; the bracket manufacturing module 1 is a first process; the second working procedure is that the bracket secondary treatment module 3 is positioned behind the bracket manufacturing module 1; the bracket transportation module 4 is adjacent to the bracket manufacturing module 1 and the bracket secondary treatment module 3, and the brackets are transported according to the sequence of the working procedures.
As shown in fig. 2 and 3, the bracket manufacturing module 1 comprises a multi-material three-dimensional printer 11 and a feeding area 12; the multi-material three-dimensional printer 11 comprises a fixing frame 115, wherein two DLP projectors 1110 are installed on the fixing frame 115; the fixing frame 115 is also provided with a ceramic material trough 117 and a magnetic material trough 119, and the ceramic material trough 117 and the magnetic material trough 119 are respectively positioned right above the two DLP projectors 1110; a cleaning tank 118 is also installed on the fixing frame 115; the cleaning tank 118 is located between the ceramic material tank 117 and the magnetic material tank 119, a vibration motor 1111 is installed at the bottom of the cleaning tank 118, and the vibration motor 1111 is started when the tank needs to be switched in the printing process, and is used for cleaning the printing piece in cooperation with the cleaning tank 118; two scrapers 116 are also mounted on the fixing frame 115, and the two scrapers 116 are respectively arranged on the outer sides of the ceramic material trough 117 and the magnetic material trough 119; a vertical sliding rod 112 is further mounted on the fixing frame 115, a horizontal sliding rod 114 is mounted on the vertical sliding rod 112, a turnover mechanism 113 is mounted on the horizontal sliding rod 114, and a forming platform 111 is fixedly mounted on the turnover mechanism 113; the feeding area 12 is positioned on the outer side of the multi-material three-dimensional printer 11.
During operation, a worker pours biological ceramic ink into a ceramic material trough 117 in a feeding area 12, pours absolute ethyl alcohol into a cleaning trough 118, pours magnetic ceramic ink into a magnetic material trough 119, then one or more support three-dimensional models can be led into a control module 2, at the moment, after starting a multi-material three-dimensional printer 11, the control module 2 controls a horizontal sliding rod 114 to enable a forming platform 111 to move to a trough of corresponding printing materials, then a vertical sliding rod 112 drives the forming platform 111 to automatically descend to a position 0.25mm away from the bottom of the trough, then the control module 2 enables a corresponding DLP projector 1110 to slice a slice image of a projection model controlled by a support model, after printing of a first layer of slice is finished, the vertical sliding rod 112 drives the forming platform 111 to ascend by the height of the thickness of one slice, a scraper 116 descends to a position 0.25mm away from the bottom of the trough, then the trough rotates for one circle, and the scraper 116 ascends to print a first layer of the support; when the forming platform 111 needs to be moved to another trough for printing, the control module 2 firstly controls the forming platform 111 to move to the cleaning trough 118, then controls the vertical sliding rod 112 to drive the forming platform 111 to descend so that all printing pieces are immersed in absolute ethyl alcohol, the control module 2 starts the vibration motor 1111, the vibration motor 1111 automatically stops after 20 seconds, then controls the vertical sliding rod 112 to drive the forming platform 111 to ascend, then controls the horizontal sliding rod 114 to drive the forming platform 111 to move to the trough of corresponding printing materials, the printing operation above is repeated, each layer is solidified, the vertical sliding rod 112 drives the forming platform 111 and the printing pieces to lift the layer thickness of one slice, and the steps are sequentially repeated circularly, and the printing is finished layer by layer until the printing is finished; after all the supports are printed, the vertical sliding rod 112 drives the forming platform 111 to automatically rise to the highest position, then the turnover mechanism 113 drives the forming platform 111 to turn 180 degrees to enable the side with the supports to face upwards, after all the supports are transferred to the support conveying module 4, the turnover mechanism 113 drives the forming platform 111 to turn 180 degrees to return to the initial position, and the operation is repeated to start printing the next support.
The biological ceramic ink comprises 50-60% of bioactive materials or biological inert materials by mass percent, and the balance of photosensitive resin; the magnetic ceramic ink comprises 40-50% of bioactive materials or biological inert materials by mass percent, 10-20% of magnetic materials by mass percent and the balance of photosensitive resin by mass percent.
The bioactive material can be calcium magnesium phosphate, calcium silicate, tricalcium phosphate, hydroxyapatite, or the like; the bio-inert material can be alumina, zirconia or silicon nitride, etc., and the magnetic material is a ferromagnetic material.
As shown in fig. 1, the rack secondary treatment module 3 includes an absolute ethyl alcohol washing unit 31, a drying unit 32, a high temperature calcination unit 33, a cooling unit 34, and a magnetizing unit 35.
During operation, the control module 2 controls the pickup manipulator 42 beside the bracket secondary treatment module 3 to put the bracket into absolute ethyl alcohol for cleaning, the bracket is put into the drying box for drying after the bracket is cleaned for 3 minutes, the bracket is put into the calciner for high-temperature calcination after the drying is finished, the bracket is taken out for cooling after the high-temperature calcination is finished, and the cooled magnetic ceramic bracket 5 is magnetized.
Further, the drying temperature is 50-60 ℃, the drying time is 6-9 hours, the high-temperature calcining temperature is 1000-1040 ℃, and the high-temperature calcining time is 3-5 hours.
As shown in fig. 1 and 4, the rack transport module 4 includes a transfer unit 41 and two pick-up robots 42; the conveying unit 41 includes a chain conveyor 413, a motor 414 fixedly installed under the chain conveyor 413, a rack tray 411 placed on the chain conveyor 413, and two positioning units 412 fixedly installed under the chain conveyor 413; the two picking manipulators 42 are respectively and fixedly installed between the bracket manufacturing module 1, the bracket secondary processing module 3 and the conveying unit 41, and the two positioning units 412 are respectively and fixedly installed beside the conveyor bracket near the two picking manipulators 42.
In operation, when the last process is completed, the nearest picking manipulator 42 transfers the rack to the rack tray 411 on the chain conveyor 413, then the positioning unit 412 is released, the motor 414 is started, the chain conveyor 413 starts to operate, when the rack moves to the next process along with the chain conveyor 413, the positioning unit 412 beside the picking manipulator 42 nearest to the process automatically positions the rack tray 411, the motor 414 stops operating, and then the picking manipulator 42 picks up the rack into the next process.
As shown in fig. 5, the rack tray 411 has a groove at an upper portion thereof and a buffer block 4111 at a front portion thereof.
In operation, the buffer block 4111 is used to cooperate with the positioning unit 412 to position the bracket tray 411.
As shown in fig. 4 and 6, the positioning unit 412 includes a positioning cylinder 4122 fixedly mounted on the conveyor support and a block 4121 mounted on the positioning cylinder 4122, the block 4121 being connected to a guide rod of the positioning cylinder 4122 by a bolt.
In operation, when the rack tray 411 moves above the positioning unit 412, the positioning cylinder 4122 on the conveyor rack lifts the stopper 4121 by the guide rod to position the rack tray 411 beside the pick-up robot 42.
Further, the number of grooves on the upper portion of the support tray 411 is 3, but may be 2, or even 1.
As shown in fig. 1, 7 and 8, a method for manufacturing a magnetic ceramic stent includes the steps of: designing a bracket model, carrying out layering slicing treatment on a three-dimensional structure model to be manufactured by layering software, controlling the multi-material three-dimensional printer 11 to print a bracket by the control module 2 after raw materials are added into the feeding area 12 of the bracket manufacturing module 1, transporting the bracket to the bracket secondary treatment module 3 through the bracket transporting module 4 after printing is finished, sequentially carrying out absolute ethyl alcohol cleaning, drying, high-temperature calcination, cooling and magnetization on the bracket, and obtaining the magnetic ceramic bracket 5; during operation, the self-assembly of the magnetic ceramic bracket 5 can be realized by means of the magnetism of the magnetic ceramic bracket 5; the magnetic ceramic bracket 5 can also be controlled by using an external magnetic field to realize the controllable assembly.
As shown in fig. 8, 9 and 10, the magnetic ceramic support 5 includes a magnetic layer 52, a magnetic protection layer 51 and a porous layer 53, wherein the magnetic layer 52 and the magnetic protection layer 51 are located at the middle of any one or any several surfaces of the magnetic ceramic support 5; the magnetic layer 52 can be positioned at the central part of the magnetic ceramic bracket 5, the thickness of the magnetic layer 52 is 0.5 mm-2 mm, the shape of the magnetic layer can be triangle, polygon, round and the like, and the shape and the size of the magnetic layer are 20% -50% of the area of the surface; the magnetic protection layer 51 is wrapped outside the magnetic layer 52, the thickness is 0.25-0.5 mm, the magnetic protection layer 51 is of a compact structure, the magnetic layer 52 and the porous layer 53 are of porous structures, the porosity is 48-54%, and the pore diameter is 300-500 mu m.
The specific process for manufacturing the magnetic ceramic bracket by the device comprises the following steps: firstly, a worker pours biological ceramic ink into a ceramic material trough 117 in a feeding area 12, pours absolute ethyl alcohol into a cleaning trough 118, pours magnetic ceramic ink into a magnetic material trough 119, then one or more support three-dimensional models can be led into a control module 2, at the moment, after starting a multi-material three-dimensional printer 11, the control module 2 controls a horizontal sliding rod 114 to enable a forming platform 111 to move to a trough of corresponding printing materials, then a vertical sliding rod 112 drives the forming platform 111 to automatically descend to a position 0.25mm away from the bottom of the trough, then the control module 2 enables a corresponding DLP projector 1110 to slice a slice image of a controlled projection model according to the support model, after the first slice is printed, the vertical sliding rod 112 drives the forming platform 111 to ascend by the height of the thickness of one slice, the scraper 116 descends to a position 0.25mm away from the bottom of the trough, then the trough rotates for one circle, and the scraper 116 ascends to print the first layer of the support; when the forming platform 111 needs to be moved to another trough for printing, the control module 2 firstly controls the forming platform 111 to move to the cleaning trough 118, then controls the vertical sliding rod 112 to drive the forming platform 111 to descend so that all printing pieces are immersed in absolute ethyl alcohol, the control module 2 starts the vibration motor 1111, the vibration motor 1111 automatically stops after 20 seconds, then controls the vertical sliding rod 112 to drive the forming platform 111 to ascend, then controls the horizontal sliding rod 114 to drive the forming platform 111 to move to the trough of corresponding printing materials, the printing operation above is repeated, each layer is solidified, the vertical sliding rod 112 drives the forming platform 111 and the printing pieces to lift the layer thickness of one slice, and the steps are sequentially repeated circularly, and the printing is finished layer by layer until the printing is finished; after the printing of the batch of brackets is completed, the vertical sliding rod 112 drives the forming platform 111 to automatically rise to the highest position, then the turnover mechanism 113 drives the forming platform 111 to turn 180 degrees to enable one surface with the brackets to face upwards, the control module 2 controls the pickup manipulator 42 beside the bracket manufacturing module 1 to pick up the brackets on the bracket tray 411 of the bracket conveying module 4, the motor 414 is started, the bracket tray 411 carrying the brackets is started along with the chain conveyor 413 to move to the bracket secondary processing module 3, the positioning cylinder 4122 on the positioning unit 412 is started, and the guide rod drives the stop block 4121 to move upwards to position the bracket tray 411; the control module 2 controls the pickup manipulator 42 beside the support secondary treatment module 3 to pick up the support into the support secondary treatment module 3 for the second procedure, the control module 2 controls the pickup manipulator 42 beside the support secondary treatment module 3 to put the support into absolute ethyl alcohol for cleaning, the support is put into a drying box for drying after the support is cleaned for 3 minutes, the support is put into a calciner for high-temperature calcination after the drying is completed, the support is taken out for cooling after the high-temperature calcination is completed, and the cooled magnetic ceramic support 5 is magnetized.
The magnetic ceramic bracket 5 can realize the self-assembly effect through the following steps:
(1) Obtaining a bone defect model structure of a bone defect part of a patient through medical imaging equipment, and determining the number, shape and size of the magnetic ceramic brackets 5 according to the structure;
(2) The space positions of a plurality of the magnetic ceramic brackets 5 are adjusted, so that the magnetic ceramic brackets 5 are connected with the adjacent magnetic ceramic brackets 5 through magnetism;
(3) The overall shape and the size of the magnetic ceramic bracket 5 after all the splicing are consistent with the injury shape and the size of the bone defect of the patient.
The magnetic ceramic bracket 5 can realize the effect of splicing the magnetic ceramic bracket in human body through the following steps:
(1) Obtaining a bone defect model structure of a bone defect part of a patient through medical imaging equipment, and determining the number, shape and size of the magnetic ceramic brackets 5 according to the structure and the size of an operation wound;
(2) Selecting a proper external magnetic field according to the height difference between the upper and lower parts of the bone defect at a specific position in the bone defect model structure of the patient, and ensuring that the external magnetic field applied to the outside of the patient can just attract and move the magnetic ceramic bracket 5 under the condition of the height difference;
(3) Placing the magnetic ceramic support 5 into a bone defect part in a patient through an operation wound, applying a proper external magnetic field right above the magnetic ceramic support 5 to control the magnetic ceramic support 5 to move to a proper position, removing the external magnetic field when the magnetic ceramic support 5 moves to the position, then placing the next magnetic ceramic support 5, repeating the operation, and splicing a plurality of the magnetic ceramic supports 5 layer by layer in sequence from left to right, from top to bottom and from low to high;
(4) When repeating the operation of the step (3), the external magnetic field is required to be adjusted according to the upper and lower height differences of the bone defects of the specific positions in the bone defect model structure of the patient, so that the requirement of the step (2) is met;
(5) The overall shape and the size of the magnetic ceramic bracket 5 after all the splicing are consistent with the injury shape and the size of the bone defect of the patient.
Example 1
The specific process for manufacturing the magnetic ceramic bracket by the device comprises the following steps: firstly, a worker pours biological ceramic ink into a ceramic material trough 117, absolute ethyl alcohol into a cleaning trough 118, magnetic ceramic ink into a magnetic material trough 119 in a feeding area 12, then a designed bracket model is led into a control module 2, and a multi-material three-dimensional printer 11 is started to start printing brackets; after the printing of the bracket is finished, the bracket is transported to the bracket secondary treatment module 3 by the bracket transportation module 4 to start the bracket secondary treatment, and the bracket is washed by absolute ethyl alcohol, dried, calcined at high temperature, cooled and magnetized after the cooling is finished. A plurality of magnetic ceramic brackets 5 with different shapes and different sizes can be prefabricated before a bone repair operation, and the magnetic ceramic brackets are assembled into a round shape, a triangle shape and a quadrilateral shape as shown in fig. 11, 12 and 13 on an operation site, so that the filling and the repair of a bone defect area are completed.
Example 2
The specific process for manufacturing the magnetic ceramic bracket by the device comprises the following steps: firstly, a worker pours biological ceramic ink into a ceramic material trough 117, absolute ethyl alcohol into a cleaning trough 118, magnetic ceramic ink into a magnetic material trough 119 in a feeding area 12, then a designed bracket model is led into a control module 2, and a multi-material three-dimensional printer 11 is started to start printing brackets; after the printing of the bracket is finished, the bracket is transported to the bracket secondary treatment module 3 by the bracket transportation module 4 to start bracket secondary treatment; washing with absolute ethyl alcohol, drying, calcining at high temperature, cooling, and magnetizing after cooling. The magnetic ceramic brackets 5 with different shapes and different sizes can be prefabricated before a bone repair operation, are placed into a bone defect part of a patient in an operation site, are controlled by an external magnetic field to controllably assemble the bone defect part in the patient into a round, triangular and quadrilateral shape as shown in fig. 11, 12 and 13, and complete filling and repairing of the bone defect area.
Claims (9)
1. A magnetic ceramic stent fabrication apparatus, comprising: the device comprises a bracket manufacturing module (1), a bracket secondary processing module (3), a control module (2) and a bracket conveying module (4); the control module (2) is used for controlling the operation of the bracket manufacturing module (1), the bracket secondary treatment module (3) and the bracket transportation module (4);
The products obtained by processing the bracket manufacturing module (1) enter the bracket secondary processing module (3) for further processing through the transportation of the bracket transportation module (4);
The bracket manufacturing module (1) comprises a multi-material three-dimensional printer (11) and a feeding area (12); the feeding area (12) is positioned at the inlet of the multi-material three-dimensional printer (11), raw materials for manufacturing the magnetic ceramic bracket (5) enter the multi-material three-dimensional printer (11) through the feeding area (12), and products obtained by processing the bracket manufacturing module (1) are obtained after the raw materials are printed by the multi-material three-dimensional printer (11);
The bracket secondary treatment module (3) comprises an absolute ethyl alcohol cleaning unit (31), a drying unit (32), a high-temperature calcining unit (33), a cooling unit (34) and a magnetizing unit (35), wherein a product processed by the bracket manufacturing module (1) sequentially enters the absolute ethyl alcohol cleaning unit (31), the drying unit (32), the high-temperature calcining unit (33), the cooling unit (34) and the magnetizing unit (35) for treatment to obtain a magnetic ceramic bracket (5);
the magnetic ceramic support (5) comprises a magnetic unit and a porous layer (53);
the magnetic unit comprises a magnetic layer (52), a magnetic protection layer (51), and the magnetic protection layer (51) is wrapped outside the magnetic layer (52);
The magnetic unit is used for generating magnetic attraction force to enable the magnetic ceramic bracket (5) to be magnetically connected with the magnetic ceramic bracket (5) adjacent to the magnetic ceramic bracket;
the magnetic unit is used for enabling the magnetic ceramic support (5) to adjust the space position of the magnetic ceramic support (5) under the action of an external magnetic field.
2. The magnetic ceramic stent fabrication apparatus of claim 1, wherein: the multi-material three-dimensional printer (11) comprises a fixing frame (115),
Two DLP projectors (1110) are installed on the fixing frame (115);
The fixing frame (115) is also provided with a ceramic material trough (117) and a magnetic material trough (119), and the ceramic material trough (117) and the magnetic material trough (119) are respectively positioned right above the two DLP projectors (1110);
A cleaning tank (118) is also arranged on the fixing frame (115); the cleaning tank (118) is positioned between the ceramic material tank (117) and the magnetic material tank (119), and a vibrating motor (1111) is arranged at the bottom of the cleaning tank (118) and is used for cleaning a printing piece in cooperation with the cleaning tank (118);
Two scrapers (116) are further arranged on the fixing frame (115), and the two scrapers (116) are respectively arranged on the outer sides of the ceramic material trough (117) and the magnetic material trough (119);
Still install vertical direction slide bar (112) on mount (115), install horizontal direction slide bar (114) on vertical direction slide bar (112), install tilting mechanism (113) on horizontal direction slide bar (114), fixed mounting has shaping platform (111) on tilting mechanism (113).
3. The magnetic ceramic stent fabrication apparatus of claim 1, wherein: the bracket transportation module (4) comprises a conveying unit (41) and two pickup manipulators (42); the two picking manipulators (42) are named as a manipulator I and a manipulator II respectively, the conveying unit (41) comprises a chain conveyor belt (413), the chain conveyor belt (413) is driven by a motor (414), and a bracket tray (411) is placed on the chain conveyor belt (413);
The chain conveyor belt (413) is supported through a conveyor belt support, two positioning units (412) are fixedly mounted on the conveyor belt support and are named as a first positioning unit and a second positioning unit respectively, the first positioning unit and the second positioning unit are both located between the support manufacturing module (1) and the support secondary treatment module (3), the first positioning unit is close to the support manufacturing module (1), the second positioning unit is close to the support secondary treatment module (3), the first manipulator is mounted at a position corresponding to the first positioning unit, and the second manipulator is mounted at a position corresponding to the second positioning unit.
4. A magnetic ceramic stent fabrication apparatus as defined in claim 3, wherein: the upper part of the bracket tray (411) is provided with a groove, and the front part of the bracket tray is provided with a buffer block (4111).
5. A magnetic ceramic stent fabrication apparatus as defined in claim 3, wherein: the positioning unit (412) comprises a positioning cylinder (4122) fixedly mounted on the conveyor belt bracket, and a block (4121) capable of moving along with the piston is mounted on the positioning cylinder (4122).
6. The magnetic ceramic stent fabrication apparatus of claim 1, wherein: the raw materials are biological ceramic ink and magnetic ceramic ink, the biological ceramic ink consists of biological materials and photosensitive resin, and the biological materials in the biological ceramic ink have the mass percentage of 50% -60%; the magnetic ceramic ink consists of a biological material, a magnetic material and photosensitive resin, wherein the mass percentage content of the biological material is 40-50%, and the mass percentage content of the magnetic material is 10-20%;
The biological material comprises a biological active material and a biological inert material, wherein the biological active material is any one or a combination of more than one of calcium magnesium phosphate, calcium silicate, tricalcium phosphate and hydroxyapatite; the biological inert material is any one or more of combination of alumina, zirconia and silicon nitride, and the magnetic material is ferromagnetic material.
7. A magnetic ceramic support, characterized in that:
the magnetic ceramic support (5) comprises a magnetic unit and a porous layer (53);
the magnetic unit comprises a magnetic layer (52), a magnetic protection layer (51), and the magnetic protection layer (51) is wrapped outside the magnetic layer (52);
The magnetic ceramic support (5) is of a polyhedral structure, the magnetic units are positioned on the surface of the porous layer (53), the thickness of the magnetic layer (52) is 0.5-2 mm, and the area of the magnetic units accounts for 20-50% of the area of the surface where the magnetic units are positioned; the thickness of the magnetic protective layer (51) is 0.25-0.5 mm, the magnetic layer (52) and the porous layer (53) are porous structures, the porosity is 48-54%, and the pore diameter is 300-500 mu m.
8. A method of manufacturing a magnetic ceramic stent using the magnetic ceramic stent manufacturing apparatus according to any one of claims 1 to 6, comprising the steps of:
Designing a bracket model, carrying out layering slicing treatment on a three-dimensional structure model to be manufactured by using layering software, adding raw materials into a feeding area (12) of a bracket manufacturing module (1), controlling a multi-material three-dimensional printer (11) to print a bracket by using a control module (2), transporting the bracket to a bracket secondary treatment module (3) through a bracket transporting module (4) after printing, and sequentially carrying out absolute ethyl alcohol cleaning, drying, high-temperature calcination, cooling and magnetization on the bracket to obtain a magnetic ceramic bracket (5); the manufactured magnetic ceramic bracket (5) realizes the self-assembly of the magnetic ceramic bracket (5) by means of self magnetism; the manufactured magnetic ceramic bracket (5) utilizes an external magnetic field to control the magnetic ceramic bracket (5) to realize controllable assembly.
9. The method for manufacturing a magnetic ceramic bracket according to claim 8, wherein the drying temperature is 50-60 ℃ and the drying time is 6-9 hours; the high-temperature calcination temperature is 1000-1040 ℃, and the high-temperature calcination time is 3-5 hours.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410054899.9A CN117885176A (en) | 2024-01-15 | 2024-01-15 | Magnetic ceramic support and manufacturing device and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410054899.9A CN117885176A (en) | 2024-01-15 | 2024-01-15 | Magnetic ceramic support and manufacturing device and manufacturing method thereof |
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| CN117885176A true CN117885176A (en) | 2024-04-16 |
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| CN202410054899.9A Pending CN117885176A (en) | 2024-01-15 | 2024-01-15 | Magnetic ceramic support and manufacturing device and manufacturing method thereof |
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- 2024-01-15 CN CN202410054899.9A patent/CN117885176A/en active Pending
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