CN105193527A - Method for performing EBM metal 3D printing on personalized human body thighbone prosthesis sleeve - Google Patents
Method for performing EBM metal 3D printing on personalized human body thighbone prosthesis sleeve Download PDFInfo
- Publication number
- CN105193527A CN105193527A CN201510232768.6A CN201510232768A CN105193527A CN 105193527 A CN105193527 A CN 105193527A CN 201510232768 A CN201510232768 A CN 201510232768A CN 105193527 A CN105193527 A CN 105193527A
- Authority
- CN
- China
- Prior art keywords
- axis
- metal
- ebm
- personalized
- micro
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The invention discloses a method for performing EBM metal 3D printing on a personalized human body thighbone prosthesis sleeve. The method includes the steps that encrypted CT scanning is performed on the upper middle section of a metaphysis prosthesis part, and CTdicom data are input into Mimics software to reconstruct a grid model; surface reconstruction and smoothing processing are performed on the grid model; post-modification is performed on the bone three-dimensional grid model based on the joint prosthesis design concept; a personalized joint prosthesis three-dimensional model is generated through surface reconstruction and designing; the shape of a personalized joint prosthesis is adjusted through finite element analysis; the three-dimensional model of the implant is input into a rapid prototyping machine and printed through EBM RP technology metal 3D printing. The shape of the printed and manufactured finished product can be completely matched with that of the medullary cavity of the distal femoral metaphysic of every patient, the personalized thighbone prosthesis can be knocked to be implanted just through a few intra-operative medullary cavity files, and good initial fixation and long-time biological fixation can be achieved.
Description
Technical field
The invention belongs to 3D printing technique field, particularly relate to a kind of method that EBM metal 3D prints personalized human body femoral prosthesis oversleeve.
Background technology
Existing standardization artificial femoral prosthesis designs based on the statistics numeral of general femoral bone cavitas medullaris form, and everyone femur cavitas medullaris shape is each different, and therefore, standardization artificial femoral prosthesis shape and femur cavitas medullaris shape are all unmatched substantially.When total hip arthroplasty, the plenty of time, consumption was in successively burr pulp cavity, repeatedly die trial, for the first burr of selected a certain prosthesis handle forms a suitable lacuna, then give type femoral bone end prosthesis implant knock firm.Standard type femoral bone end prosthesis implants Problems existing: burr pulp cavity loaded down with trivial details time-consuming, bone loss is many, Periprosthetic fracture in easy concurrent art, intraoperative hemorrhage is many, operating time is long, relevant postoperative complication are many, post-operative recovery is slow.The pulp cavity lopsided near end of thighbone pulp cavity, Crowe4 type is thin and straight, the femoral bone cavitas medullaris of near-end distortion, standard femoral stem cannot effectively be implanted or mate.Standardization type femoral bone end prosthesis is often planted prosthese shape and is determined (handle body inside curve radian, three-dimensional tapering), does not mate with Pulp chamber is natural.
During existing personalized customization femoral prosthesis design charges, there is no special design software, manufacture loaded down with trivial details: need independent molding, casting, forging, milling, mill, plane.Manufacturing cycle is long especially, and expensive, and clinical practice is few, is mainly used in the customization of tumor prosthese.
Summary of the invention
The object of the present invention is to provide a kind of EBM metal 3D to print the method for personalized human body femoral prosthesis oversleeve, be intended to solve existing standardization artificial femoral prosthesis and do not mate with Pulp chamber is natural, personalized customization femoral prosthesis manufactures loaded down with trivial details problem.
The present invention is achieved in that a kind of method that EBM metal 3D prints personalized human body femoral prosthesis oversleeve comprises:
Step one, in metaphysis its part epimere encryption CT scan, by CTdicom data importing Mimics software rebuild grid model;
Step 2, resurfacing, fairing processing are carried out to grid model;
Step 3, rear modification is carried out to skeleton three-dimensional grid model using artificial joint designs theory;
Step 4, structure surface, design generate personalized articular prosthesis threedimensional model, model inside is the turbination cavity of a vertical shape, internal diameter is standardized designs, can obtain firmly assembly fix by Morsetaper taper is chimeric with standardization femoral stem handle body, it is overall that femoral neck, shoulder and far-end handle body adopt standardised seriesization to manufacture;
Step 5, by finite element analysis, personalized articular prosthesis to be adjusted in shape;
Step 6, by the threedimensional model of implant import rapidform machine, printed by EBMRP technology metal 3D.
Further, the 3D print system that the method that EBM metal 3D prints personalized human body femoral prosthesis oversleeve uses comprises installing rack, is located at the print platform in installing rack and is located at printhead, inert gas-shielded arc welding welding system, clamping device, feeding mechanism, material supporting plate, X-axis telecontrol equipment, Y-axis telecontrol equipment, the Z axis telecontrol equipment above print platform;
Described printhead is connected on XYZ three-axis moving device, the three-dimensional coordinate of three-shaft linkage positioning printing head, printhead moves along the ground floor of target part section drawing shape under the drive of X, Y two axle movement mechanism, after ground floor section seam is complete, printhead is promoted the height of one deck by Z axis motion, repeats the printing of lower one deck section;
Described print platform is provided with the Z axis telecontrol equipment driving print platform to move along Z axis, this Z axis telecontrol equipment comprises the Z axis guide pad and Z axis feed screw nut seat that are arranged on print platform both sides, and be arranged on the Z axis lead of installing rack both sides, Z axis screw mandrel and Z axis motor, described Z axis guide pad is enclosed within described Z axis lead, described Z axis feed screw nut cover for seat is on described Z axis screw mandrel, and described Z axis motor drives described Z axis screw mandrel by Z axis Timing Belt;
Drive the X-axis telecontrol equipment that 3D printhead moves along X-axis, and the Y-axis telecontrol equipment driving X-axis telecontrol equipment to move along Y-axis, this X-axis telecontrol equipment comprises bracing frame, X-axis motor and X-axis slide block, support frame as described above comprises top board and biside plate, X-axis guide rod is provided with between two side plates, described X-axis slide block set is on X-axis guide rod, support frame as described above both sides are provided with synchronous pulley, X-axis Timing Belt is provided with between two synchronous pulleys, described X-axis motor drives one of them synchronous pulley, described X-axis slide block is provided with tooth bar, and described tooth bar engages with X-axis Timing Belt;
Drive the Y-axis feed screw nut that 3D printhead comprises y-axis motor, Y-axis screw mandrel along the Y-axis telecontrol equipment that Y-axis is moved and is located on the top board of support frame as described above, described y-axis motor Direct driver Y-axis screw mandrel, described Y-axis feed screw nut is enclosed within Y-axis screw mandrel, the both sides of support frame as described above are provided with Y-axis guide pad, on described installing rack, corresponding Y-axis guide pad place is provided with Y-axis guide rail, and described Y-axis guide pad coordinates with Y-axis guide rail;
Described printhead comprises melting-painting nozzle, strengthening nozzle, described melting-painting nozzle is used for pulverized powder, described strengthening nozzle is for spraying shot-peening or Emission Lasers, described melting-painting nozzle is arranged on center, described strengthening nozzle is arranged on melting-painting nozzle periphery, described strengthening nozzle comprises 3-5 jet pipe, and each jet pipe realizes independent shot-peening by electrical system control;
Noble gas in described inert gas-shielded arc welding welding system produces system and comprises aerogenesis unit, detecting unit, cooling unit and controller; the combustion powder automatic feed unit that described aerogenesis unit comprises noble gas producer and is communicated with noble gas producer inside, described detecting unit comprises O
2gas analyser and O
2, CO gas analyser, described cooling unit comprises at least one group of cooler, described O
2the inlet end of gas analyser is communicated with protected confined space by the first blower fan; its outlet side is by pipeline and noble gas producer inlet communication; the outlet of described noble gas producer is communicated with cooler by pipeline; described cooler is communicated with protected confined space by the second blower fan, described O
2, CO gas analyser is communicated with cooler by pipeline, described combustion powder automatic feed unit, O
2gas analyser and O
2, CO gas analyser is connected with controller respectively;
The pipeline that described second blower fan and protected confined space are communicated with is provided with the two-position three way electrical ball valve be connected with controller, and described controller is according to O
2, the result that detects of CO gas analyser, control two-position three way electrical ball valve and be communicated with protected confined space or noble gas producer by pipeline, at described first blower fan and O
2the pipeline that gas analyser is communicated with is provided with the gas flow sensor be connected with controller.
Further, the concrete grammar that described print platform carries out layering printing comprises:
Step one, cladding layer are shaped:
First adopt metal 3D printing technique to form some cladding layers at substrate surface, the thickness 0.05-0.3mm of every one deck cladding layer, when cladding layer reaches certain thickness, stop 3D printing-forming;
Step 2, cladding layer heat:
By heater, cladding layer upper surface is heated to 100 DEG C-700 DEG C;
Step 3, cladding layer subregion:
Cladding layer is divided into frontier district and mesozone; Wherein frontier district is made up of external boundary region, or is made up of external boundary region and inner edge battery limit (BL); The closed area that described external boundary region is formed with this outline to the closed curve that formed of inside parts skew 0.5-3mm for part outline, described inner edge battery limit (BL) offsets closed curve that 0.5-3mm formed and the closed area that this Internal periphery is formed to inside parts for part Internal periphery; Described mesozone is other regions except frontier district;
Step 4, cladding layer are strengthened:
Strengthening order is mesozone 7 again, first frontier district, and the coverage rate during strengthening of mesozone is 0.5-0.8 times of frontier district;
Step 5, cladding layer continue to be shaped:
Cladding layer top after strengthening continues to form some cladding layers, thickness 0.05-0.3mm;
Step 6, repetition step 2, three, four, five are until metal 3D printout has been shaped.
Further, the preparation method of the metal dust that the method that described EBM metal 3D prints personalized human body femoral prosthesis oversleeve uses comprises:
Step one, first employing physical vaporous deposition or chemical vapour deposition technique prepare sub-micron-sized metal powder, and the mean diameter of the sub-micron-sized metal powder of gained is 0.1-3 micron;
Step 2, by the mean diameter of step one gained be 0.1-3 micron sub-micron-sized metal powder and liquid mixing, be mixed with metal powder slurry; The weight ratio of the sub-micron-sized metal powder liquid of above-mentioned metal powder slurry is 0.25-2.0: 1;
Step 3, in the metal powder slurry of step gained, add the organic bond of sub-micron-sized metal powder weight 0.1-10%, be uniformly mixed;
Step 4, slurry that step 3 is uniformly mixed by centrifugal spraying granulator or press atomization comminutor be prepared into ball shape, mean diameter is the metal dust that the 3D of 10-50 micron prints.
Further, described gas flow sensor comprises Circuits System, LASER Light Source, glass rotameter, substrate base, at least one micro-heating resistor, the micro-temperature detecting resistance at least one upstream, the micro-temperature detecting resistance at least one downstream, at least one ambient resistance, , optical fiber image transmission beam and photodiode arrangement, substrate base offers groove, at least one micro-heating resistor, the micro-temperature detecting resistance at least one upstream, the two ends of the micro-temperature detecting resistance at least one downstream are all fixed on substrate base hangs oneself from a beam on groove in overarm type structure, the micro-temperature detecting resistance at least one upstream lays respectively on the relative both sides of at least one micro-heating resistor with the micro-temperature detecting resistance at least one downstream, at least one ambient resistance is fixed on substrate base, and is positioned at substrate base and has on the side of the micro-temperature detecting resistance at least one upstream,
The structure of described Circuits System comprises microprocessor, drive circuit, signal processing circuit and light sensitive diode scanning circuit, and wherein, microprocessor is connected with semiconductor laser circuit by drive circuit; Microprocessor is connected with light sensitive diode scanning circuit, and light sensitive diode scanning circuit is connected with light sensitive diode; Microprocessor is connected with signal processing circuit, and signal processing circuit is connected with light sensitive diode scanning circuit;
Described optical fiber image transmission beam is arranged in some perpendicular row along the axial direction of glass tubing, arranges cylinder lenses between glass tubing and optical fiber image transmission beam, often the head and the tail alignment of perpendicular row, and often perpendicular row are made up of some vertically disposed optical fiber; The often corresponding one group of photodiode arrangement of perpendicular row optical fiber, often organize photodiode arrangement and be made up of several light sensitive diodes, optical fiber is connected with light sensitive diode.
The present invention to fit metaphysis Pulp chamber by carrying out Design of digital based on epimere pulp cavity CT scan data in femur most, and the Modular femoral prosthesis manufacturing this personalization of finished product is printed by EBM metal three D, can match completely with the Distal femoral metaphysis pulp cavity shape of each patient, only need pulp cavity burr in a small amount of art, just the femoral prosthesis of personalization can be knocked implantation, obtain good initially fixing and fix long-term biology.
Accompanying drawing explanation
Fig. 1 is the method flow diagram that EBM metal 3D that the embodiment of the present invention provides prints personalized human body femoral prosthesis oversleeve.
Detailed description of the invention
For summary of the invention of the present invention, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows: the present invention does not exist the innovation of software or method.
Refer to Fig. 1:
The present invention is achieved in that a kind of method that EBM metal 3D prints personalized human body femoral prosthesis oversleeve comprises:
S101, in metaphysis its part epimere encryption CT scan, by CTdicom data importing Mimics software rebuild grid model;
S102, resurfacing, fairing processing are carried out to grid model;
S103, rear modification is carried out to skeleton three-dimensional grid model using artificial joint designs theory;
S104, structure surface, design generate personalized articular prosthesis threedimensional model, model inside is the turbination cavity of a vertical shape, internal diameter is standardized designs, can obtain firmly assembly fix by Morsetaper taper is chimeric with standardization femoral stem handle body, it is overall that femoral neck, shoulder and far-end handle body adopt standardised seriesization to manufacture;
S105, by finite element analysis, personalized articular prosthesis to be adjusted in shape;
S106, by the threedimensional model of implant import rapidform machine, printed by EBMRP technology metal 3D.
Further, the 3D print system that the method that EBM metal 3D prints personalized human body femoral prosthesis oversleeve uses comprises installing rack, is located at the print platform in installing rack and is located at printhead, inert gas-shielded arc welding welding system, clamping device, feeding mechanism, material supporting plate, X-axis telecontrol equipment, Y-axis telecontrol equipment, the Z axis telecontrol equipment above print platform;
Described printhead is connected on XYZ three-axis moving device, the three-dimensional coordinate of three-shaft linkage positioning printing head, printhead moves along the ground floor of target part section drawing shape under the drive of X, Y two axle movement mechanism, after ground floor section seam is complete, printhead is promoted the height of one deck by Z axis motion, repeats the printing of lower one deck section;
Described print platform is provided with the Z axis telecontrol equipment driving print platform to move along Z axis, this Z axis telecontrol equipment comprises the Z axis guide pad and Z axis feed screw nut seat that are arranged on print platform both sides, and be arranged on the Z axis lead of installing rack both sides, Z axis screw mandrel and Z axis motor, described Z axis guide pad is enclosed within described Z axis lead, described Z axis feed screw nut cover for seat is on described Z axis screw mandrel, and described Z axis motor drives described Z axis screw mandrel by Z axis Timing Belt;
Drive the X-axis telecontrol equipment that 3D printhead moves along X-axis, and the Y-axis telecontrol equipment driving X-axis telecontrol equipment to move along Y-axis, this X-axis telecontrol equipment comprises bracing frame, X-axis motor and X-axis slide block, support frame as described above comprises top board and biside plate, X-axis guide rod is provided with between two side plates, described X-axis slide block set is on X-axis guide rod, support frame as described above both sides are provided with synchronous pulley, X-axis Timing Belt is provided with between two synchronous pulleys, described X-axis motor drives one of them synchronous pulley, described X-axis slide block is provided with tooth bar, and described tooth bar engages with X-axis Timing Belt;
Drive the Y-axis feed screw nut that 3D printhead comprises y-axis motor, Y-axis screw mandrel along the Y-axis telecontrol equipment that Y-axis is moved and is located on the top board of support frame as described above, described y-axis motor Direct driver Y-axis screw mandrel, described Y-axis feed screw nut is enclosed within Y-axis screw mandrel, the both sides of support frame as described above are provided with Y-axis guide pad, on described installing rack, corresponding Y-axis guide pad place is provided with Y-axis guide rail, and described Y-axis guide pad coordinates with Y-axis guide rail;
Described printhead comprises melting-painting nozzle, strengthening nozzle, described melting-painting nozzle is used for pulverized powder, described strengthening nozzle is for spraying shot-peening or Emission Lasers, described melting-painting nozzle is arranged on center, described strengthening nozzle is arranged on melting-painting nozzle periphery, described strengthening nozzle comprises 3-5 jet pipe, and each jet pipe realizes independent shot-peening by electrical system control;
Noble gas in described inert gas-shielded arc welding welding system produces system and comprises aerogenesis unit, detecting unit, cooling unit and controller; the combustion powder automatic feed unit that described aerogenesis unit comprises noble gas producer and is communicated with noble gas producer inside, described detecting unit comprises O
2gas analyser and O
2, CO gas analyser, described cooling unit comprises at least one group of cooler, described O
2the inlet end of gas analyser is communicated with protected confined space by the first blower fan; its outlet side is by pipeline and noble gas producer inlet communication; the outlet of described noble gas producer is communicated with cooler by pipeline; described cooler is communicated with protected confined space by the second blower fan, described O
2, CO gas analyser is communicated with cooler by pipeline, described combustion powder automatic feed unit, O
2gas analyser and O
2, CO gas analyser is connected with controller respectively;
The pipeline that described second blower fan and protected confined space are communicated with is provided with the two-position three way electrical ball valve be connected with controller, and described controller is according to O
2, the result that detects of CO gas analyser, control two-position three way electrical ball valve and be communicated with protected confined space or noble gas producer by pipeline, at described first blower fan and O
2the pipeline that gas analyser is communicated with is provided with the gas flow sensor be connected with controller.
Further, the concrete grammar that described print platform carries out layering printing comprises:
Step one, cladding layer are shaped:
First adopt metal 3D printing technique to form some cladding layers at substrate surface, the thickness 0.05-0.3mm of every one deck cladding layer, when cladding layer reaches certain thickness, stop 3D printing-forming;
Step 2, cladding layer heat:
By heater, cladding layer upper surface is heated to 100 DEG C-700 DEG C;
Step 3, cladding layer subregion:
Cladding layer is divided into frontier district and mesozone; Wherein frontier district is made up of external boundary region, or is made up of external boundary region and inner edge battery limit (BL); The closed area that described external boundary region is formed with this outline to the closed curve that formed of inside parts skew 0.5-3mm for part outline, described inner edge battery limit (BL) offsets closed curve that 0.5-3mm formed and the closed area that this Internal periphery is formed to inside parts for part Internal periphery; Described mesozone is other regions except frontier district;
Step 4, cladding layer are strengthened:
Strengthening order is mesozone 7 again, first frontier district, and the coverage rate during strengthening of mesozone is 0.5-0.8 times of frontier district;
Step 5, cladding layer continue to be shaped:
Cladding layer top after strengthening continues to form some cladding layers, thickness 0.05-0.3mm;
Step 6, repetition step 2, three, four, five are until metal 3D printout has been shaped.
Further, the preparation method of the metal dust that the method that described EBM metal 3D prints personalized human body femoral prosthesis oversleeve uses comprises:
Step one, first employing physical vaporous deposition or chemical vapour deposition technique prepare sub-micron-sized metal powder, and the mean diameter of the sub-micron-sized metal powder of gained is 0.1-3 micron;
Step 2, by the mean diameter of step one gained be 0.1-3 micron sub-micron-sized metal powder and liquid mixing, be mixed with metal powder slurry; The weight ratio of the sub-micron-sized metal powder liquid of above-mentioned metal powder slurry is 0.25-2.0: 1;
Step 3, in the metal powder slurry of step gained, add the organic bond of sub-micron-sized metal powder weight 0.1-10%, be uniformly mixed;
Step 4, slurry that step 3 is uniformly mixed by centrifugal spraying granulator or press atomization comminutor be prepared into ball shape, mean diameter is the metal dust that the 3D of 10-50 micron prints.
Further, described gas flow sensor comprises Circuits System, LASER Light Source, glass rotameter, substrate base, at least one micro-heating resistor, the micro-temperature detecting resistance at least one upstream, the micro-temperature detecting resistance at least one downstream, at least one ambient resistance, , optical fiber image transmission beam and photodiode arrangement, substrate base offers groove, at least one micro-heating resistor, the micro-temperature detecting resistance at least one upstream, the two ends of the micro-temperature detecting resistance at least one downstream are all fixed on substrate base hangs oneself from a beam on groove in overarm type structure, the micro-temperature detecting resistance at least one upstream lays respectively on the relative both sides of at least one micro-heating resistor with the micro-temperature detecting resistance at least one downstream, at least one ambient resistance is fixed on substrate base, and is positioned at substrate base and has in an example of the micro-temperature detecting resistance at least one upstream,
The structure of described Circuits System comprises microprocessor, drive circuit, signal processing circuit and light sensitive diode scanning circuit, and wherein, microprocessor is connected with semiconductor laser circuit by drive circuit; Microprocessor is connected with light sensitive diode scanning circuit, and light sensitive diode scanning circuit is connected with light sensitive diode; Microprocessor is connected with signal processing circuit, and signal processing circuit is connected with light sensitive diode scanning circuit;
Described optical fiber image transmission beam is arranged in some perpendicular row along the axial direction of glass tubing, arranges cylinder lenses between glass tubing and optical fiber image transmission beam, often the head and the tail alignment of perpendicular row, and often perpendicular row are made up of some vertically disposed optical fiber; The often corresponding one group of photodiode arrangement of perpendicular row optical fiber, often organize photodiode arrangement and be made up of several light sensitive diodes, optical fiber is connected with light sensitive diode.
In the present invention, heating-up temperature can be set to different predetermined values by the different attribute (as moulding) according to material, can play shock peening so better and strengthen the ability in part density;
Different strengthening parameters (comprising pressure, number of times, speed, shot-peening quality size, translational speed, moving interval etc.) can be taked at the diverse location of cladding layer, or according to the strengthening order of certain order adjustment cladding layer diverse location, and then the technique being reached through adjustment strengthening is to regulate character and the size of the residual stress at inside parts diverse location place, thus reaches and increasing the effect ensureing drip molding precision while density.
The operation principle of gas flow sensor of the present invention is: be arranged on laser beam that the LASER Light Source on top base launches and penetrate along the axis of tapered glass tube, directive is located at the reflector on float, after reflecting partially turn 90 degrees by reflector, be irradiated to and be on each perpendicular optical fiber arranged of sustained height with float, and conduct to corresponding photodiode arrangement, along with moving up and down of float, laser beam can be irradiated on the optical fiber of diverse location, thus makes corresponding light sensitive diode receive light, by light sensitive diode scanning circuit, light sensitive diode is scanned successively, along with the carrying out of scanning, the status information (whether receiving light) of each light sensitive diode outputs to signal processing circuit successively, this signal (status information of each light sensitive diode) sends into microprocessor after signal processing circuit process, microprocessor calculates the position of float according to each point light intensity meter, being converted into corresponding flow according to relevant flow formula again (is prior art according to the corresponding flow of the position calculation of float, the present invention improves this nothing, repeat no more), during embody rule, microprocessor is connected with remote computer or display device by data wire, thus can remote monitoring flow, and can record be realized, integrating, the several functions such as automatic control.
The present invention to fit metaphysis Pulp chamber by carrying out Design of digital based on epimere pulp cavity CT scan data in femur most, and the Modular femoral prosthesis manufacturing this personalization of finished product is printed by EBM metal three D, can match completely with the Distal femoral metaphysis pulp cavity shape of each patient, only need pulp cavity burr in a small amount of art, just the femoral prosthesis of personalization can be knocked implantation, obtain good initially fixing and fix long-term biology.
The above is only to preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, every according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent variations and modification, all belong in the scope of technical solution of the present invention.
Claims (5)
1. EBM metal 3D prints a method for personalized human body femoral prosthesis oversleeve, it is characterized in that, the method that described EBM metal 3D prints personalized human body femoral prosthesis oversleeve comprises:
Step one, in metaphysis its part epimere encryption CT scan, by CTdicom data importing Mimics software rebuild grid model;
Step 2, resurfacing, fairing processing are carried out to grid model;
Step 3, rear modification is carried out to skeleton three-dimensional grid model using artificial joint designs theory;
Step 4, structure surface, design generate personalized articular prosthesis threedimensional model, model inside is the turbination cavity of a vertical shape, chimeric by Morsetaper taper with femoral stem handle body, it is overall that femoral neck, shoulder and far-end handle body adopt standardised seriesization to manufacture;
Step 5, by finite element analysis, personalized articular prosthesis to be adjusted in shape;
Step 6, by the threedimensional model of implant import rapidform machine, printed by EBMRP technology metal 3D.
2. EBM metal 3D as claimed in claim 1 prints the method for personalized human body femoral prosthesis oversleeve; it is characterized in that, the 3D print system that the method that EBM metal 3D prints personalized human body femoral prosthesis oversleeve uses comprises installing rack, is located at the print platform in installing rack and is located at printhead, inert gas-shielded arc welding welding system, clamping device, feeding mechanism, material supporting plate, X-axis telecontrol equipment, Y-axis telecontrol equipment, the Z axis telecontrol equipment above print platform.
Printhead is connected on XYZ three-axis moving device, the three-dimensional coordinate of three-shaft linkage positioning printing head; Print platform is provided with the Z axis telecontrol equipment driving print platform to move along Z axis, Z axis telecontrol equipment comprises the Z axis guide pad and Z axis feed screw nut seat that are arranged on print platform both sides, and be arranged on the Z axis lead of installing rack both sides, Z axis screw mandrel and Z axis motor, Z axis guide pad is enclosed within described Z axis lead, described Z axis feed screw nut cover for seat is on described Z axis screw mandrel, and described Z axis motor drives described Z axis screw mandrel by Z axis Timing Belt;
X-axis telecontrol equipment comprises bracing frame, X-axis motor and X-axis slide block, support frame as described above comprises top board and biside plate, X-axis guide rod is provided with between biside plate, described X-axis slide block set is on X-axis guide rod, support frame as described above both sides are provided with synchronous pulley, are provided with X-axis Timing Belt between synchronous pulley, and described X-axis motor drives one of them synchronous pulley, described X-axis slide block is provided with tooth bar, and described tooth bar engages with X-axis Timing Belt;
The Y-axis feed screw nut that Y-axis telecontrol equipment comprises y-axis motor, Y-axis screw mandrel and is located on the top board of support frame as described above, described y-axis motor Direct driver Y-axis screw mandrel, described Y-axis feed screw nut is enclosed within Y-axis screw mandrel, the both sides of support frame as described above are provided with Y-axis guide pad, on described installing rack, corresponding Y-axis guide pad place is provided with Y-axis guide rail, and described Y-axis guide pad coordinates with Y-axis guide rail;
Printhead comprises melting-painting nozzle, strengthening nozzle, described melting-painting nozzle is used for pulverized powder, described strengthening nozzle is for spraying shot-peening or Emission Lasers, described melting-painting nozzle is arranged on center, described strengthening nozzle is arranged on melting-painting nozzle periphery, described strengthening nozzle comprises 3-5 jet pipe, and each jet pipe realizes independent shot-peening by electrical system control;
Noble gas in inert gas-shielded arc welding welding system produces system and comprises aerogenesis unit, detecting unit, cooling unit and controller; the combustion powder automatic feed unit that described aerogenesis unit comprises noble gas producer and is communicated with noble gas producer inside, described detecting unit comprises O
2gas analyser and O
2, CO gas analyser, described cooling unit comprises at least one group of cooler, described O
2the inlet end of gas analyser is communicated with protected confined space by the first blower fan; outlet side is by pipeline and noble gas producer inlet communication; the outlet of described noble gas producer is communicated with cooler by pipeline; described cooler is communicated with protected confined space by the second blower fan, described O
2, CO gas analyser is communicated with cooler by pipeline, described combustion powder automatic feed unit, O
2gas analyser and O
2, CO gas analyser is connected with controller respectively;
The pipeline that described second blower fan and protected confined space are communicated with is provided with the two-position three way electrical ball valve be connected with controller; control two-position three way electrical ball valve to be communicated with protected confined space or noble gas producer by pipeline, at described first blower fan and O
2the pipeline that gas analyser is communicated with is provided with the gas flow sensor be connected with controller.
3. EBM metal 3D as claimed in claim 1 prints the method for personalized human body femoral prosthesis oversleeve, it is characterized in that, 3D prints the concrete grammar carrying out layering printing and comprises:
Step one, cladding layer are shaped:
First adopt metal 3D printing technique to form some cladding layers at substrate surface, the thickness 0.05-0.3mm of every one deck cladding layer, when cladding layer reaches certain thickness, stop 3D printing-forming;
Step 2, cladding layer heat:
By heater, cladding layer upper surface is heated to 100 DEG C-700 DEG C;
Step 3, cladding layer subregion:
Cladding layer is divided into frontier district and mesozone; Wherein frontier district is made up of external boundary region, or is made up of external boundary region and inner edge battery limit (BL); The closed area that described external boundary region is formed with this outline to the closed curve that formed of inside parts skew 0.5-3mm for part outline, described inner edge battery limit (BL) offsets closed curve that 0.5-3mm formed and the closed area that this Internal periphery is formed to inside parts for part Internal periphery; Described mesozone is other regions except frontier district;
Step 4, cladding layer are strengthened:
Strengthening order is mesozone 7 again, first frontier district, and the coverage rate during strengthening of mesozone is 0.5-0.8 times of frontier district;
Step 5, cladding layer continue to be shaped:
Cladding layer top after strengthening continues to form some cladding layers, thickness 0.05-0.3mm;
Step 6, repetition step 2, three, four, five are until metal 3D printout has been shaped.
4. EBM metal 3D as claimed in claim 1 prints the method for personalized human body femoral prosthesis oversleeve, and it is characterized in that, the preparation method of the metal dust that the method that described EBM metal 3D prints personalized human body femoral prosthesis oversleeve uses comprises:
Step one, first employing physical vaporous deposition or chemical vapour deposition technique prepare sub-micron-sized metal powder, and the mean diameter of the sub-micron-sized metal powder of gained is 0.1-3 micron;
Step 2, by the mean diameter of step one gained be 0.1-3 micron sub-micron-sized metal powder and liquid mixing, be mixed with metal powder slurry; The weight ratio of the sub-micron-sized metal powder liquid of above-mentioned metal powder slurry is 0.25-2.0: 1;
Step 3, in the metal powder slurry of step gained, add the organic bond of sub-micron-sized metal powder weight 0.1-10%, be uniformly mixed;
Step 4, slurry that step 3 is uniformly mixed by centrifugal spraying granulator or press atomization comminutor be prepared into ball shape, mean diameter is the metal dust that the 3D of 10-50 micron prints.
5. EBM metal 3D as claimed in claim 2 prints the method for personalized human body femoral prosthesis oversleeve, it is characterized in that, described gas flow sensor comprises Circuits System, LASER Light Source, glass rotameter, substrate base, at least one micro-heating resistor, the micro-temperature detecting resistance at least one upstream, the micro-temperature detecting resistance at least one downstream, at least one ambient resistance, optical fiber image transmission beam and photodiode arrangement, substrate base offers groove, at least one micro-heating resistor, the micro-temperature detecting resistance at least one upstream, the two ends of the micro-temperature detecting resistance at least one downstream are all fixed on substrate base hangs oneself from a beam on groove in overarm type structure, the micro-temperature detecting resistance at least one upstream lays respectively on the relative both sides of at least one micro-heating resistor with the micro-temperature detecting resistance at least one downstream, at least one ambient resistance is fixed on substrate base, and is positioned at substrate base and has on the side of the micro-temperature detecting resistance at least one upstream,
The structure of described Circuits System comprises microprocessor, drive circuit, signal processing circuit and light sensitive diode scanning circuit, and wherein, microprocessor is connected with semiconductor laser circuit by drive circuit; Microprocessor is connected with light sensitive diode scanning circuit, and light sensitive diode scanning circuit is connected with light sensitive diode; Microprocessor is connected with signal processing circuit, and signal processing circuit is connected with light sensitive diode scanning circuit;
Described optical fiber image transmission beam is arranged in some perpendicular row along the axial direction of glass tubing, arranges cylinder lenses between glass tubing and optical fiber image transmission beam, often the head and the tail alignment of perpendicular row, and often perpendicular row are made up of some vertically disposed optical fiber; The often corresponding one group of photodiode arrangement of perpendicular row optical fiber, often organize photodiode arrangement and be made up of several light sensitive diodes, optical fiber is connected with light sensitive diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510232768.6A CN105193527B (en) | 2015-05-11 | 2015-05-11 | A kind of method of EBM metals 3D printing personalization human body femoral prosthesis oversleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510232768.6A CN105193527B (en) | 2015-05-11 | 2015-05-11 | A kind of method of EBM metals 3D printing personalization human body femoral prosthesis oversleeve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105193527A true CN105193527A (en) | 2015-12-30 |
| CN105193527B CN105193527B (en) | 2017-03-15 |
Family
ID=54941750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510232768.6A Expired - Fee Related CN105193527B (en) | 2015-05-11 | 2015-05-11 | A kind of method of EBM metals 3D printing personalization human body femoral prosthesis oversleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105193527B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105434092A (en) * | 2016-01-06 | 2016-03-30 | 上海昕健医疗技术有限公司 | External fixation support based on three-dimensional printing and manufacturing method thereof |
| CN105796211A (en) * | 2016-05-19 | 2016-07-27 | 北京爱康宜诚医疗器材有限公司 | Prosthesis component and manufacturing method thereof |
| CN105997313A (en) * | 2016-05-03 | 2016-10-12 | 柴凡 | 3D printed breast external prosthesis and manufacturing method |
| CN107334544A (en) * | 2017-02-13 | 2017-11-10 | 上海威宁整形制品有限公司 | A kind of method for the expander for meeting biomethanics using the customization of laser scanning, finite element analysis and 3D printing technique |
| CN107638237A (en) * | 2017-10-27 | 2018-01-30 | 吉林大学 | Implanting artificial limb attachment means |
| CN110772359A (en) * | 2019-10-15 | 2020-02-11 | 佛山市第一人民医院（中山大学附属佛山医院） | Manufacturing method of joint prosthesis and manufacturing method of test mold thereof |
| US11000360B2 (en) | 2018-09-14 | 2021-05-11 | Onkos Surgical, Inc. | Systems and methods for attaching soft tissue to an implant |
| CN112891029A (en) * | 2021-01-15 | 2021-06-04 | 常州华众生物科技有限公司 | 3D printing biological knee joint prosthesis and preparation method thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070118243A1 (en) * | 2005-10-14 | 2007-05-24 | Vantus Technology Corporation | Personal fit medical implants and orthopedic surgical instruments and methods for making |
| CN101249028A (en) * | 2008-03-03 | 2008-08-27 | 北京吉马飞科技发展有限公司 | Electron beam melting preparation of personalized titanium made material craniomaxillary bone repairing body |
| CN101545121A (en) * | 2008-03-26 | 2009-09-30 | 王庆五 | Method and device for electron beam electroforming rapid prototyping |
| JP2010261072A (en) * | 2009-05-07 | 2010-11-18 | Htl:Kk | Method for forming shape with electron beam |
| CN101991876A (en) * | 2009-08-14 | 2011-03-30 | 机械科学研究总院先进制造技术研究中心 | Manufacture method of prosthesis with self-antibacterial action |
| CN102415916A (en) * | 2011-07-29 | 2012-04-18 | 首都医科大学附属北京口腔医院 | Correction method for preventing excessive stress concentration of teeth roots and jaws in process of orthodontic treatment |
| CN102764889A (en) * | 2012-07-13 | 2012-11-07 | 中国航空工业集团公司北京航空制造工程研究所 | Electron beam synchronous powder feeding and quick forming method |
| CN103501731A (en) * | 2011-02-25 | 2014-01-08 | 优化澳正公司 | A computer-implemented method, a computing device and a computer readable storage medium for providing alignment information data for the alignment of an orthopaedic implant for a joint of a patient |
| CN103860294A (en) * | 2014-03-07 | 2014-06-18 | 北京大学第三医院 | Individualized design and manufacturing system and method for full knee joint replacing prosthesis |
| US20150034123A1 (en) * | 2013-07-31 | 2015-02-05 | Limacorporate S.P.A. | Method and apparatus for the recovery and regeneration of metal powder in EBM applications |
-
2015
- 2015-05-11 CN CN201510232768.6A patent/CN105193527B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070118243A1 (en) * | 2005-10-14 | 2007-05-24 | Vantus Technology Corporation | Personal fit medical implants and orthopedic surgical instruments and methods for making |
| CN101249028A (en) * | 2008-03-03 | 2008-08-27 | 北京吉马飞科技发展有限公司 | Electron beam melting preparation of personalized titanium made material craniomaxillary bone repairing body |
| CN101545121A (en) * | 2008-03-26 | 2009-09-30 | 王庆五 | Method and device for electron beam electroforming rapid prototyping |
| JP2010261072A (en) * | 2009-05-07 | 2010-11-18 | Htl:Kk | Method for forming shape with electron beam |
| CN101991876A (en) * | 2009-08-14 | 2011-03-30 | 机械科学研究总院先进制造技术研究中心 | Manufacture method of prosthesis with self-antibacterial action |
| CN103501731A (en) * | 2011-02-25 | 2014-01-08 | 优化澳正公司 | A computer-implemented method, a computing device and a computer readable storage medium for providing alignment information data for the alignment of an orthopaedic implant for a joint of a patient |
| CN102415916A (en) * | 2011-07-29 | 2012-04-18 | 首都医科大学附属北京口腔医院 | Correction method for preventing excessive stress concentration of teeth roots and jaws in process of orthodontic treatment |
| CN102764889A (en) * | 2012-07-13 | 2012-11-07 | 中国航空工业集团公司北京航空制造工程研究所 | Electron beam synchronous powder feeding and quick forming method |
| US20150034123A1 (en) * | 2013-07-31 | 2015-02-05 | Limacorporate S.P.A. | Method and apparatus for the recovery and regeneration of metal powder in EBM applications |
| CN103860294A (en) * | 2014-03-07 | 2014-06-18 | 北京大学第三医院 | Individualized design and manufacturing system and method for full knee joint replacing prosthesis |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105434092A (en) * | 2016-01-06 | 2016-03-30 | 上海昕健医疗技术有限公司 | External fixation support based on three-dimensional printing and manufacturing method thereof |
| CN105997313A (en) * | 2016-05-03 | 2016-10-12 | 柴凡 | 3D printed breast external prosthesis and manufacturing method |
| CN105997313B (en) * | 2016-05-03 | 2017-10-27 | 柴凡 | External prosthese of 3D printing breast and preparation method thereof |
| CN105796211A (en) * | 2016-05-19 | 2016-07-27 | 北京爱康宜诚医疗器材有限公司 | Prosthesis component and manufacturing method thereof |
| CN105796211B (en) * | 2016-05-19 | 2018-09-18 | 北京爱康宜诚医疗器材有限公司 | Prosthetic component and its manufacturing method |
| CN107334544A (en) * | 2017-02-13 | 2017-11-10 | 上海威宁整形制品有限公司 | A kind of method for the expander for meeting biomethanics using the customization of laser scanning, finite element analysis and 3D printing technique |
| CN107638237A (en) * | 2017-10-27 | 2018-01-30 | 吉林大学 | Implanting artificial limb attachment means |
| US11000360B2 (en) | 2018-09-14 | 2021-05-11 | Onkos Surgical, Inc. | Systems and methods for attaching soft tissue to an implant |
| US11737861B2 (en) | 2018-09-14 | 2023-08-29 | Onkos Surgical, Inc. | Systems and methods for attaching soft tissue to an implant |
| CN110772359A (en) * | 2019-10-15 | 2020-02-11 | 佛山市第一人民医院（中山大学附属佛山医院） | Manufacturing method of joint prosthesis and manufacturing method of test mold thereof |
| CN112891029A (en) * | 2021-01-15 | 2021-06-04 | 常州华众生物科技有限公司 | 3D printing biological knee joint prosthesis and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105193527B (en) | 2017-03-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105193527A (en) | Method for performing EBM metal 3D printing on personalized human body thighbone prosthesis sleeve | |
| Methani et al. | The potential of additive manufacturing technologies and their processing parameters for the fabrication of all‐ceramic crowns: A review | |
| CN104647752B (en) | Three-dimensional printing device | |
| Van Noort | The future of dental devices is digital | |
| Lima et al. | Removable partial dentures: use of rapid prototyping | |
| CN104729439B (en) | There is the coordinate measuring machine of high-precision 3D printing | |
| CN110480792B (en) | Manufacturing method, system, 3D printing device and image processing method | |
| CN107900332A (en) | Dentistry plants the 3D printing method of stent | |
| CN107428082A (en) | The production successively automatic generation method of the control instruction of construction device and control instruction generation unit | |
| WO2015107333A1 (en) | 3d printing of facial prostheses | |
| JP7435696B2 (en) | Processing equipment, processing method, marking method, and modeling method | |
| CN105034360A (en) | Intergrated multi-material implants and methods of manufacture | |
| Laverty et al. | The use of 3D metal printing (direct metal laser sintering) in removable prosthodontics | |
| CN107805066A (en) | The processing method of bioceramic part based on selective laser sintering | |
| CN110369874A (en) | Three-dimensional digital rail laser repair device and restorative procedure | |
| CN105799172A (en) | Equipment and method for 3D printing of architectural ornaments | |
| CN107949470A (en) | Method and apparatus for manufacturing three-dimensional body | |
| Galba et al. | Additive manufacturing of metals using powder-based technology | |
| Gali et al. | 3D Printing: the future technology in prosthodontics | |
| Gibson et al. | Applications for additive manufacture | |
| Lee et al. | An efficient and accurate approach for fabricating dental implant surgical guides | |
| KR101761316B1 (en) | Apparatus for manufacturing Tooth rest | |
| Mustafa et al. | A design framework for build process planning in DMLS | |
| Abboud et al. | Computer-aided manufacturing in medicine | |
| KR101740541B1 (en) | Apparatus for manufacturing implant prostheses |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160401 Address after: 213000 Wujin, Jiangsu Province Lake Road, No. 68, No. Applicant after: Liu Hongwei Applicant after: Nanjing Normal University Applicant after: Gu Yong Address before: 213000 Wujin, Jiangsu Province Lake Road, No. 68, No. Applicant before: Liu Hongwei Applicant before: Gu Yong |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170315 Termination date: 20170511 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |