CN115674688A - High-precision bionic bone 3D printing system and printing method thereof - Google Patents
High-precision bionic bone 3D printing system and printing method thereof Download PDFInfo
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Abstract
The invention discloses a high-precision bionic bone 3D printing system and a printing method thereof, wherein the system comprises a printing parameter acquisition terminal, a printing data processing terminal, a 3D printing terminal and a remote control terminal; according to the invention, the three-view image data of the bone to be printed is collected as the printing parameter data, the printing parameter data is subjected to the sorting including format standardization and abnormal cleaning and the preprocessing including data transformation and data protocols, so that the collected printing parameter data is more comprehensive, the redundancy and interference of the data are removed, the data is more accurate, the characteristic parameters of the data are extracted, the 3D modeling is carried out on the basis of the characteristic parameter data of the three views of the object, the 3D model is optimized, and finally the 3D printing work of the bionic bone entity is carried out on the basis of the optimized model, so that the printed bionic bone entity has higher precision and higher printing efficiency, the efficient printing of the bionic bone entity can be realized, and the popularization and application are facilitated.
Description
Technical Field
The invention relates to the technical field of 3D printing, in particular to a high-precision bionic bone 3D printing system and a printing method thereof.
Background
One of 3D printing, which is a rapid prototyping technology, is also called additive manufacturing, which is a technology for constructing an object by layer-by-layer printing using an adhesive material such as powdered metal or plastic based on a digital model file, and 3D printing is generally implemented by a digital technical material printer, is often used to manufacture a model in the fields of mold manufacturing, industrial design, and the like, and is then gradually used for direct manufacturing of some products, and there are already parts printed using this technology, which is applied to the fields of jewelry, footwear, industrial design, construction, engineering and construction, automobiles, aerospace, dental and medical industries, education, geographic information systems, civil engineering, guns, and others.
Along with the continuous development of economy, science and technology and medicine, the average life of people is constantly promoted, old-age osteoarthritis is serious day by day, simultaneously, accident such as industry, traffic, motion also can cause certain bone wound, these problems all influence human quality of life, the implantation or the replacement of bionical bone can alleviate people's pain greatly, improve bone injury patient's quality of life, the bionical bone of present research and application mainly utilizes the 3D printer according to the image data of patient's skeleton, prints patient's skeleton model according to 1.
Most of the existing bionic bone 3D printing systems are single in function, the collection of bone structure data to be printed is not comprehensive enough, the collected data are not effectively preprocessed, collected data parameters are not accurate enough, a high-precision 3D printing model cannot be constructed, the precision of a bionic bone printing entity is not enough, the actual application requirements cannot be met, the whole 3D modeling and printing process is complex in flow, low in efficiency, incapable of achieving efficient printing and inconvenient to popularize and apply widely, and therefore the high-precision bionic bone 3D printing system and the printing method thereof are provided to solve the problems in the prior art.
Disclosure of Invention
In view of the above problems, the present invention provides a high-precision bionic bone 3D printing system and a printing method thereof, which solve the problems of insufficient precision and low printing efficiency of a bionic bone entity printed by the existing bionic bone 3D printing system.
In order to achieve the purpose of the invention, the invention is realized by the following technical scheme: a high-precision bionic bone 3D printing system comprises a printing parameter acquisition terminal, a printing data processing terminal, a 3D printing terminal and a remote control terminal, wherein the printing data processing terminal is respectively in wireless connection with the printing parameter acquisition terminal and the 3D printing terminal, the remote control terminal is in wireless connection with the 3D printing terminal, and the printing parameter acquisition terminal comprises an image acquisition module for acquiring bone image data to be printed as printing parameter data, a data sorting module for sorting the acquired printing parameter data and a first data transmission module for transmitting the printing parameter data to the printing data processing terminal;
the printing data processing terminal comprises a data preprocessing module for preprocessing received printing parameter data, a characteristic parameter acquisition module for extracting characteristics of the preprocessed data and a second data transmission module for transmitting the extracted characteristic parameters to the 3D printing terminal;
the 3D printing terminal comprises a model optimization module used for establishing and optimizing a bionic bone 3D model, a 3D printing module used for printing a bionic bone entity, a man-machine interaction module used for providing a man-machine interaction function for a user and a third data transmission module used for carrying out data transmission with the remote control terminal.
The further improvement is that: the image acquisition module comprises a data acquisition unit for acquiring CT image data of bones of a patient and a data export unit for exporting the acquired CT image data to the data sorting module as printing parameter data, wherein the CT image data of the bones of the patient are three-view CT pictures of the bones.
The further improvement is that: the data arrangement module comprises a standardization unit for carrying out format standardization processing on the acquired printing parameter data and an exception clearing unit for clearing exception data in the standardized data, and the standardization unit is used for carrying out format standardization on the data based on MATLAB software.
The further improvement lies in that: the data preprocessing module comprises a data conversion unit for performing data conversion on the received printing parameter data and a data reduction unit for performing data reduction processing on the printing parameter data after the data conversion, wherein the data conversion unit converts the data into a form suitable for subsequent characteristic parameter acquisition processing in a smooth aggregation, data generalization and normalization mode, and the specific mode of the data reduction is the characteristic reduction.
The further improvement lies in that: the characteristic parameter acquisition module comprises a data subdivision unit for subdividing the preprocessed data, a characteristic marking unit for marking the characteristics of the subdivided data and a parameter acquisition unit for extracting the marked characteristic parameters, the data subdivision unit subdivides the preprocessed data by using a Delaunay subdivision algorithm, the characteristic marking unit performs characteristic marking on the picture data at different visual angles, and the parameter acquisition unit acquires the characteristic parameters of bones according to the characteristic marking result.
The further improvement lies in that: the model optimization module comprises a 3D model building unit for building a bionic bone 3D model, a printing simulation unit for simulating a printing process and a model optimization unit for optimizing the bionic bone 3D model, the 3D model building unit builds the bionic bone 3D model according to the obtained bone characteristic parameters, the printing simulation unit carries out printing process simulation according to the bionic bone 3D model, and the model optimization unit carries out optimization including data smoothing, hole filling, cutting and coordinate correction processing on the bionic bone 3D model according to simulation results.
The further improvement lies in that: the 3D printing module comprises a 3D printer and a monitoring unit, the 3D printer is used for conducting 3D printing on the bionic bone entity, the monitoring unit is used for monitoring the printing process in real time, the 3D printer conducts memorable layered slicing on the bionic bone 3D model by means of an adaptive layered algorithm, printing is completed according to G-CODE information provided by layered slicing results, and 3D printing on the bionic bone entity is conducted, and the monitoring unit is a high-definition camera.
The further improvement is that: the man-machine interaction module is including the speech player who is used for the LCD of display system control parameter, is used for the control keyboard of input system control parameter and is used for carrying on system voice prompt, remote control terminal includes intelligent mobile phone and panel computer, all install the host computer control APP that is used for controlling 3D printing terminal on mobile phone and the panel computer.
The further improvement is that: the first data transmission module and the second data transmission module both adopt a short-distance wireless transmission technology based on Bluetooth or WiFi to perform data wireless transmission between the terminals, and the third data transmission module adopts a long-distance wireless transmission technology based on GPRS wireless communication or spread spectrum microwave communication to perform data wireless transmission.
A high-precision bionic bone 3D printing method comprises the following steps: the method comprises the steps that firstly, a printing parameter acquisition terminal is used for acquiring three-view CT image data of a bone to be printed and wirelessly sending the acquired three-view CT image data to a printing data processing terminal as 3D printing parameter data, the printing data processing terminal receives the 3D printing parameter data, the 3D printing parameter data are preprocessed, then the preprocessed 3D printing parameter data are subjected to characteristic parameter extraction, extracted characteristic parameters are sent to the 3D printing terminal, after the 3D printing terminal receives the extracted characteristic parameters, firstly, the three-view data-based bionic bone 3D modeling is carried out according to the received characteristic parameters and model optimization is carried out, then, a 3D printer is used for carrying out 3D printing on a bionic bone entity according to the optimized bionic bone 3D model, and a bionic bone finished product is obtained after printing is finished.
The beneficial effects of the invention are as follows: according to the invention, the three-view image data of the bone to be printed is collected as the printing parameter data, the printing parameter data is subjected to the sorting including format standardization and abnormal cleaning and the preprocessing including data transformation and data protocols, so that the collected printing parameter data is more comprehensive, the redundancy and interference of the data are removed, the data is more accurate, the characteristic parameters of the data are extracted, the 3D modeling is carried out on the basis of the characteristic parameter data of the three views of the object, the 3D model is optimized, and finally the 3D printing work of the bionic bone entity is carried out on the basis of the optimized model, so that the printed bionic bone entity has higher precision and higher printing efficiency, the efficient printing of the bionic bone entity can be realized, and the popularization and application are facilitated.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic diagram of the system architecture of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described in detail below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1, the embodiment provides a high-precision bionic bone 3D printing system, which includes a printing parameter acquisition terminal, a printing data processing terminal, a 3D printing terminal and a remote control terminal, wherein the printing parameter acquisition terminal is wirelessly connected with the printing data processing terminal and performs wireless data transmission, the printing data processing terminal is wirelessly connected with the 3D printing terminal and performs wireless data transmission, the printing parameter acquisition terminal includes an image acquisition module, a data sorting module and a first data transmission module, wherein the image acquisition module acquires bone image data to be printed as printing parameter data, the data sorting module sorts the acquired printing parameter data, the first data transmission module transmits the printing parameter data to the printing data processing terminal, and the first data transmission module performs wireless data transmission between the printing parameter acquisition terminal and the printing data processing terminal by using a short-distance wireless transmission technology based on bluetooth;
the printing data processing terminal comprises a data preprocessing module, a characteristic parameter acquiring module and a second data transmission module, wherein the data preprocessing module preprocesses printing parameter data received from the first data transmission module, the characteristic parameter acquiring module extracts characteristics of the preprocessed data, the second data transmission module transmits the extracted characteristic parameters to the 3D printing terminal, and the second data transmission module wirelessly transmits the data between the printing data processing terminal and the 3D printing terminal by adopting a short-distance wireless transmission technology based on WiFi;
the 3D printing terminal comprises a model optimization module, a 3D printing module, a human-computer interaction module and a third data transmission module, wherein the model optimization module establishes and optimizes the bionic bone 3D model, the 3D printing module performs 3D printing of a bionic bone entity, the human-computer interaction module provides a human-computer interaction function for a user and a system, the third data transmission module provides a remote data transmission function for the remote control terminal and the 3D printing terminal, and the third data transmission module performs data wireless transmission by adopting a remote wireless transmission technology based on GPRS wireless communication.
The image acquisition module comprises a data acquisition unit and a data export unit, CT image data of bones of a patient are acquired through the data acquisition unit, the acquired CT image data are exported to the data arrangement module as printing parameter data through the data export unit, and the CT image data of the bones of the patient are three-view CT pictures of the bones.
The data arrangement module comprises a standardization unit and an exception clearing unit, format standardization processing is carried out on the acquired printing parameter data through the standardization unit, format standardization is carried out on the data through the standardization unit based on MATLAB software, and then the exception data in the data after the standardization processing is cleared through the exception clearing unit.
The data preprocessing module comprises a data conversion unit for performing data conversion on the received printing parameter data and a data reduction unit for performing data reduction processing on the printing parameter data after the data conversion, wherein the data conversion unit converts the data into a form suitable for subsequent characteristic parameter acquisition processing in a smooth aggregation, data generalization and normalization mode, and the specific mode of the data reduction is the characteristic reduction.
The characteristic parameter acquisition module comprises a data subdivision unit, a characteristic marking unit and a parameter acquisition unit, wherein the data subdivision unit subdivides the preprocessed data by using a Delaunay subdivision algorithm, the characteristic marking unit performs characteristic marking on the picture data at different visual angles, and the parameter acquisition unit acquires characteristic parameters of bones according to a characteristic marking result.
The model optimization module comprises a 3D model building unit, a printing simulation unit and a model optimization unit, wherein the 3D model building unit is used for building a bionic bone 3D model according to the obtained bone characteristic parameters, the printing simulation unit is used for carrying out printing process simulation according to the bionic bone 3D model, and then the model optimization unit is used for carrying out optimization including data smoothing, hole filling, cutting and coordinate correction processing on the bionic bone 3D model according to a simulation result.
The 3D printing module comprises a 3D printer and a monitoring unit, the 3D printer utilizes an adaptive layering algorithm to perform memorability layering slicing on the bionic bone 3D model, printing is completed according to G-CODE information provided by layering slicing results, 3D printing of the bionic bone entity is performed, and the monitoring unit is a high-definition camera and performs real-time monitoring on the 3D printing process.
The man-machine interaction module comprises a liquid crystal display for displaying system control parameters, a control keyboard for inputting the system control parameters and a voice player for performing system voice prompt, the remote control terminal comprises an intelligent mobile phone and a tablet personal computer, a host control APP for controlling the 3D printing terminal is installed on the mobile phone and the tablet personal computer, and the user remote control printing work is facilitated.
The embodiment also provides a high-precision bionic bone 3D printing method, which comprises the following steps: the method comprises the steps that firstly, three-view CT image data of a bone to be printed are collected by a printing parameter acquisition terminal, the collected three-view CT image data serve as 3D printing parameter data and are wirelessly sent to a printing data processing terminal, the 3D printing parameter data are preprocessed after the 3D printing parameter data are received by the printing data processing terminal, then the preprocessed 3D printing parameter data are subjected to characteristic parameter extraction, extracted characteristic parameters are sent to a 3D printing terminal, after the 3D printing terminal receives the extracted characteristic parameters, firstly, the three-view data-based bionic bone 3D modeling is carried out according to the received characteristic parameters, model optimization is carried out, then, 3D printing of a bionic bone entity is carried out by a 3D printer according to the optimized bionic bone 3D model, and a bionic bone finished product is obtained after printing is finished.
Example two
Referring to fig. 1, the embodiment provides a high-precision bionic bone 3D printing system, which includes a printing parameter acquisition terminal, a printing data processing terminal, a 3D printing terminal and a remote control terminal, wherein the printing parameter acquisition terminal is wirelessly connected with the printing data processing terminal and performs wireless data transmission, the printing data processing terminal is wirelessly connected with the 3D printing terminal and performs wireless data transmission, the printing parameter acquisition terminal includes an image acquisition module, a data sorting module and a first data transmission module, wherein the image acquisition module acquires bone image data to be printed as printing parameter data, the data sorting module sorts the acquired printing parameter data, the first data transmission module transmits the printing parameter data to the printing data processing terminal, and the first data transmission module performs wireless data transmission between the printing parameter acquisition terminal and the printing data processing terminal by using a short-distance wireless transmission technology based on WiFi;
the printing data processing terminal comprises a data preprocessing module, a characteristic parameter acquiring module and a second data transmission module, wherein the data preprocessing module preprocesses printing parameter data received from the first data transmission module, the characteristic parameter acquiring module extracts characteristics of the preprocessed data, and the second data transmission module transmits the extracted characteristic parameters to the 3D printing terminal, wherein the second data transmission module carries out wireless data transmission between the printing data processing terminal and the 3D printing terminal by adopting a short-distance wireless transmission technology based on Bluetooth;
the 3D printing terminal comprises a model optimization module, a 3D printing module, a human-computer interaction module and a third data transmission module, wherein the model optimization module establishes and optimizes a bionic bone 3D model, the 3D printing module performs 3D printing of a bionic bone entity, the human-computer interaction module provides a human-computer interaction function for a user and a system, the third data transmission module provides a remote data transmission function for the remote control terminal and the 3D printing terminal, and the third data transmission module performs data wireless transmission by adopting a remote wireless transmission technology based on spread spectrum microwave communication.
The image acquisition module comprises a data acquisition unit and a data export unit, CT image data of bones of a patient are acquired through the data acquisition unit, the acquired CT image data are exported to the data arrangement module as printing parameter data through the data export unit, and the CT image data of the bones of the patient are three-view CT pictures of the bones.
The data arrangement module comprises a standardization unit and an exception clearing unit, format standardization processing is carried out on the acquired printing parameter data through the standardization unit, format standardization is carried out on the data through the standardization unit based on MATLAB software, and then the exception data in the data after the standardization processing is cleared through the exception clearing unit.
The data preprocessing module comprises a data conversion unit for performing data conversion on the received printing parameter data and a data reduction unit for performing data reduction processing on the printing parameter data after the data conversion, the data conversion unit converts the data into a form suitable for subsequent characteristic parameter acquisition processing in a smooth aggregation, data generalization and normalization mode, and the specific mode of the data reduction is the characteristic reduction.
The characteristic parameter acquisition module comprises a data subdivision unit, a characteristic marking unit and a parameter acquisition unit, wherein the data subdivision unit subdivides the preprocessed data by using a Delaunay subdivision algorithm, the characteristic marking unit performs characteristic marking on the picture data at different visual angles, and the parameter acquisition unit acquires characteristic parameters of bones according to a characteristic marking result.
The model optimization module comprises a 3D model construction unit, a printing simulation unit and a model optimization unit, a bionic bone 3D model is constructed through the 3D model construction unit according to the obtained bone characteristic parameters, then the printing simulation unit carries out printing process simulation according to the bionic bone 3D model, and then the model optimization unit carries out optimization including data smoothing, hole filling, cutting and coordinate correction processing on the bionic bone 3D model according to simulation results.
The 3D printing module comprises a 3D printer and a monitoring unit, the 3D printer utilizes an adaptive layering algorithm to perform memorability layering slicing on the bionic bone 3D model, printing is completed according to G-CODE information provided by layering slicing results, 3D printing of the bionic bone entity is performed, and the monitoring unit is a high-definition camera and monitors the 3D printing process in real time.
The man-machine interaction module comprises a liquid crystal display for displaying system control parameters, a control keyboard for inputting the system control parameters and a voice player for performing system voice prompt, the remote control terminal comprises an intelligent mobile phone and a tablet personal computer, a host control APP for controlling the 3D printing terminal is installed on the mobile phone and the tablet personal computer, and the user remote control printing work is facilitated.
The embodiment also provides a high-precision bionic bone 3D printing method, which comprises the following steps: acquiring three-view CT image data of a bone to be printed by using a printing parameter acquisition terminal, wirelessly transmitting the acquired three-view CT image data as 3D printing parameter data to a printing data processing terminal, preprocessing the 3D printing parameter data after the 3D printing parameter data is received by the printing data processing terminal, extracting characteristic parameters of the preprocessed 3D printing parameter data, transmitting the extracted characteristic parameters to a 3D printing terminal, performing three-view data-based bionic bone 3D modeling and model optimization according to the received characteristic parameters after the extracted characteristic parameters are received by the 3D printing terminal, performing 3D printing of a bionic bone entity by using a 3D printer according to the optimized bionic bone 3D model, and obtaining the bionic bone finished product after printing
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.
Claims (10)
1. The utility model provides a high accuracy bionic bone 3D printing system which characterized in that: the printing parameter acquisition terminal comprises an image acquisition module for acquiring skeleton image data to be printed as printing parameter data, a data arrangement module for arranging the acquired printing parameter data and a first data transmission module for transmitting the printing parameter data to the printing data processing terminal;
the printing data processing terminal comprises a data preprocessing module for preprocessing received printing parameter data, a characteristic parameter acquisition module for extracting characteristics of the preprocessed data and a second data transmission module for transmitting the extracted characteristic parameters to the 3D printing terminal;
the 3D printing terminal comprises a model optimization module used for establishing and optimizing a bionic bone 3D model, a 3D printing module used for printing a bionic bone entity, a man-machine interaction module used for providing a man-machine interaction function for a user and a third data transmission module used for carrying out data transmission with the remote control terminal.
2. The high-precision bionic bone 3D printing system according to claim 1, characterized in that: the image acquisition module comprises a data acquisition unit for acquiring CT image data of bones of a patient and a data export unit for exporting the acquired CT image data to the data sorting module as printing parameter data, wherein the CT image data of the bones of the patient are three-view CT pictures of the bones.
3. The high-precision bionic bone 3D printing system according to claim 1, characterized in that: the data arrangement module comprises a standardization unit and an exception clearing unit, the standardization unit is used for carrying out format standardization on the acquired printing parameter data, the exception clearing unit is used for clearing exception data in the data after the standardization processing, and the standardization unit is used for carrying out format standardization on the data based on MATLAB software.
4. The high-precision bionic bone 3D printing system according to claim 1, characterized in that: the data preprocessing module comprises a data conversion unit for performing data conversion on the received printing parameter data and a data reduction unit for performing data reduction processing on the printing parameter data after the data conversion, wherein the data conversion unit converts the data into a form suitable for subsequent characteristic parameter acquisition processing in a smooth aggregation, data generalization and normalization mode, and the specific mode of the data reduction is the characteristic reduction.
5. The high-precision bionic bone 3D printing system according to claim 1, characterized in that: the characteristic parameter acquisition module comprises a data subdivision unit for subdividing preprocessed data, a characteristic marking unit for marking the characteristics of the subdivided data and a parameter acquisition unit for extracting the marked characteristic parameters, wherein the data subdivision unit subdivides the preprocessed data by using a Delaunay subdivision algorithm, the characteristic marking unit performs characteristic marking on picture data at different visual angles, and the parameter acquisition unit acquires the characteristic parameters of bones according to the characteristic marking result.
6. The high-precision bionic bone 3D printing system according to claim 1, characterized in that: the model optimization module comprises a 3D model building unit for building a bionic bone 3D model, a printing simulation unit for simulating a printing process and a model optimization unit for optimizing the bionic bone 3D model, the 3D model building unit builds the bionic bone 3D model according to the obtained bone characteristic parameters, the printing simulation unit carries out printing process simulation according to the bionic bone 3D model, and the model optimization unit carries out optimization including data smoothing, hole filling, cutting and coordinate correction processing on the bionic bone 3D model according to simulation results.
7. The high-precision bionic bone 3D printing system according to claim 1, characterized in that: the 3D printing module comprises a 3D printer and a monitoring unit, the 3D printer is used for conducting 3D printing on the bionic bone entity, the monitoring unit is used for monitoring the printing process in real time, the 3D printer conducts memorability layering slicing on the bionic bone 3D model through an adaptive layering algorithm, printing is completed according to G-CODE information provided by layering slicing results, and 3D printing on the bionic bone entity is conducted, and the monitoring unit is a high-definition camera.
8. The high-precision bionic bone 3D printing system according to claim 1, characterized in that: the man-machine interaction module is including the speech player who is used for the LCD of display system control parameter, is used for the control keyboard of input system control parameter and is used for carrying on system voice prompt, remote control terminal includes intelligent mobile phone and panel computer, all install the host computer control APP that is used for controlling 3D printing terminal on mobile phone and the panel computer.
9. The high-precision bionic bone 3D printing system according to claim 1, characterized in that: the first data transmission module and the second data transmission module both adopt a short-distance wireless transmission technology based on Bluetooth or WiFi to perform data wireless transmission between the terminals, and the third data transmission module adopts a long-distance wireless transmission technology based on GPRS wireless communication or spread spectrum microwave communication to perform data wireless transmission.
10. The high-precision bionic bone 3D printing method applied to the claim 1 is characterized by comprising the following steps of: the method comprises the steps that firstly, a printing parameter acquisition terminal is used for acquiring three-view CT image data of a bone to be printed and wirelessly sending the acquired three-view CT image data to a printing data processing terminal as 3D printing parameter data, the printing data processing terminal receives the 3D printing parameter data, the 3D printing parameter data are preprocessed, then the preprocessed 3D printing parameter data are subjected to characteristic parameter extraction, extracted characteristic parameters are sent to the 3D printing terminal, after the 3D printing terminal receives the extracted characteristic parameters, firstly, the three-view data-based bionic bone 3D modeling is carried out according to the received characteristic parameters and model optimization is carried out, then, a 3D printer is used for carrying out 3D printing on a bionic bone entity according to the optimized bionic bone 3D model, and a bionic bone finished product is obtained after printing is finished.
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