KR102271856B1 - Device for fabricating medical splint and method thereof - Google Patents

Abstract

The present invention relates to an apparatus for manufacturing a medical splint and a method for manufacturing the same. The apparatus for manufacturing a medical splint according to an embodiment of the present invention obtains a medical image image including the affected part of a target patient or pet generated from an imaging unit, and three-dimensionally models the obtained medical image image, and the A manufacturer computer simulating at least one or more recommended splints using a three-dimensional modeled medical image image to fix or support the affected part of the target patient or pet and have an optimized structure for securing breathability and strength; and a 3D printing device connected to the manufacturer's computer to output the at least one recommended splint.

Description

Device for fabricating medical splint and method thereof

The present invention relates to a medical device, and more particularly, to a device for manufacturing a splint and a method for manufacturing the same.

In general, a medical splint, which is a medical aid, is used when a body bone is cracked or fractured, or when soft tissues such as joints, muscles, and tendons are damaged. It is used for the purpose of joining or fixing damaged soft tissue, or correcting a bent or crooked posture.

The medical auxiliary device includes a method of injection through a mold, a method of manufacturing a material by cutting 3 to 5 axes, a method of using plaster casting and a compression bandage, and the like. In the case of injection through the mold, since the shape of the splint is uniform and mass-produced, it is difficult to apply the splint optimized to the patient's body structure. In addition, in the case of the manufacturing method by cutting, it is possible to manufacture an optimized splint, but there is a limitation in that a large amount of material is consumed and only one material is used, and the cost is high, mass production is difficult, and the manufacturing speed is slow.

In addition, in the case of the product using the plaster casting and compression bandage, as a certain part of the body is fixed and the degree of freedom is added to the rest of the body, the fixed parts are separated into several parts, and the use is easy as they are connected with a strap and fastened firmly. It is complicated, and there is a problem in wearability and aesthetics. In addition, when using the plaster cast or compression bandage, a considerable amount of time is required because the splint must be fixed to the affected area by wrapping the affected area with sufficient thickness, and since ventilation is not made for the area covered with the plaster or the bandage, itching or skin disease The same side effects are of concern.

In addition, when trying to fix the fracture site with a bandage or plaster for pet animals such as dogs and cats, the pet responds more sensitively to treatment than humans, so it is better to accurately and firmly fix the fracture site of the pet. It can be difficult. In addition, the splint manufactured by conventional methods is supported and fixed not only at the fracture site or the damaged area of the soft tissue, but also around the affected area, thereby compressing the fracture site or the normal joint around the damaged area of the soft tissue. And it is fixed so that the discomfort of the patient or pet can be aggravated when the patient is active after the procedure.

Therefore, it is possible to quickly order a customized medical splint considering the body type of the patient or pet, reduce the patient's discomfort when wearing the medical splint, secure flexibility and strength, and the technology to manufacture a breathable medical splint. need.

Therefore, the technical problem to be solved by the present invention is that it is possible to quickly order a customized medical splint in consideration of the body type of the patient or pet, reduce the discomfort of the patient when wearing the medical splint, and secure flexibility and strength, SUMMARY OF THE INVENTION To provide an apparatus for manufacturing an improved medical splint with breathability.

In addition, another technical problem to be solved by the present invention is to provide a method for manufacturing a medical splint having the above-described advantages.

According to an embodiment of the present invention, a medical imaging image including an affected part of a target patient or pet generated from an imaging unit is obtained, the obtained medical imaging image is 3D modeled, and the 3D modeled medical image is obtained. A manufacturer computer that uses the image to fix or support the affected part of the target patient and simulate at least one or more recommended splints having an optimized structure for securing breathability and strength; and a 3D printing device connected to the manufacturer's computer and outputting the at least one recommended splint may be provided.

In one embodiment, the manufacturer computer determines the shape of the first splint covering the whole or part of the affected part of the target patient or pet from the acquired medical image image, and considering the shape of the first splint, the An optimized structure for securing breathability and strength may be determined, and the second splint may be determined by applying the optimized structure for securing the breathability and strength to the first splint. The optimized structure for securing the air permeability and strength may be determined by combining at least one or more of a double structure having different strengths of the shape, size and pattern of pores for securing the air permeability and the inner and outer surfaces of the splint. . The manufacturer computer three-dimensionally models the first splint or the second splint to be worn on the affected part of the target patient or pet of the three-dimensional modeled medical image image, and the first splint or the second splint is worn The three-dimensional modeled medical image image may be displayed. The manufacturer computer transmits the simulation results for the at least one or more recommendation splints to the doctor or client computer, and reflects the first feedback information of the doctor or the client computer for the at least one recommendation splint, At least one or more of the shape and color of the recommended splint, the shape, size, and pattern of pores for securing the air permeability may be corrected or changed, and information on the modified or changed recommended splint may be transmitted to the doctor in charge or the client computer. . The manufacturer computer may print the second feedback information on the surface of the recommendation splint by reflecting the second feedback information of the target patient or a person related to the target patient. The medical image image may be an image file in a DICOM (Digital Imaging and Communications in Medicine) file format.

In an embodiment, the manufacturer computer may acquire the medical image image based on a block chain structure. The information of the medical image image may be generated and verified as a block and connected to a block chain.

The imaging unit is an X-ray apparatus, a computed tomography (CT or computerized axial tomography) apparatus, a magnetic resonance imaging (MRI) apparatus, an optical coherence tomography apparatus, an ultrasound imaging apparatus positron emission tomography (PET). ) may include at least one of a device, a 3D scanner, and a camera.

According to another embodiment of the present invention, an imaging unit for photographing the affected part of the target patient or pet; a client computer connected to the imaging unit to convert a medical image image including the affected part of the target patient or pet into an electrical signal; Obtaining the medical imaging image from the client computer, 3D modeling the obtained medical imaging image, and using the 3D modeled medical imaging image to fix or support the affected part of the target patient or pet and breathable and a manufacturer computer simulating at least one or more recommended splints having an optimized structure for securing strength. and a 3D printing device connected to the manufacturer's computer to output the at least one recommended splint. A system for manufacturing a medical splint may be provided.

According to another embodiment of the present invention, the method comprising: acquiring a medical image image including the affected part of the target patient or pet generated from the imaging unit; 3D modeling the obtained medical imaging image; simulating at least one recommended splint having an optimized structure for securing or supporting the affected part of the target patient or pet and securing breathability and strength by using the three-dimensional modeled medical image image; There may be provided a method of manufacturing a medical splint including outputting the at least one recommended splint through a 3D printing device.

In one embodiment, the simulating the at least one or more recommended splints may include: determining a shape of a first splint that covers the whole or part of the affected part of the target patient from the acquired medical image image; determining an optimized structure for securing the breathability and strength in consideration of the shape of the first splint; and determining a second splint by applying an optimized structure for securing the breathability and strength to the first splint. The optimized structure for securing the air permeability and strength may be determined by combining at least one or more of a double structure having different strengths of the shape, size and pattern of pores for securing the air permeability and the inner and outer surfaces of the splint. . The determining of the second splint by applying the optimized structure for securing the breathability and strength to the first splint may be performed through boundary condition setting, phase optimization, and result analysis. 3D modeling so that the first splint or the second splint is worn on the affected part of the target patient of the 3D modeled medical image image; and displaying the 3D modeled medical image image in which the first splint or the second splint is worn. before outputting the at least one recommendation splint, transmitting a simulation result for the at least one recommendation splint to a doctor in charge or a client computer; At least one of the shape and color of the recommended splint and the shape, size, and pattern of pores for securing the breathability is modified by reflecting the first feedback information of the doctor in charge or the client computer for the at least one or more recommended splints or changing; and transmitting information on the modified or changed recommendation splint to the doctor in charge or the client computer. The method may further include printing the second feedback information on the surface of the recommendation splint by reflecting second feedback information of the target patient or a person related to the target patient. The medical image image may be an image file in a DICOM (Digital Imaging and Communications in Medicine) file format.

In an embodiment, acquiring the medical imaging image may include performing based on a block chain structure. The step performed based on the block chain structure may include: transmitting the medical image image to a manufacturer computer by a client computer; verifying the transmission of the medical imaging image; generating a block including the medical image image; verifying the generated block; It may include linking the verified block to a blockchain.

The imaging unit is an X-ray apparatus, a computed tomography (CT or computerized axial tomography) apparatus, a magnetic resonance imaging (MRI) apparatus, an optical coherence tomography apparatus, an ultrasound imaging apparatus positron emission tomography (PET). ) may include at least one of a device, a 3D scanner, and a camera.

According to an embodiment of the present invention, three-dimensional modeling is performed using a plurality of medical image images including the affected part of the target patient generated by the imaging unit, and the affected part of the target patient is performed using the three-dimensional modeled medical image image. By simulating at least one or more recommended splints having an optimized structure for securing or supporting the ventilation and strength, and manufacturing the at least one recommended splint through a 3D printing device using the results, the patient's or pet's It is possible to quickly order a customized medical splint considering the body type, and it is possible to provide a device for manufacturing a medical splint with reduced discomfort to the patient when wearing the medical splint, securing flexibility and strength, and having ventilation.

In addition, it is possible to accurately and quickly manufacture a medical splint even if the medical staff does not have a high level of experience, and it is possible to manufacture a medical splint of a design desired by the user by reflecting the user's feedback.

In addition, according to an embodiment of the present invention, a method for manufacturing a medical splint having the above-described advantages may be provided.

1 shows a medical splint manufacturing system according to an embodiment of the present invention.
2A to 2B are diagrams for explaining a block chain structure for manufacturing a medical splint according to an embodiment of the present invention.
3 is a flowchart illustrating a method of manufacturing a medical splint according to an embodiment of the present invention.
4A to 4D are image diagrams illustrating a method of manufacturing a medical splint according to an embodiment of the present invention.
5A to 5D are diagrams for designing an optimized structure for securing breathability and strength.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Examples of the present invention are provided to more completely explain the present invention to those of ordinary skill in the art, and the following examples may be modified in various other forms, and the scope of the present invention is as follows It is not limited to an Example. Rather, these examples are provided so that this disclosure will be more thorough and complete, and will fully convey the spirit of the invention to those skilled in the art.

In addition, in the following drawings, the thickness or size of each layer is exaggerated for convenience and clarity of description, and the same reference numerals in the drawings refer to the same elements. As used herein, the term “and/or” includes any one and any combination of one or more of those listed items.

The terminology used herein is used to describe specific embodiments, not to limit the present invention. As used herein, the singular forms may include the plural forms unless the context clearly dictates otherwise. Also, as used herein, “comprise” and/or “comprising” refers to the presence of the recited shapes, numbers, steps, actions, members, elements, and/or groups of those specified. and does not exclude the presence or addition of one or more other shapes, numbers, movements, members, elements and/or groups.

Although the terms first, second, etc. are used herein to describe various members, parts, regions, layers and/or parts, these members, parts, regions, layers and/or parts are limited by these terms so that they It is self-evident that These terms are used only to distinguish one member, component, region, layer or portion from another region, layer or portion. Accordingly, a first member, component, region, layer or portion discussed below may refer to a second member, component, region, layer or portion without departing from the teachings of the present invention.

1 is a view showing a medical splint manufacturing system 10 according to an embodiment of the present invention.

Referring to FIG. 1 , a medical splint manufacturing system 10 according to the present invention is 3D connected to a network 100 and a wired/wireless communication connection 251 with a manufacturer computer 200 , and a manufacturer computer 200 with a wired/wireless connection. The printing device 210, the network 100 and the wired/wireless communication connection 351, and the client computer 300 capable of communicating with the manufacturer computer 200 through the network 100, and the client computer 300 and wired/wireless connection It may include an imaging unit 310 that becomes The imaging unit 310 and the client computer 300 may be installed in an operating room or a diagnosis room in a hospital, and the manufacturer computer 200 and the 3D printing device 210 may be disposed in a separate place from the operating room or the diagnosis room. have. Preferably, the manufacturer's computer 200 and the 3D printing device 210 may be installed and operated by a patient-customized medical splint manufacturing company upon request from a hospital. If necessary, each component may allow remote access to each other through the network 100 as shown in FIG. 1 . To this end, the manufacturer computer 200 and the client computer 300 may include a communication interface (not shown) for connecting to the network 130 .

In an embodiment, a plurality of client computers 300 and a plurality of imaging units 310 in a plurality of hospitals may be connected to the network 100 by wired/wireless communication, and a plurality of hospitals and at least one medical splint A many-to-one relationship can be established between professional production companies. A plurality of client computers 300 and one manufacturer computer 200 may be communicatively connected to each other through the network 100 including a wired/wireless communication network.

The manufacturer computer 200 or the client computer 300 is a permanent storage device (not shown) or a temporary storage device (not shown) for storage of application software and data, at least one stored in the permanent storage device or the temporary storage device It may include the above databases, and at least one processor (not shown) for controlling them. The manufacturer computer 200 or the customer computer 300 has a user interface that includes an input unit such as a mouse, keyboard, or touch panel, and an output unit such as a monitor, projection display, and head-up display. The user interface may implement augmented reality to improve realism and information transfer efficiency of a simulation to be described later.

The above-described components of the manufacturer computer 200 or the client computer 300 and databases (not shown) are not limited to being implemented in a single computer, and may be implemented in a distributed or cloud manner. In one embodiment, the main data and execution program of the manufacturer computer 200 or the supplicant computer 300 is installed on a server computer (not shown), and the maker computer 200 or the supplicant computer 300 downloads and uses it. may be However, the present invention is not limited thereto.

The imaging unit 310 provided in the hospital generates a medical image image by photographing an affected part of a patient or pet to be fixed and supported by a medical splint, and converts it into an electrical signal and transmits it to the client computer 300 . The affected part may be any one of a finger, a hand, a forearm, an upper arm, a clavicle, a lower leg, and a thigh as a non-limiting example. The imaging unit 310 may be, as a non-limiting example, at least any one of an X-ray apparatus, a computed tomography (CT) apparatus, a magnetic resonance imaging (MRI) apparatus, a positron emission tomography (PET) apparatus, a 3D scanner, and a camera. may include. The imaging unit 310 is a device for photographing a cross-section of the affected part of the patient, and may generate a plurality of cross-sectional images at regular intervals that are the medical image images. In an embodiment, the medical image image may be an image file in a Digital Imaging and Communications in Medicine (DICOM) file format.

The client computer 300 may render a plurality of cross-sectional images taken from the imaging unit 310 in three dimensions, and in order to request the manufacture of a splint to fix or support the affected part of the patient or pet, the 3 The dimensionally rendered image or the medical imaging image may be transmitted to the manufacturer computer 200 through the network 100 in various ways. Specifically, the medical image image or the three-dimensionally rendered image may be delivered to the client through e-mail, a virtual private network (VPN), or a messenger (eg, KakaoTalk, Line, WhatsApp). As another example, the medical image image or the three-dimensionally rendered image may be uploaded to a bulletin board of a website of a corresponding medical splint manufacturing company. Alternatively, the separate medical image image or the three-dimensionally rendered image may be transmitted to a medical splint manufacturer through a stored removable memory. Preferably, in order not to leak patient personal information, the medical image image should be encrypted and transmitted, and the encrypted medical image image can only be accessed and decrypted by a person or computer with authority.

In the implementation, the client computer 300 performs a process of determining a splint having an optimized structure for securing breathability and strength to be described later, and then a standard format file that can be output by the 3D printing device 210, e.g. , it can be converted into STL (StereoLithography) and transmitted to the manufacturer's computer 200 . In this case, the manufacturer computer 200 simply outputs the standard format file received from the client computer 300 to the 3D printing device 210 without a separate 3D modeling or phase optimization analysis process to directly print the medical splint. .

The manufacturer computer 200 obtains a medical image image including the affected part of the target patient or pet generated from the imaging unit by using the 3D Rendering S/W that is already installed, and three-dimensionally models the obtained medical image image. , by using the three-dimensional modeled medical image image, it is possible to simulate at least one or more recommended splints having an optimized structure for fixing or supporting the affected part of the subject or pet and securing breathability and strength. The medical image image may be an image file in a DICOM (Digital Imaging and Communications in Medicine) file format.

In an embodiment, the three-dimensional modeling of the medical image image may be performed by stacking a plurality of cross-sectional images one by one to express the three-dimensional image image. The three-dimensional image image may be displayed as a three-dimensional image through image processing. Here, in order to reduce the data size of the 3D video image, an image segmentation algorithm may be used. The image segmentation algorithm accurately extracts an organ boundary or region of interest (ROI) and separates it from the remaining data group. For the anatomical segmentation, thresholding-based or model-based is widely used. The binarization-based segmentation uses pixel brightness and patterns to separate or remove structures throughout the DICOM data. The model-based segmentation is a method of finding and segmenting similar patterns in an image to be printed by using a database of anatomical structure shapes that have been established, and is evolving into a region segmentation method using information learned using AI. The 3D video image is stored in any digital format that can be decoded by the 3D printing device 210 to be described later, or as a non-limiting example, Catia™, Solidworks, MIMICS, Fkadia Roy Auto It can be stored in a database in a digital format of 3D image information supported by commercial software such as AutoCAD™ or 3D MAX￢™.

In one embodiment, the manufacturer computer 200 fixes or supports the affected part of the target patient and simulates at least one recommended splint having an optimized structure for securing breathability and strength, from the acquired medical image image. Determining the shape of the first splint covering the whole or part of the affected part of the target patient, determining the optimized structure for securing the breathability and strength, considering the shape of the first splint, and increasing the breathability and strength A second splint may be determined by applying an optimized structure for securing to the first splint. In the present invention, covering the entire affected part of the target patient is referred to as a cast, and wrapping the affected part of the target patient is referred to as a half cast. The first splint may be a splint that does not include an optimized structure for securing the breathability and strength, and the second splint may be a splint including an optimized structure for securing the breathability and strength.

In one embodiment, the optimized structure for ensuring the breathability and strength is at least one or more of a double structure having different strengths of the shape, size and pattern of pores for securing the breathability, and the inner surface and the outer surface of the splint It can be determined by binding. In contact with the affected part of the medical splint manufactured through the 3D printing device 210 to be described later, the inner surface uses a soft material rather than strength so that the patient or pet does not feel discomfort, and the wearability is improved, and the outer surface of the splint is strong By using a material that enhances the splint, the inner surface and the outer surface of the splint may have a double structure of different materials.

In addition, the manufacturer computer 200 performs three-dimensional modeling so that the first splint or the second splint is worn on the affected part of the target patient of the three-dimensional modeled medical image image, and the first splint or the second splint The worn 3D modeled medical image image may be displayed.

In addition, the manufacturer computer 200 is a three-dimensional image of the affected part and the three-dimensional image of the splint 3D movement, rotation, symmetry, cutting, part creation, editing tools such as enlargement / reduction of the graphic object implemented as a 3D image image , a comparison tool between graphic objects, or a dedicated program or software module such as a dimension measurement tool.

In one embodiment, the manufacturer computer 200 transmits the simulation result for the at least one or more recommendation splints to the treating doctor or the client computer, and a first feedback of the treating doctor or the client computer for the at least one or more recommendation splints. By reflecting the information, modify or change at least one or more of the shape and color of the recommended splint, the shape, size, and pattern of pores for ensuring air permeability, and transmit information on the modified or changed recommended splint to the doctor or the It can be transmitted to the client computer.

The simulation result for the at least one or more recommended splints may be a stereoscopic image image in which a virtual splint is worn on the 3D modeled patient's affected part as shown in FIG. 4 to be described later, or a splint sample manufactured through the 3D printing device 210. have. In addition, the first feedback information may be a request to change the length or width of the virtual splint, the shape and color of the virtual splint, and a request to change the shape, size, and pattern of pores for securing the breathability.

In addition, the manufacturer computer reflects the second feedback information of the target patient or a person related to the target patient, and can control to print the second feedback information on the surface of the recommended splint through the 3D printing device 210 have. The person related to the subject patient may be a parent, acquaintance, relative, or friend of the patient. The second feedback information may be a design pattern or image to be printed on the surface of the recommended splint, a message of support for a quick recovery, or a phrase a patient likes.

In one embodiment, the 3D printing apparatus 210 may receive the converted standard data from the manufacturer computer 200, and print at least one or more recommended splints. Since the 3D printing device 210 cannot directly output the modeled 3D image image, the manufacturer computer 200 uses a standard format file, for example, STL (STereoLithography) so that the 3D printing device 210 can output it. can be converted

In an implementation, the manufacturer computer 200 may acquire the medical image image based on a block chain structure. The information of the medical image image may be generated and verified as a block and connected to a block chain. For example, referring to FIG. 2A , a plurality of video images may be stored and transmitted through respective data blocks DB1, DB2, DB3, ... n-1. The data blocks (C1) are linked in a block chain structure, and when a transaction for creating and storing a new medical image image occurs, based on a known blockchain algorithm, the new medical image image is converted into a new data block (DBn). ) (C2), and a new data block (DBn) (C2) can be chained after the data block (DBn-1). The data blocks connected by the block chain may be distributed and stored by a plurality of permitted nodes (not shown) connected to the network 100 . In one embodiment, the authorized nodes may be computers installed within a plurality of hospitals.

In another embodiment, referring to FIG. 2A , a new medical image image is added to any one data block among the conventional data blocks (DB21, DB2, DB3, ... DB n-1) without generating a new data block. or may be inserted. For example, the new medical image image may be inserted or added to the conventional data block DB2 and stored or stored together with the previous medical image images of the conventional data block DB2.

Accordingly, a plurality of medical image image data may be included in one data block. A plurality of medical image image data of one individual patient may be stored in one data block or medical image image data of a plurality of patients may be stored in one data block. By encrypting the medical image image and applying the storage and sharing method to the block chain, it is possible to protect the medical image image from the risk of hacking into the hospital network or the manufacturer's network. In an implementation, the manufacturer computer 200 may store and store not only the medical image images but also the image images of FIGS. 4C and 4D described below based on the block chain structure.

In embodiments, the packaged recommendation splint may be transported to a hospital by a delivery system (not shown) to immobilize or support the patient's affected area. The delivery system, for example, can be connected to the manufacturer computer 200 and the client computer 300 that can be connected to the network, and can be combined with conventional land, air, or sea transport devices to quickly and quickly deliver 3D printed recommendation splints. It can be accurately transported to the appropriate hospital.

In the above description, the 3D printing device 210 is disposed at a separate manufacturer and the splint is manufactured outsourced, but in another implementation, the 3D printing device 210 is disposed in the hospital and connected to the client computer 300 . Also, the splint may be manufactured directly in the hospital by receiving the 3D modeling result from the client computer 300 .

In the above description, the 3D printing device 210 receives and outputs data from the manufacturer computer 210, and the medical image image from the imaging unit 310 is transmitted to the manufacturer computer 210 through the client computer 300. Example Although described for example, in another implementation, the 3D printing device 210 receives a medical image image from the client computer 300 or the imaging unit 310 through the connection 252 through the network 100 to provide a medical splint. can be printed out. In this case, the imaging unit 310 may transmit the medical image image to the manufacturer's computer 200 or the 3D printing device 310 through the connection 352 through the network 100 .

3 is a flowchart for explaining a method of manufacturing a medical splint according to an embodiment of the present invention, and FIGS. 4A to 4D are image diagrams illustrating a manufacturing method of a medical splint according to an embodiment of the present invention. Preferably, it will be described based on the operating method of the medical splint manufacturer computer.

Referring to FIG. 3 , obtaining a plurality of medical image images including the affected part of the target patient or pet generated from the imaging unit (S1), three-dimensional modeling using the obtained medical image images (S2) ), using the three-dimensional modeled medical image image, fixing or supporting the affected part of the target patient or pet and simulating at least one recommended splint having an optimized structure for securing breathability and strength (S3) ) and outputting the at least one recommended splint through a 3D printing device (S4) may be provided. The imaging unit is an X-ray apparatus, a computed tomography (CT or computerized axial tomography) apparatus, a magnetic resonance imaging (MRI) apparatus, an optical coherence tomography apparatus, an ultrasound imaging apparatus positron emission tomography (PET). ) may include at least one of a device, a 3D scanner, and a camera.

In one embodiment, the medical imaging image may be a cross-sectional image. Referring to FIG. 4A , it is a cross-sectional image of a dog's thighs taken through MRI or CT. In the 3D modeling ( S2 ), a 3D stereoscopic image may be modeled by sequentially stacking a plurality of cross-sectional images. Referring to FIG. 4B , it is a three-dimensional image image of a thigh modeled by stacking a plurality of cross-sectional images of a dog's thigh.

In the three-dimensional modeling step (S2) and the step of simulating at least one or more recommended splints (S3), the three-dimensional movement, rotation, and rotation of the graphic object implemented with the three-dimensional image information of the affected part and the three-dimensional image information of the splint, A dedicated program or software module may be provided, such as an editing tool such as symmetry, cropping, part creation, zooming, a comparison tool between graphic objects, or a dimensioning tool. A user may perform a simulation through an appropriate user interface using these modules, and appropriate correction information for 3D image information of the virtual splint may be generated.

In one embodiment, the step of simulating the at least one or more recommended splints (S3) includes determining the shape of a first splint that covers the whole or part of the affected part of the target patient or pet from the acquired medical image image. , in consideration of the shape of the first splint, determining an optimized structure for securing the breathability and strength, and applying the optimized structure for securing the breathability and strength to the first splint to form a second splint It may include the step of determining. Covering the entire affected part of the target patient refers to a cast, and wrapping the affected part of the target patient is referred to as a half cast. The first splint may be a splint that does not include an optimized structure for securing the breathability and strength, which will be described later, and the second splint may be a splint including an optimized structure for securing the breathability and strength.

Structural optimization according to a designer's requirements is divided into sizing, shape, and topology optimization. Preferably, topology optimization can be utilized in the present invention. In the case of the topology optimization, it is a method of finding an optimal shape in consideration of boundary conditions acting without considering the topology of the initial structure at all. The optimization methods include solid isotropic material with penalization (SIMP) and evolutionary structural optimization (ESO), and these methods are applicable to various topological optimization problems. The SIMP fills the entire design area with gray elements to match the target volume, and then, through sensitivity analysis, the important parts gradually become black (the part that is a structure), and the insignificant parts are white (the part that is not a structure). part) to change it. The ESO is a method of finding an optimal phase by filling the entire design area with black (structure) elements and then sequentially removing unnecessary elements. However, the present invention is not limited to the above optimization methods.

In one embodiment of the present invention, the step of determining the second splint by applying the optimized structure for securing the breathability and strength to the first splint includes the boundary condition setting step of FIG. 5a, the phase optimization step of FIG. 5b, and 5c and 5d include the step of analyzing the results. The boundary condition setting step of Figure 5a is applied to the area and the area where the inside of the first splint is in close contact with the affected area within the first splint covering the whole or part of the affected area of the target patient or pet from the medical image image. The load may be determined by a predetermined load. The phase optimization step of FIG. 5B includes inputting an objective function, a design variable, and a constraint.

The objective function (or optimization type) is similar to selecting an analysis type, and since phase optimization supports linear static analysis, modal analysis, and frequency response analysis, an analysis type appropriate for the design purpose can be selected. For example, linear static for the purpose of increasing the stiffness of the splint against static loads, modal analysis for the purpose of maximizing the natural frequency of the splint structure, and for increasing the stiffness of the splint against cyclic dynamic loads If this is the case, the frequency response can be selected. In topology optimization, design set and non-design set can be distinguished based on the element network because the design variable is only the shape density of the element. The elements included in the non-design set are included in the analysis process, but the shape density can always be maintained at 1 regardless of the optimization progress. Even elements included in the design set, elements without volume other than 2D/3D elements such as springs, rigid bodies, and masses may be automatically excluded from the design.

The above constraint is to minimize the volume by using displacement or stress limiting conditions (set in sub-case control) when weight reduction is the main purpose, and constrain the volume ratio (set in analysis control) to maximize the stiffness of the splint at a given amount of material. condition can be selected. In the case of the stress limiting condition, since the change in maximum stress has little correlation with the total amount of material, it can be applied as a constraint on the stress of the average concept of all elements, not the maximum stress. If you want a skeletal layout of the splint, it is common to try based on a volume ratio of about 30%, and the displacement or stress of the constraint must be greater than the displacement or stress result in the initial state when the total element density is full to reduce weight. is possible

The step of analyzing the results of FIGS. 5C and 5D is a step of showing the results of the topology optimization analysis based on the objective function, design variables, and constraints. Fig. 5c shows the safety factor as an analysis result, and Fig. 5d shows tension/compression as an analysis result. The safety factor of the above result type is a number showing which areas in the model are at risk of yielding due to stress, and the tensile and compression result types are numbers showing which areas of the model are under tension and compressive forces. Although the present invention discloses stability factor and tension/compression as types of analysis results, the types of analysis results are not limited thereto. For example, the type of analysis result may further include displacement, yield rate, maximum shear stress, Von Mises stress, and principal stress, and result analysis may be performed by a result type selected from the result type list.

In one embodiment, the optimized structure for ensuring the breathability and strength is at least one or more of a double structure having different strengths of the shape, size and pattern of pores for securing the breathability, and the inner surface and the outer surface of the splint It can be determined by binding. In contact with the affected part of the medical splint manufactured through the 3D printing device to be described later, the inner surface uses a soft material rather than strength so that the patient does not feel discomfort, and improves the fit, and the outer surface of the splint is made of a material that improves strength By using it, the inner surface and the outer surface of the splint may have a double structure of different materials.

In one embodiment, when the medical splint wraps around or fixes the entire affected part of the patient or pet, the medical splint may be separated and combined into at least two or more segments to facilitate wearing of the medical splint.

In addition, the step of simulating the at least one or more recommended splints (S1) may include three-dimensional modeling so that the first splint or the second splint is worn on the affected part of the target patient of the three-dimensional modeled medical image image; and displaying the 3D modeled medical image image in which the first splint or the second splint is worn.

Referring to FIG. 4C , it can be seen that the splint is worn on the thigh of the 3D stereoscopic image of FIG. 4B . In addition, referring to Figure 4c, the medical splint can be separated into two blocks that are symmetrical left and right, and the two separated blocks are arranged to surround the affected part and combined using a male and female coupling member, so that even in the affected part of the same area as the conventional thigh. It can be designed to be easily worn and detached.

In one embodiment, before the step of outputting the at least one recommended splint (S4), the method further comprising: transmitting a simulation result of the at least one or more recommended splints to a doctor in charge or a client computer; At least one of the shape and color of the recommended splint and the shape, size, and pattern of pores for securing the breathability is modified by reflecting the first feedback information of the doctor in charge or the client computer for the at least one or more recommended splints or changing; and transmitting information on the modified or changed recommendation splint to the doctor in charge or the client computer. The simulation result of the at least one recommended splint may be a stereoscopic image image in which a virtual splint is worn on the 3D modeled patient's affected part as shown in FIG. 4 or a splint product manufactured through a 3D printing apparatus to be described later. In addition, the first feedback information may be a request to change the length or width of the virtual splint, the shape and color of the virtual splint, and a request to change the shape, size, and pattern of pores for securing the breathability.

In addition, by reflecting second feedback information of the target patient or a person related to the target patient, the second feedback information may be printed on the surface of the recommendation splint in the 3D printing step described later. The person related to the subject patient may be a parent, acquaintance, relative, or friend of the patient. The second feedback information may be a design pattern or image to be printed on the surface of the recommended splint, a message of support for a quick recovery, or a phrase a patient likes. However, the present invention is not limited thereto.

In an embodiment, the step of outputting the at least one recommended splint through a 3D printing device (S4) may include converting a 3D stereoscopic image of the recommended splint into a standard file; 3D printing the recommended splint according to the standard file. The 3D printing apparatus cannot directly output the modeled 3D image image. Therefore, it is necessary to convert it to a file in a standard format so that the 3D printing device can output it. For example, the de facto standard format is STL (STereoLithography). Reconstruction and data processing techniques may be applied to a 3D medical image composed of a plurality of 2D images. Since a medical image is a set of simple 3D voxels, there is no surface information. If necessary, the process of converting volume data into polygon data is performed, and visualization technology must be applied for interaction with the user.

If it is not possible to export the STL format due to the absence of an interface module (not provided by default with all CAD software programs), you can use various formats (such as STEP, IGES or VDA-FS) to transfer the data to another CAD program and It can be converted into an STL file in the received CAD program.

The 3D printing apparatus may use any one of stereo lithography apparatus (SLA), selective laser sintering (SLS), fused deposition modeling (FDM), and three dimensional printing (3DP). Materials used for 3D bioprinting include, but are not limited to, gelatin, chitosan, collagen, hyaluronic acid, alginate, agar, gellan gum, fibrin, keratin, cellulose naturally-derived polymer or PLA (Poly lactic acid), PEG (Poly ethylene glycol), Poly vinyl alcohol (PVA), poly L lactic acid (PLLA), poly lactic-co-glycolic acid (PLGA), and poly-caprolactone (PCL) synthetic polymers may be used. Alternatively, it may be a polymer-based, metal-based, ceramic-based material having biocompatibility, or a composite material of two or more thereof.

Referring to FIG. 4D , splints for supporting or securing a 3D printed thigh are shown. When 3D printing a splint, feedback information such as the color of the splint and the pattern shape of the pore can be provided from the patient or related people and reflected on the splint and output. In addition, cheering phrases or images may be printed on the surface of the splint.

In an embodiment, the medical image image may be an image file in a Digital Imaging and Communications in Medicine (DICOM) file format. In addition, the step (S1) of obtaining the medical imaging image may include a step performed based on a block chain structure. Specifically, the steps performed based on the block chain structure may include: transmitting the medical image image to a manufacturer computer by a client computer; verifying the transmission of the medical imaging image; generating a block including the medical image image; verifying the generated block; It may include linking the verified block to a blockchain.

As described above, obtaining a plurality of medical image images including the affected part of the target patient generated from the imaging unit (S1), 3D modeling using the obtained medical image images (S2), the 3 Simulating at least one recommended splint having an optimized structure for fixing or supporting the affected part of the target patient and securing breathability and strength by using the dimensionally modeled medical image image (S3) and the at least one recommendation By outputting the splint through a 3D printing device, it is possible to quickly order a customized medical splint considering the body part of the patient, reduce the discomfort of the patient when wearing the medical splint, secure flexibility and strength, and have ventilation can provide

In addition, before 3D printing the recommended splint, it is repeated at least once in consideration of the feedback information of the chair in charge to perform the correction or supplementation process of the recommended splint, thereby improving accuracy and reliability to provide a customized splint optimized for the patient can do. In addition, by receiving feedback information from the target patient or a person related to the target patient and outputting an image or a support message wishing for the patient's recovery on the surface of the recommendation splint, it is possible to give pleasure and courage to the patient.

In addition, by storing and delivering the patient's image image based on the block chain structure, it is possible to solve the problem that forged or modulated data is distributed by hacking the patient's image image. Each data block constituting the block chain stores a block hash value, so that the user does not need to separately encrypt the patient's image.

It is common in the art to which the present invention pertains that the present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications and changes are possible within the scope without departing from the technical spirit of the present invention. It will be clear to those who have knowledge.

Claims (21)

X-ray device from hospital computer, computed tomography (CT or computerized axial tomography) device, magnetic resonance imaging (MRI) device, optical coherence tomography device, ultrasound imaging device PET (positron emission tomography) ) receiving a medical imaging image including an affected part of a target patient or pet taken using a medical device including at least one of the devices through a network, and three-dimensionally modeling the received medical imaging image, and the three-dimensional A manufacturer computer that uses the modeled medical image image to fix or support the affected part of the target patient and simulate at least one or more recommended splints having an optimized structure for securing breathability and strength; and
and a 3D printing device connected to the manufacturer's computer to output the at least one recommended splint,
The simulation is a region in which the inside of the virtual splint is in close contact with the affected part within a virtual splint covering the whole or part of the affected part of the target patient or the pet from the medical image image and a predetermined load applied to the area. Based on the objective function, design variables and constraint conditions of the boundary condition setting step determined by , the phase optimization step of searching for an optimal shape in consideration of the boundary condition from the boundary condition setting step, and the phase optimization step It is performed through 3D rendering software including a step of interpreting the results showing,
The objective function of the phase optimization step is a linear static analysis for the purpose of increasing the stiffness of the splint against static loads, a modal analysis for the purpose of maximizing the natural frequency of the splint structure, and for periodic dynamic loads. Including frequency response analysis or a combination thereof for the purpose of increasing the stiffness of the splint,
The design variable of the phase optimization step includes the shape density of the splint,
Constraints of the phase optimization step include weight reduction, stress, or a combination thereof,
The analysis result is a medical splint manufacturing apparatus including safety factor, tensile, compression, displacement, yield rate, maximum shear stress, Von Mises stress and principal stress or a combination thereof. The method of claim 1,
The manufacturer's computer
Determining the shape of the first splint covering the whole or part of the affected part of the target patient or pet from the received medical image image
Considering the shape of the first splint, determine an optimized structure for securing the breathability and strength,
An apparatus for manufacturing a medical splint for determining a second splint by applying an optimized structure for securing the breathability and strength to the first splint. 3. The method of claim 2,
The optimized structure for securing the breathability and strength is
An apparatus for manufacturing a medical splint determined by a combination of at least one of a shape, size and pattern of pores for securing the air permeability, and a double structure having different strengths of an inner surface and an outer surface of the splint. 3. The method of claim 2,
The manufacturer's computer
3D modeling so that the first splint or the second splint is worn on the affected part of the target patient or pet of the 3D modeled medical image image,
An apparatus for manufacturing a medical splint that displays the 3D modeled medical image image in which the first splint or the second splint is worn. The method of claim 1,
The manufacturer's computer is
Transmitting the simulation results for the at least one or more recommended splints to the doctor in charge or the hospital computer,
By reflecting the first feedback information of the doctor or the hospital computer for the at least one or more recommended splints, at least one or more of the shape and color of the recommended splint, and the shape, size, and pattern of pores for securing the air permeability are modified or change,
An apparatus for manufacturing a medical splint that transmits information on the modified or changed recommended splint to the doctor in charge or the hospital computer. 6. The method of claim 5,
The manufacturer's computer
Reflecting second feedback information of the target patient or a person related to the target patient, printing the second feedback information on the surface of the recommendation splint,
The second feedback information is an apparatus for manufacturing a medical splint including a design pattern to be printed on the surface of the recommended splint, an image, or a phrase wishing a recovery of the target patient. The method of claim 1,
The medical image image is an apparatus for manufacturing a medical splint, characterized in that an image file of a DICOM (Digital Imaging and Communications in Medicine) file format. The method of claim 1,
The medical image image is recorded in any one block of the block chain structure in which the hospital computer, a plurality of hospital computers other than the hospital computer, and the manufacturer computer participate,
The medical image image is an encrypted medical splint manufacturing apparatus. 9. The method of claim 8,
The output of the at least one recommended splint is separated and combined into at least two segments, an apparatus for manufacturing a medical splint. X-ray device from hospital computer, computed tomography (CT or computerized axial tomography) device, magnetic resonance imaging (MRI) device, optical coherence tomography device, ultrasound imaging device PET (positron emission tomography) ) receiving an encrypted medical image image including the affected part of a target patient or pet photographed using a medical device including at least one of the devices through a network, decrypting the encrypted medical image image, and Three-dimensional modeling of a medical image image, and using the three-dimensional modeled medical image image, fix or support the affected part of the target patient, and simulate at least one or more recommended splints having an optimized structure for securing breathability and strength manufacturer's computer; and
and a 3D printing device connected to the manufacturer's computer to output the at least one recommended splint,
The encrypted medical image image is recorded in any one block of the block chain structure in which the hospital computer, a plurality of hospital computers other than the hospital computer, and the manufacturer computer participate,
The output at least one recommendation splint is separated and combined into at least two segments,
The simulation is a region in which the inside of the virtual splint is in close contact with the affected part within a virtual splint covering the whole or part of the affected part of the target patient or the pet from the medical image image and a predetermined load applied to the area. Based on the objective function, design variables and constraint conditions of the boundary condition setting step determined by , the phase optimization step of searching for an optimal shape in consideration of the boundary condition from the boundary condition setting step, and the phase optimization step It is performed through 3D rendering software that includes a step of interpreting the results to show
The objective function of the phase optimization step is a linear static analysis for the purpose of increasing the stiffness of the splint against static loads, a modal analysis for the purpose of maximizing the natural frequency of the splint structure, and for periodic dynamic loads. Including frequency response analysis or a combination thereof for the purpose of increasing the stiffness of the splint,
The design variable of the phase optimization step includes the shape density of the splint,
Constraints of the phase optimization step include weight reduction, stress, or a combination thereof,
The analysis result is a medical splint manufacturing apparatus including safety factor, tensile, compression, displacement, yield rate, maximum shear stress, Von Mises stress and principal stress or a combination thereof. X-ray apparatus, computed tomography (CT or computerized axial tomography) apparatus, magnetic resonance imaging (MRI) apparatus, optical coherence tomography apparatus, ultrasound imaging apparatus PET (positron emission tomography) apparatus A medical device comprising at least one and photographing the affected area of the target patient or pet;
a hospital computer connected to the medical device to encode and record a medical video image including the affected part of a target patient or pet taken using the medical device;
receiving the encrypted medical image image from the hospital computer through a network, decrypting the encrypted medical image image, three-dimensionally modeling the decrypted medical image image, and using the three-dimensional modeled medical image image, A manufacturer computer that fixes or supports the affected part of the target patient or pet and simulates at least one recommended splint having an optimized structure for securing breathability and strength; and
and a 3D printing device connected to the manufacturer's computer to output the at least one recommended splint,
The simulation is a region in which the inside of the virtual splint is in close contact with the affected part within a virtual splint covering the whole or part of the affected part of the target patient or the pet from the medical image image and a predetermined load applied to the area. Based on the objective function, design variables and constraint conditions of the boundary condition setting step determined by , the phase optimization step of searching for an optimal shape in consideration of the boundary condition from the boundary condition setting step, and the phase optimization step It is performed through 3D rendering software including a step of interpreting the results showing,
The objective function of the phase optimization step is a linear static analysis for the purpose of increasing the stiffness of the splint against static loads, a modal analysis for the purpose of maximizing the natural frequency of the splint structure, and for periodic dynamic loads. Including frequency response analysis or a combination thereof for the purpose of increasing the stiffness of the splint,
The design variable of the phase optimization step includes the shape density of the splint,
Constraints of the phase optimization step include weight reduction, stress, or a combination thereof,
The analysis results include safety factor, tensile, compression, displacement, yield rate, maximum shear stress, Von Mises stress, and principal stress or a combination thereof,
The encrypted medical image image is recorded in any one block of the block chain structure in which the hospital computer, a plurality of hospital computers other than the hospital computer, and the manufacturer computer participate,
A system for manufacturing a medical splint in which the outputted at least one recommended splint is separated and combined into at least two segments. X-ray device from hospital computer, computed tomography (CT or computerized axial tomography) device, magnetic resonance imaging (MRI) device, optical coherence tomography device, ultrasound imaging device PET (positron emission tomography) ) receiving, through a network, an encrypted medical video image including the lesion of a target patient or pet taken using a medical device including at least one of the devices;
decrypting the encrypted medical image image;
3D modeling the decoded medical image image;
simulating at least one recommended splint having an optimized structure for securing or supporting the affected part of the target patient or pet and securing breathability and strength by using the three-dimensional modeled medical image image; and
and outputting the at least one recommended splint through a 3D printing device,
The simulation is a region in which the inside of the virtual splint is in close contact with the affected part within a virtual splint covering the whole or part of the affected part of the target patient or the pet from the medical image image and a predetermined load applied to the area. Based on the objective function, design variables and constraint conditions of the boundary condition setting step determined by , the phase optimization step of searching for an optimal shape in consideration of the boundary conditions from the boundary condition setting step, and the phase optimization step It is performed through 3D rendering software including a step of interpreting the results showing,
The objective function of the phase optimization step is a linear static analysis with the purpose of increasing the stiffness of the splint against static loads, a modal analysis with the aim of maximizing the natural frequency of the splint structure, and the periodic dynamic loads Including frequency response analysis or a combination thereof for the purpose of increasing the stiffness of the splint,
The design variable of the phase optimization step includes the shape density of the splint,
Constraints of the phase optimization step include weight reduction, stress, or a combination thereof,
The analysis results include safety factor, tensile, compression, displacement, yield rate, maximum shear stress, Von Mises stress and principal stress or a combination thereof,
The encrypted medical image image is recorded in any one block of the block chain structure in which the hospital computer, a plurality of hospital computers other than the hospital computer, and a manufacturer computer participate,
The output at least one recommended splint is separated and combined into at least two segments. A method of manufacturing a medical splint. 13. The method of claim 12,
The step of simulating the at least one or more recommended splints includes:
determining the shape of a first splint covering the whole or part of the affected part of the target patient from the decoded medical image image;
determining an optimized structure for securing the breathability and strength in consideration of the shape of the first splint; and
and determining a second splint by applying an optimized structure for securing the breathability and strength to the first splint. 14. The method of claim 13,
The optimized structure for securing the breathability and strength is
A method of manufacturing a medical splint determined by combining at least one of a shape, size and pattern of pores for securing the breathability, and a double structure having different strengths of an inner surface and an outer surface of the splint. 14. The method of claim 13,
The step of determining the second splint by applying the optimized structure for securing the breathability and strength to the first splint is a method of manufacturing a medical splint which is performed through boundary condition setting, phase optimization, and result analysis. 14. The method of claim 13,
3D modeling so that the first splint or the second splint is worn on the affected part of the target patient of the 3D modeled medical image image; and
The method of manufacturing a medical splint further comprising displaying the 3D modeled medical image image in which the first splint or the second splint is worn. 13. The method of claim 12,
Before the step of outputting the at least one recommended splint,
transmitting a simulation result of the at least one or more recommended splints to a doctor in charge or a client computer;
At least one of the shape and color of the recommended splint and the shape, size, and pattern of pores for securing the breathability is modified by reflecting the first feedback information of the doctor in charge or the client computer for the at least one or more recommended splints or changing; and
The method of manufacturing a medical splint further comprising transmitting information on the modified or changed recommended splint to the doctor in charge or the client computer. 18. The method of claim 17,
Reflecting the second feedback information of the target patient or a person related to the target patient, further comprising the step of printing the second feedback information on the surface of the recommendation splint,
The second feedback information is a method of manufacturing a medical splint including a design pattern to be printed on the surface of the recommended splint, an image, or a phrase wishing for the recovery of the target patient. 13. The method of claim 12,
The medical image image is a method of manufacturing a medical splint, characterized in that the image file of the DICOM (Digital Imaging and Communications in Medicine) file format. 13. The method of claim 12,
The method of manufacturing a medical splint comprising the step of receiving the encrypted medical image image is performed based on a block chain structure. 21. The method of claim 20,
The steps performed based on the block chain structure are:
transmitting the medical image image to the manufacturer's computer by the hospital computer;
verifying the transmission of the medical imaging image;
generating a block including the medical image image;
verifying the generated block;
A method of manufacturing a medical splint comprising the step of linking the verified block to a block chain.

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