KR101820674B1 - Apparatus and method for printing of digital gips using 3d data - Google Patents

Abstract

The present invention relates to a digital cast printing apparatus and a digital cast printing method using three-dimensional information. The digital cast printing apparatus according to an embodiment of the present invention includes: a three-dimensional input unit which receives three-dimensional information on an affected part of a patient; a three-dimensional model generation unit which sets an interest range by using the three-dimensional information to generate a plurality of three-dimensional models that are divided into a plurality of regions by using the central axis of a cast penetration direction as an X-axis; and a three-dimensional output unit which outputs the plurality of three-dimensional models by a digital light processing (DLP) method. Therefore, the digital cast printing apparatus according to an embodiment of the present invention can reduce manufacturing time by printing divided digital casts by using the three-dimensional information.

Description

TECHNICAL FIELD [0001] The present invention relates to a digital gibs printing apparatus using 3D information,

The present invention relates to a digital gibbsite printing apparatus using 3D information and a printing method thereof, and more specifically, a technique for printing a digital gibbber divided into a plurality of regions is disclosed.

Fractures, or injuries, or to strengthen or reinforce the muscular strength of various parts of the body, the gypsum or splint is made. Up to this time, a method of making using a typical gypsum and bandage is generally used. The disadvantages of traditional Gibbs are that they must be fitted with inconvenient and heavy casts, are not hygienic, can interfere with blood circulation, cause edema and thrombosis, and rehabilitate longer. It is good to perform a rehabilitation exercise before hardening if there is a bone with a certain bone and it is practically impossible to perform a proper rehabilitation exercise in the Tongiva state. When there is a wound area, it is necessary to disinfect the affected part from time to time. The difficulty with these treatments increases.

Korean Patent Registration No. 1573221 (registered on Nov. 25, 2015) discloses a cavity for fixing an affected part and a method of manufacturing the same, and is characterized in that it comprises an upper inner skin including a plurality of horizontal frames and vertical frames, And a vertical frame, the upper and lower sheaths being detachably coupled to the upper endothelium, and an upper sheath coupled to the upper endothelium to enclose the upper endothelium; And a lower casing coupled to the lower casing to surround the outer surface of the lower casing and detachably coupled to the upper casing.

However, the above-described conventional techniques can be manufactured by separating the upper and lower shells. However, the longer the length of the arm or the leg of the body, the longer the manufacturing time becomes. In addition, there is a limit that over time, the gap is separated from the body due to the elimination of swelling and deterioration of the blood circulation.

SUMMARY OF THE INVENTION The present invention is directed to a digital gibbsite printing apparatus using 3D information capable of shortening a production time by printing a divided digital gibbsite using 3D information, and a printing method thereof.

It is another object of the present invention to provide a digital gibbsite printing apparatus and a printing method using 3D information capable of producing a user-customized cast by acquiring 3D information on a affected part of a patient over time to generate a prosthesis.

It is another object of the present invention to provide a digital gibbsite printing apparatus and a printing method thereof using 3D information that enables a user to observe a wound on a skin of a patient while checking the skin frequently.

A 3D Gibbs printing apparatus using 3D information according to an embodiment of the present invention includes a 3D input unit for inputting 3D information on a affected part of a patient, a 3D input unit for setting a range of interest using the 3D information, a 3D model generating unit for generating a plurality of 3D models divided into a plurality of regions along the x axis, and a 3D output unit for outputting the plurality of 3D models by a DLP (Digital Light Processing) method.

The 3D model generation unit may include a first model generation unit that generates a 3D model that divides the center axis of the penetration direction of the cast in the xy plane with respect to the xy plane and a second model generation unit that divides the center axis of the casting direction of the cast by the x axis and a second model generation unit that generates a 3D model that divides the yz plane with respect to the yz plane.

In addition, the 3D output unit may perform surface processing on each interface so as to enhance coupling between a plurality of 3D output items corresponding to the plurality of 3D models.

The apparatus may further include an implant generation unit for generating an implant model for a difference between the 3D information about the affected part acquired at the first time point and the 3D information about the affected part acquired at the second time point.

In addition, the 3D model generation unit may form a transparent window made of a transparent resin material having the 3D model and the open / close structure at a position corresponding to the affected part.

According to another aspect of the present invention, there is provided a method of printing a digital gibbsite printing apparatus using 3D information, comprising: inputting 3D information on a lesion of a patient; setting a range of interest using the 3D information; A 3D model generation step of generating a plurality of 3D models in which the center axis of the penetration direction is divided into a plurality of regions with the x axis being the center, and a 3D output step of outputting the plurality of 3D models by DLP (Digital Light Processing) .

Accordingly, by printing the divided digital cast using 3D information, the production time can be shortened.

In addition, the 3D information on the affected part of the patient can be acquired over time to generate the implant, thereby making it possible to produce a customized cast.

In addition, when a wound on the affected part of the patient is found, it can be checked at any time to observe the progress.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a configuration diagram of a digital gibbsite printing apparatus using 3D information according to an embodiment of the present invention;
FIG. 2 is a flowchart of a printing method of a digital gibbsite printing apparatus using 3D information according to FIG. 1,
FIG. 3 is an exemplary view for explaining a 3D model formed through a digital gibbsite printing apparatus using 3D information according to FIG. 1;
FIG. 4 is an exemplary view for explaining division into a first model among the 3D models according to FIG. 3;
FIG. 5 is an exemplary view for explaining the division into the second model among the 3D models according to FIG. 3;
FIG. 6 is an exemplary view for explaining an implant model added to the 3D model according to FIG. 3;
FIGS. 7 and 8 are views for explaining opening and closing of a transparent window in the 3D model according to FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The terms used are terms selected in consideration of the functions in the embodiments, and the meaning of the terms may vary depending on the user, the intention or the precedent of the operator, and the like. Therefore, the meaning of the terms used in the following embodiments is defined according to the definition when specifically defined in this specification, and unless otherwise defined, it should be interpreted in a sense generally recognized by those skilled in the art.

FIG. 1 is a configuration diagram of a digital gibbsite printing apparatus using 3D information according to an embodiment of the present invention, and FIG. 2 is a flowchart of a printing method of a digital gibbsite printing apparatus using 3D information according to FIG.

1 and 2, a digital casting apparatus 100 using 3D information according to an exemplary embodiment of the present invention includes a 3D input unit 110, a 3D model generating unit 120, and a 3D output unit 130 .

The 3D input unit 110 receives 3D information about the affected part of the patient (S110). In this case, the 3D input unit 110 can scan the affected part of the patient using the 3D scanner or receive the 3D information using the CT data photographed in the hospital. The 3D input unit 110 may store the 3D information about the input affected part in the input DB 115 with different viewpoints. In this case, the 3D information can be inputted by selecting all or part of the patient's body. The 3D input unit 110 can receive and manage different 3D information according to the posture of the patient. For example, a user who is injured by a leg may be allowed to input 3D information by being different when sitting or standing. This is to grasp the variation of the 3D information of the affected part according to the movement of the user.

Also, the 3D input unit 110 can receive 3D information at a first time point, and can update the history while receiving 3D information at a second time point after a predetermined time has elapsed. This is to understand that volume changes due to swelling of the affected part over time. The 3D input unit 110 may acquire 3D information in each of a plurality of periods according to the state of the patient. Accordingly, the 3D information of the affected part varying according to the state of the patient can be obtained.

The 3D model generating unit 120 may generate a plurality of 3D models of the divided gips by setting the range of interest using 3D information (S120). Here, the range of interest refers to an area for setting minimum required gibbs data around the affected part of the patient. The 3D model generation unit 120 can generate a plurality of 3D models in which the center axis of the penetration direction with respect to the gibbles is divided into a plurality of regions with the x axis. For example, if you create a 3D model that is the Gibbs data for an arm, you can create a 3D model by dividing it by section.

In addition, the 3D model generation unit 120 may be formed by defining the age, preference degree, sex, tendency, size, color, and thickness of a ventilation hole and implant according to the affected part. For example, the 3D model may be formed of two kinds of materials depending on the location of the affected part. In other words, it is possible to form the surface contacting the skin and the outer surface with a material having a different hardness. In addition, the 3D model generating unit 120 may automatically set the thickness of the 3D model differently according to edema of the patient.

Also, the 3D model generation unit 120 may generate a plurality of 3D models of the divided gips by setting the opening / closing range using the 3D information. The opening and closing range means a region where the skin is wound and the region is opened and closed to be confirmed and treated. For example, if fractures or skin injuries are caused by penetrating injuries, the fractures should be fixed through the casts, and the skin should be treated for wound healing. In this case, the 3D model generating unit 120 additionally sets the opening / closing range, and separately sets a range in which the transparent window is connected to the 3D model so as to be opened / closed.

More specifically, the 3D model generation unit 120 includes a first model generation unit 121 and a second model generation unit 122. The first model generation unit 121 can generate a 3D model in which the center axis of the gibb penetration direction is divided along the xy plane with the x axis. When dividing with respect to the xy plane, the 3D model can be divided into halfpipe-like shapes. Preferably, the first model generation unit 121 divides the Gibbs into 2 to 3 positions on the xy plane.

The second model generation unit 122 can generate a 3D model in which the center axis of the penetration direction of the cast is divided along the xz plane with the x axis. This is to create each 3D model more quickly by dividing each section. In addition, the thickness, slope, and spacing with the skin are set differently to reflect the characteristics according to the section to produce a user-customized cast.

The 3D output unit 130 outputs a plurality of 3D models in a DLP (Digital Light Processing) method (S130). The 3D output unit 130 can generate the entire cast in a short time by outputting each 3D model at the same time or at the same time. The 3D output unit 130 can output a cast using a resin material according to a user's setting, and the color, thickness, and material can be varied.

In addition, the 3D output unit 130 may perform surface processing on each interface so as to enhance coupling between a plurality of 3D output objects corresponding to a plurality of 3D models. For example, the interface of each 3D output may be UV treated or heat treated, but not necessarily limited thereto. This is done to roughen the interface between the 3D printouts to facilitate joining between neighboring 3D printouts. A plurality of divided 3D output products can be bonded to each other through a heat treatment after applying resin to the interface.

Meanwhile, the digital gibbsite printing apparatus 100 using 3D information according to an exemplary embodiment of the present invention may further include an implant generator 140.

The implant generating unit 140 generates an implant model for the difference between 3D information about the affected part acquired at the first viewpoint from the 3D input unit 110 and 3D information about the affected part of the patient acquired at the second viewpoint . The implant is inserted in the tolerance between the 3D model, the gibbs and the affected part, so that the implant can be created to reduce the varying tolerance at the point of view. The implant generator 140 may have a different size depending on the material of the implant. For example, in the case of a cushioning material, it is possible to form a larger size than the implant model. The implant generator 140 may be formed so that the implant is inserted and fixed to the inside of the 3D output.

The implant generator 140 may be configured to inject a coolant into the implant. This is to enable cold and hot poultry to reduce edema of the affected part of the patient. In this case, an injection port is formed in the implant so that the refrigerant can be inserted through the injection port. It is also possible for the patient to foment the affected part using the implant.

FIG. 3 is an exemplary view for explaining a 3D model formed through a digital gibbsite printing apparatus using 3D information according to FIG. 1, FIG. 4 is an illustration for explaining division into a first model among the 3D models according to FIG. And FIG. 5 is an exemplary diagram for explaining the division into the second model among the 3D models according to FIG.

3 to 5, a 3D model 300 generated through a digital gibbsite printing apparatus using 3D information according to an embodiment of the present invention is formed with the x-axis of the central axis of the penetration direction of the Gibbs. In this case, as shown in FIG. 4, the 3D model 300 is divided into an upper part and a lower part while being divided into an xy plane with the x and y axes as a first interface 311, and the first model 310 is formed. In this case, the first interface 311 can be easily bonded to the interface through UV treatment, heat treatment, or the like. In addition, the opening and closing range 301 can be set on one side of the first model 310, and the opening and closing range 301 can be 3D printed in the empty state.

Also, as shown in FIG. 5, the 3D model 300 is divided into regions and is formed as a second model 320 while the y-axis and the z-axis are divided into a yz plane with a second boundary surface 321. Therefore, it is possible to improve the production speed by printing the digital cast by separating the upper and lower portions by intervals. In this case, the second interface 321 can be easily bonded to the interface through UV light curing or heat treatment. In addition, the opening and closing range 301 can be set on one side of the second model 320, and the opening and closing range 301 can be 3D printed in the empty state.

FIG. 6 is an exemplary view for explaining an implant model added to the 3D model according to FIG. 3; FIG.

Referring to FIG. 6, an implant to be added to the 3D model 300 according to FIG. 3 may be formed. The implant model 400 can be formed using the difference between the 3D information about the lesion of the patient acquired at the first time point and the 3D information about the lesion of the patient acquired at the second time point. The implant model 400 is formed to be coupled to the interior of the 3D model 300. Thereby, the casting can be prevented from being loosened according to the change in the state of the affected part of the patient, and the affected part can be more firmly supported. In addition, protrusions 401 may be formed on the inner or outer surface of the implant model 400 to maintain ventilation by maintaining the space between the 3D model 300 and the skin.

FIGS. 7 and 8 are views for explaining opening and closing of a transparent window in the 3D model according to FIG.

Referring to FIGS. 7 and 8, a transparent window 500 may be formed in the opening and closing range of the 3D model 300. The transparent window 500 may be formed of a transparent resin material. It is preferable that the transparent window 500 is formed so that the skin of the affected part of the transparent window 500 can be visually confirmed. The transparent window 500 may be connected by the 3D model 300 and the connection unit 510. The connection unit 510 may connect the 3D model 300 and the transparent window 500 by hinge coupling, but is not limited thereto.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, Therefore, the present invention should be construed as a description of the claims which are intended to cover obvious variations that can be derived from the described embodiments.

100: Digital Gibbs printing device
110: 3D input unit
115: input DB
120: 3D model generation unit
121: First model generation unit
122: second model generation unit
130: 3D output unit
140:
300: 3D model
301: opening and closing range
310: First Model
311: first interface
320: second model
321: second interface
400: Implant model
401: projection
500: Transparent window
510: Connection

Claims (5)

A 3D input unit for receiving different 3D information about the affected part according to the posture of the patient;
A plurality of 3D models are generated by dividing the center axis of the penetration direction of the Gibbs into a plurality of regions by setting a range of interest using the 3D information and forming a first model with the xy plane as a first interface a 3D model generating unit that forms a second model with the yz plane as a second interface and forms a transparent window made of a transparent resin material having a hinge-coupled open / close structure at a position corresponding to the affected part; And
A 3D output unit for outputting the plurality of 3D models by a DLP (Digital Light Processing) method, the first interface and the second interface performing UV light curing or heat treatment;
A plurality of protrusions are formed on the inner or outer surface of each of the plurality of protrusions, wherein the protrusions are formed on the inner or outer surface of each of the plurality of protrusions, And a protrusion forming part for spacing the gap and injecting the coolant into the cavity through the injection port. delete delete delete A method of printing a digital gibbsite printing apparatus using 3D information,
A 3D input step of inputting different 3D information about a affected part according to a patient's posture;
A plurality of 3D models are generated by dividing the center axis of the penetration direction of the Gibbs into a plurality of regions by setting a range of interest using the 3D information and forming a first model with the xy plane as a first interface forming a second model with the yz plane as a second interface, and forming a transparent window made of transparent resin material having a hinge-coupled open / close structure at a position corresponding to the affected part;
A 3D output step of outputting the plurality of 3D models by a DLP (Digital Light Processing) method, wherein the first interface and the second interface are subjected to UV light curing or heat treatment; And
A plurality of protrusions are formed on the inner or outer surface of each of the plurality of protrusions, wherein the protrusions are formed on the inner or outer surface of each of the plurality of protrusions, And injecting the coolant into the cavity through the injection port. The method of claim 1,

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