KR20170141073A - Fabrication system for an ear implant and a method for fabricating the ear implant - Google Patents

Abstract

The present invention relates to a system for manufacturing an ear implant and a method for manufacturing an ear implant using the same. The system for manufacturing an ear implant comprises: an input unit; a primary modeling unit; a secondary modeling unit; a model verification unit; a proper model correction unit; and an output unit. The input unit receives a medical image photographed from a patient. The primary modeling unit generates a model by dividing an ear region from the medical image. The secondary modeling unit generates the generated model as a final ear model corresponding to an opposite ear requiring reconstruction. The model verification unit verifies and stores the final ear model generated by the secondary modeling unit. The proper model correction unit corrects the stored final ear model in consideration of surgical suitability. The output unit outputs the corrected final ear model to a 3D printer. According to the present invention, the convenience of surgery and the completion of ear reconstruction are improved.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for manufacturing a patient-customized ear implant and a method for manufacturing ear implant using the same.

The present invention relates to a system for manufacturing an ear implant and a method for manufacturing ear implantation using the same, and more particularly, to a ear implant having a patient-customized ear capable of producing ear implant to replace a malformation ear, And a method for manufacturing a ear implant using the same.

It is a method of reconstructing normal ear shape in case of malformation such as microtia which is caused by less developed tissue that forms ears early in fetus, or deformity or ear in ear due to accident or lesion. So far, Surgical techniques have been used.

That is, it is an operation method in which a patient's rib cartilage is sampled and used for reconstruction of an ear shape. However, in the case of the operation method using the rib cartilage, several repetitive operations must be performed and it is difficult to reconstruct the shape to have a normal ear shape I have been.

On the other hand, Korean Patent Publication No. 10-2006-0037855 discloses a technique related to an apparatus for reconstructing an external ear canal using silicone when an external ear canal having a lesion is removed in an otitis media , U.S. Patent Publication No. US 2016/0057552 discloses a technique for reconstructing an eardrum by fixing a molded body in the ear as an ear canal and eardrum reconstructing member.

However, as described in the above patent documents, only a structure or apparatus for reconstructing an ear shape or a part of a shape of an ear internal structure has been developed and related to the reconstruction of the ear shape until now, The technology related to the method or device is not developed sufficiently.

(Patent Document 1) Korean Patent Publication No. 10-2006-0037855

(Patent Document 2) US Patent Publication No. US 2016/0057552

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above problems, and it is an object of the present invention to provide a patient-customized ear implant preparation system that improves patient compliance and improves operability.

Another object of the present invention is to provide a method of manufacturing a ear implant using the ear implantation system.

According to an embodiment of the present invention, an ear implant preparation system includes an input unit, a primary modeling unit, a secondary modeling unit, a model verification unit, a fitness model correction unit, and an output unit. The input unit receives a medical image photographed from a patient. The primary modeling unit divides the ear area from the medical image to generate a model. The secondary modeling unit generates the generated model as a final ear model corresponding to the opposite ear to be reconstructed. The model verifying unit verifies and stores the final ear model generated by the second modeling unit. The fit model modifying unit modifies the stored final ear model in consideration of the surgical suitability. The output unit outputs the modified final ear model to the 3D printer.

In one embodiment, the primary modeling unit may include an area dividing unit for dividing the ear area based on the normal ear shape from the medical image, and a base model generating unit for generating the divided ear area as a three-dimensional model have.

In one embodiment, the secondary modeling unit may include a model transforming unit that transforms the model generated by the base model generating unit to correspond to the opposite ear, and a model transforming unit that transforms the final ears into a three-dimensional model based on the transformed result And a target model generating unit for generating the target model.

In one embodiment, the model transformation unit may copy the model generated by the base model generation unit to the opposite side, and transform the coordinates and shape according to the face shape and position of the patient.

In one embodiment, the model deforming portion may deform the shape of the generated model in consideration of the thickness of the skin covering the ears of the patient.

In one embodiment, the fit model modifying unit may include a final ear model including an ear canal portion and a movement connected to the ear canal portion, and the space between the ear canal portion and the ear canal may be modified to form a space portion corresponding to the eardrum of the patient .

In one embodiment, the 3D printer may print your implant so that the inside of the 3D printer is polished based on the modified final ear model.

In another embodiment of the present invention for realizing the above-mentioned object of the present invention, a medical image taken from a patient is inputted. A model is generated by dividing the ear area from the medical image. The generated model is generated as a final ear model corresponding to the opposite ear that needs reconstruction. And verifies and stores the generated final ear model. And the stored final ear model is modified in consideration of the surgical suitability. The modified final ear model is output and printed to a 3D printer.

In one embodiment, the step of generating a model by dividing the ear area comprises: dividing the ear area based on the normal ear shape from the medical image; and generating the divided ear area as a three-dimensional model .

In one embodiment, generating with the final ear model may include modifying the generated model to correspond to the opposite ear, and generating the final ear as a three-dimensional model based on the modified result have.

According to the embodiments of the present invention, the shape of the entire ear is modeled and manufactured as a 3D printer, so that unlike the method of collecting the conventional rib bone cartilage and performing ear reconstruction, ear reconstruction surgery is performed by inserting one ear implant The ease of operation and the completeness of ear reconstruction are improved.

In particular, patient compliance is improved by creating a contralateral ear model that requires reconstruction based on the patient's normal ear data, and patient conformity of the ear implants can be further improved by modifying the contralateral ear model depending on the face shape and location.

Furthermore, when the opposite ear model is created, the shape of the model is modified in consideration of the thickness of the skin covering the patient's ears, so that the symmetry of both ears can be enhanced to further improve patient compliance.

In addition, by modifying the final ear model to include migration, the ease of surgery can be improved in the actual implant surgery of the ear implant.

In addition, since the ear implants formed through the 3D printer are formed in the inside, biocompatibility such as cartilage can be inserted into the dura, and the bio-adaptability of the ear implants can be improved.

1 is a block diagram showing a ear implant preparation system according to an embodiment of the present invention.
FIG. 2 is a flowchart illustrating a method of manufacturing a ear implant using the ear implantation system of FIG. 1. FIG.
FIG. 3 is an image showing the result of the step of dividing the ear area in the ear embedding method of FIG. 2;
4 is an image showing a result of a step of generating a three-dimensional model of the divided ear regions in the ear implantation method of FIG.
Figs. 5 and 6 are images showing the results of modifying the model generated in the ear embedding method of Fig.
Fig. 7 is an image showing the result of the step of generating the final ear model in the ear embedding method of Fig. 2;
FIG. 8 is an image showing the result of the step of modifying the final ear model in the ear implants production method of FIG. 2; FIG.
Fig. 9 is an image showing the result of the step of printing a corrected ear model in the ear embedding method of Fig. 2;
FIGS. 10A to 10D are flowcharts showing steps of performing ear reconstruction using ear embolization manufactured by the ear embedding method of FIG.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing. The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms.

The terms are used only for the purpose of distinguishing one component from another. The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise.

In the present application, the term "comprises" or "comprising ", etc. is intended to specify that there is a stated feature, figure, step, operation, component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

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

1 is a block diagram showing a ear implant preparation system according to an embodiment of the present invention. FIG. 2 is a flowchart illustrating a method of manufacturing a ear implant using the ear implantation system of FIG. 1. FIG.

FIG. 3 is an image showing the result of the step of dividing the ear area in the ear embedding method of FIG. 2; 4 is an image showing a result of a step of generating a three-dimensional model of the divided ear regions in the ear implantation method of FIG. Figs. 5 and 6 are images showing the results of modifying the model generated in the ear embedding method of Fig. Fig. 7 is an image showing the result of the step of generating the final ear model in the ear embedding method of Fig. 2; FIG. 8 is an image showing the result of the step of modifying the final ear model in the ear implants production method of FIG. 2; FIG. Fig. 9 is an image showing the result of the step of printing a corrected ear model in the ear embedding method of Fig. 2;

Hereinafter, the ear implant manufacturing system 100 according to the present embodiment and the ear implantation method using the ear implantation production system 100 will be described simultaneously with reference to the drawings.

More specifically, referring to FIG. 1 and FIG. 2, a medical image is input through an input unit 110 (step S10).

The medical image 101 received through the input unit 110 may be an image of CT, MRI or the like and may be an image of the entire brain including the normal ears.

1, 2, 3, and 4, the primary modeling unit 120 generates a model by dividing an ear area from the input medical image 101 (step S20).

More specifically, the primary modeling unit 120 includes a region dividing unit 121 and a base model generating unit 122, and the region dividing unit 121 divides the normal ear form from the medical image 101 The base model generating unit 122 generates the divided ear regions 102 as a three-dimensional model 103 (step S22).

That is, in the region dividing unit 121, only the ear region 102 is divided based on the normal ear shape from the medical image for the model for the opposite ear in a step to be described later, and in the base model generating unit 122, Reconstructs the normal ear-shaped ear region 102 to generate a three-dimensional model 103, i.e., a three-dimensional model of the normal ear.

For example, if the medical image 101 is an image in which the two-dimensional image is accumulated in the depth direction, the base model generating unit 122 generates a base image in the divided ear image 102, Dimensional model is reconstructed.

1, 2, 5, 6, and 7, the secondary modeling unit 130 generates three-dimensional (3D) image data generated by the base model generation unit 122 of the primary modeling unit 120, The model 103 is generated as the final ear model 104 corresponding to the opposite ear to be reconstructed (step S30).

More specifically, the secondary modeling unit 130 includes a model transformation unit 131 and a target model generation unit 132. The model transformation unit 131 transforms the generated three-dimensional model 103 to the opposite side (Step S31). The target model generation unit 132 generates the final ear as the three-dimensional model 104 based on the result of the modification performed by the model modification unit 131 (step S32).

That is, the model transforming unit 131 transforms the three-dimensional model 103 generated for the normal ear to correspond to the opposite ear, that is, an ear requiring reconstruction, based on the medical image 101 input from the input unit 110 .

In this case, it is needless to say that the model deforming unit 131 simply replaces the three-dimensional model 103 with respect to the normal ear in the opposite direction to the opposite ear and copies the opposite ear to the patient The shape of the skull or face of the opposite ear and the position at which the opposite ear is to be positioned.

Furthermore, the ear implants ultimately manufactured through the present embodiment correspond to the skeleton or skeleton of the ear requiring reconstruction, and do not include the skin of the actually reconstructed ear.

On the other hand, in the case of the three-dimensional model 103 for the normal ear, it is extracted from the medical image 101 and actually includes the skin of the patient.

Accordingly, the model deforming unit 131 further deforms the opposite ear deformed from the three-dimensional model 103 with respect to the normal ear in consideration of the thickness of the skin of the patient from the medical image 101. [

That is, the opposite ear shape is deformed so as to exclude the skin thickness of the patient.

Thus, the target model generating unit 132 generates the final ear as the three-dimensional model 104 based on the result of the modification performed by the model transforming unit 131.

1, 2 and 7, the model verification unit 140 verifies and stores the final ear model generated by the secondary modeling unit 130 (step S40).

In this case, if further modification to your model is required according to the result verified by the model verifying unit 140, the secondary modeling unit 130 can modify or change the generated ear model, and the model verifying unit 140 ), The model verification unit 140 stores the final model.

Meanwhile, in the target model generation unit 132, the thickness of the skin of the patient is excluded and the ear shape on the opposite side is deformed to form the final ear with the 3D model 104. In the model verification unit 140, The three-dimensional model 104 can be visualized as shown in Fig. 7 to take the thickness of the skin into consideration.

In addition, the model verifying unit 140 may verify whether there is no specific modification of the three-dimensional model 104 with respect to the final ear compared with the normal ear form first extracted in the medical image 101. [

1, 2 and 8, the fitness modeling unit 150 corrects the stored final ear model 104 in consideration of the surgical suitability to generate the final model 300 of the final ear model (Step S50).

  The modified final ear model 300 includes an earbug 310 formed in the same shape as the earbud and a tragus 320 extending upward from the lower end of the earbud 310 .

Thus, a space 301 is formed between the inner side of the pinna 310 and the transplant 320, and the space 301 corresponds to the eardrum in the patient's ear.

As described above, by modifying the final ear model 104 to include the ear part 310 and the migration part 320 and forming the space part 301, it is possible to improve the operability and operability of ear reconstruction through ear implantation Can be improved.

More specifically, FIGS. 10A to 10D are flowcharts showing steps of performing ear reconstruction using ear implantation manufactured by the ear implantation method of FIG.

Referring to FIGS. 10A to 10D, in the case of ear reconstruction using the ear implant, the operation is performed so that the ear implant penetrates through the skin tissue of the ear through the migration 320 formed at the end of the ear implant, do.

Thus, ear reconstruction can be performed effectively while minimizing the incision of the skin of the ear as the ear implants are rotated and inserted into the skin of the ear through the transplant without performing surgery to insert the entire ear implant into the inside of the ear.

Therefore, in the present embodiment, the fit model correcting unit 150 corrects the final ear model 104 to include the migration 320, and in the ear reconstruction operation through the ear implant made through the present embodiment, The surgical suitability and ease of operation of the present invention can be improved.

1, 2, and 9, the output unit 160 outputs the modified final ear model 300 to the 3D printer 200 (step S60) Prints the modified final ear model 300 to produce the ear implant 400. [

In this case, as shown in FIG. 9, the manufactured ear implant 400 has the same shape as that of the modified final ear model 300, but is fabricated so that the ear implant 400 is formed inside.

As described above, since the ear implant 400 is manufactured so as to form a porous body, a living body such as cartilage can be inserted into the porous body, and the inserted living body tissue can be connected to the inner living tissue of the ear after the ear reconstruction So that the biocompatibility can be improved.

In addition, in the case of inserting a living tissue such as cartilage in the above-described study, the biopsy can be inserted immediately at the time of surgery, and the ease of operation is improved. Further authorization is not necessary, so that general purpose and usability can be improved.

According to the embodiments of the present invention, the shape of the entire ear is modeled and manufactured as a 3D printer, so that unlike the method of collecting the conventional rib bone cartilage and performing ear reconstruction, ear reconstruction surgery is performed by inserting one ear implant The ease of operation and the completeness of ear reconstruction are improved.

In particular, patient compliance is improved by creating a contralateral ear model that requires reconstruction based on the patient's normal ear data, and patient conformity of the ear implants can be further improved by modifying the contralateral ear model depending on the face shape and location.

Furthermore, when the opposite ear model is created, the shape of the model is modified in consideration of the thickness of the skin covering the patient's ears, so that the symmetry of both ears can be enhanced to further improve patient compliance.

In addition, by modifying the final ear model to include migration, the ease of surgery can be improved in the actual implant surgery of the ear implant.

In addition, since the ear implants formed through the 3D printer are formed in the inside, biocompatibility such as cartilage can be inserted into the dura, and the bio-adaptability of the ear implants can be improved.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention as defined by the following claims. It can be understood that it is possible.

The ear implant system according to the present invention and the ear implantation method using the same have industrial applicability that can be used for ear reconstruction surgery.

100: ear implant system
110: input unit 120: primary modeling unit
121: area dividing unit 122: base model generating unit
130: Secondary modeling unit 131: Model transforming unit
132: target model generation unit 140: model verification unit
150: conforming model correction unit 160: output unit
200: 3D printer 300: Modified final ear model
310: Auricle portion 320: Migration
301: Space part 400: Ear implant

Claims (10)

An input unit for inputting a medical image photographed by a patient;
A primary modeling unit for generating a model by dividing an ear area from the medical image;
A second modeling unit for generating the generated model as a final ear model corresponding to an opposite ear that requires reconstruction;
A model verifying unit for verifying and storing the final ear model generated by the secondary modeling unit;
A fit model correcting unit for correcting the stored final ear model in consideration of the surgical suitability; And
And outputting the corrected final ear model to a 3D printer. The apparatus of claim 1, wherein the primary modeling unit comprises:
An area dividing unit dividing the ear area based on the normal ear shape from the medical image; And
And a base model generation unit for generating the divided ear regions as a three-dimensional model. 3. The apparatus of claim 2, wherein the secondary modeling unit comprises:
A model transformer for transforming the model generated by the base model generator to correspond to the opposite ear; And
And a target model generation unit for generating a final ear as a three-dimensional model based on the result of the modification performed by the model modification unit. 4. The image processing apparatus according to claim 3,
Wherein the model generated by the base model generation unit is copied to the opposite side and coordinates and shape are modified according to the face shape and position of the patient. 5. The image processing apparatus according to claim 4,
Wherein the shape of the generated model is modified in consideration of the thickness of the skin covering the ear of the patient. The method of claim 1,
Wherein the final ear model comprises an ear canal portion and a transition connected to the ear canal portion,
Wherein the ear canal is modified such that a space corresponding to the eardrum of the patient is formed between the ear canal and the migration. The 3D printer according to claim 1,
And printing the ear implant on the basis of the modified ear model. Receiving a medical image photographed by a patient;
Dividing an ear area from the medical image to generate a model;
Generating the generated model as a final ear model corresponding to an opposite ear that requires reconstruction;
Verifying and storing the generated final ear model;
Modifying the stored final ear model in view of surgical suitability; And
Outputting the modified final ear model and printing it to a 3D printer. 9. The method of claim 8, wherein dividing the ear area to generate a model comprises:
Dividing the ear area based on the normal ear form from the medical image; And
And creating the divided ear regions as a three-dimensional model. 10. The method of claim 9,
Transforming the generated model to correspond to the opposite ear; And
And generating a final ear as a three-dimensional model based on the modified result.

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