KR20210080288A - Phantom manufacturing method for airway intubation - Google Patents

Abstract

An embodiment of the present invention relates to a method for manufacturing a phantom for airway intubation training, which includes the steps of: receiving a medical image of a patient; extracting scan data of the anatomy of the patient using the medical image; generating a 3D printing model corresponding to each of patient's head, jawbone, cervical spine, tongue, skin, and airway by using the scan data; outputting a head unit, a jawbone unit, a cervical spine unit, a tongue unit and an airway unit corresponding to each of the patient's head, jawbone, cervical spine, tongue and airway by using the 3D printing model; and combining the output head unit, jawbone unit, cervical spine unit, tongue unit and airway unit to manufacture a phantom for airway intubation training.

Description

Phantom manufacturing method for airway intubation training {PHANTOM MANUFACTURING METHOD FOR AIRWAY INTUBATION}

Embodiments of the present invention relates to a method for manufacturing a phantom for airway intubation training and a phantom manufactured by the method.

Airway intubation is a method of inserting a tube into the trachea through the patient's mouth or nose. It is one of the most reliable airway maintenance methods, and is one of the most important emergency resuscitation measures used in cardiac arrest. When airway intubation is required, secondary upper airway obstruction due to edema, trauma, tumor, bleeding, apnea, loss of respiratory function, mechanical ventilation, or general anesthesia are necessary. Since most airway intubation is performed in an emergency situation, prompt and accurate airway intubation is an important factor in reviving the life of an emergency patient and restoring health.

A patient's life depends on the operator's ability to safely and competently intubate the airway. In other words, airway intubation is a technique that requires knowledge and ability at the same time, and the practitioner must perform repeated practice for many hours until mastery. Therefore, airway intubation practice should be conducted through continuous education, regular practice, and a practical course suitable for individual abilities. In particular, in the case of a difficult airway in which intubation is difficult due to a pediatric model or a specific disease, even though safer and more proficient airway intubation ability is required, in reality, it is difficult to repeatedly practice airway intubation on a human body.

In order to solve the above problems, the present invention provides a method for manufacturing a phantom for airway intubation training manufactured based on a patient's medical image.

According to an embodiment of the present invention, receiving a medical image of the patient, extracting scan data of the patient's anatomy using the medical image, the patient's head, jawbone, cervical spine, generating a three-dimensional printing model corresponding to each of the tongue, skin, and airway; a head unit, jaw bone unit, and cervical spine unit corresponding to each of the patient's head, jawbone, cervical spine, tongue and airway using the three-dimensional printing model , A phantom for airway intubation training, comprising the steps of outputting a tongue unit and an airway unit, and manufacturing a phantom for airway intubation training by combining the output head unit, jaw unit, cervical vertebrae unit, tongue unit and airway unit provide a way

In one embodiment of the present invention, the step of outputting the airway unit may be a step of outputting a plurality of units having the same anatomical structure but different physical properties.

In one embodiment of the present invention, the tongue unit is output as a soft material according to the scan data of the anatomical structure, one or more through-holes may be formed.

In an embodiment of the present invention, the step of outputting the cervical vertebrae unit includes outputting the skeleton of the cervical vertebrae using the three-dimensional printing model and a cervical ligament of a silicone material in the spaced space of the outputted skeletal part of the cervical vertebra It may include the step of forming

In one embodiment of the present invention, after the step of manufacturing the phantom for airway intubation training, the method may further include generating a skin unit disposed on the exterior of the phantom for airway intubation training using the three-dimensional printing model. have.

In one embodiment of the present invention, the step of generating the skin unit comprises the steps of manufacturing a molding using the 3D printing model and wrapping the phantom for airway intubation training using the molding, between the spaced spaces It may include the step of injecting silicone into the skin unit to generate.

One embodiment of the present invention provides a phantom for airway intubation training manufactured by the method for manufacturing a phantom for airway intubation training of any one of the above methods.

Other aspects, features and advantages other than those described above will become apparent from the following drawings, claims, and detailed description of the invention.

Since the method for manufacturing a phantom for airway intubation training according to embodiments of the present invention is designed based on a medical image of an actual patient, it is possible to manufacture a patient-specific phantom for airway intubation training. In addition, the method for manufacturing a phantom for airway intubation training according to embodiments of the present invention outputs a plurality of airway units having different physical properties, and using them, an airway unit similar to the airway material of an actual patient can be selected and used for training. By doing so, effective airway intubation training can be induced.

1 is a block diagram schematically showing a phantom manufacturing system for airway intubation training according to an embodiment of the present invention.
2 is a flowchart sequentially illustrating a method for manufacturing a phantom for airway intubation training according to an embodiment of the present invention.
3 to 14 are diagrams for explaining each step of the method of manufacturing the phantom for airway intubation training of FIG. 2 .

Since the present invention can apply various transformations and can have various embodiments, specific embodiments are illustrated in the drawings and described in detail. Effects and features of the present invention, and a method of achieving them, will become apparent with reference to the embodiments described below in detail in conjunction with the drawings. However, the present invention is not limited to the embodiments disclosed below and may be implemented in various forms.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, and when described with reference to the drawings, the same or corresponding components are given the same reference numerals, and the overlapping description thereof will be omitted. .

In the following embodiments, terms such as first, second, etc. are used for the purpose of distinguishing one component from another, not in a limiting sense.

In the following examples, the singular expression includes the plural expression unless the context clearly dictates otherwise.

In the following embodiments, terms such as include or have means that the features or components described in the specification are present, and the possibility of adding one or more other features or components is not excluded in advance.

In the following embodiments, when it is said that a part such as a film, region, or component is on or on another part, it is not only when it is directly on the other part, but also another film, region, component, etc. is interposed therebetween. Including cases where there is

In the drawings, the size of the components may be exaggerated or reduced for convenience of description. For example, since the size and thickness of each component shown in the drawings are arbitrarily indicated for convenience of description, the present invention is not necessarily limited to the illustrated bar.

Where certain embodiments are otherwise feasible, a specific process sequence may be performed different from the described sequence. For example, two processes described in succession may be performed substantially simultaneously, or may be performed in an order opposite to the order described.

In the following embodiments, when a film, region, or component is connected, other films, regions, and components are interposed between the films, regions, and components as well as when the films, regions, and components are directly connected. It also includes cases where it is indirectly connected. For example, in this specification, when it is said that a film, a region, a component, etc. are electrically connected, not only the case where the film, a region, a component, etc. are directly electrically connected, but also other films, regions, components, etc. Indirect electrical connection is also included.

1 is a block diagram schematically showing a phantom manufacturing system 1 for airway intubation training according to an embodiment of the present invention.

The technical idea of the present invention is to manufacture a phantom for airway intubation training. In particular, a phantom is manufactured by realistically modeling a pediatric model or a difficult airway due to a specific disease based on a patient's medical image. characterized in that

Referring to FIG. 1 , the phantom manufacturing system 1 for airway intubation training according to an embodiment of the present invention includes a medical image receiving unit 10 , a processor 20 , a 3D printer 30 , and a skin unit generating unit 40 . ) and a coupling part 50 .

The medical image receiving unit 10 receives a medical image of a patient from the outside. Here, the medical image receiving unit 10 may provide a function for communicating with the external medical image acquiring device 2 through a network, and the medical image may be information generated from the external medical image acquiring device 2 . have. For example, the medical image is a medical imaging device such as a computed tomography (CT) device, a magnetic resonance imaging (MRI) device, a positron emission tomography (PET) device, a computed tomography simulator, and a computed radiography (CR) device. It may be information generated by photographing the anatomical structure of the patient through the The generated medical image is converted into a medical digital image communication standard (DICOM, Digital Imaging and Communications in Medicine) and is represented in the form of a DICOM RT (Radiation Therapy) data file.

The processor 20 may be configured to process instructions of a computer program by performing basic arithmetic, logic, and input/output operations. Here, the 'processor' may refer to a data processing device embedded in hardware, for example, having a physically structured circuit to perform a function expressed as a code or an instruction included in a program. As an example of the data processing device embedded in the hardware as described above, a microprocessor, a central processing unit (CPU), a processor core, a multiprocessor, an application-specific integrated (ASIC) Circuit) and a processing device such as an FPGA (Field Programmable Gate Array) may be included, but the scope of the present invention is not limited thereto. The processor 20 may include a scan data extraction unit 210 and a 3D printing model generation unit 220 .

Here, the scan data extraction unit 210 may extract scan data of the anatomical structure of the patient from the medical image. The scan data extraction unit 210 scans data from mesh models of semantic structures such as organs, bones, airways, or vasculature from the medical image. can be extracted automatically.

The 3D printing model generation unit 220 may generate 3D printing models corresponding to each of the patient's head, jawbone, cervical spine, tongue, skin, and airway by using the scan data. In this case, the 3D printing model generation unit 220 may use the scan data to generate a first printing model corresponding to the head, jawbone, and cervical spine corresponding to bones, and a second printing model corresponding to the tongue and airway. . Since the head, jawbone, and cervical vertebrae are formed of a hard material, the first printing model may be generated by reflecting the material. In addition, since the tongue and airway are formed of a flexible material rather than the head, jawbone, and cervical spine, the second printing model may be generated by reflecting the above-described material. On the other hand, the 3D printing model generating unit 220 generates a molding model formed to be spaced apart by the thickness of the skin with respect to the first printing model by using scan data to generate a 3D printing model corresponding to the skin. can do.

The 3D printer 30 may output a head unit, a jawbone unit, a cervical vertebrae unit, a tongue unit, and an airway unit corresponding to each of the patient's head, jawbone, cervical spine, tongue, and airway by using the 3D printing model. The 3D printer 30 may use various methods such as fused deposition modeling (FDM), stereolithography apparatus (SLA), drop on demand (DoD), electron beam melting (EBM), binder jetting (BJ), and the like. The 3D printer 30 may include a unit output unit 310 for outputting units using the first printing model and the second printing model, and a molding output unit 320 for outputting moldings using the molding model. can In this case, the unit output unit 310 and the molding output unit 320 may be respective printer devices, but of course, may be formed of one device.

The skin unit generating unit 40 may generate a skin unit using each of the output units and moldings. As will be described later, the skin unit generating unit 40 may generate a skin unit by combining the units and molding, and injecting silicon into a spaced apart space.

The coupling unit 50 may combine the output head unit, jaw unit, cervical unit, tongue unit and airway unit to manufacture a phantom for airway intubation training. In addition, the coupling unit 50 can manufacture a completed phantom for airway intubation training by arranging the skin unit on the exterior combined with the units.

Hereinafter, a method of manufacturing a phantom for airway intubation training using the phantom manufacturing system 1 for airway intubation training having the above-described structure will be described.

2 is a flowchart sequentially illustrating a method for manufacturing a phantom for airway intubation training according to an embodiment of the present invention, and FIGS. 3 to 14 are diagrams for explaining each step of the method for manufacturing a phantom for airway intubation training of FIG. 2 to be.

First, referring to FIGS. 2 and 3 , the method for manufacturing a phantom for airway intubation training according to an embodiment of the present invention receives a patient's medical image from an external image acquisition device (S100). The medical image of the patient may be any medical image including the anatomical structure information of the patient, for example, magnetic resonance imaging (MRI), computed tomography (CT) image, positron emission tomography (PET) image. , may include at least one image information of a functional MRI (fMRI) image, a fluoroscopic image, an ultrasound image, or a single photon emission tomography (SPECT) image. Hereinafter, for convenience of explanation, a case in which the medical image is a computed tomography (CT) image will be mainly described as shown.

Next, referring to FIGS. 2 and 4 , in the method of manufacturing a phantom for airway intubation training, the scan data extracting unit 210 extracts scan data of the patient's anatomy using the medical image provided (S200). The scan data extractor 210 may extract an anatomical structure, such as an organ, bone, airway, or vasculature, as scan data from the medical image. The left figure of FIG. 4 is a diagram illustrating a process of scanning an anatomical structure from a medical image, and the right figure of FIG. 4 is a diagram illustrating the scan data of the anatomical structure extracted through the scan. As shown, the scan data may be extracted from the medical image for each organ.

Next, referring to FIGS. 2 and 5 , the patient's head (M0), jawbone (M1), cervical spine (M2), and tongue (M4) using the scan data by the 3D printing model generation unit 220 , a 3D printing model corresponding to each of the skin (not shown) and the airway M3 is generated (S300). In this case, the airway M3 and the tongue M4 may be configured as one 3D printing model. In addition, the 3D printing model may be generated in consideration of not only the structure but also the physical properties of the material.

Next, referring to FIGS. 2 and 6 , the patient's head (M0), jawbone (M1), cervical spine (M2), tongue (M4) and The head unit P0, the jaw unit P1, the cervical vertebrae unit P2, the tongue unit P3, and the airway unit P4 corresponding to each of the airways M3 may be output (S400).

Referring to FIG. 7 , the head unit P0 and the jaw bone unit P1 may be movably coupled to reflect the movement of the temporomandibular joint of the patient. Specifically, the head unit P0 has a structure reflecting the three-dimensional printing model, as well as a coupling member 110 to which the jaw bone unit P1 can be coupled may be further output. At this time, the coupling member 110 is linear movement in one direction after the opening 111 into which the joint member 120 of the jaw bone unit (P1) can be retracted and the joint member 120 of the jaw bone unit (P1) is retracted (sliding). ) or may include a receiving portion 112 that enables rotation (rotating). Here, the receiving portion 112 has an extension section extending in one direction, which is different from the direction in which the joint member 120 is retracted, so that the joint member 120 can slide, and at the distal end of the receiving portion 112 . It may include an arranged curvature section.

8 and 9 , as an embodiment, the tongue unit P4 and the airway unit P3 may be output as a connected structure. As another embodiment, the airway unit (P3) may be made of a structure detachable with respect to the tongue unit (P4). Specifically, in the process of outputting the airway unit P3, the method for manufacturing a phantom for airway intubation training may output a plurality of airway units P3 having the same anatomical structure but different physical properties. Through this, the operator performing airway intubation can induce more accurate airway intubation training by selecting the airway unit P3 having the most similar physical properties to the actual patient's airway and using it in combination with the tongue unit P4.

On the other hand, the tongue unit (P4) is output in a soft acrylic material according to the scan data of the anatomical structure, in this case, one or more through-holes (H) may be formed. The tongue unit (P4) is formed in a three-dimensional structure corresponding to the anatomy of the patient, and when external pressure is applied by intubation of the airway, its appearance may be deformed. In particular, if the tongue unit (P4) is deformed due to the nature of the soft acrylic material, it may be somewhat difficult to restore. One embodiment of the present invention, in order to solve this problem, by forming one or more through-holes (H) on the surface of the tongue unit (P4), even if the appearance is deformed by an external force, the air through the through-hole (H) Allows it to be restored to its initial shape by inflow. In addition, the tongue unit (P4) may have a structure capable of supporting its appearance at a pressure below a certain level by further forming the support 140 in the inner space.

On the other hand, the tongue unit (P4) further includes a first connection member 130 connected to the coupling member 110 of the head unit P0 described above and a second connection member 135 connected to the jaw bone unit P1. can do. The phantom manufacturing system for airway intubation training (1), if necessary, further outputs the uvula unit (P5) corresponding to the patient's uvula and combines it with the tongue unit (P4), resulting in more faithful output to the patient's anatomical structure can be derived.

Next, referring to FIGS. 2, 10 and 11 , the method for manufacturing a phantom for airway intubation training uses a three-dimensional printing model to generate a skin unit disposed on the exterior of a phantom for airway intubation training (S500). Specifically, the step of generating the skin unit (S500) is to manufacture the moldings (g1, g2, g3) using the three-dimensional printing model, and to use the moldings (g1, g2, g3) to create a phantom for airway intubation training. After wrapping, a skin unit can be created by injecting silicone between the spaced spaces. For example, as shown in FIG. 11 , after wrapping the head unit P0 using the first molding g1 output to have a spaced apart space with respect to the head unit P0, the inlet g11 connected to the spaced space By injecting silicone, a skin unit can be created. The skin unit may be created to depict a color and texture similar to that of the patient's skin.

Referring further to FIG. 12 , the method for manufacturing a phantom for airway intubation training may further generate the cervical vertebrae ligament S1 in the same manner as in the process of generating the skin unit. In other words, the cervical vertebra unit (P2) is a silicone cervical ligament part (P22) disposed in a space between the outputted cervical vertebrae skeletal part P21 and the output cervical vertebrae skeletal part P21 using a three-dimensional printing model. may include. At this time, the cervical ligament part (P22) is to be formed by using the skeleton part (P21) of the cervical vertebra output using a three-dimensional printer, and the third molding (g3) that forms a spaced space with respect to the skeleton part (P21). can The phantom manufactured by the method for manufacturing a phantom for airway intubation training according to an embodiment of the present invention may depict the patient's neck tilted through the cervical vertebral ligament (P22).

Next, referring to FIGS. 2, 13 and 14 , the method for manufacturing a phantom for airway intubation training includes the output head unit (P0), jawbone unit (P1), cervical vertebrae unit (P2), tongue unit (P4) and airway unit. (P3) is combined to prepare a phantom (P) for airway intubation training (S600). In addition, by placing the generated skin unit on the exterior of the phantom for airway intubation training, it is possible to complete the phantom (P) for airway intubation training.

As described above, since the method for manufacturing a phantom for airway intubation training according to embodiments of the present invention is designed based on a medical image of an actual patient, it is possible to manufacture a patient-specific phantom for airway intubation training. In addition, the method for manufacturing a phantom for airway intubation training according to embodiments of the present invention outputs a plurality of airway units having different physical properties, and using them, an airway unit similar to the airway material of an actual patient can be selected and used for training. By doing so, effective airway intubation training can be induced.

The specific implementations described in the present invention are only examples, and do not limit the scope of the present invention in any way. For brevity of the specification, descriptions of conventional electronic components, control systems, software, and other functional aspects of the systems may be omitted. In addition, the connection or connection members of the lines between the components shown in the drawings exemplarily represent functional connections and/or physical or circuit connections, and in an actual device, various functional connections, physical connections that are replaceable or additional may be referred to as connections, or circuit connections. In addition, unless there is a specific reference such as "essential" or "importantly", it may not be a necessary component for the application of the present invention.

Therefore, the spirit of the present invention should not be limited to the above-described embodiments, and the scope of the spirit of the present invention is not limited to the scope of the scope of the present invention. will be said to belong to

1: Phantom manufacturing system for airway intubation training
10: medical image receiving unit
20: processor
30: 3D printer
40: skin unit generating unit
50: coupling part

Claims (7)

receiving a patient's medical image;
extracting scan data of the patient's anatomy using the medical image;
generating a 3D printing model corresponding to each of the patient's head, jawbone, cervical spine, tongue, skin, and airway by using the scan data;
outputting a head unit, a jaw bone unit, a cervical vertebrae unit, a tongue unit, and an airway unit corresponding to each of the patient's head, jawbone, cervical spine, tongue and airway using the 3D printing model; and
Combining the output head unit, jaw unit, cervical vertebrae unit, tongue unit and airway unit to manufacture a phantom for airway intubation training,
The 3D printing model is generated based on the structure of the coupling member for coupling between the structures and units corresponding to each of the patient's head, jawbone, cervical spine, tongue, skin, and airway included in the scan data,
A method for manufacturing a phantom for airway intubation training. According to claim 1,
The step of outputting the airway unit is a step of outputting a plurality of units having the same anatomical structure but different physical properties, a method for manufacturing a phantom for airway intubation training. According to claim 1,
The tongue unit is output as a soft material according to the scan data of the anatomical structure, and one or more through-holes are formed, a phantom manufacturing method for airway intubation training. According to claim 1,
The step of outputting the cervical vertebrae unit,
outputting the skeletal part of the cervical spine using the three-dimensional printing model; and
Forming a cervical ligament part of a silicone material in the spaced space of the outputted skeletal part of the cervical vertebrae; including; According to claim 1,
After the step of manufacturing the phantom for airway intubation training,
Using the 3D printing model to generate a skin unit disposed on the exterior of the phantom for airway intubation training; further comprising, a method for manufacturing a phantom for airway intubation training. 6. The method of claim 5,
The step of generating the skin unit,
manufacturing a molding using the 3D printing model; and
After wrapping the phantom for airway intubation training using the molding, injecting silicone between the spaced spaces to create the skin unit; Containing, a method for manufacturing a phantom for airway intubation training. A phantom for airway intubation training manufactured by the method for manufacturing a phantom for airway intubation training according to any one of claims 1 to 6.

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