KR100884354B1 - Ear plug for forming reference axis in ct taking - Google Patents

Abstract

The present invention includes a main body portion inserted into the patient's ear hole and a marker provided inside the main body portion and represented by a marker point capable of forming a reference axis in the CT scan image. Presenting a reference shaft forming earplug that can further include a handle for insertion or withdrawal in the insertion by inserting the earplug into the inside of both ear holes of the patient and CT imaging by analyzing the CT image by analyzing the CT image by the reference line It relates to a reference shaft forming earplugs used for Citi shooting.

Earplugs, CT scan, marker

Description

EAR PLUG FOR FORMING REFERENCE AXIS IN CT TAKING}

1A to 1C and 2A to 2C are perspective views, a front view, and a side view showing an earplug for forming a reference axis according to an embodiment of the present invention.

3A to 3C are conceptual views illustrating insertion of an earplug for forming a reference axis into both ear holes of a patient, a conceptual view showing a CT imaging method, and a photographed image taken by the CT imaging method according to an embodiment of the present invention; The figure shown.

<Description of the symbols for the main parts of the drawings>

100,200: earplugs for forming the reference shaft 110,210: main body

120,220: marker 130,230: handle

140,240: Contact Ring

The present invention relates to an earplug for forming a reference axis used for CT imaging, and more specifically, in the treatment of a patient, CT scans are performed before and after the procedure, respectively, to examine the shape of the patient's teeth and bones. Criteria used for X-ray imaging to form reference axes for comparing pre- and post-treatment images, as well as enabling the creation of photographs at the same angle when forming CT, CT images. It relates to an earplug for shaft formation.

In the field of medical care, a computed tomography (CT) X-ray apparatus (hereinafter referred to as a "CT imaging apparatus") transmits a portion of a body to be photographed at a predetermined amount of X-ray flux, and the X-ray sensor detects the transmitted X-ray quantity. It is a photographing apparatus that measures and records the measured data in a memory, obtains an X-ray absorption rate of each point of a body photographing portion by a computer, and reconstructs it into an image.

On the other hand, in the dental treatment for diagnosing and treating dental abnormalities and facial abnormalities, the dental head or facial abnormalities are diagnosed based on the lateral and epitaxial photographs obtained by photographing the head of the patient with the CT imaging apparatus. Orthodontic treatment only, or if the cause is due to the abnormalities of the jaw bone, if necessary after the surgical operation of the jaw area as well as post-operative correction treatment.

In the dental treatment as described above, it is most important to secure accurate diagnosis data on the patient's orthodontism and facial appearance. The diagnostic data were obtained by comparative analysis, and it is meaningful to make images with the same angle as those of the data even when making CT, CT images.

Accordingly, the present invention is to solve the above-mentioned disadvantages and problems of the prior art, including a main body portion inserted into the patient's ear hole and a marker provided inside the main body portion, connected to the main body portion and the patient By presenting a reference shaft forming earplug which may further include a handle for inserting or withdrawing into both ear holes of the ear, and inserting the ear plug into both ear holes of the patient, and then CT imaging to analyze the CT image. It is an object of the present invention to provide an earplug for forming a reference axis, which is used for Citi shooting, to provide a reference line.

The object of the present invention is the main body portion is inserted into the ear hole of the patient; And a marker provided inside the main body and represented by a marker point capable of forming a reference axis in the CT-photographed image.

In addition, the object of the present invention is also achieved by a reference shaft forming earplug, which is connected to a predetermined region of the body portion, and further comprising a handle portion for inserting or withdrawing the body portion into the ear hole of the patient.

In addition, the above object of the present invention is also achieved by a reference shaft forming earplug, characterized in that it comprises at least one contact ring in close contact with the inner surface of the ear canal between the main body portion and the handle portion.

The object of the present invention is also achieved by an earplug for forming a reference axis, wherein the marker is made of a radiopaque material.

In addition, the above object of the present invention is also achieved by a reference shaft forming earplug, characterized in that the main body portion, the handle portion and the contact ring are made of a radiation transmitting material.

In addition, the above object of the present invention is also achieved by a reference shaft forming earplug, characterized in that the marker is made of qutta percha or titanium, an isoprene polymer.

In addition, the above object of the present invention is also achieved by a reference shaft forming earplug, characterized in that the marker is in the form of a sphere and is located in the center of the main body portion.

Details of the above objects and technical configurations and the effects thereof according to the present invention will be more clearly understood by the following detailed description with reference to the drawings showing preferred embodiments of the present invention. In addition, in the drawings, the length, thickness, etc. of layers and regions may be exaggerated for convenience. Like numbers refer to like elements throughout.

The earplugs for forming the reference shaft of the present invention may be composed of a size body portion and a marker.

The body portion is inserted into and fixed in the patient's ear hole and should be equal to or slightly larger than the diameter of the patient's ear hole. This is because the earplugs for forming the reference shaft of the present invention should be fixed at the same position while being inserted into both ear holes of the patient. When the main body part is smaller than the diameter of the ear hole, the main body moves and thus the marker inside the main body moves. To do that.

Therefore, the reference axis forming earplug of the present invention is inserted into both ear canal of the patient, and the markers of the reference axis forming ear plug inserted into both ear canal are also located at the same position.

The main body may further include a main body inserted into the ear hole of the patient and a handle part which is coupled to a predetermined area of the main body to conveniently insert or pull the main body into the ear hole of the patient.

In this case, at least one contact ring may be provided between the main body part and the handle part to be in close contact with the inner surface of the ear canal of the patient, and the close ring is closely attached to the inner surface of the ear canal of the patient. Not only does not easily fall out due to the movement of the patient, but also serves to position the marker in the center of the ear canal.

The body portion is a portion inserted into the ear hole of the patient, harmless to the human body, made of a soft material, and particularly preferably made of a radiation transmitting material.

The marker may be provided anywhere inside the main body, but is preferably located at the center and preferably made of a radiopaque material.

The body portion may be provided in various forms, but is preferably provided in a spherical shape, and particularly preferably made of a radiation transmitting material. This is because the main body is inserted into the ear canal of the patient because the main body is spherical and the marker is located at the center of the main body so that the marker can always be located at the right center in any direction.

In addition, the handle portion and the contact ring is preferably made of a radiopaque material.

At this time, the main body portion and the handle portion is made of a radiation-transmissive material and the marker is made of a radiopaque material because the reference axis-shaping earplugs of the present invention are inserted into both ears of the patient when the CT scan is taken This is because the insertion part and the main body part do not appear in the CT scan image, and only the marker should appear as a marker point.

That is, a reference axis is formed by connecting two marker points shown in the CT image, and the shape of the tooth or bone of the patient can be precisely measured using the reference axis.

Thus, the body portion and the handle portion must be made of a material transmissive to radiation and the marker is made of an impermeable material. At this time, the radiopaque material that can be used as the marker is isoprene polymer (qutta percha) or titanium and the like.

The marker is preferably located at the center of the body part by being located at the same position as described above.

That is, when comparing two-dimensional or three-dimensional CT images of the patient before and after the treatment, accurate comparison can be made by editing the CT images by using the marker points as a reference line.

In the reference axis forming earplug of the present invention, the markers are positioned at the same position by inserting the main body including the marker into both ear holes of the patient, and CT imaging the head of the patient with the reference axis forming earplug of the present invention. Two marker points are formed on the 3D CT image. By connecting the two marker points, it is possible to form a reference axis on a three-dimensional image, and this reference axis is the same reference point when forming the three-dimensional CT scan image of two-dimensional side, square and parietal parietal radiographs. Can be used as an axis.

1A to 1C and 2A to 2C are a perspective view, a front view, and a side view illustrating an earplug for forming a reference shaft according to an embodiment of the present invention.

1A to 1C and 2A to 2C, the earplug 100 for forming a reference shaft according to an embodiment of the present invention has a main body portion inserted into the ear canal of a patient as shown in FIG. 1A. 110 and a marker 120 provided inside the main body 110.

When the reference shaft forming earplug 100 including the main body 110 and the marker 120 is inserted into the patient's ear hole, the main body 110 is inserted into the patient's ear hole and fixed, and the marker 120 is located in the center of the ear canal. In addition, when the main body 110 is inserted into both ear holes of the patient one by one, the markers 120 in both ear holes are located at the same position.

However, if the main body 110 is inserted into the ear canal as described above, it may be easily separated by the movement of the patient, and it may be cumbersome for the patient or the photographer to insert or withdraw the reference shaft forming earplug 100. .

In order to compensate for the above disadvantages, as illustrated in FIGS. 1B and 1C, it is preferable to further include a handle 130 connected to a predetermined area of the main body 110. The handle 130 may be provided in various forms, but may be spherical as in FIG. 1B or may be an elliptical disk as in FIG. 1C. The handle 130 may be provided in various forms in addition to those shown in FIGS. 1B and 1C, and the handle 130 may be provided with a function of inserting or withdrawing the main body 110. For example, it is also possible to form a 'b' shape and one end is connected to the main body 110.

In addition, at least one contact ring 140 may be provided between the main body 110 and the handle 130 to be in close contact with the inner surface of the patient's ear hole, and the contact ring 140 may have the inner surface of the patient's ear hole. By being in close contact with the reference shaft-shaping earplug 100 of the present invention not only serves to easily fall out by the movement of the patient, but also serves to position the marker 120 in the center of the ear canal.

Accordingly, as shown in FIGS. 2A to 2C, the earplugs for forming the reference shaft according to the exemplary embodiment of the present invention may include a main body 110 and a handle 130. 2A to 2C illustrate that the handle 130 and the contact ring 140 described with reference to FIGS. 1A to 1C are provided, but each may or may not be provided. In the following, likewise, the handle 130 and the contact ring 140 may be selectively provided on the main body 110.

 In this case, the main body 110 may be provided in various forms, but preferably provided in a spherical form. In addition, the main body 110 is preferably made of a radiation-transmissive material because it does not appear in the CT image.

The marker 120 is spherical and has a diameter of about 1 mm and is located at the center of the main body 110. In this case, the marker 120 is preferably made of a radiopaque material by appearing in the CT image.

The main body 110 is configured to insert the earplug 100 for forming the reference shaft of the present invention into the ear hole of the patient, and is preferably made of a soft material that is harmless to the human body by being inserted into the ear hole of the patient.

At this time, the main body 110, the handle 130 and the contact ring 140 is made of a radiation transmitting material and the marker 120 is made of a radiopaque material is the ear plug 100 for forming the reference axis of the present invention. This is because the CT is inserted into both ears of the patient when the CT scan is taken, the main body 110, the handle 130 and the contact ring 140 does not appear on the CT scan image and the marker 120 Only) should appear as marker points.

That is, a reference axis is formed by connecting two marker points shown in the CT image, and the shape of the tooth or bone of the patient can be precisely measured using the reference axis.

In this case, the radiopaque material that may be used as the marker 120 includes isoprene polymer, such as giant percha or titanium.

Therefore, the reference shaft forming earplug according to an embodiment of the present invention is composed of a body portion made of a radiopaque material and a marker made of a radiopaque material, so that the reference shaft forming earplug is inserted into the ear canal in a patient. By using a CT imaging apparatus, the markers are photographed on the photographed image as marker points, and form a reference axis based on the marker points of the photographed image.

By using this, images can be accurately compared by using the reference axis, such as before and after treatment or before and after growth, or after growth, and the 3D image can be accurately compared. When viewed in the dimensional image can be displayed at the same angle. In addition, it is possible to analyze the previously taken side hair, hair, and the following parietal standard radiograph using the reference axis formed by the present invention.

3A to 3C are conceptual views illustrating insertion of an earplug for forming a reference axis into both ear holes of a patient, a conceptual view showing a CT imaging method, and a photographed image taken by the CT imaging method according to an embodiment of the present invention; The figure shown.

Referring to FIGS. 3A to 3C, the reference shaft forming earplug 500 according to the exemplary embodiment of the present invention is inserted into both ear holes of the patient 400.

When the reference axis-shaping earplug 500 is inserted into both ear holes of the patient 400, the reference axis-shaping earplug 500 is positioned at the same position if the reference axis-shaping earplug 500 is inserted in the same position. To be located.

The patient 400 having the reference axis forming earplug 500 inserted therein is positioned in the CT imaging apparatus 600, and the X-ray generator 610 generates X-rays to irradiate the patient 400. The X-ray irradiated to the patient 400 is detected by the X-ray sensor 620 to obtain a photographed image 450.

In this case, the markers of the reference axis forming earplug 500 are displayed as marker points 510 on the captured image 450. In addition, the reference axis 510 connecting the marker points 510 displayed on the captured image 450 may be formed.

Accordingly, by performing CT imaging using the earplugs for forming the reference axis of the present invention, the reference axis can be formed on a three-dimensional surface, thereby forming the same reference axis as the two-dimensional head standard radiograph. That is, when forming a two-dimensional photographed image, such as side hair, hair, and parietal regular radiograph using the three-dimensional image taken by the CT device, it is possible to produce an image of the same angle.

Although the present invention has been shown and described with reference to preferred embodiments as described above, it is not limited to the above-described embodiments and those skilled in the art without departing from the spirit of the present invention. Various changes and modifications will be possible.

Therefore, by performing CT imaging using the earplugs for forming the reference axis of the present invention, the reference axis can be formed on a three-dimensional image, and thus, the same reference axis as the two-dimensional head standard radiograph can be formed. That is, when forming the side hair, the hair and the parietal head radiograph using the photographed image taken by the CT device, there is an effect that can produce an image of the same angle.

In addition, the reference axis forming earplug according to the present invention has a three-dimensional position (exactly the position of the markers) of the patient's ears in the captured image by performing CT imaging after inserting the reference axis forming earplug having the marker in both ears of the patient. Since the same reference axis can be set in three-dimensional images taken two or more times at time intervals, it is useful for evaluating the effects and facial growth before and after the procedure.

Claims (4)

A main body portion inserted into the ear canal of the patient; And And a marker provided inside the main body and represented as a marker point capable of forming a reference axis in the CT image. The method of claim 1, The marker is made of a radiopaque material, wherein the body portion is made of a radiopaque material earplugs for forming a reference axis. The method of claim 1, The earplugs for forming the reference shaft A handle part connected to a predetermined region of the main body part and configured to insert or withdraw the main body part into the ear hole of the patient; And At least one contact ring in close contact with the inner surface of the ear between the body portion and the handle portion; Ear reference for forming the reference shaft further comprises. The method according to any one of claims 1 to 3, The marker has a spherical shape, the earplugs for forming a reference axis, characterized in that located in the center of the body portion.

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