KR20170114662A - Radiation Protection Equipment for Radiography - Google Patents

Abstract

The present invention can more effectively realize radiation protection for a thyroid, which is a cancer that is highly likely to develop cancer in radiography for dental treatment, can further improve the quality of a diagnostic image, and furthermore, Which is capable of radiation shielding against radiation.
A radiation protection apparatus according to the present invention comprises: a front protection part for protecting a thyroid gland by shielding a front part of the neck part from the radiation; A rear protecting part provided on the opposite side of the front protecting part to shield the rear part of the neck part from the radiation to protect the thyroid gland; A support wear which is worn on the body and supports the front and rear protection parts such that the front protection part and the rear protection part are disposed at a front part and a rear part of the neck part; And a skin contact inducing part for enhancing contact of the skin with at least one of the front protecting part and the rear protecting part; The side sections between the rear protective portion and the front protective portion are exposed to radiation.

Description

[0001] Radiation Protection Equipment for Radiography [

The present invention relates to a radiological shielding apparatus, and more particularly, to a radiological shielding apparatus capable of protecting a thyroid, which is an organ with a high possibility of cancer, from radiation in radiographic imaging such as a dental panoramic radiography or a skull radiography, The present invention relates to a radiological shielding device capable of realizing radiation shielding for a brain and an eyeball region.

Generally, a radiographic apparatus (X-ray equipment) is a device which can detect the radiation transmitted through a subject by a radiation detector and image the inside of the subject, and is used for diagnosis of a patient, examination of baggage at an airport, And non-destructive inspection of civil engineering structures.

Since the radiation has a deleterious effect on the human body, even if a human tissue is exposed to a small amount of radiation, a gene or a cell may be deformed and cause various cancers. If a genetic mutation occurs, And can be inherited to the next generation, it is important to avoid excessive radiation exposure or unnecessary radiation exposure during radiography.

Therefore, in case of radiography of human tissue for the purpose of diagnosis and the like, it is necessary to wear a radiation protection suit or protector so that an unnecessary area other than a tissue requiring diagnostic information is not exposed to radiation, but in reality, There is no separate protective equipment.

On the other hand, the purpose of the radiological apparatus including the dental panorama (dental panorama) used in the dentistry is to measure the size and contour of the jaw (jaw bone), the anatomical variation of the bone along the vertical and horizontal axes (Dentist) with information on the pathological elements and procedures that may be present in the jaw, and the imaging information provided by the radiological apparatus may be used to determine the optimal procedure And can lead to long-term success after the procedure, which may be important throughout the process of establishing the treatment plan and all subsequent steps.

Radiographic imaging is a method of acquiring images by irradiating an anatomical structure of an area of interest (X-ray), and examples of the radiographic image used for dental treatment include an alveolar bone and a facial bone A panoramic x-ray image (hereinafter abbreviated as "panoramic image"), a CT (computerized tomography) image photographed in a more precise three-dimensional (3D) image, Cephalometric images taken from the front, back, front, left, or right of the head.

Particularly, panoramic radiography, which is one of the extraterrestrial radiography methods, is a radiographic method that is mainly performed in dental clinics. As the dental penetration rate of panoramic radiography equipment increases, the frequency of use is greatly increased. This is the test method.

In the above-described radiography, the thyroid located in the throat is a vulnerable organ which is highly vulnerable to the development of cancer by radiation. Therefore, appropriate radiation protection is required. However, Artificial shading, in particular metal artifacts, is formed, so that proper protection is not achieved at the time of radiographic imaging.

More specifically, in the case of providing a radiation shielding member around the neck to protect the thyroid gland despite the need to protect the thyroid gland from radiation, the radiation shielding member forms an artifact in the panoramic image Therefore, there are restrictions on the use of protective equipment.

The problem of radiation exposure during panoramic radiography and the problem of artificial shading of diagnostic images due to radiation shielding during radiography for medical treatment in the dental area will be described in more detail with reference to FIGS. 1A to 2.

When the panoramic image is photographed, the ray of the radiation exposes the radiation in the shape of a fan or a cone at the rear part of the patient, passes through tomography and slit-shaped collimator that take images continuously while rotating, And scanography for scanning an image with a scanning electron microscope (SEM).

FIG. 1A is a reference photograph illustrating a panoramic radiographic image photographed in a normal photographing range, and the radiographic image has a photographing range including a cervical vertebra, an eye, a temporal bone, an upper / mandible and a hyoid bone.

1 (b) shows a phantom image (Dental Head Phantom Model 76-606DX, CIRS Co., USA) for image quality evaluation. In this case, a panoramic image photographed in a normal photographing range can be obtained. However, as shown in (b) of FIG. 1B, the image shown in FIG. 1B shows a state in which the thyroid is not shielded from radiation It can be confirmed that the thyroid is not protected from radiation.

2 (A) is a panoramic image photographed in a state in which the radiation shielding protective equipment of the comparative example is worn on the phantom P for image quality evaluation, and FIG. 2 (B) It can be easily confirmed that the artificial shadows seriously deteriorate the diagnostic value of the panoramic image by referring to the front and rear images of the phantom P for image quality evaluation of the radiation shielding protective equipment of the comparative example provided.

WO 2007/149363 (published on December 27, 2007) Korean Registered Patent No. 10-1358290 (Registered October 27, 2014)

The present invention relates to a method for protecting a thyroid, which is a weak organs against radiation, from radiation, minimizing the occurrence of an obstructive image such as an artifact in a radiological image in panoramic radiography, And to provide a radiological image protection device capable of improving a radiographic image quality.

It is still another object of the present invention to provide a radiological shielding device capable of performing additional radiation protection for tissues present in the head such as the brain and eye, as well as radiation protection for the thyroid.

In order to achieve the above object, one aspect of the present invention provides a radiological imaging protective device for protecting a body from radiation emitted from a radiographic apparatus.

According to an aspect of the present invention, there is provided a radiation protection apparatus comprising: A front protecting part for protecting the thyroid gland by shielding the front part of the neck part from the radiation; A rear protecting part provided on the opposite side of the front protecting part to shield the rear part of the neck part from the radiation to protect the thyroid gland; A support wear which is worn on the body and supports the front and rear protection parts such that the front protection part and the rear protection part are disposed at a front part and a rear part of the neck part; And a skin contact inducing part for enhancing contact of the skin with at least one of the front protecting part and the rear protecting part; The side sections between the rear protective portion and the front protective portion are exposed to radiation.

Wherein the skin contact inducing portion comprises: And an elastic band for elastically supporting at least one of the front and rear protection parts so that the front and rear protection parts can be elastically expanded.

The elastic band may connect the front protective portion and the rear protective portion. For example, one end of the elastic band may be connected to the front protective portion, and the other end of the elastic band may be connected to the rear protective portion.

At least one of the front protection portion and the rear protection portion may be detachably connected to the elastic band.

The radiation protection apparatus according to one aspect of the present invention may further include a rear support unit provided on the rear protection unit and supporting the rear protection unit to maintain contact between the front surface of the rear protection unit and the skin have.

Another aspect of the present invention is a method for manufacturing a semiconductor device, A front protecting part for protecting the thyroid gland by shielding the front part of the neck part from the radiation; A rear protecting part provided on the opposite side of the front protecting part to shield the rear part of the neck part from the radiation to protect the thyroid gland; A support wear which is worn on the body and supports the front and rear protection parts such that the front protection part and the rear protection part are disposed at a front part and a rear part of the neck part; And a rear support unit provided on the rear protection unit to support the rear protection unit to maintain contact between the front surface of the rear protection unit and the skin, and a side section between the rear protection unit and the front protection unit Provided is a radiation protection device for exposure to radiation.

The rear support includes: In order to prevent the rear protection part from being bent, the rear protection part is supported.

The rear support includes: And a plate-like structure integrally formed with the rear protection part and maintaining a certain angle with the rear protection part to maintain the posture of the rear protection part.

The rear support includes: The rearward protection portion may be elastically supported forward or may have a material capable of shielding the radiation.

A radiation protection apparatus according to the present invention comprises: And may further include a head protecting unit that can be worn on the head to protect the head from radiation. The head protecting unit may be capable of adjusting the radiation protection range.

The head protecting unit comprising: A head cover for radiation protection which can be worn on the head, and a radiation visor movably provided on the head cover for adjusting a radiation protection range of the head protection unit, the head cover having a laryngeal shielding portion for protecting the back of the head portion, As shown in FIG.

The radiation visor comprising: And is vertically coupled to the head cover so as to adjust the lower protection limit of the head protecting unit.

Wherein the rearward guard portion comprises: 7 and the radial direction of the cervical vertebrae of the cervical vertebrae in the range of 6 cm to the upper side and in the range of 8 cm to the left and right respectively.

More specifically, the rearward guard portion comprises: The left protection limit is a point at which the left outer shaft extends in the left vertical line passing through the left outer shaft in the circumferential direction of the neck portion by 3 cm or more and the right protection limit is a point at the right vertical line passing through the right outer shaft in the vertical direction, And the upper protection limit of the rear protection part is less than or equal to the fourth cervical vertebra, and may be provided at the rear of the front protection part.

The operation of the radiological imaging equipment according to the present invention is as follows.

First, the present invention allows radiation shielding for thyroid protection to come into close contact with the body so that radiation shielding against the thyroid, which is an organ with a high probability of cancer development in radiography, can be effectively realized, It is possible to prevent or minimize the occurrence of a shadow or a faulty image.

Second, according to the present invention, not only the effective protection of the thyroid gland but also the protection of the brain and the eyeball in the head, which is the main organ exposed to the radiation during radiography, , And the rejection and burden of radiography may be reduced.

Third, the radiological shielding device according to the present invention is very useful because it can be applied throughout the whole dental radiography such as intraoral radiation, extra-lateral radiation, head standard radiography, and computed tomography. In other words, the radiological shielding apparatus according to the present invention can positively utilize various radiographic images because it does not cause problems in visualization of the region of interest, cervical vertebrae, and airway, as well as panoramic radiography and outdoor standard radiography.

Fourth, according to the present invention, since the region of radiation shielding in the neck region is less than 180 degrees in the CBCT (cone beam computed tomography), it is possible to minimize the degradation of the image quality and to appropriately protect the thyroid gland Can be obtained.

Fifth, according to the present invention, in addition to panoramic radiography and dental computed tomography, radiographic imaging of the maxillofacial region and the cervical region can be widely used.

Sixth, according to the present invention, it is possible to protect the brain and eyeball region in the head region and to control the radiation shielding range like a shade, so that the radiation shielding region can be effectively set in accordance with the diversity of individual body shape or the purpose of radiography.

Therefore, the present invention becomes an essential radiation protection product at the time of general radiological examination, and it is possible to provide accurate diagnostic images while effectively protecting the patient from the risk of radiation.

BRIEF DESCRIPTION OF THE DRAWINGS The features and advantages of the present invention will become better understood with reference to the following description taken in conjunction with the following detailed description of embodiments of the invention,
1A is a reference photograph illustrating a panoramic radiographic image photographed normally;
1B is a panoramic image photographed with a phantom for image quality evaluation, which is photographed in a state in which a protective shield for shielding radiation is not worn. FIG. 1B shows a phantom image for image quality evaluation, Front and back photographs;
FIG. 2 (a) is a panoramic image photographed in a state in which a radiographic shield for a comparative example is worn on a phantom for image quality evaluation, and FIG. 2 (b) is a panoramic image photographed in a state where a radiation shielding protector Front and back photographs;
FIG. 3 is a front view schematically illustrating a wearing state for protecting the thyroid gland according to an embodiment of the present invention.
FIG. 4 is a rear schematic view of FIG. 3; FIG.
FIG. 5 is a side schematic view of FIG. 3;
FIG. 6 is an exploded view illustrating an embodiment of a radiological imaging apparatus according to the present invention; FIG.
FIG. 7 is a photograph showing a state in which the phantom is worn with a protective device for protecting the thyroid gland to set an extension limit to the upper and the lower sides based on the 7th cervical vertebrae;
FIG. 8 is a side schematic view for explaining a difference of a radiographic image according to a positional change of a rear protective part; FIG.
FIG. 9 is a perspective view of the rear protection part and the rear support of the radiation protection apparatus shown in FIG. 6; FIG.
10 is a sectional view taken along the line II in Fig. 9;
11A to 11E are reference photographs showing the relationship between the radiation protection range and the panoramic image of the backward protective portion with reference to the cervical vertebrae of the seventh cervical vertebra;
FIG. 12 is a front schematic view showing another embodiment of a radiographic apparatus according to the present invention; FIG.
FIG. 13 is a rear schematic view of the radiation protection apparatus shown in FIG. 12; FIG.
Fig. 14 is a side view schematically showing the radiation protection apparatus shown in Fig. 12; Fig. And
FIG. 15 is a side view showing a state in which the radiation visor of the radiation protection apparatus shown in FIG. 14 is raised upward.

Best Mode for Carrying Out the Invention Hereinafter, preferred embodiments of the present invention in which the object of the present invention can be specifically realized will be described with reference to the accompanying drawings. In describing the present embodiment, the same designations and the same reference numerals are used for the same components, and additional description thereof will be omitted in the following.

Prior to the description of the embodiments of the present invention, constituent elements such as the front protection part and the rear protection part for shielding (shielding) radiation from the radiographic protection equipment are materials such as lead (Pb) (Radiation shielding material), and the support wear supporting the front and rear protection parts may also include a radiation shielding material, and the components such as the front protection part and the rear protection part may be made of cloth, leather, It can be covered with synthetic resin or the like.

[Example 1]

First, one embodiment of the radiographic apparatus according to the present invention will be described in detail with reference to FIG. 3 to FIG.

FIG. 3 is a front schematic view for explaining a wearing state for protecting the thyroid gland, FIG. 4 is a schematic rear view of FIG. 3, and FIG. 5 is a cross- Fig. 6 is a developed view of a radiation protection apparatus according to the present invention. Fig.

7 is a reference photograph showing a state in which the phantom is worn with a protection device for protecting the thyroid to set an extension limit for the upper side and the lateral side with reference to the seventh cervical vertebra; FIGS. 9 and 10 are views showing the support structure of the rear protection part. FIG. 9 and FIG. 10 are views showing the support structure of the rear protection part in comparison with the conventional radiation protection equipment.

11A to 11E are reference photographs showing the relationship between the radiation protection range and the panoramic image with reference to the seventh cervical vertebrae.

Referring to FIGS. 3 to 10, a radiation protection device 1 (hereinafter referred to as "protection device") according to the present embodiment shields radiation from the rear part and the front part of the neck part, There is a characteristic feature in that the exposed structure (the structure through which radiation passes), but the radiation protection part protecting the thyroid is brought into intimate contact with the skin.

That is, in this embodiment, in order to protect the thyroid from the radiation incident on the back of the neck portion, the radiation protection material for blocking the back region of the neck portion is brought into intimate contact with the skin, and the secondary thyroid The radiopaque material blocking the front part of the neck can be brought into intimate contact with the skin, thereby minimizing artifacts in the radiographic image, thereby further improving the quality of diagnostic images .

To this end, the protection device 1 according to an embodiment of the present invention includes a front protection part 110 for shielding the front part of the neck part from the radiation, support wear 120 for supporting the front protection part A rear protective portion 130 provided on the support wearer 120 to shield the rear portion of the neck portion from the radiation and at least one of the front protective portion 110 and the rear protective portion 130, And a skin contact inducing part for enhancing contact between the skin and the one.

The rear protection part 130 is provided on the opposite side of the front protection part 110 and the side sections between the front protection part 110 and the rear protection part 130 are exposed to the radiation so that the radiation passes therethrough.

More specifically, the backward protection unit 130 is configured to support the support weir 120 to block radiation in a vertical line L passing through the left and right outer openings in the vertical direction, that is, the left vertical line and the rear vertical line, Respectively. The side sections between the front protective part 110 and the rear protective part 130 may be formed of a hollow area or may be cut off by a radiation-permeable material.

The skin contact inducing portion may have a structure in which the front protecting portion 110 is brought into contact with the front of the neck portion or the rear protecting portion 130 is brought into contact with the back of the neck portion. Elastic band 300 that elastically connects the front and rear protective portions 110 and 130 to contact both the front and rear protective portions 110 and 130 with the neck portion And the elastic band 300 can elastically expand the space between the front protective part 110 and the rear protective part 130.

Accordingly, when the subject wears the protective equipment, the front protective part 110 is brought into close contact with the front skin of the front of the neck, and the rear protective part 130 can be brought into close contact with the skin of the back part of the neck. One of the front protection part 110 and the rear protection part 130 may be detachably connected to the skin contact induction part, that is, the elastic band 300, by a coupling device such as a velcro or a hook or a button .

In the present embodiment, a side section between the front protective portion 110 and the rear protective portion 130 is blocked by the elastic band 300. Of course, the elastic band 300 in this embodiment is a material capable of transmitting radiation. In other words, since the side section between the front protective section 110 and the rear protective section 130 is exposed to the radiation, the elastic band 300 connecting the front protective part 110 and the rear protective part 130 ) Is made of a material through which radiation is transmitted.

One end of the elastic band 300 is connected to the front protection part 110 and the other end of the elastic band 300 is connected to the rear protection part 130. In other words, elastic bands 300 may be provided on the left and right sides of the neck portion, but the present invention is not limited thereto. For example, the front and rear portions of the elastic band having a loop shape may have the front protection portion 110 and the rear protection part 130 may be fixed.

The protection device 1 according to the present embodiment may further include a rear support unit 500 for supporting the rear protection part 130 in addition to the band 300 described above, have. The rear support unit 500 is provided on the support weir 120 to support the rear protection unit 130 so that the contact between the front surface of the rear protection unit 130 and the skin .

The radiation protection device according to the present invention may include at least one of the skin contact induction unit and the rear support unit 500. The present embodiment includes both the skin contact induction unit and the rear support unit 500.

More specifically, the rear support unit 500 may be fixed to the support weir 120 to prevent the rearward protector 130 from being bent. For example, the rear support 500 may be embedded in the support wearer 120, and may be guided or guided by a forward inclination (hereinafter, referred to as 'forward inclination') of the rearward protector 130 So that the rearward protector 130 is in close contact with the skin.

The rear support 500 may include a material capable of shielding radiation. When a structure including the rear protection part 130 and the rear support 500 is referred to as a rear frame, And has a curved shape in accordance with the curvature of the back.

For example, the rear support unit 500 is a plate-like structure, and is integrally formed with the rear protection unit 130 to maintain the posture of the rear protection unit 130 constant. In other words, the rear support 500 is mounted on the upper portion of the back and maintains a certain angle with the rearward guard 130. At this time, the rear protection part 130 may be installed on the upper part of the rear support part 500 or may be fixed on the upper part of the rear support part 500 in an external manner, May be molded.

8, when the rear protective part 130 is brought into close contact with the back of the neck by the skin contact induction part 300 and / or the rear support part 500, the rear protective part 130, The radiation protection range of the rear protection part 130 can be stably maintained and the rear protection part 130 is tilted back so that the shielding range unexpectedly enlarges (b - - > b ') can be prevented.

Referring to FIGS. 9 and 10, one embodiment of the rear support unit 500 may elastically support the rearward protector 130 forward. For example, the rear support 500 includes a base supporter 500a and an upper supporter 500b. The radiation shielding material for forming the rear protection part 130 in the upper supporter 500b may be built in or externally . The upper supporter 500b is supported by the base supporter 500a.

When the upper supporter 500b is rotatably connected to the base supporter 500a and is supported by the elastic member 510, for example, a torsion spring, skin adhesion of the upper supporter 500b can be improved .

For example, the torsion spring 510 is provided on a rotation axis 520 constituting the rotation center of the upper supporter 500b, and one end 511 of the torsion spring is supported by the base supporter 500a When the other end 512 of the torsion spring is supported by the upper supporter 500b, the upper supporter 500b receives the restoring force to the initial position.

More specifically, the upper supporter 500b is connected to the neck and the neck so that the initial angle formed by the upper supporter 500b and the base supporter 500a becomes an obtuse angle greater than a coupling curve, The upper supporter 500b is pressed backward by the neck portion when the subject wears the protection equipment 1 when the subject is connected to the base supporter 500a with an inclination forward than the surface curvature of the region The upper supporter 500b is elastically supported forward, and consequently skin adhesion of the rear protecting part 130 can be enhanced.

Of course, the upper supporter 500b and the base supporter 500a may be connected by a leaf spring. In this embodiment, since the upper supporter 500b itself functions as a radiation shield, And may be referred to as a rearward protection section 130. [ At this time, the upper supporter 500b and the base supporter 500a are structured such that the skeleton can be maintained. The entire upper supporter 500b is made of a radiation shielding material, and the upper supporter itself is made of a rear protection part 130). In the present embodiment, the rear protection part 130 is fixed to the front surface of the upper supporter 500b. However, the present invention is not limited thereto. For example, the rear protection part may be installed in the upper supporter.

More specifically, the base supporters 500a and the upper supporters 500b may be made of a material having shape stability such as metal or plastic, Can be molded into an ergonomic shape to match the curvature of the back and neck of the neck.

In the present embodiment, a structure in which the skin contact induction part such as the elastic band 600 and the rear support part 500 are installed together as a structure for enhancing the skin adhesion of the rear protection part 130 has been described. However, It is needless to say that only one of the elastic band 300 and the rear support 500 can be applied to the protection equipment 1.

4, the rear protective portion 130 of the protection device 1 according to the present embodiment is formed so that the left and right sides of the cervical vertebrae of the seventh cervical vertebrae are within a maximum of 9 cm, And has a shielding range (H) within a maximum distance of 6 cm from the top of the cervical vertebrae of the seventh cervical vertebra in the upward direction.

In other words, the backward protection part 130 is shielded to 8 cm on the left and right sides of the cervical vertebrae of the seventh cervical vertebrae, and shields up to 6 cm on the basis of the cervical vertebrae of the cervical vertebrae 7, Considering that the condition (length or thickness of the neck, etc.) may be different, the shielding range of the back part of the neck, that is, the radiation protection range of the rear barrier 130, may be expressed in different ways.

For example, in setting the left and right shielding ranges of the rearward guard 130, a shielding range (radiation shielding range) is set based on a vertical line L passing through the left and right outer holes vertically in the vertical direction, respectively The region of 2 cm, more preferably 3 cm, in the posterior (circumferential direction of the neck) with respect to the vertical line becomes the maximum left / right shielding limit to the posterior region of the neck portion, and within this range, The left and right shielding ranges shall be set. In other words, the left and right shielding ranges of the cervical posterior region are determined so as not to exceed a region which is 3 cm rearward from the vertical line.

This is because the left end and the right end of the rearward guard 130, which will be described later, are located forward of a point 3 cm rearward, in particular 2 cm, along the circumferential direction of the neck portion with respect to the vertical line L, The degree of occurrence of artificial shading in the panoramic image is intensified, so that this problem is taken into consideration. For example, if the shielding range extends forward beyond the area of 2 cm from the vertical line to the rear, artificial shading occurs excessively at the time of panoramic radiography.

Therefore, it is preferable that the right and left shielding ranges are set for the rear part of the cervical region so as not to shield up to 3 cm behind the vertical line passing through the outer ear by shielding within 8 cm of each of the left and right sides of the cervical vertebrae desirable.

Next, the shielding range (shielding height) can be set based on the fourth cervical vertebrae in the upward shielding range with respect to the back part of the neck part. More specifically, the rear shielding part 130 can be shielded So that an upward shielding range of the neck posterior region can be set. This is because artificial shadow is excessively generated in the panoramic image when the upper part of the cervical vertebra is shielded.

Therefore, the upper part of the cervical 7th cervical vertebra should be shielded in the range of 6cm, so that the upper part of the cervical vertebra is not shielded (it is shielded only up to the height of the cervical vertebra 4 times or less) It is preferable that an upward shielding range is set for the region.

In other words, in the radiological imaging apparatus 1 of the present invention, the rear protective portion 130 is provided at the rear portion of the supporter 120 so as to be shielded within 8 cm of the left and right sides of the cervical vertebrae, Respectively. When the left and right shielding ranges of the rear protective portion 130 are expressed with reference to the outer ear holes, the distance from the vertical line passing through the right outer ear hole to the right end of the rear protective portion is 3 cm or more, The width of the rear protection part may be determined so that the distance from the rear protection part to the left end of the rear protection part is 3 cm or more.

Next, the height of the rear protective portion 130 may be configured to be shielded within 6 cm of the upper portion of the cervical vertebrae of the seventh cervical vertebra. In other words, the height of the rear protective portion may be set to be not more than four cervical spine.

In the present embodiment, the support wearer 120 connects the front protection part 110 and the rear protection part 130 and wears the human body to support the front protection part 110 and the rear protection part 130 And is configured to cover the shoulder of the examinee.

In the meantime, according to the present embodiment, the frontal protection part 110 is configured to have a desired shape and size according to the body condition, for example, the frontal protection part 110 has a width of 7 cm or less, The width and height of the thyroid gland may be the minimum width and height of the frontal protection part 110. In this case,

The support wearer 120 may be extended downward from the neck portion to shield the lungs and mediastinum to perform radiation protection. The support wearer 120 may be attached to the front surface of the support wearer 120 A detachable configuration such as a velcro 121 or a snap button (a knot button) can be applied.

The operation of the radiation protection apparatus 1 according to the present embodiment configured as described above is as follows.

The protection device 1 according to the present embodiment adversely affects the panoramic image by closely adhering the front protection part 110 and the rear protection part 130 to the skin while effectively protecting the thyroid from radiation during panoramic imaging Minimize artificial shadows.

The protection equipment 1 according to the present embodiment is widely used not only for panoramic photography but also for dental computed tomographic imaging and other radiographic imaging of the maxillofacial region and the neck region, Diagnostic images can be provided.

Hereinafter, a process of deriving the shielding range for the thyroid of the radiographic apparatus 1 according to the present embodiment will be described.

First, in panoramic radiography, the radiation is directly irradiated to the skin. Since it is located close to the skin in the posterior part of the patient, it can be easily seen from the spinous process of the cervical vertebra (7) The upper limits of the thyroid gland were set at 6 cm, 7 cm, 8 cm, and 9 cm from the gyro to determine the extension limits.

In order to set the extension limits (left limit and right limit) of the thyroid gland, in particular the rearward guard 130, the center of the external auditory meatus, that is, the vertical line (L) (9cm, 8cm, 7cm, 6cm, respectively, from the spinous process) were determined from the 1cm, 2cm, 3cm, and 4cm posteriorly.

That is, the relationship between the upper and lateral extension ranges of the radiological shielding device 1 for protecting the thyroid gland and the panoramic image and the panoramic image were defined as Phantom (P, Dental Head Phantom Model 76-606DX, CIRS The upper limit (upper limit) and the lateral extension limit (left and right limit) of the cervical vertebrae of the 7th cervical vertebra were set.

Hereinafter, the relationship between the upper and the lateral extension of the radiological protection device 1 for thyroid protection and the relationship between the panoramic image and the radiological protection device for protecting the thyroid gland will be described. The relationship between the amount of radiation on the surface of the skin will be examined.

1. Relationship between upper and lateral extension of radiological protection equipment for the protection of the thyroid gland and panoramic imaging

[Experimental Example 1]

11A, the extension range of the phantom P to the upper side is set to 9 cm and the extension range to the side is set to the outer phantom (the vertical line L) on the right side of the phantom P, (Ie, 9 cm from the cervical vertebra of the 7th cervical vertebra) and 1 cm forward (1 cm above the external auditory canal) (ie, 11 cm from the cervical vertebra of the 7th cervical vertebra) 9A.

On the left side of the panoramic image, a real image due to the shielding of the radiation protection equipment for the protection of the thyroid was observed, and the virtual image due to it was observed on the right side of the image, and it was confirmed that the diagnostic image was adversely affected.

[Experimental Example 2]

11B, the upward extension limit of the phantom P is 8 cm and the lateral extension limit of the phantom P is 2 cm (ie, 7 times) from the left and right sides of the phantom P 8 cm from the cervical vertebra), and the degree of shading of the panoramic image was as shown in FIG. 11B.

[Experimental Example 3]

Referring to FIG. 11C, the upward extension limit of the phantom P is set to 7 cm on the basis of the position of the cervical vertebra of the seventh cervical vertebra, and the lateral extension limit is set to 3 cm 7 cm from the cervical vertebra of the cervical vertebra), and the degree of shading of the panoramic image was as shown in FIG. 11C.

[Experimental Example 4]

11D, the upward extension limit of the phantom P is set to 6 cm on the basis of the position of the cervical vertebrae of the seventh cervical vertebra and the lateral extension limit is set to 2 cm behind the external ear And 8 cm from the cervical spine of the cervical vertebra), the degree of shading of the panoramic image was as shown in FIG. 11D.

[Experimental Example 5]

11E, the upward extension limit of the phantom P is 6 cm and the lateral extension limit of the phantom P is 3 cm (ie, 7 times) from the left and right sides of the phantom P 7 cm from the cervical spine of the cervical vertebra), and the degree of shading of the panoramic image was as shown in FIG.

Based on the above results, the appearance of artificial shadows in the panoramic radiographic images according to the shape of the thyroid gland is as follows.

When the height of the cervical vertebrae of the cervical vertebrae was increased by 6cm, the artificial shadow was formed at the lower incisor of the mandibular anterior part of the mandibular anterior part, but the artificial shadow was not observed in the images of the mandibular anterior teeth and alveolar bone. And artificial shadow was formed in apical region.

In addition, when the lateral extension limit of the thyroid gland was set to 1 cm behind the external ear (9 cm from the 7th cervical vertebra), artificial shadows were observed with the virtual image, and 2 cm, Especially, when the lateral boundary of the thyroid gland was set to 3cm (8cm, 7cm from the 7th cervical vertebra), artificial shadows were not observed.

2. Radiation dose of skin surface of thyroid area according to the type of protective equipment for thyroid protection

Preliminary experiments were conducted to investigate the amount of radiation on the surface of the thyroid gland according to the type of protective equipment for thyroid protection. As shown in Table 1 below, when the radiation protection equipment for thyroid protection was not applied, the exposure dose of the thyroid surface was 87.4mR. Based on the 7th cervical vertebrae, it was protected up to 6cm, Thoracic surface exposure dose was 80.7mR when protected up to 3cm in the posterior direction and 73.9mR in the thyroid surface when it was protected up to 7cm in the upper part and 2cm behind in the outer ear.

Surface exposure of the thyroid gland according to the type of radiation protection equipment for thyroid protection Radiation protection range
Upward extension from cervical vertebra No. 7 6cm 7cm 3cm behind the outer ear 80.7mR 73.9mR 2 cm behind the ear 76.4mR 73.3mR

As shown in Table 2 below, the reduction effect of the surface dose of thyroid according to the shape of the radiation protection equipment for protecting the thyroid gland is protected to 6 cm from the upper part of the 7th cervical vertebrae, , And 7.7% in the case of the protection against the thyroid gland, and 16.1% in the case of the protection up to 7cm in the vertical direction as well as in the case of protecting the backward position 2cm from the external ganglion.

Radiation protection range
Upward extension from cervical vertebra No. 7 6cm 7cm 3cm behind the outer ear 7.7% 15.4% 2 cm behind the ear 12.6% 16.1%

The abatement effect is expressed as the abatement effect = (AB) / A * 100 where A is the exposure dose without the radiation protection equipment for thyroid protection and B is the radiation protection equipment for the thyroid protection The amount of exposure depends on the type.

Based on the above results, in the radiological protection apparatus for protecting the thyroid which can be used in the panoramic photographing, the extension limit of the rear protection part 130 installed for shielding the radiation in the posterior part of the patient's neck is the extension of the seventh cervical spine As a result, it can be seen that the radiation protection effect on the thyroid is the best and the occurrence of the artificial shadow which adversely affects the panoramic image is minimized when the shape is protected to 6 cm above and 8 cm to the side.

In addition, in the anterior part of the human body, the frontal protection part 110 serving as a shielding film is positioned on the thyroid cartilage (under the thyroid cartilage), which is the outer side of the skin where the thyroid is present, ) And direct radiation to protect the thyroid gland.

As described above, the protective equipment according to the present embodiment shields radiation up to 6 cm above and 8 cm from the rear of the cervix at the time of taking a panoramic image with respect to the cervical vertebrae of the seventh cervical vertebrae, (The lower part of the thyroid cartilage), which is outside of the existing skin, and has more improved skin adhesion to the front and rear protective parts than to the radiation protection part. In addition, the thyroid protection and artificial shading are minimized It is more effective.

[Example 2]

Hereinafter, another embodiment (second embodiment) of the radiographic apparatus according to the present invention will be described with reference to Figs. 12 to 15. Fig.

12 to 15, the radiation protection apparatus according to the present embodiment includes a thyroid protection unit and a head protection unit, and the thyroid protection unit is the same as the first embodiment Lt; / RTI >

That is, the protection equipment according to the present embodiment further includes the head protection unit 700 in addition to the protection equipment 1 described in the above embodiment, that is, the thyroid protection unit. The head protecting unit 700 can be worn on the head or head so as to protect tissues such as the brain and eyeball from radiation more specifically than the tissue present in the head, This is possible.

Therefore, the present embodiment allows the thyroid to be protected, while allowing radiation protection to parts of the brain included in the radiation irradiation range, for example, the brain and the eyeball, without being subject to image reading at the time of radiography.

The head protecting unit 700 is configured to cover at least a part of the head and includes a laryngeal shielding portion for radiating the back of the head portion. For example, the laryngeal shield may protect at least a portion of the parietal lobe and may be sized to further protect the occipital lobe and / or temporal lobe.

The head protecting unit 700 according to the present embodiment is a structure capable of adjusting the radiation protection range and includes a head cover 710 having a structure such as a hat structure having a head shielding portion and wearing the head as described above, And a radiation visor 720 which is movably provided on the ceiling 710 to adjust a radiation protection range of the ceiling protection unit 700. [

The head cover 710 is exposed to the upper side of the frontal lobe and the left and right sides of the frontal lobe and is worn on the subject's head by the headband 900, It may cover the front and back of the scalp as a whole to the extent that it does not disturb the image,

In the present embodiment, the radiation visor 720 is rotatably coupled to the head cover 710 so as to be vertically rotatable, and the radiation visor 720 is disposed on the lower side of the head protecting unit 700 Adjust the protection limit. That is, the area between the lower protection limit of the head cover 710 and the upper protection limit of the rear protection part 130 can be additionally blocked.

In this embodiment, the radiation visor 720 is hinged to both sides of the head cover 710 to provide additional radiation protection in addition to radiation protection of the head cover 710, (Not shown). The headband 900 may be a band having elasticity. The radiation visor 720 can protect the occipital lobe, the temporal lobe, and the eyeball from radiation incident from behind the head.

The rear support 500 may further include a shoulder rest 500c for reinforcing the position of the rear support 500. As shown in FIG. The shoulder rest part 500c is a curved type that extends downward from the base supporter 500a to the chest by the base supporter 500a so as to be placed on both shoulders and strengthens the supporting force against the rear guard part 130. [

As described above, according to the present embodiment, it is possible to protect the thyroid gland efficiently at the time of radiography, and also to protect the brain and the eyeball region in the head region, so that the safety of the patient can be further enhanced can do.

Particularly, since the head protecting unit 700 according to the present embodiment can increase or decrease the radiation shielding range in the back of the head, it is possible to prevent the head from being damaged, It is possible to protect the tissues within the body.

For example, when diagnosing a panoramic radiography, when the radiation source is assumed to emit radiation upward from the X-ray tube at an angle of, for example, about 5 degrees, upward from the X-ray tube, 700 may perform brain protection by the head cover, i.e., the occipital shield, and eye protection by the radiation visor 720.

It will be apparent to those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or scope of the invention as defined in the appended claims. . Therefore, the above-described embodiments are to be considered as illustrative rather than restrictive, and thus the present invention is not limited to the above description, but may be modified within the scope of the appended claims and equivalents thereof.

P: Phantom 1: Protection equipment
110: Front protection part 120: Support software
130: rear protection part 300: band
500: Rear support base 500a: Base supporter
500b: upper supporter 700: head protection unit
710: head cover 720: radiation visor
900: Headband

Claims (16)

1. A radiation protection device for protecting a body from radiation emitted from a radiation imaging apparatus, comprising:
A front protecting part for protecting the thyroid gland by shielding the front part of the neck part from the radiation;
A rear protecting part provided on the opposite side of the front protecting part to shield the rear part of the neck part from the radiation to protect the thyroid gland;
A support wear which is worn on the body and supports the front and rear protection parts such that the front protection part and the rear protection part are disposed at a front part and a rear part of the neck part; And
And a skin contact inducing part for enhancing adhesion of the skin to at least one of the front protecting part and the rear protecting part;
And a side section between the rear protective section and the front protective section is exposed to radiation. The method according to claim 1,
Wherein the skin contact inducing portion comprises:
And an elastic band for elastically supporting at least one of the front and rear protection parts so as to be elastically expandable between the front and rear protection parts. 3. The method of claim 2,
Wherein one end of the elastic band is connected to the front protection part and the other end of the elastic band is connected to the rear protection part. The method according to claim 2 or 3,
Wherein at least one of the front protection portion and the rear protection portion is detachably connected to the elastic band. 3. The method of claim 2,
Further comprising: a rear support member provided on the rear protection portion and supporting the rear protection portion to maintain contact between the front surface of the rear protection portion and the skin. 1. A radiation protection device for protecting a body from radiation emitted from a radiation imaging apparatus, comprising:
A front protecting part for protecting the thyroid gland by shielding the front part of the neck part from the radiation;
A rear protecting part provided on the opposite side of the front protecting part to shield the rear part of the neck part from the radiation to protect the thyroid gland;
A support wear which is worn on the body and supports the front and rear protection parts such that the front protection part and the rear protection part are disposed at a front part and a rear part of the neck part; And
And a rear support which is provided on the rear protection part and supports the rear protection part to maintain contact between the front surface of the rear protection part and the skin;
And a side section between the rear protective section and the front protective section is exposed to radiation. The method according to claim 5 or 6,
The rear support includes:
Characterized in that the rear protection part is supported to prevent the rear protection part from being tilted. 8. The method of claim 7,
The rear support includes:
And a plate-like structure integrally formed with the rear protection part and maintaining a certain angle with the rear protection part to maintain the posture of the rear protection part. The method according to claim 5 or 6,
The rear support includes:
And the backward protection portion is elastically supported forward. The method according to claim 5 or 6,
The rear support includes: Characterized in that radiation shielding is possible. 7. The method according to claim 1 or 6,
Further comprising a head protecting unit that can be worn on the head to protect the head from radiation. 12. The method of claim 11,
Wherein the head protecting unit is capable of adjusting the radiation protection range. 13. The method of claim 12,
The head protecting unit comprising:
A head cover having a laryngeal shielding portion for protecting the rear portion of the head portion, the head cover being capable of being worn on the head portion,
And a radiation visor movably provided on the head cover for adjusting a radiation protection range of the head protecting unit. 14. The method of claim 13,
The radiation visor comprising: Wherein the head cover is rotatably coupled to the head cover so as to adjust the lower protective limit of the head protecting unit. 7. The method according to claim 1 or 6,
Wherein the rearward guard portion comprises:
Wherein the radiation shielding unit is provided so as to face the rear of the front shield so as to radiate within a range of 6 cm to the upper side and a range of 8 cm to the left and right with respect to the radial base of the cervical vertebrae. 7. The method according to claim 1 or 6,
Wherein the rearward guard portion comprises:
The left protection limit is a point at which the left outer shaft extends in the left vertical line passing through the left outer shaft in the circumferential direction of the neck portion by 3 cm or more and the right protection limit is a point at the right vertical line passing through the right outer shaft in the vertical direction, And the upper protection limit of the rear protection portion is less than the fourth cervical vertebra and is provided so as to face rearward of the front shield portion.

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