KR102596652B1 - Brassiere for shielding scattered rays using radiation shielding effect in radiation treatment - Google Patents

Abstract

A scattered radiation shielding bra applying the principle of radiation shielding for radiation therapy is disclosed. The scattered radiation shielding bra to which the principle of radiation shielding for radiation therapy of the present invention is applied includes a wearing member that surrounds the patient's chest circumference and covers both breasts; A first shield attached to the surface of the wearing member and covering both breast areas; and a second shield attached to the surface of the first shield and covering both breast areas, one of the first shield and the second shield comprising a material having a relatively high atomic number, and the first shield and the second shield. Another of the shielding bodies is characterized by containing a material with a relatively low atomic number.

Description

Scattered radiation shielding bra applied with the principle of radiation shielding for radiation therapy {BRASSIERE FOR SHIELDING SCATTERED RAYS USING RADIATION SHIELDING EFFECT IN RADIATION TREATMENT}

The present invention relates to a scattered radiation shielding bra to which the principle of radiation shielding for radiation therapy is applied. More specifically, it protects the breast by shielding scattered radiation generated by primary high-energy radiation during radiation treatment in the area around the breast. and a scattering radiation shielding bra to which the principle of radiation shielding for radiation therapy is applied to prevent visual exposure of the breast.

Early diagnosis of tumors is possible through health checkups, and the number of patients receiving surgery, chemotherapy, and radiation therapy in parallel is increasing. Due to the increase in radiation therapy targets and the development of radiation therapy equipment, a significant number of cancer patients are receiving radiation therapy. Radiation therapy should increase the treatment effect by irradiating the minimum amount of radiation to normal tissue and focusing as high an energy dose as possible on the tumor.

An important point to consider when using high-energy radiation in radiation therapy is the amount of surface dose exposed to the patient along with the prescribed dose to the tumor. In radiation therapy, even a low dose of radiation can cause stochastic radiation damage and shorten lifespan, so in order to justify radiation, radiation exposure to areas other than the treatment must be reduced as much as possible.

The causes of scattered rays generated from medical linear accelerators include aperture, filter, air, and subject. Radiation irradiated from a radiation source reaches the patient after being scattered by surrounding substances. Even if the surrounding radiation dose excluding the irradiated area is small compared to the irradiated area dose, it causes an increase in the stochastic effect on the patient.

In other words, scattered rays generated during radiation treatment can cause secondary radiation exposure to organs and tissues other than the treatment target area. Most of the shielding devices currently used to reduce radiation exposure are used for radiation protection purposes for hospital workers. And radiation protection for patients is inadequate.

In this regard, Republic of Korea Patent Publication No. 1967664 (hereinafter referred to as 'prior document') discloses protective equipment for medical imaging. Protective equipment for medical imaging in prior literature includes a shielding means containing a contrast material, and a gap maintenance member attached to the bottom of the shield to space the shielding means from a body part at a predetermined distance, and the thickness of the gap maintenance member is 10 to 40 mm. It is characterized by being formed by.

Protective equipment for medical imaging in prior literature uses shielding means containing a contrast material capable of shielding radiation to protect a woman's breast or thyroid gland during medical imaging examinations such as computed tomography (CT) examination, general imaging examination, or fluoroscopy examination. There is an advantage that specific body parts of patients with high radiation sensitivity, such as the lens and gonads, can be effectively protected.

The shielding means is manufactured to be deformable to suit the curvature of the body and can be deformed into various shapes. Additionally, an adhesive means such as an adhesive tape is provided on the bottom of the gap maintenance member and is fixed to the skin. However, the elastic recovery of elastic materials increases as the amount of deformation increases. And the adhesiveness of adhesive tape has certain limits. Therefore, when the shielding means is modified to fit a protruding part such as a woman's breast, there is a problem that the glued part easily falls off due to the elastic recovery of the material.

There are various types of radiation used in radiation therapy, including high-energy photon beams, electron beams, proton beams, and baryon beams. And the properties of scattered rays vary depending on the type of radiation. Therefore, different shielding materials must be used depending on the type of radiation to effectively shield scattered rays.

Bremsstrahlung radiation is electromagnetic radiation produced by the deceleration of a charged particle, such as an electron, when it is deflected by another charged particle, such as an atomic nucleus. This is because when beta rays are attracted to the nucleus and the acceleration changes, photons equal to the energy difference are emitted.

Beta rays (β-) are attracted to the charge of the atomic nucleus (+) due to the (-1) charge. In other words, the direction of movement of the beta ray is bent toward the atomic nucleus, and the kinetic energy decreases. As a result, bremsstrahlung radiation is emitted equal to the energy difference.

As a shielding material for high-energy radiation, lead (82Pb), tungsten (74W), bismuth (83Bi), barium (56Ba), cadmium (48Cd), tin (50Sn), bismuth alloy (bismuth, cadmium, tin, lead, indium) Likewise, if a material with a large atomic number is used, the degree of bending of the beta ray increases, increasing the probability of generating bremsstrahlung radiation. However, protective equipment for medical imaging in prior literature had the problem of not being able to prevent exposure to bremsstrahlung radiation when materials with high atomic numbers were used as shields for high-energy radiation.

Conversely, in the case of low-energy radiation, scattered rays can be effectively shielded by using shielding materials with low atomic numbers such as beryllium (4Be), aluminum (13Al), copper (29Cu), zinc (30Zn), water, paraffin, and polyethylene. This is because beta rays emit more braking radiation when they interact with substances with higher atomic numbers.

Therefore, beta rays must be shielded with materials with a low atomic number to reduce the conversion rate to bremsstrahlung X-rays. However, the protective equipment for medical imaging in the prior literature had the problem of not being able to completely prevent radiation exposure from small amounts of braking X-rays, even though materials with low atomic numbers were used as shields for low-energy radiation.

Republic of Korea Patent Publication No. 1967664 (Registration date: 2019.04.04)

The purpose of the present invention is to firmly maintain the shielding shape of the woman's breast during radiation treatment of areas close to the breast, such as the liver, pancreas, spleen, kidneys, lumbar spine, cervical spine, head and neck, etc., while also maintaining the shape of the woman's breast upon completion of radiation treatment. The aim is to provide a scattered radiation shielding bra that applies the principle of radiation shielding for radiation therapy, which allows the breasts to be easily released from the shielding state.

In addition, a scattered radiation shielding bra applies the principle of radiation shielding for radiation therapy, which almost completely blocks exposure to the breast area by bremsstrahlung radiation and bremsstrahlung X-rays from high-energy radiation and low-energy radiation during radiation treatment of areas close to the breast. is to provide.

The above object is, according to the present invention, a wearing member that surrounds the patient's chest and covers both breasts; a first shielding body detachably attached to the surface of the wearing member and covering both breast areas; and a second shielding body detachably attached to the surface of the first shielding body and covering both breast areas, wherein one of the first shielding body and the second shielding body includes a material having a relatively high atomic number, This is achieved by a scattered radiation shielding bra to which the principle of radiation shielding for radiation therapy is applied, wherein the other one of the first shielding body and the second shielding body contains a material with a relatively low atomic number.

The first shielding body includes: a 1A shielding body covering one breast area; and a 1B shield covering the other breast area, wherein at least one of the 1A shield and the 1B shield may cover the area between both breasts.

The first shield body 1A and shield body 1B may be configured to extend toward the patient's side.

The first shielding body 1A and the first shielding body 1B may be detachably attached to the surface of the wearing member using first attachment Velcro.

The second shielding body includes: a 2A shielding body covering one breast area; and a 2B shield covering the other breast area, wherein at least one of the 2A shield and the 2B shield may cover the area between both breasts.

The 2A shielding body and the 2B shielding body may be configured to extend toward the patient's side.

The 2A shield and the 2B shield can be detachably attached to the surface of the first shield using a second attachment Velcro.

The wearing member includes a back portion covering the patient's back area; A first front part covering one breast area and connected to the back part; and a second front part that covers the other breast area and is connected to the back part, wherein the first front part and the second front part are detachably coupled between both breasts by a coupling member, and the first shield is It may be made to cover the coupling member.

The coupling member may be provided with a zipper or Velcro.

It includes a shoulder band, one end of which is coupled to the wearing member at the lower part of the patient's breast, and the other end of which is detachably coupled to the back, and when the position at which the other end of the shoulder band is coupled to the back is adjusted, the breast The location can be changed.

The wearing member and the shoulder band may be made of an air equivalent material woven into a mesh shape.

A first Velcro is provided on the back, a second Velcro is detachably coupled to the first Velcro at the other end of the shoulder band, and a third Velcro is detachably coupled to the second Velcro at the other end of the shoulder band. It can be made to be provided.

A fourth Velcro is provided on one side of the other end of the shoulder band with respect to the second Velcro, and a fifth Velcro is detachably coupled to the fourth Velcro on the other end of the shoulder band with respect to the second Velcro. is provided, and the state in which the other end of the shoulder band is rolled along the longitudinal direction can be selectively maintained by detachable coupling of the fourth Velcro and the fifth Velcro.

According to the present invention, the first shield is detachably attached to the surface of the wearing member covering both breasts, and the second shield is detachably attached to the surface of the first shield, so that the liver, pancreas, spleen, kidney, lumbar spine, During radiation treatment of areas close to the breast, such as the cervical spine, head and neck, etc., the shielding of the woman's breast is maintained firmly, and the shielding of the woman's breast can be easily released upon completion of radiation treatment. It is possible to provide a scattered radiation shielding bra that applies the principle of radiation shielding.

In addition, one of the first shielding body and the second shielding body contains a material with a relatively high atomic number, and the other one of the first shielding body and the second shielding body contains a material having a relatively low atomic number, so that it is close to the breast. It is possible to provide a scattered radiation shielding bra that applies the principle of radiation shielding for radiation therapy, which almost completely blocks exposure to the breast area by bremsstrahlung radiation and bremsstrahlung X-rays of high-energy radiation and low-energy radiation during local radiation therapy. .

Figure 1 is a front view of a scattered radiation shielding bra to which the principle of radiation shielding for radiation therapy is applied according to an embodiment of the present invention.
Figure 2 is a rear view of a scattered radiation shielding bra to which the principle of radiation shielding for radiation therapy of Figure 1 is applied.
Figure 3 is a side view of a scattered radiation shielding bra to which the principle of radiation shielding for radiation therapy of Figure 1 is applied.
Figure 4 is a front view showing a state in which the first shield and the second shield are removed from the wearing member of the scattered radiation shielding bra to which the principle of radiation shielding for radiation therapy of Figure 1 is applied.
Figure 5 is a side view of a scattered radiation shielding bra to which the principle of radiation shielding for radiation therapy of Figure 4 is applied.
Figure 6a is a perspective view showing the other end of the shoulder band of the scattered radiation shielding bra to which the principle of radiation shielding for radiation therapy of Figure 2 is applied in an unfolded state.
Figure 6b is a perspective view showing a state in which the other end of the shoulder band of the scattered radiation shielding bra to which the principle of radiation shielding for radiation therapy of Figure 2 is applied is detachably coupled to the back.
Figure 6c is a perspective view showing the other end of the shoulder band of the scattered radiation shielding bra to which the principle of radiation shielding for radiation therapy of Figure 5 is applied is rolled along the longitudinal direction.
Figure 7 is a front view showing a state in which the first shield is attached to the wearing member of the scattered radiation shielding bra to which the principle of radiation shielding for radiation therapy of Figure 4 is applied.
Figure 8 is a side view of a scattered radiation shielding bra to which the principle of radiation shielding for radiation therapy of Figure 7 is applied.
Figure 9 is a front view showing a state in which a second shielding body is attached to the first shielding body of the scattered radiation shielding bra to which the principle of radiation shielding for radiation therapy of Figure 7 is applied.
Figure 10 is a diagram showing a radiation treatment device and a couch.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. However, in describing the present invention, descriptions of already known functions or configurations will be omitted to make the gist of the present invention clear.

The scattered radiation shielding bra to which the principle of radiation shielding for radiation therapy of the present invention is applied is a form that shields a woman's breast during radiation treatment of areas close to the breast, such as the liver, pancreas, spleen, kidney, lumbar spine, cervical spine, and head and neck. This is done so that the shielding of the woman's breast can be easily released upon completion of radiation treatment while maintaining it firmly.

In addition, the scattered radiation shielding bra to which the principle of radiation shielding for radiation therapy of the present invention is applied reduces radiation exposure to the breast area due to bremsstrahlung radiation and bremsstrahlung X-rays from high-energy radiation and low-energy radiation during radiation treatment of areas close to the breast. This is done to completely block it.

Figure 1 is a front view of a scattered radiation shielding bra 10 to which the principle of radiation shielding for radiation therapy is applied according to an embodiment of the present invention. Figure 2 is a rear view of the scattered radiation shielding bra 10 to which the principle of radiation shielding for radiation therapy of Figure 1 is applied. Figure 3 is a side view of the scattered radiation shielding bra 10 to which the principle of radiation shielding for radiation therapy of Figure 1 is applied.

Figure 4 is a front view showing a state in which the first shield 200 and the second shield 300 are removed from the wearing member 100 of the scattered radiation shielding bra 10 to which the principle of radiation shielding for radiation therapy of Figure 1 is applied. am. Figure 5 is a side view of the scattered radiation shielding bra 10 to which the principle of radiation shielding for radiation therapy of Figure 4 is applied.

FIG. 6A is a perspective view showing the other end of the shoulder band 400 of the scattered radiation shielding bra 10 to which the principle of radiation shielding for radiation therapy of FIG. 2 is applied in an unfolded state. Figure 6b is a perspective view showing the other end of the shoulder band 400 of the scattered radiation shielding bra 10 to which the principle of radiation shielding for radiation therapy of Figure 2 is applied is detachably coupled to the back portion 110. Figure 6c is a perspective view showing the other end of the shoulder band 400 of the scattered radiation shielding bra 10 to which the principle of radiation shielding for radiation therapy of Figure 5 is applied is rolled along the longitudinal direction.

FIG. 7 is a front view showing the first shield 200 attached to the wearing member 100 of the scattered radiation shielding bra 10 to which the principle of radiation shielding for radiation therapy of FIG. 4 is applied. Figure 8 is a side view of the scattered radiation shielding bra 10 to which the principle of radiation shielding for radiation therapy of Figure 7 is applied.

FIG. 9 is a front view showing a state in which the second shielding body 300 is attached to the first shielding body 200 of the scattered radiation shielding bra 10 to which the principle of radiation shielding for radiation therapy of FIG. 7 is applied. Figure 10 is a diagram showing the radiation treatment device 3 and the couch 2.

As shown in Figure 10, during radiation treatment of the breast area, the patient (not shown) lies down on the couch 2, and radiation generated from the radiation treatment device 3 is irradiated to the lesion area of the breast.

As shown in Figures 1 to 3, the scattered radiation shielding bra 10 to which the principle of radiation shielding for radiation therapy according to an embodiment of the present invention is applied is used to scatter radiation on the patient's breast during radiation treatment in the area around the breast. It is made to shield from lines and prevent visual exposure of the breast, and includes a wearing member 100, a first shield 200, a second shield 300, and a shoulder band 400.

As shown in Figures 4 and 5, the wearing member 100 forms a shape that surrounds the patient's chest and covers both breasts. The wearing member 100 may be roughly shaped like a sports bra.

The wearing member 100 includes a back portion 110, a front portion 120, a coupling member 130, and a shoulder portion 140. The back portion 110, front portion 120, coupling member 130, and shoulder portion 140 may form an integrated clothing shape.

The back portion 110, front portion 120, and shoulder portion 140 may be made of air equivalent material. Air equivalent materials refer to materials that have the same effective atomic number as air and exhibit the same ionization to radiation. Air equivalent materials include graphite, paper, and certain plastics.

The back part 110 is a part that covers the patient's back. The back portion 110 can elastically expand and contract while the patient wears the wearing member 100 and can come into close contact with the patient's back region.

Light portion 110 may be made of air equivalent material. As an example, the back portion 110 may be made of woven carbon fiber. If the light portion 110 is made of carbon fiber, it may have little effect on scattered rays since it exhibits the same ionization of radiation as air.

As shown in FIG. 4, the front part 120 is a part that covers the patient's breast and includes a first front part 121 and a second front part 122.

The first front part 121 is a part that covers one breast area of the patient. The second front part 122 is a part that covers the patient's other breast area. The first front part 121 and the second front part 122 are in close contact with the breast by the overall elastic recovery force of the wearing member 100.

The first front part 121 is connected to the back part 110 at one side of the patient. The second front part 122 is connected to the back part 110 at the other side of the patient.

The first front part 121 and the second front part 122 are coupled by a coupling member 130 between both breasts. That is, the coupling member 130 connects the first front part 121 and the second front part 122 between the first front part 121 and the second front part 122.

The coupling member 130 may be provided with a zipper or Velcro. Figure 4 shows an embodiment in which the coupling member 130 is provided as a zipper.

After wearing the sports bra-shaped wearing member 100, the patient can connect the first front portion 121 and the second front portion 122 through the coupling member 130. When the first front part 121 and the second front part 122 are connected through the coupling member 130, the front part 120 can elastically expand and contract and come into close contact with the patient's breast area.

The first front part 121 and the second front part 122 may form a symmetrical structure with respect to the coupling member 130. The first front part 121 and the second front part 122 may have the same structure except that they are symmetrical. Hereinafter, the front part 120 should be understood to mean the first front part 121 and the second front part 122.

The front portion 120 may be made of air equivalent material. As an example, the front portion 120 may be made of woven carbon fiber. If the front portion 120 is made of carbon fiber, it may have little effect on scattered radiation because it exhibits the same ionization as air with respect to radiation.

As shown in FIGS. 2 and 3, the shoulder portion 140 extends beyond the patient's shoulder and connects the front portion 120 and the back portion 110. The shoulder portion 140 includes a first shoulder portion 141 and a second shoulder portion 142.

As shown in FIGS. 2 and 4 , one end of the first shoulder portion 141 may be connected to the upper part of the first front portion 121 and the other end may be connected to the back portion 110 . Additionally, one end of the second shoulder portion 142 may be connected to the upper part of the second front portion 122 and the other end may be connected to the back portion 110 .

The shoulder portion 140, front portion 120, and back portion 110 may be manufactured as one piece. Alternatively, the shoulder portion 140, front portion 120, and back portion 110 may be sewn, glued, or heat-sealed to each other.

Shoulder portion 140 may be made of air equivalent material. As an example, shoulder portion 140 may be made of woven carbon fiber. If the shoulder portion 140 is made of carbon fiber, it may have little effect on scattered radiation because it exhibits the same ionization of radiation as air.

As shown in Figures 7 and 8, the first shield 200 is configured to cover both breast areas between the breast and the second shield 300. The first shield 200 is detachably attached to the surface of the wearing member 100. The first shield 200 includes a 1A shield 210 and a 1B shield 220.

The first A shielding body 210 is configured to cover one of the patient's both breasts. The 1A shielding body 210 is detachably attached to the surface of the first front part 121.

The 1B shielding body 220 is configured to cover the other breast area among both breasts of the patient. The 1B shielding body 220 is detachably attached to the surface of the second front part 122.

At least one of the 1A shielding body 210 and the 1B shielding body 220 covers the area between both breasts. Accordingly, at least one of the 1A shielding body 210 and the 1B shielding body 220 covers the coupling member 130. Figure 7 shows an embodiment in which the 1B shielding body 220 covers the area between both breasts. The 1A shielding body 210 and the 1B shielding body 220 extend toward the patient's side.

Therefore, during radiation treatment of areas close to the breast, such as the liver, pancreas, spleen, kidneys, lumbar spine, cervical spine, head and neck, etc., if the scattered radiation is to reach the breast area from the front and sides of the patient's chest, the scattered radiation must be sent to the second shielding body (300 ) and then pass through the first shield 200.

As shown in FIGS. 4, 5, 7, and 8, the 1A shield 210 and the 1B shield 220 are attached to the surface of the wearing member 100 by the first attachment Velcro (V1A, V1B). It is attached detachably.

The 1A shielding body 210 is detachably attached to the surface of the first front portion 121 using first attachment Velcro (V1A, V1B). The 1B shielding body 220 is detachably attached to the surface of the second front part 122 by the first attachment Velcro (V1A, V1B).

The first attachment Velcro (V1A, V1B) includes a 1A attachment Velcro (V1A) and a 1B attachment Velcro (V1B). The 1A attachment Velcro (V1A) and the 1B attachment Velcro (V1B) are detachably coupled to each other.

The 1A attachment Velcro (V1A) is provided on the back of the 1A shield 210 and the 1B shield 220, respectively. The 1A attachment Velcro (V1A) is provided in plural numbers and is provided along the rear edge of the 1A shielding body 210. In addition, the 1A attachment Velcro (V1A) is provided in plurality and is provided along the rear edge of the 1B shielding body 220.

The 1B attachment Velcro (V1B) is provided on the surfaces of the first front part 121 and the second front part 122, respectively. The 1B attachment Velcro (V1B) provided in plurality is the 1A attachment Velcro (V1B) provided on the back of the 1A shield 210 (when the 1A shield 210 covers the surface of the first front part 121). It may be provided in a position corresponding to V1A).

In addition, the 1B attachment Velcro (V1B) provided in plurality is the 1A attachment provided on the back of the 1B shield 220 (when the 1B shield 220 covers the surface of the second front part 122). It may be provided in a position corresponding to Velcro (V1A).

As shown in Figures 7 and 8, the second shielding body 300 covers the first shielding body 200 on both breast areas. The second shield 300 is detachably attached to the surface of the first shield 200. The second shielding body 300 includes a 2A shielding body 310 and a 2B shielding body 320.

The 2A shielding body 310 is configured to cover one of the patient's both breasts. The 2A shielding body 310 is mainly detachably attached to the surface of the 1A shielding body 210.

The 2B shielding body 320 is configured to cover the other breast area among both breasts of the patient. The 2B shielding body 320 is mainly detachably attached to the surface of the 1B shielding body 220.

At least one of the 2A shielding body 310 and the 2B shielding body 320 covers the area between both breasts. Figure 9 shows an embodiment in which the 2A shielding body 310 covers the area between both breasts. Additionally, the 2A shielding body 310 and the 2B shielding body 320 extend toward the patient's side.

Therefore, when performing radiation therapy on areas close to the breast, such as the liver, pancreas, spleen, kidneys, lumbar spine, cervical spine, head and neck, etc., if the scattered radiation is to reach the breast area from the front and sides of the patient's chest, the scattered radiation must be directed to the first shielding body (200 ) and then pass through the second shield 300.

As shown in FIGS. 3, 7, 8, and 9, the 2A shielding body 310 and the 2B shielding body 320 are attached to the surface of the first shielding body 200 by the second attachment Velcro (V2A, V2B). It is detachably attached to.

The 2A shield 310 is detachably attached to the surface of the 1A shield 210 mainly at the front of the first front part 121 by means of second attachment Velcro (V2A, V2B). The 2B shield 320 is detachably attached to the surface of the 1B shield 220 mainly at the front of the second front part 122 by means of second attachment Velcro (V2A, V2B).

The second attachment Velcro (V2A, V2B) includes a 2A attachment Velcro (V2A) and a 2B attachment Velcro (V2B). The 2A attachment Velcro (V2A) and the 2B attachment Velcro (V2B) are detachably coupled to each other.

The 2A attachment Velcro (V2A) is provided on the back of the 2A shielding body 310 and the 2B shielding body 320, respectively. The 2A attachment Velcro (V2A) is provided in plural numbers and is provided along the rear edge of the 2A shielding body 310. In addition, the 2A attachment Velcro (V2A) is provided in plural numbers and is provided along the rear edge of the 2B shielding body 320.

The 2B attachment Velcro (V2B) is provided on the surfaces of the 1A shielding body 210 and the 1B shielding body 220, respectively. The 2B attachment Velcro (V2B) provided in plurality is the 2A attachment Velcro (V2A) provided on the back of the 2A shield 310 (when the 2A shield 310 covers the surface of the 1A shield 210). ) can be provided in a position corresponding to.

In addition, the 2B attachment Velcro (V2B) provided in plurality is the 2A attachment Velcro provided on the back of the 2B shield 320 (when the 2B shield 320 covers the surface of the 1B shield 220). It may be provided in a position corresponding to (V2A).

One of the first shielding body 200 and the second shielding body 300 contains a material having a relatively high atomic number, and the other one of the first shielding body 200 and the second shielding body 300 contains a material having a relatively high atomic number. May contain small substances.

The materials with the above-mentioned large atomic numbers include lead (82Pb), tungsten (74W), bismuth (83Bi), barium (56Ba), cadmium (48Cd), tin (50Sn), and bismuth alloys (bismuth, cadmium, tin, lead, indium). ) may include substances such as And the materials with a low atomic number mentioned above may include materials such as beryllium (4Be), aluminum (13Al), copper (29Cu), zinc (30Zn), water, paraffin, polyethylene, etc.

As disclosed in Republic of Korea Patent Publication No. 1967664 and Japanese Patent Publication No. 2015-225062, the shielding body containing a material with a large atomic number and a material with a small atomic number is a known technology, so the description of the manufacturing method will be omitted.

There are various types of radiation used in radiation therapy, including high-energy photon beams, proton beams, and baryon beams. And the properties of scattered rays vary depending on the type of radiation. Therefore, different shielding materials must be used depending on the type of radiation to effectively shield scattered rays.

Bremsstrahlung radiation is electromagnetic radiation produced by the deceleration of a charged particle, such as an electron, when it is deflected by another charged particle, such as an atomic nucleus. This is because when beta rays are attracted to the nucleus and the acceleration changes, photons equal to the energy difference are emitted.

Beta rays (β-) are attracted to the charge of the atomic nucleus (+) due to the (-1) charge. In other words, the direction of movement of the beta ray is bent toward the atomic nucleus, and the kinetic energy decreases. As a result, bremsstrahlung radiation is emitted equal to the energy difference.

As a shielding material for high-energy radiation, lead (82Pb), tungsten (74W), bismuth (83Bi), barium (56Ba), cadmium (48Cd), tin (50Sn), bismuth alloy (bismuth, cadmium, tin, lead, indium) Likewise, if a material with a large atomic number is used, the degree of bending of the beta ray increases, increasing the probability of generating bremsstrahlung radiation. However, protective equipment for medical imaging in prior literature had the problem of not being able to prevent exposure to bremsstrahlung radiation when materials with high atomic numbers were used as shields for high-energy radiation.

In the scattered radiation shielding bra 10 to which the principle of radiation shielding for radiation therapy is applied according to an embodiment of the present invention, the first shield 200 is manufactured to include a material with a relatively low atomic number, and the second shield 200 is manufactured to include a material with a relatively low atomic number. (300) is manufactured to include a material with a relatively high atomic number, thereby solving the problems of the prior art described above.

That is, in the scattered radiation shielding bra 10 to which the principle of radiation shielding for radiation therapy according to an embodiment of the present invention is applied, the second shield 300 primarily shields the scattered radiation of high-energy radiation, and the second shielding body 300 primarily shields the scattered radiation of high-energy radiation. 1. The shielding body 200 secondarily shields the bremsstrahlung radiation, thus blocking radiation exposure to the breast area due to bremsstrahlung radiation during high-energy radiation treatment.

Conversely, in the case of low-energy radiation, scattered rays can be effectively shielded by using shielding materials with low atomic numbers such as beryllium (4Be), aluminum (13Al), copper (29Cu), zinc (30Zn), water, paraffin, and polyethylene. This is because beta rays emit more braking radiation when they interact with substances with higher atomic numbers.

Therefore, beta rays must be shielded with materials with a low atomic number to reduce the conversion rate to bremsstrahlung X-rays. However, the protective equipment for medical imaging in the prior literature had the problem of not being able to completely prevent radiation exposure from small amounts of braking X-rays, even though materials with low atomic numbers were used as shields for low-energy radiation.

The scattered radiation shielding bra 10 to which the principle of radiation shielding for radiation therapy is applied according to an embodiment of the present invention,

The first shielding body 200 is manufactured to contain a material with a relatively high atomic number, and the second shielding body 300 is manufactured to contain a material with a relatively low atomic number, thereby solving the problems of the prior art described above. .

That is, in the scattered radiation shielding bra 10 to which the principle of radiation shielding for radiation therapy according to an embodiment of the present invention is applied, the second shield 300 primarily shields the scattered rays of low-energy radiation, and the first The shielding body 200 secondarily shields the bremsstrahlung X-rays, thereby blocking exposure to the breast area due to bremsstrahlung radiation during low-energy radiation treatment. In addition, when it is determined that the breast can be sufficiently protected by using only one of the first shielding body 200 or the second shielding body 300 in shielding the scattered rays of low-energy radiation, only one of the two may be used.

On the other hand, since neutron rays have no charge, the direction of movement of beta rays does not bend in the Coulomb field of the atomic nucleus. Neutral rays lose energy by colliding with atomic nuclei, and the smaller the atomic number, the easier it is to lose energy, so water, paraffin, polyethylene, etc. containing a large amount of hydrogen or carbon atoms should be used as a shielding material.

Therefore, during neutron beam radiation therapy, the first shielding body 200 is manufactured to include a material with a relatively low atomic number, thereby blocking radiation exposure to the breast area during neutron beam radiation therapy. During neutron radiation treatment, the second shielding body 300 may not be used.

The above-mentioned first attachment Velcro (V1A, V1B) can be detachably attached to the front part 120 and the first shield 200. And the second attachment Velcro (V2A, V2B) can be detachably attached to the first shield 200 and the second shield 300.

Accordingly, the second shielding body 300 may be attached to the surface of the wearing member 100, and the first shielding body 200 may be attached to the surface of the second shielding body 300. Therefore, the positions of the first shielding body 200 and the second shielding body 300 may be adjusted depending on the type of radiation used in radiation therapy.

As shown in Figures 1 to 3, the shoulder band 400 is configured to press the patient's breast in front of the front part 120. The shoulder band 400 includes a first shoulder band 410 and a second shoulder band 420.

One end of the first shoulder band 410 is coupled to the first front part 121 at the lower part of the breast. One end of the second shoulder band 420 is coupled to the second front part 122 at the lower part of the breast.

The shoulder band 400 and the front portion 120 may be sewn, glued, or heat-sealed to each other. Alternatively, the front part 120 and the shoulder band 400 may be manufactured as one piece. Shoulder band 400 may be made of air equivalent material.

The shoulder band 400 may be made of carbon fiber woven into a mesh shape. If the shoulder band 400 is woven in a mesh form, deformation of the shoulder band 400 becomes easier when an external force is applied. Accordingly, it is easy to adjust the compression force of the shoulder band 400 by external force.

As shown in FIGS. 2, 6A, and 6B, the other end of the shoulder band 400 is detachably coupled to the back portion 110.

A first Velcro (VC1) is provided on the back portion 110, and a second Velcro (VC2) is provided on the other end of the shoulder band 400, which is detachably coupled to the first Velcro (VC1). The shoulder band 400 and the back portion 110 are detachably coupled by first Velcro (VC1) and second Velcro (VC2). The first Velcro (VC1) may form a larger area than the second Velcro (VC2).

The middle portion of the shoulder band 400 is in close contact with the patient's shoulder area. By adjusting the position of the second Velcro (VC2), the attachment and detachment positions of the shoulder band 400 and the back portion 110 can be adjusted in various ways. By adjusting the position at which the other end of the shoulder band 400 is coupled to the back portion 110, the position of the breast can be changed.

The shoulder band 400 forms an overall long band shape. The shoulder band 400 has a shape whose width becomes wider toward the front part 120. Accordingly, the shoulder band 400 forms a shape that covers the breast over the front portion 120.

When the other end of the shoulder band 400 is coupled to the back portion 110, the shoulder band 400 forms elasticity that pulls the lower portion of the front portion 120 upward while covering the breast. Therefore, the shoulder band 400 can prevent radiation exposure by separating the lower breast tissue upward. The shoulder band 400 maintains the tensile force applied and compresses the patient's breast.

By adjusting the positions at which the other ends of the shoulder bands 400 are coupled to the back portion 110, the force with which the shoulder bands 400 compress the patient's breast on the front portion 120 is adjusted. Therefore, the patient's chest can be compressed with appropriate compression force. In addition, even if the size of the breast and chest circumference changes due to a change in the patient's weight or only the size of one breast changes, the breast can be stably supported with appropriate compression force.

As shown in FIGS. 6A and 6B, a third Velcro (VC3) that is detachably coupled to the second Velcro (VC2) is provided at the other end of the shoulder band 400. When the second Velcro (VC2) and the third Velcro (VC3) are combined when storing and washing the wearing member 100, damage to the second Velcro (VC2) and entanglement and damage to the wearing member 100 can be prevented. there is.

A fourth Velcro (VC4) is provided on one side of the other end of the shoulder band 400 based on the second Velcro (VC2), and a fourth Velcro (VC4) is provided on the other end of the shoulder band 400 based on the second Velcro (VC2). A fifth Velcro (VC5) is provided that is detachably coupled to the fourth Velcro (VC4).

As shown in FIG. 6C, when the other end of the shoulder band 400 is rolled along the longitudinal direction and then the fourth Velcro (VC4) and the fifth Velcro (VC5) are combined, the other end of the shoulder band 400 is The rolled state is maintained. Therefore, when storing and washing the wearing member 100, if the other end of the shoulder band 400 is rolled along the longitudinal direction and then the fourth Velcro (VC4) and the fifth Velcro (VC5) are combined, the second Velcro (VC2) ), and entanglement and damage to the wearing member 100 can be prevented.

According to the present invention, the first shield is detachably attached to the surface of the wearing member covering both breasts, and the second shield is detachably attached to the surface of the first shield, so that the liver, pancreas, spleen, kidney, lumbar spine, During radiation treatment of areas close to the breast, such as the cervical spine, head and neck, etc., the shielding of the woman's breast is maintained firmly, and the shielding of the woman's breast can be easily released upon completion of radiation treatment. It is possible to provide a scattered radiation shielding bra that applies the principle of radiation shielding.

In addition, one of the first shielding body and the second shielding body contains a material with a relatively high atomic number, and the other one of the first shielding body and the second shielding body contains a material having a relatively low atomic number, so that it is close to the breast. It is possible to provide a scattered radiation shielding bra that applies the principle of radiation shielding for radiation therapy, which almost completely blocks exposure to the breast area by bremsstrahlung radiation and bremsstrahlung X-rays of high-energy radiation and low-energy radiation during local radiation therapy. .

Although specific embodiments of the present invention have been described and shown above, it is known in the art that the present invention is not limited to the described embodiments, and that various modifications and changes can be made without departing from the spirit and scope of the present invention. This is self-evident to those who have it. Accordingly, such modifications or variations should not be understood individually from the technical idea or viewpoint of the present invention, and the modified embodiments should be regarded as falling within the scope of the claims of the present invention.

10 : bra
100: Wearing member 200: First shielding body
110: back 210: 1A shielding body
120: Front part 220: 1B shielding body
121: 1st front part V1A: 1A attachment velcro
122: 2nd front V1B: 1B attachment velcro
130: Coupling member 400: Shoulder band
140: shoulder portion 410: first shoulder band
141: first shoulder portion 420: second shoulder band
142: second shoulder VC1: first Velcro
300: Second shielding body VC2: Second Velcro
310: 2A shielding body VC3: 3rd Velcro
320: 2B shielding body VC4: 4th Velcro
V2A: No. 2A attachment Velcro VC5: No. 5 Velcro
V2B: 2B attachment velcro
2: Couch
3: Radiation treatment device

Claims (13)

A wearing member that surrounds the patient's chest and covers both breasts;
a first shielding body detachably attached to the surface of the wearing member and covering both breast areas; and
A second shield is detachably attached to the surface of the first shield and covers both breast areas,
One of the first shield and the second shield includes a material with a relatively high atomic number,
The other of the first shield and the second shield includes a material with a relatively low atomic number,
The wearing member includes a back portion that covers the patient's back region,
It further includes a shoulder band, one end of which is coupled to the wearing member at the lower part of the patient's breast, and the other end of which is detachably coupled to the back,
A first Velcro is provided on the back,
A second Velcro is provided at the other end of the shoulder band and is detachably coupled to the first Velcro,
A fourth Velcro is provided on one side of the other end of the shoulder band based on the second Velcro,
A fifth Velcro is provided on the other end of the shoulder band with respect to the second Velcro, and is detachably coupled to the fourth Velcro,
Scattered radiation shielding applied based on the principle of radiation shielding for radiation therapy, wherein the state in which the other end of the shoulder band is rolled along the longitudinal direction is selectively maintained by detachable coupling of the fourth Velcro and the fifth Velcro. bra. According to paragraph 1,
The first shielding body,
A 1A shield covering one breast area; and
It includes a 1B shield covering the other breast area,
A scattered radiation shielding bra to which the principle of radiation shielding for radiation therapy is applied, characterized in that at least one of the 1A shielding body and the 1B shielding body covers the area between both breasts. According to paragraph 2,
A scattered radiation shielding bra to which the principle of radiation shielding for radiation therapy is applied, wherein the first shielding body 1A and the first shielding body 1B extend toward the patient's side. According to paragraph 2,
A scattered radiation shielding bra to which the principle of radiation shielding for radiation therapy is applied, wherein the first shielding body 1A and the shielding body 1B are detachably attached to the surface of the wearing member by a first attachment Velcro. According to paragraph 1,
The second shielding body,
A 2A shield covering one breast area; and
It includes a 2B shield covering the other breast area,
A scattered radiation shielding bra applying the principle of radiation shielding for radiation therapy, wherein at least one of the 2A shielding body and the 2B shielding body covers the area between both breasts. According to clause 5,
A scattered radiation shielding bra to which the principle of radiation shielding for radiation therapy is applied, wherein the 2A shielding body and the 2B shielding body extend toward the patient's side. According to clause 5,
A scattered radiation shielding bra to which the principle of radiation shielding for radiation therapy is applied, wherein the 2A shielding body and the 2B shielding body are detachably attached to the surface of the first shielding body by a second attachment Velcro. According to paragraph 1,
The wearing member is,
A first front part covering one breast area and connected to the back part; and
Covering the other breast area and comprising a second front part connected to the back part,
The first front part and the second front part are joined by a coupling member between both breasts,
A scattered radiation shielding bra applying the principle of radiation shielding for radiation therapy, wherein the first shield covers the coupling member. According to clause 8,
A scattered radiation shielding bra applying the principle of radiation shielding for radiation therapy, characterized in that the coupling member is provided with a zipper or Velcro. According to paragraph 1,
A scattered radiation shielding bra applying the principle of radiation shielding for radiation therapy, wherein the position of the breast changes when the position of the other end of the shoulder band is adjusted to the back. According to clause 10,
A scattered radiation shielding bra to which the principle of radiation shielding for radiation therapy is applied, characterized in that the wearing member and the shoulder band are made of an air equivalent material woven in the form of a mesh. According to clause 10,
A scattered radiation shielding bra to which the principle of radiation shielding for radiation therapy is applied, characterized in that a third Velcro that is detachably coupled to the second Velcro is provided at the other end of the shoulder band. delete

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