KR102387138B1 - Radiation shield filter x-ray photographing apparatus having aperture - Google Patents

Abstract

The present invention relates to an X-ray imaging apparatus having an diaphragm, in which an diaphragm body for controlling a radiation area of X-rays emitted to a tube and a radiation shielding filter are located, and the radiation shielding filter includes a liquid material for radiation shielding inside a casing. Including a liquid filter body filled in, a solid filter body laminated on the liquid filter body, positioned in the direction in which X-rays are incident, having a multi-layer structure, and made of a material that shields radiation, after radiation is irradiated to the patient, it reflects and By effectively blocking the scattered radiation and the total radiation scattered or reflected to the operator, the amount of radiation transmitted to the operator and the patient can be significantly reduced.

Description

X-ray photographing apparatus equipped with an aperture

The present invention relates to an X-ray imaging apparatus having a diaphragm, and more particularly, to an X-ray imaging apparatus having a diaphragm which is provided with a radiation shielding filter to effectively shield radiation.

In general, the X-ray imaging device used in the hospital X-ray imaging room is of a fixed type, and the one used in the operating room is of a movable type. , when performing surgery on disc patients or spine-related patients, when aligning the bones, driving screws or pins, examining the bone structure from various angles, or performing correction of fractures (aligning the bones without surgery) It is a device that takes X-rays to see if the reduction was successful, processes the images with a computer, and displays them on a monitor in real time like a video. It is especially essential in orthopedic and neurosurgery surgeries.

In the case of the C-arm, the amount of exposure is smaller than that of a fixed X-ray imaging device, but while the C-arm is on during surgery (that is, while the switch is pressed, it is about 30 seconds to 1 minute depending on the person operating the X-ray imaging device) In this case, since the operator (herein, the term 'operator' includes doctors, nurses, surgical assistants, operators of X-ray imaging equipment, etc.) is continuously exposed to radiation, after a major operation that takes several hours, the operator Because patients are exposed to radiation for a long time, the amount of radiation exposure increases. As a result, extreme fatigue after surgery and repeated exposure to radiation for a long period of time can cause a lot of damage from radiation, such as cancer or leukemia. will occur

0001) Korean Patent Registration No. 1070100 "Drive device for imaging device" (Registered on September 27, 2011)

An object of the present invention is to provide an X-ray imaging apparatus having a radiation shielding filter provided at the exit of the aperture for controlling the radiation area of X-rays to protect the operator and the patient exposed by radiation emitted during X-ray imaging. there is

In order to achieve the above object, an embodiment of an X-ray imaging apparatus having an aperture according to the present invention includes: a tube in which an X-ray generator is built-in and an X-ray outlet through which X-rays are emitted is located; and a detector located opposite the tube to detect X-rays, a diaphragm body mounted on the tube to control a radiation area of X-rays emitted through the X-ray outlet, and shielding the X-ray radiation passing through the diaphragm body. and a filter unit for shielding radiation, wherein the filter unit for shielding radiation is a liquid filter body in which a liquid material for shielding radiation is filled inside a casing, is laminated on the liquid filter body, is positioned in a direction in which X-rays are incident, and has a multi-layer structure, It is characterized in that it includes a solid filter body made of a material for shielding radiation.

In the present invention, the liquid filter body contains 10-30 parts by weight of silver (Ag), 25-40 parts by weight of a polymeric dispersant, 45-50 parts by weight of water, and copper ( A liquid material composed of a mixture of Cu) and 1 to 5 parts by weight of one or more elements selected from aluminum (Al) and mercury (Hg) may be filled in the casing.

In the present invention, the solid filter body may be positioned above and below the liquid filter body, respectively.

In the present invention, the solid filter body may be manufactured in the form of a casing in which the liquid-inserted filter body is inserted and positioned.

The radiation shielding filter unit further includes a filter mounting casing in which the solid filter body is positioned and the liquid filter body is inserted therein, wherein the filter mounting casing is provided with a first hollow part through which X-rays pass, and the liquid phase filter body is inserted therein. A mounting casing member in which the filter insertion part into which the filter body is inserted is located, and a cover casing member coupled to the open part of the mounting casing member to support the liquid filter body in the filter insertion part and having a second hollow part through which X-rays pass. and the solid filter body may be respectively positioned in the first hollow part and the second hollow part.

In the present invention, the radiation shielding filter unit is mounted on the diaphragm body, and the solid filter body is located on the side where the X-rays are incident, the first filter member made of tungsten material, and the first filter member is stacked on the B It may include a second filter member made of ₂ O ₃ material.

In the present invention, the solid filter body may further include a third filter member laminated on the second filter member and made of a mixed material of Y ₂ O ₃ and B ₂ O ₃ .

In the present invention, the first filter member is a plate filter manufactured in a plate shape by sintering tungsten (W) powder, and the second filter member is a plate filter manufactured in a plate shape by sintering B ₂ O ₃ powder, The third filter member is Y ₂ O ₃ powder and Mixed powder mixed with B ₂ O ₃ powder It may be a plate-shaped filter manufactured in the form of a plate by sintering.

In the present invention, the radiation shielding filter unit is located between the X-ray generator and the diaphragm body in the tube housing portion of the tube, and the solid filter body is located on the X-ray incident side and is made of a first tungsten material. It may include a filter member and a second filter member stacked on the first filter member and made of a B ₄ C (boron carbide) material.

In the present invention, the solid filter body may further include a third filter member laminated on the second filter member and made of a mixed material of Y ₂ O ₃ (yttrium dioxide) and B ₂ O ₃ (boron trioxide). .

In the present invention, the first filter member is a plate filter manufactured in a plate shape by sintering tungsten (W) powder, and the second filter member is a plate filter manufactured in a plate shape by sintering B ₄ C powder, 3The filter member is Y ₂ O ₃ powder and Mixed powder mixed with B ₂ O ₃ powder It may be a plate-shaped filter manufactured in the form of a plate by sintering.

In the present invention, the first filter member may be a plate-shaped filter having a thickness of 0.1 mm or less, and the second filter member and the third filter member may be a plate-shaped filter having a thickness more than twice that of the first filter member.

The present invention is a composite radiation shielding filter of a multilayer structure, which effectively blocks radiation reflected and scattered after radiation is irradiated to the patient and all radiation scattered or reflected to the operator, thereby significantly reducing the amount of radiation delivered to the operator and the patient there is

In addition, according to the present invention, a filter for shielding radiation is provided in the diaphragm for controlling the radiation area of X-rays to protect the operator and the patient exposed by radiation emitted during X-ray imaging, thereby securing safety during X-ray imaging and the X-ray imaging device. There is an effect of simplifying the structure and reducing the manufacturing cost.

1 is a view showing an embodiment of an X-ray imaging apparatus having an aperture according to the present invention.
Figure 2 is a schematic diagram showing an embodiment of the X-ray imaging apparatus having an aperture according to the present invention.
Figure 3 is a schematic diagram showing another embodiment of the X-ray imaging apparatus having an aperture according to the present invention.
Figure 4 is a perspective view showing another embodiment of the X-ray imaging apparatus having an aperture according to the present invention.
5 is a perspective view showing an embodiment of the diaphragm body in the X-ray imaging apparatus having an iris according to the present invention.
6 is a bottom view showing an embodiment of the diaphragm body in the X-ray imaging apparatus having an iris according to the present invention.
7 is a perspective view showing another embodiment of the diaphragm device for an X-ray imaging apparatus having an iris according to the present invention.

Hereinafter, the present invention will be described in more detail.

A preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. Prior to the detailed description of the present invention, the terms or words used in the present specification and claims described below should not be construed as being limited to conventional or dictionary meanings. Therefore, the configuration shown in the embodiments and drawings described in the present specification is only the most preferred embodiment of the present invention and does not represent all the technical spirit of the present invention, so at the time of the present application, various It should be understood that there may be equivalents and variations.

1 is a view showing an embodiment of an X-ray imaging apparatus having an aperture according to the present invention. Referring to FIG. 1, the X-ray imaging apparatus having an aperture according to the present invention is a fracture or disc in neurosurgery or orthopedic surgery, etc. As an example, the C-arm 10, which is a portable X-ray imaging device, which is an essential equipment used during surgery on a patient, etc. is taken as an example.

The C-arm 10, which is a movable X-ray imaging device according to the present invention, is an X-ray generator 21 at both ends of the C-shaped frame 12 and a tube 11 and X-rays. A detector 13 for receiving an image is attached to the middle of the frame 12, a shaft that becomes a central axis when the frame is rotated, and a control unit and a control unit having a caster for movement at the bottom attached to receive data A monitor 15 that shows in real time like a moving picture is provided.

That is, the mobile X-ray imaging apparatus according to the present invention is located at one end of the C-shaped frame 12 and the C-shaped frame 12, and the X-ray generator 21 is located therein, so that the X-ray emission port 22 is located. ) through a tube (tube, 11) for emitting X-rays, and a detector 13 positioned at the other end of the C-shaped frame (12) to detect X-rays emitted from the tube (tube, 11).

In (a) of Figure 1, the tube 11 is located on the lower end side of the C-shaped frame 12, and the detector 13 is located on the upper end side of the C-shaped frame 12, so that X-rays are radiated upward. An example is shown.

In (b) of FIG. 1 , the tube 11 is positioned on the upper end side of the C-shaped frame 12 , and the detector 13 is positioned on the lower end side of the C-shaped frame 12 , so that X-rays are radiated downward. An example is shown.

In the following, the tube 11 of the present invention is located on the lower end side of the C-shaped frame 12 as shown in FIG. As in (b), the tube 11 is positioned on the upper end side of the C-shaped frame 12 to radiate X-rays upward, so that it can be configured in the same principle.

2 is a schematic diagram showing an embodiment of a tube 11 in an X-ray imaging apparatus having an aperture according to the present invention, and referring to FIG. 2 , the tube 11 is a tube housing in which the X-ray outlet 22 is located. The unit 20 includes an X-ray generator 21 positioned in the tube housing unit 20 to emit X-rays to the X-ray outlet 22 of the tube housing unit 20 .

The diaphragm body part 100 for controlling the radiation area of X-rays may be located in the X-ray emission port 22 of the tube housing part 20 .

As an example, the aperture body part 100 is mounted on the outer surface of the tube housing part 20 , that is, the upper surface of the tube housing part 20 .

The tube 11 is located in the tube housing unit 20 , in which the X-ray emission port 22 is located, and the tube housing unit 20 to generate X-rays for emitting X-rays to the X-ray emission port 22 of the tube housing unit 20 . part 21 .

In addition, the tube housing unit 20 is mounted on the outer surface of the base housing member 20a and the base housing member 20a in which the X-ray generator 21 is located and the first X-ray outlet 22 is located. The diaphragm body part 100 is positioned therein and includes a diaphragm cover housing member 20b in which the second X-ray emission port 11b is positioned.

As an example, the diaphragm body 100 has an diaphragm structure in which an X-ray passage part through which X-rays pass is positioned, and the size of the X-ray passage part can be adjusted.

The diaphragm structure may be variously modified and implemented using a known diaphragm structure, and specific embodiments will be described in more detail below.

In the diaphragm body 100 , the radiation shielding filter 200 for shielding the X-ray radiation is located on the exit side of the X-ray passage unit.

The radiation shielding filter unit 200 includes 10 to 30 parts by weight of silver (Ag), 25 to 40 parts by weight of a polymeric dispersant, 45 to 50 parts by weight of water, and copper On the liquid filter body 210 and the liquid filter body 210, a liquid substance composed by mixing 1 to 5 parts by weight of (Cu) and at least one element selected from aluminum (Al) and mercury (Hg) is filled in the case. The solid filter body 220 is stacked on the surface and positioned in the direction in which the X-rays are incident, has a multi-layer structure and includes a solid filter body 220 made of a material that shields radiation, and the solid filter body 220 is the upper and lower portions of the liquid filter body 210 . It may be located on at least one side of the side, and may be respectively located on the upper and lower portions of the liquid filter body 210 .

For example, the liquid filter body 210 is positioned between a pair of solid filter bodies 220 , and the solid filter body 220 is positioned on the side to which the X-rays are incident, and the first filter member 221 made of a tungsten material. ), the first filter member 221 is positioned to be laminated and includes a second filter member 222 made of a B ₂ O ₃ material.

In addition, the solid filter body 220 is stacked on the second filter member 222 made of a B ₂ O ₃ material, and the third filter member 223 is made of a mixed material of Y ₂ O ₃ and B ₂ O ₃ . further includes

It should be noted that the casing of the liquid filter body 210 is made of a synthetic resin material and can be variously modified and implemented with other known materials through which X-rays can pass.

The filter mounting casing 230 is provided with a first hollow portion through which X-rays pass, a filter insertion portion into which the liquid filter body 210 is inserted is located, and a mounting casing member 231 mounted on the X-ray emission portion 21a; It is coupled to the opening of the mounting casing member 231 to support the liquid filter body 210 in the filter insertion portion and includes a cover casing member 232 having a second hollow portion through which X-rays pass.

For example, the solid filter body 220 is positioned in the first hollow part and the second hollow part, respectively, and the solid filter body 220 is formed in a casing shape into which the liquid filter body 210 can be inserted. It should be noted that the liquid filter body 210 may have a built-in structure therein.

The first filter member 221 is a plate-shaped filter manufactured in the form of a plate by sintering tungsten (W) powder, and the second filter member 222 is a plate-shaped filter manufactured in the form of a plate by sintering B ₂ O ₃ powder, The third filter member 223 is Y ₂ O ₃ powder and Mixed powder mixed with B ₂ O ₃ powder As an example, a plate-shaped filter manufactured in the form of a plate by sintering is used.

The first filter member 221 is a plate-shaped filter of 0.1 mm or less, and the second filter member 222 and the third filter member 223 are plate-shaped filters having a thickness more than twice that of the first filter member 221. Take it as an example.

The solid filter body 220 has a great effect in reducing scattered X-rays because the W and boron compounds block radiation having different energies.

In addition, the solid filter body 220 shields high energy X-rays of a short wavelength by disposing a first filter member 221 made of a tungsten material and being a plate-shaped filter of 0.1 mm or less on the side to which the X-rays are incident, and a boron compound and a boron compound in the next layer The composition in which the composite is arranged maximizes the radiation shielding efficiency.

The radiation shielding filter 200 located in the diaphragm body 100 is the tube housing 20, that is, the exit side of X-rays from the diaphragm body 100 protruding from one side of the base housing member 20a. Since the distance from the X-ray generator 21 in the tube housing 20 is generated, the second filter member 222 is used as the B ₄ C material rather than the B 4 C material. B ₂ O ₃ It was confirmed that the material can further minimize the scattering properties.

That is, the first filter member 221 of tungsten material, B ₂ O ₃ ( A solid filter body including a second filter member 222 made of boron trioxide) and a third filter member 223 made of a mixed material of Y ₂ O ₃ (yttrium dioxide) and B ₂ O ₃ (boron trioxide) 220) is installed on the upper and lower sides of the liquid filter body 210, respectively, the radiation shielding filter 200 is installed on the X-ray outlet side in the diaphragm body 100, and the X-ray emission part of the tube 11 ( As a result of passing the X-rays emitted in 21a), it was confirmed that 80% of the scattered X-rays were reduced.

In addition, the third filter member 223 is Y ₂ O ₃ powder and Mixed powder mixed with B ₂ O ₃ powder It was confirmed that sintering was effective in improving the image during X-ray imaging.

The radiation shielding filter unit 200 is directly mounted on the X-ray emitter 21a of the X-ray generator 21 to shield the radiation in the X-rays emitted through the X-ray emitter 21a, so that by radiation emitted during X-ray imaging. It can protect the exposed operator and patient.

3 is a schematic diagram showing another embodiment of an X-ray imaging apparatus having an iris according to the present invention. Referring to FIG. 3 , the radiation shielding filter unit 200 is mounted directly on the X-ray generator 21 and the diaphragm body It may be located between the unit 100 and the X-ray generator 21 .

The radiation shielding filter 200 is directly mounted on the X-ray emitter 21a from which the X-rays are emitted from the X-ray generator 21 to shield the radiation in the X-rays directly emitted from the X-ray emitter 21a.

The X-ray generator 21 may be variously modified and implemented in a known configuration in a known X-ray imaging apparatus configured as a C-arm, and a detailed description thereof will be omitted.

The radiation shielding filter 200 may be directly mounted on the X-ray emitter 21a of the X-ray generator 21 to maximize the efficiency of shielding radiation for X-rays emitted from the X-ray emitter 21a.

The configuration of the X-ray generator 21 and the X-ray emitter 21a positioned at the X-ray generator 21 to emit X-rays can be variously modified into known configurations and implemented as described above. More detailed information Note that the description is omitted.

The radiation shielding filter unit 200 is mounted on the X-ray emitting unit 21a by fastening bolts as an example, and in addition to the known mounting structure, it can be variously modified and implemented, and a more detailed description will be omitted. .

The radiation shielding filter unit 200 includes 10 to 30 parts by weight of silver (Ag), 25 to 40 parts by weight of a polymeric dispersant, 45 to 50 parts by weight of water, and copper On the liquid filter body 210 and the liquid filter body 210, a liquid substance composed by mixing 1 to 5 parts by weight of (Cu) and at least one element selected from aluminum (Al) and mercury (Hg) is filled in the case. The solid filter body 220 is stacked on the surface and positioned in the direction in which the X-rays are incident, and has a multi-layered structure.

The solid filter body 220 may be positioned on at least one of the upper and lower sides of the liquid filter body 210 , and may be positioned on the upper and lower sides of the liquid filter body 210 , respectively.

For example, the liquid filter body 210 is positioned between a pair of solid filter bodies 220 , and the solid filter body 220 is positioned on the side to which the X-rays are incident, and the first filter member 221 made of a tungsten material. ), the first filter member 221 is positioned to be laminated and includes a second filter member 222 made of B ₄ C (boron carbide) material.

In addition, the solid filter body 220 is stacked on the second filter member 222 made of B ₄ C material, and is made of a mixed material of Y ₂ O ₃ (yttrium dioxide) and B ₂ O ₃ (boron trioxide). It further includes a third filter member (223).

It should be noted that the casing of the liquid filter body 210 is made of a synthetic resin material and can be variously modified and implemented with other known materials through which X-rays can pass.

In addition, the filter body for radiation shielding further includes a filter mounting casing 230 in which the solid filter body 220 is positioned and the liquid filter body 210 is inserted therein.

The filter mounting casing 230 is provided with a first hollow portion through which X-rays pass, a filter insertion portion into which the liquid filter body 210 is inserted is located, and a mounting casing member 231 mounted on the X-ray emission portion 21a; It is coupled to the opening of the mounting casing member 231 by screwing to support the liquid filter body 210 in the filter insertion part and includes a cover casing member 232 having a second hollow part through which X-rays pass.

For example, the solid filter body 220 is positioned in the first hollow part and the second hollow part, respectively, and the solid filter body 220 is formed in a casing shape into which the liquid filter body 210 can be inserted. It should be noted that the liquid filter body 210 may have a built-in structure therein.

The first filter member 221 is a plate-shaped filter manufactured in the form of a plate by sintering tungsten (W) powder, and the second filter member 222 is a plate-shaped filter manufactured in the form of a plate by sintering B ₄ C powder. 3 The filter member 223 is Y ₂ O ₃ powder and Mixed powder mixed with B ₂ O ₃ powder As an example, a plate-shaped filter manufactured in the form of a plate by sintering is used.

The first filter member 221 is a plate-shaped filter of 0.1 mm or less, and the second filter member 222 and the third filter member 223 are plate-shaped filters having a thickness more than twice that of the first filter member 221. Take it as an example.

The solid filter body 220 has a great effect in reducing scattered X-rays because the W and boron compounds block radiation having different energies.

In addition, the solid filter body 220 shields high energy X-rays of a short wavelength by disposing a first filter member 221 made of a tungsten material and being a plate-shaped filter of 0.1 mm or less on the side to which the X-rays are incident, and a boron compound and a boron compound in the next layer The composition in which the composite is arranged maximizes the radiation shielding efficiency.

Finally, the first filter member 221 of tungsten material positioned on the side to which the X-rays are incident, the second filter member 222 of the B ₄ C material, Y ₂ O ₃ and B ₂ O ₃ made of a mixed material The result of passing the X-rays emitted from the X-ray emission part 21a of the tube 11 by disposing the solid filter body 220 including the three filter members 223 on the upper and lower sides of the liquid filter body 210, respectively. It was confirmed that 80% of scattered X-rays were reduced.

In addition, the third filter member 223 is Y ₂ O ₃ powder and Mixed powder mixed with B ₂ O ₃ powder It was confirmed that sintering was effective in improving the image during X-ray imaging.

The radiation shielding filter unit 200 is directly mounted on the X-ray emission unit 21a of the X-ray generator 21 to shield the radiation in the X-rays emitted through the X-ray emission port, and is exposed by the radiation emitted during X-ray imaging. It can protect the operator and patient.

On the other hand, FIG. 4 is a perspective view showing another embodiment of an X-ray imaging apparatus having an aperture according to the present invention, and FIG. 5 is an embodiment of the diaphragm body 100 in the X-ray imaging apparatus having an aperture according to the present invention. It is a perspective view showing an example, and Fig. 6 is a bottom view showing an embodiment of the diaphragm body 100 in the X-ray imaging apparatus having an iris according to the present invention.

An embodiment of the diaphragm body 100 in the X-ray imaging apparatus having an iris according to the present invention with reference to FIGS. 4 to 6 will be described in detail below.

In the base housing member 20a of the tube 11, a first X-ray emitter 11a through which the X-rays generated by the X-ray generator 21 pass therethrough are positioned, and the first X-ray emitter 11a is a diaphragm mounting part. (11b) is located.

In addition, the diaphragm body part 100 is mounted on the diaphragm mounting part 11b, the X-ray passage part through which the X-rays passing through the first X-ray emission port 11a are located, and the diaphragm part 130 for adjusting the opening/closing size of the X-ray passage part. includes

The radiation shielding filter unit 200 is positioned to cover the X-ray passing unit, and shields radiation from X-rays passing through the X-ray passing unit.

For example, the filter unit 200 for shielding radiation is positioned to cover the second X-ray outlet 121 of the second iris plate member 120 at the exit side of the X-ray passage unit, that is, the following diaphragm plate member.

The filter unit 200 for shielding radiation includes a liquid filter body 210 and a solid filter body 220, which can be implemented in the same manner as in the above-mentioned embodiment, and a more detailed description will be omitted.

As an example, the filter mounting casing 230 has a plurality of bolt mounting units having bolt holes positioned thereon so as to be mounted to the aperture unit 130 by bolting.

In more detail, the diaphragm body 100 is mounted on the tube 11 and spaced apart on the base plate member 110 and the base plate member 110 in which the first X-ray outlet 110a through which X-rays pass is located. The size of the opening and closing of the second X-ray outlet 121 by opening and closing the second X-ray outlet 121 after being mounted on the aperture plate member 120 and the aperture plate member 120 in which the second X-ray outlet 121 through which X-rays pass is positioned. It may include an iris unit 130 for controlling the diaphragm unit 130 and an iris operation unit 140 for controlling the opening and closing size of the second X-ray outlet 121 by operating the diaphragm unit 130 .

In addition, the aperture body part 100 is mounted on the base plate member 110 to operate the opening/closing door unit 150 for opening and closing the first X-ray outlet 110a and the opening/closing door unit 150 to operate the first X-ray outlet 110a. ) may include a door operation unit 160 for opening and closing.

The opening/closing door unit 150 meets at the center of the first X-ray outlet 110a, blocks the first X-ray outlet 110a, and moves linearly to open and close the first X-ray outlet 110a. A first door panel member 151 and and a second door panel member 152 .

The door operation unit 160 includes a first door operation rotation motor 161 and a second door operation rotation motor 162 for operating the first door panel member 151 and the second door panel member 152, respectively. , a plurality of gears for transmitting the rotational force of the first door operation rotation motor 161 and the second door operation rotation motor 162 to the first door panel member 151 and the second door panel member 152, respectively. The first door operating gear unit 163 and the second door operating gear unit 164 may be included.

The first door panel member 151 is linearly reciprocated by the rotational force of the first rotation motor 161 for operating the door, and the second door panel member is moved in a straight line by the rotational force of the rotation motor 162 for operating the second door. It moves linearly in opposite directions to the door panel member.

That is, the first door panel member 151 and the second door panel member 152 are moved in opposite directions to close the first X-ray outlet 110a or moved in opposite directions to the first X-ray outlet 110a. will open

The door operation unit 160 includes one rotating motor for operating the door, is rotated by receiving the rotational force of the rotating motor for operating the door, and is provided to the first door panel member 151 and the second door panel member 152 to each other. It may include an actuating screw that is screwed in the opposite direction, and in addition, various known linear movement conversion structures for moving the first door panel member 151 and the second door panel member 152 in different directions are provided. It should be noted that a more detailed description will be omitted since it can be implemented using the same.

The diaphragm unit 130 is spaced apart from the diaphragm plate member 120 and has a third X-ray outlet 131a through which X-rays pass, and a rotation plate member 131 rotatably positioned, a rotation plate member 131 and Located between the diaphragm plate members 120 , one end side is rotatably connected to the rotation plate member 131 , and the other end side is rotatably connected to the aperture plate member 120 , and a second X-ray outlet 121 . Includes a plurality of arc-shaped band members 132 for diaphragm for adjusting the opening and closing size of the.

In addition, the diaphragm operation unit 140 rotates the diaphragm plate member 120 to rotate the plurality of arc-shaped band members 132 for the diaphragm around the other end side connected to the diaphragm plate member 120 while rotating the second X-ray outlet. (121) to be able to adjust the opening and closing size.

The diaphragm operation unit 140 is rotatably positioned on the end side of the plate support member 142 and the plate support member 142 standing apart from the diaphragm plate member 120 and rotates on the outer circumferential surface of the plate member 131 . ) in which the plate support groove 142a is inserted, the roll member 142 for guiding the rotation of the plate, the rotational motor 143 for diaphragm operation that generates a rotational force for rotating the rotating plate member 131, the diaphragm rotation motor and a rotational force transmission unit 144 for transmitting rotational force to the rotational plate member 131 .

The rotational force transmitting unit 144 is mounted on the rotating plate member 131 and fixed, and the plate operating gear 144a in which the fourth X-ray outlet 144b through which X-rays pass is located, the shaft of the rotational motor 143 for diaphragm operation It may include a main pinion gear 144c positioned at , a reduction gear 144d positioned between the main pinion gear 144c and the plate operation gear 144a.

The filter unit 200 for shielding radiation, that is, the liquid filter body 210, is positioned on the plate operating gear 144a to cover the fourth X-ray outlet 144b.

That is, the X-rays generated by the X-ray generator 21 have a first X-ray outlet 11a, a first X-ray outlet 110a, a second X-ray outlet 121, a third X-ray outlet 131a, and a fourth X-ray outlet. The radiation is removed while passing through (144b) sequentially and finally passing through the liquid filter body 210, which is the filter unit 200 for shielding radiation.

In addition, FIG. 7 is a perspective view showing another embodiment of an X-ray imaging apparatus having an aperture according to the present invention. Referring to FIG. 5, it is positioned to overlap the radiation shielding filter unit 200 so that X-rays pass through and radiation. It may further include a radiation shielding panel member 220 made of a metal material capable of shielding.

It is noted that the radiation shielding panel member 220 is made of an aluminum material or an alloy containing aluminum as an example, and in addition, it can be made of various materials of metal capable of shielding radiation.

The radiation shielding panel member 220 is mounted on the plate operating gear 144a by bolting and positioned to cover the fourth X-ray outlet 144b, and the liquid filter body 210 is on the radiation shielding panel member 220 As an example, it is positioned to be stacked and positioned to cover the fourth X-ray outlet.

X-rays generated by the X-ray generator 21 pass through two shielding filters, that is, a metal radiation shielding panel member 220 and a liquid filter body 210 filled with a liquid shielding material inside the casing, so that radiation is more efficient can be removed with

In the present invention, the radiation shielding filter 200 is provided in the diaphragm body part 100 for controlling the radiation area of X-rays, so that the operator and the patient exposed by radiation emitted during X-ray imaging can be protected, so that the X-ray imaging is safe. This has the effect of simplifying the structure of the X-ray imaging device and reducing manufacturing cost.

It should be noted that the present invention is not limited to the above-described embodiments, and can be implemented with various modifications without departing from the gist of the present invention, which is included in the configuration of the present invention.

10: C-arm 11: tube (tube)
11a: first X-ray emission port 11b: second X-ray emission port
11c : Aperture mounting part
13: detector 15: monitor
20: tube housing portion 20a: base housing member
20b: aperture cover housing member 21: X-ray generator
21a: X-ray emitter 22: X-ray emitter
100: aperture body part 110: base plate member
110a: first X-ray outlet 120: aperture plate member
121: second X-ray outlet 130: aperture unit
131: rotation plate member 131a: third X-ray outlet
132: arc-shaped band member for aperture 140: aperture operation unit
141: plate support member
142: roll member for guiding plate rotation 142a: plate support groove
143: rotation motor for iris operation 144: rotational force transmission unit
144a: plate operation gear 144b: fourth X-ray outlet
144c: main pinion gear 144d: reduction gear
150: opening and closing door part 151: first door panel member
152: second door panel member 160: door operation unit
161: rotation motor for operating the first door 162: rotation motor for operating the second door
163: first door operation gear unit 164: second door operation gear unit
200: radiation shielding filter unit 210: liquid filter body
220: solid filter body 221: first filter member
222: second filter member 223: third filter member
230: filter mounting casing 231: mounting casing member
232: cover casing member
300: radiation shielding panel member

Claims (12)

a tube in which an X-ray generator is built in and an X-ray emission port for emitting X-rays is located; and
a detector located opposite the tube to detect X-rays;
a diaphragm body part mounted on the tube to control a radiation area of X-rays emitted through an X-ray outlet; and
and a radiation shielding filter for shielding radiation of X-rays passing through the diaphragm body,
The aperture body portion,
It is mounted on the tube, the X-ray passage portion through which the X-ray passes, and a diaphragm portion for adjusting the opening and closing size of the X-ray passage portion,
The radiation shielding filter unit is positioned to cover the X-ray passing unit to shield radiation from X-rays passing through the X-ray passing unit,
The radiation shielding filter unit,
a liquid filter body in which a liquid material for shielding radiation is filled inside the casing; and
X-ray imaging apparatus having an aperture, characterized in that it is laminated on the liquid filter body, is positioned in the direction in which X-rays are incident, has a multi-layer structure, and includes a solid filter body made of a material for shielding radiation.
The method according to claim 1,
The liquid filter body contains 10-30 parts by weight of silver (Ag), 25-40 parts by weight of a polymeric dispersant, 45-50 parts by weight of water, copper (Cu) and An X-ray imaging apparatus with an aperture, characterized in that a liquid material composed of a mixture of 1 to 5 parts by weight of one or more elements selected from aluminum (Al) and mercury (Hg) is filled in the casing.
The method according to claim 1,
The solid filter body is an X-ray imaging apparatus having an aperture, characterized in that each is positioned above and below the liquid filter body.
The method according to claim 1,
The aperture body portion,
a base plate member mounted on the tube and having a first X-ray outlet through which X-rays pass;
an aperture plate member positioned to be spaced apart on the base plate and having a second X-ray outlet through which X-rays pass;
an iris unit mounted on the diaphragm plate member to open and close the second X-ray ray outlet to adjust the opening and closing size of the second X-ray ray outlet; and
and an diaphragm operation unit for controlling the opening and closing size of the second X-ray ray outlet by operating the diaphragm unit,
The aperture part,
a rotation plate member that is spaced apart from the aperture plate member and has a third X-ray outlet through which X-rays are passed and is rotatably positioned; and
Located between the rotation plate member and the aperture plate member, one end side is rotatably connected to the rotation plate member, the other end side is rotatably connected to the aperture plate member, the opening and closing of the second X-ray ray outlet Includes a plurality of arc-shaped band members for adjusting the size,
The aperture operation unit,
a plate support member erected to be spaced apart from the aperture plate member;
a plate rotation guide roll member rotatably positioned on the end side of the plate support part and having a plate support groove into which the rotation plate member is inserted on an outer circumferential surface; and
A rotation motor for diaphragm operation for generating a rotational force for rotating the rotating plate member, and a rotational force transmitting unit for transmitting the rotational force of the diaphragm rotation motor to the rotating plate member,
The rotational force transmission unit,
a plate actuating gear mounted on the rotating plate member and fixed to a fourth X-ray outlet through which the X-ray is passed;
a main pinion gear positioned on the shaft of the rotation motor for diaphragm operation; and
a reduction gear positioned between the main pinion gear and the plate actuation gear;
X-ray imaging apparatus having an aperture, characterized in that the radiation shielding filter unit is positioned on the plate operating gear to cover the fourth X-ray ray outlet.
The method according to claim 1,
Further comprising a filter mounting casing in which the solid filter body is positioned and the liquid filter body is inserted therein,
The filter mounting casing,
a mounting casing member having a first hollow portion through which X-rays pass, and having a filter insertion portion into which the liquid filter body is inserted;
and a cover casing member coupled to an open portion of the mounting casing member to support the liquid filter body in the filter insertion portion and having a second hollow portion through which X-rays pass,
The solid filter body,
X-ray imaging apparatus having an aperture, characterized in that respectively located in the first hollow portion and the second hollow portion.
The method according to claim 1,
The radiation shielding filter unit is mounted on the diaphragm body,
The solid filter body,
a first filter member positioned on the side to which the X-rays are incident and made of a tungsten material; and
X-ray imaging apparatus having an aperture, characterized in that it is stacked on the first filter member and includes a second filter member made of B ₂ O ₃ material.
7. The method of claim 6,
The solid filter body,
X-ray imaging apparatus with an aperture, which is laminated on the second filter member and further comprises a third filter member made of a mixed material of Y ₂ O ₃ and B ₂ O ₃ .
8. The method of claim 7,
The first filter member is a plate filter manufactured in a plate shape by sintering tungsten (W) powder, the second filter member is a plate filter manufactured in a plate shape by sintering B ₂ O ₃ powder, and the third filter The absence is Y ₂ O ₃ powder and Mixed powder mixed with B ₂ O ₃ powder An X-ray imaging apparatus having an aperture, characterized in that it is a plate-shaped filter manufactured in the form of a plate by sintering.
The method according to claim 1,
The radiation shielding filter unit is positioned between the X-ray generating unit and the diaphragm body in the tube housing unit of the tube,
The solid filter body,
a first filter member positioned on the side to which the X-rays are incident and made of a tungsten material; and
X-ray imaging apparatus with an aperture, characterized in that it is stacked on the first filter member and includes a second filter member made of B ₄ C (boron carbide) material.
10. The method of claim 9,
The solid filter body,
X-ray imaging with an aperture, which is laminated on the second filter member and further comprises a third filter member made of a mixed material of Y ₂ O ₃ (yttrium dioxide) and B ₂ O ₃ (boron trioxide) Device.
11. The method of claim 10,
The first filter member is a plate filter manufactured in a plate shape by sintering tungsten (W) powder, the second filter member is a plate filter manufactured in a plate shape by sintering B ₄ C powder, and the third filter member is Y ₂ O ₃ powder and Mixed powder mixed with B ₂ O ₃ powder An X-ray imaging apparatus having an aperture, characterized in that it is a plate-shaped filter manufactured in the form of a plate by sintering.
11. The method according to claim 7 or 10,
X-ray with an aperture, characterized in that the first filter member is a plate-shaped filter of 0.1 mm or less, and the second filter member and the third filter member are plate-shaped filters having a thickness more than twice that of the first filter member. shooting device.

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