JP7441053B2 - X-ray protective equipment - Google Patents

Description

Embodiments disclosed herein and elsewhere relate to an X-ray protective device.

In examinations using X-rays, it is necessary to prevent medical personnel and the patient's caregivers from being exposed to secondary X-rays generated by X-rays (primary X-rays) directly irradiated from the X-ray source to the patient. is required. Secondary X-rays are generated, for example, when primary X-rays incident on a subject cause photoelectric effects or Compton scattering within the subject. In addition, since the primary X-rays incident on the subject are scattered in a direction different from the direction of incidence, the secondary X-rays are scattered around the area where the primary X-rays were irradiated, and It causes radiation exposure to workers and caregivers.

Medical workers and caregivers can reduce their exposure to secondary X-rays by wearing clothing that protects them from X-rays. Medical workers and caregivers also wear glasses and neck protectors to protect areas that are highly sensitive to X-rays, such as the eyes and thyroid gland. However, these devices are heavy because they are made of materials that shield X-rays, and wearing them throughout treatment can be a burden on the wearer.

Therefore, X-ray protective equipment that can be placed on a top plate on which a subject is placed is conventionally known. However, since the X-ray protective equipment that can be placed on the top plate is installed on the side of the top plate, it is not possible to prevent medical personnel and caregivers who are on the head side or foot side of the subject from being exposed to radiation. Additionally, floor-standing X-ray protective equipment and ceiling-suspended X-ray protective equipment are known. However, both floor-standing X-ray protective equipment and ceiling-suspended X-ray protective equipment have different installation positions depending on the movement of the top plate on which the subject is placed or the X-ray irradiation equipment. It takes time to readjust.

Japanese Patent Application Publication No. 2002-253547

One of the problems that the embodiments disclosed in this specification and the like are intended to solve is to provide an X-ray protective device that can be easily installed and that does not cause misalignment.

The X-ray protective device according to the embodiment includes a base, a shaft, and an X-ray protective sheet. The base is removably attached to the top plate. The shaft is attached to the base. The X-ray protection sheet is attached to the shaft.

FIG. 1 is a conceptual configuration diagram of an X-ray diagnostic apparatus in which an X-ray protective device according to an embodiment is installed. FIG. 2(a) is a schematic exploded view of the X-ray protective device, and FIG. 2(b) is a schematic diagram of the X-ray protective device attached to the accessory mounting rail. FIG. 3(a) is a schematic exploded view of the X-ray protector, and FIG. 3(b) is a schematic diagram of the X-ray protector attached to the top plate. 4(a) is a schematic diagram of the IVa-IVa cross section of FIG. 3(b), and FIG. 4(b) is a schematic diagram of the IVb-IVb cross section of FIG. 3(b). FIG. 5(a) is a schematic diagram of a unit connecting portion, FIG. 5(b) is a schematic diagram of a modification of the unit connecting portion 1c, and FIG. 5(c) is a schematic diagram of a unit connecting portion 1c. A schematic diagram showing a connected state. FIG. 6 is a schematic diagram illustrating an example of a sheet connecting portion of the X-ray protective equipment according to the second embodiment. FIG. 7 is a schematic diagram illustrating the bone portion of the X-ray protection sheet. FIG. 8 is a schematic diagram illustrating an example of a stop portion of the X-ray protective device according to the second embodiment. FIG. 9(a) is a schematic diagram of the X-ray protective equipment before the flexible shaft is curved, and FIG. 9(b) is a schematic diagram of the X-ray protective equipment with the flexible shaft curved. Figure 10(a) is a schematic diagram illustrating an example of an X-ray protective device in which the side of the X-ray protective sheet wound into a roll is fixed to a shaft, and Figure 10(b) is a schematic diagram illustrating an example of an FIG. 2 is a schematic diagram illustrating an example of an X-ray protective device in which a substantially central position of the upper part of an X-ray protective sheet is fixed to a shaft. FIG. 11 is a conceptual configuration diagram of an X-ray protective device that can automatically adjust the effective area of an X-ray protective sheet according to a third embodiment. FIG. 12(a) shows an installation example of a bellows-shaped X-ray protection sheet, and FIG. 12(b) shows an installation example of a roll-shaped X-ray protection sheet. FIG. 13(a) is a schematic diagram of an X-ray protective device to which an X-ray protective sheet having an adjustment member is attached, and FIG. 13(b) is a schematic diagram showing a method for adjusting the X-ray protective sheet using the adjustment member. . FIG. 14(a) is a schematic perspective view of an enema test, and FIG. 14(b) is a schematic diagram of a subject undergoing an enema test observed from the foot side. FIG. 15(a) is a schematic diagram showing an example of an X-ray protective sheet having a notch in a part of the sheet surface, and FIG. 15(b) is an example of an X-ray protective sheet having a notch in a part of the sheet surface. Schematic diagram showing.

Hereinafter, embodiments of the X-ray protective equipment will be described in detail with reference to the drawings. In each figure, the same elements are denoted by the same reference numerals, and redundant explanations will be omitted.

FIG. 1 is a conceptual configuration diagram of an X-ray diagnostic apparatus 100 in which an X-ray protective device 1 according to an embodiment is installed. As shown in FIG. 1, the X-ray diagnostic apparatus 100 includes a bed device 50, an imaging device 60, and a control device 70. The X-ray protective equipment 1 is removably attached to the bed device 50 of the X-ray diagnostic apparatus 100.

The imaging device 60 includes an X-ray generating section 61 and a movable X-ray aperture 62. The X-ray generating section 61 includes an X-ray tube that generates X-rays, and generates X-rays by applying a voltage from a high-voltage power source under the control of the control device 70.

The X-ray movable aperture 62 narrows down the X-ray irradiation range by sliding a plurality of aperture blades, for example, so that the X-rays are selectively irradiated onto the imaging region of the subject. Further, the diaphragm device adjusts the amount of X-ray irradiation applied to the subject by adjusting the opening degree of the diaphragm blades.

The X-ray detection section 63 is provided inside the bed device 50 and is installed at a position facing the X-ray generation section 61. The X-ray detection unit 63 includes a flat panel detector (FPD) and an analog to digital (A/D) converter. The FPD has a plurality of detection elements arranged two-dimensionally. Furthermore, the X-ray detection unit 63 for performing X-ray fluoroscopic imaging may include an X-ray TV camera. The A/D converter converts the time-series analog signal output from the FPD into a digital signal and transmits it to the control device 70. The control device 70 generates an X-ray image from the digital signal.

The control device 70 includes control circuits such as a processing circuit, a storage circuit, and an image processing circuit, and is responsible for controlling the entire X-ray diagnostic apparatus 100. Each of these control circuits is equipped with a processor, and the processor executes a program stored in a storage circuit, thereby realizing various functions. For example, the processor of the image processing circuit executes an image processing program stored in the storage circuit, generates an X-ray image, and displays it on a display (not shown).

The storage circuit has a configuration that includes a storage medium readable by the processor, such as a magnetic or optical recording medium or a semiconductor memory. Part or all of the program and data in the storage medium of the storage circuit may be downloaded by communication via an electronic network, or may be provided to the storage circuit via a portable storage medium such as an optical disk. Note that part or all of the information stored in the storage circuit is distributed and stored in at least one storage medium such as an external storage circuit or another storage circuit included in the X-ray diagnostic apparatus 100 (not shown), or It may be copied and stored.

The display is constituted by a general display output device such as a liquid crystal display or an OLED (Organic Light Emitting Diode) display, and displays an X-ray image under the control of the control device 70.

The bed device 50 includes a top plate 51, an accessory mounting rail 52, a bed raising/lowering section 64, a support base, and a top drive device disposed within the support base. A subject is placed on the top plate 51.

The support base supports the top plate 51 so as to be movable in the horizontal direction (Z-axis direction of the apparatus coordinate system). The top drive device moves the top 51 in the Z-axis direction of the device coordinate system. Further, the top plate driving device moves the top plate 51 in parallel to the Y-axis direction, and raises and lowers the top plate 51. Furthermore, the bed raising unit 64 raises and lowers the bed device 50. The bed device 50 is raised and lowered by rotating around the bed raising and lowering section 64 as a rotation axis. Raising and tilting means, for example, rotating the top plate 51 around the X axis in a direction such that the head of the subject placed on the top plate 51 is higher than the feet, thereby changing the angle of the top surface of the top plate 51 with respect to the floor. It is.

Hereinafter, in this specification, unless otherwise specified, the X-axis, Y-axis, and Z-axis of the apparatus coordinate system will be defined as follows. First, the vertical direction is the Y-axis, and the top plate 51 is arranged so that the normal direction of its upper surface is the Y-axis direction. The horizontal movement direction of the top plate 51 is the Z-axis, and the top plate 51 is arranged so that its longitudinal direction is the Z-axis direction. The X-axis is perpendicular to the Y-axis and the Z-axis.

The accessory attachment rail 52 is a rail provided on the side surface of the bed device 50. Accessory attachment rails 52 are provided on both sides of the bed device 50. Accessories of the X-ray diagnostic apparatus 100, such as a footrest, a controller, and a hand grip, are detachably attached to the accessory attachment rail 52, for example. These accessories are attached to the accessory attachment rail 52 so that they do not move from their attached positions, for example, even when the bed device 50 is moved or raised and lowered. Like these accessories, the X-ray protective equipment 1 is also removably mounted on the accessory mounting rail 52.

As shown in FIG. 1, a plurality of X-ray protectors 1 are attached to a bed device 50. Although FIG. 1 shows an example in which the X-ray protection sheet 12 is arranged on the upper surface side of the top plate 51, the X-ray protection sheet 12 may be attached to the lower side of the top plate 51. When the X-ray protective equipment 1 is attached to the lower side of the top plate 51, the lower body of the medical worker or the patient's caregiver will be affected by the X-rays emitted downward from the surface on which the subject is placed on the top plate 51. Radiation exposure can be reduced.

The X-ray protective device 1 includes a base 10, a shaft 11, and an X-ray protective sheet 12. The base 10 is detachably attached to the bed device 50. For example, the base 10 is removably attached to an accessory attachment rail 52 on the side surface of the top plate 51. Note that the base 10 can also be attached to a top plate where the accessory attachment rail 52 is not provided. For example, the base 10 may have a clamp structure that clamps and fixes the top plate 51, and may be detachably attached to the top plate 51.

Shaft 11 is attached to base 10. The X-ray protection sheet 12 is attached to the shaft 11.

The X-ray protection sheet 12 is made of a material that blocks X-rays, such as fiber, resin, rubber, or metal. Further, the X-ray protection sheet 12 may be a flexible sheet or a non-flexible sheet. That is, the X-ray protection sheet 12 may be made of any material as long as it has the function of blocking X-rays.

Hereinafter, the X-ray protective equipment 1 according to the first embodiment to the fourth embodiment will be described in detail with reference to FIGS. 2 to 15, respectively.

(First embodiment)
The first embodiment relates to an X-ray protective device 1 in which the position of an X-ray protective sheet 12 can be changed.

FIGS. 2(a) and 2(b) are schematic diagrams of the X-ray protective device 1 according to the first embodiment.

FIG. 2(a) schematically shows an exploded view of the X-ray protective device 1a. As shown in FIG. 2(a), the X-ray protective device 1a includes a base 10a, a shaft 11, and an X-ray protective sheet 12. The base 10a has a shaft insertion hole 14, and the shaft 11 is attached to the shaft insertion hole 14 of the base 10a.

An insertion section 21 is provided at the lower part of the shaft 11. The insertion portion 21 may have, for example, a protrusion that fixes the shaft 11 to the base 10a. Further, grooves may be provided on the surface of the insertion portion 21 and the wall of the shaft insertion hole 14, so that the shaft 11 can rotate relative to the base 10a like a screw. Further, the length of the shaft 11 may be adjustable depending on the length of the insertion portion 21 inserted into the shaft insertion hole 14.

The shaft 11 is attached to the base 10a so as to be rotatable in the direction of arrow A with the long axis of the shaft serving as a rotation axis 20. Thereby, the X-ray protection sheet 12 fixed to the shaft 11 can rotate around the rotation axis 20. In this way, by rotatably attaching the shaft 11 to the base 10a, the longitudinal direction of the X-ray protective sheet 12 (the direction perpendicular to the long axis of the shaft 11) becomes parallel to the short direction of the top plate 51. An X-ray protective device 1a can also be installed. Moreover, the X-ray protector 1a can also be installed so that the longitudinal direction of the X-ray protective sheet 12 is parallel to the longitudinal direction of the top plate 51. That is, the X-ray protector 1a can be installed so as to surround the outer periphery of the top plate 51.

In the following description, the direction perpendicular to the long axis of the shaft 11 in the X-ray protective sheet 12 is defined as the longitudinal direction of the X-ray protective sheet 12, and the direction perpendicular to the longitudinal direction of the X-ray protective sheet 12 (the shaft 11) is defined as the short direction of the X-ray protection sheet 12.

For example, when the base 10a is attached to the end of the accessory mounting rail 52 so that the position of the base 10a is at the corner of the top plate 51, the longitudinal direction of the X-ray protective sheet 12 is It can be arranged parallel to any direction. Thereby, the X-ray protection sheet 12 can reduce the exposure of medical personnel and caregivers who work not only on both sides of the subject but also on the head and feet sides.

The upper part of the X-ray protection sheet 12 is attached to a sheet holding section 17 via a sheet fixing section 13. For example, when the X-ray protective sheet 12 has flexibility, the sheet holding section 17 is a plate-shaped member that supports the sheet surface so that the X-ray protective sheet 12 does not bend under its own weight. The seat fixing part 13 is, for example, a screw. The X-ray protection sheet 12 is attached to the sheet holding section 17 via the sheet fixing section 13.

The sheet holding portion 17 is provided with an attachment hole 16 for attaching the X-ray protection sheet 12 to the shaft 11. Further, the shaft 11 has a seat attachment portion 15. The seat attachment portion 15 is, for example, a fastener such as a screw or a tap. As shown in FIG. 2(a), the seat attachment portion 15 may be provided on a plate-shaped protrusion provided on the shaft 11, or may be provided on the shaft 11 itself.

The X-ray protection sheet 12 is attached to the shaft 11 via an attachment hole 16 provided in the sheet holding portion 17 and a sheet attachment portion 15 provided in the shaft 11. In addition, when the X-ray protection sheet 12 is made of a material that does not bend under its own weight, the attachment holes 16 may be provided in the X-ray protection sheet 12 itself.

Further, the sheet holding portion 17 may be provided with a plurality of attachment holes 16. By changing the location of the attachment hole 16 attached to the sheet attachment portion 15, the attachment position of the X-ray protection sheet 12 to the shaft 11 can be changed. In this way, the installation position of the X-ray protective sheet 12 with respect to the shaft 11 can be changed, so that, for example, after installing the X-ray protector 1a in the longitudinal direction of the top plate 51, a subject can be placed on the top plate 51. The position of the X-ray protection sheet 12 can be adjusted according to the physique of the subject and the position placed on the top plate 51 as necessary. In this case, the X-ray shielding area by the X-ray protection sheet 12 can be adjusted more easily than when the base 10a is removed from the top plate 51 and reattached.

FIG. 2(b) schematically shows a state in which the base 10a of the X-ray protective equipment 1a is attached to the accessory mounting rail 52. As shown in FIG. 2(b), the base 10a has a shape that engages with a groove 53 provided in the accessory mounting rail 52. As shown in FIG. The base 10a is mounted so that its position can be changed in the longitudinal direction (Z-axis direction) of the top plate 51 by sliding it on the accessory mounting rail 52 in the direction of arrow B. By being able to change the position of the base 10a in this way, the installation position of the X-ray protective device 1a can be adjusted in accordance with the position where the subject is placed, the body shape of the subject, etc.

In FIGS. 2(a) and 2(b), the mounting position of the X-ray protective sheet 12 relative to the shaft 11 can be changed by changing the positions of the plurality of mounting holes 16 provided at the top of the X-ray protective sheet 12. Although an example has been shown, the position change of the X-ray protection sheet 12 is not limited to the example shown in FIGS. 2(a) and 2(b). For example, the position of the X-ray protective sheet 12 may be changed by attaching the X-ray protective sheet 12 slidably to the shaft 11.

FIGS. 3A and 3B are schematic diagrams illustrating an X-ray protective device 1b having a rail for an X-ray protective sheet according to the first embodiment.

FIG. 3(a) schematically shows an exploded view of the X-ray protective device 1b. As shown in FIG. 3(a), a seat rail 19 is provided at the upper part of the shaft 11. Furthermore, a rail guide 18 is provided at the upper end of the X-ray protection sheet 12. By sliding the rail guide 18 along the seat rail 19, the X-ray protection sheet 12 is attached so that its position can be changed in the longitudinal direction of the X-ray protection sheet 12 (in the direction of arrow C in FIG. 3(b)). .

Further, as shown in FIG. 3(a), a bearing 22 may be provided at the lower part of the shaft 11, and the shaft 11 may be rotatably attached to the base 10b.

FIG. 3(b) schematically shows a state in which the X-ray protective equipment 1b is attached to the top plate 51. As shown in FIG. 3(b), the base 10b of the X-ray protective device 1b has a clamp structure and is fixed with the top plate 51 sandwiched therebetween. The base 10b is mounted so that its position can be changed in the direction of arrow B. That is, the base 10b is attached to any position on the outer periphery of the top plate 51. Further, the base 10b has a fixture insertion hole 232, and may be fixed to the top plate 51 using the base fixture 23. The base fixture 23 is, for example, a screw. Note that, as shown in FIGS. 3(a) and 3(b), it is preferable that the attachment axis of the base fixture 23 to the base 10b and the attachment axis of the shaft 11 are separate.

FIG. 4(a) is a schematic diagram of the IVa-IVa cross section of FIG. 3(b).

As shown in FIG. 4(a), the insertion portion 21 at the lower end of the shaft 11 is inserted into the shaft insertion hole 14 provided in the base 10b. A bearing 22 is provided at one end of the insertion portion 21 on the top plate 51 side, and the shaft 11 is rotatably attached to the base 10b.

FIG. 4(b) is a schematic diagram of the IVb-IVb cross section in FIG. 3(b).

As shown in FIG. 4(b), the base 10b is attached so that the top plate 51 is sandwiched between the lower part of the base 10b and the base fixture 23. A cushion 231 may be provided between the base fixture 23 and the top plate 51 to prevent slipping or to protect the top plate 51. For example, a groove is provided in the inner wall of the fixture insertion hole 232 provided in the base 10b, and by screwing the base fixture 23 into the fixture insertion hole 232, the fastening force of the base fixture 23 causes the base 10b to be attached to the top plate. It is fixed at 51. Further, although FIGS. 4A and 4B show an example in which the base 10b is fixed to the top plate 51, the base 10b may be attached to the accessory mounting rail 52.

Although FIG. 4 shows an example of a clamp structure in which the top plate 51 or rails are sandwiched and fixed between the upper part of the base 10b and the base fixture 23, the present invention is not limited to this. Further, the base 10 does not need to be fixed to the top plate 51 or the accessory mounting rail 52 by screws. For example, the base 10 may have a structure in which the base 10 is fixed with the top plate 51 sandwiched therebetween by the force of a spring, such as a clip. Alternatively, a magnet may be provided on the base 10, and the base 10 may be fixed to the top plate 51 or the accessory mounting rail 52 by magnetic force.

According to the X-ray protector 1 according to the first embodiment, the X-ray protector 1 can be easily attached to and detached from the top plate 51. Furthermore, the X-ray protector 1 can be attached to a desired position on the outer periphery of the top plate 51. Further, a plurality of X-ray protectors 1 can be freely arranged side by side, and the X-ray protectors 1 can be arranged so that the entire outer periphery of the top plate 51 is surrounded by the X-ray protector sheet 12. Therefore, it is possible to reduce the exposure of medical personnel and caregivers who are on the head side or foot side of the subject. Furthermore, since the base 10 is fixed to the top plate 51, it is possible to prevent the base 10 from shifting due to movement of the top plate 51 or raising/lowering operations of the top plate 51.

In the first embodiment, an example was shown in which a plurality of X-ray protectors 1 can be installed side by side on the top plate 51, but the X-ray protectors 1 installed side by side may be connected to each other.

(Second embodiment)
The second embodiment relates to an X-ray protector 1 that can connect a plurality of X-ray protectors 1.

FIGS. 5(a) to 5(c) are schematic diagrams illustrating examples of unit connection portions of the X-ray protective equipment 1 according to the second embodiment.

FIG. 5(a) shows a schematic diagram of the unit connecting portion 1c. As shown in FIG. 5(a), the unit connecting portion 1c includes a connecting shaft 11c and a base 10a (connecting base). The connecting shaft 11c of the unit connecting portion 1c has two seat attachment portions 15. The seat attachment portion 15 may be provided on a plate-shaped projection provided on the movable attachment portion 24, or may be provided on the movable attachment portion 24 itself. The movable attachment part 24 can be repositioned in the longitudinal direction of the coupling shaft 11c, and is detachably attached to the coupling shaft 11c. By making the position at which the movable attachment part 24 is attached to the coupling shaft 11c adjustable in this way, the unit coupling part 1c can adjust the position of the sheet attachment part 15, and it is possible to attach a plurality of X-ray protection sheets 12. can.

FIG. 5(c) shows a schematic diagram of a state in which the unit connecting portion 1c connects two X-ray protectors 1a. As shown in FIG. 5(c), one end of the X-ray protective sheet 12 of the left X-ray protective device 1a is fixed to the shaft 11 of the left X-ray protective device 1a, and the other end is used for connecting the unit connecting portion 1c. It is fixed to the shaft 11c. Similarly, one end of the X-ray protective sheet 12 of the right X-ray protective device 1a is fixed to the shaft 11 of the right X-ray protective device 1a, and the other end is fixed to the connecting shaft 11c of the unit connecting portion 1c. In this way, the connecting shaft 11c has two sheet attachment parts 15, and two X-ray protection sheets 12 are attached at the same time.

Moreover, the movable attachment part 24 may be able to rotate about the long axis of the coupling shaft 11c as a rotation axis. By rotating the movable attachment part 24 about the long axis of the connecting shaft 11c as the rotation axis, the angle formed by the sheet surfaces of the X-ray protective sheets 12 of the two X-ray protective devices 1a becomes an angle other than 180 degrees. The respective X-ray protectors 1a may be arranged accordingly.

For example, a unit connecting portion 1c is installed at a corner of the top plate 51, two X-ray protectors 1a are connected via the unit connecting portion 1c, and the longitudinal direction of the X-ray protective sheet 12 is the long and short side of the top plate 51. Two X-ray protection sheets 12 can be attached to the hands so that they are parallel to each other. That is, the X-ray protection sheets 12 can be arranged so that the angle formed by the sheet surfaces of the two X-ray protection sheets 12 is 90 degrees.

In this way, by being able to connect a plurality of X-ray protectors 1, the X-ray protectors 1 can be installed over a wider range more efficiently than when arranging each X-ray protector 1 alone. Furthermore, since the X-ray protective sheet 12 is fixed to the shaft 11 in more places than when the X-ray protective device 1 is arranged alone, sagging and shaking of the X-ray protective sheet 12 can be prevented.

Note that the unit connecting portion 1c is not limited to the example shown in FIG. 5(a). FIG. 5(b) shows a schematic diagram of a unit connecting portion 1d that is a modification of the unit connecting portion 1c. The unit connecting portion 1d shown in FIG. 5(b) includes a base 10a, a connecting shaft 11d, a movable attachment portion 25, a movable attachment portion retaining portion 26, a retaining ring 27, a bearing 28, a retaining plate 29, and a plate set screw 30. has.

The connecting shaft 11d of the unit connecting portion 1d has a notch at an upper portion and a lower portion, respectively. Specifically, the shaft diameters of the upper and lower parts of the connecting shaft 11d are smaller than the shaft diameters of other parts of the connecting shaft 11d. A plurality of movable attachment portions 25 having protruding seat attachment portions are attached to a notch in the upper portion of the connecting shaft 11d. Moreover, the movable attachment part 25 is attached rotatably about the long axis of the connecting shaft 11d as a central axis.

For example, the X-ray protection sheet 12 may be attached to the connection shaft 11d by being inserted into the attachment hole 16 of the X-ray protection sheet 12 into a protruding sheet attachment portion of the movable attachment portion 25.

The movable attachment portion retainer 26 is attached to the upper end of the connecting shaft 11d. The movable attachment part retainer 26 has, for example, a protrusion that is the same as or longer than the shaft diameter of the movable attachment part 25. The protrusion of the movable attachment portion retainer 26 is attached to the connection shaft 11d so as to press the upper end of the movable attachment portion 25 vertically downward, thereby preventing the movable attachment portion 25 from falling off from the connection shaft 11d.

In addition, in FIG. 5(b), the movable attachment portion retainer 26 is attached to the upper end of the connecting shaft 11d with a screw, but the movable attachment portion retainer 26 is attached to a cap that covers the upper end of the connecting shaft 11d. It may be.

The retaining ring 27 is attached to a notch provided in the lower part of the connecting shaft 11d, and prevents the connecting shaft 11d from coming off from the base 10a.

The bearing 28 is attached to the lower end of the connecting shaft 11d, and fixes the connecting shaft 11d to the base 10a. Further, the bearing 28 is, for example, a bearing. By means of the bearing 28, the connecting shaft 11d is rotatably attached to the base 10a with the long axis of the connecting shaft 11d as the rotation axis.

The retaining plate 29 and the plate set screw 30 are members that cover the lower end of the connecting shaft 11d so that the connecting shaft 11d does not fall off the base 10a.

Note that the unit connecting portions 1c and 1d shown in FIGS. 5(a) to 5(c) are merely examples, and the present invention is not limited to this example. The unit connecting portion may have any configuration as long as it has at least a shaft 11, a base 10, and a sheet attachment portion 15 to which two X-ray protection sheets 12 are attached at the same time.

Note that the connecting member of the X-ray protective equipment 1 is not limited to a unit connecting portion. The X-ray protective sheet 12 itself may be connected by a sheet connecting portion 32 provided on the X-ray protective sheet 12.

FIG. 6 is a schematic diagram illustrating an example of the sheet connecting portion 32 of the X-ray protective equipment 1e according to the second embodiment.

As shown in FIG. 6, the X-ray protective sheet 12 of the X-ray protective device 1e has a sheet connecting portion 32. The sheet connecting portion 32 is provided, for example, at one end of the shorter side of the X-ray protection sheet 12 that is not fixed to the shaft 11.

The sheet connecting portion 32 is composed of members such as buttons, hooks, hook-and-loop fasteners, and magnets. For example, when the sheet connecting part 32 is a hook-and-loop fastener, a hook surface is provided at one end of the short side of the X-ray protection sheet 12 and a loop surface is provided at the other end, so that the hook surface of one X-ray protection sheet 12 and the other X-ray By sequentially attaching the loop surfaces of the protective sheets 12, a plurality of X-ray protective sheets 12 can be connected in succession. In addition, a plurality of sheet connecting parts 32 may be attached to the short side of the X-ray protection sheet 12 at positions separated by a predetermined distance along the short side direction, or they may be attached continuously to one surface of the short side. It's okay to be hit.

Note that the sheet connecting portion 32 only needs to be able to connect the two X-ray protective sheets 12, and may be a member such as a clip that holds the two X-ray protective sheets 12 between them.

By providing the sheet connecting portion 32 on the X-ray protective sheet 12 in this manner, a plurality of X-ray protective sheets 12 can be connected more easily. Further, by connecting a plurality of X-ray protection sheets 12 in succession without providing a shaft 11 for connection, the effective area of the X-ray protection sheets 12 can be easily expanded.

FIG. 7 is a schematic diagram illustrating an example of the bone portion 31 of the X-ray protection sheet 12.

As shown in FIG. 7, the X-ray protective sheet 12 of the X-ray protective device 1f has a rib portion 31 that prevents the sheet surface from deflecting. The bone portion 31 may be provided in the longitudinal direction of the sheet surface of the X-ray protection sheet 12, or may be provided in the lateral direction. A plurality of bone parts 31 may be provided on the X-ray protection sheet 12. The bone portion 31 may be provided diagonally on the X-ray protection sheet 12. The bone portion 31 may have any form as long as it can prevent the sheet surface of the X-ray protection sheet 12 from deflecting.

Furthermore, in order to prevent the X-ray protective sheet 12 from bending, the X-ray protective sheet 12 may be made of a material that does not easily bend, instead of the bone portions 31. For example, the X-ray protection sheet 12 may be made of a non-flexible material such as a thin resin plate having an X-ray shielding function or a thin metal plate having an X-ray shielding function.

In FIG. 7, an example is explained in which the bone portions 31 are provided in the plane of the X-ray protective sheet 12 to prevent the sheet surface from deflecting. is not limited to.

FIG. 8 is a schematic diagram illustrating an example of the stop portion 34 of the X-ray protective device 1g according to the second embodiment.

As shown in FIG. 8, the X-ray protective device 1g has a stop portion 34 at the bottom of the X-ray protective sheet 12. The upper part of the X-ray protection sheet 12 is attached to the shaft 11, and the lower part of the X-ray protection sheet 12 is attached to the shaft 11 via the stop part 34.

The stop portions 34 are provided at both ends of the string portion 33. The stop portion 34 is composed of members such as buttons, hooks, hook-and-loop fasteners, and magnets. The string portion 33 is made of a flexible material. Further, the string portion 33 may be made of an elastic material such as rubber.

The stop portion 34 is attached by sandwiching the lower part of the X-ray protection sheet 12. For example, when the stop portion 34 is a snap button, one end of the string portion 33 is attached to the X-ray protection sheet 12, and a recessed portion of the snap button is attached to the portion where the string portion 33 and the X-ray protection sheet 12 overlap. A convex portion of a button is attached to the other end of the string portion 33. The lower end of the X-ray protection sheet 12 is fixed to the shaft 11 by fitting the convex part and the concave part of the snap button.

Furthermore, the lower part of the X-ray protection sheet 12 is fixed to the shaft 11 by wrapping the string portion 33 having the stopper portion 34 around the shaft 11 . For example, when the string portion 33 is made of rubber, the lower part of the X-ray protection sheet 12 is fixed to the shaft 11 due to the elastic force of the string portion 33 in addition to the frictional force generated between the string portion 33 and the shaft 11 .

Although FIG. 8 shows an example having a string part 33 and a stopper part 34, the X-ray protection sheet 12 can be fixed to the shaft 11 by tying the string provided at the bottom of the X-ray protection sheet 12 to the shaft 11. may be done. In this way, as long as the lower part of the X-ray protection sheet 12 can be fixed to the shaft 11, the stop portion 34 may have any form.

By fixing the lower part of the X-ray protective sheet 12 to the shaft 11, in addition to the deflection of the sheet surface of the X-ray protective sheet 12, it is possible to prevent the X-ray protective sheet 12 from swinging. Furthermore, when the top plate 51 is raised or lowered, the lower end of the X-ray protection sheet 12 can be prevented from sagging in the vertical direction. Furthermore, the X-ray protective equipment 1g having the stop portion 34 can reduce the exposure of medical workers and caregivers even when the top plate 51 is raised and lowered, in the same way as when the top plate 51 is not raised and lowered.

Although FIGS. 1 to 8 illustrate an example in which the sheet surface of the X-ray protection sheet 12 is provided perpendicularly to the upper surface of the top plate 51, the present invention is not limited to this example.

FIGS. 9A and 9B are schematic diagrams illustrating an example of an X-ray protective device 1h having a flexible shaft 35 according to the second embodiment. FIG. 9(a) is a schematic diagram of the X-ray protective device 1h before the flexible shaft 35 is bent. Moreover, FIG.9(b) is a schematic diagram of the X-ray protective equipment 1h which curved the flexible shaft 35.

As shown in FIGS. 9(a) and 9(b), the X-ray protective equipment 1h has a flexible shaft 35 that is flexible and reversible. The flexible shaft 35 has flexibility and can be freely bent, and can maintain the shape after being bent into a desired shape. Moreover, the flexible shaft 35 has reversibility and can be easily returned to the shape before being bent.

Moreover, the X-ray protection sheet 12 has flexibility and curves along the shape of the flexible shaft 35. For example, as shown in FIG. 9(a), when the longitudinal end of the X-ray protective sheet 12 is cylindrical, the flexible shaft 35 is inserted into this cylindrical portion, and the X-ray protective sheet 12 is attached to the flexible shaft 35. With such an attachment method, as shown in FIG. 9(b), when the flexible shaft 35 curves, the X-ray protection sheet 12 deforms according to the shape of the flexible shaft 35.

In addition, in FIGS. 9(a) and 9(b), the flexible shaft 35 is inserted into the cylindrical holes provided at both ends of the X-ray protective sheet 12, so that the flexible shaft 35 is inserted into the X-ray protective sheet 12. An example is shown in which it is installed so that it is covered by the However, the present invention is not limited to the examples shown in FIGS. 9(a) and 9(b). For example, by providing the stop portions 34 shown in FIG. 8 at multiple locations on the short side of the X-ray protective sheet 12 and securing the X-ray protective sheet 12 to the flexible shaft 35 at multiple locations, the X-ray protective sheet 12 can be attached to the flexible shaft 35. It may be possible to deform the shape according to the curvature of 35. As described above, as long as the X-ray protective sheet 12 is attached to the flexible shaft 35 so as to be deformable according to the shape of the flexible shaft 35, the method of attaching the X-ray protective sheet 12 is not limited.

By having the flexible shaft 35, the X-ray protective device 1h can three-dimensionally cover the subject with the X-ray protective sheet 12. As a result, X-rays are emitted not only from the sides of the subject placed on the top plate 51, but also from the surface of the subject that is in contact with the top surface of the top plate 51 and the surface of the subject opposite to this surface. This can reduce the exposure of medical workers and caregivers to X-rays. In addition, when attaching the X-ray protection device 1 to the side surface of the top plate 51, the upper part of the X-ray protection sheet 12 (the side opposite to the part where the shaft 11 connects to the base 10) is attached to the top surface side of the top plate 51. By bending, it becomes easier for a medical worker who stands on the side of the top plate 51 to perform medical treatment on a subject to approach the treatment area of the subject.

In addition, in FIGS. 9(a) and 9(b), the flexible shaft 35 is provided, and the X-ray protective sheet 12 is curved toward the upper surface side of the top plate 51, so that the sheet surface of the X-ray protective sheet 12 and the top plate Although the X-ray protective device 1h that can make the angle with the upper surface of the X-ray protector 51 variable is illustrated, the present invention is not limited to this example. For example, an angle adjustment section may be provided in the lower part or middle part of the shaft 11 so that the angle of the shaft 11 with respect to the top plate 51 can be adjusted to a desired angle. In this way, if the X-ray protective sheet 12 is installed so that the angle between the top surface of the top plate 51 and the sheet surface of the X-ray protective sheet 12 is an angle other than 90 degrees, the same effect as the X-ray protective equipment 1h can be obtained. You can get .

In this way, the second embodiment has the same effects as the first embodiment. Furthermore, in the second embodiment, a plurality of X-ray protection devices 1 can be connected, and the X-ray protection sheet 12 can be efficiently installed on the top plate 51. Furthermore, the effective area of the X-ray protection sheet 12 can be easily expanded. Note that the effective area here refers to the area of the sheet surface of the X-ray protection sheet 12 that can block X-rays. Furthermore, it has a structure that prevents the X-ray protection sheet 12 from bending or drooping, so that even if the top plate 51 is raised or lowered, it can be used without getting in the way. Further, even when the top plate 51 is raised and lowered, the exposure of medical personnel and caregivers can be reduced.

In the second embodiment, a case has been described in which the effective area of the X-ray protective sheet 12 is increased by connecting the X-ray protectors 1, but the size of the effective area of the X-ray protective sheet 12 can be adjusted to a desired size. It would be nice if it could be adjusted.

(Third embodiment)
The third embodiment relates to an X-ray protective device 1 in which the size of the effective area of the X-ray protective sheet 12 is adjustable.

FIGS. 10(a) and 10(b) are schematic diagrams illustrating an example of an X-ray protective device 1 having an X-ray protective sheet 12 that can be wound into a roll according to a third embodiment.

FIG. 10A is a schematic diagram illustrating an example of an X-ray protective device 1j in which one side of an X-ray protective sheet 12 wound into a roll is fixed to a shaft 11. As shown in FIG. 10(a), the X-ray protective device 1j includes a base 10b, a shaft 11, a roll shaft fixing part 36, a roll shaft 37, a drawer adjustment part 38, and a drawer part 39. The X-ray protection sheet 12 is attached to the roll shaft 37 at one end and to the drawer portion 39 at the other end. The X-ray protection sheet 12 is configured to be able to be wound around a roll shaft 37. That is, the roll shaft 37 is a winding portion of the X-ray protection sheet 12. The X-ray protection sheet 12 wound around the roll shaft 37 is pulled out in the direction of arrow E.

Specifically, when the drawer section 39 or the drawer adjustment section 38 is moved downward, the roll shaft 37 rotates in the direction of arrow F around the rotation axis 40. As a result, the X-ray protective sheet 12 wound into a roll is pulled out from the roll shaft 37, and the effective area of the X-ray protective sheet 12 becomes larger. On the other hand, when the roll shaft 37 is rotated in the direction opposite to the arrow F, the X-ray protection sheet 12 is wound around the roll shaft 37, and the effective area of the X-ray protection sheet 12 becomes smaller. In this way, by changing the amount of winding of the X-ray protective sheet 12 around the roll shaft 37, the size of the effective area of the X-ray protective sheet 12 can be freely adjusted.

A drawer adjustment section 38 provided at one end of the drawer section 39 on the shaft 11 side is fixed to the shaft 11 at a position where the X-ray protection sheet 12 is pulled out. Note that the drawer adjustment section 38 is attached so as to slide in the longitudinal direction of the shaft 11, and may slide along the shaft 11 together with the drawer section 39. The drawer adjustment section 38 may have any structure as long as it can fix the drawer section 39 to the shaft 11 after adjusting the effective area of the X-ray protection sheet 12. Further, the roll shaft fixing portion 36 to which the roll shaft 37 is fixed may be slidable in the longitudinal direction of the shaft 11.

Note that the winding of the X-ray protection sheet 12 onto the roll shaft 37 is not limited to manual operation. For example, it may be possible to perform this automatically using a mainspring spring provided on the roll shaft 37. By providing a spiral spring on the roll shaft 37, the X-ray protection sheet 12 is pulled out when the drawer part 39 is pulled, and the X-ray protection sheet 12 is fixed at the position where the drawer part 39 is pulled out. Further, when the pull-out portion 39 is pulled again with the X-ray protective sheet 12 pulled out, the X-ray protective sheet 12 is automatically wound around the roll shaft 37 by the mainspring spring. If the size of the effective area of the X-ray protective sheet 12 can be adjusted by winding the X-ray protective sheet 12 around the roll shaft 37 and pulling it out in this way, then the method for winding the X-ray protective sheet 12 is as follows. Any aspect may be used.

By making the X-ray protection sheet 12 windable into a roll in this way, the size of the effective area of the X-ray protection sheet 12 can be changed to a desired size. Further, when in use, the X-ray protective sheet 12 can be unfolded, while when not in use, the X-ray protective sheet 12 can be rolled up and made compact.

FIG. 10(b) is a schematic diagram illustrating an example of an X-ray protective device 1k in which a substantially central position of the upper portion of the X-ray protective sheet 12 wound into a roll is fixed to the shaft 11. FIG. 10(b) shows an X-ray protective device 1k in which the sheet surface of the X-ray protective sheet 12 pulled out from the roll shaft 43 can rotate around the rotation axis 20 of the shaft 11. The X-ray protective equipment 1k has a base 10a, a shaft 11, a frame attachment part 41, a frame 42, a roll shaft 43, and a drawer part 39.

The frame attachment part 41 is attached to the shaft 11 so that its position can be changed in the longitudinal direction of the shaft 11. That is, the frame attachment portion 41 is attached to the shaft 11 so as to be slidable in the longitudinal direction. Further, the frame attachment portion 41 supports the frame 42.

The frame 42 is attached to the frame attachment part 41 so as to be slidable in a direction perpendicular to the long axis of the shaft 11. Further, the frame attachment portion 41 supports a roll shaft 43 on which the X-ray protection sheet 12 is wound.

The X-ray protection sheet 12 is taken in and out in the direction of arrow E. One end of the X-ray protection sheet 12 is attached to the roll shaft 43, and the other end is attached to the drawer portion 39. That is, the roll shaft 43 is a winding portion of the X-ray protection sheet 12. When the pull-out portion 39 of the X-ray protective sheet 12 wound around the roll shaft 43 is pulled, the roll shaft 43 rotates in the direction of arrow F around the rotating shaft 40, and the X-ray protective sheet 12 is pulled out from the roll shaft 43. It will be done. On the other hand, when the roll shaft 43 rotates about the rotating shaft 40 in the direction opposite to the arrow F, the X-ray protection sheet 12 is wound around the roll shaft 43.

Note that as the shaft 11 rotates in the direction of arrow A around the rotation axis 20, the frame attachment portion 41, frame 42, and roll shaft 43 rotate together around the rotation axis 20 of the shaft 11. Thereby, the sheet surface of the X-ray protection sheet 12 can be rotated around the rotation axis 20.

FIG. 10 shows an example in which the X-ray protection sheet 12 wound into a roll is pulled out and the size of the effective area of the X-ray protection sheet 12 is manually adjusted. However, the size of the effective area of the X-ray protection sheet 12 may be adjusted automatically.

FIG. 11 is a conceptual configuration diagram of an X-ray protective device 1m that can automatically adjust the effective area of the X-ray protective sheet 12 according to the third embodiment.

As shown in FIG. 11, the X-ray protective equipment 1m includes a base 10a, a shaft 11m, a roll shaft 43, an adjustment section 44, and a sensor 45.

The roll shaft 43 is a winding section that winds up the X-ray protection sheet 12 into a roll. The adjustment unit 44 includes a motor, a power supply, and a processing circuit (not shown). The rotating shaft of the motor is wound around a roll shaft 43. The motor rotates by receiving power from a power source. The motor rotates the roll shaft 43 in the direction of arrow F, and the X-ray protection sheet 12 is wound around the roll shaft 43. On the other hand, when the motor is rotated in the reverse direction, the roll shaft 43 rotates in the direction opposite to the arrow F, and the X-ray protective sheet 12 is sent out from the roll shaft 43.

The processing circuit includes a processor and memory. The processor processes the signals from the sensor 45 by executing a program stored in the memory, and centrally controls the operation of the motor, such as the operating time and direction of rotation of the motor.

The sensor 45 measures the distance from the roll shaft 43 attached above the shaft 11m to the top surface of the top plate 51. Note that the sensor 45 may be any sensor that can measure the distance between the roll shaft 43 and the top plate 51. Further, the sensor 45 may detect the position of the adjustment portion 44 in the longitudinal direction of the shaft 11m instead of the distance between the roll shaft 43 and the top plate 51.

The processing circuit of the adjustment unit 44 determines the size of the effective area of the X-ray protective sheet 12 based on the signal detected by the sensor 45. For example, the processing circuit determines the amount by which the X-ray protection sheet 12 is pulled out based on the distance between the roll shaft 43 and the top plate 51 detected by the sensor 45. Here, the amount of pull-out of the X-ray protective sheet 12 refers to the length of the X-ray protective sheet 12 in the transverse direction (direction parallel to the shaft 11) from the roll shaft 43 of the X-ray protective sheet 12 to the pull-out part 39. That's true.

Further, the processing circuit operates the motor according to the amount of the X-ray protective sheet 12 to be pulled out, and draws out or winds up the X-ray protective sheet 12. The memory of the adjustment unit 44 stores the current amount of extraction of the X-ray protective sheet 12, and the processing circuit adjusts the direction of rotation of the motor and the amount of extraction according to the difference between the current amount of extraction and the calculated amount of extraction. Determine the motor rotation time.

Note that the sensor 45 may measure the distance between the drawer part 39 and the top plate 51, and the processing circuit may control the motor so that the distance between the drawer part 39 and the top plate 51 becomes zero.

Moreover, the adjustment part 44 is attached so that its position can be changed in the longitudinal direction of the shaft 11m. Furthermore, the shaft 11m may be configured to be expandable and retractable in the longitudinal direction, and the length of the shaft 11m may be adjustable.

In this way, by automatically pulling out the X-ray protective sheet 12 wound into a roll from the roll shaft 43 according to the length from the top plate 51 to the roll shaft 43, the effective area of the X-ray protective sheet 12 can be adjusted. The size can be adjusted automatically. Therefore, it is possible to save the effort of adjusting the size of the effective area of the X-ray protection sheet 12 after adjusting the length of the shaft 11m and the position of the adjustment section 44. Further, it is possible to prevent a gap from forming between the top plate 51 and the X-ray protection sheet 12.

10 and 11, an example of the X-ray protective device 1 has been described in which the size of the effective area of the X-ray protective sheet 12 can be adjusted by winding the X-ray protective sheet 12 into a roll. However, the manner in which the X-ray protection sheet 12 is wound is not limited to a roll. For example, instead of being rolled, the X-ray protection sheet 12 may be folded into a bellows shape.

10 and 11 show an example in which the effective area of the X-ray protective sheet 12 is changed by moving the drawer part 39 in the direction of arrow E (long axis direction of the shaft 11). The drawing direction is not limited to the longitudinal direction of the shaft 11.

FIGS. 12(a) and 12(b) are schematic diagrams illustrating an installation example of the X-ray protective equipment 1 according to the third embodiment.

12(a) and 12(b), unlike FIGS. 10 and 11, the effective area of the X-ray protection sheet 12 can be adjusted by moving the drawer part 39 in a direction perpendicular to the longitudinal direction of the shaft 11. An example is shown.

FIG. 12(a) shows an example of installing a bellows-shaped X-ray protection sheet 12p. As shown in FIG. 12(a), the X-ray protective device 1p includes a base 10a, a shaft 11, and an X-ray protective sheet 12p folded into a bellows shape. The X-ray protective device 1p has two bases 10a and two shafts 11, and both ends of an X-ray protective sheet 12p folded into a bellows shape are attached to the two shafts 11, respectively. The base 10a is attached to the top plate 51 so that its position can be changed in the longitudinal direction. For example, by sliding the position of one base 10a in the longitudinal direction of the top plate 51, the bellows-shaped X-ray protection sheet 12p expands and contracts, and the size of the effective area of the X-ray protection sheet 12p can be adjusted.

By forming the X-ray protective sheet 12p into a bellows shape, it is possible to prevent the X-ray protective sheet 12p from bending or bending. Further, by expanding and contracting the bellows-shaped X-ray protective sheet 12p, the size of the effective area of the X-ray protective sheet 12p can be easily adjusted.

FIG. 12(b) is an example of installing a roll-shaped X-ray protection sheet 12q. FIG. 12(b) shows an X-ray protective device 1p having an X-ray protective sheet 12q wound into a roll instead of the X-ray protective sheet 12p folded into a bellows shape. In the example of FIG. 12(b), one shaft 11 has a winding part 46, and the other shaft 11 functions as a drawer part for the X-ray protection sheet 12q wound into a roll. A base 10a to which a shaft 11 functioning as a drawer is attached is attached to the top plate 51 so that its position can be changed in the longitudinal direction. By sliding the base 10a in the longitudinal direction of the top plate 51, the X-ray protection sheet 12q wound into a roll is pulled out or wound up. Thereby, the size of the effective area of the X-ray protection sheet 12p can be adjusted.

In this way, the X-ray protective equipment 1 having the X-ray protective sheet 12 in the form of a roll or bellows allows the size of the effective area of the X-ray protective sheet 12 to be easily adjusted when in use, and to protect against X-rays when not in use. It can be made compact by shrinking the protective sheet 12.

10 to 12 show examples in which the size of the effective area of the X-ray protective sheet 12 is adjusted by expanding and contracting the roll-shaped or bellows-shaped X-ray protective sheet 12. However, changing the size of the effective area of the X-ray protective sheet 12 is However, the method of expanding and contracting the X-ray protection sheet 12 is not limited.

FIGS. 13(a) and 13(b) are schematic diagrams illustrating another method of adjusting the effective area of the X-ray protection sheet 12 according to the third embodiment.

FIG. 13(a) is a schematic diagram of an X-ray protective device 1r to which an X-ray protective sheet 12 having an adjustment member is attached. As shown in FIG. 13(a), the X-ray protection sheet 12 of the X-ray protection device 1r has an adjustment member 47 and an adjustment member 48, and the size of the effective area of the X-ray protection sheet 12 can be adjusted. is attached to the shaft 11.

FIG. 13(b) is a schematic diagram showing a method of adjusting the X-ray protection sheet 12 using the adjustment member. As shown in FIG. 13(b), the adjustment member 47 and the adjustment member 48 are combined to fix the X-ray protection sheet 12 in a folded state. In this way, the adjusting member 47 and the adjusting member 48 bend a part of the X-ray protective sheet 12 and adjust the size of the effective area of the X-ray protective sheet. Note that the adjustment member 47 and the adjustment member 48 are composed of members such as buttons, hooks, hook-and-loop fasteners, and magnets. As shown in FIG. 13(b), they may be provided at both ends of the lower part of the X-ray protection sheet 12, or three or more may be provided at the lower part of the X-ray protection sheet 12 at predetermined intervals. Note that the adjustment member may be any member as long as it can maintain the changed size of the effective area of the X-ray protection sheet 12.

Alternatively, a cut may be made in the lower part of the X-ray protection sheet 12 along the longitudinal direction of the shaft 11, and an adjustment member may be provided in each cut region. By doing so, it may be possible to adjust the size of each region separated by the cut in the X-ray protection sheet 12. That is, by flipping up (folding) and fixing the areas separated by the notches with the adjusting member, the shape of the rectangular X-ray protection sheet 12 can be changed to the polygonal X-ray protection sheet 12 having the notches. Can be transformed. In this way, for example, when there is a treatment area on the torso of the subject, the subject's arms and legs can be brought out from the part adjusted by the above-mentioned adjustment member. This makes it possible to reduce radiation exposure to the arms and legs of the subject. Furthermore, the X-ray protection sheet 12 can be installed on the top plate 51 so as to cover only the treatment area.

In this way, the third embodiment has the same effects as the first and second embodiments. Furthermore, in the third embodiment, the size of the effective area of the X-ray protection sheet 12 can be freely adjusted.

Although the third embodiment shows an example in which the size of the effective area of the X-ray protection sheet 12 is variable, the X-ray protection sheet 12 may have a desired shape from the beginning.

(Fourth embodiment)
The fourth embodiment relates to an X-ray protective device 1 having an X-ray protective sheet 12 shaped according to a subject.

FIGS. 14(a) and 14(b) are schematic diagrams illustrating an enema test.

FIG. 14(a) is a schematic perspective view of an enema test. The enema test is a test in which a contrast medium is injected into the digestive tract from the anus of the subject P while the subject P is irradiated with X-rays, and the digestive tract is photographed. At this time, the top plate 51 is raised and lowered in order to attach a contrast medium to the wall of the digestive tract or to photograph a desired region.

The area to which X-rays are irradiated in the enema examination is the abdomen of the subject P. However, parts of the subject P other than the abdomen, such as the lower body of the subject and the parts above the abdomen, are exposed to secondary X-rays. Therefore, as shown in FIG. 14(a), by installing the X-ray protective device 1f so that the X-ray protective sheet 12 crosses the top plate 51, the exposure to the lower body of the subject P can be reduced.

FIG. 14(b) is a schematic diagram of a subject P undergoing an enema test observed from the foot side (from arrow G in FIG. 14(a)). As shown in FIG. 14(b), even if the X-ray protector 1f is installed across the top plate 51, the subject P is placed between the X-ray protection sheet 12 and the top plate 51. There is a gap in the area, and it is not possible to reduce radiation exposure from the gap.

Therefore, by making the shape of the X-ray protective sheet 12 suitable for the subject P, it is possible to provide an X-ray protective device that can reduce radiation exposure to areas other than the treatment area of the subject P through the gap.

15(a) and 15(b) are schematic diagrams illustrating the shape of the X-ray protection sheet 12 according to the fourth embodiment.

FIG. 15(a) shows an example of an X-ray protection sheet 12s having a notch in a part of the sheet surface. As shown in FIG. 15(a), the X-ray protection sheet 12s has a fan-shaped notch in the lower part of the sheet surface (on the upper surface side of the top plate 51). By installing the X-ray protective device 1s with the outer edge of the notch along the body of the subject P, the gap between the X-ray protective sheet 12 and the top plate 51 can be made as small as possible.

FIG. 15(a) shows an example of the X-ray protective sheet 12s shaped to follow the waist of the subject P placed on the top plate 51 in a recumbent position. is not limited to FIG. 15(a). The X-ray protection sheet 12s has a notch shaped according to the posture and body part of the subject P.

FIG. 15(b) shows an example of an X-ray protection sheet 12t having a notch in a part of the sheet surface. As shown in FIG. 15(b), the X-ray protection sheet 12t may have a plurality of sheet surfaces 121t and 122t. The X-ray protection sheet 12t has a cut from one end of the short side of the X-ray protection sheet 12t along the longitudinal direction of the X-ray protection sheet 12t to the front of the opposite short side of the X-ray protection sheet 12t. Note that the position and length of the cut are not limited to the example shown in FIG. 15(b).

Moreover, this cut allows the seat surface 122t to rotate around the long axis of the shaft 11. By being able to orient part of the sheet surface in different directions in this way, it is not only possible to install the X-ray protective sheet 12t along with the body of the subject P, but also to prevent radiation exposure from multiple directions with one X-ray protective sheet 12t. can be reduced.

Note that the shape of the sheet surface 122t is not limited to a rectangle. Further, the rotation direction of the seat surface 122t is not limited to around the long axis of the shaft 11. Moreover, in order to prevent the seat surface 122t from being bent, the seat surface 122t may have a bone portion 31.

In this way, the fourth embodiment has the same effects as the third embodiment. Furthermore, since the X-ray protective sheet 12 has a notch shaped according to the posture and body part of the subject, the edge of the notch of the X-ray protective sheet 12 can be aligned with the body of the subject, and the X-ray protective equipment can be installed. This makes it possible to reduce exposure not only to medical personnel and assistants, but also to parts of the subject other than the treated part.

According to the X-ray protective device 1 of at least one embodiment described above, it is possible to provide the X-ray protective device 1 that can be easily installed and that does not cause positional shift.

The word "processor" used in the above description refers to, for example, a CPU (central processing unit), a GPU (Graphics Processing Unit), an application specific integrated circuit (ASIC)), a programmable logic device (e.g. , Simple Programmable Logic Device (SPLD), Complex Programmable Logic Device (CPLD), and Field Programmable Gate Array (FPGA). When the processor is, for example, a CPU, the processor realizes its functions by reading and executing a program stored in a storage circuit. On the other hand, when the processor is an ASIC, instead of storing the program in a storage circuit, the function corresponding to the program is directly incorporated into the processor circuit as a logic circuit.

Note that the processor may be configured by a single circuit or by a combination of multiple independent circuits. In the latter case, a separate memory may be provided for each of the plurality of circuits, or a single memory may store programs corresponding to the functions of the plurality of circuits.

Although several embodiments have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, substitutions, changes, and combinations of embodiments can be made without departing from the gist of the invention. These embodiments and their modifications are included within the scope and gist of the invention as well as within the scope of the invention described in the claims and its equivalents.

1... X-ray protective equipment 10... Base 11... Shafts 11c, 11d... Connection shaft 12... 35... Flexible shaft 45... Sensor 46... Winding section 50... Bed device 51... Top plate 52... Accessory mounting rail 60... Imaging device 100... X-ray diagnostic device

Claims (14)

A base that can be detachably attached to the top plate,
a shaft attached to the base;
an X-ray protection sheet attached to the shaft;
a seat rail on which the X-ray protection sheet is attached to the shaft so as to be repositionable in a direction perpendicular to the long axis of the shaft;
X-ray protective equipment with A base that can be detachably attached to the top plate,
a shaft attached to the base;
an X-ray protection sheet attached to the shaft;
a unit connection section consisting of a connection base and a connection shaft;
Equipped with
One end of the X-ray protection sheet is fixed to the connection shaft, and the other end of the X-ray protection sheet is fixed to the shaft.
X-ray protective equipment. A base that can be detachably attached to the top plate,
a shaft attached to the base;
an X-ray protection sheet attached to the shaft;
Equipped with
The X-ray protective sheet has a stop portion at the bottom of the X-ray protective sheet,
An upper part of the X-ray protective sheet is attached to the shaft, and a lower part of the X-ray protective sheet is attached to the shaft via the stop part.
X-ray protective equipment. A base that can be detachably attached to the top plate,
a shaft attached to the base;
an X-ray protection sheet attached to the shaft;
Equipped with
The X-ray protective sheet further includes a bone portion that prevents deflection of the X-ray protective sheet.
X-ray protective equipment. A base that can be detachably attached to the top plate,
a shaft attached to the base;
an X-ray protection sheet attached to the shaft;
Equipped with
The shaft is configured to be bendable.
X-ray protective equipment. A base that can be detachably attached to the top plate,
a shaft attached to the base;
an X-ray protection sheet attached to the shaft;
Equipped with
The shaft is configured to be bendable,
The X-ray protection sheet is curved along the shape of the shaft.
X-ray protective equipment. A base that can be detachably attached to the top plate,
a shaft attached to the base;
an X-ray protection sheet attached to the shaft;
Equipped with
The X-ray protection sheet is attached to the shaft so that the size of the effective area of the X-ray protection sheet can be adjusted by bending a part of the X-ray protection sheet.
X-ray protective equipment. A base that can be detachably attached to the top plate,
a shaft attached to the base;
an X-ray protection sheet attached to the shaft;
Equipped with
The X-ray protection sheet is attached to the shaft so that the size of the effective area of the X-ray protection sheet can be adjusted by folding it into a bellows shape.
X-ray protective equipment. A base that can be detachably attached to the top plate,
a shaft attached to the base;
an X-ray protection sheet attached to the shaft;
Equipped with
The shaft is expandable and contractible in the longitudinal direction of the shaft,
a winding unit that winds up the X-ray protection sheet into a roll;
a drawer part that pulls out the X-ray protective sheet wound up on the winding part and adjusts the size of the effective area of the X-ray protective sheet;
a sensor that measures the distance between the winding section and the top plate attached above the shaft;
an adjustment unit that automatically adjusts the size of the effective area of the X-ray protection sheet according to the distance detected by the sensor;
further having,
X-ray protective equipment. The X-ray protection sheet is rotatably attached to the shaft about the long axis of the shaft,
The X-ray protective device according to any one of claims 1 to 9 . The base is attached to the top plate so that its position can be changed in the longitudinal direction of the top plate.
The X-ray protective device according to any one of claims 1 to 10 . The base is removably attached to a rail provided on a side surface of the top plate.
The X-ray protective device according to any one of claims 1 to 11 . The X-ray protection sheet further includes a sheet connection part,
two X-ray protection sheets are connected via the sheet connection part,
The X-ray protective device according to any one of claims 1 to 12 . The X-ray protection sheet can be attached across the top plate, and has a notch in a part of the top plate side.
The X-ray protective device according to any one of claims 1 to 13 .

Images