CN108335772B - Protection device for be used for radiology department radioactive source - Google Patents
Protection device for be used for radiology department radioactive source Download PDFInfo
- Publication number
- CN108335772B CN108335772B CN201810428435.4A CN201810428435A CN108335772B CN 108335772 B CN108335772 B CN 108335772B CN 201810428435 A CN201810428435 A CN 201810428435A CN 108335772 B CN108335772 B CN 108335772B
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- plate
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- 230000002285 radioactive effect Effects 0.000 title claims abstract description 15
- 230000001681 protective effect Effects 0.000 claims abstract description 33
- 230000005855 radiation Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 2
- 206010011409 Cross infection Diseases 0.000 description 1
- 206010029803 Nosocomial infection Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 230000001575 pathological effect Effects 0.000 description 1
- 230000035790 physiological processes and functions Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F5/00—Transportable or portable shielded containers
- G21F5/06—Details of, or accessories to, the containers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Accommodation For Nursing Or Treatment Tables (AREA)
Abstract
The invention discloses a protective device for a radioactive source in radiology department, which comprises a protective curtain containing lead, a framework for supporting the protective curtain and a base, wherein the framework is movably arranged on the base and at least comprises a frame made of flexible positioning tubes, and the edge of the protective curtain is fixed with the frame. The protective device of the technical scheme of the invention can be placed in an operating room or an examination room with a radioactive source and used for protecting medical staff from being damaged by the radiation of the radioactive source, and the frame in the framework is made of flexible positioning hoses, so that the framework has deformability, the protective curtain arranged on the framework also has the function of deforming along with the framework, and can be deformed randomly along with the size of a space, so that the protective curtain is suitable for an unused shielding environment, is flexible and changeable in use, furthest protects the medical staff, and meanwhile, the framework and the base can be movably mounted through a structure similar to universal adjustment, so that the movable position of the protective curtain is further improved, and the protectable area is improved.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a protective device for a radioactive source in radiology department.
Background
The X-ray examination is used as a common medical diagnosis means in clinic at home and abroad, when the X-ray irradiates the human body, cells can be inhibited, destroyed and even necrotized, so that the organism is changed in physiological, pathological and biochemical aspects to different degrees, thus patients and medical staff need to make necessary protection in the X-ray examination or the operation process involving the assistance of rays, and the physiological function is prevented from being influenced by excessive X-ray irradiation.
Although protection modes such as a protective curtain with a lead-wearing protective clothing skirt, a scarf and the like or a fixed structure are generally adopted in the medical treatment process, the wearing protection modes are troublesome and easy to slip, the inspection of staff is affected, the working efficiency is low, and cross infection is easily caused by wearing the same protective clothing by a plurality of people; the medical care of radiology department is inconvenient to carry out medical care work in the wearing type protection mode, so that the protection function of the protection curtain is relied on for working, the protection curtain with the fixed structure is usually fixedly installed in a place and cannot move, is usually of a plate-shaped structure, cannot move and bend and deform, and is not flexible and changeable in use.
Disclosure of Invention
The invention aims to at least solve the defects in the prior art to a certain extent and provides a protective device for a radioactive source in radiology department.
In order to achieve the above object, the present invention provides a protection device for a radioactive source in radiology department, comprising a protection curtain containing lead, a framework for supporting the protection curtain, and a base, wherein the framework is movably installed on the base, at least comprises a frame made of flexible positioning tubes, and the edge of the protection curtain is fixed with the frame.
Preferably, the framework further comprises a grid-shaped supporting rib made of flexible positioning hoses, and the supporting rib is connected with the frame.
Preferably, the protective curtain is made of lead rubber and comprises a front protective curtain and a rear protective curtain which are respectively fixed on the front side and the rear side of the framework.
Preferably, the base comprises a bottom plate, a first pivoting plate, a second pivoting plate and a mounting seat, wherein the first pivoting plate and the second pivoting plate are semicircular arc plates and are arranged on the bottom plate in a mutually vertical and overlapped mode in a rotatable positioning mode, a first strip-shaped groove and a second strip-shaped groove are formed in the first pivoting plate and the second pivoting plate in an extending mode along the length direction, and the mounting seat is arranged at the intersection of the first strip-shaped groove and the second strip-shaped groove and can slide along the radian direction of the first pivoting plate or the second pivoting plate respectively; the rear side of skeleton is provided with stretches out the connecting piece of protection curtain, the connecting piece with the mount pad is connected.
Preferably, the mounting seat comprises an upper clamping piece and a lower clamping piece which are connected up and down relatively, the upper clamping piece comprises an upper clamping plate with a first central through hole, and a step is arranged at the upper end in the first central through hole; the lower clamping piece comprises a lower clamping plate with a second central through hole, a plurality of hooks extending upwards are uniformly arranged on the lower clamping plate along the edge of the second central through hole, and the hooks sequentially penetrate through the second strip-shaped groove, the first strip-shaped groove and enter the first central through hole to be connected with the step buckle, so that the upper clamping piece and the lower clamping piece are connected with each other and clamp the first pivoting plate and the second pivoting plate.
Preferably, a rotating shaft is arranged in the mounting seat in a pivotable manner along the vertical direction, the lower end of the rotating shaft penetrates through the first central through hole and then is rotatably positioned in the second central through hole, and the upper end of the rotating shaft is fixedly connected with one end, far away from the framework, of the connecting piece.
Preferably, the middle part of the rotating shaft is provided with a limit baffle ring at the upper end of the first central through hole, the part of the lower end penetrating out of the second central through hole is provided with an external thread, the external thread is connected with a fixing nut in a threaded manner, an annular groove is formed in the position between the limit baffle ring and the external thread, and an O-shaped rubber ring is arranged in the annular groove, so that the rotating shaft is positioned in a rotating manner between the second central through hole and the O-shaped rubber ring.
Preferably, the lower surface of the upper clamping plate and the upper surface of the lower clamping plate are spherical surfaces which are matched with the radian of the first pivoting plate and the radian of the second pivoting plate, and the upper surface of the lower clamping plate is provided with a guide groove for accommodating the second pivoting plate.
The protective device of the technical scheme of the invention can be placed in an operating room or an examination room with a radioactive source and used for protecting medical staff from being damaged by the radiation of the radioactive source, and the frame in the framework is made of the flexible positioning hose, so that the framework has deformability, the protective curtain arranged on the framework also has the function of deforming along with the framework, and can be deformed randomly along with the size of the space, so that the protective curtain is suitable for an unused shielding environment, is flexible and changeable in use, furthest protects the medical staff, and meanwhile, the framework and the base can be movably mounted through a structure similar to universal adjustment, so that the movable position of the protective curtain is further improved, and the protectable area is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a shielding device for a radiological source according to the present invention;
FIG. 2 is a schematic structural view of a skeleton in the present invention;
FIG. 3 is an exploded view of the base of the present invention;
fig. 4 is a schematic cross-sectional view of the base of the present invention.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below are exemplary and intended to illustrate the present invention and should not be construed as limiting the invention, and all other embodiments, based on the embodiments of the present invention, which may be obtained by persons of ordinary skill in the art without inventive effort, are within the scope of the present invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
A shielding device for a radiological source according to an embodiment of the present invention is described in detail below with reference to the accompanying drawings.
As shown in fig. 1 and 2, the shielding device for a radioactive source of radiology according to the embodiment of the present invention includes a shielding curtain 10 containing lead, a frame 20 for supporting the shielding curtain 10, and a base 30, the frame 20 being movably installed on the base 30, and including at least a frame 21 made of flexible positioning tubes, and edges of the shielding curtain 10 being fixed to the frame 21.
According to the protection device of the embodiment, the protection device can be placed in an operating room or an examination room with a radioactive source and used for protecting medical staff from being damaged by radiation of the radioactive source, and the frame 21 in the framework 20 is made of a flexible pipe capable of being positioned in a bending mode, so that the framework 20 has deformability, the protection curtain 10 arranged on the framework 20 also has the function of being deformed along with the framework 20, can be deformed randomly along with the size of a space, is suitable for an unused shielding environment, is flexible and changeable in use, protects the medical staff to the greatest extent, and can be movably installed between the framework 20 and the base 30 through a structure similar to universal adjustment, the movable position of the protection curtain 10 is further improved, and the protectable area is improved.
In addition, the protection device can be arranged into a portable structure, that is, the base 30 is provided with a clamping mechanism, the protection device can be fixed at any needed place by medical staff through the clamping mechanism for placement, and meanwhile, the protection curtain 10 can also prevent blood or other body fluid possibly occurring in the operation process from splashing, so that the medical staff is prevented from being infected by pathogens.
Specifically, the framework 20 further includes a supporting rib 22 formed by a flexible positioning hose in a grid shape, and the supporting rib 22 is connected with the frame 21. Therefore, when the protective curtain 10 is bent and deformed at the edge, the middle part of the protective curtain 10 can be supported by the supporting ribs 22, and the deformation capability of the protective curtain 10 is improved.
Further, the protective curtain 10 is made of lead rubber, and includes a front protective curtain and a rear protective curtain respectively fixed to the front and rear sides of the frame 20. Thereby enclosing the frame 20 between the front and rear curtains, making the appearance of the guard more attractive, and simultaneously, the front and rear curtains can be detached from the frame 20 for cleaning and sterilizing and replacement after the curtain 10 is contaminated.
In a preferred embodiment of the present invention, as shown in fig. 3 and 4, the base 30 includes a bottom plate 31, a first pivot plate 32, a second pivot plate 33, and a mounting seat 34, where the first pivot plate 32 and the second pivot plate 33 are semicircular arc plates and are rotatably positioned on the bottom plate 31 in an overlapping manner and perpendicular to each other, the first pivot plate 32 and the second pivot plate 33 are provided with a first bar-shaped groove 321 and a second bar-shaped groove 331 extending in a length direction, and the mounting seat 34 is mounted at an intersection of the first bar-shaped groove 321 and the second bar-shaped groove 331 and can slide along an arc direction of the first pivot plate 32 or the second pivot plate 33, respectively; the rear side of the framework 20 is provided with a connecting piece 23 extending out of the protective curtain 10, and the connecting piece 23 is connected with the mounting seat 34.
That is, the first pivoting plate 32 may perform a pivoting motion with respect to the axis of the bottom plate 31 in the front-rear direction and may be positioned at any angle during the motion, and the second pivoting plate 33 may perform a pivoting motion with respect to the axis of the bottom plate 31 in the left-right direction and may be positioned at any angle during the motion, so that the mounting seat 34 may be rotated in the front-rear, left-right direction by the driving of the first pivoting plate 32 and/or the second pivoting plate 33, so that the frame 20 mounted on the mounting seat 34 may be positioned at a plurality of angles with respect to the bottom plate 31 of the base 30, so that the protective curtain 10 may be adjusted to a position required by a medical staff for positioning.
Further, the mounting base 34 includes an upper clamping member 341 and a lower clamping member 342 which are connected in an up-down opposite manner, the upper clamping member 341 includes an upper clamping plate 3411 having a first central through hole 3412, and a step 3413 is disposed at an upper end in the first central through hole 3412; the lower clamping member 342 includes a lower clamping plate 3421 having a second central through hole 3422, the lower clamping plate 3421 is uniformly provided with a plurality of hooks 3423 extending upward along the edge of the second central through hole 3422, and the plurality of hooks 3423 sequentially penetrate through the second bar-shaped groove 331, the first bar-shaped groove 321 and enter the first central through hole 3412 to be in snap connection with the step 3413, so that the upper clamping member 341 and the lower clamping member 342 are connected to each other and clamp the first pivoting plate 32 and the second pivoting plate 33.
Specifically, the mounting seat 34 is capable of sliding relative to the first pivot plate 32 and the second pivot plate 33, and is positioned at the intersection of the first bar-shaped groove 321 and the second bar-shaped groove 331, that is, the mounting seat 34 slides in the first bar-shaped groove 321 and the second bar-shaped groove 331 when the mounting seat rotates to adjust the angle, and is positioned by using the damping structure between the first pivot plate 32 and the second pivot plate 33 and the bottom plate 31.
Further, a rotating shaft 35 is pivotally disposed in the mounting seat 34 along a vertical direction, the lower end of the rotating shaft 35 passes through the first central through hole 3412 and is rotatably disposed in the second central through hole 3422, and the upper end is fixedly connected with the end of the connecting member 23 away from the framework 20.
Specifically, a stop ring 351 is disposed in the middle of the rotating shaft 35 and is located at the upper end of the first central through hole 3412, an external thread 352 is disposed at a portion of the lower end penetrating out of the second central through hole 3422, a fixing nut 355 is screwed onto the external thread 352, an annular groove 353 is disposed in a position between the stop ring 351 and the external thread 352 of the rotating shaft 35, and an O-shaped rubber ring 354 is disposed in the annular groove 353, so that the rotating shaft 35 and the second central through hole 3422 are rotationally positioned through the O-shaped rubber ring 354.
That is, the rotation shaft 35 is installed by penetrating the center through holes of the upper clamping member 341 and the lower clamping member 342 from top to bottom, when the limit stop ring 351 is stopped at the upper end of the first center through hole 3412, the lower end of the rotation shaft 35 has the external thread 352 to protrude downwards from the second center through hole 3422, and the rotation shaft 35 is axially fixed on the mounting seat 34 by the fixing nut 355, so that the protection curtain 10 can be arbitrarily positioned at one angle by the rotation shaft 35 with 360 ° rotation around the central axis of the rotation shaft 35 and by the action of the O-shaped rubber ring 354. Of course, in other embodiments, the rotating shaft 35 may be fixedly connected to the mounting seat 34, and the connecting member 23 is rotatably connected to the rotating shaft 35, so long as the protection curtain 10 can rotate 360 ° around the central axis of the rotating shaft 35.
In some embodiments of the present invention, the lower surface of the upper clamping plate 3411 and the upper surface of the lower clamping plate 3421 are spherical surfaces adapted to the radian of the first pivoting plate 32 and the second pivoting plate 33, and the upper surface of the lower clamping plate 3421 is provided with a guide groove 3424 for accommodating the second pivoting plate 33. Specifically, the two guide grooves 3424 are symmetrically disposed with respect to the second central through hole 3422, so that after the upper clamping member 341 and the lower clamping member 342 are mutually connected and installed, two portions of the second pivoting plate 33 located in the width direction of the second bar-shaped groove 331 are respectively located in the two guide grooves 3424, so that the mounting seat 34 is smoother in performing angle adjustment.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (7)
1. A protective device for a radioactive source in radiology department, comprising a protective curtain containing lead, a framework for supporting the protective curtain, and a base, wherein the framework is movably arranged on the base and at least comprises a frame made of flexible positioning hoses, and the edge of the protective curtain is fixed with the frame;
the base comprises a bottom plate, a first pivoting plate, a second pivoting plate and a mounting seat, wherein the first pivoting plate and the second pivoting plate are semicircular arc-shaped plates and are arranged on the bottom plate in a mutually vertical and overlapped mode in a rotatable positioning mode, a first strip-shaped groove and a second strip-shaped groove are formed in the first pivoting plate and the second pivoting plate in an extending mode along the length direction, and the mounting seat is arranged at the intersection of the first strip-shaped groove and the second strip-shaped groove and can slide along the radian direction of the first pivoting plate or the second pivoting plate respectively; the rear side of the framework is provided with a connecting piece extending out of the protective curtain, and the connecting piece is connected with the mounting seat;
the first pivoting plate can perform pivoting movement relative to the axis of the bottom plate along the front-rear direction and can be positioned at any angle during movement, and the second pivoting plate can perform pivoting movement relative to the axis of the bottom plate along the left-right direction and can be positioned at any angle during movement.
2. The shielding apparatus for a radiological source of claim 1 wherein the skeleton further includes a grid-like support rib formed from flexible positioning hoses, the support rib being connected to the frame.
3. A shielding device for a radiological source as set forth in claim 2, wherein said shielding curtain is made of lead rubber, and includes a front shielding curtain and a rear shielding curtain fixed to front and rear sides of said frame, respectively.
4. The shielding apparatus for a radiological source of claim 1 wherein the mount includes upper and lower clamps connected in an up-down opposed relationship, the upper clamp including an upper clamp plate having a first central through hole, an upper end within the first central through hole having a step; the lower clamping piece comprises a lower clamping plate with a second central through hole, a plurality of hooks extending upwards are uniformly arranged on the lower clamping plate along the edge of the second central through hole, and the hooks sequentially penetrate through the second strip-shaped groove, the first strip-shaped groove and enter the first central through hole to be connected with the step buckle, so that the upper clamping piece and the lower clamping piece are connected with each other and clamp the first pivoting plate and the second pivoting plate.
5. The shielding device for a radioactive source of radiology department as set forth in claim 4, wherein a rotating shaft is pivotally disposed in the mounting base along a vertical direction, a lower end of the rotating shaft is rotatably disposed in the second central through hole after passing through the first central through hole, and an upper end of the rotating shaft is fixedly connected with an end of the connecting piece far from the framework.
6. The apparatus of claim 5, wherein a stop ring is disposed at the middle of the shaft and is disposed at the upper end of the first central through hole, an external thread is disposed at the portion of the lower end passing through the second central through hole, a fixing nut is screwed on the external thread, an annular groove is disposed at the position between the stop ring and the external thread, and an O-shaped rubber ring is disposed in the annular groove, so that the shaft and the second central through hole can be rotationally positioned by the O-shaped rubber ring.
7. The shielding apparatus for a radiological source of claim 4 wherein the lower surface of the upper clamping plate and the upper surface of the lower clamping plate are spherical surfaces that are radianally matched to the first pivoting plate and the second pivoting plate, and the upper surface of the lower clamping plate is provided with a guide groove that accommodates the second pivoting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810428435.4A CN108335772B (en) | 2018-05-07 | 2018-05-07 | Protection device for be used for radiology department radioactive source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810428435.4A CN108335772B (en) | 2018-05-07 | 2018-05-07 | Protection device for be used for radiology department radioactive source |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108335772A CN108335772A (en) | 2018-07-27 |
| CN108335772B true CN108335772B (en) | 2023-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810428435.4A Active CN108335772B (en) | 2018-05-07 | 2018-05-07 | Protection device for be used for radiology department radioactive source |
Country Status (1)
| Country | Link |
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| CN (1) | CN108335772B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3967129A (en) * | 1975-04-28 | 1976-06-29 | Research Corporation | Radiation shielding curtain |
| US4581538A (en) * | 1983-09-30 | 1986-04-08 | Colonial X-Ray Corporation | Radiation shield |
| CN203524696U (en) * | 2013-09-22 | 2014-04-09 | 李健 | Protective curtain used for human body sensitive part medical X-ray photography |
| CN106169315A (en) * | 2016-08-29 | 2016-11-30 | 中国人民解放军军事医学科学院卫生装备研究所 | A kind of field medical X-ray protective device and use the means of defence of this device |
| CN208157083U (en) * | 2018-05-07 | 2018-11-27 | 北京大学深圳医院 | A kind of protective device for dept. of radiology's radioactive source |
| CN213850750U (en) * | 2020-11-07 | 2021-08-03 | 余延风 | Protection device for be used for radiology department radiation source |
-
2018
- 2018-05-07 CN CN201810428435.4A patent/CN108335772B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3967129A (en) * | 1975-04-28 | 1976-06-29 | Research Corporation | Radiation shielding curtain |
| US4581538A (en) * | 1983-09-30 | 1986-04-08 | Colonial X-Ray Corporation | Radiation shield |
| CN203524696U (en) * | 2013-09-22 | 2014-04-09 | 李健 | Protective curtain used for human body sensitive part medical X-ray photography |
| CN106169315A (en) * | 2016-08-29 | 2016-11-30 | 中国人民解放军军事医学科学院卫生装备研究所 | A kind of field medical X-ray protective device and use the means of defence of this device |
| CN208157083U (en) * | 2018-05-07 | 2018-11-27 | 北京大学深圳医院 | A kind of protective device for dept. of radiology's radioactive source |
| CN213850750U (en) * | 2020-11-07 | 2021-08-03 | 余延风 | Protection device for be used for radiology department radiation source |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108335772A (en) | 2018-07-27 |
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