阅读说明：本技术 一种ct射线防护装置 (CT ray protector ) 是由 孙永军 于 2021-03-08 设计创作，主要内容包括：本发明公开了一种CT射线防护装置,属于射线防护设备技术领域,该CT射线防护装置包括设置在CT机的扫描窗口前侧的前挡防护圈(1)以及设置在CT机的扫描窗口后侧的后挡防护圈(2),前挡防护圈(1)的后端和后挡防护圈(2)的前端之间采用铝当量不超过2mm的扫描窗口圈(3)相连接。本发明的防护装置通过前挡防护圈和后挡防护圈等部件的设置,能够阻挡CT机外壳及CT扫描通道内辐射出的散射线损伤受检者未扫描部位；上述防护装置在实际使用时防护效果好,且和受检者几乎无接触,也无需操作,有利于受检者接受检查,节省医生日常为受检者穿戴、遮挡防护衣的操作时间。(The invention discloses a CT ray protection device, which belongs to the technical field of ray protection equipment and comprises a front baffle protection ring (1) arranged on the front side of a scanning window of a CT machine and a rear baffle protection ring (2) arranged on the rear side of the scanning window of the CT machine, wherein the rear end of the front baffle protection ring (1) is connected with the front end of the rear baffle protection ring (2) by a scanning window ring (3) with the aluminum equivalent not more than 2 mm. The protective device can prevent scattered rays radiated from the shell of the CT machine and the CT scanning channel from damaging the part of a detected person which is not scanned by the scattered rays through the arrangement of the front guard protective ring, the rear guard protective ring and other components; above-mentioned protector is protecting effect good when in-service use, and with the person of being examined nearly contactless, also need not the operation, is favorable to the person of being examined to accept the inspection, saves the doctor daily for the person of being examined dress, shelter from the operating time of protective clothing.)

1. A CT-ray shielding apparatus, comprising: the protective device comprises a front blocking protective ring (1) arranged on the front side of a scanning window of the CT machine and a rear blocking protective ring (2) arranged on the rear side of the scanning window of the CT machine, wherein the rear end of the front blocking protective ring (1) is connected with the front end of the rear blocking protective ring (2) through a scanning window ring (3) with the aluminum equivalent not more than 2 mm.

2. The CT-ray shielding apparatus according to claim 1, wherein: the front guard ring (1) and the rear guard ring (2) can be attached to the inner wall of the CT scanning channel.

3. The CT-ray shielding apparatus according to claim 1, wherein: the rear end of the front guard ring (1) is fixed at the front end of the scanning window ring (3), and the front end of the rear guard ring (2) is fixed at the rear end of the scanning window ring (3).

4. The CT-ray shielding apparatus according to claim 1, wherein: the tops of the inner walls of the two ends of the scanning window ring (3) are respectively provided with a front protective curtain (4) and a rear protective curtain (6) which fall downwards; the bottom parts of the inner walls of the two ends of the scanning window ring (3) are respectively provided with a front lower blocking protective block (5) and a rear lower blocking protective block (7) which are arranged upwards.

5. The CT-ray shielding apparatus according to claim 1, wherein: the front guard ring (1) is bowl-shaped with a through hole at the bottom, and the bottom of the bowl of the front guard ring (1) is arranged adjacent to the scanning window; the rear baffle protective ring (2) is in a circular ring shape or in a circular ring bowl shape after the rear end is unfolded.

6. The CT-ray shielding apparatus of claim 1 or 5, wherein: the front guard protective ring (1) is formed by an integrally formed bowl-shaped protective ring with a through hole at the bottom or a bowl-shaped protective ring which is formed by combining a plurality of flexible protective plates and has a through hole at the bottom; the rear fender protective ring (2) is composed of an integrally formed annular flexible protective plate or an annular flexible protective plate combined by a plurality of flexible protective plates.

7. The CT-ray shielding apparatus of claim 1 or 5, wherein: the front end of the front guard ring (1) and/or the rear end of the rear guard ring (2) can adjust the inclination angle.

8. The CT-ray shielding apparatus according to claim 1, wherein: the scanning window ring (3) is made of transparent materials.

9. The CT-ray shielding apparatus according to claim 1, wherein: CT ray protector be provided with and remove the support frame, should remove the support frame and include backup pad (8), stand (9), base (10) and universal wheel (11), set up universal wheel (11) and set up stand (9) that can height-adjusting on base (11) in the bottom of base (10), the front end and backstop guard ring (2), scanning window circle (3) fixed connection of the back end of the top fixed support board (8) of stand (9) and backup pad (8).

10. The CT-ray shielding apparatus of claim 9, wherein: the upright post (9) is arranged in an eccentric mode, the upright post (9) is arranged at a position close to a CT host on the base (10) and a balancing weight with enough weight is placed at a position far away from the rear guard protective ring (2) in the base (10) so as to ensure that the protective device cannot be laterally turned over towards the front guard protective ring (1).

Technical Field

The invention relates to the technical field of ray protection equipment, in particular to protection equipment of a CT machine, and specifically relates to a CT ray protection device which is good in protection effect and convenient to use.

Background

With the rapid development of medical detection technology, CT (computed tomography), that is, computerized tomography, has been increasingly widely used due to its ability to detect millisecond-level lesions, and the CT detection technology uses a precisely collimated X-ray beam and a highly sensitive detector to perform cross-section scanning one by one around a certain part of a human body, has the characteristics of rapid scanning time and clear image, and can be used for the examination of various diseases.

However, it is known that radiation can seriously irradiate human body, and because only a specific part of the patient's body is examined during the examination, the part which is not examined is difficult to be protected from the radiation of the radiation, and the radiation can cause certain damage after being absorbed by the human body. Especially, gonads, thyroid glands, lungs, mammary glands and the like of a human body are most easily damaged, a plurality of tumors can be induced when human tissues are exposed to radioactive rays, and the research of the international radiation protection committee proves that the risk of carcinogenesis of a detected person can be obviously improved through one CT scanning general examination.

The casing of the CT machine is not generally made of a material with a protective effect, and a large amount of scattered rays inside the CT machine can be radiated to the body of a detected person through the casing of the CT machine during working. During a CT scan, therefore, regulations specify that an effective shielding must be provided for unscanned parts of the subject to avoid radiation. The common protective lead clothes have large weight, are not convenient to wear and block, have poor protective effect due to limited protective parts, and are difficult to avoid radiating bodies such as knee joints, heads and the like which do not need to be inspected during the inspection, thereby causing the incurable injury to the bodies of patients. Since the position scanned by the CT is dynamically changed, it is impossible to dynamically adjust the position shielded by the lead garment during actual inspection, and therefore, even if the lead garment is used for shielding, the protection effect is very poor. If repeated manual adjustment is carried out, the time and labor are consumed, the operation time of CT scanning is prolonged, and the examination efficiency is reduced. Different patients wear the same protective lead clothes, if the lead clothes are not disinfected and sterilized in time, the lead clothes also have more serious potential safety hazards such as cross infection.

Disclosure of Invention

The invention aims to provide a CT ray protection device which is good in protection effect and convenient to use, aiming at the problems in the prior art.

The invention aims to solve the problems by the following technical scheme:

a CT-ray shielding apparatus, comprising: the protective device comprises a front blocking protective ring arranged on the front side of a scanning window of the CT machine and a rear blocking protective ring arranged on the rear side of the scanning window of the CT machine, wherein the rear end of the front blocking protective ring is connected with the front end of the rear blocking protective ring through a scanning window ring with the aluminum equivalent not more than 2 mm.

The front guard ring and the rear guard ring can be attached to the inner wall of the CT scanning channel.

The rear end of the front guard ring is fixed at the front end of the scanning window ring, and the front end of the rear guard ring is fixed at the rear end of the scanning window ring.

The tops of the inner walls of the two ends of the scanning window ring are respectively provided with a front protective curtain and a rear protective curtain which fall downwards; and the bottoms of the inner walls of the two ends of the scanning window ring are respectively provided with a front lower blocking protective block and a rear lower blocking protective block which are arranged upwards.

The front guard ring is bowl-shaped with a through hole at the bottom, and the bottom of the bowl of the front guard ring is arranged adjacent to the scanning window; the rear baffle protective ring is in a circular ring shape or in a circular ring bowl shape after the rear end is unfolded.

The front shield protective ring is formed by an integrally formed bowl-shaped protective ring with a through hole at the bottom or a bowl-shaped protective ring with a through hole at the bottom, which is formed by combining a plurality of flexible protective plates, and the flexible protective plates can adjust the shapes of the flexible protective plates according to the shapes of different CT scanning channels so as to be better attached to the inner wall and the shell of the CT scanning channel; the shape of the backstop guard ring is similar to the shape of the rear end of a CT scanning channel, or the flexible guard plate with a split end and capable of flexibly adjusting the shape of the backstop guard ring according to the shape of the CT scanning channel is used.

The front end of the front guard ring and/or the rear end of the rear guard ring can adjust the inclination angle.

The scanning window ring is made of transparent materials.

CT ray protector be provided with and remove the support frame, should remove the support frame and include backup pad, stand, base and universal wheel, set up the universal wheel and set up the stand that can height-adjusting on the base in the bottom of base, the back end of the top fixed support board of stand and the front end and the backstop guard ring of backup pad, scanning window circle fixed connection.

The stand adopt off-center mode setting, this stand install on the base be close to the position department of CT host computer and keep away from the balancing weight of enough weight in the inside position department of backstop guard ring of base to ensure that protector can not turn on one's side to the fender guard ring direction.

Compared with the prior art, the invention has the following advantages:

the protective device can prevent rays emitted by the CT machine from radiating to the part, which is not scanned, of the examinee through the shell by arranging the front guard ring and the rear guard ring so as to protect the part, which is not required to be checked, of the examinee; in addition, through the arrangement of the front protective curtain, the rear protective curtain, the front lower blocking protective block and the rear lower blocking protective block, when rays emitted by a scanning window of the CT machine scan an examinee, the rays reflected by the examinee are limited in an annular cavity formed by the scanning window and cannot be scattered outside the CT machine; above-mentioned protector is protecting effect good when in-service use, and with the person of being examined nearly contactless, also need not the operation, is favorable to the person of being examined to accept the inspection, saves the doctor daily for the person of being examined dress, shelter from the operating time of protective clothing.

Drawings

FIG. 1 is a front view of a CT radiation shielding device of the present invention;

FIG. 2 is a schematic perspective view of the CT radiation protection apparatus of the present invention;

FIG. 3 is a reference diagram of a CT radiation protection device of the present invention used in a CT machine.

Wherein: 1-front block guard ring; 2-a rear block guard ring; 3-scanning the window ring; 4-front protective curtain; 5, a front lower blocking protection block; 6-rear protective curtain; 7-rear lower blocking protection block; 8, a support plate; 9-upright column; 10-a base; 11-universal wheel.

Detailed Description

The invention is further described with reference to the following figures and examples.

As shown in fig. 1-2: a CT ray protection device comprises a front shield protective ring 1 arranged on the front side of a scanning window of a CT machine and a rear shield protective ring 2 arranged on the rear side of the scanning window of the CT machine, so as to prevent rays emitted by the CT machine from passing through the inner wall of a CT scanning channel and falling on a region outside a detected part of a detected object; adopt the aluminium equivalent to be no longer than 2 mm's scanning window circle 3 to be connected between the rear end of fender guard ring 1 before and the front end of fender guard ring 2 after, and keep off guard ring 1 before and keep off guard ring 2 after and can laminate on the inner wall of CT scanning passageway to improve the protecting effect and avoid hindering the removal of CT bed panel. In addition, because the laser positioning mechanism is arranged in the CT machine, in order to accurately position the laser positioning mechanism, the transparent scanning window ring 3 has better effect.

The first preferred embodiment is: the rear end of the front guard ring 1 is connected with the front end of the rear guard ring 2 by a scanning window ring 3 with the aluminum equivalent not more than 1 mm.

In the CT ray protection device, the rear end of a front guard ring 1 is fixed at the front end of a scanning window ring 3, the front end of a rear guard ring 2 is fixed at the rear end of the scanning window ring 3, and as for the connection mode of the front guard ring 1 and the scanning window ring 3 and the connection mode of the rear guard ring 2 and the scanning window ring 3, embedded connection, bonding or other fixing modes can be selected according to requirements; furthermore, the CT ray protection device provided by the invention does not adopt local parts (strip-shaped parts and stick-shaped parts) in order to avoid shadow on the CT film. In addition, three openings are arranged at the periphery of the front end of the front guard ring 1, so as to avoid opening three laser positioning lamps of the CT machine.

In order to prevent the ray emitted from the scanning window of the CT machine from scattering to the surrounding space when the ray is scanned by the examinee, the top parts of the inner walls at the two ends of the scanning window ring 3 are respectively provided with a front protective curtain 4 and a rear protective curtain 6 which fall downwards, and the bottom parts of the inner walls at the two ends of the scanning window ring 3 are respectively provided with a front lower baffle protective block 5 and a rear lower baffle protective block 7 which are arranged upwards, so that the ray reflected by the examinee is limited in the annular cavity formed by the scanning window. Further, can keep off the both ends of protection piece 5 and the back of keeping off down before with and keep off protection piece 7 down after with along the CT scanning passageway inner wall circumference of CT machine and prolong to the tip of corresponding preceding protection curtain 4 and back protection curtain 6 for the tip of preceding protection piece 5 and preceding protection curtain 4 of keeping off down links up to seal, the tip of keeping off protection piece 7 and back protection curtain 6 under the back links up to seal. It should be noted that the front lower-stop protection block 5 and the rear lower-stop protection block 7 are made of flexible protection materials to avoid obstructing the movement of the CT bed panel.

Regarding the specific shape of the front guard ring 1 and the rear guard ring 2, according to the shape of the inner wall of the CT scanning channel of the CT machine, generally, the front guard ring 1 is in a bowl shape with a through hole at the bottom, the bottom of the bowl of the front guard ring 1 is disposed adjacent to the scanning window, and the rear guard ring 2 is in a ring shape or a circular bowl shape with a rear end being unfolded. The front guard ring 1 and/or the rear guard ring 2 can adopt an integral structure or a splicing structure according to requirements, such as: the front shield protective ring 1 can be formed by an integrally formed bowl-shaped protective ring with a through hole at the bottom or a bowl-shaped protective ring with a through hole at the bottom, which is formed by combining a plurality of flexible protective plates, and the flexible protective plates can adjust the shapes of the flexible protective plates according to the shapes of different CT scanning channels so as to be better attached to the inner wall and the shell of the CT scanning channel; backstop guard ring 2 comprises the flexible guard plate of the ring form of integrated into one piece, perhaps constitutes by the flexible guard plate of the ring form that the flexible guard plate of polylith makes up, and the shape of backstop guard ring 2 is the same as the shape of CT scanning passageway rear end, perhaps uses terminal cut, can adjust the flexible guard plate of self shape in a flexible way according to CT scanning passageway shape, and the length of backstop guard ring 2 can be as required than the length of CT scanning passageway rear end some long.

In addition, in order to provide a set of CT ray protection device which can be suitable for CT machines with CT scanning channels with different apertures, the inclination angle of the front end of the front guard ring 1 and/or the rear end of the rear guard ring 2 can be adjusted.

Specifically, the material of the scanning window ring 3, the scanning window ring 3 can be selected from, but not limited to, materials such as: the organic glass or resin material has the following specific requirements: the scanning window ring 3 has certain strength, the aluminum equivalent of the manufactured scanning window ring 3 is not more than 2mm, and the transparent effect is better.

In order to move the CT ray protection device provided by the invention, the CT ray protection device is provided with a movable support frame, the movable support frame comprises a support plate 8, an upright post 9, a base 10 and a universal wheel 11, the universal wheel 11 is arranged at the bottom of the base 10, the upright post 9 with adjustable height is arranged on the base 11, the top end of the upright post 9 is fixed on the rear section of the support plate 8, and the front end of the support plate 8 is fixedly connected with the backstop protection ring 2 and the scanning window ring 3. The upright column 9 can also be arranged in an off-center mode, the upright column 9 is arranged at a position close to the CT host on the base 10, and a balancing weight with enough weight is placed at a position far away from the rear guard protective ring 2 in the base 10, so that the protective device is ensured not to turn over towards the front guard protective ring 1.

It should be noted that the lead equivalent of the front shield protective ring 1, the rear shield protective ring 2, the front shield curtain 4, the front lower shield protective block 5, the rear shield curtain 6 and the rear lower shield protective block 7 adopted in the CT radiation protection device of the present invention is not less than 0.5mmPb, and the protection capability can meet the requirements of the relevant national laws and regulations.

The effect of the installation of the CT ray protection device on the CT machine is shown in figure 3, the CT ray protection device has two modes of passing through a CT scanning channel from back to front and passing through the CT scanning channel from front to back, and different designs can be provided for different modes. In order to facilitate the front-guard protective ring 1 to pass through the CT scanning channel from back to front, the front-guard protective ring 1 can be formed by lead cloth and lead sheet which can be bent, after the front-guard protective ring 1 passes through the CT scanning channel from back to front, the front part of the front-guard protective ring 1 is broken off one by one and is attached to the inner wall of the CT scanning channel, and therefore the installation of the CT ray protection device can be completed. Of course, the CT radiation protection device including the front guard ring 1, the rear guard ring 2, the scanning window ring 3 and the support plate 8 may also be passed through the CT scanning passage from front to back, and then the support plate 8 is fixed on the column 9 to complete the installation of the CT radiation protection device.

The specification of each part in the CT ray protection device can be customized according to the specification requirements of different CT machines.

The protective device can prevent rays emitted by the CT machine from radiating to the part, which is not scanned, of the examinee through the machine shell by arranging the front guard ring 1 and the rear guard ring 2 so as to protect the part, which is not required to be checked, of the examinee; in addition, by the arrangement of the front protective curtain 4, the rear protective curtain 6, the front lower baffle protective block 5 and the rear lower baffle protective block 7, when the ray emitted by the scanning window of the CT machine scans the examinee, the ray reflected by the examinee is limited in the annular cavity formed by the scanning window and cannot be scattered outside the CT machine; above-mentioned protector is protecting effect good when in-service use, and with the person of being examined nearly contactless, also need not the operation, is favorable to the person of being examined to accept the inspection, saves the doctor daily for the person of being examined dress, shelter from the operating time of protective clothing.

The above embodiments are only for illustrating the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby, and any modification made on the basis of the technical scheme according to the technical idea proposed by the present invention falls within the protection scope of the present invention; the technology not related to the invention can be realized by the prior art.