阅读说明：本技术 一种无纺布覆盖的避免新冠患者交叉感染的ct检查设备 (Non-woven fabrics covers avoids new coronary patient cross infection's CT check out test set ) 是由 王昊 韩辉 秦伟栋 于 2021-03-17 设计创作，主要内容包括：本发明的无纺布覆盖的避免新冠患者交叉感染的CT检查设备,包括CT检查仪、检查床、CT检查仪覆盖设备和检查床覆盖设备,CT检查仪覆盖设备用于对检查腔的内壁进行覆盖,检查床覆盖设备对检查床的表面进行覆盖；检查床覆盖设备由第一支座、第二支座、无纺布片卷和卷布片电机组成；CT检查仪覆盖设备由第三支座、第四支座、第五支座、无纺布筒卷、支撑圆圈和卷布筒装置组成。本发明的CT检查设备,通过将检查床和检查腔进行无纺布覆盖,确保了病人CT扫描前病人未接触过,有效避免了新冠肺炎的船舶,尤其是对于无症状感染者或核酸检测成假阴性的感染病人来说,可有效避免其传播新冠肺炎病毒。(The non-woven fabric covered CT examination equipment for avoiding cross infection of new crown patients comprises a CT examination instrument, an examination bed, CT examination instrument covering equipment and examination bed covering equipment, wherein the CT examination instrument covering equipment is used for covering the inner wall of an examination cavity, and the examination bed covering equipment covers the surface of the examination bed; the examination bed covering equipment consists of a first support, a second support, a non-woven fabric sheet roll and a fabric sheet rolling motor; the CT inspection instrument covering equipment consists of a third support, a fourth support, a fifth support, a non-woven fabric drum, a supporting circle and a fabric drum rolling device. According to the CT examination equipment, the examination bed and the examination cavity are covered by the non-woven fabric, so that the patient is not contacted before CT scanning of the patient, ships with new coronary pneumonia are effectively avoided, and particularly, new coronary pneumonia viruses can be effectively prevented from being transmitted to asymptomatic infectors or infected patients with false negative nucleic acid detection.)

1. A non-woven fabric covered CT examination device for avoiding cross infection of new crown patients comprises a CT examination instrument (1), an examination bed (2), a CT examination instrument covering device and an examination bed covering device, wherein the examination bed is arranged at the front end of the CT examination instrument, an examination cavity (3) is formed in the center of the CT examination instrument, the CT examination instrument covering device is used for covering the inner wall of the examination cavity, and the examination bed covering device covers the surface of the examination bed; the method is characterized in that: the examination bed covering equipment consists of a first support (5), a second support (6), a non-woven fabric roll (7) and a fabric rolling motor (9), wherein the first support and the second support are respectively fixed on foundations (4) at the front end and the rear end of the examination bed, the non-woven fabric roll is formed by winding non-woven fabric sheets (8), and the non-woven fabric roll is rotatably arranged on the first support; the cloth rolling sheet motor is arranged on the second support, a rotating shaft (19) is rotatably arranged on the second support, and one end of the rotating shaft is connected with an output shaft of the cloth rolling sheet motor; the non-woven fabric sheet on the non-woven fabric sheet roll covers the surface of the examination bed and then is wound on the rotating shaft, and the non-woven fabric sheet covered on the examination bed is updated by driving the rotating shaft to rotate by the cloth rolling motor;

the CT inspection instrument covering equipment consists of a third support (10), a fourth support (11), a fifth support (12), a non-woven fabric barrel roll (13), a supporting circle (15) and a cloth barrel rolling device (16), wherein the third support and the fifth support are respectively arranged on foundations at the rear end and the front end of the CT inspection instrument, the fourth support is arranged between the third support and the rear end of the CT inspection instrument, the non-woven fabric barrel roll is rotatably arranged on the third support, and the non-woven fabric barrel roll is formed by winding a non-woven fabric barrel (14); the supporting circle is fixed on the fourth support, the supporting circle and the inspection cavity (3) are coaxially arranged, the cloth rolling barrel device is arranged on the fifth support, the non-woven fabric barrel penetrates through the periphery of the supporting circle and the inspection cavity and then is wound on the cloth rolling barrel device, and the non-woven fabric barrel (14) in the inspection cavity is updated by rolling up the non-woven fabric barrel.

2. The non-woven fabric covered CT examination apparatus for avoiding cross-infection of new crown patients according to claim 1, wherein: the cloth rolling cylinder device (16) consists of three or more cloth rolling cylinder mechanisms, and all the cloth rolling cylinder mechanisms are connected in sequence to form a ring shape with the inner part passing through the inspection bed (2); the cloth rolling drum mechanism consists of a first arc-shaped support (21), a cloth rolling drum motor (22), a rolling roller (23), a bearing (24) and a second arc-shaped support (25), wherein a shell of the cloth rolling drum motor is fixed on the first arc-shaped support, one end of the rolling roller is fixedly connected with an output shaft of the cloth rolling drum motor, the other end of the rolling roller is fixed on the second arc-shaped support through the bearing, and a hook (26) for fixing the non-woven fabric drum (14) is fixed on the rolling roller; the non-woven fabric drum is rolled up by the cloth drum motor by driving the winding roller to rotate.

3. The non-woven fabric covered CT examination apparatus for avoiding cross-infection of new crown patients according to claim 1 or 2, wherein: the width of the non-woven fabric sheet (8) on the non-woven fabric sheet roll (7) is larger than that of the examination bed (2), and the non-woven fabric sheet covers the upper surface and the side surface of the examination bed.

4. The non-woven fabric covered CT examination apparatus for avoiding cross-infection of new crown patients according to claim 1 or 2, wherein: the lower end of the non-woven fabric cylinder (14) is provided with an opening part (20), and the fourth support (11) and the fifth support (12) penetrate through the opening part on the non-woven fabric cylinder.

5. The non-woven fabric covered CT examination apparatus for avoiding cross-infection of new crown patients according to claim 1 or 2, wherein: a first band-type brake motor (28) is arranged on a rotating shaft where the non-woven fabric sheet roll (7) is located, and a second band-type brake motor (29) is arranged on a rotating shaft where the non-woven fabric barrel roll (13) is located; the rotating shafts (19) and the non-woven fabric rolls (13) are provided with angle encoders.

6. The non-woven fabric covered CT examination apparatus for avoiding cross-infection of new crown patients according to claim 5, wherein: the automatic non-woven fabric roll covering device comprises a control panel (30), wherein a cloth roll automatic key (31), a cloth roll manual key (32), a cloth sheet automatic key (33) and a cloth sheet manual key (34) are arranged on the control panel, the cloth roll automatic key and the cloth roll manual key are used for respectively controlling the non-woven fabric roll to automatically and manually cover the inner surface of an inspection cavity (3), and the cloth sheet automatic key and the cloth sheet manual key are used for respectively controlling the non-woven fabric roll to automatically and manually cover the inspection bed (2).

7. The non-woven fabric covered CT examination apparatus for avoiding cross-infection of new crown patients according to claim 1 or 2, wherein: the outer diameter of the support circle (15) is equal to or larger than the inner diameter of the inspection cavity (3).

Technical Field

The invention relates to a CT (computed tomography) examination device, in particular to a non-woven fabric covered CT examination device for avoiding cross infection of new crown patients.

Background

The novel coronavirus pneumonia is called as 'New coronary pneumonia' for short, and is called as 'COVID-19' in English, and the transmission routes of the new coronary pneumonia are mainly direct transmission, aerosol transmission and contact transmission. Direct transmission refers to infection caused by sneezing, coughing, speaking droplets and direct inhalation of exhaled air in close proximity; aerosol transmission refers to the mixing of droplets in the air to form an aerosol which causes infection after inhalation; contact transmission refers to the condition that droplets are deposited on the surface of an article and contact with mucous membranes such as oral cavity, nasal cavity, eyes and the like after contacting with contaminated hands, so that infection is caused.

The hospital is a person intensive place, the daily flow of people is very large, particularly for CT detection equipment, a large amount of persons use the hospital in the open air, if a patient with new coronary pneumonia uses the CT detection equipment, the pollution of an examining table and the inner cavity of the CT equipment can be caused, and after subsequent persons contact the examining table or the inner cavity of the CT equipment, contact propagation can occur, so that epidemic prevention and control of the new coronary pneumonia are not facilitated.

Disclosure of Invention

In order to overcome the defects of the technical problems, the invention provides a CT examination device covered by non-woven fabrics and used for avoiding cross infection of new crown patients.

The non-woven fabric covered CT examination equipment for avoiding cross infection of new crown patients comprises a CT examination instrument, an examination bed, CT examination instrument covering equipment and examination bed covering equipment, wherein the examination bed is arranged at the front end of the CT examination instrument; the method is characterized in that: the examination bed covering equipment consists of a first support, a second support, a non-woven fabric roll and a fabric rolling motor, wherein the first support and the second support are respectively fixed on foundations at the front end and the rear end of the examination bed; the cloth rolling sheet motor is arranged on the second support, a rotating shaft is rotatably arranged on the second support, and one end of the rotating shaft is connected with an output shaft of the cloth rolling sheet motor; the non-woven fabric sheet on the non-woven fabric sheet roll covers the surface of the examination bed and then is wound on the rotating shaft, and the non-woven fabric sheet covered on the examination bed is updated by driving the rotating shaft to rotate by the cloth rolling motor;

the CT inspection instrument covering equipment consists of a third support, a fourth support, a fifth support, a non-woven fabric roll, a supporting circle and a fabric roll device, wherein the third support and the fifth support are respectively arranged on foundations at the rear end and the front end of the CT inspection instrument; the supporting circle is fixed on the fourth support, the supporting circle and the inspection cavity are coaxially arranged, the cloth rolling barrel device is arranged on the fifth support, the non-woven fabric barrel penetrates through the periphery of the supporting circle and the inspection cavity and then is wound on the cloth rolling barrel device, and the cloth rolling barrel device updates the non-woven fabric barrel in the inspection cavity by rolling up the non-woven fabric barrel.

The CT examination equipment covered by the non-woven fabric and used for avoiding the cross infection of the new crown patient comprises three or more cloth rolling cylinder mechanisms, wherein all the cloth rolling cylinder mechanisms are connected in sequence to form a ring shape with the inner part passing through an examination bed; the cloth rolling drum mechanism consists of a first arc-shaped support, a cloth rolling drum motor, a rolling roller, a bearing and a second arc-shaped support, wherein a shell of the cloth rolling drum motor is fixed on the first arc-shaped support, one end of the rolling roller is fixedly connected with an output shaft of the cloth rolling drum motor, the other end of the rolling roller is fixed on the second arc-shaped support through the bearing, and a hook for fixing the non-woven cloth drum is fixed on the rolling roller; the non-woven fabric drum is rolled up by the cloth drum motor by driving the winding roller to rotate.

The non-woven fabric covered CT examination equipment for avoiding the cross infection of the new crown patients has the advantages that the width of the non-woven fabric sheet on the non-woven fabric sheet roll is larger than that of the examination bed, and the non-woven fabric sheet covers the upper surface and the side surface of the examination bed.

The CT examination equipment covered by the non-woven fabric and used for avoiding the cross infection of the new crown patient is characterized in that the lower end of the non-woven fabric cylinder is provided with an opening part, and the fourth support and the fifth support penetrate through the opening part on the non-woven fabric cylinder.

According to the CT examination equipment covered by the non-woven fabric and used for avoiding the cross infection of the new coronary patients, a first band-type brake motor is arranged on the rotating shaft where the non-woven fabric sheet roll is located, and a second band-type brake motor is arranged on the rotating shaft where the non-woven fabric barrel roll is located; the rotating shafts where the rotating shaft and the non-woven fabric roll are arranged are both provided with angle encoders.

The CT examination equipment for avoiding the cross infection of the new crown patients covered by the non-woven fabrics comprises a control panel, wherein a cloth rolling automatic key, a cloth rolling manual key, a cloth piece automatic key and a cloth piece manual key are arranged on the control panel, the cloth rolling automatic key and the cloth rolling manual key are used for respectively controlling the non-woven fabrics to be automatically and manually covered on the inner surface of an examination cavity, and the cloth piece automatic key and the cloth piece manual key are used for respectively controlling the non-woven fabrics to be automatically and manually covered on an examination bed.

The non-woven fabric covered CT examination equipment for avoiding the cross infection of a new crown patient has the outer diameter of the support circle which is equal to or larger than the inner diameter of the examination cavity.

The invention has the beneficial effects that: according to the CT examination equipment for avoiding the cross infection of the new crown patient, the examination bed covering equipment consisting of the first support, the second support, the non-woven fabric sheet roll and the cloth rolling motor is arranged, so that the used non-woven fabric sheet can be wound on the rotating shaft in the process that the rotating shaft is driven by the cloth rolling motor to rotate, and the fact that the previous examination patient on the non-woven fabric sheet on the examination bed before the CT scanning of the patient does not contact with the examination bed is ensured; by arranging the CT detector covering equipment consisting of the non-woven fabric tube roll, the supporting ring and the cloth rolling tube device, the non-woven fabric tube on the non-woven fabric tube roll penetrates through the periphery of the supporting ring to be opened to form a cylindrical tube for wrapping the inner wall of the CT detector, the tail end of the non-woven fabric tube is fixed on the cloth rolling tube device, and the used non-woven fabric tube in the detection cavity is wound under the driving action of the cloth rolling tube device, so that the non-woven fabric tube in the detection cavity before CT scanning of a patient is ensured not to be contacted with the patient, the ship of new coronary pneumonia is effectively avoided, and particularly, the ship of new coronary pneumonia virus can be effectively prevented from being spread for asymptomatic infectors or infected patients with false negative nucleic acid detection.

Drawings

FIG. 1 is a front view of a CT examination apparatus of the present invention for avoiding cross-contamination of new crown patients;

FIG. 2 is a left side view of the CT examination apparatus of the present invention avoiding cross-contamination of new crown patients;

FIG. 3 is a right side view of the CT examination apparatus of the present invention avoiding cross-contamination of new crown patients;

FIG. 4 is a top view of the CT examination apparatus of the present invention avoiding cross-contamination of new coronal patients;

FIG. 5 is a cross-sectional view of section A-A of FIG. 1;

FIG. 6 is a schematic view of the structure of the nonwoven fabric cartridge of the present invention;

FIG. 7 is a cross-sectional view of section B-B of FIG. 1;

FIG. 8 is an enlarged view of a portion of the area C in FIG. 7;

FIG. 9 is a diagram of the use state of the CT examination apparatus of the present invention to avoid cross-contamination of new coronal patients;

fig. 10 is a schematic structural diagram of a control panel according to the present invention.

In the figure: 1 CT inspection instrument, 2 inspection bed, 3 inspection chamber, 4 foundations, 5 first supports, 6 second supports, 7 non-woven fabric sheet rolls, 8 non-woven fabric sheets, 9 cloth sheet rolling motors, 10 third supports, 11 fourth supports, 12 fifth supports, 13 non-woven fabric roll rolls, 14 non-woven fabric cylinders, 15 support circles, 16 cloth cylinder rolling devices, 17 used cloth cylinder rolls, 18 control panel, 19 rotating shafts, 20 opening parts, 21 first arc supports, 22 cloth cylinder motors, 23 rolling rollers, 24 bearings, 25 second arc supports, 26 hooks, 27 patients, 28 first band-type brake motors, 29 second band-type brake motors, 30 control panel, 31 cloth roll automatic keys, 32 cloth roll manual keys, 33 cloth sheet automatic keys and 34 cloth sheet manual keys.

Detailed Description

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

As shown in fig. 1 to 4, a front view, a left view, a right view and a top view of the CT examination apparatus for avoiding cross infection of a new crown patient are respectively given, and fig. 5 and 7 respectively give a cross section of a-a and a cross section of B-B in fig. 1, the CT examination apparatus for avoiding cross infection of a new crown patient is composed of a CT examination apparatus 1, an examination bed 2, a CT examination apparatus covering apparatus and an examination bed covering apparatus, the examination bed 2 is located at the front end of the CT examination apparatus 1, the CT examination apparatus 1 and the examination bed 2 are both fixed on a foundation 4, an examination cavity 3 is opened at the center of the CT examination apparatus 1, the examination bed 2 can be lifted and moved into the examination cavity 3, a patient to be examined lies on the examination bed 2, and the examination bed 2 drives the patient into the examination cavity 3 to perform CT scanning examination. The examination bed covering equipment is used for covering a layer of non-woven fabric on the examination bed 2, and the non-woven fabric is replaced once every patient is examined; the covering device for a CT examination apparatus is used to cover the examination chamber 3 of the CT examination apparatus 1 with a nonwoven fabric tube, which is also replaced with a new nonwoven fabric tube each time a patient is examined, thus preventing the contact spread of new patients with coronary pneumonia (especially asymptomatic patients or patients with false negative nucleic acid detection).

The shown examination bed covering equipment is composed of a first support 5, a second support 6, a non-woven fabric sheet roll 7 and a cloth rolling motor 9, wherein the first support 5 and the second support 6 are respectively fixed on the foundation 4 at the front end and the rear end of the examination bed 2, the non-woven fabric sheet roll 7 is formed by winding a non-woven fabric sheet 8, the center of the non-woven fabric sheet roll 7 is a scroll, and two ends of the scroll are arranged on the first support 5, so that the non-woven fabric sheet roll 7 can rotate. The non-woven fabric sheet 8 on the non-woven fabric sheet roll 7 is covered on the upper surface of the examination bed 2 and the side surface thereof. The second support 6 is rotatably provided with a rotating shaft 19, the cloth rolling sheet motor 9 is fixed on the second support 6, the rotating shaft 19 is fixedly connected with an output shaft of the cloth rolling sheet motor 9, and the tail end of the non-woven fabric sheet 8 is wound on the rotating shaft 19.

Therefore, in the process that the cloth rolling motor 9 drives the rotating shaft 19 to rotate, the used non-woven fabric sheets 8 covering the examining bed 2 can be wound on the rotating shaft 19, and the non-woven fabric sheets 8 which are not used on the non-woven fabric sheet roll 7 move to the examining bed 2 to be covered again, so that the direct contact of each examined patient can be avoided. The width of the non-woven fabric sheet 8 is larger than that of the examination bed 2, and the non-woven fabric sheet 8 should cover the upper surface of the examination bed 2 and the upper part of the side surface thereof to prevent contact propagation of the patient.

The shown covering device of the CT inspection instrument consists of a third support 10, a fourth support 11, a fifth support 12, a non-woven fabric roll 13, a support circle 15 and a fabric roll device 16, wherein the third support 10 and the fifth support 12 are respectively fixed on the foundation 4 at the rear end and the front end of the CT inspection instrument 1, and the fourth support 11 is positioned between the third support 10 and the rear end of the CT inspection instrument 1. The nonwoven fabric roll 13 is formed by winding a nonwoven fabric roll 14, the center of the nonwoven fabric roll 13 is a reel, and both ends of the reel are rotatably mounted on the third support 10 so that the nonwoven fabric roll 13 can rotate. The lower end of the supporting circle 15 is fixed on the fourth support 11, the supporting circle 15 is coaxially arranged with the inspection cavity 3, and the diameter of the supporting circle 15 is equal to that of the inspection cavity 3.

The cloth rolling cylinder device 16 is arranged on the fifth support 12, the non-woven fabric cylinder 14 penetrates through the periphery of the support circle 15, the non-woven fabric cylinder 14 tightly clings to the inner wall of the examination cavity 3 to penetrate through the examination cavity 3, the non-woven fabric cylinder 14 is connected to the cloth rolling cylinder device 16 after penetrating through the examination cavity 3, and the cloth rolling cylinder device 16 rolls up the used non-woven fabric cylinder 14 in the examination cavity 3 so as to ensure that the non-woven fabric cylinder 14 covered on the inner wall of the examination cavity 3 is the non-woven fabric cylinder which is not contacted by other patients in the examination process of each patient in the examination cavity 3, so that the spread and cross infection of new coronary pneumonia virus can be avoided.

As shown in FIG. 6, a schematic structural diagram of the nonwoven fabric tube of the present invention is shown, wherein an opening 20 is formed at the bottom of the nonwoven fabric tube 14, the opening 20 has a certain overlapping area, and both the upper end of the fourth support 11 and the upper end of the fifth support 12 pass through the opening 20 at the bottom of the nonwoven fabric tube 14, so that the nonwoven fabric tube 14 can pass through the support circle 15 and the inspection chamber 3 smoothly, and the maximum area coverage of the inner wall of the inspection chamber 3 is realized.

As shown in fig. 7, which shows a cross-sectional view of the section B-B in fig. 1, and fig. 8 which shows a partially enlarged view of the area C in fig. 7, the cloth winding device 16 is shown to be composed of 4 cloth winding mechanisms, the 4 cloth winding mechanisms are distributed in a circular ring shape, and the inner part of the circular ring formed by the 4 cloth winding mechanisms is an inner cavity through which the examination bed 2 can pass. Each shown cloth roller mechanism consists of a first arc-shaped support 21, a cloth roller motor 22, a roller 23, a bearing 24 and a second arc-shaped support 25, wherein the shell of the cloth roller motor 22 is fixed on the first arc-shaped support 21, one end of the roller 23 is rotationally fixed on the second arc-shaped support 25 through the bearing 24, and the other end of the roller 23 is connected with an output shaft of the cloth roller motor 22, so that the roller 23 can be driven to rotate under the drive of the cloth roller motor 22, and a used non-woven cloth roller 14 in the inspection cavity 3 can be rolled up. The winding roll 23 is shown with a plurality of hooks 26 secured thereto, and the end of the nonwoven web 14 is hooked to the hooks 26 to wind the nonwoven web 14 up to form the used web roll 17.

The rotating shaft of the non-woven fabric roll 7 is provided with a first band-type brake motor 28, when the cloth rolling motor 9 starts to pull the non-woven fabric roll 8 to move, the first band-type brake motor 28 is in a release state, so that the non-woven fabric roll 7 rotates under the action of pulling force, and the non-woven fabric roll 8 is released. After the non-woven fabric sheets on the examination bed 2 are laid, the first band-type brake motor 28 is in a tightly-holding state so as to avoid excessive release of the non-woven fabric sheets on the non-woven fabric sheet roll 7 under the action of inertia. Similarly, the second brake motor 29 on the rotation shaft of the nonwoven fabric roll 13 also has the same function. When a new non-woven fabric sheet 8 is laid on the examination wear 2 each time, the cloth rolling motor 9 not only lays a new non-contaminated non-woven fabric sheet 8 on the examination wear 2, but also rolls in a non-woven fabric with enough margin so that the non-woven fabric sheet at the bottom of the examination bed 2 drawn in by the examination bed 2 is also the non-contaminated non-woven fabric sheet in the process of moving the examination bed 2 into the examination chamber 3.

The rotation shaft 19 and the rotation shaft of the nonwoven fabric roll 13 are provided with angle encoders for calculating the length of the nonwoven fabric sheet 8 formed by the release of the nonwoven fabric sheet roll 7 and the length of the nonwoven fabric roll 14 formed by the release of the nonwoven fabric roll 13. As shown in fig. 10, which shows a schematic structural diagram of the control panel 30 of the present invention, the control panel 30 is provided with a cloth roll automatic button 31, a cloth roll manual button 32, a cloth piece automatic button 33 and a cloth piece manual button 34; when the automatic cloth roll button 31 is pressed, the non-woven fabric roll 13 can automatically finish the automatic laying in the inspection cavity 3, and if the manual cloth roll button 32 is pressed, the non-woven fabric roll 13 is pulled by the cloth roll motor 22 to be released to form the non-woven fabric roll 14 only at the moment when the manual cloth roll button 32 is pressed; when the cloth roll manual button 32 is released, the cloth roll motor 22 stops pulling the non-woven fabric roll 13.

Similarly, when the automatic cloth button 33 is pressed, the roll 7 of non-woven cloth will automatically finish the automatic laying on the examining table 2; if the cloth piece manual key 34 is pressed, only at the moment when the cloth piece manual key 34 is pressed, the cloth piece rolling motor 9 pulls the non-woven fabric piece roll 7 to release to form the non-woven fabric piece 8, so that the examination bed 2 is paved; when the sheet manual button 34 is released, the sheet winding motor 9 stops pulling the nonwoven fabric roll 7.

As shown in FIG. 9, a using state diagram of the CT examination apparatus for avoiding the cross infection of the new crown patient according to the present invention is shown, when in use, after the previous patient 27 has performed the CT examination, the cloth rolling motor 9 drives the rotating shaft 19 to rotate, the used non-woven fabric sheets 8 on the examination bed 2 are rolled up, and the non-woven fabric sheets 8 which are not used on the non-woven fabric sheet roll 7 are laid on the examination bed 2; meanwhile, a cloth rolling drum motor 22 on the cloth rolling drum device 16 drives a rolling roller 23 to rotate, so that the used non-woven fabric drum 14 in the inspection cavity 3 is rolled up, and the non-woven fabric drum 14 which is not used on the non-woven fabric drum 13 is covered on the inner surface of the inspection cavity 3; thus, each patient 27 is examined once, the non-woven fabric sheets 8 and the non-woven fabric cylinders 14 in the examination bed 2 and the examination cavity 3 are replaced, and the transmission of new coronavirus is effectively avoided.