CT examination protection device with thyroid protection function and protection method of CT examination protection device

Abstract

The CT examination protection device with the thyroid protection function comprises a neck protection piece, the neck protection piece is provided with a pair of protection piece bodies distributed in a V shape or an arc shape, and the pair of protection piece bodies are attached to the front side, the left side and the right side of the neck of a patient to avoid a lung tip X-ray path. The neck protection piece is provided with a connecting belt assembly used for being connected with a CT bed, dose recording patches are detachably arranged on the side walls, deviating from each other, of the two protection piece bodies, and the dose recording patches are used for collecting local radiation quantity and visually displaying the local radiation quantity. According to the CT examination protection device with the thyroid protection function, the radiation dosage borne by the thyroid can be remarkably reduced, imaging artifacts are reduced, the embedded ray induction label can record the local radiation dosage, and data support is provided for medical safety.

Description

TECHNICAL FIELD

[0001] The present application relates to a CT examination protection device with thyroid protection function, belonging to the technical field of medical devices. BACKGROUND

[0002] In chest CT examination, the thyroid part is easy to be affected by radiation due to its proximity to the scanning area. Although the traditional thyroid protection device, such as a lead neck warmer, can provide some protection, it often blocks the lung apex, resulting in incomplete imaging, even artifacts, affecting the accuracy of diagnosis. In addition, the traditional device is difficult to adapt to the neck length and body position of different patients, is inconvenient to use, may affect the comfort of patients and the smooth progress of the examination, and cannot record the local radiation dose, so that medical staff cannot accurately understand the radiation exposure of patients, which is more likely to adversely affect the thyroid.

[0003] Therefore, there is an urgent need in the art for a device that can effectively protect the thyroid, is more comfortable, does not affect the imaging of the lung apex, and reduces artifacts. SUMMARY

[0004] The technical problem to be solved by the present application is that the existing CT examination thyroid protection device blocks the lung apex, resulting in incomplete imaging, even artifacts, affecting the accuracy of diagnosis, and poor comfort and lack of radiation dose monitoring.

[0005] In order to solve the above technical problems, the present application provides a CT examination protection device with thyroid protection function, which can ensure that the device does not affect the imaging quality of the lung apex during use, reduces the generation of artifacts, can adapt to the neck length and body position of different patients, realizes real-time monitoring and visual display of local radiation dose, and provides accurate radiation exposure data for medical staff.

[0006] In order to achieve the above technical purpose and achieve the above technical effect, the present application realizes the following technical scheme:

[0007] In a first aspect, the present application provides a CT examination protection device with thyroid protection function, comprising a neck protection sheet, the neck protection sheet has a pair of V-shaped or arc-shaped distribution of protection sheet bodies, a pair of the protection sheet bodies are attached to the front side and the left and right sides of the patient's neck to avoid the X-ray path of the lung apex, the neck protection sheet is provided with a connecting belt assembly for connecting the CT bed, and the side walls of the two protection sheet bodies facing away from each other are detachably provided with a dose recording patch, the dose recording patch is used to collect local radiation and visually display.

[0008] Preferably, the connecting belt assembly comprises a connecting belt body and an adjusting buckle, the connecting belt body is provided with two parts corresponding to the protective sheet body and arranged on the sides of the two protective sheet bodies away from each other, the ends of the connecting belt body are connected with the adjusting buckles, and the ends of the connecting belt body are respectively hinged to the protective sheet body and the outer wall of the CT bed through the adjusting buckles.

[0009] Further, the intelligent linkage system for automatically adjusting the position of the neck protective sheet on the CT bed is further included, the intelligent linkage system has a positioning module, a sensor module, an execution module and an adjusting assembly, the positioning module is arranged in the CT bed, the sensor module is provided with multiple parts and arranged on the two protective sheet bodies, the multiple sensor modules are electrically connected with the positioning module to reflect the covering position of the neck protective sheet on the human body, the execution module is arranged on the CT bed and electrically connected with the positioning module to receive the position information of the neck protective sheet fed back by the positioning module, and the adjusting assembly is arranged between the adjusting buckle connected with the CT bed and the connecting belt body to adjust the distance between the neck protective sheet and the adjusting buckle connection point on the CT bed, the adjusting assembly is electrically connected with the execution module to drive the adjusting assembly to operate through the execution module.

[0010] Further, the adjusting buckle arranged on the protective sheet body is a "eye" buckle, the adjusting buckle connected with the CT bed is a "sun" buckle, the adjusting assembly comprises a driving motor, a driving gear and a driven gear belt, the driving motor is arranged in the middle horizontal rod of the adjusting buckle, and the driving motor shaft is coaxial with the length direction of the middle horizontal rod of the adjusting buckle, at least one driving gear is arranged, the driving gear is coaxially arranged on the output shaft of the driving motor to realize reciprocating rotation, and the driving gear partially extends out of the outer wall of the middle horizontal rod of the adjusting buckle, the driven gear belt is arranged on the side outer wall of the connecting belt body covering the driving gear, and the driving motor is electrically connected with the execution module.

[0011] Further, at least one shielding shell is arranged on the middle horizontal rod of the adjusting buckle, the shielding shell in the adjusting buckle has a radiation shielding inner cavity, the driving motor is arranged in the radiation shielding inner cavity, and the driving gear and the driven gear belt are both plastic material bodies.

[0012] Further, the adjusting buckle arranged on the protective sheet is a 'eye' buckle, and the adjusting buckle arranged on the CT bed has a back-shaped buckle body, a horizontal rod is arranged between the opposite inner walls of one side of the adjusting buckle, and a vertical rod is arranged on the inner wall of the side of the adjusting buckle away from the horizontal rod; the adjusting assembly comprises an electromagnet, an electromagnetic coil, a battery pack and an adjusting block, the electromagnet is arranged in the rod body on the side of the adjusting buckle connected with the vertical rod, the electromagnetic coil is arranged in the adjusting buckle and surrounds the electromagnet, the battery pack is arranged in the adjusting buckle and is electrically connected with the electromagnetic coil and the executing module, the battery pack controls the on-off of current through the executing module, the adjusting block is arranged on the connecting belt body, the adjusting block is in sliding fit with the outer wall of the vertical rod, the vertical rod is provided with an adjusting opening for the insertion of the adjusting block at the intersection with the horizontal rod, and the outer wall of the vertical rod is provided with a sliding groove in communication with the adjusting opening, and the adjusting block and the sliding groove are in transition fit sliding.

[0013] Preferably, the dose recording patch comprises a patch body, a radiation sensitive label and a display screen, the patch body is embedded in the protective sheet and the surface thereof is exposed to the protective sheet, and the radiation sensitive label and the display screen are arranged on the outer surface of the patch body exposed to the protective sheet.

[0014] Preferably, the protective sheet is a sheet body of low-density high-attenuation material and is internally provided with a soft support frame.

[0015] Preferably, one side of the two protective sheet bodies is fixedly connected, and the other side is detachably connected through a band rope.

[0016] In the second aspect, the application provides a thyroid protection method for CT examination, which uses the CT examination protection device with thyroid protection function to protect, and comprises the following steps:

[0017] The patient lies on the CT bed;

[0018] The neck protection sheet is fixedly worn on the neck of the patient and is as close to the head as possible;

[0019] The bed body of the CT bed is connected with the neck protection sheet through the connecting belt assembly;

[0020] CT examination is performed, the intelligent linkage system accurately positions the thyroid region of the human body and automatically adjusts the relative position of the connecting point on the neck protection sheet and the CT bed according to the exposure condition of the patient;

[0021] After the examination, the medical staff can know the accurate radiation exposure data of the patient according to the dose recording patch.

[0022] The CT examination protection device with thyroid protection function provided by the application has the following advantages:

[0023] 1. By setting the structure of the neck protection sheet, the radiation dose received by the thyroid gland can be significantly reduced. The neck protection sheet uses low-density high-attenuation materials combined with "V" or arc-shaped distribution of the protection sheet design to reduce imaging artifacts.

[0024] 2. By connecting the body of the strap with the neck protection sheet and the CT bed adjustment buckle, the adjustable positioning system can adapt to different patient neck lengths and body positions, accurately positioning the thyroid gland area. The unique design ensures that the imaging of the lung apex is not blocked, and at the same time reduces the interference of artifacts on diagnosis.

[0025] 3. By embedding a radiation-sensitive label, the local radiation dose can be recorded to provide data support for medical safety.

[0026] 4. Through intelligent design, the CT bed is linked to intelligently adjust the position of the protection area, improving operation efficiency and accuracy.

[0027] 5. Lightweight and soft materials are used to improve patient comfort. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 A shaft side view of a CT examination protection device with thyroid protection function provided by embodiment one of the present application is provided.

[0029] Figure 2 A partial cross-sectional view of the adjustment assembly structure of embodiment one of the present application is provided.

[0030] Figure 3 A shaft side view of a CT examination protection device with thyroid protection function provided by embodiment two of the present application is provided.

[0031] Figure 4 A partial exploded view of the adjustment assembly structure of embodiment two of the present application is provided.

[0032] Figure 5 An adjustment port cross-sectional view of the adjustment assembly structure of the adjustment buckle of embodiment two of the present application is provided.

[0033] In the figure:

[0034] 1-neck protection sheet; 11-protection sheet body; 2-connection belt assembly; 21-connection belt body; 22-adjusting buckle; 221-shielding shell; 222-radiation shielding inner cavity; 223-vertical rod; 2231-adjusting port; 2232-slotted guide; 3-intelligent linkage system; 31-sensor module; 32-adjusting assembly; 321-driving motor; 322-driving gear; 323-driven tooth belt; 324-electromagnet; 325-electromagnetic coil; 326-battery pack; 327-adjusting block; 4-dose record patch; 41-patch body; 42-radiation sensing label; 43-display screen; 5-flexible support frame. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0036] Embodiment one:

[0037] With reference to Figure 1 and Figure 2 , a CT examination protection device with thyroid protection function comprises a neck protection sheet 1, the neck protection sheet 1 has a pair of V-shaped or arc-shaped protection sheet bodies 11, the protection sheet body 11 adopts low-density high-attenuation material as an outer layer, lead rubber particle composite layer as an intermediate layer, and soft polyethylene fiber as an inner layer, and is made into a protection sheet through a lamination process, which can effectively shield scattered radiation and reduce interference with the main radiation channel. The central region of the protection sheet body 11 has a relatively thin material thickness, which gradually thickens towards both sides to form a gradient distribution layer, thereby reducing interference with the main radiation channel. In a feasible embodiment, rare earth protection material can be used to replace the lead rubber particle composite layer in the material selection of the protection sheet body 11, thereby further reducing the material density and reducing artifacts.

[0038] The pair of protection sheet bodies 11 are attached to the front side and the left and right sides of the patient's neck to avoid the X-ray path of the lung apex, and the rear end of the protection sheet body 11 located on the left side or the right side is designed to fit the self-reclining posture of the neck, adapt to the supine body position structure, and improve the wearing comfort. One side of the two protection sheet bodies 11 is fixedly connected, and the other side is detachably connected through a binding rope, which can also realize free binding of the wearing tightness. The neck protection sheet 1 is detachably connected with a CT bed (not shown in the figure) through a connection belt assembly 2, and the side walls of the two protection sheet bodies 11, which are away from each other, are detachably installed with dose record patches 4 for collecting local radiation dose and visually displaying, thereby providing accurate radiation exposure data for medical personnel.

[0039] Furthermore, the connecting strap assembly 2 includes a connecting strap body 21 and an adjusting buckle 22. The connecting strap body 21 has two straps corresponding to the protective sheet 11 and is located on opposite sides of the two protective sheets 11. The adjusting buckle 22 is inserted and connected to both ends of the connecting strap body 21. The two ends of the connecting strap body 21 are respectively hinged to the protective sheet 11 and the outer wall of the CT bed through the adjusting buckle 22. Thus, the relative fixation of the protective sheet 11 and the CT bed is achieved through the cooperation of the connecting strap body 21 and the adjusting buckle 22, while also enabling position adjustment and detachment.

[0040] Reference Figure 1 and Figure 2 A CT scan protective device with thyroid protection function also includes an intelligent linkage system 3 for automatically adjusting the position of the neck protector 1 on the CT bed. The intelligent linkage system 3 integrates a positioning module, a sensor module 31, an execution module, and an adjustment component 32 that are interconnected and controlled. The positioning module, sensor module 31, and execution module are all combined and connected using existing modules / components to achieve the effect of monitoring the position of the neck protector 1 and controlling the adjustment component 32 to automatically adjust the position of the neck protector 1 on the human neck according to the position of the protected area.

[0041] Specifically, the positioning module is integrated into the CT bed. Multiple sensor modules 31 are installed and distributed on the two protective pads 11. The multiple sensor modules 31 are electrically connected to the positioning module to detect the position of the neck protective pad 1 on the human neck. The execution module is installed on the CT bed and electrically connected to the positioning module to receive the position information of the neck protective pad 1 fed back by the positioning module. The adjustment component 32 is installed between the adjustment buckle 22 connected to the CT bed and the connecting belt body 21 to adjust the distance between the neck protective pad 1 and the connection point of the adjustment buckle 22 on the CT bed. The adjustment component 32 is electrically connected to the execution module, which controls and drives the operation of the adjustment component 32. The positioning module and the execution module are installed on the CT bed but are not shown in the figure.

[0042] Reference Figure 1 and Figure 2, the adjustment buckle 22 provided on the protective sheet body 11 is a "mu" character buckle, and the adjustment buckle 22 connected to the CT bed is a "ri" character buckle. The adjustment component 32 includes a driving motor 321, a driving gear 322 and a driven tooth belt 323. The driving motor 321 is installed in the middle cross bar of the adjustment buckle 22, and the axial direction of the driving motor 321 is consistent with the length direction of the middle cross bar of the adjustment buckle 22. At least one driving gear 322 is installed, and the driving gear 322 is coaxially sleeved on the output shaft of the driving motor 321 to achieve reciprocating rotation. In this embodiment, the driving motor 321 is preferably a servo motor with small positioning error. A part of the driving gear 322 extends out of the outer wall of the middle cross bar of the adjustment buckle 22, and the driven tooth belt 323 is bonded or sewn on the outer wall of one side of the connecting belt body 21 passing through the adjustment buckle 22 and covering the driving gear 322. The driving motor 321 is electrically connected to the execution module, and thus the position of the neck protection piece 1 can be adjusted by means of gear drive. It can be understood that the above method is only applicable to pulling the neck protection piece 1 towards the direction close to the connection point of the adjustment buckle 22 on the CT bed. Therefore, when wearing the neck protection piece 1, the neck protection piece 1 will be pre-worn at a position away from the connection point of the adjustment buckle 22 on the CT bed.

[0043] Furthermore, at least one section of shielding shell 221 is provided on the middle cross bar of the adjustment buckle 22. There is a radiation shielding inner cavity 222 in the shielding shell 221 of the adjustment buckle 22. The driving motor 321 is placed in the radiation shielding inner cavity 222. Both the driving gear 322 and the driven tooth belt 323 are plastic material bodies, which尽可能 reduces the influence of ionizing radiation on the service life of electrical components.

[0044] Refer to Figure 1 , the dose recording patch 4 includes a patch body 41, a ray sensing label 42 and a display screen 43. The patch body 41 is embedded in the protective sheet body 11 and its surface is exposed from the protective sheet body 11. Both the ray sensing label 42 and the display screen 43 are provided on the outer surface of the patch body 41 exposed from the protective sheet body 11. The ray sensing label 42 is electrically connected to the display screen 43. The ray sensing label 42 is based on the physical effects generated by the interaction between the particles released during the decay of radioactive isotopes and substances, such as ionization effects (such as gas ionization), reflection or penetration effects (such as penetration attenuation in solids or liquids), so as to release charge or energy, and then quantify the radiation dose through the released charge or energy and display it through the display screen 43, providing accurate radiation exposure data for medical staff. The use of the ray sensing label 42 and the display screen 43 is prior art and will not be elaborated too much.

[0045] Refer to Figure 1 , a soft support frame 5 is also installed in the protective sheet body 11. The soft support frame 5 can provide support for the protective sheet body 11 and at the same time maintain flexibility to adapt to the neck shapes of different patients. The soft support frame 5 includes but is not limited to frames made of aluminum, carbon fiber and polyurethane materials.

[0046] Meanwhile, the neck protection piece 1 of the present application can achieve the stacked storage of the two parts of the protection device, reduce the volume of the device, and facilitate storage, transportation and disinfection treatment.

[0047] Embodiment 2:

[0048] Refer to Figures 3-5 , the difference between this embodiment and Embodiment 1 is that the adjustment buckle 22 provided on the protection piece body 11 is a "mesh" buckle, the adjustment buckle 22 connected to the CT bed has a loop-shaped buckle body, and a cross bar is integrally formed between the opposite inner walls on one side of the adjustment buckle 22 of the loop-shaped buckle body, and a vertical bar 223 perpendicular to the cross bar is integrally formed on the inner wall on the side of the adjustment buckle 22 away from the cross bar;

[0049] The adjustment component 32 includes an electromagnet 324, an electromagnetic coil 325, a battery pack 326 and an adjustment block 327. The electromagnet 324 is installed in the side rod body of the adjustment buckle 22 where it is connected to the vertical bar 223. The electromagnetic coil 325 is installed in the adjustment buckle 22 and wound around the electromagnet 324. The battery pack 326 is installed in the adjustment buckle 22 and electrically connected to the electromagnetic coil 325 and the execution module. The battery pack 326 controls the on and off of the current through the execution module. The adjustment block 327 is arranged on the bonding or sewing connection belt body 21, and the adjustment block 327 is slidably matched with the outer wall of the vertical bar 223. An adjustment opening 2231 for the adjustment block 327 to insert is opened at the intersection of the vertical bar 223 and the cross bar. A sliding groove 2232 communicating with the adjustment opening 2231 is opened on the outer wall of the vertical bar 223. The adjustment block 327 and the sliding groove 2232 are in transitional fit and slide. The adjustment block 327 is an iron block. In this embodiment, the energization application of the electromagnet 324 is prior art and will not be elaborated too much.

[0050] Specifically, when the connection belt body 21 is inserted into the adjustment buckle 22 and the adjustment block 327 is inserted into the adjustment opening 2231, the interval distance between the connection point of the neck protection piece 1 and the adjustment buckle 22 on the CT bed needs to meet the protection spacing of most adults. When there is an unobstructed area in the neck part, the adjustment block 327 can be pulled to slide by energizing the electromagnet 324, so as to achieve automatic position adjustment. When the adjustment is in place, the execution module timely controls the on and off of the magnetic field of the electromagnet 324. Similarly, the above method is only applicable to pulling the neck protection piece 1 in the direction close to the connection point of the adjustment buckle 22 on the CT bed. Therefore, when wearing the neck protection piece 1, the neck protection piece 1 will be worn at a position away from the connection point of the adjustment buckle 22 on the CT bed in advance.

[0051] Embodiment 3:

[0052] A thyroid protection method for CT examination, which uses the above-mentioned CT examination protection device with thyroid protection function for protection, includes the following steps:

[0053] S1, the patient is lying on the CT bed;

[0054] S2, Wear and secure the neck protector 1 to the patient's neck, placing it as close to the head as possible;

[0055] S3, the neck protection plate 1 and the CT bed body are connected by the connecting belt assembly 2;

[0056] S4, CT scan is performed. The intelligent linkage system 3 accurately locates the human thyroid region and automatically adjusts the relative position of the neck protection plate 1 and the connection point on the CT bed according to the patient's exposure.

[0057] S5, the examination is over. Medical staff will use the data collected by dose recording patch 4 to understand the patient's accurate radiation exposure data for further examination and protection to ensure treatment safety.

[0058] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any form or substance. It should be noted that those skilled in the art can make various improvements and additions without departing from the present invention, and these improvements and additions should also be considered within the scope of protection of the present invention. Any modifications, alterations, and equivalent changes made by those skilled in the art based on the above-disclosed technical content without departing from the spirit and scope of the present invention are equivalent embodiments of the present invention. Furthermore, any modifications, alterations, and evolutions made to the above embodiments based on the essential technology of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A CT scan protective device with thyroid protection function, characterized in that, It includes a neck protection piece, and the neck protection piece has a pair of protection piece bodies distributed in a "V" shape or an arc shape. The pair of protection piece bodies are attached to the front side and the left and right sides of the patient's neck to avoid the X-ray path of the lung apex. A connection belt assembly for connecting to a CT table is provided on the neck protection piece. Dose recording patches are detachably provided on the side walls of the two protection piece bodies facing away from each other, and the dose recording patches are used to collect local radiation doses and visually display them.

2. The CT scan protection device with thyroid protection function as described in claim 1, characterized in that, The connection belt assembly includes a connection belt body and adjustment buckles. There are two connection belt bodies corresponding to the protection piece bodies and are respectively arranged on one side of the two protection piece bodies facing away from each other. The adjustment buckles are inserted and connected at both ends of the connection belt body, and both ends of the connection belt body are respectively hinged to the protection piece body and the outer wall of the CT table through the adjustment buckles.

3. The CT scan protection device with thyroid protection function as described in claim 2, characterized in that, It further includes an intelligent linkage system for automatically adjusting the position of the neck protection piece on the CT table. The intelligent linkage system has a positioning module, a sensor module, an execution module, and an adjustment component. The positioning module is arranged inside the CT table. There are multiple sensor modules and are respectively arranged on the two protection piece bodies. The multiple sensor modules are electrically connected to the positioning module to reflect the covering position of the neck protection piece on the human body. The execution module is arranged on the CT table and is electrically connected to the positioning module, and is used to receive the position information of the neck protection piece fed back by the positioning module. The adjustment component is arranged between the adjustment buckle connected to the CT table and the connection belt body, and is used to adjust the distance between the connection point of the neck protection piece and the adjustment buckle on the CT table. The adjustment component is electrically connected to the execution module, and the execution module controls and drives the adjustment component to operate.

4. The CT scan protection device with thyroid protection function as described in claim 3, characterized in that, The adjustment buckle arranged on the protection piece body is a "mu" character buckle, and the adjustment buckle connected to the CT table is a "ri" character buckle. The adjustment component includes a driving motor, a driving gear, and a driven toothed belt. The driving motor is arranged inside the middle cross bar of the adjustment buckle, and the axial direction of the driving motor is consistent with the length direction of the middle cross bar of the adjustment buckle. There is at least one driving gear, and the driving gear is coaxially arranged on the output shaft of the driving motor to achieve reciprocating rotation. A part of the driving gear extends out of the outer wall of the middle cross bar of the adjustment buckle. The driven toothed belt is arranged on the outer wall of one side of the connection belt body passing through and covering the driving gear. The driving motor is electrically connected to the execution module.

5. The CT scan protection device with thyroid protection function as described in claim 4, characterized in that, At least one section of shielding housing is provided on the middle cross bar of the adjustment buckle. There is a radiation shielding inner cavity inside the shielding housing of the adjustment buckle. The driving motor is placed inside the radiation shielding inner cavity. The driving gear and the driven toothed belt are both plastic material bodies.

6. The CT scan protective device with thyroid protection function as described in claim 3, characterized in that, The adjusting buckle provided on the protective sheet body is a "mesh" buckle. The adjusting buckle connected to the CT bed has a loop-shaped buckle body. A cross bar is provided between the opposite inner walls on one side of the adjusting buckle, and a vertical bar perpendicular to the cross bar is provided on the inner wall of the adjusting buckle on the side背离 the cross bar; the adjusting component includes an electromagnet, an electromagnetic coil, a battery pack and an adjusting block. The electromagnet is provided in the rod body on the side where the adjusting buckle is connected to the vertical bar. The electromagnetic coil is provided in the adjusting buckle and wound around the electromagnet. The battery pack is provided in the adjusting buckle and electrically connected to the electromagnetic coil and the execution module. The battery pack controls the on-off of the current through the execution module. The adjusting block is provided on the connection belt body and is slidably matched with the outer wall of the vertical bar. An adjusting opening for the adjusting block to insert is opened at the intersection of the vertical bar and the cross bar. A sliding groove communicated with the adjusting opening is opened on the outer wall of the vertical bar. The adjusting block and the sliding groove are in transitional fit and slide.

7. The CT scan protection device with thyroid protection function as described in claim 1, characterized in that, The dose recording patch includes a patch body, a ray sensing label and a display screen. The patch body is embedded in the protective sheet body and its surface is exposed from the protective sheet body. The ray sensing label and the display screen are both provided on the outer surface of the patch body exposed from the protective sheet body.

8. The CT scan protection device with thyroid protection function as described in claim 1, characterized in that, The protective sheet body is a low-density and high-attenuation material sheet body and a soft support frame is provided inside.

9. The CT scan protective device with thyroid protection function as described in claim 1, characterized in that, One adjacent end of the two protective sheet bodies is fixedly connected, and the other adjacent end is detachably connected by a binding rope.

10. A method for thyroid protection during CT scan, characterized in that, Using the CT examination protection device with thyroid protection function as described in any one of claims 1-9 for protection, including the following steps: The patient lies on the CT bed; Wear and fix the neck protection sheet on the patient's neck and position it as close to the head as possible; Connect the neck protection sheet and the bed body of the CT bed through the connection belt assembly; Perform a CT examination. The intelligent linkage system accurately locates the human thyroid area and automatically adjusts the relative position of the connection point between the neck protection sheet and the CT bed according to the patient's exposure situation; After the examination, the medical staff understands the accurate radiation exposure data of the patient according to the collection situation of the dose recording patch.

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