CN220632097U

CN220632097U - X-ray protection device for CT system and CT system

Info

Publication number: CN220632097U
Application number: CN202321728785.5U
Authority: CN
Inventors: 姚飞荣; 徐弟; 刘猛
Original assignee: Suzhou Boying Medical Technology Co ltd
Current assignee: Suzhou Boying Medical Technology Co ltd
Priority date: 2023-07-04
Filing date: 2023-07-04
Publication date: 2024-03-22
Anticipated expiration: 2033-07-04

Abstract

The application discloses an X ray protector and CT system for CT system, this X ray protector includes: the X-ray protection component is arranged on the CT scanning frame or is independently arranged on one side of the CT scanning frame, is of an iris type structure and is used for shielding a scanning hole of the CT scanning frame, and is provided with an adjusting hole for a scanning bed to pass through, the aperture of the adjusting hole is adjustable, and the adjusting hole and the scanning hole are coaxially arranged; the detection assembly is used for detecting the size and the position of a target to be detected on the scanning bed; and the control assembly is respectively connected with the detection assembly and the X-ray protection assembly in a signal manner, and continuously controls the expansion or contraction of the adjusting hole according to the detection result of the detection assembly. The automatic protection function can be realized, repeated arrangement is not needed, and the aperture of the adjusting hole is adjusted in real time according to the size and the position of the object to be detected so as to be suitable for patients with different body types and different body part sizes of the patients.

Description

X-ray protection device for CT system and CT system

Technical Field

The utility model relates to the technical field of medical equipment, in particular to an X-ray protection device for a CT system and the CT system.

Background

The imaging principle of a CT system is that X-rays are transmitted along a certain selected fault plane of a human body from multiple directions, and the transmitted X-rays are detected by a detector and are digitally processed to reconstruct an image.

CT systems generally include a gantry, a scan bed, and a console. The rack is a key component for X-ray generation and ray detection reception; the scanning bed is a part for supporting a patient and moving the patient according to control; the console is a platform for motion control, scanning control and image reconstruction. Due to the radiation hazard of the X-rays, the frame and the scanning bed are located in a shielding chamber built by protective materials such as lead plates, and the console is located in an operating chamber. The X-rays generated on the frame are effective X-rays for checking the image, namely the area in the aperture of the frame, and the X-rays in other areas are stray rays, which are the rays which are not beneficial to the checking image, and shielding protection is needed.

At present, a conventional protective measure for a companion in a shielding room is to wear some lead-containing protective clothing, and a patient carries out local protection by wearing a protective cover on a scanning bed or wearing the lead-containing protective clothing, a hat, a scarf and the like so as to reduce the harm of X-rays to non-checking parts. However, the inspection positions of different patients are different, so as to meet the requirements of different inspections, complicated wearing protective measures are required for each patient, namely, each inspection position of each patient, or the positions of the protective cover are required to be readjusted each time, the protective clothing and the protective cover are generally of fixed sizes, the patient has different body types, the situation of incomplete coverage of the protective clothing and the protective cover can occur, the X-ray leakage is caused, and the protective effect is poor. For an inspector, each patient needs to be worn and protected, so that the working efficiency is greatly affected, and X-ray protection errors can be caused by forgetting to wear and protect.

Disclosure of Invention

The utility model aims to provide an X-ray protection device for a CT system and the CT system, and the X-ray protection device can solve the problems that the protection device is complicated to wear and troublesome to adjust, and the X-ray leakage and the low inspection efficiency are easily caused by mismatching of the size and the different patient sizes in the prior art.

In order to solve the technical problems, the utility model adopts the following technical scheme:

an X-ray protection device for a CT system for use with a CT scanner gantry and a scanner couch, comprising:

the X-ray protection component is arranged on the CT scanning frame or is independently arranged on one side of the CT scanning frame, is of an iris type structure and is used for shielding a scanning hole of the CT scanning frame, the X-ray protection component is provided with an adjusting hole for the scanning bed to pass through, the aperture of the adjusting hole is adjustable, and the adjusting hole and the scanning hole are coaxially arranged;

the detection component is used for detecting the position of the object to be detected and the size of the object to be detected which is about to enter the X-ray protection component; and

and the control component is respectively connected with the detection component and the X-ray protection component in a signal way, and continuously controls the expansion or contraction of the adjusting hole according to the detection result of the detection component.

Further, the X-ray protection component comprises a shell, a driving disc arranged in the shell and a plurality of blades arranged on the driving disc at equal intervals along the circumferential direction, wherein a plurality of blades enclose to form the adjusting hole, an outer through hole is formed in the shell, an inner through hole is formed in the driving disc, and the outer through hole and the inner through hole are coaxially arranged in the adjusting hole.

Further, the number of the blades is at least four.

Further, the material of the blade is one or a combination of a plurality of metals of lead, tungsten, molybdenum, copper and alloys containing lead, tungsten, molybdenum and copper.

Further, the driving disc comprises a chassis and a turntable arranged on one side of the chassis, a plurality of blades are arranged between the turntable and the chassis, the blades are of an arc-shaped structure and span the inner through holes, and the blades are arranged in a stacked mode to cover the inner through holes;

one end of each blade is hinged to the chassis, the other end of each blade is fixedly connected with the rotary disc, and the rotary disc is configured to rotate around the axis of the rotary disc so as to drive a plurality of blades to expand or contract the adjusting holes.

Further, the blades are in a triangular structure, tip side walls of adjacent blades are attached to each other to cover the inner through holes, the driving disc comprises a chassis and a rotary disc arranged on one side of the chassis, and a plurality of blades are arranged between the rotary disc and the chassis;

the utility model discloses a blade, including the chassis, the blade, a plurality of blades, a plurality of spouts, a plurality of have been seted up on the chassis with the blade is a plurality of spouts that set up one to one, a plurality of the spouts are connected in order to enclose in order to close and form a regular polygon structure, be provided with on the carousel with the spout is a plurality of logical grooves that set up one to one, logical groove is located corresponding directly over the spout central point put department, just logical groove is followed the radial extension of interior through-hole, the top surface bottom of blade be provided with logical groove looks adaptation's slide column, the bottom surface bottom of blade be provided with spout looks adaptation's slider, the carousel is configured to can wind the axis rotation of carousel is in order to drive a plurality of the blade enlarges or contracts the regulation hole.

Further, the blades are of an arc-shaped structure, the head ends of the blades are hinged to the driving disc and are arranged close to the edge of the driving disc, the tail ends of the blades are arranged in a stacked mode to cover the inner through holes, the head ends of the blades are connected through a transmission piece, and at least one blade is configured to rotate around the head end to drive the blades to expand or contract the adjusting holes.

Further, the detection component comprises one or a combination of a laser radar detection element, an ultrasonic detection element and an infrared detection element.

The present utility model also provides a CT system comprising:

a CT scanning frame;

a scanning bed; and

an X-ray protection device according to any one of the preceding claims.

Further, the X-ray protection device is arranged on the CT scanning frame.

Due to the application of the technical scheme, the application has the beneficial effects compared with the prior art that:

the application provides an X-ray protection device is through setting up the X-ray protection subassembly that is iris structure in CT scanning frame or in one side of CT scanning frame independently to set up the detection component that is used for detecting the position of waiting to examine the target on the scanning bed and the size of waiting to examine the target that is located X-ray protection subassembly department, expand or shrink through the regulation hole that supplies the scanning bed to pass through on the control component according to the detection result of detection component's the continuous control X-ray protection subassembly, compare with prior art, need not medical personnel and carry out loaded down with trivial details wearing safeguard measures to every patient's inspection position, through the cooperation of control component, detection component and X-ray protection subassembly, realize automatic real-time protection function, and X-ray protection subassembly need not repeatedly to arrange when using at every turn, can save time and manpower, and then improve detection efficiency. Meanwhile, the control component continuously controls the X-ray protection component to act to shrink or expand the adjusting hole according to the position of the to-be-detected object detected by the detection component and the size of the to-be-detected object to be introduced into the X-ray protection component so as to adapt to the sizes of patients with different body types and different body parts of the patients, the protection precision is high, the occurrence of the condition of X-ray leakage can be avoided, and the detection safety is high.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view showing an exploded structure of a part of the structure of an X-ray protection assembly according to embodiment 1 of the present utility model;

FIG. 2 is a schematic view showing an exploded structure of a part of the structure of the X-ray protection assembly according to embodiment 2 of the present utility model;

FIG. 3 is a schematic view showing a part of the structure of an X-ray protection assembly according to embodiment 3 of the present utility model;

fig. 4 is a schematic structural diagram of a CT system according to embodiment 4 of the present utility model.

Reference numerals illustrate:

1-a housing; 11-an outer through hole; 2-a drive disk; 21-chassis; 211-a chute; 22-a turntable; 221-embedding grooves; 222-tooth slot; 223-through groove; 23-inner through holes; 24-hollow shaft; 241-card slot; 3-leaf blades; 31-a spool; 32-a slider; 33-a circular collar; 4-adjusting holes; 5-a transmission member; 6-rotating shaft; 7-a transmission gear; 8-a power gear set; 81-a drive gear; 82-limiting gears; a 10-X-ray protection assembly; 20-a detection assembly; 30-a control assembly; a 100-CT scanning frame; 200-scanning bed.

Detailed Description

In order to make the present application solution better understood by those skilled in the art, the following description will be made in detail and with reference to the accompanying drawings in the embodiments of the present application, it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the present application described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present utility model and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.

Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present utility model will be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "mounted," "configured," "provided," "connected," "coupled," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Example 1

Referring to fig. 1 and 4, the present embodiment provides an X-ray protection device for a CT system, for use with a CT scanner gantry 100 and a scanner couch 200, the X-ray protection device including an X-ray protection device 10, a detection device 20, and a control device 30, wherein the detection device 20 is configured to detect a position of an object to be detected and a size of the object to be detected that is about to enter the X-ray protection device 10. It should be noted that, the object to be detected by the detecting component 20 is the scan bed 200 carrying the patient, and the size of the object to be detected is the maximum height and the maximum width of the scan bed 200 and the whole body part of the patient. In this embodiment, the detection assembly 20 includes one or more of a laser radar detection element, an ultrasonic detection element and an infrared detection element, which are conventionally disposed, and will not be described herein.

In this embodiment, the detection assembly 20 may be disposed on the scan bed 200, or disposed on the X-ray protection assembly 10, or disposed on the CT scan gantry 100, or disposed in the CT scan gantry 100, which is not specifically limited in this application, and it is sufficient to detect the position and size of the object to be detected.

The X-ray protection assembly 10 is installed on the CT scan gantry 100 or is independently disposed at one side of the CT scan gantry 100, the X-ray protection assembly 10 has an iris structure for shielding a scan hole of the CT scan gantry 100, the X-ray protection assembly 10 has an adjustment hole 4 through which the scan bed 200 passes, the aperture of the adjustment hole 4 is adjustable, and the adjustment hole is coaxially disposed with the scan hole (not shown).

Specifically, the X-ray protection assembly 10 comprises a housing 1, a driving disc 2 arranged in the housing 1, and a plurality of blades 3 arranged on the driving disc 2 at equal intervals along the circumferential direction, wherein the blades 3 are enclosed to form an adjusting hole 4, an outer through hole 11 is arranged on the housing 1, an inner through hole 23 is arranged on the driving disc 2, and the outer through hole 11, the inner through hole 23 and the adjusting hole 4 are coaxially arranged. Wherein, the blade 3 is used for shielding the scattered X-rays which are emitted by the CT scanning frame 100 and are not required for imaging, and has the function of shielding the X-rays, and the material of the blade 3 is one or a combination of a plurality of metals of lead, tungsten, molybdenum, copper and alloys containing lead, tungsten, molybdenum and copper. The present application is not particularly limited thereto.

In this embodiment, the driving disc 2 includes a chassis 21 and a turntable 22 disposed at one side of the chassis 21, a plurality of blades 3 are disposed between the turntable 22 and the chassis 21, the blades 3 are in an arc structure and span the inner through hole 23, the plurality of blades 3 are stacked to cover the inner through hole 23, one end of each blade 3 is hinged on the chassis 21, the other end is fixedly connected with the turntable 22, and the turntable 22 is configured to rotate around an axis of the turntable 22 to drive the plurality of blades 3 to expand or contract the adjusting hole 4.

Specifically, the chassis 21 is fixed on the inner side wall of one end face of the casing 1, the turntable 22 is rotatably arranged on the inner side wall of the other end face of the casing 1 through the hollow shaft 24, the head end of the hollow shaft 24 is fixed with the inner side wall of the casing 1, the tail end is suspended in the casing 1, the turntable 22 is sleeved on the tail end of the hollow shaft 24, and the blades 3 are arranged on one face, close to the tail end, of the driving disc 2.

In order to prevent the rotary table 22 from shaking, a clamping groove 241 is formed on the tail end of the hollow shaft 24 along the circumferential direction and recessed inwards from the outer surface, the rotary table 22 is clamped in the clamping groove 241, the thickness of the clamping groove 241 is matched with the thickness of the rotary table 22, meanwhile, in order to avoid the hollow shaft 24 from influencing the moving path of the blade 3, a recessed groove 221 is formed on one surface of the rotary table 22, which is close to the tail end of the hollow shaft 24, and the shape of the recessed groove 221 is matched with the shape of the hollow shaft 24, so that the tail end of the hollow shaft 24 can be accommodated in the recessed groove 221, and the tail end of the hollow shaft 24 is flush with the end surface of the rotary table 22.

The turntable 22 is rotatable about the axis of the hollow shaft 24 under the drive of a drive mechanism (not shown) comprising a drive motor for transmitting the drive force of the drive motor to a transmission structure (not shown) of the turntable 22, in particular a gear transmission structure, on at least part of the outer periphery of the turntable 22 there being arranged tooth slots 222, which tooth slots 222 mesh with gears in the gear transmission structure to cause the turntable 22 to rotate about the axis of the turntable 22 under the drive of the drive motor. The gear transmission structure is a conventional technical means and will not be described in detail herein.

The control component 30 is respectively connected with the detection component 20 and the X-ray protection component 10 in a signal way, and the control component 30 controls the expansion or contraction of the adjusting hole 4 according to the detection result of the detection component 20. It should be understood that, in the present embodiment, the control assembly 30 should include at least a processor (not shown) and a signal transceiver unit (not shown).

The processor may be a central processing unit, and may also be other general purpose processors, digital signal processors, application specific integrated circuits, ready-made programmable gate arrays or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like, which have signal processing, calculating, judging functions, the detecting component 20 is used for detecting the position of the object to be detected and the size of the object to be detected located at the X-ray protection component 10, and the control component 30 calculates the rotation angle of the driving disk 2 according to the maximum height and the maximum width of the detected object to be detected, which are obtained by detection and are about to enter the X-ray protection component 10, and combines with the preset moving speed of the scanning bed 200, so that the adjusting holes 4 formed by surrounding the plurality of blades 3 are contracted or expanded in real time to be adapted to the size of the body part of the patient to be entered into the X-ray protection component 10, thereby ensuring the protection precision, avoiding the occurrence of X-ray leakage, and improving the detection safety. The moving speed of the scanner bed 200 may be set to a fixed value in advance.

Example 2

Referring to fig. 2 and 4, the present embodiment provides an X-ray protection device for a CT system, which is also used in conjunction with a CT scanner gantry 100 and a scanner couch 200. The structure of the X-ray protection device in this embodiment is similar to that in embodiment 1, except that: the structure of the X-ray protection assembly 10 is different, and it should be noted that the X-ray protection assembly 10 functions the same as that in embodiment 1 and is also an iris type structure.

In this embodiment, the blades 3 are in a triangle structure, tip side walls of adjacent blades 3 are attached to each other to cover the inner through hole 23, the driving disc 2 includes a chassis 21 and a turntable 22 disposed on one side of the chassis 21, a plurality of blades 3 are disposed between the turntable 22 and the chassis 21, a plurality of sliding grooves 211 are formed on the chassis 21, the sliding grooves 211 are connected end to end in sequence to form a regular polygon structure, a plurality of through grooves 223 are formed on the turntable 22, the through grooves 223 are disposed on the center position right above the corresponding sliding grooves 211, the through grooves 223 extend along the radial direction of the inner through hole 23, sliding columns 31 are disposed at the bottom ends of the top surfaces of the blades 3 and are matched with the through grooves 223, sliding blocks 32 are disposed at the bottom ends of the bottom surfaces of the blades 3 and are matched with the sliding grooves 211, and the turntable 22 is configured to rotate around the axis of the turntable 22 to drive the blades 3 to slide along the corresponding sliding grooves 211 to expand or contract the regulating holes.

Specifically, the chassis 21 is fixed on an inner side wall of one end face of the housing 1, the turntable 22 is rotatably disposed on an inner side wall of the other end face of the housing 1 through the hollow shaft 24, an assembly structure of the turntable 22 and the hollow shaft 24 is the same as an assembly structure of the turntable 22 and the hollow shaft 24 in embodiment 1, the turntable 22 rotates around an axis of the turntable 22 under the driving of a driving mechanism (not shown), and the driving mechanism has the same structure as that in embodiment 1, and detailed description thereof will be omitted herein.

Example 3

Referring to fig. 3 and 4, the present embodiment provides an X-ray protection device for a CT system, which is also used in conjunction with a CT scanner gantry 100 and a scanner couch 200. The structure of the X-ray protection device in this embodiment is similar to that in embodiment 1, except that: the structure of the X-ray protection assembly 10 is different, and it should be noted that the X-ray protection assembly 10 functions the same as that in embodiment 1.

In this embodiment, the blades 3 are in an arc structure, the head ends of the blades 3 are hinged on the driving disk 2 and are disposed near the edge of the driving disk 2, the tail ends of the blades 3 are arranged in a stacked manner to cover the inner through hole 23, the head ends of the blades 3 are connected through the transmission member 5, and at least one blade 3 is configured to rotate around the head end to drive the blades 3 to rotate, so as to expand or contract the adjusting hole 4.

Specifically, one side of the driving disc 2 is fixed on the inner side wall of one end face of the casing 1, a plurality of rotating shafts 6 are arranged on the other side of the driving disc 2 at equal intervals along the circumferential direction, round lantern rings 33 are arranged on the head ends of the blades 3, the round lantern rings 33 of the blades 3 are sleeved on the rotating shafts 6 one by one, and each round lantern ring 33 is sleeved with a transmission gear 7, the transmission piece 5 is a chain ring, the chain ring is sleeved on the transmission gears of the blades 3, the blades 3 are connected through the chain ring in a transmission manner, a power gear set 8 is arranged between any two rotating shafts 6, the power gear set 8 comprises a driving gear 81 and two limiting gears 82 which are hinged on the driving disc 2 and meshed with the chain ring, the two limiting gears 82 are respectively arranged on two sides of the driving gear 81 and used for limiting the relative positions of the chain ring and the driving gear 81, the driving gear 81 is used for being connected with a driving motor (not shown) so as to transmit the driving force of the driving motor to each blade 3 through the chain ring, and the driving structure is a conventional transmission structure, and details are omitted.

Example 4

The present utility model also provides a CT system comprising a CT scanner housing 100, a scanner couch 200, and an X-ray shielding device. The structure of the X-ray protection device is the same as that of the foregoing embodiment 1, embodiment 2 or embodiment 3, and the foregoing embodiment can be specifically referred to, and details thereof will not be described herein. In the present embodiment, the number of the X-ray protectors is two, and the two X-ray protectors are respectively disposed on the front and rear sides of the CT scanner frame 100. The CT scanner gantry 100 and the scanner couch 200 are both conventional.

Finally, it should be noted that the foregoing description is only a preferred embodiment of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof, and any modifications, equivalents, improvements or changes thereof may be made without departing from the spirit and principle of the present utility model.

Claims

1. An X-ray protection device for use with a CT scanner gantry and a scanner couch, comprising:

2. An X-ray protection device for a CT system according to claim 1, wherein said X-ray protection assembly comprises a housing, a driving disk disposed in said housing, and a plurality of blades disposed on said driving disk at equal intervals in a circumferential direction, said plurality of blades enclosing to form said adjustment hole, an outer through hole is disposed on said housing, an inner through hole is disposed on said driving disk, and said outer through hole, said inner through hole and said adjustment hole are disposed coaxially.

3. An X-ray protection device for a CT system according to claim 2, wherein the number of blades is at least four.

4. An X-ray protection device for a CT system according to claim 3, wherein said drive plate comprises a chassis and a turntable disposed on one side of said chassis, a plurality of said blades disposed between said turntable and said chassis, said blades being of arcuate configuration and spanning said inner throughbore, a plurality of said blades being arranged in a stack to cover said inner throughbore;

5. An X-ray protection device for a CT system according to claim 3, wherein said blades are of triangular configuration, tip side walls of adjacent said blades are attached to cover said inner through-hole, said drive plate comprises a chassis and a turntable disposed on one side of said chassis, a plurality of said blades being disposed between said turntable and said chassis;

6. An X-ray protection device for a CT system according to claim 3, wherein the blades are of an arc-shaped structure, the head ends of the blades are hinged to the driving disk and are disposed near the edge of the driving disk, the tail ends of a plurality of the blades are arranged in a stacked manner to cover the inner through hole, the head ends of a plurality of the blades are connected by a transmission member, and at least one of the blades is configured to rotate around the head end to drive a plurality of the blades to expand or contract the adjustment hole.

7. An X-ray protection device for a CT system according to claim 1, wherein said detection assembly comprises one or a combination of a lidar detection element, an ultrasound detection element and an infrared detection element.

8. A CT system, comprising:

a CT scanning frame;

a scanning bed; and

the X-ray protection device according to any one of claims 1 to 7.

9. The CT system of claim 8, wherein the X-ray shield is disposed on the CT scanner gantry.