CN216167490U - Sensor selection module and medical X-ray photography system - Google Patents
Sensor selection module and medical X-ray photography system Download PDFInfo
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- CN216167490U CN216167490U CN202121944409.0U CN202121944409U CN216167490U CN 216167490 U CN216167490 U CN 216167490U CN 202121944409 U CN202121944409 U CN 202121944409U CN 216167490 U CN216167490 U CN 216167490U
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Abstract
The present application relates to the field of medical equipment technology, and in particular, to a sensor selection module and a medical X-ray radiography system. The sensor selection module includes: a light emitting section; at least two sensors, wherein the sensors are positioned on one side of the patient to be measured away from the light-emitting part; the light transmission part is provided with at least two marks, and the marks correspond to the sensors one by one; wherein when the light from the light emitting section is irradiated to the light transmitting section, the mark can be projected so that the sensor corresponding to the mark is selected based on the projection. The sensor selection module and the medical X-ray photography system can be used for a DR system in which a patient lies, so that when the patient lies for DR examination, a doctor can correctly select a proper sensor according to the relative position of an observation sensor and a human tissue organ to be detected, thereby realizing automatic exposure control, and the device has the advantages of simple structure and low cost.
Description
Technical Field
The present application relates to the field of medical equipment technology, and in particular, to a sensor selection module and a medical X-ray radiography system.
Background
In the course of examination, the existing medical radiography systems (DR) are equipped with automatic exposure control systems, with automatic exposure detection sensors arranged in front of the flat panel detector of the DR and behind the patient's body. When the DR examination is carried out, a doctor selects one automatic exposure detection sensor according to the relative position of the observation sensor and the human tissue organ to be detected, and when the signal detected by the selected automatic exposure detection sensor reaches a preset value, the automatic exposure detection sensor sends a control signal to the control module, so that the control module closes the ray and stops exposure.
The automatic exposure control system in the prior art is generally only applied to a DR system in a standing posture of a patient, and a doctor cannot correctly select a proper automatic exposure detection sensor according to observation of the relative position of the automatic exposure detection sensor and a human tissue organ to be detected because the DR system enabling the patient to lie has a bed and a bed board shields the automatic exposure monitoring sensor of the automatic exposure control system, so that the automatic exposure control system in the prior art cannot be applied to the DR system for the patient to lie.
SUMMERY OF THE UTILITY MODEL
The application provides a sensor selection module and medical X-ray photography system, this sensor selection module and medical X-ray photography system can be used for the DR system that patient lies, make patient when lying and do the DR inspection, and the doctor can come the correct sensor of chooseing for use according to the relative position who observes the sensor and await measuring human tissue organ to realize automatic exposure control, and the device simple structure, it is with low costs.
A first aspect of the present application provides a sensor selection module, comprising: a light emitting section; at least two sensors, wherein the sensors are positioned on one side of the patient to be measured away from the light-emitting part; the light transmission part is provided with at least two marks, and the marks correspond to the sensors one by one;
wherein when the light from the light emitting section is irradiated to the light transmitting section, the mark can be projected so that the sensor corresponding to the mark is selected based on the projection.
In one possible design, the light-transmitting portion is a transparent plate printed with the indicia.
In one possible design, the light-transmitting portion is provided with 3 of the marks arranged in a delta shape, and the sensor selection module includes 3 of the sensors arranged in a delta shape.
In one possible design, the shape of the mark includes one or more of a triangle, a rectangle, a circle, a diamond, and an irregular shape.
In a possible design, the material of the light-transmitting part is one of nylon, organic glass, glass and plastic.
A second aspect of the present application provides a medical radiography system, comprising: an X-ray generator and an X-ray receiver; a sensor selection module, wherein the sensor selection module is the sensor selection module; a control module capable of receiving signals of the sensor to control the X-ray generator to be turned off.
In one possible design, the medical radiography system further comprises a beam limiter, wherein the beam limiter is positioned between the X-ray generator and a patient to be measured; the light emitting portion and the light transmitting portion are attached to the beam limiter.
In one possible design, the beam limiter is provided with a through hole or an imprint, which forms the marking.
In the application, when the light of the light emitting part irradiates the light transmission part, the mark of the light transmission part can be projected to a patient to be measured, a doctor can select the mark corresponding to the part to be measured of the patient to be measured to be a selected mark according to the part to be measured of the patient to be measured, and the projection generated by the mark of the light transmission part corresponds to the position of the sensor one by one, so that the sensor corresponding to the selected mark one by one can be selected as a selected sensor according to the selected mark, and the selected sensor is used as a sensor for automatic exposure control.
In the process of DR examination, when the patient to be detected stands, the sensor is positioned behind the body of the patient to be detected, and the doctor selects a proper sensor as the sensor for automatic exposure control according to the relative position of the observation sensor and the part to be detected of the patient to be detected, or selects a proper sensor as the sensor for automatic exposure control through the sensor selection module. When the patient to be measured lies in the bed board, the bed board has sheltered from the sensor, and the doctor can't select the sensor through observing the relative position of sensor and the position that awaits measuring patient's the measuring position, and at this moment, the doctor can select suitable sensor in order to realize automatic exposure control through the sensor selection module in this application to avoided selecting improper sensor to cause the sensor to detect false signal and terminate the exposure in advance. Therefore, the sensor selection module in the present application can be used in an environment where a patient to be measured stands and also in an environment where the patient to be measured lies, so that the sensor selection module has a wide application range, and has advantages of a simple structure and low cost because the sensor selection module is realized by the light emitting part and the light transmitting part.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
FIG. 1 is a schematic diagram of a medical radiography system in one embodiment in which a patient is lying on a bed plate;
FIG. 2 is a diagram of the sensor of FIG. 1 corresponding to indicia on a transparent portion in a first embodiment;
FIG. 3 is a schematic illustration of the sensor and transparent portion of FIG. 2 with indicia in one particular embodiment;
FIG. 4 is a schematic view of the sensor and transparent portion indicia of FIG. 2 in another embodiment.
Reference numerals:
1-X-ray generator;
2-a beam limiter;
3-an X-ray beam;
4-an X-ray receiver;
5-bed board;
6-patient to be tested;
7-a data processing module;
8-image display;
9-a sensor;
10-a control module;
11-a light-transmitting portion;
12-labeling;
13-light emitting part.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
Detailed Description
For better understanding of the technical solutions of the present application, the following detailed descriptions of the embodiments of the present application are provided with reference to the accompanying drawings.
It should be understood that the embodiments described are only a few embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
It should be noted that the terms "upper", "lower", "left", "right", and the like used in the embodiments of the present application are described in terms of the angles shown in the drawings, and should not be construed as limiting the embodiments of the present application. In addition, in this context, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on "or" under "the other element or be indirectly on" or "under" the other element via an intermediate element.
The present application provides a sensor selection module for selecting an appropriate sensor in a medical radiography system. As shown in fig. 1 and 2, the sensor selection module includes: a light emitting section 13; at least two sensors 9, wherein the sensors 9 are positioned on one side of the patient 6 to be measured away from the light-emitting part 13; the light transmission part 11, the light transmission part 11 has at least two marks 12, and the mark 12 corresponds to sensor 9 one-to-one; when the light from the light emitting unit 13 is irradiated to the light transmitting unit 11, the mark 12 can be projected so that the sensor 9 corresponding to the mark 12 can be selected according to the projection.
In this embodiment, when the light from the light emitting unit 13 is irradiated to the light transmitting unit 11, the mark 12 of the light transmitting unit 11 can be projected onto the patient to be measured, the doctor can select the mark 12 corresponding to the part to be measured as the selected mark based on the part to be measured of the patient to be measured 6, and the projection generated by the mark 12 of the light transmitting unit 11 corresponds to the position of the sensor 9 one by one, so that the sensor 9 corresponding to the selected mark one by one can be selected as the selected sensor based on the selected mark, and the selected sensor can be used as the sensor 9 for automatic exposure control.
In the process of performing DR examination, when the patient 6 to be measured stands, the sensor 9 is positioned behind the body of the patient 6 to be measured, and the doctor selects an appropriate sensor 9 as the sensor 9 for automatic exposure control according to the relative position of the observation sensor 9 and the part to be measured of the patient 6 to be measured, or selects an appropriate sensor 9 as the sensor 9 for automatic exposure control through the sensor selection module. When patient 6 that awaits measuring couches in bed board 5, bed board 5 has sheltered from sensor 9, and the doctor can't select sensor 9 through the relative position who observes sensor 9 and the position of awaiting measuring of patient 6 that awaits measuring, and at this moment, the doctor can select suitable sensor 9 in order to realize automatic exposure control through the sensor selection module in this application to avoided selecting improper sensor 9 to cause sensor 9 to detect false signal and terminate the exposure in advance. Therefore, the sensor selection module in the present application can be used in an environment where the patient 6 to be measured stands and also in an environment where the patient 6 to be measured lies, so that the sensor selection module has a wide application range, and the sensor selection module is realized by the light emitting portion 13 and the light transmitting portion 11, so that the sensor selection module has advantages of simple structure and low cost.
Wherein, the sensor 9 for automatic exposure control can be a gas ionization chamber, the automatic exposure control is that the sensor 9 detects the exposure action according to the X-ray exposure signal transmitted through the sensor 9, when the exposure dose reaches the preset threshold value in the sensor 9, the sensor 9 outputs a control signal to control the exposure to be finished.
In one embodiment, as shown in fig. 2, the light-transmissive portion 11 is a transparent plate printed with indicia 12.
In this embodiment, when printing opacity portion 11 is a transparent plate, have simple structure, with low costs, be convenient for advantage such as dismouting, and because the texture of transparent plate is frivolous, the light transmissivity is good for the light source can pass through the light-passing board to the at utmost, improves the projected definition of mark 12, and this transparent plate can not influence the exposure, makes the detection exposure signal that sensor 9 can be accurate, has guaranteed the accuracy nature of automatic exposure control. In addition, the preparation process of printing the mark 12 corresponding to the sensor 9 on the transparent plate is simple, and the manufacturing cost is further reduced.
Specifically, as shown in fig. 2, the light-transmitting portion 11 is provided with 3 marks 12 arranged in a delta shape, and the sensor selection module includes 3 sensors 9 arranged in a delta shape.
In this embodiment, the 3 marks 12 of the light-transmitting portion 11 are arranged in a delta shape, so that the projection projected by the marks 12 completely corresponds to the positions of the sensors 9 arranged in a delta shape in the sensor selection module 3, when the patient 6 to be measured lies on the bed board 5, the doctor can correctly select the appropriate sensor 9 according to the projection of the marks 12 to realize automatic exposure control, and the accuracy of the doctor in selecting the sensor 9 is further improved.
In addition, because the sensors 9 are arranged in a delta shape, the part to be detected of the patient 6 to be detected can be positioned at the detection center position of the sensor 9 by selecting different sensors 9 or different combinations of the sensors 9 according to the type (children or adults) of the patient 6 to be detected and the body position of the patient 6 to be detected, so that the sensor 9 detects a correct exposure signal, the exposure time is accurately controlled, the accuracy of automatic exposure control is improved, and the waste film rate is reduced. Therefore, when the 3 sensors 9 of the sensor selection module are arranged in a delta shape, the detection field of view of the automatic exposure control can be covered over with the least number of sensors 9, and the detection field of view of the automatic exposure control can be made more flexible by selection of different sensors 9 or combinations of different sensors 9.
Alternatively, the sensor selection module may further include more than three sensors 9, and the more than three sensors 9 may be distributed in other shapes, such as a square shape, a diamond shape, and the like.
More specifically, as shown in fig. 2 and 3, the shape of the markers 12 includes one or more of a triangle, a rectangle, a circle, a diamond, and an irregular shape.
In this embodiment, when the shapes of the 3 marks 12 on the light-transmitting portion 11 are different, the projection shapes of the marks 12 are different, and the 3 different sensors 9 can be calibrated and distinguished, so that a doctor can quickly determine the selected sensor 9 according to the projection shapes of the different marks 12 during examination to start the selected sensor 9, and the work efficiency of the doctor is improved.
Each mark 12 may be three rectangles or other figures with different marks as shown in fig. 2, or may be a combination of a triangle, a rectangle, a circle, a diamond, or other irregular figures as shown in fig. 3, as long as each mark 12 can be distinguished.
In a specific embodiment, the material of the light-transmitting portion 11 is one of nylon, organic glass, and plastic.
In this embodiment, when the material of the light-transmitting portion 11 is one of nylon, organic glass, and plastic, the light-transmitting portion has the advantages of low manufacturing cost and good light-transmitting property, so that the projection is clearer and the light source and the exposure are not affected.
The light-transmitting portion 11 may be made of other light-transmitting materials, and is not limited herein.
The present application also provides a medical X-ray radiography system, as shown in fig. 1, the medical X-ray radiography system including: an X-ray generator 1 and an X-ray receiver 4; the sensor selection module is the above sensor selection module; a control module 10, wherein the control module 10 can receive the signal of the sensor 9 to control the X-ray generator 1 to be switched off.
In this embodiment, in the process of performing DR examination, when the patient 6 to be measured stands, the sensor 9 is located behind the body of the patient 6 to be measured, and the doctor selects an appropriate sensor 9 as the sensor for automatic exposure control according to the relative position between the observation sensor 9 and the part to be measured of the patient 6 to be measured, or selects an appropriate sensor 9 as the sensor for automatic exposure control through the sensor selection module. When patient 6 that awaits measuring couches in bed board 5, bed board 5 has sheltered from sensor 9, and the doctor can't select the sensor through observing the relative position of the position of awaiting measuring of sensor 9 and patient 6 that awaits measuring, and at this moment, the doctor can select suitable sensor 9 in order to realize automatic exposure control through the sensor selection module in this application to avoided selecting improper sensor 9 to cause sensor 9 to detect false signal and terminate the exposure in advance. Therefore, the sensor selection module in the present application can be used in an environment where the patient 6 to be measured stands and also in an environment where the patient 6 to be measured lies, so that the sensor selection module has a wide application range, and the sensor selection module is realized by the light emitting portion 13 and the light transmitting portion 11, so that the sensor selection module has advantages of simple structure and low cost.
Wherein, the control module 10 is connected (including electrical connection or signal connection) with the sensor 9 and the X-ray generator 1, a doctor can quickly select a proper sensor 9 as the sensor 9 for automatic exposure control through the sensor selection module in the DR examination process, after the X-ray generator 1 is started, the X-ray generator 1 can generate the X-ray beam 3 for exposure, the sensor 9 detects that the X-ray generator 1 is performing exposure action through the exposure signal, at this time, the sensor 9 converts the detected X-ray exposure signal into an electrical signal and accumulates the electrical signal into a dosage value, when the dosage value reaches a threshold value preset by the sensor 9, namely, the exposure dosage reaches a required dosage, the sensor 9 outputs a control signal to the control module 10, the control module 10 receives the control signal, the X-ray generator 1 is closed, the exposure is stopped, thereby reducing the damage of additional radiation continuously exposed to the patient 6 to be detected and the doctor, the waste sheet rate is reduced, and the cost is saved.
In the exposure process, the X-ray receiver 4 can receive an X-ray signal of the X-ray beam 3 and convert the X-ray signal into an electric signal, the electric signal is converted into a digital signal through the analog-to-digital converter, the X-ray receiver 4 sends the acquired digital signal of the exposure image to the data processing module 7 connected with the X-ray receiver for storage and post-processing, and the digital signal is displayed through the image display 8, so that a doctor can judge the physical condition of the patient 6 to be detected according to the displayed image.
In a specific embodiment, as shown in fig. 1, the medical radiography system further includes a beam limiter 2, the beam limiter 2 is located between the X-ray generator 1 and the patient 6 to be measured; the light emitting portion 13 and the light transmitting portion 11 are attached to the beam limiter 2.
In this embodiment, the beam limiter 2 is located between the X-ray generator 1 and the patient 6 to be measured, and can shield unnecessary primary X-rays generated by the X-ray generator 1, and form the X-ray beam 3, thereby strictly controlling the size of the X-ray beam 3, changing the irradiation range of the X-ray beam 3 in practical use, limiting the irradiation range of the X-ray beam in a required minimum range, and blocking the leakage rays generated by the X-ray generator 1 as much as possible, preventing the leakage rays and the exposure deviation caused by the detection range of the sensor 9 in which the unnecessary exposure area in the air is in automatic exposure control, improving the image quality of the X-ray photograph, and simultaneously, reducing the exposure dose of the X-rays received by the patient 6 to be measured and the doctor as much as possible, and reducing the damage caused by the radiation to the patient 6 to be measured and the doctor.
In addition, since the X-ray is invisible, it is impossible to predict whether the X-ray beam 3 meets the actual requirement, and mounting the light emitting unit 13 in the beam limiter 2 can simulate the radiation source of the X-ray generator, so that the beam limiter 2 can adjust the irradiation range of the beam according to the visible light beam generated by the light emitting unit 13, thereby adjusting the irradiation range of the X-ray beam 3, and at the same time, the visible light of the light emitting unit 13 can project the mark 12 mounted on the light transmitting portion 11 of the beam limiter 2, thereby enabling the doctor to select an appropriate sensor 9 for automatic exposure control. Therefore, when the light emitting unit 13 of the sensor selection module is realized by the light emitting unit of the beam limiter 2 itself, it is not necessary to separately provide the light emitting unit 13 for the sensor selection module, and the configuration of the X-ray imaging system is simplified.
In other embodiments, as shown in fig. 1 and 4, the beam limiter 2 is provided with through holes or markings, which form the markings 12.
In the embodiment, the through hole or the mark is arranged at the position of the beam limiter 2 on the patient 6 to be measured, the mark 12 formed by the through hole or the mark can be projected by visible light generated by the light emitting part 13 in the beam limiter 2 to generate projection, the generated projection positions correspond to the positions of the sensors 9 one by one, at the moment, the light-transmitting part 11 is the beam limiter 2, and the light-transmitting part 11 and the beam limiter 2 are of an integrated structure, so that the medical X-ray photography system is simplified, the light-transmitting part 11 does not need to be additionally arranged in the using process, and the working efficiency of doctors is improved.
The application also provides a control method of the medical X-ray photography system, the medical X-ray photography system is the medical X-ray photography system, and the control method comprises the following steps:
s1: the light emitting part 13 emits light to the light transmitting part 11 so that the mark 12 of the light transmitting part 11 is projected to the patient 6;
s2: selecting a mark 12 closest to the part to be detected as a selected mark according to the part to be detected of the patient 6 to be detected, and selecting a sensor 9 corresponding to the selected mark as a selected sensor;
s3: the selected sensor 9 is turned on.
In the control method, when the patient 6 to be tested lies on the bed plate 5, the bed plate 5 shields the sensor 9, and a doctor can select the appropriate sensor 9 through the sensor selection module. Specifically, the light emitting part 13 is controlled to emit light first, so that the mark 12 of the light transmitting part 11 forms a projection on the body of the patient 6 to be measured, then the mark 12 with the smallest distance between the projection and the tissue to be measured of the patient 6 to be measured is selected as a selected mark, and the mark 12 corresponds to the sensor 9 one by one, so that the sensor 9 corresponding to the selected mark is selected as the selected sensor, namely the selected sensor is used as the sensor 9 for exposure control, thereby avoiding the behavior that the sensor 9 detects an error signal due to the selection of an improper sensor 9, and terminating the exposure early, and improving the reliability of the exposure control.
In an embodiment, after step S3, the method for controlling a medical radiography system further includes:
s4: starting the X-ray generator 1 and the X-ray receiver 4;
s5: the control module 10 controls the X-ray generator 1 to be turned off when receiving a signal that the dosage of the X-rays of the selected sensor 9 reaches a preset value.
In this embodiment, the control module 10 is connected (including electrical connection or signal connection) with the sensor 9 and the X-ray generator 1, a doctor can quickly select a proper sensor 9 as the sensor 9 for automatic exposure control through the sensor selection module during a DR examination process, after the X-ray generator 1 is turned on, the X-ray generator 1 can generate the X-ray beam 3 for exposure, the sensor 9 detects that the X-ray generator 1 is performing an exposure action through an exposure signal, at this time, the sensor 9 converts the detected X-ray exposure signal into an electrical signal and accumulates the electrical signal into a dose value, when the dose value reaches a threshold value of the sensor 9, that is, the exposure dose reaches a required dose, the sensor 9 outputs a control signal to the control module 10, the control module 10 receives the control signal to turn off the X-ray generator 1 and stop exposure, thereby reducing damages of additional radiation continuously exposed to the patient 6 to be measured and the doctor, the waste sheet rate is reduced, and the cost is saved.
In the exposure process, the X-ray receiver 4 can receive the exposure signals of the X-ray beams 3 and convert the exposure signals into electric signals, the electric signals are converted into digital signals through the analog-to-digital converter, the X-ray receiver 4 sends the acquired digital signals of the exposure images to the data processing module 7 connected with the X-ray receiver for storage and post-processing, and the digital signals are displayed through the image display 8, so that a doctor can judge the physical condition of the patient 6 to be detected according to the displayed images.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (8)
1. A sensor selection module, the sensor selection module comprising:
a light emitting section (13);
at least two sensors (9), wherein the sensors (9) are positioned on one side of a patient (6) to be measured, which is far away from the light-emitting part (13);
the light-transmitting part (11), at least two marks (12) are arranged on the light-transmitting part (11), and the marks (12) correspond to the sensors (9) one by one;
wherein, when the light of the light-emitting part (13) is irradiated to the light-transmitting part (11), the mark (12) can generate projection, so that the sensor (9) corresponding to the mark (12) can be selected according to the projection.
2. Sensor selection module according to claim 1, characterized in that the light-transmissive part (11) is a transparent plate printed with the marking (12).
3. Sensor selection module according to claim 2, characterized in that the light-transmitting part (11) is provided with 3 of the marks (12) in a delta-shaped arrangement, the sensor selection module comprising 3 of the sensors (9) in a delta-shaped arrangement.
4. The sensor selection module according to any one of claims 1 to 3, wherein the shape of the markers (12) comprises one or more of a triangle, a rectangle, a circle, a diamond.
5. The sensor selection module according to any one of claims 1 to 3, wherein the material of the light-transmissive portion (11) is one of nylon, plexiglass, glass, plastic.
6. A medical radiography system characterized in that it comprises:
an X-ray generator (1) and an X-ray receiver (4);
a sensor selection module as claimed in any one of claims 1 to 5;
a control module (10), the control module (10) being capable of receiving signals of the sensor (9) to control the X-ray generator (1) to be turned off.
7. Medical radiography system according to claim 6, characterized in that the medical radiography system further comprises a beam limiter (2), which beam limiter (2) is located between the X-ray generator (1) and the patient (6) to be examined;
the light emitting section (13) and the light transmitting section (11) are attached to the beam limiter (2).
8. Medical radiography system according to claim 7, characterized in that the beam limiter (2) is provided with through holes or imprints, which form the markings (12).
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