Medical X-ray equipment and imaging method thereof

Abstract

According to the medical X-ray equipment and the imaging method thereof provided by the invention, when the examination part of a patient needs to be examined, the ionization chamber identification graph is projected, so that a user is reminded of a plurality of ionization chamber fields in the ionization chamber and the position information of each ionization chamber field. The method comprises the following steps: firstly, detecting a user's limb movement or voice, and when the detected limb movement or voice contains an instruction for selecting an ionization chamber field, determining the selected ionization chamber field, so that the selected ionization chamber field and the examination part are in a preset position relationship. A real-time image including the ionization chamber field can also be shot and displayed on the display, and an instruction which is input by the user based on the real-time image displayed on the display and is used for selecting the ionization chamber field is received to determine the selected ionization chamber field. According to the mode, a user can clearly see the position of each ionization chamber field, so that the ionization chamber needing to be used can be conveniently and quickly selected, and the use efficiency of the medical X-ray equipment is improved.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and in particular to a medical X-ray device and an imaging method thereof. Background Art

[0002] When using medical X-ray equipment such as DR (digital X-ray imaging system), doctors need to guide patients to position themselves so that the patient's examination area is in the appropriate position for the flat-panel detector, so that the X-rays emitted by the X-ray source can be detected by the flat-panel detector after passing through the patient's examination area.

[0003] After positioning, for medical X-ray equipment equipped with an ionization chamber, the doctor must go to the operating table to select the ionization chamber sensor (ionization chamber field). This requires the doctor to go back and forth between the patient and the operating table, which is time-consuming. Secondly, if the patient maintains the positioning for a long time, it can affect the accuracy of the positioning.

[0004] The existing technology is that doctors rely on their experience to communicate with patients verbally to let the patients put them in the correct shooting position. Firstly, it relies on the doctor's personal experience. Secondly, the process is time-consuming and labor-intensive, and inefficient.

[0005] Therefore, existing medical X-ray equipment is not very convenient to use and its efficiency needs to be improved. Summary of the Invention

[0006] The present invention mainly provides a medical X-ray device and an imaging method thereof, aiming to improve the utilization efficiency of the medical X-ray device.

[0007] One embodiment provides an imaging method for a medical X-ray device, including:

[0008] The examination site where the patient is received;

[0009] Projecting an ionization chamber identification diagram; the ionization chamber identification diagram is used to reflect multiple ionization chamber fields in the ionization chamber and position information of each ionization chamber field;

[0010] detecting a user's body movements or voice, and when the detected body movements or voice contain an instruction for selecting an ionization chamber field, determining the selected ionization chamber field in response to the instruction so that the selected ionization chamber field and the examination part are in a preset positional relationship; or capturing a real-time image containing the ionization chamber field and displaying it on a display, receiving an instruction for selecting an ionization chamber field input by the user based on the real-time image displayed on the display, and determining the selected ionization chamber field in response to the instruction;

[0011] Receive a shooting instruction issued by a user, and in response to the shooting instruction, control the X-ray generating device to generate and emit X-rays; receive the X-rays through the X-ray receiving device to form an X-ray image of the inspection part; and also detect the cumulative value of the residual dose of the X-ray after passing through the human body through the selected ionization chamber field; when the cumulative value of the residual dose is greater than or equal to a preset threshold, control the X-ray generating device to stop emitting X-rays.

[0012] In the method provided in one embodiment, projecting the ionization chamber identification image includes:

[0013] The ionization chamber logo is projected toward the X-ray receiving device.

[0014] In the method provided in one embodiment, before receiving a shooting instruction issued by a user, the method further includes:

[0015] Projecting a body position diagram associated with the examination part; the body position diagram is used to indicate the placement of the examination part in a preset manner;

[0016] Detecting the user's body movements or voice, and when the detected body movements or voice contain instructions for adjusting the body position map, adjusting the projected body position map in response to the instructions for adjusting the body position map so that the body position map and the examination part are in a preset positional relationship; or capturing a real-time image containing the body position map and displaying it on a display, receiving instructions for adjusting the body position map input by the user based on the real-time image displayed on the display, and adjusting the projected body position map in response to the instructions for adjusting the body position map.

[0017] In the method provided in one embodiment, before receiving a shooting instruction issued by a user, the method further includes:

[0018] Using the size of the X-ray field pre-associated with the examination part as the size of the current X-ray field, and projecting an X-ray field identification diagram for identifying the size and position of the current X-ray field toward the X-ray receiving device;

[0019] Detecting the user's body movements or voice, and when the detected body movements or voice contain instructions for adjusting the size and / or position of the current X-ray field, in response to the instructions for adjusting the size and / or position of the current X-ray field, updating the size and / or position of the current X-ray field, and updating the projected X-ray field identification map; or, capturing a real-time image containing the X-ray field identification map and displaying it on a display, receiving instructions for adjusting the size and / or position of the current X-ray field input by the user based on the real-time image displayed on the display, updating the size and / or position of the current X-ray field in response to the instructions for adjusting the size and / or position of the current X-ray field, and updating the projected X-ray field identification map.

[0020] In the method provided in one embodiment, the ionization chamber identification diagram includes multiple ionization chamber field sub-identifiers, where each ionization chamber field sub-identifier is used to identify one ionization chamber field; the arrangement of the ionization chamber field sub-identifiers in the ionization chamber identification diagram is the same as the arrangement of the ionization chamber fields of the ionization chamber, and the spacing between the ionization chamber field sub-identifiers is the same as the spacing between the ionization chamber fields of the ionization chamber; the method further includes:

[0021] The selected ionization chamber field is presented in a differentiated manner on the ionization chamber identification diagram.

[0022] In the method provided in one embodiment, the body movement includes a gesture operation; and detecting the user's body movement includes:

[0023] The 3D camera collects the depth information of the object in the field of view. When the depth information has finger features, the finger features are marked as markers, and the user's gesture operation is obtained according to the position change of each marker point; or

[0024] The position change of the UWB tag worn by the user is detected by multiple UWB base stations, and the user's gesture operation is obtained according to the position change of the UWB tag.

[0025] In the method provided in one embodiment, when the depth information has finger features, the method further includes:

[0026] A preset marker is projected onto the hand where the finger feature is located to indicate that the finger feature is detected.

[0027] In the method provided in one embodiment, detecting the user's body movements includes:

[0028] detecting that the user's body movement includes a zooming operation using multiple fingers, then determining that an instruction for adjusting the size of the current X-ray field has been received; and / or,

[0029] detecting that the user's body movement includes a tapping operation or a long-pressing operation of a finger on the ionization chamber logo, determining that an instruction for selecting an ionization chamber field has been received; and / or,

[0030] detecting that the user's body movement includes a finger rotation operation, determining that an instruction for rotating the body position map has been received; and / or,

[0031] detecting that the user's body movement includes a sliding operation of a finger, determining that an instruction for moving the body position map has been received; and / or,

[0032] If it is detected that the user's body movement includes a dragging operation of a finger, it is determined that an instruction for moving the body position map has been received.

[0033] One embodiment provides an imaging method for a medical X-ray device, including:

[0034] The examination site where the patient is received;

[0035] Projecting a body position diagram associated with the examination part; the body position diagram is used to indicate the placement of the examination part in a preset manner;

[0036] detecting a user's body movements or voice, and when the detected body movements or voice contain an instruction for adjusting the body position map, adjusting the projected body position map in response to the instruction so that the body position map and the examination part are in a preset positional relationship; or capturing a real-time image containing the body position map and displaying it on a display, receiving an instruction for adjusting the body position map input by the user based on the real-time image displayed on the display, and adjusting the projected body position map in response to the instruction;

[0037] Receive a shooting instruction issued by the user, and in response to the shooting instruction, control the X-ray generating device to generate and emit X-rays; receive the X-rays through the X-ray receiving device to form an X-ray image of the inspection part.

[0038] In the method provided in one embodiment, the body position map has a positioning marking line for marking the placement position of the examination part; and projecting the body position map associated with the examination part includes:

[0039] A body position map associated with the examination part is projected toward the X-ray receiving device.

[0040] In the method provided in one embodiment, before receiving a shooting instruction issued by a user, the method further includes:

[0041] Using the size of the X-ray field pre-associated with the examination part as the size of the current X-ray field, and projecting an X-ray field identification diagram for identifying the size and position of the current X-ray field toward the X-ray receiving device;

[0042] Detecting the user's body movements or voice, and when the detected body movements or voice contain instructions for adjusting the size and / or position of the current X-ray field, in response to the instructions for adjusting the size and / or position of the current X-ray field, updating the size and / or position of the current X-ray field, and updating the projected X-ray field identification map; or, capturing a real-time image containing the X-ray field identification map and displaying it on a display, receiving instructions for adjusting the size and / or position of the current X-ray field input by the user based on the real-time image displayed on the display, updating the size and / or position of the current X-ray field in response to the instructions for adjusting the size and / or position of the current X-ray field, and updating the projected X-ray field identification map.

[0043] In the method provided in one embodiment, the body movement includes a gesture operation; and detecting the user's body movement includes:

[0044] The 3D camera collects the depth information of the object in the field of view. When the depth information has finger features, the finger features are marked as markers, and the user's gesture operation is obtained according to the position change of each marker point; or

[0045] The position change of the UWB tag worn by the user is detected by multiple UWB base stations, and the user's gesture operation is obtained according to the position change of the UWB tag.

[0046] In the method provided in one embodiment, when the depth information has finger features, the method further includes:

[0047] A preset marker is projected onto the hand where the finger feature is located to indicate that the finger feature is detected.

[0048] In the method provided in one embodiment, detecting the user's body movements includes:

[0049] detecting that the user's body movement includes a zooming operation using multiple fingers, then determining that an instruction for adjusting the size of the current X-ray field has been received; and / or,

[0050] detecting that the user's body movement includes a finger rotation operation, determining that an instruction for rotating the body position map has been received; and / or,

[0051] detecting that the user's body movement includes a sliding operation of a finger, determining that an instruction for moving the body position map has been received; and / or,

[0052] If it is detected that the user's body movement includes a dragging operation of a finger, it is determined that an instruction for moving the body position map has been received.

[0053] One embodiment provides an imaging method for a medical X-ray device, including:

[0054] The examination site where the patient is received;

[0055] Projecting a positioning identification map; the positioning identification map is used to reflect positioning information related to the examination part;

[0056] detecting a user's body movements or voice, and when the detected body movements or voice contain an instruction for adjusting the positioning map, adjusting the positioning map and its corresponding positioning information in response to the instruction; or capturing a real-time image containing the positioning map and displaying it on a display, receiving an instruction for adjusting the positioning map input by the user based on the real-time image displayed on the display, and adjusting the positioning map and its corresponding positioning information in response to the instruction;

[0057] Receive a shooting instruction issued by the user, and in response to the shooting instruction, control the X-ray generating device to generate and emit X-rays; receive the X-rays through the X-ray receiving device to form an X-ray image of the inspection part.

[0058] In the method provided in one embodiment, the positioning identification map includes at least one of an ionization chamber identification map, a body position map, and an X-ray field identification map; the ionization chamber identification map is used to reflect multiple ionization chamber fields in the ionization chamber and the position information of each ionization chamber field; the body position map is used to indicate that the examination part is placed in a preset manner; and the X-ray field identification map is used to identify the size and position of the current X-ray field.

[0059] One embodiment provides a medical X-ray device, including:

[0060] An X-ray generating device, used for generating and emitting X-rays;

[0061] an X-ray receiving device for receiving the X-rays to form an X-ray image of the examination site;

[0062] a projection device for projecting an image;

[0063] Memory, used to store programs;

[0064] The processor is configured to execute the program stored in the memory to implement the method as described above.

[0065] One embodiment provides a computer-readable storage medium having a program stored thereon. The program can be executed by a processor to implement the method described above.

[0066] The medical X-ray equipment and imaging method provided by the present invention project an ionization chamber identification diagram when it is necessary to examine the patient's examination area, thereby prompting the user of multiple ionization chamber fields in the ionization chamber and the position information of each ionization chamber field. Then, the user's body movements or voice can be detected. When the detected body movements or voice contain instructions for selecting an ionization chamber field, the selected ionization chamber field is determined so that the selected ionization chamber field and the examination area are in a preset positional relationship. It is also possible to capture a real-time image containing the ionization chamber field and display it on a display, receive instructions for selecting the ionization chamber field input by the user based on the real-time image displayed on the display, and determine the selected ionization chamber field. This method allows the user to clearly see the position of each ionization chamber field, and then quickly and conveniently select the ionization chamber needed, thereby improving the use efficiency of the medical X-ray equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0067] Figure 1 A flowchart of an embodiment of an imaging method for a medical X-ray device provided by the present invention;

[0068] Figure 2 In the medical X-ray equipment provided by the present invention, the ionization chamber is marked Figure 1 Schematic diagram of an embodiment;

[0069] Figure 3 In the medical X-ray equipment provided by the present invention, body position map and X-ray field mark Figure 1 Schematic diagram of an embodiment;

[0070] Figure 4 A structural block diagram of an embodiment of a medical X-ray device provided by the present invention;

[0071] Figure 5 A schematic diagram of an embodiment of a medical X-ray device provided by the present invention;

[0072] Figure 6 A perspective view of an embodiment of a medical X-ray device provided by the present invention;

[0073] Figure 7 A flowchart of another embodiment of the imaging method of the medical X-ray device provided by the present invention;

[0074] Figure 8 A schematic diagram of an embodiment of a feedback device in the medical X-ray equipment provided by the present invention;

[0075] Figure 9 The present invention provides a flowchart of another embodiment of the imaging method of the medical X-ray equipment. DETAILED DESCRIPTION

[0076] The present invention will be further described in detail below by means of specific embodiments in conjunction with the accompanying drawings. Similar elements in different embodiments are numbered with associated similar elements. In the following embodiments, many detailed descriptions are provided to enable the present application to be better understood. However, those skilled in the art will readily appreciate that some of the features may be omitted in different circumstances, or may be replaced by other elements, materials, or methods. In some cases, some operations related to the present application are not shown or described in the specification. This is to avoid the core portion of the present application being overwhelmed by excessive descriptions, and for those skilled in the art, it is not necessary to describe these related operations in detail. They will fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0077] In addition, the features, operations, or characteristics described in the specification may be combined in any appropriate manner to form various embodiments. Furthermore, the steps or actions in the method description may be reordered or adjusted in a manner readily apparent to those skilled in the art. Therefore, the various sequences in the specification and drawings are provided solely for the purpose of clearly describing a particular embodiment and are not intended to be mandatory, unless otherwise specified.

[0078] The serial numbers assigned to components herein, such as "first," "second," etc., are used solely to distinguish the objects being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings).

[0079] The present invention provides a medical X-ray device and imaging method that can project the layout of the ionization chamber field to indicate the user's ionization chamber position and layout. It can also project a body position diagram associated with the examination site to prompt the user and patient positioning. Furthermore, the user can interact (provide feedback) based on the projected image to select a desired ionization chamber and adjust the body position diagram. These methods improve the efficiency of medical X-ray equipment use and user work efficiency. This is described in detail below through some embodiments.

[0080] like Figure 1 As shown, the imaging method of the medical X-ray equipment provided by the present invention includes the following steps:

[0081] Step 1: Receive the patient's examination site. Usually, a user, such as an operator of a medical X-ray device, sets the patient's examination site, and the medical X-ray device receives the patient's examination site set by the user.

[0082] Step 2: Project a positioning map. The positioning map is used to reflect the positioning information related to the examination part. The positioning information is used to indicate the placement of the examination part. For example, the positioning map may include at least one of an ionization chamber map, a body position map, and an X-ray field map. Figure 2 As shown, the ionization chamber identification diagram A is used to reflect the multiple ionization chamber fields in the ionization chamber and the location information of each ionization chamber field. The ionization chamber identification diagram A may include N ionization chamber field sub-identifiers a, where N is the number of ionization chamber fields in the ionization chamber of the medical X-ray equipment. One ionization chamber field sub-identifier a is used to identify a corresponding ionization chamber field. In the ionization chamber of the medical X-ray equipment, the N ionization chamber fields are arranged in a matrix, so the N ionization chamber field sub-identifiers a in the projected ionization chamber identification diagram A are also arranged in a matrix. That is, the arrangement of the ionization chamber field sub-identifiers a in the ionization chamber identification diagram A is the same as the arrangement of the ionization chamber fields in the ionization chamber, and the spacing between the ionization chamber field sub-identifiers is the same as the spacing between the ionization chamber fields in the ionization chamber. The ionization chamber field is usually a sensor used to detect the X-ray dose. Multiple ionization chamber fields are usually arranged in a matrix in the ionization chamber. Usually the inspection part needs to be located in front of the ionization chamber, so the projected ionization chamber logo A can guide the position of the inspection part to a certain extent. Figure 3 As shown, the body position diagram B is used to indicate how to place the examination part in a preset manner, mainly to instruct the user (operator) and the patient how to place the examination part. Figure 3 The body position diagram shown is used to indicate arm positioning for both the user and the patient. It is highly intuitive, ensuring accurate positioning of the patient for examination regardless of the duration. The X-ray field indicator C indicates the size and position of the current X-ray field. The X-ray field is the radiation field of X-rays, i.e., the range of X-ray radiation. When multiple projections of the ionization chamber indicator A, body position diagram B, and X-ray field indicator C are displayed, the centers of these positioning diagrams typically coincide, and at least partially overlap.

[0083] If the user feels that the position and size of the positioning mark are accurate, the user can operate the medical X-ray equipment to take the image, which means proceeding to the subsequent step 4. If the positioning mark needs to be adjusted, proceed to step 3.

[0084] Step 3: Adjust the positioning image and its corresponding positioning information. Since the positioning image is used to indicate the positioning information of the examination area, adjusting the positioning image is equivalent to adjusting the positioning information. The adjusted positioning information is presented in the form of the corresponding positioning image. This involves human-computer interaction, so there are many possible methods. The following examples illustrate three methods.

[0085] In one approach, the user's body movements are detected. If the detected body movements contain instructions for adjusting the positioning map, the positioning map and its corresponding positioning information are adjusted in response to the instructions. The body movements can be gestures, allowing the operator to operate next to the patient without having to return to the host computer outside the shielded room, improving work efficiency and reducing patient waiting time.

[0086] Alternatively, the system can detect user voice commands. If the detected voice commands include instructions for adjusting the positioning map, the positioning map and its corresponding positioning information are adjusted accordingly. This eliminates the need for operators to return to the host computer outside the shielded room, improving work efficiency and reducing patient waiting time.

[0087] In another approach, a real-time image containing a positioning map can be captured and displayed on a monitor. For example, a camera can be used to capture and display a video image near the X-ray receiving device. The monitor can be located inside a shielded room or on a host computer outside the room. After viewing the real-time image, the operator can operate the host computer to adjust the positioning map. Specifically, the operator receives a user-inputted instruction for adjusting the positioning map based on the real-time image displayed on the monitor and adjusts the positioning map and its corresponding positioning information in response to the instruction. In this approach, the operator does not need to enter the shielded room to instruct the patient. Instead, the patient positions the examination area according to the guidance of the positioning map, and the operator can operate the host computer throughout the process. Again, there is no need to travel back and forth between the patient and the host computer, thus improving work efficiency.

[0088] Step 4: Receive a capture command from the user. In response to this capture command, the X-ray generator is controlled to generate and emit X-rays. The X-ray receiver receives the X-rays to form an X-ray image of the examination area, which can then be displayed on a monitor. This method significantly improves the efficiency of the positioning process, which is the most time-consuming part of the entire examination process.

[0089] The above method can be performed by a medical X-ray device, or by an operator operating the medical X-ray device, or by other devices that can project a positioning identification map and adjust the positioning identification map. The following describes the process of the medical X-ray device performing the above imaging through an embodiment. Figure 4-6 As shown, the medical X-ray device includes a processor 10, an X-ray generating device 20, an X-ray receiving device 40, a projection device 50 and a memory 80.

[0090] The X-ray generating device 20 is used to generate and emit X-rays, and may include an X-ray source assembly, a high-voltage generator, a tube, a beam limiter, etc. The X-ray generating device 20 may generally be referred to as a handpiece.

[0091] The X-ray receiving device 40 is used to receive the X-rays emitted by the X-ray generating device 20 to form an X-ray image of the examination site.

[0092] The projection device 50 is used to project images, such as the aforementioned positioning identification diagram. The projection device 50 can be a projector, a laser projection device, etc., and any device type is not limited as long as it can project the positioning identification diagram.

[0093] The memory 80 is used to store programs.

[0094] The processor 10 is configured to execute the program stored in the memory 80 to implement the imaging method described in the above-described embodiment. Specifically, the processor 10 receives the patient's examination site. For example, the medical X-ray device also includes a human-computer interface device 70. The human-computer interface device 70 is configured to output visual information and receive user input, such as by using a display to output the visual information and a receiving device to receive user input. The receiving device may be a mouse, keyboard, various buttons, a touch screen, etc. The operator inputs the patient's examination site using the human-computer interface device 70, and the processor 10 receives the patient's examination site through the human-computer interface device 70. The processor 10 projects a positioning map via the projection device 50 and then adjusts the positioning map and its corresponding positioning information based on the operator's operation. Since the examination site needs to be located in front of the X-ray receiving device 40 to facilitate X-rays passing through the examination site and being received by the X-ray receiving device 40, the projection device 50 projects the positioning map, typically toward the X-ray receiving device 40. However, in some embodiments, the positioning map can be projected at other locations, such as the ground, to also provide a certain prompting function. In some cases, the X-ray receiving device 40 is located below the bed 910, and the positioning map is projected onto the bed 910. When the patient lies on the bed, the positioning map appears on the patient's body surface. In some cases, the X-ray receiving device 40 is located in the flat-panel cassette 920, and the positioning map is projected onto the flat-panel cassette 920. When the patient stands in front of the flat-panel cassette 920, the positioning map appears on the patient's body surface.

[0095] The medical X-ray device may further include a feedback device 60. Some feedback devices 60 may be used to detect the user's body movements or spoken voices. The processor 10 detects the user's body movements or spoken voices through the feedback device 60. When the detected body movements or spoken voices contain instructions for adjusting the positioning map, the processor 10 adjusts the positioning map and its corresponding positioning information in response to the instructions. Some feedback devices 60 may be used to capture images, which may be implemented by a camera, etc. The processor 10 captures a real-time image (such as a real-time video image) containing the positioning map through the feedback device 60 and displays it on the display of the human-computer interaction device 70. The processor 10 receives instructions for adjusting the positioning map input by the user based on the real-time image displayed on the display through the receiving device of the human-computer interaction device 70, and adjusts the positioning map and its corresponding positioning information in response to the instructions. The specific method for adjusting the positioning map is described in step 3 above and will not be described in detail here. The processor 10 receives a shooting instruction issued by the user, such as receiving a shooting instruction issued by the user through the exposure hand switch, and controls the X-ray generating device 20 to generate and emit X-rays in response to the shooting instruction; receives X-rays through the X-ray receiving device 40 to form an X-ray image of the inspection part, and then displays the X-ray image on the display, and can also transmit the X-ray image to the hospital's inspection system.

[0096] Since there can be multiple types of positioning identification maps, there can also be multiple positioning identification maps projected at one time, and the parameters that need to be adjusted for different positioning identification maps are not necessarily the same, the following is a detailed description of this through some embodiments for several cases.

[0097] exist Figure 7 In the illustrated embodiment, the imaging method of a medical X-ray device includes the following steps:

[0098] Step 1': Receive the patient's examination site. For example, the processor 10 receives the patient's examination site via the human-computer interface device 70, or can communicate with other devices to obtain the patient's examination site from other devices. The patient's examination site is typically set by an operator to facilitate subsequent targeted imaging by the medical X-ray equipment.

[0099] Step 2': Project the ionization chamber logo. There are many types of medical X-ray equipment, such as traditional X-ray machines, digital X-ray machines (DR), etc. This embodiment takes a digital X-ray machine as an example for explanation, which includes an ionization chamber 30. The ionization chamber 30 can be used to detect the cumulative value of the residual dose after the X-ray passes through the human body; when the cumulative value of the residual dose is greater than or equal to a preset threshold, the X-ray generator 20 is triggered to stop emitting X-rays. In some embodiments, medical X-ray equipment such as traditional X-ray machines may not have an ionization chamber, and the operator controls the X-ray dose.

[0100] The processor 10 projects an ionization chamber identification diagram A through the projection device 50. The ionization chamber identification diagram A is used to reflect the multiple ionization chamber fields in the ionization chamber and the position information of each ionization chamber field. The processor 10 can also project a body position diagram B associated with the examination part through the projection device 50. The body position diagram B is used to indicate that the examination part is placed in a preset manner. The two can be projected at the same time and can be projected to the same position. Usually, the projection device 50 projects the ionization chamber identification diagram and the body position diagram toward the X-ray receiving device. Of course, in other embodiments, the ionization chamber identification diagram and the body position diagram can also be projected to other positions, such as the ground, wall, etc. The processor 10 can also cause the projection device 50 to project an X-ray field identification diagram. Specifically, the processor 10 uses the size of the X-ray field pre-associated with the examination part as the size of the current X-ray field, and projects an X-ray field identification diagram C for identifying the size and position of the current X-ray field toward the X-ray receiving device 40.

[0101] Typically, the X-ray receiving device 40 and the ionization chamber 30 come in pairs. A medical X-ray device may have only one pair of X-ray receiving devices and ionization chambers, or multiple pairs. When a medical X-ray device has only one pair of X-ray receiving devices and ionization chambers, the X-ray generator (handpiece) 20 always faces the X-ray receiving devices, and the projection device 50 also always faces the X-ray receiving devices. The X-ray receiving devices can be placed horizontally for examinations while the patient is lying down, or vertically for examinations while the patient is standing. In this embodiment, the medical X-ray device has two pairs of X-ray receiving devices and ionization chambers: one pair is located below the bed 910, and the other pair is located within the flat-panel cassette 920. This allows the medical X-ray device to support both standing and lying patient examinations. Because there are two X-ray receiving devices, both the handpiece 20 and the projection device 50 need to switch between facing one X-ray receiving device (the bed 910) and the other (the flat-panel cassette 920). In such medical X-ray equipment, the projection device 50 has two installation positions: one is to be installed on the handpiece 20 and to be linked with the handpiece 20. The other is not to be installed on the handpiece 20, and the projection device 50 needs to be independently switched between facing the bed plate 910 and facing the flat film box 920.

[0102] If the projection device 50 is not mounted on the machine head 20, the projection device 50 can rotate so that the direction of the projected light (positioning map) is the same as the direction of the machine head 20, that is, toward the same position. In other words, the processor 10 is also used to control the rotation of the projection device 50 so that it is facing the same position as the machine head 20, either toward the bed board or toward the flat film box. Typically, the flat film box is mounted on a column and can be moved up and down along the column to adjust the height. The machine head 20 is also mounted on a column and can also be moved up and down along the column to adjust the height. The bed board can move in the horizontal plane relative to the base 930.

[0103] In order for the projection device 50 to accurately project various positioning maps (such as body position maps and / or ionization chamber maps) onto the required flat cassette or bed board, the orientation of the flat cassette or bed board must be known, that is, the relative positional relationship between the projection device 50 and the flat cassette or bed board must be known. This embodiment utilizes a detection system for detection. Specifically, the medical X-ray device of this embodiment also includes a detection system comprising multiple position sensors. The detection system is used to detect the relative distance between the projection device 50 and the corresponding ionization chamber in three coordinate directions of a three-dimensional coordinate system (such as the spatial coordinate system shown as xyz in the figure) when the head 20 is facing the bed board 910, that is, when a horizontally positioned X-ray receiving device is required, that is, when the patient is lying down for examination. This allows the position of the ionization chamber to be determined. Since the relative position of the ionization chamber and the X-ray receiving device is fixed, determining the orientation of the ionization chamber is equivalent to determining the orientation of the X-ray receiving device, and the two are equivalent. When emitting X-rays, the handpiece 20 faces the ionization chamber directly. However, since the projection device 50 is not mounted on the handpiece 20, the projection device 50 projects the image at an angle onto the flat cassette or bed. This can cause image distortion. However, the processor 10 adjusts the projection parameters based on the orientation of the X-ray receiving device to prevent distortion of the projected positioning pattern. Specifically, the processor 10 controls the rotation of the projection device 50 based on the relative distances in the three coordinate directions, directing the projection device 50 toward the ionization chamber, that is, toward the bed. The processor 10 controls the projection device 50 based on the relative distances in the three coordinate directions to adjust the projection parameters to prevent distortion of the positioning pattern projected by the projection device 50.

[0104] The detection system is also used to detect the relative distance between the projection device 50 and the ionization chamber in the three coordinate directions of the three-dimensional coordinate system when the head 20 is facing the flat plate 920, that is, when a vertically placed X-ray receiving device is required, that is, when the patient is standing for examination. The processor 10 controls the rotation of the projection device 50 based on the relative distance in the three coordinate directions, so that the projection device 50 is facing the ionization chamber, that is, toward the flat plate 920; and controls the projection device 50 to adjust the projection parameters based on the relative distance in the three coordinate directions to avoid deformation of the positioning identification diagram (such as the body position diagram and / or ionization chamber identification diagram) projected by the projection device 50. In other words, through this means, the processor ensures that the body position diagram on the bed board or flat plate is the current optimal patient positioning state, and the ionization chamber position marked on the ionization chamber identification diagram also matches the actual ionization chamber position.

[0105] When a patient is standing or lying down for an examination, the positioning map projected onto the patient's body surface may differ in size from that projected onto a flat surface or bed board. Especially when projected at an angle, the thickness of the body can cause the positioning map on the patient's body surface to be inaccurate, i.e., distorted. This embodiment can correct for these effects. Specifically, the medical X-ray equipment also includes a detection device for detecting body thickness.

[0106] The processor 10 is further configured to use the body thickness detected by the detection device to correct the relative distances in the three coordinate directions. Based on the corrected relative distances in the three coordinate directions, the processor 10 controls the projection device 50 to adjust projection parameters to prevent distortion of the positioning map projected onto the body (specifically, onto the examination site) by the projection device 50. Directly below the positioning map projected onto the body are the ionization chamber and X-ray receiving device.

[0107] If the projection device 50 is mounted on the handpiece 20, the principle is similar to that of not being mounted on the handpiece 20. However, since the projection device 50 can directly face the ionization chamber and the X-ray receiving device, two of the relative distances between the projection device 50 and the ionization chamber in the three coordinate directions of the three-dimensional coordinate system are zero. Specifically, when the patient lies on the bed 910 for an examination, the projection device 50 follows the handpiece 20 toward the horizontally positioned X-ray receiving device, that is, toward the bed 910. The light emitted by the projection device 50 projects a positioning map on the bed 910. When the patient lies on the bed 910, the positioning map will be located on the patient's body surface, so the operator can continuously see the positioning map. Similarly, when a patient stands in front of the flat-panel film box 920 for examination, the projection device 50 follows the head 20 toward the vertically placed X-ray receiving device, that is, toward the flat-panel film box 920. The light emitted by the projection device 50 projects a positioning identification map on the flat-panel film box 920. When the patient stands in front of the flat-panel film box, the positioning identification map will be located on the patient's body surface, so the operator can continue to see the positioning identification map.

[0108] Because the projection device 50 is linked to the handpiece 20, the direction of the light projected by the projection device 50 remains correct regardless of whether the patient is standing or lying down for examination. If the distance between the handpiece 20 and the X-ray receiving device remains constant, regardless of the patient or the examination site, the projection device 50 projects a fixed-size positioning map. If the distance between the handpiece 20 and the X-ray receiving device varies depending on the patient or the examination site, the size of the positioning map needs to be adjusted based on this distance. Specifically, the medical X-ray equipment also includes a detection system for detecting a first distance between the handpiece 20 and the horizontally positioned X-ray receiving device (also known as the bed board), and / or a second distance between the handpiece 20 and the vertically positioned X-ray receiving device (also known as the flat cassette). The detection system may include one or more position sensors for detecting the first and / or second distances. For example, the detection system may include a first position sensor for detecting the first distance. The first position sensor can be disposed on the machine head 20. Since the first position sensor is linked to the machine head 20, it can detect a first distance when the machine head 20 is facing the bed board, and a second distance when the machine head 20 is facing the flat cassette. Of course, in some embodiments, the detection system may also include a second position sensor for detecting the second distance. The position sensor can be a distance sensor, such as a laser distance sensor or an encoder.

[0109] The processor 10 controls the size of the positioning diagram projected by the projection device 50 onto the bed board based on the first distance. Specifically, when the headrest 20 is facing the bed board, the processor 10 controls the projection device 50 to project the positioning diagram onto the bed board based on the first distance. The size of the projected positioning diagram is the size pre-associated with the first distance. The memory may store multiple distances and their associated sizes. The processor 10 may retrieve the associated size from the memory 140 based on the first distance, thereby controlling the projection device 50 so that the size of the projected positioning diagram is the size associated with the first distance.

[0110] Similarly, the processor 10 controls the size of the positioning diagram projected by the projection device 50 onto the flat cassette based on the second distance. Specifically, when the handpiece 20 is facing the vertically disposed X-ray receiving device, the processor 10 controls the projection device 50 based on the second distance to project the positioning diagram onto the X-ray receiving device. The size of the projected positioning diagram is the size pre-associated with the second distance. The processor 10 retrieves the size associated with the second distance from the memory and controls the projection device 50 so that the size of the projected positioning diagram is the size associated with the second distance.

[0111] Similarly, when a patient lies on a bed or stands in front of a flat board, the positioning marker is projected onto the patient's body surface. Due to the thickness of the human body, the positioning marker on the patient's body surface may be slightly smaller than that seen on the bed and flat board. Therefore, the processor 10 may correct this. Specifically, the medical X-ray device may include a detection device for detecting body thickness. The detection device may be a camera or other device capable of detecting body thickness.

[0112] The processor 10 uses the body thickness detected by the detection device to correct the first distance, for example, by subtracting the body thickness from the first distance to obtain a corrected first distance. The processor 10 then controls the projection device 50 to project a positioning diagram onto the bed board based on the corrected first distance. The size of the projected positioning diagram is the size pre-associated with the corrected first distance.

[0113] The processor 10 may also use the human body thickness detected by the detection device to correct the second distance, such as by subtracting the human body thickness from the second distance to obtain a corrected second distance. The processor 10 may control the projection device 50 to project a positioning identification pattern on the flat film cassette based on the corrected second distance, with the size of the projected positioning identification pattern being the size pre-associated with the corrected second distance.

[0114] As can be seen, medical X-ray equipment can use light for positioning guidance and ionization chamber identification. The projection device 50 is mounted on the head of the device or elsewhere. Distance measuring sensors in various dimensions detect the relative position of the projection device 50 and the X-ray receiving device. Based on the examination position and the relative position of the projection device 50 and the X-ray receiving device, the processor generates an image (body position diagram and ionization chamber identification diagram) for positioning guidance and ionization chamber identification. The projection device 50 then scans and projects the image for display. This provides visual guidance for patient positioning and the physician's assessment of imaging conditions during X-ray imaging, improving operator convenience and ease of use.

[0115] Step 3': Determine the ionization chamber field selected by the user. The positioning information of the ionization chamber identification diagram represents the selected or determined ionization chamber field. Not all ionization chamber fields may be required for a single test, so it is usually necessary to select an ionization chamber field. After selection, the ionization chamber field can be further adjusted (selected). The method for obtaining user instructions varies depending on the feedback device 60, as described in detail below.

[0116] In one embodiment, the processor 10 detects the user's body movements through the feedback device 60. The body movements may include gestures. Figure 2As shown, the feedback device 60 may include or use a 3D camera 610. The processor 10 collects depth information of objects in the field of view through the 3D camera 610. For example, the transmitting module of the 3D camera 610 emits light, and the receiving module of the 3D camera 610 receives the light. The depth information of the object can be obtained according to the time difference between the emission and reception of the light. When the depth information has finger features, the finger features are marked as marking points, and the user's gesture operation is obtained according to the position change of each marking point. When the depth information has finger features, the processor 10 can also project a preset mark onto the hand where the finger feature is located through the 3D camera 610 to indicate that the finger feature is detected. After the user sees the preset mark on the hand, he can perform gesture operations, which is very convenient.

[0117] like Figure 8 As shown, the feedback device 60 may also include multiple UWB (ultra-wideband) base stations 620 and UWB tags 630. The UWB tags 630 are used to be worn on the user's hand. The UWB tags 630 may be gloves, marking objects, etc., and may move on the surface of the object illuminated by light. The multiple UWB base stations 620 are used to locate the UWB tags 630. The processor 10 detects the position change (such as spatial position change) of the UWB tags 630 worn on the user's hand through the multiple UWB base stations 620, and obtains the user's gesture operation based on the position change of the UWB tags 630.

[0118] Of course, the feedback device 60 can also detect the user's body movements in other ways, which will not be explained here.

[0119] When the detected limb movement includes an instruction for selecting an ionization chamber field, the processor 10 determines the selected ionization chamber field in response to the instruction, so that the selected ionization chamber field and the examination site are in a preset positional relationship. Specifically, when the feedback device 60 detects that the user's limb movement includes a finger tapping operation or a long press operation on the ionization chamber identification diagram A, the processor 10 determines that the instruction for selecting the ionization chamber field has been received, that is, the ionization chamber field selected by the tapping operation or the long press operation is the ionization chamber field selected by the user. The limb movement is performed on the ionization chamber identification diagram A, and the ionization chamber field corresponding to the ionization chamber field sub-identifier a is selected by tapping or long pressing the finger. The processor 10 determines the selected ionization chamber field in response to the instruction, so that the selected ionization chamber field and the examination site are in a preset positional relationship. The selected ionization chamber field and the examination site are in a preset positional relationship. For example, the center of the selected ionization chamber field sub-marker a in the ionization chamber identification diagram A coincides (is aligned) with the center of the examination site. The processor 10 controls the projection device 50 to project the body map with the center of the selected ionization chamber field sub-marker a as the center of the body map. This ensures that the patient's examination site and the center position of the selected ionization chamber field are aligned during the actual examination. The processor 10 also uses the projection device 50 to present the selected ionization chamber field in a differentiated manner on the ionization chamber identification diagram A, that is, to present the selected ionization chamber field sub-marker a in a differentiated manner, for example, by changing the color and / or brightness of the selected ionization chamber field sub-marker a to distinguish it from other ionization chamber field sub-markers a. Figure 2 The darker color is the selected ionization chamber field marker a.

[0120] In some embodiments, if the processor 10 detects on the feedback device 60 that the user's body movement includes a finger tapping operation on the ionization chamber logo A, the processor 10 determines that an instruction for selecting the tapped ionization chamber field has been received. In response to the instruction, the processor 10 selects the ionization chamber field selected by the tapping as the candidate. If the processor 10 detects on the feedback device 60 that the user's body movement includes a finger long-pressing operation on the ionization chamber logo A, the processor 10 determines that an instruction for selecting an ionization chamber field has been received. In response to the instruction, the processor 10 enables the selected ionization chamber field.

[0121] In another embodiment, the processor 10 detects user speech via the feedback device 60. The feedback device 60 can be a voice recognition device. After viewing the ionization chamber logo, the user can activate the voice recognition device using a specific voice command, thereby issuing voice control instructions based on the desired positioning requirements. If the voice detected by the feedback device 60 includes an instruction for selecting an ionization chamber field, the selected ionization chamber field is determined in response to the instruction, so that the selected ionization chamber field and the examination site are in a predetermined positional relationship.

[0122] It can be seen that the operator does not need to operate on the host computer outside the shielded room, but can very conveniently select the ionization chamber field next to the patient, which improves work efficiency and reduces the patient's waiting time.

[0123] In another embodiment, the processor 10 captures a real-time image containing the ionization chamber field (or, alternatively, the ionization chamber identification image) via the feedback device 60 and displays it on a display. For example, the feedback device 60 includes a camera that captures and displays a video image of the area near the X-ray receiving device. The operator can see the ionization chamber identification image through the video image and thus operate the receiving device of the human-computer interaction device to select the ionization chamber field. Specifically, the processor 10 receives, via the receiving device, a user's instruction for selecting the ionization chamber field based on the real-time image displayed on the display, and determines the selected ionization chamber field in response to the instruction, so that the selected ionization chamber field and the examination site are in a predetermined positional relationship.

[0124] This step may also include: when the limb movement detected by the feedback device 60 includes an instruction for adjusting the body position map, the processor 10 adjusts the projected body position map in response to the instruction so that the body position map and the examination part are in a predetermined positional relationship. In other words, the patient is positioned according to the adjusted body position map so that the examination part and the body position map overlap and are substantially located in the middle of the body position map. The body position map has a positioning marking line for marking the placement position of the examination part, and adjusting the body position map may be adjusting the positioning marking line.

[0125] Specifically, the manner in which the feedback device 60 detects limb movements is described above and will not be further described here. When the feedback device 60 detects a limb movement of the user, including a finger rotation operation, the processor 10 determines that an instruction for rotating the body image has been received and, in response to the instruction, rotates the projected body image.

[0126] When the feedback device 60 detects a user's body movement including a sliding operation of a finger, the processor 10 determines that an instruction for moving the body map has been received, and moves the projected body map in response to the instruction.

[0127] When the feedback device 60 detects a user's body movement including a finger dragging operation, the processor 10 determines that an instruction for moving the body map has been received, and moves the projected body map in response to the instruction.

[0128] Through these convenient and quick gesture operations, the position of the body position diagram can be adjusted well, and the patient's position can be prompted more accurately.

[0129] If the feedback device 60 detects a voice command, step 3' may further include: when the voice detected by the feedback device 60 includes an instruction for adjusting the body image, the processor 10 adjusts the projected body image in response to the instruction for adjusting the body image, so that the body image and the examination part are in a predetermined positional relationship. The instruction for adjusting the body image may be an instruction for rotating the body image or an instruction for moving the body image. In response to these instructions, the processor 10 rotates or moves the projected body image.

[0130] If the feedback device 60 has a camera function, step 3' may further include: the processor 10 captures a real-time image containing the body map via the feedback device 60 and displays it on a display. For example, the feedback device 60 includes a camera, which captures and displays a video image of the area near the X-ray receiving device. The operator can see the body map through the video image, and in fact, the ionization chamber marker map, X-ray field marker map, etc., and can thus operate the receiving device of the human-computer interaction device to adjust the body map. In other words, the processor 10 receives, via the receiving device, a user's instruction for adjusting the body map based on the real-time image displayed on the display, and adjusts the projected body map in response to the instruction so that the body map and the examination area are in a predetermined positional relationship. The instruction for adjusting the body map may be an instruction for rotating the body map or an instruction for moving the body map, etc. In response to these instructions, the processor 10 rotates or moves the projected body map.

[0131] This step may also include: when the limb movement detected by the feedback device 60 includes an instruction for adjusting the size and / or position of the current X-ray field, the processor 10 responds to the instruction for adjusting the size and / or position of the current X-ray field, updates (adjusts) the size and / or position of the current X-ray field, that is, adjusts the X-ray irradiation range and / or irradiation position, and updates the projected X-ray field identification map. Similar to selecting the ionization chamber field, the operator can conveniently set the medical X-ray equipment directly through the feedback device 60 after viewing the ionization chamber identification map and X-ray field identification map in the shielded room, without having to use a host computer.

[0132] Specifically, the manner in which the feedback device 60 detects body movements is described above and is not further described here. When the feedback device 60 detects that the user's body movement includes a pinching operation using multiple fingers (two or more fingers), the processor 10 determines that an instruction to adjust the size of the current X-ray field has been received. In response to the instruction to adjust the size of the current X-ray field, the processor 10 pinches the size of the current X-ray field and correspondingly pinches the projected X-ray field marker.

[0133] If the feedback device 60 detects a voice instruction, step 3' may also include: when the voice detected by the feedback device 60 contains an instruction for adjusting the size and / or position of the current X-ray field, the processor 10 updates the size and / or position of the current X-ray field in response to the instruction for adjusting the size and / or position of the current X-ray field, and updates the projected X-ray field identification map. The instruction for adjusting the size of the current X-ray field may include an instruction for enlarging the size of the current X-ray field, and may also include an instruction for reducing the size of the current X-ray field. The instruction for adjusting the position of the current X-ray field may include an instruction for moving the position of the current X-ray field.

[0134] If the feedback device 60 has a shooting function, step 3' may also include: the processor 10 shoots a real-time image containing the X-ray field identification map through the feedback device 60 and displays it on the display, receives through the receiving device an instruction for adjusting the size and / or position of the current X-ray field input by the user based on the real-time image displayed on the display, responds to the instruction for adjusting the size and / or position of the current X-ray field, updates the size and / or position of the current X-ray field, and updates the projected X-ray field identification map.

[0135] In step 41', the processor 10 receives a user-initiated shooting instruction, such as through the exposure hand switch or the human-computer interface device 70. In response to the shooting instruction, the processor 10 controls the X-ray generator 20 to generate and emit X-rays. Specifically, the processor 10 controls the X-ray generator 20 according to the current size and position of the X-ray field, so that the radiation range and position of the emitted X-rays correspond to the size and position of the X-ray field. In other words, after the patient is positioned and the ionization chamber field is selected, X-ray filming can begin.

[0136] In step 42', the processor 10 receives X-rays through the X-ray receiving device 40 to form an X-ray image of the examination site; and also detects the accumulated value of the residual dose after the X-rays pass through the human body (such as the examination site) through the selected ionization chamber field.

[0137] Step 43 ′: the processor 10 determines whether the accumulated value of the remaining dose is greater than or equal to a preset threshold.

[0138] In step 44', the processor 10 controls the X-ray generator to stop emitting X-rays when the accumulated value of the remaining dose is greater than or equal to a preset threshold. This shows that the present invention not only prompts the operator through various positioning diagrams but also uses a feedback device to receive instructions from the operator regarding the medical X-ray device or the positioning diagram after viewing the positioning diagram, resulting in highly efficient human-computer interaction.

[0139] It can be seen that the medical X-ray equipment of the present invention integrates a projection device, which can project the light field area, ionization chamber field position, positioning auxiliary graphics (body position map), etc., and also integrates a feedback device, such as camera vision, or spatial positioning, or intelligent voice recognition and other devices, which are used to receive the operator's instructions, and then change the light field area size, switch the ionization chamber field, change the auxiliary positioning graphics, etc., thereby improving the operator's work efficiency and the use efficiency of the medical X-ray equipment.

[0140] And in Figure 9 In the illustrated embodiment, the imaging method of a medical X-ray device includes the following steps:

[0141] Step 1', receiving the patient's examination part. For example, the processor 10 receives the patient's examination part through the human-computer interaction device 70. This step is the same as the aforementioned step 1' and will not be repeated here.

[0142] Step 2', projecting a body position map associated with the examination part. For example, the processor 10 projects the body position map associated with the examination part through the projection device 50. Specifically, the projection device 50 projects the body position map associated with the examination part toward the X-ray receiving device. The body position map is used to indicate that the examination part is placed in a preset manner. In this step, the processor 10 uses the size of the X-ray field pre-associated with the examination part as the size of the current X-ray field, and projects an X-ray field identification map for identifying the size and position of the current X-ray field toward the X-ray receiving device through the projection device 50. The specific process of this step is the same as that of the above step 2' and is not repeated here.

[0143] Step 3″: Adjust the projected body position map. The adjustment of the body position map is based on the user's instructions. There are many ways to receive user instructions, which are described in detail below.

[0144] In one embodiment, the processor 10 detects the user's body movements or voice through the feedback device 60. When the detected body movements or voice contain instructions for adjusting the body position map, the processor 10 adjusts the body position map projected by the projection device in response to the instructions so that the body position map and the examination part are in a preset positional relationship.

[0145] Similarly, the processor 10 can also detect the user's body movements or voice through the feedback device 60. When the detected body movements or voice contain instructions for adjusting the size and / or position of the current X-ray field, the processor 10 updates the size and / or position of the current X-ray field and updates the projected X-ray field identification map in response to the instructions for adjusting the size and / or position of the current X-ray field.

[0146] Body movements can include hand gestures. The feedback device 60 detects the user's body movements and can use a 3D camera to collect depth information of objects within the field of view. When the depth information contains finger features, the finger features are marked as markers, and the user's gesture operation is obtained based on the position changes of each marker point. Preset markers can also be projected onto the hand where the finger features are located to indicate that the finger features have been detected. The feedback device 60 can also detect the position changes of UWB tags worn on the user's hands through multiple UWB base stations and obtain the user's gesture operation based on the position changes of the UWB tags.

[0147] If the feedback device 60 detects that the user's body movement includes a zooming operation using multiple fingers, the processor 10 determines that an instruction for adjusting the size of the current X-ray field has been received. If the feedback device 60 detects that the user's body movement includes a rotating operation using a finger, the processor 10 determines that an instruction for rotating the body image has been received. If the feedback device 60 detects that the user's body movement includes a sliding operation using a finger, the processor 10 determines that an instruction for moving the body image has been received. If the feedback device 60 detects that the user's body movement includes a dragging operation using a finger, the processor 10 determines that an instruction for moving the body image has been received.

[0148] In another embodiment, the feedback device 60 captures a real-time image containing a body position map and displays it on a display. The processor 10 receives an instruction for adjusting the body position map input by the user based on the real-time image displayed on the display through a receiving device, and adjusts the body position map projected by the projection device 50 in response to the instruction.

[0149] The real-time image captured by the feedback device 60 also includes an X-ray field identification map. The processor 10 receives, via the receiving device, a user's input command for adjusting the size and / or position of the current X-ray field based on the real-time image displayed on the display. In response to the command for adjusting the size and / or position of the current X-ray field, the processor 10 updates the size and / or position of the current X-ray field and updates the projected X-ray field identification map.

[0150] The specific content of this step is shown in the aforementioned step 3' and will not be described in detail here.

[0151] In step 4', the processor 10 receives a shooting instruction from the user, such as through the exposure hand switch or the human-computer interaction device 70. In response to the shooting instruction, the processor 10 controls the X-ray generating device to generate and emit X-rays; and receives the X-rays through the X-ray receiving device to form an X-ray image of the examination part. The specific process can be the same as the aforementioned step 4, or the aforementioned steps 41'-44', and will not be repeated here.

[0152] This document is described with reference to various exemplary embodiments. However, those skilled in the art will recognize that changes and modifications may be made to the exemplary embodiments without departing from the scope of this document. For example, the various operational steps and components used to perform the operational steps may be implemented in different ways (e.g., one or more steps may be deleted, modified, or incorporated into other steps) depending on the specific application or considering any number of cost functions associated with the operation of the system.

[0153] Additionally, as will be appreciated by those skilled in the art, the principles of this disclosure may be embodied in a computer program product on a computer-readable storage medium pre-loaded with computer-readable program code. Any tangible, non-transitory computer-readable storage medium may be used, including magnetic storage devices (hard disks, floppy disks, etc.), optical storage devices (CD-ROMs, DVDs, Blu-ray discs, etc.), flash memory, and / or the like. These computer program instructions may be loaded onto a general-purpose computer, a special-purpose computer, or other programmable data processing device to form a machine, such that the instructions executed on the computer or other programmable data processing device can generate a device that implements a specified function. These computer program instructions may also be stored in a computer-readable memory, which can instruct the computer or other programmable data processing device to operate in a specific manner, such that the instructions stored in the computer-readable memory can form an article of manufacture that includes an implementation device that implements the specified function. The computer program instructions may also be loaded onto a computer or other programmable data processing device, causing the computer or other programmable device to execute a series of operational steps to produce a computer-implemented process, such that the instructions executed on the computer or other programmable device provide the steps for implementing the specified function.

[0154] Although the principles of this invention have been shown in various embodiments, many modifications of structure, arrangement, proportion, elements, materials and components that are particularly suitable for specific environments and operational requirements can be used without departing from the principles and scope of this invention. The above modifications and other changes or amendments are intended to be included within the scope of this invention.

[0155] The foregoing detailed description has been described with reference to various embodiments. However, those skilled in the art will recognize that various modifications and changes can be made without departing from the scope of this disclosure. Therefore, the present disclosure will be considered in an illustrative rather than a restrictive sense, and all such modifications will be included within its scope. Similarly, the advantages, other advantages and solutions to the problems of the various embodiments have been described above. However, the benefits, advantages, solutions to the problems and any elements that can produce these, or make them more specific, should not be interpreted as critical, required or necessary. The term "comprising" and any other variants used in this article are all non-exclusive inclusions, so that a process, method, article or device that includes a list of elements includes not only these elements, but also other elements that are not explicitly listed or do not belong to the process, method, system, article or device. In addition, the term "coupled" and any other variants used in this article refer to physical connections, electrical connections, magnetic connections, optical connections, communication connections, functional connections and / or any other connections.

Claims

1. An imaging method for medical X-ray equipment, characterized in that: include: The examination site where the patient is received; Projecting an ionization chamber identification diagram; the ionization chamber identification diagram is used to reflect multiple ionization chamber fields in the ionization chamber and position information of each ionization chamber field; detecting a user's body movements or voice, and when the detected body movements or voice contain an instruction for selecting an ionization chamber field, determining the selected ionization chamber field in response to the instruction so that the selected ionization chamber field and the examination part are in a preset positional relationship; or capturing a real-time image containing the ionization chamber field and displaying it on a display, receiving an instruction for selecting an ionization chamber field input by the user based on the real-time image displayed on the display, and determining the selected ionization chamber field in response to the instruction; Receive a shooting instruction issued by a user, and in response to the shooting instruction, control the X-ray generating device to generate and emit X-rays; receive the X-rays through the X-ray receiving device to form an X-ray image of the inspection part; and also detect the cumulative value of the residual dose of the X-ray after passing through the human body through the selected ionization chamber field; when the cumulative value of the residual dose is greater than or equal to a preset threshold, control the X-ray generating device to stop emitting X-rays.

2. The method according to claim 1, wherein The projecting of the ionization chamber logo image includes: The ionization chamber logo is projected toward the X-ray receiving device.

3. The method according to claim 1, wherein Before receiving the shooting instruction from the user, it also includes: Projecting a body position diagram associated with the examination part; the body position diagram is used to indicate the placement of the examination part in a preset manner; Detecting the user's body movements or voice, and when the detected body movements or voice contain instructions for adjusting the body position map, adjusting the projected body position map in response to the instructions for adjusting the body position map so that the body position map and the examination part are in a preset positional relationship; or capturing a real-time image containing the body position map and displaying it on a display, receiving instructions for adjusting the body position map input by the user based on the real-time image displayed on the display, and adjusting the projected body position map in response to the instructions for adjusting the body position map.

4. The method according to claim 1 or 3, wherein: Before receiving the shooting instruction from the user, it also includes: Using the size of the X-ray field pre-associated with the examination part as the size of the current X-ray field, and projecting an X-ray field identification diagram for identifying the size and position of the current X-ray field toward the X-ray receiving device; Detecting the user's body movements or voice, and when the detected body movements or voice contain instructions for adjusting the size and / or position of the current X-ray field, in response to the instructions for adjusting the size and / or position of the current X-ray field, updating the size and / or position of the current X-ray field, and updating the projected X-ray field identification map; or, capturing a real-time image containing the X-ray field identification map and displaying it on a display, receiving instructions for adjusting the size and / or position of the current X-ray field input by the user based on the real-time image displayed on the display, updating the size and / or position of the current X-ray field in response to the instructions for adjusting the size and / or position of the current X-ray field, and updating the projected X-ray field identification map.

5. The method according to claim 1, wherein The ionization chamber identification diagram includes a plurality of ionization chamber field sub-identifiers, where one ionization chamber field sub-identifier is used to identify one ionization chamber field; the arrangement of the ionization chamber field sub-identifiers in the ionization chamber identification diagram is the same as the arrangement of the ionization chamber fields of the ionization chamber, and the spacing between the ionization chamber field sub-identifiers is the same as the spacing between the ionization chamber fields of the ionization chamber; the method further includes: The selected ionization chamber field sub-identities are presented in a differentiated manner on the ionization chamber identification diagram.

6. The method according to claim 1, wherein The body movement includes a gesture operation; and detecting the user's body movement includes: The 3D camera collects the depth information of the object in the field of view. When the depth information has finger features, the finger features are marked as markers, and the user's gesture operation is obtained according to the position change of each marker point; or The position change of the UWB tag worn by the user is detected by multiple UWB base stations, and the user's gesture operation is obtained according to the position change of the UWB tag.

7. The method according to claim 6, wherein When the depth information has finger features, it also includes: A preset marker is projected onto the hand where the finger feature is located to indicate that the finger feature is detected.

8. The method according to claim 4, wherein The detecting of the user's body movements includes: detecting that the user's body movement includes a zooming operation using multiple fingers, then determining that an instruction for adjusting the size of the current X-ray field has been received; and / or, detecting that the user's body movement includes a tapping operation or a long-pressing operation of a finger on the ionization chamber logo, determining that an instruction for selecting an ionization chamber field has been received; and / or, detecting that the user's body movement includes a finger rotation operation, determining that an instruction for rotating the body position map has been received; and / or, detecting that the user's body movement includes a sliding operation of a finger, determining that an instruction for moving the body position map has been received; and / or, If it is detected that the user's body movement includes a dragging operation of a finger, it is determined that an instruction for moving the body position map has been received.

9. An imaging method for medical X-ray equipment, characterized in that: include: The examination site where the patient is received; Projecting a body position diagram associated with the examination part; the body position diagram is used to indicate the placement of the examination part in a preset manner; detecting a user's body movements or voice, and when the detected body movements or voice contain an instruction for adjusting the body position map, adjusting the projected body position map in response to the instruction so that the body position map and the examination part are in a preset positional relationship; or capturing a real-time image containing the body position map and displaying it on a display, receiving an instruction for adjusting the body position map input by the user based on the real-time image displayed on the display, and adjusting the projected body position map in response to the instruction; Receive a shooting instruction issued by the user, and in response to the shooting instruction, control the X-ray generating device to generate and emit X-rays; receive the X-rays through the X-ray receiving device to form an X-ray image of the inspection part.

10. The method according to claim 9, wherein The body position map has a positioning marking line for marking the placement position of the examination part; the body position map associated with the examination part is projected, including: A body position map associated with the examination part is projected toward the X-ray receiving device.

11. The method according to claim 9, wherein Before receiving the shooting instruction from the user, it also includes: Using the size of the X-ray field pre-associated with the examination part as the size of the current X-ray field, and projecting an X-ray field identification diagram for identifying the size and position of the current X-ray field toward the X-ray receiving device; Detecting the user's body movements or voice, and when the detected body movements or voice contain instructions for adjusting the size and / or position of the current X-ray field, in response to the instructions for adjusting the size and / or position of the current X-ray field, updating the size and / or position of the current X-ray field, and updating the projected X-ray field identification map; or, capturing a real-time image containing the X-ray field identification map and displaying it on a display, receiving instructions for adjusting the size and / or position of the current X-ray field input by the user based on the real-time image displayed on the display, updating the size and / or position of the current X-ray field in response to the instructions for adjusting the size and / or position of the current X-ray field, and updating the projected X-ray field identification map.

12. The method according to claim 9 or 11, wherein: The body movement includes a gesture operation; and detecting the user's body movement includes: The 3D camera collects the depth information of the object in the field of view. When the depth information has finger features, the finger features are marked as markers, and the user's gesture operation is obtained according to the position change of each marker point; or The position change of the UWB tag worn by the user is detected by multiple UWB base stations, and the user's gesture operation is obtained according to the position change of the UWB tag.

13. The method according to claim 12, wherein: When the depth information has finger features, it also includes: A preset marker is projected onto the hand where the finger feature is located to indicate that the finger feature is detected.

14. The method according to claim 11, wherein The detecting of the user's body movements includes: detecting that the user's body movement includes a zooming operation using multiple fingers, then determining that an instruction for adjusting the size of the current X-ray field has been received; and / or, detecting that the user's body movement includes a finger rotation operation, determining that an instruction for rotating the body position map has been received; and / or, detecting that the user's body movement includes a sliding operation of a finger, determining that an instruction for moving the body position map has been received; and / or, If it is detected that the user's body movement includes a dragging operation of a finger, it is determined that an instruction for moving the body position map has been received.

15. An imaging method for medical X-ray equipment, characterized in that: include: The examination site where the patient is received; Projecting a positioning identification map; the positioning identification map is used to reflect positioning information related to the examination part; detecting a user's body movements or voice, and when the detected body movements or voice contain an instruction for adjusting the positioning map, adjusting the positioning map and its corresponding positioning information in response to the instruction; or capturing a real-time image containing the positioning map and displaying it on a display, receiving an instruction for adjusting the positioning map input by the user based on the real-time image displayed on the display, and adjusting the positioning map and its corresponding positioning information in response to the instruction; Receive a shooting instruction issued by the user, and in response to the shooting instruction, control the X-ray generating device to generate and emit X-rays; receive the X-rays through the X-ray receiving device to form an X-ray image of the inspection part.

16. The method according to claim 11, wherein The positioning identification diagram includes at least one of an ionization chamber identification diagram, a body position diagram, and an X-ray field identification diagram; the ionization chamber identification diagram is used to reflect multiple ionization chamber fields in the ionization chamber and the position information of each ionization chamber field; the body position diagram is used to indicate that the examination part is placed in a preset manner; and the X-ray field identification diagram is used to identify the size and position of the current X-ray field.

17. A medical X-ray device, characterized in that: include: An X-ray generating device, used for generating and emitting X-rays; an X-ray receiving device for receiving the X-rays to form an X-ray image of the examination site; a projection device for projecting an image; Memory, used to store programs; A processor, configured to execute the program stored in the memory to implement the method according to any one of claims 1 to 16.

18. A computer-readable storage medium, characterized in that The medium stores a program, which can be executed by a processor to implement the method according to any one of claims 1 to 16.

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