Positioning device of image scanning equipment and image scanning system

Abstract

The utility model relates to a positioning device of image scanning equipment and an image scanning system. The positioning device of the image scanning equipment comprises an identification module used for being installed on the inlet side of a scanning cavity of the image scanning equipment, the identification module comprises a first identification piece used for forming a first identification line on the inlet side and a second identification piece used for forming a second identification line on the inlet side, and the two identification pieces are symmetrical about the center of the scanning cavity; the intersection point of the first identification line and the second identification line is located on the central axis of the scanning cavity; the sickbed is configured to operably move until the intersection point coincides with the central identification point of the to-be-operated area of the patient. The positioning device of the image scanning equipment can simplify the positioning process and reduce the requirements on medical staff.

Description

Technical Field

[0001] The present application relates to the field of medical device technology, and in particular to a positioning device and an image scanning system for an image scanning device. Background Art

[0002] Computed tomography (CT) is a common medical examination device that can assist doctors in diagnosing diseases. When CT is used in surgery, doctors can understand the surgical status at any time through CT images. This type of CT used in surgery is also called mobile CT or slide CT, and its position can be moved to match the position of the bed.

[0003] During surgery, in order to facilitate the doctor's operation, the position of the bed is usually adjusted, for example, the bed is moved in three directions: length, width and height. This results in the previous positioning of the bed and the CT device becoming invalid after the bed is adjusted. At this time, if a CT scan is to be performed, it needs to be repositioned. Medical staff need to observe the relative position of the bed and the scanning cavity of the CT device with the naked eye while carefully sliding the CT device along its slide rail to get closer to the bed. The entire operation requires a high level of attentiveness from medical staff, and the positioning process is relatively cumbersome and complicated. Utility Model Content

[0004] Based on this, it is necessary to provide a positioning device and an image scanning system involving an image scanning device to simplify the positioning process of the image scanning device and the hospital bed and reduce the requirements for medical staff.

[0005] A positioning device for an image scanning device, the positioning device for the image scanning device comprising:

[0006] An identification module, used for installation at the entrance side of a scanning cavity of an image scanning device, the identification module comprising a first identification member for forming a first identification line at the entrance side, and a second identification member for forming a second identification line at the entrance side, the first identification member and the second identification member are symmetrically arranged about the center of the scanning cavity, and the intersection of the first identification line and the second identification line is located on the central axis of the scanning cavity;

[0007] The bed is configured to be operably moved until the intersection point coincides with the center mark point of the patient's surgical area.

[0008] In some embodiments, the positioning device of the image scanning equipment also includes a camera module for obtaining a cross-sectional image of a preset position on the hospital bed, the center identification point is located on the cross-sectional image, the first identification line can form a first identification point on the cross-sectional image, and the second identification line can form a second identification point on the cross-sectional image, and the hospital bed is configured to be operably moved until the first identification point and the second identification point both coincide with the center identification point displayed on the cross-sectional image.

[0009] In some embodiments, the first identification member and the second identification member are both laser generators; the first identification line is a first light beam, and the second identification line is a second light beam; the first identification point is a first light spot, and the second identification point is a second light spot.

[0010] In some embodiments, the positioning device of the image scanning equipment further includes a pre-positioning tool, and the pre-positioning tool is used to determine whether the outer contour dimensions of the hospital bed and the patient carried thereon are smaller than the diameter of the scanning cavity.

[0011] In some embodiments, the pre-positioning tool is semi-annular or annular, and the inner diameter of the pre-positioning tool is equal to the diameter of the scanning cavity.

[0012] An image scanning system comprises the positioning device of the above-mentioned image scanning equipment and the image scanning equipment, wherein the identification module and the camera module are both installed on the end surface of the image scanning equipment close to the hospital bed.

[0013] In some embodiments, the heights of both the first identification member and the second identification member are the same as the height of the central axis.

[0014] In some embodiments, the process of the image scanning device and the hospital bed being relatively close to each other includes a first state, a critical state, and a second state performed sequentially;

[0015] In the first state and the second state, the first identification point and the second identification point are scattered on the cross-sectional image; in the critical state, the first identification point and the second identification point overlap on the cross-sectional image; the relative approach speed of the image scanning device and the hospital bed in the second state is less than the relative approach speed in the first state.

[0016] In some embodiments, in the first state and / or the critical state, the hospital bed is configured to be operably moved to reduce the relative position deviation between the image scanning device and the hospital bed.

[0017] In some embodiments, in the critical state, the image scanning device and the hospital bed stop being relatively close, and the hospital bed is configured to be operably moved to reduce the relative position deviation between the image scanning device and the hospital bed.

[0018] In some embodiments, the image scanning system includes a slide rail extending along the longitudinal direction of the scanning cavity, and the image scanning device is slidably mounted on the slide rail. The image scanning device can slide along the slide rail to approach the bed.

[0019] In the positioning device and image scanning system of the above-mentioned image scanning equipment, the identification module is installed on the entrance side of the scanning chamber of the image scanning equipment, that is, the side close to the hospital bed. The first identification member can form a first identification line on the entrance side, and the second identification member can form a second identification line on the entrance side, that is, both can form identification lines toward the hospital bed. The first identification member and the second identification member are symmetrically arranged about the center of the scanning chamber, and the intersection of the first identification line and the second identification line is located on the central axis of the scanning chamber. Usually, when the center identification point of the patient's surgical area is located on the central axis of the scanning chamber, the hospital bed and the patient it carries can smoothly enter the scanning chamber to complete the scan, that is, the sign of the completion of positioning is that the center identification point of the patient's surgical area is located on the central axis of the scanning chamber. Therefore, when the hospital bed and the image scanning device are relatively close, the position of the hospital bed can be moved by observing the relative position of the intersection of the two marking lines and the center marking point of the patient's surgical area. For example, if the intersection of the two marking lines is above the center marking point of the patient's surgical area, it means that the position of the hospital bed is too low and the bed needs to be moved up; if the intersection of the two marking lines is to the left of the center marking point of the patient's surgical area, it means that the position of the hospital bed is too right and the bed needs to be moved to the left until the above-mentioned positioning requirements are met. When positioning is performed through the above-mentioned positioning system, medical staff only need to observe the relative position of the intersection of the two marking lines and the center marking point of the patient's surgical area to determine the current relative position of the hospital bed and the image scanning device, and make corresponding adjustments until the positioning is completed. In this process, medical staff do not need to repeatedly observe the relative position of the hospital bed and the image scanning device with their naked eyes, which can simplify the positioning process of the image scanning device and the hospital bed and reduce the requirements for medical staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] FIG. 1 is a schematic diagram of an image scanning system according to an embodiment of the present application.

[0021] FIG. 2 is a schematic diagram of an identification module and a camera module installed in a computer tomography scanner in one embodiment of the present application.

[0022] FIG. 3 is a schematic diagram of the installation of the identification module in an embodiment of the present application.

[0023] FIG. 4 is a schematic diagram of a first identification line and a second identification line in an embodiment of the present application.

[0024] FIG. 5 is a schematic diagram of a pre-positioning tool, a hospital bed, and a patient in one embodiment of the present application.

[0025] FIG6 is a schematic diagram of two marking points on a cross-sectional image when the patient bed is positioned upward in an embodiment of the present application.

[0026] FIG. 7 is a schematic diagram of two marking points on a cross-sectional image when the patient bed is in a lower position in an embodiment of the present application.

[0027] FIG8 is a schematic diagram of two marking points on a cross-sectional image when the patient bed is positioned to the right in an embodiment of the present application.

[0028] FIG. 9 is a schematic diagram of two marking points on a cross-sectional image when the bed is positioned to the left in an embodiment of the present application.

[0029] FIG. 10 is a schematic diagram of two marking points on a cross-sectional image when positioning is completed in one embodiment of the present application.

[0030] Reference numerals:

[0031] 111. First identification member; 112. Second identification member; 121. First identification line; 122. Second identification line; 131. First identification point; 132. Second identification point; 140. Intersection point; 150. Clamp; 200. Camera module; 300. Pre-positioning tool; 400. Image scanning device; 410. Scanning cavity; 500. Hospital bed; 600. Patient; 610. Area to be operated on; 700. Slide rail. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0033] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0034] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0035] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0036] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0037] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0038] Referring to FIGS. 1 to 4 , a positioning device for an image scanning device provided in an embodiment of the present application includes an identification module, which is used to be installed at the entrance side of a scanning cavity 410 of an image scanning device 400, and the identification module includes a first identification member 111 for forming a first identification line 121 at the entrance side, and a second identification member 112 for forming a second identification line 122 at the entrance side. The first identification member 111 and the second identification member 112 are symmetrically arranged about the center of the scanning cavity 410, and the intersection 140 of the first identification line 121 and the second identification line 122 is located on the central axis of the scanning cavity 410. The bed 500 is configured to be operably moved until the intersection 140 of the first identification line 121 and the second identification line 122 coincides with the central identification point of the surgical area 610 of the patient 600.

[0039] Specifically, the center mark point of the area to be operated 610 can be manually set, for example, by using a medical marker pen or gentian violet to mark the center mark point of the area to be operated 610. For example, if the area to be operated 610 of the patient 600 is the head, then the center mark point can be marked at the position of the head of the patient 600.

[0040] The positioning device of the above-mentioned image scanning device, the identification module is installed on the entrance side of the scanning cavity 410 of the image scanning device 400, that is, the side close to the hospital bed 500. The first identification member 111 can form a first identification line 121 on the entrance side, and the second identification member 112 can form a second identification line 122 on the entrance side, that is, both can form identification lines toward the hospital bed 500. The first identification member 111 and the second identification member 112 are symmetrically arranged about the center of the scanning cavity 410, and the intersection 140 of the first identification line 121 and the second identification line 122 is located on the central axis of the scanning cavity 410. Usually, when the central identification point of the patient's surgical area 610 is located on the central axis of the scanning cavity 410, the hospital bed 500 and the patient carried by it can smoothly enter the scanning cavity 410 to complete the scanning, that is, the sign of the completion of positioning is that the central identification point of the patient's surgical area 610 is located on the central axis of the scanning cavity 410. Therefore, when the hospital bed 500 and the image scanning device 400 are relatively close, the position of the hospital bed 500 can be moved by observing the relative position of the intersection of the two marking lines and the central marking point of the patient's surgical area 610. For example, if the intersection of the two marking lines is located above the central marking point of the patient's surgical area 610, it means that the position of the hospital bed 500 is too low and the position of the hospital bed 500 needs to be moved up; if the intersection of the two marking lines is located to the left of the central marking point of the patient's surgical area 610, it means that the position of the hospital bed 500 is too right and the bed 500 needs to be moved to the left until the above-mentioned positioning requirements are met. When positioning is performed through the above-mentioned positioning system, medical staff only need to observe the relative position of the intersection of the two marking lines and the central marking point of the patient's surgical area 610 to determine the current relative position of the hospital bed 500 and the image scanning device 400, and make corresponding adjustments until the positioning is completed. In this process, medical staff do not need to repeatedly observe the relative positions of the hospital bed 500 and the image scanning device 400 with naked eyes, which can simplify the positioning process of the image scanning device 400 and the hospital bed 500 and reduce the requirements for medical staff.

[0041] In the embodiment of the present application, the image scanning device may be a computed tomography (CT) device, or a magnetic resonance imaging device or the like.

[0042] 1 to 4 , in some embodiments, the positioning device of the image scanning equipment further includes a camera module 200 for acquiring a cross-sectional image of a preset position on a hospital bed 500, the central marking point of the area to be operated 610 is located on the cross-sectional image, the first marking line 121 can form a first marking point 131 on the cross-sectional image, the second marking line 122 can form a second marking point 132 on the cross-sectional image, and the hospital bed 500 is configured to be operably moved until the first marking point 131 and the second marking point 132 both coincide with the central marking point displayed on the cross-sectional image.

[0043] Specifically, the cross-sectional image of the preset position on the bed 500, wherein the preset position can be manually set, for example, in the embodiment shown in FIG1 , the area 610 to be operated on the patient 600 is the head, and the preset position can be set to the position of the head of the patient 600. When the area 610 to be operated on the patient 600 is at other positions, the corresponding preset position can be set in advance.

[0044] In the above embodiment, the first identification line 121 can form a first identification point 131 on the cross-sectional image, and the second identification line 122 can form a second identification point 132 on the cross-sectional image. Therefore, when the hospital bed 500 and the image scanning device 400 gradually approach each other, there will be two stages. The distance between the location of the cross-sectional image and the image scanning device 400 is recorded as the first distance, and the distance between the intersection 140 of the first identification line 121 and the second identification line 122 and the image scanning device 400 is recorded as the second distance. In the first stage, the distance between the hospital bed 500 and the image scanning device 400 is relatively far, and the first distance is greater than the second distance. Therefore, the first identification point 131 and the second identification point 132 are two scattered identification points on the cross-sectional image. As the hospital bed 500 and the image scanning device 400 gradually approach each other, the two scattered identification points on the cross-sectional image will gradually approach each other until they converge at one place. At this time, it means that the first distance is equal to the second distance, and the convergence position of the two identification points is the intersection 140 of the two identification lines, which is recorded as the critical position of the hospital bed 500. Afterwards, as the hospital bed 500 and the image scanning device 400 continue to approach each other, the second stage will be entered. In the second stage, the first distance is smaller than the second distance, so the first identification point 131 and the second identification point 132 are again presented as two dispersed identification points on the cross-sectional image, and as the distance between the hospital bed 500 and the image scanning device 400 becomes closer and closer, the two dispersed identification points will gradually move away from each other. When the bed 500 and the image scanning device 400 are relatively close, the position of the bed 500 can be moved by observing the positions of the two marking points on the cross-sectional image. For example, at the critical position, if the convergence position of the first marking point 131 and the second marking point 132 (i.e., the intersection 140 of the two marking lines) is located above the central marking point of the patient 600's surgical area 610, it means that the position of the bed 500 is biased downward, and the bed 500 needs to be moved upward; if the convergence position of the first marking point 131 and the second marking point 132 (i.e., the intersection 140 of the two marking lines) is located to the left of the central marking point of the patient 600's surgical area 610, it means that the position of the bed 500 is biased to the right, and the bed 500 needs to be moved to the left until the above positioning requirements are met. When positioning is performed through the above positioning system, medical staff only need to remotely observe the positions of the two marking points on the cross-sectional image on the display screen outside the operating room to determine the current relative position of the bed 500 and the image scanning device 400, and make corresponding adjustments until the positioning is completed. During this process, two identification points and the central identification point of the area to be operated 610 are used to assist medical staff in determining the current relative positions of the hospital bed 500 and the image scanning device 400. Medical staff do not need to repeatedly observe the relative positions of the hospital bed 500 and the image scanning device 400 with the naked eye, which can simplify the positioning process of the image scanning device 400 and the hospital bed 500 and reduce the requirements for medical staff.In addition, after obtaining the cross-sectional image of a preset position on the bed 500 through the camera module 200, medical staff do not need to observe in the operating room and can achieve remote viewing.

[0045] Of course, in other embodiments, the medical staff may directly observe the relative position of the intersection of the two marking lines and the central marking point of the area to be operated on 610 in the operating room.

[0046] 1 to 4 , in some embodiments, the first identification member 111 and the second identification member 112 are both laser generators; the first identification line 121 is a first light beam, and the second identification line 122 is a second light beam; the first identification point 131 is a first light spot, and the second identification point 132 is a second light spot.

[0047] Specifically, the first light beam and the second light beam are both laser light beams, and the first light spot and the second light spot are both laser light spots, preferably colored light spots, so that medical staff can quickly see their positions on the cross-sectional image displayed on the computer screen.

[0048] Furthermore, the first identification member 111 and the second identification member 112 are fixedly mounted on the end surface of the image scanning device 400 near the bed 500 through the clamp 150. The two clamps 150 are symmetrically arranged about the center of the scanning cavity 410, and as shown in FIG4 , the two clamps 150 have a certain angle with the central axis of the scanning cavity 410 to satisfy that the first identification line 121 and the second identification line 122 have a certain angle with the central axis of the scanning cavity 410, so as to achieve that the intersection 140 of the first identification line 121 and the second identification line 122 is located on the central axis of the scanning cavity 410. Medical staff can adjust the angle between the two clamps 150 and the central axis of the scanning cavity 410 in advance to change the position of the intersection 140 on the central axis of the scanning cavity 410.

[0049] 2 , 4 and 5 , in some embodiments, the positioning device of the image scanning equipment further includes a pre-positioning tool 300 , which is used to determine whether the outer contour dimensions of the bed 500 and the patient 600 carried thereon are smaller than the diameter of the scanning cavity 410 .

[0050] Specifically, before the aforementioned positioning process is performed, the pre-positioning tool 300 can be used to make a pre-judgment to determine whether the overall outer dimensions of the hospital bed 500, the patient 600 carried thereon, and some instruments and other components are smaller than the diameter of the scanning cavity 410. If the overall outer dimensions are larger than the diameter of the scanning cavity 410, no matter how the positioning is performed, the hospital bed 500, the patient 600 carried thereon, and some instruments and other components cannot enter the scanning cavity 410. At this time, it is necessary to adjust the posture of the patient 600, or the position of the instruments, etc. to ensure that the overall outer dimensions of the patient 600 are smaller than the diameter of the scanning cavity 410, so as to ensure that the patient 600 will not collide when entering the scanning cavity 410.

[0051] 2 , 4 , and 5 , in some embodiments, the pre-positioning tool 300 is semi-annular or annular, and the inner diameter of the pre-positioning tool 300 is equal to the diameter of the scanning cavity 410 .

[0052] Specifically, in the embodiment shown in the drawings, the pre-positioning tool 300 is annular, and its center is hollowed out. Before performing the aforementioned positioning operation, it is only necessary to place the pre-positioning tool 300 at one end of the length direction of the bed 500 for comparison, and a pre-judgment can be made in advance. Since the diameter of the inner wall of the pre-positioning tool 300 is equal to the diameter of the scanning cavity 410, as long as the bed 500 and the patient 600 carried thereon, as well as some instruments and other components can be included in the inner cavity of the pre-positioning tool 300, they can smoothly enter the scanning cavity 410 without collision, thereby ensuring the safety of the scanning process.

[0053] 1 to 4 , an image scanning system provided in one embodiment of the present application includes a positioning device of the image scanning device in any one of the above embodiments, and also includes an image scanning device 400 , and an identification module and a camera module 200 are both installed on the end surface of the image scanning device 400 close to a hospital bed 500 .

[0054] The above-mentioned image scanning system, by applying the positioning device of the aforementioned image scanning device, medical staff only need to observe the relative position of the intersection of the two marking lines and the central marking point to determine the current relative position of the hospital bed 500 and the image scanning device 400, and make corresponding adjustments until the positioning is completed. In this process, medical staff do not need to repeatedly observe the relative position of the hospital bed 500 and the image scanning device 400 with the naked eye, which can simplify the positioning process of the image scanning device 400 and the hospital bed 500 and reduce the requirements for medical staff.

[0055] Specifically, the identification module and the camera module 200 are both installed on the end surface of the scanning cavity 410 entrance side of the image scanning device 400, that is, the end surface close to the side of the bed 500. Of course, in other embodiments, the camera module 200 can also be installed in other positions, as long as it can obtain a cross-sectional image of a preset position on the bed 500. The camera module 200 can be a camera with a shooting function.

[0056] 1 to 4 , in some embodiments, the heights of the first identification member 111 and the second identification member 112 are both the same as the height of the central axis of the scanning cavity 410 .

[0057] Specifically, from the perspective of FIG. 2 , the first identification member 111 and the second identification member 112 are symmetrically arranged on the left and right sides of the central axis of the scanning cavity 410 so that their heights are the same as the height of the central axis of the scanning cavity 410. As mentioned above, when the hospital bed 500 and the image scanning device 400 gradually approach each other, there will be two stages, and there is a critical position between the two stages. The positions of the two light spots at the critical position can be determined, and the position of the hospital bed 500 can be adjusted based on this to complete the positioning. When the first identification member 111 and the second identification member 112 are set according to the positions in this embodiment, not only can the position of the hospital bed 500 be determined based on the two light spots at the critical position, but the position of the hospital bed 500 can also be determined in advance in the first stage, so as to adjust the position of the hospital bed 500 as early as possible and improve the positioning efficiency.

[0058] For example, as shown in FIG6, in the first stage, if the first identification point 131 and the second identification point 132 are located below the center identification point of the area to be operated 610, it means that the position of the bed 500 is too high, and the bed 500 needs to be moved down until the heights of the first identification point 131 and the second identification point 132 are the same as the center identification point of the area to be operated 610. As shown in FIG7, in the first stage, if the first identification point 131 and the second identification point 132 are located above the center identification point of the area to be operated 610, it means that the position of the bed 500 is too low, and the bed 500 needs to be moved up until the heights of the first identification point 131 and the second identification point 132 are the same as the center identification point of the area to be operated 610.

[0059] As shown in FIG8, in the first stage, if the first identification point 131 and the second identification point 132 are obviously biased to the left of the central identification point of the surgical area 610, it means that the position of the bed 500 is biased to the right, and the bed 500 needs to be moved to the left. As shown in FIG9, in the first stage, if the first identification point 131 and the second identification point 132 are obviously biased to the right of the central identification point of the surgical area 610, it means that the position of the bed 500 is biased to the left, and the bed 500 needs to be moved to the right.

[0060] 10 , when the bed 500 reaches the critical position, the first marking point 131 and the second marking point 132 both coincide with the intersection 140 of the first marking line 121 and the second marking line 122 and are located at the center marking point of the surgical area 610 on the cross-sectional image, indicating that the positioning is completed.

[0061] Referring to FIGS. 1 to 4 , in some embodiments, the process of the image scanning device 400 and the hospital bed 500 approaching each other relatively includes a first state, a critical state, and a second state performed in sequence. In the first state and the second state, the first identification point 131 and the second identification point 132 are scattered on the cross-sectional image; in the critical state, the first identification point 131 and the second identification point 132 overlap on the cross-sectional image; the relative approach speed of the image scanning device 400 and the hospital bed 500 in the second state is less than the relative approach speed in the first state.

[0062] Specifically, the first state corresponds to the aforementioned first stage, and the second state corresponds to the aforementioned second stage; in the critical state, the hospital bed 500 is in a critical position. At the critical position, the first identification point 131 and the second identification point 132 both coincide with the intersection 140 of the first identification line 121 and the second identification line 122. By adjusting the angle between the two clamps 150 and the central axis of the scanning cavity 410, the position of the intersection 140 on the central axis of the scanning cavity 410 can be changed, that is, the critical position is adjusted. Before the critical position, the image scanning device 400 and the hospital bed 500 can approach each other at a faster speed, thereby improving efficiency; after the critical position, the image scanning device 400 and the hospital bed 500 are close to each other, and approaching each other at a lower speed can further reduce the probability of collision and improve the safety of the scanning process. During the movement, medical staff can adjust the speed at which the image scanning device 400 and the hospital bed 500 approach each other by observing the current relative position of the image scanning device 400 and the hospital bed 500.

[0063] 1 to 4 , in some embodiments, in the first state and / or the critical state, the hospital bed 500 is configured to be operably moved to reduce the relative position deviation between the image scanning device 400 and the hospital bed 500 .

[0064] Specifically, the bed 500 is moved to complete the positioning only in the first state and / or the critical state, so as to ensure that the positioning is completed when entering the second state, and the image scanning device 400 and the bed 500 only need to be brought closer to each other until the patient 600 enters the scanning cavity 410. If it is found that there is a deviation in the positioning in the second state, and there may be a risk of collision, the image scanning device 400 and the bed 500 are immediately stopped from approaching each other, and the two are allowed to continue to approach each other after the positioning is completed.

[0065] As mentioned above, in the second state, the distance between the image scanning device 400 and the hospital bed 500 is already small. In the above embodiment, the positioning process can be pre-placed in the first state and / or the critical state to reduce the probability of collision between the image scanning device 400 and the hospital bed 500 when they approach each other in the second state.

[0066] Of course, in other embodiments, if the image scanning device 400 and the hospital bed 500 are far apart in the critical state, the hospital bed 500 may continue to be moved to adjust its position when entering the second state.

[0067] 1 to 4 , in some embodiments, in a critical state, the image scanning device 400 and the hospital bed 500 stop being relatively close, and the hospital bed 500 is configured to be operably moved to reduce the relative position deviation between the image scanning device 400 and the hospital bed 500 .

[0068] Specifically, in a critical state, the relative proximity of the image scanning device 400 and the bed 500 can be stopped first, and then the bed 500 can be moved to adjust its position. In this way, it can be avoided that the distance between the image scanning device 400 and the bed 500 is very close when the position has not been adjusted, thereby further reducing the probability of collision between the two.

[0069] Of course, in other embodiments, if in the second state, the relative approach speed of the image scanning device 400 and the bed 500 is very slow, or in the critical state, the distance between the image scanning device 400 and the bed 500 is large, then when the bed 500 is moved in the critical state, there is no need to stop the relative approach of the image scanning device 400 and the bed 500.

[0070] 1 to 4 , in some embodiments, the image scanning system includes a slide rail 700 extending along the longitudinal direction of the scanning cavity 410 , and the image scanning device 400 is slidably mounted on the slide rail 700 . The image scanning device 400 can slide along the slide rail 700 to approach the bed 500 .

[0071] Specifically, the longitudinal direction of the scanning cavity 410 is also the length direction of the hospital bed 500. The image scanning device 400 slides along the slide rail 700 to approach the hospital bed 500, allowing the patient 600 to enter the scanning cavity 410 to complete the scan. In other embodiments, the hospital bed 500 may also slide to approach the image scanning device 400 until entering the scanning cavity 410. Alternatively, both the hospital bed 500 and the image scanning device 400 may slide to increase the relative approach speed and complete the scan as quickly as possible.

[0072] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0073] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A positioning device for an image scanning device, characterized in that: The positioning device of the image scanning device comprises: An identification module, used for being installed at an entrance side of a scanning cavity (410) of an image scanning device (400), the identification module comprising a first identification member (111) used for forming a first identification line (121) at the entrance side, and a second identification member (112) used for forming a second identification line (122) at the entrance side, the first identification member (111) and the second identification member (112) being symmetrically arranged about the center of the scanning cavity (410), and an intersection point (140) of the first identification line (121) and the second identification line (122) being located on the central axis of the scanning cavity (410); The bed (500) is configured to be operably moved until the intersection (140) coincides with the central marking point of the surgical area (610) of the patient (600).

2. The positioning device of the image scanning equipment according to claim 1, characterized in that: The positioning device of the image scanning device also includes a camera module (200) for acquiring a cross-sectional image of a preset position on the hospital bed (500), the central identification point being located on the cross-sectional image, the first identification line (121) being able to form a first identification point (131) on the cross-sectional image, the second identification line (122) being able to form a second identification point (132) on the cross-sectional image, and the hospital bed (500) being configured to be operable to move until both the first identification point (131) and the second identification point (132) coincide with the central identification point displayed on the cross-sectional image.

3. The positioning device of the image scanning equipment according to claim 2, characterized in that: The first identification member (111) and the second identification member (112) are both laser generators; the first identification line (121) is a first light beam, and the second identification line (122) is a second light beam; the first identification point (131) is a first light spot, and the second identification point (132) is a second light spot.

4. The positioning device of the image scanning equipment according to claim 1, characterized in that: The positioning device of the image scanning device (400) further comprises a pre-positioning tool (300), wherein the pre-positioning tool (300) is used to determine whether the outer contour dimensions of the hospital bed (500) and the patient (600) carried thereon are smaller than the diameter of the scanning cavity (410).

5. The positioning device of the image scanning equipment according to claim 4, characterized in that: The pre-positioning tool (300) is semi-annular or annular, and the inner diameter of the pre-positioning tool (300) is equal to the diameter of the scanning cavity (410).

6. An image scanning system, characterized in that: A positioning device comprising the image scanning device (400) according to any one of claims 2 to 5, further comprising the image scanning device (400), wherein the identification module and the camera module (200) are both installed on the end surface of the image scanning device (400) close to the hospital bed (500).

7. The image scanning system according to claim 6, characterized in that: The heights of both the first identification member (111) and the second identification member (112) are the same as the height of the central axis.

8. The image scanning system according to claim 7, characterized in that: The process of the image scanning device (400) and the hospital bed (500) being relatively close to each other comprises a first state, a critical state, and a second state which are performed in sequence; In the first state and the second state, the first marking point (131) and the second marking point (132) are dispersed on the cross-sectional image; In the critical state, the first identification point (131) and the second identification point (132) coincide on the cross-sectional image; and the relative approach speed of the image scanning device (400) and the hospital bed (500) in the second state is less than the relative approach speed in the first state.

9. The image scanning system according to claim 8, characterized in that: In the first state and / or the critical state, the hospital bed (500) is configured to be operably movable to reduce the relative position deviation between the image scanning device (400) and the hospital bed (500).

10. The image scanning system according to claim 9, characterized in that: In the critical state, the image scanning device (400) and the hospital bed (500) stop being relatively close, and the hospital bed (500) is configured to be operably moved to reduce the relative position deviation between the image scanning device (400) and the hospital bed (500).

11. The image scanning system according to any one of claims 6 to 10, characterized in that: The image scanning system comprises a slide rail (700) extending along the longitudinal direction of the scanning cavity (410), and the image scanning device (400) is slidably mounted on the slide rail (700). The image scanning device (400) can slide along the slide rail (700) to approach the hospital bed (500).

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