A method, apparatus and cassette assembly for determining the orientation of a flat panel detector

Abstract

The embodiment of the present application discloses a method, device and cassette assembly for determining the direction of a flat panel detector. The cassette assembly comprises a cassette, a flat panel detector arranged in the cassette, and an object detection sensor arranged on the inner wall of the cassette. The flat panel detector comprises a first area adapted to be detected by the object detection sensor and a second area adapted to not be detected by the object detection sensor. The object detection sensor is used to detect the flat panel detector and generate a detection result corresponding to the arrangement direction of the flat panel detector in the cassette. The embodiment of the present application can determine the direction of the flat panel detector without contacting the flat panel detector, thereby avoiding the abrasion of the flat panel detector. In addition, the direction of the flat panel detector can be determined in multiple ways, thereby being widely applicable.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a method, apparatus and cassette assembly for determining the orientation of a flat panel detector. Background Technology

[0002] X-rays are electromagnetic radiation with wavelengths between ultraviolet and gamma rays. X-rays are penetrating, penetrating materials of varying densities to varying degrees. In medicine, X-rays are commonly used to project images of human organs and bones to create medical images.

[0003] An X-ray imaging system typically includes an X-ray generator assembly, a chest frame (Bucky-Wall-Stand, BWS) assembly, an examination table assembly, a film cassette assembly containing a flat panel detector, and a remotely located control unit. The X-ray generator assembly uses high voltage provided by a high-voltage generator to emit X-rays that pass through and irradiate the target, forming a medical image of the target on the flat panel detector. The flat panel detector transmits the medical image information to the control unit. The target can stand near the chest frame assembly or lie on the examination table assembly to receive X-ray imaging of various parts of the body, such as the head, chest, abdomen, and joints.

[0004] Before X-ray exposure, the orientation of the flat panel detector needs to be determined. Currently, limit switches arranged on a tray are commonly used to detect the orientation of the flat panel detector. However, in this method, the flat panel detector has physical contact with the limit switch, which may cause wear and tear on the flat panel detector. In addition, the limit switches are often difficult to distinguish between opposite orientations of the flat panel detector. Summary of the Invention

[0005] The present invention provides a method, apparatus, and cassette assembly for determining the orientation of a flat panel detector.

[0006] The technical solution of the embodiments of the present invention is as follows:

[0007] A film cassette assembly for an X-ray imaging system, comprising:

[0008] Tablet box;

[0009] A flat panel detector is arranged in the cassette.

[0010] An object detection sensor is arranged on the inner wall of the chip box;

[0011] The flat panel detector includes a first region adapted to be detected by the object detection sensor and a second region adapted not to be detected by the object detection sensor; wherein the object detection sensor is used to detect the flat panel detector and generate a detection result corresponding to the arrangement direction of the flat panel detector in the cassette.

[0012] As can be seen, the arrangement direction of the flat panel detector in the embodiment of the present invention corresponds to the detection result of the object detection sensor. Therefore, there is no need for physical contact with the flat panel detector. The arrangement direction of the flat panel detector can be determined based on the detection result of the object detection sensor, realizing a non-contact method for determining the direction of the flat panel detector and avoiding wear on the flat panel detector.

[0013] In one embodiment, the object detection sensor includes a first photoelectric sensor and a second photoelectric sensor, which are arranged on the same inner wall of the cassette.

[0014] Therefore, the embodiments of the present invention achieve low-cost and accurate detection through photoelectric sensors, and the first and second photoelectric sensors can be conveniently arranged.

[0015] In one embodiment, the first region is arranged on the first sidewall, second sidewall, third sidewall, and fourth sidewall of the flat panel detector; the second region is arranged on the first sidewall, second sidewall, and third sidewall of the flat panel detector.

[0016] As can be seen, the embodiment of the present invention arranges the first region and the second region on the side wall of the flat panel detector, which can avoid adverse effects on the X-ray detection operation of the flat panel detector.

[0017] In one embodiment, the first region includes: a first film layer disposed on the first sidewall; a second film layer disposed on the second sidewall; a third film layer disposed on the third sidewall; and a fourth film layer disposed on the fourth sidewall.

[0018] The second region includes: a first additional film and a second additional film, respectively disposed on the first film layer; a third additional film, disposed on the second film layer; and a fourth additional film, disposed on the third film layer.

[0019] When the first sidewall is close to the first photoelectric sensor and the second photoelectric sensor, the first additional film is within the detection range of the first photoelectric sensor, and the second additional film is within the detection range of the second photoelectric sensor; when the second sidewall is close to the first photoelectric sensor and the second photoelectric sensor, the third additional film is within the detection range of the second photoelectric sensor; when the third sidewall is close to the first photoelectric sensor and the second photoelectric sensor, the fourth additional film is within the detection range of the first photoelectric sensor.

[0020] The first, second, third, and fourth film layers contain material components adapted to be detected by the first and second photoelectric sensors, or the first, second, third, and fourth film layers have colors adapted to be detected by the first and second photoelectric sensors; the first, second, third, and fourth additional films contain material components adapted to be undetected by the first and second photoelectric sensors, or the first, second, third, and fourth additional films have colors adapted to be undetected by the first and second photoelectric sensors.

[0021] As can be seen, the embodiments of the present invention can conveniently implement the first region and the second region by means of a film.

[0022] In one embodiment, the first film layer, the second film layer, the third film layer, and the fourth film layer are white;

[0023] The first, second, third, and fourth additional films are black.

[0024] Therefore, embodiments of the present invention can conveniently implement the first region and the second region through color differences.

[0025] A method for determining the orientation of a flat panel detector, comprising:

[0026] The detection results of an object detection sensor arranged on the inner wall of a cassette for a flat panel detector are obtained, wherein the flat panel detector is arranged in the cassette and the flat panel detector includes a first area adapted to be detected by the object detection sensor and a second area adapted to not be detected by the object detection sensor.

[0027] Based on the correspondence between the preset arrangement direction of the flat panel detector in the chip box and the preset detection results of the object detection sensor for the flat panel detector, as well as the detection results, the arrangement direction of the flat panel detector in the chip box is determined.

[0028] As can be seen, the arrangement direction of the flat panel detector in the embodiment of the present invention corresponds to the detection result of the object detection sensor. Therefore, there is no need for physical contact with the flat panel detector. The arrangement direction of the flat panel detector can be determined based on the detection result of the object detection sensor, realizing a non-contact method for determining the direction of the flat panel detector and avoiding wear on the flat panel detector.

[0029] In one embodiment, acquiring the detection results of the object detection sensor arranged on the inner wall of the cassette for the flat panel detector includes:

[0030] The detection result is acquired from the object detection sensor via wired communication; or

[0031] The detection result is obtained from the object detection sensor via wireless communication.

[0032] Therefore, the embodiments of the present invention can obtain detection results from object detection sensors in a variety of ways, and have the advantage of wide applicability.

[0033] In one embodiment, the object detection sensor includes a first photoelectric sensor and a second photoelectric sensor, which are arranged on the same inner wall of the cassette.

[0034] The first region includes: a first film layer disposed on the first sidewall of the flat panel detector; a second film layer disposed on the second sidewall of the flat panel detector; a third film layer disposed on the third sidewall of the flat panel detector; and a fourth film layer disposed on the fourth sidewall of the flat panel detector.

[0035] The second region includes: a first additional film and a second additional film, respectively disposed on the first film layer; a third additional film, disposed on the second film layer; and a fourth additional film, disposed on the third film layer.

[0036] When the first sidewall is close to the first photoelectric sensor and the second photoelectric sensor, the first additional film is within the detection range of the first photoelectric sensor, and the second additional film is within the detection range of the second photoelectric sensor; when the second sidewall is close to the first photoelectric sensor and the second photoelectric sensor, the third additional film is within the detection range of the second photoelectric sensor; when the third sidewall is close to the first photoelectric sensor and the second photoelectric sensor, the fourth additional film is within the detection range of the first photoelectric sensor.

[0037] The first, second, third, and fourth film layers contain material components adapted to be detected by the first and second photoelectric sensors, or the first, second, third, and fourth film layers have colors adapted to be detected by the first and second photoelectric sensors; the first, second, third, and fourth additional films contain material components adapted to be undetected by the first and second photoelectric sensors, or the first, second, third, and fourth additional films have colors adapted to be undetected by the first and second photoelectric sensors.

[0038] As can be seen, the embodiments of the present invention can conveniently implement the first region and the second region by means of a film.

[0039] An apparatus for determining the orientation of a flat panel detector, comprising:

[0040] The acquisition module is used to acquire the detection results of the object detection sensor arranged on the inner wall of the chip box for the flat panel detector, wherein the flat panel detector is arranged in the chip box and the flat panel detector includes a first area adapted to be detected by the object detection sensor and a second area adapted to not be detected by the object detection sensor.

[0041] The determination module is used to determine the arrangement direction of the flat panel detector in the film box based on the correspondence between the preset arrangement direction of the flat panel detector in the film box and the preset detection result of the object detection sensor for the flat panel detector, as well as the detection result.

[0042] As can be seen, the arrangement direction of the flat panel detector in the embodiment of the present invention corresponds to the detection result of the object detection sensor. Therefore, there is no need for physical contact with the flat panel detector. The arrangement direction of the flat panel detector can be determined based on the detection result of the object detection sensor, realizing a non-contact method for determining the direction of the flat panel detector and avoiding wear on the flat panel detector.

[0043] In one embodiment, the acquisition module is configured to acquire the detection result from the object detection sensor via wired communication or via wireless communication.

[0044] Therefore, the embodiments of the present invention can obtain detection results from object detection sensors in a variety of ways, and have the advantage of wide applicability.

[0045] A control unit for an X-ray imaging system, including a processor and a memory;

[0046] The memory stores an application program that can be executed by the processor, which causes the processor to perform the method for determining the orientation of the flat panel detector as described above.

[0047] Therefore, the present invention also proposes a control host that can determine the arrangement direction of the flat panel detector based on the detection results of the object detection sensor without physical contact with the flat panel detector, thus avoiding wear and tear on the flat panel detector.

[0048] A computer-readable storage medium storing computer-readable instructions for performing the method of determining the orientation of a flat panel detector as described in any of the preceding claims.

[0049] Therefore, this invention also proposes a computer-readable storage medium that can determine the arrangement direction of the flat panel detector based on the detection results of the object detection sensor without physical contact with the flat panel detector, thus realizing a non-contact method for determining the direction of the flat panel detector and avoiding wear on the flat panel detector. Attached Figure Description

[0050] Figure 1 This is a structural diagram of the film cassette assembly of an X-ray imaging system according to an embodiment of the present invention.

[0051] Figure 2 This is a first schematic diagram of an object detection sensor detecting an object according to an embodiment of the present invention.

[0052] Figure 3 This is a second schematic diagram of an object detection sensor detecting an object according to an embodiment of the present invention.

[0053] Figure 4 This is a first exemplary schematic diagram for determining the orientation of a flat panel detector according to an embodiment of the present invention.

[0054] Figure 5 This is a second exemplary schematic diagram for determining the orientation of a flat panel detector according to an embodiment of the present invention.

[0055] Figure 6 This is a third exemplary schematic diagram for determining the orientation of a flat panel detector according to an embodiment of the present invention.

[0056] Figure 7 This is a fourth exemplary schematic diagram illustrating the determination of the orientation of a flat panel detector according to an embodiment of the present invention.

[0057] Figure 8 This is a schematic diagram of a film cassette assembly of an X-ray imaging system according to an embodiment of the present invention.

[0058] Figure 9 A flowchart illustrating a method for determining the orientation of a flat panel detector according to an embodiment of the present invention.

[0059] Figure 10 This is a structural diagram of an apparatus for determining the orientation of a flat panel detector according to an embodiment of the present invention.

[0060] Figure 11 This is an exemplary structural diagram of the control host of an X-ray imaging system according to an embodiment of the present invention.

[0061] The reference numerals in the attached figures are as follows:

[0062]

[0063] Detailed Implementation

[0064] To make the technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the scope of protection of the present invention.

[0065] For the sake of brevity and intuitiveness, the following description uses several representative embodiments to illustrate the solution of the present invention. Numerous details in the embodiments are only used to aid in understanding the solution of the present invention. However, it is obvious that the technical solution of the present invention can be implemented without being limited to these details. To avoid unnecessarily obscuring the solution of the present invention, some embodiments are not described in detail, but only a framework is given. In the following text, "comprising" means "including but not limited to," and "according to..." means "at least according to..., but not limited to only according to...". Due to Chinese language habits, unless the quantity of a component is specifically indicated below, it means that the component can be one or more, or can be understood as at least one.

[0066] Considering the many drawbacks of determining the orientation of a flat panel detector through physical contact (such as wear and tear on the flat panel detector), this invention proposes a non-contact method for determining the orientation of a flat panel detector.

[0067] Figure 1 This is a structural diagram of the film cassette assembly of an X-ray imaging system according to an embodiment of the present invention.

[0068] like Figure 1 As shown, the film cassette assembly 10 of the X-ray imaging system includes:

[0069] Box 11;

[0070] A flat panel detector 12 is arranged in a chip box 11;

[0071] An object detection sensor 13 is arranged on the inner wall of the chip box 11;

[0072] The flat panel detector 12 includes a first region 14 adapted to be detected by the object detection sensor 13 and a second region 15 adapted to be undetected by the object detection sensor 13; wherein the object detection sensor 13 is used to detect the flat panel detector 12 and generate a detection result corresponding to the arrangement direction of the flat panel detector 12 in the cassette 11.

[0073] Here, the first region 14 and the second region 15 arranged in the flat panel detector 12 are such that the arrangement direction of the flat panel detector 12 in the chip cassette 11 corresponds to the detection result of the object detection sensor 13 on the flat panel detector 12. Therefore, the arrangement direction of the flat panel detector 12 in the chip cassette 11 can be determined based on the detection result of the object detection sensor 13 on the flat panel detector 12.

[0074] Specifically, the film cassette 11 may include a front panel and a rear housing, wherein a flat panel detector 12 can be inserted between the front panel and the rear housing. The film cassette 11 may also include a handrail.

[0075] The first region 14 in the flat panel detector 12 is adapted to be detected by the object detection sensor 13. Figure 2 This is a first schematic diagram of an object detection sensor detecting an object according to an embodiment of the present invention.

[0076] Depend on Figure 2 As can be seen, when the first region 14 is within the detection range of the object detection sensor 13, the light emitted by the object detection sensor 13 reaches the first region 14. The object detection sensor 13 receives the reflected light from the first region 14, thereby detecting the presence of the first region 14 and generating a detection result (e.g., a high level) characterizing the detected target (i.e., the first region 14). For example, the first region 14 contains a highly reflective material. When the detection light emitted by the object detection sensor 13 reaches the first region 14, the intensity of the light reflected back to the object detection sensor 13 from the first region 14 is higher than a predetermined threshold value. Therefore, the object detection sensor 13 generates a high level characterizing the detected target.

[0077] The second region 15 in the flat panel detector 12 is adapted to not be detected by the object detection sensor 13. Figure 3 This is a second schematic diagram of an object detection sensor detecting an object according to an embodiment of the present invention.

[0078] Depend on Figure 3 As can be seen, when the second region 15 is within the detection range of the object detection sensor 13, the light emitted by the object detection sensor 13 reaches the second region 15. The second region 15 does not reflect (or reflects very little) the light, therefore the object detection sensor 13 cannot detect the presence of the second region 15 and generate a detection result (e.g., a low level) indicating that no target (i.e., the second region 15) has been detected. For example, if the second region 15 contains a low reflectivity material, after the detection light emitted by the object detection sensor 13 reaches the second region 15, the intensity of the light reflected back to the object detection sensor 13 by the second region 15 is lower than a predetermined threshold value, therefore the object detection sensor 13 generates a low level indicating that no target has been detected.

[0079] Considering that the flat panel detectors 12 are typically arranged in four directions within the cassette 11, and the number of detection results corresponding to these four directions is also four, the number of object detection sensors 13 is preferably two. The four detection results corresponding to the four arrangement directions can be characterized by the two output results (high level or low level) provided by each object detection sensor 13.

[0080] In one embodiment, the object detection sensor includes a first photoelectric sensor and a second photoelectric sensor, which are arranged on the same inner wall or different inner walls of the film cassette. For ease of deployment, it is preferable to arrange the first and second photoelectric sensors on the same inner wall of the film cassette 11.

[0081] The flat panel detector 12 is typically rectangular in shape. The upper wall of the flat panel detector 12 is adapted to receive X-rays, and the lower wall is adapted to be fixed on a tray. Therefore, to avoid adverse effects on the X-ray detection operation of the flat panel detector, the first region 14 and the second region 15 can be arranged on the side wall of the flat panel detector 12.

[0082] For example, a first region 14 is arranged on each side wall of the flat panel detector 12, and a second region 15 is arranged on at least three side walls of the flat panel detector 12.

[0083] Specifically, the first region 14 includes: a first adhesive layer disposed on the first sidewall; a second adhesive layer disposed on the second sidewall; a third adhesive layer disposed on the third sidewall; and a fourth adhesive layer disposed on the fourth sidewall. Preferably, the first adhesive layer may cover all or part of the surface of the first sidewall; the second adhesive layer may cover all or part of the surface of the second sidewall; the third adhesive layer may cover all or part of the surface of the third sidewall; and the fourth adhesive layer may cover all or part of the surface of the fourth sidewall. For example, the first, second, third, and fourth adhesive layers may be disposed on their respective sidewalls by means of adhesion.

[0084] The second region 15 includes: a first additional film and a second additional film, respectively disposed on the first film layer; a third additional film, disposed on the second film layer; and a fourth additional film, disposed on the third film layer.

[0085] When the first sidewall is close to the first and second photoelectric sensors, the first additional film is within the detection range of the first photoelectric sensor, and the second additional film is within the detection range of the second photoelectric sensor; when the second sidewall is close to the first and second photoelectric sensors, the third additional film is within the detection range of the second photoelectric sensor; when the third sidewall is close to the first and second photoelectric sensors, the fourth additional film is within the detection range of the first photoelectric sensor; wherein the first, second, third, and fourth film layers contain material components adapted to be detected by the first and second photoelectric sensors, or the first, second, third, and fourth film layers have colors adapted to be detected by the first and second photoelectric sensors; the first, second, third, and fourth additional films contain material components adapted to not be detected by the first and second photoelectric sensors, or the first, second, third, and fourth additional films have colors adapted to not be detected by the first and second photoelectric sensors.

[0086] The following describes a specific example of an embodiment of the present invention, using the arrangement of four flat panel detectors 12 in the chip box as an example.

[0087] Figure 4 This is a first exemplary schematic diagram for determining the orientation of a flat panel detector according to an embodiment of the present invention. Figure 5 This is a second exemplary schematic diagram for determining the orientation of a flat panel detector according to an embodiment of the present invention. Figure 6 This is a third exemplary schematic diagram for determining the orientation of a flat panel detector according to an embodiment of the present invention. Figure 7 This is a fourth exemplary schematic diagram illustrating the determination of the orientation of a flat panel detector according to an embodiment of the present invention.

[0088] Depend on Figures 4-7 As can be seen, the flat panel detector 12 can be arranged on the tray 16 in four different directions. The tray 16 is arranged in the cassette. Figures 4-7 (Not shown in the image). The first photoelectric sensor 131 and the second photoelectric sensor 132 are fixedly arranged on the same side wall of the cassette. The first photoelectric sensor 131 and the second photoelectric sensor 132 are used to detect the flat panel detector 12.

[0089] The flat panel detector 12 has a rectangular cross-section ABCD. White films that completely cover the first sidewall 22, the second sidewall 23, the third sidewall 20, and the fourth sidewall 21 of the flat panel detector 12 are respectively arranged.

[0090] The white film on the first sidewall 22 is further covered with a first additional film 153 and a second additional film 154. When the first sidewall 22 is close to the first photoelectric sensor 131 and the second photoelectric sensor 132 (equivalent to...), the white film on the first sidewall 22 is further covered with a first additional film 153 and a second additional film 154. Figure 7 When the line BC shown is close to the first photoelectric sensor 131 and the second photoelectric sensor 132: the first additional film 153 is within the detection range of the first photoelectric sensor 131 but is not detected by the first photoelectric sensor 131; the second additional film 154 is within the detection range of the second photoelectric sensor 132 but is not detected by the second photoelectric sensor 132. Preferably, the first additional film 153 and the second additional film 154 are both black films.

[0091] A third additional film 152 is applied to the white film on the second sidewall 23. When the second sidewall 23 is close to the first photoelectric sensor 131 and the second photoelectric sensor 132 (equivalent to...), a third additional film 152 is applied. Figure 6 When the line CD shown is close to the first photoelectric sensor 131 and the second photoelectric sensor 132: the third additional film 152 is within the detection range of the second photoelectric sensor 132 and is not detected by the second photoelectric sensor 132. Preferably, the third additional film 152 is implemented as a black film.

[0092] A fourth additional film 151 is covered on the white film of the third sidewall 20. When the third sidewall 20 is close to the first photoelectric sensor 131 and the second photoelectric sensor 132 (equivalent to...), a fourth additional film 151 is applied. Figure 5 When the line DA shown is close to the first photoelectric sensor 131 and the second photoelectric sensor 13), the fourth additional film 151 is within the detection range of the first photoelectric sensor 131 and is not detected by the first photoelectric sensor 131. Preferably, the fourth additional film 151 is implemented as a black film.

[0093] No additional film was deployed on the fourth sidewall 21.

[0094] The following explains how the orientation of the flat panel detector 12 is determined.

[0095] (1) When the flat panel detector 12 follows Figure 4 When arranged on tray 16 in the indicated direction: Due to the high reflectivity of the white film on the fourth sidewall 21, both the first photoelectric sensor 131 and the second photoelectric sensor 132 can detect the flat panel detector 12. The detection result of the first photoelectric sensor 131 is high level ("1"), and the detection result of the second photoelectric sensor 132 is also high level ("1"). The detection results of the first photoelectric sensor 131 and the second photoelectric sensor 132 can be combined into a data packet with the content "11", and this data packet with the content "11" can be sent to the control host via wired or wireless communication.

[0096] (2) When the flat panel detector 12 follows Figure 5When arranged on tray 16 in the indicated direction: due to the high reflectivity of the white film on the third sidewall 20, the second photoelectric sensor 132, whose detection range is not covered by the fourth additional film 151, can detect the flat panel detector 12; due to the low reflectivity of the fourth additional film 151 on the third sidewall 20, the first photoelectric sensor 131, whose detection range is covered by the fourth additional film 151, cannot detect the flat panel detector 12. The detection result of the first photoelectric sensor 131 is low level ("0"), and the detection result of the second photoelectric sensor 132 is high level ("1"). The detection results of the first photoelectric sensor 131 and the second photoelectric sensor 132 can be combined into a data packet with the content "01", and this data packet with the content "01" can be sent to the control host via wired communication or wireless communication.

[0097] (3) When the flat panel detector 12 follows Figure 6 When arranged on tray 16 in the indicated direction: due to the high reflectivity of the white film on the second sidewall 23, the first photoelectric sensor 131, whose detection range is not covered by the third additional film 152, can detect the flat panel detector 12; due to the low reflectivity of the third additional film 152 on the second sidewall 23, the second photoelectric sensor 132, whose detection range is covered by the third additional film 152, cannot detect the flat panel detector 12. The detection result of the first photoelectric sensor 131 is high level ("1"), and the detection result of the second photoelectric sensor 132 is low level ("0"). The detection results of the first photoelectric sensor 131 and the second photoelectric sensor 132 can be combined into a data packet with the content "10", and this data packet with the content "10" can be sent to the control host via wired communication or wireless communication.

[0098] (4) When the flat panel detector 12 follows Figure 7 When arranged on tray 16 in the indicated direction: due to the low reflectivity of the first additional film 153 on the first sidewall 23, the first photoelectric sensor 131, whose detection range is covered by the first additional film 153, cannot detect the flat panel detector 12; due to the low reflectivity of the second additional film 154 on the first sidewall 23, the second photoelectric sensor 132, whose detection range is covered by the second additional film 154, cannot detect the flat panel detector 12. The detection result of the first photoelectric sensor 131 is low level ("0"), and the detection result of the second photoelectric sensor 132 is low level ("0"). The detection results of the first photoelectric sensor 131 and the second photoelectric sensor 132 can be combined into a data packet with the content "00", and this data packet with the content "00" can be sent to the control host via wired communication or wireless communication.

[0099] On the control host side, a pre-stored correspondence between data packet content and the arrangement orientation of the flat panel detector 12 is established. This correspondence specifically includes:

[0100] (1) When the content is "11", the direction of the flat panel detector 12 is as follows: Figure 4 As shown;

[0101] (2) When the content is "01", the direction of the flat panel detector 12 is as follows: Figure 5 As shown;

[0102] (3) When the content is "10", the 12-direction flat panel detector is as follows: Figure 6 As shown;

[0103] (4) When the content is "00", the 12-direction flat panel detector is as follows: Figure 7 As shown.

[0104] Therefore, the control host can automatically determine the direction of the flat panel detector 12 based on the content of the received data packet and the above correspondence.

[0105] In the above description, the example given is that the first photoelectric sensor 131 and the second photoelectric sensor 132 are arranged on the same inner wall of the wafer cassette. In reality, the first photoelectric sensor 131 and the second photoelectric sensor 132 can also be arranged on different inner walls of the wafer cassette.

[0106] exist Figures 4-7 The embodiments of the first region 14 and the second region 15 are described in detail below. Those skilled in the art will recognize that this description is merely exemplary and not intended to limit the scope of protection of the embodiments of the present invention. In fact, as long as the arrangement direction of the flat panel detector 12 in the cassette 11 corresponds to the detection result of the object detection sensor 13 on the flat panel detector 12, the direction of the flat panel detector 12 can be determined in a non-contact manner based on this correspondence. For example, the arrangement positions of the first additional film 153, the second additional film 154, the third additional film 152, and the fourth additional film 151 can also be changed.

[0107] Figure 8 This is a schematic diagram of a film cassette assembly of an X-ray imaging system according to an embodiment of the present invention.

[0108] As can be seen, a tray 16 can be inserted between the panel and the rear shell of the cartridge 11 to form a cartridge assembly, and a flat panel detector is arranged on the tray 16. The cartridge assembly can be arranged on the column via a slide rail, and the cartridge assembly can slide vertically and horizontally on the column.

[0109] Figure 9 This is a flowchart illustrating a method for determining the orientation of a flat panel detector according to an embodiment of the present invention. This method is preferably executed by the control unit of an X-ray imaging system.

[0110] like Figure 9 As shown, the method 400 includes:

[0111] Step 401: Obtain the detection results of the object detection sensor arranged on the inner wall of the film box for the flat panel detector, wherein the flat panel detector is arranged in the film box and the flat panel detector includes a first area adapted to be detected by the object detection sensor and a second area adapted to not be detected by the object detection sensor.

[0112] Step 402: Based on the correspondence between the preset arrangement direction of the flat panel detector in the film box and the preset detection results of the object detection sensor for the flat panel detector, and the detection results, determine the arrangement direction of the flat panel detector in the film box.

[0113] In one embodiment, acquiring the detection result of the object detection sensor arranged on the inner wall of the chip box for the flat panel detector includes: acquiring the detection result from the object detection sensor via wired communication; or acquiring the detection result from the object detection sensor via wireless communication.

[0114] In one embodiment, the object detection sensor includes a first photoelectric sensor and a second photoelectric sensor, which are arranged on the same inner wall of the cassette. The first region includes: a first adhesive layer disposed on a first sidewall of the flat panel detector; a second adhesive layer disposed on a second sidewall of the flat panel detector; a third adhesive layer disposed on a third sidewall of the flat panel detector; and a fourth adhesive layer disposed on a fourth sidewall of the flat panel detector. The second region includes: a first additional adhesive layer and a second additional adhesive layer, respectively disposed on the first adhesive layer; a third additional adhesive layer disposed on the second adhesive layer; and a fourth additional adhesive layer disposed on the third adhesive layer. When the first sidewall is close to the first and second photoelectric sensors, the first additional adhesive layer is within the detection range of the first photoelectric sensor, and the second additional adhesive layer is within the detection range of the second photoelectric sensor. When the second sidewall is close to the first and second photoelectric sensors, the first additional adhesive layer is within the detection range of the first photoelectric sensor, and the second additional adhesive layer is within the detection range of the second photoelectric sensor. When the third additional film is near the first and second photoelectric sensors, it is within the detection range of the second photoelectric sensor; when the third sidewall is near the first and second photoelectric sensors, the fourth additional film is within the detection range of the first photoelectric sensor; wherein the first, second, third, and fourth film layers contain material components adapted to be detected by the first and second photoelectric sensors, or the first, second, third, and fourth film layers have colors adapted to be detected by the first and second photoelectric sensors; the first, second, third, and fourth additional films contain material components adapted to not be detected by the first and second photoelectric sensors, or the first, second, third, and fourth additional films have colors adapted to not be detected by the first and second photoelectric sensors.

[0115] Based on the above description, embodiments of the present invention also propose a device for determining the orientation of a flat panel detector.

[0116] Figure 10 This is a structural diagram of an apparatus for determining the orientation of a flat panel detector according to an embodiment of the present invention.

[0117] like Figure 10 As shown, the device 500 for determining the orientation of the flat panel detector includes:

[0118] The acquisition module 501 is used to acquire the detection results of the object detection sensor arranged on the inner wall of the chip box for the flat panel detector, wherein the flat panel detector is arranged in the chip box and the flat panel detector includes a first area adapted to be detected by the object detection sensor and a second area adapted to not be detected by the object detection sensor.

[0119] The determining module 502 is used to determine the arrangement direction of the flat panel detector in the film box based on the correspondence between the preset arrangement direction of the flat panel detector in the film box and the preset detection result of the object detection sensor for the flat panel detector, as well as the detection result.

[0120] In one embodiment, the acquisition module 501 is used to acquire the detection result from the object detection sensor via wired communication or via wireless communication.

[0121] Figure 11 This is an exemplary structural diagram of the control host of an X-ray imaging system according to an embodiment of the present invention.

[0122] like Figure 11 As shown, the control host 600 includes a processor 601, a memory 602, and a computer program stored in the memory 602 and executable on the processor 601. When executed by the processor 601, the computer program implements the method 400 for determining the direction of the flat panel detector as described above. Specifically, the memory 602 can be implemented as various storage media such as electrically erasable programmable read-only memory (EEPROM), flash memory, and programmable programmable read-only memory (PROM). The processor 601 can be implemented as including one or more central processing units (CPUs) or one or more field-programmable gate arrays (FPGAs), wherein the FPGA integrates one or more CPU cores. Specifically, the CPU or CPU core can be implemented as a CPU, MCU, DSP, etc.

[0123] It should be noted that not all steps and modules in the above processes and structural diagrams are mandatory; some steps or modules can be omitted as needed. The execution order of the steps is not fixed and can be adjusted as required. The division of modules is merely for the convenience of description and functional division. In actual implementation, a module can be implemented by multiple modules, and the functions of multiple modules can also be implemented by the same module. These modules can be located in the same device or in different devices.

[0124] The hardware modules in each embodiment can be implemented mechanically or electronically. For example, a hardware module may include specially designed permanent circuitry or logic devices (such as dedicated processors, such as FPGAs or ASICs) to perform specific operations. A hardware module may also include programmable logic devices or circuitry (such as general-purpose processors or other programmable processors) temporarily configured by software to perform specific operations. The choice between mechanical implementation, dedicated permanent circuitry, or temporarily configured circuitry (such as software-configured circuitry) can be made based on cost and time considerations.

[0125] The present invention also provides a machine-readable storage medium storing instructions for causing a machine to execute the methods described in this application. Specifically, a system or apparatus equipped with a storage medium storing software program code that implements the functions of any of the embodiments described above can be provided, and the computer (or CPU or MPU) of the system or apparatus can read and execute the program code stored in the storage medium. Furthermore, the operating system or the like operating on the computer can perform some or all of the actual operations through instructions based on the program code. The program code read from the storage medium can also be written to a memory located in an expansion board inserted into the computer or to a memory located in an expansion unit connected to the computer, and then the CPU or the like installed on the expansion board or expansion unit can execute some or all of the actual operations based on the instructions of the program code, thereby realizing the functions of any of the embodiments described above.

[0126] Storage media implementations for providing program code include floppy disks, hard disks, magneto-optical disks, optical disks (such as CD-ROM, CD-R, CD-RW, DVD-ROM, DVD-RAM, DVD-RW, DVD+RW), magnetic tapes, non-volatile memory cards, and ROMs. Alternatively, program code can be downloaded from a server computer or the cloud via a communication network.

[0127] In this document, "illustrative" means "serving as an example, illustration, or description," and any illustration or embodiment described herein as "illustrative" should not be construed as a preferred or more advantageous technical solution. For the sake of brevity, the figures only schematically represent the parts relevant to the invention and do not represent their actual structure as a product. Furthermore, for the sake of clarity and ease of understanding, in some figures, components with the same structure or function are only schematically depicted, or only one is labeled. In this document, "a" does not mean that the number of relevant parts of the invention is limited to "only one," and "a" does not exclude the possibility that the number of relevant parts of the invention is "more than one." In this document, terms such as "upper," "lower," "front," "rear," "left," "right," "inner," and "outer" are used only to indicate the relative positional relationship between relevant parts, and not to limit the absolute position of these relevant parts.

[0128] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A cassette assembly (10) for an X-ray imaging system, characterized in that, include: Tablet box (11); A flat panel detector (12) is arranged in the cassette (11); An object detection sensor (13) is arranged on the inner wall of the cassette (11); The flat panel detector (12) includes a first region (14) adapted to be detected by the object detection sensor (13) and a second region (15) adapted not to be detected by the object detection sensor (13), the first region (14) and the second region (15) being arranged on the sidewall of the flat panel detector (12). The object detection sensor (13) is used to detect the flat panel detector (12) and generate a detection result corresponding to the arrangement direction of the flat panel detector (12) in the cassette (11); The arrangement direction of the flat panel detector (12) in the cassette (11) corresponds to the detection result of the object detection sensor (13) on the flat panel detector (12).

2. The cassette assembly (10) of the X-ray imaging system according to claim 1, characterized in that, The object detection sensor (13) includes a first photoelectric sensor (131) and a second photoelectric sensor (132), which are arranged on the same inner wall of the cassette (11).

3. The cassette assembly (10) of the X-ray imaging system according to claim 2, characterized in that, The first region (14) is arranged on the first sidewall (22), second sidewall (23), third sidewall (20) and fourth sidewall (24) of the flat panel detector (12); The second region (15) is arranged on the first sidewall (22), the second sidewall (23) and the third sidewall (20) of the flat panel detector (12).

4. The cassette assembly (10) of the X-ray imaging system according to claim 3, characterized in that, The first region (14) includes: a first film layer disposed on the first sidewall (22); a second film layer disposed on the second sidewall (23); a third film layer disposed on the third sidewall (20); and a fourth film layer disposed on the fourth sidewall (24). The second region (15) includes: a first additional film (153) and a second additional film (154), respectively disposed on the first film layer; a third additional film (152) disposed on the second film layer; and a fourth additional film (151) disposed on the third film layer. When the first sidewall (22) is close to the first photoelectric sensor (131) and the second photoelectric sensor (132), the first additional film (153) is within the detection range of the first photoelectric sensor (131), and the second additional film (154) is within the detection range of the second photoelectric sensor (132); when the second sidewall (23) is close to the first photoelectric sensor (131) and the second photoelectric sensor (132), the third additional film (152) is within the detection range of the second photoelectric sensor (132); when the third sidewall (20) is close to the first photoelectric sensor (131) and the second photoelectric sensor (132), the fourth additional film (151) is within the detection range of the first photoelectric sensor (131). The first, second, third, and fourth film layers contain material components adapted to be detected by the first photoelectric sensor (131) and the second photoelectric sensor (132), or the first, second, third, and fourth film layers have colors adapted to be detected by the first photoelectric sensor (131) and the second photoelectric sensor (132); the first additional film (153), second additional film (154), third additional film (152), and fourth additional film (151) contain material components adapted to be undetected by the first photoelectric sensor (131) and the second photoelectric sensor (132), or the first additional film (153), second additional film (154), third additional film (152), and fourth additional film (151) have colors adapted to be undetected by the first photoelectric sensor (131) and the second photoelectric sensor (132).

5. The cassette assembly (10) of the X-ray imaging system according to claim 4, characterized in that, The first, second, third, and fourth film layers are white; The first additional film (153), the second additional film (154), the third additional film (152) and the fourth additional film (151) are black.

6. A method (400) for determining the orientation of a flat panel detector, characterized in that, include: Obtain the detection result of the object detection sensor arranged on the inner wall of the film box for the flat panel detector, wherein the flat panel detector is arranged in the film box and the flat panel detector includes a first area adapted to be detected by the object detection sensor and a second area adapted to not be detected by the object detection sensor (401). The object detection sensor is arranged on the inner wall of the cassette, and the first region and the second region are arranged on the side wall of the flat panel detector. Based on the correspondence between the preset arrangement direction of the flat panel detector in the chip box and the preset detection result of the object detection sensor for the flat panel detector, and the detection result, the arrangement direction of the flat panel detector in the chip box is determined (402).

7. The method (400) for determining the orientation of a flat panel detector according to claim 6, characterized in that, The acquisition of the detection results of the object detection sensor arranged on the inner wall of the chip box for the flat panel detector includes: The detection result is acquired from the object detection sensor via wired communication; or The detection result is obtained from the object detection sensor via wireless communication.

8. The method (400) for determining the orientation of a flat panel detector according to claim 6, characterized in that, The object detection sensor includes a first photoelectric sensor and a second photoelectric sensor, which are arranged on the same inner wall of the cassette. The first region includes: a first film layer disposed on the first sidewall of the flat panel detector; a second film layer disposed on the second sidewall of the flat panel detector; a third film layer disposed on the third sidewall of the flat panel detector; and a fourth film layer disposed on the fourth sidewall of the flat panel detector. The second region includes: a first additional film and a second additional film, respectively disposed on the first film layer; a third additional film, disposed on the second film layer; and a fourth additional film, disposed on the third film layer. When the first sidewall is close to the first photoelectric sensor and the second photoelectric sensor, the first additional film is within the detection range of the first photoelectric sensor, and the second additional film is within the detection range of the second photoelectric sensor; when the second sidewall is close to the first photoelectric sensor and the second photoelectric sensor, the third additional film is within the detection range of the second photoelectric sensor; when the third sidewall is close to the first photoelectric sensor and the second photoelectric sensor, the fourth additional film is within the detection range of the first photoelectric sensor. The first, second, third, and fourth film layers contain material components adapted to be detected by the first and second photoelectric sensors, or the first, second, third, and fourth film layers have colors adapted to be detected by the first and second photoelectric sensors; the first, second, third, and fourth additional films contain material components adapted to be undetected by the first and second photoelectric sensors, or the first, second, third, and fourth additional films have colors adapted to be undetected by the first and second photoelectric sensors.

9. A device (500) for determining the orientation of a flat panel detector, characterized in that, include: The acquisition module (501) is used to acquire the detection results of the object detection sensor arranged on the inner wall of the chip box for the flat panel detector, wherein the flat panel detector is arranged in the chip box and the flat panel detector includes a first area adapted to be detected by the object detection sensor and a second area adapted to not be detected by the object detection sensor. The object detection sensor is arranged on the inner wall of the cassette, and the first region and the second region are arranged on the side wall of the flat panel detector. The determining module (502) is used to determine the arrangement direction of the flat panel detector in the film box based on the correspondence between the preset arrangement direction of the flat panel detector in the film box and the preset detection result of the object detection sensor for the flat panel detector, as well as the detection result.

10. The apparatus (500) for determining the direction of a flat panel detector according to claim 9, characterized in that, The acquisition module (501) is used to acquire the detection result from the object detection sensor via wired communication or via wireless communication.

11. A control host (600) for an X-ray imaging system, characterized in that, Includes a processor (601) and a memory (602); The memory (602) stores an application program that can be executed by the processor (601) to cause the processor (601) to perform the method (400) for determining the orientation of the flat panel detector as described in any one of claims 6 to 8.

12. A computer-readable storage medium, characterized in that, It contains computer-readable instructions for performing the method (400) for determining the orientation of a flat panel detector as described in any one of claims 6 to 8.

Images