X-ray imaging device adaptive to radiation dose adjustment

Abstract

The invention relates to the field of X-ray imaging, in particular to an X-ray imaging device with a self-adaptive radiation dose adjustment function. According to the technical scheme, the device comprises a self-adaptive radiation part, a first stand column and a second stand column, the first stand column and the second stand column are parallel to each other, the side portion of the first stand column is slidably connected with an X-ray emitting end, and the side portion of the second stand column is slidably connected with an X-ray receiving end; the self-adaptive radiation part comprises a bottom plate, a standing plate on which a patient stands is connected to the middle of the bottom plate in an up-down sliding mode, a supporting spring is elastically connected between the bottom of the standing plate and the bottom plate, and a manual hydraulic oil pump fixed in the bottom plate is fixedly installed at the center of the bottom of the standing plate; the end part of the manual hydraulic oil pump is communicated with a hydraulic push rod through a hydraulic pipe, and the end part of the hydraulic push rod is arranged in a movable diaphragm which slides back and forth in the X-ray transmitting end. Whether a patient is an adult or a teenager can be distinguished, the downward pressing displacement amount of the hydraulic oil pump is adjusted in a self-adaptive mode, and the influence of over-high-dose X-rays on the body is avoided.

Description

Technical Field

[0001] The present invention relates to the field of X-ray imaging, and particularly to an X-ray imaging device with adaptive radiation dose adjustment. Background Art

[0002] An X-ray imaging device is a device that uses X-rays to penetrate an object and forms an image based on the different absorption degrees of different substances for X-rays. X-rays have characteristics such as penetrability, fluorescence effect, and photosensitive effect. When X-rays pass through the human body or an object, due to the different densities and thicknesses of different tissues or substances, the absorption and attenuation degrees of X-rays are also different. Parts with high density and large thickness absorb more X-rays and transmit less; parts with low density and small thickness are the opposite. Through certain detection and conversion devices, this information is converted into a visible image.

[0003] In the patent document with the publication number CN118593924A, a low-energy X-ray treatment head is proposed. By integrally setting a multi-mode filtration component, a beam limiter component, a rotating bayonet flange component, and a laser indication component, it can not only enrich the function types of the treatment head, but also more accurately and quickly lock the treatment area, more flexibly and efficiently adjust the treatment dose, and is also beneficial to the automation and intelligence of process control.

[0004] The X-ray imaging device adjusts the radiation dose by the intensity of the X-rays emitted after irradiating the body. However, teenagers are still in the development stage, and the irradiated X-rays will affect their development. Moreover, the bones and muscles of teenagers who often exercise are dense and close to those of adults. The X-ray imaging device adjusting the radiation dose by the intensity of the X-rays emitted after irradiating the body cannot be targeted at teenagers and has limitations. Summary of the Invention

[0005] The purpose of the present invention is to propose an X-ray imaging device with adaptive radiation dose adjustment for the problem that the X-ray imaging device adjusting the radiation dose by the intensity of the X-rays emitted after irradiating the body has limitations for teenagers in the background art.

[0006] The technical solution of the present invention: An X-ray imaging device with adaptive radiation dose adjustment includes a first column and a second column that are parallel to each other. An X-ray emission end is slidably connected to the side of the first column, and an X-ray reception end is slidably connected to the side of the second column;

[0007] Adaptive radiator, including a bottom plate, a standing plate for standing patients is slidably connected up and down in the middle of the bottom plate, a support spring is elastically connected between the bottom of the standing plate and the bottom plate, a manual hydraulic oil pump fixed inside the bottom plate is fixedly installed at the center of the bottom of the standing plate, the end of the manual hydraulic oil pump is communicated with a hydraulic push rod through a hydraulic pipe, the end of the hydraulic push rod is provided with a movable diaphragm that slides back and forth inside the X-ray emission end, and an X-ray tube fixedly installed inside the X-ray emission end is provided on the extension line of the end of the movable diaphragm;

[0008] Inside the X-ray emission end and above the movable diaphragm, an area adjustment member is provided, and an irradiation position assembly for adjusting the voltage and current of the X-ray tube is provided inside the first column.

[0009] Optionally, the movable diaphragm, the X-ray tube, the X-ray emission end and the X-ray receiving end are located on the same straight line, the bottom plate is located between the X-ray emission end and the X-ray receiving end, and X-rays are emitted from the X-ray tube.

[0010] Optionally, a slider is fixedly installed at the bottom of the movable diaphragm, the side of the slider is fixedly connected with the hydraulic push rod, and the end of the hydraulic push rod is fixedly connected with the X-ray emission end.

[0011] Optionally, a guiding telescopic rod is fixedly installed between the bottom of the standing plate and the bottom plate, the guiding telescopic rod passes through the center of the support spring, and four support springs are provided, respectively located at the bottom of the standing plate and near the corner positions.

[0012] Optionally, the hydraulic push rod adopts a multi-section hydraulic push rod. When the support spring is fully contracted, the manual hydraulic oil pump is compressed to the limit position.

[0013] Optionally, the area adjustment member includes a fixed plate, the fixed plate is fixedly installed inside the X-ray emission end, an upper plate is fixedly installed on the top of the fixed plate, a curved chute is provided in the middle of the upper plate, a dial rod is rotatably connected to the top of the movable diaphragm, a flower ball is fixedly installed on the top of the dial rod, and the flower ball slides inside the upper plate.

[0014] Optionally, a slideway is provided on the top of the fixed plate, the slider slides in the slideway, a dial rod is fixedly installed on the top of the fixed plate, the movable diaphragm slides back and forth along the dial rod, and a fixed diaphragm is fixedly installed at one end of the guiding column.

[0015] Optionally, the curved chute adopts a curved structure, and the farther the curved chute is from the X-ray tube, the smaller the curvature of the curved chute.

[0016] Optionally, the irradiation position assembly includes height blocks. Height blocks slidably connected to the first column are fixedly installed on both sides of the X-ray emission end. A belt is fixedly installed on the side of the height block. Two pulleys are rotatably connected inside the first column. The belt is sleeved on the two pulleys. A motor is fixedly installed inside the first column. The center of one of the pulleys is fixedly connected to the drive shaft of the motor.

[0017] Optionally, a first gear is fixedly installed at the center of the pulley. A second gear rotatably connected to the first column is meshed below the first gear. An adjustment knob is fixedly installed on the side of the second gear.

[0018] Compared with the prior art, the present invention has the following beneficial technical effects:

[0019] In the present invention, for teenagers with high muscle density due to long-term exercise, it will affect the intensity of the automatic adjustment of the radiation dose of the X-ray imaging device. By having the patient stand on the standing board, the supporting spring is used to test the patient's weight, so as to distinguish whether the patient is an adult or a teenager. The weight of teenagers is light, the displacement formed by pressing down the manual hydraulic oil pump is small, then the distance that the hydraulic push rod extends is short, and the movable diaphragm is farther away from the X-ray tube, then the X-ray radiation dose is lower, avoiding that excessive dose of X-rays will affect their growth and development.

[0020] Furthermore, when adjusting the position of the movable diaphragm, the flower ball slides along the curved chute, which causes the lever to deflect, so as to adjust the opening size of the movable diaphragm. By using the change of the curvature of the curved chute, the opening area of the movable diaphragm changes less as it is farther away from the X-ray tube, so as to adapt to the change in the distance between the X-ray tube and the movable diaphragm, maintain the radiation area unchanged, and avoid irradiating non-examination positions.

[0021] Even further, according to the height of the X-ray emission end, it is judged that the radiation is for the legs. During the process of the pulley rotating and lowering the X-ray emission end, the pulley drives the first gear and the second gear to move, thereby changing the angle of the adjustment knob to change the radiation dose of the X-ray imaging emitted by the X-ray tube, and applying different doses of radiation to the chest and legs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The overall structural schematic diagram of the present invention is given;

[0023] Figure 2 The semi-sectional schematic diagram of the X-ray emission end structure of the present invention is given;

[0024] Figure 3 The structural schematic diagram of the movable diaphragm of the present invention is given;

[0025] Figure 4 For Figure 3Schematic enlarged view of the hydraulic push rod structure of part A;

[0026] Figure 5 Schematic diagram of the manual hydraulic oil pump structure;

[0027] Figure 6 Top view schematic diagram of the upper plate structure;

[0028] Figure 7 Schematic semi-sectional view of the first column structure.

[0029] Reference numerals: 1, first column; 2, second column; 3, X-ray emission end; 4, X-ray receiving end; 5, adaptive radiation member; 51, bottom plate; 52, standing plate; 53, support spring; 54, guiding telescopic rod; 55, manual hydraulic oil pump; 56, hydraulic push rod; 57, slider; 58, movable diaphragm; 59, X-ray tube; 6, area adjustment member; 61, fixing plate; 62, guiding column; 63, lever; 64, flower ball; 65, upper plate; 66, curved chute; 67, fixed diaphragm; 7, irradiation position assembly; 71, height block; 72, belt; 73, pulley; 74, first gear; 75, second gear; 76, adjusting knob. Detailed implementation manners

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention.

[0031] Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0032] Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral 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, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] Embodiment 1

[0036] This embodiment provides an X-ray imaging device with adaptive radiation dose adjustment, as Figure 1 shown, which includes a first column 1 and a second column 2 that are parallel to each other. An X-ray emitting end 3 is slidably connected to the side of the first column 1, and an X-ray receiving end 4 is slidably connected to the side of the second column 2.

[0037] As Figure 2 and Figure 5 shown, an adaptive radiation member 5 is provided inside the X-ray emitting end 3. The adaptive radiation member 5 includes a bottom plate 51. A standing plate 52 for a standing patient is slidably connected up and down in the middle of the bottom plate 51. An elastic support spring 53 is connected between the bottom of the standing plate 52 and the bottom plate 51. Four support springs 53 are provided, which are respectively located at the bottom of the standing plate 52 and near the corner positions. A manual hydraulic oil pump 55 fixed inside the bottom plate 51 is fixedly installed at the center of the bottom of the standing plate 52. A guiding telescopic rod 54 is fixedly installed between the bottom of the standing plate 52 and the bottom plate 51, and the guiding telescopic rod 54 passes through the center of the support spring 53.

[0038] When a patient stands on the standing plate 52, the patient is supported by the elastic force of the support spring 53. When the patient's weight is too large, the manual hydraulic oil pump 55 is compressed to the limit position, and when the patient's weight is light, the manual hydraulic oil pump 55 only moves a small displacement, and the weight is used to distinguish whether it is a teenager or an adult undergoing X-ray imaging. The guiding telescopic rod 54 guides the moving direction of the standing plate 52 to prevent the standing plate 52 from tilting.

[0039] As Figure 3 and Figure 4 shown, the end of the manual hydraulic oil pump 55 is connected to a hydraulic push rod 56 through a hydraulic pipe. The end of the hydraulic push rod 56 is provided with a movable diaphragm 58 that slides back and forth inside the X-ray emitting end 3. An X-ray tube 59 fixedly installed inside the X-ray emitting end 3 is provided on the extension line of the end of the movable diaphragm 58. A slider 57 is fixedly installed at the bottom of the movable diaphragm 58. The side of the slider 57 is fixedly connected to the hydraulic push rod 56, and the end of the hydraulic push rod 56 is fixedly connected to the X-ray emitting end 3.

[0040] An X-ray tube 59 emits X-rays. The X-rays are emitted from the X-ray emission end 3 and pass through the patient to irradiate on the X-ray receiving end 4. Since the X-ray imaging device can adjust the radiation dose according to the intensity of the X-rays emitted after irradiating the body and adjust the X-ray intensity using the density of muscles, the excessive radiation dose can be avoided. For teenagers who exercise regularly, their muscle density is high, which will affect the intensity of the automatic adjustment of the radiation dose by the X-ray imaging device. However, teenagers are in the growth period and are relatively sensitive to X-rays. Excessive doses of X-rays will affect their growth and development.

[0041] By sliding the movable diaphragm 58 to change the distance between it and the X-ray tube 59, the radiation intensity of the X-rays can be changed. When the patient is a teenager, the patient is light in weight, and the pressure exerted on the standing plate 52 can only cause a small displacement of the manual hydraulic oil pump 55. When the patient is an adult, the patient is heavy in weight, and the pressure exerted on the standing plate 52 causes the manual hydraulic oil pump 55 to displace more. The more the manual hydraulic oil pump 55 is compressed, the longer the hydraulic push rod 56 extends, and the closer the movable diaphragm 58 is to the X-ray tube 59, the higher the X-ray radiation dose.

[0042] In this embodiment, for teenagers who exercise regularly, their muscle density is high, which will affect the intensity of the automatic adjustment of the radiation dose by the X-ray imaging device. By having the patient stand on the standing plate 52, the support spring 53 tests the patient's weight to distinguish whether the patient is an adult or a teenager. The teenager is light in weight, and the displacement formed by pressing down the manual hydraulic oil pump 55 is small. Then the hydraulic push rod 56 extends a short distance, and the movable diaphragm 58 is farther away from the X-ray tube 59, so the X-ray radiation dose is lower, avoiding the excessive dose of X-rays from affecting their growth and development.

[0043] Embodiment 2

[0044] Based on Embodiment 1, this embodiment proposes an X-ray imaging device with adaptive radiation dose adjustment, as Figure 3 and Figure 4 shown. Inside the X-ray emission end 3 and above the movable diaphragm 58, an area adjustment member 6 is provided. The area adjustment member 6 includes a fixed plate 61. The fixed plate 61 is fixedly installed inside the X-ray emission end 3. The top of the fixed plate 61 is fixedly installed with an upper plate 65. A curve chute 66 is opened in the middle of the upper plate 65. The top of the movable diaphragm 58 is rotatably connected with a lever 63. The top of the lever 63 is fixedly installed with a flower ball 64, and the flower ball 64 slides inside the upper plate 65.

[0045] By toggling the lever 63 and the flower ball 64 to change the opening size of the movable diaphragm 58, the shape of the X-ray can be changed, affecting the X-ray imaging area. When adjusting the position of the movable diaphragm 58, the flower ball 64 slides along the curved chute 66, causing the lever 63 to deflect, so as to adjust the opening size of the movable diaphragm 58. The distance between the X-ray tube 59 and the movable diaphragm 58 affects the X-ray radiation area, and the opening size of the movable diaphragm 58 also affects the X-ray radiation area. Therefore, when changing the radiation intensity by adjusting the distance between the X-ray tube 59 and the movable diaphragm 58, the opening size of the movable diaphragm 58 is adjusted to keep the radiation area unchanged.

[0046] As Figure 6 shown, a slideway is opened at the top of the fixing plate 61, the slider 57 slides in the slideway, the lever 63 is fixedly installed at the top of the fixing plate 61, the movable diaphragm 58 slides back and forth along the lever 63, one end of the guiding column 62 is fixedly installed with a fixed diaphragm 67, the curved chute 66 adopts a curved structure, the farther the curved chute 66 is from the X-ray tube 59, the smaller the curvature of the curved chute 66. Since the distance between the X-ray tube 59 and the movable diaphragm 58 is larger, within the same length of displacement, the change rate of the radiation area size increases. Therefore, by changing the curvature of the curved chute 66, the change speed of the opening size of the movable diaphragm 58 becomes smaller and smaller to adapt to the change of the radiation area caused by the change of the distance between the X-ray tube 59 and the movable diaphragm 58.

[0047] In this embodiment, when adjusting the position of the movable diaphragm 58, the flower ball 64 slides along the curved chute 66, causing the lever 63 to deflect, so as to adjust the opening size of the movable diaphragm 58, and by using the curvature change of the curved chute 66, the farther the movable diaphragm 58 is from the X-ray tube 59, the smaller the change of its opening area, so as to adapt to the change of the distance between the X-ray tube 59 and the movable diaphragm 58, so as to maintain the radiation area unchanged and avoid irradiating non-examination positions.

[0048] Embodiment 3

[0049] Based on the above Embodiment 1 or Embodiment 2, this embodiment proposes an X-ray imaging device for adaptive radiation dose adjustment, as Figure 7 shown, an irradiation position assembly 7 for adjusting the voltage and current of the X-ray tube 59 is arranged inside the first column 1. The irradiation position assembly 7 includes a height block 71. The height blocks 71 slidably connected to the first column 1 are fixedly installed on both sides of the X-ray emission end 3. A belt 72 is fixedly installed on the side of the height block 71. Two pulleys 73 are rotatably connected inside the first column 1. The belt 72 is sleeved on the two pulleys 73. A motor is fixedly installed inside the first column 1. The center of one of the pulleys 73 is fixedly connected to the drive shaft of the motor.

[0050] The pulley 73 is rotated by a motor, so that the belt 72 moves to drive the height block 71, thereby adjusting the height of the X-ray emission end 3. When the radiation height of the X-ray is too low, it indicates that the X-ray imaging position is the leg.

[0051] A first gear 74 is fixedly installed at the center of the pulley 73. A second gear 75 that is rotatably connected to the first column 1 is meshed and connected below the first gear 74. An adjustment knob 76 is fixedly installed on the side of the second gear 75. When the pulley 73 rotates to move the height block 71 and the X-ray emission end 3 below, the first gear 74 is driven to rotate during the rotation of the pulley 73, and the cooperation between the first gear 74 and the second gear 75 changes the gear position of the adjustment knob 76.

[0052] In this embodiment, according to the height of the X-ray emission end 3, it is determined that the radiation is for the leg. During the process of the pulley 73 rotating and lowering the X-ray emission end 3, the pulley 73 drives the first gear 74 and the second gear 75 to move, thereby changing the angle of the adjustment knob 76 to change the radiation dose of the X-ray imaging emitted by the X-ray tube 59, and applying different doses of radiation to the chest and the leg.

[0053] The above specific embodiments are only several alternative embodiments of the present invention. Based on the technical solution of the present invention and the relevant revelations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. An X-ray imaging device with adaptive radiation dose adjustment, comprising a first upright column (1) and a second upright column (2) that are parallel to each other. A side portion of the first upright column (1) is slidably connected to an X-ray emitting end (3), and it is characterized in that: An adaptive radiation member (5), comprising a bottom plate (51). A standing plate (52) for a standing patient is slidably connected up and down in the middle of the bottom plate (51). A support spring (53) is elastically connected between the bottom of the standing plate (52) and the bottom plate (51). A manual hydraulic oil pump (55) fixed inside the bottom plate (51) is fixedly installed at the center of the bottom of the standing plate (52). The end of the manual hydraulic oil pump (55) is communicated with a hydraulic push rod (56) through a hydraulic pipe. The end of the hydraulic push rod (56) is provided with a movable diaphragm (58) that slides back and forth inside the X-ray emitting end (3). An X-ray tube (59) fixedly installed inside the X-ray emitting end (3) is provided on the extension line of the end of the movable diaphragm (58); An area adjustment member (6) is provided inside the X-ray emitting end (3) and above the movable diaphragm (58). An irradiation position assembly (7) for adjusting the voltage and current of the X-ray tube (59) is provided inside the first upright column (1).

2. The X-ray imaging device with adaptive radiation dose adjustment according to claim 1, characterized in that: An X-ray receiving end (4) is slidably connected to a side portion of the second upright column (2). The movable diaphragm (58), the X-ray tube (59), the X-ray emitting end (3), and the X-ray receiving end (4) are located on the same straight line. The bottom plate (51) is located between the X-ray emitting end (3) and the X-ray receiving end (4). X-rays are emitted from the X-ray tube (59).

3. The X-ray imaging device with adaptive radiation dose adjustment according to claim 1, wherein: A slider (57) is fixedly installed at the bottom of the movable diaphragm (58). The side portion of the slider (57) is fixedly connected to the hydraulic push rod (56). The end of the hydraulic push rod (56) is fixedly connected to the X-ray emitting end (3).

4. The X-ray imaging device with adaptive radiation dose adjustment according to claim 3, wherein: A guiding telescopic rod (54) is fixedly installed between the bottom of the standing plate (52) and the bottom plate (51). The guiding telescopic rod (54) passes through the center of the support spring (53). Four support springs (53) are provided, respectively located at the bottom of the standing plate (52) and near the corner positions.

5. The X-ray imaging device with adaptive radiation dose adjustment according to claim 4, wherein: The hydraulic push rod (56) adopts a multi-section hydraulic push rod. When the support spring (53) is fully contracted, the manual hydraulic oil pump (55) is compressed to the limit position.

6. The X-ray imaging device with adaptive radiation dose adjustment according to claim 3, characterized in that: The area adjustment member (6) comprises a fixing plate (61). The fixing plate (61) is fixedly installed inside the X-ray emitting end (3). An upper plate (65) is fixedly installed on the top of the fixing plate (61). A curved sliding groove (66) is provided in the middle of the upper plate (65). A dial rod (63) is rotatably connected to the top of the movable diaphragm (58). A flower ball (64) is fixedly installed on the top of the dial rod (63). The flower ball (64) slides inside the upper plate (65).

7. The X-ray imaging device with adaptive radiation dose adjustment according to claim 6, characterized in that: A slideway is formed at the top of the fixed plate (61), the slider (57) slides in the slideway, a lever (63) is fixedly installed at the top of the fixed plate (61), the movable diaphragm (58) slides back and forth along the lever (63), and a fixed diaphragm (67) is fixedly installed at one end of the guiding column (62).

8. The X-ray imaging device with adaptive radiation dose adjustment according to claim 7, wherein: The curve chute (66) is of a curved structure, and the curvature of the curve chute (66) becomes smaller as it is farther away from the X-ray tube (59).

9. The X-ray imaging device with adaptive radiation dose adjustment according to claim 1, characterized in that: The irradiation position assembly (7) includes height blocks (71). Height blocks (71) which are slidably connected to the first column (1) are fixedly installed on both sides of the X-ray emission end (3). A belt (72) is fixedly installed on the side of the height block (71). Two pulleys (73) are rotatably connected inside the first column (1). The belt (72) is sleeved on the two pulleys (73). A motor is fixedly installed inside the first column (1), and the center of one of the pulleys (73) is fixedly connected to the drive shaft of the motor.

10. The X-ray imaging device with adaptive radiation dose adjustment according to claim 9, characterized in that: A first gear (74) is fixedly installed at the center of the pulley (73). A second gear (75) which is rotatably connected to the first column (1) is meshed below the first gear (74), and an adjustment knob (76) is fixedly installed on the side of the second gear (75).

Images