Translation device and medical equipment

Abstract

The utility model belongs to the technical field of medical equipment, and particularly relates to a translation device and medical equipment. The first movable part is movably connected with the rack in the first direction; the second movable part is movably connected with the first movable part along a second direction, and the first direction is not parallel to the second direction; the first driving assembly is mounted on the rack and used for driving the first movable part to translate in the first direction; the second driving assembly comprises a driving element, a fixed wheel, a movable wheel and an annular strip; at least one section of strip parallel to the second direction exists between the movable wheels and serves as a traction section, and the second movable part is connected with the traction section. According to the utility model, the driving elements in two directions are arranged on the rack, and only the functional part and the belt wheel are arranged on the movable part, so that the space of the rack is fully utilized, the structural compactness of the movable part is improved, and the miniaturization requirement of medical equipment is met.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and particularly relates to a translation device and medical equipment. Background Art

[0002] In some medical devices, it's sometimes necessary to drive a functional component to perform translational motion within a plane. For example, in mobile X-ray imaging equipment, the beam splitter, which serves as the X-ray light source adjustment component, includes a shielding layer with a small hole through which the X-rays pass. A structure is needed to drive the hole to any position within the imaging area. This not only shields excess X-rays but also allows for flexible adjustment of the field of view of the area of ​​interest, reducing radiation dose and focusing the area of ​​interest. However, the existing drive structures are complex and space-consuming, failing to meet the requirements for miniaturization and compactness of mobile X-ray imaging equipment. Utility Model Content

[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a translation device and medical equipment with a compact structure.

[0004] To achieve the above-mentioned and other related purposes, the present invention provides a translation device, comprising:

[0005] frame;

[0006] a first movable portion, movably connected to the frame along a first direction;

[0007] a second movable portion movably connected to the first movable portion along a second direction, wherein the first direction and the second direction are arranged non-parallel;

[0008] a first driving assembly, mounted on the frame, for driving the first movable portion to translate along the first direction;

[0009] A second drive assembly includes a drive element, a fixed wheel, a movable wheel, and an endless belt;

[0010] At least two of the fixed wheels are rotatably mounted on the frame, the driving element is mounted on the frame, and at least one of the fixed wheels is in transmission connection with the driving element; a plurality of movable wheels are rotatably mounted on the first movable portion, the belt is wound around each of the fixed wheels and each of the movable wheels, and each of the fixed wheels and each of the movable wheels is assembled so that when the first movable portion moves along the first direction, each of the fixed wheels and each of the movable wheels can keep the belt in a tensioned state;

[0011] There is at least one strip parallel to the second direction between each of the movable wheels as a traction segment, and the second movable part is connected to the traction segment.

[0012] In an optional embodiment of the present invention, each of the movable wheels includes a first movable wheel and a second movable wheel, the belt passes between the first movable wheel and the second movable wheel, and contacts the first movable wheel and the second movable wheel respectively, and the layout trajectory of the belt is divided into a first half circle and a second half circle with the center line of the first movable wheel and the second movable wheel as the boundary, wherein the first half circle is wound around each of the fixed wheels, and the second half circle is wound around each of the movable wheels.

[0013] In an optional embodiment of the present invention, each of the fixed wheels includes a first fixed wheel adjacent to the first movable wheel, and a second fixed wheel adjacent to the second movable wheel, the strip between the first movable wheel and the first fixed wheel is parallel to the first direction, and the strip between the second movable wheel and the second fixed wheel is parallel to the first direction.

[0014] In an optional embodiment of the present invention, a common tangent line of a side of the first fixed wheel and the second fixed wheel close to the first movable wheel and the second movable wheel is parallel to the first direction.

[0015] In an optional embodiment of the present invention, each of the movable wheels further includes a third movable wheel and a fourth movable wheel, and the traction section is located between the third movable wheel and the fourth movable wheel.

[0016] In an optional embodiment of the present invention, each of the movable wheels also includes at least one fifth movable wheel, and the fifth movable wheel is at least arranged between one of the third movable wheel and the fourth movable wheel and one of the first movable wheel and the second movable wheel. The fifth movable wheel is used to limit the layout path of the strip between one of the third movable wheel and the fourth movable wheel and one of the first movable wheel and the second movable wheel, so that the layout path avoids a preset functional area.

[0017] In an optional embodiment of the present invention, the frame is provided with a first detection unit for detecting the position of the first movable part or the second movable part in the first direction, and / or a second detection unit for detecting the position of the second movable part in the second direction.

[0018] In an optional embodiment of the present invention, the first drive assembly includes a first motor and a pulley mechanism, the pulley mechanism includes a first drive wheel that is transmission-connected to the first motor; the drive element includes a second motor, one of the fixed wheels serves as a second drive wheel that is transmission-connected to the second motor, and the diameters of the first drive wheel and the second drive wheel are equal.

[0019] In an optional embodiment of the present invention, at least one of the frame, the first movable part, and the second movable part is made of sheet metal material.

[0020] To achieve the above-mentioned and other related purposes, the present invention further provides a medical device, comprising the above-mentioned translation device; and

[0021] A shielding layer is configured to shield X-rays, the shielding layer is provided with a transmission area for X-rays to pass through, and the shielding layer is fixedly connected to the second movable part.

[0022] In an optional embodiment of the present invention, the shielding layer includes a tungsten film.

[0023] The technical effect of the utility model is that the driving elements in two directions are arranged on the frame, and only functional components and pulleys are arranged on the movable parts, so that the frame space is fully utilized, the compactness of the structure of the movable parts is improved, and the miniaturization requirements of medical equipment are met. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a simplified structural diagram of the medical device provided by an embodiment of the present utility model;

[0025] Figure 2 This is a front view of the medical device provided by an embodiment of the present utility model;

[0026] Figure 3 It is a schematic diagram of a second drive assembly provided by another alternative embodiment of the present utility model. DETAILED DESCRIPTION

[0027] The following describes the embodiments of the present invention through specific examples. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different perspectives and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features within these embodiments may be combined with one another, unless they conflict.

[0028] It should be noted that the illustrations provided in the following embodiments are merely schematic illustrations of the basic concept of the present invention. Therefore, the illustrations only show components related to the present invention and are not drawn according to the number, shape, and size of components in actual implementation. In actual implementation, the type, quantity, and proportion of each component may be changed at will, and the component layout may also be more complex.

[0029] The translation device provided by the present invention is suitable for driving components in medical equipment that require translational movement in any direction along a plane. The structure and principles of the translation device will be described in detail below, combined with its application in mobile X-ray imaging equipment. It should be understood that the application scenarios of the translation device of the present invention are not limited to mobile X-ray imaging equipment, and its application scenarios may also include, but are not limited to, CT scanners, MRI equipment, ultrasonic equipment, etc.

[0030] In mobile X-ray imaging equipment, the beam splitter, which serves as an X-ray light source adjustment component, includes a shielding layer. The shielding layer is provided with a small hole for X-rays to pass through. A structure is required that can drive the small hole to move to any position within the imaging area. On the one hand, it can shield excess X-rays, and on the other hand, it can flexibly adjust the field of view position of the area of ​​interest, which not only reduces the radiation dose but also can focus on the area of ​​interest of the doctor. However, the above-mentioned driving structure in the prior art is relatively complex and occupies a large space, which cannot meet the requirements of miniaturization and compactness of mobile X-ray imaging equipment. To this end, the present invention arranges the driving elements in both directions on the frame, and only arranges functional components and pulleys on the movable parts, so that the frame space is fully utilized, the compactness of the movable parts is improved, and the miniaturization requirements of medical equipment are met.

[0031] See also Figure 1 、 2 As shown, the mobile X-ray imaging device provided by the embodiment of the present invention includes a translation device and a shielding layer 31.

[0032] See also Figure 1 、 2As shown, the translation device includes a frame 10, a first movable part 20, a second movable part 30, a first drive assembly and a second drive assembly; the first movable part 20 is movably connected to the frame 10 along a first direction X; the second movable part 30 is movably connected to the first movable part 20 along a second direction Y, and the first direction X and the second direction Y are not parallel; the first drive assembly is installed on the frame 10, and is used to drive the first movable part 20 to translate along the first direction X; the second drive assembly includes a drive element, a fixed wheel, a movable wheel and an annular strip 53; at least two of the fixed wheels are rotatably installed on the frame 10, The driving element is installed on the frame 10, and at least one of the fixed wheels is transmission-connected to the driving element; multiple movable wheels are rotatably installed on the first movable part 20, and the belt 53 is wound around each of the fixed wheels and each of the movable wheels, and each of the fixed wheels and each of the movable wheels are assembled so that when the first movable part 20 moves along the first direction X, each of the fixed wheels and each of the movable wheels can keep the belt 53 in a tensioned state; there is at least one section of the belt 53 parallel to the second direction Y between each of the movable wheels as a traction section 531, and the second movable part 30 is connected to the traction section 531.

[0033] It should be understood that the present invention arranges driving elements in two directions on the frame 10, fully utilizing the installation space of the frame 10 and reducing the load on the moving parts. On the one hand, it makes the structure of the moving parts more compact, and on the other hand, it also saves equipment energy consumption.

[0034] The shielding layer 31 is configured to shield X-rays. It includes a transmissive region 31 through which X-rays pass. The shielding layer 31 is fixedly connected to the second movable portion 30, enabling translation of the shielding layer 31 in a first direction X and a second direction Y. In a preferred embodiment, the first direction X and the second direction Y are perpendicular to each other. This facilitates calculation of the specific coordinate position of the transmissive region 31 and improves control efficiency. It should be understood that in other embodiments, the first direction X and the second direction Y may be at other angles. As long as they are not parallel, the transmissive region 31 can theoretically be moved in any direction within a plane. In an optional embodiment of the present invention, the shielding layer 31 comprises a tungsten film. Using a tungsten film as the X-ray shielding layer 31 offers several advantages over lead: Tungsten is more environmentally friendly than lead. While lead can have adverse environmental and health effects during use and disposal, such as the risk of lead poisoning, tungsten's improved environmental profile reduces these risks. Tungsten's high mechanical strength and hardness make the tungsten film more wear-resistant and structurally more stable during use. Although tungsten is less dense than lead, its high melting point and strength allow tungsten films to be designed to be thinner, thereby reducing overall weight and volume while maintaining the same shielding effectiveness. Although tungsten is generally more expensive than lead, the durability and high performance of tungsten films may save costs in the long term.

[0035] See also Figure 1 、 2 As shown, in an optional embodiment of the present invention, each of the movable wheels includes a first movable wheel 521 and a second movable wheel 522, and the strip 53 passes between the first movable wheel 521 and the second movable wheel 522, and contacts the first movable wheel 521 and the second movable wheel 522 respectively. The layout trajectory of the strip 53 is divided into a first half circle and a second half circle with the center line of the first movable wheel 521 and the second movable wheel 522 as the boundary, wherein the first half circle is wound around each of the fixed wheels, and the second half circle is wound around each of the movable wheels.

[0036] In a specific embodiment, the strip 53 can be, for example, a synchronous belt that can meet higher motion precision requirements. It should be understood that in other embodiments, when the motion precision requirements are not high, the strip 53 can also be a chain or an ordinary belt.

[0037] The trajectory of the belt 53 is divided into two independent functional areas by the first movable wheel 521 and the second movable wheel 522. The first half of the circle is primarily responsible for obtaining power from the fixed wheel, while the second half of the circle is responsible for guiding the direction of movement and outputting power. This ensures that power is transmitted from the frame 10 to the second movable part 30 while avoiding interference with the movement of the first movable part 20. In addition, guided by the first and second movable wheels 521, 522, the angle of the belt 53 on the other movable wheels remains constant, which improves the stability and reliability of the traction unit's power output.

[0038] See also Figure 1 、 2As shown, in an optional embodiment of the present invention, each of the fixed wheels includes a first fixed wheel 511 adjacent to the first movable wheel 521, and a second fixed wheel 512 adjacent to the second movable wheel 522. The strip 53 between the first movable wheel 521 and the first fixed wheel 511 is parallel to the first direction X, and the strip 53 between the second movable wheel 522 and the second fixed wheel 512 is parallel to the first direction X. It should be noted that the term "adjacent" in the present invention refers to the two components being adjacent along the path of the strip 53, and does not mean that the two components are spatially close to each other. It should be understood that this embodiment ensures that the length ratio of the first half circle to the second half circle of the strip 53 remains unchanged during the movement of the first movable portion 20 along the first direction X, thereby preventing the strip 53 from becoming loose or overly tight. It should be understood that this embodiment is only a preferred solution for maintaining the progress of the strip 53 in a simple manner. In some other embodiments, one of the fixed wheels can also be set to a structure that can move in the radial direction to offset the length change of the first half circle and the second half circle. For example, the second fixed wheel 512 can be set to a structure that can move in the radial direction. At this time, the strip 53 between the first movable wheel 521 and the first fixed wheel 511, and the strip 53 between the second movable wheel 522 and the second fixed wheel 512 may not be parallel to the first direction X. The change in the length of the first half circle and the second half circle caused by the movement of the first movable part can be offset by the radial displacement of the second fixed wheel 512.

[0039] See also Figure 1 、 2 As shown, in an optional embodiment of the present invention, the common tangent of the first fixed wheel 511 and the second fixed wheel 512 on the side close to the first movable wheel 521 and the second movable wheel 522 is parallel to the first direction X. This enables the first fixed wheel 511 and the second fixed wheel 512 to avoid the movement path of the first movable part 20 at the same time. It should be understood that the positional relationship between the first fixed wheel 511 and the second fixed wheel 512 is not unique. For example, Figure 3 In the illustrated embodiment, the common tangent line of the first movable wheel 521 and the second movable wheel 522 on their sides may not be parallel to the first direction X. As long as the strip 53 between the first movable wheel 521 and the first fixed wheel 511 is parallel to the first direction X, and the strip 53 between the second movable wheel 522 and the second fixed wheel 512 is parallel to the first direction X, the strip 53 can be ensured to maintain the same tension during the movement of the first movable portion 20. In practical applications, this approach can rationally utilize the installation space on the frame 10, making the structure more compact.

[0040] See also Figure 1-3 As shown, in an optional embodiment of the present invention, each of the movable wheels further includes a third movable wheel 523 and a fourth movable wheel 524 , and the traction section 531 is located between the third movable wheel 523 and the fourth movable wheel 524 .

[0041] See also Figure 1 、 2 As shown, in an optional embodiment of the present invention, each of the movable wheels further includes at least one fifth movable wheel 525, and the fifth movable wheel 525 is at least arranged between one of the third movable wheel 523 and the fourth movable wheel 524 and one of the first movable wheel 521 and the second movable wheel 522, and the fifth movable wheel 525 is used to limit the layout path of the strip 53 between one of the third movable wheel 523 and the fourth movable wheel 524 and one of the first movable wheel 521 and the second movable wheel 522, so that the layout path avoids the preset functional area. It should be understood that the fifth movable wheel 525 is mainly used to confine the strip 53 to the designed area to prevent the strip 53 from affecting the operation of the functional components. For example, Figure 1 、 2 In the illustrated embodiment, if the fifth movable wheel 525 is removed, the strip 53 will block the working area of ​​the transmission area 31. In actual applications, the number and position of the fifth movable wheels 525 can be set according to actual needs.

[0042] See also Figure 1 、 2 As shown, in an optional embodiment of the present invention, the frame 10 is provided with a first detection unit 60 for detecting the position of the first movable part 20 or the second movable part 30 in the first direction X, and / or a second detection unit 70 for detecting the position of the second movable part 30 in the second direction Y. This embodiment can calibrate the positions of the first movable part 20 and the second movable part 30, thereby improving motion control accuracy.

[0043] See also Figure 1 、 2As shown, in an optional embodiment of the present invention, the first drive assembly includes a first motor 43 and a pulley mechanism 41. The pulley mechanism 41 includes a first drive wheel 42 drivingly connected to the first motor 43. The drive element includes a second motor 54. One of the fixed wheels (such as the first fixed wheel 511) serves as a second drive wheel drivingly connected to the second motor 54. The diameters of the first drive wheel 42 and the second drive wheel are equal. It should be understood that to drive the shielding layer 31 to move in a specified direction, it is necessary to precisely control the rotational speeds of the two motors. In this embodiment, the two drive wheels are configured with equal diameters to facilitate calculation of the movement speeds in both directions during subsequent control.

[0044] See also Figure 1 、 2 As shown, in an optional embodiment of the present invention, at least one of the frame 10, the first movable portion 20, and the second movable portion 30 is made of sheet metal. Compared with castings, sheet metal is light in weight, compact in structure, and space-saving.

[0045] In summary, the utility model arranges the driving elements in two directions on the frame 10, fully utilizes the installation space of the frame 10, reduces the load on the moving parts, and makes the structure of the moving parts more compact on the one hand, and saves energy consumption of the equipment on the other hand; tungsten is more environmentally friendly than lead, and lead may have adverse effects on the environment and health during use and disposal, such as the risk of lead poisoning, while tungsten is more environmentally friendly and reduces these risks; after being guided by the first movable wheel 521 and the second movable wheel 522, the wrap angle of the strip 53 on the other movable wheels can always remain unchanged, which improves the stability and reliability of the traction part when outputting power; the utility model can ensure that the length ratio of the first half circle and the second half circle of the strip 53 remains unchanged during the movement of the first movable part 20 along the first direction X, thereby avoiding the strip 53 from becoming loose or overly tight; the fifth movable wheel 525 confines the strip 53 to the designed area to prevent the strip 53 from affecting the operation of the functional components; compared with castings, sheet metal parts are light in weight, compact in structure, and save space.

[0046] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed in the present invention are intended to be covered by the claims of the present invention.

[0047] In the description herein, many specific details, such as examples of components and / or methods, are provided to provide a complete understanding of the embodiments of the present invention. However, those skilled in the art will recognize that embodiments of the present invention can be practiced without one or more of the specific details or with other devices, systems, components, methods, components, materials, parts, etc. In other cases, well-known structures, materials, or operations are not specifically shown or described in detail to avoid obscuring aspects of the embodiments of the present invention.

Claims

1. A translation device, characterized in that: include: frame; a first movable portion, movably connected to the frame along a first direction; a second movable portion movably connected to the first movable portion along a second direction, wherein the first direction and the second direction are arranged non-parallel; a first driving assembly, mounted on the frame, for driving the first movable portion to translate along the first direction; A second drive assembly includes a drive element, a fixed wheel, a movable wheel, and an endless belt; At least two of the fixed wheels are rotatably mounted on the frame, the driving element is mounted on the frame, and at least one of the fixed wheels is in transmission connection with the driving element; a plurality of movable wheels are rotatably mounted on the first movable portion, the belt is wound around each of the fixed wheels and each of the movable wheels, and each of the fixed wheels and each of the movable wheels is assembled so that when the first movable portion moves along the first direction, each of the fixed wheels and each of the movable wheels can keep the belt in a tensioned state; There is at least one strip parallel to the second direction between each of the movable wheels as a traction segment, and the second movable part is connected to the traction segment.

2. The translation device according to claim 1, wherein: Each of the movable wheels includes a first movable wheel and a second movable wheel, the belt passes between the first movable wheel and the second movable wheel, and contacts the first movable wheel and the second movable wheel respectively, and the layout trajectory of the belt is divided into a first half circle and a second half circle with the center line of the first movable wheel and the second movable wheel as the boundary, wherein the first half circle is wound around each of the fixed wheels, and the second half circle is wound around each of the movable wheels.

3. The translation device according to claim 2, characterized in that: Each of the fixed wheels includes a first fixed wheel adjacent to the first movable wheel, and a second fixed wheel adjacent to the second movable wheel. The strip between the first movable wheel and the first fixed wheel is parallel to the first direction, and the strip between the second movable wheel and the second fixed wheel is parallel to the first direction.

4. The translation device according to claim 3, characterized in that: A common tangent line of a side of the first fixed wheel and the second fixed wheel close to the first movable wheel and the second movable wheel is parallel to the first direction.

5. The translation device according to any one of claims 2 to 4, characterized in that: Each of the movable wheels further includes a third movable wheel and a fourth movable wheel, and the traction section is located between the third movable wheel and the fourth movable wheel.

6. The translation device according to claim 5, characterized in that: Each of the movable wheels also includes at least one fifth movable wheel, which is at least arranged between one of the third movable wheel and the fourth movable wheel and one of the first movable wheel and the second movable wheel. The fifth movable wheel is used to limit the layout path of the strip between one of the third movable wheel and the fourth movable wheel and one of the first movable wheel and the second movable wheel, so that the layout path avoids a preset functional area.

7. The translation device according to claim 1, characterized in that: The frame is provided with a first detection unit for detecting the position of the first movable part or the second movable part in the first direction, and / or a second detection unit for detecting the position of the second movable part in the second direction.

8. The translation device according to claim 3, wherein: The first drive assembly includes a first motor and a pulley mechanism, the pulley mechanism includes a first drive wheel that is transmission-connected to the first motor; the drive element includes a second motor, one of the fixed wheels serves as a second drive wheel that is transmission-connected to the second motor, and the diameters of the first drive wheel and the second drive wheel are equal.

9. The translation device according to claim 1, wherein: At least one of the frame, the first movable portion, and the second movable portion is made of a sheet metal material.

10. A medical device, characterized in that: A translation device comprising the translation device according to any one of claims 1 to 9; and A shielding layer is configured to shield X-rays, the shielding layer is provided with a transmission area for X-rays to pass through, and the shielding layer is fixedly connected to the second movable part.

11. The medical device according to claim 10, characterized in that The shielding layer includes a tungsten film.

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