Mammary machine vibration grid evacuation device

Abstract

The application discloses a breast machine vibration grid evacuation device, which comprises a vertical arm, a supporting plate, a grid assembly, a vibration mechanism and an evacuation driving mechanism. The evacuation driving mechanism is installed on the supporting plate and comprises a motor, a screw rod, a driving nut, a driving base, a guide rail and a sliding block. The screw rod is horizontally installed at the lower part of the supporting plate. The driving nut is threadedly connected to the screw rod. The driving base is fixed to the driving nut. A strip-shaped accommodation slot is formed in the supporting plate. A part of the driving base passes through the strip-shaped accommodation slot and is located at the upper part of the supporting plate. The motor is fixed to the lower part of the supporting plate. The output shaft of the motor is fixedly connected to the screw rod. The guide rail is horizontally fixed to the upper part of the supporting plate. The sliding block is connected to the guide rail. The vibration mechanism is installed between the driving base and the sliding block. The grid assembly is installed on the vibration mechanism.

Description

Technical Field

[0001] This invention belongs to the field of mammary gland machine technology and relates to a vibrating grid removal device for a mammary gland machine. Background Technology

[0002] A mammography machine is an X-ray machine specifically used for the examination and diagnosis of breast lesions. It is also called a mammography target machine. The grid is a device that filters scattered X-rays. It looks like an aluminum plate. The flat panel detector is a device that receives X-rays and outputs image signals.

[0003] In clinical use, mammography machines require a grid to filter X-ray scattered radiation to improve the imaging quality of flat panel detectors. During exposure, the grid needs to move at a certain speed to achieve a good filtering effect. However, in some scenarios, the grid is not needed during imaging, such as in the tomo mode of a mammography machine. In these cases, the grid needs to be removed. Currently, most mammography machines on the market do not have an automatic grid removal function, requiring manual removal and replacement. Some mammography machines with automatic grid removal functions, due to structural limitations, cannot be adapted to multi-size flat panel detectors, nor can they adjust the grid amplitude and vibration speed.

[0004] In summary, the current vibrating grid devices for breast mammography machines have three main problems: 1. The filter grid cannot be automatically retracted. 2. The breast mammography machine cannot be adapted to multi-size flat panel detectors. 3. The amplitude and speed of the filter grid vibration cannot be adjusted. Therefore, designing a vibrating grid retraction device for breast mammography machines to solve these problems is particularly necessary. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a vibrating grid removal device for a breast machine.

[0006] To achieve the above objectives, the technical solution of the present invention is: a vibration grid removal device for a breast machine, the breast machine including a vertical arm and a support plate, the vertical arm being fixed on the support plate, a flat plate detector being fixed on the support plate, the vibration grid removal device including a filter grid assembly, a vibration mechanism, and a removal drive mechanism, the removal drive mechanism being mounted on the support plate and located near the side of the support plate, the removal drive mechanism including a motor, a lead screw, a drive nut, a drive seat, a guide rail, and a slider, the lead screw being horizontally rotatably mounted on the lower part of the support plate, the drive nut being threadedly connected to the lead screw, and the drive seat being fixed to the drive nut. The first component has a strip-shaped clearance groove on the support plate. A portion of the drive seat passes through the strip-shaped clearance groove and is located on the upper part of the support plate. The first motor is fixed to the lower part of the support plate. The output shaft of the first motor and the first lead screw are fixedly connected. The first guide rail is horizontally fixed to the upper part of the support plate. The first slider is connected to the first guide rail. The vibration mechanism is installed between the drive seat and the first slider. The filter grid assembly is installed on the vibration mechanism. The filter grid assembly includes a filter grid, and the filter grid is arranged on the front side of the vibration mechanism. Under the drive of the first motor, the filter grid can completely cover the imaging area of ​​the flat panel detector or completely withdraw from the imaging area of ​​the flat panel detector.

[0007] The vibration mechanism includes a second motor, a second lead screw, a second drive nut, a vibration platform, a fixed base, a second guide rail, and a second slider. The vibration platform is fixed between the drive base and the first slider. The second guide rail is horizontally fixed on the vibration platform and is perpendicular to the first guide rail. The second slider is connected to the second guide rail. The second motor is fixed on the vibration platform. The output shaft of the second motor is fixedly connected to the second lead screw. The second drive nut is threadedly connected to the second lead screw. The second drive nut is fixedly connected to the fixed base, and the fixed base is also fixedly connected to the second slider.

[0008] The evacuation drive mechanism is also fixed to the outer limiting plates on both sides of the pallet. An inner limiting plate is fixed to the outer limiting plate. A U-shaped guide groove is formed between the inner limiting plate and the outer limiting plate. The length of the inner limiting plate is greater than the length of the outer limiting plate. A photoelectric switch is also fixed to the end of the inner limiting plate that extends beyond the outer limiting plate.

[0009] The filter grid assembly further includes a substrate and a clamping plate. The filter grid is fixed on the substrate by the clamping plate, and the substrate is arranged on the rear side of the filter grid. One end of the substrate has a fixing ear, which is fixedly connected to a fixing seat. The fixing ear is also fixedly connected to a drive wire nut. Both sides of the filter grid are fixed with upper and lower friction strips that cooperate with the U-shaped guide groove.

[0010] The drive base is also fixed with a photoelectric trigger plate, and two photoelectric switches that cooperate with the photoelectric trigger plate are fixed at the lower part of the tray.

[0011] The vertical arm also has a receiving opening that cooperates with the filter grid assembly.

[0012] The motor is fixed to the lower part of the support plate by a motor bracket.

[0013] The lead screw is horizontally rotatably mounted on the lower part of the support plate via a mounting base.

[0014] By adopting the above technical solution, the beneficial effects of the present invention are:

[0015] 1. The present invention provides a device for automatic vibration and retraction of a filter grid of a mammary gland machine.

[0016] 2. When equipped with a vibration filter grid, flat panel detectors of different sizes can also be selected.

[0017] 3. The vibration amplitude and speed of the filter grid can be adjusted according to shooting requirements. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0020] Figure 3 This is a three-dimensional structural diagram of the removed portion of the present invention;

[0021] Figure 4 This is a three-dimensional structural diagram of the vibration mechanism in this invention;

[0022] Figure 5 This is an exploded view of the filter grid assembly in this invention;

[0023] In the figure, 10 is a support plate; 10a is a strip-shaped clearance groove; 20 is a flat panel detector; 30 is a filter grid assembly; 301 is a filter grid; 302 is upper and lower friction strips; 303 is a base plate; 303a is a fixing ear; 304 is a clamping plate; 40 is a withdrawal drive mechanism; 401 is a motor; 402 is a motor bracket; 403 is a drive nut; 404 is a drive seat; 405 is a lead screw; 406 is a cable chain; and 407 is a mounting base. ; 408. Photoelectric switch II; 409. Photoelectric switch I; 410. Photoelectric trigger plate; 411. Outer limiting plate; 412. Inner limiting plate; 413. Slider I; 414. Guide rail I; 50. Vibration mechanism; 501. Motor II; 502. Fixing base; 503. Vibration platform; 504. Drive screw nut II; 505. Slider II; 506. Guide rail II; 507. Screw II; 60. Vertical arm; 60a. Receiving port. Detailed Implementation

[0024] To further explain the technical solution of the present invention, the present invention will be described in detail below through specific embodiments.

[0025] like Figure 1-5As shown, this vibrating grid removal device for a breast cancer machine includes a vertical arm 60 and a support plate 10. In practice, the vertical arm 60 and the support plate 10 are part of the X-ray tube arm. The vertical arm 60 is fixed on the support plate 10, and a flat panel detector 20 is fixed on the support plate 10. Specifically, the vertical arm 60 also has a receiving opening 60a that cooperates with the filter grid assembly 30. With this structure, the vertical arm 60 is connected to the support plate 10, and there is space for the filter grid 301 to retract between the vertical arm 60 and the support plate 10. This can greatly shorten the length of the support plate 10 while ensuring the retraction stroke of the filter grid 301, which has a beneficial effect on the size and layout of the entire equipment. The vibrating grid removal device includes a filter grid assembly 30, a vibration mechanism 50, and a removal drive mechanism 40. The 0 is mounted on the pallet 10, and the retraction drive mechanism 40 is located near the side of the pallet 10. The retraction drive mechanism 40 includes a motor 401, a lead screw 405, a drive nut 403, a drive seat 404, a guide rail 414, and a slider 413. The lead screw 405 is horizontally rotatably mounted on the lower part of the pallet 10. Specifically, the lead screw 405 is horizontally rotatably mounted on the lower part of the pallet 10 via a mounting seat 407. The drive nut 403 is threadedly connected to the lead screw 405, and the drive seat 404 is fixed to the drive nut 403. The pallet 10 also has a strip-shaped clearance groove 10a. A part of the drive seat 404 passes through the strip-shaped clearance groove 10a and is located on the upper part of the pallet 10. The motor 401 is fixed on the lower part of the pallet 10. Specifically, the motor 401 is connected to the lower part of the pallet 10 via a motor... The bracket 402 is fixed to the lower part of the support plate 10; the output shaft of the motor 401 and the lead screw 405 are fixedly connected; the guide rail 414 is horizontally fixed to the upper part of the support plate 10; the slider 413 is connected to the guide rail 414; the vibration mechanism 50 is mounted between the drive seat 404 and the slider 413; the filter grid assembly 30 is mounted on the vibration mechanism 50; the movement of the filter grid assembly 30 in the X-axis direction is completed by the vibration mechanism 50; the photoelectric switch 409 can perform photoelectric limit on the movement of the filter grid assembly 30 in the X-axis direction; the vibration mechanism 50 has a compact structure, which makes it possible to adapt to more sizes of flat panel detectors 20; at the same time, the vibration mechanism 50 is mounted on the side relative to the flat panel detector 20, avoiding interference with the rear cable of the flat panel detector 20, and also providing a better fit. The placement of different flat panel detectors 20 provides favorable space; the withdrawal drive mechanism 40, connected to the vibration mechanism 50, is installed below the support plate 10 via the strip-shaped clearance groove 10a on the support plate 10, which also provides a beneficial effect on the installation space of the flat panel detector 20; the filter grid assembly 30 includes a filter grid 301, and the filter grid 301 is arranged in front of the vibration mechanism 50; under the drive of the motor 401, the filter grid 301 can completely cover the imaging area of ​​the flat panel detector 20 or completely withdraw from the imaging area of ​​the flat panel detector 20, that is, the filter grid assembly 30 can move out of the grid and withdraw above the flat panel detector 20 along the Y-axis direction, and the range of movement is to completely cover the imaging area of ​​the flat panel detector 20 and to completely withdraw from the imaging area of ​​the flat panel detector 20.

[0026] The vibration mechanism 50 includes a second motor 501, a second lead screw 507, a second drive nut 504, a vibration platform 503, a fixed base 502, a second guide rail 506, and a second slider 505. The vibration platform 503 is fixed between the drive base 404 and the first slider 413. The second guide rail 506 is horizontally fixed on the vibration platform 503 and is perpendicular to the first guide rail 414. The second slider 505 is connected to the second guide rail 506. The second motor 501 is fixed on the vibration platform 503. The output shaft of the second motor 501 is fixedly connected to the second lead screw 507. The second drive nut 504 is threadedly connected to the second lead screw 507 and is fixedly connected to the fixed base 502. The fixed base 502 is also connected to the second slider 505. The vibration platform 503 is connected to the drive seat 404 in a fixed manner to drive the movement in the Y-axis direction. A guide rail 506 is installed on the vibration platform 503, and a fixed seat 502 is installed on the slider 505 of the guide rail 506 to drive the movement in the X-axis direction. A motor 501 is installed on the vibration platform 503, and a drive nut 504 is installed on the fixed seat 502 to drive the movement in the X-axis direction. The input signal to the motor 501 can be adjusted to regulate the vibration amplitude and speed. Since the motor 501 moves along the Y-axis with the vibration platform 503, its power supply cable enters the drag chain 406 at the bottom of the support plate 10 through the channel inside the drive seat 404 to provide power.

[0027] The retraction drive mechanism 40 is also fixed to the outer limiting plates 411 on both sides of the support plate 10. An inner limiting plate 412 is fixed on the outer limiting plate 411. A U-shaped guide groove is formed between the inner limiting plate 412 and the outer limiting plate 411. In this embodiment, the U-shaped guide groove is arranged above the flat panel detector 20 to ensure that the movement trajectory of the filter grid assembly 30 does not shake. After the filter grid assembly 30 moves to completely cover the imaging area of ​​the flat panel detector 20, it will vibrate in the X-axis direction. The X-direction guiding width of the U-shaped guide groove should be greater than the amplitude of the filter grid assembly 30 to prevent it from detaching from the U-shaped guide groove during vibration. The length of the inner limiting plate 412 is greater than the length of the outer limiting plate 411. A photoelectric switch 409 is also fixed on the end of the inner limiting plate 412 that extends beyond the outer limiting plate 411.

[0028] The filter grid assembly 30 also includes a substrate 303 and a clamping plate 304. The filter grid 301 is fixed on the substrate 303 by the clamping plate 304, and the substrate 303 is arranged on the rear side of the filter grid 301. One end of the substrate 303 has a fixing ear 303a, which is fixedly connected to the fixing seat 502. The fixing ear 303a is also fixedly connected to the drive wire nut 504. Both sides of the filter grid 301 are fixed with upper and lower friction strips 302 that cooperate with the U-shaped guide groove.

[0029] A photoelectric trigger plate 410 is also fixed on the drive base 404, and two photoelectric switches 408 that cooperate with the photoelectric trigger plate 410 are fixed on the lower part of the support plate 10. The drive base 404 is connected to the vibration mechanism 50, and the vibration mechanism 50 is connected to the filter grid assembly 30, thereby driving the filter grid assembly 30 to move in the Y-axis direction. The photoelectric limit in the Y-axis direction is realized by the photoelectric switch 408 and the photoelectric trigger plate 410.

[0030] All of the above components are general standard parts or components known to those skilled in the art. Their structure and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0031] The above embodiments and figures are not intended to limit the product form and style of the present invention. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of the present invention.

Claims

1. A vibration grid removal device for a breast machine, the breast machine comprising a vertical arm (60) and a support plate (10), the vertical arm (60) being fixed on the support plate (10), and a flat panel detector (20) being fixed on the support plate (10), characterized in that, The vibration grid removal device includes a filter grid assembly (30), a vibration mechanism (50), and a removal drive mechanism (40). The removal drive mechanism (40) is mounted on the support plate (10) and is located near the side of the support plate (10). The removal drive mechanism (40) includes a motor (401), a lead screw (405), a drive nut (403), a drive seat (404), a guide rail (414), and a slider (413). The lead screw (405) is horizontally rotatably mounted on the lower part of the support plate (10). The drive nut (403) is threadedly connected to the lead screw (405). The drive seat (404) is fixed to the drive nut (403). The support plate (10) also has a strip-shaped clearance groove (10a). A part of the drive seat (404) passes through the strip-shaped clearance groove. The slot (10a) is located on the upper part of the tray (10), the motor (401) is fixed on the lower part of the tray (10), the output shaft of the motor (401) is fixedly connected to the lead screw (405), the guide rail (414) is horizontally fixed on the upper part of the tray (10), the slider (413) is connected to the guide rail (414), the vibration mechanism (50) is installed between the drive seat (404) and the slider (413), the filter grid assembly (30) is installed on the vibration mechanism (50), the filter grid assembly (30) includes the filter grid (301), and the filter grid (301) is arranged on the front side of the vibration mechanism (50); under the drive of the motor (401), the filter grid (301) can completely cover the imaging area of ​​the flat panel detector (20) or completely withdraw from the imaging area of ​​the flat panel detector (20); The vibration mechanism (50) includes a second motor (501), a second lead screw (507), a second drive nut (504), a vibration platform (503), a fixed base (502), a second guide rail (506), and a second slider (505). The vibration platform (503) is fixed between the drive base (404) and the first slider (413). The second guide rail (506) is horizontally fixed on the vibration platform (503), and the second guide rail (506) is perpendicular to the first guide rail (414). The second slider (505) is connected to the second guide rail (506), the second motor (501) is fixed on the vibration platform (503), the output shaft of the second motor (501) is fixedly connected to the second lead screw (507), the second drive nut (504) is threadedly connected to the second lead screw (507), the second drive nut (504) is fixedly connected to the fixed seat (502), and the fixed seat (502) is also fixedly connected to the second slider (505) to perform movement in the X-axis direction; The evacuation drive mechanism (40) is also fixed to the outer limiting plates (411) on both sides of the support plate (10). An inner limiting plate (412) is fixed on the outer limiting plate (411). A U-shaped guide groove is formed between the inner limiting plate (412) and the outer limiting plate (411). The length of the inner limiting plate (412) is greater than the length of the outer limiting plate (411). A photoelectric switch (409) is also fixed on the end of the inner limiting plate (412) that extends beyond the outer limiting plate (411). The X-axis guide width of the U-shaped guide groove is greater than the amplitude of the filter grid assembly (30).

2. The breast machine vibration grid removal device according to claim 1, characterized in that, The filter grid assembly (30) further includes a base plate (303) and a clamping plate (304). The filter grid (301) is fixed on the base plate (303) by the clamping plate (304), and the base plate (303) is arranged on the rear side of the filter grid (301). One end of the base plate (303) has a fixing ear (303a), which is fixedly connected to the fixing seat (502). The fixing ear (303a) is also fixedly connected to the drive wire nut (504). Both sides of the filter grid (301) are fixed with upper and lower friction strips (302) that cooperate with the U-shaped guide groove.

3. The breast machine vibration grid removal device according to claim 1, characterized in that, The drive base (404) is also fixed with a photoelectric trigger piece (410), and the lower part of the tray (10) is fixed with two photoelectric switches (408) that cooperate with the photoelectric trigger piece (410).

4. The mammary gland machine vibration grid removal device according to claim 2, characterized in that, The vertical arm (60) also has a receiving opening (60a) that cooperates with the filter grid assembly (30).

5. The breast machine vibration grid removal device according to claim 1, characterized in that, The motor (401) is fixed to the lower part of the support plate (10) by the motor bracket (402).

6. The breast machine vibration grid removal device according to claim 1, characterized in that, The lead screw (405) is horizontally rotatably mounted on the lower part of the support plate (10) via the mounting base (407).

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