Shock absorption and noise reduction device for breast imaging CT

Abstract

The invention discloses a breast imaging CT shock absorption and noise reduction device, and relates to the technical field of breast imaging, the breast imaging CT shock absorption and noise reduction device comprises a mounting base, a CT mounting assembly is fixedly mounted in the middle of the top of the mounting base, and the CT mounting assembly comprises a slewing bearing and a mounting frame. The shock pad can prevent the vibration of the mounting rack and the breast imaging CT from being transmitted to the scanning bed through the metal supporting piece, so that the comfort of a patient is protected, the imaging noise and motion tail shadow of the breast imaging CT are reduced, and the imaging picture is clearer; the damping pad can isolate ground vibration, so that the stability of the scanning bed body is ensured, the scanning bed body is prevented from generating weak vibration due to the ground vibration, the scanning bed body can be more stable, and the breasts of a patient lying on the scanning bed body are kept stable; the shock pad can play a certain adjusting role under the condition that the ground of a hospital is uneven, the scanning bed body is helped to be kept stable, and inclination or shaking caused by ground problems is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of breast imaging, in particular to a vibration reduction and noise reduction device for breast imaging CT. Background Art

[0002] Breast lesions are common gynecological diseases, and breast CT scans are very important means of early diagnosis and differentiation. When using breast imaging CT to examine breast lesions, the patient should lie on the center of the scanning bed with the breast drooping and stretching naturally, which is conducive to the display and comparison of the lesions.

[0003] In the prior art, breast imaging CT and scanning beds are high-precision, high-sensitivity devices, and their operating environment has an important impact on imaging quality and equipment life. Vibration is one of the main factors affecting equipment performance, which may come from the ground, support frame, external environment or the operation of the equipment itself. Vibration can cause the breast to shake slightly, resulting in more noise in the images taken by breast imaging CT. Noise can cause random brightness or grayscale fluctuations in the image, making the details of the image blurred and the edges unclear. More noise may also mask the subtle features of the lesion and affect the identification of the lesion. Summary of the invention

[0004] The purpose of the present invention is to overcome the technical problems existing in the above-mentioned technology and to provide a vibration reduction and noise reduction device for breast imaging CT.

[0005] To achieve the above object, the present invention provides the following technical solutions: The vibration reduction and noise reduction device for breast imaging CT includes: A mounting base, wherein a CT mounting assembly is fixedly mounted at the middle of the top of the mounting base, wherein the CT mounting assembly comprises a slewing bearing and a mounting frame, wherein the slewing bearing is used to drive the mounting frame to rotate, and the mounting frame is used to mount a breast imaging CT; Metal support members, the number of which is four and which are symmetrically fixedly mounted at the four corners of the top of the mounting base; A scanning bed assembly, the scanning bed assembly comprising a fixing frame and a scanning bed body, the scanning bed body being fixedly mounted on the fixing frame, and the scanning bed body being used to provide support for the patient; Shock-absorbing pads, the number of which is four, are fixedly installed on the top of the metal support respectively, and the top of the shock-absorbing pads is fixedly connected to the four corners of the bottom of the fixing frame respectively.

[0006] Preferred: The bottom of the shock-absorbing pad is fixedly connected with a mounting pad, and four corners of the top of the mounting pad are provided with mounting holes.

[0007] Preferred: The four corners of the top of the metal support are each provided with a second through-hole, the second through-hole matches the mounting hole, and the position of the second through-hole corresponds to the position of the mounting hole.

[0008] Preferred: A through hole three is formed at the bottom of the metal support, and the metal support is fixedly mounted at a corner of the top of the mounting base by bolts in the through hole three.

[0009] Preferred: The top of the shock-absorbing pad is configured as a flat surface.

[0010] Preferred: A fixing hole is provided at the center of the plane portion on the top of the shock-absorbing pad.

[0011] Preferred: A fixing plate is fixedly installed at the four corners of the bottom of the fixing frame, and a through hole is opened on the top of the fixing plate, and the through hole matches the fixing hole. After the fixing frame is placed on the top of the four shock-absorbing pads, the fixing frame is fixedly installed on the four shock-absorbing pads through the through hole and the bolts in the corresponding fixing holes.

[0012] Preferred: An L-shaped reinforcing plate is fixedly mounted on the top of the fixing plate, and two ends of the L-shaped reinforcing plate are respectively fixedly connected to two inner walls closest to the fixing frame.

[0013] Preferred: The overall shape of the shock-absorbing pad is mushroom-shaped.

[0014] Preferred: The top of the scanning bed body is provided with a receiving groove, which is in an arc-shaped concave shape from the edge to the center.

[0015] Preferred: The top of the scanning bed body is provided with a receiving groove, which is in an arc-shaped concave shape from the edge to the center.

[0016] Preferred: A breast detection port is provided at the lowest point of the center of the receiving slot on the top of the scanning bed body.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, the shock-absorbing pad can prevent the vibration of the mounting frame and the breast imaging CT from being transmitted to the scanning bed through the metal support, thereby protecting the patient's comfort, reducing the imaging noise and motion tail of the breast imaging CT, and making the imaging picture clearer; 2. In the present invention, the shock-absorbing pad can isolate the ground vibration, ensure the stability of the scanning bed body, and prevent the scanning bed body from generating weak vibration due to the ground vibration, thereby making the scanning bed body more stable and keeping the breast of the patient lying on the scanning bed body stable; 3. In the present invention, the shock-absorbing pad can play a certain regulating role when the hospital floor is uneven, helping the scanning bed body to remain stable and avoid tilting or shaking caused by floor problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional front view schematic diagram of the overall structure of a vibration reduction and noise reduction device for breast imaging CT in one embodiment of the present invention; Figure 2 It is a three-dimensional bottom-up schematic diagram of the overall structure of a vibration reduction and noise reduction device for breast imaging CT in one embodiment of the present invention; Figure 3 It is a front view schematic diagram of the overall structure of a vibration reduction and noise reduction device for breast imaging CT in one embodiment of the present invention; Figure 4 It is a front view schematic diagram of the overall structure of the shock-absorbing pad in the shock-absorbing and noise-reducing device for breast imaging CT according to one embodiment of the present invention; Figure 5 It is a three-dimensional front view schematic diagram of the overall structure of the shock-absorbing pad in the shock-absorbing and noise-reducing device for breast imaging CT in one embodiment of the present invention; Figure 6 It is a top cross-sectional schematic diagram of a fixing frame in a vibration reduction and noise reduction device for breast imaging CT according to one embodiment of the present invention; Figure 7 It is a front schematic diagram of the overall structure of a metal support member in a vibration reduction and noise reduction device for breast imaging CT in one embodiment of the present invention.

[0019] In the figure: 100, shock-absorbing pad; 110, mounting pad; 111, mounting hole; 120, fixing hole; 200, scanning bed assembly; 210, fixing frame; 211, fixing plate; 212, through-port one; 213, L-shaped reinforcing plate; 220, scanning bed body; 221, breast detection port; 300, mounting base; 400, metal support; 401, through-port two; 402, through-port three; 500, CT mounting assembly; 510, slewing bearing; 520, mounting frame. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Combined with Figure 1-7 In this embodiment, the vibration reduction and noise reduction device for breast imaging CT includes: a mounting base 300, a CT mounting assembly 500 is fixedly mounted at the middle of the top of the mounting base 300, the CT mounting assembly 500 includes a slewing bearing 510 and a mounting frame 520, the slewing bearing 510 is used to drive the mounting frame 520 to rotate, and the mounting frame 520 is used to mount the breast imaging CT; a metal support 400, the number of the metal support 400 is four, and they are symmetrically fixedly mounted at the four corners of the top of the mounting base 300; a scanning bed assembly 200, the scanning bed assembly 200 includes a fixing frame 210 and a scanning bed body 220, the scanning bed body 220 is fixedly mounted on the fixing frame 210, and the scanning bed body 220 is used to provide support for the patient; a shock-absorbing pad 100, the number of the shock-absorbing pad 100 is four, and they are fixedly mounted on the top of the metal support 400, and the top of the shock-absorbing pad 100 is fixedly connected to the four corners of the bottom of the fixing frame 210.

[0022] Specifically, the patient lies on the scanning bed body 220, and the slewing bearing 510 is started to drive the mounting frame 520 to rotate. The mounting frame 520 drives the breast imaging CT fixedly installed on the top thereof to rotate, thereby achieving the purpose of performing breast imaging scanning on the patient's breast. The metal support 400 is used to support the scanning bed assembly 200. The vibration generated by the patient lying on the fixing frame 210 and the vibration generated by the breast imaging CT during rotation are both absorbed by the shock-absorbing pad 100, so that the patient can lie stably on the fixing frame 210, avoiding the vibration from being transmitted to the patient lying on the fixing frame 210, which causes the generation of a motion tail shadow when the breast imaging CT is taken. The mounting base 300 is used to install and support the metal support 400, the CT mounting assembly 500, the shock-absorbing pad 100 and the scanning bed assembly 200.

[0023] In this embodiment, the bottom of the shock-absorbing pad 100 is fixedly connected to the mounting pad 110, and the four top corners of the mounting pad 110 are each provided with a mounting hole 111; the four top corners of the metal support 400 are each provided with a through-opening 401, the through-opening 401 matches the mounting hole 111, and the position of the through-opening 401 corresponds to the position of the mounting hole 111; the bottom of the metal support 400 is provided with a through-opening 402, and the metal support 400 is fixedly installed at a corner of the top of the mounting base 300 by means of bolts in the through-opening 402.

[0024] Specifically, the four metal support members 400 are fixedly installed at a corner of the top of the mounting base 300 by respectively passing through bolts in the through-holes 402 at their own bottoms, so that the four metal support members 400 are symmetrically fixedly installed at the four corners of the top of the mounting base 300, and the shock-absorbing pad 100 is fixedly installed on the top of the metal support member 400 through the four mounting holes 111 on the mounting pad 110 fixedly connected to its own bottom and the bolts set in the four mounting holes 111, thereby achieving the four shock-absorbing pads 100 being respectively fixedly installed on the top of the metal support member 400.

[0025] In the present embodiment, the top of the shock-absorbing pad 100 is set as a plane portion; a fixing hole 120 is opened at the center of the plane portion of the top of the shock-absorbing pad 100; fixing plates 211 are fixedly installed at the four corners of the bottom of the fixing frame 210, and a through-hole 212 is opened on the top of the fixing plate 211, and the through-hole 212 matches the fixing hole 120. After the fixing frame 210 is placed on the top of the four shock-absorbing pads 100, the fixing frame 210 is fixedly installed on the four shock-absorbing pads 100 through the through-hole 212 and the corresponding bolts in the fixing hole 120; an L-shaped reinforcing plate 213 is fixedly installed on the top of the fixing plate 211, and the two ends of the L-shaped reinforcing plate 213 are respectively fixedly connected to the two inner walls closest to the fixing frame 210.

[0026] Specifically, the fixing plate 211 is fixedly mounted on the shock-absorbing pad 100 through the through-port 1 212 opened by the fixing plate 211 and the bolts arranged in the through-port 1 212, so that the fixing frame 210 is fixedly mounted on the top of the four shock-absorbing pads 100. At the same time, the tightening force of the bolts needs to be moderate to avoid excessive compression of the shock-absorbing pads 100. The scanning bed body 220 is fixedly mounted on the top of the fixing frame 210 through bolts and embedded parts. The L-shaped reinforcing plate 213 fixes the fixing plate 211 and the fixing frame 210 together, so that the breast detection port 221 is more firmly connected to the fixing frame 210, thereby increasing the stability of the fixing plate 211.

[0027] In this embodiment, a receiving groove is provided on the top of the scanning bed body 220 , and the receiving groove is in an arc-shaped concave shape from the edge to the center; a breast detection port 221 is opened at the lowest point in the center of the receiving groove on the top of the scanning bed body 220 .

[0028] Specifically, the patient lies prone in the receiving groove on the top of the scanning bed body 220, and the patient's entire upper body can lie prone in the receiving groove. The arc-shaped concave shape of the receiving groove from the edge to the center can increase the comfort of the patient lying in the receiving groove. The diameter of the breast detection port 221 is larger than the diameter of the patient's breast, so that the patient's breast can be easily inserted into the breast detection port 221.

[0029] In this embodiment, the shock absorbing pad 100 is made of a highly elastic material such as rubber, polyurethane or a composite material, which has good elasticity and deformation ability. When the vibration is transmitted to the shock absorbing pad 100, the shock absorbing pad 100 will undergo elastic deformation, converting the vibration energy into heat energy between internal molecules, thereby reducing the transmission of vibration.

[0030] In this embodiment, the scanning bed body 220 is the direct contact interface between the patient and the device, and its stability is crucial to the imaging quality. The shock-absorbing pad 100 is installed between the fixing frame 210 and the metal support 400 to isolate the vibration source. Isolation of patient movement: The patient's breathing, heartbeat or involuntary movement may cause small vibrations. The shock-absorbing pad can absorb these vibrations and prevent them from being transmitted to the mounting frame 520 and the breast imaging CT installed on the mounting frame 520. Stability of movement of the scanning bed body 220: The scanning bed body 220 may generate mechanical vibrations during movement. The shock-absorbing pad 100 can buffer these vibrations, ensure the stability of movement, and avoid friction damage to the scanning bed body 220 when the device is moved.

[0031] In this embodiment, when the slewing bearing 510 drives the mounting frame 520 and the breast imaging CT to rotate, centrifugal force and mechanical vibration will be generated, and these vibrations will be transmitted to the ground or the scanning bed body 220 through the mounting base 300 or the metal support 400. The shock-absorbing pad 100 can effectively isolate the vibration of the slewing bearing 510, the mounting frame 520 and the breast imaging CT to prevent it from affecting the imaging quality. Buffering of centrifugal force: The shock-absorbing pad 100 can absorb the centrifugal force generated by the mounting frame 520 and the breast imaging CT, and reduce its impact on the metal support 400 and the scanning bed body 220. Reverse transmission of vibration: The shock-absorbing pad 100 can prevent the vibration of the mounting frame 520 from being transmitted to the scanning bed through the metal support 400, thereby protecting the patient's comfort, reducing the imaging noise and motion tail of the breast imaging CT, and making the imaging picture clearer.

[0032] In this embodiment, the ground vibration in the hospital environment may be transmitted to the breast imaging CT and the scanning bed body 220 through the mounting base 300 and the metal support 400, affecting the stability of the equipment. The shock-absorbing pad 100 can isolate the ground vibration, ensure the stability of the scanning bed body 220, and prevent the scanning bed body 220 from being subjected to slight vibration caused by ground vibration. The shock-absorbing pad 100 can absorb the impact energy transmitted from the ground, such as the vibration caused by the movement of the cart or the falling of an object. Even if it is a slight ground vibration, the shock-absorbing pad 100 can isolate it through elastic absorption and damping effect, and prevent the vibration from being transmitted to the scanning bed body 220, thereby making the scanning bed body 220 more stable, so that the breast of the patient lying on the scanning bed body 220 remains stable.

[0033] In this embodiment, the scanning bed body 220 needs to be placed in a level and stable environment, but the hospital floor may be slightly uneven. The shock-absorbing pad 100 can play a certain regulating role to help the scanning bed body 220 remain stable and stable and avoid tilting or shaking caused by ground problems.

[0034] Working principle: the patient lies on the scanning bed body 220, the slewing bearing 510 is started to drive the mounting frame 520 to rotate, and the mounting frame 520 drives the breast imaging CT fixed on the top to rotate, so as to achieve the purpose of breast imaging scanning of the patient's breast. The metal support 400 is used to support the scanning bed assembly 200. The vibration generated by the patient lying on the fixing frame 210 and the vibration generated by the breast imaging CT during rotation will be absorbed by the shock-absorbing pad 100, so that the patient can lie stably on the fixing frame 210, avoiding the vibration from being transmitted to the patient lying on the fixing frame 210, which will cause the movement tail shadow when the breast imaging CT is taken. The mounting base 300 is used to install and support the metal support 400, the CT mounting assembly 500, the shock-absorbing pad 100 and the scanning bed assembly 200.

[0035] The four metal support members 400 are fixedly installed at a corner of the top of the mounting base 300 by respectively passing through bolts in the through-holes 402 at their own bottoms, so that the four metal support members 400 are symmetrically fixedly installed at the four corners of the top of the mounting base 300, and the shock-absorbing pad 100 is fixedly installed on the top of the metal support member 400 through the four mounting holes 111 on the mounting pad 110 fixedly connected to its own bottom and the bolts set in the four mounting holes 111, thereby achieving the four shock-absorbing pads 100 being fixedly installed on the top of the metal support member 400 respectively.

[0036] The fixing plate 211 is fixedly mounted on the shock-absorbing pad 100 through the through-port 1 212 opened by the fixing plate 211 and the bolts arranged in the through-port 1 212, so that the fixing frame 210 is fixedly mounted on the top of the four shock-absorbing pads 100. Meanwhile, the tightening force of the bolts needs to be moderate to avoid excessive compression of the shock-absorbing pads 100. The scanning bed body 220 is fixedly mounted on the top of the fixing frame 210 through bolts and embedded parts. The L-shaped reinforcing plate 213 fixes the fixing plate 211 and the fixing frame 210 together, so that the breast detection port 221 is more firmly connected to the fixing frame 210, thereby increasing the stability of the fixing plate 211.

[0037] The patient lies prone in the receiving groove on the top of the scanning bed body 220, and the patient's entire upper body can lie prone in the receiving groove. The arc-shaped concave shape of the receiving groove from the edge to the center can increase the comfort of the patient lying in the receiving groove. The diameter of the breast detection port 221 is larger than the diameter of the patient's breast, so that the patient's breast can be easily inserted into the breast detection port 221.

[0038] The shock-absorbing pad 100 is made of a highly elastic material such as rubber, polyurethane or a composite material, which has good elasticity and deformation capacity. When the vibration is transmitted to the shock-absorbing pad 100, the shock-absorbing pad 100 will undergo elastic deformation, converting the vibration energy into heat energy between internal molecules, thereby reducing the transmission of vibration. The scanning bed body 220 is the direct contact interface between the patient and the equipment, and its stability is crucial to the imaging quality. The shock-absorbing pad 100 is installed between the fixing frame 210 and the metal support 400 to isolate the vibration source. Isolation of patient movement: The patient's breathing, heartbeat or involuntary movement may cause tiny vibrations. The shock-absorbing pad can absorb these vibrations and prevent them from being transmitted to the mounting frame 520 and the breast imaging CT mounted on the mounting frame 520. Stability of movement of the scanning bed body 220: The scanning bed body 220 may generate mechanical vibrations during movement. The shock-absorbing pad 100 can buffer these vibrations, ensure the stability of movement, and avoid friction damage to the scanning bed body 220 when the device is moved. When the slewing bearing 510 drives the mounting frame 520 and the breast imaging CT to rotate, centrifugal force and mechanical vibration will be generated, and these vibrations will be transmitted to the ground or the scanning bed body 220 through the mounting base 300 or the metal support 400. The shock-absorbing pad 100 can effectively isolate the vibration of the slewing bearing 510, the mounting frame 520 and the breast imaging CT to prevent it from affecting the imaging quality. Buffering of centrifugal force: The shock-absorbing pad 100 can absorb the centrifugal force generated by the mounting frame 520 and the breast imaging CT, and reduce its impact on the metal support 400 and the scanning bed body 220. Reverse transmission of vibration: The shock-absorbing pad 100 can prevent the vibration of the mounting frame 520 from being transmitted to the scanning bed through the metal support 400, thereby protecting the patient's comfort, reducing the imaging noise and motion tail of the breast imaging CT, and making the imaging picture clearer. The ground vibration in the hospital environment may be transmitted to the breast imaging CT and the scanning bed body 220 through the mounting base 300 and the metal support 400, affecting the stability of the equipment. The shock-absorbing pad 100 can isolate the ground vibration, ensure the stability of the scanning bed body 220, and prevent the scanning bed body 220 from being subjected to slight vibration caused by ground vibration. The shock-absorbing pad 100 can absorb the impact energy transmitted from the ground, such as the vibration caused by the movement of the cart or the falling of objects. Even if it is a slight ground vibration, the shock-absorbing pad 100 can isolate it through elastic absorption and damping effect, and prevent the vibration from being transmitted to the scanning bed body 220, thereby making the scanning bed body 220 more stable, so that the breasts of patients lying on the scanning bed body 220 remain stable.

[0039] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vibration reduction and noise reduction device for breast imaging CT, characterized in that: include: A mounting base (300), wherein a CT mounting assembly (500) is fixedly mounted at the middle of the top of the mounting base (300), the CT mounting assembly (500) comprising a slewing bearing (510) and a mounting frame (520), the slewing bearing (510) being used to drive the mounting frame (520) to rotate, and the mounting frame (520) being used to mount a breast imaging CT; Metal support members (400), the number of the metal support members (400) being four, and the metal support members (400) being symmetrically fixedly mounted at the four corners of the top of the mounting base (300); A scanning bed assembly (200), the scanning bed assembly (200) comprising a fixing frame (210) and a scanning bed body (220), the scanning bed body (220) being fixedly mounted on the fixing frame (210), and the scanning bed body (220) being used to provide support for a patient; Shock-absorbing pads (100), the number of which is four, which are respectively fixedly mounted on the top of the metal support (400), and the tops of the shock-absorbing pads (100) are respectively fixedly connected to the four corners of the bottom of the fixing frame (210).

2. The vibration reduction and noise reduction device for breast imaging CT according to claim 1, characterized in that: The bottom of the shock-absorbing pad (100) is fixedly connected to a mounting pad (110), and four corners of the top of the mounting pad (110) are provided with mounting holes (111).

3. The vibration reduction and noise reduction device for breast imaging CT according to claim 2, characterized in that: The four corners of the top of the metal support member (400) are each provided with a second through-opening (401), the second through-opening (401) matches the mounting hole (111), and the position of the second through-opening (401) corresponds to the position of the mounting hole (111).

4. The vibration reduction and noise reduction device for breast imaging CT according to claim 1, characterized in that: A third through hole (402) is provided at the bottom of the metal support member (400), and the metal support member (400) is fixedly mounted at a corner of the top of the mounting base (300) by means of bolts in the third through hole (402).

5. The vibration reduction and noise reduction device for breast imaging CT according to claim 1, characterized in that: The top of the shock-absorbing pad (100) is configured as a flat surface.

6. The vibration reduction and noise reduction device for breast imaging CT according to claim 5, characterized in that: A fixing hole (120) is provided at the center of the plane portion on the top of the shock-absorbing pad (100).

7. The vibration reduction and noise reduction device for breast imaging CT according to claim 6, characterized in that: A fixing plate (211) is fixedly mounted at each of the four corners of the bottom of the fixing frame (210), and a through opening (212) is provided on the top of each of the fixing plates (211). The through opening (212) matches the fixing hole (120), and after the fixing frame (210) is placed on top of the four shock-absorbing pads (100), the fixing frame (210) is fixedly mounted on the four shock-absorbing pads (100) by bolts in the through opening (212) and the corresponding fixing holes (120).

8. The vibration reduction and noise reduction device for breast imaging CT according to claim 7, characterized in that: An L-shaped reinforcement plate (213) is fixedly mounted on the top of the fixing plate (211), and two ends of the L-shaped reinforcement plate (213) are respectively fixedly connected to the two inner walls closest to the fixing frame (210).

9. The vibration reduction and noise reduction device for breast imaging CT according to claim 1, characterized in that: The overall shape of the shock-absorbing pad (100) is a mushroom.

10. The vibration reduction and noise reduction device for breast imaging CT according to claim 1, characterized in that The shock absorbing pad (100) is made of a highly elastic material.

11. The vibration reduction and noise reduction device for breast imaging CT according to claim 1, characterized in that: The top of the scanning bed body (220) is provided with a receiving groove, which is in the shape of an arc-shaped depression from the edge toward the center.

12. The vibration reduction and noise reduction device for breast imaging CT according to claim 11, characterized in that: A breast detection port (221) is provided at the lowest point in the center of the receiving slot on the top of the scanning bed body (220).

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