CN212755679U - Special multifunctional scanner for mammary gland - Google Patents

Abstract

The application provides a special multi-functional scanner of mammary gland, it includes: rotate piece, X ray source, flat panel detector, scanning cup, clamp plate mount and clamp plate, X ray source and flat panel detector are fixed to be set up in the opposite side of the center of rotation of rotating the piece, the clamp plate mount slide set up in between X ray source and the flat panel detector, clamp plate demountable assembly extremely the clamp plate mount, the scanning cup has the second position that moves into the first position between the X ray source and the flat panel detector and shift out outside the two relative position of X ray source and flat panel detector.

Description

Special multifunctional scanner for mammary gland

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to special multipurpose scanner of mammary gland.

Background

When the conventional molybdenum target X-ray machine is used for mammary gland examination, the mammary gland needs to be pressed, so that the examinee feels uncomfortable; in addition, the use of a molybdenum target X-ray machine is not effective in examining dense mammary glands due to the shielding effect. However, the radiation dose of the whole breast is somewhat high in the case of CT examination, so that a dedicated CT scanner for mammary gland has been developed.

The imaging system of the existing dedicated breast CT scanner generally consists of an X-ray source and a flat panel detector. The flat panel detector has high intrinsic resolution and large size, and is an ideal detector for CT imaging of mammary gland; the whole mammary gland can be scanned by rotating the whole mammary gland by only one circle, and a high-resolution tomographic image is given.

The image of the CT scanner special for the mammary gland is more real than that of the conventional molybdenum target X-ray mammary gland examination, and the soft tissue and the cancerated tissue of the mammary gland can be distinguished. These images are clearly different from two-dimensional conventional molybdenum target X-ray breast examinations, in that they are true three-dimensional images of the entire breast viewed from all directions. The doctor can roll the image layer up and down, left and right, and any unique view of the mammary gland can be obtained in an unprecedented mode without worrying about the occlusion of the gland.

The cone beam CT adopting the flat panel detector can finish the acquisition of the projection data of the mammary gland only by rotating for one circle, but is limited by an image reconstruction algorithm, and the position relation of an X-ray source, a scanning cup and the detector must meet certain requirements. According to the limitation of the existing image reconstruction algorithm, the field angle from the X-ray source to the single side of the detector (the side passing through the rotating circular plane of the focal point of the X-ray source) is not more than 12 degrees, otherwise, the quality problem exists in the exceeding part of the tomographic image, and accurate diagnosis information cannot be provided.

This makes the distance of the X-ray source to the flat panel detector closely related to the milk axis height due to the limitation of the opening angle. The higher the breast axis height, the further the X-ray source is from the flat panel detector. The larger the size of the breast specific CT scanner. To meet the scanning requirements of the vast majority of female subjects, the diameter of the dedicated breast CT scanners on the market today reaches about 2 meters.

Breast cancer is the first-ranked neoplastic disease in female tumor incidence. The earlier the breast cancer is found, the higher the cure rate. Therefore, breast cancer screening is the key to early detection of breast cancer. Hundreds of millions of women of childbearing age live in rural areas, and are limited by geographical conditions, so that the women cannot go to urban hospitals to screen breast cancer. If the CT scanner special for mammary gland is arranged on an ambulance and the women of child bearing age is screened at the upper door of rural areas, the CT scanner is beneficial to protecting the health of the rural women.

The large-size special CT scanner for the mammary gland in the market is obviously only suitable for indoor use and is not suitable for a common ambulance. If one wants to fit the scanner in a normal ambulance, it must be miniaturized.

SUMMERY OF THE UTILITY MODEL

The utility model discloses problem based on prior art exists provides a miniaturized and special multi-functional scanner of mammary gland that possesses multi-functional.

The utility model provides a special multi-functional scanner of mammary gland, it includes: rotate piece, X ray source, flat panel detector, scanning cup, clamp plate mount and clamp plate, X ray source and flat panel detector are fixed to be set up in the opposite side of the center of rotation of rotating the piece, and the axis of rotation of rotating the piece sets up along vertical direction, the clamp plate mount slide set up in between X ray source and the flat panel detector, clamp plate demountable assembly extremely the clamp plate mount, the scanning cup has the first position of moving into between the X ray source and the flat panel detector and shifts out the second position outside the two relative position of X ray source and flat panel detector.

Wherein, the scanner further includes the frame, it sets up in the frame to rotate the piece.

The scanner further comprises a shell covering the rack, the scanning cup is located at the first position when assembled to the shell, and the scanning cup is located at the second position when taken out of the shell.

When the scanning cup is located at the first position, the axis of the scanning cup is superposed with the rotation center of the rotating member.

The rotating part is a rotary table, the scanner further comprises a pressing plate sliding mechanism, and the pressing plate fixing frame is connected to the rotary table through the pressing plate sliding mechanism.

The pressure plate sliding mechanism is a screw nut mechanism, a piston mechanism or a gear rack mechanism.

The pressing plate sliding mechanism is arranged at the center of the bottom end of the pressing plate fixing frame and is perpendicular to the main plane of the pressing plate.

The scanner further comprises a pair of guide mechanisms arranged on two outer sides of the pressing plate sliding mechanism, each guide mechanism comprises a sliding block connected to the pressing plate fixing frame and a sliding rail arranged on the rotary table, and the sliding blocks are arranged on the sliding rails in a sliding mode.

Wherein the dimensions of the housing in both the width and length directions do not exceed 1.5 m.

Compared with the prior art, the utility model discloses special multi-functional scanner of mammary gland is including sliding the clamp plate mount that sets up between X ray source and flat panel detector, and clamp plate demountable assembly to clamp plate mount, and the scanning cup immigrable or shift out between X ray source and the flat panel detector to make and to carry out 3D tomoscan formation of image to the breast that is no longer than preset size through the scanning cup, and carry out the X-ray through the clamp plate and shoot the formation of image to being greater than preset size's breast.

Drawings

Fig. 1 is a perspective view of a multifunctional scanner for mammary gland therapy according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the ordinary skilled person in the art without creative work belong to the protection scope of the present invention.

The utility model provides a special multi-functional scanner of mammary gland, it includes frame 1, shell 2, rotates 4, X ray source 4, flat panel detector 5, scanning cup 6, clamp plate mount (not marking), clamp plate 7, clamp plate slide mechanism 8 and guiding mechanism 9.

The rotating part 4 is rotatably arranged on the frame 1, and the shell 2 is covered outside the frame 1. In this embodiment, the housing 2 is a transparent housing, the rotating member 4 is a rotating disc rotatably disposed on the frame, and the rotating disc can be driven by a belt wheel mechanism. The turntable is rotatable 360 deg. relative to the gantry 1 in a direction parallel to the main plane of the turntable. In other embodiments, the rotating member 4 may be a hollow ring mechanism.

The X-ray source 4 and the flat panel detector 5 are fixedly arranged on the opposite sides of the rotation center of the rotary table 3, the pressing plate fixing frame is arranged between the X-ray source 4 and the flat panel detector 5 in a sliding mode, the pressing plate 7 is detachably assembled to the pressing plate fixing frame, and the scanning cup 6 is provided with a first position moving into the space between the X-ray source 4 and the flat panel detector 5 and a second position moving out of the space between the X-ray source 4 and the flat panel detector 5.

The scanning cup 6 is in said first position when the scanning cup 6 is assembled to said housing 2 and the scanning cup 6 is in said second position when the scanning cup 6 is removed from said housing 2. That is, switching between the first position and the second position is achieved by adjusting the scanning cup 6 in such a manner as to be fixed to the housing 2 and detached from the housing 2, and at this time, the second position may be any position removed from the housing 2.

Preferably, when the scanning cup 6 is located at the first position, the axis of the scanning cup 6 coincides with the rotation center of the rotation member 3.

In the present embodiment, the platen holder is connected to the turntable 3 through a platen slide mechanism 8. The pressing plate sliding mechanism 8 can be a screw-nut mechanism, a piston mechanism, a gear-rack mechanism or the like. Preferably, the pressing plate sliding mechanism 8 is disposed at the center of the bottom end of the pressing plate fixing frame and perpendicular to the main plane of the pressing plate 7. Through the setting of clamp plate slide mechanism 8, the clamp plate slides and sets up on the carousel, can switch over the position between the different functions of scanner.

A pair of guide mechanisms 9 is provided on both outer sides of the platen slide mechanism 8. The guide mechanism 9 comprises a sliding block connected to the pressing plate fixing frame and a sliding rail arranged on the rotary table 3, and the sliding block is arranged on the sliding rail in a sliding mode. The sliding rail may be of a protruding design (e.g., a rib) or a recessed design (e.g., a groove).

The flat panel detector 5 is slidably mounted on the turntable to allow the scanner to switch positions between different functions.

The size of the housing in the direction of the line connecting the center of the X-ray source and the center of the flat panel detector does not exceed 1.5 m.

In order to move conveniently, further, the special multifunctional scanner for the mammary gland further comprises a plurality of universal wheels arranged at the bottom of the rack. The CT scanner is realized in the following way: when the breast is not larger than a preset size, a CT imaging mode is selected. At this time, the flat panel detector 5 is adjusted to a position far away from the rotation center of the turntable, further, the pressing plate 7 is taken out from the turntable 3, the scanning cup 6 is placed at the first position, the subject lies on the scanning bed (i.e., the equipment housing), the breast is placed in the scanning cup 6, the X-ray source 4 and the flat panel detector 5 on the turntable rotate around the scanning cup 6, the projection data of the breast is acquired, and then the projection data is sent to the computer for image reconstruction. In the application scene, the flat panel detector 5 is far away from the rotation center of the turntable, so that more breast image information can be acquired.

The realization mode of the X-ray machine is as follows: and when the breast is larger than the preset size, rotating the imaging mode of the X-ray machine. At this point, the flat panel detector is translated to a position closer to the center of rotation, and the scanning cup 6 is moved to a second position, and the platen 7 is mounted to the platen mount. The examinee lies on the scanning bed (namely the equipment shell), the breast is placed between the pressing plate 7 and the flat panel detector 5, the angle of the turntable is adjusted, the pressing plate 7 presses the breast on the plane of the flat panel detector 5 through the control of the motor, and then the projection data are obtained through exposure, so that the imaging is completed. Under the application scene, the flat panel detector 5 is close to the rotating center of the turntable, so that the flat panel detector and the pressing plate 7 are conveniently matched for imaging.

Compared with the prior art, the utility model discloses special multi-functional scanner of mammary gland is including sliding the clamp plate mount that sets up between X ray source 4 and flat panel detector 5, and clamp plate 7 demountable assembly to clamp plate mount, and scan cup 6 immigrable or shift out between X ray source 4 and flat panel detector 5 to make and to carry out 3D tomoscan formation of image to the breast that is no longer than predetermineeing the size through scanning cup 6, and carry out the X-ray through the clamp plate and shoot the formation of image to the breast that is greater than predetermineeing the size. In order to meet the requirements, the multifunctional scanner special for the mammary gland further comprises a CT imaging module and a molybdenum target X-ray machine photographing module, wherein the CT imaging module is used for imaging the breast and performing 3D reconstruction when the breast is placed into the scanning cup 6 for scanning, and the molybdenum target X-ray machine photographing module is used for exposing and acquiring projection data when the breast is pressed on the plane of the flat panel detector 5 through the pressing plate 7 so as to finish imaging. In addition, the pressing plate 7 can perform X-ray photographic imaging on the breast with the size larger than the preset size, some breast cancer cells can be transferred to axillary lymph nodes, and the axillary lymph nodes are imaged by a molybdenum target X-ray machine, so that tumors can be found and diagnosed; however, the position of a receptor is limited, axillary lymph nodes cannot enter a scanning cup, and the conventional special breast CT scanner is difficult to accurately image the axillary lymph nodes, so that the conventional special breast CT scanner has a risk of missed diagnosis; this application can expose when pressing from both sides the armpit lymph gland on 5 planes flat panel detector through clamp plate 7 and acquire projection data, accomplishes the formation of image, realizes the X-ray photography imaging to the armpit lymph gland.

When the examinee is detected, the examinee lies on the examination bed, the multifunctional scanner special for the mammary gland is positioned under the body, the breast is in a suspension state due to the influence of the gravity, the gravity replaces manual traction, the breast and part of pectoral muscles cannot retract, the imaging of the axillary lymph nodes is more convenient, and the effect is better.

This application unites two into one traditional molybdenum target X-ray machine and special CT scanner of mammary gland for technical scheme after the improvement can provide traditional X-ray and take a photograph the function, can provide the tomography function again, has both avoided missing the diagnosis, has still satisfied the miniaturized requirement.

With miniaturization, the breast axis height of a breast that can be scanned is limited. For the examinees whose mammary axis height exceeds the scanning range, the X-ray machine photographing mode can be adopted for imaging, the condition that all the examinees cannot be imaged due to the miniaturization of the special multifunctional scanner for the mammary gland is avoided, and the application range of the special multifunctional scanner for the mammary gland is expanded.

Furthermore, the miniaturized multifunctional scanner special for the mammary gland can be installed on a common ambulance, the requirement of rural physical examination is met, and the imaging requirement of axillary lymph nodes can be met by the aid of the molybdenum target X-ray machine photographing function.

The above-described embodiments are merely illustrative of one or more embodiments of the present invention, and the description thereof is more specific and detailed, but not intended to limit the scope of the invention. It should be noted that, for those skilled in the art, many variations and modifications can be made without departing from the spirit of the invention, and these are all within the scope of the invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (9)

1. A multifunctional scanner dedicated for breast, the scanner comprising: rotate piece, X ray source, flat panel detector, scanning cup, clamp plate mount and clamp plate, X ray source and flat panel detector are fixed to be set up in the opposite side of the center of rotation of rotating the piece, and the axis of rotation of rotating the piece sets up along vertical direction, the clamp plate mount slide set up in between X ray source and the flat panel detector, clamp plate demountable assembly extremely the clamp plate mount, the scanning cup has the first position of moving into between the X ray source and the flat panel detector and shifts out the second position outside the two relative position of X ray source and flat panel detector.

2. The multifunctional scanner as claimed in claim 1, wherein the scanner further comprises a frame, and the rotating member is rotatably disposed on the frame.

3. The multifunctional scanner as claimed in claim 2, further comprising a housing covering the frame, wherein the scanning cup is in the first position when the scanning cup is assembled to the housing, and the scanning cup is in the second position when the scanning cup is removed from the housing.

4. The multi-functional scanner of claim 3, wherein the axis of the scanning cup coincides with the center of rotation of the rotating member when the scanning cup is in the first position.

5. The multifunctional scanner of claim 1, wherein the rotating member is a rotating plate, the scanner further comprises a pressing plate sliding mechanism, and the pressing plate fixing frame is connected to the rotating plate through the pressing plate sliding mechanism.

6. The multifunctional scanner of claim 5, wherein the pressing plate sliding mechanism is a screw-nut mechanism, a piston mechanism or a rack-and-pinion mechanism.

7. The multifunctional scanner as claimed in claim 5, wherein the pressing plate sliding mechanism is disposed at the center of the bottom end of the pressing plate fixing frame and perpendicular to the main plane of the pressing plate.

8. The multifunctional scanner as claimed in claim 7, wherein the scanner further comprises a pair of guiding mechanisms disposed at two outer sides of the pressing plate sliding mechanism, the guiding mechanisms comprise a sliding block connected to the pressing plate fixing frame and a sliding rail disposed on the rotating plate, and the sliding block is slidably disposed on the sliding rail.

9. The multifunctional scanner as claimed in claim 3, wherein the housing has a width and length dimension of no more than 1.5 m.

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