Mammary gland molybdenum target examination traction compression positioning device
The automated traction and compression positioning device uses a suction cup and drive shaft to achieve stable traction and compression of the breast, solving the problem of tissue overlap caused by breast retraction in existing technologies, and improving the accuracy and image clarity of mammography.
Patent Information
- Application Number
- CN202511418145.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-30
- Publication Date
- 2025-12-23
AI Technical Summary
Existing mammography devices rely on manual stretching of the breast and placement on the examination table. This causes the hand to leave the breast when the translucent plate moves down, resulting in breast retraction and increased tissue overlap, which affects the accuracy of the examination results.
An automated traction and compression positioning device is used. The breast is attached by a suction cup and the drive shaft and traction mechanism are used to achieve stable traction and compression of the breast, ensuring that the breast remains in a traction state during the downward movement of the transparent plate and avoiding retraction.
It effectively avoids tissue overlap caused by breast retraction, ensuring that breast tissue remains stretched during examination, thus improving the accuracy of examination results and image clarity.
Smart Images
Figure CN121176933A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to a breast molybdenum target examination pulling and pressing positioning device. BACKGROUND
[0002] As one of the core imaging methods for clinical diagnosis of breast diseases, breast molybdenum target examination plays an irreplaceable role in early detection and accurate judgment of breast lesions due to its high-resolution imaging capability of breast soft tissue. With the continuous improvement of the accuracy requirement of medical diagnosis, the stability of breast positioning and the continuity of breast pulling during breast molybdenum target examination in the clinic are put forward with higher requirements, and the structure design and operation mode of the existing breast molybdenum target detection device have gradually exposed the problem of being difficult to meet the needs of clinical accurate diagnosis.
[0003] At present, the mainstream breast molybdenum target detection device on the market is usually composed of an examination table, a lifting driving mechanism and a transparent pressing plate, and its operation process needs to rely on medical staff to manually complete breast pulling and positioning: during examination, the patient needs to maintain a specific body position, the medical staff stretches the patient's breast to an expanded state with hands, and then places it flat on the specified imaging area of the examination table, and then drives the transparent pressing plate downward by controlling the lifting driving mechanism until the pressing plate exerts a preset pressure on the breast to realize tissue flattening, and finally completes image acquisition.
[0004] However, the existing breast molybdenum target detection device is mostly in the form of stretching the breast by hand and placing it on the examination table, and then controlling the transparent plate to move downward to flatten the breast, and the manual stretching form makes the hand need to leave the breast in advance during the downward movement of the transparent plate, which causes the breast to retract and easily increases the overlapping amount of tissue, affecting the accuracy of the examination results. In view of this, a breast molybdenum target examination pulling and pressing positioning device is proposed to solve the above problems. SUMMARY
[0005] In view of the deficiencies of the prior art, the present application provides a breast molybdenum target examination pulling and pressing positioning device to solve the technical problems of the existing breast molybdenum target detection device in the background art, which is mostly stretched by hand and placed on the examination table, and then the transparent plate is controlled to move downward to flatten the breast, and the manual stretching form makes the hand need to leave the breast in advance during the downward movement of the transparent plate, which causes the breast to retract and easily increases the overlapping amount of tissue, affecting the accuracy of the examination results.
[0006] To achieve the above purpose, the present application provides the following technical scheme, a breast molybdenum target examination pulling and pressing positioning device, comprising: a lifting table, the telescopic end of which is provided with an examination table and a mounting frame, and the mounting frame is provided with a transparent plate connected by a telescopic rod; A mounting seat is slidingly arranged on the examination table, a positioning frame is arranged on the mounting seat, a suction disc is slidingly arranged on the positioning frame, a piston rod is slidingly arranged in a piston cylinder arranged on one end of the suction disc, a driving shaft is rotatably and slidingly arranged on the mounting seat and connected with the piston rod through a driving unit to convert rotation of the driving shaft into sliding of the piston rod, and the driving shaft is disconnected from the piston rod when the transparent plate is pressed to a preset value. A suction disc is slidingly arranged on the positioning frame, a piston rod is slidingly arranged in a piston cylinder arranged on one end of the suction disc, a driving shaft is rotatably and slidingly arranged on the mounting seat and connected with the piston rod through a driving unit to convert rotation of the driving shaft into sliding of the piston rod, and the driving shaft is disconnected from the piston rod when the transparent plate is pressed to a preset value. A driving shaft is rotatably and slidingly arranged on the mounting seat and connected with the piston rod through a driving unit to convert rotation of the driving shaft into sliding of the piston rod, and the driving shaft is disconnected from the piston rod when the transparent plate is pressed to a preset value.
[0007] In a preferred embodiment, the driving unit comprises: A locking mechanism is arranged on the mounting seat and connected with the driving shaft to lock rotation of the driving shaft in one direction; A gear is rotatably arranged on the suction disc and slidingly sleeved on the driving shaft, a rack is arranged on the piston rod, and the rack is engaged with the gear; and An opening mechanism is arranged on the transparent plate and connected with the locking assembly to contact the one-way locking of the driving shaft when the transparent plate is pressed to a preset value.
[0008] In a preferred embodiment, the locking mechanism comprises: A first ratchet disc is fixedly arranged on the mounting seat; A second ratchet disc is slidingly arranged on the driving shaft and engaged with the first ratchet disc; and A first elastic member is arranged between the second ratchet disc and the mounting seat.
[0009] In a preferred embodiment, the opening mechanism comprises: A supporting plate is arranged at a telescopic end of the telescopic rod, the transparent plate is arranged on the bottom of the supporting plate and is connected with the supporting plate through a second elastic member; A stop ring is arranged between the first ratchet disc and the second ratchet disc and abuts against the second ratchet disc; An opening column is slidingly arranged on one side of the transparent plate and connected with the supporting plate through a linkage assembly, the linkage assembly drives the opening column to slide out of the transparent plate after the second elastic member is compressed by the supporting plate; and A baffle is slidingly sleeved on the positioning frame and rotatably connected with the driving shaft, the opening column abuts against the baffle when the transparent plate is lowered and the opening column is extended.
[0010] In a preferred embodiment, the linkage assembly comprises: a driving column arranged at the bottom of the supporting plate; and an inclined frame arranged on the opening column, and the driving column is slidingly arranged on the inclined frame.
[0011] In a preferred embodiment, a limiting plate is arranged inside the piston cylinder, and a third elastic member is arranged between the piston end of the piston rod and the limiting plate.
[0012] In a preferred embodiment, the two ends of the positioning frame are slidingly arranged on the two sides of the examination table.
[0013] In a preferred embodiment, the end of the suction disc is provided with a silica gel pad.
[0014] In a preferred embodiment, the pulling mechanism comprises: a mounting shaft rotatably arranged on the mounting frame, a winding wheel rotatably arranged on the mounting shaft, and the mounting seat and the winding wheel are connected through a pulling rope; a connecting shell fixedly arranged on the mounting shaft, and one side of the connecting shell is provided with a ratchet wheel; a helical spring, one end of which is fixedly connected with the connecting shell, and the other end is fixedly connected with the winding wheel; and a mounting frame arranged on the mounting frame, and a pawl is slidingly arranged, one end of the pawl is clamped on the ratchet wheel, and the other end is provided with a fourth elastic member between the pawl and the mounting frame.
[0015] In a preferred embodiment, a push rod is slidingly arranged on the mounting frame, a control column is arranged on the push rod, an inclined track is arranged on the pawl, one end of the inclined track is communicated with a horizontal rail, and the other end is communicated with a vertical rail, and the control column is clamped on the end of the inclined track.
[0016] Compared with the prior art, the present application has the following advantages: The device, in use, controls the lifting platform to lift so that the examination table moves to a suitable height, the patient places the breast on the examination table, and through the transverse sliding of the two groups of suction cups, the suction cups are adsorbed with the breast, and then through the rotation of the driving shaft, the piston rod is slid, so that the suction cups are in a negative pressure state to ensure the stable adsorption of the breast, the height of the suction cup is less than the minimum thickness of the spread breast during examination, so as to avoid the interference caused by the descent of the transparent plate, and the installation seat can be driven to slide on the examination table through the pulling mechanism on the mounting frame, so as to replace the traditional manual stretching mode, and avoid the problem that the breast loses the pulling support due to the hand needing to leave in advance in the manual operation. Then, the transparent plate is controlled to descend through the telescopic rod to compress the breast, and when the pressure borne by the transparent plate reaches a preset value, the driving unit is disconnected with the piston rod, so as to ensure that the pulling state can be kept during the whole process of the descent of the transparent plate and the gradual compression of the breast to the required degree, thereby effectively avoiding the increase of the overlapping amount of the breast tissue caused by the retraction of the breast, ensuring that the breast tissue is in an expanded and separated state during the breast molybdenum target examination, improving the accuracy of the examination result, making the image more clearly display the breast structure, and helping to more accurately find the lesion. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the specific embodiments of the present application, the drawings required in the specific embodiments will be briefly introduced below. In all the drawings, various elements or parts are not necessarily drawn according to the actual proportion.
[0018] Figure 1 A perspective view of a breast molybdenum target examination pulling and compressing positioning device provided by the present application; Figure 2 An installation structure diagram of a transparent plate in the breast molybdenum target examination pulling and compressing positioning device of the present application; Figure 3 An installation structure diagram of a suction cup in the breast molybdenum target examination pulling and compressing positioning device of the present application; Figure 2 An enlarged diagram of area A in FIG. 6; Figure 4 An installation structure diagram of a suction cup in the breast molybdenum target examination pulling and compressing positioning device of the present application; Figure 5 A connection structure diagram of an installation seat and a driving shaft in the breast molybdenum target examination pulling and compressing positioning device of the present application; Figure 6 A sectional view of a suction cup in the breast molybdenum target examination pulling and compressing positioning device of the present application; Figure 7 A structure diagram of a pulling mechanism in the breast molybdenum target examination pulling and compressing positioning device of the present application; Figure 8 An installation structure diagram of a suction cup in the breast molybdenum target examination pulling and compressing positioning device of the present application; Figure 7 An enlarged diagram of area A in FIG. 7.
[0019] Reference signs: 1, lifting platform; 2, inspection platform; 3, mounting frame; 4, telescopic rod; 5, supporting plate; 6, transparent plate; 7, opening column; 8, inclined frame; 9, driving column; 10, mounting seat; 11, first ratchet disc; 12, driving shaft; 13, blocking ring; 14, second ratchet disc; 15, first elastic member; 16, positioning frame; 17, baffle; 18, pull rope; 19, piston cylinder; 20, suction cup; 21, silica gel pad; 22, gear; 23, piston rod; 24, rack; 25, limiting plate; 26, third elastic member; 27, mounting shaft; 28, winding wheel; 29, connecting shell; 30, helical spring; 31, ratchet wheel; 32, mounting frame; 33, fourth elastic member; 34, inclined track; 35, flat rail; 36, vertical rail; 37, lever; 38, control column; 39, pawl; 40, second elastic member. DETAILED DESCRIPTION
[0020] It is necessary to point out here that the following detailed description is only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application according to the above application content.
[0021] Embodiment: As shown in Figure 1 , 2 , the present application provides a breast molybdenum target examination pulling and pressing positioning device, which comprises a lifting platform 1, the telescopic end of the lifting platform 1 is provided with an inspection platform 2 and a mounting frame 3, the mounting frame 3 is provided with a transparent plate 6 connected through a telescopic rod 4, when the device is used, the height of the inspection platform 2 can be adjusted through the lifting platform 1 to adapt to the height of different patients, which is convenient for the patient to place the breast on the inspection platform 2, and then the transparent plate 6 is controlled to descend through the telescopic rod 4 to press the breast, so that the breast tissue is in a uniform flat shape, which is convenient for subsequent X-ray examination.
[0022] As shown in Figure 1 , 4 , 5, 6, in this embodiment, a mounting seat 10 is slidingly arranged on the inspection platform 2, the mounting seat 10 is provided with a positioning frame 16, two groups of suction cups 20 are slidingly arranged on the positioning frame 16, one end of the suction cup 20 is provided with a piston cylinder 19, and a piston rod 23 is slidingly installed in the piston cylinder 19. The driving shaft 12 is rotatably and slidably arranged on the mounting seat 10, the driving shaft 12 and the piston rod 23 are connected through a driving unit, so as to convert the rotation of the driving shaft 12 into the sliding of the driving piston rod 23, and the connection between the driving shaft 12 and the piston rod 23 is released when the pressure on the transparent plate 6 reaches a preset value.
[0023] The drive unit includes a locking mechanism mounted on the mounting base 10 and connected to the drive shaft 12, which locks the rotation of the drive shaft 12 in one direction. The locking mechanism includes a first ratchet disc 11 fixedly mounted on the mounting base 10, a second ratchet disc 14 slidably mounted on the drive shaft 12, the second ratchet disc 14 meshing with the first ratchet disc 11, and a first elastic element 15 disposed between the second ratchet disc 14 and the mounting base 10.
[0024] After placing the breast on the examination table 2, the suction cup 20 is placed on the breast. The suction cup 20 can be moved laterally to slide on the drive shaft 12 and the positioning frame 16, which is convenient for patients with different breast spacing. A silicone pad 21 is provided at the end of the suction cup 20 to avoid damage to the breast and to increase the airtightness of the suction cup 20, so as to prevent the suction cup 20 from falling off during the subsequent suction and traction of the breast.
[0025] The second ratchet disc 14 can be rotated by rotating the drive shaft 12. The inclined surface of one side of the ratchet teeth and the first elastic element 15 ensure that the second ratchet disc 14 meshes with the first ratchet disc 11, thereby locking the position of the drive shaft 12 in one direction. A gear 22 is rotatably provided on the suction cup 20. The gear 22 is slidably sleeved on the drive shaft 12. A rack 24 is provided on the piston rod 23. The rack 24 meshes with the gear 22. During the rotation of the drive shaft 12, it can drive the gear 22 to rotate. Through the cooperation of the gear 22 and the rack 24, the piston rod 23 is driven to slide, so that the inside of the suction cup 20 is in a negative pressure state. Under the action of the locking mechanism, the drive shaft 12 is locked in one direction to prevent the piston rod 23 from resetting, thereby adsorbing and stretching the breast.
[0026] like Figures 2 to 5 As shown, in this embodiment, the drive unit further includes an opening mechanism disposed on the transparent plate 6 and connected to the locking assembly. The opening mechanism engages the one-way lock to lock the drive shaft 12 when the transparent plate 6 is subjected to pressure reaching a preset value. The opening mechanism includes a support plate 5 disposed at the telescopic end of the telescopic rod 4. The transparent plate 6 is movably disposed at the bottom of the support plate 5, and a second elastic element 40 is disposed between the transparent plate 6 and the support plate 5. A retaining ring 13 is disposed between the first ratchet disc 11 and the second ratchet disc 14, and the retaining ring 13 abuts against the second ratchet disc 14. An opening post 7 is slidably passed through one side of the transparent plate 6. The opening post 7 is connected to the support plate 5 through a linkage assembly. After the support plate 5 compresses the second elastic element 40, the linkage assembly drives the opening post 7 to slide out of the transparent plate 6. A baffle 17 is slidably sleeved on the positioning frame 16. The baffle 17 is rotatably connected to the drive shaft 12. When the transparent plate 6 descends, the opening post 7 extends and abuts against the baffle 17. The linkage component includes a drive column 9 located at the bottom of the support plate 5, and an inclined frame 8 on the opening column 7. The drive column 9 is slidably locked onto the inclined frame 8.
[0027] After the breast is stretched, the telescopic rod 4 is controlled to extend to drive the supporting plate 5 to descend, so that the transparent plate 6 descends to press the breast, after the transparent plate 6 contacts the breast, the supporting plate 5 continues to descend, the second elastic element 40 applies pressure to the transparent plate 6, and the relative motion between the supporting plate 5 and the transparent plate 6 is caused, so as to control the driving column 9 to slide on the inclined frame 8, the opening column 7 is controlled to extend out of the transparent plate 6 in the process of sliding of the driving column 9, when the compression amount of the second elastic element 40 reaches a certain value, the opening column 7 abuts against the baffle 17, drives the driving shaft 12 to slide transversely, and drives the second ratchet disc 14 to slide away from the first ratchet disc 11 through the retaining ring 13, that is, the position locking of the driving shaft 12 is released, so that the suction force of the suction cup 20 disappears and the suction cup 20 is separated from the breast. It can be understood that, in the embodiment, the preset value in the connection between the transparent plate 6 and the piston rod 23 is released when the pressure applied to the transparent plate 6 reaches a preset value, that is, the force applied to the transparent plate 6 by the second elastic element 40 when the suction force of the suction cup 20 disappears and the breast does not retract under the action of friction and pressure after the transparent plate 6 is pressed.
[0028] As shown in Figure 1 、 6 , in the embodiment, the inside of the piston cylinder 19 is provided with a limiting plate 25, and the third elastic element 26 is arranged between the piston end of the piston rod 23 and the limiting plate 25. After the one-way locking of the driving shaft 12 is released, the piston rod 23 can be quickly reset under the action of the third elastic element 26, so as to ensure that the suction force is released and the suction cup 20 is prevented from being adsorbed on the breast to affect the subsequent examination. The two ends of the positioning frame 16 are respectively slidably clamped on the two sides of the examination table 2, so as to improve the stability of the internal structure of the device, and facilitate the resetting of the mounting seat 10 and the suction cup 20 after sliding, so as to facilitate the subsequent examination work.
[0029] As shown in Figure 1 、 4 , 7, 8, in the embodiment, the mounting frame 3 is provided with a pulling mechanism for driving the mounting seat 10 to slide, the pulling mechanism comprises a mounting shaft 27 rotatably arranged on the mounting frame 3, a winding wheel 28 rotatably arranged on the mounting shaft 27, the winding wheel 28 being connected with the mounting seat 10 through the pull rope 18, a connecting shell 29 fixedly arranged on the mounting shaft 27, a ratchet wheel 31 arranged on one side of the connecting shell 29, a helical spring 30 having one end fixedly connected with the connecting shell 29 and the other end fixedly connected with the winding wheel 28, a mounting frame 32 arranged on the mounting frame 3, and a ratchet pawl 39 slidably arranged on the mounting frame 32, one end of the ratchet pawl 39 being clamped on the ratchet wheel 31 and the other end being provided with the fourth elastic element 33 between the mounting frame 32.
[0030] After the breast is adsorbed by the suction cup 20, the connecting shell 29 can be driven to rotate by rotating the mounting shaft 27, the connecting shell 29 can drive the winding wheel 28 to rotate by the elastic force of the spiral spring 30 in the process of rotation, the winding wheel 28 can wind the pull rope 18 to drive the mounting seat 10 to slide in the process of rotation, so as to drive the suction cup 20 to slide, the breast is pulled, the overlapping of the breast compression tissue is reduced, and when the breast is stretched to the limit position, the mounting shaft 27 is continuously rotated, the spiral spring 30 is controlled to be deformed, and the position of the mounting shaft 27 is one-way locked by the cooperation of the ratchet wheel 31 and the pawl 39, so as to prevent the breast from retracting. When the position of the driving shaft 12 is unlocked, the suction cup 20 is separated from the breast, and the winding wheel 28 is controlled to rotate to continue winding the pull rope 18 under the reset ability of the spiral spring 30, so that the suction cup 20 quickly leaves the examination area, avoids interference on the examination, and does not need to manually control the movement of the suction cup 20, thereby improving the efficiency of the examination, and when the suction cup 20 is separated, the pressure between the transparent plate 6 and the breast reaches the preset value, the doctor can control the telescopic rod 4 to retract to avoid the breast of the patient being pressed under the premise of ensuring the pressing strength.
[0031] As shown in Figure 7 , 8 In the embodiment, the push rod 37 is slidably arranged on the mounting frame 32, the control column 38 is arranged on the push rod 37, the inclined track 34 is arranged on the pawl 39, one end of the inclined track 34 is communicated with the horizontal rail 35, the other end is communicated with the vertical rail 36, and the control column 38 is clamped on the end of the inclined track 34. In the process of rotating the ratchet wheel 31, the pawl 39 is pushed to slide by the ratchet, the sliding of the pawl 39 is avoided by arranging the horizontal rail 35, the push rod 37 can be pushed downward, the pawl 39 is controlled to be separated from the ratchet wheel 31 under the cooperation of the control column 38 and the inclined track 34, the position of the mounting shaft 27 is unlocked, the suction cup 20 is conveniently reset, the control column 38 can be slid into the vertical rail 36 to fix the position of the pawl 39, the pawl 39 is reset after the suction cup 20 is reset, and the push rod 37 does not need to be pushed for a long time.
[0032] The specific use mode and beneficial effects of the present application are as follows: In use, the device controls the lifting platform 1 to lift so that the examination table 2 moves to a suitable height, the patient places the breast on the examination table 2, and through the lateral sliding of the two groups of suction cups 20, the suction cups 20 are adsorbed with the breast, then through the rotation of the driving shaft 12 to make the piston rod 23 slide, the suction cups 20 are in a negative pressure state to ensure the stable adsorption of the breast, the height of the suction cups 20 is less than the minimum thickness of the spread breast in examination, so as to avoid the interference caused by the lowering of the transparent plate 6, and the mounting seat 10 can be driven to slide on the examination table 2 through the pulling mechanism on the mounting frame 3, the breast is stretched, instead of the traditional manual stretching method, and the problem that the breast loses the pulling support due to the hands needing to leave in advance in manual operation is avoided. Then the transparent plate 6 is controlled to lower through the telescopic rod 4 to compress the breast, when the pressure borne by the transparent plate 6 reaches a preset value, the driving unit is disconnected with the piston rod 23, so as to ensure that the pulling state can be kept during the whole process that the transparent plate 6 moves downward and gradually forms compression to the breast, until the compression reaches the required degree, thereby effectively avoiding the increase of the overlapping amount of breast tissue caused by the retraction of the breast, ensuring that the breast tissue is in an expanded and separated state during the mammography examination, improving the accuracy of the examination result, making the image more clearly display the breast structure, and helping to more accurately find the lesion.
[0033] The basic principle and main features of the present application and the advantages of the present application are shown and described above, and it is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and some modifications or improvements can be made on the basis of the present application, which is obvious for those skilled in the art. Therefore, these modifications or improvements made on the basis of not deviating from the spirit of the present application, all belong to the scope of protection claimed by the present application.
Claims
1. A traction and compression positioning device for mammography, characterized in that, Including: The lifting platform (1) has an inspection table (2) and a mounting frame (3) at its telescopic end. The mounting frame (3) is provided with a transparent plate (6) connected by a telescopic rod (4). Mounting base (10) is slidably mounted on the inspection table (2). The mounting frame (3) is provided with a pulling mechanism for driving the mounting base (10) to slide. The mounting base (10) is provided with a positioning frame (16). Two sets of suction cups (20) are arranged at intervals and are slidably mounted on the positioning frame (16). A piston cylinder (19) is provided at one end of each suction cup (20), and a piston rod (23) is slidably mounted inside the piston cylinder (19). The drive shaft (12) is rotatably and slidably mounted on the mounting base (10) and connected to the piston rod (23) via a drive unit to convert the rotation of the drive shaft (12) into driving the piston rod (23) to slide, and disconnects from the piston rod (23) when the transparent plate (6) is subjected to pressure reaching a preset value.
2. The mammography traction and compression positioning device according to claim 1, characterized in that, The driving unit includes: A locking mechanism is provided on the mounting base (10) and connected to the drive shaft (12) to lock the rotation of the drive shaft (12) in one direction. The gear (22) is rotatably mounted on the suction cup (20) and slidably mounted on the drive shaft (12). The piston rod (23) is provided with a rack (24), which meshes with the gear (22). and An opening mechanism is provided on the transparent plate (6) and connected to the locking assembly to engage the one-way lock to lock the drive shaft (12) when the transparent plate (6) is subjected to pressure reaching a preset value.
3. The mammography traction and compression positioning device according to claim 2, characterized in that, The locking mechanism includes: The first ratchet disc (11) is fixedly mounted on the mounting base (10); The second ratchet disc (14) is slidably disposed on the drive shaft (12) and meshes with the first ratchet disc (11); and The first elastic element (15) is disposed between the second ratchet disc (14) and the mounting base (10).
4. The mammography traction and compression positioning device according to claim 3, characterized in that, The opening mechanism includes: The support plate (5) is provided at the telescopic end of the telescopic rod (4), and the transparent plate (6) is provided at the bottom of the support plate (5) in a liftable manner, and a second elastic element (40) is provided between the support plate (5) and the support plate (5). A retaining ring (13) is disposed between the first ratchet disc (11) and the second ratchet disc (14) and abuts against the second ratchet disc (14); An opening post (7) is slidably inserted through one side of the transparent plate (6) and connected to the support plate (5) via a linkage assembly. The linkage assembly drives the opening post (7) to slide out of the transparent plate (6) after the support plate (5) compresses the second elastic element (40). The baffle (17) is slidably sleeved on the positioning frame (16) and rotatably connected to the drive shaft (12). When the transparent plate (6) is lowered, the opening column (7) extends and abuts against the baffle (17).
5. A mammography traction and compression positioning device according to claim 4, characterized in that, The linkage components include: Drive column (9) is disposed at the bottom of the support plate (5); and An inclined frame (8) is set on the opening column (7), and the driving column (9) is slidably locked on the inclined frame (8).
6. The mammography traction and compression positioning device according to claim 1, characterized in that: A limiting plate (25) is provided on the inner side of the piston cylinder (19), and a third elastic element (26) is provided between the piston end of the piston rod (23) and the limiting plate (25).
7. The mammography traction and compression positioning device according to claim 1, characterized in that: The two ends of the positioning frame (16) are respectively slidably locked onto both sides of the inspection table (2).
8. A mammography traction and compression positioning device according to claim 1, characterized in that: A silicone pad (21) is provided at the end of the suction cup (20).
9. A mammography traction and compression positioning device according to claim 1, characterized in that, The pulling mechanism includes: Mounting shaft (27) is rotatably mounted on mounting frame (3). A winding wheel (28) is rotatably mounted on mounting shaft (27). The winding wheel (28) is connected to mounting base (10) via pull rope (18). The connecting shell (29) is fixedly mounted on the mounting shaft (27), and a ratchet (31) is provided on one side of it. A helical spring (30) is fixedly connected at one end to the connecting shell (29) and at the other end to the winding reel (28); and The mounting frame (32) is set on the mounting bracket (3) and has a slidably arranged pawl (39). One end of the pawl (39) is locked on the ratchet (31), and the other end is provided with a fourth elastic element (33) between it and the mounting frame (32).
10. A mammography traction and compression positioning device according to claim 9, characterized in that: The mounting frame (32) has a sliding lever (37) that can be raised and lowered. The lever (37) is equipped with a control post (38). The pawl (39) is equipped with a slanted track (34). One end of the slanted track (34) is connected to a horizontal track (35), and the other end is connected to a vertical track (36). The control post (38) is engaged at the end of the slanted track (34).