Mammary gland positioning component and mammary gland positioning device

Abstract

The utility model relates to the technical field of medical instruments, in particular to a mammary gland positioning component and a mammary gland positioning device, which comprise a base body a and a base body b conforming to the shape of a breast, the base body a is larger than the base body b and covers the base body b, adsorption rings for adsorbing the breast are arranged on the bottom surfaces of the base body a and the base body b, and a cavity is enclosed by the adsorption rings, the inner surface of the base body a and the outer surface of the base body b. The top face of the base body a is in sealed threaded connection with a negative pressure sleeve communicated with the cavity, a sealing cover is arranged on the negative pressure sleeve, a piston is arranged in the negative pressure sleeve, a piston shaft movably penetrating through the sealing cover is arranged on the piston, and an adjusting nut which abuts against and is matched with the top face of the sealing cover to lock the position of the piston is in threaded connection with the piston shaft. According to the breast suction device, the piston in the negative pressure sleeve can be driven to move by pulling the piston shaft, so that air in the cavity is extracted to generate negative pressure, the suction ring can tightly suck and fix the breast, the position of the piston shaft can be locked by the adjusting nut a, and then the suction force is finely adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a breast positioning component and a breast positioning device. Background Technique

[0002] In the field of breast cancer treatment, for early breast cancer patients, breast-conserving surgery combined with radiotherapy has become a common and effective treatment plan, which aims to preserve the general shape of the patient's breast and improve the patient's quality of life. However, while radiotherapy kills cancer cells, it may also damage the surrounding normal tissues. Therefore, precise positioning and irradiation techniques are crucial.

[0003] In the process of radiotherapy for breast cancer, positioning is the primary step. Through the breast positioning component and the breast positioning device, doctors can accurately adsorb and lift the breast tissue covering the chest wall, so as to ensure that the tumor area is far away from the heart and lung areas. Subsequently, through CT scanning, the position and size of the tumor are accurately determined. Then, doctors delineate the target area and the normal tissues to be protected, formulate a detailed treatment plan, and perform the treatment after verification. At present, most breast positioning components generally adsorb the breast through a matrix similar to the shape of the breast. However, since there is no seal on both sides of the adsorption part, it is easy to generate gaps, resulting in the problem of unstable adsorption. Moreover, the adsorption method uses a complex air pump and hose system for adsorption, which not only increases the operation difficulty but also raises the production cost, and is not conducive to its wide application in clinical practice. Content of the Utility Model

[0004] The purpose of the utility model is to provide a breast positioning component and a breast positioning device, which can pull the piston shaft to extract the air in the cavity to generate negative pressure, so that the adsorption ring can adsorb and fix the breast.

[0005] The above-mentioned utility model purpose of the utility model is achieved through the following technical solutions: The breast positioning component includes a matrix a and a matrix b conforming to the shape of the breast. The matrix a is larger than the matrix b and covers the upper part of the matrix b. A cavity for adsorbing the breast is jointly fixed on the bottom surfaces of the matrix a and the matrix b. The adsorption ring is jointly enclosed by the inner surface of the matrix a and the outer surface of the matrix b. The top surface of the matrix a is hermetically screwed with a negative pressure sleeve communicated with the cavity. A sealing cover is fixedly arranged on the other end surface of the negative pressure sleeve. A piston is slidably arranged inside the negative pressure sleeve. A piston shaft fixedly connected to the piston movably penetrates through the sealing cover. One end of the piston shaft located outside the negative pressure sleeve is integrally formed with a piston handle. An adjusting nut a is screwed on the piston shaft and abuts against the top surface of the sealing cover to lock the position of the piston.

[0006] Optionally, the cross-section of the piston shaft is in a cross shape, and a threaded section a composed of a set of mutually matching threads is provided on four sides of the piston shaft along its length direction. The threaded section a is in screw-threaded fit with the adjusting nut a.

[0007] Optionally, the diameter of the adsorption ring is larger than the areola and smaller than the breast, and the adsorption surface of the adsorption ring has an inclined surface conforming to the breast. Annular grooves are symmetrically formed on the adsorption surface of the adsorption ring. Annular adhesive tapes for sealing the adsorption surface are arranged in both of the two annular grooves. Between the two annular adhesive tapes, adsorption holes communicating with the cavity are uniformly arranged on the adsorption surface of the adsorption ring.

[0008] Optionally, an areola patch is arranged on the inner surface of the matrix b, and a round hole for exposing the nipple is provided in the middle of the areola patch.

[0009] The breast positioning device includes a collar and also includes the above-mentioned breast positioning component. The collar is fixedly sleeved on the outer periphery of the top of the matrix a, and an L-shaped pull rod is welded on the outer periphery of the collar. A threaded section b is formed on the outer periphery of the top of the pull rod, and a horizontally arranged square tube movably penetrates through the top end of the pull rod. Openings are arranged on both sides of the pull rod on the square tube, and adjusting nuts b screwed with the threaded section b are arranged in the openings. A limiting notch is cut along the axial direction at the top end of the pull rod. The length of the limiting notch is equal to the length of the threaded section b, and an H-shaped limiting block fixedly connected with the top surface of the square tube is arranged in the limiting notch.

[0010] Optionally, a nut seat is fixedly connected to one end of the square tube away from the pull rod. A support plate is arranged below the nut seat. A lead screw for driving the nut seat to move back and forth is arranged on the support plate. The two ends of the lead screw are rotatably matched with fixed seats. A linear slide rail fixed on the support plate is arranged between the two fixed seats. The slide block on the linear slide rail is fixedly connected with the nut seat. One end of the lead screw extends out of the fixed seat and is fixedly connected with a hand wheel.

[0011] Optionally, I-shaped legs are fixedly arranged at both ends of the bottom surface of the support plate, and universal wheels are arranged at both ends of the bottom surfaces of the two legs.

[0012] Compared with the prior art, the present utility model provides a breast positioning component and a breast positioning device, which have the following beneficial effects:

[0013] 1. By pulling the piston shaft, the piston in the negative pressure sleeve can be driven to move in the present utility model, so as to extract the air in the cavity to generate negative pressure, enabling the adsorption ring to tightly adsorb and fix the breast. The adjusting nut a can lock the position of the piston shaft, thereby finely adjusting the adsorption force, which not only ensures the stable fixation of the breast, but also has simple operation and is convenient for wide promotion and application in the medical field;

[0014] 2. The utility model effectively seals the adsorption surface of the adsorption ring by arranging two annular adhesive tapes on the adsorption surface of the adsorption ring, reduces the risk of air leakage, maintains a stable negative pressure state, ensures that the breast is tightly adsorbed and fixed, and further improves the stability when adsorbing the breast. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a partial sectional view schematic diagram of the breast positioning component of the utility model;

[0016] Figure 2 It is an overall structure schematic diagram of the breast positioning component of the utility model;

[0017] Figure 3 It is an overall structure schematic diagram of the utility model;

[0018] Figure 4 is Figure 3 a partial enlarged schematic diagram of part A in

[0019] In the figure: 1, base a; 2, base b; 3, adsorption ring; 301, annular adhesive tape; 302, adsorption hole; 4, cavity; 5, negative pressure sleeve; 6, cover; 7, piston; 8, piston shaft; 9, piston handle; 10, threaded section a; 11, adjusting nut a; 12, areola patch; 13, collar; 14, pull rod; 15, threaded section b; 16, square tube; 17, opening; 18, adjusting nut b; 19, limiting notch; 20, H-shaped limiting block; 21, nut seat; 22, support plate; 23, lead screw; 24, fixed seat; 25, linear slide rail; 26, hand wheel; 27, leg; 28, universal wheel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0021] Embodiment: Please refer to Figure 1 and Figure 2, a breast positioning component, including a base body a1 and a base body b2 that conform to the shape of the breast. The base body a1 is larger than the base body b2 and covers the upper part of the base body b2. A suction ring 3 for adsorbing the breast is fixedly connected to the bottom surfaces of the base body a1 and the base body b2. A cavity 4 is enclosed by the inner surface of the base body a1, the outer surface of the base body b2, and the suction ring 3. The diameter of the suction ring 3 is larger than the areola and smaller than the breast, and the suction surface of the suction ring 3 has an inclined surface that conforms to the breast. Annular grooves are symmetrically arranged on the suction surface of the suction ring 3. Annular adhesive tapes 301 for sealing the suction surface are arranged in both annular grooves. Between the two annular adhesive tapes 301, suction holes 302 communicating with the cavity 4 are evenly arranged on the suction surface of the suction ring 3. The top surface of the base body a1 is hermetically screwed with a negative pressure sleeve 5 communicating with the cavity 4. A cover 6 is fixedly arranged on the other end surface of the negative pressure sleeve 5. A piston 7 is slidably arranged inside the negative pressure sleeve 5. A piston shaft 8 that movably penetrates the cover 6 is fixedly connected to the piston 7. A piston handle 9 is integrally formed at one end of the piston shaft 8 located outside the negative pressure sleeve 5. An adjusting nut a11 that abuts and cooperates with the top surface of the cover 6 to lock the position of the piston 7 is screwed on the piston shaft 8. The cross-section of the piston shaft 8 is in a cross structure. A threaded section a10 composed of a set of mutually cooperating threads is arranged on four side surfaces of the piston shaft 8 along its length direction. The threaded section a10 is screwed and cooperated with the adjusting nut a11. Further, by setting the piston shaft into a cross structure, the circumferential shaking of the piston shaft 8 can be prevented, and it is more stable during pulling. When the piston shaft 8 is pulled, the piston 7 inside the negative pressure sleeve 5 can be driven to move, so as to extract the air in the cavity 4 to generate negative pressure. This negative pressure effect enables the suction ring 3 to tightly adsorb and fix the breast. In order to further enhance the airtightness of the suction ring 3, two annular adhesive tapes 301 are arranged on the suction surface of the suction ring 3. In addition, the adjusting nut a11 screwed with the threaded section a10 can lock the position of the piston shaft, and further fine-tune the adsorption force, achieving a more stable and reliable breast fixation effect.

[0022] An areola patch 12 is arranged on the inner surface of the base body b2. A round hole for exposing the nipple is arranged in the middle of the areola patch 12. Further, by arranging the areola patch 12, the inner surface of the base body b2 not only provides extra comfort for the breast, but also significantly enhances the stability and fitting property of the breast positioning component.

[0023] Please refer to Figure 3 and Figure 4The breast positioning device includes a ring 13 and the above-mentioned breast positioning component. The ring 13 is fixedly sleeved on the top periphery of the base a1, and an L-shaped pull rod 14 is welded to the outer periphery of the ring 13. A threaded section b15 is provided on the top periphery of the pull rod 14, and a horizontally arranged square tube 16 is movably penetrated through the top of the pull rod 14. Openings 17 are provided on both sides of the square tube 16. An adjusting nut b18 threadedly connected to the threaded section b15 is provided in the opening 17. A limiting notch 19 is cut at the top of the pull rod 14 along its axial direction. The length of the limiting notch 19 is equal to the length of the threaded section b15, and an H-shaped limiting block 20 fixedly connected to the top surface of the square tube 16 is provided in the limiting notch 19. The end of the square tube 16 away from the pull rod 14 is fixedly connected to A nut seat 21 is provided with a support plate 22 below the nut seat 21, and a screw rod 23 for driving the nut seat 21 to move back and forth is provided on the support plate 22. Both ends of the screw rod 23 are rotatably matched with fixed seats 24. A linear slide rail 25 fixed on the support plate 22 is provided between the two fixed seats 24. The slider on the linear slide rail 25 is fixedly connected to the nut seat 21. One end of the screw rod 23 extends out of the fixed seat 24 and is fixedly connected to the handwheel 26. Furthermore, since the pull rod 14 is fixedly connected to the breast positioning component that fixes the breast through the collar 13, the pull rod 14 can be screwed and raised or lowered by rotating the adjustment nut b18. The pull rod 14 can pull the breast away from the chest wall by rising, effectively reducing the irradiation area of ​​​​radiation to sensitive areas such as the heart and lungs. Figure 3 As shown, a square rod fixedly connected to the nut seat 21 is inserted into the interior of the square tube 16 at one end away from the pull rod 14, and a hand-tightening nut for locking the square rod is screwed onto the outside of the square tube 16. Therefore, the square tube 16 can be extended and retracted and locked by the hand-tightening nut, which is convenient for personalized adjustment according to the patient's lying position, and the function of the screw rod 23 and the nut seat 21 is the same as the former, which is used to assist alignment.

[0024] I-shaped legs 27 are fixedly provided at both ends of the bottom surface of the support plate 22, and universal wheels 28 are provided at both ends of the bottom surfaces of the two legs 27. Furthermore, the universal wheels 28 are universal wheels with rubber feet, which have stable support and reduce possible shaking during operation.

[0025] Working principle: During the use of the present utility model, first, push the device to the position where the patient lies (such as a radiotherapy bed), and ensure that the breast positioning component is directly above the patient's breast. Then, fix the feet of the universal wheel 28. Subsequently, rotate the adjusting nut b18 to drive the breast positioning component to descend. After the adsorption ring 3 fits the patient's breast, pull the piston handle 9 to extract the air in the cavity 4 to generate negative pressure, so that the adsorption ring 3 can tightly adsorb and fix the breast. During this process, the patient can be asked whether there is pain or discomfort, and the adjusting nut a11 can be rotated to finely adjust the adsorption force. After the breast positioning component is fixed, finally, rotate the adjusting nut b18 to lift the breast away from the chest wall, thereby reducing the irradiation area of sensitive areas such as the heart and lungs by radiation. It should be noted that the lead screw 23 and the nut seat 21 are used to assist in alignment adjustment. In actual operation, medical staff should flexibly judge whether it is necessary to use the lead screw 23 and the nut seat 21 for auxiliary alignment according to specific situations.

[0026] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0027] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. Breast positioning component, comprising a base a (1) and a base b (2) conforming to the shape of the breast, characterized in that: The substrate a (1) is larger than the substrate b (2) and covers the upper part of the substrate b (2). A suction ring (3) for sucking the breast is fixedly connected to the bottom surfaces of the substrate a (1) and the substrate b (2). A cavity (4) is enclosed by the inner surface of the substrate a (1), the outer surface of the substrate b (2), and the suction ring (3). A negative pressure sleeve (5) communicating with the cavity (4) is hermetically screwed to the top surface of the substrate a (1). A cover (6) is fixedly provided on the other end surface of the negative pressure sleeve (5). A piston (7) is slidably arranged inside the negative pressure sleeve (5). A piston shaft (8) fixedly connected to the piston (7) penetrates through the cover (6) movably. A piston handle (9) is integrally formed at one end of the piston shaft (8) outside the negative pressure sleeve (5). An adjusting nut a (11) that abuts against and cooperates with the top surface of the cover (6) to lock the position of the piston (7) is screwed on the piston shaft (8).

2. The breast positioning component according to claim 1, wherein: The cross-section of the piston shaft (8) is in a cross shape. A threaded section a (10) composed of a set of mutually cooperating threads is provided on the four side surfaces of the piston shaft (8) along its length direction. The threaded section a (10) is screwed and cooperated with the adjusting nut a (11).

3. The breast positioning component according to claim 1, characterized in that: The diameter of the suction ring (3) is larger than the areola and smaller than the breast. The suction surface of the suction ring (3) has an inclined surface conforming to the breast. Annular grooves are symmetrically formed on the suction surface of the suction ring (3). Annular adhesive tapes (301) for sealing the suction surface are arranged in both of the two annular grooves. Between the two annular adhesive tapes (301), suction holes (302) communicating with the cavity (4) are uniformly arranged on the suction surface of the suction ring (3).

4. The breast positioning component according to claim 1, characterized in that: An areola patch (12) is arranged on the inner surface of the substrate b (2). A round hole for exposing the nipple is provided in the middle of the areola patch (12).

5. Breast positioning device, including a collar (13), characterized in that: It further includes the breast positioning component according to any one of claims 1 - 3. A collar (13) is fixedly sleeved on the outer periphery of the top of the substrate a (1). An L-shaped pull rod (14) is welded on the outer periphery of the collar (13). A threaded section b (15) is formed on the outer periphery of the top of the pull rod (14). The top end of the pull rod (14) penetrates through a horizontally arranged square tube (16) movably. Openings (17) are provided on both sides of the pull rod (14) on the square tube (16). Adjusting nuts b (18) screwed with the threaded section b (15) are arranged in the openings (17). A limiting notch (19) is cut along the axial direction at the top end of the pull rod (14). The length of the limiting notch (19) is equal to the length of the threaded section b (15). An H-shaped limiting block (20) fixedly connected to the top surface of the square tube (16) is arranged in the limiting notch (19).

6. The breast positioning device according to claim 5, wherein: One end of the square tube (16) far from the pull rod (14) is fixedly connected with a nut seat (21). A support plate (22) is arranged below the nut seat (21). A lead screw (23) for driving the nut seat (21) to move back and forth is arranged on the support plate (22). The two ends of the lead screw (23) are rotationally matched with fixed seats (24). A linear slide rail (25) fixed on the support plate (22) is arranged between the two fixed seats (24). The slider on the linear slide rail (25) is fixedly connected with the nut seat (21). One end of the lead screw (23) extends out of the fixed seat (24) and is fixedly connected with a hand wheel (26).

7. The breast positioning device according to claim 6, wherein: Both ends of the bottom surface of the support plate (22) are fixedly provided with I-shaped legs (27). Universal wheels (28) are arranged at both ends of the bottom surfaces of the two legs (27).

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