CN107913473B

CN107913473B - Mammary gland positioning component and mammary gland positioning device

Info

Publication number: CN107913473B
Application number: CN201711049722.6A
Authority: CN
Inventors: 朱远湖; 张红志
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-10-31
Filing date: 2017-10-31
Publication date: 2024-02-06
Anticipated expiration: 2037-10-31
Also published as: CN107913473A

Abstract

The invention discloses a mammary gland positioning component and a mammary gland positioning device. Because the air suction structure is arranged on the base body of the mammary gland positioning part, the mammary gland positioning part can be tightly fixed on the breast through the air suction effect of the air suction structure, the base body is simple in structure and convenient to operate; meanwhile, as the cavity for fixing the sucked mammary gland is also arranged on the basal body, the mammary gland can be stably fixed; the breast positioning component sucks the breast of a patient, the patient can keep the diseased breast away from the heart and lung without adopting a prone posture, the damage of rays to normal heart and lung tissues during radiotherapy is reduced, and the sequelae of radiotherapy is reduced.

Description

Mammary gland positioning component and mammary gland positioning device

Technical Field

The invention relates to a medical instrument, in particular to a mammary gland positioning component and a mammary gland positioning device.

Background

The radiation therapy is based on the principle that the chromosome of cells can be destroyed when the cells are irradiated by rays so as to inhibit and kill the cells, and the purpose of inhibiting and killing the cancer cells is achieved by irradiating the cancer cells by rays.

Radiation therapy generally comprises the following major procedures: positioning, target delineation, planning, plan verification, and treatment (typically multiple treatments). In the treatment process, the affected part of the patient is irradiated by rays, and cancer cells are restrained and killed by irradiation of rays, so that the purpose of curing the patient is achieved. However, since the principle of radiation inhibition and killing of cancer cells is achieved by destroying chromosomes of cells, when radiation irradiates a patient's non-affected part, normal cells of the patient are killed, and normal tissues or organs of the patient are damaged, i.e., side effects of radiation therapy occur.

Breast cancer is the most common tumor in women and is increasingly younger. In the past, breast cancer treatment is generally performed by breast total excision. The current medical authorities state that: the breast protection operation (partial excision, breast general shape preservation) +radiotherapy of the early breast cancer patients is approximately equal to the radical breast cancer operation (total mastectomy on the affected side), namely for the early breast cancer patients, the treatment effect obtained by adopting the combined treatment mode of the breast protection operation and the radiotherapy is equivalent to the treatment effect obtained by adopting the radical breast cancer operation.

In view of the fact that breast cancer is the most common female tumor, and the patient is younger, in order to ensure the postoperative life quality of the patient, most females choose the breast-protecting operation, so it is important to improve the treatment quality of radiotherapy, that is, high accuracy and few side effects are required in breast cancer radiotherapy.

In order to increase the control rate of tumors, part of the lung tissues at the affected side can be irradiated inevitably in the breast cancer radiotherapy process, if the affected side is left, part of heart tissues can be irradiated, the size of the side reaction of cardiopulmonary radiotherapy is related to the irradiated volume and dose, the side effect of radiotherapy is large if the volume is large and the dose is high, and in order to ensure the high dose of a tumor area, the dose is not advisable, so that the tumor area can be kept away from the cardiopulmonary as far as possible, the irradiated volume of the cardiopulmonary is reduced, and the side effect of breast cancer radiotherapy is reduced.

The breast cancer radiotherapy adopts a supine position and a prone position.

For this reason, chinese patent No. 201620564070.4 discloses a mammary gland positioning system, this system includes a locating rack bed board that the level set up, installs a plurality of slide rails that interval in proper order and vertically set up on the locating rack bed board, and the slide rail is gone up to slide and is equipped with a foundation pad of lying prone, and the first membrane fixer of head is installed to foundation pad left end of lying prone, and a wedge pad is installed to the first membrane fixer upper end, installs a headrest of lying prone on the wedge pad, and foundation pad mid-mounting of lying prone has a mammary gland pad that is used for the human body to lie prone, and at least one breast locating hole that is used for placing the breast is seted up to the front end of mammary gland pad. The breast positioning hole is formed in the front end of the breast pad, and is convenient for positioning the sagged breast, so that the problem that normal breast tissues are excessively damaged due to the fact that the breast cannot be accurately positioned when the breast is treated in the prior art is solved.

In addition, chinese patent No. 200820214308.6 also discloses a breast positioning device including a support plate for supporting a human body, a breast positioning through hole being opened in the support plate, and a breast of the human body naturally hanging through the breast positioning through hole when the human body is prone on the support plate. When the breast positioning device is used for radiotherapy, the movement of the breast along with the respiration and other factors is reduced through the arranged breast positioning through holes, the damage of radioactive rays to healthy tissues is reduced on the premise of guaranteeing the treatment effect, meanwhile, the focus on the breast can be positioned more accurately, and the structure of the radiotherapy device is simplified.

However, the breast positioning system and the breast positioning device are required to adopt prone positions in the application process, so that the breast is hung down and concentrated, and the purpose of keeping a tumor area away from heart and lung can be achieved. However, prone position suffers from a number of disadvantages: 1. the prone position causes that the breasts of the patient cannot be completely presented in the visual field range of the medical staff, is inconvenient to repeatedly swing, and cannot well ensure the high precision of radiotherapy; 2. compared with the supine position, the prone position has low comfort level, so that the amplitude and probability of involuntary movement of the body of the patient are increased; 3. prone position is more suitable for patients with bigger breasts, and national breasts are generally smaller due to race reasons. So the prone position is not obvious and is not preferable.

The patient can sit in the supine position, the repeated positioning accuracy is high, the comfort level is high, and the moving amplitude and probability of the patient are reduced. However, the supine position can lead breast tissues to be paved on the chest wall and can not be concentrated, and the traditional supine position does not take any measure to lead a tumor area to be far away from heart and lung, so that the irradiation volume of heart and lung can not be reduced, and the radiotherapy effect of breast cancer is limited.

Disclosure of Invention

According to one aspect of the present invention, there is provided a breast positioning member capable of being sucked onto a breast and fixing the breast, the breast positioning member being simple in structure and convenient to operate; meanwhile, the mammary gland of the patient is sucked up through the mammary gland positioning component, the patient can keep the diseased mammary gland away from the heart and lung without adopting a prone position, and the damage of rays to normal heart and lung tissues during radiotherapy is reduced.

The mammary gland positioning component comprises a base body, wherein an air suction structure for sucking up mammary glands is arranged on the base body, and a cavity for fixing the sucked-up mammary glands is formed in one surface of the base body facing the mammary glands.

Because the air suction structure is arranged on the base body of the mammary gland positioning part, the mammary gland positioning part can be tightly fixed on the breast through the air suction effect of the air suction structure, the base body is simple in structure and convenient to operate; meanwhile, the cavity for fixing the sucked mammary gland is also arranged on the basal body, so that the mammary gland can be stably fixed.

When the mammary gland positioning component is used for positioning the mammary gland of a patient, the patient can adopt a supine posture, so that the mammary gland positioning component can conveniently position the mammary gland, and when the mammary gland positioning component is placed on the breast of the patient, the mammary gland of the patient is accommodated in the cavity of the matrix; then, the breast of the patient is sucked up through the suction structure arranged on the basal body, so that the breast positioning component is fixed on the breast of the patient; then, when the mammary gland positioning part is moved in a direction away from the heart and lung of the patient, the mammary gland positioning part brings the mammary gland of the patient away from the heart and lung of the patient, and the mammary gland positioning part is fixed at a position away from the heart and lung of the patient, at this time, radiation rays irradiated to the cancerous breast of the patient are also away from the heart and lung of the patient, so that the damage of the radiation rays to normal heart and lung tissues is reduced, and the sequelae of radiation treatment is reduced.

In some embodiments, the suction structure of the base includes a suction port disposed on a side of the base facing the breast and a suction port disposed on a side of the base facing away from the breast, and the suction port communicates with the suction port. The air suction structure comprises an air suction port and an air suction port, and can be connected with air suction equipment such as an air pump and the like through the air suction port, the air pump is started, the air suction structure presents a negative pressure state under the air suction action of the air pump, the suction force of the air suction port of the air suction structure to the mammary gland is improved, the mammary gland positioning part can be stably and reliably fixed on the mammary gland through the air suction structure of the matrix, and the mammary gland is fixed in the cavity; when the mammary gland positioning part is required to be taken down from the breast, the air pump is closed, and the mammary gland positioning part and the air pump are detached, or the air pump is adopted to inflate the air suction structure, so that the air pressure in the air suction structure is increased, and the mammary gland positioning part can be taken down from the breast, and the operation is convenient.

In some embodiments, the substrate is configured to include a disc surface and a protruding portion, the cavity is formed in the middle of the disc surface, the air inlets are uniformly distributed on the circumferential edge of the disc surface, and the air inlet interface is formed on the protruding portion. Therefore, on the basis of regular shape of the disc, the suction force of the matrix is uniform through the suction ports uniformly arranged on the circumferential edge of the disc surface, and the matrix is not easy to fall off from the breast when the matrix is used for fastening; the cavity is arranged in the middle of the disk surface, the air inlets are uniformly distributed on the circumferential edge of the disk surface, and when the base body is fixed on the breast through the air inlets, the breast can be fixed in the cavity.

In some embodiments, the device further comprises a positioning assembly comprising a positioning surface for covering the cavity, the positioning assembly being removably coupled to the base. Therefore, for different patients, the positioning assembly can be replaced, so that cross infection is avoided, and the health of the patients is ensured; meanwhile, as the positioning surface of the positioning component is covered on the cavity of the base body, when the breast positioning component is sucked on the breast, the positioning surface of the positioning component can be tightly attached on the breast, and the breast positioning component can be more stably fixed on the breast.

In some embodiments, the locating surface has an adhesive property. Because the positioning component is detachably connected with the matrix, when the positioning component is not connected with the matrix, the positioning surface with viscosity of the positioning component can be stuck on the breast and cannot shift and fall off, so that the positioning component is convenient to connect with the matrix; when the mammary gland positioning component is used for positioning the mammary gland of a patient and the positioning component is not connected with the matrix, firstly, the mammary gland is initially positioned through the positioning component, and then the positioning surface of the positioning component is stuck on the breast, so that the positioning component cannot move or move relative to the breast, and the operation is convenient; in order to ensure that the positions of the breast positioning components fixed on the breast are consistent in the three processes of positioning, verifying and treating, the positioning components are stuck on the breast and are not connected with the base body in the positioning process, the sticking positions of the positioning components are marked on the breast, then the base body is connected with the positioning components, an air suction interface of the base body is connected with an air pump, and the breast positioning components are fixed on the breast under the air suction action of the air pump; when the breast positioning components in the verification process and the treatment process are required to be fixed at the positions which are consistent with the positions of the breast positioning components in the positioning process, the positioning surfaces of the positioning components which are not connected with the base body are stuck on the breast according to the positions marked on the breast in the positioning process, then the positioning components are connected with the base body, and then the air suction interface on the base body is connected with the air pump, and the air pump is started to suck air, so that the fixed positions of the breast positioning components in the verification process and the treatment process on the breast are consistent with the fixed positions of the breast positioning components in the positioning process on the breast, and the accuracy of repeated positioning of the breast positioning components for many times is ensured.

According to another aspect of the invention, there is provided a breast positioning device capable of lifting a breast, wherein a support in the breast positioning device supports a breast positioning part, so that the breast positioning part lifts the breast and is positioned far away from the heart and lung of a patient, and the support supports the breast positioning part without manual support, and the breast positioning device has a simple structure and convenient operation; meanwhile, the accuracy of repeated positioning can be kept, when the mammary gland positioning device is used for positioning the mammary gland of a patient, the patient can keep the diseased mammary gland away from the heart and lung without adopting a prone posture, and the damage of rays to normal heart and lung tissues during radiotherapy is reduced.

The mammary gland positioning device comprises a mammary gland positioning part and a bracket, wherein the mammary gland positioning part is the mammary gland positioning part, and the mammary gland positioning part is arranged on the bracket. When the mammary gland positioning component is fixed on the breast under the action of the connected air pump, the mammary gland positioning component can be arranged on the bracket, and under the supporting action of the bracket, the sucked mammary gland can be fixed at a position far away from the heart and lung of a patient without fixing by hands, so that the accuracy of repeatedly fixing the position for many times is maintained while the manual operation intensity is lightened, and meanwhile, the irradiation volume of heart and lung during irradiation field arrangement is reduced, and the damage of rays to normal organs such as heart and lung during radiation treatment is reduced; in addition, the patient can take a supine position in the radiotherapy process, so that the breast of the patient is positioned simply and is convenient to operate, and the discomfort of the patient is reduced.

In some embodiments, the support includes a frame and a first movement mechanism removably coupled to the breast positioning assembly, the first movement mechanism being disposed on the frame, the first movement mechanism being reciprocally movable. Therefore, the mammary gland positioning part can be moved by the first moving mechanism, so that the mammary gland positioning part can move along the direction away from the heart and lung of a patient with the sucked mammary gland, the operation is convenient, and the accuracy of the moving position is high.

In some embodiments, the bracket further comprises a second movement mechanism; the first moving mechanism is arranged on the frame through the second moving mechanism, wherein the first moving mechanism is arranged on the second moving mechanism, and the second moving mechanism is arranged on the frame in a reciprocating manner along the horizontal direction. Therefore, the mammary gland positioning part can move along the moving track of the second moving part on the horizontal plane, the moving direction of the mammary gland positioning part is increased, and the position of the mammary gland positioning part is adjusted more flexibly and accurately; meanwhile, as the positions of the mammary gland positioning components are more flexible and adjustable, the universality of the mammary gland positioning device and CT (electronic computed tomography) or MRI (magnetic resonance imaging) equipment and a linear accelerator in the treatment stage in the positioning process is improved.

In some embodiments, the bracket further comprises a rotation mechanism; the first moving mechanism is arranged on the second moving mechanism through a rotating mechanism, wherein the first moving mechanism is arranged on the rotating mechanism, and the rotating mechanism can be arranged on the second moving mechanism in a 360-degree rotating way around a rotating shaft of the rotating mechanism. Therefore, the rotating angle of the mammary gland positioning part can be adjusted through the rotating mechanism, so that the adjusting mode of the position of the mammary gland positioning part is diversified, and the use requirements of different scenes are met.

In some embodiments, the first moving mechanism is hinged to the rotating mechanism, a locking switch is arranged at a hinged position of the first moving mechanism and the rotating mechanism, the locking switch is used for fixing the relative position of the first moving mechanism and the rotating mechanism, and a hinged shaft at the hinged position is perpendicular to a rotating shaft of the rotating mechanism. Therefore, the first moving mechanism can rotate relative to the rotating mechanism, the structure is simple, the operation is convenient, when the first moving mechanism rotates to a required position, the positions of the first moving mechanism and the rotating mechanism are locked through the locking switch, so that the first moving mechanism and the rotating mechanism cannot rotate relative to each other, the mammary gland positioning part is not moved after being positioned accurately, and the positioning accuracy of the mammary gland positioning part is ensured; simultaneously, because rotary mechanism can rotate 360 around its pivot, simultaneously, first moving mechanism is rotatable for rotary mechanism for the direction of rotation of the mammary gland locating part who connects on first moving mechanism is richer, and adjustable direction of rotation is more accurate moreover.

In some embodiments, the bracket further comprises a third movement mechanism; the second moving mechanism is arranged on the frame through a third moving mechanism, wherein the second moving mechanism is arranged on the third moving mechanism, the third moving mechanism is arranged on the frame in a reciprocating manner along the horizontal direction, and the moving direction of the third moving mechanism is different from the moving direction of the second moving mechanism. Therefore, the mammary gland positioning part can move and rotate in the three-dimensional space, and the mammary gland positioning part is not required to be fixed by hands, so that the manual operation strength is reduced, and the accuracy of repeated fixed positions of the mammary gland positioning part is maintained. In the positioning process of radiotherapy, after the breast positioning component is fixed, the first moving mechanism, the second moving mechanism, the rotating mechanism and the third moving mechanism can be adjusted to enable the third moving mechanism to be connected with the breast positioning component for sucking up the breast, and the first moving mechanism, the second moving mechanism, the third moving mechanism and the rotating mechanism are adjusted to lift the breast positioning component to enable the breast of a patient to move away from the heart lung in a three-dimensional space, the positions of the first moving mechanism, the second moving mechanism, the rotating mechanism and the third moving mechanism are recorded, and then the positions of the mechanisms are adjusted according to the recorded position data of the mechanisms after each time of positioning; in the verification and treatment process of radiotherapy, the positions of the first moving mechanism, the second moving mechanism, the rotating mechanism and the third moving mechanism are adjusted according to the position data of each mechanism recorded in the positioning process, so that the consistency of the positions of the mammary gland positioning component in the positioning, verification and treatment processes is ensured, the high precision of each positioning is ensured, the treatment precision is ensured, and the damage of radiation of radiotherapy to normal organs, normal tissues and normal cells is reduced. Meanwhile, as the breast positioning device is used for sucking up the breast, a patient can lie on the breast bracket in a supine posture in the positioning, verifying and treating processes of radiotherapy, the breast positioning part is used for positioning and sucking up the breast of the patient, so that breast tissues are gathered, and the breast positioning part is adjusted through the first moving mechanism, the second moving mechanism, the third moving mechanism and the rotating mechanism which are arranged on the bracket, so that the breast positioning part sucks up the breast to move upwards, thereby enabling the breast and a tumor area to move upwards and away from the heart and lung, reducing the irradiation volume of the heart and lung when the irradiation field is arranged, and reducing the damage of rays to normal organs such as the heart and the lung and the like when the radiotherapy is carried out; in addition, the patient adopts a supine posture in the radiotherapy process, so that the breast of the patient is positioned simply, the operation is convenient, and the discomfort of the patient is reduced.

In some embodiments, the rotating mechanism comprises a rotating member rotatably arranged on the second moving mechanism, and a limit groove is arranged on the circumference of the outer diameter of the rotating member; the limiting assembly used for limiting the rotating position of the rotating piece is arranged at the position where the second moving mechanism is connected with the rotating piece, a limiting block which can elastically deform along the direction perpendicular to the rotating piece is arranged in the limiting assembly, the limiting block is inserted into the limiting groove, and the residual compression deformation amount when the limiting block is inserted into the limiting groove is larger than the depth of the limiting block inserted into the limiting groove. Because the rotating piece can rotate relative to the second moving mechanism, when the rotating piece rotates, the pressure applied by the rotating piece to the limiting component is gradually increased, so that the elastic deformation and shrinkage degree of the limiting component are increased, and when the limiting component moves out of the limiting groove, the pressure applied by the rotating piece to the limiting component is maximum; continuing to rotate the rotating piece, when the limiting groove on the rotating piece rotates to the position where the limiting assembly is located, the pressure applied by the rotating piece to the limiting assembly is gradually reduced, and the limiting assembly is inserted into the limiting groove due to the fact that the elastic force is released to restore the original shape; when the rotating piece is kept rotating clockwise or anticlockwise, the limiting assembly is continuously moved out of and inserted into the limiting groove; when the rotating piece is not rotated by external force, the limiting component is inserted into the limiting groove, so that the rotating piece is prevented from rotating randomly, the rotating position of the rotating piece can be limited by the limiting component, and the stability of the limiting component in limiting the position of the mammary gland positioning component is ensured.

In some embodiments, the bracket further comprises a locking device movably arranged on the limit component; when the locking device moves to cover the limiting block, the locking device compresses the limiting block, so that the second residual compression deformation of the limiting block is smaller than the depth of the limiting assembly inserted into the limiting groove. Therefore, when the rotating piece rotates to a required position, the limiting block is locked in the limiting groove through the locking device, and the rotating piece cannot rotate, so that the rotating piece is prevented from rotating when the rotating piece is touched carelessly, and the stability of limiting the position of the breast positioning component by the limiting component is ensured.

In some embodiments, the first moving mechanism, the second moving mechanism, the rotating mechanism, and the third moving mechanism are each provided with a dial for recording position data of the first moving mechanism, the second moving mechanism, the rotating mechanism, and the third moving mechanism. Therefore, in the verification and treatment process of radiotherapy, the positions of the first moving mechanism, the second moving mechanism, the rotating mechanism and the third moving mechanism are adjusted according to the position data of each mechanism recorded in the positioning process, the consistency of the positions of the mammary gland positioning components in the positioning, verification and treatment processes is ensured, the high precision of each positioning is ensured, the treatment precision is ensured, and the damage of radiation of radiotherapy to normal organs, normal tissues and normal cells is reduced.

Drawings

FIG. 1 is a schematic view showing the overall structure of a breast positioning part according to an embodiment of the present invention;

FIG. 2 is a schematic view of the breast positioning assembly of FIG. 1 from another perspective;

FIG. 3 is a schematic view showing a disassembled state of the breast positioning part shown in FIG. 1;

FIG. 4 is a schematic view of the breast positioning assembly of FIG. 3 from another perspective;

FIG. 5 is a schematic cross-sectional view of the breast positioning member of FIG. 2 taken along line D-D;

FIG. 6 is a schematic view showing the overall structure of a breast positioning apparatus according to another embodiment of the present invention;

FIG. 7 is a schematic view of the overall structure of the breast positioning apparatus of FIG. 6 with the addition of an aspiration device;

FIG. 8 is a schematic view of the breast positioning assembly and first movement mechanism of FIG. 6 in a disassembled state;

FIG. 9 is a schematic diagram of the second moving mechanism shown in FIG. 6;

FIG. 10 is a schematic view of the second movement mechanism shown in FIG. 9 in a disassembled state;

FIG. 11 is a schematic view of the mounting sleeve of FIG. 10 from another perspective;

FIG. 12 is a schematic view of the second movable member shown in FIG. 10 from another perspective;

FIG. 13 is a schematic view of the cross-sectional A-A configuration of the breast positioning apparatus of FIG. 6;

FIG. 14 is an enlarged partial view of the breast positioning apparatus of FIG. 13 at N;

FIG. 15 is a schematic view of the rotating mechanism shown in FIG. 6;

FIG. 16 is an enlarged schematic view of a portion of the breast positioning apparatus shown in FIG. 13 at B;

FIG. 17 is a schematic view of the M-M cross-sectional configuration of the rotary mechanism shown in FIG. 15;

FIG. 18 is a schematic view illustrating a disassembled state of the rotating mechanism and the second moving member shown in FIG. 6;

FIG. 19 is a schematic view of the locking wrench of FIG. 18 from another perspective;

FIG. 20 is a schematic view of the rotating lever of FIG. 18 from another perspective;

FIG. 21 is a schematic view of the swivel lever and first movement mechanism of FIG. 6 in a disassembled state;

FIG. 22 is a schematic view of the frame and third movement mechanism of FIG. 6 in a disassembled state;

FIG. 23 is a schematic view of the third movable member shown in FIG. 22 from another perspective;

FIG. 24 is a method of using the breast positioning device of FIG. 7 for a radiotherapy positioning procedure;

fig. 25 is a method of using the breast positioning device of fig. 7 for radiation therapy verification or treatment procedures.

Detailed Description

The invention is described in further detail below with reference to the accompanying drawings.

Figures 1 to 5 schematically show a breast positioning member 6 according to one embodiment of the present invention. As shown in fig. 1, 3 to 5, the breast positioning part 6 comprises a base 62, and the base 62 is provided with a suction structure for sucking up the breast and sucking up the breast together; the base 62 is also integrally formed with a cavity 625. The cavity 625 is located on a side of the base 62 facing the breast (the lower surface of the base 62 as shown in fig. 5), and the cavity 625 is used for fixing the sucked-up breast.

During breast radiotherapy, when the breast positioning component 6 is used to position the breast of a patient, the patient can adopt a supine posture, so that the breast positioning component 6 is conveniently placed on the breast of the patient, and the breast is positioned in the cavity 625 of the base 62; at this time, the base 62 is fixed to the breast of the patient by the suction action of the suction structure, so that the breast positioning member 6 can position the breast of the patient; then, the breast positioning part 6 is moved to a position away from the heart lung of the patient, and the breast positioning part 6 is fixed at a position away from the heart lung of the patient, so that the breast of the patient is away from the heart lung of the patient, and the damage of the radiation in the radiotherapy to the normal heart lung tissue of the patient is reduced.

In this embodiment, as shown in fig. 1 and 5, the suction structure includes at least one suction port 623 and at least one suction interface 622. The air suction port 623 and the air suction port 622 are integrally formed on the base 62, and the air suction port 623 is located on a surface of the base 62 facing the breast (a lower surface of the base 62 as shown in fig. 1), the air suction port 622 is located on a surface of the base 62 facing away from the breast (an upper surface of the base 62 as shown in fig. 1), and the air suction port 623 is communicated with the air suction port 622, and the air suction port 622 can be communicated with an air suction device through which the air suction structure is sucked, so that the air suction port 623 is tightly sucked on an object.

In order to enable the base 62 to firmly suck the breast by the suction structure, to fix the breast in the cavity 625, in a preferred embodiment there are a plurality of suction openings, which are uniformly distributed on the base 62 outside the cavity 625, and/or to uniformly distribute the suction openings on the walls of the cavity 625 (not shown in the figures).

In other embodiments, the suction structure may also be an elastically deformable suction chamber provided with a suction opening (not shown in the figures). When the suction structure is used for sucking air, pressure is firstly applied to the suction cavity, air in the suction cavity is extruded through the suction port, and the suction cavity can elastically deform.

In the present embodiment, as shown in fig. 3 and 5, the base 62 includes a disc surface 6200 and a convex portion 6201. The disc surface 6200 and the protruding portion 6201 are integrally formed, in order to make the base 62 capable of sucking up the breast of a patient uniformly, the cavity 625 is integrally formed in the middle of the disc surface 6200, the air suction ports 623 are formed on the circumferential edge of the disc surface 6200 uniformly, the protruding portion 6201 is located on one surface of the disc surface 6200 (the upper surface of the disc surface 6200 as shown in fig. 3) facing away from the breast, and the air suction interface 622 is formed on the protruding portion 6201 (generally, the air suction interface 622 is formed on one surface of the protruding portion 6201 facing away from the breast, as shown in fig. 3, the upper surface of the protruding portion 6201). In order to simplify the connection of the suction connection 622 to the suction device, only 1 to 2 suction connections 622 are generally provided, suction cavities 628 are formed in the base 62, all suction openings 623 are connected via the suction cavities 628, and all suction connections 622 are connected via the suction cavities 628, so that the suction openings 623 are connected to the suction connection 622 via the suction cavities 628. When the mammary gland positioning part 6 provided with the air suction interface 622 is used for positioning the mammary gland, the air suction interface 622 can be connected with air suction equipment, the air suction equipment is started, air suction is carried out through the air suction equipment, and the air suction cavity 628 communicated with the air suction interface 622 through the air suction port 623 is in negative pressure, so that the mammary gland positioning part 6 is sucked on the mammary gland through the air suction port 623.

To facilitate control of the air pressure within the air suction cavity 628, two air suction interfaces 622 are provided, both air suction interfaces 622 being connected to an air suction device, one air suction interface 622 for air suction and the other air suction interface 622 for air inflation.

In other embodiments, a plurality of air inlets may be uniformly distributed on a surface of the base 62 facing the breast, and an air inlet port may be provided corresponding to each air inlet, and the plurality of air inlets are not communicated with each other, so that the plurality of air inlets are more complicated to connect with an air inlet device (not shown in the figure). In order to reduce the number of suction interfaces and to simplify the connection of the suction interfaces to the suction device, suction cavities (not shown) can be provided in the base wall, which communicate with a plurality of suction openings and suction interfaces.

Since positioning of the breast is required during positioning, verification and treatment of radiotherapy, the breast positioning part 6 maintains high-precision breast positioning during the procedures, and damage of the normal breast cells by the rays during the treatment can be reduced. In order to ensure high accuracy of breast positioning, one method is to increase the contact area between the breast positioning member 6 and the breast when the breast positioning member 6 positions the breast. Therefore, in order to improve the accuracy of positioning the breast positioning part 6, in this embodiment, as shown in fig. 1 and 3 to 5, the breast positioning part 6 further includes a positioning component 61, a positioning surface 615 is formed on the positioning component 61, the positioning surface 615 is adapted to the cavity 625, and when the positioning component 61 is connected to the base 62, the positioning surface 615 covers the cavity 625.

To avoid dirt from entering the aspiration cavity 628 from the aspiration port 623, the breast positioning component 6 is difficult to clean, while to avoid cross-infection caused by different patients using the breast positioning component 6, patient health is ensured. In the present embodiment, as shown in fig. 1 and 3 to 5, the positioning assembly 61 is detachably connected with the base 62. The positioning assembly 61 as shown in fig. 3 includes a positioning surface 615, a mounting portion 614 and a connecting portion 610, the mounting portion 614 is used for determining a relative position of the positioning assembly 61 and the base 62, so as to facilitate connection of the positioning assembly 61 and the base 62, the connecting portion 610 is used for connecting the positioning assembly 61 and the base 62, and the connecting portion 610 includes a base connecting buckle 612. The positioning surface 615 is disposed at one end of the mounting portion 614 (the mounting portion 614 is disposed on a surface of the positioning surface 615 facing away from the mammary gland, i.e., on an upper surface of the positioning surface 615 as shown in fig. 3), the connecting portion 610 is disposed at the other end of the mounting portion 614, and the positioning surface 615, the mounting portion 614 and the connecting portion 610 are preferably integrally formed or fixedly connected, and the positioning surface 615 has a disc shape.

A cavity 625 and a groove 626 matching the outer shapes of the positioning surface 615 and the mounting portion 614 are provided on one side of the base 62 as shown in fig. 4 and 5, and the upper surface and the lower surface of the positioning surface 615 are tapered surfaces parallel to each other for compact structure of the breast positioning member 6. One end of the recess 626 of the base 62 as shown in fig. 3 is also provided with a first detent assembly connection clip slot 621 that mates with the base connection clip 612.

The positioning component 61 is positioned with the cavity 625 and the groove 626 of the base 62 through the positioning surface 615 and the mounting portion 614, and then is buckled with the first positioning component connecting clamping groove 621 through the base connecting buckle 612 to realize detachable connection with the base 62. At this time, the positioning surface 615 of the positioning component 61 is covered on the cavity 625, and at this time, the side of the positioning component 61 and the base 62 facing the mammary gland forms a continuous conical surface.

To further ensure accuracy and reliability of positioning of the positioning assembly 61, the breast-facing side of the positioning surface 615 is tacky (the breast-facing side of the positioning surface 615 may be coated with a tacky coating or a tacky material such as medical grade silicone may be affixed).

To facilitate the attachment of the positioning assembly 61 to the skin of a patient, the positioning assembly 61 is made of an elastic material.

In order to further improve the positioning accuracy of the positioning assembly 61, a positioning hole 613 is integrally formed in the middle of the side, facing the breast, of the positioning surface 615 as shown in fig. 4 and 5, and the positioning hole 613 may be a counter bore or a through hole. In order to make the structure of the positioning assembly 61 compact, the mounting portion 614 is a boss coaxial with the positioning hole 613, and the positioning hole 613 is provided in the mounting portion 614. When the breast positioning part 6 is used to position the breast of a breast patient, first, the breast of the patient is initially positioned through the positioning hole 613 of the breast positioning part 6, and then, the air suction interface 622 of the breast positioning part 6 is connected with the air suction device, and the breast positioning part 6 is tightly sucked on the breast under the air suction action of the air suction device.

In order to avoid X-rays being blocked by the breast positioning device during the positioning, verification and treatment phases of the radiation treatment, the breast positioning part 6 is made of a non-metallic material and is not deformable. Preferably, the nonmetallic material is a carbon fiber material with light weight and high strength.

In order to ensure the positioning effect of the positioning component 61 and the sucking effect of the base body 62 on the breast, the diameter of the positioning hole 613 of the positioning component 61 is 2-2.5cm, the depth is greater than 2.5cm, the positioning component is used for avoiding the nipple of a patient, the outer diameter of the positioning surface 615 of the positioning component 61 is 4.5-5cm, the positioning component 61 is stuck on the breast of the patient to cover the areola of the patient, the conical surface angle is 150-170 degrees, the positioning component 61 is tightly stuck on the breast of the patient, the outer diameter of the base body 62 is 10-12cm, and the base body 62 can suck the breast of the patient under the suction action of the suction equipment. In another embodiment, unlike the previous embodiment, the outer diameter of the positioning surface 615 of the positioning element 61 may be set to be 10-12cm, and when the positioning element 61 is connected to the base 62, a through hole corresponding to the air inlet 623 is further provided on the positioning surface 615 of the positioning element 61, and at this time, the through hole on the positioning surface 615 communicates with the air inlet 623 on the base 62 (not shown in the figure).

In order to facilitate the breast positioning part 6 to keep a fixed position when moving the breast to a position far away from the heart lung of the patient, a connecting structure connected with other fixing devices is further arranged on the breast positioning part 6 so as to realize the detachable connection of the breast positioning part 6 with the other fixing devices. The connection structures to the other fastening means may be provided on the side of the base 62 or the positioning assembly 61 facing away from the breast, for example, when the connection structures to the other fastening means are provided on the positioning assembly 61, as shown in fig. 1 and 3 to 5, the connection structures to the other fastening means are provided on the side of the base connection clasp 612 of the positioning assembly 61 facing away from the breast, and the base 62 is provided with a through hole 624 for the connection structures to the other fastening means. The connection structure may be, for example, a buckle that is adapted to a clamping groove provided on the other fixing device, and the connection structure passes through the hole 624 and then is detachably connected to the other fixing device by means of a clamping manner. In other embodiments, the connecting structure may also be a through hole which is arranged on the side of the base 62 or the positioning component 61 facing away from the mammary gland and is matched with a screw hole arranged on other fixing devices, and the base 62 or the positioning component 61 is connected with the other fixing devices through screws. In order to facilitate that when the breast positioning member 6 is sucked onto the breast of a patient, the breast-facing side of the base 62 and the positioning assembly 61 can be maximally abutted against the breast of the patient, high accuracy of repeated positioning is ensured, the positioning assembly 61 is provided with the air hole 616, one opening of the air hole 616 is positioned on the breast-facing side of the positioning assembly 61, the other opening of the air hole 616 is positioned on the breast-facing side of the positioning assembly 61, and after the positioning assembly 61 is connected with the base 62, the other opening of the air hole 616 is communicated with the outside of the breast positioning member 6, so that when the base 62 is sucked onto the breast of the patient, excessive air between the base 62 and the positioning assembly 61 and the breast can be discharged to the outside of the breast positioning member 6 through the air hole 616, thereby enabling the breast-facing sides of the positioning assembly 61 and the base 62 to be abutted against the breast of the patient.

Fig. 6 to 22 schematically show a breast positioning device according to an embodiment of the present invention. As shown, it includes a breast positioning part 6 and a bracket for fixing the breast positioning part 6, wherein the breast positioning part 6 is the breast positioning part 6 described in the previous embodiment, and the breast positioning part 6 is detachably connected with the bracket.

In order to facilitate the movement of the stationary breast by the breast positioning part 6 to a position remote from the heart and lung of the patient, the support comprises in this embodiment, as shown in fig. 6 and 7, a frame 1 and a first movement mechanism 8. As shown in fig. 8, the first moving mechanism 8 is capable of moving reciprocally, and comprises a first moving member 81 and a guiding member 84, the guiding member 84 is provided with a guiding through hole 843 adapted to the first moving member 81, one end of the first moving member 81 passes through the guiding through hole 843 and moves reciprocally under the limitation of the guiding through hole 843, the other end of the first moving member 81 is provided with a second positioning component connecting clamping groove 82 for connecting with the mammary gland positioning component 6, the connecting portion 610 on the positioning component 61 of the mammary gland positioning component 6 further comprises a first moving mechanism connecting clamping buckle 611 corresponding to the second positioning component connecting clamping groove 82, and the connecting portion 610 comprises a base body connecting clamping buckle 612 and the first moving mechanism connecting clamping buckle 611 from bottom to top. The first moving mechanism 8 and the mammary gland positioning part 6 are detachably connected through the clamping of the second positioning component connecting clamping groove 82 and the first moving structure connecting clamping buckle 611, and can also be connected in other detachable modes. The first moving member 81 moves with the breast positioning member 6 connected thereto, when the breast fixed by the breast positioning member 6 moves to a position away from the heart and lung of the patient, the position of the breast positioning member 6 needs to be fixed, in order to prevent the first moving member 81 from moving relative to the guide member 84, a moving turntable 83 is provided at a position where the first moving member 81 is connected to the guide member 84, and the first moving member 81 and the guide member 84 are relatively fixed or relatively moved by rotating the moving turntable 83, for example, when the moving turntable 83 is rotated clockwise, the first moving member 81 and the guide member 84 are relatively fixed, and when the moving turntable 83 is rotated counterclockwise, the first moving member 81 can relatively move relative to the guide member 84; the relative fixation or relative movement of the position of the first moving member 81 and the guide member 84 may be achieved by other structures, for example, a threaded hole is provided at the connection position of the guide member 84 and the first moving member 81, the threaded hole penetrates from the surface of the guide member 84 to the surface contacting the first moving member 81, a screw is mounted to the threaded hole, when the first moving member 81 is to be moved, the screw does not contact the first moving member 81, at this time, the first moving member 81 can move along the guide of the guide member 84, and when the first moving member 81 moves the breast fixed by the breast positioning member 6 to a position away from the heart and lung of the patient, the screw is tightened in the direction of the first moving member 81, so that the position of the first moving member 81 and the guide member 84 is relatively fixed. The guide 84 is fixedly installed on the frame 1, and preferably, the first moving member 81 is provided as an L-shaped bar to limit the moving distance of the first moving member 81.

The fixing and mounting mode can be a mode of fixing and mounting through screws or a mode of welding.

In other embodiments, the first moving mechanism may also be that a rack is disposed on the first moving member, a gear adapted to the rack is rotatably disposed on the guide member (a hinged manner may be adopted in the rotatable manner), a through hole (not shown in the figure) for limiting the rack of the first moving member to be in a meshing position with the gear on the guide member is further disposed on the guide member, the forward and reverse rotation gear drives the rack to reciprocate, and the fixing or moving of the relative position of the first moving member and the guide member may adopt the structure of the moving turntable as described above, or may adopt the structure of the screw and the threaded hole as described above, which is not repeated herein.

To facilitate movement of the breast positioning device during positioning, verification and treatment, the breast positioning part 6, as shown in fig. 6 and 7, the stand further comprises a second movement mechanism 3. At this time, the first moving mechanism 8 is provided on the frame 1 through the second moving mechanism 3, the first moving mechanism 8 is provided on the second moving mechanism 3, and the second moving mechanism 3 is provided on the frame 1 so as to be reciprocally movable in the horizontal direction.

The specific structure of the second moving mechanism 3 is shown in fig. 10, 13 and 14, and the second moving mechanism 3 includes a second moving member 32 and a second transmission member 31 for driving the second moving member 32 to move. In this embodiment, when the second moving mechanism 3 adopts a screw-nut structure and the second transmission member 31 is a screw rod, as shown in fig. 10, one end of the second transmission member 31 is provided with a second external thread 314, the other end of the second transmission member 31 is provided with a clamping section 311, a second matching section 312 and a second transmission head 313, the second transmission head 313 is preferably a hexagonal prism, the diameter of the clamping section 311 is greater than the large diameter of the second external thread 314, the diameter of the second matching section 312 and the circumscribed circle of the hexagonal prism, and the circumscribed circle of the hexagonal prism is smaller than the diameter of the second matching section 312; one end of the second moving member 32 as shown in fig. 12 is provided with a second internal screw 323 corresponding to the second external screw 314, the second moving member 32 is not cylindrical in shape, and the second moving member 32 is preferably square in shape; the second moving mechanism 3 shown in fig. 10 further comprises a mounting sleeve 33, a second mounting seat 34 and a second moving knob 35, wherein one end of the mounting sleeve 33 shown in fig. 11 is provided with a second mounting seat connecting screw hole 332 for connecting the second mounting seat 34 and a second through hole for passing through a second external thread 314, the other end of the mounting sleeve 33 shown in fig. 10 is provided with a special-shaped hole 331 which is matched with the shape of the second moving member 32, the special-shaped hole 331 is a counter bore and is communicated with the second through hole, and the diameter of the second through hole is smaller than that of the clamping section 311; the second transmission member 31 extends into the mounting sleeve 33 from the second through hole, and one end of the second moving member 32 extends into the mounting sleeve 33 from the special-shaped hole 331 and is rotatably connected with the second transmission member 31 through threads. The second mounting seat 34 as shown in fig. 10 is provided with a counter bore matched with the clamping section 311, a through hole matched with the second matching section 312 and a through hole corresponding to the second mounting seat connecting screw hole 332 of the mounting sleeve 33; the second mounting seat 34 is connected with the mounting sleeve 33 through a screw, the second transmission head 313 of the second transmission member 31 extends out of the through hole of the second mounting seat 34, the second moving knob 35 is provided with a counter bore corresponding to the hexagonal prism of the second transmission head 313 and is sleeved outside the second transmission head 313, and the second transmission member 31 can not move but can rotate relative to the mounting sleeve 33.

The first moving mechanism 8 may fixedly mount the guide member 84 on the other end of the second moving member 32 (by fixedly connecting with a screw or a welding manner), and the second moving mechanism 3 may fixedly mount the mounting seat 34 on the frame 1, and the fixedly connecting manner is identical to the foregoing, which will not be described herein.

In other embodiments, the first moving mechanism may also adopt a structure consistent with the structure of the screw-nut of the second moving mechanism 3, where the first moving mechanism includes a first transmission member, a first moving member, a mounting sleeve, a first mounting seat and a first moving knob, where the first transmission member further includes a clamping section, a first mating section, a first transmission head and a first external thread, the first moving member includes a first internal thread, the mounting sleeve includes a special hole, a first mounting seat connecting screw hole, a first mounting seat and a first moving knob, and the specific structure, the connection manner and the operation manner are consistent with the structure of the screw-nut of the second moving mechanism 3 and are not described herein (not shown in the drawings). When the first moving mechanism adopting the screw-nut structure is connected with the mammary gland positioning part 6, one end of the first moving part which is not connected with the first transmission part can be detachably connected with the mammary gland positioning part 6; when the first moving mechanism is connected to the second moving mechanism 3, the first moving mechanism may be mounted on an end of the second moving member 32, which is not connected to the second transmission member 31, through the first mounting seat.

Further, the second transmission member 31 may be driven to rotate by a motor, where the motor includes a control circuit and a control panel, and the rotation amounts of the motor and the second transmission member 31 are precisely controlled by the control circuit and the control panel, so that the movement amount of the second moving member 32 is precisely controlled, and the specific control method is consistent with the above and will not be repeated herein. When the breast positioning apparatus is not in use, the second moving member 32 can be retracted into the mounting sleeve 33 by rotating the second moving knob 35, thereby reducing the space occupied by the breast positioning apparatus.

In order to enable the angle of the mammary gland positioning part 6 to be adjusted, the mammary gland positioning device is more flexible and convenient to use, and the bracket also comprises a rotating mechanism 4 as shown in fig. 6 and 7. The first moving mechanism 8 is arranged on the second moving mechanism 3 through the rotating mechanism 4, the first moving mechanism 8 is arranged on the rotating mechanism 4, and the rotating mechanism 4 is arranged on the second moving mechanism 3 in a 360-degree rotating way around the rotating shaft of the rotating mechanism. As shown in fig. 16 and 18, the rotating mechanism 4 is rotatably provided in the specific embodiment of the second moving mechanism 3, the rotating mechanism 4 includes a rotating member 41, the rotating member 41 includes a limiting rod 411 and a rotating rod 413, the limiting rod 411 is provided with two sections with different diameters, one end with a larger diameter is a large diameter end, and the other end with a smaller diameter is a rotating rod connector 416; one end of the second moving member 32 shown in fig. 18 is provided with a rotating member mounting hole 321 adapted to the large diameter end and a rotating member mounting seat connecting screw hole 325 for connecting the rotating member mounting seat 44, the rotating member mounting hole 321 is a counter bore, and the rotating member mounting seat 44 is provided with a through hole adapted to the rotating rod connector 416 and a through hole corresponding to the rotating member mounting seat connecting screw hole 325; the large diameter end of the limiting rod 411 is inserted into the rotating member mounting hole 321 of the second moving member 32, the rotating member mounting seat 44 is sleeved outside the rotating member connector 416 of the limiting rod 411, and the rotating member mounting seat 44 is connected with the second moving member 32 through a screw, so that the rotatable connection between the limiting rod 411 and the second moving member 32 is realized; meanwhile, one end of the rotating rod 413 shown in fig. 20 is provided with a limiting rod connecting hole 417 adapted to the rotating rod connector 416, the limiting rod connecting hole 417 is a counter bore, the rotating rod connector 416 shown in fig. 18 is further provided with a rotating rod connecting screw hole 4161, the rotating rod 413 is provided with a through hole corresponding to the rotating rod connecting screw hole 4161, and the rotating rod connector 416 is inserted into the limiting rod connecting hole 417 and is coaxially and fixedly connected through a screw.

In order to make the rotation angle of the mammary gland positioning member 6 more flexible, the first moving mechanism 8 is rotatably connected with the rotating mechanism 4, and a lock switch is provided at a position where the first moving mechanism 8 is connected with the rotating mechanism 4, the first moving mechanism 8 and the rotating mechanism 4 can be rotated relatively by the lock switch, or the position of the first moving mechanism 8 and the rotating mechanism 4 can be fixed relatively, and the rotation axis of the first moving mechanism 8 relative to the rotation of the rotating mechanism 4 is not parallel to the rotation axis of the rotating mechanism 4, preferably, the rotation axis of the first moving mechanism 8 relative to the rotation of the rotating mechanism 4 is perpendicular to the rotation axis of the rotating mechanism 4. In this embodiment, the first moving mechanism 8 is hinged to the rotating mechanism 4 in a rotating connection manner, as shown in fig. 21, and the other end of the rotating rod 413 is provided with a joint for connecting the guide member 84, and a first hinge hole 414 is provided at the joint; the guide member 84 is provided with a corresponding second hinge hole 841, and the rotation member 41 and the guide member 84 are hinged by a hinge shaft 8410, the hinge shaft 8410 being perpendicular to the rotation shaft of the rotation member 41.

In order to control the rotation amount of the first moving mechanism 8 with respect to the rotating mechanism 4, as shown in fig. 21, a lock switch is provided at the hinge of the guide member 84 and the rotating member 41 so that the guide member 84 can be rotated or fixed with respect to the rotating member 41. In the present embodiment, as shown in fig. 21, the turning member 41 is provided with at least one set of first locking holes 415 (or a plurality of sets), the guide member 84 is provided with second locking holes 842 corresponding to the positions of the first locking holes 415, the more the number of the second locking holes 842, the more accurate the locking position of the guide member 84, the locking switch includes a locking knob 8420, and the locking knob 8420 is provided with a locking lever 8421. Pulling the locking knob 8420 to withdraw the locking rod 8421 from the first locking hole 415 and/or the second locking hole 842 allows the guide 84 to rotate relative to the rotating member 41 (when the guide 84 is rotated to the desired position, depressing the locking knob 8420 causes the locking rod 8421 to pass through the first locking hole 415 and the second locking hole 842, at which time the guide 84 is fixed relative to the rotating member 41). In other embodiments, the locking switch may be implemented by a screw, and a through threaded hole is provided on the guide member 84 or the rotating member 41 at the hinge position of the guide member 84 and the rotating member 41, and the screw is adapted to the threaded hole, so that the guide member 84 can rotate relative to the rotating member 41 when the screw is not screwed; when the screw is tightened, the guide 84 is fixed relative to the rotary member 41 (not shown).

In order to limit the rotation amount of the rotation member 41, the rotation mechanism 4 shown in fig. 15 includes the rotation member 41 and a limiting assembly 42 for limiting the rotation position of the rotation member 41. As shown in fig. 16, the second moving member 32 of the second moving mechanism 3 is sleeved on the limit lever 411 of the rotating mechanism 4 through a rotating member mounting hole 321 provided at one end thereof, and at least one limit groove 412 is provided in the circumferential direction of the outer diameter of the connecting portion of the limit lever 411 and the second moving member 32. When only one limit groove is provided, the limit groove may be an annular groove provided on the outer diameter of the limit lever 411, in which a plurality of protrusions and recesses (not shown) are provided.

The stopper assembly 42 as shown in fig. 16 to 18 includes a pressing cover 421, a stopper 423, and a cover plate 422. The stopper 423 is installed at a position where the rotating member 41 is connected with the second moving member 32 through the cover 421 and the cover 422, and the stopper 423 is inserted into the stopper groove 412 of the stopper rod 411, the stopper 423 is elastically deformable in a direction perpendicular to the rotating member 41, and a first residual compression deformation amount when the stopper 423 is inserted into the stopper groove 412 is greater than a depth of the stopper 423 inserted into the stopper groove 412.

16-18, the limiting block 423 comprises a shifting block 424, a spring 425 and a pressing block 426, wherein the shifting block 424 is provided with a shifting block base 4242 for supporting the spring 425, one side of the shifting block base 4242 is provided with a shifting block 4243, and the other side of the shifting block base 4242 is provided with a shifting block round table 4241 matched with the inner diameter of the spring 425; the pressing block 426 is provided with a pressing block base 4262 for supporting the spring 425, one side of the pressing block base 4262 is provided with a pressing block round table 4263 matched with the spring 425, and the pulling block base 4242 and the pressing block base 4262 are preferably consistent in size; the pressing cover 421 is provided with a poking block through hole 4211, and the poking block through hole 4211 is matched with the poking block base 4242 and the pressing block base 4262.

In this embodiment, as shown in fig. 16 to 18, a plurality of limiting grooves 412 are provided on the outer diameter of the limiting rod 411, the limiting grooves 412 extend along the axial direction of the limiting rod 411, the distribution of the limiting grooves 412 on the outer diameter of the limiting rod 411 is preferably uniformly distributed (in other embodiments, the limiting grooves 412 may be unevenly distributed on the outer diameter of the limiting rod 411), and the limiting grooves 412 are preferably V-shaped grooves. The ends of the paddles 4243 are preferably configured to fit the V-groove; the second moving member 32 is provided with a dial through hole 322 adapted to the dial 4243 and a gland connection screw hole 324 for connecting the gland 421. The gland 421 is connected with the second moving member 32 through a screw, the dial boss 4241 and the press boss 4263 are sleeved in the spring 425 and are arranged in the dial boss through hole 4211 of the gland 421, the dial 4243 passes through the dial boss through hole 322 of the second moving member 32 and is inserted into the V-shaped groove of the limit rod 411, the spring 425 can be elastically deformed along the direction perpendicular to the axis of the rotating member 41, and the residual compression deformation of the spring 425 is greater than the depth of the dial 4243 inserted into the limit groove 412 when the dial 4243 is inserted into the V-shaped groove. The cover 422 and the gland 421 are preferably fixedly connected, and the fixed connection manner is as described above, and is not described herein. The cover 422 and the cover 421 may be integrally formed. The dial block 424, the spring 425 and the pressing block 426 are disposed in a cavity surrounded by the pressing cover 421, the cover plate 422 and the third moving member 22.

When the limiting rod 411 is rotated, due to the limitation of the cover plate 422, and the residual compression deformation amount of the spring 425 when the plectrum 4243 is inserted into the V-shaped groove is larger than the depth of the plectrum 4243 inserted into the limiting groove 412, the plectrum 4243 can be moved out of the V-shaped groove, when the plectrum 4243 is gradually moved out of the V-shaped groove, the spring 425 is compressed by the pretightening force of the plectrum 424 and the pressing block 426, when the limiting rod 411 is rotated to the adjacent V-shaped groove and placed under the plectrum 4243, the elasticity of the spring 425 releases the plectrum 4243 to be inserted into the V-shaped groove, when the plectrum 4243 is placed in the V-shaped groove, the rotary member 41 is limited by the plectrum 4243, and the rotary member 41 is not rotated. The greater the number of limit grooves 412 provided on the rotary member 41, the more precisely the position of the limit assembly 42 is defined. Preferably, adjacent ones of the limiting slots 412 are co-prismatic, and the limiting assembly 42 moves out of one limiting slot 412 and simultaneously enters the next limiting slot 412 under the action of elastic force.

When the rotating member 41 is to be rotated, only the limiting rod 411 is required to be screwed to rotate, the poking plate 4243 is continuously moved into the next limiting groove 412 from the limiting groove 412, and when the screwing of the limiting rod 411 is stopped, the poking plate 4243 is inserted into the limiting groove 412, so that the limiting rod 411 does not rotate, and the limiting effect of the limiting assembly 42 is realized.

In other embodiments, the combination of the pressing block 426, the spring 425 and the pulling block 424 may be replaced by an elastically deformable elastic member, which is compressively elastically deformable in the direction perpendicular to the axis of the stop lever 411, and is provided with a pulling piece adapted to the V-shaped groove, which is compressively elastically deformed when the stop lever 411 is rotated, and is removed from the V-shaped groove, and is inserted into the V-shaped groove due to the release of the elastic force of the elastic member when the adjacent V-shaped groove is rotated below the pulling piece.

In order to further ensure the stability of the rotational position of the rotor, the rotation mechanism 4 further comprises locking means 43. The locking device 43 further generates compression elastic deformation in the direction of the limiting component 42 towards the limiting groove 412, when the limiting rod 411 is to be rotated, since the second residual compression deformation amount of the limiting component 42 is smaller than the depth of the limiting component 42 inserted into the limiting groove 412, the limiting component 42 cannot move from the limiting groove 412 to the next limiting groove 412, so that the limiting component 42 locks the position of the limiting rod 411 under the action of the locking device 43, the limiting rod 411 cannot rotate under the action of torsion force, and the accuracy of position limitation of the limiting rod 411 is ensured.

In this embodiment, the locking device 43 shown in fig. 18 includes a locking tab 431 and a locking wrench 432, the locking tab 431 is provided with a locking tab base 4313 and a locking tab boss 4312, one end of the bottom surface of the locking tab base 4313 is provided with a first inclined surface 4311, the other end is provided with a base plane 4314, the cover 422 is provided with a cover plate through slot 4221 for passing through the locking tab boss 4312, the locking wrench 432 shown in fig. 19 is provided with a locking wrench countersink 4321 adapted to the rib, one side of a pressing block base 4262 of the pressing block 426 shown in fig. 16 facing the locking tab 431 is provided with a second inclined surface 4261 corresponding to the first inclined surface 4311, and the pressing cover 421 shown in fig. 18 is provided with a supporting platform 4212 for supporting the locking tab 431. The locking piece 431 is arranged on the supporting platform 4212, the cover plate 422 is fixedly connected with the gland 421, the locking piece base 4313 is arranged in a cavity surrounded by the cover plate 422 and the gland 421, and the locking piece boss 4312 extends out of the cover plate through groove 4221 and is matched with the locking wrench sinking groove 4321 of the locking wrench 432.

When the locking device 43 is used, the locking wrench 432 is pulled towards the direction of the pressing block 426, the locking wrench 432 slides towards one surface of the pressing block 426, which faces the cover plate 422, with the locking piece 431 connected with the locking wrench 432, the locking piece 431 gives a pretightening force to the limiting groove 412 to the spring 425, the pulling piece 4243 is inserted into the limiting groove 412, at the moment, the second residual compression deformation of the spring 425 is smaller than the depth of the pulling piece 4243 inserted into the limiting groove 412, when a torsion force is applied to the limiting rod 411, the second residual compression deformation of the spring 425 is insufficient to enable the pulling piece 4243 to be removed from the limiting groove 412, so that the limiting groove 412 adjacent to the limiting groove 412 of the pulling piece 4243 cannot be rotated to the position below the pulling piece 4243 through rotation of the limiting rod 411, and locking of the locking device 43 to the limiting groove 411 is achieved (when the limiting rod 411 is to be rotated, the locking wrench 432 pulls the locking piece 431 away from the pressing block 426, at the moment, and when the pulling piece 4243 is moved from the limiting groove 412, and the limiting groove 412 is moved from the limiting groove 412).

In other embodiments, the locking device may be implemented by a screw, and a through threaded hole is provided on the second moving mechanism 3 or on the rotating member 41 at the connection position of the second moving mechanism 3 and the rotating member 41, and the screw is adapted to the threaded hole, and when the screw is not screwed, the second moving mechanism 3 may rotate relative to the rotating member 41; when the screw is tightened, the second moving mechanism 3 is fixed relative to the rotating member 41 (not shown in the drawing).

In order to allow the breast positioning part 6 to move in three dimensions, the stand further comprises a third movement mechanism 2, as shown in fig. 6 and 7. The second moving mechanism 3 is provided on the frame 1 through the third moving mechanism 2, the second moving mechanism 3 is provided on the third moving mechanism 2, the third moving mechanism 2 is provided on the frame 1 so as to be reciprocally movable in the horizontal direction, and the moving direction of the second moving mechanism 3 is different from the moving direction of the third moving mechanism 2.

In this embodiment, as shown in fig. 22, the third moving mechanism 2 includes a third moving member 22 and a third transmission member 21 for driving the third moving member 22 to move. In this embodiment, when the third moving mechanism 2 adopts a screw-nut structure and the third transmission member 21 is a screw rod, as shown in fig. 22, a third external thread 213 is disposed in the middle of the third transmission member 21, both ends of the third transmission member 21 are provided with a third matching section 211 and a third transmission head 212, the diameter of the third matching section 211 is smaller than the major diameter of the third external thread 213, the third transmission head 212 is preferably a hexagonal prism, and the diameter of the circumscribed circle of the hexagonal prism is smaller than the major diameter of the third external thread 213 and the diameter of the third matching section 211; the third moving member 22 is provided with a third female screw 222 corresponding to the third male screw 213 as shown in fig. 23, and the third moving member 22 is screw-engaged with the third transmission member 21.

The two ends of the frame 1 as shown in fig. 22 are provided with mounting structures for mounting the third transmission member 21, the mounting structures comprise mounting through holes 106 and mounting screw holes 107, the mounting through holes 106 are matched with the third matching sections 211, and the third mounting seats 23 are provided with through holes matched with the third matching sections 211 and through holes corresponding to the mounting screw holes 107; the third matching sections 211 at the two ends of the third transmission piece 21 penetrate through the mounting through holes 106 at the two ends of the frame 1 and the through holes of the third mounting seat 23, the third mounting seat 23 at the two ends of the frame 1 is connected with the frame 1 through screws, so that the third transmission piece 21 is mounted on the frame 1, the third transmission piece 21 can only rotate and can not move, the third transmission heads 212 at the two ends of the screw rod extend out of the through holes of the third mounting seat 23, and the third moving knob 24 is provided with counter bores corresponding to the hexagonal prisms of the third transmission heads 212 and is sleeved outside the third transmission heads 212. The frame 1 shown in fig. 22 further comprises at least one cross bar 101 (or a plurality of cross bars) parallel to the screw rod, at least one connecting groove 221 is arranged at a position of the third moving member 22 corresponding to the cross bar 101 shown in fig. 23, frame connecting screw holes 223 are arranged at two ends of the connecting groove 221, and through holes corresponding to the frame connecting screw holes 223 are arranged at the connecting member 25 shown in fig. 22; the connecting groove 221 of the third moving member 22 is sleeved outside the corresponding cross bar 101 and connected with the connecting member 25 through a screw, the cross bar 101 is limited in the area surrounded by the connecting groove 221 and the connecting member 25, and movable connection of the frame 1 and the third moving member 22 is realized.

Rotating the third moving knob 24 drives the third transmission member 21 to rotate, so that the third moving member 22 moves along the extending direction of the third transmission member 21. Further, the third transmission member 21 may be driven to rotate by a driving device, for example, the third transmission member 21 may be driven to rotate by a motor, so as to reduce the working strength of an operator (not shown in the figure); the driving device may also be controlled by a program to drive the third driving member 21 to perform driving, for example, the motor includes a control circuit and a control panel, in which a control program is embedded, the control program is configured to convert displacement information input by the control panel into rotation information of the third driving member 21, and output a driving control signal to control rotation amounts of the motor and the third driving member 21, so as to implement precise control of a movement amount of the third moving member 22 and implement automation of the movement (not shown in the drawing).

The connection between the third mounting seat 23 and the frame 1, and the connection between the second transmission member 31 and the third moving member 22 may also be connected by a detachable connection such as a key, a rivet, or a pin (not shown in the drawings).

In other embodiments, the third transmission member 21 and the second transmission member 31 may be gears or worm gears, and the corresponding third moving member 22 and the second moving member 32 are racks and worms (not shown in the drawings). When the gear and the rack are selected, the gear is rotatably connected with the frame 1, the frame 1 is provided with a supporting rod for supporting the rack, and the rack is driven to move along the extending direction of the rack when the gear rotates; the gear is rotatably connected with the third moving member 22, the third moving member 22 is provided with a supporting rod for supporting the rack, and the rack is driven to move along the extending direction of the rack when the gear rotates. When a worm gear is selected, the frame 1 is provided with a supporting rod for supporting the worm, and the worm is driven to move along the extending direction of the worm when the worm gear rotates; the third moving member 22 is provided with a support rod for supporting the worm, and when the worm wheel rotates, the worm is driven to move along the extending direction of the worm. Further, the gear and the worm wheel may be driven by a motor, and the motor may further include a control circuit and a control panel, and specific control of the movement amounts of the rack and the worm by the control circuit and the control panel is as described above, which is not described herein.

As shown in fig. 11, the second moving mechanism 3 and the third moving mechanism 2 are connected by a third moving member connecting screw hole 333 for connecting the third moving member 22 is provided on the side of the mounting sleeve 33 of the second moving mechanism 3 facing the third moving member 22, a through hole corresponding to the screw hole is provided in the third moving member 22, and the mounting sleeve 33 is connected to the third moving member 22 by a screw. In order to ensure the consistency of the positions of the mammary gland positioning component 6 in the positioning, verifying and treating processes, and ensure the high precision of each positioning and the treating precision, the third moving mechanism 2, the second moving mechanism 3, the rotating mechanism 4 and the first moving mechanism 8 are provided with dials, and the moving or rotating data of the corresponding mechanisms are recorded.

The breast positioning apparatus as shown in fig. 22 further comprises a breast adjusting device 7, the breast adjusting device 7 comprises a connecting tube 71, an aspiration device 72 and an aspiration device connecting seat 73, and the aspiration device can be a pump, such as a negative pressure pump. The suction connection 622 of the base body 62 is connected to the suction device 72 via a connecting tube 71, and the suction device 72 is preferably mounted on the third displacement member 22 via a suction device connecting socket 73. When the device is used for positioning the mammary gland, the inhalation device 72 is started to inhale the basal body 62, so that the basal body 62 sucks the mammary gland and the mammary gland is far away from the heart lung; when the device is not in use, the suction device 72 is turned off and the base 62 stops lifting the breast.

Preferably, the frame 1 as shown in fig. 7 includes a cross bar 101 of the frame 1, a handle 102, a fixing base 103, a fixing base handle 104, a fixing core 105, and a first transmission member 21 mounting structure, wherein the first transmission member 21 mounting structure includes a mounting through hole 106 and a mounting screw hole 107. The frame 1 can be fixed at a fixed position through the fixing core 105, so that the positioning of the mammary gland positioning device is accurate, when the mammary gland positioning device needs to move to the position, the fixing core 105 can be disassembled, the fixing core 105 can be locked again through the handle 102 or the fixing seat handle 104 moving to the required position, the operation is convenient, and the fixing core 105 can be a screw for simple connection.

The connection mode of the frame 1 and the third moving mechanism 2 and the connection mode of the third moving mechanism 2 and the second moving mechanism 3 are preferably in a detachable connection mode through screws, can be in a detachable connection through keys, pins or rivets, and can be in a non-detachable connection through welding (not shown in the figure); the second moving mechanism 3 and the rotating mechanism 4 may be rotatably connected by sleeving the two, or may be hinged (not shown).

In other embodiments, the positioning assembly 61 may be detachably connected to the base 62 and the first moving mechanism 8 by a screw, a key, a pin, a rivet, or the like (not shown) instead of being fastened by a snap-fit of a slot.

The mammary gland positioning device of the embodiment, which comprises a mammary gland positioning component 6, a first moving mechanism 8, a rotating mechanism 4, a second moving mechanism 3, a third moving mechanism 2 and a frame 1, is adopted to position the mammary gland of a patient suffering from breast cancer when radiotherapy is carried out, the patient adopts a supine posture to lie on a mammary gland bracket, the frame 1 is arranged on one side of the mammary gland bracket, then the rotating mechanism 4, the second moving mechanism 3 and the third moving mechanism 2 are sequentially arranged on the frame 1, a positioning surface 615 with adhesiveness of a positioning component 61 is adhered to the areola of the patient (when the positioning component 61 is provided with the positioning hole 613, the positioning hole 613 of the positioning component 61 can be covered outside the nipple of the patient firstly, then the positioning surface 615 with adhesiveness of the positioning component 61 is adhered to the areola of the patient, to improve the accuracy of positioning of the positioning assembly 61), then the base 62 is detachably connected with the positioning assembly 61, at this time, the suction device 72 connected with the base 62 is turned on, the base 62 sucks the breast of the patient, the positions of the first moving mechanism 8, the second moving mechanism 3, the rotating mechanism 4 and the third moving mechanism 2 are adjusted, the first moving mechanism 8 is located above the positioning assembly 61, the positioning assembly 61 is lifted upwards to detachably connect the positioning assembly 61 with the first moving mechanism 8, the first moving mechanism 8 is adjusted, the positioning assembly 61 is lifted upwards by the first moving mechanism 8, and the base 62 connected with the positioning assembly 61 and the breast sucked by the base 62 are lifted upwards, so that the breast of the patient is far away from the heart and lung, and the damage of rays to normal organs such as the heart and the lung during radiation therapy is reduced.

In order to avoid X-rays being blocked by the breast positioning device during the positioning, verification and treatment phases of radiotherapy, the breast positioning part 6 and the first movement mechanism 8 are made of non-metallic materials and are not deformable; for safety, the first moving mechanism 8 and the rotating mechanism 4 are also made of nonmetallic materials and are not deformable; preferably, the nonmetallic material is a carbon fiber material with light weight and high strength.

The first moving mechanism 8, the second moving mechanism 3 and the third moving mechanism 2 may be implemented by conventional moving mechanisms such as a rail-slide block structure, a worm gear structure or a rack-and-pinion structure in the prior art, and the specific implementation manner of the first moving mechanism 8, the second moving mechanism 3 and the third moving mechanism 2 is not limited as long as the moving functions of the first moving mechanism 8, the second moving mechanism 3 and the third moving mechanism 2 can be implemented. In addition, the moving mechanism can be driven to move through the power equipment, and the power equipment can be a motor or an air cylinder. When the moving mechanism is of a guide rail sliding block structure, the sliding block can be driven by a motor or an air cylinder to reciprocate along the direction of the guide rail; when the moving mechanism is a worm and gear mechanism, the worm can be driven to rotate through a motor or an air cylinder to drive the worm wheel to reciprocate along the axial direction of the worm; when the moving mechanism is of a gear-rack structure, the gear can be driven to rotate through a motor or an air cylinder to drive the rack to reciprocate.

The rotating mechanism can also be realized by adopting a gear pair structure in the prior art, and the specific realization mode of the rotating mechanism is not limited, so long as the rotating function of the rotating mechanism can be realized.

The locking switch and locking device 43 may be implemented by a screw structure of a conventional design, and the present invention is not limited to a specific implementation manner of the locking switch and locking device 43, as long as the relative position of the first moving mechanism 8 and the rotating mechanism 4 and the relative position of the rotating member 41 and the second moving mechanism 3 can be fixed.

Fig. 24 schematically shows a method of using a breast positioning device comprising a breast positioning part 6, a first movement mechanism 8, a rotation mechanism 4, a second movement mechanism 3, a third movement mechanism 2 and a frame 1 for a radiotherapy positioning procedure. As shown, the method includes the steps of:

step S101: sticking the positioning surface 615 of the positioning component 61 to the areola of the breast of the patient (when the positioning component 61 is provided with the positioning hole 613, the nipple of the patient can be placed in the positioning hole 613 of the positioning component 61 first, and then the positioning surface 615 of the positioning component 61 is stuck to the areola of the breast of the patient);

step S102: marking the position of the attachment of the positioning assembly 61 with a marker pen on the skin of the patient;

Step S103: detachably connecting the base 62 with the positioning assembly 61;

step S104: activating the suction device 72 to cause the base 62 to suck the patient's breast;

step S105: the frame 1 is arranged on one side of the mammary gland bracket, and the connected first moving mechanism 8, second moving mechanism 3, third moving mechanism 2 and rotating mechanism 4 (for convenience of description, the connected first moving mechanism 8, second moving mechanism 3, third moving mechanism 2 and rotating mechanism 4 are called as transmission systems for short) are arranged on the frame 1;

step S106: adjusting the positions of the first moving mechanism 8, the second moving mechanism 3, the rotating mechanism 4 and the third moving mechanism 2 to enable the first moving piece 81 of the first moving mechanism 8 to move above the positioning assembly 61;

step S107: lifting the positioning assembly 61 upward to be detachably coupled with the first moving member 81;

step S108: the positions of the third moving mechanism 2, the second moving mechanism 3, the rotating mechanism 4 and the first moving mechanism 8 are adjusted so that the breast positioning member 6 sucks up the breast and position data of the respective mechanisms are recorded.

By adopting the method, the breast of the patient is positioned in the positioning process of the radiotherapy of the breast cancer patient, the breast of the patient is sucked up through the matrix 62, and the breast positioning component 6 is supported by the frame 1, the first moving mechanism 8, the second moving mechanism 3, the third moving mechanism 2 and the rotating mechanism 4, so that the breast of the patient is sucked up, the breast of the patient is far away from the heart lung, and the damage of rays to the heart lung and other normal organs and tissues during the radiotherapy is reduced; meanwhile, the pasting position of the positioning component 61 is marked with lines and the position data of the rotating mechanism 4 and each moving mechanism are recorded, and the position data of the rotating mechanism 4 and each moving mechanism are recorded in the multiple positioning process of the positioning process, so that the positioning accuracy of the mammary gland positioning device is ensured.

Preferably, step S105 may also be located before any of steps S101 to S104.

Fig. 25 schematically illustrates a method of using a breast positioning device for a radiotherapy positioning procedure according to the present invention, and a method of using a breast positioning device for a radiotherapy verification or treatment procedure. As shown, the method includes the steps of:

step S201: mounting the frame 1 on one side of the breast bracket and mounting the transmission system on the frame 1;

step S202: adjusting the positions of the first moving mechanism 8, the second moving mechanism 3, the rotating mechanism 4 and the third moving mechanism 2 based on the position data of the rotating mechanism 4 and the respective moving mechanisms recorded in step S108;

step S203: pasting the positioning component 61 on the line drawing mark in the step S102 (when the positioning component 61 is provided with the positioning hole 613, the nipple of the patient can be placed in the positioning hole 613 of the positioning component 61 first, and then pasting the positioning component 61 on the line drawing mark in the step S102);

step S204: detachably connecting the base 62 with the positioning assembly 61;

step S205: activating the suction device 72 to cause the base 62 to suck the patient's breast;

step S206: the positioning assembly 61 is lifted upward to be detachably coupled with the first moving member 81.

By adopting the method, the breast of the patient is positioned in the verification or treatment process of the radiotherapy of the breast cancer patient, the positions of the rotating mechanism 4 and each moving mechanism can be adjusted through the position data recorded in the positioning process, the operation is convenient and quick, and meanwhile, the positioning assembly 61 is positioned according to the line drawing mark on the skin in the positioning process, so that the positioning accuracy of the breast positioning device is ensured.

Preferably, step S201 and step S202 may also precede any of step S203 to step S205, but step S201 must precede step S202.

What has been described above is merely some embodiments of the present invention. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the invention.

Claims

1. The mammary gland positioning component (6) is characterized by comprising a base body (62), wherein an air suction structure for sucking up mammary glands is arranged on the base body (62), and a cavity (625) for fixing the sucked-up mammary glands is formed on one surface of the base body (62) facing the mammary glands;

the positioning assembly (61) comprises a positioning surface (615) for covering the cavity (625), and the positioning assembly (61) is detachably connected with the base body (62); the surface of the positioning surface (615) facing the mammary gland has viscosity;

The breast positioning component (6) is used for a breast positioning device, and the using method for the radiotherapy positioning process comprises the following steps:

step S101: adhering a positioning surface (615) of the positioning assembly (61) to the areola of the patient's breast;

step S102: marking the position of the pasting of the positioning component (61) by using a marking pen to mark lines on the skin of a patient;

step S103: detachably connecting the base body (62) with the positioning assembly (61);

step S104: activating an inhalation device to cause the base (62) to inhale a breast of a patient;

step S105: mounting a frame (1) on one side of a mammary gland bracket, and mounting a first moving mechanism (8), a second moving mechanism (3), a third moving mechanism (2) and a rotating mechanism (4) which are connected on the frame (1);

step S106: adjusting the positions of the first moving mechanism (8), the second moving mechanism (3), the rotating mechanism (4) and the third moving mechanism (2) to enable a first moving piece (81) of the first moving mechanism (8) to move above the positioning assembly (61);

step S107: lifting the positioning assembly (61) upwards to be detachably connected with the first moving member (81);

step S108: adjusting positions of the third moving mechanism (2), the second moving mechanism (3), the rotating mechanism (4) and the first moving mechanism (8) to enable the mammary gland positioning part (6) to suck breasts, and recording position data of the third moving mechanism (2), the second moving mechanism (3), the rotating mechanism (4) and the first moving mechanism (8);

The method of using the breast positioning component (6) in the breast positioning device for radiotherapy verification or treatment procedures comprises the steps of:

step S201: mounting the frame (1) on one side of a breast bracket, and mounting the first moving mechanism (8), the second moving mechanism (3), the third moving mechanism (2) and the rotating mechanism (4) on the frame (1);

step S202: adjusting the positions of the first moving mechanism (8), the second moving mechanism (3), the third moving mechanism (2) and the rotating mechanism (4) according to the position data of the first moving mechanism (8), the second moving mechanism (3), the third moving mechanism (2) and the rotating mechanism (4) recorded in the step S108;

step S203: pasting the positioning component (61) at the line drawing mark in the step S102;

step S204: detachably connecting the base body (62) with the positioning assembly (61);

step S205: activating an inhalation device to cause the base (62) to inhale a breast of a patient;

step S206: lifting the positioning assembly (61) upwards to be detachably connected with the first moving member (81);

wherein step S105 is located after step S104 or before any one of steps S101 to S104; step S201 and step S202 are located before any one of step S203 to step S205.

2. The breast positioning component (6) according to claim 1, wherein the suction structure of the base body (62) comprises a suction opening (623) and a suction interface (622), the suction opening (623) is arranged on a surface of the base body (62) facing the breast, the suction interface (622) is arranged on a surface of the base body (62) facing away from the breast, and the suction opening (623) is in communication with the suction interface (622).

3. The breast positioning component (6) according to claim 2, wherein the base body (62) comprises a disc surface (6200) and a protruding portion (6201), the cavity (625) is formed in the middle of the disc surface (6200), the air inlets (623) are uniformly distributed on the circumferential edge of the disc surface (6200), and the air inlet interface (622) is formed on the protruding portion (6201).

4. The mammary gland positioning device is characterized by comprising a mammary gland positioning part (6) and a bracket, wherein the mammary gland positioning part (6) is the mammary gland positioning part (6) according to any one of claims 1 to 3, and the mammary gland positioning part (6) is arranged on the bracket;

the bracket comprises a frame (1), a first moving mechanism (8), a second moving mechanism (3), a third moving mechanism (2) and a rotating mechanism (4); the first moving mechanism (8) comprises a first moving member (81);

The using method of the mammary gland positioning device for the radiotherapy positioning process comprises the following steps:

step S105: mounting the frame (1) on one side of a breast bracket, and mounting the connected first moving mechanism (8), second moving mechanism (3), third moving mechanism (2) and rotating mechanism (4) on the frame (1);

The using method of the mammary gland positioning device for radiotherapy verification or treatment process comprises the following steps:

5. Breast positioning device according to claim 4, characterized in that a first movement mechanism (8) is detachably connected to the breast positioning part (6), the first movement mechanism (8) being arranged on the frame (1), the first movement mechanism (8) being reciprocally movable.

6. The breast positioning device of claim 5, wherein the device comprises a plurality of positioning elements,

the first moving mechanism (8) is arranged on the frame (1) through the second moving mechanism (3), wherein the first moving mechanism (8) is arranged on the second moving mechanism (3), and the second moving mechanism (3) is arranged on the frame (1) in a reciprocating manner along the horizontal direction.

7. The breast positioning device of claim 6, wherein the device comprises a plurality of positioning elements,

the first moving mechanism (8) is arranged on the second moving mechanism (3) through the rotating mechanism (4), wherein the first moving mechanism (8) is arranged on the rotating mechanism (4), and the rotating mechanism (4) can be arranged on the second moving mechanism (3) in a 360-degree rotating way around a rotating shaft of the rotating mechanism.

8. The mammary gland positioning apparatus as claimed in claim 7, wherein the first moving mechanism (8) is hinged to the rotating mechanism (4), a locking switch is provided at a hinge position of the first moving mechanism (8) and the rotating mechanism (4), the locking switch is used for fixing a relative position of the first moving mechanism (8) and the rotating mechanism (4), and a hinge shaft (8410) at the hinge position is perpendicular to a rotating shaft of the rotating mechanism (4).

9. The breast positioning device according to claim 7, wherein the rotation mechanism (4) comprises a rotation member (41), the rotation member (41) is rotatably provided on the second movement mechanism (3), and a limit groove (412) is provided in the circumferential direction of the outer diameter of the rotation member (41);

the second moving mechanism (3) is provided with a limiting component (42) used for limiting the rotating position of the rotating piece (41) at the connecting position of the rotating piece (41), a limiting block (423) capable of elastically deforming along the direction perpendicular to the rotating piece (41) is arranged in the limiting component (42), the limiting block (423) is inserted into the limiting groove (412), and the first residual compression deformation amount of the limiting block (423) when the limiting block (423) is inserted into the limiting groove (412) is larger than the depth of the limiting block (423) inserted into the limiting groove (412).

10. The breast positioning device according to claim 9, wherein the holder further comprises a locking device (43), the locking device (43) being movably arranged on the limiting assembly (42);

when the locking device (43) moves to cover the limiting block (423), the locking device (43) compresses the limiting block (423) to enable the second residual compression deformation of the limiting block (423) to be smaller than the depth of the limiting block (423) inserted into the limiting groove (412).

11. The breast positioning device according to claim 8, characterized in that the second movement mechanism (3) is arranged on the frame (1) by means of the third movement mechanism (2), wherein the second movement mechanism (3) is arranged on the third movement mechanism (2), the third movement mechanism (2) is arranged on the frame (1) so as to be reciprocally movable in a horizontal direction, and the movement direction of the third movement mechanism (2) is different from the movement direction of the second movement mechanism (3).

12. Breast positioning device according to claim 11, wherein the first movement (8), the second movement (3), the rotation (4) and the third movement (2) are each provided with a dial for registering position data of the first movement (8), the second movement (3), the rotation (4) and the third movement (2).