59 results about "Areola" patented technology

The invention discloses a breast pump and a trumpet cover and a lining thereof, the trumpet cover comprises a cover body part and a deformable part and is provided with a breast pumping cavity, the cover body part is provided with a milk discharge channel, an areola abutting part and a flow guide groove, the deformable part is arranged at the tail end of the cover body part, and the deformable part is arranged at the tail end of the cover body part. The milk sucking cavity is formed between the cover body part and the deformable part, the mammary areola abutting part is located in the middle section of the cover body part, the milk discharging channel is communicated with the milk sucking cavity at the rear portion of the cover body part, and the flow guide groove obliquely extends to the milk discharging channel from the mammary areola abutting part.

A simulative breastfeeding device is provided. The device is comprised of an upper body-worn garment. The garment has an interior pocket that receives at least one reservoir. The reservoir is shaped like a breast and is comprised of an areola and a nipple. During use, the reservoir can be filled with breast milk and / or infant formula and placed into the interior pocket such that the areola and nipple extend outwards from an opening in the garment. Therefore, a user can wear the garment and breastfeed an infant (in a simulated manner) via the reservoir and nipple.

The invention discloses a breast shaping positioning assistive device, which relates to the technical field of breast shaping, and adopts the technical scheme that the breast shaping positioning assistive device comprises an adjusting clamping block, the two sides of the adjusting clamping block are slidably connected with adjusting belts, and a plurality of insertion holes are formed in the upper parts of the adjusting belts; the length of the adjusting belt can be adjusted by inserting the fixing pins into the inserting holes in different positions in the adjusting belt so as to adapt to the distance between the breasts of a person, and the side, away from the adjusting clamping block, of the adjusting belt is fixedly connected with a first fixing ring. The position of a second fixing ring can be adjusted according to the breast size and the nipple height of a person through a height adjusting mechanism arranged on the upper portion of an adjusting clamping block, positioning is completed through a nipple positioning mechanism, and after the mammary areola is marked, a second threaded rod at the bottom of a transmission groove can be driven to rotate by rotating the transmission groove; and connection between the transmission groove and the adjusting clamping block is removed, so that the nipple positioning mechanism and the areola line drawing mechanism can be taken down, and the situation that operation of a doctor is affected during follow-up shaping is prevented.

The invention provides a special mammary gland massage rehabilitation device for gynaecology and obstetrics and a use method and relates to the field of mammary gland massage. The special mammary gland massage rehabilitation device for the obstetrics and gynecology department comprises a massage device body, connecting assemblies are arranged on the two sides of the front end of the massage device body, massage assemblies are arranged on the two sides of the interior of the massage device body, and grooves are formed in the two sides of the front end of the outer wall of the massage device body; a plurality of soft massage blocks are arranged at the rear ends of the inner walls of the grooves, and connecting grooves are formed in the middles of the inner walls of the grooves. According to the mammary gland massage rehabilitation device special for the obstetrics and gynecology department and the using method, vibration massage is accurately conducted on the mammary areola and the peripheral part through the vibration motors in the soft massage blocks, nerves and lactiferous ducts in the area are densely distributed, vibration massage is beneficial to promoting smoothness of the lactiferous ducts, and the problem of milk deposition is more effectively relieved.

The utility model discloses a nipple areola positioning and measuring device which comprises a positioning ruler, two flexible rulers and an areola measurer, an adhesive layer is arranged on the back face of the positioning ruler, scale marks are arranged on the edge of the front face of the positioning ruler, a sliding groove is formed in the positioning ruler along the center line, a sliding block is connected in the sliding groove in a sliding mode, and the areola measurer comprises a circular ring and at least three connecting rods. The length of the three connecting rods is equal to the radius of the inner circle of the circular ring, one ends of the three connecting rods are evenly distributed and connected to the inner circle wall of the circular ring, the other ends of the three connecting rods are connected to the circle center of the circular ring, and a positioning column is arranged at the circle center. One end of one flexible rule is rotationally connected with the vertex of the positioning rule, and one end of the other flexible rule is rotationally connected with the sliding block. The positioning hole is matched with the positioning column, and the flexible ruler is provided with scale marks. The nipple areola positioning and measuring device is used for positioning and measuring nipple areola, guarantees symmetry of nipple areola on two sides, and is simple in structure, easy to operate and good in measuring accuracy.

The utility model discloses underwear which comprises a first part and a second part, the first part is located on the front side of a human body when the underwear is used, and the second part is located on the rear side of the human body when the underwear is used. The first part comprises a first fabric piece, a lining piece and a bottom surrounding piece, the second part comprises a second fabric piece, the lining piece is located between the first fabric piece and the second fabric piece, an inner pocket penetrating through the thickness of the lining piece is formed in the lining piece, and the inner pocket is formed in the position corresponding to a nipple or an areola of a human breast. According to the underwear, the inner pockets penetrating through the thickness of the lining piece are formed in the lining piece, so that when the underwear is used, the chest part penetrates through the inner pockets, meanwhile, the part, close to the inner pockets, of the lining piece is attached to the surfaces of the breasts to support and wrap the breasts, elasticity and constraint of the fabric are utilized, other parts are not needed, and the underwear is comfortable, free of feeling and free of stuffy sweat.

The invention relates to a baby mouth simulator for the female breast, comprising a receiving space for the lactated milk. The baby mouth simulator further comprises a milking sleeve, by means of which a manual milking pressure causing a lactation can be carried out to the nipple and the adjoining regions. The aim of the baby mouth simulator is to improve the effectivity of the method of a manual generation of a lactation of the female breast. This aim is achieved in that the milking sleeve is designed as a dual sleeve, wherein an inner sealing sleeve, which seals the receiving space with respect to the areola when used as intended, and a fixing sleeve, which mechanically fixes the baby mouth simulator on the breast when used as intended, is provided, and the receiving space is designed as a vacuum space.

The present invention relates to a method for manufacturing external silicone prostheses for the areola and nipple and to the prosthesis obtained using said method. The method comprises: a step (A) of preparing the silicone negative mould (m); a step (B) of applying a first layer (i) of pigmented silicone with details of the areola (2) and nipple (3); a step (C) of filling the nipple with a second layer (ii) of pigmented silicone matching the shade of the nipple (3) and additives and fibres; a step (D) of delimiting, measuring and filling the areola (2) with a third layer (iii) of pigmented silicone; a step (E) of catalysing the areola; a step (F) of applying a fourth layer (iv) of transparent silicone; a step (G) of removing silicone and creating the hollow (4) in the rear face (1b); a final catalysis step (H); and a step (I) of demoulding and cutting around the outer edge (5), leaving a protruding outer edge area (6).

The utility model relates to an arc-shaped knife handle for an endoscopic breast surgery. The arc-shaped knife handle is suitable for being combined with a scalpel to form an arc-shaped flap free knife for the single-hole endoscopic breast surgery. Distance scales are arranged on the side walls of the arc-shaped handle and the blade holder main body; the arc-shaped handle is provided with a lengthened handle so as to extend the operation range; the arc-shaped handle is beneficial for being tightly attached to the curve of the breast and the thorax and conveniently complies with and crosses the natural radian of the breast and the thorax, precise dissociation of the skin flap blocked by the nipple and areola complex during skin flap separation in the operation is achieved, the amount of bleeding in the operation is reduced, and the operation efficiency is improved. Damage to a nipple and areola complex and a breast duct behind the nipple and areola complex in the operation process is remarkably reduced, and the risk of skin flap necrosis is reduced; distance scales are convenient for measuring the radial width of the breast base along the thoracic radian in an operation, and accurate operation positioning and prosthesis selection reference is provided for doctors; therefore, the operation area can be accurately and efficiently determined in the endoscopic operation, and the success rate of the operation and the satisfaction degree of a patient are improved.

A nipple for attachment to an external component, for example a container. The nipple comprises a base portion for attachment to the external component. The nipple also comprises a breast portion extending from the base portion. The nipple also comprises an areola portion extending from the breast portion. The nipple also comprises a teat portion extending from the areola portion. The breast portion extends at a first angle relative to an axis of the base portion and the areola portion extends at a second angle relative to the axis of the base portion, wherein the first angle is greater than the second angle.

The invention discloses a negative pressure type nipple depression correcting device for the obstetrics and gynecology department, and particularly relates to the technical field of medical auxiliary instruments, the negative pressure type nipple depression correcting device comprises a bra main body, two correcting assemblies are arranged on the bra main body, and each correcting assembly comprises a supporting pad plate arranged on one side of the bra main body. The correction conical blocks of the positioning pressing balls synchronously move towards the nipple along the sliding grooves, and finally the nipple is stably limited to the center position in an annular surrounding mode. Compared with an existing device which only depends on a negative-pressure blind adsorption mode, nipple deviation in the negative-pressure adsorption process is effectively avoided, it is ensured that correction force acts on a nipple core area all the time, correction pertinence and effectiveness are remarkably improved, and the device is especially suitable for daily correction of patients suffering from mild and moderate nipple depression; and the distance between the correction conical block and the areola can be adjusted by rotating the correction conical block to adapt to mild, moderate, heavy and other different degrees of nipples, and the limitation that an existing device is single in size and cannot adapt to individual differences is overcome.

The present invention discloses a breast puncture device under ultrasound guidance, including an equipment box and a moving wheel installed at the bottom of the equipment box, a display screen is arranged on the top of the equipment box, a puncture positioning assembly is arranged on the side of the equipment box, and the puncture positioning assembly includes a suspended mounting plate, and a rotating U-shaped mounting frame is fixedly installed on the top of the suspended mounting plate. In the breast puncture device under ultrasound guidance, the negative pressure inside the hollow vertical cylinder and the suction cup makes the areola of the breast completely fit with the inner wall of the suction cup, so as to realize the adsorption and positioning of the breast from the areola, and the covering range of the breast is small, which is more conducive to the doctor to perform the puncture operation. Then, the rotating knob can drive the vertical threaded rod to rotate, and under the vertical transmission action of the vertical threaded rod and the welding plate, the spacing between the movable mounting block and the welding plate is adjusted, that is, the breast is stretched up and down as a whole to avoid the sagging of the breast affecting the positioning, and the threaded control can be stopped at any time, with strong controllability and more flexibility.

The invention discloses a breast pump and a lining thereof, the breast pump comprises a breast pump main body, a cover body and the lining, the cover body is arranged on the breast pump main body, the lining is arranged in the cover body, the lining comprises a deformable creeping part, and the creeping part is used for pushing, pulling and / or extruding an areola.

The utility model discloses a nipple and a feeding bottle with an air return function, and the nipple with the air return function comprises an areola part, an air return part and an air return part, the sucking head protrudes out of the upper end part of the mammary areola part; the base part is connected with the lower end of the mammary areola part, and an annular groove is formed in the peripheral surface of the base part; the air return valve comprises an air return port; the air return port is located in the inner wall of the annular groove, an air groove is formed in the inner wall of the annular groove, and the air return port is communicated with the outside through the air groove. According to the nipple with the air return function, the air return opening is formed in the inner wall of the annular groove of the base part, so that the face or the mouth of a baby is prevented from blocking the air return opening when the baby sucks milk, the baby is not prone to making contact with or biting the air return valve in the sucking process, and the failure of the air return valve caused by deformation of a sucking head is avoided; in addition, the whole appearance of the nipple is kept attractive.

FIELD: plastic surgery.SUBSTANCE: under aseptic conditions and endotracheal anesthesia, hydropreparation of the subcutaneous fat tissue is performed with 0.04% ropivacaine solution 60.0 ml with adrenaline 1:100000, a skin incision in the area of the submammary groove of the mammary gland of 3.5–4.0 cm in length is made, the tissues are dissected layer by layer to the fascia of the pectoralis major muscle. A dissection is performed in the Chassignac space to the level of the lower pole of the areola or an incision is made in the skin in the area of the mammary gland along the lower semicircle of the areola, the tissues are perpendicularly dissected layer by layer to the fascia of the pectoralis major muscle. Next, dissection is performed in the Chassignac space to the level of the submammary groove, and the lateral edge of the right pectoralis major muscle is isolated. The retropectoral pocket for the implant is formed using blunt and sharp methods. The lower medial bundle of the pectoralis major muscle is mobilized to the level of 4 o'clock on a conventional clock dial for the right breast and to the level of 8 o'clock on a conventional clock dial for the left breast. Partial vertical myotomy of the free muscle flap is performed. The distal fragments of the pectoralis major muscle are fixed at three points to the posterior surface of the gland with an atraumatic Vikryl 2-0 thread at the level of the nipple-areolar complex. A silicone implant is placed into the formed pocket, and the implant is evenly distributed and centered within it.EFFECT: preventing uncontrolled cranialization of the pectoralis major muscle flaps during vertical myotomy in dual-plane augmentation mammoplasty.1 cl, 2 ex

The utility model discloses a multifunctional post-breast-operation elastic bandage which comprises a base body part and a bandage body part. A cup through hole is formed in the center of the cup part in a penetrating manner, and the peripheral side of the cup part is connected with the base body part through a bidirectional zipper; the strap parts are made of elastic materials, the width of the strap parts is smaller than that of the cup parts, the strap parts are connected to the two sides of the base body part through fixed ends, and the movable ends of the strap parts are detachably connected together; the number of the inflatable air bags is two, the inflatable air bags are annular, a hole in the middle of the annular shape is matched with the position and the size of the cup through hole, the outer size of the annular shape is matched with the size of the cup part, and the inflatable air bags are fixed on the inner side of the cup part through hook-and-loop fasteners. The position of the nipple is reserved, the phenomenon of nipple necrosis caused by blood supply disorder due to the fact that the bandage compresses the nipple areola can be avoided, the inflatable air bag is designed to pressurize the breast portion in a targeted mode, the compression hemostasis effect or the effusion discharge promoting effect is improved, and rapid postoperative rehabilitation is promoted.

The invention relates to a functional anti-galactorrhea pad which comprises a bearing layer with an arc-shaped section and a medicine storage cavity connected with the bearing layer through a first bonding layer, an inner cavity is formed in the medicine storage cavity and filled with medicine liquid, an inner notch is formed in one side of the medicine storage cavity, and an absorption layer following the outline of the inner notch is arranged at the position of the inner notch; the edge of the bearing layer is provided with a second bonding layer used for being bonded to the skin, and a plurality of soft cushions used for absorbing exosmosis liquid are arranged around the inner notch at intervals. According to the invention, through the independently arranged medicine storage cavity, the liquid medicine for preventing and repairing the cracked nipples can directly act on the nipple areola part through the absorption layer, so that precise administration is realized, waste in unnecessary areas is avoided, and the utilization efficiency and the nursing effect are improved. The bearing layer with the arc-shaped section can be better attached to the physiological curve of the breasts. And the breast pad can be firmly adhered to the skin by combining with the second adhesive layer arranged at the edge of the bearing layer.

A breast shield for expressing human breast milk. The breast shield includes an outer housing and a flexible inner liner within the outer housing. In use, with the breast shield applied to a breast, the inner liner is in contact with the surface of both the areola and nipple of the breast. The breast shield further includes an outer chamber between the outer housing and the inner liner and an inner chamber within the inner liner. In use, the inner and outer chambers, are subjectable to differential pressure and the differential pressure is operable to cause the inner liner to exert a massaging effect against the surface of both the areola and nipple of a breast.

The utility model discloses positioning equipment for breast shaping, which comprises a nipple positioning ring, the nipple positioning ring is provided with a plurality of connecting plates, the connecting plates are arranged at intervals along the circumferential direction of the nipple positioning ring, the connecting plates are connected with a plurality of mammary areola positioning rings, the mammary areola positioning rings are arranged at intervals along the length direction of the connecting plates, and the connecting plates are connected with the mammary areola positioning rings. The nipple positioning ring coincides with the circle center of each mammary areola positioning ring; by the adoption of the structure, when a new mammary areola is marked, annular marking can be conducted according to the corresponding mammary areola positioning ring, and the mammary areola marking device is suitable for breast shaping.

The utility model discloses an armpit approach three-plane prosthesis breast augmentation reverse detacher which comprises a handle, the bottom end of the handle is fixedly connected with a hook plate, the surface of the bottom of the handle is provided with a plurality of finger grooves, the top end of the handle is provided with a decompression hole, the end portion of the handle is fixedly connected with a suction tube connector, the handle is provided with a length mark, and the handle is fixedly connected with the suction tube connector. The end part of the hook plate is provided with an arc-shaped head part which is upwarped by 15 degrees, and the bottom of the hook plate is provided with a smoke exhaust hole. According to the armpit approach three-plane prosthesis breast augmentation reverse detacher, the handle is held, the hook plate extends into the body of a patient through the armpit incision, reverse operation is facilitated, the outer side end of the proximal broken end of pectoralis major muscle is precisely separated to the head side to the nipple areola level, and a three-plane layer that the upper portion and the lower portion of the prosthesis are located behind muscles and the central area is located behind gland fascia is formed; and the accuracy of the operation is effectively improved.

The utility model discloses a bra for external application of traditional Chinese medicine, which belongs to the technical field of bras and comprises a bra body detachably connected with a medicine bag for external application of traditional Chinese medicine through a magic tape. Each medicine bag comprises a sponge pad corresponding to the bra body in shape and a gauze layer fixedly connected to the side face of the sponge pad, a storage space for storing traditional Chinese medicine for external application of breasts is formed between the sponge pad and the gauze layer, and a protection pad for protecting nipples and mammary areola is bonded to the center of the gauze layer through a double-faced adhesive tape; the side face, close to the bra body, of the sponge pad is provided with a notch facilitating feeding and discharging, the side face of the bra body is connected with shielding cloth used for shielding the notch, the end of the lower portion of the shielding cloth is further connected with the sponge pad through a hook-and-loop fastener, the hook-and-loop fastener is located below the notch, and the periphery of the bra body is connected with a lower band preventing medicine or liquid from flowing out. According to the external-application traditional Chinese medicine bra, external-application traditional Chinese medicine can be replaced conveniently, and the external-application effect of the traditional Chinese medicine can be guaranteed.

The utility model relates to a nipple and areola complex protection pad which comprises an inner-layer pad and an outer-layer pad, the inner-layer pad is in a conical cylinder shape, and a center hole is formed in the center of the top end of the inner-layer pad; the outer-layer pad is in a cambered surface shape, and air holes are formed in the outer-layer pad; the outer-layer cushion is connected outside the inner-layer cushion in a sleeving manner; nipple and mammary areola abrasion can be avoided, and the postoperative skin damage risk is reduced; supporting force is provided for the breasts, sagging or deformation of the breasts is effectively prevented, and the stable supporting and all-directional protection effects are achieved; the air permeability is ensured; potential damage to a nipple and areola complex vascular network caused by chest strap binding after a breast operation is avoided, and nipple and areola blood supply is protected. The comfort level of the patient is improved, and postoperative recovery can be accelerated; the nipple and areola complex protecting device is suitable for protecting nipple and areola complexes of breast cancer patients in mammary gland resection or I-stage prosthesis reconstruction for maintaining nipple and areola.

The invention discloses a breast feeding auxiliary system. The breast feeding auxiliary system comprises a bra body and bra straps, the bra belt supports the bra body and is worn on the chest of a user; an opening is formed in the front part of the bra body, so that nipples and mammary areola areas of a user are exposed; the bra body is of a multi-layer structure and sequentially comprises an outer layer, a middle layer and an inner layer from outside to inside; a gap is formed between the outer layer and the middle layer, and an air return layer cavity is defined by the gap; an air inlet layer cavity is defined by the middle layer and the inner layer; the inner layer is a wavy elastic layer; according to the breast feeding auxiliary system, by accurately simulating the sucking action of an infant, it is ensured that the infant contains mammary areola, and pains caused by nipple friction are effectively reduced. Meanwhile, by means of the periodic pushing and pressing effect of the wavy inner layer, the system promotes milk to flow smoothly, mammary gland blockage and mastitis are prevented, and the comfort and efficiency of breast feeding are improved. In addition, the heating function keeps the breasts warm, and the breast-feeding requirement in the cold environment is met.

The present application relates to the technical field of feeding bottles, and provides a feeding bottle, which comprises a nipple, a pressure sensor and a bottle body; the nipple comprises a nipple head and a areola arranged around the nipple head; the pressure sensor is arranged on the outer surface of the areola and is used for detecting the pressure value of the outer surface of the areola; the bottle body is connected with the nipple; the bottle body is internally provided with a milk cavity with adjustable volume; the milk cavity is connected with the nipple head; and the volume of the milk cavity can be reduced after the pressure value of the outer surface of the areola reaches a target value, so that milk in the milk cavity is discharged through the nipple. The feeding bottle provided by the present application can prevent nipple confusion only when the mouth of the baby wraps the areola and the upper and lower dental beds squeeze the areola.

The utility model discloses a mammary gland cutting liposuction needle which comprises a needle body and a needle handle, the needle body is of a hollow cylindrical structure, the front end of the needle body is a sharp needle head portion, the sharp needle head portion is designed to be open, and the rear end of the needle body is connected with the needle handle. A plurality of liposuction holes are formed in the side wall of the needle body, the liposuction holes are distributed in a staggered mode at equal intervals, and each liposuction hole is provided with a barb part used for cutting gland tissue. According to the mammary areola incision knife, perfect combination of the cutting function and the liposuction function is ingeniously achieved, gland tissue can be efficiently cut while liposuction is conducted, multiple complications such as scar hyperplasia, hyperpigmentation and tissue adhesion depression caused by a traditional mammary areola incision operation are greatly reduced, and better operation effect and postoperative experience are brought to a patient.

This utility model provides an areola skin cutter with adjustable diameter, comprising: multiple blades; multiple fixing components, which are combined to form a closed-loop annular structure, and the fixing components are fixedly connected to the multiple blades one by one; multiple adjustment modules, which are respectively connected to the multiple fixing components one by one; a control ring, which is drivenly connected to each adjustment module; and an outer fixing ring, which is used to axially limit the control ring and / or adjustment modules so that the control ring and / or adjustment modules can only rotate. Using the areola skin cutter of this application, the size can be continuously adjusted according to the cutting needs of the skin. Compared with the prior art, which can only cut according to a predetermined size, this application has a wider range of applications, and it does not obstruct the nipple area, making it easier for doctors to position the cutting site.

The utility model discloses medical breast surgery teaching model equipment, which comprises a trunk, a breast module I and a breast module II, the breast module I and the breast module II are movably connected with the trunk, each of the breast module I and the breast module II comprises a skeleton structure and a tissue structure, and the tissue structure covers the outside of the skeleton structure; mammary areola and nipples are arranged on one side of the first breast module, the sides, away from the first breast module, of the mammary areola are fixedly connected with the nipples, and the multiple groups of mammary areola and nipples correspond to the first organic diagnosis modules respectively; relates to the technical field of teaching equipment for breast surgery. According to the medical high-simulation breast model developed and designed by the utility model, common clinical manifestations in breast physical examination can be reproduced in the model, and the text content in a book is visually improved, so that the clinical teaching efficiency can be improved, meanwhile, the clinical teaching work is helped to solve the problem of privacy of a patient, and the medical high-simulation breast model has a relatively high clinical application value.

The invention discloses a method for evaluating the nipple state of a lactating female and a related device. The method comprises the following steps: acquiring two color images containing nipple and mammary areola areas; segmenting any color image to obtain a first segmentation result, performing edge detection on the first segmentation result, extracting edge contours of nipples and areola, and performing edge connection and closing operation on the edge contours to obtain a second segmentation result; calculating nipple length, nipple basal diameter and areola area according to the second segmentation result; inputting the two color images into an optical flow motion estimation model to obtain a ductility evaluation index of the mammary areola; and inputting the nipple length, the nipple basal diameter, the areola area and the areola ductility evaluation index into a nipple state classification model to obtain a nipple type and a lactation difficulty level. The brand-new nipple state evaluation method provided by the invention is not only suitable for medical institutions, but also can be applied to families and communities, and provides convenient evaluation service for lactating women.

A nipple areola marker cum cutter surgical device adapted for use during breast surgery to accurately mark and / or facilitate the incision (making the surgical cut) for the appropriate dimension, and size of the of new areola measurement during breast surgery, such as breast reduction, breast lift etc. The device is provisioned for ease of manoeuvring and settling on subjects for surgery with provision for handle and means for securing as cooperative connects during the surgical process with desired stability and operative convenience.

The present invention relates to a wearable breast pump, which belongs to the technical field of maternal and infant products. The breast pump is composed of a main unit component and an integrated core component. What is unique is that an integrated functional component including a butterfly-shaped air bag, a one-way valve plate and a negative pressure channel groove is provided to form a negative pressure buffer air path. The negative pressure airflow in the breast shield flows horizontally, and the negative pressure squeezes the breast more evenly, which increases the comfort of the breastfeeder when using it. The negative pressure cavity is connected to the milk outlet by a long flat negative pressure channel groove. The direction of negative pressure acting on the human breast is from the breast pad to the milk outlet, and the thickness of the breast pad also gradually becomes thinner from both ends to the middle. Under the action of negative pressure, the thinner area in the middle of the breast pad will be more likely to deform, squeezing and massaging the human areola, which is consistent with the conditioned reflex arc of natural lactation of the human body, making electric breast pumping closer to natural lactation.