Second-stage adjustable breast prosthesis

Abstract

The invention discloses a second-stage adjustable breast prosthesis. The second-stage adjustable breast prosthesis comprises a prosthesis main body, an expansion growth layer, an air inlet pipe, an air outlet pipe and a liquid outlet pipe, the prosthesis main body is made of a medical silica gel material and is hemispherical, a first inner cavity, a second inner cavity and a third inner cavity which are not communicated with one another are formed in the prosthesis main body, the first inner cavity is spherical or ellipsoidal and is arranged close to the spherical side wall of the prosthesis main body, and normal saline is contained in the first inner cavity; the second inner cavity is hemispherical and is spaced from the first inner cavity, the plane inner wall of the second inner cavity is parallel to the plane side wall of the prosthesis main body, the third inner cavity is bowl-shaped and coaxially covers the spherical inner wall of the second inner cavity, and an isolation inner wall is arranged between the second inner cavity and the third inner cavity; the expansion growth layer is made of a material with a water absorption expansion characteristic and is arranged in the third inner cavity; the air inlet pipe is communicated with the first inner cavity and the third inner cavity; the air outlet pipe is communicated with the first inner cavity and the second inner cavity; and the liquid outlet pipe is communicated with the second inner cavity and the third inner cavity.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to a two-phase adjustable breast prosthesis. Background Technology

[0002] Current breast augmentation surgeries typically involve implanting prostheses or injecting fat. The prostheses are mostly made of medical-grade silicone with an internal filling of silicone gel or saline solution. While human skin has elasticity, it has its limits, making it impossible to increase multiple cup sizes in a single breast augmentation surgery.

[0003] Therefore, if a patient needs to increase their bra size by several cup sizes, multiple surgeries must be performed depending on the skin's growth. This involves replacing the implant with a larger cup size or injecting more fat, causing the patient to suffer from the pain of multiple surgeries. Summary of the Invention

[0004] The purpose of this application is to provide a two-stage adjustable breast implant that allows for periodic and quantitative control of its slow expansion and growth after implantation, thereby promoting the slow adaptive growth of the skin around the breast.

[0005] To achieve the above objectives, this application provides the following technical solution: This application discloses a two-stage adjustable breast implant, comprising an implant body, an expansion growth layer, an air inlet tube, an air outlet tube, and a fluid outlet tube. The implant body is made of medical-grade silicone and is hemispherical. The implant body has three non-communicating cavities: a first cavity, a second cavity, and a third cavity. The first cavity is spherical or ellipsoidal and located near the spherical sidewall of the implant body, containing saline solution. The second cavity is hemispherical and spaced apart from the first cavity, with its planar inner wall parallel to the planar sidewall of the implant body. The third cavity is bowl-shaped and coaxially covers the spherical inner wall of the second cavity, with an insulating inner wall separating the second and third cavities. The expansion growth layer is made of a material with water-absorbing and expanding properties and is embedded in the third cavity. The air inlet tube connects the first and third cavities. The air outlet tube connects the first and second cavities. The fluid outlet tube connects the second and third cavities.

[0006] In one embodiment, the expansion growth layer includes a permeation layer, a first expansion layer, a second expansion layer, and an absorption layer arranged sequentially from the inner wall of the isolation structure toward the direction opposite to the inner wall of the isolation structure. The first expansion layer and the second expansion layer each have a plurality of interconnected gaps. One end of the air inlet pipe extends to the first expansion layer and / or the second expansion layer and communicates with the gaps, while the other end of the air inlet pipe communicates with the first inner cavity. One end of the liquid outlet pipe extends to the edge of the spherical inner wall away from the first inner cavity, while the other end of the liquid outlet pipe extends to the permeation layer.

[0007] In one embodiment, a first check valve is connected to the air inlet pipe, a second check valve is connected to the air outlet pipe, and a third check valve is connected to the liquid outlet pipe.

[0008] In one embodiment, the breast implant further includes a magnetic valve, which is built into the first inner cavity and connected to the inner wall of the first inner cavity. The magnetic valve is connected to the air outlet tube. The magnetic valve has a closed state and a closed state: when the magnetic valve is in the closed state, the first inner cavity is connected to the second inner cavity in sequence through the magnetic valve and the air outlet tube; when the magnetic valve is in the closed state, the magnetic valve closes the air outlet tube.

[0009] In one embodiment, the magnetic valve has a mutually perpendicular air outlet channel and a slide groove inside. One end of the air outlet channel has an air inlet, and the other end of the air outlet channel is connected to an air outlet pipe. A magnet is installed in the slide groove, and the magnet has a vent hole. The magnet can slide back and forth along the slide groove and has a first position and a second position in the slide groove. When the magnetic valve is in the open circuit state, the magnet is in the first position and the magnet closes the air outlet channel. When the magnetic valve is in the open circuit state, the magnet is in the second position and the vent hole is connected to the air outlet channel.

[0010] In one embodiment, a spring is also provided in the slide, with the two ends of the spring abutting against the magnet and one end of the slide, respectively. The spring has a first compression state and a second compression state. When the magnet is in the first position, the spring is in the first compression state; when the magnet is in the second position, the spring is in the second compression state.

[0011] In one embodiment, the permeable layer and the absorbent layer are made of multiple layers of cotton fiber material and / or synthetic fiber material stacked and interleaved; the first expansion layer and the second expansion layer are made of multiple expanded sponge particles.

[0012] In one embodiment, the pore density of the permeable layer is greater than that of the absorbent layer; the size of a single expanded sponge particle in the first expanded layer is greater than that of a single expanded sponge particle in the second expanded layer.

[0013] In one embodiment, the inner wall of the isolation wall has a rigid structural layer on the side near the second inner cavity; and / or the inner wall of the isolation wall has a rigid structural layer on the side near the third inner cavity.

[0014] In one embodiment, the rigid structural layer is a bracing structure made of a rigid material; and / or the rigid structural layer is a coating structure formed of a rigid particulate material.

[0015] Analysis reveals that this invention discloses a two-stage adjustable breast implant. After implantation, the magnetic valve can be controlled to be in an open or closed state using an electromagnet device on the outside of the implant body. When the outside of the implant body has a magnetic force repelling the magnetic poles of the magnet, the magnetic valve is in the closed state. At this time, external force is applied to the first inner cavity from the outside of the implant body a predetermined number of times, causing air in the first inner cavity to flow into the second inner cavity sequentially through the air outlet, the magnetic valve, and the air outlet pipe. Simultaneously, under the action of pressure difference, air in the multiple gaps between the first and second expansion layers flows into the first inner cavity through the air inlet pipe to maintain a constant air pressure in the first inner cavity. After air flows into the second inner cavity, under the action of pressure difference, the saline solution in the second inner cavity is transported to the permeable layer through the outlet pipe. Since the permeable layer is a fiber sheet with a large pore density composed of cotton fibers and synthetic fibers, it can quickly and uniformly transfer and absorb the saline solution transported by the outlet pipe. Because the water absorption efficiency of the expanded sponge particles in the first and second expansion layers is lower than that of the permeable layer, saline solution can flow through the gaps between the first and second expansion layers to the absorbent layer and be absorbed by it, thus preventing saline solution from remaining in the gaps. The numerous expanded sponge particles in the first and second expansion layers can uniformly absorb the saline solution in the permeable and absorbent layers and expand evenly and slowly. During the expansion of the large-sized expanded sponge particles in the first expansion layer, the small-sized expanded sponge particles in the second expansion layer can simultaneously expand and fill the gaps between the large-sized expanded sponge particles, further compressing the air in the gaps into the first inner cavity through the air inlet tube to maintain the air pressure in the first inner cavity. Because the material hardness of the inner wall of the spacer is greater than that of the implant body, after absorbing saline solution, the first and second expansion layers can expand uniformly in the direction away from the inner wall of the spacer, thereby achieving a single, slow expansion growth of the breast implant. When there is no magnetic force repelling the magnet's poles on the exterior of the implant, the magnetic valve is in an open-circuit state, sealing the air outlet. Even if the first inner cavity is squeezed, air in the first inner cavity will not flow into the second inner cavity, thus preventing accidental activation. After each expansion of the first and second expansion layers, the skin near the breast can be allowed to adapt to the expanded size of the breast implant and undergo slow, adaptive growth. Once the skin has adapted, the magnetic valve can be controlled again to squeeze the first inner cavity, causing the breast implant to expand and grow further. After multiple long-interval operations until the skin near the breast has adapted to the target cup size, a second surgery can be performed to remove the implant and replace it with a regular implant. Ultimately, only two surgeries are needed to achieve breast augmentation with multiple cup sizes, effectively avoiding the drawbacks of multiple breast augmentation surgeries. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. Wherein: Figure 1 A cross-sectional structural diagram of a two-stage adjustable breast implant provided for an embodiment of this application; Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure of the middle AA section; Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure of the middle BB section; Figure 4 A schematic diagram of the structure of the main body of a two-stage adjustable breast implant provided for embodiments of this application; Figure 5 A cross-sectional structural schematic diagram of a magnetic valve in a two-stage adjustable breast implant provided for an embodiment of this application; Figure 6 This is a schematic diagram illustrating the expansion direction of a two-stage adjustable breast implant after implantation in the human body, as provided in an embodiment of this application.

[0017] Explanation of reference numerals in the attached figures: 1. Prosthesis body; 101. First inner cavity; 101a. Inner plane; 102. Second inner cavity; 102a. Hard structural layer; 103. Third inner cavity; 104. Inner wall of isolation; 2. Expansion growth layer; 201. Permeable layer; 202. First expansion layer; 203. Second expansion layer; 204. Absorbent layer; 3. Magnetic valve; 3a. Air inlet; 301. Air outlet channel; 302. Slide groove; 303. Magnet; 303a. Vent hole; 304. Spring; 4. Air inlet pipe; 4a. First check valve; 5. Air outlet pipe; 5a. Second check valve; 6. Liquid outlet pipe; 6a. Third check valve; C. Physiological saline; D. Fiber sheets; E. Expanded sponge particles; F. Human body. Detailed Implementation

[0018] The present application will now be described in detail with reference to the accompanying drawings and embodiments. Various examples are provided by way of explanation and not by way of limitation. In fact, those skilled in the art will recognize that modifications and variations can be made to the present application without departing from the scope or spirit thereof. For example, a feature shown or described as part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desirable that the present application encompass such modifications and variations that fall within the scope of the appended claims and their equivalents.

[0019] In the description of this application, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and do not require that this application be constructed and operated in a specific orientation, and therefore should not be construed as limiting this application. The terms "connected," "linked," and "set up" used in this application should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; direct connections or indirect connections through intermediate components; wired connections, radio connections, or wireless communication signal connections. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0020] The accompanying drawings illustrate one or more examples of this application. The detailed description uses numerical and alphabetic designations to refer to features in the drawings. Similar or analogous designations in the drawings and description have been used to refer to similar or analogous parts of this application. As used herein, the terms “first,” “second,” and “third,” etc., are used interchangeably to distinguish one component from another and are not intended to indicate the location or importance of individual components. Example

[0021] like Figures 1 to 6 As shown in the embodiments of this application, a two-stage adjustable breast implant is provided, which includes an implant body 1, an expansion growth layer 2, a magnetic valve 3, an air inlet pipe 4, an air outlet pipe 5, and a liquid outlet pipe 6.

[0022] Specifically, the prosthesis body 1 is made of medical-grade silicone and has three independent cavities: a first cavity 101, a second cavity 102, and a third cavity 103. The first cavity 101 is spherical or ellipsoidal and is located near the spherical sidewall of the prosthesis body 1. The first cavity 101 contains physiological saline C. The second cavity 102 is hemispherical and spaced apart from the first cavity 101. The planar inner wall of the second cavity 102 is parallel to the planar sidewall of the prosthesis body 1. The third cavity 103 is bowl-shaped and coaxially covers the spherical inner wall of the second cavity 102. An insulating inner wall 104 separates the second cavity 102 and the third cavity 103. The second cavity 102 contains physiological saline C, and the insulating inner wall 104 has a hard structural layer 102a formed by a hard particulate material coating structure on the side near the second cavity 102, so that the hardness of the insulating inner wall 104 is greater than the hardness of the prosthesis body 1. The third inner cavity 103 is filled with an expansion growth layer 2, which includes a permeable layer 201, a first expansion layer 202, a second expansion layer 203, and an absorbent layer 204 arranged sequentially from the inner wall 104 toward the direction away from the inner wall. The permeable layer 201 and the absorbent layer 204 are made of multiple layers of cotton fiber material and / or synthetic fiber material, so that the permeable layer 201 and the absorbent layer 204 form a fibrous sheet D, and the pore density of the permeable layer 201 is greater than the pore density of the absorbent layer 204. The first expansion layer 202 and the second expansion layer 203 are filled with multiple expanded sponge particles E, and the size of a single expanded sponge particle E in the first expansion layer 202 is larger than the size of a single expanded sponge particle E in the second expansion layer 203. The first expansion layer 202 and the second expansion layer 203 have a large number of gaps. The inner wall of the first inner cavity 101 near the third inner cavity 103 has an inner plane 101a. A magnetic valve 3 is connected to the inner plane 101a. The magnetic valve 3 has mutually perpendicular air outlet channels 301 and slide grooves 302 inside. The end of the air outlet channel 301 opposite to the inner plane 101a has an air inlet 3a communicating with the air outlet channel 301. A magnet 303 and a spring 304 are arranged in the slide groove 302. The magnet 303 has a vent hole 303a. The magnet 303 can compress the spring 304 as it slides back and forth between a first position and a second position along the slide groove 302, so that the spring 304 reciprocates between a first compressed state and a second compressed state. By using an electromagnet 303 device on the outside of the prosthesis body 1, the magnetic valve 3 can be switched back and forth between an open state and an closed state.When there is no magnetic force repelling the magnetic poles of magnet 303 on the outside of the prosthesis body 1, the magnetic valve 3 is in an open circuit state. At this time, magnet 303 is in the first position, and spring 304 is in the first compressed state, so that magnet 303 abuts against the end of slide groove 302 away from spring 304 and closes the air outlet channel 301. When there is a magnetic force repelling the magnetic poles of magnet 303 on the outside of the prosthesis body 1, the magnetic valve 3 is in an open state. At this time, magnet 303 compresses spring 304 to the second compressed state under the action of repulsion and slides to the second position, so that vent 303a is connected to air outlet channel 301. The end of air outlet channel 301 away from air outlet is connected to second inner cavity 102 through air outlet pipe 5. First inner cavity 101 is connected to the space between first expansion layer 202 and second expansion layer 203 through air inlet pipe 4. The second inner cavity 102 is connected to the permeation layer 201 via the outlet pipe 6. The end of the outlet pipe 6 facing away from the permeation layer 201 extends to the spherical inner wall of the second inner cavity 102, facing away from the edge of the first inner cavity 101, so that when the saline solution C in the second inner cavity 102 drops, saline solution C can still be effectively delivered to the permeation layer 201. A first check valve 4a is connected to the vent pipe 5 to prevent saline solution C from flowing back from the second inner cavity 102 to the first inner cavity 101. A second check valve 5a is connected to the inlet pipe 4 to prevent air in the first inner cavity 101 from flowing back to the third inner cavity 103. A third check valve 6a is connected to the outlet pipe 6 to prevent saline solution C or air in the third inner cavity 103 from flowing back to the second inner cavity 102.

[0023] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects: An embodiment of this application provides a two-stage adjustable breast implant. After implantation into the human body F, the magnetic valve 3 can be controlled to be in an open or closed state by using an electromagnet 303 device on the outside of the implant body 1. When the outside of the implant body 1 has a magnetic force that repels the magnetic poles of the magnet 303, the magnetic valve 3 is in the closed state. At this time, when the first inner cavity 101 is squeezed from the outside of the implant body 1 a predetermined number of times by external force, the air in the first inner cavity 101 can flow into the second inner cavity 102 sequentially through the air outlet, the magnetic valve 3, and the air outlet pipe 5. At the same time, under the action of pressure difference, the air in the multiple gaps in the first expansion layer 202 and the second expansion layer 203 flows into the first inner cavity 101 through the air inlet pipe 4 to maintain a constant air pressure in the first inner cavity 101. After the air flows into the second inner cavity 102, under the action of pressure difference, the saline C in the second inner cavity 102 is transported to the permeable layer 201 through the liquid outlet pipe 6. Since the permeable layer 201 is a fibrous sheet D composed of cotton fibers and synthetic fibers with a large pore density, it can quickly and uniformly transfer and absorb the physiological saline C delivered by the outflow tube 6. Because the water absorption efficiency of the expanded sponge particles E in the first expansion layer 202 and the second expansion layer 203 is lower than that of the permeable layer 201, the physiological saline C can flow through the gaps between the first expansion layer 202 and the second expansion layer 203 to the absorbent layer 204 and be absorbed by it, thus preventing the physiological saline C from remaining in the gaps. The numerous expanding sponge particles E in the first expansion layer 202 and the second expansion layer 203 can uniformly absorb the saline solution C in the permeation layer 201 and the absorption layer 204 and expand uniformly and slowly. During the process of the large-sized expanding sponge particles E in the first expansion layer 202 absorbing water and expanding, the small-sized expanding sponge particles E in the second expansion layer 203 can simultaneously expand and fill the gaps between the large-sized expanding sponge particles E, and further compress the air in the gaps into the first inner cavity 101 through the air inlet pipe 4 to maintain the air pressure in the first inner cavity 101. Since the material hardness of the inner wall of the spacer is greater than that of the implant body 1, after absorbing the saline solution C, the first expansion layer 202 and the second expansion layer 203 can expand uniformly in the direction away from the inner wall of the spacer, thereby achieving a single slow expansion growth of the breast implant. When there is no magnetic force repelling the magnetic poles of magnet 303 on the exterior of the implant body 1, the magnetic valve 3 is in an open-circuit state to close the air outlet 5. At this time, even if the first inner cavity 101 is squeezed, the air in the first inner cavity 101 will not flow into the second inner cavity 102, thus avoiding accidental activation. After each expansion of the first expansion layer 202 and the second expansion layer 203, the skin near the breast can be allowed to adapt to the expanded size of the breast implant and undergo slow adaptive growth. After the skin has adapted and grown, the magnetic valve 3 can be controlled again to squeeze the first inner cavity 101, so that the breast implant can further expand and grow slowly.After multiple procedures with long intervals until the skin around the breast adapts and grows to the target cup size, a second surgery can be performed to remove the breast implant and replace it with a regular implant. Ultimately, only two surgeries are needed to achieve the goal of increasing breast size by multiple cup sizes, thus effectively avoiding the drawbacks of multiple breast augmentation surgeries.

[0024] The above descriptions are merely some embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A two-stage adjustable breast prosthesis, characterized by, The prosthesis body is made of medical silicone and has a hemispherical shape. The prosthesis body has a first inner cavity, a second inner cavity and a third inner cavity which are not connected to each other. The first inner cavity has a spherical or ellipsoidal shape and is arranged near the spherical side wall of the prosthesis body. The first inner cavity contains physiological saline. The second inner cavity has a hemispherical shape and is arranged separately from the first inner cavity. The inner wall of the second inner cavity is parallel to the flat side wall of the prosthesis body. The third inner cavity has a bowl shape and is coaxially covered on the spherical inner wall of the second inner cavity. The second inner cavity and the third inner cavity have an isolation inner wall. The expansion growth layer is made of a material with water absorption and expansion properties and is built-in in the third inner cavity. The air inlet pipe is connected to the first inner cavity and the third inner cavity. The air outlet pipe is connected to the first inner cavity and the second inner cavity. The liquid outlet pipe is connected to the second inner cavity and the third inner cavity.

2. The adjustable breast prosthesis according to claim 1, wherein The expansion growth layer includes a permeation layer, a first expansion layer, a second expansion layer and an absorption layer which are arranged in sequence from the direction away from the isolation inner wall. The first expansion layer and the second expansion layer each have a plurality of spaced gaps which are connected to each other. One end of the air inlet pipe extends to the first expansion layer and / or the second expansion layer and is connected to the spaced gaps. The other end of the air inlet pipe is connected to the first inner cavity. One end of the liquid outlet pipe extends to the edge of the spherical inner wall away from the first inner cavity. The other end of the liquid outlet pipe extends to the permeation layer.

3. The adjustable breast prosthesis according to claim 2, wherein The air inlet pipe is connected to a first check valve. The air outlet pipe is connected to a second check valve. The liquid outlet pipe is connected to a third check valve. Further comprising:

4. A two-stage adjustable breast prosthesis according to claim 2 or 3, wherein, A magnetic valve is built-in in the first inner cavity and connected to the inner wall of the first inner cavity. The magnetic valve is connected to the air outlet pipe. The magnetic valve has a pass-through state and a break state. When the magnetic valve is in the pass-through state, the first inner cavity is connected to the second inner cavity through the magnetic valve and the air outlet pipe in sequence. When the magnetic valve is in the break state, the magnetic valve closes the air outlet pipe.

5. The adjustable breast prosthesis according to claim 4, wherein The magnetic valve has an air outlet channel and a sliding groove which are perpendicular to each other. One end of the air outlet channel has an air inlet. The other end of the air outlet channel is connected to the air outlet pipe. A magnet is arranged in the sliding groove. The magnet has an air hole. The magnet can slide back and forth in the sliding groove and has a first position and a second position in the sliding groove. When the magnetic valve is in the break state, the magnet is in the first position and closes the air outlet channel. When the magnetic valve is in the pass-through state, the magnet is in the second position and the air hole is connected to the air outlet channel.

6. The adjustable breast prosthesis according to claim 5, wherein ​ The chute is further provided with a spring, two ends of the spring abutting against the magnet and one end of the chute respectively, the spring having a first compression state and a second compression state; When the magnet is in the first position, the spring is in the first compression state; When the magnet is in the second position, the spring is in the second compression state.

7. The two-stage adjustable breast prosthesis according to claim 2, wherein: The permeable layer and the absorbent layer are made of multiple layers of cotton fiber material and / or artificial fiber material stacked and staggered; The first expansion layer and the second expansion layer are filled with multiple expansion sponge particle materials.

8. The two-stage adjustable breast prosthesis according to claim 7, wherein: The porosity of the permeable layer is greater than the porosity of the absorbent layer; The size of the single expansion sponge particle in the first expansion layer is greater than the size of the single expansion sponge particle in the second expansion layer.

9. The two-stage adjustable breast prosthesis according to claim 1, wherein: The isolation inner wall has a hard structure layer near one side of the second inner cavity; and / or The isolation inner wall has a hard structure layer near one side of the third inner cavity.

10. The two-stage adjustable breast prosthesis according to claim 9, wherein: The hard structure layer is a hard material made of a rib structure; and / or The hard structure layer is a hard particle material formed into a coating structure.

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