Bionic pressure adjusting device

Abstract

According to the bionic pressure adjusting device, controllable radial compression force is applied to at least one annular local area of the soft rubber body through the compression element arranged at the preset position of the soft rubber body, and the part of a user is selectively wrapped through local preferential deformation. Meanwhile, periodic driving force is generated through a manual or electric driving unit, and various working modes such as pressure maintaining or rhythm are achieved in combination with adjustable interval control; liquid drive is introduced to realize linear pressure regulation and constant temperature control, and a negative pressure adsorption effect can be selectively generated. The device has the characteristics of local compression, adjustable tightness, multiple driving modes, accurate temperature control and the like, can provide multi-level and personalized use experience, and is widely applied to the fields of human body physiotherapy and health care and the like.

Description

Technical Field

[0001] This invention relates to the field of human physiotherapy and health care devices, and more specifically, to a biomimetic pressure regulation device capable of achieving localized preferential deformation, periodic actuation, and liquid actuation. Background Technology

[0002] In existing bionic devices, the tightness of the soft gel against the user's body is mostly designed with fixed dimensions, making it impossible to adjust according to individual user differences and preferences. Some devices use airbags for propulsion, but these mostly involve uniform compression across the entire surface, making it difficult to create controllable localized pressure at specific locations or generate negative pressure adsorption, resulting in insufficient comfort and stability. Furthermore, existing devices typically use only gas as the driving medium, which is optional and fails to meet the needs of different usage scenarios. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention aims to provide a biomimetic pressure regulating device to solve the following problems existing in the prior art:

[0004] 1. It cannot achieve personalized adjustment of the tightness of the wrap;

[0005] 2. Lack of localized deformation design results in a monotonous user experience;

[0006] 3. It cannot produce a stable negative pressure adsorption effect, resulting in insufficient enveloping sensation and stability in use;

[0007] 4. The driving medium is singular, making it impossible to achieve the unique effects of liquid-driven operation;

[0008] 5. It cannot achieve a periodic rhythmic feel with adjustable intervals.

[0009] To achieve the above objectives, the technical solution adopted by the present invention is: a biomimetic pressure regulating device, comprising: a soft colloid having a receiving cavity for a user's head to enter; at least one compression element disposed at a predetermined position of the soft colloid, the compression element being configured to generate radial compression force under the drive of a medium; and a driving unit connected to the compression element for driving the medium to generate pressure changes within the compression element; wherein the compression element and the soft colloid are configured such that, under the action of the radial compression force, the radial deformation of at least one annular local region of the soft colloid is greater than that of other regions of the soft colloid.

[0010] The compression element is a capsule.

[0011] The capsule is a ring-shaped capsule.

[0012] The annular capsule has multiple chambers.

[0013] The outer wall thickness of the annular capsule is greater than that of the inner wall thickness.

[0014] The material hardness of the annular capsule is greater than that of the soft colloid.

[0015] The drive unit includes a manual drive unit and / or an electric drive unit, as well as at least one pressure control element.

[0016] The manual drive unit includes an airbag connected to the pressure control element.

[0017] The electric drive unit includes at least one drive actuator connected to the pressure control element for driving the medium to generate pressure changes within the compression element.

[0018] It also includes a control unit, which is electrically connected to the drive actuator and is used to control the operation of the drive actuator.

[0019] The device is configured to perform a negative pressure working mode: before the user's body part is inserted, the compression element is in a contracted state to expel air between the soft gel and the user's body part; after the user's body part is inserted, the compression element expands to form a sealed cavity between the soft gel and the user's body part and generate a negative pressure adsorption effect.

[0020] It also includes: an outer coating layer, which at least partially covers the outside of the soft colloid;

[0021] At least one embedded part is disposed on the outer wrapping layer and communicates with the compression element.

[0022] It also includes: a heating element disposed inside the compression element; and at least one temperature sensor disposed on the soft colloid or the outer coating layer.

[0023] At least one annular sealing rib is provided on the contact surface between the soft colloid and the user's part.

[0024] The beneficial effects of the present invention: Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. Localized priority deformation: Enables selective wrapping of user parts, resulting in a richer user experience.

[0026] 2. Adjustable tightness: By squeezing the pressure control element, a variety of wrapping sensations from gentle to tight can be achieved.

[0027] 3. Flexible drive options: manual and electric are both available, with electric drive covering a variety of actuator types.

[0028] 4. Adjustable interval control: The drive frequency can be adjusted by the control unit to achieve various squeezing rhythms.

[0029] 5. Negative pressure adsorption: can selectively produce negative pressure adsorption effect.

[0030] 6. Liquid-driven: Enables high-precision control and constant-temperature wrapping.

[0031] 7. Precise temperature control: Real-time monitoring and feedback control via temperature sensors ensure the accuracy and stability of the constant temperature effect.

[0032] 8. Embedded parts: By integrating four major functions—conduit docking, precise positioning, electrical connection, and mounting base—the device structure is significantly simplified, and assembly efficiency and connection reliability are improved.

[0033] 9. Negative pressure assembly process: By drawing negative pressure, the capsule shrinks and easily fits into the inner blank, avoiding damage caused by rigid assembly and improving the yield rate.

[0034] 10. Fully enclosed structure: Through the height difference design of the first mold and the second mold, the outer material can completely enclose the top and bottom of the inner layer, avoiding the inner layer from being exposed.

[0035] 11. Process optimization: By using a process of threading wires first and then bonding them, the heating element is accurately positioned, avoiding the difficulty of threading wires after bonding.

[0036] 12. Convenient manual operation: Through the cooperation of the pressurizing and depressurizing elements with the auxiliary airbag, users can intuitively and conveniently perform manual pressurization and depressurization operations. Attached Figure Description

[0037] Figure 1 This is a planar schematic diagram of the capsule of the present invention, showing the annular structure and the distribution of the chambers;

[0038] Figure 2 This is a cross-sectional view of the capsule of the present invention, showing the differentiated design where the outer ring wall thickness is greater than the inner ring wall thickness;

[0039] Figure 3 This is a schematic diagram of the capsule preparation process of the present invention, showing the injection and bonding steps of two semi-annular sheets;

[0040] Figure 4 This is a schematic diagram of the overall device of the present invention, showing the assembly relationship of the external valve body, soft colloid, annular sealing rib, bladder, embedded part, conduit, heating element, and the expansion state of the compression element;

[0041] Figure 5 This is a schematic diagram of the external structure of the external valve body, showing the layout of the display screen, intermittent regulator, operation buttons, and squeeze bar;

[0042] Figure 6 This is a schematic diagram of the internal structure of the external valve body of the present invention, showing the integration relationship of the control unit, drive actuator, auxiliary airbag, storage battery, pressurizing element, depressurizing element, and filling port;

[0043] Figure 7 This is a schematic diagram of the overall structure of the capsule of the present invention, showing the assembly relationship of the capsule, heating wire, interface component, conduit, and embedded component;

[0044] Figure 8 This is a schematic diagram of the first mold of the present invention, showing the cavity structure of the first mold;

[0045] Figure 9 This is a schematic diagram of the second mold of the present invention, showing the cavity structure of the second mold;

[0046] Figure 10 This is a schematic diagram of the internal structure of the second mold of the present invention, showing the multi-functional positioning pin and the fixing method of the embedded parts.

[0047] In the diagram: 1-Compression element; 2-Cavity; 3-Inner ring wall thickness; 4-Outer ring wall thickness; 5-Outer wrapping layer; 6-Soft colloid; 7-Annular sealing rib; 8-External valve body; 9-Pressure squeezing rod; 10-Pressure element; 11-Stop valve; 12-Solenoid valve; 13-Intermittent regulator; 14-Secondary airbag; 15-Battery; 16-One-way valve; 17-Filling port; 18-Control unit; 19-Pressure squeezing rod; 20-Pressure reducing element; 21-Hollow conduit positioning pin; 22-Vent hole; 23-Spring; 24-Valve core; 25-Push rod; 26-Temperature sensor; 27-Operating button; 28-Display screen; 29-Screw; 30-Interface component; 31-Heating wire; 32-Conduit; 33-Metal ring; 34-Embedded part; 35-Sealing ring; 36-Reinforcing rib; 37-Screw hole; 38-Conduit hole; 39-Fixing mold core; 40-First mold; 41-First cavity; 42-Second mold; 43-Inner blank; 44-Second cavity; 45-Multi-functional positioning pin. Detailed Implementation

[0048] The following embodiments are merely illustrative examples, intended to more clearly illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the present invention. The specific values, materials, steps, etc., in the embodiments can be reasonably selected and adjusted by those skilled in the art according to actual needs after reading this specification, and all such adjustments fall within the scope of the present invention.

[0049] like Figures 1-10 As shown;

[0050] 1. Core Structure, Localized Preferred Deformation: The core of this invention lies in providing a compression element 1, which preferably has multiple chambers 2 disposed at predetermined positions on a soft gel 6 and is configured to apply a controllable radial compression force to at least one annular local area of ​​the soft gel to adjust the tightness of the soft gel's wrapping around the user's area. The annular local area deforms significantly more than other areas of the soft gel under the compression force, thereby achieving localized preferential deformation. The compression element can be an integral annular capsule or a single, monolithic annular capsule.

[0051] (For ease of description, the terms "compression element" and "airbag" or "bag body" may be used interchangeably when referring to this specific embodiment.)

[0052] This "preferred deformation" design can be achieved in various ways, including but not limited to:

[0053] The compression element has different wall thicknesses or structures at corresponding local areas;

[0054] The soft colloid has different thicknesses or material hardness in local areas;

[0055] The combination of the compression element and the soft colloid design allows the compressive force to be concentrated in a localized area.

[0056] 2. Drive Unit

[0057] The device of the present invention further includes two drive units connected to the compression element, which are used to drive the medium to generate pressure changes within the compression element. The drive units are manual drive units and / or electric drive units.

[0058] 2.1 Specific Implementation of the Manual Drive Unit

[0059] As a preferred embodiment of the manual drive unit, the manual drive unit includes:

[0060] Auxiliary airbag 14: Located on the external valve body 8, used to store and drive the medium;

[0061] Pressurization element 10: Connected to the auxiliary airbag, used for manual pressurization operation. When the pressurization lever 9 is pressed, the medium flows into the compression element through the conduit;

[0062] Pressure reducing element 20: Connected to the auxiliary airbag, used for manual pressure reduction operation. When the pressure reducing squeeze rod 19 is pressed, the medium flows from the compression element back to the auxiliary airbag through the pressure reducing element.

[0063] The pressurizing element and the depressurizing element are collectively referred to as pressure control elements.

[0064] It should be noted that, depending on the catheter design, the pressurizing element and the depressurizing element can be two separate elements or the same element.

[0065] 2.2 Specific Implementation of the Electric Drive Unit

[0066] As a core component of the electric drive unit, the electric drive unit includes at least one drive actuator 12, which is configured to apply a periodic driving force to the pressure control element to achieve periodic compression of the compression element.

[0067] The drive actuator can be implemented in various ways, including but not limited to solenoid valve drive, motor-driven crank-slider mechanism, linear motor, voice coil motor, piezoelectric actuator, etc.

[0068] 3. Control unit and human-computer interaction

[0069] Control unit; two selectable operating modes; the control unit is configured to independently execute two different operating modes, which the user can freely choose according to their needs.

[0070] Pressure Holding Mode: In pressure holding mode, the control unit drives the compression element to a sealed state and maintains this pressure constant until the user releases the pressure or the set time ends. This mode is suitable for scenarios requiring a stable and continuous feeling of envelopment.

[0071] Rhythm mode; In rhythm mode, the control unit drives the compression element to perform periodic squeezing, creating a regular rhythmic feel.

[0072] As a preferred embodiment, the control unit can be integrated into an external valve body, and the valve body is provided with:

[0073] Display screen 28: Used to display information such as the current working mode, squeezing interval time, and battery level in real time;

[0074] Intermittent regulator 13: Used to adjust the duration of the "stationary phase" in the working cycle, and can be a rotary encoder, a sliding potentiometer or a multi-position switch;

[0075] Operation button 27: includes at least a mode selection button, an intensity adjustment button, and a start / stop button;

[0076] Extrusion rods 9 and 19: can be used as manual auxiliary operation components to apply pressure to the pressure-reducing elements inside the valve body.

[0077] Hollow conduit positioning pin 21: Used to assist in the docking and positioning of the valve body and the embedded parts during the assembly process.

[0078] 4. Negative pressure working mode

[0079] As an optional operating mode of the present invention, the device can be configured to perform a negative pressure operating mode: before the user's body is inserted, the compression element is in a contracted state, thereby relaxing the local area and allowing air to escape freely; after the user's body is inserted, the compression element is then in an expanded state, applying radial compression force to the local area. This process allows for the selective formation of a sealed cavity between the soft colloid and the user's body, generating a negative pressure adsorption effect within the sealed cavity.

[0080] 5. Media Selection

[0081] The compression element can be selectively injected with a gaseous or liquid medium. When a liquid medium is injected, the incompressibility and heat capacity of the liquid allow for precise adjustment of the tightness of the wrapping and constant temperature maintenance. Liquid media may include water, silicone oil, or saline solution, etc. Gaseous media may include air or carbon dioxide, etc.

[0082] 6. Heating element and temperature sensor

[0083] This device may also include a heating element 31, which may be disposed inside the compression element for heating the flowing medium. As an example, the heating element may be a heating wire, electrically connected by a fixing screw 29.

[0084] To achieve precise temperature control, the device may also include at least one temperature sensor 26 disposed on the soft colloid. The temperature sensor may be electrically connected to the control unit for real-time detection of the surface temperature of the soft colloid or the user's area.

[0085] 7. Filling port

[0086] The device may also include a filling port 17, which may be equipped with a one-way valve for selectively filling the system with a gaseous or liquid medium.

[0087] 8. Internal circulation system

[0088] This device may also include an internal circulation system, which drives the medium to circulate within a closed system to control the pressurization and depressurization of the compression element. The internal circulation system can be integrated into an external valve body, allowing for manual or automatic control of the medium's inlet and outlet.

[0089] 9. Differentiated wall thickness design of airbags

[0090] As a preferred embodiment for achieving localized preferential deformation, the compression element can be an annular bladder, with the outer ring wall thickness being greater than the inner ring wall thickness. For example, the outer ring wall thickness 4 can be approximately 4 mm, and the inner ring wall thickness 3 can be approximately 1 mm.

[0091] This design has a dual function:

[0092] Assembly function: When the bladder is in a contracted state, the inner thin wall deforms first, which expands the inner diameter of the air bladder, making it easier to fit the air bladder onto the outside of the soft colloid.

[0093] Function: When the bladder is inflated, the outer thick wall provides sufficient structural support, allowing the air bladder to apply uniform radial extrusion force to the soft colloid.

[0094] 10. Enhanced sealing structure

[0095] To further improve sealing performance, at least one annular sealing rib 7 may be provided on the contact surface between the soft colloid and the user's part. When the compression element expands, these annular sealing ribs form multiple contacts with the user's part, creating multiple sealing lines and enhancing the sealing effect. As an example, the annular sealing ribs may be set to about 1-3, with a height of about 0.5-2 mm and a spacing of about 2-5 mm.

[0096] 11. Capsule assembly process

[0097] When assembling the capsule onto the outside of the inner preform, installation is assisted by a positioning structure, including: shrinking the capsule and fitting it onto the inner preform, releasing the shrinkage to make it fit, and then performing outer layer injection.

[0098] 12. Preparation method of ring-shaped capsules

[0099] The annular capsule was prepared by a half-injection and reconnection method:

[0100] Two semi-annular sheets are injection molded separately, with at least one semi-annular sheet having an embedded interface component.

[0101] Insert the heating element into the predetermined position;

[0102] Two semi-annular sheets are connected to each other to form an annular cyst with multiple chambers;

[0103] Connect the conduit to the interface fitting.

[0104] 13. Preparation method of the overall device

[0105] The device of the present invention can be fabricated using a two-layer injection molding process:

[0106] 13.1 Inner layer molding (first mold)

[0107] The fixed mold core 39 is combined with the first mold 40 to form the first cavity 41. The height of the first cavity is less than the total height of the final product, reserving space for subsequent outer layer wrapping. Inner layer material (such as platinum vulcanized silicone A-5 to A5 degrees) is injected and vulcanized to form an inner layer blank (soft colloid), which is attached to the fixed mold core.

[0108] 13.2 Outer layer molding (second mold)

[0109] Remove the first mold and combine the fixed mold core with the inner layer blank 43 with the second mold 42 to form the second cavity 44. The height of the second cavity is equal to the total height of the final product, with its bottom lower than the bottom of the inner layer blank and its top higher than the top of the inner layer blank, to ensure that the outer layer material can completely cover the top and bottom of the inner layer. Inject the outer layer material (such as platinum vulcanizing silicone A5-A25 degrees), and after vulcanization, form the outer coating layer 5.

[0110] 14. Process Parameters

[0111] As an example, during injection molding, the mold temperature can be controlled at approximately 110-170°C, the injection pressure at approximately 30-80 bar, the injection speed at approximately 15-100 mm / s, and the vulcanization time at approximately 120-500 seconds. Those skilled in the art can optimize and determine the specific parameters through routine testing based on the characteristics of the selected material and the product dimensions.

[0112] The working principle of the valve body's internal circulation system; such as Figure 6 As shown, the external valve body is equipped with an internal circulation system, which includes a pressurizing element 10 and a depressurizing element 20. The pressurizing element 10 and the depressurizing element 20 are each equipped with a hollow positioning pin 21. One end of the positioning pin is exposed and used to insert into the conduit hole 38 of the embedded part 34 to achieve air circuit connection. The other end of the positioning pin has a lateral vent hole 22, which communicates with the interior of the pressure control element.

[0113] A valve core 24 is provided at the lateral vent 22, and the valve core is connected to the push rod 25. A spring 23 is located behind the valve core. The spring 23 always pushes the valve core 24 to seal the lateral vent 22, keeping the air passage in a cut-off state. When the push rod 25 is pressed by an external force, the push rod drives the valve core 24 to move backward, opening the lateral vent 22, opening the air passage, and allowing the medium to flow into or out of the compression element through the positioning pin. After the external force disappears, the spring 23 pushes the valve core 24 to reset, resealing the vent and cutting off the air passage. This structure achieves reliable air passage on / off control.

[0114] Differential wall thickness and hardness design of the annular bladder; as a preferred solution for achieving localized preferential deformation of the compression element, the compression element can be an annular bladder, with the outer ring wall thickness being greater than the inner ring wall thickness. Simultaneously, its material hardness can be set to be higher than that of the inner layer blank it contacts.

[0115] Since the capsule is typically located between the soft gel and the outer covering layer, its inner ring has a thin-walled structure and its outer ring has a thick-walled structure. Under pressure, the thin-walled inner ring is more likely to deform radially towards the center, thus preferentially expanding or contracting inward, ensuring a more precise and gentle fit to the user's body.

[0116] Furthermore, this differentiated wall thickness and hardness design also offers the following synergistic advantages:

[0117] Easy to assemble: The thin-walled inner ring is more likely to shrink under negative pressure to expand the inner diameter, making it easier to fit the capsule into the mold core or inner blank.

[0118] Easy to inject: The thick-walled outer ring has better compressive strength and shape retention during the secondary injection molding process, which can ensure that the capsule is accurately positioned in the mold and is not easily deformed.

[0119] Structural stability: The capsule acts as an "intermediate layer," providing support and cushioning between the inner and outer layers. The difference in hardness helps prevent it from being crushed or displaced by the outer layer material during injection.

[0120] The definition and implementation principle of the rhythmic pattern; the control unit can be configured to execute a periodic rhythmic pattern. Within one working cycle, it can sequentially include a pressurization phase, a rest phase, and a depressurization phase.

[0121] The duration of the static phase can be configured to be independently adjusted by the intermittent regulator.

[0122] By adjusting the duration of the static phase, various different working sub-modes can be generated, for example:

[0123] First working mode: The duration of the static phase approaches zero, forming continuous pulsations.

[0124] Second working mode: Maximize the duration of the static phase to form continuous pressure holding.

[0125] The third working mode: the duration of the static phase is between zero and the maximum value, forming a standard rhythm.

[0126] The control unit can also be configured to adjust the duration of each stage of pressurization, quiescence, and depressurization, or to form a variety of custom modes through a combination of multiple different cycle settings.

[0127] Hybrid mode and constant temperature control principle; the device can be configured to support hybrid mode, that is, during electric mode operation, the user can intervene at any time through manual squeezing rod to achieve instant pressure adjustment.

[0128] In terms of temperature control, the temperature sensor can monitor the temperature of the soft colloid in real time and feed the data back to the control unit, which can adjust the power of the heating element to maintain the set constant temperature.

[0129] A general structure for positioning and connecting the embedded part to the conduit; to achieve rapid and accurate positioning and fluid / electrical connection of the bladder assembly within the mold, a structure in which a multi-functional positioning pin (45) mates with the embedded part can be used. Specifically, the embedded part, which includes the air bladder, heating wire, and conduit, can be placed in a predetermined position in the second mold. The mold is equipped with a multi-functional positioning pin, which also serves as the conduit interface. The conduit hole on the embedded part is fitted into the positioning pin to achieve accurate positioning and complete the conduit connection.

[0130] As a preferred embodiment, the embedded part is a multifunctional integrated embedded component, which includes a conduit connection part and a composite interface part. The conduit connection part is used for the docking and positioning of the fluid passage, while the composite interface part is provided with screw holes 37, through which electrical connections can be made later, and also serves as a mounting base for an external valve body.

[0131] Example 1: Fully Integrated Manual / Electric Unit

[0132] This embodiment illustrates a fully integrated manual / electric device, the core structure of which may include:

[0133] Annular capsule: Made of Shore A approximately 30 degree silicone material (such as platinum vulcanized silicone), with an outer wall thickness of approximately 4 mm and an inner wall thickness of approximately 1 mm.

[0134] Soft colloid: It can adopt a double-layer structure, with the inner layer made of softer silicone and the outer layer made of slightly harder silicone; the outer silicone layer can be provided with temperature sensor mounting holes.

[0135] External valve body: The size can be designed to be approximately 90×70×30mm. It integrates a drive actuator (such as normally closed solenoid valve 12), control unit 18, battery 15, pressure control elements (including pressurizing element 10 and pressure reducing element 20), auxiliary air bag 14 and filling port 17.

[0136] External valve body: may be equipped with display screen 28, intermittent regulator 13, operation button 27, squeeze bar 9, 19, temperature sensor 26 and hollow conduit positioning pin 21.

[0137] • Embedded component 34: Located on top of the soft colloid, it communicates with the annular bladder via a conduit and also serves as the electrical interface for the heating element. The embedded component may have conduit holes and screw holes, which are interconnected by reinforcing ribs 36.

[0138] Heating element: The heating wire 31 passes through the conduit 32 and is electrically connected to the embedded part.

[0139] Temperature sensor: installed in a pre-drilled hole in the soft colloid and electrically connected to the control unit.

[0140] Manual mode operation: Both the shut-off valve 11 on the pressurization path and the shut-off valve on the depressurization path are normally closed. When the user presses the pressurization element inside the valve body using the pressurization squeeze rod, the shut-off valve on the pressurization path opens, while the shut-off valve on the depressurization path remains closed. The medium flows unidirectionally into the compression element under the guidance of the one-way valve 16, causing it to expand. When the user presses the internal depressurization element using the depressurization squeeze rod, the shut-off valve on the depressurization path opens, while the shut-off valve on the pressurization path remains closed. Gas flows back to the auxiliary air bladder through the depressurization element, and the compression element contracts. When neither pressurization nor depressurization occurs, both shut-off valves return to their normally closed state, keeping the compression element in an expanded state.

[0141] Example 2: Gas-Liquid Dual-Use Mode

[0142] This embodiment illustrates an operational example of a gas-liquid dual-use mode:

[0143] When a gaseous medium is selected, air can be injected through the filling port to achieve rapid pneumatic control.

[0144] When a liquid medium is selected, warm water at approximately 40°C can be injected through the filling port. The incompressibility of the liquid provides a more linear feel, while the battery powers the heating element and the control unit maintains a constant temperature based on feedback from the temperature sensor.

[0145] Example 3: Enhanced Sealing Structure

[0146] This embodiment schematically provides an enhanced sealing structure. For example, three annular sealing ribs can be provided on the contact surface between the inner layer of the soft gel and the user's area. The sealing ribs can have a semi-circular cross-section, a height of approximately 1 mm, and a spacing of approximately 3 mm. When the airbag inflates, these annular sealing ribs can form multiple sealing lines to enhance the sealing effect.

[0147] Example 4: Construction and assembly of the annular capsule assembly

[0148] This embodiment provides a ring-shaped capsule assembly, which is composed of the following components and assembled as required:

[0149] Annular capsule 1: Prepared by half-bonding, with platinum vulcanized silicone preferred to ensure good elasticity and compatibility with the inner and outer layers.

[0150] Interface component 30: Pre-embedded in the annular capsule, made of high-temperature resistant plastic, used to connect the conduit and allow the power heating wire to pass through.

[0151] Heating wire 31: Constantan wire is preferred, used for electric heating, and its wire diameter can be determined according to the power requirements using conventional methods.

[0152] Conduit 32: Made of platinum-cured silicone tubing. To avoid residues on the surface of commercially available products affecting adhesion, it requires secondary curing treatment and deep cleaning before bonding.

[0153] Metal ring 33: Nickel-plated surface, used to press the heating wire and ensure reliable electrical connection.

[0154] Embedded part 34: The surface is nickel plated and it is provided with a guide hole and a blind screw hole. The guide hole is provided with a sealing ring groove for installing the sealing ring 35.

[0155] Reinforcing rib 36: Connected between each embedded part 34, made of high-temperature resistant plastic, used to prevent the embedded parts from shifting during injection molding and to enhance the structural strength of the base after molding.

[0156] Before assembly, all surfaces of the parts that need to be bonded must be thoroughly cleaned.

[0157] Example 5: Method for preparing annular capsules

[0158] This embodiment provides a method for preparing an annular capsule, which is expected to be implemented according to the following steps:

[0159] Step 1: Half-sheet injection molding: Two semi-annular sheets are injection molded separately. At least one of the semi-annular sheets has an interface component 30 pre-embedded during injection. The preferred material is platinum-cured silicone, with a Shore A hardness of 25-35. Injection molding can be performed using conventional silicone injection molding processes in this field.

[0160] Step 2: Heating element arrangement: Before bonding the two semi-annular plates, insert the heating element 31 into the predetermined position. The two ends of the heating element pass through the interface piece (30) in preparation for connection with the external circuit.

[0161] Step 3: Sheet Connection: Apply adhesive (e.g., uncured silicone or special silicone adhesive) to the joint surfaces of the two semi-annular sheets. Align the two sheets together and join them. Apply heat and pressure to bond them together to form a complete annular capsule 1. During the bonding process, the heating element is encapsulated inside the capsule.

[0162] Step 4: Conduit Connection: Connect the heating element through the conduit 32 to the embedded part 34 to achieve electrical connection. Connect and seal one end of the conduit 32 to the interface part 30, and connect and seal the other end of the conduit to the embedded part 34.

[0163] Through the above steps, it is expected that an annular capsule with an internal chamber and a built-in heating element can be obtained.

[0164] Example 6: Preparation method of the overall device

[0165] This embodiment provides a method for preparing a fully encapsulated device, specifically including the following steps:

[0166] 1. Inner layer molding: The first mold is evacuated to -0.1MPa and held for 30 seconds. Platinum vulcanizing silicone with a Shore A hardness of -5 to 5 is injected and vulcanized at about 110-130℃ to obtain the inner layer blank.

[0167] 2. Surface treatment: Clean the surface of the inner layer blank and the annular bladder, spray adhesive, and dry at about 100-110℃ for 10-15 minutes.

[0168] 3. Capsule Assembly: The annular capsule is fixed into the second mold using the embedded part 34. A vacuum is drawn inside the capsule to shrink it and fit it into the inner blank. Gas is then introduced into the capsule to expand it and make it fit against the blank. Finally, the pressure is released.

[0169] 4. Preparation for outer layer injection: Evacuate the cavity of the second mold to about -0.1MPa and hold the pressure for 20-30 seconds.

[0170] 5. Outer layer injection: Inject platinum-cured silicone with a Shore A hardness of 5 to 25. The injection process is controlled in stages: the first stage is slow injection at about 30-50% of the standard pressure, prioritizing the coverage of thin-walled areas; the second stage increases the pressure to about 50-70% of the standard pressure to complete the cavity filling.

[0171] 6. Demolding: After naturally cooling in the mold to about 60°C, demold to obtain the complete device.

Claims

1. A biomimetic pressure regulating device, characterized in that, include: A soft gel with a receiving cavity for the user to insert their head; At least one compression element is disposed at a predetermined position in the soft colloid, the compression element being configured to generate radial compressive force under media-driven conditions; A driving unit, connected to the compression element, is used to drive the medium to generate a pressure change within the compression element; wherein the compression element and the soft colloid are configured such that, under the action of the radial compression force, the radial deformation of at least one annular local region of the soft colloid is greater than that of other regions of the soft colloid.

2. The biomimetic pressure regulating device according to claim 1, characterized in that, The compression element is a capsule.

3. The biomimetic pressure regulating device according to claim 2, characterized in that, The capsule is a ring-shaped capsule.

4. The biomimetic pressure regulating device according to claim 3, characterized in that, The annular capsule has multiple chambers.

5. The biomimetic pressure regulating device according to claim 3, characterized in that, The outer wall thickness of the annular capsule is greater than that of the inner wall thickness.

6. The biomimetic pressure regulating device according to claim 3, characterized in that, The material hardness of the annular capsule is greater than that of the soft colloid.

7. The biomimetic pressure regulating device according to claim 1, characterized in that, The drive unit includes a manual drive unit and / or an electric drive unit, as well as at least one pressure control element.

8. A biomimetic pressure regulating device according to claim 7, characterized in that, The manual drive unit includes an airbag connected to the pressure control element.

9. A biomimetic pressure regulating device according to claim 7, characterized in that, The electric drive unit includes at least one drive actuator connected to the pressure control element for driving the medium to generate pressure changes within the compression element.

10. A biomimetic pressure regulating device according to claim 9, characterized in that, It also includes a control unit, which is electrically connected to the drive actuator and is used to control the operation of the drive actuator.

11. A biomimetic pressure regulating device according to claim 1, characterized in that, The device is configured to perform a negative pressure working mode: before the user's body part is inserted, the compression element is in a contracted state to expel air between the soft gel and the user's body part; after the user's body part is inserted, the compression element expands to form a sealed cavity between the soft gel and the user's body part and generate a negative pressure adsorption effect.

12. The biomimetic pressure regulating device according to claim 1, characterized in that, Also includes: An outer coating layer, at least partially encapsulating the exterior of the soft colloid; At least one embedded part is disposed on the outer wrapping layer and communicates with the compression element.

13. A biomimetic pressure regulating device according to claim 12, characterized in that, Also includes: A heating element is disposed inside the compression element; At least one temperature sensor is disposed on the soft colloid or the outer coating layer.

14. The biomimetic pressure regulating device according to claim 1, characterized in that, At least one annular sealing rib is provided on the contact surface between the soft colloid and the user's part.

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