Mute damping protection pad for external counterpulsation instrument

Abstract

The invention discloses a mute damping protection pad for an external counterpulsation instrument, and relates to the technical field of medical instruments, and the mute damping protection pad comprises an upper layer sound absorbing material used for absorbing high-frequency noise; the middle-layer damping material is a honeycomb-shaped magnetic damping material, and the damping performance of the middle-layer damping material is regulated and controlled through an external electromagnetic field; the bottom-layer anti-skid material has a vacuum adsorption function; the intelligent module comprises a vibration sensor and a control unit and is used for monitoring the vibration amplitude and the noise level in real time and feeding back operation parameters to the equipment through wireless communication; the middle-layer damping material is electrically connected with the intelligent module, and the control unit dynamically adjusts the arrangement direction of the magnetic particles in the middle-layer damping material according to data of the vibration sensor. The problems that in the prior art, the damping effect is poor, the noise reduction capacity is limited, the equipment operation stability is insufficient, and intelligent adjustment is lacked are effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical appliances, and particularly relates to a silent shock-absorbing pad for an external counterpulsation device. Background Art

[0002] An external counterpulsation device (ECP) is a non-invasive medical device that periodically pressurizes the lower limbs through external airbags synchronized with the cardiac cycle to promote blood circulation and improve cardiac blood supply. This device is widely used in the treatment and rehabilitation fields of cardiovascular diseases such as coronary heart disease, angina pectoris, and heart failure. However, during operation, the external counterpulsation device generates significant vibration and noise, which not only affects the treatment experience of patients but also may interfere with the surrounding environment and the normal work of medical staff.

[0003] Currently, most of the external counterpulsation devices used in the market are not equipped with professional shock-absorbing pads or sound-absorbing devices, and the devices are directly placed on ordinary floors or brackets.

[0004] The deficiencies of the existing technologies in shock absorption and noise reduction are mainly reflected in the following aspects: 1. Vibration transmission problem: Due to the large volume of the external counterpulsation device and the high frequency of periodic mechanical vibration during operation, most of the existing pads use simple foam or rubber shock-absorbing layers, which cannot effectively isolate high-frequency vibrations, and the vibration energy will still be transmitted to the ground, resulting in resonance during the operation of the device and increasing the noise level. 2. Limited noise reduction ability: The conventional sound-absorbing materials have a simple structure, such as using single-layer sponge or porous materials, lacking the ability to absorb high-frequency noise. Especially when the external counterpulsation device operates, the mechanical noise and air flow noise have a wide frequency range, and these materials are difficult to effectively absorb multi-band noise, resulting in a still serious noise pollution problem. 3. Insufficient stability: The existing anti-slip structure design is relatively simple, mostly using ordinary rubber materials. Facing the strong vibration force generated during the operation of the counterpulsation device, it is easy to cause device displacement, thus affecting the stability and safety of treatment. 4. Lack of intelligent adjustment: Most of the existing technologies are fixed designs and cannot adaptively adjust the shock absorption and noise reduction performance according to dynamic changes such as the vibration frequency and working state of the device, resulting in the actual performance of the shock-absorbing pad being difficult to achieve the ideal effect and a poor user experience. Summary of the Invention

[0005] The purpose of the present invention is to provide a silent shock-absorbing pad for an external counterpulsation device to solve the problems of poor shock absorption effect, limited noise reduction ability, insufficient stability of device operation, and lack of intelligent adjustment in the existing technologies.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A silent shock-absorbing pad for an external counterpulsation device, comprising:

[0008] An upper sound-absorbing material for absorbing high-frequency noise;

[0009] A middle-layer shock-absorbing material, which is a honeycomb-shaped magnetic shock-absorbing material, and its shock-absorbing performance is regulated by an external electromagnetic field;

[0010] A bottom anti-slip material with a vacuum adsorption function;

[0011] An intelligent module, which includes a vibration sensor and a control unit, is used to monitor the vibration amplitude and noise level in real time, and feedback the operating parameters to the device through wireless communication;

[0012] The middle-layer shock-absorbing material is electrically connected to the intelligent module, and the control unit dynamically adjusts the arrangement direction of magnetic particles in the middle-layer shock-absorbing material according to the data of the vibration sensor.

[0013] As a further solution of the present invention: the upper sound-absorbing material includes porous polyurethane foam as a matrix, with a thickness of 2 mm to 5 mm. Micropores are formed on the surface of the matrix to form a single-layer microporous structure, and the porosity of the matrix surface is more than 80%.

[0014] As a further solution of the present invention: the microporous structure is composed of a plurality of microporous units arranged in a honeycomb shape. The pore diameter range of the microporous units is 50 μm to 300 μm, the arrangement spacing of the honeycombs is 100 μm to 500 μm, the density of microporous units per square centimeter is 100 to 200, and the depth of the microporous units is 30% to 50% of the matrix thickness.

[0015] As a further solution of the present invention: the surface of the microporous structure is covered with a variable-aperture diaphragm made of shape memory polymer. The thickness of the diaphragm is 50 μm to 200 μm. The diaphragm and the microporous structure are combined by a hot pressing process and embedded in the surface layer of the matrix to form a composite structure. The thickness of the diaphragm completely covers the opening area of the honeycomb unit along the microporous edge and extends 0.1 mm to 0.5 mm below the surface layer of the matrix.

[0016] As a further solution of the present invention: the honeycomb unit of the honeycomb-shaped magnetic shock-absorbing material is filled with magnetorheological fluid. The cross-section of the honeycomb unit is a regular hexagon, the side length of each honeycomb unit is 2 mm to 10 mm, the unit wall thickness is 0.2 mm to 1 mm, and the magnetorheological fluid fills 70% to 90% of the unit space.

[0017] As a further solution of the present invention: the cell wall of the honeycomb cell is made of a flexible polymer material, and the flexible polymer material is silicone rubber or polyurethane elastomer, having an elastic modulus in the range of 1 MPa to 10 MPa. A layer of anti-permeation coating is provided on the surface of the honeycomb cell wall, and the anti-permeation coating is made of polytetrafluoroethylene, with a thickness of 5 μm to 20 μm, for preventing the leakage of the magnetorheological fluid or chemical reaction with the wall material; sealing layers are provided at both the top and bottom of the honeycomb cell, and the sealing layers are made of high-temperature resistant polyimide film, with a thickness of 10 μm to 50 μm, and are combined with the cell wall through a hot pressing process.

[0018] As a further solution of the present invention: the magnetorheological fluid includes: magnetic particles, with a particle size range of 1 μm to 10 μm, and the main components are iron (Fe) or cobalt (Co); a dispersion liquid, using silicone oil or mineral oil as the carrier liquid; a stabilizer, with a content of 1% to 5% of the total weight, and the stabilizer is selected from phosphate ester surfactants, stearates or polyvinylpyrrolidone, for preventing the precipitation of magnetic particles in the dispersion liquid.

[0019] As a further solution of the present invention: a magnetic field generating device is embedded in the honeycomb cell wall of the honeycomb magnetic damping material, and the magnetic field generating device includes:

[0020] Embedded magnetic conductive coil: arranged inside the honeycomb cell wall, the magnetic conductive coil is made of copper wire, with a wire diameter range of 0.05 mm to 0.5 mm, the coil is arranged around the honeycomb cell wall, and the number of turns is 10 to 50 turns;

[0021] Soft magnetic inner lining layer: provided on the inner surface of the honeycomb cell wall, the soft magnetic inner lining layer is made of ferrite or silicon steel material, with a thickness of 10 μm to 50 μm, for concentrating and uniformly distributing the magnetic field;

[0022] Power supply interface: the magnetic conductive coil is connected to an external power supply control unit through a conductive material, and the power supply provides a direct current of 0.1 A to 2 A.

[0023] As a further solution of the present invention: the bottom anti-slip material includes:

[0024] Flared adsorption holes: multiple flared adsorption holes are provided on the surface of the bottom anti-slip material, the opening diameter of the adsorption holes is 3 mm to 10 mm, the bottom diameter of the holes is 1 mm to 5 mm, the hole depth is 2 mm to 5 mm, the inner surface of the adsorption holes is a smooth cone, and the spacing between the adsorption holes is 2 mm to 10 mm;

[0025] Adsorption cavity: the flared adsorption holes are connected to the adsorption cavity inside the bottom anti-slip material, and the adsorption cavity is a continuous cavity structure, with a depth of 1 mm to 3 mm, integrally formed by silica gel and communicating with the flared adsorption holes;

[0026] Vacuum connection interface: A vacuum connection interface is provided on one side of the adsorption cavity. The vacuum connection interface is embedded with a one-way valve, which is used to connect to an external vacuum pump and maintain a negative pressure state inside the cavity.

[0027] As a further solution of the present invention: The intelligent module is embedded in the cushion. The intelligent module includes:

[0028] Vibration sensor: It is arranged in the middle layer of the cushion. The vibration sensor is a MEMS acceleration sensor with a size of 1 mm to 3 mm, encapsulated in a flexible protective shell made of polyimide material with a thickness of 10 μm to 50 μm.

[0029] Control unit: It is located in a fixed cavity on the side edge of the cushion. The control unit includes a microprocessor and a signal amplifier. The microprocessor chip has a size of 5 mm to 10 mm, and the signal amplifier is encapsulated in an aluminum alloy heat dissipation shell with a thickness of 0.5 mm to 2 mm.

[0030] Wireless communication module: It is integrated in the control unit and includes an antenna and a radio frequency chip. The antenna is a flexible antenna with a length of 10 mm to 30 mm. The radio frequency chip supports communication in the 2.4 GHz band and is electrically connected to the control unit through a PCB board.

[0031] Power supply unit: It is arranged below the cavity of the control unit. The power supply unit includes a lithium battery and a voltage stabilizing module. The lithium battery has a capacity of 200 mAh to 500 mAh, and the voltage stabilizing module is connected to the control unit through a flexible wire.

[0032] Advantages of the present invention:

[0033] (1) The device adopts a multi-layer composite structure design, significantly improving the shock absorption and noise reduction performance: The upper layer of the silent shock-absorbing cushion of the present invention is made of porous polyurethane foam material, with a honeycomb-like microporous structure designed on the surface and covered with a shape memory polymer film. This design can not only effectively absorb high-frequency noise, but also dynamically adjust the micropore diameter to optimize the sound absorption performance according to the operating state of the device. At the same time, the middle layer is a honeycomb-like magnetic shock-absorbing material filled with magnetorheological fluid and combined with an embedded magnetic field coil to achieve precise response and suppression of vibration frequency. Compared with traditional single shock-absorbing materials, this composite structure can cover a wider range of vibration and noise frequency bands, significantly improving the silent effect of the device operating environment.

[0034] (2) This device has an intelligent adjustment function and can dynamically adapt to changes in vibration and noise: The cushion of the present invention is embedded with an intelligent module, including a vibration sensor and a control unit. The vibration sensor monitors the vibration amplitude and frequency of the device in real time. The control unit feeds back data through wireless communication and adjusts the arrangement direction of magnetic particles in the magnetic damping material, so that the damping performance is optimized with the change of the device operation state. This intelligent adjustment function not only improves the damping effect, but also reduces the loss of the cushion material during the long-term operation of the device and extends the service life.

[0035] (3) The anti-slip design at the bottom layer of this device is stable and reliable, enhancing the operating safety of the device: The bottom layer of the present invention adopts a vacuum adsorption structure. The horn-shaped adsorption holes are connected to the continuous adsorption cavity, and a one-way valve is embedded through the vacuum connection interface to form a negative pressure state in cooperation with an external vacuum pump. This design ensures that the cushion can firmly adhere to the ground in a strong vibration environment, avoiding the device from affecting the treatment effect or causing potential safety hazards due to displacement. Compared with traditional rubber anti-slip pads, this design has significant advantages in anti-slip performance and use stability. Description of the Drawings

[0036] The present invention will be further described below with reference to the accompanying drawings.

[0037] Figure 1 is a three-dimensional structural schematic diagram of the whole of the present invention;

[0038] Figure 2 is an axonometric structural schematic diagram of the whole of the present invention.

[0039] In the figure: 1, upper sound-absorbing material; 2, middle damping material; 3, bottom anti-slip material; 4, horn-shaped adsorption hole. Detailed Embodiment

[0040] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0041] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, as well as a specific orientation structure and operation. Therefore, it should not be construed as a limitation to the present invention. In addition, "first" and "second" are only for the purpose of description, and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Therefore, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0042] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "coupled" and the like should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection, or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] Please refer to Figure 1 - Figure 2 as shown, the present invention is a silent shock-absorbing cushion for an external counterpulsation device, including:

[0044] An upper sound-absorbing material 1, which is used to absorb high-frequency noise;

[0045] A middle shock-absorbing material 2, the middle shock-absorbing material 2 is a honeycomb-shaped magnetic shock-absorbing material, and its shock-absorbing performance is regulated by an external electromagnetic field;

[0046] A bottom anti-slip material 3, the bottom anti-slip material 3 has a vacuum adsorption function;

[0047] An intelligent module, the intelligent module includes a vibration sensor and a control unit, which are used to monitor the vibration amplitude and noise level in real time, and feedback the operating parameters to the device through wireless communication;

[0048] The middle shock-absorbing material 2 is electrically connected to the intelligent module, and the control unit dynamically adjusts the arrangement direction of the magnetic particles in the middle shock-absorbing material 2 according to the data of the vibration sensor.

[0049] Preferably, the upper sound-absorbing material 1 includes porous polyurethane foam as the matrix, with a thickness of 2 mm to 5 mm. Micropores are formed on the surface of the matrix to form a single-layer microporous structure, and the porosity of the surface of the matrix is more than 80%.

[0050] Preferably, the microporous structure is composed of multiple microporous units arranged in a honeycomb pattern. The pore diameter of the microporous units ranges from 50 μm to 300 μm, the arrangement spacing of the honeycombs is from 100 μm to 500 μm, the density of the microporous units per square centimeter is 100 to 200, and the depth of the microporous units is 30% to 50% of the substrate thickness.

[0051] Preferably, the surface of the microporous structure is covered with a variable-aperture diaphragm made of a shape-memory polymer. The thickness of the diaphragm is from 50 μm to 200 μm. The diaphragm is combined with the microporous structure through a hot-pressing process and is embedded in the surface layer of the substrate to form a composite structure. The thickness of the diaphragm completely covers the opening area of the honeycomb cells along the edges of the micropores and extends 0.1 mm to 0.5 mm below the surface layer of the substrate.

[0052] Preferably, the honeycomb cells of the honeycomb magnetic damping material are filled with a magnetorheological fluid. The cross-section of the honeycomb cells is a regular hexagon. The side length of each honeycomb cell is from 2 mm to 10 mm, the cell wall thickness is from 0.2 mm to 1 mm, and the magnetorheological fluid fills 70% to 90% of the cell space.

[0053] Preferably, the cell walls of the honeycomb cells are made of a flexible polymer material, which is silicone rubber or polyurethane elastomer and has an elastic modulus range of 1 MPa to 10 MPa. A layer of anti-permeation coating is provided on the surface of the honeycomb cell walls. The anti-permeation coating is made of polytetrafluoroethylene and has a thickness of 5 μm to 20 μm, which is used to prevent the magnetorheological fluid from leaking or reacting chemically with the wall material. Sealing layers are provided at the top and bottom of the honeycomb cells. The sealing layers are made of high-temperature-resistant polyimide films and have a thickness of 10 μm to 50 μm, and are combined with the cell walls through a hot-pressing process.

[0054] Preferably, the magnetorheological fluid includes: magnetic particles with a particle size range of 1 μm to 10 μm, mainly composed of iron (Fe) or cobalt (Co); a dispersion liquid using silicone oil or mineral oil as the carrier liquid; and a stabilizer with a content of 1% to 5% of the total weight. The stabilizer is selected from phosphate ester surfactants, stearates or polyvinylpyrrolidone, which is used to prevent the magnetic particles from precipitating in the dispersion liquid.

[0055] Preferably, a magnetic field generating device is embedded in the cell walls of the honeycomb cells of the honeycomb magnetic damping material. The magnetic field generating device includes:

[0056] Embedded magnetic conduction coils: Arranged inside the cell walls of the honeycomb cells, the magnetic conduction coils are made of copper wires with a wire diameter range of 0.05 mm to 0.5 mm. The coils are arranged in a circular pattern along the cell walls of the honeycomb cells, and the number of turns is 10 to 50 turns;

[0057] Soft magnetic inner lining layer: It is arranged on the inner surface of the honeycomb cell wall. The soft magnetic inner lining layer is made of ferrite or silicon steel material, with a thickness of 10μm to 50μm, and is used to gather and evenly distribute the magnetic field;

[0058] Power supply interface: The magnetic conduction coil is connected to the external power supply control unit through a conductive material, and the power supply provides a direct current of 0.1A to 2A.

[0059] Preferably, the bottom anti-slip material 3 includes:

[0060] Flared adsorption holes 4: A plurality of flared adsorption holes 4 are arranged on the surface of the bottom anti-slip material 3. The opening diameter of the adsorption holes is 3mm to 10mm, the bottom diameter is 1mm to 5mm, the hole depth is 2mm to 5mm, the inner surface of the adsorption holes is a smooth cone, and the spacing between the adsorption holes is 2mm to 10mm;

[0061] Adsorption cavity: The flared adsorption holes 4 are connected to the adsorption cavity inside the bottom anti-slip material 3. The adsorption cavity is a continuous cavity structure, with a depth of 1mm to 3mm, and is integrally formed by silica gel and is connected to the flared adsorption holes 4;

[0062] Vacuum connection interface: A vacuum connection interface is provided on one side of the adsorption cavity. The vacuum connection interface is embedded with a one-way valve, which is used to connect to an external vacuum pump and maintain a negative pressure state in the cavity.

[0063] Preferably, the intelligent module is embedded in the pad, and the intelligent module includes:

[0064] Vibration sensor: It is arranged in the middle layer of the pad. The vibration sensor is a MEMS acceleration sensor, with a size of 1mm to 3mm, and is encapsulated in a flexible protective shell. The protective shell is made of polyimide material, with a thickness of 10μm to 50μm;

[0065] Control unit: It is located in the fixed cavity on the side edge of the pad. The control unit includes a microprocessor and a signal amplifier. The microprocessor chip size is 5mm to 10mm, and the signal amplifier is encapsulated in an aluminum alloy heat dissipation shell. The thickness of the heat dissipation shell is 0.5mm to 2mm;

[0066] Wireless communication module: It is integrated in the control unit, including an antenna and a radio frequency chip. The antenna is a flexible antenna, with a length of 10mm to 30mm. The radio frequency chip supports 2.4GHz band communication and is electrically connected to the control unit through a PCB board;

[0067] Power supply unit: It is arranged below the cavity of the control unit. The power supply unit includes a lithium battery and a voltage stabilization module. The capacity of the lithium battery is 200mAh to 500mAh, and the voltage stabilization module is connected to the control unit through a flexible wire

[0068] Working principle of the present invention: The upper layer of the silent shock-absorbing pad is made of porous polyurethane foam material, with a honeycomb-like microporous structure designed on the surface and covered with a shape memory polymer film. It can not only effectively absorb high-frequency noise, but also optimize the sound absorption performance according to the equipment operation state by dynamically adjusting the micropore aperture. At the same time, the middle layer is a honeycomb-like magnetic shock-absorbing material, filled with magnetorheological fluid inside and combined with embedded magnetic field coils to achieve precise response and suppression of vibration frequency. Intelligent adjustment is realized by embedding an intelligent module in the pad, dynamically adapting to changes in vibration and noise. The vibration amplitude and frequency of the equipment are monitored in real time using a vibration sensor. The control unit feeds back the data of the vibration sensor through wireless communication and adjusts the arrangement direction of the magnetic particles in the magnetic shock-absorbing material, so that the shock-absorbing performance is optimized with the change of the equipment operation state; the bottom layer adopts a vacuum adsorption structure, with horn-shaped adsorption holes connected to a continuous adsorption cavity, and a one-way valve is embedded through a vacuum connection interface to form a negative pressure state in cooperation with an external vacuum pump, ensuring that the pad can firmly fit the ground in a strong vibration environment and preventing the equipment from affecting the treatment effect or causing safety hazards due to displacement.

[0069] The above has described a detailed implementation example of the present invention, but the content described is only the preferred implementation example of the present invention and cannot be considered as limiting the implementation scope of the present invention. All equivalent changes and improvements made according to the scope of the present invention application should still fall within the patent coverage scope of the present invention.

Claims

1. A silent shock-absorbing pad for an external counterpulsation device, characterized in that: include: An upper layer of sound-absorbing material (1) for absorbing high-frequency noise; An intermediate layer of shock-absorbing material (2), wherein the intermediate layer of shock-absorbing material (2) is a honeycomb magnetic shock-absorbing material, and its shock-absorbing performance is regulated by an external electromagnetic field; A bottom anti-slip material (3), wherein the bottom anti-slip material (3) has a vacuum adsorption function; An intelligent module, comprising a vibration sensor and a control unit, for real-time monitoring of vibration amplitude and noise level, and feeding back operating parameters to the device via wireless communication; The intermediate layer of shock absorbing material (2) is electrically connected to the intelligent module, and the control unit dynamically adjusts the arrangement direction of the magnetic particles in the intermediate layer of shock absorbing material (2) according to data from the vibration sensor.

2. The silent shock-absorbing pad for an external counterpulsation device according to claim 1, characterized in that: The upper layer sound-absorbing material (1) comprises porous polyurethane foam as a matrix with a thickness of 2 mm to 5 mm. Micropores are opened on the surface of the matrix to form a single-layer microporous structure, and the open porosity of the matrix surface is above 80%.

3. The silent shock-absorbing pad for an external counterpulsation device according to claim 2, characterized in that: The microporous structure is composed of a plurality of microporous units arranged in a honeycomb shape, the pore size of the microporous units ranges from 50 μm to 300 μm, the arrangement spacing of the honeycombs is from 100 μm to 500 μm, the density of the microporous units per square centimeter is from 100 to 200, and the depth of the microporous units is from 30% to 50% of the thickness of the substrate.

4. The silent shock-absorbing pad for an external counterpulsation device according to claim 3, characterized in that: The surface of the microporous structure is covered with a variable aperture membrane made of a shape memory polymer, the thickness of the membrane is 50 μm to 200 μm, the membrane is combined with the microporous structure by a hot pressing process, and is embedded in the surface layer of the substrate to form a composite structure, the thickness of the membrane completely covers the opening area of ​​the honeycomb unit along the edge of the micropores and extends to 0.1 mm to 0.5 mm below the surface layer of the substrate.

5. The silent shock-absorbing pad for an external counterpulsation device according to claim 1, characterized in that: The honeycomb unit of the honeycomb magnetic shock-absorbing material is filled with magnetorheological fluid. The cross section of the honeycomb unit is a regular hexagon. The side length of each honeycomb unit is 2mm to 10mm, the unit wall thickness is 0.2mm to 1mm, and the magnetorheological fluid fills 70% to 90% of the unit space.

6. A silent shock-absorbing pad for an external counterpulsation device according to claim 5, characterized in that: The cell wall of the honeycomb cell is made of a flexible polymer material, which is silicone rubber or polyurethane elastomer with an elastic modulus ranging from 1MPa to 10MPa. The surface of the honeycomb cell wall is provided with an anti-permeability coating, which is made of polytetrafluoroethylene and has a thickness of 5μm to 20μm, and is used to prevent the magnetorheological fluid from leaking or chemically reacting with the wall material; the top and bottom of the honeycomb cell are both provided with a sealing layer, which is made of a high-temperature resistant polyimide film and has a thickness of 10μm to 50μm, and is combined with the cell wall by a hot pressing process.

7. The silent shock-absorbing pad for an external counterpulsation device according to claim 5, characterized in that: The magnetorheological fluid includes: magnetic particles with a particle size ranging from 1 μm to 10 μm, and a main component of iron (Fe) or cobalt (Co); a dispersion using silicone oil or mineral oil as a carrier liquid; a stabilizer with a content of 1% to 5% of the total weight, and the stabilizer is selected from phosphate surfactants, stearates or polyvinyl pyrrolidone, and is used to prevent the magnetic particles from precipitating in the dispersion.

8. The silent shock-absorbing pad for an external counterpulsation device according to claim 6, characterized in that: A magnetic field generating device is embedded in the honeycomb unit wall of the honeycomb magnetic damping material, and the magnetic field generating device comprises: Embedded magnetic coil: arranged inside the honeycomb cell wall, the magnetic coil is made of copper wire with a wire diameter ranging from 0.05mm to 0.5mm. The coil is arranged around the honeycomb cell wall with 10 to 50 turns. Soft magnetic lining layer: arranged on the inner surface of the honeycomb unit wall, the soft magnetic lining layer is made of ferrite or silicon steel material, with a thickness of 10μm to 50μm, and is used to gather and evenly distribute the magnetic field; Power interface: The magnetic coil is connected to an external power control unit through conductive materials, and the power supply provides a DC current of 0.1A to 2A.

9. The silent shock-absorbing pad for an external counterpulsator according to claim 1, characterized in that: The bottom anti-slip material (3) comprises: Trumpet-shaped adsorption holes (4): A plurality of trumpet-shaped adsorption holes (4) are arranged on the surface of the bottom anti-slip material (3), the opening diameter of the adsorption holes is 3 mm to 10 mm, the bottom diameter of the holes is 1 mm to 5 mm, the hole depth is 2 mm to 5 mm, the inner surface of the adsorption holes is smooth and conical, and the spacing between the adsorption holes is 2 mm to 10 mm; Adsorption cavity: The trumpet-shaped adsorption hole (4) is connected to the adsorption cavity inside the bottom anti-slip material (3), the adsorption cavity is a continuous cavity structure with a depth of 1 mm to 3 mm, is integrally formed with silicone and is connected to the trumpet-shaped adsorption hole (4); Vacuum connection interface: A vacuum connection interface is provided on one side of the adsorption chamber. The vacuum connection interface has a built-in one-way valve for connecting an external vacuum pump and maintaining a negative pressure state in the chamber.

10. A silent shock-absorbing pad for an external counterpulsation device according to any one of claims 1 to 9, characterized in that: The smart module is embedded in the pad, and the smart module includes: Vibration sensor: arranged in the middle layer of the pad, the vibration sensor is a MEMS acceleration sensor with a size of 1mm to 3mm, encapsulated in a flexible protective shell, the protective shell is made of polyimide material with a thickness of 10μm to 50μm; Control unit: located in the fixed cavity at the side edge of the pad, the control unit includes a microprocessor and a signal amplifier. The microprocessor chip size is 5mm to 10mm, and the signal amplifier is packaged in an aluminum alloy heat sink shell with a thickness of 0.5mm to 2mm. Wireless communication module: integrated in the control unit, including an antenna and a radio frequency chip. The antenna is a flexible antenna with a length of 10 mm to 30 mm. The radio frequency chip supports 2.4 GHz frequency band communication and is electrically connected to the control unit through a PCB board. Power supply unit: arranged below the control unit cavity, the power supply unit includes a lithium battery and a voltage stabilizing module, the capacity of the lithium battery is 200mAh to 500mAh, and the voltage stabilizing module is connected to the control unit through a flexible wire.

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