A flexible ultrasound patch structure

Abstract

The utility model discloses a kind of flexible ultrasonic patch structures, belong to patch technical field, including flexible substrate, piezoelectric layer is connected above flexible substrate, the upper side of piezoelectric layer is connected with electrode layer, the upper side of electrode layer is connected with matching layer, the upper side of matching layer is connected with backing layer, by optimizing piezoelectric layer material and structure, and setting matching layer and backing layer, reduce the reflection and loss in the propagation process of ultrasonic wave, improve the transmission efficiency of ultrasonic signal, to improve the quality and accuracy of ultrasonic imaging, breathable skin-friendly layer is made of porous polyurethane material, can effectively promote skin surface air circulation, reduce stuffy feeling, the lower surface of breathable skin-friendly layer is provided with anti-allergic coating, for reducing skin allergy risk, improve comfort.

Description

Technical Field

[0001] This utility model relates to the field of patch technology, and in particular to a flexible ultrasonic patch structure. Background Technology

[0002] Traditional ultrasound monitoring equipment is typically bulky and lacks flexibility, making it difficult to meet the needs of long-term, real-time dynamic monitoring of the human body. Flexible ultrasound patches, as a novel monitoring device, offer a new solution for medical monitoring due to their excellent flexibility and conformability, allowing them to adapt to the complex curves of the human body. However, existing flexible ultrasound patches still have some structural shortcomings, such as the need to improve ultrasound signal transmission efficiency and the potential for skin discomfort after prolonged use, which limit their effectiveness and comfort in practical applications. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a flexible ultrasonic patch structure.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: it includes a flexible substrate layer, a piezoelectric layer connected above the flexible substrate layer, an electrode layer connected above the piezoelectric layer, a matching layer connected above the electrode layer, a backing layer connected above the matching layer, and a breathable and skin-friendly layer connected below the flexible substrate layer.

[0005] As a further description of the above technical solution:

[0006] The flexible substrate layer and the piezoelectric layer are connected by physical adsorption.

[0007] As a further description of the above technical solution:

[0008] The piezoelectric layer and the electrode layer are connected by chemical bonding.

[0009] As a further description of the above technical solution:

[0010] The electrode layer and the matching layer are connected by lamination.

[0011] As a further description of the above technical solution:

[0012] The matching layer and the backing layer are bonded together with adhesive.

[0013] As a further description of the above technical solution:

[0014] The flexible base layer and the breathable, skin-friendly layer are bonded together with an adhesive.

[0015] As a further description of the above technical solution:

[0016] An anti-allergy coating is sprayed beneath the breathable and skin-friendly layer.

[0017] This utility model has the following beneficial effects:

[0018] 1. In this utility model, by optimizing the piezoelectric layer material and structure, and by setting a matching layer and a backing layer, the reflection and loss of ultrasonic waves during propagation are reduced, the transmission efficiency of ultrasonic signals is improved, thereby enhancing the quality and accuracy of ultrasonic imaging.

[0019] 2. In this utility model, the breathable and skin-friendly layer is made of porous polyurethane material, which can effectively promote air circulation on the skin surface and reduce stuffiness. The lower surface of the breathable and skin-friendly layer is provided with an anti-allergy coating to reduce the risk of skin allergies and improve comfort. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the flexible ultrasonic patch structure proposed in this utility model. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the overall structure of the flexible ultrasonic patch structure proposed in this utility model. Figure 2 .

[0022] Legend:

[0023] 1. Flexible substrate layer; 2. Piezoelectric layer; 3. Electrode layer; 4. Matching layer; 5. Backing layer; 6. Breathable and skin-friendly layer; 7. Anti-allergenic coating. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Reference Figures 1-2 An embodiment of this utility model includes a flexible base layer 1, a piezoelectric layer 2 connected above the flexible base layer 1, an electrode layer 3 connected above the piezoelectric layer 2, a matching layer 4 connected above the electrode layer 3, a backing layer 5 connected above the matching layer 4, and a breathable and skin-friendly layer 6 connected below the flexible base layer 1.

[0026] The flexible substrate 1 is made of a composite hydrogel material. This composite hydrogel material not only has high water content and good flexibility, but also improves the mechanical strength and durability of the substrate through the reinforcement of nanocellulose, so that it can better adapt to human movement and reduce signal distortion caused by deformation.

[0027] The piezoelectric layer 2 is made of a composite material of lead zirconate titanate (PZT) and polyvinylidene fluoride (PVDF) with excellent piezoelectric properties. PZT has a high piezoelectric coefficient, while PVDF has good flexibility and biocompatibility. The combination of the two ensures the high sensitivity of the piezoelectric layer 2 and improves its flexibility.

[0028] Electrode layer 3 is made of a conductive material composed of silver nanowires and a polymer matrix. The silver nanowires have excellent conductivity and flexibility, while the polymer matrix provides good adhesion and mechanical protection.

[0029] Matching layer 4 is composed of multiple layers of materials with different acoustic impedances, which can effectively reduce the reflection of ultrasonic waves at the interface and improve the transmission efficiency of ultrasonic waves.

[0030] The backing layer 5 is made of porous silicone rubber material. The porous structure can effectively absorb the ultrasonic waves emitted by the piezoelectric layer 2 to the back, reduce back reflection, and avoid interfering with normal ultrasonic signals.

[0031] The breathable and skin-friendly layer 6 is made of porous polyurethane material, which can effectively promote air circulation on the skin surface and reduce stuffiness. The lower surface of the breathable and skin-friendly layer 6 is provided with an anti-allergy coating 7 to reduce the risk of skin allergies.

[0032] The flexible substrate layer 1 and the piezoelectric layer 2 are connected by physical adsorption. The piezoelectric layer 2 material solution is coated on the surface of the flexible substrate layer 1. During the solution drying process, the molecules of the flexible substrate layer 1 and the piezoelectric layer 2 material attract each other through physical interactions such as van der Waals forces, thereby achieving connection. The piezoelectric layer 2 and the electrode layer 3 are connected by chemical bonding. Chemical bonds are formed between the surface of the piezoelectric layer 2 and the electrode layer 3 material through chemical methods, thereby achieving a strong connection. The electrode layer 3 and the matching layer 4 are connected by lamination. The matching layer 4 and the backing layer 5 are bonded by adhesive. The flexible substrate layer 1 and the breathable and skin-friendly layer 6 are bonded by adhesive. An anti-allergy coating 7 is sprayed under the breathable and skin-friendly layer 6.

[0033] Working principle: The flexible base layer 1 is made of composite hydrogel material, which not only has high water content and good flexibility, but also improves the mechanical strength and durability of the base layer through the reinforcement of nanocellulose, so that it can better adapt to human movement and reduce signal distortion caused by deformation.

[0034] The piezoelectric layer 2 is made of a composite material of lead zirconate titanate (PZT) and polyvinylidene fluoride (PVDF) with excellent piezoelectric properties. PZT has a high piezoelectric coefficient, while PVDF has good flexibility and biocompatibility. The combination of the two ensures the high sensitivity of the piezoelectric layer 2 while improving its flexibility.

[0035] Electrode layer 3 is made of a conductive material composed of silver nanowires and a polymer matrix. The silver nanowires have excellent conductivity and flexibility, while the polymer matrix provides good adhesion and mechanical protection.

[0036] Matching layer 4 is composed of multiple layers of materials with different acoustic impedances, which can effectively reduce the reflection of ultrasonic waves at the interface and improve the transmission efficiency of ultrasonic waves.

[0037] The backing layer 5 is made of porous silicone rubber material. The porous structure can effectively absorb the ultrasonic waves emitted by the piezoelectric layer 2 to the back, reduce back reflection, and avoid interfering with normal ultrasonic signals.

[0038] The breathable and skin-friendly layer 6 is made of porous polyurethane material, which can effectively promote air circulation on the skin surface and reduce stuffiness. The lower surface of the breathable and skin-friendly layer 6 is provided with an anti-allergy coating 7 to reduce the risk of skin allergies.

[0039] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power. The main controller can be a conventional known device such as a computer for control. The detailed description of known functions and components is omitted in the specific implementation of this disclosure. In order to ensure the compatibility of the device, the operating methods used are consistent with the parameters of commercially available instruments.

[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A flexible ultrasonic patch structure, comprising a flexible substrate layer (1), characterized in that: A piezoelectric layer (2) is connected above the flexible substrate layer (1), an electrode layer (3) is connected above the piezoelectric layer (2), a matching layer (4) is connected above the electrode layer (3), a backing layer (5) is connected above the matching layer (4), and a breathable and skin-friendly layer (6) is connected below the flexible substrate layer (1).

2. The flexible ultrasonic patch structure according to claim 1, characterized in that: The flexible substrate layer and the piezoelectric layer (2) are connected by physical adsorption.

3. The flexible ultrasonic patch structure according to claim 1, characterized in that: The piezoelectric layer (2) and the electrode layer (3) are connected by chemical bonding.

4. The flexible ultrasonic patch structure according to claim 1, characterized in that: The electrode layer (3) and the matching layer (4) are connected by lamination.

5. The flexible ultrasonic patch structure according to claim 1, characterized in that: The matching layer (4) and the backing layer (5) are bonded together by adhesive.

6. The flexible ultrasonic patch structure according to claim 1, characterized in that: The flexible base layer (1) and the breathable skin-friendly layer (6) are bonded together by an adhesive.

7. The flexible ultrasonic patch structure according to claim 1, characterized in that: An anti-allergy coating (7) is sprayed on the underside of the breathable and skin-friendly layer (6).

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