Dressing with ultrasonic transmission function

Abstract

The dressing with the ultrasonic transmission function comprises a supporting layer, a surface layer, a bottom layer, a moisturizing layer and an ultrasonic transmission layer, the supporting layer is provided with a first window and a second window located beside the first window, the surface layer is fixed to one side of the front face of the supporting layer, and the bottom layer is fixed to one side of the back face of the supporting layer. The surface layer is fixed on one side of the back surface of the supporting layer, the bottom layer is fixed on one side of the back surface of the supporting layer, the moisturizing layer is located between the surface layer and the bottom layer, and the ultrasonic transmission layer is fixed on one side of the back surface of the supporting layer and covers other areas, except the bottom layer, of the back surface of the supporting layer.

Description

Technical Field

[0001] This utility model relates to the field of medical dressing technology, specifically to a dressing with ultrasonic transmission function. Background Technology

[0002] In hip and knee joint revision surgeries, while most bacteria, viruses, and fungi deep within the femoral joint cavity can be removed using existing techniques (such as ultrasonic debridement), some areas remain untreated. To prevent the growth of residual bacteria within the joint cavity and protect the wound from viral or bacterial penetration, antibiotics are injected into the joint cavity after hip joint revision surgery to prevent infection. However, due to the difficulty in antibiotic diffusion within the joint cavity, secondary infections of the artificial joint prosthesis can occur during treatment due to antibiotics not reaching the affected area. This invention proposes a dressing with ultrasonic transmission capabilities to improve drug dispersion within the joint cavity. Utility Model Content

[0003] The purpose of this invention is to provide a dressing with ultrasonic transmission function.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A dressing with ultrasound transmission function, comprising:

[0006] A support layer having a front and a back side disposed opposite to each other, a first window being disposed in the middle of the support layer and a second window located next to the first window;

[0007] A surface layer, which is fixed to one side of the front of the support layer and covers the first window;

[0008] The bottom layer is fixed to one side of the back of the support layer and covers the first window;

[0009] A moisturizing layer, the moisturizing layer being located between the top layer and the bottom layer; and

[0010] An ultrasonic transmission layer is fixed to one side of the back of the support layer and covers the other areas of the back of the support layer except for the bottom layer.

[0011] In one embodiment, a conductive sheet is further included, the shape of which matches the shape of the second window, and the back side of the conductive sheet is in contact with the ultrasound transmission layer, while the front side of the conductive sheet protrudes from the second window.

[0012] In one embodiment, an adhesive layer is provided on the front side of the conductive sheet, and release paper is covered on the adhesive layer.

[0013] In one embodiment, there are two second windows, which are positioned on opposite sides of the first window.

[0014] In one embodiment, the back side of the ultrasonic transmission layer has an adhesive layer or the ultrasonic transmission layer is adhesive.

[0015] In one embodiment, the back side of the ultrasonic transmission layer is covered with a release film.

[0016] In one embodiment, the thickness of the ultrasonic transmission layer is not less than the sum of the thicknesses of the bottom layer and the moisturizing layer.

[0017] In one embodiment, the ultrasonic transmission layer is a hydrogel layer.

[0018] In one embodiment, the dressing further includes a foam layer located between the base layer and the moisturizing layer.

[0019] In one embodiment, the foam layer is made of hydrophilic foam.

[0020] The present invention adopts the above-mentioned technical solution and has the following beneficial effects: the dressing with ultrasonic transmission function provided by the present invention adds an ultrasonic transmission layer on the basis of the existing dressing, so that the dressing can contact the ultrasonic transmission layer with the ultrasonic probe of the existing ultrasonic drug delivery device, so that the ultrasound can be transmitted to the bone through the skin and other tissues, and then transmitted through the bone, thereby causing the antibiotics pre-injected into the joint cavity to diffuse in the joint cavity due to ultrasonic vibration, thereby improving the dispersion of antibiotics in the joint cavity, enhancing the dispersion effect of drugs in the joint cavity, and achieving the purpose of avoiding wound infection. Attached Figure Description

[0021] Figure 1 A schematic diagram of the dressing explosion is shown.

[0022] Figure 2 A cross-sectional schematic diagram of the dressing is shown.

[0023] Figure 3 It shows Figure 2 Enlarged view of point A in the middle. Detailed Implementation

[0024] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so as to better understand the purpose, features and advantages of the present invention. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the present invention, but are only for illustrating the essential spirit of the technical solution of the present invention.

[0025] In the following description, certain specific details are set forth for the purpose of illustrating various disclosed embodiments in order to provide a thorough understanding of the various disclosed embodiments. However, those skilled in the art will recognize that embodiments may be practiced without one or more of these specific details. In other instances, well-known apparatuses, structures, and techniques associated with this application may not have been shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

[0026] Unless the context requires otherwise, throughout the specification and claims, the word “comprising” and its variations, such as “including” and “having”, shall be understood to have an open, inclusive meaning, that is, to be interpreted as “including, but not limited to”.

[0027] Throughout this specification, references to "an embodiment" or "an embodiment" indicate that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Therefore, the appearance of "in an embodiment" or "an embodiment" in various places throughout the specification does not necessarily refer to the same embodiment. Furthermore, a particular feature, structure, or characteristic may be combined in any manner in one or more embodiments.

[0028] The singular forms “a” and “the” used in this specification and the appended claims include plural references unless otherwise expressly stated herein. It should be noted that the term “or” is generally used to mean “and / or” unless otherwise expressly stated herein.

[0029] In the following description, in order to clearly demonstrate the structure and working method of this utility model, a number of directional terms will be used. However, terms such as "front", "back", "left", "right", "outside", "inside", "outward", "inward", "up", and "down" should be understood as convenient terms and not as limiting terms.

[0030] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0031] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0032] This embodiment provides a dressing with ultrasonic transmission function, such as Figures 1-3 As shown, the dressing consists of a multi-layered structure, including a support layer 1, a top layer 2, a moisturizing layer 3, a bottom layer 4, and an ultrasonic transmission layer 5.

[0033] The support layer 1 typically has higher rigidity than other layers. In this embodiment, the support layer is a membrane made of polyester material. The support layer 1 has a front and a back side positioned opposite each other. The front and back sides are defined relative to the patient's skin; the side facing the skin when the dressing is applied is the back side, and the opposite side is the front side. A first window 11 is located in the center of the support layer 1. The shape of the first window 11 can be determined according to actual needs and is not limited to the rounded rectangle shown in the figure; it can also be a circle, a regular polygon, or other irregular shapes. A second window 12 is located on each of the opposite sides of the first window 11. The area of ​​the second window 12 is typically smaller than the area of ​​the first window 11. The shape of the second window is also not limited to the rectangle shown in the figure; it can also be a circle, a regular polygon, or other irregular shapes.

[0034] The top dressing 2 covers the front of the first window 11. The shape of the top dressing 2 matches the shape of the first window 11, and the size of the top dressing 2 is slightly larger than the size of the first window 11 so that the top dressing 2 can completely cover the first window 11 to prevent contaminants from entering the wound site. The top dressing 2 is preferably breathable to allow moisture to escape from the dressing. The top dressing 2 can be a fabric material woven from synthetic or natural fibers, such as polyurethane fibers. The edges of the top dressing 2 are secured to the perimeter of the front of the first window 11 with an adhesive. The adhesive can be any adhesive known in the art, preferably an acrylic adhesive or a silicone adhesive.

[0035] A base layer 4 covers the back of the first window 11. The shape of the base layer 4 matches the shape of the first window 11, and the size of the base layer 4 is slightly larger than the size of the first window 11 so that the base layer 4 can completely cover the first window 11. The base layer 4 is preferably breathable to allow tissue fluid in the wound to permeate through the base layer 4. The base layer 4 can be a fabric material woven from synthetic or natural fibers, such as polyurethane fibers. The edges of the base layer 4 are secured to the periphery of the back of the first window 11 with an adhesive. The adhesive can be any adhesive known in the art, preferably an acrylic adhesive or a silicone adhesive.

[0036] A moisturizing layer 3 is located between the top layer 2 and the bottom layer 4. The shape of the moisturizing layer 3 matches the shape of the first window 11, and the size of the moisturizing layer 3 is slightly smaller than the size of the first window 11. The moisturizing layer 3 has a certain degree of water absorption, which can lock in some of the liquid, thus maintaining a moist environment for the wound and promoting wound healing and granulation tissue formation. The moisturizing layer 3 may be made of polyacrylate fibers or polyacrylate polymers. The moisturizing layer 3 may also include gel fibers. The gel fibers have a certain degree of water absorption; when wound fluid is absorbed into the dressing, they form a gel, which helps maintain a moist environment for optimal wound healing and granulation tissue formation.

[0037] In a preferred embodiment, a foam layer 6 may further be included between the top layer 2 and the bottom layer 4, the foam layer 6 being disposed between the bottom layer 4 and the moisturizing layer 3. The foam layer 6 can improve the comfort and feel of the dressing. The foam layer 6 is preferably a hydrophilic foam, such as polyurethane foam.

[0038] An ultrasonic transmission layer 5 is also provided on the back side of the support layer 1. The ultrasonic transmission layer 5 serves as the transmission layer for ultrasound waves used in medical ultrasound technology. The ultrasonic transmission layer 5 is preferably a hydrogel layer. The ultrasonic transmission layer 5 evenly covers the back side of the support layer 1, excluding the bottom surface 4. After the dressing is fixed to the patient's wound, the ultrasonic probe of an existing ultrasonic drug delivery device can contact the ultrasonic transmission layer 5, allowing the ultrasound to be conducted through the skin and other tissues to the bone, and then through the bone. This causes the antibiotics pre-injected into the joint cavity to diffuse within the joint cavity due to ultrasonic vibration, thereby improving the dispersion of the antibiotics within the joint cavity and enhancing the drug dispersion effect, thus preventing wound infection. Preferably, the ultrasonic frequency of the ultrasonic drug delivery device is 0.1-5 MHz, and the power density is 0.1-1.5 W / cm². 2 .

[0039] The ultrasonic transmission layer 5 can have various thicknesses. Preferably, the thickness of the ultrasonic transmission layer 5 is equal to or slightly greater than the total thickness of the moisturizing layer 3, the bottom layer 4, and the foam layer 6. In this case, the hydrogel layer serving as the ultrasonic transmission layer 5 can prevent wound fluid from seeping out from the edge of the bottom layer 4.

[0040] Preferably, the back side of the ultrasonic transmission layer 5 is provided with an adhesive layer, or the ultrasonic transmission layer 5 itself is adhesive and can be directly bonded to the area around the wound, facilitating the fixation of the dressing. More preferably, the back side of the ultrasonic transmission layer 5 is also covered with a release film 8.

[0041] See also Figures 1-3The dressing may further include a conductive sheet 7, the shape of which matches the shape of the second window 12. The conductive sheet 7 is a metal sheet, such as a stainless steel sheet. The back side of the conductive sheet 7 contacts the ultrasound transmission layer 5, and the front side of the conductive sheet 7 extends through the second window 12 to facilitate contact with the ultrasound probe. Preferably, an adhesive layer is provided on the front side of the conductive sheet 7, and release paper is covered on the adhesive layer, so that the ultrasound probe can be directly fixed to the conductive sheet after the release paper is removed during use.

[0042] The preferred embodiments of this utility model have been described in detail above. However, it should be understood that after reading the above teachings, those skilled in the art can make various alterations or modifications to this utility model. These equivalent forms also fall within the scope defined by the appended claims.

Claims

1. A dressing with ultrasonic transmission function, characterized in that, include: A support layer having a front and a back side disposed opposite to each other, a first window being disposed in the middle of the support layer and a second window located next to the first window; A surface layer, which is fixed to one side of the front of the support layer and covers the first window; The bottom layer is fixed to one side of the back of the support layer and covers the first window; A moisturizing layer, the moisturizing layer being located between the top layer and the bottom layer; and An ultrasonic transmission layer is fixed to one side of the back of the support layer and covers the other areas of the back of the support layer except for the bottom layer.

2. The dressing as described in claim 1, characterized in that, It also includes a conductive sheet whose shape matches the shape of the second window, and the back side of the conductive sheet is in contact with the ultrasound transmission layer, while the front side of the conductive sheet protrudes from the second window.

3. The dressing as described in claim 2, characterized in that, An adhesive layer is provided on the front side of the conductive sheet, and release paper is covered on the adhesive layer.

4. The dressing as described in claim 2, characterized in that, There are two second windows, which are positioned on opposite sides of the first window.

5. The dressing as described in claim 1, characterized in that, The back side of the ultrasonic transmission layer has an adhesive layer or the ultrasonic transmission layer is adhesive.

6. The dressing as described in claim 5, characterized in that, The back side of the ultrasonic transmission layer is covered with a release film.

7. The dressing as claimed in claim 1, characterized in that, The thickness of the ultrasonic transmission layer is not less than the sum of the thicknesses of the bottom layer and the moisturizing layer.

8. The dressing as claimed in claim 1, characterized in that, The ultrasonic transmission layer is a hydrogel layer.

9. The dressing as claimed in claim 1, characterized in that, The dressing also includes a foam layer located between the base layer and the moisturizing layer.

10. The dressing as claimed in claim 9, characterized in that, The foam layer is made of hydrophilic foam.

Images