Waterproof film

Abstract

The utility model provides a waterproof film. The waterproof film comprises a film body, release paper and a support body, the membrane body comprises a first area and a second area, and the first area surrounds the periphery of the second area; the film body is also provided with a first surface and a second surface which are opposite to each other, and an adhesive is arranged on a part, corresponding to the first area, of the first surface; the release paper is adhered to the first surface through an adhesive and at least covers the first area; the support body is arranged on the second surface and is at least adhered to the first area; during use, the second area is used for covering the surface of the medical instrument, and the part, corresponding to the first area, of the first surface is used for being attached to the skin after the release paper is removed, so that waterproof protection is provided for the medical instrument; therefore, when the membrane body is attached to the skin, the situation that bubbles are generated between the first area and the skin is reduced or even avoided, and the occurrence rate of the situation that the waterproof effect of the membrane body is poor due to water leakage is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of waterproof structures, and in particular relates to a waterproof film. Background Art

[0002] With the popularity of wearable electronic devices, convenient and fast patch-type medical devices are growing rapidly. For example, in recent years, various short-term patch-type ECG monitors have been launched and favored by doctors and patients. Patch-type medical devices need to be attached to human skin for several days or weeks, but the waterproof performance of these medical devices is generally poor, and the adhesive strength of the patch glue weakens after contact with water. In addition, when these products are used, there may be small wounds on the patient's body for part of the product structure to enter the body, which may cause wound infection once it comes into contact with water. In this regard, waterproof measures need to be taken for such medical devices in scenarios such as when patients are taking a bath. Utility Model Content

[0003] The purpose of the utility model is to provide a waterproof film, which can be covered on the surface of a patch-type medical device in scenes such as when a patient is taking a bath, so as to provide waterproof protection for such medical devices.

[0004] To achieve the above object, the utility model provides a waterproof film, comprising:

[0005] The membrane body comprises a first region and a second region, wherein the first region surrounds the outer periphery of the second region; the membrane body further comprises a first surface and a second surface opposite to each other, wherein an adhesive is provided on a portion of the first surface corresponding to the first region;

[0006] a release paper, bonded to the first surface by the adhesive and covering at least the first area; and

[0007] The support body is arranged on the second surface and is bonded to at least the first area.

[0008] Optionally, the waterproof film further includes an indicator mark, which is disposed on the first surface and / or the second surface, and is located in the second area.

[0009] Optionally, the first area includes a first sub-area and a second sub-area connected end to end; the second area includes a third sub-area and a fourth sub-area; the first sub-area is located outside the third sub-area, and the second sub-area is located outside the fourth sub-area; the indicator mark is located in the third sub-area;

[0010] The release paper includes a first release paper and a second release paper, wherein the first release paper at least covers the first sub-region, and the second release paper at least covers the second sub-region.

[0011] Optionally, the support body is an annular structure.

[0012] Optionally, the support body comprises a plurality of sub-support bodies connected end to end in sequence.

[0013] Optionally, at the junction of two adjacent sub-support bodies, the edge of the end of one of the sub-support bodies is formed into a first corrugated structure, and the edge of the end of the other sub-support body is formed into a second corrugated structure, and the second corrugated structure is consistent with the first corrugated structure.

[0014] Optionally, the first area includes a first sub-area and a second sub-area; the second area includes a third sub-area and a fourth sub-area; the first sub-area is located outside the third sub-area, and the second sub-area is located outside the fourth sub-area; the waterproof film further includes an indicator mark, and the indicator mark is located in the third sub-area;

[0015] One of the plurality of sub-support bodies is a predetermined sub-support body, and the predetermined sub-support body at least partially covers the first sub-region; a protrusion is formed on the outer edge or inner edge of the predetermined sub-support body, and the protrusion is adjacent to an end of the predetermined sub-support body.

[0016] Optionally, the support body has a thickness of 0.1 mm to 0.5 mm.

[0017] Optionally, the width of the first region is 2 mm to 50 mm.

[0018] Optionally, the thickness of the membrane body is 0.01 mm to 0.5 mm.

[0019] Compared with the prior art, the waterproof film of the utility model has the following advantages:

[0020] The aforementioned waterproof film includes a film body, a release paper and a support body; the film body includes a first area and a second area, the first area surrounds the outer periphery of the second area; the film body also has a first surface and a second surface relative to each other, and an adhesive is provided on the portion of the first surface corresponding to the first area; the release paper is bonded to the first surface by the adhesive and at least covers the first area; the support body is arranged on the second surface and is at least bonded to the first area; wherein, the second area is used to cover the surface of the medical device, and the portion of the first surface corresponding to the first area is used to be attached to the skin after removing the release paper, thereby providing waterproof protection for the medical device, and the arrangement of the support body can provide support for the film body, avoid wrinkles or stacking in the first area, reduce the possibility of bubbles between the first area and the skin when the film body is attached to the skin, and thereby reduce the occurrence of poor waterproof effect of the film body due to water leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to better understand the present invention and do not constitute an improper limitation on the present invention.

[0022] Figure 1 This is an exploded schematic diagram of a waterproof film provided by the utility model according to an embodiment;

[0023] Figure 2 It is a schematic structural diagram of a membrane body of a waterproof film provided by the utility model according to an embodiment, and an indicator mark is also shown in the figure;

[0024] Figure 3 1 is a schematic diagram of the structure of a support body of a waterproof film provided by the utility model according to an embodiment, wherein a plurality of sub-support bodies are connected end to end;

[0025] Figure 4 It is a schematic structural diagram of a support body of a waterproof film provided by the utility model according to an embodiment, and a plurality of sub-support bodies in the figure are separated from each other.

[0026] [Description of reference numerals is as follows]:

[0027] 10- waterproof film, 100- membrane body, 110- first area, 111- first sub-area, 112- second sub-area, 120- second area, 121- third sub-area, 122- fourth sub-area, 200- release paper, 210- first release paper, 220- second release paper, 300- support body, 310- sub-support body, 311- first end of sub-support body, 312- second end of sub-support body, 311a- first protrusion, 311b- first recess, 312a- second recess, 312b- second protrusion, 313- third protrusion, 400- indication mark, DETAILED DESCRIPTION

[0028] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in this embodiment only illustrate the basic concept of the present invention in a schematic manner, so the diagram only shows the components related to the present invention rather than drawing according to the number, shape and size of the components in the actual implementation. The type, quantity and proportion of each component in the actual implementation can be a random change, and the component layout type may also be more complicated.

[0029] In addition, each embodiment of the following description has one or more technical features, but this does not mean that the user of the present invention must implement all the technical features in any embodiment at the same time, or can only implement part or all of the technical features in different embodiments separately. In other words, under the premise of being possible to implement, those skilled in the art can selectively implement part or all of the technical features in any embodiment according to the disclosure of the present invention and according to the design specifications or implementation requirements, or selectively implement a combination of part or all of the technical features in multiple embodiments, thereby increasing the flexibility of the implementation of the present invention.

[0030] As used in this specification, the singular forms "one", "an", and "the" include plural objects, and the plural form "a plurality" includes more than two objects, unless the content clearly indicates otherwise. As used in this specification, the term "or" is generally used in a sense that includes "and / or", unless the content clearly indicates otherwise, and the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium, and it can be a connection between two elements or an interactive relationship between two elements. Relational terms such as the terms "first", "second", etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations, nor do they indicate or imply relative importance or implicitly indicate the number of technical features indicated. It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships 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, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. 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.

[0031] The utility model aims to provide a waterproof film, which can provide waterproof protection for patch-type medical devices to prevent the patch-type medical devices from becoming ineffective when exposed to water in scenarios such as when the patient is taking a bath, and to prevent the patient's wound located at the patch-type medical device from becoming infected when exposed to water.

[0032] In order to make the purpose, advantages and features of the utility model clearer, the utility model is further described in detail below in conjunction with the accompanying drawings. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the utility model. The same or similar reference numerals in the drawings represent the same or similar components.

[0033] Figure 1 FIG. 1 is an exploded schematic diagram of a waterproof film 10 provided by an embodiment of the present invention. Figure 1 As shown, the waterproof film 10 includes a film body 100, a release paper 200 and a support 300. The structure of the film body 100 is as shown in FIG. Figure 2 Please refer to Figure 2The membrane body 100 includes a first region 110 and a second region 120, and the first region 110 surrounds the outer periphery of the second region 120. The membrane body 100 also has a first surface (marked in the figure) and a second surface (not marked in the figure) opposite to each other, and an adhesive is provided on the portion of the first surface corresponding to the first region 110. Please return to reference Figure 1 Combined with Figure 2 The release paper 200 is bonded to the first surface by an adhesive, and the release paper 200 at least covers the first area 110 . The support body 300 is disposed on the second surface and bonded to at least the first area 110 .

[0034] The release paper 200 may also be called silicone paper or anti-adhesive paper, which is used to protect the adhesive on the first area 110 to prevent the adhesive from adhering to other surfaces before the waterproof film 10 is used. When the waterproof film 10 is used, after the second area 120 is covered on the patch-type medical device, the first area 110 is attached to the skin through the adhesive, so that the patch-type medical device is isolated or substantially isolated from the outside through the film body 100, and finally the support body 300 is torn off.

[0035] In this way, the membrane body 100 can provide waterproof protection for the patch-type medical device in scenarios such as when the patient is taking a bath. Before the support body 300 is torn off, the support body 300 provides support for the membrane body 100 at least in the first area 110, so as to at least increase the strength of the waterproof film 10 corresponding to the first area 110, thereby effectively preventing the first area 110 and the second area 120 from wrinkling or stacking. In this way, when the first area 110 is attached to the skin, it is not easy to generate bubbles between the first area 110 and the skin due to wrinkles or stacking, thereby reducing the occurrence of water leakage and improving the waterproof effect.

[0036] In the embodiment of the utility model, the membrane body 100 is made of a polymer material with good waterproof performance, and the optional materials include but are not limited to any one of polyurethane (PU), polyethylene terephthalate (PET), polytetrafluoroethylene (PTFE), etc. The thickness of the membrane body 100 is 0.01mm to 0.5mm. Preferably, the outer edge of the first area 110 extends to the edge of the membrane body 100, and the width d of the first area 110 is 2mm to 50mm, and the width d refers to the distance between the inner edge and the outer edge of the first area 110. The inner edge of the first area 110 is the intersection line of the first area 110 and the second area 120, and the outer edge of the first area 110 is the edge of the first area 110 away from the second area 120.

[0037] In practice, the area of ​​the membrane body 100 is slightly larger than the area of ​​the patch-type medical device. In order to make the second area 120 cover the patch-type medical device and the first area 110 surround the periphery of the patch-type medical device, it is preferred to set the following on the membrane body 100: Figure 2 The indicator mark 400 shown is located on the second area 120. The specific shape of the indicator mark 400 is designed according to the appearance of the patch medical device or the structural features on the patch medical device, as long as the indicator mark 400 is aligned with the corresponding position of the outer contour of the patch medical device or the structural features on the patch medical device, the second area 120 covers the patch medical device and the first area 110 surrounds the periphery of the patch medical device.

[0038] The indicator mark 400 can be directly printed on the film body 100, or can be made into a label first and then connected to the film body 100. The indicator mark 400 is disposed on at least one of the first surface and the second surface.

[0039] Please continue to refer to Figure 2 Combined with Figure 1 , the first area 110 includes a first sub-area 111 and a second sub-area 112 connected end to end, and the second area 120 includes a third sub-area 121 and a fourth sub-area 122. The first sub-area 111 is located outside the third sub-area 121, and the second sub-area 112 is located outside the fourth sub-area 122. And, the release paper 200 includes a first release paper 210 and a second release paper 220. The first release paper 210 at least covers the first sub-area 111, and the second release paper 220 at least covers the second sub-area 112. The indicator mark 400 is set on the third sub-area 121.

[0040] During the application of the waterproof film 10, the first sub-region 111 is located above the second sub-region 112, and the third sub-region 121 is located above the fourth sub-region 122, that is, the first sub-region 111 and the third sub-region 121 together constitute the upper half of the film body 100, and the second sub-region 112 and the fourth sub-region 122 together constitute the lower half of the film body 100. When using the waterproof film 10, first align the indicator mark 400 with the corresponding position of the outer contour of the patch-type medical device or with the structural features on the patch-type medical device, and tear off the first release paper 210, so that the first sub-region 111 is first attached to the skin, and then tear off the second release paper 210, and the second sub-region 112 is attached to the skin. The advantage of doing this is that even if the first area 110 is partially wrinkled or stacked, the wrinkled part or the stacked part is located on the part of the second sub-area 112 away from the first sub-area 111, that is, the wrinkled part or the stacked part is located in the lower part of the membrane body 100, and patients generally take a shower, and water flows on the human body from top to bottom, and it is not easy to penetrate into the location of the patch medical device at the wrinkles, thereby reducing the possibility of the patch medical device coming into contact with water and the patient's wound coming into contact with water.

[0041] The material of the support body 300 can be paper or a polymer material. The support body 300 can be an annular structure covering only the first area 110, or a sheet structure covering the entire second surface. The thickness of the support body 300 can be 0.1 mm to 0.5 mm, which is determined according to specific needs, but it should be understood that the greater the thickness of the support body 300, the better its support effect on the membrane body 100, and before the support body 300 is torn off, the first area 110 and the second area 120 are less likely to be wrinkled or stacked.

[0042] Please refer to Figure 3 When the support body 300 is an annular structure, it is preferred that the support body 300 includes a plurality of sub-support bodies 310 connected end to end in sequence. This type of support body 300 is easier to tear off from the membrane body 100 .

[0043] More preferably, each sub-support 310 is provided with an easy-tear point. The operator uncovers the sub-support 310 from the easy-tear point and tears off the sub-support 310, making the tearing operation of the sub-support 310 simpler and more convenient.

[0044] The embodiment of the utility model has no special limitation on the specific configuration of the tear point, as long as it is convenient to operate. In an optional embodiment, the tear point is arranged at the junction of two adjacent sub-support bodies 310.

[0045] Specifically, Figure 4As shown, each sub-support body 310 has two opposite ends, namely a first end 311 and a second end 312. For two adjacent sub-support bodies 310, one sub-support body 310 is a first sub-support body, and the other sub-support body 310 is a second sub-support body, and the first end 311 of the first sub-support body is connected to the second end 312 of the second sub-support body. The edge of the first end 311 of the first sub-support body is formed into a first corrugated structure, and the edge of the second end 312 of the second sub-support body is formed into a second corrugated structure, and the second corrugated structure is consistent with the first corrugated structure. Here, the first corrugated structure includes at least one first protrusion 311a and at least one first recessed portion 311b, and the second corrugated structure includes at least one second protrusion 312a and at least one second recessed portion 312b. Thus, "the second corrugated structure matches the first corrugated structure, so that the second corrugated structure matches the first corrugated structure" means that when the first end 311 of the first sub-support body is connected to the second end 312 of the second sub-support body, the first protrusion 311a extends into the second recess 312b, and the contour line of the first protrusion 311a coincides with the contour line of the second recess 312b, the first recess 311b accommodates the second protrusion 312a, and the contour line of the first recess 311b coincides with the contour line of the second protrusion 312a. For the first sub-support body 310, the easy-tear point includes the first protrusion 311a, and for the second sub-support body 310, the easy-tear point includes the second protrusion 312a.

[0046] It should be noted that, in the corrugated structure, the convex portion and the concave portion are relative concepts, both appear at the same time, and the convex portion is convex relative to the concave portion, while the concave portion is concave relative to the convex portion.

[0047] In addition, when tearing off the support body 300, each sub-support body 310 can be torn off in order from top to bottom. In this regard, one of the multiple sub-support bodies 300 is used as a predetermined sub-support body 310, and the predetermined sub-support body 310 at least partially covers the first sub-region 111 and is at least partially located above the other sub-support bodies 310. A third protrusion 313 is formed on the outer edge or inner edge of the predetermined sub-support body 310, and the third protrusion 313 is adjacent to the first end 311 or the second end 312 of the predetermined support body. In this way, the operator can tear off the predetermined sub-support body 310 first, and the operator can easily and quickly uncover the predetermined sub-support body 310 at the third protrusion 313.

[0048] In an exemplary embodiment, the support body 300 includes three sub-support bodies 310, one of the three sub-support bodies 310 is a first sub-support body (not marked in the figure), and the other two are second sub-support bodies (not marked in the figure), the first sub-support body covers at least an area of ​​the first sub-region 111, and the two second sub-support bodies jointly cover the other areas of the first region 110 except the part covered by the first sub-support body. In this way, during use, the first sub-support body is located above the two second sub-support bodies, and the heights of the two second sub-support bodies are basically the same. Therefore, the third protrusion 313 is arranged on the first sub-support body, and when tearing off the support body 300, the first sub-support body is torn off first, and then the two second sub-support bodies are torn off.

[0049] It should be noted that, although the waterproof film 10 is used as an example to provide waterproof protection for the patch-type medical device, its application scenario is not limited to this. For example, some devices are provided with a patch-type structure, and when cleaning these devices, the waterproof film 10 can be used to provide waterproof protection for the patch-type structure.

[0050] Although the utility model is disclosed as above, it is not limited thereto. Those skilled in the art may make various modifications and variations to the utility model without departing from the spirit and scope of the utility model. Thus, if these modifications and variations of the utility model fall within the scope of the claims of the utility model and their equivalents, the utility model is also intended to include these modifications and variations.

Claims

1. A waterproof film, characterized in that: include: The membrane body comprises a first region and a second region, wherein the first region surrounds the outer periphery of the second region; the membrane body further comprises a first surface and a second surface opposite to each other, wherein an adhesive is provided on a portion of the first surface corresponding to the first region; a release paper, bonded to the first surface by the adhesive and covering at least the first area; as well as, The support body is arranged on the second surface and is bonded to at least the first area.

2. The waterproof film according to claim 1, characterized in that: The waterproof film further includes an indicator mark, which is disposed on the first surface and / or the second surface, and is located in the second area.

3. The waterproof film according to claim 2, characterized in that: The first area includes a first sub-area and a second sub-area connected end to end; the second area includes a third sub-area and a fourth sub-area; the first sub-area is located outside the third sub-area, the second sub-area is located outside the fourth sub-area, and the indicator mark is located in the third sub-area; The release paper includes a first release paper and a second release paper, wherein the first release paper at least covers the first sub-region, and the second release paper at least covers the second sub-region.

4. The waterproof film according to claim 1, characterized in that: The support body is an annular structure.

5. The waterproof film according to claim 4, characterized in that: The support body comprises a plurality of sub-support bodies which are sequentially connected end to end.

6. The waterproof film according to claim 5, characterized in that: At the junction of two adjacent sub-support bodies, the edge of the end of one of the sub-support bodies is formed into a first corrugated structure, and the edge of the end of the other sub-support body is formed into a second corrugated structure, and the second corrugated structure is consistent with the first corrugated structure.

7. The waterproof film according to claim 5 or 6, characterized in that: The first area includes a first sub-area and a second sub-area connected end to end; the second area includes a third sub-area and a fourth sub-area; the first sub-area is located outside the third sub-area, and the second sub-area is located outside the fourth sub-area; the waterproof film further includes an indicator mark, and the indicator mark is located in the third sub-area; One of the plurality of sub-support bodies is a predetermined sub-support body, and the predetermined sub-support body at least partially covers the first sub-region; a protrusion is formed on the outer edge or inner edge of the predetermined sub-support body, and the protrusion is adjacent to an end of the predetermined sub-support body.

8. The waterproof film according to claim 1, characterized in that: The thickness of the support body is 0.1 mm to 0.5 mm.

9. The waterproof film according to claim 1, characterized in that: The width of the first region is 2 mm to 50 mm.

10. The waterproof film according to claim 1, characterized in that: The thickness of the membrane body is 0.01 mm to 0.5 mm.

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