JP2019203054A - Pressure sensitive adhesive sheet and article having the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pressure-sensitive adhesive sheet capable of preventing the occurrence of a wound on the skin at the time of peeling while maintaining the pressure-sensitive adhesive force to the skin. An adhesive sheet (100) includes a sheet member (10) having an adhesive surface and a mesh member (20) releasably provided on the adhesive surface of the sheet member (10), and the adhesive surface of the sheet member (10) is a mesh of the mesh member (20). It is configured to adhere to the skin of the patient through 21. The sheet member 10 has, for example, an opening 30 formed therein, and the mesh member 20 is attached to the sheet member 10 so as to cover the opening 30. With the article 200 such as an electrode placed directly under the opening 30 of the sheet member 10, the article 200 can be fixed onto the patient's skin using the adhesive sheet 100. [Selection diagram] Figure 1

Description

  The present invention relates to an adhesive sheet (referred to as an “adhesive sheet” in this specification including sheet-like and tape-like) for fixing an article to a human body, for example. The present invention also relates to an article provided with an adhesive sheet. Although the kind of goods is not specifically limited, As an example, the medical device attached and used for a human body can be mentioned.

  Conventionally, for example, an adhesive sheet for fixing an electrode for measuring an electrocardiogram on a human skin is known (Patent Documents 1 and 2). Since it becomes difficult to accurately measure the electrocardiogram when the electrode is detached from the skin, the adhesive sheet is required to have a performance capable of firmly fixing the electrode on the skin.

  In recent years, in the medical field, it is required to manage the skin condition more strictly than before and avoid skin wounds. For example, there is a need to prevent compression wounds that occur in compressed skin and skin tears that occur in patients with weak skin such as the elderly and infants.

  First, medical device related pressure ulcer is a problem. Here, the Japan Pressure Ulcer Society defines “medical devices” that include nursing support devices such as restraining bands in addition to commonly used medical devices. In addition, a wound generated by a local external force applied to the patient's body when the medical device is mounted is referred to as a “medical device compression wound”. Second, skin tears are also a problem. Here, the Japanese Society for Wound, Ostomy and Incontinence Management defines skin tear as damage to the deep dermis (partial wound) caused by skin tearing due to friction and slippage. A specific example of skin tears is that the skin tears when the adhesive bandage is peeled off.

  Such medical-related device compression wounds and skin tears are likely to occur in patients with weak skin, such as patients with skin diseases, infants and the elderly. In addition, it is particularly likely to occur when a skin adhesive sheet with strong adhesive strength is used. For example, when fixing electrocardiogram electrodes, ventilator tracheal tubes, vascular indwelling catheters, urethral indwelling catheters, nasogastric tube tubes, nasal oxygen cannulas, etc. to the skin of patients with weak skin using a sheet think of. When an electrode for electrocardiogram measurement, a catheter, and a tracheal tube are fixed to a patient with a skin adhesive sheet, a skin adhesive sheet having a relatively strong adhesive force is selected so that they do not come off. On the other hand, urethral placement catheters, nasogastric tube, and nasal oxygen cannula need to be replaced regularly to clean them. In other words, it is necessary to remove the adhesive sheet from the patient's skin. However, when the adhesive sheet is peeled off, a strong force is applied to the patient's skin from the adhesive sheet. Then, when the patient's skin is weak, when the adhesive sheet is peeled off, there is a risk that a wound may occur at a site where a strong force is applied. In addition, when the medical tube is changed repeatedly, a strong force is applied to the same part of the skin. As a result, there is a problem that once a wound is made worse. Therefore, in order to avoid this, a contrivance is made such as attaching a sheet to another part.

JP-A-7-136143 JP 10-272110 A

Bryan Laulicht, Robert Langer, and Jeffrey M. Karp, “Quick-release medical tape”, PNAS, vol. 109, No. 46, 18803-18808 (2012)

  Conventionally, several methods have been used to reduce wounds and pain that occur when the above-mentioned adhesive sheet for skin is peeled off. For example, in order to reduce the external force applied to the patient's skin when the adhesive sheet is peeled off, it is conceivable to weaken the adhesive force of the adhesive sheet. For example, it is conceivable to use an adhesive having low adhesiveness. Alternatively, the adhesive is not applied to one side of the adhesive sheet, but is applied only to a part of the adhesive sheet, or the adhesive is partially removed from the adhesive applied to one side of the adhesive sheet. It is conceivable to reduce the area of the pressure-sensitive adhesive. However, with such a technique, the adhesive strength to the skin is reduced even when the skin adhesive sheet is not peeled off. Therefore, the medical tube or the like is not sufficiently fixed.

  In addition, as shown in Non-Patent Document 1, as a technique for avoiding applying a strong force to the skin while maintaining the adhesive strength of the adhesive sheet, between the adhesive layer and the base material layer of the adhesive sheet, A method of providing an intermediate layer that facilitates separation is known. In this method, when the pressure-sensitive adhesive sheet is peeled off, the pressure-sensitive adhesive layer and the base material layer are separated by an intermediate layer. Therefore, only the base material layer can be removed while leaving the adhesive layer on the adhesive surface. Then, it is possible to avoid applying a strong force to the object when removing the base material layer while maintaining the adhesive strength of the adhesive sheet. When such a method using an intermediate layer is used for a medical sheet, the risk of skin wounds that occur when the sheet is peeled off is reduced. However, after removing the substrate layer, an adhesive layer remains on the skin. The adhesive layer remaining on the skin gives irritation to the skin. On the other hand, the adhesive layer cannot be left for a long time on the skin of a patient who is sensitive to irritation. For this reason, it is necessary to remove the adhesive layer from the patient's skin at an early stage. Then, when this adhesive layer is peeled off, a strong force is applied to the skin. Eventually, the skin may be damaged.

  In addition, a technique (remover method) is also known in which a solvent is applied to an adhesive sheet immediately before the adhesive bandage is peeled off, the adhesive strength is weakened, and then the adhesive sheet is peeled off to reduce the wound. However, such remover methods leave solvent on the skin after treatment. Then, when the adhesive sheet is newly fixed again in that state, there is a problem that the adhesive force of the adhesive sheet fixed again falls. Furthermore, in the waterproof sheet, since the solvent does not soak into the sheet member, it is necessary to first peel off the member a little, and then remove it while soaking the solvent directly between the adhesive layer and the skin, which takes time to remove the sheet. There is a problem.

  Furthermore, the conventional adhesive sheet has a wide adhesive surface with the skin when medical equipment is fixed to the skin. And when peeling such an adhesive sheet, big force was required. As a result, it has been difficult to perform detailed operations and operations that require high accuracy at the same time as the adhesive sheet is peeled off. This caused the following problems.

  For example, consider a case in which only the adhesive sheet is replaced while the catheter is left in the neck while the central venous catheter is placed in the neck and fixed to the skin with the adhesive sheet. In this case, when exchanging the adhesive sheet, it is necessary to peel only the adhesive sheet adhering to the skin without moving the position of the catheter as much as possible. In other words, it is required to maintain the position of the catheter with high accuracy, such as pressing the catheter with a finger so that the infusion needle does not move. However, when peeling the adhesive sheet, a great force is applied to the skin. Therefore, it has been difficult to maintain the position of the catheter with high accuracy in such a state.

  Conventionally, in order to prevent the patient's skin from being damaged when the adhesive bandage is peeled off, for example, the adhesive strength of the adhesive bandage is weakened to protect the keratin on the surface of the skin. It was considered to do so. However, in order to firmly apply a low-adhesive adhesive bandage to the skin, it is necessary to expand the area and apply it to the skin. However, when the adhesive bandage area is increased, the possibility of the adhesive bandage being applied to areas where the connection between the skin (skin) and the subcutaneous tissue (meat) is weak or where the epidermis is scratched increases. And when peeling adhesive bandage, such a part is torn and the skin is peeled from the subcutaneous tissue. In other words, the conventional adhesive bandage (silicone) that weakens the adhesive strength and protects the horny layer needs to have a large application area in order to strengthen the adhesive strength. , There was a problem that it was not always possible to prevent the damage that the skin peeled from the subcutaneous tissue.

  Conventionally, when an electrocardiogram electrode or the like is attached to the skin of a patient with body hair through an adhesive seal, a sufficiently sticky material is required. The patient had pain and the patient had pain, so it was necessary to shave the patient's hair before attaching the electrodes.

  Therefore, the main object of the present invention is to prevent the occurrence of wounds on the skin when the pressure-sensitive adhesive sheet is peeled off while maintaining the adhesive strength to the skin. More specifically, the present invention is aimed at preventing damage to the skin peeling off from the subcutaneous tissue. Preferably, an object of the present invention is to provide an adhesive sheet suitable for fixing an article such as a medical device to a human body.

  The inventor of the present invention, as a result of earnestly examining the means for solving the problems of the above-described prior art, has provided a mesh member on the adhesive surface of the sheet member, and the adhesive surface is attached to the patient through the mesh of the mesh member during bonding. It was found that by attaching to the skin and peeling the sheet member while pressing the mesh member against the skin surface at the time of peeling, it is possible to prevent the occurrence of wounds at the peeling portion of the sheet member. In addition, the present inventor has found a structure in which the sheet member and the mesh member are easily peeled off by partially forming a portion where the sheet member is not attached on the mesh member. Furthermore, a configuration was devised in which an opening was formed in a part of the sheet member, and a mesh member was attached so as to cover the opening so that an article such as a medical device could be fixed to the opening. . The inventor has conceived that the problems of the prior art can be solved based on the above knowledge, and has completed the present invention. More specifically, the present invention has the following configuration.

  The first aspect of the present invention relates to an adhesive sheet. The pressure-sensitive adhesive sheet according to the present invention is mainly used for fixing an article such as a medical device to a human body. The pressure-sensitive adhesive sheet may be a relatively short sheet, and may be sold in the form of a rectangular shape, other polygonal shapes, or a circular shape and packaged one or more. The pressure-sensitive adhesive sheet may be a relatively long tape that is sold in a wound state, and may be used by being pulled out by a necessary length.

  The pressure-sensitive adhesive sheet according to the present invention includes a sheet member having a pressure-sensitive adhesive surface and a mesh member that is detachably provided on the pressure-sensitive adhesive surface of the sheet member. The adhesive sheet is configured such that the adhesive surface of the sheet member adheres to the object through the mesh of the mesh member. And a mesh member has a site | part to which the sheet | seat member is not attached partially. In order to form the “part where the sheet member is not attached”, an opening may be formed in the sheet member, the mesh member may be extended from the sheet member, or other methods may be used. Good.

  According to the said structure, since the adhesive surface of a sheet | seat member adheres to skin through the mesh | network of a mesh member at the time of adhesion | attachment, the adhesive force of the whole adhesive sheet can be maintained. On the other hand, at the time of peeling, the sheet member is pulled in the opposite direction while applying a force in the direction of pressing the mesh member against the skin surface. At this time, the force pulling the sheet member is relaxed or offset by the force pressing the mesh member. Thereby, when peeling a sheet | seat member, it can avoid that big external force is added to skin. As a result, the sheet member can be easily peeled off, and it is possible to prevent the skin from being damaged when the sheet member is peeled off. Furthermore, even when the sheet member is applied to the skin surface with hair, the mesh member acts to hold down the hair, so that it adheres firmly to the skin surface with body hair, and the sheet member The hair can be prevented from coming off during peeling. As a result, pain at the time of peeling of the sheet member is avoided and shaving is unnecessary. Further, since there is a portion where the sheet member is not attached to the mesh member (that is, a portion where the mesh member is exposed), the sheet member and the mesh member can be easily separated from each other as a trigger. As a result, the sheet member can be peeled off with little pain to the patient. In addition, according to the pressure-sensitive adhesive sheet of the present invention, sufficient adhesive force can be obtained without taking a large sticking area, so that it is possible to prevent damage such as peeling of the skin from the subcutaneous tissue.

  In the pressure-sensitive adhesive sheet according to the present invention, the sheet member may have an opening, or may be provided with a separation line that can form the opening. The separation line includes, for example, a perforation line and a slit line. The mesh member is attached to the sheet member so as to cover the opening. The mesh member is preferably attached to the entire adhesive surface of the sheet member, but may be attached to a range covering at least the opening of the sheet member. Further, the mesh member may be attached to the adhesive surface of the sheet member in a state of extending from the entire circumference or a part of the edge of the sheet member.

  As in the above configuration, an opening such as an electrode for electrocardiogram measurement is installed in the part where the opening is formed (for example, directly below) by forming an opening in the sheet member and attaching a mesh member under the opening. This makes it possible to fix the article to a human body using the pressure-sensitive adhesive sheet according to the present invention. When peeling the adhesive sheet, the sheet member can be pulled upward while pressing the mesh member and the article downward through the opening of the sheet member, so that the sheet member can be easily peeled off from the mesh member. Can do. Further, by arranging the article in the opening of the sheet member, it is possible to avoid adhesion of the adhesive layer of the sheet member to the entire surface of the article. For this reason, it is possible to suppress the situation where the adhesive adheres to the article and becomes dirty, and the article can be used repeatedly easily. Moreover, it becomes easy to peel an adhesive layer from articles | goods by interposing a mesh member between an article | item and an adhesion layer. Furthermore, since the article fixed to the human skin or the like can be visually recognized through the opening of the sheet member, it is easy to confirm the fixed state of the article. As a result, it is not necessary to repeatedly remove the adhesive sheet only for checking the fixed state of the article.

  In the pressure-sensitive adhesive sheet according to the present invention, the opening of the sheet member includes a relatively wide main opening and a relatively narrow sub-opening that connects the main opening and the edge of the sheet member, a perforation line, or a slit line. It is preferable. The main opening is used as a fixing part for an article such as an electrode. Further, by forming a sub-opening, a perforation line, or a slit line so as to extend from the main opening to the edge of the sheet member, an operation for peeling the sheet member from the mesh member is facilitated. In addition, when the article to be fixed is an article having an electrode body and a cable, for example, the position of the main opening of the sheet member and the position of the electrode body are aligned, and the position of the cable and the sub-opening of the sheet member are aligned. This stabilizes the fixed state of the article on the human skin.

  In the pressure-sensitive adhesive sheet according to the present invention, the sheet member may be divided into a plurality of parts by openings. That is, a plurality of sheet members are provided on one mesh member. By doing in this way, a sheet | seat member can be partially peeled from a mesh member. Thereby, the convenience of an adhesive sheet improves.

  The pressure-sensitive adhesive sheet according to the present invention may further include an incision tape between the sheet member and the mesh member. The adhesive sheet is configured such that when the incision tape is pulled, the sheet member is torn along the incision tape. In particular, the incision tape is preferably provided at a position reaching the opening from the edge of the sheet member. Thereby, a part of sheet member can be cut open easily.

  In this invention, a mesh member is good also as having an extension part extended from the edge of a sheet | seat member. In particular, the mesh member is preferably provided on the entire pressure-sensitive adhesive surface of the sheet member and has an extending portion extending from the edge of the pressure-sensitive adhesive surface. In addition, as above-mentioned, while forming an opening in a sheet | seat member, naturally it is also possible to form an extension part in a mesh member.

  When the area of the mesh member is completely the same as or smaller than the area of the sheet member, it is difficult to press the mesh member against the skin surface side when the sheet member is peeled from the mesh member. On the other hand, as in the above configuration, the mesh member has an extending portion that is produced at least partially from the edge of the adhesive surface of the sheet member, so that the sheet member can be pressed while pressing the extending portion with the finger pad. It is possible to perform an operation of peeling off. Thereby, it becomes easy to peel this sheet | seat member from a mesh member, maintaining the adhesiveness by a sheet | seat member.

  The second aspect of the present invention relates to an article with an adhesive sheet. The article with the pressure-sensitive adhesive sheet according to the present invention includes the pressure-sensitive adhesive sheet according to the first aspect described above and an article provided at a position overlapping the opening of the sheet member. In the present invention, the type of the article is not particularly limited, but an article that is used by being attached to a human body can be suitably employed. In particular, the article is preferably a medical device used by being attached to a human body.

  In the article with the pressure-sensitive adhesive sheet according to the present invention, the article may be provided on the lower layer side of the mesh member. Accordingly, since the article can be prevented from coming into direct contact with the adhesive layer of the sheet member, the sheet member can be easily peeled off from the article, and the adhesive can be prevented from remaining on the article and becoming dirty.

  In the article with the pressure-sensitive adhesive sheet according to the present invention, the article may be interposed between the sheet member and the mesh member. This can prevent the article from coming into direct contact with the human skin. Further, by sandwiching the article between the sheet member and the mesh member, the article can be more stably fixed to the body.

  ADVANTAGE OF THE INVENTION According to this invention, the adhesive sheet utilized when fixing articles | goods, such as a medical device, to a human body can be improved. That is, while maintaining the adhesive strength of the adhesive sheet to the skin, it is difficult to peel off and stabilizes to the body. On the other hand, when the adhesive sheet is peeled off, the adhesive surface is easily peeled off. Sometimes it is possible to prevent the occurrence of wounds in the skin. In particular, according to the present invention, it is possible to prevent the skin from being peeled from the subcutaneous tissue.

FIG. 1 is an exploded perspective view showing components of an article with an adhesive sheet according to the first embodiment. FIG. 2 is a plan view showing the article with the pressure-sensitive adhesive sheet according to the first embodiment. 3 is a cross-sectional view taken along the line III-III shown in FIG. FIG. 4 shows a partially enlarged example of the cross section of the pressure-sensitive adhesive sheet. FIG. 5 shows a partially enlarged modification of the cross section of the adhesive sheet. FIG. 6 is a perspective view showing an example of an operation for peeling the adhesive sheet from the skin. FIG. 7 is a plan view showing an article with an adhesive sheet according to the second embodiment. 8 is a cross-sectional view taken along the line VIII-VIII shown in FIG. FIG. 9 is an exploded perspective view showing components of an article with an adhesive sheet according to the third embodiment. FIG. 10 is a cross-sectional view showing an arrangement example of the constituent elements of the article with an adhesive sheet according to the third embodiment. FIG. 11 is an exploded perspective view showing components of the pressure-sensitive adhesive sheet according to the fourth embodiment. FIG. 12 shows a partially enlarged cross section of the pressure-sensitive adhesive sheet according to the fourth embodiment. FIG. 13 is an exploded perspective view showing components of an article with an adhesive sheet according to the fifth embodiment. FIG. 14 is a plan view showing an article with an adhesive sheet according to the sixth and seventh embodiments. FIG. 15 is a plan view showing an article with an adhesive sheet according to the eighth and ninth embodiments. FIG. 16 is an exploded perspective view showing components of an article with an adhesive sheet according to the tenth embodiment. FIG. 17 is an exploded perspective view showing components of an article with an adhesive sheet according to the eleventh embodiment. FIG. 18 is an exploded perspective view showing components of the adhesive sheet according to the twelfth embodiment.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. This invention is not limited to the form demonstrated below, The thing suitably changed in the range obvious to those skilled in the art from the following forms is also included.
In the present specification, “A to B” means “A to B”.

[First Embodiment]
A first embodiment of an article with an adhesive sheet according to the present invention will be described with reference to FIGS. As shown in FIG. 1, the present invention includes an adhesive sheet 100 and an article 200. The pressure-sensitive adhesive sheet 100 is, for example, for fixing the article 200 to a human body (particularly skin). In addition, the example of the article 200 is an article that is used by being fixed to a human body.

Examples of the article 200 may include an electrical signal transmission article, an optical signal transmission article, a liquid transportation article, a pneumatic transportation article, and other articles. Examples of articles for electrical signal transmission include electrodes for electrocardiogram measurement, electrodes for electromyogram measurement, electroencephalogram measurement electrodes, other electrodes attached to the body surface, cameras (light sensors), thermistors, blood pressure monitors, A CO ₂ sensor, an O ₂ sensor, a vital sensor, a blood flow meter, an electroencephalogram sensor, and a pressure sensor. Examples of articles for transmitting optical signals are lenses, optical probes, and optical fibers. Examples of liquid transport articles are indwelling needles, injection needles, urine removal rubber, infusion tubes, cannulas, drain tubes and catheters. Examples of pneumatic articles are tracheal tubes and air supply masks. Other articles that do not involve transmission and transportation can include adhesives, absorbent pads, cochlear implants, markers, magnetic therapy devices, name tags, and accessories. For example, when these articles are connected to medical electronic devices, functions such as electrical signal transmission, optical signal transmission, liquid transportation, and pneumatic transportation are realized. However, the article 200 of the present invention is not limited to the above.

  In the example shown in the figure of the present application, an electrode for electrocardiogram measurement is used as the article 200. The electrode 200 includes a main body 210 that is mounted on the patient's skin and detects a potential, and a cable 220 connected to the main body 210. The electrical signal acquired by the main body 210 is transmitted to an electrocardiograph (not shown) through the cable 220. In this application, the structure of the adhesive sheet 100 for fixing the electrode 200 to a patient's body will be described in detail by taking such an electrode 200 as an example.

  As shown in FIG. 1, the adhesive sheet 100 includes a sheet member 10 having an adhesive surface and a mesh member 20 attached to the adhesive surface. The pressure-sensitive adhesive sheet 100 may be a relatively short sheet that is individually wrapped, or may be a relatively long tape that can be wound. The shape (in plan view) of the pressure-sensitive adhesive sheet 100 is not limited to a quadrangular shape, and may be a triangular shape, a pentagonal shape, other polygonal shapes, or a circular shape. In the present embodiment, the electrode 200 is disposed on the lower surface side of the mesh member 20 (that is, between the mesh member 20 and the patient's skin). For this reason, the adhesive sheet 100 is adhered to the patient's skin by the adhesive surface of the sheet member 10, and the electrode 200 is sandwiched between the adhesive sheet 100 and the patient's skin.

  The sheet member 10 is a member having an adhesive surface on at least one side. The mesh member 20 is a member having a plurality of meshes 21. The mesh member 20 is attached to the adhesive surface of the sheet member 10 and can be peeled from the sheet member 10 by hand. The mesh member 20 is preferably attached over substantially the entire adhesive surface of the sheet member 10. For example, the area where the mesh member 20 is attached to the sheet member 10 is preferably 70% or more, 80% or more, or 90% or more with respect to the area of the adhesive surface of the sheet member 10, and the mesh member 20 may have a portion extending from the edge of the sheet member 10.

  The sheet member 10 basically includes a base material layer 11 and an adhesive layer 12. The base material layer 11 and the adhesive layer 12 are fixed so as not to be dissociated. The sheet member 10 has a laminated structure in which an adhesive layer 12 is laminated on one side of the base material layer 11, and an adhesive surface is formed by the adhesive layer 12.

  What is necessary is just to form the base material layer 11 with the material used for the base material of a general medical sheet. For example, the base material layer 11 can be composed of a woven or nonwoven fabric having elasticity, a soft film, or the like. Specifically, the substrate layer 11 includes various materials such as a polyvinyl chloride film, a polyethylene film, a polyester film, a polypropylene film, an ethylene-propylene copolymer film, an ethylene-vinyl acetate copolymer film, and a polyurethane film. Can be used.

  The adhesive layer 12 is a layer that adheres to the skin, and basically comprises an adhesive polymer as a main component. Examples of the material of the pressure-sensitive adhesive constituting the pressure-sensitive adhesive layer 12 include a synthetic rubber-based pressure-sensitive adhesive mainly composed of a styrene-isobutylene-styrene copolymer, a polyurethane-based pressure-sensitive adhesive, a polysiloxane-based pressure-sensitive adhesive, a natural rubber-based pressure-sensitive adhesive, Examples include polyether-based pressure-sensitive adhesives, silicone-based pressure-sensitive adhesives, and acrylic pressure-sensitive adhesives, and these can be used alone or in admixture of two or more. Moreover, as the state of the pressure-sensitive adhesive constituting the pressure-sensitive adhesive layer 12, there is a gel state of a dispersion material having a high viscosity and lost fluidity in addition to a high-viscosity liquid state.

  Here, the thickness direction sectional view shown in FIG. 4 shows an example of the case where the adhesive layer 12 is made of a gel-like adhesive. As shown in FIG. 4, when the adhesive layer 12 is made of a deformable gel adhesive, when the adhesive sheet 100 is pressed against the patient's skin, the adhesive layer 12 becomes the mesh member 20. Oozes from the mesh 21 and adheres to the skin surface. "Gel" generally refers to a dispersed material that has a high viscosity and has lost its fluidity. In particular, in the present specification, “gel” means a dispersion substance containing water, silicone oil, or the like as a dispersion medium and containing a three-dimensional network polymer as a dispersoid. In other words, the “gel” in the present invention has a deformable flexibility while losing fluidity due to the dispersion medium contained in the network structure of the polymer that is one of the dispersoids.

  As such a gel-like pressure-sensitive adhesive layer 12, for example, a known pressure-sensitive adhesive used for a patch such as a poultice can be used. As an example, the adhesive layer 12 is made of a rubber-based adhesive mainly composed of natural rubber, a silicone-based adhesive mainly composed of polydimethylsiloxane rubber (silicone gel), n-butyl acrylate, or the like. An acrylic pressure-sensitive adhesive, urethane-based pressure-sensitive adhesive, polyethylene glycol-based pressure-sensitive adhesive, and polyvinyl alcohol-based pressure-sensitive adhesive having a main component can be suitably used. In particular, the adhesive is preferably for medical use. The thickness of the gel-like adhesive layer 12 is not particularly limited, but may be, for example, about 0.03 to 2.0 mm, and is particularly preferably larger than the thickness of the mesh member 20.

  On the other hand, the thickness direction sectional view shown in FIG. 5 shows another example in the case where the adhesive layer 12 is formed of a non-gel adhesive. As shown in FIG. 5, even if the adhesive layer 12 is non-gel, there is no problem as long as the base material layer 11 laminated thereon has elasticity. In this case, when the adhesive sheet 100 is pressed against the patient's skin, the base material layer 11 expands and contracts, so that the adhesive layer 12 adheres to the skin through the mesh 21 of the mesh member 20. Thus, it is possible to maintain the adhesive force of the adhesive sheet 100 also by forming the base material layer 11 with an elastic material. Examples of stretchable materials are woven fabrics, non-woven fabrics, or porous films. Further, for example, a fiber made of a thermoplastic resin such as polypropylene, polyethylene, polyester, or nylon, which has been subjected to a hydrophilization treatment and further made into a non-woven fabric may be used. Examples of the nonwoven fabric include air-through nonwoven fabric, point bond nonwoven fabric, spunbond nonwoven fabric, and melt blown nonwoven fabric.

  When the base material layer 11 is formed of an elastic material, the expansion / contraction rate of the sheet member 10 including the base material layer is preferably 110% or more or 150% or more, and particularly preferably 110 to 300%. . The “stretch rate” is a ratio (percentage) of the length in the extension direction in the maximum extension state to the length in the extension direction in the natural state. In the present invention, the expansion / contraction rate is measured as follows, for example. First, the measurement object is left for 60 minutes in an atmosphere of 10 ° C. ± 2 ° C. and a relative humidity of 60% ± 5% RH, and the length (A) in the extension direction in this natural state is measured. Secondly, the object to be measured in the natural state is stretched to the state immediately before breaking in the stretching direction (that is, the maximum stretched state), and the length (B) in the stretched direction in the maximum stretched state is measured. And (B / A) * 100 is calculated | required and this is made into an expansion-contraction rate.

  Further, as shown in FIGS. 1 to 3, an opening 30 is formed in the sheet member 10. That is, the opening 30 is a through hole formed through the base material layer 11 and the adhesive layer 12 constituting the sheet member 10 in the thickness direction. Note that no opening corresponding to the opening 30 of the sheet member 10 is formed in the mesh member 20. For this reason, the mesh member 20 is attached to the sheet member 10 so as to cover at least the opening 30 of the sheet member 10 from the adhesive surface side. Further, when no other member (for example, a water shielding sheet 40 described later) is interposed between the sheet member 10 and the mesh member 20, the mesh member 20 is exposed through the opening 30 of the sheet member 10.

  As shown in FIG. 2, in the present embodiment, the opening 30 of the sheet member 10 includes a main opening 31 formed at a position including the center (center of gravity) of the sheet member 10, and the main opening 31 from the main opening 31. It consists of two sub-openings 32 formed so as to connect the end edges. The main opening 31 is formed wider than the sub opening 32. The main opening 31 is preferably formed in, for example, a circular shape or an elliptical shape, but may be triangular, quadrangular, or other polygonal shapes. Since the main body portion 210 of the electrode 200 is disposed below the main opening 31, the shape and size of the main opening 31 may be designed according to the main body portion 210 of the electrode 200 to be fixed. In the present embodiment, the main opening 31 is formed larger than the main body portion 210 of the electrode 200. For this reason, the main body 210 of the electrode 200 can be accommodated in the main opening 31 and can be fixed to the patient's body via the mesh member 20 without contacting the main body 210 with the adhesive layer 12 of the sheet member 10. It has become.

  The sub-openings 32 are each formed in a straight line extending from the main opening 31 toward the edge of the sheet member 10. The maximum width of the sub-opening 32 may be narrower than the maximum width of the main opening 31. The two sub openings 32 are formed in a straight line with the main opening 31 in between. For this reason, the main opening 31 and the two sub-openings 32 are connected in a straight line. As a result, the sheet member 10 is divided into two parts, the first sheet part 10a and the second sheet part 10b, by forming these openings 31 and 32). In other words, the sheet member 10 including the first sheet portion 10 a and the second sheet portion 10 b separated from each other through the opening 30 is provided on the single mesh member 20.

  As shown in FIG. 2, the main body portion 210 of the electrode 200 is positioned below the main opening 31 of the sheet member 10, and the cable 220 of the electrode 200 is positioned below the sub-opening 32. Thereby, the electrode part 200 is fixed to a patient's body, without the main-body part 210 and the cable 220 contacting the adhesion layer 12 of the sheet | seat member 10, respectively.

  The mesh member 20 is a member having a structure in which a plurality of meshes 21 are defined by being woven so that yarns or fibers intersect each other. Alternatively, the mesh member 20 is made of plastic or the like in a lattice shape. In the present invention, the mesh member 20 is disposed so as to adhere to the adhesive layer 12 of the sheet member 10. As the mesh member 20, one in which the adhesive layer 12 of the sheet member 10 can adhere to an object such as skin through the mesh 21 of the mesh member 20 is employed. If it is a thing which satisfy | fills such conditions, the material and structure of the mesh member 20 can employ | adopt a well-known thing, and there is no restriction | limiting in particular. For example, the mesh member 20 is a filament made of one type or two or more types such as polyester, nylon, saran, polyethylene, polypropylene, polyvinyl chloride, ethylene-ethyl acrylate copolymer, polytetrafluoroethylene, surrin, and metal foil. What is necessary is just to knitted the thing or the fibrous thing into the mesh shape. High density polyethylene is particularly desirable. Alternatively, it may be formed in a lattice shape. The mesh member 20 can be constructed by weaving warp and weft, but the material forming the warp and the material forming the weft may be the same or different materials. May be.

The mesh member 20 is configured to be peelable from the adhesive surface (adhesive layer 12) of the sheet member 10. The mesh member 20 may be any member that can be peeled from the adhesive surface of the sheet member 10 manually without causing damage or tearing to both the mesh member 20 and the sheet member 10. For example, the peel strength of the 24 mm square mesh member 20 with respect to the 24 mm square sheet member 10 is preferably 15000 mN / 20 mm or less, more preferably 7500 mN / 20 mm or less, and particularly 1500 mN / 20 mm or less. preferable. For example, 3M company sells it as “Fixed type”, 3M ^TM Multipore ^TM highly breathable water repellent sheet EX Stretch cotton cloth (light brown) 25 4733EP-25, and then remove the mesh member It is desirable that the peel strength is equal to or less than the case. The lower limit value of the peel strength is not particularly limited as long as the state where the mesh member 20 is adhered to the sheet member 10 is maintained. The lower limit value of the peel strength may be, for example, 20 mN / 20 mm or more, or 50 mN / 20 mm or more. For example, 3M company sells it as a “skin-friendly low-stimulation type”, which is equivalent to the case where a mesh member is pasted on 3M ^TM easy-to-peel silicone sheet nonwoven fabric (light blue) 19 2775EP-0 and then peeled off. Peel strength or higher is desirable. In this specification, “peel strength” means that a mesh member is sandwiched between a sheet member and release paper, and the mesh member is attached to the adhesive surface of the sheet member using a 2 kg roller, and 30 minutes after that The peeling force is defined as the adhesive strength when measured as a sheet peel test at a peeling angle of 180 ° and a peeling speed of 0.3 m / min after removing the release paper.

Also, the mesh member 20 is preferably an area of the mesh 21 is 4 mm ² or ^more, 4 to 40 mm 2, it is also 5 to 35 mm ^2, or 6 to 30 mm ² to be. When there are a plurality of meshes 21 having different areas, the average mesh area within a certain range (for example, a 20 mm × 20 mm square range) only needs to belong to the above-described range of values. Thus, by setting the mesh 21 of the mesh member 20 within the range of 4 to 40 mm ² , wounds are generated when the sheet member 10 is peeled from the skin while maintaining the adhesiveness of the sheet member 10. Can be effectively prevented. Moreover, it is preferable to employ | adopt the mesh member 20 as an opening degree is about 20 to 80%. The number of strands is preferably 5 to 100 strands per inch. In particular, 10 to 30 wires per inch are preferable in order to achieve both strength and adhesiveness. The number of strands may be changed vertically and horizontally.
Further, the shape of the mesh 21 of the mesh member 20 may be triangular, quadrangular, pentagonal, hexagonal, or other polygonal shapes. Further, the mesh member 20 may have a structure in which the mesh 21 spreads radially like a spider web. Further, the mesh shape of the mesh member 20 may be indefinite, such that the warp yarns constituting the mesh member 20 are arranged at equal intervals while the weft yarns are arranged at non-equal intervals. Further, the mesh member 20 may be a combination of these plural types of polygonal meshes 21. The thickness of the mesh member 20 is not particularly limited, but is preferably 0.01 mm to 1.0 mm. In order not to leave a mark on the skin, the thickness of the mesh member 20 is preferably 0.01 mm to 0.3 mm. In particular, when the strength is also maintained, the thickness is desirably 0.08 mm to 0.2 mm.

  In the present invention, the expansion / contraction rate of the mesh member 20 is preferably lower than the expansion / contraction rate of the sheet member 10 described above. For example, the expansion / contraction rate of the mesh member 20 is in the range of 100 to 200%, and is preferably lower than the expansion / contraction rate of the sheet member 10. For example, when the expansion / contraction rate of the mesh member 20 is 100%, the expansion / contraction rate of the sheet member 10 is preferably 110 to 300% or 150 to 250%. Thus, by making the expansion / contraction rate of the mesh member 20 lower than that of the sheet member 10, the sheet member 10 can be easily peeled from the mesh member 20.

  Further, the mesh member 20 may have different stretch ratios and strengths in the vertical direction (constant direction) and in the horizontal direction (direction orthogonal to the constant direction). That is, the mesh member 20 may have a network structure having anisotropy. For example, the mesh member 20 can have anisotropy by making the thickness and material of the warp and weft constituting the mesh member 20 different or by making the mesh 21 anisotropic. Depending on the application of the adhesive sheet, the direction in which the mesh member 20 is peeled from the sheet member 10 may be determined. In this case, when the sheet member 10 is pulled from a certain direction by using the mesh member 20 having anisotropy, the sheet member 10 is easily peeled off from the mesh member 20, and when the sheet member 10 is pulled from a direction orthogonal thereto. It is possible to set a direction in which the sheet member 10 can be easily peeled according to the use of the pressure-sensitive adhesive sheet such that the sheet member 10 is difficult to peel from the mesh member 20.

Moreover, it is preferable that the mesh member 20 is formed with a hard-to-adhere material. Difficult-to-stick materials are characterized by low polarity and low surface energy. Specifically, the mesh member 20 is preferably formed of a material (hardly adhesive material) having a surface energy of 50 dyn / cm ² or less. If the sheet member 10 can be temporarily bonded to the mesh member 20, the lower limit of the surface energy of the material forming the mesh member 20 is not particularly limited. For example, the surface energy is 1 dyn / cm ² or more or 5 dyn / cm ² or more. Preferably there is. Examples of the difficult-to-adhere materials include fluorine resin materials and silicone resin materials. For example, the hard-to-adhere material constituting the mesh member 20 is selected from polyethylene (PE), polypropylene (PP), polyurethane, silicone rubber, polyacetal, and fluororesin (polytetrafluoroethylene, trade name Teflon (registered trademark), etc.). be able to. In this way, by forming the mesh member 20 from a hardly tacky material, the sheet member 10 can be easily peeled from the mesh member 20 while maintaining the adhesive force of the sheet member 10 to the skin.

The strength (peeling strength) when the pressure-sensitive adhesive sheet 100 of the present invention including the mesh member 20 and the sheet member 10 described above is peeled off by being attached to the skin is desirably the same as that of an existing pressure-sensitive adhesive sheet. For example, the same strength as when 3M ^TM Multipore ^TM highly breathable water-repellent sheet EX stretch cotton cloth (light brown) 25 4733EP-25 is attached to the skin and peeled off, as 3M company sells as “Fixed Fixed Type”. Or it is desirable that it is less. More desirably, it is equivalent to the case where 3M ^TM sells as a “skin-friendly hypoallergenic type” 3M ^TM easy-to-peel silicone sheet non-woven fabric (light blue) 19 2775EP-0, and a mesh member is applied to the skin and then peeled off. It should be strength or higher. The strength of the pressure-sensitive adhesive sheet of the present invention is 24 mm according to the present invention as a strength when measured in part according to JIS Z 0237 (2009) “Test method for pressure-sensitive adhesive sheet / pressure-sensitive adhesive sheet (10.4 measurement of peel strength)”. The strength when the four-sided adhesive sheet is affixed to a 24 mm square SUS304 steel plate “surface finish BA (after cold rolling, bright heat treatment / surface roughness specified in JISB0601)” is 15000 mN / 20 mm or less. Is preferably 7500 mN / 20 mm or less, and particularly preferably 1500 mN / 20 mm or less. The lower limit value of the peel strength of the pressure-sensitive adhesive sheet 100 may be, for example, 20 mN / 20 mm or more, or 50 mN / 20 mm or more.

  Further, the peeling force for peeling the sheet member 10 from the mesh member 20 is “α”, and the peeling strength for peeling the entire adhesive sheet 100 from the object (that is, the sheet member 10 and the mesh member 20 are simultaneously removed from the object). When the peel strength is “β”, the peel force α is preferably less than the peel strength β (α <β). For example, two test pieces of 24 mm square adhesive sheet 100 are prepared, and the whole test piece is attached to the SUS304 steel plate using a 2 kg roller and left for 30 minutes. Then, according to JIS Z 0237 (2009) “Adhesive sheet / adhesive sheet test method (10.4 peeling adhesive strength measurement)”, the sheet member 10 was peeled from the mesh member 20 for one test piece, and the other test About a piece, the adhesive sheet 100 whole is peeled from a steel plate. At that time, if the force (peeling force α) required to peel the sheet member 10 from the mesh member 20 is smaller than the force (peeling strength β) necessary to peel the entire adhesive sheet 100 from the steel plate, It is assumed that “α <β”.

  FIG. 6 shows an example of how to use the adhesive sheet 100. As shown in FIG. 6, with the mesh member 20 attached to the adhesive surface of the sheet member 10, the adhesive sheet 100 is attached to the skin of the subject patient. At that time, the electrode 200 is positioned so as to overlap the opening 30 of the sheet member 10, and the electrode 200 is sandwiched and fixed between the mesh member 20 and the patient's skin. And when removing the adhesive sheet 100 from the skin surface, the sheet | seat member 10 is peeled from the mesh member 20 first. At this time, for example, the sheet member 10 may be pulled with the other hand while pressing the electrode 200 and the mesh member 20 from above through the opening 30 of the sheet member 10 with one hand. As a result, the sheet member 10 can be peeled from the skin without damaging the patient's skin or pulling the hair growing on the skin surface to the adhesive surface of the sheet member 10 while fixing the position of the electrode 200. . Since the mesh member 20 itself does not have adhesive force, the mesh member 20 can be easily removed after the sheet member 10 is removed. For this reason, while maintaining the adhesive force of the sheet member 10 with respect to the skin, the sheet member 10 can be easily peeled off, and the skin can be prevented from being damaged when the sheet member 10 is peeled off. Moreover, since the hair on the skin surface is suppressed by the mesh member 20, the hair can be prevented from being caught in the sheet member 10, so that the sheet member 10 can be peeled off with almost no pain.

  Moreover, when the adhesive strength of the adhesive layer 12 is insufficient, a medical adhesive or adhesive can be further applied to the surface of the adhesive sheet 100 (that is, on the mesh member 20). The pressure-sensitive adhesive used here is viscous and can be bonded again. On the other hand, the adhesive is solidified when it is exposed to air and fixes an object. As the medical pressure-sensitive adhesive and adhesive, generally available ones can be appropriately employed. A medical pressure-sensitive adhesive or adhesive may be applied in advance to the surface of the pressure-sensitive adhesive sheet 100 (that is, on the mesh member 20), but may be applied when the pressure-sensitive adhesive sheet 100 is attached to the skin. In the former case, the adhesive sheet may be stored in a sealed container or bag to prevent drying. As such a bag, a well-known bag storing a patch such as a patch can be used. Moreover, the bag which match | combined the plastic film and metal foil with the multilayer can be used.

  Next, another embodiment of the present invention will be described with reference to FIGS. In the embodiment described below, the description of the same configuration as that of the above-described first embodiment will be omitted, and the description will be focused on a configuration different from that of the first embodiment.

[Second Embodiment]
7 and 8 show an article with an adhesive sheet according to the second embodiment. As shown in FIGS. 7 and 8, the second embodiment is mainly in that an electrode 200 (article) is interposed between the sheet member 10 and the mesh member 20 constituting the adhesive sheet 100. Different from the first embodiment described above. It is also possible to sandwich the electrode 200 between the sheet member 10 and the mesh member 20 as in the second embodiment. In this case, the electrode 200 contacts the patient's skin through the mesh 21 of the mesh member 20.

  When the electrode 200 is interposed between the sheet member 10 and the mesh member 20, the size of the main opening 31 of the sheet member 10 is smaller than the main body 210 of the electrode 200. That is, when the main body 210 of the electrode 200 is aligned with the main opening 31 of the sheet member 10, the adhesive layer 12 of the sheet member 10 partially adheres to the main body 210. As a result, the body portion 210 of the electrode 200 is sandwiched between the sheet member 10 and the mesh member 20 and fixed. In this manner, a structure in which the electrode 200 is embedded in the sheet member 10 may be employed.

  Although not shown, when the electrode 200 is interposed between the sheet member 10 and the mesh member 20 as in the second embodiment, the mesh member is arranged so that the electrode 200 can easily adhere to the patient's skin. A hole may be partially formed in the mesh member 20 at a portion where the electrode 20 and the electrode 200 overlap. Further, the hole of the mesh member 20 and the main opening 31 of the sheet member 10 are preferably overlapped in the thickness direction. Further, when the hole is formed in the mesh member 20, the size of the hole is preferably the same as or smaller than the main opening 31 of the sheet member 10. Specifically, the holes of the mesh member 20 are preferably sized to fit within the range of the main opening 31 of the sheet member 10 in plan view.

[Third Embodiment]
9 and 10 show an article with an adhesive sheet according to the third embodiment. The third embodiment is different from the above-described first embodiment mainly in that a water shielding sheet 40 for protecting the electrode 200 (article) from a liquid is further provided. Further, the third embodiment is that the opening 30 of the sheet member 10 is formed in a relatively narrow linear shape in order to suppress liquid intrusion from the upper surface side (sheet member 10 side). This is different from the first embodiment.

  As shown in FIG. 9, the water shielding sheet 40 is provided so as to cover the main body 210 of the electrode 200. In the structure shown in FIG. 9, the water shielding sheet 40 is interposed between the mesh member 20 and the electrode 200. That is, the sheet member 10, the mesh member 20, the water-impervious sheet 40, and the electrode 200 are laminated in order from the upper layer. A cross section of the structure of FIG. 9 is shown in FIG. A known liquid-impermeable sheet member can be used as the water-impervious sheet 40. For example, the water-impervious sheet 40 can be formed of a resin-made sheet mainly composed of polyethylene, polyester, polyvinyl alcohol, polypropylene, nylon, cellophane, vinylon, vinyl chloride, or the like. Moreover, what is necessary is just to employ | adopt the size of the water shielding sheet 40 which covers the main-body part 210 of the electrode 200 whole.

  The position where the water shielding sheet 40 is disposed is not limited to that described above, and the water shielding sheet 40 can be disposed in various modes as long as it is above the electrode 200. The example of the layer structure of the articles | goods with an adhesive sheet containing the water-impervious sheet 40 is shown to FIG. In FIG. 10A, as described above, the sheet member 10, the mesh member 20, the water shielding sheet 40, and the electrode 200 are laminated in order from the upper layer. In FIG. 10B, the sheet member 10, the water shielding sheet 40, the mesh member 20, and the electrode 200 are laminated in order from the upper layer, and the water shielding sheet 40 is interposed between the sheet member 10 and the mesh member 20. It has become. In FIG. 10C, the sheet member 10, the water shielding sheet 40, the electrode 200, and the mesh member 20 are laminated in order from the upper layer, and the water shielding sheet 40 and the electrode 200 are interposed between the sheet member 10 and the mesh member 20. It has an intervening structure. In FIG. 10D, the water shielding sheet 40, the sheet member 10, the mesh member 20, and the electrode 200 are laminated in order from the upper layer, and the water shielding sheet 40 is attached to the upper surface of the sheet member 10. ing. In FIG. 10 (e), the water shielding sheet 40, the sheet member 10, the electrode 200, and the mesh member 20 are laminated in order from the upper layer, and the electrode 200 is interposed between the sheet member 10 and the mesh member 20, The sheet 40 is attached to the upper surface of the sheet member 10. A known adhesive may be used for adhering the water shielding sheet 40.

[Fourth Embodiment]
FIG.11 and FIG.12 has shown the adhesive sheet which concerns on 4th Embodiment. The fourth embodiment is different from the first embodiment described above in that a release layer 50 for facilitating separation of the sheet member 10 from the mesh member 20 is provided.

  As shown in FIGS. 11 and 12, the pressure-sensitive adhesive sheet 100 may further include a release layer 50 between the sheet member 10 and the mesh member 20. The release layer 50 is provided for the purpose of easily peeling the sheet member 10 from the mesh member 20. Since the adhesive sheet 100 is assumed to be used as a medical sheet as an example, the release layer 50 is formed of a powder-like material used in medical applications such as baby powder. It is preferable. However, the release layer 50 is not limited to this, and may be formed, for example, by coating the surface of the mesh member 20 with a known release agent (water repellent spray or the like). That is, the release layer 50 may be a layer formed of a property of dropping from the mesh member 20 such as baby powder or talc, or a coating that applies a material having a small surface energy such as a water repellent spray. The layer formed by the property which does not fall off from the mesh member 20 like this may be sufficient.

  In addition, as shown in FIG. 12, the release layer 50 is provided only between the thread-like material, the fiber-like material, or the plastic formed in a lattice shape constituting the mesh member 20, and the adhesive surface of the sheet member 10. It does not exist in a portion corresponding to the mesh 21 of the mesh member 20. For this reason, even when the release layer 50 is interposed between them, the adhesive surface of the sheet member 10 adheres to the skin through the mesh 21 of the mesh member 20 as in the first embodiment, No release agent is interposed between the adhesive surface and the skin. Thereby, it becomes easy to peel the sheet member 10 from the mesh member 20 while maintaining the adhesive force of the sheet member 10. For example, before attaching the mesh member 20 to the adhesive surface of the sheet member 10, baby powder or the like is sprinkled on the mesh member 20 itself. Then, the surface of the mesh member 20 to which the baby powder is attached is attached to the adhesive surface of the sheet member 10. As a result, the release layer 50 is formed only between the thread-like or fiber-like material constituting the mesh member 20 or the plastic molded into a lattice shape and the adhesive surface of the sheet member 10.

[Fifth Embodiment]
FIG. 13 shows an article with an adhesive sheet according to the fifth embodiment. The fifth embodiment is mainly described in that the opening 30 is not formed in the sheet member 10 in advance, but the separation line 33 for forming the opening 30 is formed in the sheet member 10. This is different from the first embodiment.

  As shown in FIG. 13, a separation line 33 is formed in the sheet member 10 along the shape of the opening 30. For this reason, the opening 30 is formed in the sheet member 10 by cutting a part of the sheet member 10 along the separation line 33. The cut line 33 may be, for example, a perforation line (a line in which uncut parts and cut parts are alternately continued) or a slit line (a line made only of cut parts). As described above, the opening 30 need not be formed in the sheet member 10 in the initial state, and it is only necessary that the opening 30 can be formed by providing the separation line 33. In such a case, the user may cut off a part of the sheet member 10 along the cutting line 33 to form the opening 30, and then fix the electrode 200 to the patient's body using the adhesive sheet 100. . In addition, the user fixes the electrode to the patient's body using the adhesive sheet 100 before the opening 30 is formed, and when the adhesive sheet 100 is peeled off, a part of the sheet member 10 is cut off. It is good also as cutting out along 33 and forming the opening 30. FIG.

[Sixth Embodiment]
FIG. 14A shows an article with an adhesive sheet according to the sixth embodiment. The sixth embodiment is different from the first embodiment described above mainly in that the sheet member 10 is not divided by the opening 30. In the sixth embodiment, a main opening 31 and a sub-opening 32 are formed in the sheet member 10 one by one. Thus, it is also possible to form the openings 30 (31, 32) so that the sheet member 10 is not divided.

[Seventh Embodiment]
FIG. 14B shows an article with an adhesive sheet according to the seventh embodiment. The seventh embodiment is different from the above-described first embodiment mainly in that a perforation line 34 is formed in the sheet member 10 instead of the sub-opening 32. That is, a circular main opening 31 is formed near the center of the sheet member 10, and a linear perforation line 34 is formed from the main opening 31 to the edge of the sheet member 10. The perforation line 34 can be replaced with a slit line.

[Eighth Embodiment]
FIG. 15A shows an article with an adhesive sheet according to the eighth embodiment. The eighth embodiment is different from the first embodiment described above mainly in that the sheet member 10 is formed in a spiral shape. In the present embodiment, the sheet member 10 is formed into a rectangular spiral shape in accordance with the shape of the mesh member 20. Further, in the case of such a spiral sheet member 10, a gap formed between the edges of the sheet member 10 can be regarded as the opening 30.

[Ninth Embodiment]
FIG. 15B shows an article with an adhesive sheet according to the ninth embodiment. The ninth embodiment is different from the first embodiment described above in that the second opening 35 is formed at a position apart from the main opening 31. That is, the main opening 31 and the second opening 35 are not connected, and there is a predetermined interval between them. In the present embodiment, the perforation line 34 is formed so as to connect the main opening 31 and the second opening 35. A perforation line 34 is also formed between the main opening 31 and the edge of the sheet member 10. These perforation lines 34 can be replaced with slit lines. As described above, the sheet member 10 may be provided with the second opening 35 in addition to the main opening 31 for positioning the main body 220 of the electrode 200. A part of the sheet member 10 may be connected to an article (electrode). Since the article is thicker or uneven than the sheet member 10, it is easy to pinch. As a result, the article is easier to peel off from the mesh member 20 than the sheet member 10. When the sheet member 10 and the article are connected, the sheet member 10 can be peeled off from the mesh following the article, so that the sheet member 10 can be easily peeled off from the mesh.

[Tenth embodiment]
FIG. 16 shows an article with an adhesive sheet according to the tenth embodiment. The tenth embodiment differs from the first embodiment mainly in that an incision tape 60 for tearing a part of the sheet member 10 is provided in the adhesive sheet 100. In the tenth embodiment, a sub-opening, a perforation line, and a slit line connected to the main opening 31 of the sheet member 10 are not provided, and an incision tape 60 is attached to the sheet member 10 instead.

  The incision tape 60 can be a string, a thread, or a band. The cutting tape 60 is attached to the sheet member 10 such that one end extends from the edge of the sheet member 10 and the other end reaches the main opening 31 of the sheet member 10. For this reason, a part of the sheet member 10 can be broken along the incision tape 60 by gripping one end of the incision tape 60 and pulling it upward. The position at which the incision tape 60 is provided is not particularly limited, but is preferably disposed between the sheet member 10 and the mesh member 20 as shown in FIG.

[Eleventh embodiment]
FIG. 17 shows an article with an adhesive sheet according to the eleventh embodiment. The eleventh embodiment is different from the first embodiment mainly in that a hardly deformable portion 22 that is hard to be deformed compared to other portions is locally formed on the mesh member 20. In the eleventh embodiment, the hardly deformable portion 22 is locally formed on the mesh member 20 at a position overlapping the opening 30 of the sheet member 10, particularly the sub-opening 32. For example, as shown in FIG. 17, the hardly deformable portion 22 can be formed by partially making the mesh 21 of the mesh member 22 smaller than other portions. In addition, it is possible to form the hardly deformable portion 22 in the mesh member 20 by making the thickness and material of the thread material constituting the mesh member 20 or the shape of the mesh 21 different from other parts. In the embodiment as shown in FIG. 17, the sheet member 10 and the mesh member 20 are often peeled from the portion of the electrode 200 that holds the cable 220 first. For this reason, it becomes easy to peel the sheet | seat member 10 from this hard deformation part 22 vicinity by providing the hard deformation part 22 in the mesh member 20 in the part assumed to peel beforehand. Thus, when a cable for transmitting an electric signal or electric power, a tube through which liquid or gas passes through itself, or a cutting tape is arranged, the mesh member is easily peeled from the sheet member.

[Twelfth embodiment]
FIG. 18 shows an article with an adhesive sheet according to the twelfth embodiment. The twelfth embodiment is different from the first embodiment mainly in that an extension 23 is formed in the mesh member 20 instead of the opening 30 of the sheet member 10. That is, in the twelfth embodiment, the mesh member 20 has an extending portion 23 that extends from the edge of the sheet member 10. The mesh member 20 preferably basically covers the entire adhesive surface of the sheet member 10, and the mesh member 20 has an extended portion 22 that protrudes beyond the adhesive surface of the sheet member 10. The extending portion 22 of the mesh member 20 only needs to extend at least partially from the edge of the sheet member 10, but may extend from the entire periphery of the edge of the sheet member 10, for example. The extension length of the extension part 22 is preferably 1 mm or more, and may be, for example, 1 to 20 mm or 2 to 15 mm. As shown in FIG. 18, if the mesh member 20 extends at least partially from the sheet member 10, the sheet member 10 can be easily peeled from the mesh member 20 by pressing the extension portion 22 with a finger. it can. Although illustration is omitted, it is possible to provide the mesh member 20 with the extending portion 23 and to form the opening 30 described above in the sheet member 10.

Delnet KX215 (Delstar) was used as the mesh member and Opsite Gentle Roll (Smith and nephew) was used as the sheet member. As a result, the mesh member and the sheet member were peeled off satisfactorily, leaving no trace of the mesh on the skin.
Delnet KX215 from Delstar as a mesh member, and perm roll from Nitto Denko as a sheet member were applied to the skin for one day. As a result, the mesh member and the sheet member peeled off satisfactorily, leaving almost no trace of the mesh on the skin.
Delnet KX215 from Delstar as a mesh member and Tegaderm-film from 3M as a sheet member were affixed to the skin for one day. As a result, the mesh member and the sheet member peeled off satisfactorily, leaving almost no trace of the mesh on the skin.
Delnet KX215 from Delstar as a mesh member and Alcare Quickfix as a sheet member were applied to the skin for one day. As a result, the mesh member and the sheet member peeled off satisfactorily, leaving almost no trace of the mesh on the skin.

  As mentioned above, in this specification, in order to express the content of this invention, embodiment of this invention was described, referring drawings. However, the present invention is not limited to the above-described embodiments, but includes modifications and improvements obvious to those skilled in the art based on the matters described in the present specification.

  The present invention relates to an adhesive sheet used when, for example, a medical device is fixed to a patient's body. Therefore, the present invention can be suitably used in the medical device industry.

DESCRIPTION OF SYMBOLS 10 ... Sheet member 10a ... 1st sheet | seat part 10b ... 2nd sheet | seat part 11 ... Base material layer 12 ... Adhesive layer 20 ... Mesh member 21 ... Mesh | network 22 ... Hardly deformable part 23 ... Extension part 30 ... Opening 31 ... Main opening 32 ... Sub-opening 33 ... Separation line 34 ... Perforation line 35 ... Second opening 40 ... Water shielding sheet 50 ... Release layer 60 ... Incision tape 100 ... Adhesive sheet 200 ... Article (electrode)
210 ... Main body 220 ... Cable

Claims (11)

A sheet member having an adhesive surface;
A mesh member provided in a peelable manner on the adhesive surface of the sheet member,
The adhesive surface of the sheet member adheres to the object through the mesh of the mesh member,
The mesh member has a portion where the sheet member is not attached. The sheet member is provided with an opening or a separation line capable of forming the opening,
The pressure-sensitive adhesive sheet according to claim 1, wherein the mesh member is attached to the sheet member so as to cover the opening. The pressure-sensitive adhesive sheet according to claim 2, wherein the opening includes a main opening and a sub-opening that connects the main opening and an edge of the sheet member, a perforation line, or a slit line. The pressure-sensitive adhesive sheet according to claim 2, wherein the sheet member is divided into a plurality by the opening. Further comprising an incision tape between the sheet member and the mesh member;
The pressure-sensitive adhesive sheet according to claim 2, wherein the sheet member is torn along with the incision tape being pulled. The pressure-sensitive adhesive sheet according to claim 5, wherein the cutting tape is provided at a position reaching the opening from an edge of the sheet member. The pressure-sensitive adhesive sheet according to claim 1, wherein the mesh member has an extending portion that extends from an edge of the sheet member. The pressure-sensitive adhesive sheet according to claim 2,
An article with an adhesive sheet, comprising: an article provided at a position overlapping with the opening. The article with an adhesive sheet according to claim 8, wherein the article is provided on a lower layer side of the mesh member. The article with an adhesive sheet according to claim 8, wherein the article is interposed between the sheet member and the mesh member. The article with an adhesive sheet according to claim 8, wherein the article is used by being attached to a human body.

Images