JP3050241U - Patch - Google Patents

Abstract

(57) [Summary] [Problem] To obtain a patch which gives a good fit without sticking when applied to an affected or stretched affected part such as a throat, a wrist or an ankle. SOLUTION: An adhesive comprising an adhesive base material layer on all or a part of an elastic supporting member, wherein a plurality of concave notches are provided on a part of the periphery.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a patch. In particular, the present invention relates to a patch which is suitable for application to stretchable affected parts such as the throat, wrist and ankle, and soft affected parts.

[0002]

[Problems to be solved by the invention]

 An object of the present invention is to obtain a patch which gives a good fit without sticking when applied to a stretched or soft affected part such as a throat, a wrist or an ankle.

[0003]

[Means for Solving the Problems]

 The patch according to the invention described in claim 1 is a patch having a sticking substrate layer on all or a part of the elastic supporting member, and has a number of concave notches in a part of the periphery. It is a thing.

[0004] The patch according to the present invention described in claim 2 is a patch having a substantially rectangular shape provided with a sticking base material layer on all or a part of the elastic supporting member. It has a concave notch.

[0005] The patch according to the invention described in claim 3 is a patch having a substantially rectangular shape provided with a sticking substrate layer on all or a part of the elastic supporting member. Each has a number of concave notches.

[0006] The patch according to the present invention described in claim 4 is a substantially rectangular patch provided with an adhesive base material layer on all or a part of the elastic supporting member. Each has a saw-toothed shape with a number of V-shaped notches.

[0007] A patch according to the invention described in claim 5 is the patch according to any one of claims 1 to 4, wherein the bonding surface of the bonding substrate layer is bonded to a release liner. Is what is being held.

[0008]

[Embodiment of the invention]

 In the present invention, the patch is provided with a number of concave notches in a part of the periphery. For this reason, especially when applied to stretchable affected parts such as the throat, wrists and ankles, and soft affected parts, the notch opens and closes easily as the affected part expands and contracts, so there is no tension. In addition, since the notch is spread or narrowed according to the expansion and contraction of the affected part or the three-dimensional shape, there is no tension, and a good fit is obtained.

[0009] A large number of concave notches are attached to a stretched or soft affected part in a direction that does not hinder the stretching of the skin. In the case of a substantially rectangular patch, the longitudinal direction of the patch is often applied along the direction of expansion and contraction of the affected part, so that a number of concave notches are preferably provided on the longitudinal side, More preferably, it is provided on each of the opposed longitudinal sides.

[0010] Furthermore, when a notch is provided in the longitudinal side with a substantially rectangular patch, and when the patch is wound around a tapered affected part such as a wrist or an ankle, when the patch is attached to the affected part, the elastic support member Along with the stretching, the concave notches are narrowed and attached to each other at a small diameter portion, and the concave notches are spread and attached at a large diameter portion, so that a good fit is obtained.

[0011] Further, in order to stick the tape in a wound state, the entire shape of the patch may be a belt shape whose longitudinal direction is made larger. Further, the entire shape of the patch may be a substantially rectangular shape in which opposing sides in the longitudinal direction are curved in the same direction so that the patch is easily adhered to the tapered affected part.

The specific shape of the concave notch is such that the notch is spread or narrowed and adhered according to the three-dimensional shape of the affected part, and further expanded or narrowed so as not to hinder the expansion or contraction of the affected part or the soft affected part. You just have to relax. For example, various cutouts such as a cutout having an arc shape, an elliptical arc shape, and a square shape can be formed. Further, the patch of the present invention comprises a stretchable support member, and includes a linear notch, which is formed into a substantially V-shaped notch by sticking while extending.

The size of these cutouts can be appropriately selected depending on the thickness of the patch, the softness of the elastic supporting member, the degree of elasticity, and the like.

A preferred notch shape is a saw-tooth shape formed by a number of V-shaped notches on each of the opposed longitudinal sides. This is because the elastic support member remains tapered due to the adjacent V-shaped notch. For this reason, it is difficult for the affected part to be peeled off due to expansion and contraction of the affected part or the like, and a good adhered state can be obtained.

The adhesive substrate of the patch of the present invention may or may not contain a drug. When a drug is not contained, a laminate of the elastic supporting member and the adhesive substrate is arranged so as to surround the drug layer.

The patch of the present invention can be easily produced by a die roll cutting method. For example, in the case of a patch containing a drug in the sticking substrate, the sticking substrate is applied in a uniform thickness on a strip-shaped release liner that is sequentially fed, and the strip-shaped elastic support member is moved from above in the transport direction. After covering along, by punching and cutting the laminated body of the elastic support member, the adhesive base material and the release liner to be conveyed, using a punching die with a number of concave notches in a part of the periphery, A patch having the sticking surface of the sticking substrate layer stuck to and held by the release liner can be easily manufactured.

When the release liner is cut at the same time as the die cutting, a patch having the same shape as the elastic support member, the adhesive substrate, and the release liner is obtained. Also, by leaving the release liner uncut and removing the extra burr around the laminate of the die-cut stretchable support member and the adhesive substrate, the release liner is cut between the burr parts. Further, it is possible to obtain an easily peelable patch having a laminate of the elastic support member and the sticking substrate placed on a part of the surface of the release liner.

In the case of a patch containing no drug in the adhesive base material, a drug layer is sequentially formed in a predetermined shape on a strip-shaped release liner which is sequentially fed, and the adhesive base material is laminated on the adhesive layer from above. After covering the stretchable support member along the transport direction, a laminate of the stretchable support member, the adhesive base material, and the release liner that is transported by a punching die having a number of concave cutouts in a part of the periphery. By punching out and cutting at a position where the drug layer is substantially at the center, a patch having the sticking surface of the sticking substrate layer stuck to and held by the release liner can be easily manufactured.

[0019]

【Example】

 FIG. 1 is an explanatory view showing the configuration of an embodiment of the patch of the present invention. FIG. 1A is a plan view, and FIG. 1B is a partially enlarged cross-sectional view. As shown in the drawing, in the patch 10, a drug layer 15 is placed at a substantially central position on a substantially rectangular release liner 11. An elastic support member 13 having the same shape as the release liner 11 and having an adhesive substrate 12 formed on the lower surface is placed so as to cover the drug layer 15. The laminate of the release liner 11, the pressure-sensitive adhesive substrate 12, and the elastic supporting member 13 has a number of V-shaped notches 14 on opposing longitudinal sides.

FIG. 2 is an explanatory view showing the configuration of another embodiment of the patch of the present invention. FIG. 2A is a plan view, and FIG. 2B is a partially enlarged sectional view. As shown in the figure, in this patch 20, a band-like laminate 25 of a patch-containing base material 22 containing a drug and a stretchable support member 23 having the same shape as the patch-substrate 22 is provided at a substantially central position on a strip-shaped release liner 21. It is placed. This band-shaped laminate 25 has a large number of V-shaped cutouts 24 on opposing longitudinal sides.

FIG. 3 is a plan view showing the configuration of still another embodiment of the patch of the present invention. As shown in the figure, in the adhesive 30, a laminate of an adhesive substrate 32 containing a drug and a stretchable support member 33 having the same shape as the adhesive so as not to protrude onto the rectangular release liner 31. 35 is placed. The laminated body 35 has opposite long sides curved in the same direction, has a substantially fan shape, and has a large number of semicircular cutouts 34 on the opposed long sides.

As described above, each of the patches 10, 20, and 30 shown in FIGS. 1, 2 and 3 is applied in a state of being wound around a tapered affected part such as a wrist or an ankle. In accordance with the expansion and contraction of the elastic supporting members 13, 23, 33, the concave notches 14, 24, 34 are narrowed and attached to each other at the small diameter portion, and the concave notches 14, 24, 34 at the large diameter portion. Is spread and adhered, so that a good fit is obtained.

As the specific shape of the notch, the notch is spread or narrowed and adhered according to the three-dimensional shape of the affected part, and is further expanded or narrowed so as not to hinder the expansion or contraction of the stretched or soft affected part. Therefore, notches having various shapes can be selected.

More specifically, FIG. 4 is an explanatory view showing a specific example of the cutout shape of the patch of the present invention. As shown in the figure, a V-shape as shown in Fig. A, a semi-ellipse as shown in Fig. B, a square shape as shown in Fig. C, an arc as shown in Fig. D, a linear shape as shown in Fig. E, etc. Selected.

[0025]

[Effect of the invention]

 As described above, the present invention has the effect of obtaining a patch that gives a good fit without sticking when applied to stretchable affected parts such as the throat, wrist, and ankle, and soft affected parts. There is.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing the configuration of an embodiment of the patch of the present invention. FIG. 1A is a plan view, and FIG. 1B is a partially enlarged sectional view.

FIG. 2 is an explanatory view showing the configuration of another embodiment of the patch of the present invention, wherein FIG. 2A is a plan view and FIG. 2B is a partially enlarged sectional view.

FIG. 3 is a plan view showing the configuration of still another embodiment of the patch of the present invention.

FIG. 4 is an explanatory view showing a specific example of a cutout shape of the patch of the present invention.

[Explanation of symbols]

 10, 20, 30 ... patch, 11, 21, 31 ... release liner, 12, 22, 32 ... sticking substrate, 13, 23, 33 ... elastic support member, 14, 24, 34 ... notch, 15 ... Drug layer, 25, 35 ... laminate,

Claims (5)

[Utility model registration claims] 1. An adhesive patch comprising an adhesive substrate layer on all or a part of an elastic support member, wherein the adhesive has a number of concave cutouts in a part of the periphery. 2. A patch having a substantially rectangular patch having a sticking substrate layer on all or a part of an elastic supporting member, wherein the patch has a number of concave notches on a longitudinal side thereof. . 3. A substantially rectangular patch having a sticking substrate layer on all or a part of an elastic support member, wherein a plurality of concave notches are provided on each of opposing longitudinal sides. Patch. 4. A substantially rectangular patch having a sticking substrate layer on all or a part of an elastic supporting member, wherein a plurality of V-shaped notches are formed on each of opposed long sides to form a saw blade. A patch characterized by exhibiting: 5. The adhesive patch according to claim 1, wherein the adhesive surface of the adhesive substrate layer is attached to and held by a release liner.