Transdermal patch easy to tear

Abstract

The transdermal patch easy to tear comprises a backing layer, a patch mechanism is fixedly installed at the lower end of the backing layer, and an anti-sticking layer is fixedly installed at the lower end of the patch mechanism; a hanging ring is fixedly mounted at the left part of the rear end of the backing layer; the patch mechanism comprises a controlled release film, a medicament layer is fixedly mounted at the lower end of the controlled release film, and a pressure-sensitive adhesive is fixedly mounted at the lower end of the medicament layer; a plurality of tearing pieces are fixedly mounted at the front end and the rear end of the anti-sticking layer. According to the easy-to-tear transdermal patch disclosed by the utility model, the anti-sticking layer is glassine paper, so that the easy-to-tear transdermal patch not only is fine and uniform in texture, very strong in light transmittance and strength, but also is compact in structure, and has the advantages of high smoothness, good grease resistance, low release agent consumption, suitability for die cutting and the like, the resistance of a device is improved, and the service life of the device is prolonged. And a plurality of semicircular tearing pieces are arranged at the two ends of the glassine paper, so that people can conveniently and quickly tear down the glassine paper, and the patch is convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of transdermal patch technology, and in particular to an easy-to-tear transdermal patch. Background Technology

[0002] Transdermal patches are a non-invasive drug delivery system that slowly and continuously releases medication into the body through the skin to achieve therapeutic effects. This not only avoids the gastrointestinal discomfort that oral medications may cause and reduces the first-pass effect of the liver, but also provides a long-lasting drug effect and maintains a constant blood drug concentration. This means that the drug can continue to work for a period of time, reducing the need for frequent dosing and improving patient compliance.

[0003] However, existing transdermal patches have a thin film on the adhesive layer before use, but this film is tightly attached to the adhesive layer and is difficult for people to peel off quickly and effectively, making the use of transdermal patches inconvenient. Utility Model Content

[0004] The main objective of this invention is to provide an easy-to-tear transdermal patch that can effectively solve the problems in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] An easy-tear transdermal patch includes a backing layer, an application mechanism fixedly installed at the lower end of the backing layer, and an anti-adhesion layer fixedly installed at the lower end of the application mechanism; a hanging ring fixedly installed at the left rear end of the backing layer; the application mechanism includes a controlled-release membrane, a drug layer fixedly installed at the lower end of the controlled-release membrane, and a pressure-sensitive adhesive fixedly installed at the lower end of the drug layer; and several tear-off tabs fixedly installed at both the front and rear ends of the anti-adhesion layer.

[0007] Preferably, the hanging loop is circular in shape and is an integral part of the backing layer. The backing layer is made of polyester film, or PET film for short. Its strength and toughness are the best among all thermoplastics. Its tensile strength and impact strength are much higher than those of ordinary films. It has good stiffness, dimensional stability, puncture resistance, abrasion resistance, and high rigidity, hardness, and toughness, preventing the patch from being easily damaged by scratches from sharp objects. At the same time, the hanging loop on it makes it easy for people to string together multiple patches for carrying.

[0008] Preferably, the tear-off tab is semi-circular in shape, and the tear-off tab and the anti-adhesive layer are integrated into one piece. The anti-adhesive layer is glassine paper, also known as translucent cellophane, which is a special paper with good internal strength and transparency, made from glassine base paper through supercalendering. It is not only fine and uniform in texture, but also has strong light transmittance and strength, which not only improves the resistance of the device, but also has several semi-circular tear-off tabs at both ends, which can make it easy for people to quickly tear off the glassine paper and facilitate the use of the adhesive.

[0009] Preferably, the backing layer is a polyester film with a thickness of 50 μm.

[0010] Preferably, the anti-stick layer is glassine paper with a thickness of 80 μm.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The release layer is glassine paper, also known as translucent glassine paper. It is a special paper with good internal strength and transparency, which is made from glassine base paper through supercalendering. It is not only fine and uniform in texture, with strong light transmittance and strength, but also has a compact structure. It has advantages such as high smoothness, good grease resistance, low release agent consumption, and suitability for die cutting. At the same time, its biggest advantage is high temperature resistance. It can be used for film application or cutting in many special environments. It can be used normally in high temperature environments and is not easy to melt. This not only improves the resistance of the device, but also provides several semi-circular tear tabs at both ends of the glassine paper, which can make it easy for people to quickly tear off the glassine paper and facilitate the use of the adhesive.

[0013] 2. The backing layer is made of polyester film, or PET film for short. Its strength and toughness are the best among all thermoplastic plastics. Its tensile strength and impact strength are much higher than those of ordinary films. It has good stiffness, dimensional stability, puncture resistance, abrasion resistance, high rigidity, hardness and toughness, which prevents the patch from being easily damaged by external sharp objects. At the same time, the hanging loop on it makes it easy for people to string together multiple patches for carrying.

[0014] 3. The pressure-sensitive adhesive on the patch is a special type of adhesive that can quickly form adhesion to the object under slight pressure without heating or solvent activation. It has good adhesion, cohesion, peel resistance, temperature resistance, flame retardancy, and aging resistance, and is therefore widely used in medical dressings. The pressure-sensitive adhesive allows the patch to be applied well to the affected area, and the drug in the drug layer is evenly dispersed in the pressure-sensitive adhesive. In addition, the controlled-release membrane is a chitosan-based composite controlled-release membrane. Chitosan is a product of chitin through chemical deacetylation, which has good biocompatibility, biodegradability, and advantages such as antibacterial, hemostatic, wound healing promotion, and low toxicity, allowing the drug layer to be released better. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of an easy-to-tear transdermal patch according to this utility model;

[0016] Figure 2 This is a schematic diagram of the overall structure of the backing layer of an easy-to-tear transdermal patch according to this utility model.

[0017] Figure 3 This is a schematic diagram of the overall structure of the patching mechanism of an easy-tear transdermal patch according to this utility model;

[0018] Figure 4 This is a schematic diagram of the overall structure of the anti-adhesive layer of an easy-to-tear transdermal patch according to this utility model.

[0019] In the diagram: 1. Backing layer; 2. Adhesive patch; 3. Anti-adhesive layer; 10. Hanging loop; 20. Controlled-release membrane; 21. Drug layer; 22. Pressure-sensitive adhesive; 30. Peel-off sheet. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" 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 a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] like Figures 1-4As shown, an easy-tear transdermal patch includes a backing layer 1, an application mechanism 2 fixedly installed at the lower end of the backing layer 1, and an anti-adhesion layer 3 fixedly installed at the lower end of the application mechanism 2; a hanging ring 10 is fixedly installed at the left rear end of the backing layer 1; the application mechanism 2 includes a controlled-release membrane 20, a drug layer 21 fixedly installed at the lower end of the controlled-release membrane 20, and a pressure-sensitive adhesive 22 fixedly installed at the lower end of the drug layer 21; and several tear-off tabs 30 are fixedly installed at both the front and rear ends of the anti-adhesion layer 3.

[0024] The hanging loop 10 is circular in shape and is an integral design with the backing layer 1. The backing layer 1 is a polyester film with a thickness of 50μm. The backing layer 1 is a polyester film, or PET film for short. Its strength and toughness are the best among all thermoplastics. Its tensile strength and impact strength are much higher than those of ordinary films. It has good stiffness, dimensional stability, puncture resistance, abrasion resistance, and high rigidity, hardness and toughness, which prevents the patch from being easily damaged by scratches from sharp objects. At the same time, the hanging loop 10 on it also makes it easy for people to string together multiple patches for carrying.

[0025] The tear-off tab 30 is semi-circular in shape and is an integral part of the anti-adhesive layer 3. The anti-adhesive layer 3 is glassine paper with a thickness of 80μm. The anti-adhesive layer 3 is glassine paper, also known as translucent cellophane, which is a special paper with good internal strength and transparency, made from glassine base paper through supercalendering. It is not only fine and uniform in texture, but also has strong light transmittance and strength, which not only improves the resistance of the device, but also has several semi-circular tear-off tabs 30 at both ends, which can make it easy for people to quickly tear off the glassine paper and facilitate the use of the adhesive.

[0026] It should be noted that this utility model is an easy-tear transdermal patch. The pressure-sensitive adhesive 22 on the patch mechanism 2 is a special adhesive that can quickly form adhesion to the object under slight pressure without heating or solvent activation. It has good adhesion, cohesion, peel resistance, temperature resistance, flame retardancy, and aging resistance, and is therefore widely used in medical dressings. The pressure-sensitive adhesive 22 allows the patch to be applied well to the affected area, and the drug in the drug layer 21 is evenly dispersed in the pressure-sensitive adhesive 22. In addition, the controlled-release membrane 20 is a chitosan-based composite controlled-release membrane. Chitosan is a product of chitin through chemical deacetylation and has good biocompatibility, biodegradability, and... The antibacterial, hemostatic, and wound-healing promoting properties, along with low toxicity, allow the drug layer 21 to release its contents more effectively. The backing layer 1 is made of polyester film, or PET film for short. Its strength and toughness are among the best of all thermoplastics. Its tensile strength and impact resistance are much higher than those of ordinary films. It has good stiffness, dimensional stability, puncture resistance, abrasion resistance, and high rigidity, hardness, and toughness, preventing the patch from being easily damaged by sharp objects. The hanging loop 10 on it also makes it easy for people to string together multiple patches for carrying. The anti-adhesive layer 3 is made of glassine paper, and both ends of the glassine paper are provided with several semi-circular tear strips 30, which make it easy for people to quickly tear off the glassine paper for easy use of the patch.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A frangible transdermal patch comprising a backing layer (1), characterised in that: The lower end of the backing layer (1) is fixedly installed with a patch mechanism (2), and the lower end of the patch mechanism (2) is fixedly installed with a release layer (3); the left part of the rear end of the backing layer (1) is fixedly installed with a hanging ring (10); the patch mechanism (2) comprises a controlled-release film (20), the lower end of the controlled-release film (20) is fixedly installed with a medicament layer (21), and the lower end of the medicament layer (21) is fixedly installed with pressure-sensitive adhesive (22); the front end and the rear end of the release layer (3) are both fixedly installed with a plurality of tear-off tabs (30).

2. A transdermal patch according to claim 1, wherein: The hanging ring (10) is in the shape of a circular ring, and the hanging ring (10) and the backing layer (1) are designed in an integrated manner.

3. The frangible transdermal patch of claim 1, wherein: The tear-off tab (30) is in the shape of a semicircle, and the tear-off tab (30) and the release layer (3) are designed in an integrated manner.

4. The easy-to-tear transdermal patch of claim 1, wherein: The backing layer (1) is a polyester film, and the thickness is 50μm.

5. The frangible transdermal patch of claim 1 wherein: The release layer (3) is a glassine paper, and the thickness is 80μm.

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