Medical application

Abstract

The utility model relates to the technical field of medical application, in particular to a medical application. The medical application comprises release paper, a skin-friendly layer, a first liquid absorption layer, a second liquid absorption layer and a bottom film layer which are sequentially arranged, a first liquid absorption groove is concavely formed in the face, facing the first liquid absorption layer, of the second liquid absorption layer. The medical application has the advantages of high utilization rate of medicine molecules, no liquid leakage and accurate dosage, and the comprehensive performance and effect of the medical application are obviously superior to those of gauze wet application.

Description

Technical Field

[0001] The utility model relates to the technical field of medical dressings, in particular to a medical dressing. Background Art

[0002] In the long history of Chinese civilization, traditional Chinese medicine is one of the indispensable treasures, mainly including five forms: "pills, pills, powders, ointments, and soups". Among them, plasters are a kind of external Chinese medicine, which was called thin stickers in ancient times. They are made of vegetable oil or animal oil and medicine into a gelatinous substance, which is applied to one side of cloth, paper or leather. It can be attached to the affected area for a long time and is mainly used to treat sores, boils, swelling and pain.

[0003] However, since there is no unified standard formula process and quality inspection method for plasters, plasters produced by some unregulated small factories have poor drug penetration and high allergy rates. There is no strict unified standard for the ingredients of plasters. The ingredients of various plasters are different, and the amount added is also added according to experience without strict standards.

[0004] In recent years, people have begun to turn their attention to wet compresses. Wet compress therapy refers to a method of treating diseases by applying gauze dipped in medicinal decoction to the affected area. This method has the effects of inhibiting exudation, astringing and relieving itching, reducing swelling and relieving pain, controlling infection, and promoting skin healing. This method can be formulated according to the condition, and the formulated medicine can be processed into medicinal powder or decoction.

[0005] However, after the gauze is immersed in the drug solution, the drug solution is easy to overflow from the gauze, thereby causing inaccurate dosage and contaminating the affected area and the clothes on the affected area.

[0006] Gutongling tincture is a Chinese patent medicine preparation, and its functions and indications are warming the meridians and dispelling cold, dispelling wind and activating blood circulation, unblocking collaterals and relieving pain. It is used for lumbar and cervical vertebrae hyperosteogeny, osteoarthritis, scapulohumeral periarthritis, and rheumatoid arthritis. Gutongling tincture is a tincture, which contains 45-55% ethanol, and its usage is external use, 10 ml at a time, once a day, soaking the liquid in a dressing band and applying it to the affected area for 30-60 minutes, and 20 days is a course of treatment. Similarly, Gutongling tincture has the above problems. Utility Model Content

[0007] The utility model aims to provide a medical dressing, which has the advantages of high utilization rate of drug molecules, no liquid leakage, accurate dosage, and its comprehensive performance and effect are obviously better than gauze wet compress.

[0008] In order to achieve the above purpose, the preferred solution adopted by the utility model is:

[0009] A medical dressing comprises release paper, a skin-friendly layer, a first liquid-absorbing layer, a second liquid-absorbing layer and a bottom film layer which are arranged in sequence; a first liquid-absorbing groove is concavely arranged on one side of the second liquid-absorbing layer facing the first liquid-absorbing layer.

[0010] Furthermore, in a preferred embodiment of the present invention, a second liquid absorption groove is concavely provided on a side of the second liquid absorption layer facing the first liquid absorption layer; and the second liquid absorption groove is arranged around the first liquid absorption groove.

[0011] Furthermore, in a preferred embodiment of the present invention, a plurality of liquid conducting grooves are concavely formed on one side of the second liquid absorbing layer facing the first liquid absorbing layer; the liquid conducting grooves are respectively connected and communicated with the first liquid absorbing grooves and the second liquid absorbing grooves.

[0012] Furthermore, in a preferred embodiment of the present invention, the first liquid suction groove is an annular groove.

[0013] Furthermore, in a preferred embodiment of the present invention, a first annular guide groove and a second guide groove are concavely formed on one side of the first liquid-absorbing layer facing the skin-friendly layer; and the second guide groove is arranged around the first guide groove.

[0014] Furthermore, in a preferred embodiment of the present invention, the first liquid suction groove is directly opposite to the first guide groove and overlaps with the first guide groove.

[0015] Furthermore, in a preferred embodiment of the present invention, the second liquid suction groove is directly opposite to the second guide groove and overlaps with the second guide groove.

[0016] Furthermore, in a preferred embodiment of the present invention, the first liquid-absorbent layer includes a needle-punched cotton layer; the second liquid-absorbent layer includes a water-absorbent cotton layer.

[0017] Furthermore, in a preferred embodiment of the present invention, the skin-friendly layer includes a hydrophilic non-woven fabric layer; and the bottom film layer includes a cast film layer.

[0018] The beneficial effects of a medical dressing provided by the utility model are:

[0019] The medical patch provided by the utility model comprises a release paper, a skin-friendly layer, a first liquid-absorbing layer, a second liquid-absorbing layer and a bottom film layer arranged in sequence. According to the structural design of each of the above-mentioned film layers, especially the structural design of the second liquid-absorbing layer, and the design of the connection mode between the layers, the obtained medical patch can achieve:

[0020] (1) The medical dressing adopts a double-layer liquid absorption layer design. Each liquid absorption layer is made of different materials and structures. When used together, the two can complement each other in absorbing liquid medicine, and can lock the liquid medicine in a limited area. During the wet compress process, the liquid medicine overflow rate is less than 0.5%, achieving precise drug delivery. The accuracy of drug delivery is increased to more than 99.5%, avoiding inaccurate dosage and contamination of clothing.

[0021] (2) After the medical patch was used for 60 minutes, the residual amount of artemisinin on the ethanol snow was detected to be 10-12%, indicating that the medical patch can significantly improve the bioavailability of wet compress treatment; the residual amount of ethanol was detected to be 65-70%, indicating that the medical patch can significantly reduce the irritation of ethanol to the skin after 60 minutes of wet compress treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 An exploded view of a medical dressing provided by an embodiment of the utility model;

[0024] Figure 2 A schematic cross-sectional view of a medical dressing provided by an embodiment of the utility model;

[0025] Icon: 10-medical patch, 100-release paper, 200-skin-friendly layer, 300-first liquid absorption layer, 400-second liquid absorption layer, 500-base film layer, 600-pre-torn release paper, 700-connecting tape, 110-R corner, 310-first guide groove, 320-second guide groove, 410-first liquid absorption groove, 420-second liquid absorption groove, 430-liquid guide groove. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0029] Example 1

[0030] The following is combined with Figure 1-2 The utility model is further described as follows:

[0031] The utility model provides a medical patch 10, see Figure 1-2 The medical patch 10 includes a release paper 100, a skin-friendly layer 200, a first liquid-absorbing layer 300, a second liquid-absorbing layer 400 and a bottom film layer 500. The skin-friendly layer 200, the first liquid-absorbing layer 300, the second liquid-absorbing layer 400 and the bottom film layer 500 are attached together in a fixed order by hot melt adhesive, and the above materials are attached more tightly by rolling the equipment. After rolling, the materials are cut into products by the cutting die of the equipment. The hot melt adhesive has good stickiness and no side effects, which can increase the patient's experience of use.

[0032] In this embodiment, the release paper 100 is 40-100 g / m 2 This specification can help the formed dressing have a certain stiffness, and is suitable for machine folding and pillow packaging.

[0033] The four corners of the release paper 100 are R angles 110 that are concave from outside to inside; the arc of the R angle 110 is 7°. This arc can better ensure that the Gutongling tincture does not overflow, and further eliminate the risk of inaccurate dosage and foreign body contamination of the affected area caused by the overflow of the Gutongling tincture.

[0034] In this embodiment, the bottom film layer 500 is made of cast film. Cast film is breathable, and solvents such as ethanol and water evaporate slowly, while preventing the drug solution from seeping out from the back. The bottom film layer 500 is provided with a connecting belt 700 for bonding with the release paper 100 around it, and the connecting belt 700 on one side of the bottom film layer 500 is bonded with a pre-torn release paper 600, and the pre-torn release paper 600 is arranged between the release paper 100 and the connecting belt 700. The pre-torn release paper 600 is used to facilitate the removal of the release paper 100 and prevent the hot melt adhesive between the connecting belt 700 and the release paper 100 from sticking to the hands.

[0035] In this embodiment, the material of the skin-friendly layer 200 is not specifically limited. In this embodiment, the skin-friendly layer 200 is made of hydrophilic non-woven fabric. 2 This material is conducive to the reverse penetration of drugs to the affected area during the wet compress process.

[0036] In this embodiment, the first liquid-absorbing layer 300 is made of needle-punched cotton. Further, the needle-punched cotton used is 260-380 g / m 2The needle-punched cotton layer provided by the present application includes long-staple absorbent cotton, fine-staple absorbent cotton, and polyethylene terephthalate that are intertwined. Specifically, it includes 5-15% long-staple absorbent cotton, 15-35% fine-staple absorbent cotton, and 50-80% polyethylene terephthalate. The material of this specification is conducive to fully absorbing and locking the Gutongling tincture liquid to prevent the Gutongling tincture from overflowing; ensuring that the product dosage is accurate and does not contaminate the affected area and the affected area's clothing. At the same time, the needle-punched cotton of this specification can lock ethanol, and the drug reversely penetrates from the leak-proof liquid dressing to the affected area during the wet compress.

[0037] In this embodiment, a first guide groove 310 and a second guide groove 320 are concavely arranged on one side of the first liquid-absorbing layer 300 facing the skin-friendly layer 200, and the second guide groove 320 is arranged around the first guide groove 310 to ensure that the Gutongling tincture does not spread to the surroundings and ensure the drug concentration of the local Gutongling tincture. The first guide groove 310 and the second guide groove 320 can delay the capillary phenomenon of the liquid medicine, and prevent the liquid medicine from seeping out of the application area during use and contaminating the clothes.

[0038] In the present embodiment, the second liquid-absorbing layer 400 includes a water-absorbing cotton layer, which is specifically made of a blend of polyester fiber and viscose fiber. In the present embodiment, the second liquid-absorbing layer 400 is concavely provided with a first liquid-absorbing groove 410, a second liquid-absorbing groove 420 and a plurality of liquid-conducting grooves 430 on one side facing the first liquid-absorbing layer 300. In the present embodiment, the second liquid-absorbing groove 420 is arranged around the first liquid-absorbing groove 410, and the liquid-conducting groove 430 is connected and communicated with the first liquid-absorbing groove 410 and the second liquid-absorbing groove 420 respectively. The first liquid-absorbing groove 410 is an annular groove. In the present embodiment, the first liquid-absorbing groove 410 is directly opposite to the first guide groove 310 and overlaps with the first guide groove 310, and the second liquid-absorbing groove 420 is directly opposite to the second guide groove 320 and overlaps with the second guide groove 320.

[0039] After the liquid medicine is locked in the first liquid absorption layer 300 by the first guide groove 310, part of the excess liquid medicine is blocked again by the second guide groove 320, and part of it flows into the second liquid absorption layer 400 and is locked by the first liquid absorption groove 410. If there is any excess liquid medicine, it is locked by the second liquid absorption groove 420 through the multiple liquid guide grooves 430, thereby preventing the liquid medicine from diffusing outward.

[0040] The medical patch 10 provided in this embodiment is used as follows: when using, first peel off the release paper 100, then pour the bone pain tincture into the skin-friendly layer 200, then peel off the pre-torn release paper 600, and then stick the leak-proof liquid patch on the affected area.

[0041] The application examples are as follows:

[0042] 10 subjects were selected, and 20 bags (10ml / bag) of Gutongling tincture with a content of 120ug / ml were used, 10 of which were immersed in 10 medical patches provided in this embodiment and applied to the right shoulders of the 10 subjects; the other 10 bags were poured into an appropriate amount of medical gauze and fixed to the left shoulders of the 10 subjects with tape. After 60 minutes of wet compress, the medical patches provided in this embodiment (Group A) and the medical gauze (Group B) after wet compress were removed respectively, and the 10 medical patches in Group A were cut into pieces of 1-2 square centimeters with scissors, and loaded into 10 500ML stoppered triangular bottles, and 250ml of 50% ethanol was added respectively, and ultrasonicated for 2 hours (power 250W, 33kHz), the ethanol was poured out, and the patches were squeezed until there was no dripping, combined, filtered, and transferred to 10 evaporating dishes in a water bath. Evaporate to dryness, add methanol to wash into 25 ml volumetric flasks, ultrasonically treat for 30 minutes (power 250 W, 33 kHz), cool, add methanol, filter, take the filtrate to determine the content of 10 group A samples (refer to the preparation of the artemisinin reference substance of the pharmacopoeia Gutongling tincture and the conditions of high performance liquid chromatography); determine the content of 10 group B samples under the same conditions, and calculate the average artemisinin residual rate of group A samples to be 11%, which is significantly better than the average residual rate of group B samples of 54%.

[0043] In summary, the medical dressing 10 provided in this embodiment has high utilization rate of drug molecules, no leakage, and accurate dosage, and its comprehensive performance and effect are significantly better than gauze wet compress.

[0044] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A medical dressing, characterized in that: It comprises a release paper, a skin-friendly layer, a first liquid-absorbing layer, a second liquid-absorbing layer and a bottom film layer arranged in sequence; a first liquid-absorbing groove, a second liquid-absorbing groove and a plurality of liquid-conducting grooves are concavely arranged on a side of the second liquid-absorbing layer facing the first liquid-absorbing layer; the second liquid-absorbing groove is arranged around the first liquid-absorbing groove, and the liquid-conducting groove is respectively connected and communicated with the first liquid-absorbing groove and the second liquid-absorbing groove; a first annular guide groove and a second guide groove are concavely arranged on a side of the first liquid-absorbing layer facing the skin-friendly layer; the second guide groove is arranged around the first guide groove; the first liquid-absorbing groove is opposite to the first guide groove and overlaps with the first guide groove; the second liquid-absorbing groove is opposite to the second guide groove and overlaps with the second guide groove.

2. The medical patch according to claim 1, characterized in that: The first liquid suction groove is an annular groove.

3. The medical patch according to claim 1, characterized in that: The first liquid-absorbing layer comprises a needle-punched cotton layer; the second liquid-absorbing layer comprises a water-absorbing cotton layer.

4. The medical patch according to claim 1, characterized in that: The skin-friendly layer comprises a hydrophilic nonwoven fabric layer; and the bottom film layer comprises a cast film layer.

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