A new type of medical tape

Abstract

This utility model discloses a novel medical tape. The key technical features include a roll and a tape body wound around the roll. The tape body, from top to bottom, comprises: a hydrophilic layer, an adhesive layer, a hydrophobic layer, and an adhesive layer. The hydrophilic layer is made of a small-pore hydrophilic fabric; the adhesive layer uses a water-based adhesive, with its top surface bonded to the bottom surface of the hydrophilic layer; the hydrophobic layer uses a hydrophobic fabric with water-guiding channels, its top surface connected to the hydrophilic layer via the adhesive layer, and the bottom surface of the hydrophobic layer is coated with an adhesive layer. This utility model, through the combination of the hydrophobic and hydrophilic layers, creates unidirectional moisture-guiding channels, preventing sweat from accumulating on the skin surface. The unidirectional channels effectively release sweat and moisture, avoiding moisture and heat buildup on the skin surface and maintaining a dry and comfortable skin condition.

Description

Technical Field

[0001] This utility model relates to the field of medical tape technology, and more specifically to a novel medical tape. Background Technology

[0002] Currently, breathable adhesive tapes are widely used in medical bandaging, sports protection, home healthcare, and pet protection due to their excellent breathability, non-toxicity, lack of side effects, and ease of use. However, most hospitals in China still use traditional medical tapes for intravenous infusions and wound bandaging. While these tapes can effectively secure surgical wounds, dressings, and infusion tubing, they also adhere closely to the skin when applied.

[0003] However, there are still some drawbacks in the existing technologies mentioned above. Some elderly patients or patients with chronic diseases need to use medical tape to stick medical instruments (such as needles, nasogastric tubes, etc.) for a long time. The tape is in direct contact with the skin, making it difficult for sweat on the skin surface to dissipate. These patients often have weak skin barrier function, which makes the skin on the contact surface exposed to a relatively humid environment for a long time, which can easily lead to skin allergies, itching, and discomfort. If pressure is combined (such as indwelling catheters or fixation devices), pressure sores may develop in a humid environment. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the present invention provides a new type of medical tape.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a roll and a tape body wound on the roll, characterized in that the tape body comprises, from top to bottom: a hydrophilic layer, an adhesive layer, a hydrophobic layer, and an adhesive layer; the hydrophilic layer is made of a small-pore hydrophilic fabric; the adhesive layer is made of a water-based adhesive, with its top surface bonded to the bottom surface of the hydrophilic layer; the hydrophobic layer is made of a hydrophobic fabric with water-guiding channels, its top surface connected to the hydrophilic layer via the adhesive layer, and the bottom surface of the hydrophobic layer is coated with an adhesive layer.

[0006] The present invention is further configured such that: the hydrophobic layer array has a plurality of micro-protrusions, the micro-protrusions are provided with lactobacillus, and the surface of the hydrophilic layer is adapted to form friction protrusions.

[0007] The present invention is further configured such that: the hydrophilic layer is porous polyacrylonitrile fiber, and the hydrophobic layer is polypropylene fiber.

[0008] The present invention is further configured such that the adhesive layer is an adhesive distributed in a grid pattern.

[0009] The present invention is further configured such that: the tape body is provided with through-cut groups at equal intervals along the length direction.

[0010] In summary, this invention has the following beneficial effects: the combination of the hydrophobic layer and the hydrophilic layer forms a one-way moisture-wicking channel, preventing sweat from accumulating on the skin surface and allowing it to be discharged outwards in one direction through the water-wicking channel, thus avoiding moisture and heat buildup on the skin surface and keeping the skin surface dry and comfortable. The micro-protrusions increase the surface friction of this invention, making it easier for medical personnel to hold, and the lactobacillus contained in the micro-protrusions maintains the skin surface in a slightly acidic environment, reducing the risk of redness and infection. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this embodiment;

[0012] Figure 2 This is a cross-sectional view of the tape body in this embodiment;

[0013] Figure 3 This is a schematic diagram of the adhesive layer structure in this embodiment;

[0014] Reference numerals: 1. Roll; 2. Tape body; 21. Cutting edge group; 3. Hydrophilic layer; 31. Friction protrusion; 4. Adhesive layer; 5. Hydrophobic layer; 51. Water channel; 52. Micro-protrusion; 6. Adhesive layer. Detailed Implementation

[0015] The present invention will be further described in detail below with reference to the accompanying drawings.

[0016] This embodiment discloses a novel medical tape, such as Figures 1 to 3 As shown, the tape includes a roll 1 and a tape body 2 wound on the roll 1. The tape body 2, from top to bottom, includes: a hydrophilic layer 3, an adhesive layer 4, a hydrophobic layer 5, and an adhesive layer 6. The hydrophilic layer 3 is made of a small-pore hydrophilic fabric. The adhesive layer 4 uses a water-based adhesive, and its top surface is bonded to the bottom surface of the hydrophilic layer 3. The adhesive layer 4 is thinly coated onto the hydrophobic layer 5 using a roller or melt-blowing technology, so that the water-based adhesive can ensure the bonding strength while forming a breathable film layer after curing, avoiding complete sealing between fibers. The gaps meet the dual requirements of moisture permeability and breathability. The hydrophobic layer 5 is made of hydrophobic fabric with water-guiding channels 51. By using a hydrophobic material for the inner layer and a hydrophilic material for the outer layer, a wetting gradient is formed between the inner and outer layers, promoting the one-way moisture wicking effect of the fabric. By designing the pore sizes of the hydrophilic layer 3 and the hydrophobic layer 5, a "loose inside, dense outside" pore size gradient is formed, and the generated sweat will be quickly guided to the hydrophilic layer 3 for absorption through the water-guiding channels 51, realizing the directional transmission of sweat and keeping the inside dry. Its top surface is connected to the hydrophilic layer 3 through an adhesive layer 4, and the bottom surface of the hydrophobic layer 5 is coated with an adhesive layer 6.

[0017] Further improvements include an array of hydrophobic layers 5 with several micro-protrusions 52, each containing lactobacillus 53. The lactobacillus 53 helps maintain a slightly acidic environment on the skin surface, promoting a tighter arrangement of the stratum corneum to enhance barrier function, inhibiting harmful bacteria, and reducing inflammatory responses. The hydrophilic layers 3 also have corresponding friction protrusions 31 on their surface. These protrusions increase the roughness of the tape surface, making it easier and more precise for medical personnel to tear, position, or adjust the tape when wearing gloves.

[0018] Further improvements include a hydrophobic layer 5 made of polypropylene fiber, which is completely hydrophobic with near-zero water absorption. Its large pore size design helps increase the breathability of the hydrophobic layer 5 and promotes rapid sweat removal. The hydrophilic layer 3 is made of porous polyacrylonitrile fiber, which forms a microporous structure inside the fiber through physical modification (such as adding a pore stabilizer during spinning) or irregular cross-section design (hollow, C-shaped cross-section), enhancing water absorption and breathability. This makes the moisture absorption speed 2-3 times that of cotton, and its small pore size further increases water absorption and accelerates evaporation.

[0019] Furthermore, the adhesive layer 6 is an adhesive distributed in a hexagonal grid pattern. The grid pattern reduces the area of ​​the adhesive that is sealed to the skin, significantly increasing breathability; during peeling, the peeling stress is concentrated at the grid nodes or edges, forming a controllable "crack propagation path," making peeling more uniform, reducing the risk of adhesive breakage, and effectively reducing adhesive residue.

[0020] Furthermore, the tape body 2 is provided with through-cut groups 21 at equal intervals along its length. The cut groups 21 are spaced 10cm apart, which meets the needs of most applicable scenarios in doctor-patient relationships; the design of the cut groups 21 facilitates quick and convenient tearing for segmentation of this utility model, eliminating the need for cutting with scissors.

[0021] Working principle of this utility model

[0022] When using this invention, the tape body 2 is peeled off from the roll 1, and the required tape segments can be separated by simply tearing from the cut group 21. These segments can then be pasted onto the desired location, making it very simple and convenient.

[0023] When the skin is in contact with the adhesive layer, the sweat produced by the skin will be discharged through the one-way moisture-wicking channel formed by the combination of the hydrophobic layer 5 and the hydrophilic layer 3, keeping the skin surface dry. The lactobacillus 53 provided on the micro-protrusions 52 can keep the skin surface pH at a slightly acidic level, reducing the occurrence of redness, swelling and itching.

[0024] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the design concept of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel medical tape, comprising a roll (1) and a tape body (2) wound on the roll (1), characterized in that: The tape body (2) comprises, from top to bottom, a hydrophilic layer (3), an adhesive layer (4), a hydrophobic layer (5), and an adhesive layer (6). The hydrophilic layer (3) is made of hydrophilic fabric with small pores. The adhesive layer (4) is made of water-based adhesive, and its top surface is bonded to the bottom surface of the hydrophilic layer (3). The hydrophobic layer (5) is made of hydrophobic fabric with water-guiding channels (51), and its top surface is connected to the hydrophilic layer (3) through the adhesive layer (4). The bottom surface of the hydrophobic layer (5) is coated with the adhesive layer (6).

2. A new medical adhesive tape according to claim 1, characterized by: The hydrophobic layer (5) array has a number of micro protrusions (52), and lactobacillus (53) is disposed in the micro protrusions (52). Friction protrusions (31) are formed on the surface of the hydrophilic layer (3).

3. The novel medical tape according to claim 1, characterized in that: The hydrophilic layer (3) is a porous polyacrylonitrile fiber, and the hydrophobic layer (5) is a polypropylene fiber.

4. The novel medical tape according to claim 1, characterized in that: The adhesive layer (6) is an adhesive distributed in a grid pattern.

5. The novel medical tape according to claim 1, wherein: The tape body (2) has through-cut groups (21) evenly spaced along its length.

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