CN220477722U

CN220477722U - Easy-to-tear band-aid

Info

Publication number: CN220477722U
Application number: CN202321611945.8U
Authority: CN
Inventors: 殷奕添; 陈勇
Original assignee: Second Affiliated Hospital of Soochow University
Current assignee: Second Affiliated Hospital of Soochow University
Priority date: 2023-06-25
Filing date: 2023-06-25
Publication date: 2024-02-13
Anticipated expiration: 2033-06-25

Abstract

The utility model discloses an easy-to-tear band-aid, which mainly comprises: sticking cloth, cotton layer and adhesive area. The sticking cloth has elasticity. The cotton layer is positioned in the middle of the first surface of the sticking cloth. The adhesive area can be subdivided into different sub-areas, wherein the first adhesive area is arranged on the first surface of the patch and is close to the cotton layer; the second viscose area is arranged on the first surface of the sticking cloth and is positioned outside the first viscose area. The first adhesive area and the second adhesive area can adopt the same or different adhesives so as to improve the tearing performance of the adhesive bandage after the use.

Description

Easy-to-tear band-aid

Technical Field

The utility model relates to a band-aid, in particular to a novel band-aid which is easy to tear off from the skin of a wound, and belongs to the technical field of medical supplies.

Background

The band-aid is a medical product commonly used in daily life. The band-aid not only can be used for nursing after injuries such as small wounds and small scratches, but also can be used for protecting injuries.

The existing band-aid can be firmly adhered to the skin, and the band-aid is contacted with the skin more and more tightly along with the extension of the adhering time, so that the band-aid is not easy to tear. When the band-aid is torn off, even a certain probability is provided for causing the secondary cracking of the wound, and pain is brought to a user.

Patent application number 201510124098.6 discloses an easy-to-tear-open band-aid, which mainly comprises: non-adhesive ring, adhesive tape, gauze. The method is characterized in that: the adhesive rings are arranged on the two sides of the adhesive tape, so that the adhesive tape is convenient to take when being torn off, and the adhesive tape can be torn off more easily. The band-aid has the following defects: when in use, the non-adhesive rings on the two sides are separated from the skin; the band-aid is easily detached from the band-aid when attached for a long time.

The adhesive bandage with the non-adhesive ring is easy to uncover, but simultaneously brings the problem of easy falling. Those skilled in the art have focused their efforts on developing a new type of band-aid that is secure when applied and convenient when removed.

Disclosure of Invention

The utility model aims to solve the technical problems: how to make the band-aid easy to tear from the wound skin after use.

In order to solve the technical problems, the utility model provides an easy-to-tear band-aid, which comprises the following components:

a patch having elasticity;

the cotton layer is positioned in the middle of the first surface of the sticking cloth;

the first viscose area is arranged on the first surface of the sticking cloth and is close to the cotton layer;

the second adhesive area is arranged on the first surface of the sticking cloth and is positioned outside the first adhesive area.

In some embodiments, the first adhesive region and the second adhesive region both employ a first type of adhesive, the first type of adhesive configured to: when the adhesive bandage is wet, the adhesive property of the first adhesive area and the second adhesive area is weakened.

In some embodiments, the first adhesive region and the second adhesive region both employ a second type of adhesive, the second type of adhesive configured to: when the adhesive bandage is attached to the skin of a user for more than a preset time period, the adhesive property of the first adhesive area and the second adhesive area is weakened.

In some embodiments, the preset duration is 24 hours.

In some embodiments, the first adhesive region and the second adhesive region employ different adhesives.

In some embodiments, the second adhesive area is less adhesive to the skin than the first adhesive area when the adhesive bandage is in use.

In some embodiments, the second adhesive region employs a first type of adhesive configured to: when the adhesive bandage is wet, the adhesive property of the second adhesive area is weakened.

In some embodiments, the first adhesive region is a wet-invariance adhesive, and the width of the first adhesive region from the cotton layer is 5-20 mm.

In some embodiments, the first adhesive region employs a first type of adhesive configured to: when the adhesive bandage becomes wet, the adhesive property of the first adhesive area is weakened.

In some embodiments, the second adhesive area is an adhesive that does not change when exposed to moisture, and the second adhesive area is located 2-5 mm from the edges of the two ends of the patch.

The utility model has the beneficial effects that: the easy-to-tear band-aid provided by the utility model is easy to tear after being stuck to the skin of a wound, and is convenient to use.

Drawings

Fig. 1 is a schematic view of the tearable adhesive bandage provided in embodiment 1 of the present utility model.

Fig. 2 is a schematic view of the tearable adhesive bandage provided in embodiment 2 of the present utility model.

Fig. 3 is a schematic view of the tearable adhesive bandage provided in embodiment 3 of the present utility model.

Fig. 4 is a schematic view of the tearable adhesive bandage provided in embodiment 4 of the present utility model.

The meaning of the reference numerals in the above figures is as follows:

110. sticking cloth

111. Adhesive area

120. Cotton layer

210. Sticking cloth

211. Adhesive area

220. Cotton layer

310. Sticking cloth

311. Adhesive area

312. Adhesive area

320. Cotton layer

410. Sticking cloth

411. Adhesive area

412. Adhesive area

420. Cotton layer

Detailed Description

Unless defined otherwise, technical or scientific terms used in the claims and specification of this patent should be given the ordinary meaning as understood by one of ordinary skill in the art to which this patent belongs.

The terms "first," "second," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. The terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. In the description of this patent, unless otherwise indicated, the meaning of "a plurality" is two or more.

Various embodiments of the utility model may be substituted or combined, and the utility model is thus also to be considered to include all possible combinations of the same and/or different embodiments described. Thus, if one embodiment includes feature A, B, C and another embodiment includes feature B, D, then the present utility model should also be considered to include embodiments that include one or more of all other possible combinations including A, B, C, D, although such an embodiment may not be explicitly recited in the following.

Example 1

The easy-to-tear band-aid provided by the embodiment is shown in figure 1. The band-aid mainly consists of a sticking cloth 110, an adhesive area 111 and a cotton layer 120. The cotton layer 120 is located in the middle of the first side of the patch 110. The adhesive area 111 is disposed on the first surface of the patch and is adjacent to the cotton layer 120. The adhesive bandage may also be provided with release paper (not shown) for protecting the adhesive area 111 and the cotton layer 120. After tearing off the release paper, the adhesive bandage can be stuck for use.

The common waterproof band-aid adopts waterproof band-aid cloth, and has the main functions of preventing moisture or other liquid from penetrating into the band-aid, guaranteeing the dryness of wounds and avoiding infection. The patch 110 employed in the present embodiment does not require high water resistance. The patch 110 is made of medical elastic cloth, and has good elasticity and air permeability. The patch 110 has a strip shape with a length of 5-10 cm, a width of 1-2 cm, and a thickness of 0.1-1 mm. The two ends of the patch 110 are provided in a semicircular shape.

The cotton layer 120 is fixed in the middle of the patch 110, and the cotton layer 120 directly contacts the wound, and is required to be sterile, soft, skin-friendly, water-absorbent, breathable, and not to drop scraps. The cotton layer 120 has a main function of protecting the wound from external impact, compression and friction, absorbing blood and lymph exuded from the wound surface, and keeping the wound dry through the ventilation holes, thereby accelerating the wound healing speed.

The main function of the adhesive area is to firmly adhere the adhesive bandage to the skin surface, so that the adhesive bandage is prevented from falling off in daily life, and the wound is protected from external pollution and infection. The adhesive area is generally made of medical special adhesive materials, has good viscosity and adhesion performance, and can tightly adhere the adhesive cloth to the skin surface.

The adhesive area 111 in this embodiment is a special adhesive, which can be firmly adhered to the skin of a wound when being dried, and once the adhesive is wetted by water (or other common living liquids), the adhesive performance of the adhesive is greatly weakened, and the adhesive can be torn off from the skin with little effort. Such adhesives are the current hydrophilic pressure sensitive adhesives commonly found in the market. For example, polyvinyl alcohol resin (POVAL) produced by the Japanese colali (KURARAY) group ^TM )。KURARAY POVAL ^TM The polyvinyl alcohol resin is a functional resin which is industrially used in the global first place, and is also one of core products of cola groups.

The easy-to-tear band-aid provided by the embodiment is very suitable for children. The child is loved to play, and after the wounded plaster is attached, the child still has a great probability of carelessly contacting the wounded part with water. By adopting the easy-tearing adhesive bandage provided by the embodiment, children can tear the adhesive bandage off the adhesive bandage by themselves after the adhesive bandage is dipped in water, and then the adhesive bandage is replaced with a new adhesive bandage, so that the wound is ensured to be in a good healing and rehabilitation environment all the time.

Example 2

The composition of the easy-to-tear tape provided in this embodiment is substantially similar to that of the adhesive bandage of embodiment 1, as shown in fig. 2. The band-aid is mainly composed of a cloth 210, an adhesive area 211 and a cotton layer 220. Cotton layer 220 is located in the middle of the first side of patch 210. The adhesive area 211 is disposed on the first side of the patch and is adjacent to the cotton layer 220.

The patch 210 is made of non-woven fabric, and has good elasticity and air permeability. The patch 210 is strip-shaped, has a length of 5-10 cm, a width of 1-2 cm, and a thickness of 0.1-1 mm. The two ends of the decal 210 are provided in a semicircular shape.

The cotton layer 220 is fixed at the middle of the patch 210 of the band-aid, and the cotton layer 220 directly contacts the wound, requiring sterility, softness, skin-friendliness, water absorption, ventilation, no chip falling, and promoting wound healing. Further, agents such as sterilizing agents, agents for promoting wound healing and skin growth, etc. may be pre-applied to the surface of the cotton layer 220, allowing the band-aid to have more functions.

The adhesive area 211 used in this embodiment is a special adhesive, but is a commercially available adhesive. The adhesive can be firmly adhered to the skin in the initial stage, after the preset time, the adhesive is aged to cause the adhesiveness to be rapidly reduced, even the adhesive falls off automatically, and the adhesive bandage is easily taken down from the wound. The preset time length can be 6 hours, 12 hours, 24 hours and the like, and the preparation and the manufacturing process of the viscose can be adjusted according to the needs. Preferably, the predetermined period of time is about 24 hours.

The easy-tearing adhesive bandage provided by the embodiment is suitable for the adhesive bandage with the cotton layer 220 and the medicament. Over time, the effectiveness of the agent gradually diminishes, and the band-aid needs to be replaced. The critical point of tackiness of the tacky area 211 is designed to be: matching with the acting time of the medicine. When the medical effect of the cotton layer 220 is eliminated, the viscosity of the adhesive area 211 is also deteriorated, the band-aid is easily torn off from the wound, and then a new medical band-aid is replaced until the wound is completely healed.

Example 3

The composition structure of the easy-to-tear band-aid provided in this embodiment is shown in fig. 3, which can be regarded as an improvement of the band-aid provided in embodiment 1. The band-aid mainly comprises a piece of cloth 310, a cotton layer 320, an adhesive area 311 and an adhesive area 312. Cotton layer 320 is located in the middle of the first side of patch 310. The adhesive area 311 is disposed on the first surface of the patch and is close to the cotton layer 320. The adhesive area 312 is disposed on the first surface of the patch and is located outside the adhesive area 311, as shown in fig. 3. To achieve different functions, the adhesive area 311 and the adhesive area 312 use different adhesives.

The patch 310 is made of a microporous polyethylene film, and has good elasticity and air permeability. The patch 310 is strip-shaped, has a length of 5-10 cm, a width of 1-2 cm, and a thickness of 0.1-0.5 mm. The cotton layer 320 is fixed at the middle of the patch 310 of the band-aid, and the cotton layer 320 directly contacts the wound, is required to be sterile, soft, skin-friendly, water-absorbent, breathable, and free of scraps, and can promote wound healing.

The adhesive area 312 is firmly adhered to the wound skin when it is dry, and once it is wetted by water (or other liquid commonly found in life), its adhesive properties are greatly reduced, and it can be removed from the skin with little effort, or it can be detached by itself after being wetted. The adhesive area 311 is waterproof adhesive, and the adhesive performance is unchanged after being wetted by water or other liquids. The viscose area 311 is positioned around the cotton layer 320, and the width of the viscose area 311 from the cotton layer 310 is 0.5-2 cm, so that moisture can be prevented from reaching the wound, and the wound is well protected.

After the easy-to-tear adhesive tape provided in this embodiment is wet, most of the area outside the adhesive tape 310 is easily torn off from the skin, and these areas are the areas where the adhesive area 312 is located. However, the adhesive tape 310 near the wound is still adhered to the skin of the wound by the adhesive area 311, thereby providing a favorable time for the replacement of the band-aid. After a new band-aid is obtained, the two ends of the band-aid 310 are easily torn off, then the rest of the band-aid (namely the area where the adhesive area 311 is located) is only carefully torn off, the band-aid can be entirely torn off, and then the new band-aid is replaced until the wound is completely healed.

The adhesive area 312 of the present embodiment may also be the adhesive used in embodiment 2, and after a preset period of time, the adhesiveness of the adhesive area 312 will be rapidly reduced, and the adhesive area is easy to tear. However, the adhesive area 311 can also make the rest part of the band-aid stick to the skin, and the area is smaller, so that the band-aid can be torn off with little effort.

Example 4

The composition structure of the easy-to-tear band-aid provided in this embodiment is shown in fig. 4, and can be regarded as another modification of the band-aid provided in embodiment 1. The adhesive bandage mainly comprises a piece of adhesive cloth 410, a cotton layer 420, an adhesive area 411 and an adhesive area 412. The cotton layer 420 is located in the middle of the first side of the patch 410. The adhesive area 412 is disposed on the first surface of the patch and is located outside the adhesive area 411. Specifically, the adhesive areas 412 are located at both side edges of the patch 410. To achieve different functions, the adhesive zones 411 and 412 use different adhesives.

The patch 410 is made of medical elastic cloth, and has good elasticity and air permeability. The patch 410 is strip-shaped, has a length of 5-10 cm, a width of 1-2 cm, and a thickness of 0.1-1 mm. The two ends of the decal 410 are provided in a semicircular shape. The cotton layer 420 is fixed at the middle of the patch 410 of the band-aid, and the cotton layer 420 directly contacts the wound, is required to be sterile, soft, skin-friendly, water-absorbent, breathable, and free of scraps, and can promote wound healing.

The adhesive area 411 used in this embodiment can be firmly adhered to the wound skin when it is dried, and once it is wetted by water (or other common liquid in life), its adhesive property is greatly weakened, and it can be removed from the skin with little effort, or it can be automatically removed after being wetted.

The adhesive area 412 used in this embodiment is a common adhesive, which is firmly adhered, and the adhesive performance is unchanged after being wetted. The adhesive area 412 is located in a small area at the edge of the patch 410 and when the adhesive area 411 is adhered with water, it is separated from the skin by itself, but due to the adhesive area 412, the whole band-aid remains covered on the wound, providing a substantial degree of protection to it until a new band-aid is replaced. Preferably, the width of the glue area 412 is 2-5 mm. If it is less than 2 mm, the adhesive connection effect is limited. If it is more than 5 mm, the adhesion force is large, resulting in difficulty in tearing.

When the band-aid needs to be replaced, most of the patch has been separated from the wound skin. The portion of the patch 410 that has been separated from the skin is grasped, and the adhesive area 412 is small and located at the edge of the patch 410, and is easily carried along therewith and then separated from the skin.

The adhesive area 411 in this embodiment may also be an adhesive as provided in embodiment 2, and the adhesive can be firmly adhered to the skin at the initial stage, and after a preset period of time, the adhesion will drop sharply, and even drop off by itself.

Many modifications and variations will be apparent to those of ordinary skill in the art in light of the concepts of the utility model without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.

Claims

1. The easy-to-tear band-aid is characterized by comprising:

a patch having elasticity;

2. The peel-off band-aid of claim 1, wherein the first adhesive area and the second adhesive area both employ a first type of adhesive, the first type of adhesive configured to: when the band-aid becomes wet, the adhesive property of the first adhesive area and the second adhesive area is weakened.

3. The peel-off band-aid of claim 1, wherein the first adhesive area and the second adhesive area both employ a second type of adhesive, the second type of adhesive configured to: when the adhesive bandage is attached to the skin of a user for longer than a preset period of time, the adhesive property of the first adhesive area and the second adhesive area is weakened.

4. The peel-off band-aid of claim 3, wherein the predetermined duration is 24 hours.

5. The peel-off band-aid of claim 1, wherein the first adhesive area and the second adhesive area are of different adhesives.

6. The peel-off band-aid of claim 5, wherein the second adhesive area is less adhesive to the skin than the first adhesive area when the band-aid is in use.

7. The peel-off band-aid of claim 5, wherein the second adhesive area is a first type of adhesive configured to: when the band-aid becomes wet, the adhesive property of the second adhesive area is weakened.

8. The easy-to-tear adhesive bandage of claim 7, wherein said first adhesive area is an adhesive that does not change when exposed to moisture, and said first adhesive area is 5-20 millimeters from said cotton layer.

9. The peel-off band-aid of claim 5, wherein the first adhesive area is a first type of adhesive configured to: when the band-aid becomes wet, the adhesive property of the first adhesive area is weakened.

10. The easy-to-tear adhesive bandage of claim 9, wherein the second adhesive area is an adhesive which is not denatured when exposed to moisture, and the second adhesive area is positioned at the 2-5 mm positions of the edges of the two ends of the bandage.