TWI612945B - An anti-scar means - Google Patents

Abstract

A patch for preventing scar hyperplasia of wounds, which is composed of a support layer, a surface layer and a polymer pressure sensitive adhesive The layer is composed. Wherein, the support layer has a first surface and a second surface, and is composed of an elastic and malleable elastic fiber material, and the surface layer is disposed on the first surface of the support layer, which is waterproof, transparent and breathable. The polymer elastic material is composed of a polymer pressure-sensitive adhesive layer disposed on the second surface of the support layer, and is mainly composed of carboxymethyl cellulose, styrene-butadiene rubber, polyvinylpyrrolidone, polyethylene glycol, or the like. Composed of. This patch for preventing scar hyperplasia of the wound not only prevents the formation of scars more effectively, but also meets the requirements of hygienic safety because of its disposable single-use characteristics.

Description

Patch to prevent scar hyperplasia of wounds

This invention relates to a medical patch, and more particularly to a patch for preventing scar hyperplasia of a wound.

In the process of open wound healing such as various surgical sutures, knife wounds, scratches, burns and abrasions, if the wounds are not properly taken care of, so that the skin growth of the wound healing is controlled, often the wounds have healed. However, abnormal skin tissue such as hypertrophic scars or scars of the crab feet is left at the injured site, which seriously affects the skin aesthetics of the patient.

In order to avoid scars such as hypertrophy or crab foot swelling left in wound healing, it is usually used in the wound healing process to control the growth of wound healing by using a re-cleanable silicone patch or a gelatinous silicone film. To avoid the formation of scars and maintain the aesthetics of the patient's skin. However, conventional silicone products have limited efficacy in preventing scar formation, and repeated cleaning of the silicone patch may cause contamination of the wound due to contamination concerns.

In view of the above, it is an object of the present invention to provide a patch for preventing scar hyperplasia of wounds, which not only can prevent the formation of scars more effectively, but also has better hygiene and safety requirements due to its disposable single-use characteristics.

To achieve the above and other objects, the present invention provides a patch for preventing scar hyperplasia of a wound, wherein the patch for preventing scar hyperplasia of the wound comprises a support layer, a surface layer and a polymer pressure sensitive adhesive layer. Wherein, the support layer has a first surface and a second surface, and is composed of an elastic and malleable elastic fiber material, and the surface layer is disposed on the first surface of the support layer, and has a waterproof, transparent and breathable property. The polymer elastic material is composed of a polymer pressure-sensitive adhesive layer disposed on the second surface of the support layer, and is mainly composed of carboxymethyl cellulose, styrene-butadiene rubber, polyvinylpyrrolidone, polyethylene glycol, or the like. Composed of.

In one embodiment, the patch for preventing scar hyperplasia of the wound according to the present invention has a ratio of carboxymethylcellulose of a main component of between 30% and 40%, and styrene-butadiene rubber. The ratio is between 15% and 20%, the ratio of polyvinylpyrrolidone is between 15% and 20%, and the ratio of polyethylene glycol is 10%. Between five and twenty.

In one embodiment, the present invention provides a patch for preventing scar hyperplasia of a wound, wherein the support layer is, for example, selected from the group consisting of polyethylene terephthalate, polyurethane, polypropylene, and polyethylene. It is composed of a material such as a polymer elastic cloth fiber or a carbon fiber of a composite material, and has a unidirectional stretching property at the time of preparation, and is particularly suitable for frequent movement of joint parts, and the crepe film is reduced in viscosity after stretching. The scar wound is used, and because it is not stretched in the other direction perpendicular to the direction of stretching, it can provide a downward pressure on the wound, avoiding the cracking of the wound, and the effect of closing the wound with the seam-free tape. Preferably, the support layer is perpendicular to the direction of extension without one of the stretch characteristics, with a pressure characteristic greater than 20 mm Hg for better scar smoothing.

In one embodiment, the present invention provides a patch for preventing scar hyperplasia of a wound, wherein the surface layer is composed of a polymer elastic material including polyurethane, polypropylene or polyethylene to achieve waterproofing thereof. , transparent and breathable characteristics.

In one embodiment, the present invention provides a patch for preventing scar hyperplasia of wounds, further comprising a first release protective layer and a second release protective layer covering the surface layer and the polymer pressure sensitive adhesive layer respectively. It is used to protect the surface layer and the polymer pressure layer.

In summary, according to the present invention, a patch for preventing scar hyperplasia of a wound can be combined with a support layer composed of an elastic and ductile elastic fiber material, and a polymer having waterproof, transparent and gas permeable properties. The elastic surface layer and the polymer pressure-sensitive adhesive layer mainly composed of carboxymethyl cellulose, styrene-butadiene rubber, polyvinylpyrrolidone and polyethylene glycol, etc., which are completely sealed, moisturized, pressed down and equivalent The scar pressure characteristic makes it possible to obtain a better anti-scarring effect than a conventional silicone patch or a gel-like silicone film. In addition, because of its disposable single-use characteristics, it can meet the requirements of health and safety.

10‧‧‧Spread to prevent scar hyperplasia of wounds

11‧‧‧Support layer

111‧‧‧ first surface

112‧‧‧ second surface

12‧‧‧ surface layer

13‧‧‧Polymer pressure sensitive adhesive layer

14‧‧‧First release protective layer

15‧‧‧Second release protective layer

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic view showing the composition of a patch for preventing scar hyperplasia of a wound according to a preferred embodiment of the present invention.

Fig. 2 is a schematic exploded view showing the patch for preventing scar hyperplasia of Fig. 1.

The above and other objects, features, and advantages of the present invention will become more apparent and understood.

Please refer to FIG. 1 and FIG. 2, which are schematic diagrams showing the composition and decomposition of a patch for preventing scar hyperplasia of a wound according to a preferred embodiment of the present invention. As shown in the figure, the patch 10 for preventing scar hyperplasia of the wound includes the support layer 11, the surface layer 12 and the polymer pressure-sensitive adhesive layer 13, and further, in order to protect the surface layer 12 and the polymer pressure-sensitive adhesive layer 13, the surface layer is prevented. 12 and the polymer pressure sensitive adhesive layer 13 are damaged or contaminated, and the patch 10 for preventing scar hyperplasia of the wound further comprises a first release protective layer 14 for covering the surface layer 12 and the polymer pressure sensitive adhesive layer 13, respectively. And the second release protective layer 15.

In the figure, the support layer 11 has a first surface 111 and a second surface 112, which are elastic and malleable, for example, selected from polyethylene terephthalate (PET), polyurethane. (polyurethane, abbreviated as PU), polypropylene (polypropylene, abbreviated as PP), polyethylene (polyethylene, abbreviated as PE) or its composite material, elastic fiber cloth or carbon fiber and other elastic fiber materials, and in order to prevent conventional silicone stickers When the sheet is used for a wound which is frequently active, for example, a joint portion, the sticking property is lowered due to active stretching, and the peeling is easy, and the support layer 11 preferably has a one-way stretching property to prolong the preparation. It uses the fit time.

In addition, because it is not stretched in the other direction perpendicular to the direction of stretching, it can provide a downward pressure on the wound, avoiding the cracking of the wound, and the effect of closing the wound with the seam-free tape. Wherein the support layer 11 is perpendicular to the direction of stretching without one of the stretch characteristics, preferably having a pressure characteristic greater than 20 mmHg to obtain a better scar smoothing effect.

The surface layer 12 is disposed on the first surface 111 of the support layer 11 and is made of a waterproof, transparent, and gas permeable property, for example, including polyurethane (polyurethane, polypropylene, or PP). It is composed of a polymer elastic material such as polyethylene (PE), and when the patch 10 for preventing scar hyperplasia of the wound is applied to the skin, it can be used for the adhesion of the skin and has the effect of moisturizing the skin.

The polymer pressure sensitive adhesive layer 13 is disposed on the second surface 112 of the support layer 11, and is mainly composed of Carboxymethyl Cellulose, Styrene-butadiene, and Polyvinylpyrrolidone. ) It is composed of polyethylene glycol or the like to increase the airtightness and moisturizing function of the skin, thereby enhancing the effect of preventing scar hyperplasia of the wound.

Among them, the ratio of the components such as carboxymethylcellulose, styrene-butadiene rubber, polyvinylpyrrolidone and polyethylene glycol can be adjusted according to the physical properties of the patch 10 which is prepared to prevent scarring of wounds. In this embodiment, the ratio of the carboxymethyl cellulose of the patch 10 for preventing scar hyperplasia of the wound is adjusted between 30% and 40%, and the ratio of the styrene-butadiene rubber is adjusted. Between 15 and 20 percent, the ratio of polyvinylpyrrolidone is adjusted between 15 and 20 percent, while the ratio of polyethylene glycol is adjusted to be between 100 and 20 percent. Between 15 and 20 points.

In use, firstly, the scar portion to be applied is cleaned, and then one side of the second release layer 15 is torn off, and then the longer side of the patch 10 for preventing scar hyperplasia of the wound is aligned with the scar in parallel with the scar. After confirming that the patch 10 for preventing scar hyperplasia of the wound completely covers the scar, the second release protective layer 15 is completely removed and then gently pressed, so that the patch 10 for preventing scar hyperplasia of the wound is entirely attached to the skin, and then The first release protective layer 14 can be peeled off to complete the overlay.

While the invention has been described above by way of a preferred embodiment, it is not intended to limit the invention, and it is intended to be within the scope of the invention. . Therefore, the scope of the invention is defined by the scope of the appended claims.

10‧‧‧ 防疤片

11‧‧‧Support layer

12‧‧‧ surface layer

13‧‧‧Polymer pressure sensitive adhesive layer

14‧‧‧First release protective layer

15‧‧‧Second release protective layer

Claims (9)

A patch for preventing scar hyperplasia of a wound, comprising: a support layer having a first surface and a second surface, which is composed of an elastic and malleable elastic fiber material, and has a unidirectional stretching property; a surface a layer disposed on the first surface of the support layer and composed of a polymer elastic material having waterproof, transparent and gas permeable properties; and a polymer pressure sensitive adhesive layer disposed on the second surface of the support layer Mainly composed of carboxymethyl cellulose, styrene butadiene rubber, polyvinylpyrrolidone and polyethylene glycol, wherein the proportion of the carboxymethyl cellulose is between 30% and 40%, The proportion of benzene rubber is between 15% and 20%, the ratio of polyvinylpyrrolidone is between 15% and 20%, and the ratio of polyethylene glycol is between 100%. Between 15 and 20; wherein the patch is perpendicular to the direction of extension without one of the stretch characteristics, having a pressure characteristic greater than 20 mmHg. A patch for preventing scar hyperplasia of a wound according to claim 1, wherein the support layer comprises a polymer elastic cloth fiber or carbon fiber. The patch for preventing scar hyperplasia according to the first aspect of the invention, wherein the elastic fiber material constituting the support layer comprises polyethylene terephthalate, polyurethane, polypropylene or polyethylene. The patch for preventing scar hyperplasia of a wound according to the first aspect of the invention, wherein the surface layer comprises a polymer elastic material of polyurethane, polypropylene or polyethylene. The patch for preventing scar hyperplasia according to the first aspect of the patent application further includes a first release protective layer and a second release protective layer covering the surface layer and the polymer pressure sensitive adhesive layer respectively. The surface layer and the polymer pressure sensitive adhesive layer are protected from contamination or damage. A patch for preventing scar hyperplasia of a wound, wherein the patch comprises: a support layer having a first surface and a second surface, which are constructed of elastic and malleable elastic fiber materials. And having a unidirectional stretching property; a surface layer disposed on the first surface of the support layer, comprising a polymer elastic material having waterproof, transparent and gas permeable properties; and a polymer pressure sensitive adhesive layer Disposed on the second surface of the support layer, mainly composed of carboxymethyl cellulose, styrene butadiene rubber, polyvinylpyrrolidone and polyethylene glycol; wherein the sanitary patch is perpendicular to the stretching direction without One of the stretching characteristics has a pressure characteristic greater than 20 mmHg. The use of the scope of claim 6, wherein the proportion of the carboxymethyl cellulose is between 30% and 40%, and the proportion of styrene-butadiene rubber is between 15% and 20%. The ratio of inter-polyvinylpyrrolidone is between 15 and 20 percent, and the ratio of polyethylene glycol is between 15 and 20 percent. The use of claim 6, wherein the support layer comprises a polymeric elastic cloth fiber or a carbon fiber. The use according to claim 6, wherein the elastic fiber material constituting the support layer comprises polyethylene terephthalate, polyurethane, polypropylene or polyethylene; wherein the surface layer comprises a polyamino group. A polymer elastic material of a formate, polypropylene or polyethylene.