CN211156691U - Medical patch based on moist environment maintaining technology for promoting wound healing - Google Patents

Abstract

The utility model relates to a medical device. A medical patch based on the moisturizing environment maintenance technology for promoting wound healing, including a fixing layer, an absorption layer is arranged on the fixing layer, a water-permeable film is compounded on the absorption layer, and a chitosan layer is coated on the water-permeable film. There is a protective layer on the layer. The utility model provides a medical surgical wound dressing, which is beneficial for absorbing exudate, can quickly coagulate the wound, and can evenly distribute the medicine for coagulating the wound; The technical problems of slow wound healing and poor waterproof function of the base material.

Description

Medical patch based on moist environment maintenance technology to promote wound healing

technical field

The utility model relates to a medical device, in particular to a medical sticker based on the moist environment maintenance technology for promoting wound healing.

Background technique

Different degrees of skin damage often occur in people's daily life, work and various diseases, operations and accidental injuries. In the event of skin injury, dressings are urgently needed to cover and protect the wound to provide an environment conducive to healing. After gradually replacing traditional degreased gauze, the self-adhesive dressing has the characteristics of protecting the wound surface, absorbing exudate and non-sticking the wound. It is widely used in clinical practice and is still in use today. However, the self-adhesive dressing still has many shortcomings: 1) Its anti-adhesive barrier layer does not have the function of hemostasis at the same time as it does not stick to the wound. , directly to the medical non-woven absorbent layer, so that the liquid absorption capacity of the non-woven absorbent layer can easily reach saturation, and oozing blood often passes through the mesh non-woven fabric substrate layer, which will increase the risk of bacterial infection and increase clinical dressing changes. 2) The anti-stick isolation layer is a water-repellent material and a biologically inert material, which cannot play any physiological role in promoting wound healing. To a certain extent, the wound healing time of patients is prolonged, thereby increasing potential opportunity costs such as time costs for both doctors and patients; 3) The substrate layer does not have waterproof function, and its elasticity is poor. In hot weather and other situations where patients need to take a bath In addition, it increases the risk of wound infection and the workload of dressing change, and the dressing is easy to fall off when used on joints that need to be stretched, which also increases the workload and cost of dressing change.

SUMMARY OF THE INVENTION

The utility model provides a wound dressing for medical surgery, which is favorable for absorbing exudate, can quickly coagulate the wound, and can evenly distribute the medicine for coagulating the wound; The technical problems of slow wound healing and poor waterproof function of the base material.

The above-mentioned technical problem of the present utility model is solved by the following technical solutions: a medical sticker based on the moist environment maintenance technology for promoting wound healing includes a fixing layer, an absorption layer is arranged on the fixing layer, and a water-permeable membrane is compounded on the absorption layer , the water permeable membrane is coated with a chitosan layer, and a protective layer is provided on the chitosan layer. Generally, after surgery, the wound surface is relatively large. The absorbent layer uses superabsorbent fiber as the application material, which can quickly absorb the obvious exudate of the wound, and at the same time, it can maintain a moist wound environment with its water-locking ability, so that the chitosan on the water-permeable film can be absorbed. The sugar layer plays a role in inhibiting infection, promoting wound healing and promoting blood coagulation in a humid environment. After the chitosan layer is attached to the water-permeable film, the water-permeable film is then fixed on the water-absorbing layer by machine compound heating. In this way, the chitosan layer can be evenly attached to the water-permeable membrane, which solves the problem that some applications are currently applied, and the drug is directly coated on the absorbing layer, and the drug needs to be coated in a drying mode, thus causing the distribution of the drug. It is not uniform, and it will also affect the adsorption of the absorbing layer. The fixed layer is made of non-woven fabrics, which can not only prevent liquid seepage, but also have high moisture permeability. The protective layer seals the absorption layer, the water-permeable film and the chitosan layer on the fixed layer to ensure that it will not be affected by the external environment before use.

Preferably, the absorption layer is located in the middle of the fixed layer, the area of the absorption layer is smaller than that of the fixed layer, the area of the permeable membrane is the same as the area of the absorption layer, the area of the protective layer and the fixed layer are the same, and the protective layer and the fixed layer are connected. The fixed layer has a larger area, which is convenient to be fixed with the skin during use, so that the absorption layer and the chitosan layer can play a better role. Before use, the convenient and protective layer is fastened.

Preferably, the absorbent layer is made of acrylic-based superabsorbent fibers. It has a water absorption capacity of more than 15 times, which can quickly absorb the exudate of the wound surface, and at the same time, because of its strong water-locking ability, the wound surface can keep a certain moist state, so that the chitosan layer coated on the surface is easier to play. corresponding function.

Preferably, through holes are uniformly distributed on the water permeable membrane. The absorbent layer can better maintain a moist environment, and improve the function of the chitosan layer to inhibit infection, promote wound healing and promote blood coagulation.

Preferably, the length of the fixed layer is 5-30 cm, and the width of the fixed layer is 5-30 cm. It can be applied to larger wounds after surgery.

Therefore, the medical patch based on the moist environment maintenance technology for promoting wound healing of the present invention has the following advantages: it can maintain good moisture permeability, and at the same time, the absorption layer adopts superabsorbent fibers, which can quickly absorb the obvious exudate of the wound. , and maintain a moist wound environment with the help of the water-locking ability of the absorbing layer; a water-permeable film is compounded on the absorbing layer, and the chitosan layer is coated on the water-permeable film, which can ensure the uniformity of the chitosan layer and can effectively inhibit the infection, promote wound healing and promote blood coagulation.

Description of drawings

FIG. 1 is a perspective view of a medical patch based on the moist environment maintenance technology for promoting wound healing according to the present invention.

FIG. 2 is a cross-sectional view of FIG. 1 .

Detailed ways

The technical solutions of the utility model are further described in detail below through the embodiments and in conjunction with the accompanying drawings.

Example:

As shown in Figures 1 and 2, the medical patch based on the moist environment maintenance technology for promoting wound healing includes a fixing layer 1 made of non-woven fabric, and the length and width of the fixing layer 1 are 15cm*10cm respectively. An absorbent layer 2 is arranged in the middle of the fixed layer 1 , and the absorbent layer 2 uses superabsorbent fibers based on acrylic chemical raw materials as the core material. On the absorbing layer 2, a polyethylene film is cured by machine compound heating, the polyethylene film is used as the water-permeable layer 3, and the chitosan layer 6 is uniformly coated on the water-permeable layer 3. The absorption layer 2 can quickly absorb the obvious exudate of the wound, and can also maintain a moist wound surface environment by virtue of its water-locking ability. When in use, the chitosan layer 6 is in contact with the wound surface, and can exert the effects of chitosan to inhibit infection, promote wound healing and promote blood coagulation in the moist environment created by the absorption layer. The fixed layer 2 is covered with a protective layer 5, and the protective layer 5 is a sticker, which can effectively ensure that the medical effects of the absorbing layer 2 and the chitosan layer 6 are not infected.

Claims (5)

1. the medical sticker based on the moist environment maintenance technology of promoting wound healing is characterized in that: comprising a fixed layer, an absorption layer is provided on the fixed layer, a water-permeable film is compounded on the absorption layer, and chitosan is coated on the water-permeable film. The sugar layer and the chitosan layer are provided with a protective layer. 2. The medical sticker based on the moisturizing environment maintenance technology for promoting wound healing according to claim 1, wherein the absorption layer is located in the middle of the fixed layer, the area of the absorption layer is smaller than the area of the fixed layer, and the area of the water permeable film is the same as that of the fixed layer. The area of the absorption layer is the same, the area of the protective layer and the fixed layer are the same, and the protective layer and the fixed layer are connected. 3 . The medical patch based on the moist environment maintenance technology for promoting wound healing according to claim 1 or 2 , wherein the absorbent layer is made of superabsorbent fibers based on acrylic acid. 4 . 4 . The medical sticker based on the moist environment maintenance technology for promoting wound healing according to claim 1 or 2 , wherein through holes are uniformly distributed on the water-permeable membrane. 5 . 5 . The medical patch based on the moist environment maintenance technology for promoting wound healing according to claim 1 or 2 , wherein the length of the fixing layer is 5-30 cm, and the width of the fixing layer is 5-30 cm. 6 .

Images