Medical polyurethane waterproof plaster

Abstract

The invention relates to a medical polyurethane waterproof plaster, which belongs to the field of medical plasters. The medical polyurethane waterproof plaster comprises a polyurethane film, a medicine layer, a waterproof film and a protecting film, a non-woven fabric is adhered on one side of the polyurethane film, the medicine layer is fixed on the non-woven fabric, the polyurethane film is weakly adhered with the protecting film by the aid of adhesive on the polyurethane film, and the waterproof film is arranged on the other side of the polyurethane film. The waterproof plaster has good watertightness and breathability characteristics, and can be used for making band-aids and sticking-plasters.

Description

technical field [0001] The invention relates to a polyurethane medical waterproof sticker, which belongs to the field of medical stickers. Background technique [0002] Medical stickers are disposable medical supplies, the most common ones are band-aids and plasters. Band-aid, also known as benzalkonium chloride paste, is the most commonly used surgical drug in people's lives. It has the functions of hemostasis and skin protection. Band-aids can compress and stop bleeding, protect wounds, prevent infection, and promote healing. At the same time, they have the advantages of small size, easy to use, easy to carry, good air permeability, and reliable curative effect. However, the adhesive plaster used in the Band-Aid has poor air permeability, and the water vapor and sweat normally secreted by the human body cannot penetrate this layer of adhesive plaster, so it has a soaking effect on the local skin, and the specific performance is that the local skin is wrinkled. Plaster...

AI Technical Summary

Problems solved by technology

The use period of the plaster is generally 3-7 days. During this period, the medicinal ingredients in the plaster can exert their therapeutic effects. However, due to the long-term coverage of the poorly air-permeable film, most patients have allergic reactions. It is necessary to remove the plaster and reapply the plaster after the allergy is relieved, and it usually takes 2-3 days. During this period, it not only delays the timely treatment of the disease, but also brings unnecessary pain to the patient.

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