湿性愈合理论.pptVIP

亲水性纤维 特点： 吸收大量渗液，不浸渍伤口周围皮肤 与伤口紧密结合 吸收渗液凝胶状减轻疼痛 * 伤口愈合过程中的敷料选择 Inflammatory phase 炎症期 Maturation phase 成熟期（疤痕形成） Proliferative phase 增生期 第一阶段 第二阶段 第三阶段 水凝胶、泡沫、藻酸盐 水胶体、泡沫、藻酸盐 水胶体、传统敷料保护 谢谢！ * 由于伤口愈合理论的发展，带动了医疗市场中伤口护理产品的研发。目前市场上可供选择的伤口护理敷料主要有：传统敷料，即干性愈合方法中经常使用的；基于湿性愈合理论，出现了新一类的现代敷料，包括…..等几大类；同时，对于难愈性的伤口，还可以选择活性敷料。今天，我们探讨的重点将放在这几类敷料中（桔色字）。 * Regardless of what causes the wound, wounds heal in a predictable and timely fashion. The wound healing starts immediately when a wound occurs. Let’s se what happens! INTERACTION: mention the three phases and in short what happens. Click the first wound first and ask: What is this phase called? What happens in this phase? Inflammatory phase – bleeding is stilled, clot is formed, white blood cells enters and cleanse the wound up from necrotic tissue, bacteria Second picture the same questions Proliferation phase – fibroblasts forms collagen, new vessels are formed – granulation tissue is formed and epithelial cells comes from the edges and Third picture and the questions. Maturation phase – the tissue is remodelling to take back as much as possible strength. Remember they have had the time to study the skin and wound healing CD. Wound healing is often described by three phases. These phases do not occur in isolation, instead considerable overlap occurs between them and the time required by an individual wound to progress onto the next phase of healing is dependant on a variety of factors. As you know the healing process is a very complex physiological process that is dependant on a number of interrelated components. We will now take a closer look into what physiological events is characteristic for the different wound healing phases – the inflammatory, proliferative and maturation phases. 湿性愈合理论及现代伤口敷料 江苏省省级机关医院 ET 郑娟 主要内容 伤口愈合的病理生理 湿性愈合理念、优点 敷料的种类与特性 正常伤口 愈合过程 炎症期 修复期 （增生期） 成熟期 第一阶段：炎症期 主要参与的细胞： 血小板、嗜中性白细胞和巨噬细胞 细胞的活动现象：凝血、炎性反应 伤口的特征：红、肿、热、痛 持续时间：0-3天 炎 症 期 需清创伤口此期会持续1-5天；若感染或有坏死组织存在，则此期会延长，使伤口愈合延迟 在对抗感染的过程中，巨噬细胞