Dressings cut to shape alleviate facial tissue loads while using an oxygen mask
Dressings cut to shape alleviate facial tissue loads while using an oxygen mask
复制标题
DOI：
10.1111/iwj.13101
复制
发表时间：
2019-06-01
影响因子：
3.1
通讯作者：
Gefen, Amit
中科院分区：
文献类型：
--
作者：
Cohen, Lea Peko;Ovadia-Blechman, Zehava;Gefen, Amit
无创通气 (NIV) 面罩通常用于呼吸支持，可以避免插管或外科手术。然而，长时间使用 NIV 面罩会给面部组织带来风险，面部组织会因面罩拉紧和小气候条件而导致持续变形。通过在面罩-面部界面处提供额外的缓冲，可以降低发生此类与医疗设备相关的压疮的风险。在这项工作中，我们确定了使用 NIV 面罩时与不使用敷料切口时面部组织应力的差异（Mepilex Lite；Molnlycke Health Care，哥德堡，瑞典）。首先，我们开发了一种力测量系统，用于通过实验确定使用 NIV 面罩时健康样本组中鼻梁、脸颊和下巴皮肤上施加的局部力。我们使用红外热成像技术进一步展示了使用面罩后的面部温度分布。接下来，使用有限元方法，我们提供了模型中面部每个部位的测量压缩力，并比较了有敷料切口和没有敷料切口的面部组织中的最大有效应力。该敷料通过为面临风险的组织提供局部缓冲，在减轻面部组织变形和压力方面显示出显着的生物力学有效性。
Non-invasive ventilation (NIV) masks are commonly used for respiratory support where intubation or a surgical procedure can be avoided. However, prolonged use of NIV masks involves risk to facial tissues, which are subjected to sustained deformations caused by tightening of the mask and microclimate conditions. The risk of developing such medical device-related pressure ulcers can be reduced by providing additional cushioning at the mask-face interface. In this work, we determined differences in facial tissue stresses while using an NIV mask with versus without using dressing cuts (Mepilex Lite; Molnlycke Health Care, Gothenburg, Sweden). First, we developed a force measurement system that was used to experimentally determine local forces applied to skin at the bridge of the nose, cheeks, and chin in a healthy sample group while using a NIV mask. We further demonstrated facial temperature distributions after use of the mask using infrared thermography. Next, using the finite element method, we delivered the measured compressive forces per site of the face in the model and compared maximal effective stresses in facial tissues with versus without the dressing cuts. The dressings have shown substantial biomechanical effectiveness in alleviating facial tissues deformations and stresses by providing localised cushioning to the tissues at risk.