| 摘要 |
<p>A bandage for laryngotomy patients comprises an air inlet portion having an outer fibrous layer consisting of a fibrous material designed and dimensioned to collect particles and bacteria without forming a substantial resistance to the flow of air inhaled therethrough, said inlet portion including an intermediate portion designed and mounted to permit a large surface contact with the inhaled air and made from a material having heat and moisture exchanging properties so that it receives heat and permits condensation of moisture from the expired air and transfers the received heat and moisture to the inhaled air. Said intermediate portion includes further an inner layer with an attachment means shaped to be placed into sealing engagement with the throat of the patient around the stoma and comprising a net located opposite the intermediate portion and of a relatively large width of the meshes and a stiffness suitable to protect the intermediate portion from deformation and preventing also its being sucked in by breathing.</p> |
