| 摘要 |
1,167,345. Laminates. GENERAL ELECTRIC CO. 19 Aug., 1966 [27 Aug., 1965], No. 37155/66. Heading B5N. [Also in Division A5] A surgical bandage (for covering a wound area and adapted to be adhered to skin surface outside the wound area by an adhesive layer covering a portion of the bandage, the balance of the bandage being unadhered to the skin surface) comprises (a) a thin imperforate non-porous membrane impervious to liquids and infectious organisms and permeable to oxygen gas, nitrogen gas and water vapour, the membrane extending continuously over an area of the bandage defined by the adhesive layer, which layer is applied to the edges of the bandage in a closed circuit in order to provide a completely enclosed region upon adherence of the circuit of adhesive to a surface of skin and (b) at least one sheet of two-way stretchable porous material bonded to and supporting the membrane to urge the latter into conformity with body surfaces. The membrane is preferably made of a silicone rubber material, but may be made from a polyphenylene oxide. The porous backing material may be nylon, polyethylene terephthalate ("Dacron", Registered Trade Mark), polyethylene, cotton or linen. The adhesive, which is preferably disposed along all the edges of one side of the bandage, may be disposed on either the membrane side or the porous material side of the bandage. A removable protective backing of fibrous material, for example paper, may be applied to the adhesive side of the bandage. The adhesive, which may be a known material used with medical adhesive tapes, may be applied either to the edges of individual bandages cut from the backed membrane or to selected portions of the backed membrane prior to cutting to form individual bandages.
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