GB1132770A - Surgical drapes - Google Patents

Abstract

1,132,770. Surgical drape sheets. PARKE DAVIS & CO. 12 Sept., 1966 [7 Oct., 1965], No. 40662/66. Heading A5R. [Also in Division B5] A marginally reinforced surgical drape sheet comprises a sheet of thin flexible transparent plastics material having an adhesive layer on two opposite marginal edge portions and on a central portion, a reinforcing strip adhering to each adhesive marginal edge portion, and a protective backing removably adhering to, and substantially coextensive with, the central adhesive portion. As illustrated in Figures 1 and 2, plastics film or sheet 10 has applied thereto an adhesive layer 11 comprising edge portions 17, each of which is covered with a marginal reinforcing strip 13, and a central portion 18 which is covered with a protective backing 12 prior to use of the drape sheet on a patient, the opposite side edges 14 of the backing preferably being in juxtaposition with the inner edges 15 of the reinforcing strips and a small non-adhesive area 16 preferably being provided between the adhesive on each edge portion and the central portion of the plastics film. To facilitate removal, the protective backing preferably is provided with a small non-adhered lip 19 at each side edge opposite the adjacent reinforcing strip. Instead of there being a small gap between the protective backing and each reinforcing strip as illustrated, the backing may abut or slightly overlap each strip. The plastics film may be a laminate material, for example a polyethylene-paper or a vinyl-paper laminate, but preferably consists of polyvinyl chloride. The reinforcing strips and the protective backing may be made of a plastics material but preferably are of paper which may be coated, waxed or glassine paper. The protective backing must be released adhered to the plastics film; the reinforcing strips may only be temporarily adhered but preferably are permanently adhered to the film. Both the central portion and the marginal edge portions of the film preferably are coated with the same pressure sensitive adhesive. Temporary adherence of the backing may be obtained by use of a material for the backing which is releasable due to its composition or by coating either the pressure sensitive adhesive or the backing with a release agent; permanent adherence of the reinforcing strips may be obtained by the absence of such a-release agent. Alternatively, the marginal edge portions of the plastics film may be coated with a permanent adhesive. The drape sheet may be in rolled form with the reinforcing strips positioned at the inner and outer ends of the roll, the strip at the inner end of the roll preferably being rolled in a direction opposite to that of the remainder of the rolled sheet which preferably is rolled so that the protective backing is on the outside of the roll and the plastics film is on the inside of the roll. The rolled drape sheet may be provided in an individual package; the combination of rolled sheet and package may be sterilized, for example by steam. Reference has been directed by the Comptroller to Specification 1060814.