Surgical sponge and method of forming the same
AssigneeAmerican Hospital Supply Corporation
InventorJames A. Shiff
Life of this patent
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Abstract
A surgical sponge or dressing having an absorbent core enclosed within first and second low-linting porous outer layers. The periphery of the core layer is wrapped within the fold of the reverted edge portion of the first outer layer, and the edge portion of the second outer layer is also reverted and is secured directly to the reverted edge portion of the first layer. The periphery of the core is thereby fully enclosed and the reverted edge portions of the outer layers result in a sponge or dressing having a relatively non-abrasive or atraumatic peripheral construction. The method of forming the improved sponge is also disclosed.
Claims14
A surgical sponge or dressing comprising an absorbent planar core layer interposed between a pair of porous and substantially non-linting outer layers, said outer layers having reverted peripheral edge portions extending about the entire perimeter of said sponge, said reverted edge portions of the respective outer layers being in continguous relation with each other and being disposed only on one side of said core layer, said core layer having a reverted peripheral portion received within the fold of the reverted peripheral edge portion of one of said outer layers, and means directly securing the reverted edge portion of said outer layers and the reverted peripheral portion of said core layer together, said core layer having substantial surface portions thereof unsecured to said outer layers.
A method of making surgical sponge or dressing having an absorbent core disposed between first and second porous outer layers, comprising the steps of arranging said core and said outer layers, all of substantially the same planar dimensions, in juxtaposition to form an arrangement wherein said first outer layer is disposed between said core and said second outer layer and all of said layers are unsecured to each other;
- then securing the edge portions of all three layers together along a major part of the total perimeter thereof while leaving said outer layers unsecured along a minor part of said total perimeter;
- then reverse folding said layers through the gap defined by the unsecured outer layers to position said outer layers on opposite sides of said core, thereby reverting the edge portions of said outer layers and folding the edge portion of said fibrous core within the fold defined by the reverted edge portion of said first outer layer;
- and subsequently joining said layers together to close said gap.
Dependencies are inferred from the claim text.