US PATENT SUBCLASS 604 / 383
.~.~.~ Needled or punched layer


Current as of: June, 1999
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604 /   HD   SURGERY

317  DF  MEANS AND METHODS FOR COLLECTING BODY FLUIDS OR WASTE MATERIAL (E.G., RECEPTACLES, ETC.) {5}
358  DF  .~ Absorbent pad for external or internal application and supports therefor (e.g., catamenial devices, diapers, etc.) {13}
378  DF  .~.~ Containing layers having differing absorption characteristics (e.g., flow control, wicking, etc.) {3}
383.~.~.~ Needled or punched layer


DEFINITION

Classification: 604/383

Needled or punched layer:

(under subclass 378) Subject matter wherein a layer of the collecting means has been subject to the piercing action of a plurality of slender pointed rods, which do not remove material, or to the action of a pointed or hollow circular cutting tool, which removes material, for the purpose of either forming a channel or openings in said layer for the purpose of permitting speedier flow of body fluids between the various component layers.

(1) Note. Patents in this subclass disclose needling to facilitate interfiber connections between layers to permit wicking between the layers or the punching of holes on the

component layer surface to ensure the speedy removal of body fluids from the punched surface to permit rapid absorbency in a more absorbent layer.