Closed wound drainage system Number:7,520,872 from the United States Patent and Trademark Office (PTO) owispatent

Title: Closed wound drainage system

Abstract: A portable closed wound drainage system that uses a pouch shaped dressing which is inserted into a wound. At least a portion of the outer surface of the pouch 1 is porous to allow exudates to enter. Exudates are removed from the pouch by flexible tubing which is secured inside the pouch at one end, and secured at the other end to a portable drain/suction unit. The pouch contains porous material, and may optionally contain beads and fillers which are antibacterial in nature. The tubing can have a single or multi-lumen structure with perforations in the side walls of the end of the tube that is inserted in the pouch to allow body fluids to enter laterally. The portable drain/suction unit is preferably a portable battery powered device. The pouch and the tube are sealed by a flexible sealing material which is applied to the outer surface of the skin around the periphery of the pouch and the tubing as it exits the pouch. This sealing material is preferably a hydro-colloid, a silicone, or a lyogel, such as a hydrogel, which are easily deformable. A cosmetic cover sheet is attached to the patient's skin over the closed wound drainage system.

Patent Number: 7,520,872 Issued on 04/21/2009 to Biggie,   et al.

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Inventors:	Biggie; John J. (Lighthouse Point, FL), Biggie; Lydia B. (Lighthouse Point, FL), Dawson; John A. (Dallastown, PA)
Assignee:	NeoGen Technologies, Inc. (Coral Springs, FL)
Appl. No.:	10/909,222
Filed:	July 30, 2004

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Related U.S. Patent Documents

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	Application Number	Filing Date	Patent Number	Issue Date
	10243004	Sep., 2002	6979324
	60481977	Jan., 2004
	60481165	Jul., 2003

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Current U.S. Class:	604/319 ; 601/6; 604/305; 604/313; 604/543
Current International Class:	A61F 13/00 (20060101); A61H 7/00 (20060101); A61M 1/00 (20060101); A61M 27/00 (20060101)
Field of Search:	604/289,290,304,305,313,315,316,540,543,317,319,322,327,332,334,336,356 601/6-14

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