Surgery – Means for introducing or removing material from body for... – Treating material applied to or removed from external...
Reexamination Certificate
2005-12-27
2005-12-27
Schwartz, Larry I. (Department: 3761)
Surgery
Means for introducing or removing material from body for...
Treating material applied to or removed from external...
C604S327000, C604S543000
Reexamination Certificate
active
06979324
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 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.
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Biggie John J.
Biggie Lydia B.
Bybordi Farhad
Dawson John A.
Bogart Michael G.
Jenkens & Gilchrist
NeoGen Technologies, Inc.
Schwartz Larry I.
LandOfFree
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