The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 29, 1977
Filed:
Mar. 26, 1976
Harry T Treace, Forest Hill, TN (US);
Richards Manufacturing Company, Inc., Memphis, TN (US);
Abstract
A device for use in evacuating waste fluid from a closed wound or the like in a patient's body. The evacuation device includes an expansible member enclosed within a substantially collapsible pouch having walls formed of an air- and liquid-impermeable material. At least one hollow tube is attached to the pouch in operative communication with the interior of the pouch so that when the end of the hollow tube opposite the pouch is positioned within a closed wound or the like and when the expansible member is compressed and subsequently released, suction is applied to the wound through the hollow tube as the expansible member and the pouch expand thereby drawing any waste fluid in the wound into the interior of the pouch. The expansible member may consist of a hydrophylic sponge so that when waste fluid is drawn into the interior of the pouch, the expansible member will swell as a result of the contact between it and the waste fluid. A compression sleeve may be provided for holding the expansible member and the pouch in a compressed condition until it is desired to use the evacuation device to evacuate waste fluid from a closed wound. A conveyor member is provided within the interior of the pouch for conveying waste fluid through the evacuation device and is particularly useful when the evacuation device is used in conjunction with a central vacuum unit.