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:
Sep. 07, 2010
Filed:
Dec. 23, 2004
Lars BO Poulsen, Helsingor, DK;
Bjarne Worsoe, Tikob, DK;
Morgens Kristensen, Helsingor, DK;
Per Ole Nielsen, Bronshoj, DK;
Hans Olsen, Horsholm, DK;
Lars Bo Poulsen, Helsingor, DK;
Bjarne Worsoe, Tikob, DK;
Morgens Kristensen, Helsingor, DK;
Per Ole Nielsen, Bronshoj, DK;
Hans Olsen, Horsholm, DK;
Coloplast A/S, Humlebaek, DK;
Abstract
An ostomy bag with a filter assembly having a gas filter and a pre-filter for preventing or delaying solid/semisolid matter and liquid from reaching the gas filter. The pre-filter is at least substantially flat and comprises a number of constrictions, such as ribs extending along and between two inner surface parts of the channel. These constrictions/ribs form narrower and wider passages where the gas may more quickly pass a narrow passage and where the wider passages tend to receive and hold the liquid, solid matter and semisolid matter. The constrictions may be provided as a single, monolithic element, such as an extruded element.