Fluid Filtration Device and System

摘要

A medical fluid filter system is provided comprising a housing having: a liquid trap chamber having a volume; a filter media chamber; a filter media arranged within the filter media chamber; the liquid trap chamber having a liquid trap outlet port in fluid communication with the filter media chamber; the liquid trap outlet port configured and arranged within the liquid trap chamber to inhibit flow of liquid from the liquid trap chamber to the filter media chamber and configured and arranged to allow gas to flow from the liquid trap chamber to the filter media chamber; a filter system inlet passing through the housing for intake of fluid originating from a surgical site; and a filter system outlet passing through the housing for fluid exhaust.

主权项

1. A fluid filtration system for use during minimally invasive surgical procedures involving a surgical site having higher than ambient pressure, the system comprising:
a filter body with a site side and an outlet side; a flow selector disposed inside the body, the flow selector having a hollow body portion with an inlet defined therein; a filter holder disposed inside the filter body, the filter holder configured and arranged to receive filter media at a first end and having an upstanding hollow member at a second end for receiving the body of the flow selector, the hollow member having at least one opening defined therein such that rotation of the flow selector relative to the filter holder causes the at least one opening to align with a portion of the inlet in the flow selector to establish a pathway for fluid flow, the flow being adjustable depending on which portion of the inlet in the flow selector aligns with the at least one opening in the filter holder; a first fluid conduit extending between the surgical site and the site side of the filter body; a second fluid conduit removably attachable to the outlet side of the filter body such that the conduit can be configured and arranged to extend between the outlet side and a vacuum source, the vacuum source generating a pressure of approximately −100 to −600 mm Hg; a secondary filter configured and arranged to removably attach to the outlet side of the filter body, the secondary filter having one or more openings for releasing a filtered gas to atmosphere. wherein the fluid filtration system is capable of alternating between an active and passive configuration by removing the second fluid conduit and attaching the secondary filter.