Medical pump filtration device, and methods of manufacture and use thereof
AssigneeSommetrics, Inc.
InventorsJerome K. Aarestad, William C. Paul, III, Stephen G. T. Maine
Life of this patent
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Abstract
The present invention relates to medical vacuum pump filtration devices configured to filter air being received by the pump. The filtration devices comprise a pump housing and a mounting cap which incorporates filtration capabilities that capture and or divert particulate matter and moisture away from a pump intake opening. The filtration cap can also include apertures for sensors contained within the vacuum pump housing and the filtration cap. Compliance features that ensure proper installation and use of the filtration device can be included.
Claims22
A vacuum pump filtration system comprising:
- a pump housing element comprising a vacuum pump;
- a filtration cap element comprising a filter membrane;
- an evacuation enclosure configured to mate with a portion of the human body and thereby create a chamber having an interior volume formed between the human body and the evacuation enclosure, the evacuation enclosure comprising an aperture to receive the pump housing element,
- wherein
- the filtration cap element comprises a mating surface configured to releasably engage with a receiving surface on the pump housing element to form an integral pump/filter unit,
- a wall portion of the pump housing element inserts through the aperture to position the receiving surface within the interior of the evacuation enclosure, and the mating surface of the filtration cap engages the receiving surface from within the interior of the evacuation enclosure such that an edge portion of the evacuation enclosure forming the aperture is entrapped between the pump housing element and the filtration cap element, thereby forming a substantially airtight seal of the aperture upon formation of the integral pump/filter unit, and
- upon sealing of the aperture by the integral pump/filter unit, the filter membrane is positioned such that air being removed by the vacuum pump from the interior volume within the chamber must pass through the filter membrane prior to reaching the vacuum pump.
Dependencies are inferred from the claim text.