Filtration device
AssigneeWarsaw Orthopedic, Inc.
InventorWilliam F. McKay
Life of this patent
Estimating the term…
Abstract
A device for separating particulate matter (e.g., cells) from a liquid including a housing defining an elongate chamber disposed between a receiving end and a dispenser end, a plunger slidably inserted within the chamber from the receiving end, an upper disc and a lower disc each independently slidably affixed to the plunger, the lower disc facing the dispenser end and including at least one filter arrangement, and a liquid including particulate matter disposed within the chamber when the upper disc and lower disc are in an aspiration mode. The upper disc is independently slidable with respect to the lower disc to achieve a filtration mode.
Claims20
A filtration device comprising:
- a housing defining a chamber disposed between a receiving end and a dispenser end;
- a plunger slidably inserted within the chamber from the receiving end;
- a first disc slidably affixed to the plunger;
- and a second disc slidably affixed to the plunger below the first sliding disc and facing the dispenser end, the second disc including at least one filter arrangement.
A device for separating particulate matter from a liquid comprising:
- a housing defining an elongate chamber disposed between a receiving end and a dispenser end;
- a plunger slidably inserted within the chamber from the receiving end;
- an upper disc and a lower disc each independently slidably affixed to the plunger, the lower disc facing the dispenser end and including at least one filter arrangement;
- a liquid including particulate matter disposed within the chamber when the upper disc and lower disc are in an aspiration mode;
- and a removable cap affixed to the dispensing end, wherein the lower disc is independently slidable with respect to the upper disc to achieve a filtration mode when the cap is affixed to the dispensing end.
A method for separating particulate matter from a liquid comprising:
- providing a housing defining an elongate chamber disposed between a receiving end and a dispenser end;
- providing a plunger slidably inserted within the chamber from the receiving end;
- providing an upper disc and a lower disc each independently slidably affixed to the plunger, the lower disc facing the dispenser end and including at least one filter arrangement;
- sliding the upper and lower discs upwards towards the receiving end for aspirating a liquid including particulate matter within the chamber;
- affixing a cap to the dispensing end;
- and sliding the lower disc downwards to achieve a filtration mode for separating the particulate matter from the liquid so as to cause the upper disc to slide toward the receiving end.
Dependencies are inferred from the claim text.