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1. (WO2013149175) NEEDLE FILTER APPARATUS

Pub. No.:    WO/2013/149175    International Application No.:    PCT/US2013/034653
Publication Date: Fri Oct 04 01:59:59 CEST 2013 International Filing Date: Sat Mar 30 00:59:59 CET 2013
IPC: A61M 5/31
Applicants: ZENPURE AMERICAS, INC.
Inventors: LIN, Zhenwu
ADRIAN, Kenneth, D.
RENFREW, Kenneth
ANDREWS, Jacob
Title: NEEDLE FILTER APPARATUS
Abstract:
Disclosed is a disposable needle filter apparatus with a universal truncated syringe-receiving neck to enable the filtration of fluids/solutions aspirated into a needle-bearing syringe. The apparatus includes a needle seal stopper and needle stop to create a substantially airtight chamber to facilitate fluid aspiration through an enclosed filter and into the syringe. In an alternative embodiment, the filter apparatus includes an extended syringe-receiving neck configured to receive a specifically sized syringe/needle combination. In a further embodiment, the receiving neck is constructed as a modular unit to allow for interchangeable necks to accommodate different needle and syringe sizes with different cross-sectional diameters. In a yet further embodiment, the neck is constructed with stepped tapered segments of serially larger cross-sectional diameters to accommodate differently sized syringes, in a still further embodiment, the apparatus includes an accessory needle secured to the apparatus inlet