Demountable, replaceable aspirating needle cartridge assembly

Details Demountable, replaceable aspirating needle cartridge assembly Demountable, replaceable aspirating needle cartridge assembly

G - Physics

01

N

G01N 35/10 (2006.01) A61B 5/155 (2006.01) G01N 1/00 (2006.01) G01N 35/00 (2006.01) A61B 5/14 (1990.01)

Patent

CA 2088682

2088682 9222798 PCTABS00018 An aspiration apparatus primarily including a biohazard-safe aspirating cartridge assembly (10) for use with material (63) which might be hazardous to humans. The cartridge assembly includes a longitudinally expandable and contractible washing chamber (16), within which a fluid aspirating needle (18) is longitudinally positioned. Opposite ends (88, 90) of the washing chamber are secured to a pair of telescopically slidable mounting members (12, 14), wich are pluggably mountable (102, 104) to an operably associated support (20). A locking element (96) surrounds one of the mounting members (12), for preventing accidental/premature telescoping. Intentional release of the locking element (96) enables the pair of slidable members (12, 14) to be telescoped together by drive means (118), causing the washing chamber (16) to contract, permitting the tip (75) of the aspirating needle to be extended out of the chamber, for penetration of an operably associated sealed container (63) of material, for example whole blood.

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