Patent ID: 8518349

Claim:
A kit comprising a filtration syringe ( 100 ) comprising, a syringe body ( 200 ) having a longitudinal axis (A) and at least one syringe body sidewall ( 205 ) cooperating with an axially disposed movable first plunger body ( 300 ) having a fluid filtering barrier comprised of a semi-permeable membrane ( 310 ) movable within the syringe body ( 200 ) in an axial direction to enclose a first variable chamber ( 220 ), having a first chamber volume in interruptible fluid communication with an external instrumentality (I) through an instrument aperture ( 210 ); wherein the first movable plunger body ( 300 ) has at least one first plunger body sidewall ( 305 ) enclosing a second chamber ( 320 ) having a second chamber volume, and the first variable chamber ( 220 ) is in fluid communication with the second chamber ( 320 ) by means of the fluid filtering barrier ( 310 ) such that fluid contained within the first variable chamber ( 220 ) may transit the fluid filtering barrier ( 310 ) into the second chamber; and an attachable mixing chamber comprising at least one mixing chamber sidewall ( 505 ) enclosing a mixing chamber volume said mixing chamber attachable to said filtration syringe at said instrument aperture ( 210 ), and in fluid communication with the first variable chamber ( 220 ) through a mixing chamber-syringe aperture ( 520 ) and in fluid communication with the external instrumentality ( 1 ) through a mixing chamber-instrument aperture ( 510 ), wherein the mixing chamber sidewall ( 505 ) has at least one laminar flow disrupting feature ( 530 ).