US 12,269,028 B2
Vented dual port centrifuge tube
Patrick Pennie, Fort Myers, FL (US)
Filed by Patrick Pennie, Fort Myers, FL (US)
Filed on Jan. 21, 2022, as Appl. No. 17/580,894.
Claims priority of provisional application 63/139,934, filed on Jan. 21, 2021.
Prior Publication US 2022/0226811 A1, Jul. 21, 2022
Int. Cl. B01L 3/00 (2006.01)
CPC B01L 3/5021 (2013.01) [B01L 2200/0684 (2013.01); B01L 2200/0689 (2013.01); B01L 2300/0681 (2013.01); B01L 2300/0832 (2013.01); B01L 2400/0409 (2013.01); B01L 2400/0478 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A vented dual port centrifuge tube for separating and aspirating constituent components of a fluid biological product, the vented dual port centrifuge tube comprising:
a receptacle having upper and lower end portions and an interior chamber extending between said upper and lower end portions;
a liquid impermeable piston mounted within said receptacle and sealably engaging an interior side wall of said receptacle, said chamber consisting of a single upper region and a single lower region, which upper and lower regions are separated by said piston, said upper region located above said piston and extending from a top of said piston to said upper end portion of said receptacle, said lower region located below said piston and extending from a bottom of said piston to said lower end portion of said receptacle, said piston being movable through said chamber between said upper and lower end portions;
a first common inlet and outlet port formed in said upper end portion of said receptacle, said first common inlet and outlet port adapted to selectively introduce the fluid biological product exclusively into said upper region of said chamber and aspirate a first constituent component of the fluid biological product from said upper region of said chamber after said receptacle is centrifuged a first time to separate the first constituent component from the fluid biological product;
a second common inlet and outlet port formed in said lower end portion of said receptacle, said second common inlet and outlet port adapted to selectively introduce the aspirated first constituent component into said lower region of said chamber and aspirate a second constituent component from said lower region of said chamber after said receptacle is centrifuged a second time to separate the second constituent component from the first constituent component;
a vent formed through said upper end portion of said receptacle; and
a vent pipe attached to said vent and engaging said piston, said vent pipe communicably interconnecting said vent exclusively with said lower region of said chamber, whereby air pressure exclusively in said lower region of said chamber is equalized through said vent pipe and said communicably interconnected vent when the fluid biological product is introduced into said upper region of said chamber, when the first constituent component is respectively aspirated from said upper region and introduced into said lower region of said chamber, and when the second constituent component is aspirated from said lower chamber region.