Patent ID: 6709377
Filing Date: 2004-03-23
Classification: B04B

Abstract:
A centrifugal device for liquids, such as blood, containing suspended particles, comprising:a first drive unit that is mounted and pivoting on a pivoting axis; a second drive unit that is mounted and pivoting coaxially to the first drive unit; devices to drive said first and said second drive units, with a rotational speed ratio of 2:1 between each other; a centrifugal unit for said liquid having a center, comprising at least three channels connecting the center to a peripheral separation chamber; and at least three tubes, each presenting a first extremity integral with a central extremity of a channel respectively of said centrifugal unit, with each tube forming an open loop around said centrifugal unit, with a portion of each loop kinematically integral with such second drive unit, with one of said tubes being connected to a supply source of said liquid to be centrifuged with at least one other used to recover a liquid component wherein: first coupling devices are integral with said first drive units; second coupling devices, said separation chamber and said channels are integral with said centrifugal unit; elastic devices are provided to exert an axial force that tends to engage, one with the other, said first and second coupling devices, so as to secure said centrifugal unit to first drive unit and said first and second coupling devices and said elastic devices are coaxially located to the pivoting axis of said first and second drive units with the ability to be displaced along said pivoting axis against the pressure of said elastic devices.