Etienne L Pages

6629919, Oct 7, 2003

Jan 18, 2001

09/764702

Paul J. Vernucci - Billerica MA
Lelie E. Rose - Plainville MA
Etienne Pages - Braintree MA

Haemonetics Corporation - Braintree MA

B04B 104

494 36, 494 37, 494 67

The invention is directed to a centrifugation bowl with a rotating core. The centrifugation bowl includes a rotating bowl body which defines a primary separation chamber. The core, which is generally cylindrically shaped and is disposed within the bowl body, defines a secondary separation chamber. A stationary header assembly may be mounted on top of the bowl body through a rotating seal. The stationary header assembly includes an inlet port for receiving whole blood and an outlet port from which one or more blood components are withdrawn. The inlet port is in fluid communication with a feed tube that extends into the primary separation chamber. The outlet port is in fluid communication with an effluent tube that extends into the bowl body. The effluent tube includes an entryway at a first radial position relative to a central, rotating axis of the bowl. The core is arranged at a second radial position that is outboard from the entryway to the effluent tube and includes one or more core passageways for providing fluid communication between the primary and secondary separation chambers.

59549718, Sep 21, 1999

Jan 7, 1997

8/779912

Etienne Pages - Arlington MA
Alain Dransart - Gland, CH
Yair Egozy - Lexington MA
Yves Baratelli - Lully, CH

Haemonetics Corporation - Braintree MA

B01D 3700
B01D 3600

210739

Automated filtration of whole blood or blood components is accomplished in a manner that ensures consistent flow or pressure characteristics through the filter. A feedback circuit monitors pressure in the vicinity of the filter inlet and controls operation of a fluid pump that sends one or more unfiltered blood components into the filter. Using this arrangement, a variety of parameters relating to filtration efficacy can be precisely controlled, including flow rate, flow pressure, and average pressure over a predetermined volume. The system may provide an alarm or automatic cut-off in the event a maximum value of one of the parameters is reached or exceeded. The system is also capable of serially filtering multiple blood products through the single filter and accommodating different flow or pressure characteristics associated with each such product.