Blood product transfer system

• US 7,011,742 B2
• Filed: 08/28/2002
• Issued: 03/14/2006
• Est. Priority Date: 09/14/2001
• Status: Expired due to Fees

• Current Assignee: Velico Medical Inc
• Original Assignee: ZymeQuest, Inc.
• Inventors: Rosiello, Keith
• Primary Examiner(s): Cecil, Terry K.
• Application Number:
  US10/232,197
• Publication Number:
  US 20030052065A1
• Time in Patent Office: 1,294 Days
• Field of Search: 604/410, 604/140, 604/409, 604/6.11, 604/408, 604/411, 604/326, 210/109, 210/257.1, 210/416.1, 210/258, 383/906, 383/9, 383/37, 494/85, 494/45, 137/505.16, 141/114, 141/166, 141/10, 141/11, 141/237, 128/DIG.24, 222/207
• US Class Current: 210/109
• CPC Class Codes: A61M 1/02 Blood transfusion apparatus blood infusion by syringes A61M5/14
• CPC Class Codes: A61M 1/0209 Multiple bag systems for separating or storing blood components
• CPC Class Codes: A61M 1/0277 Frames constraining or supporting bags, e.g. during freezing
• CPC Class Codes: A61M 1/3622 with a cassette forming partially or totally the blood circuit
• CPC Class Codes: A61M 1/367 Circuit parts not covered by the preceding subgroups of group A61M1/3621
• CPC Class Codes: A61M 1/3693 using separation based on different densities of components, e.g. centrifuging
• CPC Class Codes: Y10S 383/906 Dispensing feature

Abstract

A system for transferring blood product between a blood storage bag and a processing bag. The system includes an airtight containment chamber for supporting therein one or more blood storage bags. A door is provided for access to the chamber and there is included an airtight fixture that allows tubing from the blood storage bag to exit the chamber. A fluid pump is coupled to the containment chamber for establishing either pressure or vacuum within the containment chamber. A controller controls the air pump to, in turn, control the transfer of a blood product.

Claims

1. A system for transferring blood product in either direction between a blood storage bag and a processing bag, said system comprising:

a first airtight containment chamber;

a second airtight containment chamber;

a hanger within each chamber supporting a plurality of blood storage bags in an upright position, each bag having tubing affixed at a bottom thereof;

an single airtight fixture included in a wall of each airtight chamber, the plurality of tubing from the blood storage bags exiting the chamber through said single airtight fixture;

a single fluid pump coupled to both airtight containment chambers for establishing one of pressure or vacuum within each airtight containment chamber to transfer blood product in either direction between the blood storage bags and processing bag; and

a controller for controlling at least said fluid pump to, in turn, control the transfer of blood product.

2. A system as in claim 1 wherein said processing bag is a centrifuge processing bag.

3. A system as in claim 2 wherein the bags are disposed in a position that allows for blood product flow due to pressure or vacuum without allowing a blockage to occur via a collapsed tube or blood storage bag.

4. A system as in claim 1 wherein said fluid pump comprises an air pump having a compressor for delivering either a pressure to either or both chambers or drawing a vacuum on either or both chambers.

5. A system as in claim 4 including a control solenoid circuit for selecting, in one state, pressure operation and in another state, vacuum operation.

6. A system as in claim 5 wherein said one and another states are mutually exclusive.

7. A system as in claim 1 further including a fluid control circuit that couples only one at a time of either pressure or vacuum to a respective chamber.

8. A system as in claim 7 wherein some of the bags in a respective chamber are subjected to pressure during a first time interval and other of the bags are subjected to vacuum during a second time interval.

9. A system as in claim 1 including an air control circuit coupled between the pump and the chambers for directing only pressure to one chamber and only vacuum to the other chamber.

10. A system as in claim 9 including a door on each chamber.

11. A system as in claim 10 wherein said chambers are separated by a dividing wall.