Automatic whole blood collection system
First Claim
1. Blood collection apparatus comprisinga pump unit, said unit includinga first pump head;
- a second pump head;
a gear reducer rotatably coupling the first and second pump heads so that when one of said pump heads is rotated, both pump heads rotate with a selected speed ratio;
motive means for rotating one of the pump heads, andmeans for releasably joining first and second tubes of a blood collection set in pumping relation with said first and second pump heads, respectively, so that when the tubes are joined with the pump heads and said motive means rotate said first pump head, fluid will flow through the first and second tubes at a volumetric ratio substantially equal to said speed ratio.
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Accused Products
Abstract
A whole blood collection system includes an automated pump/control unit and an accompanying disposable blood set. When combined and connected to a source of anticoagulant, these elements allow automatic priming of the blood set with anticoagulant and automatic collection of anticoagulated blood product according to three different collection modes. The unit'"'"'s pump and the blood set are specially designed to cooperate during the collection process to assure that the collected product has a precise blood to anticoagulant ratio. During the collection procedure, the pump/control unit automatically collects data relating to the procedure. Additional data specifically identifying components of the blood set, such as the blood collection bag, along with identification data on the donor'"'"'s registration form may be scanned into the pump/controller unit by a scanner associated with the unit; this facilitates positive sample identification and tracking. At the end of the procedure, a printer in the pump/controller unit automatically prints out this information so that a detailed record is immediately available about the collected blood product, the procedure for collecting it and the source of the product, i.e., the donor.
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Citations
26 Claims
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1. Blood collection apparatus comprising
a pump unit, said unit including a first pump head; -
a second pump head; a gear reducer rotatably coupling the first and second pump heads so that when one of said pump heads is rotated, both pump heads rotate with a selected speed ratio; motive means for rotating one of the pump heads, and means for releasably joining first and second tubes of a blood collection set in pumping relation with said first and second pump heads, respectively, so that when the tubes are joined with the pump heads and said motive means rotate said first pump head, fluid will flow through the first and second tubes at a volumetric ratio substantially equal to said speed ratio. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. Blood collection apparatus comprising
a housing having a top wall with an opening therein; -
first and second roller pump heads rotatably mounted in said housing, said pump heads being exposed in said opening; a speed reducer coupling the first pump head to the second pump head so that when one of the pump heads is rotated, the two heads rotate with a selected speed ratio; a platen movably mounted to said top wall adjacent to the opening therein, said platen being movable between a closed position wherein the platen is spaced opposite the pump heads and closes said opening and an open position wherein the platen is swung away from said opening thereby exposing said pump heads; means for releasably maintaining the platen in its said closed position; motive means in the housing for rotating one of the pump heads, and a programmable controller in the housing for controlling the motive means so that said one pump head is rotated at a selected speed within a selected speed range. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification