Blood set priming method and apparatus
First Claim
1. The method of priming an extracorporeal blood set with physiological solution for use in a blood transporting process, which set comprises tubing having a patient connector on an end thereof, and a first branch tube in connection with a source of said solution, said branch tube connecting with said set between ends thereof;
- said branch tube connecting with further branch tubing having a second connector capable of sealing connection with said patient connector, each of said connectors having a minimum flow-through bore diameter of at least 2 mm.;
said method comprising the steps of;
connecting the patient connector and the second connector to form a closed loop of tubing;
passing said solution from said source in flow through said first branch tube and further branch tubing to fill them and said set tubing with said solution; and
disconnecting said patient connector for subsequent connection with the vascular system of a patient.
14 Assignments
0 Petitions
Accused Products
Abstract
An extracorporeal blood set may be primed with physiological solution for use in a blood transporting process such as hemodialysis. The set comprises tubing having a patient connector on an end thereof, and a first branch tube in connection with a source of the solution. The branch tube connects with the set between the ends of the set. The branch tube also connects with further branch tubing, having a second connector which is capable of sealing connection with the patient connector. The method comprises the steps of connecting the patient connector and the second connector to form a closed loop of tubing. One then passes the solution from the source in flow through the first branch tube and further branch tubing to fill them and the set tubing with the solution. One then disconnects the patient connector for subsequent connection with the vascular system of a patient.
91 Citations
10 Claims
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1. The method of priming an extracorporeal blood set with physiological solution for use in a blood transporting process, which set comprises tubing having a patient connector on an end thereof, and a first branch tube in connection with a source of said solution, said branch tube connecting with said set between ends thereof;
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said branch tube connecting with further branch tubing having a second connector capable of sealing connection with said patient connector, each of said connectors having a minimum flow-through bore diameter of at least 2 mm.; said method comprising the steps of;
connecting the patient connector and the second connector to form a closed loop of tubing;
passing said solution from said source in flow through said first branch tube and further branch tubing to fill them and said set tubing with said solution; and
disconnecting said patient connector for subsequent connection with the vascular system of a patient. - View Dependent Claims (2, 3, 4, 5, 6)
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7. The method of priming an extracorporeal blood set with physiological solution for use in a dialysis process, which set comprises tubing having a patient connector on the end thereof, and a first branch tube in connection with a source of said solution, said branch tube connecting with said set between ends thereof, said branch tube connecting with a further branch tubing having a second connector capable of sealing connection with said patient connector, each of said connectors having a minimum flow-through bore diameter of at least 2 mm;
said method comprising the steps of;
connecting the patient connector and the second connector to form a closed loop of tubing;
passing said solution from said source in flow through said first branch tube and further branch tubing to fill them and said set tubing with said solution, and further comprising the step of occluding flow through said first branch tube at a first point between said further branch tubing and said set tubing, to temporarily cause all of said solution flow from said solution source to pass through said further branch tubing, said patient connector, and then through said set tubing; and
disconnecting said patient connector for subsequent connection with the vascular system of a patient; and
further including the step of subsequently reconnecting the patient connector and said second connector, and again passing said physiological solution from said source in flow through said branch tube and further branch tubing to flush said set tubing with said solution.- View Dependent Claims (8, 9, 10)
Specification