Rapid solution administration set with integral heat exchanger
First Claim
1. A pump free intravenous set for the rapid infusion of physiologic solutions to treat a patient in hypovolemic shock comprisingan infusion line having means at its distal end for connecting the line to a venous pathway of the patient,inlet means mounted on the proximal end of the infusion line for connecting the line to a source of physiologic solution at a temperature below normothermic temperature,and a heat exchanger disposed in the infusion line through which the solution flows for heating the solution to place it a normothermic temperature,said infusion line, inlet means, means on the distal end of the line and the heat exchanger being sized to recieve and discharge said solution at a rapid rate to restore and maintain the normal circulating blood volume of a patient in hypovolemic shock, in response to a pressure head established by the difference in height of the proximal and distal ends of the infusion line.
1 Assignment
0 Petitions
Accused Products
Abstract
Apparatus for the rapid infusion of physiologic solutions into the human body which have been warmed by said apparatus to normothermic temperature. The apparatus includes an extracorporeal heat exchanger which warms cold bank blood and other physiologic solutions to normothermic temperature. Bank blood and blood products enter the apparatus through a filtered infusion line. Crystalloids and synthetic colloids enter the apparatus through an unfiltered infusion line. Bank blood, blood products, crystalloids, and synthetic colloids flow through PVC tubing, filtered drip chambers, and the extracorporeal heat exchanger at a rapid rate to restore and maintain the normal circulating blood volume of a patient in hypovolemic shock. The flow rate is regulated by PVC tube clamps and a fluid shut-off valve. The apparatus also embodies a macrodrip administration set for the infusion of drugs and other physiologic solutions at a slower infusion rate. Normothermic physiologic solutions are infused into the patient'"'"'s central venous blood pathway through a large-bore vein catheter.
58 Citations
14 Claims
-
1. A pump free intravenous set for the rapid infusion of physiologic solutions to treat a patient in hypovolemic shock comprising
an infusion line having means at its distal end for connecting the line to a venous pathway of the patient, inlet means mounted on the proximal end of the infusion line for connecting the line to a source of physiologic solution at a temperature below normothermic temperature, and a heat exchanger disposed in the infusion line through which the solution flows for heating the solution to place it a normothermic temperature, said infusion line, inlet means, means on the distal end of the line and the heat exchanger being sized to recieve and discharge said solution at a rapid rate to restore and maintain the normal circulating blood volume of a patient in hypovolemic shock, in response to a pressure head established by the difference in height of the proximal and distal ends of the infusion line.
Specification