Rapid infusion system
First Claim
1. A rapid infusion system for delivery of an infusium to a patient comprising:
- a. a pump assembly;
b. a fluid containment assembly comprising upstream conduit, downstream conduit and a self-leveling drip chamber therebetween that maintains an appropriate volume of infusium to avoid introduction of air in the downstream conduit, wherein the self-leveling drip chamber comprises;
i. a fluid well having a top and bottom;
ii. an inlet port in communication with the upstream conduit; and
iii. an outlet port in communication with the downstream conduit;
c. a vent cap in communication with the drip chamber;
d. a means for exerting a negative pressure in the drip chamber through the vent cap;
e. at least one fluid level sensor to detect fluid level in the fluid well; and
f. an automated controller that receives electronic signals from the at least one fluid level sensor and sends an electronic signal to the means for exerting a negative pressure to remove air from the fluid well through the vent cap as necessary to maintain a selected fluid volume in the drip chamber.
1 Assignment
0 Petitions
Accused Products
Abstract
A rapid infusion system for the intravenous delivery of fluids at standard and rapid flow rates. The system includes a pump assembly, a drive assembly to power the pump, and a fluid containment system that keeps the infused fluid out of direct contact with the pump assembly and that is preferably disposable and removable. In one embodiment the drive assembly includes a differential drive that interacts with more than one motor. In one embodiment, the pump assembly includes a roller pump and the pump chamber is a collapsible, preformed tube that is preferably attached to a pump cartridge frame. Optionally, the system includes a self-leveling drip chamber and the fluid containment system is disposable and includes a pump cartridge containing the drip chamber and the pump chamber, I.V. tubing, outlet infusion tubing, and a heater cartridge.
279 Citations
18 Claims
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1. A rapid infusion system for delivery of an infusium to a patient comprising:
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a. a pump assembly;
b. a fluid containment assembly comprising upstream conduit, downstream conduit and a self-leveling drip chamber therebetween that maintains an appropriate volume of infusium to avoid introduction of air in the downstream conduit, wherein the self-leveling drip chamber comprises;
i. a fluid well having a top and bottom;
ii. an inlet port in communication with the upstream conduit; and
iii. an outlet port in communication with the downstream conduit;
c. a vent cap in communication with the drip chamber;
d. a means for exerting a negative pressure in the drip chamber through the vent cap;
e. at least one fluid level sensor to detect fluid level in the fluid well; and
f. an automated controller that receives electronic signals from the at least one fluid level sensor and sends an electronic signal to the means for exerting a negative pressure to remove air from the fluid well through the vent cap as necessary to maintain a selected fluid volume in the drip chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification