Fluid delivery systems, devices, and methods for delivery of hazardous fluids

摘要

A catheter including an outer conduit and an inner conduit positioned within the outer conduit, the inner conduit having a smaller diameter that that of the outer conduit. A volume between the outer conduit and the inner conduit define a first lumen which may deliver a first fluid to a patient, and an inside diameter of the inner conduit defines a second lumen which may deliver a second fluid to the patient such that the fluid flow of the first fluid and the second fluid exiting the catheter has a flow profile where the first fluid surrounds the second fluid and the second fluid is prevented from contact with inner walls of a blood vessel of the patient in a vicinity of a tip of the catheter.

主权项

1. A catheter, comprising:
an outer conduit; and an inner conduit positioned within the outer conduit and having a diameter smaller than a diameter of the outer conduit, wherein a volume between the outer conduit and the inner conduit define a first lumen adapted to deliver a first fluid to a patient, and an inside diameter of the inner conduit define a second lumen adapted to deliver a second fluid to the patient such that a fluid flow of the first fluid and the second fluid exiting the catheter has a flow profile where the first fluid surrounds the second fluid and the second fluid is prevented from contact with inner walls of a blood vessel of the patient in a vicinity of a tip of the catheter, wherein the first fluid is saline and the second fluid is a hazardous pharmaceutical.