Multipurpose catheter assembly
AssigneeInnercool Therapies, Inc.
InventorRandell Werneth
Life of this patent
Estimating the term…
Abstract
An apparatus for performing hypothermia of the body of a patient, or of a selected organ, while delivering a medicament to a selected blood vessel. A flexible coaxial catheter is inserted through the vascular system of a patient to place the distal tip of the catheter in a selected artery. A chilled fluid is pumped through an inner supply conduit of the catheter to cool a flexible heat transfer element in the distal tip of the catheter. The heat transfer element cools the blood flowing through the artery distal to the tip of the catheter. The medicament, such as a vaso-dilator, is delivered either separately or mixed with the chilled fluid, through a very small exit port in or near the heat transfer element.
Claims24
An apparatus for delivery of thermal treatment and medication to a selected area in the vascular system of a patient, comprising:
- an elongated flexible catheter assembly;
- a heat transfer element on a distal portion of said catheter assembly insertable to said selected area in said vascular system;
- a supply duct in said catheter assembly, said supply duct being in fluid flow communication with said heat transfer element, to supply a treatment fluid to said heat transfer element;
- a return lumen in said catheter assembly, said return lumen being in fluid flow communication with said heat transfer element, to receive said treatment fluid from said heat transfer element;
- and
- an exit port in fluid flow communication with said supply duct to allow a portion of said treatment fluid to exit said catheter assembly in the proximity of said heat transfer element.
An apparatus for delivery of thermal treatment and medication to a selected area in the vascular system of a patient, comprising:
- an elongated flexible catheter assembly;
- a heat transfer element on a distal portion of said catheter assembly insertable to said selected area in said vascular system;
- a temperature control lumen within said catheter assembly, said temperature control lumen being in fluid flow communication with said heat transfer element, to supply a temperature controlled fluid to said heat transfer element;
- a medicament delivery lumen within said catheter assembly, said medicament delivery lumen being in fluid flow communication with said distal portion of said catheter assembly, to deliver a medicament to said distal portion of said catheter assembly;
- a return lumen in said catheter assembly, said return lumen being in fluid flow communication with said heat transfer element, to receive said temperature controlled fluid from said heat transfer element;
- and
- an exit port in said distal portion of said catheter assembly, said exit port being in fluid flow communication with said medicament delivery lumen to allow said medicament to exit said catheter assembly in the proximity of said heat transfer element.
Dependencies are inferred from the claim text.