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US 2002/0002394 A1Published application
Isolated selective organ cooling apparatus
AssigneeInnercool Therapies, Inc.
InventorJohn D. Dobak, III
Life of this patent
Estimating the term…
Abstract
A selective organ cooling device with a separate warming device for preventing secondary cooling which can result from cooling the selected organ. The cooling device applies cooling to the blood flowing in the feeder artery of the selected organ, while the body temperature control device warms the whole body either directly, or by warming blood returning to the heart from the selected organ, via a vein.
Claims9
A selective organ cooling system, comprising:
- a first flexible catheter insertable into an artery feeding a selected organ of a patient;
- a cooling element attached to a distal end of said first catheter;
- a second flexible catheter insertable into a vein returning blood from the selected organ;
- and
- a source of warm saline solution connectable in fluid flow communication with said second catheter, for infusion into the bloodstream of the patient to apply warming to the remainder of the patient's body, exclusive of the selected organ being cooled by said cooling element.
2 more elements
A selective organ cooling system, comprising:
- a first flexible catheter insertable into an artery feeding a selected organ of a patient;
- a cooling element attached to a distal end of said first catheter;
- a second flexible catheter insertable into a vein returning blood from the selected organ;
- a warming element attached to a distal end of said second catheter to apply warming to the remainder of the patient's body, exclusive of the selected organ being cooled by said cooling element;
- and
- a plurality of protrusions on the interior surface of said warming element, said plurality of interior protrusions being axially staggered along said interior surface to create turbulence in fluid within said warming element, said plurality of protrusions having a depth at least equal to the boundary layer thickness of flow within said warming element.
3 more elements
A selective organ cooling system, comprising:
- a first flexible catheter insertable into an artery feeding a selected organ of a patient;
- a cooling element attached to a distal end of said first catheter;
- a second flexible catheter insertable into a vein returning blood from the selected organ;
- a warming element attached to a distal end of said second catheter to apply warming to the remainder of the patient's body, exclusive of the selected organ being cooled by said cooling element;
- and
- a plurality of protrusions on the exterior surface of said warming element, said plurality of exterior protrusions being axially staggered along said exterior surface to create turbulence in surrounding fluid, said plurality of protrusions having a depth at least equal to the boundary layer thickness of flow in the vein.
3 more elements
A selective organ cooling system, comprising:
- a first flexible catheter insertable into an artery feeding a selected organ of a patient;
- a cooling element attached to a distal end of said first catheter;
- a second flexible catheter insertable into a vein returning blood from the selected organ;
- a heat transfer segment attached to a distal end of said second catheter to apply warming to the remainder of the patient's body, exclusive of the selected organ being cooled by said cooling element;
- and
- a helical ridge and a helical groove formed on the interior surface of said heat transfer segment to create turbulence in a working fluid within said heat transfer segment, said helical groove having a depth at least equal to the boundary layer thickness of flow within said heat transfer segment.
3 more elements
A selective organ cooling system, comprising:
- a first flexible catheter insertable into an artery feeding a selected organ of a patient;
- a cooling element attached to a distal end of said first catheter;
- a second flexible catheter insertable into a vein returning blood from the selected organ;
- a heat transfer segment attached to a distal end of said second catheter to apply warming to the remainder of the patient's body, exclusive of the selected organ being cooled by said cooling element;
- and
- a helical ridge and a helical groove formed on the exterior surface of said heat transfer segment to create turbulence in blood in the vein, said helical groove having a depth at least equal to the boundary layer thickness of flow in the vein.
3 more elements
Dependencies are inferred from the claim text.