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US 2017/0245927 A1Published application
Catheter with perforated tip
AssigneeBiosense Webster, Inc.
InventorsAssaf Govari, Athanassios Papaioannou, Andres Claudio Altmann
Life of this patent
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Abstract
A medical device includes an insertion tube, having a distal end for insertion into a body of a subject. A distal tip is fixed to the distal end of the insertion tube and is coupled to apply energy to tissue inside the body. The distal tip has an outer surface with a plurality of perforations through the outer surface, which are distributed circumferentially and longitudinally over the distal tip. A lumen passes through the insertion tube and is coupled to deliver a fluid to the tissue via the perforations.
Claims12
A medical device, comprising:
- an insertion tube, having a distal end for insertion into a body of a subject at a treatment area;
- a conductive hollow distal tip having a length and a thickness between an inner surface and an outer surface, the conductive hollow distal tip being fixed to the distal end of the insertion tube and coupled to a generator, the conductive hollow distal tip and the generator being configured to directly apply energy to tissue at the treatment area inside the body, and wherein the conductive hollow distal tip has a distribution of perforations that extend from the inner surface to the outer surface, and wherein at least a portion of the perforations are circumferentially and longitudinally arranged over the outer surface of the hollow distal tip and sized and configured to ensure equal flow of a cooling fluid over the entire length of the conductive hollow distal tip while not overloading the treatment area with the cooling fluid;
- and
- a lumen passing through the insertion tube and coupled to deliver the cooling fluid to the tissue at the treatment area via the perforations.
1 more element
A medical apparatus, comprising:
- an elongate probe, for insertion into a body of a subject, the elongate probe comprising:
- an insertion tube, having a distal end for insertion into the body;
- a conductive hollow distal tip having a length and an inner and outer surface, which is fixed to the distal end of the insertion tube and is coupled to an energy generator to directly apply energy to tissue inside the body at a treatment area, and which has a distribution of a plurality of perforations distributed through the conductive hollow distal tip, and wherein at least a portion of perforations are circumferentially and longitudinally arranged over the outer surface of the conductive hollow distal tip and sized and configured to ensure equal flow of a cooling fluid over the entire length;
- a lumen passing through the insertion tube and in fluid communication with the distribution of the perforations;
- and
- an irrigation pump, for coupling to the lumen so as to supply the cooling fluid via the lumen and the distribution of the perforations to the tissue.
3 more elements
Dependencies are inferred from the claim text.