Catheter with helical electrode

摘要

An invasive probe includes an insertion tube containing a lumen for providing an irrigation fluid and comprising a distal portion having a plurality of perforations therethrough providing fluid communication between the lumen and an outer surface of the insertion tube. At least one helical electrode is fitted over the distal portion of the insertion tube.

主权项

1. A method for producing a medical device, comprising:
creating a plurality of perforations through an outer surface of a distal portion of an insertion tube containing a lumen and having an outer diameter, so as to provide fluid communication between the lumen and an outer surface of the insertion tube; cutting a metal tube into a spiral pattern to form at least one helical electrode, the helical electrode having an inner diameter slightly smaller than the outer diameter of the insertion tube; and after cutting the metal tube to form the at least one helical electrode, sliding said formed at least one helical electrode over the distal portion of the insertion tube; and affixing the at least one helical electrode to the outer surface of the distal portion of the insertion tube.