IRRIGATED CATHETER TIP WITH TEMPERATURE SENSOR ARRAY

摘要

A medical probe includes an insertion tube having a distal end configured for insertion into a body of a patient and containing a lumen for conveying an irrigation fluid and an electrical conductor for conveying electrical energy. A conductive cap is attached to the distal end of the insertion tube and coupled electrically to the electrical conductor. The conductive cap has an outer surface perforated by multiple apertures and defines an inner cavity in fluid communication with the lumen of the insertion tube so as to permit the irrigation fluid from the lumen to flow out of the cap through the apertures. A plurality of temperature sensors are mounted within the conductive cap in thermal communication with the outer surface and are thermally insulated from the irrigation fluid in the inner cavity.

主权项

1. A medical probe, comprising:
an insertion tube having a distal end configured for insertion into a body of a patient and containing a lumen for conveying an irrigation fluid and an electrical conductor for conveying electrical energy; a conductive cap attached to the distal end of the insertion tube and coupled electrically to the electrical conductor, wherein the conductive cap has an outer surface perforated by multiple apertures and defines an inner cavity in fluid communication with the lumen of the insertion tube so as to permit the irrigation fluid from the lumen to flow out of the cap through the apertures; and a plurality of temperature sensors, which are mounted within the conductive cap in thermal communication with the outer surface and are thermally insulated from the irrigation fluid in the inner cavity.