Cathrx Ltd

James Panos

Neil Lawrence Anderson

Evan Ka-Loke Chong

David Ogle

Zoran Milijasevic

Jose L Cincunegui

Evan Chong

Jose Luis Cincunegui

A catheter assembly comprises a first elongate tubular member having a proximal end portion defining a proximal end, a distal end portion having an opening therein and defining a distal end, and at least one lumen defined between the proximal end and the distal end. A second elongate tubular member has a proximal end portion defining a proximal end, a distal end portion defining a distal end, and at least one lumen defined between the proximal end and the distal end. The second elongate tubular member is received within the at least one lumen of the first elongate tubular member, such that the distal end portion of the second elongate tubular member projects from the opening in the distal end portion of the first elongate tubular member. An elongate, shape-imparting element is receivable in the at least one lumen of at least one of the first elongate tubular member and the second elongate tubular member. The shape-imparting element imparts a non-rectilinear shape to the distal end portion of at least one of the first elongate tubular member and the second elongate tubular member.

Catheter assembly

A catheter sheath for an irrigation catheter comprises an elongate member having a proximal end and a distal end and defining a lumen extending from the proximal end to the distal end. At least one electrode is arranged on the elongate member. A plurality of elongate elements are contained in the elongate member, the elongate elements comprising at least one electrical conductor and at least one element of a non-conductive material arranged adjacent the at least one electrical conductor to form at least one non-conductive region associated with the elongate member. At least one passage extends through a wall of the elongate member to intersect the non-conductive region and to be in communication with the lumen of the elongate member. The at least one passage has an outlet opening in, or adjacent, the at least one electrode.

Irrigation catheter and a method of fabricating

A catheter assembly comprises a first elongate tubular member having a proximal end portion defining a proximal end, a distal end portion having an opening therein and defining a distal end, and at least one lumen defined between the proximal end and the distal end. A second elongate tubular member has a proximal end portion defining a proximal end, a distal end portion defining a distal end, and at least one lumen defined between the proximal end and the distal end. The second elongate tubular member is received within the at least one lumen of the first elongate tubular member, such that the distal end portion of the second elongate tubular member projects from the opening in the distal end portion of the first elongate tubular member. An elongate, shape-imparting element is receivable in the at least one lumen of at least one of the first elongate tubular member and the second elongate tubular member. The shape-imparting element imparts a non-rectilinear shape to the distal end portion, of at least one of the first elongate tubular member and the second elongate tubular member.

A system for heating a site in a patient's body includes a transformer having a primary winding and a secondary winding, the secondary winding having at least one center tap to provide a patient reference and at least two sources of radio frequency (RF) energy, the two sources of RF energy being out of phase with each other. A group of electrodes is connected to the sources of RF energy provided by the secondary winding to be simultaneously energized. The arrangement is such that there are more active electrodes connected to one of the sources of RF energy than another of the sources of RF energy with the energy supplied to one active electrode being out of phase with the energy supplied to an adjacent active electrode.

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Kingsford, Australia

James Panos