Irrigated catheter
AssigneeSt. Jude Medical, Atrial Fibrillation Division, Inc.
InventorsCarlo Pappone, Alan de la Rama, Peter Chen, Cary Hata
Life of this patent
Estimating the term…
Abstract
A fluid delivery catheter configured to allow optimal fluid distribution through each electrode by varying the diameter of a catheter lumen is disclosed. Uniform or different fluid flow rates through longitudinally spaced apart elution holes may be achieved. Exemplary fluids for use with the catheter include a cooling fluid, a therapeutic fluid, and a medication.
Claims20
A tip portion for a catheter, the tip portion comprising a first band electrode having a sidewall, a second band electrode having a sidewall, and an internal lumen, each of the first band electrode and the second band electrode comprising a plurality of elution holes extending through the respective sidewalls and being spaced apart from one another along a longitudinal length of the tip portion, the tip portion further comprising a plurality of longitudinally spaced ducts in fluid communication with the lumen, each of the longitudinally spaced ducts extending from the lumen to a respective one of the plurality of elution holes, wherein a diameter of the lumen is varied between at least two of the longitudinally spaced ducts.
An irrigated catheter comprising:
- a catheter body comprising a distal region including a terminal end, a longitudinal axis, a first band electrode, and a second band electrode, each of the first band electrode and the second band electrode comprising a sidewall;
- and
- an irrigation path extending through the distal region, the irrigation path comprising:
- a fluid delivery lumen extending along the longitudinal axis;
- and
- a first plurality of elution holes extending through the first band electrode sidewall and a second plurality of elution holes extending through the second band electrode sidewall, each elution hole of the first plurality of elution holes and the second plurality of elution holes in fluid communication with the fluid delivery lumen, wherein a diameter of the fluid delivery lumen is varied between a first elution hole of the first plurality of elution holes and a second elution hole of the second plurality of elution holes.
An irrigated catheter comprising:
- a catheter body including a first band electrode, a second band electrode and a lumen, each of the band electrodes including a sidewall, the catheter body defining a longitudinal axis;
- and
- a first plurality of elution holes extending through the first band electrode sidewall and in fluid communication with the lumen, and a second plurality of elution holes extending through the second band electrode sidewall and in fluid communication with the lumen, wherein a diameter of the lumen is varied between a first elution hole of the first plurality of elution holes and a second elution hole of the second plurality of elution holes.
Dependencies are inferred from the claim text.