Device and systems for creating a variable flow interatrial shunt
AssigneeMedtronic, Inc.
InventorsJohn B. Horrigan, Brian D. Pederson, Kevin L. Sack
Life of this patent
Estimating the term…
Abstract
A medical device and method are described for creating a biostable shunt in a septal wall between a right atrium and a. left atrium of a heart. The medical device, such as an ablation device that includes an active portion, is advanced toward a septal wall of the heart such that the active portion is at least partially deflected by the septal wall. An electrical current is delivered to the active portion to provide an ablation of the septal wall from a cut, so as to form a single flap comprising the biostable shunt. The biostable shunt may provide variable flow based on the pressure differential between the right and left atrium.
Claims19
A medical device comprising:
- a catheter defining a lumen;
- and
- an electrosurgical device movable within the lumen and configured to extend distally outward from a distal end of the catheter, the electrosurgical device comprising at least one electrically conductive wire having an active portion configured to cut septal wall tissue when an electrical current is applied to the wire;
- wherein the active portion is configured to provide a cut so as to form a single flap comprising a biostable valvular shunt in the septal wall tissue.
A method of creating a biostable shunt in a septal wall between a right atrium and a left atrium of a heart, the method comprising:
- advancing an electrosurgical device towards the septal wall, the electrosurgical device including an active portion, wherein the active portion is at least partially deflected by the septal wall;
- and
- delivering an electrical current to the active portion to provide an ablation of the septal wall from a cut, so as to form a single flap comprising the biostable shunt.
Dependencies are inferred from the claim text.