Folding fan catheter with electrodes
AssigneeBiosense Webster (Israel) Ltd.
InventorsChristopher Thomas BEECKLER, Assaf GOVARI, Joseph Thomas KEYES, Kevin Justin HERRERA
Life of this patent
Estimating the term…
Abstract
An apparatus includes a shaft and a folding fan catheter. The shaft is configured for insertion through a sheath into a cavity of an organ of a patient. The folding fan catheter is fixed to a distal end of the shaft and includes (a) a resilient foldable frame, which is fixed to the distal end of the shaft and is configured to be unfolded so as to assume a fan shape, (b) one or more flexible surfaces, coupled to the frame to form a fan-shaped surface when the frame is unfolded, and (c) a plurality of electrodes that are disposed over the one or more flexible surfaces and are configured to contact tissue.
Claims20
A catheter comprising:
- a shaft extending along a longitudinal axis from a proximal portion to a distal end;
- a plurality of frame members attached to the distal end, each frame member of the plurality of frame members extending along a respective longitudinal axis and comprising a proximal planar portion, a distal planar portion, and a twisted portion disposed therebetween, the twisted portion being twisted about the respective longitudinal axis;
- at least one membrane coupled to at least one of the frame members;
- and
- at least one electrode disposed on the at least one membrane.
A method, comprising:
- inserting into a cavity of an organ of a patient a catheter, the catheter comprising:
- a shaft extending along a longitudinal axis from a proximal portion to a distal end;
- a plurality of frame members coupled to the distal end of the shaft, each frame member of the plurality of frame members extending along a respective longitudinal axis and comprising a proximal planar portion, a distal planar portion, and a twisted portion disposed therebetween, the twisted portion being twisted about the respective longitudinal axis;
- a membrane coupled to at least one of the frame members;
- and
- at least one electrode disposed on the membrane;
- expanding the plurality of frame members, such that distal end of frame members are spaced apart from one another;
- contacting the at least one electrode to tissue of the organ;
- and
- performing a medical procedure using the at least one electrode.
A method, comprising:
- inserting into a cavity of an organ of a patient a catheter fixed to a distal end of a shaft, the catheter comprising:
- a plurality of frame members, each frame member of the plurality of frame members extending along a respective longitudinal axis and comprising a proximal planar portion, a distal planar portion, and a twisted portion disposed therebetween, the twisted portion being twisted about the respective longitudinal axis;
- at least one membrane coupled to at least one of the frame members;
- and
- at least two electrodes disposed on the at least one membrane;
- expanding the plurality of frame members, such that an inter-electrode spacing between the at least two electrodes is increased;
- contacting the at least two electrodes to tissue of the organ;
- and performing a medical procedure using the at least two electrodes.
Dependencies are inferred from the claim text.