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US 10,765,475 B2Granted
All-in-one spiral catheter
AssigneeBiosense Webster (Israel) Ltd.
InventorsAssaf Govari, Christopher Thomas Beeckler, Joseph Thomas Keyes, Kevin Justin Herrera
Life of this patent
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Abstract
Medical catheterization is carried out by introducing a catheter into a heart, sliding the catheter through a sheath that encloses a multi-electrode probe into a chamber of the heart. The sheath is retracted to expose the probe. As the sheath is retracted the exposed probe expands into a spiral configuration, and the electrodes contact the endocardial surface of the chamber at multiple contact points.
Claims13
A method of medical catheterization, comprising the steps of:
- introducing a multi-electrode catheter into a heart, sliding the catheter into a chamber of the heart through a sheath;
- retracting the sheath to expose the catheter;
- while retracting the sheath expanding the exposed catheter into a spiral configuration;
- contacting the expanded catheter to an endocardial surface of the chamber at multiple contact points,
- disposing a ring about a distal portion of a guide wire, the ring being freely slidable and rotatable on the guide wire;
- connecting the ring to a distal end of the catheter for insertion therewith into the chamber;
- and
- while retracting the sheath, rotating the catheter about the guide wire.
5 more elements
An apparatus for medical catheterization, comprising:
- an assembly adapted for introduction into a heart;
- and
- a catheter slidable through the assembly into a chamber of the heart, comprising:
- a sheath;
- and
- a multi-electrode probe movable through the sheath in a compact configuration, the probe having a distal end and a shape memory that urges the probe to assume an expanded spiral configuration when advanced beyond the sheath into the chamber, wherein the assembly further comprises:
- a guide wire;
- and
- a ring disposed about a distal portion of the guide wire, the ring being freely slidable and rotatable on the guide wire, and the ring being connected to the distal end of the probe for insertion therewith into the chamber.
6 more elements
Dependencies are inferred from the claim text.