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US 9,750,567 B2Granted
Electrophysiology catheter for mapping and/or ablation
AssigneeBoston Scientific Scimed, Inc.
InventorsGary S. Falwell, Steven J. Burns, Charles A. Gibson, David MacAdam, Nickolas G. Davis
Life of this patent
Estimating the term…
Abstract
The present invention encompasses apparatus and methods for mapping electrical activity within the heart. The present invention also encompasses methods and apparatus for creating lesions in the heart tissue (ablating) to create a region of necrotic tissue which serves to disable the propagation of errant electrical impulses caused by an arrhythmia.
Claims20
A catheter comprising:
- a handle;
- a flexible shaft having a longitudinal axis coupled to the handle;
- a tip assembly formed of more than one section that are bonded together, wherein a proximal end of the tip assembly is attached to a distal end of the flexible shaft, wherein a material of at least one section of the more than one section is less stiff than the stiffness of the flexible shaft and wherein the tip assembly includes a bend of approximately 90° relative to the longitudinal axis of the shaft, and wherein a distal end of the tip assembly includes an arcuate curve;
- a first pull cable anchored proximal to the tip assembly, the first pull cable being configured to steer the tip assembly, in a plane perpendicular to the longitudinal axis of the shaft;
- and
- a second pull cable anchored at the distal end of the tip assembly and configured to adjust a diameter of the arcuate curve.
3 more elements
A catheter comprising:
- a handle;
- a flexible shaft having a proximal end, a distal end, and a longitudinal axis, the proximal end of the flexible shaft coupled to the handle;
- a tip assembly formed of a proximal section and at least one other section that are bonded together, wherein the proximal section is attached to the distal end of the flexible shaft and has approximately the same outer diameter as the flexible shaft, and wherein the proximal section includes a bend of approximately 90° relative to the longitudinal axis of the shaft, and a distal section of the tip assembly is biased into an arcuate curve;
- a first pull cable anchored proximal to the tip assembly, the first pull cable being configured to rotate the tip assembly in a plane perpendicular to the longitudinal axis of the flexible shaft;
- and
- a second pull cable anchored at the distal end of the tip assembly and configured to adjust a diameter of the arcuate curve.
3 more elements
A catheter comprising:
- a handle;
- a flexible shaft having a longitudinal axis coupled to the handle;
- a tip assembly formed of a proximal section, an intermediate section and a distal section that are bonded together, wherein the proximal section is attached to a distal end of the flexible shaft, wherein the intermediate section has a diameter that is smaller than the diameter of the proximal section and wherein the proximal section includes a bend of approximately 90° relative to the longitudinal axis of the shaft, and a distal end of the tip assembly including an arcuate curve;
- a first cable anchored proximal to the tip assembly, the first cable being configured to steer the tip assembly in a plane perpendicular to the longitudinal axis of the shaft;
- and
- a second cable anchored at the distal end of the tip assembly and configured to adjust a diameter of the arcuate curve.
3 more elements
Dependencies are inferred from the claim text.