Resources Contact Us Home
System and method for setting atrioventricular pacing delays based on far-field atrial signals

Image Number 5 for United States Patent #8131361.

An intrinsic inter-atrial conduction delay is determined by a pacemaker or implantable cardioverter-defibrillator based, at least in part, on far-field atrial events sensed using ventricular pacing/sensing leads. An atrioventricular pacing delay is then set based on the inter-atrial conduction delay. By detecting atrial events using ventricular leads, rather than using atrial leads, a more useful measurement of the intrinsic inter-atrial conduction delay can be obtained. In this regard, since atrial electrodes detect atrial activity locally around the electrodes, a near-field atrial event sensed using an atrial electrode might not properly represent the actual timing of the atrial event across both the right and left atria. Far-field atrial events sensed using ventricular leads thus allow for a more useful measurement of inter-atrial conduction delays for use in setting atrioventricular pacing delays. The delivery of individual V-pulses to the heart of the patient may be timed relative to the ends of individual far-field atrial events.

  Recently Added Patents
Medical capsule housing formed by thermal welding
Channel marking for chip mark overflow and calibration errors
Performing a cyclic redundancy checksum operation responsive to a user-level instruction
Wind turbine
Pointing device, display apparatus and pointing system, and location data generation method and display method using the same
Delay interferometer using magneto-optic effect of a variable faraday rotator
Process information structuring support method
  Randomly Featured Patents
Axial flow apparatus with rotating helical chamber and spindle members
Filler reinforced thermoplastic compositions and process for manufacture
Method for detecting stationary object located above road
Shoe drying apparatus
Wireless telephone
Built-in light
Distributed active vibration control systems and rotary wing aircraft with suppressed vibrations
Mobile station operating in an analog mode and for subsequent handoff to another system
Process for preparing a self-reinforced thermoplastic composite laminate
Bifunctional histone deacetylase inhibitors