Resources Contact Us Home
Highly specific technique for discriminating atrial fibrillation from atrial flutter

Image Number 9 for United States Patent #7177682.

A cardiac rhythm management system including a highly sensitive technique for discriminating AF from AFL. An electrode disposed in or about a heart senses a cardiac signal. A controller through a sensing circuit receives the sensed cardiac signal from the electrode and processes the sensed cardiac signal to compute an average cycle length-to-cycle length variation based on serial interval relationships from the sensed cardiac signal, and then comparing the computed average cycle length-to-cycle length variation to one or more pre-determined threshold values to discriminate AF from AFL. As a result of substantial difference in cycle length-to-cycle length variation between AF and AFL (despite similar average cycle lengths), the sequence-based measure of cycle length-to-cycle length variability proves to be a highly specific and reliable discriminator of AF from AFL.

  Recently Added Patents
Collaborative data redundancy for configuration tracking systems
Apparatus for counting particles in a gas
Audit planning
Wireless device and communication control method
Label with surface ornamentation
Magnetoresistive shield with coupled lateral magnet bias
System and method for managing a loyalty program via an association network infrastructure
  Randomly Featured Patents
Advertisements on mobile devices using integrations with mobile applications
Path allocation system and method having double link list queues implemented with a digital signal processor (DSP) for a high performance fiber optic switch
Refrigerator having folding shelf
Drill insert geometry having V-notched web
Systems and methods for reducing mechanical sensitivity of phase sensitive optical signals
Plug-shaped press crown for a press assembly
Method of making product sampler
Method of suppressing mist formation from oil-containing functional fluids
Process for producing ultrathin homogenous metal layers
Image processing apparatus, image processing method, and program to execute image processing method