초록 ▼

A method and apparatus for detecting a cardiac event in a medical device that includes sensing cardiac signals from a plurality of electrodes, the plurality of electrodes forming a first sensing vector and a second sensing vector different from the first sensing vector, determining a characteristic

A method and apparatus for detecting a cardiac event in a medical device that includes sensing cardiac signals from a plurality of electrodes, the plurality of electrodes forming a first sensing vector and a second sensing vector different from the first sensing vector, determining a characteristic associated with cardiac signals sensed along the first sensing vector during a predetermined sensing window, determining the characteristic associated with cardiac signals sensed along the second sensing vector during the predetermined sensing window, comparing the determined characteristic associated with cardiac signals sensed along the first sensing vector and the determined characteristic associated with cardiac signals sensed along the second sensing vector, and delivering a therapy in response to the comparing.

대표청구항 ▼

We claim: 1. A method of treating a cardiac event with a medical device having therapeutic componentry and a plurality of electrodes, comprising:sensing cardiac signals from the plurality of electrodes, the plurality of electrodes forming a first sensing vector and a second sensing vector different

We claim: 1. A method of treating a cardiac event with a medical device having therapeutic componentry and a plurality of electrodes, comprising:sensing cardiac signals from the plurality of electrodes, the plurality of electrodes forming a first sensing vector and a second sensing vector different from the first sensing vector;determining a spectral width of the cardiac signals sensed by the first sensing vector during a predetermined sensing window and a spectral width of the cardiac signals sensed by the second sensing vector during the predetermined sensing window;determining a normalized mean rectified amplitude of the cardiac signals sensed by the first sensing vector during the predetermined sensing window and a normalized mean rectified amplitude of the cardiac signals sensed by the second sensing vector during the predetermined sensing window; anddelivering a therapy based, at least in part, on a relationship of one of the spectral width of the cardiac signals sensed by the first sensing vector and the spectral width of the cardiac signals sensed by the second sensing vector and one of the normalized mean rectified amplitude of the cardiac signals sensed by the first sensing vector and the normalized mean rectified amplitude of the cardiac signals sensed by the second sensing vector.