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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0976854 (1997-11-24) |
발명자 / 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 | 피인용 횟수 : 581 인용 특허 : 20 |
A closed-loop, variable-frequency, vagal-stimulation apparatus for control of ventricular rate during atrial fibrillation. In one embodiment the apparatus includes a stimulator applied to the left vagus nerve and a controller programmed to automatically and continuously adjust the vagal stimulation
A closed-loop, variable-frequency, vagal-stimulation apparatus for control of ventricular rate during atrial fibrillation. In one embodiment the apparatus includes a stimulator applied to the left vagus nerve and a controller programmed to automatically and continuously adjust the vagal stimulation frequency as a function of the difference between actual and desired ventricular excitation rates. In a second embodiment the apparatus includes a vagal nerve stimulator and a controller which automatically adjusts the vagal stimulation frequency as a function of the difference between ventricular excitation rate and arterial pulse rate in order to eliminate or minimize pulse deficit.
[ We claim:] [1.] A closed-loop, variable-frequency, vagal-stimulation apparatus for control of ventricular rate during an ongoing atrial arrhythmia, comprising:means for detecting an atrial arrhythmia;means for sensing ventricular excitation rate;means responsive to detection of said atrial arrhyth
[ We claim:] [1.] A closed-loop, variable-frequency, vagal-stimulation apparatus for control of ventricular rate during an ongoing atrial arrhythmia, comprising:means for detecting an atrial arrhythmia;means for sensing ventricular excitation rate;means responsive to detection of said atrial arrhythmia for generating pulses for stimulation of the left vagus nerve at a stimulation frequency which is variable automatically as a function of the difference between actual and desired ventricular excitation rates, said adjusting means including means for changing said vagal stimulation frequency by a greater amount for one value of said ventricular rate difference than for a smaller value of said ventricular rate difference; andmeans for delivering said pulses to said left vagus nerve.
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