IMPLANTABLE SENSOR LEAD
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Accused Products
Abstract
In an implantable sensor lead for sensing mechanical cardiac activity of a heart, as well as a sensing method and a cardiac stimulator embodying such a sensor lead, multiple cardiac activity sensing elements are distributed along a portion of a length of the lead body of the implantable lead. The sensing elements sense or detect mechanical cardiac activity and respectively emit electrical signals corresponding to the detected mechanical cardiac activity. The delivery of cardiac stimulation pulses can be controlled dependent on an analysis of the detected mechanical cardiac activity.
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Citations
46 Claims
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1-23. -23. (canceled)
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24. An implantable sensor lead comprising:
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a lead body having a lead body length; and a plurality of mechanical cardiac activity sensing elements distributed along a portion of said lead body length that individually sense mechanical cardiac activity of the heart of a patient in whom the lead body is implanted, and that each emit an electrical signal corresponding to the mechanical cardiac activity sensed thereby, said plurality of mechanical cardiac activity sensing elements, in combination, sensing mechanical cardiac activity of the heart of the patient over an extended region of the heart substantially corresponding to said portion of said length of said lead body. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31)
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32. An electronic medical device comprising:
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an implantable sensor lead comprising a lead body having a lead body length, and a plurality of mechanical cardiac activity sensing elements distributed along a portion of said lead body length that individually sense mechanical cardiac activity of the heart of a patient in whom the lead body is implanted, and that each emit an electrical signal corresponding to the mechanical cardiac activity sensed thereby, said plurality of mechanical cardiac activity sensing elements, in combination, sensing mechanical cardiac activity of the heart of the patient over an extended region of the heart substantially corresponding to said portion of said length of said lead body; and a processor supplied with said signal emitted by said mechanical cardiac activity sensing elements, said processor analyzing said signals and identifying an attribute of said mechanical cardiac activity therefrom, and emitting a processor output signal indicative of said attribute. - View Dependent Claims (33, 34, 35)
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36. An implantable cardiac stimulator comprising:
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a pulse generator configured to deliver electrical stimulation pulses to the heart of a patient; an implantable sensor lead comprising a lead body having a lead body length, and a plurality of mechanical cardiac activity sensing elements distributed along a portion of said lead body length that individually sense mechanical cardiac activity of the heart of a patient in whom the lead body is implanted, and that each emit an electrical signal corresponding to the mechanical cardiac activity sensed thereby, said plurality of mechanical cardiac activity sensing elements, in combination, sensing mechanical cardiac activity of the heart of the patient over an extended region of the heart substantially corresponding to said portion of said length of said lead body; a processor supplied with said signal emitted by said mechanical cardiac activity sensing elements, said processor analyzing said signals and identifying an attribute of said mechanical cardiac activity therefrom, and emitting a processor output signal indicative of said attribute; and said processor being configured to control said stimulation pulse generator dependent on the detected and analyzed mechanical cardiac activity. - View Dependent Claims (37)
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38. A method for sensing mechanical cardiac activity of a heart comprising the steps of:
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implanting a sensor lead comprising a lead body having a length with a plurality of cardiac activity sensing elements distributed along a portion of said length; and sensing mechanical cardiac activity of the heart over an extended region of the heart, substantially corresponding to said portion of said length, using said plurality of mechanical cardiac activity sensing elements. - View Dependent Claims (39, 40, 41, 42, 43, 44, 45, 46)
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Specification