Electrode lead and device for tissue stimulation and/or detection of tissue response
First Claim
1. A medical electrode comprising a piezoelectric element adapted for implantation in mechanical and electrical contact with body tissue, said piezoelectric element forming means for electrically and mechanically transferring energy between said piezoelectric element and said body tissue in a direction from said piezoelectric element to said tissue.
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Accused Products
Abstract
An implantable electrode for stimulating tissue has a piezoelectric electrode for electrically and mechanically stimulating tissue and for detecting electrical and mechanical evoked response of the stimulated tissue. An implantable lead and an implantable stimulation device employing such an electrode are described including diagnostic circuitry for making a diagnosis of the heart condition using such an electrode.
85 Citations
25 Claims
- 1. A medical electrode comprising a piezoelectric element adapted for implantation in mechanical and electrical contact with body tissue, said piezoelectric element forming means for electrically and mechanically transferring energy between said piezoelectric element and said body tissue in a direction from said piezoelectric element to said tissue.
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11. A medical electrode lead comprising:
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at least one electrical connector; a piezoelectric element adapted for implantation in mechanical and electrical contact with body tissue, said piezoelectric element forming transducer means for transferring electrical energy and mechanical energy between said piezoelectric element and said body tissue in a direction from said piezoelectric element to said tissue; at least one electrical conductor connecting said electrical connector and said piezoelectric element; and flexible electrical insulation covering said at least one electrical conductor. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A medical therapy administration device comprising:
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a piezoelectric element adapted for implantation in mechanical and electrical contact with body tissue, said piezoelectric element forming transducer means for transferring electrical energy and mechanical energy between said piezoelectric element and said tissue in a first direction from said piezoelectric element to said tissue and in a second direction from said tissue to said piezoelectric element; at least one electrical conductor having a first end connected to said piezoelectric element; electrical insulation surrounding said at least one electrical conductor and adapting said at least on electrical conductor for implantation in a subject; at least one electrical connector disposed at a second end of said electrical conductor, opposite from said first end; pulse generator means for emitting electrical stimulation pulses; detector means for receiving and analyzing signals from said body tissue; switching means for selectively connecting said pulse generator means and said detector means to said at least one electrical connector for transmitting said pulses to said piezoelectric element and for receiving said signals from said body tissue from said piezoelectric element; and a housing adapted for implantation in a subject containing said pulse generating means and said detector means. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25)
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Specification