Bipolar body tissue electrode
First Claim
1. A heart tissue implantable bipolar electrode assembly for disposition within a living animal comprising:
- a. first and second insulated, flexible conductors, each having a proximal end adapted to be connected to an energizing source and a distal end;
b. a first conductive, rigid, helically-shaped electrode adapted to be rotatively inserted within the tissue and having a proximal end electrically connected to said distal end of said first conductor;
c. an inert insulating covering disposed about said first electrode leaving a limited portion thereof exposed;
d. a second conductive, annularly-shaped electrode disposed about said first electrode and being electrically connected to said distal end of said second conductor, said second electrode having a substantially flat surface adapted for intimate contact with the tissue; and
e. insulating housing means for mounting said second electrode in a spaced, insulated manner with respect to said first electrode and to dispose said limited portion of said first electrode in a spaced relationship from said flat surface so that said first electrode may be fully inserted within the tissue and said second electrode be in electrical contact with the surface of the tissue, whereby a relatively intense electrical field is established through the tissue between said exposed portion of said first electrode and said second electrode.
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Accused Products
Abstract
A bipolar electrode of the type adapted to be electrically and physically coupled to a body tissue is disclosed as comprising a helix-configured electrode to be screwed into the body tissue and an annular-shaped electrode disposed about the helical electrode for surface contact with the tissue, and first and second flexible electrodes coupled respectively to the aforementioned electrodes. Each of the flexible electrodes has a proximal end adapted for connection to a power supply and a distal end portion for connection to the one of the aforementioned electrodes. The helix-configured electrode is partially covered with an inert insulating material with the tip of the helical electrode being exposed. The annular-shaped electrode is disposed about the helical electrode whereby an intense field is formed between the annular-shaped electrode and the exposed tip of the helical electrode, thus insuring efficient stimulation of the tissue and minimum current drainage of the power supply, e.g. a battery.
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Citations
14 Claims
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1. A heart tissue implantable bipolar electrode assembly for disposition within a living animal comprising:
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a. first and second insulated, flexible conductors, each having a proximal end adapted to be connected to an energizing source and a distal end; b. a first conductive, rigid, helically-shaped electrode adapted to be rotatively inserted within the tissue and having a proximal end electrically connected to said distal end of said first conductor; c. an inert insulating covering disposed about said first electrode leaving a limited portion thereof exposed; d. a second conductive, annularly-shaped electrode disposed about said first electrode and being electrically connected to said distal end of said second conductor, said second electrode having a substantially flat surface adapted for intimate contact with the tissue; and e. insulating housing means for mounting said second electrode in a spaced, insulated manner with respect to said first electrode and to dispose said limited portion of said first electrode in a spaced relationship from said flat surface so that said first electrode may be fully inserted within the tissue and said second electrode be in electrical contact with the surface of the tissue, whereby a relatively intense electrical field is established through the tissue between said exposed portion of said first electrode and said second electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A heart tissue implantable bipolar electrode assembly comprising:
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a. a first conductive, rigid, helically-shaped electrode adapted to be rotatively inserted within the tissue and having an exposed portion; b. a second conductive, annularly-shaped electrode disposed about said first electrode, having a substantially flat surface for intimate electrical contact with the tissue; c. insulated means for electrically connecting an energizing source across said first and second electrodes, whereby an electric field is established between said exposed portion of said first electrode and said second electrode; d. means for confining the electric field established between said first and second electrodes; and e. means for mounting said first and second electrodes in a spaced, insulating manner to dispose said exposed portion of said first electrode in a spaced relationship from said flat surface of said second electrode so that said first electrode may be fully disposed within the tissue and said second electrode be in contact electrically with the surface of the tissue to establish an electrical field through the tissue. - View Dependent Claims (10, 11, 12, 13, 14)
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Specification