Low impedence defibrillation catheter electrode
First Claim
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1. A low impedence defibrillation catheter electrode having a high effective conductive length comprising:
- a) an electrode structure having an elongated conductive body having a predetermined first length and lead means extending therefrom for connection to a defibrillation system; and
b) at least one resilient conductive member extending outwardly from said elongated conductive body and being unitary therewith, each of said at least one resilient conductive members(s) being a single elongated body having a predetermined second length, said second length being shorter than said first length, each of said at least one resilient conductive member(s) length comprising means for increasing the effective conductive length of said defibrillation electrode to thereby lower its impedance.
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Abstract
A low impedence defibrillation catheter electrode having a high effective conductive length for implantation in the right ventricle of the heart. The catheter electrode conductive body has at least one flexible and resilient extension member extending angularly therefrom. The flexible and resilient conductive members provide an increased effective length to the catheter electrode and permit collapse into a small diameter configuration for insertion into an introducer structure for implantation through a venous approach.
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Citations
23 Claims
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1. A low impedence defibrillation catheter electrode having a high effective conductive length comprising:
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a) an electrode structure having an elongated conductive body having a predetermined first length and lead means extending therefrom for connection to a defibrillation system; and b) at least one resilient conductive member extending outwardly from said elongated conductive body and being unitary therewith, each of said at least one resilient conductive members(s) being a single elongated body having a predetermined second length, said second length being shorter than said first length, each of said at least one resilient conductive member(s) length comprising means for increasing the effective conductive length of said defibrillation electrode to thereby lower its impedance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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- 9. A defibrillation catheter electrode comprising an elongated conductive body of a predetermined length and configuration and comprising means for pivotally connecting at least one outwardly extending conductive member and for reducing the electrode impedance, said at least one outwardly extending conductive member being unitary with said elongated conductive body.
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20. A process of implanting a low electrical impedance defibrillation catheter electrode through the veins and into the right ventricle of the heart of a patient comprising:
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a) providing a defibrillation catheter electrode having an elongated conductive body and at least one outwardly extending pivotally connected conductive member and being unitary with said conductive body, b) providing an introducer sheath structure having an opening, c) inserting said defibrillation catheter electrode into said sheath structure and thereby collapsing said catheter structure by folding said conductive member against said conductive body, d) manipulating said introducer sheath structure into the right ventricle of the heart, and e) removing said introducer sheath structure from said collapsed catheter structure, thereby permitting said conductive members to pivot from said conductive body into an angular configuration.
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- 21. In a defibrillation catheter electrode having an electrode body having a lead assembly electrically connecting said electrode body and a defibrillator device, said electrode body comprising a plurality of conductive body members extending from said electrode body, each said conductive body member having a predetermined length and opposing conductive surfaces and being unitary with said electrode body and comprising resilient means for exposing said conductive surfaces and conductive means for lowering the impedance of the defibrillation catheter electrode.
Specification