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EP0428279A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Braid electrode leads and catheters for using the same
Assignee: Telectronics NV
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Filing: 1990-10-22
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Granted: —
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Expires: 2010-10-22
Abstract
Abstract A lead for implanation in a patient's body, for conducting a countershock from a source of electrical energy, is disclosed. The lead comprises an elongate tubular insulating member (10), a terminal (26) at a proximal end of the member, and an exposed cylindrical, electrically conductive, braid electrode (42) surrounding a portion of the lead, spaced from the terminal. An insulated electrical conductor interconnects the terminal (26) and the braid electrode (42). Preferably, the insulated electrical conductor comprises an extension (47) of the braid electrode (42), which extension is surrounded by a tubular insulating sheath (54). When used as a bipolar endocardial catheter, a tip electrode (14) is provided at a distal end of the lead, and a second terminal is provided at a proximal end thereof. A second conductor (24) is provided to interconnect the tip electrode (14) and the second terminal. In a tripolar form, a ring electrode (62) is disposed between the braid electrode (65) and the tip electrode (61), and a third terminal is provided at the proximal end of the lead. A third conductor interoonnects the third terminal and the ring electrode (62).
Inventors
- 👤 Steven E. Scott
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 18:46
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/05; A61N1/056
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
141 words
A lead for implantation in a body for conducting an electrical current between an electrical device and a location in the body, said lead comprising: an elongate tubular insulating member; a first exposed portion of electrically conductive braid forming a closely fitting sheath around a portion of said insulating member; a first electrical coupling means for coupling said device to said lead, said tubular insulating member having a part which extends distally with respect to said electrical coupling means from said braid; an electrode on said part, said electrode being spaced apart from said braid; a first electrically insulated connection means for electrically connecting said braid and said electrical coupling means; a second electrical coupling means for electrically coupling said device to said lead; and a second electrical connection means for electrically connecting said electrode to said second electrical coupling means.
Claim 2
Dependent Claim
141 words
A lead for implantation in a body for conducting an electrical current between an electrical device and a location in the body, said lead comprising: an elongate tubular insulating member; a first exposed portion of electrically conductive braid forming a closely fitting sheath around a portion of said insulating member; a first electrical coupling means for coupling said device to said lead, said tubular insulating member having a part which extends distally with respect to said electrical coupling means from said braid; an electrode on said part, said electrode being spaced apart from said braid; a first electrically insulated connection means for electrically connecting said braid and said electrical coupling means; a second electrical coupling means for electrically coupling said device to said lead; and a second electrical connection means for electrically connecting said electrode to said second electrical coupling means.
Claim 3
Dependent Claim
44 words
The lead of claim 1, wherein said electrically insulated connection means comprises: an integral portion of said braid extending to said electrical coupling means; and, a tubular insulating means extending from said electrical coupling means to said first portion of said electrically conductive braid.
Claim 4
Dependent Claim
23 words
The lead of claim 1, wherein said electrode is an annular ring disposed along said part of said insulating member which extends distally.
Claim 5
Dependent Claim
23 words
The lead of claim 1, wherein said electrode is disposed at an end of said part of said insulating member which extends distally.
Claim 6
Dependent Claim
113 words
An endocardial catheter for providing a countershock to a patient's heart, said catheter comprising: an elongate member formed of an insulating material; a first terminal means at one end of said elongate member for connection to a source of electricity; a tubular braid electrode surrounding said elongate member along a portion of said catheter, said electrode being disposed externally on said elongate member; first electrical connection means for connecting said braid electrode to said terminal means; a tip electrode at an end of said insulating member most distal from said first terminal means; a second terminal means; and, a second electrical connection means for connecting said tip electrode to said second terminal means.
Claim 7
Dependent Claim
113 words
An endocardial catheter for providing a countershock to a patient's heart, said catheter comprising: an elongate member formed of an insulating material; a first terminal means at one end of said elongate member for connection to a source of electricity; a tubular braid electrode surrounding said elongate member along a portion of said catheter, said electrode being disposed externally on said elongate member; first electrical connection means for connecting said braid electrode to said terminal means; a tip electrode at an end of said insulating member most distal from said first terminal means; a second terminal means; and, a second electrical connection means for connecting said tip electrode to said second terminal means.
Claim 8
Dependent Claim
39 words
The endocardial catheter of claim 5, further comprising; a ring electrode surrounding said insulating member proximate said tip electrode; a third terminal means; and, a third electrical connection means for connecting said ring electrode to said third terminal means.
Claim 9
Dependent Claim
56 words
The endocardial catheter of claim 6, in combination with: a patch electrode adapted for subcutaneous implantation in proximity to the heart: fourth electrical connection means having a first end connected to said subcutaneous patch elec trode and a second end; and, a fourth terminal means connected to said second end of said fourth electrical connection means.
Claim 10
Dependent Claim
62 words
The endocardial catheter of claim 5, in combination with a subcutaneous lead comprising: an elongate tubular insulating material; a first portion of.electrically conductive braid forming a closely fitting sheath around a portion of said insulating material; an electrical coupling means for coupling said source to said lead; and, electrically insulated connection means for electrically connecting said braid and said electrical coupling means.
Claim 11
Dependent Claim
158 words
The combination of a subcutaneous lead with an endocardial catheter for providing a countershock to a patient's heart, said catheter comprising: an elongate member formed of an insulating material; a first terminal means at one end of said elongate member for connection to a source of electricity; a tubular braid electrode surrounding said elongate member along a portion of said catheter, said electrode being disposed externally on said elongate member; first electrical connection means for connecting said braid electrode to said terminal means; and, said subcutaneous lead comprising: a plurality of electrically insulating elongate members; for each of said elongate members, a respective tubular braid electrode surrounding one of said elongate members; a mechanical connection means for mechan ically connecting said plurality of members, an electrical coupling means for coupling said lead to said source of electrical energy; and, an electrical connection means for electrically connecting said braid electrodes to one another and to said electrical coupling means.
Claim 12
Dependent Claim
158 words
The combination of a subcutaneous lead with an endocardial catheter for providing a countershock to a patient's heart, said catheter comprising: an elongate member formed of an insulating material; a first terminal means at one end of said elongate member for connection to a source of electricity; a tubular braid electrode surrounding said elongate member along a portion of said catheter, said electrode being disposed externally on said elongate member; first electrical connection means for connecting said braid electrode to said terminal means; and, said subcutaneous lead comprising: a plurality of electrically insulating elongate members; for each of said elongate members, a respective tubular braid electrode surrounding one of said elongate members; a mechanical connection means for mechan ically connecting said plurality of members, an electrical coupling means for coupling said lead to said source of electrical energy; and, an electrical connection means for electrically connecting said braid electrodes to one another and to said electrical coupling means.
Claim 13
Dependent Claim
29 words
The combination of claim 9, wherein said elongate insulating member of said catheter comprises: an elongate insulating inner tube; and, an elongate insulating outer tube surrounding said inner tube.
Claim 14
Dependent Claim
26 words
The combination of claim 10, wherein said first electrical connection means is a cylindrical electrically conductive braid disposed between said inner tube and said outer tube.
Claim 15
Dependent Claim
18 words
The combination of claim 11, wherein said electrically conductive braid is an integral extension of said braid electrode.
Claim 16
Dependent Claim
55 words
The combination of claim 10, wherein said inner tube has a lumen extending along its length, further comprising an active fixation means for affixing a distal end of the lead to an interior surface of the heart, said lumen being for providing access to said active fixation means from a proximal end of said lead.
Claim 17
Dependent Claim
87 words
A lead for implantation in the body for conducting a countershock from a source of electrical energy, comprising: a plurality of electrically insulating elongate members; for each of said elongate members, a respective tubular braid electrode surrounding one of said elongate members; a mechanical connection means for mechanically connecting said plurality of members, an electrical coupling means for coupling said lead to said source of electrical energy; and an electrical connection means for electrically connecting said braid electrodes to one another and to said electrical coupling means.
Claim 18
Dependent Claim
87 words
A lead for implantation in the body for conducting a countershock from a source of electrical energy, comprising: a plurality of electrically insulating elongate members; for each of said elongate members, a respective tubular braid electrode surrounding one of said elongate members; a mechanical connection means for mechanically connecting said plurality of members, an electrical coupling means for coupling said lead to said source of electrical energy; and an electrical connection means for electrically connecting said braid electrodes to one another and to said electrical coupling means.
Claim 19
Dependent Claim
38 words
The lead of claim 14, wherein said electrical connection means includes a first portion for electrically connecting said respective braid electrodes to one another and a second portion extending from said braid electrodes to said electrical coupling means.
Claim 20
Dependent Claim
29 words
The lead of claim 15, further comprising an insulating tube extending from said electrical coupling means to said mechanical connection means to insulate said first portion from the body.
Claim 21
Dependent Claim
37 words
The lead of claim 14, wherein said mechanical connection means is formed of an insulating material and insulates portions of said tubular braid electrodes extending between said elongate members to thereby insulate said portions from the body.
Claim 22
Dependent Claim
33 words
The lead of claim 14, wherein said mechanical connection means is shaped to connect said insulating members so that said insulating members extend substantially parallel to one another from said mechanical connection means.
Claim 23
Dependent Claim
36 words
The lead of claim 14, wherein said mechanical connection means is shaped to connect said insulating members so that said insulating members diverge slightly from one another in a distal direction from said mechanical connection means.
Claim 24
Dependent Claim
31 words
The lead of claim 18, wherein said mechanical connection means is configured so that said insulating members are spaced from one another to fit into successive intercostal spaces of a patient.
Claim 25
Dependent Claim
23 words
The lead of claim 14, in combination with affixing means for subcutaneously affixing the insulating members covered with the respective braid elec trodes.
Claim 26
Dependent Claim
23 words
The lead of claim 14, in combination with affixing means for affixing the insulating members covered with respective braid electrodes to the heart.
Claim 27
Dependent Claim
15 words
The lead of claim 21 or of claim 22, wherein said affixing means are sutures.
Claim 28
Independent Claim
80 words
A method for providing electrical stimulation to a patient's heart comprising: implanting an endocardial catheter having an exposed braid electrode along a portion of its length in the patent's heart; providing a lead having an additional electrode along a portion of its length, said electrode being positioned so that current can flow through the patient between said braid electrode and said additional electrode; and, electrically connecting said braid electrode and said additional electrode to a source of electrical stimulation energy.
Claim 29
Independent Claim
80 words
A method for providing electrical stimulation to a patient's heart comprising: implanting an endocardial catheter having an exposed braid electrode along a portion of its length in the patent's heart; providing a lead having an additional electrode along a portion of its length, said electrode being positioned so that current can flow through the patient between said braid electrode and said additional electrode; and, electrically connecting said braid electrode and said additional electrode to a source of electrical stimulation energy.
Claim 30
Dependent Claim
12 words
The method of claim 25, wherein said additional electrode is placed cutaneously.
Claim 31
Dependent Claim
12 words
The method of claim 25, wherein said additional electrode is placed subcutaneously.
References Cited (Backward Citations)
No citation records indexed.
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