WO2002087689B1 - Insulating member for a medical electrical lead - Google Patents

Insulating member for a medical electrical lead

Info

Publication number
WO2002087689B1
WO2002087689B1 PCT/US2002/012167 US0212167W WO02087689B1 WO 2002087689 B1 WO2002087689 B1 WO 2002087689B1 US 0212167 W US0212167 W US 0212167W WO 02087689 B1 WO02087689 B1 WO 02087689B1
Authority
WO
WIPO (PCT)
Prior art keywords
lead body
head assembly
lead
lumen
electrode head
Prior art date
Application number
PCT/US2002/012167
Other languages
French (fr)
Other versions
WO2002087689A1 (en
Inventor
Thomas C Bischoff
Kathryn R Parsons
Marc Helmick
Bret R Shoberg
George M Huepenbecker
Sandra F Viktora
James J Snyder
Original Assignee
Medtronic Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Medtronic Inc filed Critical Medtronic Inc
Priority to EP02728810A priority Critical patent/EP1381424A1/en
Priority to CA002444256A priority patent/CA2444256A1/en
Publication of WO2002087689A1 publication Critical patent/WO2002087689A1/en
Publication of WO2002087689B1 publication Critical patent/WO2002087689B1/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/02—Details
    • A61N1/04—Electrodes
    • A61N1/05—Electrodes for implantation or insertion into the body, e.g. heart electrode
    • A61N1/056—Transvascular endocardial electrode systems
    • A61N1/057—Anchoring means; Means for fixing the head inside the heart
    • A61N1/0573—Anchoring means; Means for fixing the head inside the heart chacterised by means penetrating the heart tissue, e.g. helix needle or hook
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/02—Details
    • A61N1/04—Electrodes
    • A61N1/05—Electrodes for implantation or insertion into the body, e.g. heart electrode
    • A61N1/056—Transvascular endocardial electrode systems
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49227—Insulator making

Abstract

A medical electrical lead that includes a lead body (12) having a lead body lumen (102), an electrode head assembly (113) fixedly engaged with the lead body and having an electrode head assembly lumen (104) communicating with the lead body lumen (102), and a conductor (26) extending within the lead body lumen and the electrode head assembly lumen. An insulating member (120) extends through the electrode head assembly lumen and the lead body lumen to electrically isolate the conductor.

Claims

AMENDED CLAIMS
[received by the International Bureau on 17 October 2002 (17.10.02); original claims 1-14 amended (3 pages)]
l . A medical electrical lead, characterized by: a lead body (12) having a lead body lumen (102); an electrode head assembly (14), fixedly engaged with the lead body, having an etlectrode head assembly lumen (104) communicating with the lead body lumen; a conductor (26) extending within the lead body lumen and the electrode head assembly lumen; and an insulating member (120), extending through the electrode head assembly ihmen and the lead body lumen, electrically isolating the conductor.
2. The medical electrical lead of Claim 1 , characterized in that the insulating member is formed of a polymer having a high dielectric strength.
3. The medical electrical lead of Claim 2, characterized in that the insulating member is formed of PTFE tubing.
4. The medical electrical lead of claim, 1, further characterized by a coil (38) a|πd an electrode (50), wherein the insulating member prevents current leakage between the conductor, the coil and the electrode.
5. The medical electrical assembly of claim 4, the insulation member having an outer surface (132) and the electrode head assembly lumen having an inner surface (J34), wherein the outer surface of the insulation member is bonded to the inner surface of the electrode head assembly lumen.
6. The medical electrical lead of claim 5, characterized in that the outer surface of the insulation member is etched.
7. The medical electrical lead of claim 5, characterized in that the electrode head assembly extends from a first proximal end to a first distal end and the lead body extends from a second proximal end to a second distal end, the first proximal end being fixedly positioned adjacent to the second distal end.
8. The medical electrical lead of claim 7, characterized in that the coil i|s fixedly engaged with the lead body and the electrode head assembly across the first proximal end and the second distal end, and wherein the electrode head assembly includes a grooved portion fixedly engaging the coil.
9. The medical electrode lead of claim 7, further characterized by: a protruding member (202) extending from the first proximal end; and an engaging portion (126) positioned at the second distal end receiving the protruding member to align the electrode head assembly with the lead body.
10. The medical electrode lead of claim 9, further characterized by: a second lead body lumen extending from the second proximal end of the lead body to the second distal end; an electrode positioned along the lead body; and a second conductor extending through the second lead body lumen from the second proximal end of the lead body to the conductor, wherein the engaging portion corresponds to the second lead body lumen extending from the second distal end of the lead body to the conductor.
-15-
11. A method for assembling a medical electrical lead, characterized by: fixedly engaging an insulating member within a first lumen at a proximal end of an electrode head assembly, the insulating member electrically isolating a conductor; inserting the insulating member within a second lumen of a distal end of a lead body; and fixedly engaging the proximal end of the electrode head assembly and the distal end of the lead body.
12. The method of claim 11 , characterized in that the insulating member is formed of ΪTRE.
13. The method of claim 11, further characterized by the step of bonding a c oil member to an outer portion of the lead body and an outer portion of the electrode head assembly and extending across the proximal end of the electrode assembly and the distal end of the lead body.
14. The method of claim 11, characterized in that the step of fixedly engaging is further characterized by inserting a protruding member extending from the proximal end of the electrode head assembly within an engaging portion located at the distal end of the lead body to align the electrode head assembly with the lead body.
-16-
PCT/US2002/012167 2001-04-17 2002-04-17 Insulating member for a medical electrical lead WO2002087689A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP02728810A EP1381424A1 (en) 2001-04-17 2002-04-17 Insulating member for a medical electrical lead
CA002444256A CA2444256A1 (en) 2001-04-17 2002-04-17 Insulating member for a medical electrical lead

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US28443001P 2001-04-17 2001-04-17
US60/284,430 2001-04-17

Publications (2)

Publication Number Publication Date
WO2002087689A1 WO2002087689A1 (en) 2002-11-07
WO2002087689B1 true WO2002087689B1 (en) 2003-02-13

Family

ID=23090193

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/012167 WO2002087689A1 (en) 2001-04-17 2002-04-17 Insulating member for a medical electrical lead

Country Status (4)

Country Link
US (6) US20020188340A1 (en)
EP (1) EP1381424A1 (en)
CA (1) CA2444256A1 (en)
WO (1) WO2002087689A1 (en)

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Also Published As

Publication number Publication date
US7546163B2 (en) 2009-06-09
US6931285B2 (en) 2005-08-16
US20020188338A1 (en) 2002-12-12
US8219211B2 (en) 2012-07-10
US20020188340A1 (en) 2002-12-12
US20090240315A1 (en) 2009-09-24
CA2444256A1 (en) 2002-11-07
EP1381424A1 (en) 2004-01-21
US20020188337A1 (en) 2002-12-12
WO2002087689A1 (en) 2002-11-07
US20020188339A1 (en) 2002-12-12
US6813521B2 (en) 2004-11-02
US20020193860A1 (en) 2002-12-19

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