Patent US3150588A successfully refreshed from Google Patents.
US5439485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible defibrillation electrode of improved construction
Assignee: Pacesetter Inc
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Filing: 1993-09-24
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Granted: 1995-08-08
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Expires: 2013-09-24
Abstract
Abstract An implantable defibrillator lead comprises a flexible core onto which is wound helically wound coils to form an electrode. These electrode coils are partially encapsulated by a flexible matrix which holds them in their wrapped position around the core. Due to its coiled coil structure, this electrode provides improved flexibility, and can be used endocardially, intravascularly, epicardially, or subcutaneously. The electrode may function alternately as a defibrillation electrode and as a sensing electrode in a lead with a separate pacing electrode.
Inventors
- 👤 Craig E. Mar
- 👤 Benjamin D. Pless
- 👤 M. Elizabeth Bush
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:40
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/05; A61N1/056; A61N1/0563; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
107 words
A body implantable lead including at least one electrode having a proximal end and a distal end, comprising: a flexible tubular supporting core having a lumen therethrough; at least one electrode coil helically wound about said core, said at least one electrode coil having a proximal end corresponding to said electrode proximal end and a distal end corresponding to said electrode distal end and comprising at least one helically wound metal wire and being connected at one of said ends to a conductor; and a matrix of elastomeric material partially encapsulating said electrode coil and holding said electrode coil in said helically wound position around said core.
Claim 2
Dependent Claim
107 words
A body implantable lead including at least one electrode having a proximal end and a distal end, comprising: a flexible tubular supporting core having a lumen therethrough; at least one electrode coil helically wound about said core, said at least one electrode coil having a proximal end corresponding to said electrode proximal end and a distal end corresponding to said electrode distal end and comprising at least one helically wound metal wire and being connected at one of said ends to a conductor; and a matrix of elastomeric material partially encapsulating said electrode coil and holding said electrode coil in said helically wound position around said core.
Claim 3
Dependent Claim
23 words
The lead of claim 1 in which said conductor is attached to a connector for connection of said lead with an implantable defibrillator.
Claim 4
Dependent Claim
11 words
The lead of claim 1 in which said core is insulative.
Claim 5
Dependent Claim
11 words
The lead of claim 1 in which said core is conductive.
Claim 6
Dependent Claim
14 words
The lead of claim 1 in which said wire is round in cross section.
Claim 7
Dependent Claim
17 words
The lead of claim 1 in which said wire is flat and substantially rectangular in cross section.
Claim 8
Dependent Claim
16 words
The lead of claim 1 in which said wire is made of a platinum iridium alloy.
Claim 9
Dependent Claim
11 words
The lead of claim 1 in which said matrix is insulative.
Claim 10
Dependent Claim
11 words
The lead of claim 1 in which said matrix is conductive.
Claim 11
Dependent Claim
18 words
The lead of claim 1 in which said wire is between about 0.05 and 0.10 mm in diameter.
Claim 12
Dependent Claim
22 words
The lead of claim 1 in which said at least one coil is between about 0.2 and 0.4 mm in outer diameter.
Claim 13
Dependent Claim
21 words
The lead of claim 1 in which said conductor is a coil that extends through the lumen of said tubular core.
Claim 14
Dependent Claim
25 words
The lead of claim 12 in which said conductor coil is electrically connected to said electrode coil at said distal end of said electrode coil.
Claim 15
Dependent Claim
24 words
The lead of claim 12 in which said conductor coil is electrically connected to said electrode coil at both ends of said electrode coil.
Claim 16
Dependent Claim
32 words
The lead of claim 12 in which said conductor coil is electrically connected to said electrode coil at a location between said proximal end and said distal end of said electrode coil.
Claim 17
Dependent Claim
24 words
The lead of claim 12 in which at least a portion of said conductor coil forms an inner lumen capable of accommodating a stylet.
Claim 18
Dependent Claim
25 words
The lead of claim 12 in which at least a portion of said conductor coil forms an inner lumen through which extends an insulated conductor.
Claim 19
Dependent Claim
12 words
The lead of claim 1 in which said wire is space wound.
Claim 20
Dependent Claim
17 words
The lead of claim 1 in which said electrode coils are space wound about said tubular core.
Claim 21
Dependent Claim
12 words
The lead of claim 1 in which said electrode is J shaped.
Claim 22
Dependent Claim
103 words
A body implantable lead including at least one defibrillation electrode having a proximal end and a distal end, comprising: a flexible core; at least one electrode coil comprising at least one helically wound wire; each said at least one electrode coil being helically wound about said core, said at least one electrode coil having a proximal end corresponding to said electrode proximal end and a distal end corresponding to said electrode distal end and being connected at one of said ends to a conductor; and said electrode coil being partially embedded in flexible material and thereby held in fixed position around said core.
Claim 23
Dependent Claim
103 words
A body implantable lead including at least one defibrillation electrode having a proximal end and a distal end, comprising: a flexible core; at least one electrode coil comprising at least one helically wound wire; each said at least one electrode coil being helically wound about said core, said at least one electrode coil having a proximal end corresponding to said electrode proximal end and a distal end corresponding to said electrode distal end and being connected at one of said ends to a conductor; and said electrode coil being partially embedded in flexible material and thereby held in fixed position around said core.
Claim 24
Dependent Claim
19 words
The lead of claim 21 and further including a plurality of said electrodes electrically connected at a common node.
Claim 25
Dependent Claim
90 words
A body implantable lead including at least one defibrillation electrode comprising: a flexible core: at least one electrode coil helically wound about said core, said at least one electrode coil comprising at least one helically wound metal wire and being connected at one end to a conductor for connecting said electrode to an implantable pulse generator; and wherein said electrode has a resistivity along its length greater than one ohm whereby current flowing from said electrode differs depending on the location of the connection between said conductor and said electrode.
Claim 26
Dependent Claim
90 words
A body implantable lead including at least one defibrillation electrode comprising: a flexible core: at least one electrode coil helically wound about said core, said at least one electrode coil comprising at least one helically wound metal wire and being connected at one end to a conductor for connecting said electrode to an implantable pulse generator; and wherein said electrode has a resistivity along its length greater than one ohm whereby current flowing from said electrode differs depending on the location of the connection between said conductor and said electrode.
References Cited (Backward Citations)
US3572344A
Cited
US3942536A
Cited
US3942536B1
Cited
US3788329A
Cited
US4161952A
Cited
US5007436A
Cited
US4860769A
Cited
US4922927A
Cited
US5052407A
Cited
US5007422A
Cited
US5016808A
Cited
US4998975A
Cited
US5115818A
Cited
US5174288A
Cited
WO1992013481A1
Cited
US5144960A
Cited
US5226260A
Cited
US5265623A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-08-07 | 1999-02-06 | 1999-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-08-07 | 2003-02-06 | 2003-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-08-07 | 2007-02-06 | 2007-08-08 | $7700.00 | Window Closed / Lapsed |