US5578067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Medical electrode system having a sleeve body and control element therefor for selectively positioning an exposed conductor area
Assignee: Pacesetter AB
•
Filing: 1995-04-04
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Granted: 1996-11-26
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Expires: 2015-04-04
Abstract
Abstract An electrode apparatus, such as an intravascular or intracardiac pacemaker or defibrillation electrode with an electrode cable has a jacket of insulation enclosing a first elongated, flexible conductor, connected to a first electrode arranged on the electrode cable, and also enclosing at least a second conductor, connected to a conductive surface forming a second electrode arranged on the electrode cable at a distance from the first electrode. In order to achieve an electrode apparatus with which the distance between the electrode on the electrode cable cart be changed in a very simple manner and in which the surface area exposed to tissue of at least one electrode can be enlarged, reduced and even rotated around the electrode cable in certain instances, the electrode apparatus is equipped with at least one sleeve-like body, insulated against the surroundings and slidable on the electrode cable, which at least partially covers the conductive surface and with which the second electrode can be formed whose position in relation to the first electrode and/or whose size can be varied.
Inventors
- 👤 Christer Ekwall
- 👤 Kurt Hognelid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:14
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/05; A61N1/056
Claims Analysis
Total Claims: 38
Claim 1
Independent Claim
170 words
A medical electrode system comprising: a flexible, longitudinally extending cable adapted for implantation in a medical subject and having an exterior insulating jacket containing first and second flexible electrical conductors; an exposed, first electrode carried on said cable and electrically connected to said first electrical conductor; said cable having an electrically conductive surface electrically connected to said second electrical conductor and disposed a distance from said first electrode and exposed to the exterior of said cable; a sleeve body surrounding said cable and extending over a longitudinal portion of said cable, said sleeve body being selectively positionable on said cable to partially cover said electrically conductive surface and to leave a remainder of said electrically conductive surface exposed at a selected position relative to said first electrode, said remainder of said conductive surface forming a second electrode; and a control element temporarily engage able with said sleeve body for selectively positioning said sleeve body on said cable to select the position of said exposed surface relative to said first electrode.
Claim 2
Dependent Claim
170 words
A medical electrode system comprising: a flexible, longitudinally extending cable adapted for implantation in a medical subject and having an exterior insulating jacket containing first and second flexible electrical conductors; an exposed, first electrode carried on said cable and electrically connected to said first electrical conductor; said cable having an electrically conductive surface electrically connected to said second electrical conductor and disposed a distance from said first electrode and exposed to the exterior of said cable; a sleeve body surrounding said cable and extending over a longitudinal portion of said cable, said sleeve body being selectively positionable on said cable to partially cover said electrically conductive surface and to leave a remainder of said electrically conductive surface exposed at a selected position relative to said first electrode, said remainder of said conductive surface forming a second electrode; and a control element temporarily engage able with said sleeve body for selectively positioning said sleeve body on said cable to select the position of said exposed surface relative to said first electrode.
Claim 3
Dependent Claim
46 words
A medical electrode system as claimed in claim 1 wherein said sleeve body comprises a solid-walled tube having opposite ends, and wherein said remainder of said electrically conductive surface comprises a portion of said electrically conductive surface disposed adjacent one of said ends of said tube.
Claim 4
Dependent Claim
63 words
A medical electrode system as claimed in claim 1 wherein said sleeve body comprises a tube having a tube wall with at least one opening therein, said opening exposing said remainder of said electrically conductive surface, and said opening having a longitudinal extent which is less than a longitudinal extent of said electrically conductive surface, and said tube being rotatable around said cable.
Claim 5
Dependent Claim
34 words
A medical electrode system as claimed in claim 3 wherein said control element temporarily engageable with said end of said sleeve body comprises means for controlling rotation of said sleeve body around said cable.
Claim 6
Dependent Claim
36 words
A medical electrode system as claimed in claim 4 wherein said control element temporarily engageable with said end of said sleeve body further comprises means for controlling sliding of said sleeve body longitudinally along said cable.
Claim 7
Dependent Claim
28 words
A medical electrode system as claimed in claim 1 wherein said electrically conductive surface comprises a thin electrically conductive coating deposited on the exterior of said insulating jacket.
Claim 8
Dependent Claim
38 words
A medical electrode system as claimed in claim 1 wherein said electrically conductive surface comprises a portion of said second conductor exposed by removal of said insulating jacket in registry with said portion of said second electrical conductor.
Claim 9
Dependent Claim
20 words
A medical electrode system as claimed in claim 1 wherein said electrically conductive surface comprises at least two spaced-apart sub-surfaces.
Claim 10
Dependent Claim
70 words
A medical electrode system as claimed in claim 1 further comprising an additional sleeve body also surrounding said cable and extending over a longitudinal portion of said cable, said additional sleeve body being disposed on said cable to partially cover said electrically conductive surface and, in combination with said sleeve body, to leave a remainder of said electrically conductive surface exposed at said selected position relative to said first electrode.
Claim 11
Dependent Claim
97 words
A medical electrode system as claimed in claim 1 wherein said electrode cable comprises a third flexible electrical conductor contained in said insulating jacket and a second electrically conductive surface, electrically connected to said third electrical conductor and disposed a distance from said first electrode and exposed to the exterior of said cable, said first and second electrically conductive surfaces each being divided into a plurality of sub-surfaces longitudinally spaced from each other along said electrode cable, and wherein said sleeve body simultaneously exposes at least one sub-surface of each of said first and second conductive surfaces.
Claim 12
Dependent Claim
68 words
A medical electrode system as claimed in claim 10 wherein said sleeve body comprises a tube with a tube wall having two openings therein, said openings being spaced from each other by a distance corresponding to a spacing between two adjacent ones of said sub-surfaces of said first and second conductive surfaces, and wherein each of said openings has a longitudinal extent which is less than said distance.
Claim 13
Dependent Claim
35 words
A medical electrode system as claimed in claim 1 wherein said control element temporarily engageable with said end of said sleeve body comprises means for controlling sliding of said sleeve body longitudinally along said cable.
Claim 14
Dependent Claim
37 words
A medical electrode system as claimed in claim 1 further comprising fixing elements projecting from said sleeve body adapted for interacting with tissue of said medical subject to hold said cable in place within said medical subject.
Claim 15
Dependent Claim
52 words
A medical electrode system as claimed in claim 13 wherein said sleeve body comprises a tube having a tube wall with at least one opening therein which exposes said remainder of said electrically conductive surface at said selected position, and wherein said fixing elements are disposed adjacent said at least one opening.
Claim 16
Dependent Claim
23 words
A medical electrode system as claimed in claim 1 further comprising a coating of lubricant on said exterior insulating jacket of said cable.
Claim 17
Dependent Claim
30 words
A medical electrode system as claimed in claim 1 wherein said sleeve body has an interior wall, and further comprising a lubricant coating said interior wall of said sleeve body.
Claim 18
Dependent Claim
178 words
A medical electrode system comprising: a flexible, longitudinally extending cable adapted for implantation in a medical subject and having an exterior insulating jacket containing first and second flexible electrical conductors; an exposed first electrode carried on said cable and electrically connected to said first electrical conductor; said cable having an electrically conductive surface electrically connected to said second electrical conductor and disposed a distance from said first electrode and exposed to the exterior of said cable; a sleeve body surrounding said cable and extending over a longitudinal portion of said cable, said sleeve body being selectively positionable on said cable to provide a current path between said electrically conductive surface and said medical subject, said current path including a second electrode and said second electrode having a position relative to said first electrode which is selectively variable by displacing said sleeve body relative to said cable: and a control element temporarily engageable with said sleeve body for selectively positioning said sleeve body on said cable to select the position of said exposed surface relative to said first electrode.
Claim 19
Dependent Claim
178 words
A medical electrode system comprising: a flexible, longitudinally extending cable adapted for implantation in a medical subject and having an exterior insulating jacket containing first and second flexible electrical conductors; an exposed first electrode carried on said cable and electrically connected to said first electrical conductor; said cable having an electrically conductive surface electrically connected to said second electrical conductor and disposed a distance from said first electrode and exposed to the exterior of said cable; a sleeve body surrounding said cable and extending over a longitudinal portion of said cable, said sleeve body being selectively positionable on said cable to provide a current path between said electrically conductive surface and said medical subject, said current path including a second electrode and said second electrode having a position relative to said first electrode which is selectively variable by displacing said sleeve body relative to said cable: and a control element temporarily engageable with said sleeve body for selectively positioning said sleeve body on said cable to select the position of said exposed surface relative to said first electrode.
Claim 20
Dependent Claim
42 words
A medical electrode system as claimed in claim 17 wherein said sleeve body comprises a solid-walled tube having opposite ends, and wherein said second electrode comprises a portion of said electrically conductive surface disposed adjacent one of said ends of said tube.
Claim 21
Dependent Claim
59 words
A medical electrode system as claimed in claim 17 wherein said sleeve body comprises a tube having a tube wall with at least one opening therein, said opening exposing said second electrode, and said opening having a longitudinal extent which is less than a longitudinal extent of said electrically conductive surface, and said tube being rotatable around said cable.
Claim 22
Dependent Claim
70 words
A medical system apparatus as claimed in claim 17 further comprising an additional sleeve body also surrounding said cable and extending over a longitudinal portion of said cable, said additional sleeve body being disposed on said cable to partially cover said electrically conductive surface and, in combination with said sleeve body, to leave a remainder of said electrically conductive surface exposed at a selected position relative to said first electrode.
Claim 23
Dependent Claim
62 words
A medical electrode system as claimed in claim 17 wherein said sleeve body has an interior wall with a conductive coating on said interior wall, and said sleeve body carrying said second electrode at an exterior of said sleeve body and electrically connected to said conductive coating, said conductive coating being in electrical contact with said electrically conductive surface on said cable.
Claim 24
Dependent Claim
37 words
A medical electrode system as claimed in claim 21 wherein said sleeve body has an end, and wherein said electrode on said sleeve body forming said second electrode is disposed at said end of said sleeve body.
Claim 25
Dependent Claim
28 words
A medical electrode system as claimed in claim 17 wherein said electrically conductive surface comprises a thin electrically conductive coating deposited on the exterior of said insulating jacket.
Claim 26
Dependent Claim
38 words
A medical electrode system as claimed in claim 17 wherein said electrically conductive surface comprises a portion of said second conductor exposed by removal of said insulating jacket in registry with said portion of said second electrical conductor.
Claim 27
Dependent Claim
20 words
A medical electrode system as claimed in claim 17 wherein said electrically conductive surface comprises at least two spaced-apart sub-surfaces.
Claim 28
Dependent Claim
97 words
A medical electrode system as claimed in claim 17 wherein said electrode cable comprises a third flexible electrical conductor contained in said insulating jacket and a second electrically conductive surface, electrically connected to said third electrical conductor and disposed a distance from said first electrode and exposed to the exterior of said cable, said first and second electrically conductive surfaces each being divided into a plurality of sub-surfaces longitudinally spaced from each other along said electrode cable, and wherein said sleeve body simultaneously exposes at least one sub-surface of each of said first and second conductive surfaces.
Claim 29
Dependent Claim
68 words
A medical electrode system as claimed in claim 17 wherein said sleeve body comprises a tube with a tube wall having two openings therein, said openings being spaced from each other by a distance corresponding to a spacing between two adjacent ones of said sub-surfaces of said first and second conductive surfaces, and wherein each of said openings has a longitudinal extent which is less than said distance.
Claim 30
Dependent Claim
34 words
A medical electrode system as claimed in claim 27 wherein said control element temporarily engageable with said end of said sleeve body comprises means for controlling rotation of said sleeve body around said cable.
Claim 31
Dependent Claim
35 words
A medical electrode system as claimed in claim 27 wherein said control element temporarily engageable with said end of said sleeve body comprises means for controlling sliding of said sleeve body longitudinally along said cable.
Claim 32
Dependent Claim
37 words
A medical electrode system as claimed in claim 17 further comprising fixing elements projecting from said sleeve body adapted for interacting with tissue of said medical subject to hold said cable in place within said medical subject.
Claim 33
Dependent Claim
52 words
A medical electrode system as claimed in claim 30 wherein said sleeve body comprises a tube having a tube wall with at least one opening therein which exposes said remainder of said electrically conductive surface at said selected position, and wherein said fixing elements are disposed adjacent said at least one opening.
Claim 34
Dependent Claim
34 words
A medical electrode system as claimed in claim 31 wherein said control element temporarily engageable with said end of said sleeve body comprises means for controlling rotation of said sleeve body around said cable.
Claim 35
Dependent Claim
36 words
A medical electrode system as claimed in claim 32 wherein said control element temporarily engageable with said end of said sleeve body further comprises means for controlling sliding of said sleeve body longitudinally along said cable.
Claim 36
Dependent Claim
23 words
A medical electrode system as claimed in claim 17 further comprising a coating of lubricant on said exterior insulating jacket of said cable.
Claim 37
Dependent Claim
30 words
A medical electrode system as claimed in claim 17 wherein said sleeve body has an interior wall, and further comprising a lubricant coating said interior wall of said sleeve body.
Claim 38
Dependent Claim
36 words
A medical electrode system as claimed in claim 17 wherein said control element temporarily engageable with said end of said sleeve body further comprises means for controlling sliding of said sleeve body longitudinally along said cable.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-11-26 | 2000-05-27 | 2000-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-11-26 | 2004-05-27 | 2004-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-11-26 | 2008-05-27 | 2008-11-26 | $7700.00 | Window Closed / Lapsed |