US4374527A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Body stimulation lead
Assignee: Medtronic Inc
•
Filing: 1978-07-19
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Granted: 1983-02-22
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Expires: 1998-07-19
Abstract
Abstract An improved body stimulation lead wherein the electrode is isolated from extraneous forces imparted to the lead body. In a preferred embodiment, a plurality of lobes are formed in the lead body, the lobes being engageable with body tissue to maintain the position of the electrode and being deformable in response to extraneous forces to minimize the influence of such forces on the position of the electrode. In addition, the lead conductor is formed as a space-wound coil which provides additional stress relief. A stylet is insertable within the coil to temporarily straighten the lobes and to provide sufficient stability to the lead body for placement of the lead.
Inventors
- 👤 Alfred A. Iversen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:20
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/05; A61N1/056
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
80 words
In a body stimulator of the type having electrode means, connector means and lead body means extending between said electrode means and connector means, said lead body means including conductor means and conductor means insulating means, the improvement wherein said lead body means comprises means for deforming in compression and elongation in response to extraneous forces imparted to said lead body means to isolate said electrode means therefrom, said deforming means comprising lobe means formed within said lead body means.
Claim 2
Dependent Claim
80 words
In a body stimulator of the type having electrode means, connector means and lead body means extending between said electrode means and connector means, said lead body means including conductor means and conductor means insulating means, the improvement wherein said lead body means comprises means for deforming in compression and elongation in response to extraneous forces imparted to said lead body means to isolate said electrode means therefrom, said deforming means comprising lobe means formed within said lead body means.
Claim 3
Dependent Claim
18 words
The lead of claim 1 wherein said lobe means are proximate to but spaced from said electrode means.
Claim 4
Dependent Claim
20 words
The lead of claim 2 wherein said lobe means comprises a plurality of lobes formed within said lead body means.
Claim 5
Dependent Claim
50 words
The lead of claim 3 wherein the lobe closest to the electrode means is no closer to the electrode means than about twenty times the diameter of the electrode body means and no further from the electrode body means than about forty times the diameter of the electrode body means.
Claim 6
Dependent Claim
27 words
The lead of claim 4 wherein said lobe closest to said electrode means is approximately 25 times the diameter of said lead means from said electrode means.
Claim 7
Dependent Claim
35 words
The lead of claim 3 wherein the lobe closest to the electrode means is no closer to the electrode means than about 2 cm and no further from the electrode means than about 4 cm.
Claim 8
Dependent Claim
21 words
The lead of claim 6 wherein said lobe closest to said electrode means is approximately 2.5 cm from said electrode means.
Claim 9
Dependent Claim
14 words
The lead of claim 2 wherein said lobe means comprises four generally semicircular lobes.
Claim 10
Dependent Claim
18 words
The lead of claim 1 wherein said deforming means further comprises space-wound coil means forming said conductor means.
Claim 11
Dependent Claim
19 words
The lead of claim 9 further comprising stylet means insertable through said coil means for temporarily straightening said lobes.
Claim 12
Dependent Claim
15 words
The lead of claim 9 wherein said lobe means are formed in said coil means.
Claim 13
Dependent Claim
17 words
The lead of claim 1 wherein said deforming means comprises space-wound coil means forming said conductor means.
Claim 14
Dependent Claim
88 words
In a body stimulator lead of the type having electrode means, connector means and lead body means extending between said electrode means and connector means, said lead body means including conductor means and conductor means insulating means, the improvement wherein said lead body means comprises strain means responsive to forces imparted to said lead body means for deforming in compression and elongation to minimize the influence of said forces on the position of said electrode means, said strain means comprising lobe means formed within said lead body means.
Claim 15
Dependent Claim
88 words
In a body stimulator lead of the type having electrode means, connector means and lead body means extending between said electrode means and connector means, said lead body means including conductor means and conductor means insulating means, the improvement wherein said lead body means comprises strain means responsive to forces imparted to said lead body means for deforming in compression and elongation to minimize the influence of said forces on the position of said electrode means, said strain means comprising lobe means formed within said lead body means.
Claim 16
Dependent Claim
20 words
The lead of claim 13 wherein said lobe means comprises a plurality of lobes formed within said lead body means.
Claim 17
Dependent Claim
27 words
The lead of claim 14 wherein said lobe closest to said electrode means is approximately 25 times the diameter of said lead means from said electrode means.
Claim 18
Dependent Claim
21 words
The lead of claim 15 wherein said lobe closest to said electrode means is approximately 2.5 cm from said electrode means.
Claim 19
Dependent Claim
14 words
The lead of claim 13 wherein said lobe means comprises four generally semicircular lobes.
Claim 20
Dependent Claim
18 words
The lead of claim 13 wherein said strain means further comprises space-wound coil means forming said conductor means.
Claim 21
Dependent Claim
19 words
The lead of claim 18 further comprising stylet means insertable through said coil means for temporarily straightening said lobes.
Claim 22
Dependent Claim
15 words
The lead of claim 18 wherein said lobe means are formed in said coil means.
Claim 23
Dependent Claim
30 words
The lead of claim 13 wherein said lobe means comprise means for engaging body tissue to further minimize the influence of said forces on the position of said electrode means.
Claim 24
Dependent Claim
18 words
The lead of claim 13 wherein said lobe means are proximate to but spaced from said electrode means.
Claim 25
Dependent Claim
50 words
The lead of claim 22 wherein the lobe closest to the electrode means is no closer to the electrode means than about twenty times the diameter of the electrode body means and no further from the electrode body means than about forty times the diameter of the electrode body means.
Claim 26
Dependent Claim
35 words
The lead of claim 22 wherein the lobe closest to the electrode means is no closer to the electrode means than about 2 cm and no further from the electrode means than about 4 cm.
Claim 27
Dependent Claim
17 words
The lead of claim 13 wherein said strain means comprises space-wound coil means forming said conductor means.
Claim 28
Dependent Claim
98 words
In a body stimulator lead of the type having electrode means, connector means and lead body means extending between said electrode means and connector means, said lead body means including conductor means and conductor means insulating means, the improvement wherein said lead body means comprises lobe means of irregular conformation formed within said lead body means for maintaining the position of said electrode means, said lobe means comprising means for engaging body tissue to resist movement of said electrode means and further comprising means for deforming in response to an extraneous force imparted to said lead body means.
Claim 29
Dependent Claim
98 words
In a body stimulator lead of the type having electrode means, connector means and lead body means extending between said electrode means and connector means, said lead body means including conductor means and conductor means insulating means, the improvement wherein said lead body means comprises lobe means of irregular conformation formed within said lead body means for maintaining the position of said electrode means, said lobe means comprising means for engaging body tissue to resist movement of said electrode means and further comprising means for deforming in response to an extraneous force imparted to said lead body means.
Claim 30
Dependent Claim
14 words
The lead of claim 26 wherein said love means comprises four generally semicircular lobes.
Claim 31
Dependent Claim
18 words
The lead of claim 26 wherein said lobe means are proximate to but spaced from said electrode means.
Claim 32
Dependent Claim
20 words
The lead of claim 26 wherein said lobe means comprises a plurality of lobes formed within said lead body means.
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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) | 1986-02-21 | 1986-08-23 | 1987-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-02-21 | 1990-08-23 | 1991-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-02-21 | 1994-08-23 | 1995-02-22 | $7700.00 | Window Closed / Lapsed |