US5628778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Single pass medical electrical lead
Assignee: Medtronic Inc
•
Filing: 1994-11-21
•
Granted: 1997-05-13
•
Expires: 2014-11-21
Abstract
Abstract The present invention is directed to a single pass medical electrical lead. In one embodiment, the lead features a pair of bipolar electrodes positioned along the lead body so that they are positioned in the ventricle and atrium respectively when the lead is implanted. The lead body features a 90 degree bent reinforced section. The bend has a radius of curvature approximately 13 mm and begins approximately 90 mm from the distal end. This curved section is approximately 40 mm in length when straightened. The ventricular electrodes are positioned approximately 28 mm apart. The ventricular cathode electrode is positioned at the distal end of the lead. The atrial electrodes are positioned approximately between 5-35 mm apart, with 28 mm preferred. The atrial anode is located at a position immediately adjacent and proximal the 90 degree bent reinforced section.
Inventors
- 👤 Ib M. Kruse
- 👤 Nicolaas Lokhoff
- 👤 Paulus van Venrooij
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:02
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/05; A61N1/056; A61N1/057; A61N1/0565; A61N1/0568
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
82 words
A body-implantable medical electrical lead comprising: a lead body having a straight distal section, an intermediate section and a straight proximal section, said proximal section more flexible than said distal section, said distal section being more flexible than said intermediate section, the lead body having a first conductor and a second conductor section; a first electrode positioned on said proximal section and coupled to the first conductor, and a second electrode positioned on said distal section and coupled to the second conductor.
Claim 2
Dependent Claim
82 words
A body-implantable medical electrical lead comprising: a lead body having a straight distal section, an intermediate section and a straight proximal section, said proximal section more flexible than said distal section, said distal section being more flexible than said intermediate section, the lead body having a first conductor and a second conductor section; a first electrode positioned on said proximal section and coupled to the first conductor, and a second electrode positioned on said distal section and coupled to the second conductor.
Claim 3
Dependent Claim
15 words
The medical electrical lead according to claim 1 wherein said intermediate section has a bend.
Claim 4
Dependent Claim
17 words
The medical electrical lead according to claim 2 wherein said bend is between 135 and 45 degrees.
Claim 5
Dependent Claim
14 words
The medical electrical lead according to claim 3 wherein said bend is 90 degrees.
Claim 6
Dependent Claim
41 words
The medical electrical lead according to claim 2 wherein said intermediate section further having a proximal straight leg portion attached to a proximal end of said bend and a distal straight leg portion attached to a distal end of said bend.
Claim 7
Dependent Claim
23 words
The medical electrical lead according to claim 5 wherein a third electrode is positioned on said proximal straight leg section of said bend.
Claim 8
Dependent Claim
17 words
The medical electrical lead according to claim 1 wherein said first electrode has a porous platinized surface.
Claim 9
Dependent Claim
17 words
A lead in accordance with claim 1 wherein the first electrode has a monolithic controlled release device.
Claim 10
Dependent Claim
17 words
An electrode assembly in accordance with claim 8 wherein the first said electrode has a drug-elution port.
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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) | 2000-05-12 | 2000-11-11 | 2001-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-05-12 | 2004-11-11 | 2005-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-05-12 | 2008-11-11 | 2009-05-13 | $7700.00 | Window Closed / Lapsed |