Patent US5683445A successfully refreshed from Google Patents.
US5683445A
Expired / Lapsed
US
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Medical electrical lead
Assignee: Medtronic Inc
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Filing: 1996-04-29
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Granted: 1997-11-04
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Expires: 2016-04-29
Abstract
Abstract A transvenous bipolar lead specifically designed for coronary sinus implantation. The lead has essentially two main characteristics, the distal end has a 45-degree pre-shape to facilitate introduction of the lead through a catheter and provide optimal positioning of the lead within the coronary sinus. The lead further features a distal electrode tip which itself is canted at an angle of 45 degrees on the distal end of the lead to provide a very close contact with the coronary sinus upper wall and, thus, with the left atrium inferolateral wall. In addition, each of these sections is flexible to permit the lead to be introduced through a relatively small-sized guide catheter. Finally, the lead further features a center lumen to also permit the lead to be straightened for introduction with a stylet.
Inventors
- 👤 John M. Swoyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:52
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/05; A61N1/056; A61N1/0565; A61N1/0568; A61N2001/0585
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
87 words
A medical electrical lead comprising: a connector assembly; a lead body coupled to the connector assembly, the lead body having a first distal section and a second proximal section, the first section having a flexible first bend and a first stiffness, the second section having a flexible second bend and a second stiffness, the first stiffness greater than the second stiffness, second bend is between 15 to 90 degrees, the first bend is between 15 to 90 degrees; and a tip electrode coupled to the lead body.
Claim 2
Dependent Claim
87 words
A medical electrical lead comprising: a connector assembly; a lead body coupled to the connector assembly, the lead body having a first distal section and a second proximal section, the first section having a flexible first bend and a first stiffness, the second section having a flexible second bend and a second stiffness, the first stiffness greater than the second stiffness, second bend is between 15 to 90 degrees, the first bend is between 15 to 90 degrees; and a tip electrode coupled to the lead body.
Claim 3
Dependent Claim
17 words
The lead according to claim 1 wherein first bend is located 0.25 inches from the tip electrode.
Claim 4
Dependent Claim
18 words
The lead according to claim 1 wherein the second bend is located 1.15 inches from the tip electrode.
Claim 5
Dependent Claim
19 words
The lead according to claim 1 wherein the first bend and the second bend are in the same plane.
Claim 6
Dependent Claim
45 words
The lead according to claim 1 wherein the lead body further comprises a second conductor covered by a second insulative sheath, a ring electrode coupled to the second conductor, the ring electrode positioned along the lead body between the first section and the second section.
Claim 7
Dependent Claim
22 words
The lead according to claim 1 wherein the surface of the tip electrode exposed to the body is generally hemispherical in shape.
Claim 8
Dependent Claim
47 words
The lead according to claim 1 wherein the electrode is formed of porous metallic or other conductive materials from the class of materials consisting essentially of platinum, palladium, titanium, tantalum, rhodium, iridium, carbon, vitreous carbon and alloys, oxides and nitrides of such metals or other conductive materials.
Claim 9
Independent Claim
145 words
A system for implanting a medical electrical lead comprising: a guide catheter, the guide catheter having a lumen therethrough, the guide catheter having a guide catheter bend and a guide catheter stiffness; and a medical electrical lead disposed through the lumen of the guide catheter, the medical electrical lead having a connector assembly, a lead body coupled to the connector assembly, the lead body having a second proximal section and a first distal section, the first section having a flexible first bend and a first stiffness, the second section having a flexible second bend and a second stiffness, the first stiffness greater than the second stiffness, the first stiffness and the second stiffness less than the guide catheter stiffness, the second bend is between 15 to 90 degrees, the first bend is between 15 to 90 degrees, a tip electrode coupled to the lead body.
Claim 10
Independent Claim
145 words
A system for implanting a medical electrical lead comprising: a guide catheter, the guide catheter having a lumen therethrough, the guide catheter having a guide catheter bend and a guide catheter stiffness; and a medical electrical lead disposed through the lumen of the guide catheter, the medical electrical lead having a connector assembly, a lead body coupled to the connector assembly, the lead body having a second proximal section and a first distal section, the first section having a flexible first bend and a first stiffness, the second section having a flexible second bend and a second stiffness, the first stiffness greater than the second stiffness, the first stiffness and the second stiffness less than the guide catheter stiffness, the second bend is between 15 to 90 degrees, the first bend is between 15 to 90 degrees, a tip electrode coupled to the lead body.
Claim 11
Dependent Claim
20 words
The system for implanting a medical electrical lead according to claim 8 wherein the guide catheter bend is substantially linear.
Claim 12
Dependent Claim
23 words
The system for implanting a medical electrical lead according to claim 8 wherein first bend is located 0.25 inches from the tip electrode.
Claim 13
Dependent Claim
24 words
The system for implanting a medical electrical lead according to claim 8 wherein the second bend is located 1.15 inches from the tip electrode.
Claim 14
Dependent Claim
25 words
The system for implanting a medical electrical lead according to claim 8 wherein the first bend and the second bend are in the same plane.
Claim 15
Dependent Claim
61 words
The system for implanting a medical electrical lead according to claim 8 wherein the system for implanting a medical electrical body further comprises a second conductor covered by a second insulative sheath, a ring electrode coupled to the second conductor, the ring electrode positioned along the lead for implanting a medical electrical body between the first section and the second section.
Claim 16
Dependent Claim
28 words
The system for implanting a medical electrical lead according to claim 8 wherein the surface of the tip electrode exposed to the body is generally hemispherical in shape.
References Cited (Backward Citations)
US3729008A
Cited
US4317458A
Cited
US4402330A
Cited
US4407304A
Cited
US4552157A
Cited
US4402328A
Cited
US4493329A
Cited
US4699157A
Cited
US4882777A
Cited
US4819662A
Cited
US4777955A
Cited
US5170787A
Cited
US5304139A
Cited
US5215540A
Cited
WO1993020750A1
Cited
US5306263A
Cited
US5322509A
Cited
US5383922A
Cited
US5423772A
Cited
US5462545A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-11-03 | 2001-05-05 | 2001-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-11-03 | 2005-05-05 | 2005-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-11-03 | 2009-05-05 | 2009-11-04 | $7700.00 | Window Closed / Lapsed |