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US4848352A
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Method for cardiac pacing and sensing using combination of electrodes
Assignee: Pacesetter Inc
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Filing: 1988-07-07
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Granted: 1989-07-18
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Expires: 2008-07-07
Abstract
Abstract A method for cardiac pacing and sensing is disclosed. A cardiac pacing lead is inserted into a heart chamber. The lead carries a plurality of separate electrodes positioned at the distal tip of the lead and transversely spaced from and electrically isolated from each other. A separate electrical conductor is provided for each electrode. A plurality of the electrodes are combined via electrical conductors to provide a relatively large electrode area for sensing cardiac activity. One of the electrodes is used for providing pacing pulses to the heart chamber. The pacing electrode has a relatively smaller surface area than the relatively large surface area used for sensing.
Inventors
- 👤 Peter J. Pohndorf
- 👤 Edward A. Schroeppel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:55
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/05; A61N1/056; A61N1/0565; A61B; A61B5/00; A61B5/24; A61B5/25; A61B5/279; A61B5/28; A61B5/283; A61B5/287; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B2018/1497; A61B2562/00; A61B2562/04; A61B2562/043
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
172 words
A method for cardiac pacing and sensing, which comprises the steps of: providing a cardiac pacing lead having a distal tip at one end thereof, a first electrode positioned at said distal tip and a second electrode positoned at said distal tip, with said first and second electrodes being separate from each other, transversely spaced from each other, and electrically isolated from each other; providing a first electrical conductor for said first electrode; providing a second electrical conductor for said second electrode, said second electrical conductor being a different electrical conductor from said first electrical conductor; inserting said lead into a heart chamber; combining said first and second electrodes via said first and second electrical conductors to provide a relatively large surface electrode area for sensing cardiac activity; and using only said first electrode for providing pacing pulses to the heart chamber, said first electrode having a relatively smaller surface electrode area than said relatively large surface area used for sensing and resulting from the combination of said first and second electrodes.
Claim 2
Independent Claim
172 words
A method for cardiac pacing and sensing, which comprises the steps of: providing a cardiac pacing lead having a distal tip at one end thereof, a first electrode positioned at said distal tip and a second electrode positoned at said distal tip, with said first and second electrodes being separate from each other, transversely spaced from each other, and electrically isolated from each other; providing a first electrical conductor for said first electrode; providing a second electrical conductor for said second electrode, said second electrical conductor being a different electrical conductor from said first electrical conductor; inserting said lead into a heart chamber; combining said first and second electrodes via said first and second electrical conductors to provide a relatively large surface electrode area for sensing cardiac activity; and using only said first electrode for providing pacing pulses to the heart chamber, said first electrode having a relatively smaller surface electrode area than said relatively large surface area used for sensing and resulting from the combination of said first and second electrodes.
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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) | 1992-07-17 | 1993-01-16 | 1993-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-17 | 1997-01-16 | 1997-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-17 | 2001-01-16 | 2001-07-18 | $7700.00 | Window Closed / Lapsed |