US5490862A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Atrial defibrillator having patient activated modality
Assignee: Cardiac Pacemakers Inc
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Filing: 1994-09-15
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Granted: 1996-02-13
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Expires: 2014-09-15
Abstract
Abstract An atrial defibrillator implantable beneath the skin of a patient includes an intervention sequencer for performing an intervention sequence. The intervention sequencer includes an atrial fibrillation detector for determining if atrial fibrillation is present in a patient's heart and a cardiovertor for applying cardioverting electrical energy to the atria of the patient's heart if the atrial fibrillation detector determines that atrial fibrillation is present. A sequence initiating stage includes a receiver for receiving a sequence command generated from external to the patient. The sequence initiating stage causes the intervention sequencer to perform the intervention sequence upon receipt of a sequence command.
Inventors
- 👤 John M. Adams
- 👤 Clifton A. Alferness
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:04
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/05; A61N1/056; A61N1/0563; A61N1/18; A61N1/32; A61N1/38; A61N1/39; A61N1/3918; A61N1/3956; A61N1/3962; A61N1/39622; A61N1/395; A61N1/3987; A61N2001/0585
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
83 words
An atrial defibrillator implantable beneath the skin of a patient comprising: intervention sequence means for performing an intervention sequence, said intervention sequence means including an atrial fibrillation detector for determining if atrial fibrillation is present in a patient's heart and cardioverting means for applying cardioverting electrical energy to the atria of the patient's heart; and sequence initiating means including receiving means for receiving a sequence command generated from external to the patient for causing the intervention sequence means to perform the intervention sequence.
Claim 2
Dependent Claim
83 words
An atrial defibrillator implantable beneath the skin of a patient comprising: intervention sequence means for performing an intervention sequence, said intervention sequence means including an atrial fibrillation detector for determining if atrial fibrillation is present in a patient's heart and cardioverting means for applying cardioverting electrical energy to the atria of the patient's heart; and sequence initiating means including receiving means for receiving a sequence command generated from external to the patient for causing the intervention sequence means to perform the intervention sequence.
Claim 3
Dependent Claim
96 words
An atrial defibrillator implantable beneath the skin of a patient comprising: intervention sequence means for performing an intervention sequence, said intervention sequence means including an atrial fibrillation detector for first determining if atrial fibrillation is present in a patient's heart and cardioverting means for next applying cardioverting electrical energy to the atria of the patient's heart if the atrial fibrillation detector determines that atrial fibrillation is present; and sequence initiating means including receiving means for receiving a sequence command generated from external to the patient for causing the intervention sequence means to perform the intervention sequence.
Claim 4
Dependent Claim
96 words
An atrial defibrillator implantable beneath the skin of a patient comprising: intervention sequence means for performing an intervention sequence, said intervention sequence means including an atrial fibrillation detector for first determining if atrial fibrillation is present in a patient's heart and cardioverting means for next applying cardioverting electrical energy to the atria of the patient's heart if the atrial fibrillation detector determines that atrial fibrillation is present; and sequence initiating means including receiving means for receiving a sequence command generated from external to the patient for causing the intervention sequence means to perform the intervention sequence.
Claim 5
Dependent Claim
16 words
An atrial defibrillator as defined in claim 2 wherein said receiving means includes a read switch.
Claim 6
Dependent Claim
35 words
An atrial defibrillator as defined in claim 2 further including means for maintaining the intervention sequence means in an inactive state and wherein the intervention sequence means is activated only by said sequence initiating means.
Claim 7
Dependent Claim
78 words
An atrial defibrillator as defined in claim 2 further including programming means responsive to mode commands generated from external to the patient, said programming means being responsive to a patient activated mode command for causing said sequence initiating means to activate said intervention sequence means only in response to said sequence command generated from external to the patient and an automatic mode command for causing said sequence initiating means to activate said intervention sequence means at predetermined times.
Claim 8
Dependent Claim
98 words
An atrial defibrillator as defined in claim 2 further including programming means responsive to mode commands generated from external to the patient, said programming means being responsive to a patient activated mode command for causing said sequence initiating means to activate said intervention sequence means only in response to said sequence command generated from external to the patient and responsive to a combined automatic and patient activated mode command for causing said sequence initiating means to activate said intervention sequence means both in response to said sequence command generated from external to the patient and at predetermined times.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-02-12 | 1999-08-14 | 2000-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-02-12 | 2003-08-14 | 2004-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-02-12 | 2007-08-14 | 2008-02-13 | $7700.00 | Window Closed / Lapsed |