Patent US3837333A successfully refreshed from Google Patents.
US3837333A
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US
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Heart surveillance device
Assignee: Individual
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Filing: 1973-04-19
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Granted: 1974-09-24
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Expires: 1993-04-19
Abstract
Abstract A device which monitors the interval between every other heartbeat to determine if the heart rate is too fast or too slow. The previously monitored interval is compared to the present interval to determine whether there has been an abrupt change of heart rate and if there has been a change of heart rhythm. Time intervals are measured digitally using a first pulse train and the determinations are made digitally between two pulses of said first pulse train under the control of a second pulse train. The occurrence of every heart beat is monitored to determine if the heart has stopped beating.
Inventors
- 👤 A Bruckheim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:23
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/02; A61B5/024; A61B5/0245; A61B5/02455
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
129 words
A device for monitoring heart rate comprising: means responsive to every other heart beat for producing a signal proportional to time therebetween; means for storing said time signal; means for establishing a first, second and third reference signals; means for comparing said time signal with said first reference signal and with said second reference signal and producing a first output signal when said times signal is greater than said first reference signal or less than said second reference signal; means for comparing said time signal, a previously stored time signal, and said third reference signal and producing a second output signal when difference between said time signal and said previously stored signal exceeds said third reference signal; and means for indicating presence of said first or second output signals.
Claim 2
Independent Claim
129 words
A device for monitoring heart rate comprising: means responsive to every other heart beat for producing a signal proportional to time therebetween; means for storing said time signal; means for establishing a first, second and third reference signals; means for comparing said time signal with said first reference signal and with said second reference signal and producing a first output signal when said times signal is greater than said first reference signal or less than said second reference signal; means for comparing said time signal, a previously stored time signal, and said third reference signal and producing a second output signal when difference between said time signal and said previously stored signal exceeds said third reference signal; and means for indicating presence of said first or second output signals.
Claim 3
Dependent Claim
30 words
A device as in claim 1 including means for measuring time between every heartbeat, and for producing a third output signal when said measured time exceeds a first reference value.
Claim 4
Dependent Claim
34 words
A device as in claim 2 including means responsive to said second output signal for producing a fourth output signal if said second output signal does not reoccur in a predetermined period of time.
Claim 5
Dependent Claim
20 words
A device as in claim 3 wherein said indicating means instantaneously indicates presence of said third or fourth output signals.
Claim 6
Dependent Claim
31 words
A device as in claim 4 wherein said indicating means provides an indication of the presence of said first or said second output signals for at least three consecutive time signals.
Claim 7
Dependent Claim
87 words
A device as in claim 1 wherein said first output signal comprises a fifth output signal for a time signal greater than said first reference signal and a sixth output signal for a time signal less than said second reference signal, and said indicating means providing an indication for presence of said second output signal for at least three consecutive time signals, of said fifth output signal for at least three consecutive time signals, and of said sixth output signal for at least three consecutive time signals.
Claim 8
Dependent Claim
76 words
A device as in claim 1 wherein said means for comparing said time signal, said stored time signal and said third reference signal comprises means for determining which is larger, said time signal or said stored time signal, means for adding said third reference signal to the non-larger time signal, and means for producing said second output signal when the sum of said third reference signal plus said non-larger time signal exceeds said larger time signal.
Claim 9
Independent Claim
189 words
A device for monitoring heart rate comprising: a first clock means for producing a first series of pulses at a first rate; a second clock means for producing a second series of pulses at a rate slower than said first rate; a first pulse accumulator means for accumulating said second series of pulses; a storage means for storing a previous accumulated count; first comparison means for comparing said accumulated count with a first and a second reference count and producing a first output if said accumulated count exceeds said first reference and a second output if said second reference exceeds said accumulated count; second comparison means for comparing said accumulated count and said stored accumulated count and prOducing a third output if said accumulated counts differ by a predetermined value; and control means responsive to every other heartbeat to produce a series of control pulses at said first pulse rate for stopping said first pulse accumulation, transferring said accumulated pulses to said storage means, and activating said first and second comparison means between a last pulse of accumulated count and a next pulse of said second series of pulses.
Claim 10
Independent Claim
189 words
A device for monitoring heart rate comprising: a first clock means for producing a first series of pulses at a first rate; a second clock means for producing a second series of pulses at a rate slower than said first rate; a first pulse accumulator means for accumulating said second series of pulses; a storage means for storing a previous accumulated count; first comparison means for comparing said accumulated count with a first and a second reference count and producing a first output if said accumulated count exceeds said first reference and a second output if said second reference exceeds said accumulated count; second comparison means for comparing said accumulated count and said stored accumulated count and prOducing a third output if said accumulated counts differ by a predetermined value; and control means responsive to every other heartbeat to produce a series of control pulses at said first pulse rate for stopping said first pulse accumulation, transferring said accumulated pulses to said storage means, and activating said first and second comparison means between a last pulse of accumulated count and a next pulse of said second series of pulses.
Claim 11
Dependent Claim
39 words
A device as in claim 8 including a second pulse accumulator means for accumulating said second series of pulses and for producing a fourth output at a predetermined accumulated count; said second pulse accumulator being reset at every heartbeat.
Claim 12
Dependent Claim
36 words
A device as in claim 8 including a timing means initiated by a first third output and reset by a subsequent third output for producing a fifth output if not reset before a preset time period.
Claim 13
Dependent Claim
28 words
A device as in claim 8 including an indicator means for indicating the existance of said first or second or third output for at least three accumulated counts.
Claim 14
Dependent Claim
76 words
A device as in claim 8 wherein said control means initiates on a first control pulse said first comparison means for said first output, initiates on a second control pulse said first comparison means for said second output, initiates on a third control pulse said second comparison means for said third output, transfers on a fifth control pulse said accumulated count to said storage means, and clearing on a sixth control pulse said first accumulator means.
Claim 15
Independent Claim
118 words
A device for monitoring heart rate comprising: means for measuring heart rate over a period defined by alternate heart beats; means for storing a previous measured heart rate; means responsive to said measured heart rate for producing a first output when said measured heart rate is below a first predetermined value; means responsive to said measured heart rate for producing a second output when said measured heart rate is above a second predetermined value; means responsive to said measured heart rate and said stored heart rate for producing a third output for a rate change above a third predetermined value; and means for indicating the existence for at least three consecutive periods of any one of said outputs.
Claim 16
Independent Claim
118 words
A device for monitoring heart rate comprising: means for measuring heart rate over a period defined by alternate heart beats; means for storing a previous measured heart rate; means responsive to said measured heart rate for producing a first output when said measured heart rate is below a first predetermined value; means responsive to said measured heart rate for producing a second output when said measured heart rate is above a second predetermined value; means responsive to said measured heart rate and said stored heart rate for producing a third output for a rate change above a third predetermined value; and means for indicating the existence for at least three consecutive periods of any one of said outputs.
Claim 17
Dependent Claim
54 words
A device as in claim 13 including: means for producing a fourth output when a heartbeat does not occur within a first predetermined time; means responsive to said third output for producing a fifth output for a change of rhythm; and said indicator means indicating the existence of said fourth or fifth output immediately.
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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) | 1977-09-23 | 1978-03-25 | 1978-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-23 | 1982-03-25 | 1982-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-23 | 1986-03-25 | 1986-09-24 | $7700.00 | Window Closed / Lapsed |