US4457312A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for providing records of events during a cardiac arrest
Assignee: University of Nebraska System
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Filing: 1982-03-29
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Granted: 1984-07-03
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Expires: 2002-03-29
Abstract
Abstract To provide accurate reconstructable records of the events and therapy administered during a cardiac arrest, flow sheets are attached to the top of a timing clipboard. Each row of the flow sheet matrix indicates a different event and the columns indicate the time of events. The clipboard illuminates columns at intervals in the range of fifteen seconds to five minutes in a timed sequence across the flow sheet by energizing electroluminescent trips underneath the flow sheet to permit the nurse to indicate the events in the column corresponding to the time of the event. Other sensed data is recorded on a tape with timing signals for later reconstruction. When all of the columns have been covered, an alarm is sounded so that a new flow sheet may be attached. The page of the flow sheet is indicated on the clipboard for translation onto the flow sheet.
Inventors
- 👤 Joseph P. Ornato
- 👤 Larry Fennigkoh
- 👤 Colleen S. Jaeger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:37
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/18; A61N1/32; A61N1/36; A61N1/362; A61N1/37; A61N1/3702; A61B; A61B5/00; A61B5/24; A61B5/316; A61B5/318; A61B5/333; G; G01; G01D; G01D9/00; G01D9/02; G01D9/10
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
192 words
A method of providing records of events during a cardiac arrest comprising the steps of: generating timing signals at preset intervals, which intervals have a duration within the range of fifteen seconds and five minutes; indicating sections of a chart, each having an area of at least 0.5 square centimeters in a time sequence corresponding to the time sequence of said timing signals; recording observations on said chart at the indicated sections; automatically sensing electrocardiographic data signals; recording said automatically sensed electrocardiographic data signals as electrical signals with a predetermined frequency, which electrical signals have at least one characteristic which may change under some circumstances at unpredictable time periods which are greater than the period of said frequency of said signals but are less than the intervals between said timing signals; the step of generating timing signals including generating timing signals having intervals greater than the time periods between changes in the characteristic of said electrical signals; and recording said timing signals with said automatically sensed electrocardiographic data signals, whereby the time said data was sensed is indicated and said sensed electrocardiographic data signals may be coordinated in time with said observations.
Claim 2
Independent Claim
192 words
A method of providing records of events during a cardiac arrest comprising the steps of: generating timing signals at preset intervals, which intervals have a duration within the range of fifteen seconds and five minutes; indicating sections of a chart, each having an area of at least 0.5 square centimeters in a time sequence corresponding to the time sequence of said timing signals; recording observations on said chart at the indicated sections; automatically sensing electrocardiographic data signals; recording said automatically sensed electrocardiographic data signals as electrical signals with a predetermined frequency, which electrical signals have at least one characteristic which may change under some circumstances at unpredictable time periods which are greater than the period of said frequency of said signals but are less than the intervals between said timing signals; the step of generating timing signals including generating timing signals having intervals greater than the time periods between changes in the characteristic of said electrical signals; and recording said timing signals with said automatically sensed electrocardiographic data signals, whereby the time said data was sensed is indicated and said sensed electrocardiographic data signals may be coordinated in time with said observations.
Claim 3
Dependent Claim
40 words
A method according to claim 1 which said step of indicating sections of a chart includes the step of indicating elongated sections forming columns, each corresponding to a time increment and having along their length other indications specifing different conditions.
Claim 4
Dependent Claim
30 words
A method ancillary to claim 2 in which said step of indicating sections of a chart includes the step of indicating sections having a length of at least three inches.
Claim 5
Dependent Claim
33 words
A method according to claim 3 including the steps of: generating an audible signal after a predetermined number of timing signals have elapsed; and changing the chart after the audible signal is generated.
Claim 6
Dependent Claim
32 words
A method according to claim 4 in which the step of recording said automatically sensed electrocardiographic data signals includes the step of recording said automatically sensed electrocardiographic data signals on magnetic tape.
Claim 7
Dependent Claim
42 words
A method according to claim 5 in which: the step of indicating includes the step of indicating columns having a length of approximately 8 inches; and the step of generating includes the step of generating timing signals at intervals of one minutes.
Claim 8
Dependent Claim
33 words
A method according to claim 2 including the steps of: generating an audible signal after a predetermined number of timing signals have elapsed; and changing the chart after the audible signal is generated.
Claim 9
Dependent Claim
202 words
Apparatus comprising: means for generating timing signals at preset intervals, which intervals have a duration within the range of fifteen seconds and five minutes; a chart having sections, said sections having an area of at least 0.5 square centimeters; means for indicating sections of said chart in a time sequence corresponding to the time sequence of said timing signals, whereby observations may be recorded on said chart at the time the sections are indicated; electrocardiographic means for automatically sensing electrocardiographic data signals; means for recording said automatically sensed electrocardiographic data signals as electrical signals with a predetermined frequency, which electrical signals have at least one characteristic which may change under some circumstances at unpredictable time periods which are greater than the period of said frequency of said signals but are less than the intervals between said timing signals; the means for generating timing signals including the means for generating timing signals having intervals greater than the time periods between changes in the characteristic of said electrical signals; and means for recording said timing signals with said automatically sensed electrocardiographic data signals, whereby the time said data was sensed is indicated and said sensed data may be coordinated in time with said observations.
Claim 10
Dependent Claim
202 words
Apparatus comprising: means for generating timing signals at preset intervals, which intervals have a duration within the range of fifteen seconds and five minutes; a chart having sections, said sections having an area of at least 0.5 square centimeters; means for indicating sections of said chart in a time sequence corresponding to the time sequence of said timing signals, whereby observations may be recorded on said chart at the time the sections are indicated; electrocardiographic means for automatically sensing electrocardiographic data signals; means for recording said automatically sensed electrocardiographic data signals as electrical signals with a predetermined frequency, which electrical signals have at least one characteristic which may change under some circumstances at unpredictable time periods which are greater than the period of said frequency of said signals but are less than the intervals between said timing signals; the means for generating timing signals including the means for generating timing signals having intervals greater than the time periods between changes in the characteristic of said electrical signals; and means for recording said timing signals with said automatically sensed electrocardiographic data signals, whereby the time said data was sensed is indicated and said sensed data may be coordinated in time with said observations.
Claim 11
Dependent Claim
28 words
Apparatus according to claim 8 in which said sections are elongated columns each corresponding to a timing signal and having along their lengths rows corresponding to different conditions.
Claim 12
Dependent Claim
27 words
Apparatus according to claim 8 in which: said chart includes a flow chart; and said means for indicating includes means for indicating sections of said flow chart.
Claim 13
Dependent Claim
20 words
Apparatus according to claim 10 in which said means for indicating includes means for illuminating sections of said flow chart.
Claim 14
Dependent Claim
14 words
Apparatus according to claim 11 further comprising means for recording said automatically sensed information.
Claim 15
Dependent Claim
14 words
Apparatus according to claim 12 further including means for periodically emitting an audible alarm.
Claim 16
Dependent Claim
13 words
Apparatus according to claim 13 in which said timing signals are electrical signals.
Claim 17
Dependent Claim
21 words
Apparatus according to claim 14 in which said means for indicating includes programmable means for indicating said sections at programmable periods.
Claim 18
Dependent Claim
26 words
Apparatus according to claim 15 in which said indicating means includes counters for determining said predetermined periods and electroluminescent lamp means for illuminating said flow charts.
Claim 19
Dependent Claim
55 words
Apparatus according to claim 16 in which said alarm means includes counter means for counting a predetermined number of timing pulses and audible means for sounding an alarm after a predetermined number of said timing pulses corresponding to the numbered sections on said flow chart, whereby a signal is given to change a flow chart.
Claim 20
Dependent Claim
36 words
Apparatus according to claim 17 in which said flow sheet includes columns for receiving observed data and said electroluminescent means includes means for exciting strips of said electroluminescent means beneath said columns in said predetermined sequence.
Claim 21
Dependent Claim
34 words
Apparatus according to claim 18 further including a plurality of lamps and means for illuminating the lamp indicating the number of predetermined periods that have elapsed, whereby the page of flow sheets is indicated.
Claim 22
Dependent Claim
18 words
Apparatus according to claim 19 in which said flow sheet includes a list of events for cardiac arrest.
Claim 23
Dependent Claim
22 words
Apparatus according to claim 20 in which said means for indicating forms a portion of a clipboard adapted to underlie flow sheets.
Claim 24
Dependent Claim
16 words
Apparatus according to claim 21 further including means for recording automatically sensed signals on magnetic tape.
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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) | 1987-07-03 | 1988-01-02 | 1988-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-07-03 | 1992-01-02 | 1992-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-07-03 | 1996-01-02 | 1996-07-03 | $7700.00 | Window Closed / Lapsed |