CN105078422A - Method and equipment based on pulse blood oxygen technology to monitor cardio-pulmonary resuscitation) pressing interruption time - Google Patents
Method and equipment based on pulse blood oxygen technology to monitor cardio-pulmonary resuscitation) pressing interruption time Download PDFInfo
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Abstract
The invention provides a method and equipment based on pulse blood oxygen technology to monitor cardio-pulmonary resuscitation) pressing interruption time and discloses a pulse wave processing method. The pulse wave processing method includes: processing a tested signal which reflects realtime pulse characteristic of a test receiver; performing pulse wave recognition according to processing result; statistically analyzing pulse wave interruption time according to recognition result; outputting statistical information. The invention further discloses medical equipment for pulse wave processing. In a specific embodiment, the pulse wave interruption time is statistically analyzed according to the pulse wave recognition result, and the statistical information is output, so that medical staff can directly acquire the statistical information. Compared with the prior art in which pulse waves are judged by observing waveforms of the pulse waves through human eyes, the method has the advantages that information of the pulse wave interruption time can be displayed visually, and doctors can be reminded of paying attention to avoiding potential danger so as to increase cardio-pulmonary resuscitation success rate.
Description
Technical field
The application relates to the application and relates to medical field, particularly relates to a kind of pulse wave processing method, device and armarium.
Background technology
Cardiovascular disease has become mankind's morbidity and the dead main cause of disease, causes the whole world about 17,000,000 people dead every year, wherein manyly shows as sudden cardiac death.Sudden cardiac death has become the important killer threatening human life health, and the most effective and direct medical procedure is exactly cardio-pulmonary resuscitation (CPR) for this situation.CPR produces blood flow by increasing intrathoracic pressure (breast pump mechanism) or directly extruding heart (heart pump mechanism), makes oxygen delivery arrive brain and other vital organs, thus sets up provisional artificial circulation.
Under the state that patient does not have spontaneous circulation to recover, should high-quality external chest compression be carried out, and reduce interruption as much as possible.ACC in 2013 recommends the external chest compression time to account for total rescue time should lower than 80%.Due to tracheal intubation, operation such as replacing pressing person, electric defibrillation etc. in external chest compression process, pressing is often caused to be interrupted.Too much interruption external chest compression, can cause coronary perfusion drops, thus causes spontaneous circulation recovery rate to decline, even if spontaneous circulation recovers also to reduce function of nervous system at a specified future date learn prognosis.There is no a simple and easy to do monitoring means at present find and remind rescuer to press interruption situation, make cardio-pulmonary resuscitation Quality Down, be difficult to reach desirable rescue effect.Patient for cardiac arrest is carrying out in external chest compression process, and oxygen saturation monitor can demonstrate the blood flow impulse waveform caused by pressing, if Herba Clinopodii impulse waveform disappears at once in pressing.Conventional oxygen saturation monitor generally can only display pulse waveform, need being judged, directly cannot carry out early warning to pressing the break period by eye-observation pulse waveform.
Summary of the invention
The application provides a kind of pulse wave processing method, device and armarium.
According to the first aspect of the application, the application provides a kind of pulse wave processing method, comprising:
Measured signal is processed, the real-time pulse characteristics of described measured signal reflection measured;
Pulse wave identification is carried out according to result;
Add up during tranquil to pulse wave according to recognition result;
Export statistical information.
According to the second aspect of the application, the application provides a kind of pulse wave blood processor, comprising:
AD conversion unit, for processing measured signal, the real-time pulse characteristics of described measured signal reflection measured;
Digital signal processing unit, for carrying out pulse wave identification according to result, and tranquil to pulse wave according to recognition result during add up;
Output unit, for exporting statistical information.
According to the third aspect of the application, the application provides a kind of armarium, comprising:
Light emission receptor, it comprises luminous tube and receiving tube, and described luminous tube launches at least one road optical signal be used for through tissue, and described receiving tube receives at least one road optical signal through tissue, and transfers at least one road signal of telecommunication to;
Digital processing unit, for the described signal of telecommunication is converted to digital signal, and processes described digital signal, carries out pulse wave identification according to result, and tranquil to pulse wave during add up;
Output module, for exporting statistical information.
Owing to have employed above technical scheme, the beneficial effect that the application is possessed is:
(1) in the detailed description of the invention of the application, owing to adding up during tranquil to pulse wave to the recognition result of pulse wave, and export statistical information, make medical personnel directly can obtain statistical information, relative in prior art, by eye-observation pulse waveform, pulse wave is judged, the application can intuitively display pulse ripple tranquil during information, doctor can be reminded to note avoiding potential danger, be beneficial to improve success of cardiopulmonary resuscitation rate.
(2) in the detailed description of the invention of the application, because the statistical information exported comprises the duration of pulse wave tranquil time, doctor can being made to monitor the time stopping pressing, can avoiding making patient produce danger because stopping the time of pressing to exceed schedule time.
(3), in the detailed description of the invention of the application, what comprise the statistics pulse wave tranquil time due to the statistical information exported always accounts for time ratio, can remind doctor intuitively, doctor is avoided because subjective factors or carelessness make the danger that causes than reducing of external chest compression time.
Accompanying drawing explanation
Fig. 1 is the flow chart in one embodiment of application method;
Fig. 2 be in a kind of embodiment artificial/mechanical compression state change schematic diagram;
Fig. 3 is the high-level schematic functional block diagram in one embodiment of the application's device.
Detailed description of the invention
By reference to the accompanying drawings the application is described in further detail below by detailed description of the invention.
Embodiment one:
As shown in Figure 1, the pulse wave processing method of the application, its a kind of embodiment, comprises the following steps:
Step 102: measured signal is processed, the real-time pulse characteristics of measured signal reflection measured.Wherein measured signal is processed, specifically comprises:
Ripple components and constant component is identified from measured signal;
Pulse wave is generated based on ripple components.
The application can set up time slip-window, display pulse ripple in time slip-window.
Step 104: carry out pulse wave identification according to result.
Under the state that patient does not have spontaneous circulation to recover, should high-quality external chest compression be carried out, and reduce interruption as much as possible.Carry out tracheal intubation in artificial pressing process or change the factors such as pressing person, usually causing pressing to be interrupted.Up-to-date cardio-pulmonary resuscitation guide proposes external chest compression time ratio should more than 80%, and external chest compression interrupts more than 10s, to cross and interrupt pressing for a long time, will significantly reduce spontaneous circulation recovery rate.And in actual clinical rescue situation, interruption compressing time can not be monitored, can not remind in time healthcare givers, usually caused pressing for a long time interruption, external chest compression time scale declines, and is unfavorable for the recovery of patient's spontaneous circulation.
Based on the prerequisite of patient without spontaneous circulation, artificial pressing extruding heart, can produce heartthrob, will form blood circulation at finger tip.And this pressing is once stop, blood circulation will disappear.Show as at oximeter system: pressing exists, and has pulse wave signal, pressing stops, and pulse wave disappears.Therefore, by the change of pulse wave, identify pulse wave artificial/mechanical compression state.Manually described herein/mechanical compression state comprises pressing persistent state and pressing intermittent condition.When artificial/mechanical compression state is for pressing persistent state, pulse wave continues; When artificial/mechanical compression state is for pressing intermittent condition, pulse wave is tranquil.
The identification of pulse wave can be identified by the amplitude (Amplitude) of single pulse and width (Width).Amplitude is AC AC compounent, and width is the mapping of the sampling number of single pulse frequency.The mapping relations of sampling number and frequency, pulse are:
for pulse number of times per minute (unit: secondary/per minute),
for single pulse frequency,
for blood oxygen signal sample rate,
for the pulsewidth of single pulse, i.e. sampling number.Time domain area index is also realize based on the width of single pulse.
Traditional method only extracts amplitude and the width information of single pulse wave, just can be used for determining whether once complete pulse wave.Under the adverse circumstances that clinical pressing is rescued, interference may increase the difficulty of pulse wave identification, only relies on amplitude and width information, may occur identifying phenomenon by mistake.
In one embodiment, carry out pulse wave identification to comprise:
Get multiple single pulse wave, by the change of multiple single pulse wave, during identifying that pulse wave is tranquil.
In one embodiment, at least can get 3 continuous print single pulse waves, by the change of single pulse wave area value or the change of single pulse waveform, during identifying that pulse wave is tranquil.
For promoting the recognition correct rate of pulse wave/non-pulse wave, more characteristic information aid identification can be adopted.In one embodiment, by the method such as dependency of the fluctuation change of the area value of multiple (as being more than or equal to 3) single pulse wave continuously or the waveform morphology of multiple (as being more than or equal to 3) single pulse wave continuously, by these additional methods, the discrimination of pulse and pulselessness states can be increased substantially, reduce the impact of clinical interference on parameter measurement.
Step 106: add up during tranquil to pulse wave according to recognition result;
In this application, pulse wave tranquil during be artificial/mechanical compression intermission.
In one embodiment, according to recognition result, pulse wave tranquil period is added up, comprising: the duration of statistics pulse wave tranquil time.
In another embodiment, according to recognition result, pulse wave tranquil period is added up, also comprises:
The statistics pulse wave tranquil time always account for time ratio, than the ratio operating duration for the accumulation duration of pulse wave tranquil period and cardio-pulmonary resuscitation during always the accounting for of pulse wave tranquil time.
In another embodiment, according to recognition result, pulse wave tranquil period is added up, also comprises:
Pre-set first threshold and Second Threshold;
When the duration of pulse wave tranquil period is greater than first threshold, output alarm information;
And/or when the pulse wave tranquil time always account for that time, ratio was greater than Second Threshold time, output alarm information.
When the application is by realizing amounting to under type: 1. give tacit consent to patient's folder when putting on probe, namely start timing, vacant automatic clear (probe is the medium gathering patient's physiological signal) when not meeting patient of popping one's head in; 2. startup and stop button are set, in use, are realized by doctor, nurse operation, during application, click " startup ", namely start total time timing, click " stopping ", namely stop total time timing statistics.
Terminate in artificial/mechanical compression intermission, artificial/mechanical compression state transfers manually/mechanical compression persistent state to, when namely again occurring pressing corrugating, then not-time.
In one embodiment, the pulse wave tranquil time always accounts for time ratio, calculates especially by following formula:
Wherein,
for the sampled point cumulative statistics of artificial/mechanical compression process;
for occurring in artificial/mechanical compression process that the sampling number of artificial/machinery intermission is according to cumulative statistics; Wherein p=1,2,3 ... P, p refer to the p time artificial/machinery intermission; P refer to N point length artificial/mechanical compression process in occur artificial/machinery the intermission total degree; Q=1,2,3 ... Q, q are the q point in the p time CPR intermission, Q refer to the p time artificial/machinery intermission continue always count.
Step 108: export statistical information.The application can show statistical information on a display screen.
In the identification of single pulse wave signal accurately basis, the pulse wave processing method of the application, its another kind of embodiment, comprises the following steps:
Step 202: set up time slip-window, the pulse wave state in integrated survey window, the time of time slip-window can be arranged according to practical situation, and the application's default setting is 10S; As D(and SlipWindow in Fig. 2) shown in.
Step 204: judge pulse wave state in time slip-window, and carry out other new operations according to status recognition.Whether consider from response speed and stability angle, the application gives tacit consent to measurement >=3 pulse wave feature, and be artificial/mechanical compression persistent state or artificial/mechanical compression intermittent condition with this decision-making.As shown in the figure, at A(and CPRDuration1) state and C(and CPRDuration2) in state, by >=3 pulse wave feature analysis, be identified as artificial/mechanical compression pulse wave, then can not start the timing statistics of pulse wave tranquil time.
Step 206: when sampled signal enters pulselessness states, the tranquil time timing of pulse wave will start.Time timing is accumulated according to sampling number, and each periodic sampling rate is 1S.Finally show as artificial/mechanical compression intermission time second timing.As B(and IntervalWithoutCPR in figure) in section, shown in label " 1 " position.Start CPR intermittent time timing from this position, and this information is supplied to client.Terminate in artificial/mechanical compression intermittent time, when namely again occurring pressing corrugating, CPR intermittent time timing Presentation Function stops, and resets reset.
In actual applications, as mentioned above, based on the principle weighing >=3 pulse wave feature, when entering pulselessness states, whether the data that also can continue to weigh >=3 pulse wave length are pulseless data, with this recognition result for foundation, judge whether to enter artificial/mechanical compression intermission.This just means manually/there is retarding characteristic in mechanical compression intermittent time timing Presentation Function.In like manner, entering manually from artificial/mechanical compression intermission/the mechanical compression stage time, be subject to the impact that pulse wave identification judges, manually/mechanical compression intermittent time timing Presentation Function can exist a period of time, after identifying pressing pulse wave, timing Presentation Function just can be closed and be reset reset.As shown in Figure 2, statistics is artificial/and the timing display of mechanical compression time can not occur in the position of such as figure grade " 1 ", but appear in the position of label " 2 ".In like manner, entering the C stage, the time that CPR intermittent time timing display can continue >=3 pulse just can close and reset reset.
The retarding characteristic of manually/mechanical compression intermittent time timing Presentation Function, depends on the width of identified pulse wave, i.e. pulse frequency.Pulse frequency is higher, and the time needed for identification is shorter, otherwise identifies that required time is longer.The application gives tacit consent to analysis >=3 pulse wave, and physiology pulse wave scope is [20 ~ 300] BPM(, and corresponding pulse frequency is [0.33 ~ 5] Hz), it can thus be appreciated that the response speed that the application is identifying artificial/mechanical compression intermittent time is 9S ~ 0.6S;
refer to analysis at least 3 pulse cycles,
refer to the frequency that identifiable design pulsewidth covers.
According to CPR guide, compression frequency must meet >=100 beat/min, brings above-mentioned formula into, calculates known, is about 1.64S and identifiable design pressing waveform state.Therefore, in clinical practice, in the application artificial/typical response time mechanical compression intermittent time is 1.64S, can meet clinical in time responsive especially requirement, improve the accuracy of medical treatment, increase the chances of survival of patient.
Step 208: if when the pulse wave tranquil time exceedes threshold value, report to the police.Numerous research shows, when the CPR intermittent time is more than 10S, there is impact to patient's physiology.Therefore the tranquil time statistical function of the pulse wave of the application, arranges 10S time threshold.If timing time >10S, gives prompt messages.
Step 210: the calculating pulse wave tranquil time always accounts for time ratio, its corresponding CPR intermittent time total accounting.According to guidelines, when the intermittent time accounts for overall artificial/mechanical compression rescue time more than 20%, this patient agree to there will be that all rescue measures proved ineffectual.The application sets up the CPR intermittent time and always accounts for time ratio
concept, in order to reflect this feature.Computing formula is as follows:
it is the sampled point cumulative statistics of artificial/mechanical compression process;
occur that the sampling number of CPR intermission is according to cumulative statistics in artificial/mechanical compression process; Wherein p=1,2,3 ... P, p refer to the p time occur the CPR intermission; P refer to N point length artificial/mechanical compression process in the total degree of CPR intermission that occurs; Q=1,2,3 ... Q, q refer to the q point in the p time CPR intermission, Q refer to the p time CPR intermission continue always count.
Aforementioned known, there is corresponding relation in sample rate and time, the application's
in parameter, because molecule and denominator need to be converted to the time simultaneously, and both sample rates are consistent, and therefore in this formula, the sample rate factor is eliminated,
with time substantial equivalence, it reflects the accounting rate of CPR intermittent time in manually total/mechanical compression time.
In actual applications,
parameter can Real-time and Dynamic upgrade.Namely, in artificial/mechanical compression rescue process, oximeter system often collects a sampled point, namely includes in
in statistics; Simultaneously according to aforementioned decision logic, identify whether this sampled point is included in
in statistics.Thus each sampled point, than all refreshing when CPR always accounts for.The application's acquiescence refreshes according to sample rate, namely refreshes once result in 1S.As shown in figure " CPRIntervalRatio ", along with artificial/mechanical compression starts,
just appear in display interface.
From aforementioned, in identifying, need to identify >=3 pulse wave cycle length could judge it is pressed state or intermittent condition, therefore
show also life period hysteresis quality, namely show in figure 3 and 4 positions.Theory is 3 positions, and actual is 4 positions.This delayed typical time period is 1.64S.
In the cycle more whole than manually adjoint/mechanical compression when the CPR intermittent time always accounts for, until manually/mechanical compression state is reset, when the CPR intermittent time always accounts for, Bizet can stop display.Therefore, two kinds of mechanism are had can to reset CPR intermittent time accounting rate: 1. in artificial/mechanical compression process, recognize autonomous cardiac rhythm recover; 2. external trigger reset mechanism (such as: the SR of monitor).
Step 210: export statistical information.Export statistical information by display screen, time as tranquil in display pulse ripple and/or pulse wave tranquil time always account for time ratio.
Above method is the feature detection realized based on the recognition methods of time domain pulse wave.Because time domain and frequency spectrum exist preservation of energy feature, therefore, the detection identification of above-mentioned feature also can be realized based on frequency domain method.Frequency domain analysis depends on the length of analytical data.Data are long, and the feature of reflection physiological signal variation tendency is slack-off, and data are too short, easily occur that the frequency-domain analysis that precision causes not is invalid.In this application, in conjunction with clinical practice scene, be set as the frequency domain data analysis length of 4S, i.e. the data length of frequency-domain analysis is each time 4S.For following the tracks of the change of physiological signal fast, frequency-domain analysis is set as that 0.5S starts once.
The width of time domain pulse wave and amplitude characteristic, can be quantified as amplitude and the width at frequency-region signal intermediate frequency spectrum peak.Therefore, the application can use amplitude or the area parameters of spectral peak, weighs artificial/mechanical compression gap phase and artificial/mechanical compression intermittent time accounting rate.When there is CPR intermission, along with every 0.5S analysis once, spectral peak amplitude or area there will be the feature decayed gradually.Therefore can set up amplitude or area threshold line, whether detect 4 (i.e. 2S) spectral peak amplitudes or area all lower than threshold line, if lower than threshold line, then think artificial/mechanical compression intermission, otherwise keep artificial/mechanical compression state.
With temporal analysis same principle, there is displaying time hysteresis quality in artificial/mechanical compression intermission, this hysteresis quality depends on the interval time of frequency-domain analysis, and analysis times.The application's frequency-domain analysis interval time is 0.5S, analyzes 4 times, and therefore typical case is 2S lag time.The minimum resolution of CPR intermission retrains by frequency-domain analysis interval time, is 0.5S.Recognize artificial/mechanical compression intermittent condition time, start the time timing display of artificial/mechanical compression intermission, recognize artificial/mechanical compression state time, artificial/time mechanical compression intermission clocking capability is closed.With temporal analysis same principle, in artificial/mechanical compression process, artificial/mechanical compression intermittent time accounting rate (CPR intermittent time total accounting also namely mentioned above) namely starts timing statistics.Every 0.5S frequency-domain analysis, total timing time will be accumulated, and determines whether the CPR intermission simultaneously, and accumulates CPR time intermission.The CPR intermittent time accounting rate=CPR intermission time/total timing time * 100%.The minimum resolution of CPR intermittent time accounting rate retrains by frequency-domain analysis interval time, is 0.5S.It starts and reset mechanism and domain portion describe machine-processed completely the same.
Embodiment two:
As shown in Figure 3, the pulse wave blood processor of the application, its a kind of embodiment, comprising: AD conversion unit, for processing measured signal, the real-time pulse characteristics of measured signal reflection measured; Digital signal processing unit, for carrying out pulse wave identification according to result, and tranquil to pulse wave according to recognition result during add up; Output unit, for exporting statistical information.
AD conversion unit also for identifying ripple components and constant component from measured signal, and digital signal processing unit is also for identifying pulse wave based on ripple components.
In one embodiment, digital signal processing unit is also for adding up the duration of pulse wave tranquil time.
In another embodiment, digital signal processing unit also always accounts for time ratio for what add up the pulse wave tranquil time, than the ratio operating duration for the accumulation duration of pulse wave tranquil period and cardio-pulmonary resuscitation during always the accounting for of pulse wave tranquil time.
In another embodiment, digital signal processing unit also for pre-setting first threshold and Second Threshold, and when the duration of pulse wave tranquil period is greater than first threshold, output alarm information; And/or the pulse wave tranquil time always account for that time, ratio was greater than Second Threshold time, output alarm information.
In one embodiment, digital signal processing unit especially by following formula carry out calculating pressing the intermittent time always account for time ratio:
Wherein,
for the sampled point cumulative statistics of artificial/mechanical compression process;
for occurring in artificial/mechanical compression process that the sampling number of artificial/machinery intermission is according to cumulative statistics; Wherein p=1,2,3 ... P, p refer to the p time artificial/machinery intermission; P refer to N point length artificial/mechanical compression process in occur artificial/machinery the intermission total degree; Q=1,2,3 ... Q, q are the q point in the p time CPR intermission, Q refer to the p time artificial/machinery intermission continue always count.
Digital signal processing unit also can be used for getting multiple single pulse wave, by the change of multiple single pulse wave, during identifying that described pulse wave is tranquil.In a kind of detailed description of the invention, digital signal processing unit also at least getting the continuous single pulse wave in 3 cycles, by the change of single pulse wave area value or the change of single pulse waveform, identify pulse wave tranquil during.
Digital signal processing unit also can be used for pre-setting threshold value; When the pressing intermittent time is greater than threshold value, output alarm information.Threshold value can be arranged as required, and in the present embodiment, threshold value can be set to 10S.
Embodiment three:
The armarium of the application, its a kind of embodiment, comprising:
Light emission receptor, it comprises luminous tube and receiving tube, and described luminous tube launches at least one road optical signal be used for through tissue, and described receiving tube receives at least one road optical signal through tissue, and transfers at least one road signal of telecommunication to; Digital processing unit, for the described signal of telecommunication is converted to digital signal, and processes described digital signal, carries out pulse wave identification according to result, and tranquil to pulse wave during add up; Output module, for exporting statistical information.
In one embodiment, the real-time pulse characteristics that digital processing unit is reflected by discriminating digit signal identifies pulse wave.
Digital processing unit can also obtain the real-time pulse characteristics of digital signal reflection by the ripple components of discriminating digit signal and constant component.
In one embodiment, statistical information comprises the duration of pulse wave tranquil period, and output module can comprise display interface, and display interface is used for the duration of display pulse ripple tranquil period.In another embodiment, what statistical information also comprised the pulse wave tranquil time always accounts for time ratio, than the ratio operating duration for the accumulation duration of pulse wave tranquil period and cardio-pulmonary resuscitation during always the accounting for of pulse wave tranquil time, display interface also always accounts for time ratio for what show the described pulse wave tranquil time.Digital processing unit also for pre-setting first threshold and Second Threshold, and when the duration of pulse wave tranquil period is greater than first threshold, output alarm information; And/or the pulse wave tranquil time always account for that time, ratio was greater than described Second Threshold time, output alarm information.
Above content is the further description done the application in conjunction with concrete embodiment, can not assert that the concrete enforcement of the application is confined to these explanations.For the application person of an ordinary skill in the technical field, under the prerequisite not departing from the application's design, some simple deduction or replace can also be made.
Claims (23)
1. a pulse wave processing method, is characterized in that, comprising:
Measured signal is processed, the real-time pulse characteristics of described measured signal reflection measured;
Pulse wave identification is carried out according to result;
Add up during tranquil to pulse wave according to recognition result;
Export statistical information.
2. the method for claim 1, is characterized in that, describedly processes measured signal, comprising:
Ripple components and constant component is identified from measured signal;
Describedly carry out pulse wave identification according to result, comprising:
Based on ripple components identification pulse wave.
3. method as claimed in claim 2, is characterized in that, described based on ripple components identification pulse wave, comprises by pulse wave described in the amplitude of pulse and width identification.
4. method as claimed in claim 2, is characterized in that, describedly adds up pulse wave tranquil period according to recognition result, comprising:
The duration of statistics pulse wave tranquil time.
5. method as claimed in claim 4, is characterized in that, describedly adds up pulse wave tranquil period according to recognition result, also comprises:
The statistics pulse wave tranquil time always account for time ratio, than the ratio operating duration for the accumulation duration of pulse wave tranquil period and cardio-pulmonary resuscitation during always the accounting for of described pulse wave tranquil time.
6. method as claimed in claim 5, is characterized in that, describedly adds up pulse wave tranquil period according to recognition result, also comprises:
Pre-set first threshold and Second Threshold;
When the duration of described pulse wave tranquil period is greater than described first threshold, output alarm information;
And/or when the described pulse wave tranquil time always account for that time, ratio was greater than described Second Threshold time, output alarm information.
7. the method for claim 1, is characterized in that, described in carry out pulse wave identification, comprising:
Get multiple single pulse wave, by the change of described multiple single pulse wave, during identifying that described pulse wave is tranquil.
8. method as claimed in claim 7, is characterized in that, described in get multiple single pulse wave, by the change of described multiple single pulse wave, during identifying that described pulse wave is tranquil, specifically comprise:
At least get the continuous single pulse wave in 3 cycles, by the change of described single pulse wave area value or the change of described single pulse waveform, during identifying that described pulse wave is tranquil.
9. the method for claim 1, is characterized in that, is artificial/mechanical compression intermission during described pulse wave is tranquil.
10. the method for claim 1, is characterized in that, describedly processes measured signal, realizes especially by time-domain calculation method and/or frequency-domain calculations method.
11. 1 kinds of pulse wave blood processor, is characterized in that, comprising:
AD conversion unit, for processing measured signal, the real-time pulse characteristics of described measured signal reflection measured;
Digital signal processing unit, for carrying out pulse wave identification according to result, and tranquil to pulse wave according to recognition result during add up;
Output unit, for exporting statistical information.
12. devices as claimed in claim 11, is characterized in that, described AD conversion unit also for identifying ripple components and constant component from measured signal, and described digital signal processing unit is also for identifying pulse wave based on ripple components.
13. devices as claimed in claim 11, is characterized in that, described digital signal processing unit is also for adding up the duration of pulse wave tranquil time.
14. devices as claimed in claim 13, it is characterized in that, described digital signal processing unit also always accounts for time ratio for what add up the pulse wave tranquil time, than the ratio operating duration for the accumulation duration of pulse wave tranquil period and cardio-pulmonary resuscitation during always the accounting for of described pulse wave tranquil time.
15. devices as claimed in claim 14, is characterized in that, described digital signal processing unit also for pre-setting first threshold and Second Threshold, and when the duration of described pulse wave tranquil period is greater than described first threshold, output alarm information; And/or the described pulse wave tranquil time always account for that time, ratio was greater than described Second Threshold time, output alarm information.
16. devices as claimed in claim 15, is characterized in that, described digital signal processing unit also for getting multiple single pulse wave, by the change of described multiple single pulse wave, during identifying that described pulse wave is tranquil.
17. devices as claimed in claim 16, it is characterized in that, described digital signal processing unit also at least getting the continuous single pulse wave in 3 cycles, by the change of described single pulse wave area value or the change of described single pulse waveform, during identifying that described pulse wave is tranquil.
18. 1 kinds of armarium, is characterized in that, comprising:
Light emission receptor, it comprises luminous tube and receiving tube, and described luminous tube launches at least one road optical signal be used for through tissue, and described receiving tube receives at least one road optical signal through tissue, and transfers at least one road signal of telecommunication to;
Digital processing unit, for the described signal of telecommunication is converted to digital signal, and processes described digital signal, carries out pulse wave identification according to result, and tranquil to pulse wave during add up;
Output module, for exporting statistical information.
19. armarium as claimed in claim 18, is characterized in that, described digital processing unit is by identifying that the real-time pulse characteristics of described digital signal reflection identifies pulse wave.
20. armarium as claimed in claim 19, is characterized in that, described digital processing unit obtains the real-time pulse characteristics of described digital signal reflection by the ripple components and constant component identifying described digital signal.
21. armarium as claimed in claim 18, it is characterized in that, described statistical information comprises the duration of pulse wave tranquil period; Described output module comprises display interface, and described display interface is for showing the duration of described pulse wave tranquil period.
22. armarium as claimed in claim 21, it is characterized in that, what described statistical information also comprised the pulse wave tranquil time always accounts for time ratio, than the ratio operating duration for the accumulation duration of pulse wave tranquil period and cardio-pulmonary resuscitation during always the accounting for of described pulse wave tranquil time; Described display interface also always accounts for time ratio for what show the described pulse wave tranquil time.
23. armarium as claimed in claim 22, is characterized in that, described digital processing unit also for pre-setting first threshold and Second Threshold, and when the duration of described pulse wave tranquil period is greater than described first threshold, output alarm information; And/or the described pulse wave tranquil time always account for that time, ratio was greater than described Second Threshold time, output alarm information.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410208903.9A CN105078422B (en) | 2014-05-16 | 2014-05-16 | Method and apparatus for monitoring cardiopulmonary resuscitation compression interruption time |
| US14/497,209 US9949892B2 (en) | 2013-10-11 | 2014-09-25 | Pulse oximetry-based cardio-pulmonary resuscitation (CPR) quality feedback systems and methods |
| EP14186454.6A EP2859913B1 (en) | 2013-10-11 | 2014-09-25 | Pulse oximetry-based Cardio-Pulmonary Resuscitation (CPR) quality feedback systems and methods |
| US15/927,879 US10463566B2 (en) | 2013-10-11 | 2018-03-21 | Pulse oximetry-based cardio-pulmonary resuscitation (CPR) quality feedback systems and methods |
| US16/578,122 US11471375B2 (en) | 2013-10-11 | 2019-09-20 | Pulse oximetry-based cardio-pulmonary resuscitation (CPR) quality feedback systems and methods |
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| CN201410208903.9A CN105078422B (en) | 2014-05-16 | 2014-05-16 | Method and apparatus for monitoring cardiopulmonary resuscitation compression interruption time |
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| CN105078422A true CN105078422A (en) | 2015-11-25 |
| CN105078422B CN105078422B (en) | 2020-06-30 |
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| CN201410208903.9A Active CN105078422B (en) | 2013-10-11 | 2014-05-16 | Method and apparatus for monitoring cardiopulmonary resuscitation compression interruption time |
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| CN109688929A (en) * | 2016-09-14 | 2019-04-26 | 浜松光子学株式会社 | Concentration measurement apparatus and method for measurement of concentration |
| CN114983794A (en) * | 2022-08-03 | 2022-09-02 | 苏州尚领医疗科技有限公司 | Risk feedback method and device for chest compression, storage medium and electronic equipment |
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