CN102499873A - Automatic adjusting method of gas charging/ discharging time of external counter pulsation device - Google Patents
Automatic adjusting method of gas charging/ discharging time of external counter pulsation device Download PDFInfo
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- CN102499873A CN102499873A CN2011103255367A CN201110325536A CN102499873A CN 102499873 A CN102499873 A CN 102499873A CN 2011103255367 A CN2011103255367 A CN 2011103255367A CN 201110325536 A CN201110325536 A CN 201110325536A CN 102499873 A CN102499873 A CN 102499873A
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Abstract
The invention discloses an automatic adjusting method of gas charging /discharging time of an external counter pulsation device and belongs to the field of counter pulsation gas charging time adjusting. The automatic adjusting method of the gas charging /discharging time is characterized in that since the external counter pulsation device has best gas charging treatment effect when the aortic valve of a human body is closed and an incisure point exists on the falling edge of a non-innovative temporal artery pressure pulse wave and can be used as a mark of the boundary point of diastole and systole, the gas charging time of the external counter pulsation device can be adjusted by acquiring the temporal artery pulse wave signal, so that the rising initial point of diastole wave of the temporal artery pulse wave during counter pulsation is exactly at the original incisure point (namely the beginning of diastole) so as to automatically control the counter pulsation gas charging time.
Description
Technical field
The present invention relates to external counterpulsation apparatus, especially a kind of external counterpulsation apparatus fills the evacuation time Automatic adjustment method.
Background technology
Existing external counterpulsation apparatus fills the most manual adjustments that adopt of evacuation time, and promptly the doctor regulated before the treatment beginning and fills evacuation time according to patient's concrete condition, and this fills evacuation time no change in therapeutic process.Yet because the patient is in therapeutic process, electrocardio can change, if fill not dynamic change of evacuation time, can cause an inflation point inaccuracy, thereby influence therapeutic effect.
Summary of the invention
The purpose of this invention is to provide a kind of external counterpulsation apparatus and fill the evacuation time Automatic adjustment method, can when diastole begins, inflate, make that the anti-inflation point of fighting is accurately reliable, the treatment safe effect is good.
To achieve these goals, the invention provides a kind of external counterpulsation apparatus and fill the evacuation time Automatic adjustment method, it is characterized in that may further comprise the steps:
S1, gather the temporo pulse wave signal, said temporo pulse wave signal through filter amplifying processing, analog digital conversion after be transferred to processor by the optocoupler module;
S2, counter the fighting of beginning; Processor begins self study; The temporo pulse wave signal is in the rate of rise, descending slope, minimum sum, the maximum sum of t in the time before calculating counter fighting; And further calculate the key parameter of temporo pulse wave signal: rate of rise threshold value, descending slope threshold value, incisura point coordinate threshold value, valley point coordinate threshold value, incisura point limit coordinate threshold value, wherein:
Rate of rise threshold value=rate of rise sum * 1.0/ rate of rise number,
Descending slope threshold value=descending slope sum * 0.8/ descending slope number,
If minimum sum>0, incisura point coordinate threshold value=(minimum sum * 1.0/ minimum number) * 1.5 then,
If minimum sum≤0, incisura point coordinate threshold value=(minimum sum * 1.0/ minimum number) * 0.5 then,
Valley point coordinate threshold value=minimum sum * 1.0/ minimum number,
Incisura point limit coordinate threshold value=maximum sum * 4.0/ maximum number;
S3, the anti-valley point of back temporo pulse wave signal in a temporo pulse wave signal cycle of fighting of searching: if temporo pulse wave signal mid point P
iSlope>=0, first P of its front
I-1Slope<0 and the some P
I-1Wave number less than said valley point coordinate threshold value, then further judge said some P
iNext second some P
I+2Slope whether>=0.6* rate of rise threshold value, if second the some P in back
I+2Slope>=0.6* rate of rise threshold value, then represent said some P
I-1Be valley point;
S4, the anti-incisura point of back temporo pulse wave signal in a temporo pulse wave signal cycle of fighting of searching: if temporo pulse wave signal mid point P
iSlope>=0, first P of its front
I-1Slope<0 and first P of front
I-1Wave number greater than said incisura point coordinate threshold value, then further judge said some P
iFirst P of back
I+1Slope whether greater than said descending slope threshold value, if said some P
iFirst P of back
I+1Slope>=said descending slope threshold value, and its wave number is greater than said incisura point coordinate threshold value, a then said P
iFront second some P
I-2Be incisura point;
If the quantity of S5 incisura point >=2; Then with the time difference between two incisura points in front in all incisura points as inflation compensating parameter constantly; The anti-inflationtime of fighting is regulated, and is 1 until the quantity of incisura point, with the inflationtime of this moment as this anti-final anti-inflationtime of fighting of fighting.
Further comprising the steps of before step S2 begins counter fighting:
S6, treat self study behind the waveform stabilization of said temporo pulse wave signal; Adopt the identical method of step S2 to calculate the anti-back temporo pulse wave signal of fighting, and further calculate the key parameter of temporo pulse wave signal in the rate of rise, descending slope, minimum sum, the maximum sum of t in the time;
S7, the method that employing step S3 is identical are sought the valley point of the anti-preceding temporo pulse wave signal of fighting:;
S8, before searching out counter fighting under the prerequisite of the valley point of temporo pulse wave signal, adopt the identical method of step S4 to seek the incisura point of temporo pulse wave signal before counter the fighting;
S9, before searching out counter fighting under the prerequisite of the incisura point of temporo pulse wave signal; Calculate the anti-time difference T1 that fights between preceding incisura point and the valley point; As judging the counter whether unusual basis of back incisura point of fighting; If the counter time between back incisura point and the valley point of fighting greater than counter fighting before time difference T1 between incisura point and the valley point, represent that then said incisura point is unusual incisura point, in step S5, delete this incisura point.
In sum, owing to adopted technique scheme, the invention has the beneficial effects as follows:
External counterpulsation apparatus is inflated according to incisura point, and the inflation point is accurately reliable, and the treatment safe effect is good;
In addition, before counter fighting, confirm the time difference of normal incisura point and valley point, prevented in the inflationtime adjustment process, to sneak into unusual incisura point, further guaranteed the accuracy that the inflation point is regulated.
Description of drawings
The present invention will explain through example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is the Acquisition Circuit figure of temporo pulse wave signal;
Fig. 2 is a flow chart of the present invention.
The specific embodiment
Disclosed all characteristics in this description, or the step in disclosed all methods or the process except mutually exclusive characteristic and/or the step, all can make up by any way.
Disclosed arbitrary characteristic in this description (comprising any accessory claim, summary and accompanying drawing) is only if special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, only if special narration, each characteristic is an example in a series of equivalences or the similar characteristics.
Find according to domestic and international research; External counterpulsation apparatus is inflated therapeutic effect when the human aortic lobe is closed best; And there is an incisura point at the trailing edge that does not have innovation temporo arterial pressure pulse wave according to physiological knowledge; Can be used as the labelling of diastole and paradoxical expansion separation, therefore the present invention proposes, regulate the inflationtime of external counterpulsation apparatus through gathering the temporo pulse wave signal; The diastolic wave rising starting point of temporo pulse wave just in time drops on former incisura point place (when diastole begins) when making counter fighting, thereby realizes the automatic control of the anti-inflationtime of fighting.
Of Fig. 1, this external counterpulsation apparatus fills the evacuation time Automatic adjustment method and is made up of following steps:
Step 1, gather the temporo pulse wave signal, this temporo pulse wave signal is transferred to D/A converter module after through filter amplifying processing, and this analog-to-digital conversion module converts the temporo pulse wave signal to digital signal, and is transferred to processor through the optocoupler module.
Step 2, wait 20 s; Treat self study behind the waveform stabilization of temporo pulse wave signal; The temporo pulse wave signal is in the rate of rise, descending slope, minimum sum, the maximum sum of t in the time before calculating counter fighting; And further calculate the key parameter of temporo pulse wave signal: rate of rise threshold value, descending slope threshold value, incisura point coordinate threshold value, valley point coordinate threshold value, incisura point limit coordinate threshold value, wherein
Rate of rise threshold value=rate of rise sum * 1.0/ rate of rise number,
Descending slope threshold value=descending slope sum * 0.8/ descending slope number,
If minimum sum>0, incisura point coordinate threshold value=(minimum sum * 1.0/ minimum number) * 1.5 then,
If minimum sum≤0, incisura point coordinate threshold value=(minimum sum * 1.0/ minimum number) * 0.5 then,
Valley point coordinate threshold value=minimum sum * 1.0/ minimum number,
Incisura point limit coordinate threshold value=maximum sum * 4.0/ maximum number.Because pulse wave signal is confirmed the rate of rise, descending slope, minimum and the maximum of certain hour, all belongs to sophisticated prior art, will not tire out at this and state.Getting time t in the present embodiment is 10 s (seconds), and the waiting time of the waveform stabilization of processor wait temporo pulse wave signal is except can also be set to other time in 20 seconds according to specific circumstances.In addition, the self-learning method of mentioning in this step is the prior art of comparative maturity, will not tire out at this and state.
The valley point of step 3, the anti-preceding temporo pulse wave signal of fighting of searching: if temporo pulse wave signal mid point P
iSlope>=0, first P of its front
I-1Slope<0 and the some P
I-1Wave number less than this valley point coordinate threshold value, then further judge this P
iNext second some P
I+2Slope whether>=0.6* rate of rise threshold value, if second the some P in back
I+2Slope>=0.6* rate of rise threshold value, then represent this P
I-1Be valley point.
Step 4, before searching out counter fighting under the prerequisite of the valley point of temporo pulse wave signal; Seek the incisura point of the anti-preceding temporo pulse wave signal of fighting; If promptly in step S3, do not search out valley point then the execution in step S3 that circulates, if search out valley point then the incisura point of temporo pulse wave signal before seeking counter fighting.
Seek and judge that whether a point is that the process of incisura point is before counter the fighting in the incisura point of temporo pulse wave signal: if temporo pulse wave signal mid point P
iSlope>=0, first P of its front
I-1Slope<0 and first P of front
I-1Wave number greater than incisura point coordinate threshold value, further judging point P then
iFirst P of back
I+1Slope whether greater than the descending slope threshold value, if this P
iFirst P of back
I+1Slope>=descending slope threshold value, and its wave number is greater than incisura point coordinate threshold value, a then said P
iFront second some P
I-2Be incisura point.
Because the temporo pulse wave signal does not receive the influence of patient's electrocardio fluctuation before counter fighting, so in the anti-previous temporo pulse wave signal cycle of fighting, only have an incisura point.
Step 5, before searching out counter fighting under the prerequisite of temporo pulse wave signal incisura point, calculate the time difference T1 between the incisura point and valley point before counter the fighting, as judging the counter whether unusual basis of back incisura point of fighting.
After step 6, counter the fighting of beginning; The processor self study; Adopt with step S2 in identical method calculate the anti-temporo pulse wave signal of fighting afterwards in the rate of rise, descending slope, minimum sum, the maximum sum of t in the time; And further calculate the key parameter of temporo pulse wave signal, likewise, the computing formula of key parameter is:
Rate of rise threshold value=rate of rise sum * 1.0/ rate of rise number,
Descending slope threshold value=descending slope sum * 0.8/ descending slope number,
If minimum sum>0, incisura point coordinate threshold value=(minimum sum * 1.0/ minimum number) * 1.5 then,
If minimum sum≤0, incisura point coordinate threshold value=(minimum sum * 1.0/ minimum number) * 0.5 then,
Valley point coordinate threshold value=minimum sum * 1.0/ minimum number,
Incisura point limit coordinate threshold value=maximum sum * 4.0/ maximum number.
Step 7, the method that the employing step 3 is identical are sought the anti-valley point of back temporo pulse wave signal in a temporo pulse wave signal cycle of fighting: if temporo pulse wave signal mid point P
iSlope>=0, first P of its front
I-1Slope<0 and the some P
I-1Wave number less than said valley point coordinate threshold value, then further judge said some P
iNext second some P
I+2Slope whether>=0.6* rate of rise threshold value, if second the some P in back
I+2Slope>=0.6* rate of rise threshold value, then represent said some P
I-1Be valley point.
Step 8, the method that the employing step 4 is identical are sought the anti-incisura point of back temporo pulse wave signal in a temporo pulse wave signal cycle of fighting: if temporo pulse wave signal mid point P
iSlope>=0, first P of its front
I-1Slope<0 and first P of front
I-1Wave number greater than said incisura point coordinate threshold value, then further judge said some P
iFirst P of back
I+1Slope whether greater than said descending slope threshold value, if said some P
iFirst P of back
I+1Slope>=said descending slope threshold value, and its wave number is greater than said incisura point coordinate threshold value, a then said P
iFront second some P
I-2Be incisura point.
Step 9, because after counter the fighting of beginning, the temporo pulse wave signal receives the influence of electrocardio fluctuation, in a temporo pulse wave signal cycle, a plurality of incisura points may occur.If the quantity of incisura point >=2; Then with the time difference between two incisura points in front in all incisura points as inflation compensating parameter constantly; The anti-inflationtime of fighting is regulated; Quantity until incisura point is 1, and the inflation moment compensating parameter of then inciting somebody to action this moment is as this anti-final anti-inflationtime of fighting of fighting.
In addition; According to the time difference T1 between incisura point and the valley point before counter the fighting of step 2～step 5 acquisition; As the counter whether unusual basis of incisura point, back of fighting; If the time difference before anti-time difference＞counter the fighting of fighting between the valley point of back in counter fight back incisura point and the step 7 that in step 8, obtain between incisura point and the valley point representes that then this incisura point belongs to unusual incisura point, in the inflationtime adjustment process of step 9, this incisura point is deleted.
The present invention is not limited to the aforesaid specific embodiment.The present invention expands to any new feature or any new combination that discloses in this manual, and the arbitrary new method that discloses or step or any new combination of process.
Claims (2)
1. an external counterpulsation apparatus fills the evacuation time Automatic adjustment method, it is characterized in that may further comprise the steps:
S1, gather the temporo pulse wave signal, said temporo pulse wave signal through filter amplifying processing, analog digital conversion after be transferred to processor by the optocoupler module;
S2, counter the fighting of beginning; Processor begins self study; The temporo pulse wave signal is in the rate of rise, descending slope, minimum sum, the maximum sum of t in the time before calculating counter fighting; And further calculate the key parameter of temporo pulse wave signal: rate of rise threshold value, descending slope threshold value, incisura point coordinate threshold value, valley point coordinate threshold value, incisura point limit coordinate threshold value, wherein:
Rate of rise threshold value=rate of rise sum * 1.0/ rate of rise number,
Descending slope threshold value=descending slope sum * 0.8/ descending slope number,
If minimum sum>0, incisura point coordinate threshold value=(minimum sum * 1.0/ minimum number) * 1.5 then,
If minimum sum≤0, incisura point coordinate threshold value=(minimum sum * 1.0/ minimum number) * 0.5 then,
Valley point coordinate threshold value=minimum sum * 1.0/ minimum number,
Incisura point limit coordinate threshold value=maximum sum * 4.0/ maximum number;
S3, the anti-valley point of back temporo pulse wave signal in a temporo pulse wave signal cycle of fighting of searching: if temporo pulse wave signal mid point P
iSlope>=0, first P of its front
I-1Slope<0 and the some P
I-1Wave number less than said valley point coordinate threshold value, then further judge said some P
iNext second some P
I+2Slope whether>=0.6* rate of rise threshold value, if second the some P in back
I+2Slope>=0.6* rate of rise threshold value, then represent said some P
I-1Be valley point;
S4, the anti-incisura point of back temporo pulse wave signal in a temporo pulse wave signal cycle of fighting of searching: if temporo pulse wave signal mid point P
iSlope>=0, first P of its front
I-1Slope<0 and first P of front
I-1Wave number greater than said incisura point coordinate threshold value, then further judge said some P
iFirst P of back
I+1Slope whether greater than said descending slope threshold value, if said some P
iFirst P of back
I+1Slope>=said descending slope threshold value, and its wave number is greater than said incisura point coordinate threshold value, a then said P
iFront second some P
I-2Be incisura point;
If the quantity of S5 incisura point >=2; Then with the time difference between two incisura points in front in all incisura points as inflation compensating parameter constantly; The anti-inflationtime of fighting is regulated, and is 1 until the quantity of incisura point, with the inflationtime of this moment as this anti-final anti-inflationtime of fighting of fighting.
2. external counterpulsation apparatus according to claim 1 fills the evacuation time Automatic adjustment method, it is characterized in that: further comprising the steps of before step S2 begins counter fighting:
S6, treat self study behind the waveform stabilization of said temporo pulse wave signal; Adopt the identical method of step S2 to calculate the anti-back temporo pulse wave signal of fighting, and further calculate the key parameter of temporo pulse wave signal in the rate of rise, descending slope, minimum sum, the maximum sum of t in the time;
S7, the method that employing step S3 is identical are sought the valley point of the anti-preceding temporo pulse wave signal of fighting:;
S8, before searching out counter fighting under the prerequisite of the valley point of temporo pulse wave signal, adopt the identical method of step S4 to seek the incisura point of temporo pulse wave signal before counter the fighting;
S9, before searching out counter fighting under the prerequisite of the incisura point of temporo pulse wave signal; Calculate the anti-time difference T1 that fights between preceding incisura point and the valley point; As judging the counter whether unusual basis of back incisura point of fighting; If the counter time between back incisura point and the valley point of fighting greater than counter fighting before time difference T1 between incisura point and the valley point, represent that then said incisura point is unusual incisura point, in step S5, delete this incisura point.
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| CN 201110325536 CN102499873B (en) | 2011-10-24 | 2011-10-24 | Automatic adjusting method of gas charging/ discharging time of external counter pulsation device |
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| CN 201110325536 CN102499873B (en) | 2011-10-24 | 2011-10-24 | Automatic adjusting method of gas charging/ discharging time of external counter pulsation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113288751A (en) * | 2021-05-24 | 2021-08-24 | 中山大学附属第一医院 | Portable device for improving vascular endothelial function |
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| CN1647789A (en) * | 2005-02-06 | 2005-08-03 | 佛山市利强机电设备有限公司 | Method for optimum pressure application and release time for automatic tracking and regulating external counter pulsation device |
| US20060004245A1 (en) * | 2004-06-30 | 2006-01-05 | Pickett David A | High-efficiency external counterpulsation apparatus and method for performing the same |
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2011
- 2011-10-24 CN CN 201110325536 patent/CN102499873B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060004245A1 (en) * | 2004-06-30 | 2006-01-05 | Pickett David A | High-efficiency external counterpulsation apparatus and method for performing the same |
| CN1647789A (en) * | 2005-02-06 | 2005-08-03 | 佛山市利强机电设备有限公司 | Method for optimum pressure application and release time for automatic tracking and regulating external counter pulsation device |
Non-Patent Citations (1)
| Title |
|---|
| 刘金琪等: "基于模式识别的体外反搏系统的设计与实现", 《机械与电子》, no. 5, 24 May 2007 (2007-05-24) * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113288751A (en) * | 2021-05-24 | 2021-08-24 | 中山大学附属第一医院 | Portable device for improving vascular endothelial function |
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| CN102499873B (en) | 2013-09-18 |
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Inventor after: Wei Fang Inventor after: Xu Zhaohua Inventor after: Zeng Yousong Inventor after: Liu Qi Inventor after: Huang Hao Inventor before: Wang Zhihui Inventor before: Xiao Qianjun Inventor before: Zeng Yousong Inventor before: Huang Hao |
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Address after: 400026 No. 4, No. 4-2, No. 5, Chengdong loop, Jiangbei District, Chongqing, 4-1 Patentee after: Chongqing Kang aftercrop technology development Limited by Share Ltd Address before: Three road 400013 Jiulongpo District of Chongqing Science Park Shiqiaopu No. 67 H block 2 building standard factory Patentee before: Chongqing PSK-Health Sci-Tech Development Co., Ltd. |
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