CN109009044B - Novel pulse wave acquisition device - Google Patents
Novel pulse wave acquisition device Download PDFInfo
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- CN109009044B CN109009044B CN201810928008.2A CN201810928008A CN109009044B CN 109009044 B CN109009044 B CN 109009044B CN 201810928008 A CN201810928008 A CN 201810928008A CN 109009044 B CN109009044 B CN 109009044B
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- 230000035485 pulse pressure Effects 0.000 claims abstract description 33
- 210000000707 wrist Anatomy 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000005259 measurement Methods 0.000 claims abstract description 7
- 210000002321 radial artery Anatomy 0.000 claims abstract description 7
- 210000001367 artery Anatomy 0.000 claims abstract description 6
- 238000004458 analytical method Methods 0.000 claims description 8
- 238000012360 testing method Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000003814 drug Substances 0.000 description 2
- 230000001575 pathological effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 210000000748 cardiovascular system Anatomy 0.000 description 1
- 238000003759 clinical diagnosis Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/022—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
- A61B5/0225—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers the pressure being controlled by electric signals, e.g. derived from Korotkoff sounds
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/02108—Measuring pressure in heart or blood vessels from analysis of pulse wave characteristics
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/02141—Details of apparatus construction, e.g. pump units or housings therefor, cuff pressurising systems, arrangements of fluid conduits or circuits
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Cardiology (AREA)
- Vascular Medicine (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Physiology (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Veterinary Medicine (AREA)
- Physics & Mathematics (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Ophthalmology & Optometry (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Abstract
The invention discloses a novel pulse wave acquisition device, and relates to the field of medical equipment. In the invention, the following components are added: the inner surface of the wrist strap of the watch is fixed with a pulse pressure sensor; the pulse pressure sensor collects arterial pulse signals of a human body and transmits the signals to the signal collection control unit through a signal line; a four-cavity air bag is arranged between the pulse pressure sensor and the wrist strap of the watch; the sub-airbags are all connected to the signal acquisition control unit through an inflation hose; the signal acquisition control unit adjusts the pressing force and the angle of the pulse pressure sensor to the artery part by controlling the inflation and deflation of the four sub-airbags so as to acquire the optimal pulse signal. According to the invention, four square air bags are arranged on the upper side part of the pulse pressure sensor, and in the pulse waveform measurement process, the four air bags are controlled by the signal acquisition control unit to be inflated and deflated so as to adjust the pressing force and angle of the pulse pressure sensor on the radial artery; to obtain the pulse signal with optimal signal.
Description
Technical Field
The invention belongs to the technical field of medical equipment, and particularly relates to a novel pulse wave acquisition device.
Background
The physiological and pathological information of human body is extracted from pulse wave as the basis of clinical diagnosis and treatment, and is paid attention to by the traditional Chinese medicine and external medicine. The comprehensive information of the pulse wave in aspects of morphology (waveform), intensity (amplitude), velocity (wave speed), rhythm (period) and the like reflects the blood flow characteristics of a plurality of physiological and pathological states in the cardiovascular system of the human body to a great extent, so that the method has high medical value and application prospect for pulse wave acquisition and processing.
In the process of pulse wave signal detection and acquisition, the acquired signals are often accompanied by noise and interference due to the influence of instruments and human bodies, and the test results are easily influenced due to the fact that the pulse waves of the human bodies are relatively weak. The pulse wave detection device disclosed in the invention such as CN101176663B cannot determine whether or not the output pulse wave signal is the optimal signal, and therefore it is necessary to design a new pulse wave detection device.
Disclosure of Invention
The invention aims to provide a novel pulse wave acquisition device, which is characterized in that four square air bags are arranged on the upper side part of a pulse pressure sensor, and in the pulse waveform measurement process, the pressing force and angle of the pulse pressure sensor to radial artery are adjusted by controlling the inflation and deflation of the four air bags through a signal acquisition control unit; to obtain the pulse signal with optimal signal.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a novel pulse wave acquisition device, which comprises a wrist strap and a signal acquisition control unit, wherein a pulse pressure sensor is fixed on the inner surface of the wrist strap; the pulse pressure sensor collects arterial pulse signals of a human body and transmits the signals to the signal collection control unit through a signal wire; a four-cavity air bag is arranged between the pulse pressure sensor and the wrist strap of the watch; the four-cavity air bag consists of four sub-air bags Q1, Q2, Q3 and Q4; the sub-airbags are connected to the signal acquisition control unit through an inflatable hose; the signal acquisition control unit controls the inflation and deflation of the four-cavity air bag; the signal acquisition control unit adjusts the pressing force and the angle of the pulse pressure sensor to the artery part by controlling the inflation and deflation of the four sub-airbags so as to acquire the optimal pulse signal.
Further, the signal acquisition control unit controls the inflation and deflation of the four-cavity air bag through the inflator, so that the pressing force of the pulse pressure sensor on the artery part can be conveniently adjusted.
Further, the signal acquisition control unit acquires pulse wave signals acquired by the pulse pressure sensor when different pressing forces and angles are detected in the test process, and performs comparison analysis on the pulse wave signals to acquire the pulse wave signals with the optimal signals.
Further, the signal acquisition control unit adopts a singlechip; the signal acquisition control unit displays pulse signals through a display unit; the pulse signal can be conveniently observed by medical staff.
An optimal pulse signal acquisition method of a novel pulse wave acquisition device comprises the following steps;
step one: binding the wrist watchband on the wrist, and aligning the pulse pressure sensor with the radial artery;
step two: firstly, synchronously inflating a four-cavity air bag by a signal acquisition control unit;
stopping the inflation when the inflation pressure reaches 20mmHg, and collecting pulse wave signals of one period; stopping the inflation when the inflation pressure reaches 30mmHg, and collecting pulse wave signals of one period; stopping the inflation when the inflation pressure reaches 40mmHg, and collecting pulse wave signals of one period;
the signal acquisition control unit analyzes pulse wave signals at three pressure positions of 20mmHg, 30mmHg and 40 mmHg: respectively extracting two characteristic points a (first wave crest) and b (first wave trough) of pulse wave signals at corresponding pressures, calculating a difference value P=a-b, calculating P values at three pressures of 20mmHg, 30mmHg and 40mmHg, and synchronously inflating and deflating four square four-cavity air bags to a pressure position M corresponding to the maximum P value;
step three: independently inflating and deflating a sub-airbag Q1 in the four-cavity airbag;
stopping deflation when the pressure is M-5mmHg, and collecting pulse wave signals of one period; stopping the inflation until the pressure is M+5mmHg, and collecting pulse wave signals of one period;
the signal acquisition control unit analyzes pulse wave signals at three pressure positions of M-5mmHg, M and M+5 mmHg: respectively extracting two characteristic points a (first wave crest) and b (first wave trough) of pulse wave signals at corresponding pressures, calculating an amplitude difference P of the two points a and b, calculating P values at three pressures of M-5mmHg, M and M+5mmHg, and inflating and deflating the sub-air bag Q1 to the pressure corresponding to the maximum P value;
step four: independently inflating and deflating a sub-airbag Q2 in the four-cavity airbag;
stopping deflation when the pressure is M-5mmHg, and collecting pulse wave signals of one period; stopping the inflation until the pressure is M+5mmHg, and collecting pulse wave signals of one period;
the signal acquisition control unit analyzes pulse wave signals at three pressure positions of M-5mmHg, M and M+5 mmHg: respectively extracting two characteristic points a (first wave crest) and b (first wave trough) of pulse wave signals at corresponding pressures, calculating a difference value P=a-b, calculating P values at three pressures of M-5mmHg, M and M+5mmHg, and inflating and deflating the sub-air bag Q2 to the pressure corresponding to the maximum P value;
step five: the pressure of each air bag in the four-cavity air bag is kept unchanged, and the pulse pressure sensor acquires the optimal pulse wave signal and transmits the optimal pulse wave signal to the signal acquisition control unit for analysis, so that pulse wave measurement is completed.
The invention has the following beneficial effects:
1. according to the invention, four square air bags are arranged on the upper side part of the pulse pressure sensor, and in the pulse waveform measurement process, the four air bags are controlled by the signal acquisition control unit to be inflated and deflated so as to adjust the pressing force and angle of the pulse pressure sensor on the radial artery; to obtain the pulse signal with optimal signal.
2. According to the invention, the strongest pulse wave signals are finally obtained through analysis and comparison by collecting the pulse wave signals measured at each stage, so that the radial artery pulse wave of the human body can be more accurately analyzed.
Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a state diagram of a novel pulse wave acquisition device being worn on a measurement site;
FIG. 2 is a schematic diagram of a novel pulse wave acquisition device;
FIG. 3 is a schematic diagram showing a pulse wave waveform analysis method under different inflation pressures of the air bags according to the present invention;
in the drawings, the list of components represented by the various numbers is as follows:
1-wrist watchband; 2-four-chamber balloon; 3-pulse pressure sensor; 4-an inflatable hose; 5-signal lines; and 6-a signal acquisition control unit.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "open," "up," "down," "top," "middle," "inner," "peripheral," and the like indicate orientations or positional relationships, merely to facilitate the description of the present invention and simplify the description, and do not indicate or imply that the components or elements being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Referring to fig. 1-2, the present invention is a novel pulse wave acquisition device, which includes a wrist watchband 1 and a signal acquisition control unit 6, wherein the wrist watchband 1 is made of rubber material; the inner surface of the wrist strap 1 is fixed with a pulse pressure sensor 3; the pulse pressure sensor 3 collects arterial pulse signals of a human body and transmits the signals to the signal collection control unit 6 through the signal line 5; a four-cavity air bag 2 is arranged between the pulse pressure sensor 3 and the wrist strap 1; the four-cavity air bag 2 consists of four sub-air bags Q1, Q2, Q3 and Q4; the sub-airbags are all connected to the signal acquisition control unit 6 through an inflation hose 4; the signal acquisition control unit 6 controls the inflation and deflation of the four-cavity air bag 2; the signal acquisition control unit 6 adjusts the pressing force and the angle of the pulse pressure sensor 3 to the artery part by controlling the inflation and deflation of the four sub-airbags to acquire the optimal pulse signal.
The signal acquisition control unit 6 controls the inflation and deflation of the four-cavity air bag 2 through the inflator, so that the pressing force of the pulse pressure sensor 3 on the artery part can be conveniently adjusted.
The signal acquisition control unit 6 acquires pulse wave signals acquired by the pulse pressure sensor 3 at different pressing forces and angles in the testing process, and performs comparison analysis on the pulse wave signals to acquire the pulse wave signals with the optimal signals.
Wherein, the signal acquisition control unit 6 adopts a singlechip; the signal acquisition control unit 6 displays pulse signals through a display unit; the pulse signal can be conveniently observed by medical staff.
As shown in fig. 3, an optimal pulse signal acquisition method of the novel pulse wave acquisition device comprises the following steps;
step one: binding the wrist watchband 1 on the wrist and aligning the pulse pressure sensor 3 with the radial artery;
step two: firstly, the signal acquisition control unit 6 synchronously inflates the four-cavity air bag 2;
stopping the inflation when the inflation pressure reaches 20mmHg, and collecting pulse wave signals of one period; stopping the inflation when the inflation pressure reaches 30mmHg, and collecting pulse wave signals of one period; stopping the inflation when the inflation pressure reaches 40mmHg, and collecting pulse wave signals of one period;
the signal acquisition control unit 6 analyzes pulse wave signals at three pressure positions of 20mmHg, 30mmHg and 40 mmHg: respectively extracting two characteristic points a (first wave crest) and b (first wave trough) of pulse wave signals at corresponding pressures, calculating a difference value P=a-b, calculating P values at three pressures of 20mmHg, 30mmHg and 40mmHg, and synchronously inflating and deflating four square four-cavity air bags 2 to a pressure position M corresponding to the maximum P value;
step three: the sub-air bag Q1 in the four-cavity air bag 2 is independently inflated and deflated;
stopping deflation when the pressure is M-5mmHg, and collecting pulse wave signals of one period; stopping the inflation until the pressure is M+5mmHg, and collecting pulse wave signals of one period;
the signal acquisition control unit 6 analyzes pulse wave signals at three pressure positions of M-5mmHg, M and M+5 mmHg: respectively extracting two characteristic points a (first wave crest) and b (first wave trough) of pulse wave signals at corresponding pressures, calculating an amplitude difference P of the two points a and b, calculating P values at three pressures of M-5mmHg, M and M+5mmHg, and inflating and deflating the sub-air bag Q1 to the pressure corresponding to the maximum P value;
step four: the sub-air bag Q2 in the four-cavity air bag 2 is independently inflated and deflated;
stopping deflation when the pressure is M-5mmHg, and collecting pulse wave signals of one period; stopping the inflation until the pressure is M+5mmHg, and collecting pulse wave signals of one period;
the signal acquisition control unit 6 analyzes pulse wave signals at three pressure positions of M-5mmHg, M and M+5 mmHg: respectively extracting two characteristic points a (first wave crest) and b (first wave trough) of pulse wave signals at corresponding pressures, calculating a difference value P=a-b, calculating P values at three pressures of M-5mmHg, M and M+5mmHg, and inflating and deflating the sub-air bag Q2 to the pressure corresponding to the maximum P value;
step five: the pressure of each air bag in the four-cavity air bag 2 is kept unchanged, and the pulse pressure sensor 3 acquires the optimal pulse wave signal and transmits the optimal pulse wave signal to the signal acquisition control unit 6 for analysis, so that pulse wave measurement is completed.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (2)
1. A pulse wave acquisition device characterized by: the wrist watch comprises a wrist watch band (1) and a signal acquisition control unit (6), wherein a pulse pressure sensor (3) is fixed on the inner surface of the wrist watch band (1); the pulse pressure sensor (3) collects arterial pulse signals of a human body and transmits the signals to the signal collection control unit (6) through the signal line (5);
a four-cavity air bag (2) is arranged between the pulse pressure sensor (3) and the wrist strap (1) of the watch; the four-cavity air bag (2) consists of four sub-air bags (Q1, Q2, Q3 and Q4); the sub-airbags are all connected to the signal acquisition control unit (6) through an inflation hose (4); the signal acquisition control unit (6) controls the inflation and deflation of the four-cavity air bag (2);
the signal acquisition control unit (6) adjusts the pressing force and the angle of the pulse pressure sensor (3) to the artery part by controlling the inflation and deflation of the four sub-airbags to acquire an optimal pulse signal;
the signal acquisition control unit (6) controls the inflation and deflation of the four-cavity air bag (2) through an inflator;
the signal acquisition control unit (6) acquires pulse wave signals acquired by the pulse pressure sensor (3) at different pressing forces and angles in the test process, and performs comparison analysis on the pulse wave signals to acquire pulse wave signals with optimal signals;
the optimal pulse signal acquisition method of the pulse wave acquisition device comprises the following steps;
step one: binding the wrist strap (1) on the wrist, and aligning the pulse pressure sensor (3) to the radial artery;
step two: firstly, a signal acquisition control unit (6) synchronously inflates the four-cavity air bag (2);
stopping the inflation when the inflation pressure reaches 20mmHg, and collecting pulse wave signals of one period; stopping the inflation when the inflation pressure reaches 30mmHg, and collecting pulse wave signals of one period; stopping the inflation when the inflation pressure reaches 40mmHg, and collecting pulse wave signals of one period;
the signal acquisition control unit (6) analyzes pulse wave signals at three pressure positions of 20mmHg, 30mmHg and 40 mmHg: respectively extracting two characteristic points of pulse wave signals at corresponding pressure: calculating the difference value P=a-b of the first wave crest a and the first wave trough b, calculating the P values at three pressure positions of 20mmHg, 30mmHg and 40mmHg, and synchronously inflating and deflating the four-cavity air bags (2) to the pressure position M corresponding to the maximum P value;
step three: the sub-air bag Q1 in the four-cavity air bag (2) is independently inflated and deflated;
stopping deflation when the pressure is M-5mmHg, and collecting pulse wave signals of one period; stopping the inflation until the pressure is M+5mmHg, and collecting pulse wave signals of one period;
the signal acquisition control unit (6) analyzes pulse wave signals at three pressure positions of M-5mmHg, M and M+5 mmHg: respectively extracting a first wave crest a and a first wave trough b of two characteristic points of a pulse wave signal at corresponding pressure, calculating an amplitude difference P of the two points a and b, calculating P values at three pressures of M-5mmHg, M and M+5mmHg, and inflating and deflating the sub-air bag Q1 to the pressure corresponding to the maximum P value;
step four: the sub-air bag Q2 in the four-cavity air bag (2) is independently inflated and deflated;
stopping deflation when the pressure is M-5mmHg, and collecting pulse wave signals of one period; stopping the inflation until the pressure is M+5mmHg, and collecting pulse wave signals of one period;
the signal acquisition control unit (6) analyzes pulse wave signals at three pressure positions of M-5mmHg, M and M+5 mmHg: respectively extracting a first wave crest a and a first wave trough b of two characteristic points of a pulse wave signal at corresponding pressure, calculating a difference value P=a-b, calculating P values at three pressure positions of M-5mmHg, M and M+5mmHg, and inflating and deflating the sub-air bag Q2 to the pressure position corresponding to the maximum P value;
step five: the pressure of each air bag in the four-cavity air bag (2) is kept unchanged, and the pulse pressure sensor (3) acquires the optimal pulse wave signal and transmits the optimal pulse wave signal to the signal acquisition control unit (6) for analysis, so that pulse wave measurement is completed.
2. The pulse wave acquisition device according to claim 1, characterized in that the signal acquisition control unit (6) employs a single-chip microcomputer; the signal acquisition control unit (6) displays pulse signals through a display unit.
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| CN201810928008.2A CN109009044B (en) | 2018-08-15 | 2018-08-15 | Novel pulse wave acquisition device |
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| CN201810928008.2A CN109009044B (en) | 2018-08-15 | 2018-08-15 | Novel pulse wave acquisition device |
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| CN109009044B true CN109009044B (en) | 2024-01-02 |
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| CN109730667A (en) * | 2018-12-29 | 2019-05-10 | 出门问问信息科技有限公司 | Heart rate measurement device |
| CN110584624B (en) * | 2019-09-18 | 2022-04-01 | 中国科学院微电子研究所 | Pulse wave feature point identification method based on included angle value |
| TWI721585B (en) * | 2019-10-01 | 2021-03-11 | 友達光電股份有限公司 | Pulse diagnostic equipment |
| CN110974193A (en) * | 2019-12-30 | 2020-04-10 | 北京中科芯健医疗科技有限公司 | Human body function state evaluation device |
| CN111920394B (en) * | 2020-06-23 | 2024-10-22 | 泰安市泰医医疗器械有限公司 | Air bag type pulse probe and manufacturing and using methods thereof |
| CN113974581B (en) * | 2021-12-15 | 2023-10-20 | 曾国伟 | Matching method and system for dynamic incision characteristics of pulse diagnosis |
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