CN110327026B - Respiratory heartbeat detection device and method - Google Patents
Respiratory heartbeat detection device and method Download PDFInfo
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- CN110327026B CN110327026B CN201910722738.1A CN201910722738A CN110327026B CN 110327026 B CN110327026 B CN 110327026B CN 201910722738 A CN201910722738 A CN 201910722738A CN 110327026 B CN110327026 B CN 110327026B
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- piezoelectric film
- heartbeat detection
- cracking
- detection device
- respiratory
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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
- A61B5/0205—Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
-
- 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
- A61B5/024—Detecting, measuring or recording pulse rate or heart rate
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
- A61B5/0816—Measuring devices for examining respiratory frequency
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6813—Specially adapted to be attached to a specific body part
- A61B5/6823—Trunk, e.g., chest, back, abdomen, hip
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6843—Monitoring or controlling sensor contact pressure
Abstract
The invention discloses a respiratory heartbeat detection device and a respiratory heartbeat detection method, comprising the following steps: the body is a flexible sheet body with a specified thickness, one surface of the flexible sheet body is a cracking surface with a plurality of cracking structures, and the crack depth of the cracking structures is smaller than the specified thickness; the piezoelectric film is fixed on the cracking surface in a mode of covering at least two cracking structures; the display instrument is electrically connected with the piezoelectric film to output breathing and heartbeat data according to curvature change data of the body detected by the piezoelectric film, and the effect that people breathe in and exhale and can accurately sense is achieved by providing a novel breathing and heartbeat detection device.
Description
Technical Field
The invention relates to the technical field of breath detection, in particular to a breath heartbeat detection device and method.
Background
The existing respiration sensing device adopts tension sensing, namely a belt with adjustable length is tied on the chest and the abdomen, a tension sensor is arranged on the belt, when a person breathes, the chest and the abdomen are fluctuated, and the tensioned belt can be further tensioned or relaxed along with the breathing. The body is tightened in this way, the user feels uncomfortable, in addition, if the belt is loosened, the sensing distortion is easy to be caused, the chest expansion or abdomen bulge can be accurately sensed when the user inhales, and the data of chest recovery and fasting actions after expiration can not be accurately sensed.
Disclosure of Invention
The invention mainly aims to provide a respiratory heartbeat detection device and a respiratory heartbeat detection method, and aims to solve the technical problem that the existing respiratory sensing device cannot accurately sense data during expiration.
The invention provides a respiratory heartbeat detection device, which comprises:
the body is a flexible sheet body with a specified thickness, one surface of the flexible sheet body is a cracking surface with a plurality of cracking structures, and the crack depth of the cracking structures is smaller than the specified thickness;
the piezoelectric film is fixed on the cracking surface in a mode of covering at least two cracking structures;
the display instrument is electrically connected with the piezoelectric film, so as to output respiratory heartbeat data according to curvature change data of the body detected by the piezoelectric film.
Preferably, the curvature change data is a charge value from the piezoelectric film.
Preferably, the piezoelectric film further comprises a fixing structure for fixing the piezoelectric film to the cracking surface.
Preferably, the fixing structure is a protruding structure with a needle-shaped tip, and the fixing structure is arranged on the surface of the cracking surface.
Preferably, the fixing structure is an integral member with the body.
Preferably, the device further comprises a fastening device, wherein the fastening device is arranged on the opposite side of the cracking surface and is used for fastening the body and the body to be detected together.
Preferably, a sealing device is further included, and the sealing device wraps the body and the piezoelectric film.
Preferably, the sealing means comprises solid silica gel or rubber.
The invention also provides a breath heartbeat detection method which is applied to the breath heartbeat detection device and comprises the following steps:
acquiring voltage difference data from the piezoelectric film;
and outputting respiratory heartbeat data according to the voltage difference data.
Preferably, the step of outputting respiratory heartbeat data according to the voltage difference data includes:
amplifying the voltage difference data;
and outputting and displaying the amplified voltage difference data according to the time of the received voltage difference data.
The breath and heartbeat detection device and the method provided by the invention realize the effect that the breath and the heartbeat of a user can be accurately perceived by providing a novel breath and heartbeat detection device.
Drawings
FIG. 1 is a schematic diagram of a respiratory heartbeat detection device according to an embodiment of the present invention;
fig. 2 is a flowchart of an embodiment of a respiratory heartbeat detection method according to the present invention.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. 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.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1, the respiratory heartbeat detection device provided by the present invention includes: the body 1, the body 1 is a flexible sheet body with a designated thickness, one surface of the flexible sheet body is a cracking surface with a plurality of cracking structures 11, and the crack depth of the cracking structures 11 is smaller than the designated thickness; the piezoelectric film 2 is fixed on the cracking surface in a mode that the piezoelectric film 2 covers at least two cracking structures 11; the display instrument is electrically connected with the piezoelectric film 2 to output breathing heartbeat data according to curvature change data of the body 1 detected by the piezoelectric film 2. In this embodiment, the cleavage structures 11 of the cleavage surfaces may be irregularly shaped and the pitches between the cleavage structures may be uniform. In this embodiment, taking breath detection as an example, the opposite surface of the cracking surface is closely attached to the abdomen or the thorax of the tested person, and the abdomen or the thorax of the tested person will continuously undulate along with the breath of the tested person. The relief of abdomen or chest of the person to be tested will generate pressure to the opposite face of the fracture surface, the opposite face of the fracture surface will transmit the pressure to the fracture surface, the fracture surface receives the pressure from the opposite face of the fracture surface, wherein, when the person to be tested inhales, the opposite face of the fracture surface generates an expanding force for forcing the fracture structure 11 of the fracture surface to expand outwards, at this time, the piezoelectric film 2 fixed on the fracture structure 11 will receive the expanding force, the expanding force will be a pulling force on the piezoelectric film 2, the piezoelectric film 2 will generate a voltage when receiving the pulling force, the larger the pulling force received by the piezoelectric film 2 is, the more the generated voltage is, the more the charge generated is, and the positive charge value is set when the display receives the charge generated when the piezoelectric film 2 receives the pulling force; when a person to be tested exhales, the opposite surface of the cracking surface generates a shrinkage force on the cracking surface, namely the shrinkage force from the cracking structure 11 is received on the piezoelectric film 2, and the piezoelectric film 2 generates electric charges when the shrinkage force is received, the larger the shrinkage force is, the larger the generated voltage is, the more the generated electric charges are, and the negative charge value is set when the display receives the electric charges generated when the piezoelectric film 2 receives the shrinkage force; the testee continuously breathes, at this time, the opposite face of the cracking face will continuously receive the pressure from the testee, and transmit the pressure to the cracking structure 11 of the cracking face, the cracking structure 11 will continuously expand and shrink, while expanding, the tension is generated to the piezoelectric film 2 fixed on the cracking structure 11, and when shrinking, the shrinkage force is generated to the piezoelectric film 2. The piezoelectric film 2 generates voltage when receiving tensile force or contraction force, after the piezoelectric film 2 is fixed on the cracking surface in a mode of covering at least two cracking structures 11, the tensile force or contraction force is generated on the piezoelectric film 2 when the cracking structures 11 are expanded, the display instrument is electrically connected with the piezoelectric film 2, receives positive and negative charge values from the piezoelectric film 2, amplifies the received charge values to a value suitable for display, and displays the charge values in real time and synchronously in a coordinate axis mode in the display instrument according to the time of receiving the charge values, so that the respiratory rate index of a to-be-tested person is formed. The opposite surface of the cracking surface is tightly attached to the abdomen or the chest of the person to be tested, so that the data of inspiration and expiration of the person to be tested can be accurately tested, and the accurate perception of the breath of the person to be tested is realized.
In this embodiment, in order to enable the body 1 to better detect the forehead respiratory data of the to-be-tested person, the opposite surface of the split surface may be tightly attached to the underwear of the to-be-tested person, so as to detect the respiratory data of the to-be-tested person. The opposite face of the cracking face is stuck to the clothing to be tested of the person to be tested through the substance with viscosity, or the opposite face of the cracking face is provided with the substance capable of fixing the body 1 on the underwear such as a magic tape, and the body 1 is tightly attached to the underwear of the person to be tested, so that the body 1 can be attached to the underwear of the person to be tested for a long time without affecting test data. Therefore, the breathing data of the person to be tested can be accurately tested, and the abdomen or the chest of the person to be tested can be conveniently and tightly attached. Meanwhile, if long-term detection is needed, the body 1 can be released from the clothes of the person to be tested, and the clothes can be conveniently cleaned after being taken down.
In one embodiment, the piezoelectric film 2 is fixed on the fracture surface by the fixing structure 3. The fixed structure 3 is a protruding structure with a needle-shaped tip, and the fixed structure 3 is arranged on the surface of the cracking surface. The fixing structure 3 and the body 1 are integrally formed. In this embodiment, the fixing structure 3 is a needle protrusion disposed on the surface of the fracture surface, and a perforation is formed at the position of the piezoelectric film 2 fixed on the corresponding fixing structure 3 on the surface of the fracture surface, and the piezoelectric film 2 is fixed on the body 1 through the perforated fixing structure 3, so as to prevent the piezoelectric film 2 from separating from the body 1.
In one embodiment, sealing means are also included, which encase the body 1 and the piezoelectric film 2. In this embodiment, the sealing device is a flexible material that completely wraps the body 1 and the piezoelectric film 2 covering the body 1, and seals the whole body 1, and is closely attached to the underwear of the person to be tested or the abdomen or chest of the person to be tested. By being provided with sealing device, owing to sealing device has flexibility, the pressure that waits for tester's belly or thorax to act on sealing device can directly transmit to body 1, does not influence the accuracy of test data, simultaneously through being provided with sealing device, prevents that other substances such as user's sweat from causing pollution etc. to body 1. If the body 1 is attached to the underwear of the person to be tested, the body 1 can be directly taken for cleaning. The sealing means comprises solid silica gel or rubber.
Referring to fig. 2, the present invention further provides a respiratory heartbeat detection method, which is applied to the respiratory heartbeat detection device, including:
s1, acquiring voltage difference data from a piezoelectric film;
s2, outputting respiratory heartbeat data according to the voltage difference data.
In this embodiment, the voltage difference data is a charge value generated when the piezoelectric film is subjected to a tensile force. In this embodiment, when the testee inhales, the opposite surface of the cracking surface generates an expansion force to force the cracking structure of the cracking surface to expand outwards, at this time, the piezoelectric film fixed on the cracking structure will receive the expansion force, the expansion force will be a tensile force acting on the piezoelectric film, the piezoelectric film will generate a voltage when receiving the tensile force, after the piezoelectric film is fixed on the cracking surface in a manner of covering not less than two cracking structures, the greater the tensile force received by the piezoelectric film, the greater the generated voltage, the more charges it generates, and when the display receives the charges generated when the piezoelectric film receives the tensile force, the above charge value is set to a positive charge value; when a person to be tested exhales, the opposite surface of the cracking surface generates shrinkage force on the cracking surface, namely the shrinkage force from the cracking structure is received on the piezoelectric film, and the piezoelectric film also generates electric charges when the shrinkage force is received, the larger the shrinkage force is, the larger the generated voltage is, the more the generated electric charges are, and the charge value is set to be a negative charge value when the display receives the electric charges generated when the piezoelectric film receives the shrinkage force; the testee continuously breathes, at the moment, the opposite face of the cracking face continuously receives pressure from the testee, the pressure is transmitted to the cracking structure of the cracking face, the cracking structure continuously expands or contracts, tension is generated on the piezoelectric film fixed on the cracking structure while expanding, and contraction force is generated on the piezoelectric film while contracting. The piezoelectric film generates voltage when receiving the tensile force or the contraction force, and after the piezoelectric film is fixed on the cracking surface in a mode of covering at least two cracking structures, the cracking structures can generate the tensile force or the contraction force on the piezoelectric film when being stretched, and the piezoelectric film generates voltage when receiving the tensile force or the contraction force. After the control system receives the voltage difference data of the piezoelectric film, the voltage difference data is calculated and processed, and the breathing heartbeat frequency index is formed according to the time and the size of the received voltage difference data and displayed synchronously in real time.
S2, outputting breath heartbeat data according to the voltage difference data, wherein the step comprises the following steps:
s21, amplifying the voltage difference data;
s22, outputting and displaying the amplified voltage difference data according to the time of the received voltage difference data.
In this embodiment, the voltage difference data is a charge value, the control system receives positive and negative charge values from the piezoelectric film, amplifies the received charge values to a value suitable for display, and then displays the amplified charge values in real time and synchronously in a coordinate axis form in the display according to the time of receiving the charge values, thereby forming a respiratory heartbeat frequency index.
In summary, the respiratory heartbeat detection device and the respiratory heartbeat detection method provided by the invention can realize the effect that people can accurately sense when inhaling and exhaling by providing a novel respiratory heartbeat detection device.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes using the descriptions and drawings of the present invention or directly or indirectly applied to other related technical fields are included in the scope of the invention.
Claims (10)
1. A respiratory heartbeat detection device, comprising:
the body is a flexible sheet body with a specified thickness, one surface of the flexible sheet body is a cracking surface with a plurality of cracking structures, and the crack depth of the cracking structures is smaller than the specified thickness; the opposite surface of the fracture surface is tightly attached to the abdomen or the chest of the person to be tested;
the piezoelectric film is fixed on the cracking surface in a mode of covering at least two cracking structures;
the display instrument is electrically connected with the piezoelectric film, so as to output respiratory heartbeat data according to curvature change data of the body detected by the piezoelectric film.
2. The respiratory heartbeat detection device of claim 1 wherein the curvature change data is a charge value from the piezoelectric film.
3. The respiratory heartbeat detection device of claim 1 further including a securing structure securing the piezoelectric film to the fracture surface.
4. The respiratory heartbeat detection device of claim 3 wherein the fixation structure is a raised structure with a needle-like tip, the fixation structure being disposed on the surface of the cleavage plane.
5. The respiratory heartbeat detection device of claim 4 wherein the securing structure is an integral member with the body.
6. The respiratory heartbeat detection device of claim 1 further including a fastening means disposed on an opposite side of the split face for fastening the body to a body to be detected.
7. The respiratory heartbeat detection device of claim 1 further including a sealing device wrapping the body and the piezoelectric film.
8. The respiratory heartbeat detection device of claim 7 wherein the sealing device comprises solid silica gel or rubber.
9. A respiratory heartbeat detection method, characterized in that it is applied to the respiratory heartbeat detection device according to any one of claims 1 to 8, comprising:
acquiring voltage difference data from the piezoelectric film;
and outputting respiratory heartbeat data according to the voltage difference data.
10. The respiratory heartbeat detection method of claim 9 wherein the step of outputting respiratory heartbeat data from the voltage difference data includes:
amplifying the voltage difference data;
and outputting and displaying the amplified voltage difference data according to the time of the received voltage difference data.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2019104073644 | 2019-05-16 | ||
| CN201910407364 | 2019-05-16 |
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| CN110327026A CN110327026A (en) | 2019-10-15 |
| CN110327026B true CN110327026B (en) | 2023-08-08 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105612588A (en) * | 2013-12-03 | 2016-05-25 | 多次元能源系统研究集团 | High-sensitivity sensor comprising conductive thin film containing cracks and method for manufacturing same |
| WO2017095097A1 (en) * | 2015-11-30 | 2017-06-08 | 재단법인 멀티스케일 에너지시스템 연구단 | High-sensitivity sensor containing linearly induced cracks and method for manufacturing same |
| CN107830877A (en) * | 2017-10-23 | 2018-03-23 | 大连理工大学 | A kind of piezoelectric film sensor of oval flexible substrates |
| CN109124845A (en) * | 2018-09-26 | 2019-01-04 | 杨松 | The dedicated sensing abdominal belt of pregnant woman |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6728630B2 (en) * | 2015-10-29 | 2020-07-22 | セイコーエプソン株式会社 | Piezoelectric element, piezoelectric module, electronic device, and method for manufacturing piezoelectric element |
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- 2019-08-06 CN CN201910722738.1A patent/CN110327026B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105612588A (en) * | 2013-12-03 | 2016-05-25 | 多次元能源系统研究集团 | High-sensitivity sensor comprising conductive thin film containing cracks and method for manufacturing same |
| WO2017095097A1 (en) * | 2015-11-30 | 2017-06-08 | 재단법인 멀티스케일 에너지시스템 연구단 | High-sensitivity sensor containing linearly induced cracks and method for manufacturing same |
| CN107830877A (en) * | 2017-10-23 | 2018-03-23 | 大连理工大学 | A kind of piezoelectric film sensor of oval flexible substrates |
| CN109124845A (en) * | 2018-09-26 | 2019-01-04 | 杨松 | The dedicated sensing abdominal belt of pregnant woman |
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| CN110327026A (en) | 2019-10-15 |
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