CN111134716A - Bowel sound collection system - Google Patents
Bowel sound collection system Download PDFInfo
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- CN111134716A CN111134716A CN202010005277.9A CN202010005277A CN111134716A CN 111134716 A CN111134716 A CN 111134716A CN 202010005277 A CN202010005277 A CN 202010005277A CN 111134716 A CN111134716 A CN 111134716A
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- power supply
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- 238000012545 processing Methods 0.000 claims abstract description 20
- 239000000758 substrate Substances 0.000 claims abstract description 18
- 239000000919 ceramic Substances 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 239000006260 foam Substances 0.000 claims abstract description 11
- 229910001369 Brass Inorganic materials 0.000 claims description 11
- 239000010951 brass Substances 0.000 claims description 11
- 230000003321 amplification Effects 0.000 claims description 6
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 6
- 210000003815 abdominal wall Anatomy 0.000 claims description 3
- 230000001012 protector Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000001228 spectrum Methods 0.000 abstract description 3
- 210000001015 abdomen Anatomy 0.000 description 5
- 238000011160 research Methods 0.000 description 4
- 230000003187 abdominal effect Effects 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 210000003736 gastrointestinal content Anatomy 0.000 description 2
- 230000000968 intestinal effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 210000000813 small intestine Anatomy 0.000 description 2
- 230000005236 sound signal Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000002555 auscultation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003759 clinical diagnosis Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 210000005095 gastrointestinal system Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B7/00—Instruments for auscultation
- A61B7/02—Stethoscopes
- A61B7/04—Electric stethoscopes
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- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Measuring And Recording Apparatus For Diagnosis (AREA)
Abstract
The invention discloses an bowel sound acquisition system, which comprises: a piezoelectric sensor for acquiring acoustic bowel sounds signals, comprising: the piezoelectric ceramic device comprises a shell, a flexible substrate, a piezoelectric disc, a foam block and a top cover, wherein the flexible substrate, the piezoelectric disc, the foam block and the top cover are sequentially arranged in the shell from bottom to top; the piezoelectric disc is connected to the signal processing module through a lead; the signal processing module includes: the preamplifier, the primary filter, the primary amplifying circuit, the secondary amplifying circuit, the A/D converter, the microprocessor, the wireless transmission module and the upper computer are sequentially connected with the piezoelectric disc; the piezoelectric sensor is connected with the signal processing module, collects signals transmitted by the conventional data acquisition unit, stores the signals in the upper computer, and obtains associated change data through conversion of conventional software. The identification is made from their time and the spread spectrum map information is analyzed based on short time fourier.
Description
Technical Field
The invention relates to an acquisition system, in particular to an intestinal sounding acquisition system.
Background
The bowel sound is one of the most important sign signals of the human body, is the sound generated by friction and impact between intestinal contents and between the intestinal contents and the intestinal wall caused by the movement of the small intestine of the human body, and is the reflection of the movement state of the small intestine. The bowel sound is not regular like heart sound and lung sound, and the aperiodicity and randomness are strong, so that great difficulty is brought to clinical diagnosis and medical research. Cannon in 1905 was the first to systematically interpret the sounds auscultated in the abdomen, correlating abdominal sounds with the gastrointestinal system. With the progress of medical research, bowel sounds have become an important index for diagnosing abdominal diseases. At present, the medical diagnosis mode and research method for the bowel sound only stay in the form of abdominal auscultation.
With the development of medical science and the progress of scientific technology, people's understanding on bowel sounds is deepened gradually, and the physical sign of bowel sounds is more and more emphasized by people, so people begin to research some intelligent medical equipment capable of collecting and identifying bowel sounds, and part of the schemes can realize the identification of bowel sounds, but the identification method needs to be processed by a special data background server, the collection equipment cannot be used alone, the limitation is large, and the equipment is not intelligent enough, so that the sharing and further development and utilization of resource information are not facilitated.
Disclosure of Invention
An object of the present invention is to solve at least the above problems and/or disadvantages and to provide at least the advantages described hereinafter.
To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided an bowel sounds collecting system comprising:
a piezoelectric sensor for acquiring acoustic bowel sounds signals, comprising: the piezoelectric ceramic device comprises a shell, a flexible substrate, a piezoelectric disc, a foam block and a top cover, wherein the flexible substrate, the piezoelectric disc, the foam block and the top cover are sequentially arranged in the shell from bottom to top; the piezoelectric disc is connected to the signal processing module through a lead; the flexible substrate is in contact with the abdominal wall so as to collect bowel sounds through the piezoelectric sensor;
the signal processing module includes: a preamplifier connected to the piezoelectric disc; a first-stage filter connected to the preamplifier; a first-stage amplifying circuit connected to the first-stage filter; a second-order filter connected to the first-order amplification circuit; a second-stage amplifying circuit connected to the second-stage filter; an A/D converter connected to the second-stage amplification circuit; a microprocessor connected with the A/D converter; the wireless transmission module is connected with the microprocessor; the upper computer is connected with the wireless transmission module;
the power supply is connected with the piezoelectric sensor and the signal processing module;
the power supply management module is connected with a power supply; the power supply management module is used for managing the power supply to provide a stable power supply; the power supply power management module comprises: a circuit breaker connected to a power supply; a power filter connected to the circuit breaker; a safety relay connected to the power filter; a controller connected to the safety relay; a surge current protector connected to the safety relay; and the switching power supply is connected with the controller.
Preferably, the piezoelectric disc includes: the device comprises a brass circular base and a PZT ceramic disc arranged on the brass circular base.
Preferably, the diameter of the brass circular base is 27mm, and the diameter of the PZT ceramic disc is 20 mm.
Preferably, the power supply is located on a flexible substrate; the power supply control module is positioned on the flexible substrate and used for converting the output voltage of the power supply into constant voltage output and cutting off or connecting the power supply of the power supply to the piezoelectric sensor and the signal processing module.
Preferably, the wireless transmission module is one or more of a WIFI module, a bluetooth module, a GPRS module, and an SMS module.
The invention at least comprises the following beneficial effects: the piezoelectric sensor consists of a shell, a flexible substrate, a piezoelectric disc, a foam block and a top cover; the piezoelectric disc consists of a PZT ceramic circle, 20mm and 27mm in diameter, respectively, on top of a brass circular base. The piezoelectric sensor is triggered by vibration, and the shell can effectively block ambient noise. Further, the outer shell is made of an aluminum material, and due to its smoothness, frictional noise of the belt and the clothes is effectively suppressed. Inserting a piece of foam under the top cover to push the piezoelectric transducer and diaphragm downward to establish better contact with the abdomen; vibrations of the abdomen related to bowel sounds can be efficiently transmitted to the piezoelectric disc; when monitoring bowel sounds, the sensor was compared to the state of the art electronic stethoscope (Litmann3200) and showed similar performance. The piezoelectric sensor is connected with the signal processing module, collects signals transmitted by the conventional data acquisition unit, stores the signals in the upper computer, and obtains associated change data through conversion of conventional software. The identification is made from their time and the spread spectrum map information is analyzed based on short time fourier.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Description of the drawings:
FIG. 1 is a schematic structural view of a piezoelectric sensor according to the present invention;
fig. 2 is a schematic structural view of the bowel sound collecting system of the present invention.
The specific implementation mode is as follows:
the present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
The invention relates to an bowel sound acquisition system, which comprises:
a piezoelectric sensor for acquiring acoustic bowel sounds signals, comprising: the piezoelectric ceramic device comprises a shell 1, wherein a flexible substrate 2, a piezoelectric disc 3, a foam block 4 and a top cover 5 are sequentially arranged in the shell from bottom to top; the piezoelectric disc 3 is connected to a signal processing module through a lead; the flexible substrate is in contact with the abdominal wall so as to collect bowel sounds through the piezoelectric sensor;
the signal processing module includes: a preamplifier connected to the piezoelectric disc; a first-stage filter connected to the preamplifier; a first-stage amplifying circuit connected to the first-stage filter; a second-order filter connected to the first-order amplification circuit; a second-stage amplifying circuit connected to the second-stage filter; an A/D converter connected to the second-stage amplification circuit; a microprocessor connected with the A/D converter; the wireless transmission module is connected with the microprocessor; the upper computer is connected with the wireless transmission module;
the power supply is connected with the piezoelectric sensor and the signal processing module;
the power supply management module is connected with a power supply; the power supply management module is used for managing the power supply to provide a stable power supply; the power management module microprocessor includes: a circuit breaker connected to a power supply; a power filter connected to the circuit breaker; a safety relay connected to the power filter; a controller connected to the safety relay; a surge current protector connected to the safety relay; a switching power supply connected to the controller;
the piezoelectric sensor consists of a shell, a flexible substrate, a piezoelectric disc, a foam block and a top cover; the piezoelectric disc consists of a PZT ceramic circle, 20mm and 27mm in diameter, respectively, on top of a brass circular base. The piezoelectric sensor is triggered by vibration, and the shell can effectively block ambient noise. Further, the outer shell is made of an aluminum material, and due to its smoothness, frictional noise of the belt and the clothes is effectively suppressed. Inserting a piece of foam under the top cover to push the piezoelectric transducer and diaphragm downward to establish better contact with the abdomen; vibrations of the abdomen related to bowel sounds can be efficiently transmitted to the piezoelectric disc; when monitoring bowel sounds, the sensor was compared to the state of the art electronic stethoscope (Litmann3200) and showed similar performance. The piezoelectric sensor is connected with the signal processing module, collects signals transmitted by the conventional data acquisition unit, stores the signals in the upper computer, and obtains associated change data through conversion of conventional software. The identification is made from their time and the spread spectrum map information is analyzed based on short time fourier.
According to the invention, a signal detected by a piezoelectric sensor is input into a signal processing module, and the signal processing module amplifies and filters a bowel sound signal to obtain a filtered and amplified bowel sound; the filtered and amplified bowel sounds are input to an a/D converter to be converted into digital signal bowel sounds. The digital signal bowel sounds can be transmitted to a microprocessor and stored, and transmitted to an upper computer through a wireless transmission module for analysis and processing.
In the above technical solution, the piezoelectric disk 3 includes: the brass circular base 30 and the PZT ceramic disc 31 arranged on the brass circular base 30, and effective bowel sound signal detection can be realized by adopting the mode.
In the technical scheme, the diameter of the brass circular base is 27mm, and the diameter of the PZT ceramic disc is 20 mm.
In the above technical solution, the power supply is located on the flexible substrate; the power supply control module is positioned on the flexible substrate and used for converting the output voltage of the power supply into constant voltage output and cutting off or connecting the power supply of the power supply to the piezoelectric sensor and the signal processing module.
In the above technical solution, the wireless transmission module is one or more of a WIFI module, a bluetooth module, a GPRS module, and an SMS module.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (5)
1. An bowel sound collection system, comprising:
a piezoelectric sensor for acquiring acoustic bowel sounds signals, comprising: the piezoelectric ceramic device comprises a shell, a flexible substrate, a piezoelectric disc, a foam block and a top cover, wherein the flexible substrate, the piezoelectric disc, the foam block and the top cover are sequentially arranged in the shell from bottom to top; the piezoelectric disc is connected to the signal processing module through a lead; the flexible substrate is in contact with the abdominal wall so as to collect bowel sounds through the piezoelectric sensor;
the signal processing module includes: a preamplifier connected to the piezoelectric disc; a first-stage filter connected to the preamplifier; a first-stage amplifying circuit connected to the first-stage filter; a second-order filter connected to the first-order amplification circuit; a second-stage amplifying circuit connected to the second-stage filter; an A/D converter connected to the second-stage amplification circuit; a microprocessor connected with the A/D converter; the wireless transmission module is connected with the microprocessor; the upper computer is connected with the wireless transmission module;
the power supply is connected with the piezoelectric sensor and the signal processing module;
the power supply management module is connected with a power supply; the power supply management module is used for managing the power supply to provide a stable power supply; the power supply power management module comprises: a circuit breaker connected to a power supply; a power filter connected to the circuit breaker; a safety relay connected to the power filter; a controller connected to the safety relay; a surge current protector connected to the safety relay; and the switching power supply is connected with the controller.
2. The bowel sound collection system of claim 1, wherein the piezoelectric disc comprises: the device comprises a brass circular base and a PZT ceramic disc arranged on the brass circular base.
3. The bowel sound collection system of claim 1, wherein the brass circular base has a diameter of 27mm and the ceramic disc of PZT has a diameter of 20 mm.
4. The bowel sounds collection system of claim 1, wherein said power source is located on a flexible substrate; the power supply control module is positioned on the flexible substrate and used for converting the output voltage of the power supply into constant voltage output and cutting off or connecting the power supply of the power supply to the piezoelectric sensor and the signal processing module.
5. The bowel sound collection system of claim 1, wherein the wireless transmission module is one or more of a WIFI module, a bluetooth module, a GPRS module, and a SMS module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010005277.9A CN111134716A (en) | 2020-01-03 | 2020-01-03 | Bowel sound collection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010005277.9A CN111134716A (en) | 2020-01-03 | 2020-01-03 | Bowel sound collection system |
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| Publication Number | Publication Date |
|---|---|
| CN111134716A true CN111134716A (en) | 2020-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010005277.9A Pending CN111134716A (en) | 2020-01-03 | 2020-01-03 | Bowel sound collection system |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201591576U (en) * | 2010-02-11 | 2010-09-29 | 姜红林 | Remote mobile phone diagnostic instrument |
| CN102419183A (en) * | 2011-08-18 | 2012-04-18 | 中国飞机强度研究所 | Piezoelectric sensor and processing method thereof |
| CN202793648U (en) * | 2012-10-15 | 2013-03-13 | 寿光市飞田电子有限公司 | Ultrasonic sensor |
| CN202888247U (en) * | 2012-07-18 | 2013-04-17 | 成都汇通西电电子有限公司 | Piezoceramic transducer and housing thereof |
| CN103799999A (en) * | 2012-12-21 | 2014-05-21 | 常州先进制造技术研究所 | Wireless pulse meter device based on piezoelectric buzzer |
| CN204027616U (en) * | 2014-07-31 | 2014-12-17 | 山东省德鲁计量科技有限公司 | A kind of transducer of ultrasonic heat meter |
| CN104305961A (en) * | 2014-10-20 | 2015-01-28 | 清华大学 | Bowel sounds monitoring and recognizing system |
| CN207530538U (en) * | 2017-12-05 | 2018-06-22 | 达格测试设备（苏州）有限公司 | A kind of safety type power management module |
| CN108514428A (en) * | 2018-04-12 | 2018-09-11 | 清华大学 | Gurgling sound harvester |
| CN208988934U (en) * | 2018-05-04 | 2019-06-18 | 湖南川马医疗科技有限公司 | It is a kind of to auscultate clearly, convenient for the Intelligent stethoscope of clinical research and teaching |
-
2020
- 2020-01-03 CN CN202010005277.9A patent/CN111134716A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201591576U (en) * | 2010-02-11 | 2010-09-29 | 姜红林 | Remote mobile phone diagnostic instrument |
| CN102419183A (en) * | 2011-08-18 | 2012-04-18 | 中国飞机强度研究所 | Piezoelectric sensor and processing method thereof |
| CN202888247U (en) * | 2012-07-18 | 2013-04-17 | 成都汇通西电电子有限公司 | Piezoceramic transducer and housing thereof |
| CN202793648U (en) * | 2012-10-15 | 2013-03-13 | 寿光市飞田电子有限公司 | Ultrasonic sensor |
| CN103799999A (en) * | 2012-12-21 | 2014-05-21 | 常州先进制造技术研究所 | Wireless pulse meter device based on piezoelectric buzzer |
| CN204027616U (en) * | 2014-07-31 | 2014-12-17 | 山东省德鲁计量科技有限公司 | A kind of transducer of ultrasonic heat meter |
| CN104305961A (en) * | 2014-10-20 | 2015-01-28 | 清华大学 | Bowel sounds monitoring and recognizing system |
| CN207530538U (en) * | 2017-12-05 | 2018-06-22 | 达格测试设备（苏州）有限公司 | A kind of safety type power management module |
| CN108514428A (en) * | 2018-04-12 | 2018-09-11 | 清华大学 | Gurgling sound harvester |
| CN208988934U (en) * | 2018-05-04 | 2019-06-18 | 湖南川马医疗科技有限公司 | It is a kind of to auscultate clearly, convenient for the Intelligent stethoscope of clinical research and teaching |
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Application publication date: 20200512 |