CN202113066U - Esophagus and digestive tract pressure detecting system - Google Patents
Esophagus and digestive tract pressure detecting system Download PDFInfo
- Publication number
- CN202113066U CN202113066U CN2011201599411U CN201120159941U CN202113066U CN 202113066 U CN202113066 U CN 202113066U CN 2011201599411 U CN2011201599411 U CN 2011201599411U CN 201120159941 U CN201120159941 U CN 201120159941U CN 202113066 U CN202113066 U CN 202113066U
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- detection system
- amplifier
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Abstract
The utility model relate to the field of digestive tract dynamic detection and provides an esophagus and digestive tract pressure detecting system aiming to overcome the shortcomings of an existing esophagus and digestive tract pressure detecting system. The detecting system comprises a pressure source, a piezometric tube, a sensor, an amplifier, a filter and an A/D (analog/digital) converter, wherein the pressure source is connected with the piezometric tube, the piezometric tube is connected with the sensor, the sensor is connected with the amplifier, and the amplifier is connected with a computer through the filter and the A/D converter. The esophagus and digestive tract pressure detecting system adopting the pressure source stabilizing technology is capable of enhancing detecting accuracy, pressure signals are amplified and filtered so that the common-mode rejection ratio is higher than 70dB, the amplification factor is higher than 10,000, and simultaneously, the esophagus and digestive tract pressure detecting system adopting a digital potentiometer is simpler in electronic circuits and structure, so that adjustment is more convenient.
Description
Technical field
The present invention relates to the digestive tract power detection range, refer more particularly to a kind of esophagus, gastrointestinal pressure detection system.
Background technology
The inspection that it is be used for that diagnosis and the postoperative function of digestive tract disease estimate a kind of safe, convenient, not damaged that digestive tract power detects, diagnosis is high is technological.Esophagus, gastrointestinal pressure detect promptly through pressure source, pressure catheter esophagus and anorectal pressure and pressure change signal are delivered to pressure transducer; Pressure transducer converts pressure change signal to the signal of telecommunication and is transferred to the electronic circuit board signal input part; Through amplifying; Filtering, data acquisition and computer data are handled, last computer shows the pressure data of gathering and pressure figure and store, and testing result is printed.For esophagus, gastrointestinal pressure detection system, the stability of pressure source is very crucial for the accuracy that detects.
The utility model content
This utility model provides a kind of esophagus, gastrointestinal pressure detection system to the deficiency of existing esophagus, gastrointestinal pressure detection system.
This utility model is for realizing above-mentioned purpose; The technical scheme that adopts is a kind of esophagus, gastrointestinal pressure detection system; Comprise pressure source, pressure-measuring pipe, pick off, amplifier, wave filter, A/D converter, pressure source is connected with pressure-measuring pipe, and pressure-measuring pipe links to each other with pick off; Pick off is connected with amplifier, and amplifier links to each other with computer through wave filter, A/D converter.
Described pressure detecting system adopts high sensitivity, the pressure transducer of high accuracy and high stability.
It is the pressure transmitting medium that described pressure detecting system adopts liquid, adopts the pressure-measuring pipe of medical high polymer plastic pipe as system, and this pressure-measuring pipe tube wall is hard; Inner-walls of duct is smooth; Caliber is suitable, and body is pliable and tough, can prevent effectively because of the influence to the pressure measurement value of damping and resonance effect.
Described pressure detecting system comes pressure source pressure is realized monitoring in real time through software control system and automatic feedback technique, the pressure stability that makes pressure source in the allowable error scope of setting value, thereby do not influence the accuracy of detection.
Described pressure detecting system becomes bridge amplifier with low noise, high input impedance operational amplifier modular design; Further combine voltage-controlled active filter; To pressure signal amplify, Filtering Processing makes its common mode rejection ratio (CMRR) greater than 70dB, amplification adopts digital regulation resistance simultaneously greater than 10000; Make electronic circuit and structure simpler and more direct, regulate more convenient.
Described pressure source is connected with pressure-measuring pipe, and pressure-measuring pipe links to each other with pick off, and pick off is connected with amplifier, and amplifier links to each other with computer through wave filter, A/D converter.
The esophagus that this utility model provides, gastrointestinal pressure detection system have adopted the pressure source stabilization technique; Can improve the accuracy of detection; To pressure signal amplify, Filtering Processing makes its common mode rejection ratio (CMRR) greater than 70dB, amplification adopts digital regulation resistance simultaneously greater than 10000; Make electronic circuit and structure simpler and more direct, regulate more convenient.
Description of drawings
Fig. 1 is esophagus, gastrointestinal pressure detection system structural representation;
Fig. 2 is a pressure signal treatment technology circuit diagram;
Fig. 3 difference bridge amplifier circuit diagram.
The specific embodiment
For technological means, creation characteristic that this utility model is realized, reach purpose and be easy to understand understanding with effect, below in conjunction with concrete diagram, further set forth the present invention.
Fig. 1 is a kind of esophagus of this utility model, gastrointestinal pressure detection system structural representation, and pick off is the critical component of digestive tract power detector, and the system requirements pick off has high sensitivity, high accuracy and high stability.Pressure conduction is to convert esophageal pressure signal and anorectal pressure signal into the signal of telecommunication to handle, and this signal of telecommunication is very little, and requirement must be conducted this faint signal undistortedly.We adopt liquid is that transmitting medium is abandoned gas (because of the liquid Incoercibility, conduction velocity is very fast simultaneously), adopts the pressure-measuring pipe of medical high polymer plastic pipe as this product.This pressure-measuring pipe tube wall is hard, and inner-walls of duct is smooth, and caliber is suitable, and body is pliable and tough, can prevent effectively because of the influence to the pressure measurement value of damping and resonance effect.Because the transmitting medium of pressure adopts liquid; Be open loop pressure transfer mode simultaneously; Rate request to liquid flow is constant, needs the pressure source of a steady pressure for this reason, comes pressure source pressure is realized monitoring in real time through software control system and automatic feedback technique; The pressure stability that makes pressure source in the allowable error scope of setting value, thereby do not influence the accuracy of detection.For guaranteeing the pressure measurement data precision, realize the sluggish undistorted conduction of nothing of pressure signal, low noise, high input impedance operational amplifier modular design are become bridge amplifier, further combine voltage-controlled active filter, to pressure signal amplify, Filtering Processing.Make its common mode rejection ratio (CMRR) greater than 70dB, amplification adopts digital regulation resistance simultaneously greater than 10000, makes electronic circuit and structure simpler and more direct, regulate more convenient, circuit diagram, as shown in Figure 2.Fig. 3 is a difference bridge amplifier circuit diagram; Low noise, high input impedance operational amplifier modular design are become the difference bridge amplifier; Further combine voltage-controlled active filter, to pressure signal amplify, Filtering Processing, guarantee that pressure signal does not have sluggishness, undistorted conduction.
More than show and described ultimate principle and the principal character and the advantage of the present invention of this utility model.The technical staff of the industry should understand; This utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the description that this utility model just is described; Under the prerequisite that does not break away from this utility model spirit and scope, this utility model also has various changes and modifications, and these variations and improvement all fall in the scope of the invention that requires protection.This utility model requires protection domain to be defined by appending claims and equivalent thereof.
Claims (2)
1. an esophagus, gastrointestinal pressure detection system; It is characterized in that: detection system comprises pressure source, pressure-measuring pipe, pick off, amplifier, wave filter, A/D converter; Described pressure source is connected with pressure-measuring pipe; Pressure-measuring pipe links to each other with pick off, and pick off is connected with amplifier, and amplifier links to each other with computer through wave filter, A/D converter;
Adopting liquid in described esophagus, gastrointestinal pressure detection system is the pressure transmitting medium, adopts the pressure-measuring pipe of medical high polymer plastic pipe as system;
Described esophagus, gastrointestinal pressure detection system come pressure source pressure is realized monitoring in real time through software control system and automatic feedback technique.
2. esophagus according to claim 1, gastrointestinal pressure detection system is characterized in that:
Described esophagus, gastrointestinal pressure detection system adopt high sensitivity, the pressure transducer of high accuracy and high stability;
Described esophagus, gastrointestinal pressure detection system become bridge amplifier with low noise, high input impedance operational amplifier modular design, further combine voltage-controlled active filter, to pressure signal amplify, Filtering Processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201599411U CN202113066U (en) | 2011-05-18 | 2011-05-18 | Esophagus and digestive tract pressure detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201599411U CN202113066U (en) | 2011-05-18 | 2011-05-18 | Esophagus and digestive tract pressure detecting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202113066U true CN202113066U (en) | 2012-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201599411U Expired - Fee Related CN202113066U (en) | 2011-05-18 | 2011-05-18 | Esophagus and digestive tract pressure detecting system |
Country Status (1)
| Country | Link |
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| CN (1) | CN202113066U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104116506A (en) * | 2014-07-09 | 2014-10-29 | 周国华 | Ileocecal valve function test and endoscopic pressure measuring system |
| CN105997012A (en) * | 2016-07-18 | 2016-10-12 | 合肥凯利光电科技有限公司 | Examination method for pressure detection part of digestive tract motion examination instrument |
| CN106175744A (en) * | 2016-07-18 | 2016-12-07 | 合肥凯利光电科技有限公司 | The industrial detection method of interference free performance under digestive tract power detector vibrational state |
| CN106175745A (en) * | 2016-07-18 | 2016-12-07 | 合肥凯利光电科技有限公司 | The industrial detection method of interference free performance in the warm and humid environment of digestive tract power detector |
| CN106236069A (en) * | 2016-07-18 | 2016-12-21 | 合肥凯利光电科技有限公司 | The industrial detection method of job stability under digestive tract power detector vibrational state |
| CN106264450A (en) * | 2016-07-18 | 2017-01-04 | 合肥凯利光电科技有限公司 | The industrial detection method of job stability in digestive tract power detector low temperature environment |
-
2011
- 2011-05-18 CN CN2011201599411U patent/CN202113066U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104116506A (en) * | 2014-07-09 | 2014-10-29 | 周国华 | Ileocecal valve function test and endoscopic pressure measuring system |
| CN105997012A (en) * | 2016-07-18 | 2016-10-12 | 合肥凯利光电科技有限公司 | Examination method for pressure detection part of digestive tract motion examination instrument |
| CN106175744A (en) * | 2016-07-18 | 2016-12-07 | 合肥凯利光电科技有限公司 | The industrial detection method of interference free performance under digestive tract power detector vibrational state |
| CN106175745A (en) * | 2016-07-18 | 2016-12-07 | 合肥凯利光电科技有限公司 | The industrial detection method of interference free performance in the warm and humid environment of digestive tract power detector |
| CN106236069A (en) * | 2016-07-18 | 2016-12-21 | 合肥凯利光电科技有限公司 | The industrial detection method of job stability under digestive tract power detector vibrational state |
| CN106264450A (en) * | 2016-07-18 | 2017-01-04 | 合肥凯利光电科技有限公司 | The industrial detection method of job stability in digestive tract power detector low temperature environment |
| CN105997012B (en) * | 2016-07-18 | 2018-10-23 | 合肥凯利光电科技有限公司 | The detection method of the pressure detecting part of digestive tract power detector |
| CN106264450B (en) * | 2016-07-18 | 2019-04-02 | 合肥凯利光电科技有限公司 | The industrial detection method of job stability in digestive tract power detector low temperature environment |
| CN106236069B (en) * | 2016-07-18 | 2019-04-02 | 合肥凯利光电科技有限公司 | The industrial detection method of job stability under digestive tract power detector vibrational state |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120118 Termination date: 20130518 |