CN1027130C - Detecting instrument for alimentary canal - Google Patents
Detecting instrument for alimentary canal Download PDFInfo
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- CN1027130C CN1027130C CN 90101262 CN90101262A CN1027130C CN 1027130 C CN1027130 C CN 1027130C CN 90101262 CN90101262 CN 90101262 CN 90101262 A CN90101262 A CN 90101262A CN 1027130 C CN1027130 C CN 1027130C
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- pressure
- alimentary canal
- detecting instrument
- instrument
- gas cell
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Abstract
The present invention relates to an instrument for detecting the alimentary canal, which is designed according to the air-guide pressure-transmission characteristics of a microcapsule. The instrument is composed of a pressure sensing capsule, an air inflation capsule, a multi-cavity guide tube, a pressure sensor, an amplifier, a displaying and recording device, etc. and has advantages of high accuracy and convenient operation and use.
Description
The present invention relates to a kind of detecting instrument for alimentary canal, belong to medical science test instrunment class.
In prior art, a kind of pair of ball nose gallbladder occlusion catheter described in the United States Patent (USP) 4781677, as shown in Figure 1, it comprises two inflatable balloon 18a and 18b, and they can place the far-end of conduit, conduit includes several inflation, venting that are used for balloon and links up gallbladder, the chamber of drain gallbladder, filling and draw solution on treatment position.This invention is mainly used in the treatment cholelithiasis, also can be used to measure pressure of biliary tract.The diameter of the aerating ballon that this invention is mentioned is at least more than 25 millimeters, air bag is bigger, as detect gastral pressure with this, measured data are difficult to represent the local data on certain a bit, may be the combined effect of multi-section position and the result that produces, and the air bag volume is big, it is very difficult to increase helical pitch, also will cause as food lumps digestive system simultaneously stimulates, thereby produces some illusion, makes the data that record insincere.In addition, the only detailed all processes of describing the treatment cholelithiasis of this patent documentation, for the binding and the hermetically-sealed construction of balloon and conduit, when utilizing this conduit gaging pressure, how in balloon, to charge into an amount of gas and make it sealing and all do not provide effective solution.April nineteen eighty-two, in " bio information processing academic conference " paper that China Association of Automation and Biophysics Society of China hold, unite " the pressure wave information of stomach motion " literary composition of delivering with Huazhong Institute of Technology and Wuhan medical college and disclose a kind of stomach cardon instrument, as shown in Figure 2, this instrument has been introduced intracavity pick off 20, the weak point of this instrument is that the microsensor processing technology is very complicated, the cost height, guiding-tube bend also has the added influence of lateral stress to measuring, and tends to occur some significantly spurious signals.Microsensor fragile structure in addition is easy to damage, if when entering in the esophagus pressure measurement, centrifugal dirty nearer, faint electric leakage will cause serious consequence.
In order to overcome the deficiency that exists in the prior art, it is little to the purpose of this invention is to provide a kind of air bag volume, measures highly sensitive, the system reliability height, speed is fast, and cost is low, life-span is long, does not exist leakage current to the accident potential of body injury and detecting instrument for alimentary canal easy to use.
Purpose of the present invention can realize by following measure: by an airtight pressure acquisition system variation of gastrointestinal pressure is delivered in the pick off and goes, this pressure acquisition system generally comprises the pressure-sensitive capsule, multi-cavity catheter, pressure transducer etc.The output signal of pressure transducer is sent in the recording equipment after amplifying circuit amplifies and is gone.Two groups of characteristic curves that record according to " microcapsule conductance pressure transmission characteristic ", see Fig. 3, between the zero-bit output of fill volume and system, between fill volume and the system's full scale output one section level and smooth curve is arranged all, we fill out capsule (abbreviation gas cell) with the minimum gas gas of at least one constant volume at design, by the corresponding cavity in the multi-cavity catheter and at least one pressure-sensitive capsule and pressure transducer communication and sealing.This gas cell makes whole system keep good linearty and stable zero-bit output.This detecting instrument for alimentary canal is by pressure-sensitive capsule, gas cell, multi-cavity catheter, pressure transducer, and signal amplification circuit shows and recording equipment, adapter, analog-digital converter, single-chip microcomputer etc. are partly formed.
The present invention compared with prior art has following advantage:
1. the use of the minimum gas filling capsule of constant volume makes whole system keep good linearty and stable zero-bit output, and the transmission response of system is enough for the variation of gastrointestinal pressure, and also brings great convenience to operation.
2. there is not the danger of electric leakage.
3. cost of manufacture is low, long service life, and pick off is not fragile.
4. applied widely, this instrument not only can be used to measure simultaneously the pressure variation of multiple spot gastrointestinal motor function, as stomach, cardia, esophagus, can also record the rhythm and pace of moving things of digestive tract function, the interval of contraction, compensatory time, contractile motion pacemaker, spread speed, systolic pressure peak value and breathing, swallow, variable signal that cough etc. causes, can record the contraction change of complete stomach cardon, esophagus wriggling and cardia.
5. easy to use, this instrument can be from the oral cavity, nasal cavity, anus insert digestive tract and measurement, demonstration, date processing record and print and can once finish.
Below in conjunction with accompanying drawing the present invention is done to describe further:
Fig. 1 is two ball nose gallbladder occlusion catheter sketch maps of describing in the United States Patent (USP) 4781677.
Fig. 2 is a disclosed stomach children figure instrument principle schematic in " the pressure wave information of stomach motion " literary composition.
The two group characteristic curves of Fig. 3 for recording according to " microcapsule conductance pressure transmission characteristic ".
Fig. 4 is the detecting instrument for alimentary canal theory diagram.
The structural representation of Fig. 5 for communicating with each other between pressure-sensitive capsule, gas cell and the pressure transducer in the detecting instrument for alimentary canal.
Fig. 6 is a upper digestive tract motor function instrumentation plan.
Fig. 7 is a lower digestive tract motor function instrumentation plan.
Fig. 1, Fig. 2, Fig. 3 front are mentioned, and no longer go to live in the household of one's in-laws on getting married into here.As shown in Figure 4, detecting instrument for alimentary canal can be made up of pressure-sensitive capsule 1, multi-cavity catheter 2, gas cell 3, pressure transducer 4, amplifier 5, panel table indication 6, adapter 7, analog-digital converter 8, single-chip microcomputer 9 drawing print record instrument 10, subtractor 11 and multiple power supplies 12 etc.Wherein amplifier 5 can be selected the precision instrument amplifier for use, and as the AD624 device, single-chip microcomputer 9 can adopt 8031 devices, and drawing print record instrument 10 can be selected the CE-515P of Sharp drawing printer for use.As shown in Figure 5, the gas cell 3 of at least one constant volume is communicated with each other by the corresponding cavity in the multi-cavity catheter 2 and at least one pressure-sensitive capsule 1 and pressure transducer 4 and is sealed, be that each pressure-sensitive capsule is communicated with a pressure transducer by the inner chamber in the multi-cavity catheter, gas cell 3 can be communicated with pressure transducer 4 and fix on it, and also available three-way interface is interconnected multi-cavity catheter 2, gas cell 3, pressure transducer 4.Pressure-sensitive capsule 1 can be wound with silkworm silk and smear one deck silica gel with the junction of multi-cavity catheter 2, makes its sealing.Pressure-sensitive capsule 1 can adopt medical polyester material to make, and also can adopt silicone rubber to make.The volume of pressure-sensitive capsule 1 is volumetrical 1-4 a times of gas cell 3, and for example, the maximum volume that we design gas cell is 1.2 milliliters, and total loading of gas is 0.5 milliliter, and pressure transducer 4 can be selected the wire type transducer that rises for use.We are the whole testing process that example illustrates this instrument with the force value measured simultaneously as three positions such as stomach, esophagus, cardia now:
The first step: energized, and preheating, system zeroing position;
Second step: the three cavities conduit pipe 2 that will be connected with three gas cell 3a, 3b, 3c is pulled up, and at this moment three pressure-sensitive capsule 1a, 1b, 1c of three cavities conduit pipe 2 other ends communicate with atmosphere, discharges the residual air (gas in the capsule is gently extruded in available have gentle hands) in the pressure-sensitive capsule 1;
The 3rd step: with three gas cell 3a, 3b, 3c again with 2 corresponding joining of three cavities conduit pipe, at this moment existing air (being naturalness) in gas cell 3a, 3b, the 3c;
The 4th step: three cavities conduit pipe 2 is slowly inserted in the body from nasal cavity, oral cavity or anus, and put to institute's location;
The 5th step: the gas among three gas cell 3a, 3b, the 3c is all clamp-oned pick off-conduit pressure-sensitive bag system, and clamp the outlet of gas cell respectively with mosquito forceps.
The 6th step: start instrument, this moment amplifier 5, panel dial gauge 6, adapter 7, analog-digital converter 8, single-chip microcomputer 9, drawing print record instrument 10, subtractor 11 etc. are started working successively, can obtain measurement result.
If one-shot measurement was above 25 minutes, can repeated inflation, promptly earlier mosquito forceps is unclamped, allow gas among pressure-sensitive capsule 1a, 1b, the 1c turn back to 3a in the gas cell, 3b, 3c reuse mosquito forceps clamps three cavities conduit pipe 2, pull up gas cell, allow it be full of air (getting final product), repeat the 5th, the 6th step then by himself tension force.
This instrument also possesses has five pressure simulation amount output plugholes to send into other monitor or handle with computer interconnection for user.
For satisfying the needs of lower digestive tract functional test, as shown in Figure 7, the capsule volume is 150 milliliters-200 milliliters a huge pressure-sensitive capsule in the middle of also can designing one, in order to simulation stool in rectum during accumulation to sphincteral stimulation, clinical doctor can use syringe filling gas in this pressure-sensitive capsule, and front and back two capsules can be used for the pressure measxurement of colon and anal canal.This instrument adnexa can be furnished with single, double and 3 pressure catheters of upper digestive tract, single, double 3 pressure catheters of lower digestive tract and can supply the gaging microguide of gastroscope movable detecting hole.
Claims (6)
1, a kind of detecting instrument for alimentary canal, be to be connected through amplifier circuit (5) back by an airtight pressure acquisition system to show that recording equipment constitutes, and is characterized in that: to be that the pressure transducer (4) by one group of subsidiary gas cell (3) is corresponding be communicated with one group of pressure-sensitive capsule (1) and seal formation by multi-cavity catheter (2) described pressure acquisition system.
2, detecting instrument for alimentary canal according to claim 1 is characterized in that at amplifier circuit (5) and shows the data handling system that is linked in sequence and is constituted by adapter (7), analog converter (8), single-chip microcomputer (9) is installed between the recording equipment.
3, detecting instrument for alimentary canal according to claim 1, the volume that it is characterized in that pressure-sensitive capsule (1) are the volumetrical 1-4 of gas cell (3) times, and the maximum volume of gas cell (3) is 1.2 milliliters.
4, detecting instrument for alimentary canal according to claim 1 is characterized in that the junction of pressure-sensitive capsule (1) and multi-cavity catheter (2) is wound with silkworm silk, and smears one deck silica gel and make the two sealing.
5,, it is characterized in that the outfan of amplifier circuit (5) also can connect one group of subtractor (11) according to claim 1 or 3 described detecting instrument for alimentary canal.
6, detecting instrument for alimentary canal according to claim 1 is characterized in that showing that recording equipment can be made of panel table indication (6) and drawing print record instrument (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90101262 CN1027130C (en) | 1990-03-13 | 1990-03-13 | Detecting instrument for alimentary canal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90101262 CN1027130C (en) | 1990-03-13 | 1990-03-13 | Detecting instrument for alimentary canal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1054712A CN1054712A (en) | 1991-09-25 |
| CN1027130C true CN1027130C (en) | 1994-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90101262 Expired - Fee Related CN1027130C (en) | 1990-03-13 | 1990-03-13 | Detecting instrument for alimentary canal |
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| Country | Link |
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| CN (1) | CN1027130C (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100495278C (en) * | 2006-06-09 | 2009-06-03 | 四川大学华西医院 | Automatic regulating and control instrument in conduit pipe sacculus |
| CN102293635A (en) * | 2011-05-19 | 2011-12-28 | 合肥凯利光电科技有限公司 | Digestive tract motility detecting system |
| CN102366325B (en) * | 2011-10-21 | 2014-05-21 | 南昌大学第一附属医院 | Dysphagia pressure measurement and treatment instrument |
| CN102670216A (en) * | 2012-05-04 | 2012-09-19 | 江苏苏云医疗器材有限公司 | Swallowing determining and evaluating system |
| CN104116506A (en) * | 2014-07-09 | 2014-10-29 | 周国华 | Ileocecal valve function test and endoscopic pressure measuring system |
| CN104188672B (en) * | 2014-07-28 | 2016-04-13 | 重庆金山科技（集团）有限公司 | The manufacture method of esophageal pressure measuring guide |
| CN104224271B (en) * | 2014-09-11 | 2018-11-23 | 中国人民解放军第三军医大学第二附属医院 | Branchofiberoscope biopsy hemostatic ball cuff pipe |
| CN105411527B (en) * | 2015-12-11 | 2018-05-18 | 丁文京 | Circulating pressure constipation diagnosis and therapeutic device |
| 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 |
| 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 |
| CN106943137B (en) * | 2017-05-02 | 2023-09-15 | 温州市中心医院 | Intelligent biliary tract pressure measuring device |
| CN109077743A (en) * | 2018-06-28 | 2018-12-25 | 西藏农牧学院 | Physiological tonicity measurement device in a kind of domestic animal stomach |
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1990
- 1990-03-13 CN CN 90101262 patent/CN1027130C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1054712A (en) | 1991-09-25 |
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