CN205924652U - Initiative decompression formula is prevented mistake and is inhaled stomach tube based on esophagus impedance PH monitoring - Google Patents
Initiative decompression formula is prevented mistake and is inhaled stomach tube based on esophagus impedance PH monitoring Download PDFInfo
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- CN205924652U CN205924652U CN201620378880.0U CN201620378880U CN205924652U CN 205924652 U CN205924652 U CN 205924652U CN 201620378880 U CN201620378880 U CN 201620378880U CN 205924652 U CN205924652 U CN 205924652U
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Abstract
The utility model discloses an initiative decompression formula is prevented mistake and is inhaled stomach tube based on esophagus impedance PH monitoring, including annotating esophagus, negative pressure pipe, attracting hole, the fast plug of negative pressure, negative pressure air pump, controller, signal line, pH value sensor, impedance sensor, the negative pressure air pump passes through fast plug of negative pressure and negative pressure pipe intercommunication, the pH value sensor is located the negative pressure tube -surface to apart from larynx end 30cm department, the impedance sensor is located the negative pressure tube -surface, respectively apart from larynx end 5cm, 30cm, controller passing signal line is connected with pH value sensor and impedance sensor. The utility model discloses the stomach tube utilizes pH value sensor and impedance sensor to the real time monitoring of esophagus internal environment, and the accurate obtains the opportunity that the stomach backflowed and takes place, through gastric content in the esophagus suction of in time taking the initiative of will backflowing of negative pressure air pump, has avoided gastric content to backflow the back and has missed the possibility that sucks the trachea and result in the aspiration pneumonia, simultaneously the utility model discloses a control strategy pass through the two methods that detect of pH value and impedance, realized the detection that multiple gastric content backflowed effectively, the testing result can realize opening and close of real time control negative pressure air pump through the controller, carries out palirrhea thing and attracts, effectively prevents the aspiration pneumonia to take place.
Description
Technical field
The present invention relates to medical instruments field, especially a kind of active decompression formula based on esophaguses impedance-PH monitoring is anti-error
Inhale stomach tube.
Background technology
Clinically many serious symptom Cerebral Injury patients can not independently be taken food due to the disturbance of consciousness long period, frequently with nose stomach
Intubation nasal feeding keeps the nutriture of patient.
During indwelling common Medical gastric canal nasal feeding, close because of cardia and be affected, and disturbance of consciousness patient often can not independently gulp down
Pharynx is inhaled it is easy to occur backflowing by mistake, causes aspiration pneumonitiss., the incidence rate of aspiration pneumonitiss is in Acute Stroke taking apoplexy as a example
5-22% is accounted for, aspiration pneumonitiss refer to gastric content from backwards flowing and enter tracheal strips, cause pulmonary infection in patient.Have confirmed, backflow by mistake
Suction can lead to conditions of patients deterioration, extended hospital stay, prognosis malas even dead.
Studies have reported that, row stomach tube insertion art when, by adjust stomach tube intubating length, change insertion stomach tube diameter,
Patients head position when changing nasal feeding feeding, reduce and repeatedly the measure such as nasal feeding feeding being reduced to occur stomach to backflow to obtain probability,
But in actual care operation, suction phenomenon prevents not yet completely by mistake.
Recently, domestic have technology company or scholar by changing the generation that stomach ciphon structure prevents from backflowing.2012 Nian Cai states
One kind anti-error suction stomach tube of cutting edge of a knife or a sword application（2012200007540.9）By preventing stomach from backflowing by way of cincture air bag around stomach tube
Cause to inhale by mistake.This invention, by way of to air bag gas injection, forms a kind of blocking type air bag in esophagus, prevents stomach from backflowing.Though
Certain anti-error suction so can be played, but air bag gas injection rate can not control well, simultaneously because air bag is present in esophagus,
The air bag expanding prevent stomach from backflowing will necessarily stimulate esophagus simultaneously, and there is air bag gas injection excessive pressed forwards trachea can
Energy；Assurance additionally for gas injection occasion is not accurate, often have occurred and that stomach backflow phenomenon just can gas injection, for backflowing
Prevention there is hysteresis quality.
Joint Zhanjiang, Guangdong Province Shi Da Industrial Co., Ltd. of People's Hospital, Luohu District, Shenzhen developed in March, 2007
Dual chamber air bag stomach tube.Eliminate oesophageal pouchess, remain gastric pouch and side opening, be manufactured into bicavate air-sac stomach tube, to air bag before nasal feeding
Inlet charge 80-100ml, and outside for stomach tube tractive is fixing after resistance to having, then start to nasal feeding, note eats 10-30 minute,
After 60 minutes, air bag is exitted completely.Which can preferably prevent from taking food after the backflowing of stomach content in the short time, but, use
This type stomach tube can not effectively prevent stomach storage to stay patient's stomach content to backflow, and pars oralis pharyngises secretion in the inflationtime of 60min after feed
Thing flows into gastric and is obstructed, and increased the risk that oropharyngeal secretions are inhaled by mistake on the contrary.
In sum, in the existing methods and techniques preventing from by mistake inhaling, generally being had by modes such as air bag gas injections can not
Effectively prediction stomach backflow the time, be unable to precise control gas injection rate, air bag repeatedly or the shortcomings of long-time gas injection stimulates esophagus.
Content of the invention
In order to solve the above problems, the purpose of the present invention is：There is provided one kind can detect that stomach backflows generations, and energy is active
Prevent the stomach tube by mistake inhaled.
Esophageal pH monitoring is considered as the important supplementary meanss of detection gastric content from backwards flowing within the quite a long time.
The general standards that ph backflows as presence less than 4.But Recent study finds, acidity is backflowed and is only accounted for the part backflowed, meal
Faintly acid afterwards is backflowed and clinically patient with severe symptoms's antisecretory is nonacid when using is patient situations such as backflow, particularly heavy
The important component part that disease patient is backflowed.
There is the defect that can only detect acid reflux, can not identify non-acid reflux in traditional esophageal pH monitoring, therefore clinically
Need the method that sensitivity and the higher detection of specificity are backflowed.Motional impedance detection proposed first in 1991, led within 2002
Cross FDA approval to use.Impedance probe determines reflux physical property matter using Electron Ring by the resistance value monitoring reflux thing.In esophaguses
Intracavity, gas, esophageal wall, drinking water, saliva, bile, the impedance of chyme reduce successively.
Therefore by resistance technique joint ph technology, it is monitored in distal esophagus, has and can monitor acid reflux and non-simultaneously
The advantage of sour gastroesophageal reflux, once ph is detected or impedance reaches value when backflowing, that is, starts negative pressure air pump, by esophagus
The thing that backflows suctions out in time, and is suctioned out gastric content by stomach tube a certain amount of, reaches the function of active anti-error suction.
The technical solution adopted in the present invention is：A kind of active decompression formula anti-error suction stomach based on esophaguses impedance-PH monitoring
Pipe, its structure includes noting esophaguses, negative tube, suction hole, the fast plug of negative pressure, negative pressure air pump, controller, holding wire, pH value sensing
Device, impedance transducer, described negative pressure air pump is connected with negative tube by the fast plug of negative pressure, and described pH value sensor is located at negative tube
Surface, and at the 30cm of larynx end, described impedance transducer is located at negative pressure pipe surface, respectively away from larynx end 5cm, 30cm, described control
Device is connected with pH value sensor and impedance transducer by holding wire.
Further, described note esophaguses, negative tube are semicircle, and it is circle that stomach tube is integrally formed.
Further, described negative tube upper end is the fast plug of negative pressure, for connecting with negative pressure air pump.
Further, there are multiple suction holes at described negative tube lower end and tube wall.
Further, described stomach pipe outer wall has holding wire, and holding wire is surrounded by protective layer.
Further, described holding wire lower end is connected with pH value sensor, impedance transducer, and upper end is connected with controller.
Further, have pH value comparison circuit and impedance comparison circuit in described controller, pH value comparison circuit input with
PH value sensor is connected, and impedance comparison circuit input end is connected with impedance transducer, pH value comparison circuit and impedance comparison circuit
Outfan be provided with logic circuit, controller detects pH value comparison circuit has output signal or impedance comparison circuit to have output
During signal, that is, send control signal, control negative pressure air pump to open；Controller detects pH value comparison circuit non-output signal and resistance
During anti-comparison circuit non-output signal, that is, send control signal, control negative pressure air pump to close.
Further, described stomach tube is made up of medical polyester soft material.
The invention has the beneficial effects as follows：Stomach tube of the present invention utilizes pH value sensor and impedance transducer to environment in esophagus
Monitor in real time, accurately obtains stomach and backflows opportunity of generation, will be timely for the gastric content backflowing in esophagus by negative pressure air pump
Actively suction out, it is to avoid reflux thing sucks trachea by mistake, prevents the appearance of aspiration pneumonitiss；The control strategy that the present invention adopts simultaneously
By the method for pH value and the double detection of impedance, have effectively achieved the detection of multiple things that backflow, controller can real-time control simultaneously
The keying of negative pressure air pump, can effectively prevent the thing entrance air flue that backflows, and ensure less to the stimulation of esophageal mucosa membrane injury during attraction.
Brief description
Fig. 1 is present configuration block diagram.
The structural representation of Fig. 2 position stomach of the present invention tube portion.
The cross-sectional view of Fig. 3 position stomach tube of the present invention.
In figure：1st, the fast plug of negative pressure；2 note esophaguses,；3rd, negative tube；4th, holding wire；5th, suction hole；6th, impedance transducer；7、
PH value sensor.
Specific embodiment
Below in conjunction with the accompanying drawings the specific embodiment of the present invention is described further：
Reference picture 1- Fig. 3, a kind of active decompression formula anti-error suction stomach tube based on esophaguses impedance-PH monitoring, its structure includes
Note esophaguses 2, negative tube 3, suction hole 5, the fast plug of negative pressure 1, negative pressure air pump, controller, holding wire 4, pH value sensor 7, impedance
Sensor 6, described negative pressure air pump is connected with negative tube 3 by the fast plug of negative pressure 1, and described pH value sensor 7 is located at negative tube 3 table
Face, and at the 30cm of larynx end, described impedance transducer 6 is located at negative tube 3 surface, respectively away from larynx end 5cm, 30cm, described control
Device is connected with pH value sensor 7 and impedance transducer 6 by holding wire 4.
In above-described embodiment, described note esophaguses 2, negative tube 3 are semicircle, and it is circle that stomach tube is integrally formed.
In above-described embodiment, described negative tube 3 upper end is the fast plug of negative pressure 1, for connecting with negative pressure air pump.
In above-described embodiment, described negative tube 3 lower end, and at tube wall, have multiple suction holes 5.
In above-described embodiment, described stomach pipe outer wall has holding wire 4, the outer matcoveredn of holding wire 4.
In above-described embodiment, described holding wire 4 lower end is connected with pH value sensor 7, impedance transducer 6, upper end and control
Device is connected.
In above-described embodiment, in described controller, there are pH value comparison circuit and impedance comparison circuit, pH value comparison circuit is defeated
Enter end to be connected with pH value sensor, impedance comparison circuit input end is connected with impedance transducer, pH value comparison circuit and impedance ratio
The outfan of circuit is provided with logic circuit, controller detects pH value comparison circuit output signal or impedance comparison circuit
When having output signal, that is, send control signal, control negative pressure air pump to open；Controller detects pH value comparison circuit and no exports letter
Number and during impedance comparison circuit non-output signal, that is, send control signal, control negative pressure air pump to close.
In above-described embodiment, described stomach tube is made up of medical polyester soft material.
Work process：
First, art will be inserted to patient's row stomach tube, the negative tube 3 of stomach tube outer end passes through the fast plug of negative pressure 1 and negative pressure air pump
It is connected, holding wire 4 is connected with controller, controller energising runs.During patient's nasal feeding, inject nutrition by noting esophaguses 2 to gastric
Liquid or water, when patient occurs stomach to backflow, when pH value sensor 7 or impedance transducer 6 detect signal, controller sends control
Signal, negative pressure air pump starts, and is suctioned out the thing that backflows in esophagus by the suction hole 5 on negative tube 3, when the thing that backflows in esophagus is complete
When entirely attracting clean, when that is, pH value sensor 7 or impedance transducer 6 can't detect signal, controller sends signal, controls negative pressure
Air pump cuts out.
Above only describes ultimate principle and the preferred implementation of the present invention, those skilled in the art are according to above-mentioned enforcement
Any changes and improvements that example is made, should be included within the protection domain of technical solution of the present invention.
Claims (8)
1. a kind of based on esophaguses impedance-PH monitoring active decompression formula anti-error inhale stomach tube it is characterised in that：Structure includes noting esophaguses
(2), negative tube (3), suction hole (5), the fast plug of negative pressure (1), negative pressure air pump, controller, holding wire (4), pH value sensor
(7), impedance transducer (6), described negative pressure air pump is connected with negative tube (3) by the fast plug of negative pressure (1), described pH value sensor
(7) be located at negative tube (3) surface, and away from the 30cm of larynx end at, described impedance transducer (6) positioned at negative tube (3) surface, respectively away from
Larynx end 5cm, 30cm, described controller is connected with pH value sensor (7) and impedance transducer (6) by holding wire (4).
2. a kind of active decompression formula anti-error suction stomach tube based on esophaguses impedance-PH monitoring according to claim 1, its feature
Be note esophaguses (2), negative tube (3) be semicircle, be integrally formed stomach tube be circle.
3. a kind of active decompression formula anti-error suction stomach tube based on esophaguses impedance-PH monitoring according to claim 1, its feature
Be negative tube (3) upper end be the fast plug of negative pressure (1), for connecting with negative pressure air pump.
4. a kind of active decompression formula anti-error suction stomach tube based on esophaguses impedance-PH monitoring according to claim 1, its feature
It is at negative tube (3) lower end, and tube wall, to have multiple suction holes (5).
5. a kind of active decompression formula anti-error suction stomach tube based on esophaguses impedance-PH monitoring according to claim 1, its feature
It is that stomach pipe outer wall has holding wire (4), the outer matcoveredn of holding wire (4).
6. a kind of active decompression formula anti-error suction stomach tube based on esophaguses impedance-PH monitoring according to claim 1, its feature
It is that holding wire (4) lower end is connected with pH value sensor (7), impedance transducer (6), upper end is connected with controller.
7. a kind of active decompression formula anti-error suction stomach tube based on esophaguses impedance-PH monitoring according to claim 1, its feature
It is in controller, to have pH value comparison circuit and impedance comparison circuit, pH value comparison circuit input is connected with pH value sensor, resistance
Anti- comparison circuit input is connected with impedance transducer, and the outfan of pH value comparison circuit and impedance comparison circuit is provided with logic
Circuit, when controller detects pH value comparison circuit and has output signal or impedance comparison circuit to have output signal, that is, sends control
Signal, controls negative pressure air pump to open；Controller detects pH value comparison circuit non-output signal and impedance comparison circuit no exports
During signal, that is, send control signal, control negative pressure air pump to close.
8. a kind of active decompression formula anti-error suction stomach tube based on esophaguses impedance-PH monitoring according to claim 1, its feature
It is made of stomach tube by medical polyester soft material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620378880.0U CN205924652U (en) | 2016-04-30 | 2016-04-30 | Initiative decompression formula is prevented mistake and is inhaled stomach tube based on esophagus impedance PH monitoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620378880.0U CN205924652U (en) | 2016-04-30 | 2016-04-30 | Initiative decompression formula is prevented mistake and is inhaled stomach tube based on esophagus impedance PH monitoring |
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| CN205924652U true CN205924652U (en) | 2017-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620378880.0U Expired - Fee Related CN205924652U (en) | 2016-04-30 | 2016-04-30 | Initiative decompression formula is prevented mistake and is inhaled stomach tube based on esophagus impedance PH monitoring |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106726615A (en) * | 2017-02-09 | 2017-05-31 | 西南医科大学附属医院 | A kind of stomach tube and Nasal feeding device |
| CN107970517A (en) * | 2017-12-06 | 2018-05-01 | 北京大学第医院 | A kind of anti-error absorbing method and stomach tube |
| CN112336629A (en) * | 2020-09-29 | 2021-02-09 | 周蒙滔 | Anti-aspiration stomach tube |
-
2016
- 2016-04-30 CN CN201620378880.0U patent/CN205924652U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106726615A (en) * | 2017-02-09 | 2017-05-31 | 西南医科大学附属医院 | A kind of stomach tube and Nasal feeding device |
| CN107970517A (en) * | 2017-12-06 | 2018-05-01 | 北京大学第医院 | A kind of anti-error absorbing method and stomach tube |
| CN112336629A (en) * | 2020-09-29 | 2021-02-09 | 周蒙滔 | Anti-aspiration stomach tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170208 Termination date: 20180430 |
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| CF01 | Termination of patent right due to non-payment of annual fee |