CN109846715A - A kind of intelligence stomach tube - Google Patents
A kind of intelligence stomach tube Download PDFInfo
- Publication number
- CN109846715A CN109846715A CN201910088167.0A CN201910088167A CN109846715A CN 109846715 A CN109846715 A CN 109846715A CN 201910088167 A CN201910088167 A CN 201910088167A CN 109846715 A CN109846715 A CN 109846715A
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- China
- Prior art keywords
- stomach tube
- pipe
- tube
- wall
- stomach
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 210000002784 stomach Anatomy 0.000 title claims abstract description 119
- 238000011010 flushing procedure Methods 0.000 claims abstract description 30
- 239000000523 sample Substances 0.000 claims abstract description 9
- 238000002347 injection Methods 0.000 claims abstract description 6
- 239000007924 injection Substances 0.000 claims abstract description 6
- 238000003825 pressing Methods 0.000 claims description 8
- 239000004020 conductor Substances 0.000 claims description 6
- 210000002850 nasal mucosa Anatomy 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 238000002955 isolation Methods 0.000 claims description 3
- 210000003128 head Anatomy 0.000 claims description 2
- 238000004080 punching Methods 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 abstract description 8
- 230000002496 gastric effect Effects 0.000 abstract description 7
- 210000004051 gastric juice Anatomy 0.000 abstract description 7
- 238000003780 insertion Methods 0.000 abstract description 4
- 230000037431 insertion Effects 0.000 abstract description 4
- 230000000638 stimulation Effects 0.000 abstract description 4
- 238000004140 cleaning Methods 0.000 abstract description 3
- 210000003928 nasal cavity Anatomy 0.000 abstract 1
- 230000000007 visual effect Effects 0.000 description 6
- 239000000243 solution Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 238000002627 tracheal intubation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 210000001331 nose Anatomy 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Medical Preparation Storing Or Oral Administration Devices (AREA)
Abstract
The present invention relates to medical instruments fields, disclose a kind of intelligent stomach tube, it include: through the wire guide being set in stomach tube, CCD miniature image sensor is set at stomach tube front-end port, by being placed in wire guide in stomach tube, the hardness of stomach tube is improved, while by CCD miniature image sensor at front-end port, the insertion of monitoring guidance stomach tube under the conditions of can reach visually；Miniature pH value probe is arranged in pipe antetheca, can immediately, dynamic directly monitoring patient's gastric juice pH value, provide reliable basis for diagnosing and treating；Flow sensor is arranged in stomach tube tail end, the speed that can accurately measure the amount of stomach tube that enters and leaves, can also be used for control injection stomach tube content；Stomach tube is inside and outside to be provided with flushing pipe, rinses cleaning inside pipe wall, pipe outer wall when needed, can reduce the attachment on tube wall, it is ensured that and it is unobstructed in pipe, reduce stimulation of the gastric content to stomach wall；The fixed device of umbrella shape is arranged in stomach tube tail end, after the completion of setting pipe, stomach tube can be effectively prevent to fall off landing in being fixedly secured stomach tube in nasal cavity.
Description
Technical field
The present invention relates to the field of medical instrument technology more particularly to a kind of intelligent stomach tubes.
Background technique
The development history of existing more than 200 years of merging of stomach tube, indwelling gastric tube may be implemented the function such as to drain, infuse food, injection, make a definite diagnosis
Can, but current stomach tube is mostly a silica gel pipeline with side opening, and structure is simple, has a single function.It can not achieve visual indwelling, correct
It is fixed to assess tube end position, safety, no flusher collects the drawbacks such as related data without gastric juice monitoring device, without intelligent evaluation,
Have been unable to meet clinical demand.And it checked, diagnosed, controlled under real-time dynamic data and visibility status due to that can not directly acquire
It treats, is often diagnosed, treated or extracted stomach tube by rule of thumb, be inserted into gastroscope and diagnosed, treated, not only increase patient
Pain, also increase the workload of medical staff in practical operation, while also increasing inspection to medical staff and treatment is difficult
Degree.The lag of medical instrument, which has been seriously affected, returns society to patient's diagnosing and treating accurately and timely and quick recovery
Clinic needs.Therefore, to solve the above problems, inventing a kind of intelligent stomach tube is particularly important.
Summary of the invention
It is real the main purpose of the present invention is to provide a kind of intelligent stomach tube in view of the above-mentioned problems in the prior art
Facilitate fixation after visual when existing indwelling, merging, can intelligent evaluation gastric juice situation, and have flushing stomach tube device lumen is inside and outside.
To achieve the above object, technical solution provided by the invention are as follows: including stomach tube and through the metal being set in stomach tube
Seal wire, CCD miniature image sensor is equipped at the stomach tube front-end port, and the pipe antetheca of the stomach tube is equipped with the spy of miniature pH value
Head, the stomach tube tail end be equipped with flow sensor, the stomach tube tail end be extended with respectively with the CCD miniature image sensor,
The bundle conductor that miniature pH value probe and the flow sensor are connected, the bundle conductor are connect with data acquisition control center, institute
It states data acquisition control center and is connected with power supply and terminal device.It is visual to grasp by CCD miniature image sensor at front-end port
Make insertion stomach tube, and high-visible stomach tube reaches the accurate location in stomach, primary success is not required to repeated intubation, reduces patient's pain
It is bitter；Miniature pH value probe real-time dynamic monitoring gastric juice pH value, flow sensor accurately measure the amount for entering and leaving stomach tube, it can also be used to
The speed of control injection stomach tube content, provides reliable basis for diagnosing and treating.
Preferably, the data acquisition control center and the terminal device are wirelessly connected, and described be wirelessly connected is bluetooth
Or WIFI connection.
Preferably, the terminal device is smart phone, tablet computer or computer, and configuration is versatile and flexible, and monitoring is convenient.
Preferably, the flow sensor is stainless steel media isolation type pressure sensor, anti-corrosion acid-proof, service life
It is long, save the cost.
Preferably, it is also extended through in the stomach tube equipped with the first flushing pipe, in first flushing pipe top and middle part tube wall
Multiple rinse mouths are arranged in upper annular, and to rinse the inside pipe wall of the stomach tube, first flushing pipe lower end is equipped with and the CCD
The corresponding rinse mouth of miniature image sensor.First flushing pipe is flushable to be fallen to be attached to stomach tube inside pipe wall and CCD miniature image
Gastric content on sensor, to ensure unobstructed in pipe and not influence CCD miniature image working sensor.
Preferably, the pipe outer wall of the stomach tube is equipped with the second flushing pipe closed at one end, second flushing pipe closed end
It is come downwards to along the stomach tube pipe outer wall and locates to be fixed on the stomach after enclosing around stomach tube one from the 5-12CM of stomach tube front-end port
The pipe outer wall of pipe is equipped with the rinse mouth of multiple alignment stomach tube pipe outer walls in the circle segment.It is rinsed by setting second
Pipe can achieve the function of rinsing cleaning pipe outer wall, reduce the attachment on tube wall, reduce stimulation of the gastric content to stomach wall.
Preferably, the stomach tube tail end is equipped with control button, is used for equipped with the fixed device of umbrella shape, the fixed device of the umbrella shape
The fixed device of the umbrella shape is opened in control.
Preferably, there is at least four fixed patch when the fixed device of the umbrella shape is opened, be pasted in schneiderian membrane.Umbrella shape is solid
Determining device can be firmly secured to stomach tube on schneiderian membrane, and safety is both artistic and practical.
Preferably, the stomach tube tail end be equipped with can spiral connection positive lock pressing tube device, pass through spiral positive lock pressing tube
Device achievees the purpose that positive lock pressing tube.
Compared with prior art, the beneficial effect of technical solution of the present invention is:
1. visual operation is placed in stomach tube, and high-visible stomach tube reaches the accurate location in stomach, and primary success is not required to insert repeatedly
Pipe reduces patient's pain, and can clearly observe assessment people digest road situation during stomach tube merging, mentions for diagnosing and treating
For foundation；
2. combining visual observation, gastric juice monitoring and flow monitoring, intelligent stomach tube is easy to operate precisely, effectively reduces medical staff
Workload, improve inspection and therapeutic efficiency.
3. pipe is inside and outside can be rinsed, stomach tube is effectively prevent the gastric content pair of blocking or pipe outer wall attachment in pipe occur
The stimulation of stomach wall.
Using the fixation device of umbrella shape, stomach tube fixation is more firm, and is fixed on schneiderian membrane, compared to being pasted onto the bridge of the nose or face
It is safer on cheek, it is both artistic and practical.
Detailed description of the invention
Fig. 1: for intelligent stomach ciphon structure schematic diagram of the invention
Fig. 2: for intelligent stomach tube the second flushing pipe structural schematic diagram of the invention
Have in figure: stomach tube 1, wire guide 2, CCD miniature image sensor 3, miniature pH value probe 4, flow sensor 5, conducting wire
Beam 6, data acquisition control center 7, power supply 8, terminal device 9, the first flushing pipe 10, rinse mouth 11, nut cap 12, the second flushing pipe
13, control button 14, fixed patch 15, positive lock pressing tube device 16
Specific embodiment
The attached figures are only used for illustrative purposes and cannot be understood as limitating the patent.
In order to better illustrate this embodiment, the certain components of attached drawing have omission, zoom in or out, and do not represent actual product
Size.
To those skilled in the art, it is to be understood that certain known features and its explanation, which may be omitted, in attached drawing
's.
In the description of the present invention, it is to be understood that, term " first ", " second " are used for description purposes only, and cannot
It is interpreted as indication or suggestion relative importance or implies the quantity of indicated technical characteristic." first " that limits as a result, "
One or more of the features can be expressed or be implicitly included to two " feature.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " setting " " connects
Connect " it shall be understood in a broad sense, for example, it may be being fixedly connected, it may be a detachable connection, or be integrally connected；It can be machine
Tool connection, is also possible to be electrically connected；It can be directly connected, be also possible to be indirectly connected with by intermediary, it may be said that two
Connection inside element.For the ordinary skill in the art, above-mentioned term can be understood in the present invention with concrete condition
Concrete meaning.
The following further describes the technical solution of the present invention with reference to the accompanying drawings and examples.
As the embodiment of intelligent stomach tube of the present invention, as shown in Figure 1, comprising: stomach tube 1 and through being set in stomach tube 1
Wire guide 2, CCD miniature image sensor 3 is equipped at 1 front-end port of stomach tube, the pipe antetheca of the stomach tube 1 is equipped with micro-
Type pH value probe 4,1 tail end of stomach tube is equipped with flow sensor 5, and 1 tail end of stomach tube is extended with micro- with the CCD respectively
The bundle conductor 6 that type imaging sensor 3, miniature pH value probe 4 and the flow sensor 5 are connected, the bundle conductor 6 and data
Acquisition control center 7 connects, and the data acquisition control center 7 is connected with power supply 8 and terminal device 9.The front end tube wall of stomach tube 1
Multiple attraction side opening (not shown)s are equipped with, stomach tube 1 is made of rubber or silica gel material, preferably polyurethane material.Stomach tube 1
Interior insertion wire guide 2, plays the role of moulding to entire stomach tube, can prevent the tube body of entire stomach tube is excessively soft to cause to be difficult to insert
Enter, bring additional pain to patient, sets when pipe is completed and extract wire guide 2 out, the wire guide 2 is made of stainless steel material.
By CCD miniature image sensor 3 at front-end port, visual operation is inserted into stomach tube 1, and high-visible stomach tube 1 reaches the standard in stomach
True position, primary success, is not required to repeated intubation, reduces patient's pain, and in 1 insertion process of stomach tube, can clearly observe assessment
People digest road situation, provides foundation for diagnosing and treating.4 real-time dynamic monitoring gastric juice pH values of miniature pH value probe, flow pass
Sensor 5 accurately measures the amount for entering and leaving stomach tube, it can also be used to which the speed of control injection stomach tube content, providing for diagnosing and treating can
By foundation.Data acquisition control center 7 is integrated with A/D data acquisition function module and data processing control function module, conducting wire
The signal that the CCD miniature image sensor 3, miniature pH value probe 4 and flow sensor 5 monitor is sent to data by beam 6
Acquisition control center 7, after data acquisition control center 7 carries out data processing, display storage image information and control information, concurrently
It send to terminal device 9.
The data acquisition control center 7 is wirelessly connected with the terminal device 9, and described be wirelessly connected is bluetooth or WIFI
Connection, the terminal device 9 are smart phone, tablet computer or computer, and configuration is versatile and flexible, and monitoring is convenient.The flow passes
Sensor 5 is stainless steel media isolation type pressure sensor, anti-corrosion acid-proof, long service life, save the cost.
It is also extended through in stomach tube 1 equipped with the first flushing pipe 10, first flushing pipe 10 is stretched out from the tail portion of stomach tube 1, in institute
It states annular on 10 top of the first flushing pipe and middle part tube wall and multiple rinse mouths 11 is set, to rinse the inside pipe wall of the stomach tube,
First flushing pipe, 10 lower end is equipped with rinse mouth 11 corresponding with the CCD miniature image sensor 3.First flushing pipe 10
It is flushable to fall to be attached to the gastric content on 1 inside pipe wall of stomach tube and CCD miniature image sensor 3, it is unobstructed and not in pipe to ensure
CCD miniature image sensor 3 is influenced to work.Further, as shown in Fig. 2, the pipe outer wall of the stomach tube 1 is equipped with closed at one end
Second flushing pipe 13,13 closed end of the second flushing pipe come downwards to along 1 pipe outer wall of stomach tube from the stomach tube front-end port 5
- 12CM locates the pipe outer wall that stomach tube 1 is fixed on after enclosing around stomach tube 1 one, is equipped in the circle segment of second flushing pipe 13 more
The rinse mouth 11 of a alignment 1 pipe outer wall of stomach tube.Due to individual difference, stomach it is of different sizes, circle segment may be provided at 5-
Within the scope of 12CM, clinic selects different configurations as needed, and second flushing pipe 13 can also be integrally formed with the stomach tube 1.
The pipe outer wall for immersing gastric juice part can be rinsed by the second flushing pipe 13 of setting, reach the function for rinsing cleaning pipe outer wall
Can, the attachment on tube wall is reduced, stimulation of the gastric content to stomach wall is reduced.13 upper end of first flushing pipe 10 and the second flushing pipe
Water inlet is equipped with nut cap 12, and when without flushing operation, nut cap 12 can cover the first flushing pipe 10 and the second flushing pipe 13, protects
Hold cleanliness without any pollution.
1 tail end of stomach tube is also equipped with the fixed device of umbrella shape, and the fixed device of the umbrella shape is equipped with control button 14, for controlling
System opens the fixed device of the umbrella shape.The fixed device of the umbrella shape has a fixed patch 15 of at least four, and when opening is distributed in umbrella,
And it is pasted on schneiderian membrane.Stomach tube 1 can be firmly secured on schneiderian membrane by the fixed device of the umbrella shape, and safety is both artistic and practical.
1 tail end of stomach tube be equipped with can spiral connection positive lock pressing tube device 16, pass through spiral positive lock pressing tube device
16 achieve the purpose that positive lock pressing tube.In use, the intelligence stomach tube can be connected with negative pressure suction device or positive pressure input unit, into
The operations such as row drainage, note food, injection.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to compared with
Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to skill of the invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the scope of the claims of invention.
Claims (9)
1. a kind of intelligence stomach tube, including stomach tube and through the wire guide being set in stomach tube, which is characterized in that the stomach tube front end
CCD miniature image sensor is equipped at port, the pipe antetheca of the stomach tube is popped one's head in equipped with miniature pH value, and the stomach tube tail end is set
Have a flow sensor, the stomach tube tail end be extended with respectively with the CCD miniature image sensor, miniature pH value probe and institute
The connected bundle conductor of flow sensor is stated, the bundle conductor is connect with data acquisition control center, in the data acquisition control
The heart is connected with power supply and terminal device.
2. intelligence stomach tube as described in claim 1, which is characterized in that the data acquisition control center and the terminal device
It is wirelessly connected, described be wirelessly connected is bluetooth or WIFI connection.
3. intelligence stomach tube as described in claim 1, which is characterized in that the terminal device be smart phone, tablet computer or
Computer.
4. intelligence stomach tube as described in claim 1, which is characterized in that the flow sensor is stainless steel media isolation type pressure
Force snesor.
5. intelligence stomach tube according to any one of claims 1-4, which is characterized in that also extended through in the stomach tube equipped with the first punching
Pipe is washed, multiple rinse mouths are arranged in annular on first flushing pipe top and middle part tube wall, to rinse the pipe of the stomach tube
Inner wall, first flushing pipe lower end are equipped with rinse mouth corresponding with the CCD miniature image sensor.
6. intelligence stomach tube as claimed in claim 5, which is characterized in that the pipe outer wall of the stomach tube is equipped with closed at one end second
Flushing pipe, second flushing pipe closed end comes downwards to along the stomach tube pipe outer wall to be located from the 5-12CM of stomach tube front-end port
It is fixed on the pipe outer wall of the stomach tube after the stomach tube one circle, is equipped with multiple alignment stomach tube pipes in the circle segment
The rinse mouth of outer wall.
7. intelligence stomach tube as claimed in claim 6, which is characterized in that the stomach tube tail end is described equipped with the fixed device of umbrella shape
The fixed device of umbrella shape is equipped with control button, opens the fixed device of the umbrella shape for controlling.
8. intelligence stomach tube as claimed in claim 7, which is characterized in that the umbrella shape fixed device has at least four when opening
Fixed patch, is pasted on schneiderian membrane.
9. intelligence stomach tube as described in claim 1, which is characterized in that the stomach tube tail end be equipped with can spiral connection positive pressure lock
Pipe device is used for positive lock pressing tube；The intelligence stomach tube can be connected with negative pressure suction device or positive pressure input unit, drained,
Infuse the operation such as food, injection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910088167.0A CN109846715A (en) | 2019-01-29 | 2019-01-29 | A kind of intelligence stomach tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910088167.0A CN109846715A (en) | 2019-01-29 | 2019-01-29 | A kind of intelligence stomach tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109846715A true CN109846715A (en) | 2019-06-07 |
Family
ID=66896824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910088167.0A Pending CN109846715A (en) | 2019-01-29 | 2019-01-29 | A kind of intelligence stomach tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109846715A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113317994A (en) * | 2021-06-22 | 2021-08-31 | 四川省医学科学院·四川省人民医院 | Anti-reflux stomach tube |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040118437A1 (en) * | 2002-12-23 | 2004-06-24 | Nguyen Nick Ngoc | Method of detecting flow in endoscope channels |
| CN201304116Y (en) * | 2008-12-01 | 2009-09-09 | 山东省千佛山医院 | Disposable anti-backflow anti-slipping double-cavity gastric tube |
| US20090318757A1 (en) * | 2008-06-23 | 2009-12-24 | Percuvision, Llc | Flexible visually directed medical intubation instrument and method |
| CN203861748U (en) * | 2014-06-05 | 2014-10-08 | 陆皓 | Portable stomach tube fixing patch |
| CN204182009U (en) * | 2014-09-05 | 2015-03-04 | 广州中医药大学第一附属医院 | A kind of visual air-cell guide-wire nasogastric tube |
| CN104799805A (en) * | 2015-05-20 | 2015-07-29 | 深圳市宝安区松岗人民医院 | Gastroscope and using method thereof |
| CN207822245U (en) * | 2017-06-20 | 2018-09-07 | 覃秋健 | A kind of anti-blockage stomach tube |
| CN209734563U (en) * | 2019-01-29 | 2019-12-06 | 黄世英 | Intelligent stomach tube |
| CN212466812U (en) * | 2020-03-10 | 2021-02-05 | 郑州大学第一附属医院 | Intelligent stomach tube capable of preventing slipping and flushing |
-
2019
- 2019-01-29 CN CN201910088167.0A patent/CN109846715A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040118437A1 (en) * | 2002-12-23 | 2004-06-24 | Nguyen Nick Ngoc | Method of detecting flow in endoscope channels |
| US20090318757A1 (en) * | 2008-06-23 | 2009-12-24 | Percuvision, Llc | Flexible visually directed medical intubation instrument and method |
| CN201304116Y (en) * | 2008-12-01 | 2009-09-09 | 山东省千佛山医院 | Disposable anti-backflow anti-slipping double-cavity gastric tube |
| CN203861748U (en) * | 2014-06-05 | 2014-10-08 | 陆皓 | Portable stomach tube fixing patch |
| CN204182009U (en) * | 2014-09-05 | 2015-03-04 | 广州中医药大学第一附属医院 | A kind of visual air-cell guide-wire nasogastric tube |
| CN104799805A (en) * | 2015-05-20 | 2015-07-29 | 深圳市宝安区松岗人民医院 | Gastroscope and using method thereof |
| CN207822245U (en) * | 2017-06-20 | 2018-09-07 | 覃秋健 | A kind of anti-blockage stomach tube |
| CN209734563U (en) * | 2019-01-29 | 2019-12-06 | 黄世英 | Intelligent stomach tube |
| CN212466812U (en) * | 2020-03-10 | 2021-02-05 | 郑州大学第一附属医院 | Intelligent stomach tube capable of preventing slipping and flushing |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113317994A (en) * | 2021-06-22 | 2021-08-31 | 四川省医学科学院·四川省人民医院 | Anti-reflux stomach tube |
| CN113317994B (en) * | 2021-06-22 | 2023-06-16 | 四川省医学科学院·四川省人民医院 | Anti-reflux stomach tube |
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