CN112156259A - Conversion valve, air pump type automatic gastric lavage machine and gastric lavage method - Google Patents
Conversion valve, air pump type automatic gastric lavage machine and gastric lavage method Download PDFInfo
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- CN112156259A CN112156259A CN202011082963.2A CN202011082963A CN112156259A CN 112156259 A CN112156259 A CN 112156259A CN 202011082963 A CN202011082963 A CN 202011082963A CN 112156259 A CN112156259 A CN 112156259A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M3/00—Medical syringes, e.g. enemata; Irrigators
- A61M3/02—Enemata; Irrigators
- A61M3/0279—Cannula; Nozzles; Tips; their connection means
- A61M3/0283—Cannula; Nozzles; Tips; their connection means with at least two inner passageways, a first one for irrigating and a second for evacuating
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- A61M1/0062—
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M3/00—Medical syringes, e.g. enemata; Irrigators
- A61M3/02—Enemata; Irrigators
- A61M3/0233—Enemata; Irrigators characterised by liquid supply means, e.g. from pressurised reservoirs
- A61M3/0254—Enemata; Irrigators characterised by liquid supply means, e.g. from pressurised reservoirs the liquid being pumped
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/10—Tube connectors; Tube couplings
- A61M39/105—Multi-channel connectors or couplings, e.g. for connecting multi-lumen tubes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/22—Valves or arrangement of valves
- A61M39/223—Multiway valves
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/22—Valves or arrangement of valves
- A61M39/225—Flush valves, i.e. bypass valves for flushing line
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/22—Valves or arrangement of valves
- A61M39/24—Check- or non-return valves
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2210/00—Anatomical parts of the body
- A61M2210/10—Trunk
- A61M2210/1042—Alimentary tract
- A61M2210/1053—Stomach
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- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pulmonology (AREA)
- External Artificial Organs (AREA)
- Taps Or Cocks (AREA)
Abstract
A change-over valve, an air pump type automatic gastric lavage machine and a gastric lavage method. Relates to medical equipment, in particular to a gastric lavage machine component with the function of strongly sucking gastric contents before gastric lavage, a complete machine and a gastric lavage method. Provides a change-over valve, an air pump type automatic stomach washer and a stomach washing method which can prevent stomach contents from passing through a sewage cavity when strong suction is performed and do not have a bidirectional pipeline in the machine. The rotary valve comprises a motor, a valve seat, a rotary pin, a valve body and a valve core, wherein the rotary pin is pivoted in the valve seat, the motor is arranged on the side surface of the valve seat and drives the rotary pin to rotate in a reciprocating manner within a 90-degree range, and a shifting piece is arranged at the top of the rotary pin extending out of the valve seat. The invention can not cause the problems of blocking of devices inside the dirty liquid cavity and the like, and can also store the dirty liquid and stomach contents separately, thereby facilitating the subsequent garbage classification treatment.
Description
Technical Field
The invention relates to medical equipment, in particular to a gastric lavage machine component with a function of strongly sucking gastric contents before gastric lavage, a complete machine and a gastric lavage method.
Background
The gastric lavage machine is a common medical device used for rescuing patients suffering from food poisoning and drug taking and for gastric lavage before operation in various medical institutions, emergency centers and the like. In practical application, however, a patient with satiety frequently encounters a situation that the stomach content of the patient with satiety is large and the content still exists in a solid state due to non-digestion, so that the efficiency of gastric lavage of the patient with satiety by the gastric lavage machine in the prior art is low.
The conventional gastric lavage machine has the working principle that the conventional gastric lavage machine does not have the function of independently sucking the gastric contents of a satiety patient, or the gastric chyme in the stomach needs to be discharged through a dirty liquid cavity in equipment in the early stage, and has the following two practical technical problems.
Disclosure of Invention
Aiming at the problems, the invention provides a change-over valve, an air pump type automatic gastric lavage machine and a gastric lavage method, which can ensure that the gastric contents do not pass through a sewage cavity when strong suction is carried out and do not have a bidirectional pipeline in the machine.
The technical scheme of the invention is as follows: a change-over valve comprises a motor, a valve seat, a rotating pin, a valve body and a valve core, wherein the rotating pin is pivoted in the valve seat, the motor is arranged on the side surface of the valve seat and drives the rotating pin to rotate in a reciprocating manner within a range of 90 degrees, the valve body is fixedly connected to the lower part of the valve seat, the valve body is provided with a valve hole, the valve core is pivoted in the valve hole, the top of the valve core is provided with a square groove, the bottom of the rotating pin is provided with a square head, and the square head is inserted into the square groove; an upper cavity and a lower cavity are arranged in the valve core, the upper cavity is provided with an upper cavity inlet and an upper cavity outlet, the lower cavity is provided with a lower cavity inlet and a lower cavity outlet,
the valve body is provided with a second inlet valve port and a second outlet valve port which are matched with the inlet of the upper cavity and the outlet of the upper cavity in height,
the valve body is also provided with a first inlet valve port and a first outlet valve port which are matched with the lower cavity inlet and the lower cavity outlet in height,
the angle between the second inlet valve port and the second outlet valve port and the angle between the first inlet valve port and the first outlet valve port form an included angle of 30-90 degrees.
And a shifting sheet is arranged at the top of the rotating pin extending out of the valve seat.
The top surface of the valve seat is provided with a first electric contact and a second electric contact, the first electric contact and the second electric contact are arranged at an included angle of 30-90 degrees, and the shifting piece is arranged between the first electric contact and the second electric contact.
The utility model provides an automatic gastric lavage machine of air pump formula, includes dirty sap cavity, liquid medicine cavity, water valve, controller and a plurality of pipeline, the liquid medicine bucket is connected to the one end in liquid medicine cavity, and the other end passes through the stomach tube is connected into to the water valve, connect dirty liquid bucket behind the dirty sap cavity, the valve rod of dirty liquid valve in the dirty liquid cavity with the linkage of water valve interlocking still includes the change-over valve, connect out the stomach tube before the change-over valve, go out two the tunnel after, connect all the way dirty liquid cavity, another way connect the suction bottle.
The stomach tube feeding device further comprises a tee joint, and the tee joint is respectively connected with the stomach tube feeding device, the stomach tube discharging device and the disposable stomach tube.
And the outlet of the stomach tube is respectively communicated with the inlet of the upper cavity and the inlet of the lower cavity of the switching valve.
The lower cavity outlet of the conversion valve is connected with the sewage cavity or the suction bottle, and the upper cavity outlet of the conversion valve is connected with the suction bottle or the sewage cavity.
A gastric lavage method of an air pump type automatic gastric lavage machine comprises the following steps:
1) before full stomach lavage, the switching valve is started to be communicated with the suction bottle, so that the stomach outlet tube is communicated with the suction bottle through the switching valve to discharge the content in the stomach;
2) and after gastric contents are discharged, the switching valve is started to be communicated with the sewage cavity, and gastric lavage is carried out.
The invention utilizes the change-over valve and the tee joint which is connected with the stomach tube inlet, the stomach tube outlet and the disposable stomach tube to construct three one-way pipelines, namely: the liquid medicine barrel → the liquid medicine cavity → the water valve → the stomach tube → the tee → the disposable stomach tube → the stomach, the stomach → the disposable stomach tube → the tee → the stomach tube → the change-over valve → the suction bottle and the stomach → the disposable stomach tube → the tee → the stomach tube → the change-over valve → the sewage cavity → the sewage barrel.
The tee joint is used for ensuring that the stomach of the patient can enter and exit from the stomach tube and the stomach tube in one way in the air pump type automatic gastric lavage machine, so that the cross flow of residues and the like in the stomach of different patients remained in the air pump type automatic gastric lavage machine in the repeated use process can be avoided; the risk of cross-infection between patients is avoided.
Be equipped with two cavitys in the case of change-over valve, two cavitys all are equipped with business turn over hole, and the business turn over hole of two cavitys passes through the rotation of case, all can correspond with the business turn over hole on the valve body alone in proper order, through adjusting change-over valve for two one-way pipeline that change-over valve constitutes can use under the operating mode of difference. When the gastric contents of the patient are sucked, the gastric contents are directly communicated with the suction bottle through the change-over valve; when the dirty liquid is discharged, the dirty liquid directly communicates with the dirty liquid cavity through the change-over valve and then enters the dirty liquid barrel. Therefore, the gastric contents can not pass through the dirty liquid cavity in the suction process, the problems of blockage of devices inside the dirty liquid cavity and the like can not be caused, the dirty liquid and the gastric contents can be separately stored, and the subsequent garbage classification treatment is convenient.
Drawings
Figure 1 is a schematic diagram of the operation of the present invention,
figure 2 is a working principle diagram of the invention in a strong suction working state,
figure 3 is a functional diagram of the present invention in a gastric lavage mode,
figure 4 is a schematic view of the construction of a change-over valve according to the invention,
figure 5 is a left side view of figure 4,
figure 6 is a top view of figure 4,
figure 7 is a cross-sectional view a-a of figure 4,
figure 8 is a cross-sectional view B-B of figure 4,
figure 9 is a schematic perspective view of a valve block in a diverter valve according to the present invention,
figure 10 is a schematic perspective view of a spool in a diverter valve according to the present invention,
fig. 11 is a schematic view of the valve cartridge of the present invention.
In the figure: the solid arrow indicates the stomach (blowdown),
the dashed arrowed line indicates entry into the stomach (intake),
the chain double-dashed line indicates the linkage relationship,
the dashed box represents the gastric lavage machine body;
in the figure, 1 is a sewage cavity, 10 is a sewage valve rod, 11 is a sewage discharge pipe, 2 is a liquid medicine cavity,
3 is a changeover valve, 31 is a changeover valve drainage pipe I, 32 is a changeover valve drainage pipe II, 301 is a motor, 302 is a rotary pin, 3021 is a shifting piece, 3022 is a square head, 3031 is an electric contact I, 3032 is an electric contact II,
304 is a valve body, 3040 is a valve hole, 3041 is a first inlet port, 3042 is a first outlet port, 3043 is a second inlet port, 3044 is a second outlet port,
305 is a valve core, 3051 is a lower cavity, 30511 is an inlet of the lower cavity, 30512 is an outlet of the lower cavity, 3052 is an upper cavity, 30521 is an inlet of the upper cavity, 30522 is an outlet of the upper cavity, 3053 is a square groove,
4 is a liquid medicine valve, 5 is a tee joint, 51 is a gastric tube, 52 is a gastric tube, 53 is a disposable gastric tube, and 501 is an old-fashioned mechanical gastric tube.
Detailed Description
The present invention is further described with reference to fig. 1-11, and firstly, a switching valve 3 includes a motor 301, a valve seat, a rotating pin 302, a valve body 304 and a valve core 305, the rotating pin 302 is pivoted in the valve seat, the motor 301 is disposed on the side surface of the valve seat to drive the rotating pin 302 to rotate reciprocally within a range of 90 °, the valve body 304 is fixedly connected to the lower portion of the valve seat, the valve body 304 has a valve hole 3040, the valve core 305 is pivoted in the valve hole 3040, the top of the valve core 305 is provided with a square groove 3053, the bottom of the rotating pin 302 is provided with a square head 3022, and the square head 3022 is inserted; an upper cavity 3052 and a lower cavity 3051 are arranged in the valve core 305, the upper cavity 3052 is provided with an upper cavity inlet 30521 and an upper cavity outlet 30522, the lower cavity 3051 is provided with a lower cavity inlet 30511 and a lower cavity outlet 30512,
the valve body 304 is provided with a second inlet valve port 3043 and a second outlet valve port 3044 which are highly matched with the upper cavity inlet 30521 and the upper cavity outlet 30522,
the valve body 304 is further provided with a first inlet valve port 3041 and a first outlet valve port 3042 which are highly matched with the lower cavity inlet 30511 and the lower cavity outlet 30512,
the angle between the second inlet port 3043 and the second outlet port 3044 and the angle between the first inlet port 3041 and the first outlet port 3042 are 30-90 deg. The angles of the second inlet port 3043 and the second outlet port 3044 on the valve body 304 and the first inlet port 3041 and the first outlet port 3042 are staggered, the valve core 305 is driven by the motor 301 to rotate, the second inlet port 3043 and the second outlet port 3044 on the valve body 304 and the first inlet port 3041 and the first outlet port 3042 on the valve core 305 are communicated with the corresponding inlet and outlet of any group of the upper chamber inlet 30521 and the upper chamber outlet 30522 on the valve core 305 and the corresponding inlet and outlet of the lower chamber inlet 30511 and the lower chamber outlet 30512, and the other group of the inlet and outlet are staggered and closed. The switching valve 3 can freely switch out the stomach tube 52 to be connected with the sewage cavity 1 or the suction bottle.
The top of the rotating pin 302 extending out of the valve seat is provided with a shifting piece 3021, so that an operator can manually adjust the flow rate in the pipeline according to actual use conditions, including switching the pipeline communication direction or adjusting the sizes of the openings of the valve core 305 and the valve body 304 corresponding to the inlet and the outlet.
Furthermore, an electric contact 3031 and an electric contact 3032 are arranged on the top surface of the valve seat, the arrangement positions of the electric contact 3031 and the electric contact 3032 form an included angle of 30-90 degrees, and the shifting piece 3021 is arranged between the electric contact 3031 and the electric contact 3032. The dial 3021 rotates between the first electrical contact 3031 and the second electrical contact 3032, and when the dial 3021 contacts with any one of the contacts, the contact sends out an electric control signal corresponding to the contact, so that the controller can control the equipment conveniently.
The utility model provides an automatic gastric lavage machine of air pump formula, including dirty liquid chamber 1, liquid medicine chamber 2, water valve, controller and a plurality of pipeline, the liquid medicine bucket is connected to the one end in liquid medicine chamber 2, and the other end passes through the water valve and connects into stomach tube 51, connects dirty liquid bucket behind the dirty liquid chamber 1, and the valve rod 10 and the water valve interlocking of dirty liquid valve in the dirty liquid chamber 1 link, still includes change-over valve 3, connects out stomach tube 52 before the change-over valve 3, goes out two the tunnel after, connects dirty liquid chamber 1 all the way, another way connects the suction bottle. The interlocking linkage of the valve rod 10 of the dirty liquid valve in the dirty liquid cavity 1 and the water valve is not described in detail in the present case because of the prior art, and the interlocking linkage is essentially that the water valve is opened, when liquid medicine is fed into the stomach, the dirty liquid valve needs to be in a closed state, and the liquid medicine is sufficient, when the dirty liquid valve pumps out the dirty liquid from the stomach, the dirty liquid valve is opened, and the water valve needs to be closed (the interlocking linkage relationship between the two is shown by a chain double-dashed line in the figure).
Also comprises a three-way pipe 5, wherein the three-way pipe 5 is respectively connected with a gastric tube inlet 51, a gastric tube outlet 52 and a disposable gastric tube 53.
The outlets of the gastric outlet tube 52 are respectively communicated with the upper cavity inlet 30521 and the lower cavity inlet 30511 of the switching valve 3.
The lower cavity outlet 30512 of the switching valve 3 is connected to the sewage chamber 1 or the suction bottle, the upper cavity outlet 30521 of the switching valve 3 is connected to the suction bottle or the sewage chamber 1, and the two pipelines are separated by using the two chambers of the valve core 305 in the switching valve 3, so that the pipelines are separated.
The automatic gastric lavage machine of air pump formula utilizes change-over valve and the tee bend of being connected into stomach tube, play stomach tube and disposable stomach tube, has constructed three one-way pipelines, promptly: the liquid medicine barrel → the liquid medicine cavity → the water valve → the stomach tube → the tee → the disposable stomach tube → the stomach, the stomach → the disposable stomach tube → the tee → the stomach tube → the change-over valve → the suction bottle and the stomach → the disposable stomach tube → the tee → the stomach tube → the change-over valve → the sewage cavity → the sewage barrel. The three pipelines are mutually isolated and flow in a single direction, so that the mutual pollution of liquid medicine, dirty liquid and the like is avoided, and the risk of cross infection of patients in the process of multiple use is avoided.
A gastric lavage method of an air pump type automatic gastric lavage machine comprises the following steps:
1) strong suction, before full stomach lavage, the change-over valve 3 is started to be communicated with the suction bottle, so that the stomach outlet tube 52 is communicated with the suction bottle through the change-over valve 3 to discharge the stomach content;
2) after gastric lavage is carried out, the gastric content is discharged, the change-over valve 3 is started to be communicated with the sewage cavity 1, and gastric lavage operation is carried out.
The method has the advantages of simple operation, high working reliability and low failure probability, and reduces the risk of prolonging gastric lavage time of patients.
The present invention is not limited to the above-mentioned embodiments, and based on the technical solutions disclosed in the present invention, those skilled in the art can make some substitutions and modifications to some technical features without creative efforts according to the disclosed technical contents, and these substitutions and modifications are all within the protection scope of the present invention.
Claims (8)
1. A change-over valve is characterized by comprising a motor, a valve seat, a rotating pin, a valve body and a valve core, wherein the rotating pin is pivoted in the valve seat, the motor is arranged on the side surface of the valve seat and drives the rotating pin to rotate in a reciprocating manner within a range of 90 degrees, the valve body is fixedly connected to the lower part of the valve seat, the valve body is provided with a valve hole, the valve core is pivoted in the valve hole, the top of the valve core is provided with a square groove, the bottom of the rotating pin is provided with a square head, and the square head is inserted into the square groove; an upper cavity and a lower cavity are arranged in the valve core, the upper cavity is provided with an upper cavity inlet and an upper cavity outlet, the lower cavity is provided with a lower cavity inlet and a lower cavity outlet,
the valve body is provided with a second inlet valve port and a second outlet valve port which are matched with the inlet of the upper cavity and the outlet of the upper cavity in height,
the valve body is also provided with a first inlet valve port and a first outlet valve port which are matched with the lower cavity inlet and the lower cavity outlet in height,
the angle between the second inlet valve port and the second outlet valve port and the angle between the first inlet valve port and the first outlet valve port form an included angle of 30-90 degrees.
2. Switching valve as claimed in claim 1, characterized in that a pick is provided at the top of the pivot pin projecting beyond the valve seat.
3. The changeover valve as claimed in claim 2, wherein first and second electrical contacts are provided on the top surface of the valve seat, the first and second electrical contacts being disposed at an angle of 30-90 ° and the finger being disposed between the first and second electrical contacts.
4. The utility model provides an automatic gastric lavage machine of air pump formula, includes dirty sap cavity, liquid medicine cavity, water valve, controller and a plurality of pipeline, the liquid medicine bucket is connected to the one end in liquid medicine cavity, and the other end passes through the stomach tube is connected into to the water valve, connect dirty liquid bucket behind the dirty sap cavity, the valve rod of dirty liquid valve in the dirty liquid cavity with the linkage of water valve interlocking, its characterized in that still includes claim 1 the change-over valve, connect out the stomach tube before the change-over valve, go out two the tunnel after, connect all the way dirty liquid cavity, another way connect the suction bottle.
5. The air pump type automatic gastric lavage machine of claim 4 further comprising a tee joint respectively connected to said gastric feeding tube, gastric discharging tube and disposable gastric tube.
6. The air pump type automatic gastric lavage machine according to claim 4, wherein the outlet of the gastric tube is respectively communicated with the inlet of the upper cavity and the inlet of the lower cavity of the switching valve.
7. The automatic air pump stomach washer as claimed in claim 4, wherein the lower chamber outlet of the switching valve is connected to the dirty liquid chamber or the suction bottle, and the upper chamber outlet of the switching valve is connected to the suction bottle or the dirty liquid chamber.
8. A gastric lavage method of an air pump type automatic gastric lavage machine is characterized by comprising the following steps:
1) before full stomach lavage, the switching valve is started to be communicated with the suction bottle, so that the stomach outlet tube is communicated with the suction bottle through the switching valve to discharge the content in the stomach;
2) and after gastric contents are discharged, the switching valve is started to be communicated with the sewage cavity, and gastric lavage is carried out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011082963.2A CN112156259B (en) | 2020-10-12 | 2020-10-12 | Air pump type automatic gastric lavage machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011082963.2A CN112156259B (en) | 2020-10-12 | 2020-10-12 | Air pump type automatic gastric lavage machine |
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| Publication Number | Publication Date |
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| CN112156259A true CN112156259A (en) | 2021-01-01 |
| CN112156259B CN112156259B (en) | 2022-05-03 |
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| CN202011082963.2A Active CN112156259B (en) | 2020-10-12 | 2020-10-12 | Air pump type automatic gastric lavage machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113288814A (en) * | 2021-07-07 | 2021-08-24 | 中国人民解放军陆军军医大学第一附属医院 | Device for discharging accumulated gas in stomach of infant |
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| CN205423951U (en) * | 2015-11-30 | 2016-08-03 | 苏州许叉叉家居用品制造有限公司 | Water purifier change -over valve |
| CN207229832U (en) * | 2017-07-29 | 2018-04-13 | 宁波市奉化盛灵气动机电有限公司 | A kind of twin flue synchronism switching valve |
| CN208809191U (en) * | 2017-11-15 | 2019-05-03 | 卜凡靖 | A kind of gastroenterology doctor gastric lavage apparatus |
| CN207961620U (en) * | 2017-12-28 | 2018-10-12 | 玉环禹治水暖科技有限公司 | A kind of straight-through switching valve on water purifier |
| CN108653854A (en) * | 2018-05-17 | 2018-10-16 | 刘玮 | A kind of pediatrician's paediatrics negative pressure gastric lavage device |
| CN110522396A (en) * | 2019-09-04 | 2019-12-03 | 重庆金山医疗技术研究院有限公司 | A kind of medical endoscope and its aqueous vapor switching valve |
| CN111207128A (en) * | 2020-03-11 | 2020-05-29 | 江苏东顺新能源科技有限公司 | Rotary valve type hydraulic reversing valve, hydraulic system and grid punching equipment |
| CN213698270U (en) * | 2020-10-12 | 2021-07-16 | 江苏科凌医疗器械有限公司 | Change-over valve for gastric lavage machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113288814A (en) * | 2021-07-07 | 2021-08-24 | 中国人民解放军陆军军医大学第一附属医院 | Device for discharging accumulated gas in stomach of infant |
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