CN112755262A - Liquid filling and sucking system - Google Patents

Liquid filling and sucking system Download PDF

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Publication number
CN112755262A
CN112755262A CN202110039287.9A CN202110039287A CN112755262A CN 112755262 A CN112755262 A CN 112755262A CN 202110039287 A CN202110039287 A CN 202110039287A CN 112755262 A CN112755262 A CN 112755262A
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CN
China
Prior art keywords
liquid
perfusion
bag
pressure
peristaltic pump
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.)
Pending
Application number
CN202110039287.9A
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Chinese (zh)
Inventor
邓民尚
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Guangzhou Meitai Medical Technology Co ltd
Original Assignee
Guangzhou Meitai Medical Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guangzhou Meitai Medical Technology Co ltd filed Critical Guangzhou Meitai Medical Technology Co ltd
Priority to CN202110039287.9A priority Critical patent/CN112755262A/en
Publication of CN112755262A publication Critical patent/CN112755262A/en
Pending legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/08—Accessories or related features not otherwise provided for
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2217/00—General characteristics of surgical instruments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2217/00—General characteristics of surgical instruments
    • A61B2217/002—Auxiliary appliance
    • A61B2217/005—Auxiliary appliance with suction drainage system
    • 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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • 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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3331—Pressure; Flow

Abstract

The invention discloses a liquid filling and sucking system, which comprises a filling device, a sucking device, a measuring device and a control system, wherein the filling device is connected with the sucking device; the perfusion device comprises at least one pressure tank, and a perfusion liquid bag and an inflating air pressure device for expanding and extruding the perfusion liquid bag are arranged in the pressure tank; the water outlet end of the perfusion liquid bag is connected with a perfusion hose, and the perfusion hose is connected with a perfusion channel through a flow valve; the suction device comprises a peristaltic pump, an inlet hose of the peristaltic pump is connected with the suction channel through a collection tank, and an outlet hose of the peristaltic pump is connected with the waste liquid bottle through a flowmeter; the measuring device comprises a water yield monitoring device and a pressure measuring device; the control system is respectively and electrically connected with the inflation gas pressure device, the flow valve, the peristaltic pump and the water yield monitoring device. According to the liquid infusion and suction system provided by the embodiment of the invention, the pressure tank and the peristaltic pump are matched with each other, so that the loss amount of the infusion liquid entering a human body in the operation process can be accurately calculated in real time, and the operation is ensured to be safely and efficiently carried out.

Description

Liquid filling and sucking system
Technical Field
The invention relates to the technical field of medical instruments, in particular to a liquid filling and sucking system.
Background
The medical perfusion operation needs two processes of perfusion and suction, for example, in the gynecological operation, the amount of perfusion solution absorbed by a human body needs to be monitored, and if the amount of perfusion solution absorbed by the human body is too much, complications of the operation and even life risks are easy to occur. However, the liquid infusion and suction system is limited by the existing structure, two main parameters of infusion amount and suction amount are not measured at the same time, so that the infusion solution amount input into a human body is difficult to accurately monitor, and potential safety hazards are buried in the medical infusion operation.
Disclosure of Invention
The invention provides a liquid irrigation and suction system, which aims to solve the technical problem that the amount of infusion solution input into a human body cannot be accurately monitored in the existing infusion operation.
In order to solve the above technical problem, an embodiment of the present invention provides a liquid suction system, including:
the device comprises a perfusion device, a suction device, a measuring device and a control system;
the filling device comprises at least one pressure tank, and a pressure gauge, a filling liquid bag and an inflating air pressure device for expanding and extruding the filling liquid bag are arranged in the pressure tank; the water outlet end of the perfusion liquid bag is connected with a perfusion hose, and the perfusion hose is connected with a perfusion channel through a flow valve;
the suction device comprises a peristaltic pump, an inlet hose of the peristaltic pump is connected with the suction channel through a collection tank, and an outlet hose of the peristaltic pump is connected with the waste liquid bottle through a flowmeter;
the measuring device comprises a water yield monitoring device and a pressure measuring device for monitoring the pressure of the pressure tank, wherein the water yield monitoring device is a weighing sensor or a perfusate flowmeter for monitoring the water yield of the perfusate bag;
the control system is respectively and electrically connected with the inflating air pressure device, the flow valve, the peristaltic pump and the water yield monitoring device.
As one of the preferable schemes, the inflation air pressure device comprises an inflation bag and an inflator pump, wherein the air inlet end of the inflation bag is connected with the air supply end of the inflator pump, and the inflator pump is electrically connected with the control system.
As one of the preferred schemes, the control system comprises a human-computer interaction interface, a data acquisition card and a circuit mechanism; and the circuit mechanism is connected with the human-computer interaction interface through the data acquisition card.
Preferably, the circuit mechanism at least comprises a sensor circuit, a single chip circuit and a signal conversion circuit.
Preferably, the filling device further comprises a stop valve disposed on the filling hose.
As one of the preferable schemes, the suction device further comprises a sealed negative pressure tank, a collection bag is arranged in the sealed negative pressure tank, and the water outlet end of the perfusion liquid bag is connected with the water inlet end of the collection bag through a suction pipe.
As one preferable scheme, the pressure tank is provided with a cover door and a cavity, and the cover door covers the opening of the cavity.
As one of the preferable schemes, a soft clapboard is arranged in the cavity, the inflatable air pressure device is arranged on the upper layer of the soft clapboard, and the perfusion liquid bag is arranged on the lower layer of the soft clapboard.
As one preferable scheme, the cover door is a transparent door body.
As one of the preferable schemes, the perfusion device further comprises a multi-way valve, the water outlet ends of the plurality of pressure tanks are respectively communicated with the liquid inlet end of the multi-way valve, and the liquid outlet end of the multi-way valve is communicated with the flow valve; the multi-way valve is controlled by the control system
Compared with the prior art, the embodiment of the invention has the beneficial effects that the perfusion device, the suction device and the measuring device are matched with each other, the perfusion control is carried out by using the pressure tank under the control of the control system, and the suction control is carried out by using the peristaltic pump, so that the joint operation of constant perfusion and quick suction under stable pressure is realized; in addition, the filling weight parameter and the suction flow parameter are monitored in real time through the measuring device and the flow meter, the accuracy of parameter measurement is improved, the liquid filling and suction system can accurately calculate the loss amount of the solution entering the human body in the operation process in real time, the total amount of the liquid absorbed by the human body is displayed in time, and the operation is safely and efficiently carried out.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a liquid irrigation system in one embodiment of the present invention;
FIG. 2 is a schematic diagram of the construction of the perfusion apparatus in one embodiment of the present invention;
FIG. 3 is a schematic diagram of a liquid irrigation system in one mode of operation in one embodiment of the invention;
FIG. 4 is a schematic diagram of a fluid infusion system in another mode of operation in accordance with an embodiment of the present invention;
wherein, 1, a pressure tank; 11. a flow valve; 12. a pressure gauge; 13. an inflator pump; 14. a stop valve; 15. an electrically powered flow controller; 16. a perfusate flow meter; 17. connecting the instrument/lumen; 2. a peristaltic pump; 21. a flow meter; 22. a negative pressure tank; 23. a first weighing sensor; 24. an air pump; 25. a first pressure gauge; 26. a first peristaltic pump; 27. an aspiration flow meter; 28. a collection tank; 3. a weighing sensor; 4. and (5) a human-computer interaction interface.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present application, the terms "first", "second", "third", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, features defined as "first," "second," "third," etc. may explicitly or implicitly include one or more of the features. In the description of the present application, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
In the description of the present application, it is to be noted that, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention, as those skilled in the art will recognize the specific meaning of the terms used in the present application in a particular context.
An embodiment of the present invention provides a liquid filling and sucking system, and in particular, please refer to fig. 1 to 4, where fig. 1 is a schematic structural diagram of a liquid filling and sucking system in one embodiment of the present invention, fig. 2 is a schematic structural diagram of a filling device in one embodiment of the present invention, fig. 3 is a schematic structural diagram of a liquid filling and sucking system in one working mode in one embodiment of the present invention, and fig. 4 is a schematic structural diagram of a liquid filling and sucking system in another working mode in one embodiment of the present invention, where the liquid filling and sucking system specifically includes:
the device comprises a perfusion device, a suction device, a measuring device and a control system;
the perfusion device comprises at least one pressure tank 1 (as shown in fig. 1, two pressure tanks are provided in the embodiment), and the pressure tanks are used for squeezing the perfusion fluid bag, regulating the flow rate and controlling the water pressure; a pressure measuring device (optional pressure gauge 12 for monitoring the pressure in the pressure tank), a perfusion liquid bag and an inflation air pressure device for expanding and extruding the perfusion liquid bag are arranged in the pressure tank 1; the water outlet end of the perfusion liquid bag is connected with a perfusion hose, and the perfusion hose is connected with a perfusion channel through a flow valve 11;
the suction device comprises a peristaltic pump 2, an inlet hose of the peristaltic pump 2 is connected with the suction channel through a collection tank, and an outlet hose of the peristaltic pump 2 is connected with the waste liquid bottle through a flowmeter 21;
the measuring device comprises a water yield monitoring device, the water yield monitoring device is a perfusate flowmeter or a weighing sensor 3 (only the position of the weighing sensor is shown in figure 1, and the position is not completely shown due to the reason of a shell) arranged at the bottom of the perfusate bag, and the weighing sensor 3 is used for monitoring the water yield of the perfusate bag;
the control system is respectively and electrically connected with the inflating air pressure device, the flow valve 11, the peristaltic pump 2 and the water yield monitoring device.
It should be noted that, the existing liquid irrigation and suction system adopts the vacuum pump for suction, and uses the vacuum pump as the suction pump, and needs to continuously replace the waste liquid bottle of the vacuum pump, which takes a long time, thus greatly reducing the efficiency of the operation and affecting the effect of the operation, the inventor constructs the structure of the liquid irrigation and suction system through many research experiments, under the control of the control system, the perfusion device, the suction device and the measuring device are mutually matched, the pressure in the pressure tank is directly measured as the perfusion pressure by using the pressure tank for perfusion, the perfusion pressure can be more accurately monitored and adjusted and the perfusion flow can be controlled, the perfusion pressure is stabilized in the set pressure range, and the pressure in the cavity is kept safe and stable; by using the peristaltic pump as the suction pump, the tail end of the pipeline can be directly connected with the waste liquid bottle, so that the time for replacing the waste liquid bottle before the vacuum pump by using the vacuum pump as the suction pump in the prior art is reduced, and the operation efficiency is improved; the loss amount of the perfusion solution is calculated by measuring the perfusion amount and the suction amount, so that the amount of the solution absorbed by the human body is obtained, the risk of complications such as edema and the like caused by long operation time and large water absorption amount of a patient is reduced, and the safe operation is ensured.
For the perfusion device, preferably, the perfusion fluid bag in the pressure tank is led out through a perfusion hose, connected to a stop valve 14, further connected to an electric flow controller 15 (the electric flow controller is used to squeeze the hose and change the size of the outlet to control the liquid flow), and finally connected to a connection instrument/cavity 17 suitable for different operations through a corresponding first flow meter 16 (the liquid output of the perfusion fluid bag can be recorded through the flow meter), so that the perfusion function of the system is achieved.
The whole liquid filling and sucking system preferably works in the following processes: firstly, opening a pressure tank, placing a perfusion bag in the pressure tank, installing a connecting hose of the perfusion bag, placing the hose into a flow valve, closing the pressure tank, and installing the tail end of the hose on a perfusion channel of the endoscope; then an aspiration hose is arranged on the peristaltic pump, the outlet hose of the peristaltic pump is connected to a flowmeter, the outlet hose of the peristaltic pump is connected to a waste liquid bottle after passing through the flowmeter, the inlet hose of the peristaltic pump is connected to a collection tank, and the inlet hose of the peristaltic pump is connected to an aspiration channel for aspirating surgical instruments after passing through the collection tank; setting relevant parameters such as required perfusion pressure, perfusion flow, liquid loss upper limit and the like through a control system; then, the perfusion function of the system is started, the flow valve is opened, the pressure tank is pressurized to the set pressure, the solution in the perfusion solution bag is pressed out to the front end of the endoscope to overflow, the perfusion function is closed, the data is reset, and the preparation work is completed; and finally, starting a perfusion suction function, starting perfusion and suction simultaneously, and reading the residual weight of the current perfusion liquid bag, the flow of the perfusion solution, the real-time pressure of the pressure tank and the current loss from a human-computer interaction interface.
Further, in the above embodiment, the inflation pressure device includes an inflatable bag and an inflator, and an air inlet end of the inflatable bag is connected to an air supply end of the inflator 13. Preferably, the inflator is an adjustable inflator, and the control system controls the output liquid pressure by adjusting the inflating pressure. The inflation pump inflates the inflation bag, the infusion liquid bag is extruded in the pressure tank 1, and then the infusion solution is discharged.
Further, in the above embodiment, the control system includes a human-computer interaction interface 4, a data acquisition card, and a circuit mechanism; the circuit mechanism is connected with the human-computer interaction interface 4 through the data acquisition card. Preferably, the human-computer interface can also be connected with corresponding terminal equipment, such as a notebook computer, an industrial personal computer and other equipment, and the operation of the corresponding motor, pump and the like is controlled through data analysis of the terminal computer, so that the operation of the whole system is completed.
Further, in the above-described embodiment, the circuit mechanism includes at least a sensor circuit, a single chip circuit, and a signal conversion circuit. Of course, the circuitry may also include other transmitter circuitry, driver circuitry, or sub-controller circuitry, depending on the actual surgical requirements and product cost factors.
In order to optimize the control of the irrigation and suction system, the irrigation device further comprises a stop valve arranged on the irrigation hose. The related operations of changing the perfusate bag are performed by manually operating the stop valve 14.
It should be noted that the perfusion apparatus in the embodiment of the present invention has two operation modes:
one is the output quantity that uses weighing sensor monitoring perfusion solution, and weighing sensor sets up in the overhead tank bottom for the weight change of monitoring perfusion solution bag, uses in combination with the suction liquid flowmeter of suction device, and the accurate quantity of filling and the suction solution volume of measurable quantity go out, and two parameters are through combining the calculation, can know current real-time solution loss volume, can be by the volume of human absorptive solution, ensure that the safety of operation goes on.
The output quantity of the perfusion solution is monitored by using a perfusion solution flowmeter, the perfusion solution flowmeter is arranged on the perfusion channel and used for monitoring the output quantity of the perfusion solution bag and is combined with a suction solution flowmeter of the suction device for use, so that the accurate perfusion amount and the suction solution amount can be measured, the current real-time solution loss amount can be obtained by combining and calculating the two parameters, namely the amount of the solution which can be absorbed by the human body, and the safe operation is ensured.
It should be noted that the suction device in the embodiment of the present invention has two operation modes:
one mode is: the suction device comprises a sealed negative pressure tank 22, a collection bag (preferably, the bottom of the collection bag is also provided with a corresponding first weighing sensor 23) is arranged in the sealed negative pressure tank 22, and the water outlet end of the perfusion fluid bag is connected with the water inlet end of the collection bag through a suction tube; in order to realize the negative pressure state in the tank, the sealed negative pressure tank 22 preferably has a suction pump 24 disposed on the tank body to realize the negative pressure state in the tank by pumping air, and in addition, the inside of the negative pressure tank 22 is a plastic bag (i.e., a collection bag), the shell is made of any material, and needs to be sealed completely, and the suction tube is connected with the perfusion fluid bag. When the device is operated, the air suction pump 24 works to form negative pressure in the negative pressure tank 22, so that the liquid in the perfusion liquid bag is sucked into the plastic bag through the suction tube, and the volume of the collected liquid can be calculated by measuring and transmitting data through the corresponding first weighing sensor 23. In addition, the air pipe connected with the air pump 24 can be connected with a three-way joint and connected into a first pressure gauge 25. The suction device in the embodiment is suitable for the operation needing to measure the negative pressure.
The other working mode is as follows: the liquid in the suction tube is collected in a common collection tank 28 by a corresponding first peristaltic pump 26 (M in the figure is a motor corresponding to the first peristaltic pump 26), and preferably, a corresponding suction liquid flow meter 27 is connected to the suction tube, so that the amount of the liquid sucked can be known.
Further, in the above embodiment, the pressure tank 1 has a cover door and a cavity, and the cover door covers the opening of the cavity. The cover door is arranged, so that the whole pressure tank can be conveniently replaced by the filling liquid bag, and the operation is convenient.
In order to optimize the space structure in the pressure tank 1, a soft partition plate is arranged in the cavity, the upper layer of the soft partition plate is provided with the inflation air pressure device, and the lower layer of the soft partition plate is provided with the perfusion liquid bag.
In order to further facilitate observation of the volume of the perfusion fluid bag in the pressure tank 1, the cover door in this embodiment is a transparent door body.
In addition, considering that the specification of the perfusion fluid bag cannot be overlarge and more perfusion fluid is needed in the operation process, the liquid perfusion system based on the embodiment of the invention can be additionally provided with more perfusion fluid bags which are connected through a three-way valve/a four-way valve and the like, when the control system monitors that the residual liquid amount of the perfusion fluid bag A reaches a threshold value, the opening degree of the valve of the perfusion fluid bag A is reduced, and meanwhile, the valve of the perfusion fluid bag B is gradually opened, so that the liquid supplement of the two perfusion fluid bags is realized, and the perfusion output amount is not influenced.
The liquid filling and sucking system provided by the embodiment of the invention has the beneficial effects that the filling device, the sucking device and the measuring device are matched with each other, the filling control is carried out by using the pressure tank under the control of the control system, and the sucking control is carried out by using the peristaltic pump, so that the joint operation of constant filling and quick sucking functions under stable pressure is realized; in addition, the filling weight parameter and the suction flow parameter are monitored in real time through the measuring device and the flow meter, the accuracy of parameter measurement is improved, the liquid filling and suction system can accurately calculate the loss amount of the solution entering the human body in the operation process in real time, the total amount of the liquid absorbed by the human body is displayed in time, and the operation is safely and efficiently carried out.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.

Claims (10)

1. A liquid irrigation system, comprising:
the device comprises a perfusion device, a suction device, a measuring device and a control system;
the filling device comprises at least one pressure tank, and a pressure gauge, a filling liquid bag and an inflating air pressure device for expanding and extruding the filling liquid bag are arranged in the pressure tank; the water outlet end of the perfusion liquid bag is connected with a perfusion hose, and the perfusion hose is connected with a perfusion channel through a flow valve;
the suction device comprises a peristaltic pump, an inlet hose of the peristaltic pump is connected with the suction channel through a collection tank, and an outlet hose of the peristaltic pump is connected with the waste liquid bottle through a flowmeter;
the measuring device comprises a water yield monitoring device and a pressure measuring device for monitoring the pressure of the pressure tank, wherein the water yield monitoring device is a weighing sensor and/or a perfusate flowmeter for monitoring the water yield of the perfusate bag;
the control system is respectively and electrically connected with the inflating air pressure device, the flow valve, the peristaltic pump and the water yield monitoring device.
2. The liquid pumping system of claim 1, wherein the pneumatic device comprises an air bag and an inflator, an air inlet of the air bag is connected to an air supply of the inflator, and the inflator is electrically connected to the control system.
3. The liquid pumping system of claim 1, wherein the control system comprises a human-machine interface, a data acquisition card, a circuit mechanism; and the circuit mechanism is connected with the human-computer interaction interface through the data acquisition card.
4. The fluid aspirating system of claim 3, wherein said circuit means comprises at least a sensor circuit, a single chip circuit and a signal conversion circuit.
5. The liquid irrigation system of claim 1 wherein the irrigation device further comprises a shut-off valve disposed on the irrigation hose.
6. The fluid aspirating system of claim 1, wherein the aspirating device further comprises a sealed vacuum canister having a collection bag disposed therein, the outlet end of the infusion bag being connected to the inlet end of the collection bag by an aspiration tube.
7. The liquid irrigation system as defined in claim 1 wherein the pressure tank has a lid and a cavity, the lid covering an opening of the cavity.
8. The liquid pumping system of claim 7, wherein a soft partition is disposed in the cavity, the pneumatic device is disposed on an upper layer of the soft partition, and the liquid bag is disposed on a lower layer of the soft partition.
9. The liquid irrigation system of claim 7 wherein the cover door is a transparent door body.
10. The liquid irrigation system as defined in claim 1, wherein the irrigation device further comprises a multi-way valve, wherein the water outlet ends of the plurality of pressure tanks are respectively communicated with the liquid inlet ends of the multi-way valve, and the liquid outlet ends of the multi-way valve are communicated with the flow valve; the multi-way valve is controlled by the control system.
CN202110039287.9A 2021-01-12 2021-01-12 Liquid filling and sucking system Pending CN112755262A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110039287.9A CN112755262A (en) 2021-01-12 2021-01-12 Liquid filling and sucking system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110039287.9A CN112755262A (en) 2021-01-12 2021-01-12 Liquid filling and sucking system

Publications (1)

Publication Number Publication Date
CN112755262A true CN112755262A (en) 2021-05-07

Family

ID=75699987

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110039287.9A Pending CN112755262A (en) 2021-01-12 2021-01-12 Liquid filling and sucking system

Country Status (1)

Country Link
CN (1) CN112755262A (en)

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