CN217645618U - Carbon dioxide radiography equipment - Google Patents
Carbon dioxide radiography equipment Download PDFInfo
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- CN217645618U CN217645618U CN202220169754.XU CN202220169754U CN217645618U CN 217645618 U CN217645618 U CN 217645618U CN 202220169754 U CN202220169754 U CN 202220169754U CN 217645618 U CN217645618 U CN 217645618U
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Abstract
The utility model relates to the technical field of medical equipment, a carbon dioxide radiography equipment is disclosed. The carbon dioxide radiography equipment comprises a gas storage container, a distribution pipeline, a temporary storage device and an injection device. The gas storage container is used for storing carbon dioxide gas; the distribution pipeline comprises a main pipeline, a first branch, a second branch, an injection pipeline and a pipeline switching device, the main pipeline is communicated with the gas storage container, the first branch is arranged on the main pipeline, and the pipeline switching device is used for communicating the main pipeline with the second branch or communicating the second branch with the injection pipeline; the temporary storage device is communicated with the first branch and is used for temporarily storing the carbon dioxide gas; and the injection device is communicated with the second branch and is used for containing the carbon dioxide gas with preset dosage and injecting the carbon dioxide gas into the injection pipeline. The utility model discloses simple structure, light in weight, small, occupation space is few, easily carries, convenient operation, and the security is high, has brought very big facility for the allergic or renal dysfunction patient's of iodine preparation diagnosis and treatment.
Description
Technical Field
The utility model relates to the technical field of medical equipment, especially, relate to a carbon dioxide radiography equipment.
Background
The angiography is generally applied to the diagnosis and treatment of various clinical diseases, is helpful for doctors to find the state of an illness in time, controls the progress of the illness and effectively improves the survival rate of patients. Conventional angiography is to inject a contrast agent into a blood vessel, and since X-rays cannot penetrate the contrast agent, angiography can accurately reflect the location and extent of vascular lesions, but conventional iodine contrast agent has many side effects. For example, immediate hypersensitivity reactions, including pruritus, urticaria, angioedema, bronchospasm, hypotension, syncope, and the like; also for example, delayed-type anaphylaxis, which is manifested by anaphylaxis after contrast agent injection, mainly manifested by skin pruritus and urticaria; in addition, the intrinsic substance of the iodine preparation itself is composed of molecules which make it unavoidable to have a sensitizing effect on the human body, and excretion of the iodine preparation through the kidney also causes damage to the kidney function. Clinically, iodine contrast cannot be performed on patients with iodine allergy, obvious renal dysfunction, hyperthyroidism, multiple myeloma and severe hypertension.
The carbon dioxide radiography has the characteristics of no toxicity, no sensitization, dissolubility and the like, and can be used for people who are contraindicated in iodine radiography. The carbon dioxide can temporarily separate the blood in the blood vessel for quick imaging, and after the imaging is finished, the carbon dioxide gas can be quickly combined with the hemoglobin and is exhausted out of the body through the lung for respiratory exchange. However, the existing carbon dioxide radiography equipment has the disadvantages of complex structure, difficult carrying, inconvenient use and low safety.
SUMMERY OF THE UTILITY MODEL
Based on the above problem, an object of the utility model is to provide a carbon dioxide radiography equipment, simple structure, light in weight, small, occupation space is few, easily carries, convenient operation, and the security is high.
In order to achieve the purpose, the utility model adopts the following technical proposal:
a capnography apparatus comprising:
a gas storage container for storing carbon dioxide gas;
the distribution pipeline comprises a main pipeline, a first branch pipeline, a second branch pipeline, an injection pipeline and a pipeline switching device, the main pipeline is communicated with the gas storage container, the first branch pipeline is arranged on the main pipeline, and the pipeline switching device is used for communicating the main pipeline with the second branch pipeline or communicating the second branch pipeline with the injection pipeline;
a temporary storage device communicated with the first branch, wherein the temporary storage device is used for temporarily storing carbon dioxide gas;
and the injection device is communicated with the second branch and is used for containing a preset dosage of carbon dioxide gas and injecting the carbon dioxide gas into the injection pipeline.
As the utility model discloses an alternative of carbon dioxide radiography equipment, pipeline auto-change over device includes three-way valve and change over switch, the three-way valve respectively with the main line the second branch road with the injection line intercommunication, change over switch is used for switching on the main line with the second branch road, or switch on the second branch road with the injection line.
As the utility model discloses a carbon dioxide radiography equipment's alternative, pipeline auto-change over device includes two-position three way solenoid valve, two-position three way solenoid valve respectively with the main line the second branch road with the injection line intercommunication.
As the utility model discloses a carbon dioxide radiography equipment's alternative still including set up in the gas storage container with the pressure reducer between the main line, the pressure reducer is used for reducing the pressure of carbon dioxide gas.
As the utility model discloses a carbon dioxide radiography equipment's alternative, be provided with adjust knob on the pressure reducer, adjust knob is used for adjusting the gaseous velocity of flow of the carbon dioxide of pressure reducer output.
As the utility model discloses a carbon dioxide radiography equipment's alternative, still including set up in the pressure reducer with degerming filter between the main line, degerming filter is used for filtering the bacterium in the carbon dioxide gas.
As the utility model discloses a carbon dioxide radiography equipment's alternative, still including set up in the degerming filter with relief valve between the main line lets in when the pressure of the carbon dioxide gas of relief valve is greater than preset pressure, the relief valve is opened, otherwise, the relief valve is closed.
As an alternative of the carbon dioxide radiography apparatus of the present invention, the capacity of the temporary storage device is larger than the capacity of the injection device.
As an alternative of the carbon dioxide radiography apparatus of the present invention, the temporary storage device is an injector; and/or, the injection device is a syringe.
As the utility model discloses a carbon dioxide radiography equipment's alternative still include with the radiography pipe of injection line intercommunication, the radiography pipe is kept away from the one end of injection line is provided with the radiography syringe needle.
The utility model has the advantages that:
the utility model provides a carbon dioxide radiography equipment, when pipeline switching device switches on main line and second branch road, partly carbon dioxide gas of gas storage container storage flows into temporary storage device via main line and first branch road, the temporary storage carbon dioxide gas, another part carbon dioxide gas of gas storage container storage flows into injection apparatus via main line and second branch road, when pipeline switching device switches on second branch road and injection pipeline, the carbon dioxide gas of the predetermined dose that injection apparatus held flows into radiography pipe and radiography needle via second branch road and injection pipeline, and inject to the human body in, accomplish the carbon dioxide radiography under the radiation of angiogram machine ray, when needing to inject once more, pipeline switching device switches on main line and second branch road, make the carbon dioxide gas of temporary storage device flow into injection apparatus via first branch road, main line and second branch road, pipeline switching device switches on second branch road and injection pipeline again, the carbon dioxide gas of the predetermined dose that injection apparatus held flows into radiography pipe and radiography via second branch road and injection pipeline, and inject to the human body in, accomplish the carbon dioxide radiography needle under the radiation of angiogram machine ray. The utility model provides a carbon dioxide radiography equipment, simple structure, light in weight, it is small, occupation space is few, easily carries, convenient operation, and the security is high, has brought very big facility for iodine preparation allergy or kidney dysfunction patient's diagnosis and treatment.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention 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 for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a capnography apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating a structure of a gas container in a capnography apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a distribution pipeline in a capnography apparatus according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a temporary storage device in a carbon dioxide radiography apparatus according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an injection device in a capnography apparatus according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a pressure reducer in a capnography apparatus according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a sterilizing filter in a capnography apparatus according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a pressure release valve in a carbon dioxide radiography apparatus according to an embodiment of the present invention.
In the figure:
1-a gas storage container; 2-a distribution line; 3-temporary storage device; 4-an injection device; 5-a pressure reducer; 6-degerming
A filter; 7-a pressure relief valve;
11-a bottle body; 12-bottle mouth;
21-main pipeline; 211-a third male connector; 22-a first branch; 221-a fourth male connector; 23-a second branch;
231-a fifth male connector; 24-an injection line; 241-a sixth male joint; 25-a line switching device;
251-a three-way valve; 252-a diverter switch;
2521-first arrow; 2522-second arrow;
31-a first tube; 32-a first push rod; 33-a first injection head; 34-a fourth female connector;
41-a second tube; 42-a second push rod; 43-a second injection head; 44-a fifth female connector;
51-an adjusting knob; 52-a threaded joint; 53-first female connector;
61-a first male connector; 62-a second male connector;
71-a second female connector; 72-third female connector.
Detailed Description
In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
In the description of the present invention, 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 or a removable 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 invention can be understood as a specific case by those skilled in the art.
As shown in fig. 1 to 8, the embodiment provides a carbon dioxide radiography apparatus, which has a simple structure, a light weight, a small volume, a small occupied space, easy carrying, convenient operation and high safety, and brings great convenience for diagnosis and treatment of patients with iodine allergy or renal dysfunction. The carbon dioxide radiography equipment comprises a gas storage container 1, a distribution pipeline 2, a temporary storage device 3 and an injection device 4. The gas storage container 1 is used to store carbon dioxide gas. The distribution pipeline 2 comprises a main pipeline 21, a first branch 22, a second branch 23, an injection pipeline 24 and a pipeline switching device 25, the main pipeline 21 is communicated with the gas storage container 1, the first branch 22 is arranged on the main pipeline 21, and the pipeline switching device 25 is used for communicating the main pipeline 21 with the second branch 23 or communicating the second branch 23 with the injection pipeline 24. The buffer 3 is in communication with the first branch 22, the buffer 3 being used for temporarily storing carbon dioxide gas. The injection device 4 communicates with the second branch 23, the injection device 4 being adapted to contain a preset dose of carbon dioxide gas and to inject into the injection line 24.
When the pipeline switching device 25 connects the main pipeline 21 and the second branch 23, a part of the carbon dioxide gas stored in the gas storage container 1 flows into the temporary storage device 3 via the main pipeline 21 and the first branch 22 to temporarily store the carbon dioxide gas, and another part of the carbon dioxide gas stored in the gas storage container 1 flows into the injection device 4 via the main pipeline 21 and the second branch 23. When the second branch 23 and the injection pipeline 24 are connected by the pipeline switching device 25, the carbon dioxide gas with the preset dosage contained in the injection device 4 flows into the angiography catheter and the angiography needle through the second branch 23 and the injection pipeline 24, and is injected into the human body, and the carbon dioxide angiography is completed under the radiation of the angiography machine.
When the injection needs to be performed again, the pipeline switching device 25 conducts the main pipeline 21 and the second branch 23, so that the carbon dioxide gas in the temporary storage device 3 flows into the injection device 4 through the first branch 22, the main pipeline 21 and the second branch 23, the pipeline switching device 25 conducts the second branch 23 and the injection pipeline 24 again, the carbon dioxide gas with the preset dosage contained in the injection device 4 flows into the contrast catheter and the contrast injection needle through the second branch 23 and the injection pipeline 24 and is injected into the human body, and the carbon dioxide radiography is completed under the radiation of the rays of the angiography machine.
Optionally, the pipeline switching device 25 includes a three-way valve 251 and a switch 252, the three-way valve 251 is respectively communicated with the main pipeline 21, the second branch 23 and the injection pipeline 24, and the switch 252 is used for conducting the main pipeline 21 and the second branch 23 or conducting the second branch 23 and the injection pipeline 24. When the carbon dioxide gas is injected into the injection device 4, the selector switch 252 is screwed so that the selector switch 252 conducts the main line 21 and the second branch line 23. When the injection device 4 injects the carbon dioxide gas into the injection pipeline 24, the switch 252 is screwed, so that the switch 252 conducts the second branch 23 and the injection pipeline 24. The three-way valve 251 and the switch 252 are made of medical polymer materials respectively to meet the requirements of sterile medical environments.
The switch 252 is provided with a first arrow 2521 and a second arrow 2522, so that an operator can conveniently check the current conducting direction of the switch 252. The main pipeline 21 and the injection pipeline 24 are coaxially arranged, the second branch 23 is perpendicular to the main pipeline 21, the first arrow 2521 is perpendicular to the second arrow 2522, and at this time, the first arrow 2521 and the second arrow 2522 can be conveniently corresponding to the current conducting pipeline only by screwing the 90-degree change-over switch 252 clockwise or counterclockwise, so that the operation is simple and convenient.
In another embodiment, for automatic control, the pipeline switching device 25 may also include a two-position three-way solenoid valve, and the two-position three-way solenoid valve is respectively communicated with the main pipeline 21, the second branch pipeline 23 and the injection pipeline 24. The two-position three-way electromagnetic valve is controlled by double coils, one coil is powered on instantly, the power supply is closed, the valve is opened, and the other coil is powered on instantly, the power supply is closed, and the valve is closed. Can be kept in a closed or opened state for a long time, and can make the coil life longer.
Since the gas container 1 normally stores carbon dioxide gas in a high pressure state, in order to obtain carbon dioxide gas in a low pressure state required for injection, the carbon dioxide imaging apparatus may further include a pressure reducer 5 disposed between the gas container 1 and the main line 21, the pressure reducer 5 being for reducing the pressure of the carbon dioxide gas. The pressure reducer 5 is a regulator for reducing high-pressure gas to low-pressure gas and keeping the pressure and flow rate of the output gas constant. The pressure reducer 5 comprises a first-stage pressure reducing system and a second-stage pressure reducing system and consists of a valve ejector rod, a pressure regulating spring, an elastic film device, a pressure reducing door and other parts. The primary pressure reducing system is mainly used for automatically reducing high-pressure gas into medium-pressure gas until the pressure is reduced to 2MPa, and then sending the gas into the secondary pressure reducing system. In the secondary decompression system, when the pressure regulating screw is screwed, the decompression valve is opened and closed to different degrees through the pressure regulating spring, the elastic film device and the valve ejector rod so as to regulate the decompression degree of the oxygen fed by the primary decompression system or stop air supply.
To accommodate different injection requirements, an adjusting knob 51 is optionally provided on the pressure reducer 5, and the adjusting knob 51 is used for adjusting the flow rate of the carbon dioxide gas output by the pressure reducer 5.
To ensure the sterility of the injection, the capnography apparatus may further comprise a sterilizing filter 6 disposed between the pressure reducer 5 and the main line 21, the sterilizing filter 6 being for filtering bacteria within the carbon dioxide gas. The sterilizing filter 6 adopts a micro-filtration filter element with large specific surface area and filtering precision of more than 0.22 mu m, and is used for preventing impurities, harmful bacteria, microorganisms and the like in the carbon dioxide gas from entering a subsequent pipeline. The filter material is classified into hydrophilic and hydrophobic according to the relationship with water. The hydrophilic filter material is mainly applied to filtration and sterilization filtration of water or water/organic solution mixture; hydrophobic filter materials are trapped or directed into the filter membrane by water.
The filtering materials commonly used for filters are roughly the following: mixed cellulose esters, commonly used to make round, monolithic flat filters for fine filtration of liquids and gases; polypropylene, made into a folding type, is commonly used for a cylinder filter, has larger pore diameter and hydrophilicity, and belongs to a coarse filter material; polyvinylidene fluoride belongs to a fine filtering material, has heat resistance, chemical stability resistance and good steam sterilization tolerance, can be prepared into a hydrophilic filtering membrane, and is widely applied to filtering of sterile preparation water and injection water in pharmaceutical industry; the polyether sulfone is made into a folding type material which is commonly used for a cylinder filter, has good temperature resistance and hydrolysis resistance and is a hydrophilic material and is used for fine filtration of a solution with higher precision; nylon, made into a foldable type, is commonly used for a cylinder filter, and is made of hydrophilic materials and commonly used for fine filtration of liquid; polytetrafluoroethylene, in pleated form, is commonly used in cartridge filters, a hydrophobic material, which is a widely used material that is heat resistant and chemically resistant, is commonly used for fine filtration of water, inorganic solvents and air.
The carbon dioxide radiography equipment can further comprise a pressure release valve 7 arranged between the sterilizing filter 6 and the main pipeline 21, when the pressure of the carbon dioxide gas introduced into the pressure release valve 7 is greater than the preset pressure, the pressure release valve 7 is opened, otherwise, the pressure release valve 7 is closed. The pressure relief valve 7 is usually used in a situation that when the pressure in the equipment or the pipeline exceeds the set pressure of the pressure relief valve 7, the pressure relief is automatically opened, the pressure of a medium in the equipment or the pipeline is ensured to be below the set pressure, and the equipment and the pipeline are protected, so that accidents are prevented. In this embodiment, the pressure relief principle of the pressure relief valve 7 is adopted, so that when the pressure of the carbon dioxide gas introduced into the pressure relief valve 7 is greater than the preset pressure, the pressure relief valve 7 is opened, and the carbon dioxide gas introduced into the pressure relief valve 7 smoothly enters the main pipeline 21. Meanwhile, when the pressure of the carbon dioxide gas introduced into the pressure release valve 7 is lower than the preset pressure, the pressure release valve 7 is closed, so that the gas storage container 1 is convenient to replace, and the carbon dioxide gas of the main pipeline 21 is prevented from flowing backwards. When the pressure of the carbon dioxide gas introduced into the pressure release valve 7 is lower than the preset pressure, it indicates that the carbon dioxide gas in the gas storage container 1 is not sufficiently supplied, and at this time, the gas storage container 1 needs to be replaced.
Optionally, the capacity of the escrow device 3 is larger than the capacity of the injection device 4. Preferably, the volume of the buffer 3 is, for example, an integer multiple of the volume of the injection device 4, so that multiple injections into the injection device 4 are facilitated.
In order to reduce the cost, the temporary storage device 3 is an injector optionally; and/or the injection device 4 is a syringe. The injector can be a disposable medical injector, and the aseptic medical environment is ensured. The temporary storage device 3 includes a first tube 31, a first push rod 32 and a first injection head 33, the first tube 31 is used for containing carbon dioxide gas, pushing the first push rod 32, and pushing the carbon dioxide gas through a first piston on the first push rod 32 to be output through the first injection head 33. The injection device 4 comprises a second tube 41, a second push rod 42 and a second injection head 43, wherein the second tube 41 is used for containing carbon dioxide gas, the second push rod 42 is pushed, and the carbon dioxide gas can be pushed by a second piston on the second push rod 42 and output through the second injection head 43.
The capnography apparatus may also include a visualization catheter in communication with the injection line 24, with a visualization needle disposed at an end of the visualization catheter distal from the injection line 24. Carbon dioxide gas in the injection line 24 is injected into the body for imaging via the imaging catheter and the imaging needle.
The gas storage container 1 can be a disposable steel cylinder and is made of medical-grade aluminum alloy materials, the gas storage container 1 comprises a bottle body 11 and a bottle opening 12, the bottle opening 12 is in threaded connection with a threaded connector 52 of a pressure reducer 5, sealing performance is good, and disassembly is convenient. The first female joint 53 of the decompressor 5 is connected with the first male joint 61 of the sterilizing filter 6, the second male joint 62 of the sterilizing filter 6 is connected with the second female joint 71 of the pressure relief valve 7, the third female joint 72 of the pressure relief valve 7 is connected with the third male joint 211 of the main pipeline 21, the fourth male joint 221 of the first branch 22 is connected with the fourth female joint 34 of the temporary storage device 3, the fifth male joint 231 of the second branch 23 is connected with the fifth female joint 44 of the injection device 4, and the sixth male joint 241 of the injection pipeline 24 is connected with the sixth female joint of the contrast catheter. The joint structure of the male joint and the female joint can adopt a luer joint to ensure the sealing property. Luer is a standardized micro non-porous fitting that is connected by a male luer fitting and a matching female luer fitting.
The carbon dioxide imaging apparatus provided in this embodiment has a workflow substantially as follows: the carbon dioxide gas stored in the gas storage container 1 under the high pressure state enters the pressure reducer 5 for pressure reduction, the carbon dioxide gas under the low pressure state required for injection is reduced, the carbon dioxide gas after pressure reduction flows into the sterilizing filter 6 for sterilizing and filtering, the carbon dioxide gas after sterilizing flows into the pressure release valve 7, when the pressure of the carbon dioxide gas introduced into the pressure release valve 7 is greater than the preset pressure, the pressure release valve 7 is opened, the carbon dioxide gas flows into the main pipeline 21, when the pipeline switching device 25 conducts the main pipeline 21 and the second branch 23, a part of the carbon dioxide gas stored in the gas storage container 1 flows into the temporary storage device 3 through the main pipeline 21 and the first branch 22, the carbon dioxide gas is temporarily stored, the other part of the carbon dioxide gas stored in the gas storage container 1 flows into the injection device 4 through the main pipeline 21 and the second branch 23, when the pipeline switching device 25 conducts the second branch 23 and the injection pipeline 24, the carbon dioxide gas with the preset dosage contained in the injection device 4 flows into the contrast catheter and contrast through the second branch 23 and the injection pipeline 24 and is injected into the human body, and the carbon dioxide contrast is completed under the radiation of the angiography machine.
When the injection needs to be performed again, the pipeline switching device 25 conducts the main pipeline 21 and the second branch 23, so that the carbon dioxide gas in the temporary storage device 3 flows into the injection device 4 through the first branch 22, the main pipeline 21 and the second branch 23, the pipeline switching device 25 conducts the second branch 23 and the injection pipeline 24 again, the carbon dioxide gas with the preset dosage contained in the injection device 4 flows into the contrast catheter and the contrast injection needle through the second branch 23 and the injection pipeline 24 and is injected into the human body, and the carbon dioxide radiography is completed under the radiation of the rays of the angiography machine.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments illustrated herein, but is capable of various obvious modifications, rearrangements and substitutions without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (10)
1. A capnography apparatus, comprising:
a gas storage container (1) for storing carbon dioxide gas;
the distribution pipeline (2) comprises a main pipeline (21), a first branch pipeline (22), a second branch pipeline (23), an injection pipeline (24) and a pipeline switching device (25), the main pipeline (21) is communicated with the gas storage container (1), the first branch pipeline (22) is arranged on the main pipeline (21), and the pipeline switching device (25) is used for conducting the main pipeline (21) and the second branch pipeline (23) or conducting the second branch pipeline (23) and the injection pipeline (24);
a temporary storage device (3) communicated with the first branch (22), wherein the temporary storage device (3) is used for temporarily storing carbon dioxide gas;
an injection device (4) communicating with said second branch (23), said injection device (4) being intended to contain a preset dose of carbon dioxide gas and to inject into said injection line (24).
2. Capnography equipment according to claim 1, characterized in that said conduit switching means (25) comprise a three-way valve (251) and a switch (252), said three-way valve (251) being in communication with said main conduit (21), said second branch (23) and said infusion conduit (24), respectively, said switch (252) being adapted to conduct said main conduit (21) and said second branch (23) or said second branch (23) and said infusion conduit (24).
3. The capnography apparatus according to claim 1, wherein the conduit switching device (25) comprises a two-position three-way solenoid valve communicating with the main conduit (21), the second branch (23) and the injection conduit (24), respectively.
4. Capnography equipment according to claim 1, characterized by further comprising a pressure reducer (5) arranged between the gas storage container (1) and the main line (21), the pressure reducer (5) being adapted to reduce the pressure of carbon dioxide gas.
5. Capnography apparatus according to claim 4, wherein an adjustment knob (51) is provided on the pressure reducer (5), the adjustment knob (51) being used to adjust the flow rate of carbon dioxide gas output by the pressure reducer (5).
6. Capnography equipment according to claim 4, characterized in that it further comprises a sterilizing filter (6) arranged between said pressure reducer (5) and said main line (21), said sterilizing filter (6) being intended to filter bacteria within the carbon dioxide gas.
7. The capnography equipment according to claim 6, further comprising a pressure relief valve (7) arranged between the sterilizing filter (6) and the main pipeline (21), wherein when the pressure of the carbon dioxide gas introduced into the pressure relief valve (7) is greater than a preset pressure, the pressure relief valve (7) is opened, otherwise, the pressure relief valve (7) is closed.
8. Capnography equipment according to claim 1, characterized in that the capacity of the temporary storage means (3) is greater than the capacity of the injection means (4).
9. Capnography equipment according to claim 8, characterized in that said temporary storage means (3) is a syringe; and/or the injection device (4) is a syringe.
10. The capnography apparatus of any one of claims 1-9, further comprising a contrast catheter in communication with the injection line (24), an end of the contrast catheter distal from the injection line (24) being provided with a contrast needle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220169754.XU CN217645618U (en) | 2022-01-21 | 2022-01-21 | Carbon dioxide radiography equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220169754.XU CN217645618U (en) | 2022-01-21 | 2022-01-21 | Carbon dioxide radiography equipment |
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| CN217645618U true CN217645618U (en) | 2022-10-25 |
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| CN202220169754.XU Active CN217645618U (en) | 2022-01-21 | 2022-01-21 | Carbon dioxide radiography equipment |
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| CN (1) | CN217645618U (en) |
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