CN220213639U - Anesthetic gas collection device and anesthetic machine - Google Patents
Anesthetic gas collection device and anesthetic machine Download PDFInfo
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- CN220213639U CN220213639U CN202320763438.XU CN202320763438U CN220213639U CN 220213639 U CN220213639 U CN 220213639U CN 202320763438 U CN202320763438 U CN 202320763438U CN 220213639 U CN220213639 U CN 220213639U
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- 230000001105 regulatory effect Effects 0.000 claims abstract description 44
- 206010002091 Anaesthesia Diseases 0.000 claims abstract description 14
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- 238000004891 communication Methods 0.000 claims description 33
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Abstract
The utility model is applicable to the technical field of medical equipment, and provides an anesthetic gas collecting device, which comprises: the flow regulating valve is provided with a negative pressure input port and a negative pressure output port communicated with the negative pressure input port, and the negative pressure input port is communicated with a negative pressure air source; the flowmeter is provided with a gas input port and a gas output port communicated with the gas input port, and the gas output port is communicated with the negative pressure output port; the gas cache box is communicated with the gas input port; and the waste gas connector is communicated with the flowmeter and the gas cache box and is communicated with a waste gas source, and waste gas flowing from the waste gas source flows to the flowmeter and/or the gas cache box through the waste gas connector. The utility model also provides an anesthesia machine. The anesthetic gas collecting device has a simple structure, wherein the gas buffer box can buffer waste gas and then is subjected to negative pressure extraction treatment, so that the waste gas is prevented from being directly discharged into the atmosphere, the safety is improved, and the waste gas treatment efficiency of an anesthetic machine is improved.
Description
Technical Field
The utility model belongs to the technical field of medical equipment, and particularly relates to an anesthetic gas collecting device and an anesthetic machine.
Background
Anesthesia machines are common medical devices, and during surgery, anesthetic is sent into alveoli of a patient through a mechanical loop to form partial pressure of anesthetic gas, and after the partial pressure of the anesthetic gas is dispersed into blood, the anesthetic gas directly inhibits a central nervous system, so that the effect of general anesthesia is generated. During the operation, the anesthetic gas is generated and discharged into the operating room, and if doctors and nurses absorb the anesthetic gas for a long time, the health is easily affected, so that the treatment of the anesthetic gas is important.
An anesthetic gas purification system (AGSS) is a complete system that connects to the vent of a ventilation system and to other equipment for delivering exhaled or excess anesthetic gas to an appropriate exhaust site, and generally comprises three parts: the purification principle is that waste gas (comprising anesthetic gas, oxygen, carbon dioxide and the like) is discharged from the anesthesia machine respiratory system, the waste gas enters the collection system by utilizing the transmission system, and the waste gas is absorbed and treated by the treatment system.
At present, the waste gas collecting system among the prior art is the structure that highly integrates mostly, and whole part is more, the structure is complicated, is inconvenient for equipment, dismantles, maintenance and test etc. simultaneously, collecting system's inner space is limited, when the waste gas flow of input is great, can not in time handle a large amount of waste gases because of the structural limitation, can lead to the gas circuit to block up and influence waste gas treatment efficiency, still can cause waste gas to leak under certain circumstances, exists certain security risk.
Disclosure of Invention
The embodiment of the utility model provides an anesthetic gas collecting device, which aims to solve the problems that the existing anesthetic gas collecting system has more integral parts and complex structure and is inconvenient to assemble, disassemble, repair and maintain and test.
The embodiment of the utility model is realized in that an anesthetic gas collecting device comprises:
the flow regulating valve is provided with a negative pressure input port and a negative pressure output port communicated with the negative pressure input port, and the negative pressure input port is communicated with a negative pressure air source;
the flowmeter is provided with a gas input port and a gas output port communicated with the gas input port, and the gas output port is communicated with the negative pressure output port;
the gas cache box is communicated with the gas input port; and
and the waste gas connector is communicated with the flowmeter and the gas cache box and is communicated with a waste gas source, and waste gas flowing in from the waste gas source flows to the flowmeter and/or the gas cache box through the waste gas connector.
Still further, the flow regulating valve includes:
the negative pressure inlet and the negative pressure outlet are both arranged on the valve body and are respectively communicated with two ends of the air flow channel; and
the flow regulating part is arranged on the valve body and can move relative to the airflow channel so as to regulate the size of a gap between the flow regulating part and the airflow channel.
Still further, the flow rate adjusting member includes:
the driving part is arranged on the valve body and can move relative to the airflow channel; and
the adjusting part is connected with the driving part and is positioned in the air flow channel, and the driving part can drive the adjusting part to move in the air flow channel so as to adjust the size of a gap between the adjusting part and the air flow channel.
Still further, the flowmeter includes:
the inner diameter of the transparent sleeve is reduced from the top to the bottom, and scale marks are arranged on the transparent sleeve;
the float is arranged in the transparent sleeve, the float is of an axisymmetric structure, the diameter of the float decreases from the top to the bottom, and a gap for gas to pass through is formed between the transparent sleeve and the float.
Further, a U-shaped cavity is formed in the gas cache box;
and an air inlet is arranged on one side of the gas cache box, which is far away from the waste gas connector.
Still further, still be equipped with the waste gas pipe between flowmeter and the gas cache box, the exhaust connector intercommunication waste gas pipe with the gas cache box, the waste gas that flows in from the waste gas source by the exhaust connector flows to the waste gas pipe and/or the gas cache box.
Still further, the exhaust gas joint includes:
the conduit communicating pipe is at least partially inserted into the waste gas conduit and communicated with the waste gas conduit;
the exhaust communicating pipe is arranged on the conduit communicating pipe and communicated with an exhaust source; and
the buffer tank communicating part is positioned in the gas buffer tank and is used for communicating the conduit communicating pipe with the gas buffer tank, and the waste gas flowing in from the waste gas source flows to the conduit communicating pipe and/or the buffer tank communicating part from the waste gas communicating pipe.
Still further, the exhaust crossover tube is inclined relative to the conduit crossover tube.
Further, the buffer tank communication portion has an arc-shaped inner wall and an opening tapered from the exhaust gas joint toward the gas buffer tank.
The embodiment of the utility model also provides an anesthesia machine, which comprises:
a body; and
in the anesthetic gas collecting device, the anesthetic gas collecting device is arranged in the body.
The utility model has the beneficial effects that:
in the anesthetic gas collecting device, the flow rate can be regulated by the flow regulating valve to control the waste gas treatment speed, the flowmeter is communicated with the flow regulating valve to measure the flow rate of waste gas, the flowmeter is communicated with the gas buffer box through the waste gas connector, the waste gas source is communicated with the waste gas connector to enable the waste gas to be supplied into the flowmeter and/or the gas buffer box, the whole anesthetic gas collecting device has fewer parts and relatively simple structure, is convenient to assemble, disassemble, repair, maintain, test and the like, and the gas buffer box can buffer the waste gas and then is subjected to negative pressure extraction treatment, so that the waste gas is prevented from being directly discharged into the atmosphere, the safety is improved, and the waste gas treatment efficiency of the anesthetic machine is improved.
Drawings
FIG. 1 is a schematic perspective view of an anesthetic gas collection device according to an embodiment of the present utility model;
FIG. 2 is another perspective view of an anesthetic gas collection device according to an embodiment of the present utility model;
FIG. 3 is a cross-sectional view of a flow control valve according to an embodiment of the present utility model;
FIG. 4 is a schematic view of a flow regulator according to an embodiment of the present utility model;
FIG. 5 is a cross-sectional view of a flow meter according to an embodiment of the utility model;
FIG. 6 is a schematic view of an exhaust joint according to an embodiment of the present utility model;
fig. 7 is a schematic perspective view of an exhaust fitting according to an embodiment of the present utility model.
Description of main reference numerals:
100. an anesthetic gas collection device;
1. a flow regulating valve; 11. a negative pressure input port; 12. a negative pressure output port; 13. a valve body; 14. a flow rate adjusting member; 141. a driving section; 142. an adjusting section; 2. a flow meter; 21. a gas inlet; 22. a gas outlet; 23. a transparent sleeve; 24. a float; 3. an exhaust gas joint; 31. a conduit communicating tube; 32. an exhaust gas communication pipe; 33. a buffer box communicating part; 331. an arc-shaped inner wall; 4. a gas buffer tank; 41. an air inlet; 5. an exhaust gas conduit.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
According to the anesthetic gas collection device disclosed by the embodiment of the utility model, the flow rate can be regulated by the flow regulating valve to control the waste gas treatment speed, the flowmeter is communicated with the flow regulating valve to measure the flow rate of waste gas, the flowmeter is communicated with the gas cache box through the waste gas connector, the waste gas source is communicated with the waste gas connector to enable the waste gas to be supplied into the flowmeter and/or the gas cache box, and the gas cache box can cache the waste gas and then is subjected to negative pressure extraction treatment.
Example 1
Referring to fig. 1 and 2, an anesthetic gas collecting apparatus 100 according to the present embodiment includes:
the flow regulating valve 1 is provided with a negative pressure input port 11 and a negative pressure output port 12 communicated with the negative pressure input port 11, and the negative pressure input port 11 is communicated with a negative pressure air source;
the flowmeter 2 is provided with a gas input port 21 and a gas output port 22 communicated with the gas input port 21, and the gas output port 22 is communicated with the negative pressure output port 12;
the gas cache box 4, the gas cache box 4 is communicated with the gas input port 21; and
an exhaust gas joint 3, the exhaust gas joint 3 communicates the flow meter 2 and the gas buffer tank 4, and communicates with an exhaust gas source, and the exhaust gas flowing from the exhaust gas source flows from the exhaust gas joint 3 to the flow meter 2 and/or the gas buffer tank 4.
The anesthetic gas collecting device 100 of the embodiment can be applied to an anesthetic gas purifying system, and the anesthetic gas collecting device 100 is mainly aimed at waste of an anesthetic machineThe gas is collected, the waste gas is uniformly collected to a waste gas storage bin, and the waste gas storage bin is communicated with AGSS (Anaesthetic Gas Scavenging System ， An anesthetic gas purification system) and is discharged to the atmosphere after the exhaust gas absorption treatment by the AGSS. Because the waste gas contains anesthetic gas, oxygen, carbon dioxide and the like, if the waste gas of the anesthetic machine is directly discharged into an operating room in the operation process, doctors and nurses can absorb the anesthetic gas for a long time, and the health of people is easily affected, so that the waste gas needs to be collected by adopting the anesthetic gas collecting device 100.
Specifically, the flow regulating valve 1 can be directly communicated with the waste gas storage bin, and a negative pressure pumping device can be adopted for the waste gas storage bin to enable the waste gas storage bin to be in a negative pressure state, so that gas in the waste gas storage bin is negative pressure gas, namely a negative pressure gas source is generated. Of course, the waste gas storage bin can also adopt a manual air pump, a power supply is not needed, the waste gas storage bin is not limited, and the waste gas storage bin can still be used in power failure. In this embodiment, the negative pressure pumping device is used to pump air from the flow regulating valve 1, and a power supply is needed, so that the device can be integrated in the anesthetic gas purifying device, and the device can be highly integrated, so that the whole volume of the anesthetic machine is reduced.
The flow regulating valve 1 is provided with a negative pressure input port 11 and a negative pressure output port 12, the negative pressure input port 11 is communicated with a negative pressure air source, namely, the negative pressure input port 11 is connected with a negative pressure pumping device, when the negative pressure pumping device works, the negative pressure output port 12 is communicated with a gas output port 22 of the flowmeter 2, and gas in the flowmeter 2 flows to the negative pressure input port 11 through the negative pressure pumping device until being discharged into the waste gas storage bin.
For the cooperation flow control valve 1 adjusts to the circulation large-traffic waste gas, flowmeter 2 adopts heavy-calibre flowmeter 2 for when needs increase negative pressure extraction waste gas, the range of flowmeter 2 can satisfy the large-traffic waste gas and pass through, can promote the efficiency of handling waste gas.
It is understood that the flow rate regulating valve 1 refers to a valve that regulates the speed of pumping negative pressure gas through the flow rate regulating valve 1; the flow meter 2 is used to observe and measure the flow rate regulated by the flow regulating valve 1.
In this embodiment, the exhaust gas connector 3 is not only communicated with the exhaust gas source of the anesthesia machine, but also respectively communicated with the flowmeter 2 and the gas buffer tank 4, wherein the exhaust gas connector 3 is communicated with the gas input port 21 of the flowmeter 2 and the gas buffer tank 4, the gas output port 22 of the flowmeter 2 is communicated with the flow regulating valve 1, and when the exhaust gas connector 3 supplies the exhaust gas, the exhaust gas can enter the gas buffer tank 4 and/or the flowmeter 2.
The flow of exhaust gas from the exhaust gas source from the exhaust gas connection 3 to the flow meter 2 and/or the gas buffer tank 4 means that the exhaust gas may flow to the flow meter 2, to the gas buffer tank 4, or to both the flow meter 2 and the gas buffer tank 4.
When the flow of the waste gas input by the waste gas source is smaller than the negative pressure pumping flow of the negative pressure pumping device, the waste gas is directly pumped by the negative pressure and totally flows to the flowmeter 2, and is discharged to a waste gas storage bin through the flow regulating valve 1; in some possible cases, if the passage of the exhaust gas connector 3 into the gas cache box 4 extends into the gas cache box 4, the exhaust gas can flow into the gas cache box 4 all first, and then is pumped to the flowmeter 2 by the pumping negative pressure and finally discharged to the exhaust gas storage bin.
When the flow of the waste gas input by the waste gas source is larger than the negative pressure pumping flow of the negative pressure pumping device, part of the waste gas can be directly pumped into the waste gas storage bin, and the other part of the waste gas can enter the gas cache box 4 for temporary cache, so that the treatment efficiency of the waste gas source is improved, and the waste gas can be prevented from being directly discharged into the atmosphere to influence the health of operators; when the flow of the exhaust gas input by the exhaust gas source is gradually reduced to be smaller than the negative pressure pumping flow of the negative pressure pumping device, the negative pressure pumping device simultaneously pumps and discharges the exhaust gas just input by the exhaust gas source and the exhaust gas in the gas storage bin 4 to the exhaust gas storage bin, so that the exhaust gas in the gas storage bin 4 is gradually pumped and pumped out by negative pressure pumping.
In this embodiment, the exhaust gas is preferentially extracted to flow to the flow meter 2.
In the anesthetic gas collection device 100 of this embodiment, the flow rate is adjusted to accessible flow control valve 1 and the waste gas treatment rate is controlled, flowmeter 2 and flow control valve 1 intercommunication are used for measuring the flow of waste gas, and flowmeter 2 passes through waste gas connector 3 and gas buffer tank 4 intercommunication, waste gas source intercommunication waste gas connector 3 makes waste gas can supply into flowmeter 2 and/or gas buffer tank 4, the holistic part of anesthetic gas collection device 100 is less, simple structure, be convenient for assemble, dismantle, maintenance and test etc., gas buffer tank 4 can buffer the waste gas, then by negative pressure extraction processing, avoid waste gas direct emission to the atmosphere in, promote the security, and promote the waste gas treatment efficiency of anesthesia machine.
In this embodiment, the flow regulating valve 1, the flow meter 2, the gas buffer tank 4 and the exhaust gas connector 3 may be made of corrosion-resistant plastics, for example, PTFE materials, so that the cost can be greatly reduced and the weight of the anesthetic gas collecting device 100 can be reduced.
Example two
Referring to fig. 2 to 4, the flow rate regulating valve 1 of the present embodiment includes: the valve body 13, the valve body 13 is internally provided with an air flow channel 131, and the negative pressure input port 11 and the negative pressure output port 12 are both arranged on the valve body 13 and are respectively communicated with two ends of the air flow channel 131; and the flow regulating piece 14, the flow regulating piece 14 is arranged on the valve body 13 and can move relative to the air flow channel 131 so as to adjust the size of a gap between the flow regulating piece and the air flow channel 131.
In this embodiment, the flow regulating valve 1 may be a cone valve, where the valve body 13 is approximately cylindrical, an airflow channel 131 is formed inside the valve body 13, the airflow channel 131 is mutually communicated with the atmosphere, two channel ports are formed at two ends of the airflow channel 131, specifically, one channel port is the negative pressure input port 11, and one channel port is the negative pressure output port 12.
In some embodiments, since the valve body 13 is mainly used to open the air flow channel 131 to allow the exhaust gas to pass through, the valve body 13 may also have other shapes, such as a cuboid, a cube, a prism, a pyramid, or other irregular shapes, which are not limited herein.
The negative pressure input port 11 is communicated with a negative pressure pumping device, when exhaust gas is pumped, the exhaust gas enters the airflow channel 131 from the negative pressure output port 12 and flows to the negative pressure input port 11, and the negative pressure input port 11 can be communicated with the exhaust gas storage bin, so that the exhaust gas is discharged into the exhaust gas storage bin through the negative pressure input port 11 to be collected together.
Further, a regulating channel is further provided in the valve body 13, the flow regulating member 14 can move along the inner wall of the regulating channel, the regulating channel is communicated with the air flow channel 131, a channel opening at one end of the regulating channel connected with the air flow channel 131 is a flow regulating opening, and the flow regulating member 14 can pass through the flow regulating opening to enter the air flow channel 131 and move relative to the air flow channel 131.
In this way, the gap between the flow regulator 14 and the air flow channel 131 can be adjusted by adjusting the distance that one end of the flow regulator 14 enters the air flow channel 131, so as to adjust the air flow between the negative pressure input port 11 and the negative pressure output port 12.
Specifically, in this embodiment, the larger the gap between the flow regulator 14 and the airflow channel 131, the larger the flow of the exhaust gas during negative pressure pumping, so as to accelerate exhaust of the exhaust gas, improve the efficiency of exhaust gas treatment, otherwise, the smaller the flow of the exhaust gas during negative pressure pumping, so as to reduce the burden of the negative pressure pumping device.
Example III
Referring to fig. 1 to 4, the flow regulator 14 of the present embodiment includes: a driving part 141, the driving part 141 is arranged on the valve body 13 and can move relative to the airflow channel 131; and the adjusting part 142 is connected with the driving part 141 and is positioned in the air flow channel 131, and the driving part 141 can drive the adjusting part 142 to move in the air flow channel 131 so as to adjust the size of a gap between the adjusting part 142 and the air flow channel 131.
Specifically, the flow rate adjusting member 14 includes a driving portion 141 and an adjusting portion 142, and the driving portion 141 and the adjusting portion 142 in the present embodiment adopt an integral structure, enhancing the strength of the flow rate adjusting member 14.
In this embodiment, the valve body 13 is provided with an adjusting channel, and a flow adjusting port of the adjusting channel is disposed opposite to the negative pressure output port 12, so that when the driving portion 141 moves along an inner wall of the adjusting channel toward the negative pressure output port 12, the adjusting portion 142 can pass through the flow adjusting port to enter the air flow channel 131, so as to adjust a gap between the negative pressure output port 12 and the adjusting portion 142, thereby adjusting a flow of the exhaust gas.
Specifically, the driving part 141 may be pushed forward by applying pressure to the driving part 141, so that the adjusting part 142 completely blocks the negative pressure output port 12 to close the exhaust gas, and the adjusting part 142 may be pulled out by hand by the driving part 141 until the flow adjusting port is pulled out, at this time, the gap between the negative pressure output port 12 and the negative pressure input port 11 is the largest, and the speed of exhausting the negative pressure exhaust gas is the fastest.
The gap between the negative pressure output port 12 and the negative pressure input port 11 can be adjusted by pushing the driving part 141 forward or pulling the driving part 141 backward, but it is needless to say that the gap can also be adjusted by rotating the driving part 141, and the gap can be adjusted by slowly rotating the driving part 141 into or out of the manual control driving part 141, so that the specified position to be reached by the adjusting part 142 can be easily controlled, and the exhaust gas flow can be more accurately adjusted.
Specifically, in this embodiment, the adjusting portion 142 is substantially in a shape of a circular truncated cone, so that the adjusting portion 142 can extend into the airflow channel 131, and the flow adjusting opening is in a shape of a circular hole, so that the adjusting portion 142 can conveniently enter. When the adjusting portion 142 extends into the air flow channel 131, the exhaust gas can pass through the air flow channel 131 along the outer wall of the adjusting portion 142 due to the arc surface of the adjusting portion 142, so that the impact force of the exhaust gas on the adjusting portion 142 can be reduced.
In addition, in order to prevent exhaust gas from leaking out of the adjustment passage, a sealing groove is provided between the driving part 141 and the adjustment passage, and a gasket is provided in the sealing groove to seal the air flow passage 131, thereby improving safety.
Example IV
Referring to fig. 1 to 2 and 5, the flow meter 2 of the present embodiment includes: the inner diameter of the transparent sleeve 23 is reduced from the top to the bottom, and scale marks are arranged on the transparent sleeve 23; the float 24, the float 24 is installed in transparent sleeve 23, the float 24 is axisymmetric structure, its diameter is decreasing from top to bottom, and be equipped with the clearance that supplies the gas to pass through between transparent sleeve 23 and the float 24.
Thus, the transparent sleeve 23 is not required to be provided with a guide rail, the float 24 is arranged to be in an axisymmetric structure, at this time, the pipeline opening at the lower end of the transparent sleeve 23 is aligned with the lower end of the float 24 for purging, so that the float 24 can stably rise, and meanwhile, the float is not contacted with the inner wall of the transparent sleeve 23, and the accuracy of the flowmeter 2 can be improved. Meanwhile, the flowmeter 2 of the embodiment has a simple structure, fewer component parts and is convenient for assembly production, test and overhaul.
In this embodiment, the inner wall of the transparent sleeve 23 is in a truncated cone shape, and the cross-sectional area of the top end of the inner wall of the transparent sleeve 23 is larger than the cross-sectional area of the inner wall of the bottom end.
The inner side wall of the transparent sleeve 23 of this embodiment is arranged perpendicular to the horizontal plane, and scale marks are provided on the side wall. Specifically, by providing the transparent sleeve 23 with the graduation marks, the numerical positions of the graduation marks are related to the shape and weight of the float 24, and when the float 24 is in a dynamic balance state, a user can intuitively obtain the flow value of the gas flowing through the transparent sleeve 23 by observing the graduation marks corresponding to the positions of the top end of the float 24. Meanwhile, the inner diameter of the transparent sleeve 23 is reduced from the top to the bottom, so that the transparent sleeve can be suitable for measuring cylinders with different measuring ranges, and the application range of the flowmeter 2 is effectively enlarged.
Specifically, the float 24 has an axisymmetric structure, and the diameter of the float 24 decreases from the top to the bottom, so that the float 24 is uniformly stressed in the floating process, and is kept in a vertical state in the floating process in the transparent sleeve 23, thereby ensuring the accuracy of the measured value.
In this embodiment, when the float 24 is installed, the transparent sleeve 23 is vertically installed, a gap for gas to pass through is provided between the inner wall of the transparent sleeve 23 and the float 24, and when the gap between the outer wall of the float 24 and the inner wall of the transparent sleeve 23 is larger, the gas flow in the transparent sleeve 23 can be larger, so that the longer the gas flow range can be supported for monitoring, the wider the application range can be.
The lower end of the transparent sleeve 23 is connected with a gas pipeline, and the upper end is connected with a negative pressure device, at this time, as shown in fig. 2, the pipeline opening at the lower end of the transparent sleeve 23 is aligned with the float 24, so that the gas is directly purged to the lower end of the float 24, and the float 24 can be stably lifted.
When the negative pressure device sucks the gas output by the gas pipeline and flows through the flowmeter 2, the gas flows from the lower end to the upper end of the transparent sleeve 23, the outer wall of the float 24 plays a role in guiding the flowing direction of the gas, and meanwhile, under the purging action of the gas, a pressure difference force is generated between the outer wall of the float 24 and the inner wall of the transparent sleeve 23, so that the float 24 can float up and down in the transparent sleeve 23 against the action of gravity.
When the differential pressure force and gravity borne by the float 24 reach dynamic balance at a certain position where the float 24 rises into the transparent sleeve 23, the position where the top end of the float 24 is located is the flow value of the gas flowing through the transparent sleeve 23, so that the flow of the gas flowing through the transparent sleeve 23 is monitored in real time.
In other embodiments, the float 24 may further be provided with an eccentric structure, a first annular flange and a second annular flange spaced from the first annular flange, wherein when the float 24 is installed in the transparent sleeve 23, the eccentric structure forms an included angle between the central axis of the float 24 and the central axis of the transparent sleeve 23, so that the first annular flange on the heavier side of the float 24 is abutted against the inner wall of the transparent sleeve 23, and the second annular flange on the lighter side is also abutted against the inner wall of the transparent sleeve 23. When the bottom of the float 24 slides relative to the transparent sleeve 23 under the pressure of the exhaust gas, the float 24 slides upward in a state where both side walls are inclined and abut against the inner wall of the transparent sleeve 23, so that the float 24 rises more smoothly.
Further, since the float 24 is inclined and both side walls are in contact with the inner wall of the transparent sleeve 23, the flowmeter 2 can be vertically installed or inclined without affecting the result of measurement data of the flowmeter 2, and thus, the float can be applied to a case where the height of the installation space of the anesthesia machine is insufficient.
Example five
Referring to fig. 1 to 2, a U-shaped cavity is formed in the gas cache tank 4 of the present embodiment; the gas buffer tank 4 is provided with an air inlet 41 on the side remote from the exhaust gas connection 3.
Specifically, the gas buffer tank 4 in the present embodiment is substantially U-shaped so that a U-shaped cavity is naturally formed inside thereof, and an end portion of one end of the gas buffer tank 4 is connected to the exhaust gas joint 3.
Because waste gas is taken out from the gas cache box 4 through negative pressure pumping, in order to avoid that the gas cache box 4 is vacuumized by the negative pressure pumping device and the flow of waste gas is influenced, the other end of the gas cache box 4 is provided with an air inlet 41, the air inlet 41 and the waste gas connector 3 are respectively positioned at two ends of the gas cache box 4, an air channel can be prolonged, the flow speed of the waste gas is delayed, and the waste gas is prevented from flowing out to the atmosphere too quickly.
Waste gas enters the cavity from one end of the U-shaped cavity, at the moment, the waste gas needs to sink to the bottom of the U-shaped cavity and can flow to the other end of the U-shaped cavity, and the inner wall of the U-shaped cavity can block the flow of the waste gas, so that the flow rate of the waste gas can be delayed, the waste gas can not directly flow out of the gas cache box 4 from the air inlet 41 at the other end, and the cache effect of the gas cache box 4 is better.
Example six
Referring to fig. 1 and 2, an exhaust gas conduit 5 is further disposed between the flowmeter 2 and the gas buffer tank 4 in the present embodiment, and the exhaust gas connector 3 is connected to the exhaust gas conduit 5 and the gas buffer tank 4, so that the exhaust gas flowing from the exhaust gas source flows from the exhaust gas connector 3 to the exhaust gas conduit 5 and/or the gas buffer tank 4.
In this embodiment, the exhaust gas connector 3 is inserted in the gas buffer tank 4 and is communicated with the gas buffer tank 4, and the exhaust gas connector 3 is communicated with the flowmeter 2 through the exhaust gas conduit 5, so that the exhaust gas flowing in from the exhaust gas source flows to the exhaust gas conduit 5 and/or the gas buffer tank 4 through the exhaust gas connector 3.
Specifically, the flow meter 2 can be installed vertically with ease by communicating the exhaust fitting 3 with the flow meter 2 through the exhaust gas conduit 5. Since the flowmeter 2 employed in the present embodiment is not provided with the guide rail for sliding the float 24 therein, the float 24 has an axisymmetric structure, and when the exhaust gas is purged from the lower end of the flowmeter 2 toward the lower direction of the float 24, the flow rate of the exhaust gas is measured by floating the float 24 up and down in the transparent sleeve 23 against the gravity thereof, and therefore the flowmeter 2 employed in the present embodiment must be vertically arranged.
The waste gas conduit 5 is adopted to connect, so that gas transmission can be realized, the installation position of the flowmeter 2 is not limited, and when the installation position near the gas buffer tank 4 of the anesthesia machine is insufficient, the waste gas conduit 5 can be installed on the space where the flowmeter 2 can be installed, so that the position connection between the flowmeter 2 and the buffer tank is more flexible. In addition, the flowmeter 2 and the flow regulating valve 1 can be connected and conducted by adopting a conduit, so that the flexibility of assembling and connecting the collection system of the anesthesia machine can be further improved.
Example seven
Referring to fig. 1, 6 and 7, the exhaust gas connector 3 of the present embodiment includes: the conduit communicating pipe 31, the conduit communicating pipe 31 of the flowmeter 2 is at least partially inserted into the waste gas conduit 5 of the flowmeter 2 and communicated with the waste gas conduit 5 of the flowmeter 2; an exhaust gas communicating pipe 32, the flowmeter 2 exhaust gas communicating pipe 32 is arranged on the flowmeter 2 conduit communicating pipe 31 and communicated with an exhaust gas source; and a buffer tank communication portion 33, wherein the buffer tank communication portion 33 of the flowmeter 2 is located in the gas buffer tank 4 of the flowmeter 2, and communicates the conduit communication pipe 31 of the flowmeter 2 with the gas buffer tank 4 of the flowmeter 2, and the exhaust gas flowing from the exhaust gas source flows from the exhaust gas communication pipe 32 of the flowmeter 2 to the conduit communication pipe 31 of the flowmeter 2 and/or the buffer tank communication portion 33 of the flowmeter 2.
Specifically, the exhaust gas joint 3 is provided with three pipes communicating with each other to communicate with the exhaust gas source, the exhaust gas conduit 5, and the gas buffer tank 4, respectively, the conduit communicating pipe 31, the exhaust gas communicating pipe 32, and the buffer tank communicating portion 33, respectively. Preferably, the conduit communication pipe 31, the exhaust gas communication pipe 32 and the buffer tank communication part 33 are integrated, and have complete structure, so that the leakage of exhaust gas from gaps can be avoided.
Wherein, one end of the conduit communicating tube 31 is communicated with the exhaust conduit 5, the end part is inserted into the exhaust conduit, and the conduit communicating tube 31 and the exhaust conduit 5 can be firmly installed through interference fit; the exhaust gas communicating tube 32 is provided at a side of the duct communicating tube 31 and communicates with an exhaust gas source; the tank communicating portion 33 is also provided on the side surface of the pipe communicating pipe, and is integrally inserted into the gas tank 4 to communicate with the gas tank 4.
In the present embodiment, the diameter of the conduit communication pipe 31 is larger than that of the exhaust communication pipe 32, so that the exhaust gas can be rapidly pumped away by the negative pumping pressure when the exhaust gas is introduced into the exhaust gas joint 3, so as not to excessively flow into the gas buffer tank 4 to be discharged to the atmosphere from the air inlet 41.
Example eight
Referring to fig. 6 and 7, the exhaust gas communication tube 32 of the present embodiment is inclined with respect to the conduit communication tube 31.
In this embodiment, the exhaust gas communicating tube 32 is a hollow cylinder, the conduit communicating tube 31 is also a hollow cylinder, and the exhaust gas communicating tube 32 is inclined relative to the conduit communicating tube 31, i.e. the central axis of the exhaust gas communicating tube 32 and the central axis of the conduit communicating tube 31 are disposed at an included angle, and are not perpendicular to each other. Specifically, the central axis of the exhaust gas communicating tube 32 and the central axis of the catheter communicating tube 31 may form an included angle of 30 °, 45 ° or 60 °, and the like, and may be specifically designed according to actual requirements, which is not limited herein.
Specifically, as shown in fig. 6, the opening orientations of the conduit communication pipe 31 and the buffer tank communication portion 33 are opposite, the gas buffer tank 4 is located below the conduit communication pipe 31, and the buffer tank communication portion 33 is fitted into the gas buffer tank 4. When the exhaust gas joint 3 is mounted on the gas cache tank 4 with the opening of the conduit communication pipe 31 facing upward, the exhaust gas communication pipe 32 is inclined from top to bottom, i.e., its opening is directed toward the gas cache tank 4.
Of course, in some embodiments, the exhaust gas communication tube 32 may also be inclined from bottom to top, i.e., with its opening directed toward the exhaust gas conduit 5, so that exhaust gas can more readily enter the exhaust gas communication tube 32.
In the present embodiment, the exhaust gas joint 3, which is disposed obliquely from top to bottom using the exhaust gas communication pipe 32, is mounted on the gas cache tank 4. The exhaust gas pipeline is communicated with an exhaust gas source, when a large amount of exhaust gas is input from the exhaust gas source, the exhaust gas can enter the gas cache box 4 more because the opening of the exhaust gas pipeline faces the gas cache box 4, so that the burden of negative pressure pumping is reduced, and the arrangement of the structure of the exhaust connector 3 and the communication with the exhaust gas source are more convenient.
Example nine
With continued reference to fig. 6 and 7, the buffer tank communication portion 33 of the present embodiment has an arc-shaped inner wall 331 and an opening that taper from the exhaust gas connector 3 toward the gas buffer tank 4.
Specifically, the arcuate inner wall 331 of the tank communication portion 33 tapers from one end to the other end, which communicates with the exhaust gas communication tube 32, as shown in fig. 6, i.e., tapers from top to bottom. Meanwhile, the arc-shaped inner wall 331 has an opening, and the shape of the opening matches that of the arc-shaped inner wall 331, that is, the buffer tank communicating portion 33 is opened to increase the contact area with the gas buffer tank 4.
The open side of the buffer container communication portion 33 faces the gas buffer container 4, so that the opening area of the buffer container communication portion 33 communicated with the gas buffer container 4 can be increased, waste gas can enter the gas buffer container 4 more quickly, the pressure of the negative pressure pumping device is further reduced, and the waste gas pumping can be accelerated.
Examples ten
Referring to fig. 1 and 2, an anesthesia machine according to an embodiment of the utility model includes:
a body; and
the anesthetic gas collection device 100 is provided in the body, and the anesthetic gas collection device 100 is provided in the body.
The anesthesia machine in this embodiment is a respiratory anesthesia machine, the anesthetic gas collection device 100 is installed in the machine body, in the anesthetic gas collection device 100, the flow rate is adjusted by the flow regulating valve 1 to control the waste gas treatment speed, the flow meter 2 is communicated with the flow regulating valve 1 to be used for measuring the flow rate of waste gas, and the flow meter 2 is communicated with the gas buffer tank 4 through the waste gas connector 3, the waste gas source is communicated with the waste gas connector 3 to enable waste gas to be supplied into the flow meter 2 and/or the gas buffer tank 4, the whole part of the anesthetic gas collection device 100 is fewer, the structure is simple, the assembly, the disassembly, the maintenance and the testing are convenient, the gas buffer tank 4 can buffer the waste gas, then the waste gas is extracted by negative pressure, the waste gas is prevented from being directly discharged into the atmosphere, the safety is improved, and the waste gas treatment efficiency of the anesthesia machine is improved.
Meanwhile, in the anesthetic gas collecting device 100, the flowmeter 2 is communicated with the gas cache box 4, the flowmeter 2 is communicated with the flow regulating valve 1 through a pipeline, and the negative pressure gas source is communicated with the flow regulating valve 1 and the waste gas source is communicated with the waste gas connector 3 through a pipeline, so that the system is more convenient and flexible to connect, the system is more convenient to install and integrate in a body of an anesthetic machine, and the integrity of the anesthetic machine is improved.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (9)
1. An anesthetic gas collecting device, comprising:
the flow regulating valve is provided with a negative pressure input port and a negative pressure output port communicated with the negative pressure input port, and the negative pressure input port is communicated with a negative pressure air source;
the flowmeter is provided with a gas input port and a gas output port communicated with the gas input port, and the gas output port is communicated with the negative pressure output port;
the gas cache box is communicated with the gas input port; and
the waste gas connector is communicated with the flowmeter and the gas cache box and is communicated with a waste gas source, and waste gas flowing in from the waste gas source flows to the flowmeter and/or the gas cache box through the waste gas connector;
the flowmeter includes:
the inner diameter of the transparent sleeve is reduced from the top to the bottom, and scale marks are arranged on the transparent sleeve;
the float is arranged in the transparent sleeve, the float is of an axisymmetric structure, the diameter of the float decreases from the top to the bottom, and a gap for gas to pass through is formed between the transparent sleeve and the float.
2. The anesthetic gas collection device according to claim 1, wherein the flow rate adjustment valve comprises:
the negative pressure inlet and the negative pressure outlet are both arranged on the valve body and are respectively communicated with two ends of the air flow channel; and
the flow regulating part is arranged on the valve body and can move relative to the airflow channel so as to regulate the size of a gap between the flow regulating part and the airflow channel.
3. The anesthetic gas collection device as claimed in claim 2, wherein the flow regulator comprises:
the driving part is arranged on the valve body and can move relative to the airflow channel; and
the adjusting part is connected with the driving part and is positioned in the air flow channel, and the driving part can drive the adjusting part to move in the air flow channel so as to adjust the size of a gap between the adjusting part and the air flow channel.
4. The anesthetic gas collection device according to claim 1, wherein a U-shaped cavity is formed in the gas buffer tank;
and an air inlet is arranged on one side of the gas cache box, which is far away from the waste gas connector.
5. The anesthetic gas collection device according to claim 1, wherein an exhaust gas conduit is further provided between the flowmeter and the gas buffer tank, the exhaust gas joint communicates the exhaust gas conduit with the gas buffer tank, and exhaust gas flowing from an exhaust gas source flows from the exhaust gas joint to the exhaust gas conduit and/or the gas buffer tank.
6. The anesthetic gas collection device as recited in claim 5, wherein the exhaust gas joint comprises:
the conduit communicating pipe is at least partially inserted into the waste gas conduit and communicated with the waste gas conduit;
the exhaust communicating pipe is arranged on the conduit communicating pipe and communicated with an exhaust source; and
the buffer tank communicating part is positioned in the gas buffer tank and is used for communicating the conduit communicating pipe with the gas buffer tank, and the waste gas flowing in from the waste gas source flows to the conduit communicating pipe and/or the buffer tank communicating part from the waste gas communicating pipe.
7. The anesthetic gas collection device as claimed in claim 6, wherein the exhaust gas communication tube is inclined with respect to the conduit communication tube.
8. The anesthetic gas collection device as claimed in claim 6, wherein the buffer tank communication portion has an arc-shaped inner wall and an opening tapered from the exhaust gas joint toward the gas buffer tank.
9. An anesthesia machine, comprising:
a body; and
the anesthetic gas collecting apparatus according to any one of claims 1 to 8, wherein the anesthetic gas collecting apparatus is provided in the body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320763438.XU CN220213639U (en) | 2023-03-31 | 2023-03-31 | Anesthetic gas collection device and anesthetic machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320763438.XU CN220213639U (en) | 2023-03-31 | 2023-03-31 | Anesthetic gas collection device and anesthetic machine |
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| CN220213639U true CN220213639U (en) | 2023-12-22 |
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| CN202320763438.XU Active CN220213639U (en) | 2023-03-31 | 2023-03-31 | Anesthetic gas collection device and anesthetic machine |
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| CN (1) | CN220213639U (en) |
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