Disposable anesthesia breathing filter with resuscitation function

Abstract

The utility model belongs to the field of medical instruments for surgical operations, and relates to a disposable anesthesia breathing filter with a resuscitation function, which comprises a shell, a filter component and a resuscitation component, a first partition plate and a second partition plate are arranged on the upper portion and the lower portion in the shell respectively and divide the interior of the shell into an air inlet channel, a filtering channel and an air outlet channel which are sequentially communicated. The filter assembly comprises a flow deflector and a carbon dioxide absorption medium; the flow deflector is spirally mounted in the filtering channel; the carbon dioxide absorption medium is filled in a space formed by the flow deflector and the filtering channel; the recovery assembly comprises an activated carbon box; the activated carbon box is slidably installed in the air inlet channel and can communicate with the air inlet channel and the filtering channel. The carbon dioxide recovery device not only can effectively neutralize carbon dioxide, but also has a recovery function, so that a postoperative patient can be quickly awakened; in addition, the anesthesia breathing filter further has the advantages of being compact in structure, safe, environmentally friendly, easy to operate and the like.

Description

Technical Field

[0001] The utility model belongs to the field of medical devices for surgical operations, and relates to a disposable anesthesia breathing filter with a resuscitation function. Background Art

[0002] Anesthesia refers to a reversible functional inhibition of the central nervous system and / or the peripheral nervous system caused by drugs or other methods. The main characteristic of this inhibition is to make people lose the sense of pain. Anesthesia usually includes general anesthesia and local anesthesia. General anesthesia refers to the process of making the anesthetic enter the body through inhalation, intravenous injection, intramuscular injection or rectal perfusion, so that the central nervous system is inhibited, resulting in the patient losing consciousness and having no pain sensation all over the body. At present, the most commonly used general anesthesia method is tracheal intubation general anesthesia, which is characterized by using intravenous anesthetics or inhaled anesthetics to produce general anesthesia, and tracheal intubation and mechanical assisted ventilation are required during the operation.

[0003] The ventilation of modern anesthesia machines uses a closed-loop circulation circuit to continuously provide anesthetics to patients and remove CO2 from the gas, so that the gas can be recycled. Specifically, during the respiratory cycle, the anesthesia machine transports a mixed gas formed by oxygen, air and anesthetic gas to the patient through the intake pipeline to achieve the purpose of inhaled anesthesia, and the gas exhaled by the patient then enters the carbon dioxide absorption tank inside the anesthesia machine through the outlet pipeline to neutralize and remove CO2 from the gas.

[0004] However, the above gas circulation method has the following defects: (1) During the process of filling the carbon dioxide absorption medium into the carbon dioxide absorption tank, it is easy to cause pollution of the operating room environment by the carbon dioxide absorption medium dust, and it is also easy to cause air leakage in the circuit due to the replacement of the carbon dioxide absorption medium, resulting in insufficient gas volume delivered to the patient, affecting ventilation and failing to achieve the anesthetic effect, which will cause harm to the patient. At the same time, the leaked gas will also pollute the environment; (2) The carbon dioxide absorption tank is prone to form a "short-circuit effect", so that some carbon dioxide absorption media need to be replaced before they are fully reacted, resulting in waste of the carbon dioxide absorption medium; (3) Incomplete neutralization reaction of CO2 in the carbon dioxide absorption tank will cause CO2 accumulation, leading to respiratory acidosis in patients; (4) After the operation, due to the residual effect of the drug, the patient cannot wake up quickly and extubate the trachea quickly.

[0005] Therefore, it is necessary to provide a safe, environmentally friendly, easy-to-operate anesthesia breathing filter with a resuscitation effect. Summary of the Utility Model

[0006] The technical problem to be solved by the utility model is to provide a disposable anesthesia breathing filter with a resuscitation function that is safe, environmentally friendly, easy to operate and has a resuscitation effect.

[0007] The technical solution adopted by the present utility model is: a disposable anesthetic breathing filter with a resuscitation function, which includes a housing and a filtering component and a resuscitation component accommodated in the housing;

[0008] A first partition and a second partition are respectively arranged in the upper and lower parts of the housing, dividing the interior of the housing into an air inlet channel, a filtering channel and an air outlet channel that are sequentially communicated; an air inlet is provided on the side wall of the air inlet channel; an air outlet is provided on the side wall of the air outlet channel;

[0009] The filtering component includes a guide vane and a carbon dioxide absorption medium; the guide vane is spirally installed in the filtering channel; the carbon dioxide absorption medium is filled in the space formed by the guide vane and the filtering channel;

[0010] The resuscitation component includes an activated carbon box; the activated carbon box is slidably installed in the air inlet channel, and the activated carbon box can communicate the air inlet channel and the filtering channel.

[0011] The above-mentioned disposable anesthetic breathing filter with a resuscitation function has two working states:

[0012] During the operation, the gas exhaled by the patient enters the filtering channel through the air inlet channel, and the gas after neutralizing CO2 enters the air outlet channel and finally flows back to the patient's breathing circuit; in this way, the carbon dioxide absorption medium can continuously react with carbon dioxide to effectively filter out carbon dioxide;

[0013] After the operation is completed and the patient needs to be quickly awakened, the gas enters from the air inlet channel, passes through the activated carbon box, and the activated carbon in the activated carbon box adsorbs the anesthetic drug in the gas. Subsequently, the gas passes through the filtering channel and the air outlet channel in sequence and finally flows back to the patient's breathing circuit; in this way, the inhaled anesthetic in the patient's breathing circuit will be quickly reduced, so as to achieve the rapid awakening of the patient.

[0014] Further, the guide vane is a spiral blade, and the guide vane is fixed in the filtering channel through a screw integrally connected to the spiral blade; the number of blades of the spiral blade is at least two, and the outer edge of the spiral blade fits with the inner wall of the filtering channel.

[0015] Further, the carbon dioxide absorption medium is soda lime and / or calcium lime particles.

[0016] Further, the filtering component further includes a first filter element and a second filter element; the first filter element is arranged at one end of the filtering channel close to the air inlet channel, and the second filter element is arranged at one end of the filtering channel close to the air outlet channel; the guide vane is arranged between the first filter element and the second filter element.

[0017] Further, the first filter element and the second filter element are the same or different, and are both medical non-woven fabric or medical sponge.

[0018] Further, the activated carbon box is coaxially and slidably connected to the air inlet passage; the activated carbon box has two positions in the air inlet passage: a locked position and a working position. The locked position is far from the air inlet of the air inlet passage. An air inlet through hole is provided in the part of the first partition corresponding to the working position, and the diameter of the air inlet through hole is smaller than the length of the activated carbon box; initially, the activated carbon box is fixed at the locked position by a blocking piece fixed in the air inlet passage; sliding the activated carbon box to push open the blocking piece and moving to the working position, the gas entering the air inlet passage enters the filter passage through the activated carbon box.

[0019] Further, a sliding switch is provided on the activated carbon box; a sliding groove extending along the axis direction of the air inlet passage is provided at the top end of the housing; the sliding switch extends out from the sliding groove.

[0020] Further, a plurality of small holes are provided on both the side of the activated carbon box facing the air inlet of the air inlet passage and the side facing the air inlet through hole.

[0021] Further, the housing is of a cylindrical hollow structure; the first partition and the second partition are both adapted to the inner wall of the housing and are fixedly connected as a whole; the length of the activated carbon box is L, where d < L < D - d, where D is the inner diameter of the filter passage and d is the diameter of the air inlet through hole.

[0022] Further, an air outlet through hole is provided on the second partition; the air inlet through hole and the air outlet through hole are the same or different in diameter, and are both greater than 0 and less than 0.5 times the inner diameter of the filter passage.

[0023] The utility model has the following beneficial effects:

[0024] 1. The utility model is a disposable external anesthesia breathing filter with a resuscitation function, which can be directly connected in series to the patient's breathing circuit, no longer requires filling the carbon dioxide absorption medium into the original carbon dioxide absorption canister of the anesthesia machine, avoids the pollution of the operating room environment by the dust of the carbon dioxide absorption medium, protects medical staff and the operating environment, and at the same time avoids the leakage of the circuit caused by replacing the carbon dioxide absorption medium;

[0025] 2. The filter passage of the utility model adopts a spiral guide vane, which can increase the contact time between the patient's exhaled gas and the carbon dioxide absorption medium, so that the carbon dioxide absorption medium and the carbon dioxide exhaled by the patient can fully react, avoiding the "short - circuit effect";

[0026] 3. The utility model further adds a filter element that can filter bacteria and viruses, which can prevent the transmission of pathogenic microorganisms between the anesthesia machine and the patient to protect the patient;

[0027] 4. The present utility model adds an activated carbon box. When it is necessary for the postoperative patient to wake up as soon as possible, this function is activated to adsorb the inhaled anesthetic in the patient's breathing circuit and accelerate the patient's waking up. Description of the Drawings

[0028] Figure 1 FIG. is a schematic structural view of the disposable anesthetic breathing filter with a resuscitation function of the present utility model in a filtering state;

[0029] Figure 2 FIG. is a schematic structural view of the disposable anesthetic breathing filter with a resuscitation function of the present utility model in a resuscitation state;

[0030] Figure 3 FIG. is a schematic structural view of the activated carbon box.

[0031] Reference numerals: 1, housing; 11, first partition; 111, intake through hole; 12, second partition; 121, outlet through hole; 13, intake channel; 14, filtering channel; 15, outlet channel; 16, intake port; 17, outlet port; 18, sliding groove; 2, filtering assembly; 21, guide vane; 22, screw; 23, first filter element; 24, second filter element; 3, resuscitation assembly; 31, activated carbon box; 32, blocking piece; 33, sliding switch; 34, small hole. Detailed Description of the Preferred Embodiments

[0032] The following specifically combines the attached Figures 1-3 to describe the present utility model in detail.

[0033] As Figure 1 and Figure 2 shown, the disposable anesthetic breathing filter with a resuscitation function includes a housing 1 and a filtering assembly 2 and a resuscitation assembly 3 accommodated in the housing 1; wherein, the filtering assembly 2 is used to neutralize CO2 in the patient's exhaled gas and filter bacteria and viruses; the resuscitation assembly 3 is used to adsorb the anesthetic in the patient's exhaled gas.

[0034] Specifically, as Figure 1 shown, a first partition 11 and a second partition 12 are respectively arranged in the upper and lower parts of the housing 1, dividing the interior of the housing 1 into an intake channel 13, a filtering channel 14 and an outlet channel 15 that are sequentially communicated; an intake port 16 is opened on the side wall of the intake channel 13; an outlet port 17 is opened on the side wall of the outlet channel 15; the filtering assembly 2 is arranged in the filtering channel 14, and the resuscitation assembly 3 is arranged in the intake channel 13.

[0035] It should be noted that, in order to avoid unsafe structures such as sharp corners in the entire breathing filter, the present utility model sets the housing 1 to be in a cylindrical structure with a hollow interior; the first partition 11 and the second partition 12 are both adapted to the inner wall of the housing 1 and are fixedly connected as a whole. In this way, the entire breathing filter is not only structurally compact but also free from safety hazards caused by sharp corners.

[0036] During use, if it is necessary to filter the gas exhaled by the patient and neutralize the CO2 therein, after the gas enters the intake passage 13, it passes through the filtering component 2 and then enters the outlet passage 15; if it is necessary to quickly wake up the patient, that is, when it is necessary to filter out the anesthetic drugs in the exhaled gas of the patient, after the gas enters the intake passage 13, it first passes through the resuscitation component 3, then through the filtering component 2, and finally enters the outlet passage 15.

[0037] According to an optional embodiment of the present utility model, as Figure 1 shown, the filtering component 2 includes a guiding vane 21 and a carbon dioxide absorption medium; the guiding vane 21 is spirally installed in the filtering passage 14; the carbon dioxide absorption medium is filled in the space formed by the guiding vane 21 and the filtering passage 14.

[0038] Specifically, in order to improve the filtering efficiency, the guiding vane 21 is preferably a spiral vane, and the guiding vane 21 is fixed in the filtering passage 14 through a screw rod 22 integrally connected with the spiral vane; in order to enable the gas to fully contact the carbon dioxide absorption medium and improve the utilization rate of the carbon dioxide absorption medium, the present utility model preferably makes the outer edge of the spiral vane fit the inner wall of the filtering passage 14. Further, since too many spiral vanes are likely to cause an increase in the air path resistance and affect the ventilation effect, and too few spiral vanes cannot make the CO2 fully contact the carbon dioxide absorption medium, therefore, the present utility model preferably sets the number of blades of the spiral vane to two or three.

[0039] Furthermore, the filtering component 2 further includes a first filter element 23 and a second filter element 24; the first filter element 23 is arranged at one end of the filtering passage 14 close to the intake passage 13, and the second filter element 24 is arranged at one end of the filtering passage 14 close to the outlet passage 15; the guiding vane 21 is arranged between the first filter element 23 and the second filter element 24, and both ends of the guiding vane 21 are respectively abutted against the first filter element 23 and the second filter element 24, and the screw rod 22 is supported between the first filter element 23 and the second filter element 24. In this way, the gas exhaled by the patient enters from the intake passage 13, passes through the filtering component 2 to neutralize the CO2 in the gas, and finally the gas after neutralizing the CO2 enters the outlet passage 15 and flows back into the patient's breathing circuit.

[0040] The first filter element 23 and the second filter element 24 can be the same or different, and can both be medical non-woven fabrics or medical sponges with a filtering function, so as to effectively filter out bacteria and viruses in the gas exhaled by the patient.

[0041] The carbon dioxide absorption medium is soda lime and / or calcium lime.

[0042] The filtering process of the filtering component 2 is as follows:

[0043] First, when the gas exhaled by the patient enters the filtering channel 14 from the air inlet channel 13, it first passes through the first filter element 23 at the air inlet end of the filtering channel 14. Some bacteria and viruses in the gas are filtered out by the first filter element 23, and the gas is filtered for the first time. Subsequently, the gas after the first filtration continues to move towards the second filter element 24. During this process, the gas contacts the carbon dioxide absorption medium. The CO2 in the gas is neutralized by the carbon dioxide absorption medium, and under the action of the guide vane 21, the CO2 in the gas is in full contact with the carbon dioxide absorption medium, so that more CO2 in the gas is neutralized, and the gas is filtered for the second time. Finally, the gas after the first two filtrations continues to move towards the air outlet channel 15. When it moves to the second filter element 24, the remaining bacteria and viruses in the gas are filtered out by the second filter element 24, and the gas is filtered for the third time. In this way, for the gas after three filtrations, the content of viruses, bacteria, or CO2 in it is lower than that of the gas only filtered once in the prior art, which not only avoids the "short-circuit effect" but also ensures the purity of the gas when participating in the next breathing cycle.

[0044] In order to further neutralize the CO2 in the gas to the greatest extent, one side of the first filter element 23 is attached to the inner wall of the first partition plate 11, and one side of the second filter element 24 is attached to the inner wall of the second partition plate 12. In this way, the amount of the above-mentioned carbon dioxide absorption medium accommodated in the space formed by the guide vane 21 and the filtering channel 14 can be maximized. The gas exhaled by the patient can be filtered for the first time by the first filter element 23 starting from entering the filtering channel 14, increasing the filtering duration and thus improving the filtering effect.

[0045] It should be noted that the first filter element 23 and the second filter element 24 can be installed in the filtering channel by being tightly fitted with the inner wall of the housing. In addition, the first partition plate 11 and the first filter element 23, as well as the second partition plate 12 and the second filter element 24, can also be tightly attached by bonding or other means.

[0046] According to an optional embodiment of the present invention, in combination with Figure 2 As shown, the resuscitation component 3 includes an activated carbon box 31. The activated carbon box 31 is slidably installed in the air inlet channel 13, and the activated carbon box 31 can communicate the air inlet channel 13 and the filtering channel 14. In this way, when the patient needs to be quickly awakened after the operation, the activated carbon box 31 is slid to between the gas channels of the air inlet channel 13 and the filtering channel 14, so that the gas flows out of the air inlet channel 13 and first enters the activated carbon box 31 and then enters the filtering channel 14 to filter out the anesthetic drug in the gas.

[0047] Specifically, the activated carbon box 31 is slidably connected coaxially with the intake passage 13. Specifically, a sliding switch 33 is provided on the activated carbon box 31, and a sliding groove 18 extending along the axis direction of the intake passage 13 is provided at the top end of the housing 1. The sliding switch 33 extends out from the sliding groove 18. The sliding switch 33 drives the activated carbon box 31 to slide along the sliding groove. The sliding switch 33 can be a slider fixedly connected to the top of the activated carbon box 31.

[0048] More specifically, the activated carbon box 31 has two positions in the intake passage 13: a locked position and a working position. The locked position is far from the air inlet 16 of the intake passage 13. An intake through hole 111 is provided in the part of the first partition 11 corresponding to the working position. The aperture of the intake through hole 111 is smaller than the length of the activated carbon box 31. Initially, the activated carbon box 31 is fixed at the locked position by a blocking piece 32 fixed in the intake passage 13. Here, the fixation means that the edge of the blocking piece 32 is fixedly connected to the inner wall of the intake passage 13 by bonding or other means. The activated carbon box 31 is slid to push open the blocking piece 32 and move to the working position. The gas entering the intake passage 13 enters the filter passage 14 through the activated carbon box 31, then enters the outlet passage 15 from the filter passage 14, and finally flows back to the patient's breathing circuit to achieve the adsorption of anesthetic drugs in the gas.

[0049] Further, as Figure 3 shown, a plurality of small holes 34 are provided on one side of the activated carbon box 31 facing the air inlet 16 of the intake passage 13 and on one side facing the intake through hole 111. That is to say, the activated carbon box 31 communicates the intake passage 13 and the filter passage 14 through a plurality of small holes 34.

[0050] It should be noted that the blocking piece 32 is preferably a thin film, and the blocking piece 32 is welded or bonded to the intake passage 13. Thus, when the resuscitation function is not used, the activated carbon box 31 is blocked by the blocking piece 32. The gas enters from the air inlet 16 of the intake passage 13 and directly enters the filter passage 14 through the intake through hole 111. When it is necessary to quickly wake up the patient, the activated carbon box 31 is moved towards the blocking piece 32 until the blocking piece 32 is broken through, and the activated carbon box 31 is continuously moved until the side facing the intake end of the filter passage 14 covers the intake through hole 111. The gas enters from the air inlet 16 of the intake passage 13, passes through the activated carbon box 31 and then enters the filter passage 14.

[0051] It should be noted that, in order to enable the activated carbon box to cover the intake through hole 111, the length of the activated carbon box 31 is L, where d < L < D - d. Here, D is the inner diameter of the filter passage, and d is the diameter of the intake through hole.

[0052] The working process of the resuscitation component 3 is as follows:

[0053] First, the sliding switch 33 drives the activated carbon box 31 to move along the sliding groove 18 towards the blocking piece 32 and pierce the blocking piece 32. When the activated carbon box 31 moves to the side facing the intake through hole 111 of the filtering channel 14 and covers the intake through hole 111, it stops moving. Then, since a number of small holes 34 are provided on both the side of the activated carbon box 31 facing the intake port 16 of the intake channel 13 and the side facing the intake through hole 111 of the filtering channel 14, the gas exhaled by the patient enters the activated carbon box 31 from the intake channel 13. Inside the activated carbon box 31, the anesthetic drug in the gas is adsorbed by the activated carbon. After part of the anesthetic drug is adsorbed by the activated carbon, the anesthetic drug remaining in the gas decreases, and the gas then enters the filtering channel 14 from the activated carbon box 31. Finally, it enters the outlet channel 15, and the gas with part of the anesthetic drug filtered out enters the patient's breathing circuit again. After continuous circulation for multiple times, the anesthetic drug remaining in the gas gradually decreases, and the patient wakes up quickly.

[0054] It should be noted that an outlet through hole 121 is provided on the second partition plate 12; the intake through hole 111 and the outlet through hole 121 may have the same or different diameters, both greater than 0 and less than 0.5 times the inner diameter of the filtering channel. Thus, the gas directly enters the outlet channel 15 from the outlet through hole 121.

[0055] During specific installation and use, the disposable anesthetic breathing filter with a resuscitation function provided by the present utility model is installed on an anesthetic machine. The intake port 16 of the intake channel 13 of the anesthetic breathing filter is communicated with the outlet of the anesthetic machine, and the outlet port 17 of the outlet channel 15 of the anesthetic breathing filter is connected to one end of the breathing circuit pipeline. The gas (containing CO2) exhaled by the patient enters the intake channel 13 from the outlet of the anesthetic machine, is filtered by the filtering component 2 in the filtering channel 14, and then flows out from the outlet port 17 of the outlet channel 15 to the breathing circuit pipeline.

[0056] Those of ordinary skill in the art will realize that the embodiments here are to help readers understand the principles of the present utility model, and it should be understood that the protection scope of the present utility model is not limited to such specific statements and embodiments. Those of ordinary skill in the art can make various other specific deformations and combinations without departing from the essence of the present utility model based on these technical revelations disclosed by the present utility model, and these deformations and combinations are still within the protection scope of the present utility model.

Claims

1. Disposable anesthetic breathing filter with resuscitation function, characterized in that: It includes a housing (1), a filtration component (2) and a resuscitation component (3) accommodated in the housing (1); A first partition (11) and a second partition (12) are respectively arranged in the upper and lower parts of the housing (1), dividing the interior of the housing (1) into an air inlet channel (13), a filtration channel (14) and an air outlet channel (15) which are sequentially communicated; an air inlet (16) is opened on the side wall of the air inlet channel (13); an air outlet (17) is opened on the side wall of the air outlet channel (15); The filtration component (2) includes a flow guiding piece (21) and a carbon dioxide absorption medium; the flow guiding piece (21) is spirally installed in the filtration channel (14); the carbon dioxide absorption medium is filled in the space formed by the flow guiding piece (21) and the filtration channel (14); The resuscitation component (3) includes an activated carbon box (31); the activated carbon box (31) is slidably installed in the air inlet channel (13), and the activated carbon box (31) can communicate the air inlet channel (13) and the filtration channel (14).

2. The disposable anesthetic breathing filter with a resuscitation function according to claim 1, wherein: The flow guiding piece (21) is a spiral blade, and the flow guiding piece (21) is fixed in the filtration channel (14) through a screw rod (22) integrally connected with the spiral blade; the number of blades of the spiral blade is at least two, and the outer edge of the spiral blade fits the inner wall of the filtration channel (14).

3. The disposable anesthetic breathing filter with resuscitation function according to claim 1, characterized in that: The carbon dioxide absorption medium is soda lime and / or calcium lime particles.

4. The disposable anesthesia breathing filter with a resuscitation function according to claim 1, characterized in that: The filtration component (2) further includes a first filter element (23) and a second filter element (24); the first filter element (23) is arranged at one end of the filtration channel (14) close to the air inlet channel (13), and the second filter element (24) is arranged at one end of the filtration channel (14) close to the air outlet channel (15); the flow guiding piece (21) is arranged between the first filter element (23) and the second filter element (24).

5. The disposable anesthetic breathing filter with resuscitation function according to claim 4, characterized in that: The first filter element (23) and the second filter element (24) are the same or different, and are both medical non-woven fabric or medical sponge.

6. The disposable anesthetic breathing filter with a resuscitation function according to claim 1, characterized in that: The activated carbon box (31) is coaxially and slidably connected with the air inlet channel (13); the activated carbon box (31) has two positions in the air inlet channel (13): a locked position and a working position. The locked position is far from the air inlet (16) of the air inlet channel (13). An air inlet through hole (111) is opened in the part of the first partition (11) corresponding to the working position, and the aperture of the air inlet through hole (111) is smaller than the length of the activated carbon box (31); initially, the activated carbon box (31) is fixed in the locked position by a blocking piece (32) fixed in the air inlet channel (13); sliding the activated carbon box (31) to push open the blocking piece (32) and move to the working position, the gas entering the air inlet channel (13) enters the filtration channel (14) through the activated carbon box (31).

7. The disposable anesthetic breathing filter with a resuscitation function according to claim 6, characterized in that: A sliding switch (33) is arranged on the activated carbon box (31); a sliding groove (18) along the axis direction of the air inlet channel (13) is opened at the top end of the housing (1); the sliding switch (33) extends out from the sliding groove (18).

8. The disposable anesthetic breathing filter with resuscitation function according to claim 6 or 7, characterized in that: A plurality of small holes (34) are formed on both the side of the activated carbon box (31) facing the air inlet (16) of the air inlet passage (13) and the side facing the air inlet through hole (111).

9. The disposable anesthetic breathing filter with resuscitation function according to claim 1, characterized in that: The housing (1) has a cylindrical hollow structure; the first partition (11) and the second partition (12) are both adapted to the inner wall of the housing (1) and integrally fixed; the length of the activated carbon box (31) is L, where d < L < D - d, in which D is the inner diameter of the filtering passage (14) and d is the diameter of the air inlet through hole (111).

10. The disposable anesthesia breathing filter with resuscitation function according to claim 9, characterized in that: An air outlet through hole (121) is formed on the second partition (12); the air inlet through hole (111) and the air outlet through hole (121) have the same or different diameters, both greater than 0 and less than 0.5 times the inner diameter of the filtering passage (14).

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