Carbon dioxide absorption device for anesthesia machine

Abstract

The utility model provides a carbon dioxide absorption device for an anaesthesia machine, and relates to the technical field of carbon dioxide absorption devices, the absorption device is provided with an absorption tank and a cover plate, the cover plate is arranged at the tank opening of the absorption tank, and the cover plate is provided with an air outlet hole; a bottom plate is arranged at the bottom of the absorption tank; an air inlet hole is formed in the bottom plate; an absorption cavity is formed in the absorption tank, and an absorbent and filter cotton are arranged in the absorption cavity; an air guide plate is further arranged, the air guide plate is arranged in the absorption cavity and is close to the bottom plate, a ventilation cavity is formed between the air guide plate and the bottom plate, and an air guide opening is formed in the edge of the air guide plate; the ventilation cavity communicates the air inlet with the air guide port, and the absorption cavity communicates the air guide port with the air outlet; the ventilation cavity and the gas guide plate are matched to control the flowing path of the mixed gas in the absorption cavity, so that the mixed gas enters from the edge of the absorption cavity and makes full contact with the absorbent in the absorption cavity, carbon dioxide in the mixed gas is completely absorbed by the absorbent, and the absorption effect on the carbon dioxide is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to carbon dioxide absorption device technical field, more specifically, it relates to a carbon dioxide absorption device for anesthesia machine. BACKGROUND

[0002] The carbon dioxide absorption device is suitable for various medical anesthesia machines, adopts closed cycle mode when the anesthesia machine ventilates, the exhaled gas in the anesthesia machine breathing pipeline is mixed gas containing carbon dioxide, and the carbon dioxide absorption device is used for absorbing the carbon dioxide exhaled by the patient in the anesthesia breathing circuit.

[0003] The existing carbon dioxide absorption device mainly has the following problems: in use, the gas entering the carbon dioxide absorption device is difficult to be fully utilized by the medical absorbent in the absorption tank, only the medical absorbent located at the middle position of the absorption tank absorbs carbon dioxide, and the medical absorbent located at the inner side of the absorption tank absorbs less carbon dioxide, resulting in waste of medical absorbent, and the medical absorbent located at the middle of the absorption tank cannot completely absorb the carbon dioxide in the gas, resulting in poor absorption effect and incomplete absorption of carbon dioxide in the gas. SUMMARY

[0004] To achieve the above-mentioned purpose, the technical scheme of the present application is:

[0005] A carbon dioxide absorption device for anesthesia machine is provided, which comprises an absorption tank and a cover plate, the cover plate is arranged at the tank opening of the absorption tank, and the cover plate is provided with a gas outlet hole; the bottom of the absorption tank is provided with a bottom plate, and the bottom plate is provided with a gas inlet hole; the absorption tank is provided with an absorption cavity, and the absorption cavity is provided with an absorbent and filter cotton; a gas guide plate is further provided, which is arranged in the absorption cavity and close to the bottom plate, a gas passage is arranged between the gas guide plate and the bottom plate, and the edge of the gas guide plate is provided with a gas guide hole; the gas passage communicates the gas inlet hole with the gas guide hole, and the absorption cavity communicates the gas guide hole with the gas outlet hole.

[0006] Preferably, the gas guide hole is provided with a plurality of and uniformly distributed along the edge of the gas guide plate.

[0007] Preferably, the gas guide hole is provided with four.

[0008] Preferably, the inner side of the bottom plate is provided with a support rib, the support rib is annular, and the gas guide plate is attached to the support rib; the gas inlet hole is provided with a plurality of and uniformly distributed outside the support rib.

[0009] Preferably, the inner side of the bottom plate is further provided with a partition ridge, the height of the partition ridge is same as the height of the support ridge; the support ridge is arranged at the center of the bottom plate, and the partition ridge is arranged between the support ridge and the side wall of the absorption tank.

[0010] Preferably, the support ridge is in the shape of a circular ring, and the partition ridge is arranged along the radial direction of the support ridge.

[0011] Preferably, a plurality of partition ridges are arranged, and the plurality of partition ridges are uniformly distributed along the circumferential direction of the support ridge.

[0012] Preferably, the partition ridge is arranged in three.

[0013] Preferably, the cover plate is provided with an air outlet portion, a plurality of air outlet holes are arranged on the air outlet portion and are uniformly distributed; the bottom plate is provided with an air inlet portion, and the air inlet holes are uniformly distributed on the air inlet portion; and the air outlet portion is opposite to the air inlet portion.

[0014] Preferably, the absorption tank is in the shape of a cylinder, and the cross section of the air guide plate is in the shape of a circle.

[0015] The carbon dioxide absorption device for the anesthetic machine has the following beneficial effects:

[0016] The mixed gas containing carbon dioxide flows into the absorption tank from the air inlet hole, enters the ventilation cavity first, and enters the absorption cavity through the air guide hole. The carbon dioxide in the mixed gas fully reacts with the absorbent in the absorption cavity and is absorbed by the absorbent. The gas not absorbed by the absorbent flows out from the air outlet hole and is transported to the anesthetic machine through the pipeline. The ventilation cavity cooperates with the air guide plate to control the flow path of the mixed gas in the absorption cavity, so that the mixed gas enters from the edge of the absorption cavity, the mixed gas fully contacts the absorbent in the absorption cavity, the carbon dioxide in the mixed gas is completely absorbed by the absorbent, and the absorption effect of carbon dioxide is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0018] Figure 1 is a schematic view of the carbon dioxide absorption device for the anesthetic machine;

[0019] Figure 2 is a schematic view of the absorption tank;

[0020] Figure 3 is a schematic view of the cover plate;

[0021] Figure 4 is a perspective view of the air guide plate;

[0022] Figure 5 Figure 1 is a top view of the air guide plate.

[0023] Figure legend:

[0024] 1 is an absorption tank, 11 is a bottom plate, 111 is an air inlet hole, 112 is a support rib, 113 is a partition rib, 114 is an air inlet part, 12 is an absorption cavity, and 13 is a ventilation cavity;

[0025] 2 is a cover plate, 21 is an air outlet hole, and 22 is an air outlet part;

[0026] 3 is an air guide plate, and 31 is an air guide hole. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects of the utility model clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and do not limit the utility model.

[0028] The carbon dioxide absorption device for an anesthesia machine provided in the embodiment of the utility model will be described. As shown in the figure: Figures 1 to 5

[0029] A carbon dioxide absorption device for an anesthesia machine is provided with an absorption tank 1 and a cover plate 2, the cover plate 2 is arranged at the tank opening of the absorption tank 1, and the cover plate 2 is provided with an air outlet hole 21; the bottom of the absorption tank 1 is provided with a bottom plate 11, and the bottom plate 11 is provided with an air inlet hole 111; the absorption tank 1 is provided with an absorption cavity 12, and the absorption cavity 12 is provided with an absorbent; the device is also provided with an air guide plate 3, the air guide plate 3 is arranged in the absorption cavity 12, the air guide plate 3 is close to the bottom plate 11, a ventilation cavity 13 is arranged between the air guide plate 3 and the bottom plate 11, and the edge of the air guide plate 3 is provided with an air guide hole 31; the ventilation cavity 13 communicates the air inlet hole 111 with the air guide hole 31, and the absorption cavity 12 communicates the air guide hole 31 with the air outlet hole 21.

[0030] In the embodiment, the absorbent is granular calcium lime or soda lime, and the absorbent is filled in the absorption cavity 12. The absorption cavity 12 is provided with two layers of filter cotton, one layer is an air inlet filter cotton close to the bottom plate 11, and the other layer is an air outlet filter cotton close to the cover plate 2; the air inlet filter cotton hinders the upward flow of the gas in the absorption cavity 12, so that the gas has sufficient time to contact and react with the absorbent, improves the utilization rate of the carbon dioxide absorbent, avoids the waste of the carbon dioxide absorbent, and ensures the absorption effect of the carbon dioxide; the air outlet filter cotton can filter the mixed gas flowing through, reduces the bacteria and dust carried in the outflow gas through the carbon dioxide absorption device, and avoids the adverse effects of the bacteria and dust carried in the gas on the patient.

[0031] ​The mixed gas containing carbon dioxide flows into the absorption tank 1 from the air inlet hole 111, enters the air chamber 13 first, and enters the absorption chamber 12 through the air guide port 31. The carbon dioxide in the mixed gas fully reacts with the absorbent in the absorption chamber 12 and is absorbed by the absorbent. The gas not absorbed by the absorbent flows out from the air outlet hole 21 and is transported to the anesthesia machine through the pipeline; the air chamber 13 cooperates with the air guide plate 3 to control the flow path of the mixed gas in the absorption chamber 13, so that the mixed gas enters from the edge of the absorption chamber 12, the mixed gas fully contacts the absorbent in the absorption chamber 12, the carbon dioxide in the mixed gas is completely absorbed by the absorbent, and the absorption effect of carbon dioxide is ensured.

[0032] The air guide port 31 is provided with a plurality of air guide ports and is uniformly distributed along the edge of the air guide plate 3, so that the mixed gas is divided into multiple branches and uniformly dispersed into the absorption chamber 12, further ensuring that the mixed gas fully contacts the absorbent, and the absorption chamber 12 fully absorbs the carbon dioxide.

[0033] The air guide port 31 is provided with four air guide ports, which can take into account the strength of the air guide plate 3 and the shunt effect of the mixed gas.

[0034] The inner side of the bottom plate 11 is provided with a support rib 112, the support rib 112 is annular, and the air guide plate 3 is attached to the support rib 112; the air inlet hole 111 is provided with a plurality of air inlet holes and is uniformly distributed outside the support rib 112; the air guide plate 3 is attached to the support rib 112, and the air guide plate 3 and the bottom plate 11 form a stable air chamber 13, which can avoid the air guide plate 3 blocking the air inlet hole 111 and affecting the air effect of the air inlet hole 111.

[0035] The inner side of the bottom plate 11 is also provided with a partition rib 113, the height of the partition rib 113 is the same as the height of the support rib 112; the support rib 112 is arranged at the center of the bottom plate 11, and the partition rib 113 is arranged between the support rib 112 and the side wall of the absorption tank 1; the support rib 112 and the partition rib 113 can increase the strength of the bottom plate 11 and can jointly support the air guide plate 3.

[0036] The support rib 112 is annular, and the partition rib 113 is arranged in the radial direction of the support rib 112.

[0037] The partition rib 113 is provided with a plurality of partition ribs, and the plurality of partition ribs are uniformly distributed along the circumferential direction of the support rib 112. Adjacent partition ribs 113 are independent of each other, and the air chamber 13 is divided into a plurality of independent chambers, further ensuring the shunt effect of the mixed gas.

[0038] In the embodiment, the partitioning ridge 113 is provided with three, and the ventilation cavity 13 can be divided into three independent chambers. The partitioning ridge 113 can also be provided with four, and the ventilation cavity 13 can be divided into four independent chambers. At this time, the number of chambers is the same as that of the air guide ports 31. The rotary air guide plate 3 can make each chamber face one air guide port 31, and further ensure the shunting effect of the mixed gas.

[0039] The cover plate 2 is provided with an air outlet part 22, and the air outlet holes 21 are uniformly distributed on the air outlet part 22. The bottom plate 11 is provided with an air inlet part 114, and the air inlet holes 111 are uniformly distributed on the air inlet part 114. The air outlet part 22 is opposite to the air inlet part 114.

[0040] The absorption tank 1 is in a cylindrical shape, and the cross section of the air guide plate 3 is in a circular shape, which is convenient to process and install.

[0041] The above only describes the preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A carbon dioxide absorption device for an anesthesia apparatus, provided with an absorption canister and a cover plate, the cover plate being provided at a canister opening of the absorption canister, the cover plate being provided with a gas outlet hole, characterized in that, The bottom of the absorption tank is provided with a bottom plate, and the bottom plate is provided with an air inlet hole; the absorption tank is provided with an absorption cavity, and the absorption cavity is provided with an absorbent and filter cotton; and a gas guide plate is further provided, which is arranged in the absorption cavity and close to the bottom plate, and a ventilation cavity is arranged between the gas guide plate and the bottom plate, and the edge of the gas guide plate is provided with a gas guide hole; the ventilation cavity communicates the air inlet hole with the gas guide hole, and the absorption cavity communicates the gas guide hole with the air outlet hole.

2. The carbon dioxide absorbent set for an anesthesia apparatus according to claim 1, characterized by: The gas guide hole is provided with a plurality of gas guide holes which are uniformly distributed along the edge of the gas guide plate.

3. The carbon dioxide absorbent set for an anesthesia apparatus according to claim 2, characterized by: The gas guide hole is provided with four gas guide holes.

4. The carbon dioxide absorbent set for an anesthesia apparatus according to any one of claims 1 to 3, characterized by: The inner side of the bottom plate is provided with a support rib, and the support rib is annular, and the gas guide plate is attached to the support rib; the air inlet hole is provided with a plurality of air inlet holes which are uniformly distributed outside the support rib.

5. The carbon dioxide absorbent set for an anesthesia apparatus according to claim 4, characterized by: The inner side of the bottom plate is further provided with a partition rib, and the height of the partition rib is the same as that of the support rib; the support rib is arranged at the center of the bottom plate, and the partition rib is arranged between the support rib and the side wall of the absorption tank.

6. The carbon dioxide absorber for an anesthesia apparatus according to claim 5, characterized by: The support rib is annular, and the partition rib is arranged along the radial direction of the support rib.

7. The carbon dioxide absorption device for an anesthesia apparatus according to claim 6, characterized by: The partition rib is provided with a plurality of partition ribs which are uniformly distributed along the circumferential direction of the support rib.

8. The carbon dioxide absorber for an anesthesia apparatus according to claim 7, characterized by: The partition rib is provided with three partition ribs.

9. The carbon dioxide absorbent set for an anesthesia apparatus according to claim 4, characterized by: The cover plate is provided with an air outlet part, and the air outlet hole is provided with a plurality of air outlet holes which are uniformly distributed on the air outlet part; the bottom plate is provided with an air inlet part, and the air inlet hole is uniformly distributed on the air inlet part; and the air outlet part is opposite to the air inlet part.

10. The carbon dioxide absorbent apparatus for an anesthesia apparatus as claimed in any one of claims 1 to 3, characterized by: The absorption tank is cylindrical, and the cross section of the gas guide plate is circular.

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