CN112807541A

CN112807541A - Carbon dioxide absorbing device

Info

Publication number: CN112807541A
Application number: CN202110209649.4A
Authority: CN
Inventors: 党海平; 钱荣盛; 谢建华; 李海勇; 王娟
Original assignee: Changzhou Guli High End Equipment Innovation Center Co ltd
Current assignee: Anpunuo Medical Technology Changzhou Co ltd
Priority date: 2021-02-24
Filing date: 2021-02-24
Publication date: 2021-05-18

Abstract

The invention relates to the technical field of medical instruments, in particular to a carbon dioxide absorption device. A carbon dioxide absorbing device comprising: the carbon dioxide absorbent is accommodated in the tank body; the cover body is detachably assembled at the opening of the tank body, a first ventilation structure and a second ventilation structure are formed on the cover body, the first ventilation structure is located on the inner periphery of the second ventilation structure, one ventilation structure of the two ventilation structures admits air, the other ventilation structure gives out air, a connecting portion extends from one end, far away from the tank body, of the cover body, and the connecting portion is connected with external equipment. The first ventilation structure is used for air intake and comprises a circular air inlet protruding outwards. The second ventilation structure is used for exhausting air and comprises a plurality of air outlet holes which are annularly arranged. The technical problems that a carbon dioxide absorber in the prior art is inconvenient to replace and poor in applicability are solved.

Description

Carbon dioxide absorbing device

Technical Field

The invention relates to the technical field of medical instruments, in particular to a carbon dioxide absorption device.

Background

The anesthesia machine is an important device in an operating room, provides respiratory support and inhalation anesthesia for patients in general anesthesia operation, and is expensive as a large-scale device. All anesthesia machines are provided with matched carbon dioxide absorption tanks, and carbon dioxide absorbent is contained in the tanks to absorb carbon dioxide gas generated by respiration of patients in operation, so that carbon dioxide accumulation caused by repeated carbon dioxide inhalation is avoided. However, in the use process of the carbon dioxide absorber in the prior art, the positions of the inlet and the inlet are constant, once the carbon dioxide absorbent in the absorber needs to be replaced, the whole carbon dioxide absorber needs to be taken down, and a new carbon dioxide absorber needs to be replaced, so that the carbon dioxide absorber is inconvenient and poor in applicability.

Disclosure of Invention

In order to solve the technical problems that a carbon dioxide absorber in the prior art is inconvenient to replace and poor in applicability, the invention provides a carbon dioxide absorbing device, and the technical problems are solved. The technical scheme of the invention is as follows:

a carbon dioxide absorbing device comprising:

the carbon dioxide absorbent is accommodated in the tank body;

the cover body is detachably assembled at the opening of the tank body, a first ventilation structure and a second ventilation structure are formed on the cover body, the first ventilation structure is located on the inner periphery of the second ventilation structure, one ventilation structure of the two ventilation structures admits air, the other ventilation structure gives out air, a connecting portion extends from one end, far away from the tank body, of the cover body, and the connecting portion is connected with external equipment.

According to the carbon dioxide absorption device, the cover body is detachably assembled on the tank body and connected with external equipment, so that when the carbon dioxide absorbent needs to be replaced, only the tank body needs to be replaced, the cover body does not need to be replaced, and the cover body can be reused. In addition, a first ventilation structure and a second ventilation structure are formed on the cover body to allow air to enter and exit, and the first ventilation structure is located on the inner periphery of the second ventilation structure, so that the problem of alignment cannot be involved when the cover body is assembled on the tank body, and the tank body and the cover body are convenient to assemble.

According to one embodiment of the invention, the first venting structure admits air and the first venting structure comprises a circular air inlet protruding outwards.

According to an embodiment of the present invention, the second vent structure vents air, and the second vent structure includes a plurality of circumferentially arranged vent holes.

According to one embodiment of the invention, the air outlet is an elongated air outlet, and the air outlet extends radially.

According to one embodiment of the invention, the tank body is partitioned into an inner chamber and an outer chamber, the inner chamber is arranged corresponding to the first ventilation structure, the outer chamber is arranged corresponding to the second ventilation structure, and the inner chamber and the outer chamber are communicated.

According to one embodiment of the invention, a partition layer is formed in the tank body, the partition layer is cylindrical, the diameter of the partition layer is larger than the outer diameter of the first ventilation structure and smaller than the inner diameter of the second ventilation structure, the partition layer partitions the interior of the tank body into the inner cavity and the outer cavity, and a ventilation hole is formed at one end, close to the inner bottom surface of the tank body, of the partition layer so as to communicate the inner cavity and the outer cavity.

According to one embodiment of the invention, a sealing element is arranged between the tank and the cover and between the barrier and the cover.

According to one embodiment of the invention, both the inner chamber and the outer chamber contain a carbon dioxide absorbent.

According to an embodiment of the invention, the port of the inner chamber and the port of the outer chamber are provided with a sponge respectively, which covers the first and second venting structures respectively.

According to one embodiment of the invention, the cover body and the tank body are in threaded connection, and a buckle is formed on the connecting part of the cover body so as to be clamped with external equipment.

Based on the technical scheme, the invention can realize the following technical effects:

1. according to the carbon dioxide absorption device, the cover body is detachably assembled on the tank body and connected with external equipment, so that when the carbon dioxide absorbent needs to be replaced, only the tank body needs to be replaced, the cover body does not need to be replaced, and the cover body can be reused. In addition, a first ventilation structure and a second ventilation structure are formed on the cover body to allow air to enter and exit, and the first ventilation structure is positioned on the inner periphery of the second ventilation structure, so that the problem of alignment cannot be involved when the cover body is assembled on the tank body, and the tank body and the cover body are convenient to assemble;

2. according to the carbon dioxide absorption device, the first ventilation structure is arranged for air intake, and the first ventilation structure is a circular air inlet which is arranged in a protruding mode, so that the air inlet is conveniently communicated with external equipment; the second vent structure is arranged to vent air, the second vent structure comprises a plurality of air outlet holes which are annularly arranged, the air outlet holes are strip-shaped air outlet holes and radially extend, and compared with the traditional circular holes and honeycomb-shaped air holes, the strip-shaped air outlet holes are not coincided to be blocked, so that the ventilation efficiency is high;

3. according to the carbon dioxide absorption device, the cylindrical interlayer is arranged in the tank body, the tank body can be partitioned into the cylindrical inner cavity and the circular cylindrical outer cavity, the carbon dioxide absorbent is contained in the inner cavity and the outer cavity, the bottom end of the interlayer is provided with the vent hole to communicate the inner cavity and the outer cavity, so that gas entering from the first vent structure firstly enters the inner cavity, then enters the outer cavity through the vent hole, and finally is discharged out of the tank body through the second vent structure, the traveling path of the gas in the tank body can be prolonged, and the effective absorption of the carbon dioxide in the gas is realized;

4. according to the carbon dioxide absorption device, the sponge is arranged at the port of the inner cavity and the port of the outer cavity, the sponge covers the first ventilation structure and the second ventilation structure, and the sponge covering the first ventilation structure is arranged, so that the carbon dioxide absorbent powder in the inner cavity can be prevented from overflowing; by providing a sponge covering the second venting structure, spillage of carbon dioxide absorbent powder in the outer chamber can be prevented. Threaded connection between the lid and the jar body, lid and external equipment joint all can realize dismantling the connection, convenient assembly.

Drawings

FIG. 1 is a schematic view showing the structure of a carbon dioxide absorbing apparatus according to the present invention;

FIG. 2 is a sectional view of a carbon dioxide absorbing device;

FIG. 3 is an exploded view of a carbon dioxide absorbing unit;

FIG. 4 is a cross-sectional view of a can body;

FIG. 5 is a cross-sectional view of the cover;

in the figure: 1-tank body; 11-a barrier layer; 111-a vent; 112-a first stop protrusion; 12-a second limit projection; 13-external thread; 2-a cover body; 21-a first venting structure; 22-a second vent structure; 221-air outlet holes; 23-a connecting cylinder; 231-internal threads; 24-a connecting portion; 241-buckling; 3-sponge; 31-a first sponge; 32-a second sponge; 4-a seal; 41-a first seal; 42-second seal.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

As shown in fig. 1 to 5, the present embodiment provides a carbon dioxide absorbing device, which includes a tank 1 and a cover 2, wherein the tank 1 is open at one end, the cover 2 is detachably covered at the opening of the tank 1, a carbon dioxide absorbent is accommodated in the tank 1, two ventilation structures are formed on the cover 2, one ventilation structure of the two ventilation structures is used for air intake, the other ventilation structure is used for air exhaust, air exhaled by a patient enters the tank 1 through the ventilation structure for air intake on the cover 2, and then carbon dioxide in the air is absorbed by the carbon dioxide absorbent, and the air in the tank 1 is exhausted through the ventilation structure for air exhaust.

The tank body 1 is a cylindrical tank body with an opening at one end, a containing space is arranged in the tank body 1, the containing space in the tank body 1 is divided into an inner cavity A and an outer cavity B, the inner cavity A and the outer cavity B are correspondingly and respectively arranged corresponding to the two ventilation structures on the cover body 2, and the inner cavity A is communicated with the outer cavity B. Specifically, an interlayer 11 is formed inside the tank body 1, the interlayer 11 is cylindrical, the inner end of the interlayer 11 is integrally formed or fixedly connected with the inner bottom surface of the tank body 1, the outer end of the interlayer 11 is flush with the opening of the tank body 1, the interlayer 11 is coaxially arranged with the tank body 1, the interlayer 11 separates the inside of the tank body 1 into an inner cavity A and an outer cavity B, the inner cavity A is a cylindrical cavity, the outer cavity B is a circular cylindrical cavity, and a vent hole 111 is formed at the inner end of the interlayer 11 to communicate the inner cavity A with the outer cavity B.

As a preferred technical solution of the present embodiment, the vent holes 111 are square vent holes, and at least two vent holes 111 are circumferentially and uniformly distributed.

As a preferred technical solution of this embodiment, the carbon dioxide absorbent is contained in both the inner cavity a and the outer cavity B of the tank body 1.

The opening part of jar body 1 is covered to lid 2 detachably, be formed with two air-passing structure on the lid 2, be first air-passing structure 21 and second air-passing structure 22 respectively, first air-passing structure 21 is located the interior week of second air-passing structure 22, first air-passing structure 21 and the coaxial setting of second air-passing structure 22, the one end of lid 2 extends has connecting cylinder 23, connecting cylinder 23 can be dismantled with the opening of jar body 1 and be connected, the other end of lid 2 extends there is connecting portion 24, connecting portion 24 is used for being connected with external equipment. So, when needing to change carbon dioxide absorbing device, can only dismantle jar body 1, need not to dismantle lid 2, with new jar body 1 with lid 2 be connected can.

As a preferred technical solution of this embodiment, one of the first ventilation structure 21 and the second ventilation structure 22 may be used for air intake, and the other is used for air outtake, that is, the first ventilation structure 21 may be used for air intake, the second ventilation structure 22 may be used for air outtake, the first ventilation structure 21 may also be used for air outtake, and the second ventilation structure 22 may be used for air intake, in this embodiment, the first ventilation structure 21 is used for air intake, and the second ventilation structure 22 is used for air outtake. In this embodiment, the first ventilation structure 21 is a circular air inlet protruding outward, and the height of the air inlet is higher than that of the connection portion 24. The second ventilation structure 22 is circumferentially arranged on the periphery of the first ventilation structure 21, the second ventilation structure 22 comprises a plurality of air outlet holes 221, and the plurality of air outlet holes 221 are annularly arranged. Preferably, the air outlet 221 is an elongated air outlet, and the length direction of the air outlet 221 extends along the radial direction.

As a preferred technical solution of this embodiment, the inner cavity a is disposed corresponding to the first ventilation structure 21, the outer cavity B is disposed corresponding to the second ventilation structure 22, and the diameter of the partition 11 is larger than the outer diameter of the first ventilation structure 21 and smaller than the inner diameter of the second ventilation structure 22.

As the preferred technical scheme of this embodiment, lid 2 can adopt removable connected mode such as joint or threaded connection to connect at the opening part of jar body 1, and in this embodiment, lid 2 and jar body 1 threaded connection. Specifically, an internal thread 231 is formed on the inner wall of the connecting cylinder 23 of the cover 2, and an external thread 13 is formed on the outer wall of the opening of the can body 1, so as to facilitate the screw-coupling of the cover 2 to the can body 1.

As a preferred technical solution of this embodiment, the connection portion 24 is detachably connected to the external device in a snap-fit manner, specifically, the connection portion 24 is a cylindrical structure, and a snap 241 is formed on an inner wall of the connection portion 24 to be in snap-fit with the external device.

In order to ensure the tightness of the inner cavity A and the outer cavity B at the opening of the tank body 1, the gas entering the inner cavity A through the first ventilation structure 21 needs to enter the outer cavity B through the ventilation hole 111 at the inner end of the interlayer 11, and sealing elements 4 are arranged between the tank body 1 and the cover body 2 and between the interlayer 11 and the cover body 2. Specifically, the number of the sealing members 4 is two, namely a first sealing member 41 and a second sealing member 42, the first sealing member 41 is located between the outer end of the partition 11 and the cover 2, and the second sealing member 42 is located between the open end of the can body 1 and the cover 2. The first seal 41 and the second seal 42 may each be selected from, but not limited to, a sealing ring.

In order to prevent the carbon dioxide absorbent powder in the tank body 1 from overflowing, a sponge 3 is further arranged at the opening of the tank body 1, and the sponge 3 covers the first ventilating structure 21 and the second ventilating structure 22 to prevent the carbon dioxide absorbent powder from overflowing. Specifically, the sponge 3 includes a first sponge 31 and a second sponge 32, the first sponge 31 is circular, the first sponge 31 is disposed at the port of the inner cavity a, and the first sponge 31 covers the first ventilation structure 21; the second sponge 32 is in a ring shape, the second sponge 32 is arranged at the port of the outer cavity B, and the second sponge 32 covers the second ventilation structure 22. Preferably, the first sponge 31 can be embedded right at the port of the inner cavity a, and the second sponge 32 can be embedded right at the port of the outer cavity B.

As a preferred technical solution of this embodiment, in order to facilitate the assembly of the sponge 3, a first limiting protrusion 112 extends from an inner wall of an outer end of the partition 11, the first limiting protrusion 112 may be a continuous annular protrusion or may be a plurality of discrete protrusions, and the first limiting protrusion 112 and the cover 2 cooperate to limit the first sponge 31; a second limiting bulge 12 extends on the inner wall of the tank body 1 close to the opening, the second limiting bulge 12 can be a continuous annular bulge or a plurality of discrete bulges, and the second limiting bulge 12 and the cover body 2 are matched for limiting a second sponge 32.

Based on the above structure, the working principle of the carbon dioxide absorbing device of the present embodiment is as follows: the connecting part 24 of the cover body 2 of the carbon dioxide absorbing device is clamped with external equipment, and the external equipment can be an anesthesia machine. Starting the anesthesia machine, introducing a mixed gas containing carbon dioxide exhaled by a patient through a first ventilation structure 21 on a cover body 2 of a carbon dioxide absorption device, introducing the mixed gas into an inner cavity A of a tank body 1 through a first sponge 31, and performing primary absorption on the carbon dioxide in the mixed gas through a carbon dioxide absorbent in the inner cavity A; after being adsorbed by the carbon dioxide adsorbent in the inner cavity A, the mixed gas enters the outer cavity B through the square vent holes 111 on the interlayer 11 to carry out secondary absorption on the carbon dioxide in the mixed gas; the mixed gas after the second adsorption enters the anesthesia machine again from the second ventilation structure 22 through the second sponge 32, and at this time, the carbon dioxide in the mixed gas is completely absorbed.

When the carbon dioxide absorbent needs to be replaced, only the tank body 1 needs to be detached, the cover body 2 does not need to be detached, and the tank body 1 with the new carbon dioxide absorbent is mounted to the cover body 2, so that the replacement workload can be greatly reduced, the reuse of the cover body 2 can be ensured, and the applicability is good.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. A carbon dioxide absorbing apparatus, comprising:

the carbon dioxide absorption tank comprises a tank body (1), wherein a carbon dioxide absorbent is contained in the tank body (1);

the cover body (2), the cover body (2) detachably assembles the opening part of the tank body (1), be formed with first ventilation structure (21) and second ventilation structure (22) on the cover body (2), first ventilation structure (21) is located the inner periphery of second ventilation structure (22), and one ventilation structure of two ventilation structures (21, 22) admits air, and another ventilation structure gives vent to anger, the one end of keeping away from of cover body (2) the tank body (1) extends there is connecting portion (24), connecting portion (24) are connected with external equipment.

2. A carbon dioxide absorbing device according to claim 1, wherein the first ventilating structure (21) is supplied with air, and the first ventilating structure (21) includes a circular air inlet which is convex outward.

3. A carbon dioxide absorbing device according to any one of claims 1-2, wherein the second aeration structure (22) is vented, and the second aeration structure (22) comprises a plurality of circumferentially arranged vent holes (221).

4. A carbon dioxide absorbing device according to claim 3, wherein the outlet holes (221) are elongated outlet holes, and the outlet holes (221) extend radially.

5. A carbon dioxide absorption apparatus according to any one of claims 1-2 and 4, wherein the tank (1) is partitioned into an inner chamber (A) and an outer chamber (B), the inner chamber (A) is disposed corresponding to the first aeration structure (21), the outer chamber (B) is disposed corresponding to the second aeration structure (22), and the inner chamber (A) and the outer chamber (B) are communicated.

6. A carbon dioxide absorption device according to claim 5, characterized in that a partition (11) is formed in the tank (1), the partition (11) is cylindrical, the diameter of the partition (11) is larger than the outer diameter of the first ventilation structure (21) and smaller than the inner diameter of the second ventilation structure (22), the partition (11) partitions the interior of the tank (1) into the inner cavity (A) and the outer cavity (B), and a vent hole (111) is formed at one end of the partition (11) close to the inner bottom surface of the tank (1) to communicate the inner cavity (A) and the outer cavity (B).

7. A carbon dioxide absorption device according to claim 6, characterized in that a seal (4) is provided between the tank (1) and the cover (2) and between the barrier (11) and the cover (2).

8. A carbon dioxide absorption apparatus according to claim 5, wherein the inner chamber (A) and the outer chamber (B) each contain a carbon dioxide absorbent.

9. A carbon dioxide absorbing device according to claim 5, characterized in that the ports of the inner chamber (A) and the outer chamber (B) are respectively provided with a sponge (3), the sponge (3) respectively covering the first aeration structure (21) and the second aeration structure (22).

10. The carbon dioxide absorption device as claimed in claim 1, wherein the cover (2) is in threaded connection with the tank (1), and a buckle (241) is formed on the connecting portion (24) of the cover (2) to be clamped with an external device.