Direct hanging type carbon dioxide absorber

Abstract

The utility model provides a direct hanging type carbon dioxide absorber, which relates to the technical field of medical instruments and comprises a barrel cover, an arc-shaped sliding chute is arranged below the front side of the outer surface of the barrel cover, the inner surface of the barrel cover is rotatably connected with a rotating column, and a driving component is fixedly connected below the front side of the outer surface of the rotating column. The driving plate is pushed to enable the positioning inserting column to be separated from the positioning inserting hole, the driving assembly drives the rotating column to rotate around the connecting inserting column, in the rotating process, the tops of the other two carbon dioxide absorbent containing tanks which do not work originally are gradually communicated with the air inlet and the air outlet, and the bottoms of the other two carbon dioxide absorbent containing tanks are communicated with the two ends of the communicating groove. When a patient exhales, the gas exhaled by the patient can flow into a new carbon dioxide absorbent placing tank filled with an effective absorbent, so that the carbon dioxide absorbent placing tank can be quickly replaced without shutdown, the adverse effect on the patient caused by interruption of mechanical ventilation is avoided, and the safety and continuity of the anesthesia process are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a direct-hanging carbon dioxide absorber. Background Technology

[0002] In modern medical anesthesia, the anesthesia machine plays a crucial role. The anesthesia machine delivers anesthetic drugs into the patient's alveoli through a mechanical circuit, creating a partial pressure of anesthetic gas. After diffusing into the blood, the anesthetic drug directly inhibits the central nervous system, thus producing the effect of general anesthesia. During this process, the patient's exhaled gas contains nitrogen, oxygen, anesthetic gas, and a large amount of carbon dioxide. If this exhaled carbon dioxide is not dealt with in time, it will accumulate in the anesthesia circuit, causing a sharp increase in the carbon dioxide concentration in the circuit. High concentrations of carbon dioxide not only interfere with the anesthesia machine's precise control over the composition of inhaled gas, but may also cause serious complications such as respiratory acidosis, endangering the patient's life.

[0003] As a key component of the gas purification system of anesthesia machines, the carbon dioxide absorber bears the important responsibility of absorbing carbon dioxide from the patient's exhaled gas to ensure the stability and safety of the gas composition within the anesthesia circuit.

[0004] The existing direct-mount carbon dioxide absorber has the following shortcomings:

[0005] Existing direct-attached carbon dioxide absorbers are typically equipped with only a single space for the carbon dioxide absorbent. When the carbon dioxide absorbent fails, mechanical ventilation often needs to be interrupted to replace it. During anesthesia, interrupting mechanical ventilation poses a significant risk to the patient and may lead to adverse consequences such as hypoxia. This is because their overall structure lacks a flexible and replaceable absorbent working unit switching design, making it impossible to quickly replace the absorbent without stopping the device. Utility Model Content

[0006] This invention proposes a direct-hanging carbon dioxide absorber. When two carbon dioxide absorbent placement tanks fail, the drive plate is pushed to rotate the rotating column, and the two non-working tanks are connected and put into use, achieving replacement without stopping the machine. When replacing the failed tank, the rotating baffle is pulled to remove the tank body, and after replacement, it is inserted back and fixed, improving efficiency and solving the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: a direct-hanging carbon dioxide absorber includes a cylindrical cover. A hook is fixedly connected to the upper rear side of the outer surface of the cylindrical cover. An air inlet is fixedly connected to the top left side of the cylindrical cover, and an air outlet is fixedly connected to the top right side of the cylindrical cover. An arc-shaped groove is formed on the lower front side of the outer surface of the cylindrical cover. Positioning holes are formed on both the left and right sides of the lower surface of the arc-shaped groove. A rotating column is rotatably connected to the inner surface of the cylindrical cover. A driving assembly is fixedly connected to the lower front side of the outer surface of the rotating column. The driving assembly is rotatably connected to the inner surface of the arc-shaped groove. A connecting post is fixedly connected to the middle of the upper surface of the inner wall of the cylindrical cover. A through groove is opened at the bottom of the connecting post. A through insertion hole is opened in the middle of the rotating post. The outer surface of the connecting post is rotatably connected to the inner surface of the insertion hole. Four through holes are arranged in a ring array at the bottom of the inner surface of the insertion hole. Four through connecting cylinder grooves are arranged in a ring array inside the rotating post. A limiting groove is opened on the inner surface of the connecting cylinder groove near the insertion hole. The through hole extends to the inner surface of the limiting groove. A carbon dioxide absorbent placement tank is slidably inserted into the inner surface of the connecting cylinder groove.

[0008] Preferably, the bottom of the rotating column is fixedly connected to four support shafts in a ring array, and the outer surface of the support shafts is rotatably connected to a rotating baffle. The rotating baffle is located at the bottom of the carbon dioxide absorbent placement tank. The bottom of the rotating column is fixedly connected to four right-angle clamping plates in a ring array, and the end of the rotating baffle away from the support shaft is slidably clamped to the inner surface of the right-angle clamping plate.

[0009] Preferably, the drive assembly includes a connecting slide plate, which is slidably connected to the inner surface of an arc-shaped groove. The connecting slide plate has a connecting groove inside, and a positioning pin is slidably connected inside the connecting groove. The bottom end of the positioning pin extends through the interior of a positioning hole.

[0010] Preferably, a drive plate is fixedly connected to the outer surface of the positioning pin, the drive plate extends through to the outer side of the connecting slide plate, and a clamping spring is fixedly connected between the top of the positioning pin and the upper surface of the connecting slide groove.

[0011] Preferably, the carbon dioxide absorbent placement tank includes a tank body, which is slidably inserted into the inner surface of the connecting cylinder groove. A tank cover is slidably snapped onto the top of the inner surface of the tank body, and an isolation net that runs vertically through the middle of the tank cover is fixedly connected.

[0012] Preferably, a limiting slide is fixedly connected to the outer surface of the tank body, the outer surface of the limiting slide is slidably connected to the inner surface of the limiting slide groove, a connecting hole is provided at the bottom of the limiting slide, the connecting hole, the guiding hole and the guiding groove are interconnected, the connecting hole extends into the interior of the tank body and an isolation mesh is fixedly connected to the inner surface.

[0013] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0014] 1. In this utility model, the function of changing carbon dioxide absorbents while the anesthesia machine is continuously working is realized through the cooperation of the rotating column, the drive assembly, the connecting plug, and multiple carbon dioxide absorbent placement canisters. When the carbon dioxide absorbents in two of the carbon dioxide absorbent placement canisters become ineffective, the drive plate is pushed, causing the positioning plug to disengage from the positioning hole. The drive assembly drives the rotating column to rotate around the connecting plug. During the rotation, the tops of the other two carbon dioxide absorbent placement canisters that were not working gradually become connected to the air inlet and outlet, and the bottoms become connected to both ends of the connecting groove. In this way, the gas exhaled by the patient can flow into the new carbon dioxide absorbent placement canister containing effective absorbents. This realizes the rapid replacement of carbon dioxide absorbent placement canisters without stopping the machine, avoiding the adverse effects on the patient caused by the interruption of mechanical ventilation, and ensuring the safety and continuity of the anesthesia process.

[0015] 2. In this utility model, the cooperation between the support shaft at the bottom of the rotating column, the rotating baffle, and the right-angle clamp facilitates the replacement of the expired carbon dioxide absorbent storage tank. When it is necessary to replace the expired carbon dioxide absorbent storage tank, pull the rotating baffle to make it rotate around the support shaft. During the rotation, the rotating baffle gradually disengages from the right-angle clamp and rotates away from the bottom of the carbon dioxide absorbent storage tank. At this time, the carbon dioxide absorbent storage tank can be easily removed from the connecting cylinder groove, and then the carbon dioxide absorbent inside the storage tank can be replaced. After the replacement is completed, the carbon dioxide absorbent storage tank is reinserted into the connecting cylinder groove, and then the rotating baffle is rotated back and clamped into the inside of the right-angle clamp, which can fix the position of the carbon dioxide absorbent storage tank, greatly improving the work efficiency of replacing absorbent. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the carbon dioxide absorber of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the cylindrical cover and rotating column of this utility model;

[0018] Figure 3 This is a schematic diagram of the bottom structure of the rotating column of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the carbon dioxide absorbent placement tank of this utility model;

[0020] Figure 5 This is a cross-sectional structural diagram of the drive component of this utility model.

[0021] Legend: 1. Cylinder cover; 11. Air inlet; 12. Air outlet; 13. Hook; 14. Arc-shaped slide groove; 15. Positioning insertion hole; 16. Connecting post; 17. Guide groove; 2. Rotating column; 21. Drive assembly; 211. Connecting slide plate; 212. Connecting slide groove; 213. Positioning post; 214. Drive plate; 215. Tightening spring; 22. Insertion hole; 221. Guide hole; 23. Connecting cylinder groove; 24. Limiting slide groove; 25. Carbon dioxide absorbent placement tank; 251. Tank body; 252. Tank cover; 253. Isolation net one; 254. Connecting hole; 255. Isolation net two; 26. Support shaft; 27. Rotating baffle; 28. Right angle clamping plate. Detailed Implementation

[0022] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0024] Example 1: As Figure 1 , Figure 2 and Figure 3As shown, this utility model provides a technical solution: It includes a cylindrical cover 1, with a hook 13 fixedly connected to the upper rear side of the outer surface of the cylindrical cover 1; an air inlet 11 fixedly connected to the top left side of the cylindrical cover 1; an air outlet 12 fixedly connected to the top right side of the cylindrical cover 1; an arc-shaped groove 14 formed on the lower front side of the outer surface of the cylindrical cover 1; positioning insertion holes 15 formed on both the left and right sides of the lower surface of the arc-shaped groove 14; a rotating column 2 rotatably connected to the inner surface of the cylindrical cover 1; a driving assembly 21 fixedly connected to the lower front side of the outer surface of the rotating column 2; the driving assembly 21 rotatably connected to the inner surface of the arc-shaped groove 14; a connecting post 16 fixedly connected to the middle of the upper surface of the inner wall of the cylindrical cover 1; a through-hole 17 formed at the bottom of the connecting post 16; and a through-hole 22 formed in the middle of the rotating column 2; the outer surface of the connecting post 16 is connected to the insertion hole 22. The inner surface of the hole 22 is rotatably connected. The bottom of the inner surface of the insertion hole 22 is provided with four through holes 221 in an annular array. The inner annular array of the rotating column 2 is provided with four vertically penetrating connecting cylinder grooves 23. The inner surface of the connecting cylinder groove 23 is provided with a limiting groove 24 on the side near the insertion hole 22. The through holes 221 penetrate to the inner surface of the limiting groove 24. The inner surface of the connecting cylinder groove 23 is slidably inserted into a carbon dioxide absorbent placement tank 25. The bottom of the rotating column 2 is fixedly connected with four support shafts 26 in an annular array. The outer surface of the support shafts 26 is rotatably connected with a rotating baffle 27. The rotating baffle 27 is set at the bottom of the carbon dioxide absorbent placement tank 25. The bottom of the rotating column 2 is fixedly connected with four right-angle clamping plates 28 in an annular array. The end of the rotating baffle 27 away from the support shaft 26 is slidably clamped onto the inner surface of the right-angle clamping plate 28.

[0025] The effect achieved by the entire embodiment 1 is as follows: The above structure builds the main frame of the entire direct-hanging carbon dioxide absorber. The hook 13 makes it convenient to hang the absorber directly in a suitable position on the anesthesia machine. In the initial state, the positioning insert 213 is inserted into the positioning insert 15 under the action of the tightening spring 215, fixing the position of the rotating column 2, so that the two carbon dioxide absorbent placement canisters 25 are in working state. The patient's exhaled gas enters from the air inlet 11 and is connected to the two carbon dioxide absorbent placement canisters 25 through the guide groove 17 at the bottom of the connecting insert 16. After the carbon dioxide is absorbed by the absorbent, the purified gas is discharged from the air outlet 12.

[0026] Example 2: Figure 4As shown, this utility model provides a technical solution: a carbon dioxide absorbent placement tank 25 includes a tank body 251, which is slidably inserted into the inner surface of the connecting cylinder groove 23. A tank cover 252 is slidably snapped onto the top of the inner surface of the tank body 251. An isolation net 253 that runs vertically through the middle of the tank cover 252 is fixedly connected. A limiting slide is fixedly connected to the outer surface of the tank body 251. The outer surface of the limiting slide is slidably connected to the inner surface of the limiting slide groove 24. A connecting hole 254 is opened at the bottom of the limiting slide. The connecting hole 254, the through hole 221, and the through groove 17 are interconnected. The connecting hole 254 extends into the interior of the tank body 251 and an isolation net 255 is fixedly connected to the inner surface.

[0027] The overall effect of embodiment 2 is as follows: the tank 251 is used to hold carbon dioxide absorbent; the tank cover 252, together with the isolation net 253, can prevent the absorbent from overflowing and allow the gas to enter the tank 251 smoothly; the limiting slide bar and the limiting slide groove 24 cooperate to ensure that the tank 251 slides stably and accurately in the connecting cylinder groove 23; the isolation net 255 further prevents the absorbent from being lost with the airflow, and at the same time allows the gas after the absorbent has absorbed carbon dioxide to be smoothly discharged through the connecting hole 254 and enter the subsequent gas flow path.

[0028] Example 3: As Figure 5 As shown, this utility model provides a technical solution: the drive assembly 21 includes a connecting slide plate 211, which is slidably connected to the inner surface of the arc-shaped slide groove 14. A connecting slide groove 212 is provided inside the connecting slide plate 211. A positioning pin 213 is slidably connected inside the connecting slide groove 212. The bottom end of the positioning pin 213 extends into the interior of the positioning hole 15. A drive plate 214 is fixedly connected to the outer surface of the positioning pin 213. The drive plate 214 extends to the outer side of the connecting slide plate 211. A clamping spring 215 is fixedly connected between the top end of the positioning pin 213 and the upper surface of the connecting slide groove 212.

[0029] The effect achieved by the entire embodiment 3 is as follows: when it is necessary to switch the working state of the carbon dioxide absorbent placement tank 25, the drive plate 214 is pulled outward. The drive plate 214 drives the positioning pin 213 to overcome the elastic force of the top spring 215 and pull it out of the positioning hole 15. At this time, the connecting slide plate 211 can slide in the arc-shaped slide groove 14, thereby driving the rotating column 2 to rotate around the connecting pin 16, realizing the switching of different working states of the carbon dioxide absorbent placement tank 25. After the switching is completed, the drive plate 214 is released, the top spring 215 pushes the positioning pin 213 to re-insert into the positioning hole 15, and fixes the position of the rotating column 2.

[0030] The working principle of the entire device is as follows: When the anesthesia machine is working, the mixed gas exhaled by the patient enters the cylinder 1 through the air inlet 11. After entering, the mixed gas passes through the isolation net 253 in the middle of the canister cover and smoothly enters the canister 251 of the left carbon dioxide absorbent placement canister 25. In the canister 251, the carbon dioxide in the mixed gas reacts chemically with the absorbent and is absorbed. The gas that has undergone preliminary purification flows out from the connection hole 254 at the bottom of the left carbon dioxide absorbent placement canister 25 and enters the guide groove 17 through the guide hole 221. The gas that enters the guide groove 17 then flows into the canister 251 of the right carbon dioxide absorbent placement canister 25 through the guide hole 221 and the connection hole 254 on the right side. In the right canister 251, the gas undergoes the carbon dioxide absorption process again to achieve further purification. Finally, the gas that has undergone two purifications passes through the isolation net 253 at the top of the right carbon dioxide absorbent placement canister 25 and is then discharged through the air outlet 12, returning to the anesthesia machine circuit to complete the entire gas purification process.

[0031] When it is detected that the absorbent in two of the working carbon dioxide absorbent placement canisters 25 has failed, medical staff pull the drive plate 214, and the positioning pin 213 disengages from the positioning hole 15. The drive assembly 21 drives the rotating column 2 to rotate around the connecting pin 16. During the rotation, the top of the other two carbon dioxide absorbent placement canisters 25 that were not working gradually connects with the air inlet 11 and the air outlet 12, and the bottom connects with both ends of the guide groove 17. When the rotation reaches the appropriate position, the positioning pin 213 is reinserted into the positioning hole 15 under the action of the tightening spring 215, fixing the rotating column 2. The two new carbon dioxide absorbent placement canisters 25 start working, realizing the replacement of carbon dioxide absorbent placement canisters without stopping the machine.

[0032] When it is necessary to replace the absorbent in the expired carbon dioxide absorbent storage tank, pull the rotating baffle 27. The rotating baffle 27 rotates around the support shaft 26, gradually disengaging from the right-angle clamp 28 and turning away from the bottom of the carbon dioxide absorbent storage tank 25. At this time, the carbon dioxide absorbent storage tank 25 can be removed from the connecting cylinder groove 23. After replacing the absorbent, insert the carbon dioxide absorbent storage tank 25 back into the connecting cylinder groove 23, and then rotate the rotating baffle 27 back and lock it into the inside of the right-angle clamp 28 to fix the position of the carbon dioxide absorbent storage tank 25, preparing for the next operation.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A direct-mount carbon dioxide absorber, comprising a cylindrical cover (1), wherein a hook (13) is fixedly connected to the upper rear side of the outer surface of the cylindrical cover (1), an air inlet (11) is fixedly connected to the top left side of the cylindrical cover (1), and an air outlet (12) is fixedly connected to the top right side of the cylindrical cover (1), characterized in that: The outer surface of the barrel cover (1) is provided with an arc-shaped sliding groove (14) below the front side, the lower surface of the arc-shaped sliding groove (14) is provided with a positioning insertion hole (15) on the left and right sides, the inner surface of the barrel cover (1) is rotatably connected with a rotating column (2), the outer surface of the rotating column (2) is fixedly connected with a driving assembly (21) below the front side, the driving assembly (21) is rotatably connected with the inner surface of the arc-shaped sliding groove (14), the inner wall of the barrel cover (1) is fixedly connected with a connecting insertion column (16) on the upper surface of the middle part, the bottom of the connecting insertion column (16) is provided with a left-right penetrating through guide groove (17), the middle part of the rotating column (2) is provided with an up-down penetrating through insertion hole (22), the outer surface of the connecting insertion column (16) is rotatably connected with the inner surface of the insertion hole (22), the inner surface of the insertion hole (22) is annularly provided with four guide holes (221) on the bottom, the inner part of the rotating column (2) is annularly provided with four up-down penetrating through connecting barrel grooves (23), the inner surface of the connecting barrel groove (23) is provided with a limiting sliding groove (24) on the side close to the insertion hole (22), the guide hole (221) penetrates to the inner surface of the limiting sliding groove (24), and the connecting barrel groove (23) is slidably inserted with a carbon dioxide absorbent placing tank (25).

2. A direct-hung carbon dioxide absorber according to claim 1, wherein: The bottom of the rotating column (2) is annularly fixedly connected with four supporting shafts (26), the outer surface of the supporting shaft (26) is rotatably connected with a rotating baffle (27), the rotating baffle (27) is arranged at the bottom of the carbon dioxide absorbent placing tank (25), the bottom of the rotating column (2) is annularly fixedly connected with four right-angle clamping plates (28), and the end, away from the supporting shaft (26), of the rotating baffle (27) is slidably clamped on the inner surface of the right-angle clamping plate (28).

3. A direct-hung carbon dioxide absorber according to claim 1, wherein: The driving assembly (21) comprises a connecting sliding plate (211), the connecting sliding plate (211) is slidably connected with the inner surface of the arc-shaped sliding groove (14), the inner part of the connecting sliding plate (211) is provided with a connecting sliding groove (212), and the inner part of the connecting sliding groove (212) is slidably connected with a positioning insertion column (213).

4. A direct contact CO2 absorber according to claim 3, wherein: The outer surface of the positioning insertion column (213) is fixedly connected with a driving plate (214), the driving plate (214) penetrates to the outer side of the connecting sliding plate (211), and the top end of the positioning insertion column (213) and the upper surface of the connecting sliding groove (212) are fixedly connected with a jacking spring (215).

5. A direct mount carbon dioxide absorber as defined in claim 1, wherein: The carbon dioxide absorbent placing tank (25) comprises a tank body (251), the tank body (251) is slidably inserted into the inner surface of the connecting barrel groove (23), the inner surface of the tank body (251) is slidably clamped with a tank cover (252) at the top end, and the middle part of the tank cover (252) is fixedly connected with an up-down penetrating through isolation net one (253).

6. A direct mount carbon dioxide absorber as claimed in claim 5, wherein: The outer surface of the tank body (251) is fixedly connected with a limiting sliding strip, the outer surface of the limiting sliding strip is slidably connected with the inner surface of the limiting sliding groove (24), the bottom of the limiting sliding strip is provided with a connecting hole (254), the connecting hole (254), the through hole (221) and the through groove (17) are in communication with each other, and the connecting hole (254) penetrates to the inside of the tank body (251) and is fixedly connected with an isolation net two (255) in the inner surface.

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