Anesthetic gas recovery device

By introducing a blower and activated carbon adsorption plate into the anesthetic gas recovery device, the problems of poor breathing and suffocation risk for patients are solved, achieving safe and efficient anesthetic gas recovery and convenient observation and replacement.

CN224220532UActive Publication Date: 2026-05-12JILIN HOSPITAL OF OBSTETRICS & GYNECOLOGY AFFILIATED TO ZHEJIANG UNIV SCHOOL OF MEDICINE (CHANGCHUN OBSTETRICS & GYNECOLOGY HOSPITAL CHANGCHUN MATERNAL & CHILD HEALTH HOSPITAL CHANGCHUN THIRD HOSPITAL)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JILIN HOSPITAL OF OBSTETRICS & GYNECOLOGY AFFILIATED TO ZHEJIANG UNIV SCHOOL OF MEDICINE (CHANGCHUN OBSTETRICS & GYNECOLOGY HOSPITAL CHANGCHUN MATERNAL & CHILD HEALTH HOSPITAL CHANGCHUN THIRD HOSPITAL)
Filing Date
2025-02-05
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

现有的麻醉气体回收装置在使用过程中,患者可能出现呼吸不畅或窒息的风险,且装置安全性不足。

Method used

An anesthetic gas recovery device was designed, comprising a blower, a breathing mask, a recovery tank, and an activated carbon adsorption plate. The blower delivers air and anesthetic gas to the recovery tank, the activated carbon adsorption plate adsorbs the anesthetic gas, and the gas volume in the tank is observed through a support assembly to ensure ventilation inside the breathing mask.

Benefits of technology

This technology allows for the recovery of anesthetic gases while maintaining unobstructed breathing for the patient, reducing the risk of suffocation, improving the safety of the device, and facilitating observation and replacement of the recovery tank.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of anesthetic gas recovery equipment, and particularly discloses an anesthetic gas recovery device which comprises a bottom plate, a mounting box fixedly arranged at the top of the bottom plate, an air blower fixedly arranged at the top of the mounting box, a recovery tank arranged in the mounting box, and a gas outlet arranged in the recovery tank. A breathing mask is arranged between the air blower and the recovery tank through a ventilation assembly, a fixing assembly is arranged on the breathing mask, an adsorption mechanism is arranged in the recovery tank, and a supporting assembly used for containing the recovery tank is arranged in the installation box. By means of the air blower, air can be conveniently conveyed into the breathing mask, anesthetic gas brought out by breathing of a patient can be conveniently conveyed into the recovery tank, the anesthetic gas is adsorbed and recovered by means of the adsorption mechanism, and therefore ventilation is kept in the breathing mask when the anesthetic gas is recovered, and the anesthetic gas recovery efficiency is improved. The patient is prevented from breathing unsmoothly and even suffocating, and the safety of the device is improved.
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Description

Technical Field

[0001] This utility model belongs to the technical field of anesthetic gas recovery equipment, and specifically relates to an anesthetic gas recovery device. Background Technology

[0002] Anesthesiologists ensure that patients undergo surgery smoothly and safely, which is the basic task of anesthesiology clinicians. However, this is only part of the work of modern anesthesiology. Anesthesia work also includes pre- and post-anesthesia preparation and management, monitoring and treatment of critically ill patients, emergency resuscitation, pain management, and other aspects. The scope of work has expanded from the operating room to wards, outpatient clinics, emergency rooms, and other places, and from clinical medical care to teaching and scientific research.

[0003] During the use of anesthetic gases, since the anesthetic gases cannot be completely absorbed, they will be exhaled into the air along with the patient's breath. Over a long period of time, the concentration of anesthetic gases in the room will be high, which will cause harm to the physical and mental health of medical staff, and in severe cases, may even be life-threatening.

[0004] Existing anesthetic gas recovery devices typically work in conjunction with a breathing mask to extract the anesthetic gas exhaled from the patient's mouth and nose, then store the gas in a storage tank for recovery. However, during use, the patient is under anesthesia, and the air inside the breathing mask is being extracted, which may lead to breathing difficulties or even suffocation. This poses certain risks and affects the device's usability. Utility Model Content

[0005] The purpose of this invention is to provide an anesthetic gas recovery device that maintains ventilation inside the breathing mask while recovering anesthetic gas, preventing patients from experiencing breathing difficulties or even suffocation, improving the safety of the device, and making it convenient to use.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An anesthetic gas recovery device includes: a base plate, an installation box fixedly mounted on the top of the base plate, a blower fixedly mounted on the top of the installation box, a recovery tank inside the installation box, a breathing mask provided between the blower and the recovery tank via a ventilation assembly, a fixing assembly on the breathing mask, an adsorption mechanism inside the recovery tank, and a support assembly for placing the recovery tank inside the installation box.

[0008] The adsorption mechanism includes a fixed frame fixedly installed inside the recovery tank, and multiple activated carbon adsorption plates are fixedly installed inside the fixed frame. A ventilation pipe is installed through and fixedly installed on the side wall of the recovery tank. The ventilation pipe is L-shaped and extends upward through the multiple activated carbon adsorption plates at the top. An exhaust port is opened on the recovery tank and is located below the activated carbon adsorption plates. A ventilation opening is opened on the mounting box, and a dustproof net is fixedly installed inside the ventilation opening.

[0009] Preferably, the ventilation assembly includes two connecting pipes fixedly mounted on the breathing mask, the two connecting pipes being connected to the inside of the breathing mask, an air inlet pipe being provided between the blower outlet and one of the connecting pipes, and an air outlet pipe being provided between the other connecting pipe and the ventilation pipe, the air inlet pipe, the air outlet pipe, the connecting pipe and the ventilation pipe being fixedly connected by a connecting assembly.

[0010] Preferably, the connecting component includes a first connecting block and a second connecting block, and the first connecting block and the second connecting block are threadedly connected.

[0011] Preferably, the fixing component includes two fixing members fixedly disposed on the outside of the breathing mask, each fixing member being fixedly disposed with an elastic band, and each of the two elastic bands having a connecting buckle at opposite ends.

[0012] Preferably, the support assembly includes multiple support rods fixedly disposed at the bottom of the mounting box, and the same support base is slidably disposed through the multiple support rods. The top of the support base is provided with a placement groove adapted to the recycling tank, and the bottom of the recycling tank is inserted into the placement groove.

[0013] Preferably, a limit block is fixedly provided at the top of the support rod, and a spring is fixedly sleeved on the support rod. The spring is located below the support base, and the top and bottom of the spring are in close contact with the bottom of the support base and the bottom of the mounting box, respectively.

[0014] Preferably, an observation rod is fixedly installed at the bottom of the support base. The observation rod is L-shaped, and its bottom extends outward through the mounting box. An observation groove adapted to the observation rod is provided on the side wall of the mounting box.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] (1) The use of the blower facilitates the delivery of air into the breathing mask and also facilitates the delivery of anesthetic gas carried out by the patient's breathing to the recovery tank. The use of the adsorption mechanism allows for the adsorption and recovery of anesthetic gas, thereby maintaining ventilation in the breathing mask during the recovery of anesthetic gas, preventing the patient from experiencing difficulty breathing or even suffocation, and improving the safety of the device.

[0017] (2) By using the spring, support rod and support base together, when the amount of anesthetic gas adsorbed in the recovery tank increases, the overall weight of the recovery tank increases, which makes it easier for the compression spring of the recovery tank to move downward. In addition, by using the observation rod, the height of the observation rod in the observation slot can be checked, which makes it easy to observe the amount of anesthetic gas in the recovery tank and convenient to use. Attached Figure Description

[0018] Figure 1 This is one of the perspective views of this utility model;

[0019] Figure 2 This is a second perspective view of the present invention;

[0020] Figure 3 This is a cross-sectional view of the mounting box and recycling tank in this utility model;

[0021] Figure 4 for Figure 1 Enlarged view of the structure at point A in the middle;

[0022] In the diagram: 1. Base plate; 2. Mounting box; 3. Blower; 4. Breathing mask; 5. Recovery tank; 6. Connecting pipe; 7. Fixing frame; 8. Activated carbon adsorption plate; 9. Ventilation pipe; 10. Air inlet pipe; 11. Air outlet pipe; 12. First connecting block; 13. Second connecting block; 14. Fixing component; 15. Elastic band; 16. Support rod; 17. Support base; 18. Spring; 19. Observation rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1:

[0025] Please see Figures 1-4 As shown, an anesthetic gas recovery device includes: a base plate 1, an installation box 2 fixedly installed on the top of the base plate 1, a blower 3 fixedly installed on the top of the installation box 2, a recovery tank 5 inside the installation box 2, a breathing mask 4 between the blower 3 and the recovery tank 5 through a ventilation assembly, a fixing assembly on the breathing mask 4, an adsorption mechanism inside the recovery tank 5, and a support assembly for placing the recovery tank 5 inside the installation box 2.

[0026] The adsorption mechanism includes a fixed frame 7 fixedly installed inside the recovery tank 5. Multiple activated carbon adsorption plates 8 are fixedly installed inside the fixed frame 7. A ventilation pipe 9 is installed through and fixedly installed on the side wall of the recovery tank 5. The ventilation pipe 9 is L-shaped. The top of the ventilation pipe 9 passes through multiple activated carbon adsorption plates 8 and extends upward. An exhaust port is opened on the recovery tank 5 and is located below the activated carbon adsorption plates 8. A ventilation opening is opened on the installation box 2 and a dustproof net is fixedly installed inside the ventilation opening.

[0027] As can be seen from the above, the blower 3 is existing technology and will not be described in detail here. The breathing mask 4 is worn over the patient's mouth and nose by the fixing component. The blower 3 delivers air into the breathing mask 4 to ensure that the patient can breathe normally and avoid breathing difficulties or even suffocation. At the same time, driven by the blower 3, the air and the anesthetic gas brought out by the patient's breathing are delivered to the recovery tank 5. After the air mixed with anesthetic gas enters the recovery tank 5, the anesthetic gas is adsorbed by multiple activated carbon adsorption plates 8 and recovered into the recovery tank 5. The air that has been adsorbed and filtered is discharged through the exhaust port and the vent, thus completing the recovery of anesthetic gas.

[0028] Specifically, regarding the aforementioned ventilation components, please refer to... Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the ventilation assembly includes two connecting pipes 6 fixedly mounted on the breathing mask 4. The two connecting pipes 6 are connected to the inside of the breathing mask 4. An air inlet pipe 10 is provided between the air outlet of the blower 3 and one of the connecting pipes 6, and an air outlet pipe 11 is provided between the other connecting pipe 6 and the ventilation pipe 9. The air inlet pipe 10, the air outlet pipe 11, the connecting pipe 6 and the ventilation pipe 9 are all fixedly connected by a connecting assembly.

[0029] The connecting assembly includes a first connecting block 12 and a second connecting block 13, which are threadedly connected.

[0030] As can be seen from the above, the blower 3 delivers air to the breathing mask 4 through the air inlet pipe 10 and the connecting pipe 6. The anesthetic gas exhaled by the patient, mixed with the air, is driven by the blower 3 and delivered to the recovery tank 5 through the connecting pipe 6, the air outlet pipe 11, and the ventilation pipe 9. This ensures smooth breathing for the patient while recovering the anesthetic gas. The use of the first connecting block 12 and the second connecting block 13 facilitates the assembly and disassembly of the air outlet pipe 11, the air inlet pipe 10, the air outlet pipe 11, the connecting pipe 6, and the ventilation pipe 9. This makes it easy to remove the breathing mask 4, clean, disinfect, and sterilize it, and reuse the breathing mask 4. It also makes it easy to remove the recovery tank 5 after it is filled with anesthetic gas for convenient use.

[0031] Specifically, regarding the aforementioned support components, please refer to... Figure 1 and Figure 3 As shown, the support assembly includes multiple support rods 16 fixedly installed at the bottom of the mounting box 2. The same support base 17 is slidably installed through the multiple support rods 16. The top of the support base 17 is provided with a placement groove that is adapted to the recycling tank 5. The bottom of the recycling tank 5 is inserted into the placement groove.

[0032] A limit block is fixedly installed at the top of the support rod 16, and a spring 18 is fixedly sleeved on the support rod 16. The spring 18 is located below the support base 17, and the top and bottom of the spring 18 are in close contact with the bottom of the support base 17 and the bottom of the mounting box 2, respectively.

[0033] An observation rod 19 is fixedly installed at the bottom of the support base 17. The observation rod 19 is L-shaped and extends outward through the bottom of the mounting box 2. An observation groove adapted to the observation rod 19 is provided on the side wall of the mounting box 2.

[0034] As can be seen from the above, the weight of the recovery tank 5 increases after it is filled with anesthetic gas, which causes the support base 17 to move downward and compress the spring 18. After the support base 17 moves downward, it drives the observation rod 19 to move downward from the highest point of the observation slot. When the observation rod 19 moves to the bottom of the observation slot, the recovery tank 5 is filled with anesthetic gas, which makes it easy to remind the user to take out the recovery tank 5 filled with anesthetic gas and replace it with an empty recovery tank 5.

[0035] Example 2:

[0036] refer to Figure 1 , Figure 2 and Figure 4 As shown, the fixing assembly includes two fixing members 14 fixedly installed on the outside of the breathing mask 4. Each fixing member 14 is fixedly equipped with an elastic band 15, and each elastic band 15 has a connecting buckle at one end opposite to the other.

[0037] As can be seen from the above, the use of fastener 14 and elastic band 15 makes it easy to fix the breathing mask 4 to the patient's mouth and nose. The use of the connecting buckle makes it easy to fix and disassemble the two ends of the elastic band 15, which is convenient to use.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for recovering anesthetic gases, characterized in that, include: A base plate (1) is provided with a mounting box (2) fixedly installed on the top of the base plate (1). A blower (3) is fixedly installed on the top of the mounting box (2). A recycling tank (5) is provided inside the mounting box (2). A breathing mask (4) is provided between the blower (3) and the recycling tank (5) through a ventilation assembly. A fixing assembly is provided on the breathing mask (4). An adsorption mechanism is provided inside the recycling tank (5). A support assembly for placing the recycling tank (5) is provided inside the mounting box (2). The adsorption mechanism includes a fixed frame (7) fixedly installed inside the recovery tank (5), and multiple activated carbon adsorption plates (8) fixedly installed inside the fixed frame (7). A ventilation pipe (9) is fixedly installed through and fixedly installed on the side wall of the recovery tank (5). The ventilation pipe (9) is L-shaped. The top of the ventilation pipe (9) passes through multiple activated carbon adsorption plates (8) and extends upward. An exhaust port is opened on the recovery tank (5). The exhaust port is located below the activated carbon adsorption plates (8). A ventilation opening is opened on the installation box (2). A dustproof net is fixedly installed inside the ventilation opening.

2. The anesthetic gas recovery device according to claim 1, characterized in that: The ventilation assembly includes two connecting pipes (6) fixedly mounted on the breathing mask (4). The two connecting pipes (6) are connected to the inside of the breathing mask (4). An air inlet pipe (10) is provided between the air outlet of the blower (3) and one of the connecting pipes (6). An air outlet pipe (11) is provided between the other connecting pipe (6) and the ventilation pipe (9). The air inlet pipe (10), the air outlet pipe (11), the connecting pipe (6) and the ventilation pipe (9) are all fixedly connected by a connecting assembly.

3. The anesthetic gas recovery device according to claim 2, characterized in that: The connecting assembly includes a first connecting block (12) and a second connecting block (13), which are threadedly connected to each other.

4. The anesthetic gas recovery device according to claim 1, characterized in that: The fixing assembly includes two fixing members (14) fixedly disposed on the outside of the breathing mask (4). Each fixing member (14) is fixedly disposed with an elastic band (15), and each of the two elastic bands (15) is provided with a connecting buckle at one end opposite to the other.

5. The anesthetic gas recovery device according to claim 1, characterized in that: The support assembly includes multiple support rods (16) fixedly installed at the bottom of the mounting box (2). The same support base (17) is slidably installed through the multiple support rods (16). The top of the support base (17) is provided with a placement groove that is compatible with the recycling tank (5). The bottom of the recycling tank (5) is inserted into the placement groove.

6. The anesthetic gas recovery device according to claim 5, characterized in that: A limit block is fixedly installed on the top of the support rod (16), and a spring (18) is fixedly sleeved on the support rod (16). The spring (18) is located below the support seat (17), and the top and bottom of the spring (18) are in close contact with the bottom of the support seat (17) and the bottom of the mounting box (2), respectively.

7. The anesthetic gas recovery device according to claim 5, characterized in that: An observation rod (19) is fixedly installed at the bottom of the support base (17). The observation rod (19) is L-shaped and extends outward through the mounting box (2). An observation groove adapted to the observation rod (19) is provided on the side wall of the mounting box (2).