Filtering device for anesthesia breathing circuit

Abstract

The utility model discloses an anesthesia breathing circuit filter device, relates to the technical field of carbon dioxide filtration, it includes: filter shell and shell cover, filter shell one side is provided with air inlet pipe, the inside of filter shell is divided into chamber 1 and chamber 2 by splitter plate, chamber 1 and chamber 2 both communicate with the air inlet pipe, and the shell cover is provided with the air inlet pipe. The inner wall of the first cavity and the inner wall of the second cavity are each provided with three limiting grooves, the inner walls of the three limiting grooves are each provided with a frame, the inner walls of the three frames are each fixedly connected with a filter screen, and the lower end of the shell cover is fixedly connected with a connecting block. By arranging the filter shell, the shell cover, the splitter plate and the filter screen, the interior of the filter shell can be divided into two cavities, gas can fully flow through the two cavities, impurities and particulate matter are effectively removed through the filter screen, the gas filtering efficiency is improved, meanwhile, excessive concentration of the gas in a single cavity is avoided, the filtering burden is reduced, and the service life of the gas filter is prolonged. The overall filtering effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to carbon dioxide filtering technical field, especially relate to anaesthetic breathing circuit filter device. BACKGROUND

[0002] Anaesthetic breathing circuit is formed with the gas output port of anesthetic machine and patient respiratory tract and is called anaesthetic breathing circuit.

[0003] In the process of applying for a patent, the search found that the Chinese patent with patent No.CN216536449U: a breathing circuit carbon dioxide filter device for anesthetic machine, including: main casing, and the bottom cover connected in the opening position of main casing bottom;Wherein, the inside of main casing is divided into two chambers through the partition, and the side of main casing is provided with the inlet pipe and the chamber on one side of partition intercommunication, the other side of main casing is provided with the gas outlet and the chamber on the other side of partition intercommunication;The position close to the inlet pipe and the gas outlet in main casing is installed with filter screen and breather board;The hole plate is installed on the bottom cover, and the hole plate is filled with carbon dioxide absorbent between the chamber in main casing.The breathing circuit carbon dioxide filter device for anesthetic machine, increase the contact time of carbon dioxide exhaled by patient and absorbent, improve the adsorption efficiency, and the whole device is simple to install, and the carbon dioxide absorbent is also convenient to replace, provide convenience for daily nursing of medical staff.

[0004] The above scheme in the process of using, through two chambers carbon dioxide absorbent and filter screen filter carbon dioxide, but the replacement of filter screen is more inconvenient, in addition, when the filter screen in one of the chambers is blocked, the filtering efficiency and efficiency of the other chamber will be affected, which is inconvenient to use. Utility model content

[0005] In view of the deficiency of prior art, the utility model provides anaesthetic breathing circuit filter device, through setting up filter casing, shell lid, shunt plate and filter screen, can divide into two chambers in filter casing, make gas can flow through two chambers fully, and remove impurity and particulate matter through filter screen effectively, improve the filtering efficiency of gas, also avoid gas in single chamber excessive concentration, reduce the filtering burden, improve the overall filtering effect.

[0006] The utility model discloses still provide with above-mentioned anesthesia breathing circuit filter device, include: filter casing and shell cover, the one side of filter casing is provided with air inlet pipe, the inside of filter casing is separated into chamber one and chamber two through the shunt plate, and chamber one and chamber two all are linked with air inlet pipe, the inner wall of chamber one and chamber two all is provided with three limit slot, the inner wall of three limit slot all is provided with frame, three the inner wall of frame all is fixedly connected with filter screen, the upper end of filter casing is provided with connecting groove, the lower end of shell cover is fixedly connected with connecting block.

[0007] According to the anesthesia breathing circuit filter device, the connecting block is adapted to the inner wall of the connecting groove, and the connecting block is in sliding connection with the connecting groove.

[0008] According to the anesthesia breathing circuit filter device, the three filter screens are filled with two kinds of carbon dioxide absorbents, and the two kinds of carbon dioxide absorbents are divided into white and pink two colors.

[0009] According to the anesthesia breathing circuit filter device, the three frames are adapted to the inner walls of the three limit slots, and the three frames are in sliding connection with the three limit slots.

[0010] According to the anesthesia breathing circuit filter device, the inner wall of the filter casing is provided with a carbon dioxide sensor, the output end of the carbon dioxide sensor is connected with two probes, and one end of the two probes penetrates one side of the chamber one and the chamber two respectively.

[0011] According to the anesthesia breathing circuit filter device, the shell cover is arranged at the upper end of the filter casing, a fastening screw is threadedly connected to the upper end of the shell cover, and the fastening screw penetrates the shell cover and is threadedly connected to the upper end of the filter casing.

[0012] According to the anesthesia breathing circuit filter device, the filter casing is provided with an air outlet pipe at one end away from the air inlet pipe, and the air outlet pipe is in communication with the chamber one and the chamber two.

[0013] The utility model has the following beneficial effects:

[0014] 1、 in the utility model, filter casing is separated into two chambers through the shunt plate, improve the filtration effect and efficiency of gas, also avoid gas in single chamber excessive concentration, reduce the filtration burden, improve the overall filtration effect.

[0015] 2、 through setting up frame, filter screen and carbon dioxide absorbent, can filter gas for many times, convenient for user to replace filter screen simultaneously.

[0016] Additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood by the practice of the utility model. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0018] Figure 1 This is a top-view perspective view of the anesthesia breathing circuit filtering device of this utility model;

[0019] Figure 2 This is a perspective view of the disassembled state of the anesthesia breathing circuit filter device of this utility model;

[0020] Figure 3 This is a three-dimensional view of the internal structure of the filter housing of the anesthesia breathing circuit filter device of this utility model;

[0021] Figure 4 This is a top-view structural diagram of the anesthesia breathing circuit filtration device of this utility model.

[0022] Legend:

[0023] 1. Filter housing; 2. Housing cover; 3. Inlet pipe; 4. Diverter plate; 5. Chamber 1; 6. Chamber 2; 7. Limiting groove; 8. Frame; 9. Filter screen; 10. Connecting groove; 11. Connecting block; 101. Carbon dioxide sensor; 102. Probe; 201. Fastening screw; 12. Outlet pipe. Detailed Implementation

[0024] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0025] Reference Figures 1-4 The present invention relates to an anesthesia breathing circuit filtration device, comprising: a filter housing 1 and a cover 2, wherein the cover 2 is made of transparent material, an air inlet pipe 3 is provided on one side of the filter housing 1, the interior of the filter housing 1 is divided into a first chamber 5 and a second chamber 6 by a diverter plate 4, and both the first chamber 5 and the second chamber 6 are connected to the air inlet pipe 3, the inner walls of the first chamber 5 and the second chamber 6 are each provided with three limiting grooves 7, the inner walls of the three limiting grooves 7 are each provided with a frame 8, the inner walls of the three frames 8 are each fixedly connected with a filter screen 9, the upper end of the filter housing 1 is provided with a connecting groove 10, and the lower end of the cover 2 is fixedly connected with a connecting block 11.

[0026] The connecting block 11 is adapted to the inner wall of the connecting groove 10, and the connecting block 11 is slidably connected to the connecting groove 10. The connecting block 11 facilitates the improvement of the sealing between the filter housing 1 and the cover 2.

[0027] The three filter screens 9 are filled with two kinds of carbon dioxide absorbents, and the two kinds of carbon dioxide absorbents are divided into white and pink colors. The white and pink carbon dioxide absorbents can absorb carbon dioxide in the gas, and the color of the carbon dioxide absorbent will change after the carbon dioxide absorbent is saturated, thereby reminding the staff to replace the carbon dioxide absorbent.

[0028] The three frames 8 are adapted to the inner walls of the three limiting grooves 7, and the three frames 8 are in sliding connection with the three limiting grooves 7. Through the sliding connection between the frame 8 and the limiting groove 7, the filter screen 9 can be easily pulled out of the filter shell 1 and replaced.

[0029] The inner wall of the filter shell 1 is provided with a carbon dioxide sensor 101, and the output end of the carbon dioxide sensor 101 is connected with two probes 102, and one end of the two probes 102 penetrates one side of the chamber one 5 and the chamber two 6 respectively. The carbon dioxide sensor 101 and the two probes 102 can monitor the carbon dioxide content in the gas.

[0030] The shell cover 2 is arranged at the upper end of the filter shell 1, and the upper end of the shell cover 2 is threadedly connected with a fastening screw 201, and the fastening screw 201 penetrates the shell cover 2 and is threadedly connected with the upper end of the filter shell 1. The fastening screw 201 can be used to fix the shell cover 2 on the filter shell 1.

[0031] The filter shell 1 is provided with an air outlet pipe 12 away from the air inlet pipe 3, and the air outlet pipe 12 is in communication with the chamber one 5 and the chamber two 6. The air outlet pipe 12 can be used to discharge the filtered gas out of the filter shell 1.

[0032] Working principle: when in use, the carbon dioxide gas exhaled by the patient passes through the air inlet pipe 3 and is uniformly introduced into the chamber one 5 and the chamber two 6 under the shunting effect of the shunt plate 4, at this time the gas will contact the three filter screens 9, remove the impurities and particulate matters in the gas, and ensure that the gas is more pure. In addition, in the process of passing through the three filter screens 9, the carbon dioxide absorbent will be in full contact with the gas, effectively absorbing the carbon dioxide in the gas, improving the adsorption efficiency, and discharging the filtered gas through the air outlet pipe 12. In addition, the carbon dioxide content of the gas in the chamber one 5 and the chamber two 6 is detected by the carbon dioxide sensor 101 and the probe 102 during the filtering process, so that the user can observe.

[0033] The above describes the embodiments of the utility model in detail in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by those skilled in the art without departing from the purpose of the utility model.

Claims

1. An anaesthetic breathing circuit filter device comprising: Filter shell (1) and shell cover (2), characterized in that, one side of the filter shell (1) is provided with air inlet pipe (3), the inside of the filter shell (1) is divided into chamber one (5) and chamber two (6) by flow distribution plate (4), and chamber one (5) and chamber two (6) are communicated with air inlet pipe (3), the inner wall of chamber one (5) and chamber two (6) is provided with three limiting grooves (7), the inner wall of three limiting grooves (7) is provided with frame (8), three frame (8) is fixedly connected with filter screen (9), the upper end of the filter shell (1) is provided with connecting groove (10), the lower end of the shell cover (2) is fixedly connected with connecting block (11).

2. An anaesthetic breathing circuit filter apparatus according to claim 1, characterised in that, The connecting block (11) is adapted to the inner wall of the connecting groove (10), and the connecting block (11) and the connecting groove (10) are connected.

3. The anesthesia breathing circuit filter apparatus of claim 1, wherein, Three filter screens (9) are filled with two kinds of carbon dioxide absorbents, and the two kinds of carbon dioxide absorbents are divided into white and pink.

4. The anesthesia breathing circuit filter apparatus of claim 1, wherein, Three frame (8) is adapted to the inner wall of three limiting groove (7), and three frame (8) is connected with three limiting groove (7).

5. The anesthesia breathing circuit filter apparatus of claim 1, wherein, The inner wall of the filter shell (1) is provided with carbon dioxide sensor (101), the output end of the carbon dioxide sensor (101) is connected with two probes (102), and one end of the two probes (102) penetrates one side of chamber one (5) and chamber two (6) respectively.

6. The anesthesia breathing circuit filter apparatus of claim 1, wherein, The shell cover (2) is arranged on the upper end of the filter shell (1), the shell cover (2) is threadedly connected with the fastening screw (201) at the upper end, and the fastening screw (201) penetrates the shell cover (2) and is threadedly connected with the upper end of the filter shell (1).

7. The anesthesia breathing circuit filter apparatus of claim 1, wherein, The filter shell (1) is provided with air outlet pipe (12) away from the air inlet pipe (3), and the air outlet pipe (12) is communicated with chamber one (5) and chamber two (6).

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