CN219539177U

CN219539177U - Absorption filter device of anesthesia machine

Info

Publication number: CN219539177U
Application number: CN202320365919.5U
Authority: CN
Inventors: 赵澜; 刘旭
Original assignee: Hebei Hongyue Medical Technology Co ltd
Current assignee: Hebei Hongyue Medical Technology Co ltd
Priority date: 2023-03-02
Filing date: 2023-03-02
Publication date: 2023-08-18
Anticipated expiration: 2033-03-02

Abstract

The utility model provides an absorption filter equipment of anesthesia machine, relates to medical equipment technical field, and it includes casing, intake pipe and outlet duct, the casing is the tubular structure that has the cavity in inside, and casing upper end and lower extreme set up outlet duct and intake pipe respectively, intake pipe and outlet duct are linked together with the cavity of casing; the shell is filled with adsorption medium, and the inner sides of the air outlet pipe and the air inlet pipe are provided with filter cotton. The absorption filter device can realize double functions of absorbing and filtering gas by the filter cotton and the filling adsorption medium arranged in the shell, and has the characteristics of safety, high efficiency and simplicity in replacement.

Description

Absorption filter device of anesthesia machine

Technical Field

The utility model relates to the technical field of medical equipment, in particular to an absorption and filtration device of a respiratory anesthesia machine.

Background

The general anesthesia is performed by using an anesthesia machine, which is a common general anesthesia technique with safe and rapid use process; the respiratory anesthesia machine carries out respiratory drug administration on the gaseous anesthetic to realize general anesthesia of the patient. The filter on the anesthesia machine is arranged on the air inlet pipeline to filter the air entering the anesthesia machine, so that the number of air particles reaches the number required by the standard. The current universal filter is of a tank-shaped structure, the filter medium is filled in the tank, the filter medium is repeatedly used on the anesthesia machine until the filter medium fails, and then medical staff opens the cylinder cover to pour out the failed filter medium, fills new filter medium and is reinstalled on the anesthesia machine pipeline for continuous use. Not only the filling process is complicated, but also various tiny dust and bacteria can be reserved in the filter along with the repeated use of the respiratory anesthesia machine, and the harmful substances are easy to be inhaled into the respiratory system of a patient along with the gas, so that secondary infection is caused; and can also cause cross-infection between patients.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, and provides an absorption and filtration device of a respiratory anesthesia machine, which can realize the dual functions of absorbing and filtering gas by the filter cotton and the filling adsorption medium arranged in the shell and has the characteristics of safety, high efficiency and simple replacement.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the absorption and filtration device of the anesthesia machine comprises a shell, an air inlet pipe and an air outlet pipe, wherein the shell is of a cylindrical structure with a cavity inside, the upper end and the lower end of the shell are respectively provided with the air outlet pipe and the air inlet pipe, and the air inlet pipe and the air outlet pipe are communicated with the cavity of the shell; the shell is filled with adsorption medium, and the inner side of the air outlet pipe or/and the air inlet pipe is provided with filter cotton.

The absorption and filtration device of the anesthesia machine is characterized in that the absorption medium is calcium lime or carbon lime.

According to the absorption and filtration device of the anesthesia machine, the guide vane is suspended above the air inlet pipe, the shape of the guide vane is matched with the inner diameter of the air inlet pipe, and the size of the guide vane is larger than the inner diameter of the air inlet pipe.

The absorption filter device of the anesthesia machine is characterized in that the guide vane is of a sheet-shaped structure with an arc surface, and the arc surface faces the air inlet pipe.

According to the absorption and filtration device of the anesthesia machine, the periphery of the guide vane is provided with the clamping blocks, the bottom of the shell is provided with the clamping grooves corresponding to the clamping blocks, and the gap between the guide vane and the edge of the inner cavity of the shell is 3-6mm when the guide vane is clamped at the bottom of the shell.

The absorption and filtration device of the anesthesia machine is characterized in that a plurality of inserting blocks are arranged on the periphery of the guide vane, and the height of each inserting block is 5-10mm; the bottom of the shell is provided with a slot corresponding to the plug block; when the guide vane is inserted into the bottom of the shell, the gap between the guide vane and the edge of the inner cavity of the shell is 3-6mm.

The absorption and filtration device of the anesthesia machine is characterized in that the air outlet pipe and the air inlet pipe are of a double-layer sleeve structure, and the inner pipes of the air outlet pipe and the air inlet pipe are matched with the pipeline of the anesthesia machine; caps are arranged on the inner pipes of the air outlet pipe and the air inlet pipe.

The absorption and filtration device of the anesthesia machine is characterized in that the shell, the air inlet pipe and the air outlet pipe are of an integrated structure.

One or two layers of filter cotton are arranged at the position communicated with an air outlet pipe or an air inlet pipe in the shell, and the adsorption medium is filled in the shell, so that the adsorption and filtration device has the dual functions of adsorption and filtration. The adsorption medium is carbon dioxide adsorbent, specifically calcium lime or carbon lime, and the two adsorption media have the characteristics of full and rapid reaction and strong adsorption performance. The guide vane at the inlet pipe opening is used as a flaky air distributor to guide and disperse the gas into the whole shell space, so that the clean gas is discharged from the upper outlet pipe after the carbon dioxide in the gas fully contacts and reacts with the adsorption medium; the arrangement of the guide vane can prevent the formation of short circuit of the air path and influence the absorption efficiency.

The absorption and filtration device is a disposable sterile product, is safe and has good absorption and filtration effects, the absorption and filtration device is arranged on an anesthesia machine before operation, and is directly abandoned after operation, so that cross infection among patients caused by commonly using one filter in a plurality of operations at present is avoided. The air inlet pipe and the air outlet pipe on the device are sleeve structures matched with the pipelines of the anesthesia machine, can be directly connected with the anesthesia machine in a plugging manner, are simple to replace and install and convenient to operate, and are suitable for being applied to related equipment of operating rooms and ICU wards.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a cross-sectional view of the present utility model;

FIG. 3 is a cross-sectional view A-A of the present utility model;

FIG. 4 is a schematic view of the utility model in an open state;

FIG. 5 is a schematic view of two baffles according to the present utility model;

FIG. 6 is a schematic view of the installation of a baffle according to another embodiment of the present utility model.

The list of the reference numerals in the drawings is: 1. the shell comprises a shell body, 2, an air inlet pipe, 3, an air outlet pipe, 4, a guide vane, 5, a clamping block, 6, a clamping groove, 7, filter cotton, 8, an adsorption medium, 9, a cover body, 10 and an inserting block.

Description of the embodiments

The utility model is further described below with reference to the accompanying drawings.

As shown in fig. 1 and 2, the utility model comprises a shell 1, an air inlet pipe 2 and an air outlet pipe 3, wherein the shell 1 is of a cylindrical structure, and a cavity is formed in the shell; the upper end and the lower end of the shell are respectively provided with an air outlet pipe 3 and an air inlet pipe 2, and the air inlet pipe 2 and the air outlet pipe 3 are communicated with the cavity of the shell. The shell is filled with an adsorption medium 8, the adsorption medium 8 is medical calcium lime or carbon lime, and a medical calcium lime/carbon lime product contains a carbon dioxide saturation indicator. The carbon lime is a byproduct (the main component is Ca (OH)) for producing thiourea ₂ And C) recycling industrial waste. The calcium lime and the carbon lime can effectively absorb carbon dioxide exhaled by a patient, and no toxic byproducts are produced after absorption, so that the use is safe and reliable; and has the characteristics of high absorptivity and low dust.

The inner side of the air outlet pipe 3 is provided with filter cotton 7, and the inner sides of the air inlet pipe 2 and the air outlet pipe 3 are respectively provided with filter cotton, so that the upper filter cotton and the lower filter cotton in the shell better play a role in filtering impurities in gas. The air outlet pipe 3 and the air inlet pipe 2 are of inner and outer double-layer sleeve structures and are matched with a pipeline of an anesthesia machine; caps are arranged on the inner pipes of the air outlet pipe and the air inlet pipe and used for sealing the air outlet pipe and the air inlet pipe, so that the sterile state of the inside of the shell is ensured.

As shown in fig. 3 and 5, the guide vane 4 is arranged above the air inlet pipe 2, the shape of the guide vane is matched with the shape of the inner diameter of the air inlet pipe, and the outer diameter of the guide vane is larger than the inner diameter of the air inlet pipe and smaller than two thirds of the inner cavity of the shell. The guide vane is of a sheet structure with an arc surface, and the arc surface faces the air inlet pipe; the periphery of the arc surface is provided with a plurality of clamping blocks 5, the bottom of the shell is provided with clamping grooves 6 corresponding to the clamping blocks, the height of each clamping groove 6 is 5-10mm, the top of each clamping groove is provided with a groove matched with each clamping block, and each clamping groove 6 and each clamping block 5 are mutually matched to clamp the guide vane 4 at the bottom of the shell, so that the guide vane is suspended above the air inlet pipe and 3-6mm away from the edge of the bottom of the inner cavity of the shell; the distance of the gap can ensure that gas smoothly enters and avoid short circuit of the gas path caused by overlarge flux. The gas enters the shell through the gas inlet pipe along the gap between the guide vane and the shell, and the guide vane uniformly disperses the gas in the shell, so that the gas fully reacts with the adsorption medium in the shell and then is converged to the gas outlet pipe for discharge; the gas entering from the gas inlet pipe is prevented from being directly discharged from the gas outlet pipe only contacting the adsorption medium of the middle passage and failing to be fully reacted and absorbed.

As shown in fig. 5 and 6, in another embodiment of the present utility model, a plurality of insert blocks 10 are disposed around the periphery of the air deflector 4, the height of each insert block is 5-10mm, corresponding slots are disposed at the bottom of the housing, and the insert blocks 10 and the slots are mutually matched, so that the air deflector is socket-connected to the bottom of the housing, and is suspended above the air inlet pipe and 3-6mm away from the bottom edge of the inner cavity of the housing.

As shown in fig. 4, the housing 1, the air inlet pipe 2 and the air outlet pipe 3 may be an integral fixed closed structure, which is beneficial to ensuring the sterility of the interior. The structure of the split type can also be realized, a detachable cover body 9 is arranged at the end part of the shell 1, the cover body and the shell can be in clamping connection or threaded connection, and the air inlet pipe 2 or the air outlet pipe 3 is arranged on the cover body 9.

The working process of the utility model is further described below:

when in use, the cover caps on the air outlet pipe 3 and the air inlet pipe 2 are opened, the air inlet pipe 2 is connected with the breathing mask of a patient, and the air outlet pipe 3 is connected with an anesthesia machine. The method comprises the steps of opening a respiratory anesthesia machine, carrying out gas anesthesia on a patient by gas containing anesthetic, enabling the gas exhaled by the patient to enter an absorption and filtration device through an air inlet pipe, absorbing and filtering carbon dioxide and harmful substances in the gas, enabling the absorbed gas to enter the anesthesia machine through an air outlet pipe, and establishing a circulation path by the anesthesia pipeline and respiration of the patient. After the filter and absorber device is used, the filter and absorber device can be directly detached and discarded, so that cross infection is effectively prevented.

Claims

1. The absorption and filtration device of the anesthesia machine is characterized by comprising a shell (1), an air inlet pipe (2) and an air outlet pipe (3), wherein the shell (1) is of a cylindrical structure with a cavity inside, the air outlet pipe (3) and the air inlet pipe (2) are respectively arranged at the upper end and the lower end of the shell, and the air inlet pipe (2) and the air outlet pipe (3) are communicated with the cavity of the shell; the shell is filled with an adsorption medium (8), and the inner side of the air outlet pipe or/and the air inlet pipe is provided with filter cotton (7).

2. The absorption and filtration device of an anesthesia machine according to claim 1, characterized in that the adsorption medium (8) is lime or lime carbide.

3. The absorbing and filtering device of the anesthesia machine according to claim 2, characterized in that the guide vane (4) is suspended above the air inlet pipe (2), the guide vane is matched with the inner diameter of the air inlet pipe in shape and is larger than the inner diameter of the air inlet pipe.

4. An absorption and filtration device of an anaesthetic machine according to claim 3, characterized in that the deflector (4) is a sheet-like structure with an arc surface facing the inlet pipe.

5. The absorbing and filtering device of the anesthesia machine according to claim 4, characterized in that the periphery of the guide vane (4) is provided with a plurality of clamping blocks (5), the bottom of the shell is provided with clamping grooves (6) corresponding to the clamping blocks, and the gap between the guide vane and the edge of the inner cavity of the shell is 3-6mm when the guide vane is clamped at the bottom of the shell.

6. The absorbing and filtering device of an anesthesia machine according to claim 4, characterized in that the periphery of the deflector (4) is provided with a plurality of insert blocks (10), the height of the insert blocks is 5-10mm; the bottom of the shell is provided with a slot corresponding to the plug block; when the guide vane is inserted into the bottom of the shell, the gap between the guide vane and the edge of the inner cavity of the shell is 3-6mm.

7. The absorption and filtration device of an anesthesia machine according to claim 5 or 6, characterized in that the air outlet pipe (3) and the air inlet pipe (2) are of a double-layer sleeve structure, and the inner pipes of the air outlet pipe and the air inlet pipe are matched with the anesthesia machine pipeline; caps are arranged on the inner pipes of the air outlet pipe and the air inlet pipe.

8. The absorption and filtration device of an anesthesia machine according to claim 7, characterized in that the housing (1) is of unitary construction with the air inlet tube (2) and the air outlet tube (3).