CN112827037A

CN112827037A - Anesthetic volatilization device

Info

Publication number: CN112827037A
Application number: CN202011636848.5A
Authority: CN
Inventors: 胡友刚
Original assignee: Beijing Aeonmed Co Ltd
Current assignee: Beijing Aeonmed Co Ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-05-25

Abstract

The invention belongs to the technical field of anesthesia machines, and particularly relates to an anesthetic volatilization device which comprises a liquid anesthetic inlet joint (1), a gas inlet joint (3), a gas outlet joint (4) and a volatilization block (5); the volatilization block (5) is provided with a gas slit (5-1) which penetrates through the volatilization block, a plurality of micropore flow channels (5-2) are arranged inside the volatilization block (5), one end of each micropore flow channel (5-2) is communicated with the gas slit (5-1), and the other end of each micropore flow channel is communicated with the outside of the volatilization block; the gas inlet joint (3) and the gas outlet joint (4) are fixed on two sides of the volatile block, and the gas inlet is communicated with the gas outlet through a gas slit (5-1); the liquid anesthetic inlet joint (1) is fixed on the volatilization block (5), and the anesthetic inlet is communicated with the micropore flow passage (5-2). The device has small volume and does not occupy large space; the requirement on the assembly process is not high, and the consistency is better; the output anesthetic concentration is stable.

Description

Anesthetic volatilization device

Technical Field

The invention belongs to the technical field of anesthesia machines, and particularly relates to an anesthetic volatilization device.

Background

In the overall system of an anesthesia machine, an anesthetic vaporizer is a vital component that functions as a means for converting liquid anesthetic into breathable anesthetic gas that is delivered in a metered amount to the anesthesia circuit. The stability of the anesthetic concentration is an important measure of the performance of anesthetic vaporizers.

The anesthetic volatilization module in the evaporator is a structure which directly influences whether the concentration of the anesthetic volatilization module can be stably output or not.

The main working principle of the volatilization module of the existing evaporator is as follows: 1. a cotton core (wick) is arranged in the tank body and absorbs the liquid anesthetic; 2. the external fresh gas takes out the gas through the cotton core which is spirally wound on a curve tube (bag system) and absorbs the liquid anesthetic, and the anesthetic gas with a certain concentration is formed.

The prior art scheme has the following disadvantages: 1. the cotton core occupies a large space. 2. The concentration of the anesthetic is influenced by the material of the cotton core and the tightness degree of the cotton core, the requirement on the assembly process of the cotton core is high, and the consistency is poor. 3. When large flow of gas passes through, the concentration of the cotton core is reduced along with time due to insufficient drug absorption amount.

Chinese patent application CN105477762A discloses a wick of an anesthetic evaporator and an anesthetic evaporator, wherein the wick comprises a wick holder and a wick pipeline, the wick pipeline is spirally fixed outside the wick holder along the circumference of the wick holder, and the wick pipeline is a square hollow pipeline. However, the patent adopts the core and the absorbent cotton as the anesthetic volatilization component, which can not solve the above disadvantages caused by the cotton core.

Disclosure of Invention

In order to solve the above problems, the present invention provides an anesthetic volatilization device, which is small and does not occupy a large space; the requirement on the assembly process is not high, and the consistency is better; the output anesthetic concentration is stable.

In order to achieve the purpose, the invention adopts the following technical scheme:

an anesthetic volatilization device, which comprises a liquid anesthetic inlet joint, a gas outlet joint and a volatilization block;

the volatilization block is provided with a gas slit which penetrates through the volatilization block, meanwhile, a plurality of micropore flow channels are arranged inside the volatilization block, one end of each micropore flow channel is communicated with the gas slit, and the other end of each micropore flow channel is communicated with the outside of the volatilization block;

the gas inlet joint and the gas outlet joint are fixed on two sides of the volatile block, and the gas inlet is communicated with the gas outlet through a gas slit;

the liquid anesthetic inlet joint is fixed on the volatilization block, and the anesthetic inlet is communicated with the micropore flow passage.

Preferably, the gas slit and the microporous flow channel are perpendicularly intersected. Or they may intersect at an angle, such as 60 degrees.

The number of the microporous flow passages is single or multiple, and preferably, the number of the microporous flow passages is three.

Preferably, the volatilization block comprises a volatilization block body and an insert; the volatilization block main body is provided with a through hole with the size larger than that of the insert, the insert is arranged in the through hole, and a gas slit is formed between the outer wall of the insert and the inner wall of the through hole.

Further preferably, the insert is rectangular, and the through hole is a rectangular hole, as with the insert.

Preferably, sealing gaskets are arranged between the liquid anesthetic inlet joint, the gas inlet joint and the gas outlet joint and the volatilization block. That is, the contact surfaces of the anesthetic inlet joint, the gas inlet joint and the gas outlet joint with the volatilization block are sealed by sealing gaskets.

Further preferably, the sealing washer is an O-ring.

The liquid micro-flow hole prevents the formation of big liquid drops of the anesthetic, the formation of the liquid drops of the anesthetic can cause the concentration mutation when the anesthetic volatilizes, the concentration can not be stably output, the liquid anesthetic flows through the micro-flow hole and finally reaches the gas slit vertical to the micro-flow hole, the width dimension of the gas slit is different from 0.1-1 mm, the gas slit has the function of accelerating fresh gas, and the liquid anesthetic is quickly volatilized through the gas slit after passing through the micro-flow hole.

The liquid anesthetic of the invention flows through the tiny pores, the accelerated fresh gas passing at high speed is volatilized rapidly, and the liquid anesthetic is volatilized rapidly when not aggregated into small droplets, thereby ensuring the stability of output concentration.

Compared with the prior art, the invention has the beneficial effects that:

the liquid anesthetic flows into the gas slit through the micro-flow pore passage and is volatilized by gas passing through the slit at a high speed to form stable anesthetic concentration, the size is small, and the occupied space is small; the requirement on the assembly process is not high, and the assembly is convenient and consistent.

Drawings

FIG. 1 is a schematic view of the anesthetic volatilization device of the present invention;

FIG. 2 is a schematic view of the exploded structure of the anesthetic volatilization device of the present invention;

FIG. 3 is a cross-sectional view of a volatile block of the present invention;

FIG. 4 is a left side view of FIG. 3;

FIG. 5 is an exploded view of the volatile block of the present invention;

FIG. 6 is a schematic perspective view of the anesthetic volatilization device of the present invention;

FIG. 7 is an enlarged view of portion A of FIG. 6;

reference numerals:

1. a liquid anesthetic inlet joint; 2. a anesthetic inlet sealing washer; 3. a gas inlet fitting; 4. a gas outlet connection; 5. volatilizing blocks; 5-1, gas slit; 5-2, a micropore flow channel; 5-3, volatilizing block main body; 5-4, an insert; 5-5, through holes; 6. a gas inlet seal gasket; 7. a gas outlet sealing gasket.

Detailed Description

The invention is described in further detail below with reference to the figures and the detailed description.

Example 1

1-4, an anesthetic volatilization device, said device comprises a liquid anesthetic inlet joint 1, a gas inlet joint 3, a gas outlet joint 4 and a volatilization block 5;

the volatilization block 5 is provided with a gas slit 5-1 which penetrates through the volatilization block, meanwhile, a plurality of micropore flow channels 5-2 are arranged inside the volatilization block 5, one end of each micropore flow channel 5-2 is communicated with the gas slit 5-1, and the other end of each micropore flow channel is communicated with the outside of the volatilization block;

the gas inlet joint 3 and the gas outlet joint 4 are fixed on two sides of the volatile block, and the gas inlet is communicated with the gas outlet through a gas slit 5-1;

the anesthetic inlet joint 1 is fixed on the volatilization block 5, and the anesthetic inlet is communicated with the micropore flow passage 5-2.

The gas slit 5-1 and the micropore flow channel 5-2 are vertically intersected.

The number of the micropore flow passages 5-2 is three.

As shown in fig. 3-7, the volatilization block 5 comprises a volatilization block body 5-3 and an insert 5-4; the volatilization block main body 5-3 is provided with a through hole 5-5 with the size larger than that of the insert 5-4, the insert 5-4 is arranged in the through hole 5-5, and a gas slit 5-1 is formed between the outer wall of the insert and the inner wall of the through hole.

The insert 5-4 is cuboid, and is the same as the insert, and the through hole is a rectangular hole.

Anesthetic entry joint 1, set up seal ring between gas inlet joint 3 and gas outlet joint 4 and the piece 5 that volatilizees, wherein, anesthetic entry joint 1 adopts anesthetic entry seal ring 2 to seal with the contact surface of the piece 5 that volatilizees, gas inlet joint 3 adopts gas inlet seal ring 6 to seal with the contact surface of the piece 5 that volatilizees, gas outlet joint 4 adopts gas outlet seal ring 7 to seal with the contact surface of the piece 5 that volatilizees, three kinds of seal rings are O type seal ring, the width of gas slit is 0.1 ~ 1 mm.

The liquid anesthetic inlet joint is arranged on the volatilization block through a screw and an O-shaped sealing ring and used for sealing liquid anesthetic and guiding flow, the gas inlet joint and the gas outlet joint are connected to the volatilization block through the screw and the O-shaped sealing ring and used for sealing a gas path and guiding flow, and the liquid anesthetic flows through the liquid anesthetic inlet joint, enters the volatilization block, flows through the micropore flow channel and is volatilized by gas flowing through the gas slit. The inside of the volatilization block is provided with an insert and forms a gas slit with the inner wall of the volatilization block.

Conventional technical knowledge in the art can be used for the details which are not described in the present invention.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and are not limited. Although the present invention has been described in detail with reference to the embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. The anesthetic volatilization device is characterized by comprising a liquid anesthetic inlet joint (1), a gas inlet joint (3), a gas outlet joint (4) and a volatilization block (5);

the volatilization block (5) is provided with a gas slit (5-1) which penetrates through the volatilization block, a plurality of micropore flow channels (5-2) are arranged inside the volatilization block (5), one end of each micropore flow channel (5-2) is communicated with the gas slit (5-1), and the other end of each micropore flow channel is communicated with the outside of the volatilization block;

the gas inlet joint (3) and the gas outlet joint (4) are fixed on two sides of the volatile block, and the gas inlet is communicated with the gas outlet through a gas slit (5-1);

the liquid anesthetic inlet joint (1) is fixed on the volatilization block (5), and the anesthetic inlet is communicated with the micropore flow passage (5-2).

2. The anesthetic volatilization device according to claim 1, characterized in that the gas slit (5-1) and the micro-porous flow channel (5-2) are perpendicularly intersected.

3. Anesthetic volatilization device according to claim 1, characterized in that the number of micro-porous flow channels (5-2) is single or multiple.

4. The anesthetic volatilization device according to claim 1, characterized in that the volatilization block (5) comprises a volatilization block body (5-3) and an insert (5-4); the volatilization block main body (5-3) is provided with a through hole (5-5) with the size larger than that of the insert (5-4), the insert (5-4) is arranged in the through hole (5-5), and a gas slit (5-1) is formed between the outer wall of the insert and the inner wall of the through hole.

5. An anesthetic volatilization device according to claim 4, characterized in that the insert (5-4) is cuboid-shaped, like the insert, and the through hole is a rectangular hole.

6. Anesthetic volatilization device according to claim 1, characterized in that sealing gaskets are arranged between the liquid anesthetic inlet connection (1), the gas inlet connection (3) and the gas outlet connection (4) and the volatilization block (5).

7. The anesthesia volatilization device of claim 6, wherein the sealing gasket is an O-ring.

8. The anesthetic volatilization device according to any one of claims 1 to 7, wherein the width of the gas slit is 0.1 to 1 mm.