CN218129501U

CN218129501U - Anesthesia waste gas pressure balancing unit

Info

Publication number: CN218129501U
Application number: CN202221565274.1U
Authority: CN
Inventors: 朱照坤; 陈婷婷
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-06-21
Filing date: 2022-06-21
Publication date: 2022-12-27
Anticipated expiration: 2032-06-21

Abstract

The utility model belongs to the technical field of atmospheric pressure balancing unit, concretely relates to anesthesia waste gas atmospheric pressure balancing unit: comprises an exhaust pipeline, an air bag and a one-way valve; the air inlet end of the exhaust pipeline is communicated with an anesthesia waste gas source, and the air outlet end of the exhaust pipeline is communicated with a negative pressure source; the air bag is communicated with the exhaust pipeline and can store or release anesthetic waste gas; the check valve is communicated with the exhaust pipeline and can introduce air into the exhaust pipeline. The pressure of the air can be balanced by charging and discharging waste gas into the air bag or introducing air into the one-way valve, so that the pressure at the waste gas port of the anesthesia machine is more balanced, and the normal use of the anesthesia machine is ensured; meanwhile, the anesthetic waste gas is prevented from being directly discharged into an operating room to cause anesthetic waste gas pollution in the operating room; the scheme has the advantages of simple structure, low manufacturing cost and convenience in installation.

Description

Anesthesia waste gas pressure balancing unit

Technical Field

The utility model belongs to the technical field of atmospheric pressure balancing unit, concretely relates to anesthesia waste gas atmospheric pressure balancing unit.

Background

Inhalation anesthesia is a common general anesthesia method, volatile anesthetic drugs can be used in the inhalation anesthesia, when anesthetic gas is discharged from a patient body, the anesthetic gas can be discharged out of the anesthesia machine from a waste gas outlet through a pipeline in the anesthesia machine, a standard laminar flow operation room is usually provided with a fresh air system and a filter, anesthetic waste gas can be absorbed, and the manufacturing cost is high and the use cost is high.

At present, a large number of nonstandard laminar flow operation rooms exist in China, the situations that no laminar flow system, no fresh air system or no anesthesia waste gas pressure balancing device exists in the operation rooms possibly, if anesthesia waste gas generated by an anesthesia machine directly enters the operation room, gas pollution in the operation room can be caused, and the medical staff are injured by inhaling the anesthesia waste gas for a long time.

The existing simple means is to connect one end of a soft pipeline with a waste gas outlet of an anesthesia machine, then to pump the anesthesia waste gas out of an operation room for treatment through negative pressure devices such as a negative pressure fan, etc., but the negative pressure device easily influences the anesthesia machine due to the fluctuation of air pressure in the air pumping process, if the negative pressure effect influences the air in the lung of a human body, the normal operation of the operation can be influenced, and the life safety of a patient is seriously threatened. Therefore, it is necessary to design a device capable of balancing the air pressure when the negative pressure device extracts the waste gas of the anesthesia machine.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the air pressure at the waste gas outlet is balanced in the process of extracting the waste gas of the anesthesia machine by the negative pressure device, the scheme provides an anesthesia waste gas air pressure balancing device.

The utility model discloses the technical scheme who adopts does:

an anesthesia waste gas pressure balancing device: comprises an exhaust pipeline, an air bag and a one-way valve; the air inlet end of the exhaust pipeline is communicated with an anesthesia waste gas source, and the air outlet end of the exhaust pipeline is communicated with a negative pressure source; the air bag is communicated with the exhaust pipeline and can store or release anesthetic waste gas; the check valve is communicated with the exhaust pipeline and can introduce air into the exhaust pipeline. When the anesthesia machine discharges anesthesia waste gas, anesthesia waste gas gets into the exhaust pipe to can with the air mixture of gathering the pipeline department, get into central negative pressure pipeline from the branch road of breathing in, thereby carry out pressure compensation, avoid taking away the inside gas of anesthesia machine, and endanger patient's safety. The anesthetic waste gas can be temporarily stored in an air bag made of rubber to be expanded, so that an anesthesiologist is prompted to start the central negative pressure in time.

As an alternative structure or supplementary design of the anesthesia waste gas pressure balancing device: an air suction branch is arranged between the air outlet end of the exhaust pipeline and the negative pressure source; the pipe diameter of the air suction branch is smaller than that of the exhaust pipeline.

As an alternative structure or supplementary design of the anesthesia waste gas pressure balancing device: the air exhaust pipeline is connected with a collecting pipeline in parallel, and the air bag and the one-way valve are respectively communicated with the collecting pipeline.

As an alternative structure or supplementary design of the anesthesia waste gas pressure balancing device: an air bag branch is arranged between the collecting pipeline and the air bag.

As an alternative structure or supplementary design of the anesthesia waste gas pressure balancing device: an air branch is arranged between the collecting pipeline and the one-way valve.

As an alternative structure or supplementary design of the anesthesia waste gas pressure balancing device: the air bag is an elastic air bag.

As an alternative structure or supplementary design of the anesthesia waste gas pressure balancing device: the air bag is in an ellipsoid shape or a spherical shape and is made of non-transparent materials.

As an alternative structure or supplementary design of the anesthesia waste gas pressure balancing device: the one-way valve comprises a valve cylinder, a floating valve ball and a screen; the upper part of the valve cylinder is communicated with an exhaust pipeline, and the lower part of the valve cylinder is in a closed-up shape and can be communicated with an external air environment; the floating valve ball is arranged in the valve cylinder, the diameter of the floating valve ball is smaller than the inner diameter of the valve cylinder, and the floating valve ball can move up and down under the double acting force of air flow and self gravity; the air-permeable screen is fixed in the valve cylinder and positioned above the floating valve ball. The function of ventilative screen cloth is that block foreign matter gets into central negative pressure pipeline, and ventilative screen cloth can also block the trompil of floating valve ball upper end and air branch road junction because the negative pressure is too big.

As an alternative structure or supplementary design of the anesthesia waste gas pressure balancing device: the pipe wall of the valve barrel is transparent, and the outer wall of the valve barrel is provided with scale marks. When the central negative pressure of the central negative pressure pipeline is opened, air enters from the opening of the lower section of the valve cylinder to blow up the floating valve ball, and the corresponding negative pressure can be adjusted through the negative pressure relief valve of the central negative pressure pipeline to enable the central point of the floating valve ball to be positioned between the maximum scale and the minimum scale of the valve cylinder; and in the intermittence of the anesthesia waste gas discharged by the anesthesia machine, the central negative pressure sucks the air in the external environment from the hole at the bottom of the valve cylinder, so that the pressure compensation is carried out, and the phenomenon that the gas in the anesthesia machine is pumped away to endanger the safety of a patient is avoided.

The utility model has the advantages that:

1. when the anesthesia waste gas pressure balancing device is used, the anesthesia waste gas pressure balancing device is connected between a negative pressure source and an anesthesia machine waste gas port, when the air pressure of the negative pressure source fluctuates, the air pressure can be balanced in modes of charging and discharging waste gas into an air bag or introducing air into a one-way valve, and therefore the pressure at the anesthesia machine waste gas port is more balanced, normal use of the anesthesia machine is guaranteed, and meanwhile anesthesia waste gas is prevented from being directly discharged into an operating room to cause anesthesia waste gas pollution in the operating room;

2. the scheme has the advantages of simple structure, low manufacturing cost and convenience in installation, and the capital construction transformation of the operating room is not needed. Can be developed and butted with pipe joints of different brands and models to be connected with different anesthesia machine waste gas ports; the device can be fixed at a certain position of the anesthesia machine to enable the anesthesia machine to be vertical to the ground, and then the device is used for connecting an anesthesia waste gas outlet and a central negative pressure pipeline with a negative pressure reducing valve;

3. the scheme has low use cost, no material consumption, convenient disassembly and cleaning, long-term use and no secondary pollution.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.

Fig. 1 is a schematic structural diagram of an anesthetic waste gas pressure balancing device in the scheme.

In the figure: 1-air bag; 2-air bag branch; 3-an air suction branch; 4-an exhaust line; 5-a collecting pipeline; 6-ventilating screen mesh; 7-a valve cartridge; 8-a floating valve ball; 9-air branch.

Detailed Description

The technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings, and the described embodiments are only a part of the embodiments, but not all of the embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments in the present disclosure belong to the protection scope of the present disclosure.

Example 1

Inhalation anesthesia is a common general anesthesia method, volatile anesthetic drugs can be used in the inhalation anesthesia, when anesthetic gas is discharged from a patient body, the anesthetic gas can be discharged out of the anesthesia machine from a waste gas outlet through a pipeline in the anesthesia machine, a standard laminar flow operation room is usually provided with a fresh air system and a filter, anesthetic waste gas can be absorbed, and the manufacturing cost is high and the use cost is high. In the prior art, one end of a soft pipeline is often used for connecting a waste gas outlet of an anesthesia machine, and then the anesthesia waste gas is pumped out of an operation room for treatment through negative pressure devices such as a negative pressure fan, but the anesthesia machine is easily influenced by the fluctuation of air pressure in the air pumping process of the negative pressure device, if the air in the lung of a human body is influenced by the negative pressure effect, the normal operation of the operation can be influenced, and the life safety of a patient is seriously threatened.

In order to solve the above problems, the present embodiment designs an anesthetic waste gas pressure balancing device, as shown in fig. 1, which includes a special-shaped pipeline, an air bag 1, a one-way valve, and other structures.

The special-shaped pipeline comprises an exhaust pipeline 4, a collecting pipeline 5, an air branch 9, an air suction branch 3 and an air bag branch 2; the inlet end of the exhaust pipeline 4 is used for connecting an anesthesia waste gas source which can be an anesthesia machine, and the inlet end of the exhaust pipeline 4 is connected to an anesthesia machine waste gas port in use. The inlet end of the air suction branch 3 is communicated with the output end of the exhaust pipeline 4, the output end of the air suction branch 3 is communicated with a negative pressure source, the negative pressure source can be a negative pressure pump or a central negative pressure pipeline of a hospital, and the pipe diameter of the air suction branch 3 is smaller than that of the exhaust pipeline 4. The collecting line 5 is connected in parallel to the exhaust line 4 and communicates therewith.

The air bag 1 can adopt an elastic air bag 1, the shape of the air bag 1 can be an ellipsoid or spherical structure, the air bag 1 can store a part of anesthetic waste gas discharged from an anesthesia machine, the air bag 1 is made of non-transparent materials, and the collecting pipeline 5 is communicated with the air bag 1 through an air bag branch 2; when the air bag 1 is filled with the anesthetic waste gas and swells, the medical care personnel can judge whether the negative pressure source is started or not according to the method, or judge whether the opening degree of the negative pressure source meets the requirement or not.

The one-way valve can adopt a commercially available pneumatic one-way valve structure, the collection pipeline 5 is communicated with the one-way valve through an air branch 9, and the one-way valve is used for sucking air from the atmospheric environment into the exhaust pipeline 4, so that air pressure balance is performed on an exhaust gas port of the anesthesia apparatus when the opening degree of a negative pressure source is too large or the negative pressure is too large.

The air inlet end of the exhaust pipeline 4 is communicated with an anesthesia waste gas source, and the air outlet end of the exhaust pipeline 4 is communicated with a negative pressure source; the air bag 1 is communicated with the exhaust pipeline 4 and can store or release anesthetic waste gas; which is in communication with the exhaust line 4 and is able to introduce air into the exhaust line 4.

Example 2

On the basis of the structure of embodiment 1, the structure of the check valve can be adopted in the embodiment.

The one-way valve in the embodiment comprises a valve cylinder 7, a floating valve ball 8 and a screen; the valve cylinder 7 is vertically arranged in a tube shape, the upper part of the valve cylinder 7 is communicated with the exhaust pipeline 4, and the lower part of the valve cylinder 7 is in a closed-up shape and can be communicated with the external air environment; the floating valve ball 8 is arranged in the valve cylinder 7, the diameter of the floating valve ball is smaller than the inner diameter of the valve cylinder 7, and the floating valve ball 8 can move up and down under the double acting force of air flow and self gravity; the air permeable screen 6 is fixed in the valve cylinder 7 and is positioned above the floating valve ball 8.

The pipe wall of the valve cylinder 7 is transparent, and the outer wall of the valve cylinder 7 is provided with scale marks.

The structure of this embodiment is in use: the air suction branch 3 is connected with a central negative pressure pipeline, and the exhaust pipeline 4 is connected with a waste gas discharge port of the anesthesia machine. When the central negative pressure of the central negative pressure pipeline is opened, air enters from the opening of the lower section of the valve cylinder 7 to blow up the floating valve ball 8, and the corresponding negative pressure can be adjusted through the negative pressure relief valve of the central negative pressure pipeline to enable the central point of the floating valve ball 8 to be located between the maximum scale and the minimum scale of the scales of the valve cylinder 7. When the anesthesia machine discharges the anesthesia waste gas, the anesthesia waste gas enters the special-shaped pipeline, can be mixed with the air at the collecting pipeline 5 and enters the central negative pressure pipeline from the air suction branch 3; because the waste gas outlet of the anesthesia machine usually adopts a one-way valve structure (namely, the waste gas of the anesthesia machine only flows out but does not flow in), the air of the external environment is sucked from the hole at the bottom of the valve cylinder 7 by the central negative pressure at the intermittence of the waste gas of the anesthesia machine, thereby performing pressure compensation and avoiding the situation that the safety of a patient is endangered by the air in the anesthesia machine which is sucked away.

In addition, when the central negative pressure is not opened, the floating valve ball 8 falls to the closing position at the bottom of the valve cylinder 7, so that the position is blocked, and the anesthesia waste gas is prevented from entering an operating room; the waste anesthetic gas can be temporarily stored in the air bag 1 made of rubber to expand the air bag, so that an anesthesiologist is prompted to timely start the central negative pressure. The function of the air-permeable screen 6 is to prevent foreign matters from entering the central negative pressure pipeline, and the air-permeable screen 6 can also prevent the floating valve ball 8 from blocking the opening at the joint of the upper end of the valve cylinder 7 and the air branch 9 due to overlarge negative pressure.

The above examples are merely for clearly illustrating the examples and are not intended to limit the embodiments; and are neither required nor exhaustive of all embodiments. And obvious variations or modifications of this technology may be resorted to while remaining within the scope of the technology.

Claims

1. The utility model provides an anesthesia waste gas atmospheric pressure balancing unit which characterized in that: comprises an exhaust pipeline (4), an air bag (1) and a one-way valve; the air inlet end of the exhaust pipeline (4) is communicated with an anesthetic waste gas source, and the air outlet end of the exhaust pipeline (4) is communicated with a negative pressure source; the air bag (1) is communicated with the exhaust pipeline (4) and can store or release anesthetic waste gas; the one-way valve is communicated with the exhaust pipeline (4) and can introduce air into the exhaust pipeline (4).

2. The anesthetic exhaust gas pressure balancing apparatus according to claim 1, wherein: an air suction branch (3) is arranged between the air outlet end of the exhaust pipeline (4) and the negative pressure source; the pipe diameter of the air suction branch (3) is smaller than that of the exhaust pipeline (4).

3. The anesthetic gas pressure equalizing device according to claim 1, wherein: the exhaust pipeline (4) is connected with a collecting pipeline (5) in parallel, and the air bag (1) and the one-way valve are respectively communicated with the collecting pipeline (5).

4. The anesthetic exhaust gas pressure balancing apparatus according to claim 3, characterized in that: an air bag branch (2) is arranged between the collecting pipeline (5) and the air bag (1).

5. The anesthetic gas pressure equalizing device according to claim 3, wherein: an air branch (9) is arranged between the collection pipeline (5) and the one-way valve.

6. The anesthetic exhaust gas pressure equalizing device according to any one of claims 1 to 5, wherein: the air bag (1) is an elastic air bag (1).

7. The anesthetic gas pressure equalizing device according to claim 6, wherein: the air bag (1) is in an ellipsoid shape or a spherical shape, and the air bag (1) is made of non-transparent materials.

8. The anesthetic gas pressure equalizing device according to claim 1, wherein: the one-way valve comprises a valve cylinder (7), a floating valve ball (8) and a screen; the valve cylinder (7) is vertically arranged in a tube shape, the upper part of the valve cylinder (7) is communicated with the exhaust pipeline (4), and the lower part of the valve cylinder (7) is in a closed-up shape and can be communicated with the external air environment; the floating valve ball (8) is arranged in the valve cylinder (7), the diameter of the floating valve ball is smaller than the inner diameter of the valve cylinder (7), and the floating valve ball (8) can move up and down under the double acting force of air flow and self gravity; the air-permeable screen (6) is fixed in the valve cylinder (7) and is positioned above the floating valve ball (8).

9. The anesthetic exhaust gas pressure balancing apparatus according to claim 8, wherein: the pipe wall of the valve cylinder (7) is transparent, and scale marks are arranged on the outer wall of the valve cylinder (7).