CN202289141U - Oxygen low-pressure pneumatic alarm device of naesthesia machine - Google Patents
Oxygen low-pressure pneumatic alarm device of naesthesia machine Download PDFInfo
- Publication number
- CN202289141U CN202289141U CN201120365953XU CN201120365953U CN202289141U CN 202289141 U CN202289141 U CN 202289141U CN 201120365953X U CN201120365953X U CN 201120365953XU CN 201120365953 U CN201120365953 U CN 201120365953U CN 202289141 U CN202289141 U CN 202289141U
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- pneumatic
- oxygen
- alarm device
- pressure
- alarm
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Abstract
The utility model provides the oxygen low-pressure pneumatic alarm device of a naesthesia machine, which comprises an oxygen source. The pneumatic tube of the oxygen source is connected with a gas storage tank through a check valve. The oxygen low-pressure pneumatic alarm device of a naesthesia machine is characterized in that the pneumatic tube of the oxygen source is also connected with a two-position two-way pneumatic valve. The two-position two-way pneumatic valve is connected with a pneumatic alarm through the pneumatic tube. The pneumatic alarm comprises a tubular housing. A pin hole nozzle and a turning unit are arranged in the tubular housing. The pinhole nozzle is connected with the two-position two-way pneumatic valve through the pneumatic tube.
Description
Technical field
This utility model belongs to medical instruments field, relates to a kind of pneumatic alarm device, especially the oxygen low-pressure pneumatic alarm device in the anesthetic machine gas circuit.
Background technology
Anesthetic machine is mainly used in the suction-type surgery anesthesia clinically; Its principle is to utilize the mist of oxygen or oxygen to make the anaesthetic volatilization through the anaesthetic vaporizer; Produce oxygen mist with anaesthetic, the mist that will have anaesthetic inputs to patient, makes patient be in narcotism.The used source of the gas of anesthetic machine mainly contains oxygen, air and nitrous oxide gas, and oxygen is the most important gas of keeping patient's life in these three kinds of gases, requires to keep certain pressure, so anesthetic machine requires to have the oxygen low pressure alarm.Normal employing is electronic alarm at present, but structure is complicated, and cost is higher.
Summary of the invention
The purpose of this utility model is to provide a kind of oxygen low-pressure pneumatic alarm device, utilizes the oxygen in the anesthetic machine gas circuit to carry out pneumatic warning, and not only simple in structure, cost is low, and Melodious chimes of doom.
The structure of this utility model is following:
Anesthetic machine oxygen low-pressure pneumatic alarm device; Comprise source of oxygen; The appendix of source of oxygen is connected with air accumulator through check valve, and it is characterized in that: the appendix of said source of oxygen also connects a bi-bit bi-pass pneumatic operated valve, and said bi-bit bi-pass pneumatic operated valve is connected with a pneumatic alarm through appendix again.
Said pneumatic alarm comprises a tubular shell, is provided with pinhole nozzle and variator in the tubular shell, and said pinhole nozzle is connected through appendix with said bi-bit bi-pass pneumatic operated valve.
Said tubular shell is provided with through hole.
This utility model directly utilizes the oxygen in the anesthetic machine gas circuit to carry out pneumatic warning, and when oxygen pressure was lower than setting value, the bi-bit bi-pass pneumatic operated valve was opened; Oxygen gets into alarm through the bi-bit bi-pass pneumatic operated valve; Melodious chimes of doom, and simple in structure, and cost is low.
Description of drawings
Fig. 1 is the structural representation of this utility model
Fig. 2 is the STRUCTURE DECOMPOSITION sketch map of alarm
Fig. 3 is the alarm principle figure of pneumatic alarm
The specific embodiment
As shown in Figure 1, this utility model comprises source of oxygen 1, and the appendix of source of oxygen is connected with air accumulator 3 through check valve 2; And the appendix of source of oxygen also connects a bi-bit bi-pass pneumatic operated valve 4, and said bi-bit bi-pass pneumatic operated valve 4 is connected with a pneumatic alarm 5 through appendix again.
As shown in Figure 2, said pneumatic alarm 5 comprises a tubular shell, and this tubular shell is made up of upper shell 51 and lower house 52, is provided with pinhole nozzle 6 and variator 7 in the tubular shell.Said pinhole nozzle 6 is connected through appendix with bi-bit bi-pass pneumatic operated valve among Fig. 1.
Can be provided with through hole on the said tubular shell.
This utility model can be set the opening pressure of bi-bit bi-pass pneumatic operated valve.When the pressure of source of oxygen was lower than setting value, the bi-bit bi-pass pneumatic operated valve was opened, and the oxygen of source of oxygen gets into alarm device through two position two-way valve.
As shown in Figure 3, after oxygen gets into alarm, through pinhole nozzle 6 ejections; And produce negative pressure air is sucked in the housing (air flow is shown in arrow among Fig. 3) by the through hole on the tubular shell, the intravital cavity of shell is equivalent to gas hybrid chamber 8, sucks air in gas hybrid chamber 8 and oxygen mix; Form low and the air-flow that flow is high of pressure; Thereby variator 7 is blowed, produce chimes of doom, and this chimes of doom is more melodious soft.
Claims (3)
1. anesthetic machine oxygen low-pressure pneumatic alarm device; Comprise source of oxygen; The appendix of source of oxygen is connected with air accumulator through check valve; It is characterized in that: the appendix of said source of oxygen also connects a bi-bit bi-pass pneumatic operated valve, and said bi-bit bi-pass pneumatic operated valve is connected with a pneumatic alarm through appendix again.
2. anesthetic machine oxygen low-pressure pneumatic alarm device according to claim 1; It is characterized in that: said pneumatic alarm comprises a tubular shell; Be provided with pinhole nozzle and variator in the tubular shell, said pinhole nozzle is connected through appendix with said bi-bit bi-pass pneumatic operated valve.
3. anesthetic machine oxygen low-pressure pneumatic alarm device according to claim 2, it is characterized in that: said tubular shell is provided with through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120365953XU CN202289141U (en) | 2011-09-29 | 2011-09-29 | Oxygen low-pressure pneumatic alarm device of naesthesia machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120365953XU CN202289141U (en) | 2011-09-29 | 2011-09-29 | Oxygen low-pressure pneumatic alarm device of naesthesia machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202289141U true CN202289141U (en) | 2012-07-04 |
Family
ID=46358133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120365953XU Expired - Lifetime CN202289141U (en) | 2011-09-29 | 2011-09-29 | Oxygen low-pressure pneumatic alarm device of naesthesia machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202289141U (en) |
-
2011
- 2011-09-29 CN CN201120365953XU patent/CN202289141U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120704 |
|
| CX01 | Expiry of patent term |