CN201791206U - Oxygen flow control device for anaesthesia machine - Google Patents
Oxygen flow control device for anaesthesia machine Download PDFInfo
- Publication number
- CN201791206U CN201791206U CN2010202962408U CN201020296240U CN201791206U CN 201791206 U CN201791206 U CN 201791206U CN 2010202962408 U CN2010202962408 U CN 2010202962408U CN 201020296240 U CN201020296240 U CN 201020296240U CN 201791206 U CN201791206 U CN 201791206U
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- oxygen
- pipeline
- oxygen flow
- valve
- anesthetic machine
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Abstract
The utility model relates to an oxygen flow control device for an anaesthesia machine. The anaesthesia machine is internally provided with an air bag; one end of the air bag is connected with a pure oxygen pipeline which is provided with an oxygen flow knob switch; a check valve is arranged between the pure oxygen pipeline and the air bag; the connecting position of the pure oxygen pipeline and the air bag is provided with an air pipeline in parallel; the pure oxygen pipeline is further provided with an oxygen concentration sensor which is connected with a controller of the anaesthesia machine; and the control end of the valve is connected with the controller of the anaesthesia machine. In the utility model, the knob switch with the lowest limit flow of 0.3L/min is adopted in the oxygen pipeline, so as to guarantee that the lowest oxygen flow in physiological need is supplied to a patient; the air pipeline is connected with the oxygen pipeline in parallel, when the concentration of oxygen in the gas supplied by the oxygen pipeline is less than 20 percent, the valve on the air pipeline is opened, therefore, the danger that the patient under general anesthesia is oxygen-poor and the ventilation is poor due to closing of an oxygen flow meter and accidental cutting off of an oxygen source, and the safety of the existing anaesthesia machine is improved.
Description
Technical field:
This utility model relates to the mankind life article, relates in particular to medical instruments field, particularly anesthetic machine, and concrete is a kind of oxygen flow control device that is used for anesthetic machine.
Background technology:
Anesthetic machine is widely used in general anesthesia.In the prior art, be provided with 2～3 effusion meters in the anesthetic machine, oxygen flowmeter is not wherein opened in the clinical anesthesia process or is closed by mistake, when perhaps the oxygen source accident is cut off, all can cause the oxygen supply amount to cross low or do not have oxygen supply, cause phenomenons such as patient's hypoventilation, hypoxemia, bring threat for patient's life security.
Summary of the invention:
The purpose of this utility model is to provide a kind of oxygen flow control device that is used for anesthetic machine, and the described this oxygen flow control device that is used for anesthetic machine will solve the prior art anesthetic machine and cross the technical problem that does not have remedial measure when hanging down at oxygen flow.
This oxygen flow control device that is used for anesthetic machine of the present utility model; comprise anesthetic machine; air bag; oxygen concentration sensor; check valve and protection valve; wherein; be provided with controller in the described anesthetic machine; the air inlet of described air bag is connected with the outlet of described check valve; the inlet of check valve connects a three-way pipeline; one end of described three-way pipeline connects a pure oxygen pipeline; the other end of three-way pipeline connects an air line; described oxygen concentration sensor is arranged in the pure oxygen pipeline; described protection valve is arranged in the air line; described controller is connected with oxygen concentration sensor by holding wire, and controller is connected with the protection valve by control line.
Further, described check valve is made of a unidirectional flap valve device.
Further, described protection valve is made of an electromagnetic valve.
Further, be connected with the oxygen flow adjusting knob on the described controller, described oxygen flow adjusting knob is made of an inner button and an outer shroud knob, and described outer shroud knob sleeve is located on the excircle of inner button.
Operation principle of the present utility model is: the gas outlet of air bag is connected with the patient respiration road, and the outer shroud knob is closed and inner button when opening into maximum, the oxygen flow of control anesthetic machine output 0.8L/min; When the outer shroud knob was closed, inner button can make oxygen flow regulate between 0.3～0.8L/min; When outer shroud knob and inner button were all closed, anesthetic machine still had the oxygen flow of 0.3L/min, to guarantee patient safety.Oxygen concentration sensor records fraction of inspired oxygen and equals greatly at 20% o'clock, and the protection valve on the controller control air line is in closed condition, uses source of oxygen that the patient is carried out oxygen supply; When oxygen concentration sensor records fraction of inspired oxygen less than 20% the time, controller is opened the protection valve on the air line.When lifting motion on the air bag, unidirectional flap valve is open, the air admission reservoir bag, and when reservoir bag pressed down, unidirectional flap valve was closed, and the gas of set amount enters the patient respiratory road, guarantees that patient's oxygen supplies.
This utility model and prior art are compared, and its effect is actively with tangible.This utility model is provided with the rotary switch that the least limit flow is 0.3L/min on the anesthetic machine controller, can ensure to the oxygen flow that the patient supplies with minimum physiological need; The air line that is provided with in parallel with oxygen channel; when oxygen concentration in the oxygen channel is opened protection valve on the air line less than 20% the time; avoid owing to oxygen flowmeter is closed the patient with general anesthesia anoxia that causes with the oxygen source accidental amputation, the danger of hypoventilation, improve the safety of anesthetic machine.
Description of drawings:
Fig. 1 is the structural representation that is used for the oxygen flow control device of anesthetic machine of the present utility model.
Fig. 2 is the structural representation of the oxygen flow rotary switch in this utility model.
The specific embodiment:
Embodiment 1:
As depicted in figs. 1 and 2; the oxygen flow control device that is used for anesthetic machine of the present utility model; comprise the anesthetic machine (not shown); air bag 1; oxygen concentration sensor 7; check valve 4 and protection valve 6; wherein; be provided with the controller (not shown) in the described anesthetic machine; the air inlet of described air bag 1 is connected with the outlet of described check valve 4; the inlet of check valve 4 connects a three-way pipeline; one end of described three-way pipeline connects a pure oxygen pipeline 2; the other end of three-way pipeline connects an air line 5; described oxygen concentration sensor 7 is arranged in the pure oxygen pipeline 2; described protection valve 6 is arranged in the air line 5; described controller is connected with oxygen concentration sensor 7 by holding wire, and controller is connected with protection valve 6 by control line.
Further, described check valve 4 is made of a unidirectional flap valve device.
Further, described protection valve 6 is made of an electromagnetic valve.
Further, be connected with the oxygen flow adjusting knob on the described controller, described oxygen flow adjusting knob is made of an inner button 31 and an outer shroud knob 32, and described outer shroud knob 32 is set on the excircle of inner button 31.
The work process of present embodiment is: outer shroud knob 32 is closed and inner button 31 when opening into maximum, the oxygen flow of control anesthetic machine output 0.8L/min; When outer shroud knob 32 was closed, inner button 31 can make oxygen flow regulate between 0.3～0.8L/min; When outer shroud knob 32 and inner button 31 were all closed, anesthetic machine still had the oxygen flow of 0.3L/min, to guarantee patient safety.Oxygen concentration sensor 7 records fraction of inspired oxygen and equals greatly at 20% o'clock, and the protection valve 6 on the controller control air line 5 is in closed condition, uses source of oxygen that the patient is carried out oxygen supply; When oxygen concentration sensor 7 records fraction of inspired oxygen less than 20% the time, controller is opened the protection valve 6 on the air line 5.When lifting motion on the air bag 1, unidirectional flap valve is open, air admission reservoir bag 1, and when reservoir bag 1 pressed down, unidirectional flap valve was closed, and the gas of set amount enters the patient respiratory road, guarantees that patient's oxygen supplies.
Claims (4)
1. oxygen flow control device that is used for anesthetic machine; comprise anesthetic machine; air bag; oxygen concentration sensor; check valve and protection valve; it is characterized in that: be provided with controller in the described anesthetic machine; the air inlet of described air bag is connected with the outlet of described check valve; the inlet of check valve connects a three-way pipeline; one end of described three-way pipeline connects a pure oxygen pipeline; the other end of three-way pipeline connects an air line; described oxygen concentration sensor is arranged in the pure oxygen pipeline; described protection valve is arranged in the air line; described controller is connected with oxygen concentration sensor by holding wire, and controller is connected with the protection valve by control line.
2. the oxygen flow control device that is used for anesthetic machine as claimed in claim 1 is characterized in that: described check valve is made of a unidirectional flap valve device.
3. the oxygen flow control device that is used for anesthetic machine as claimed in claim 1 is characterized in that: described protection valve is made of an electromagnetic valve.
4. the oxygen flow control device that is used for anesthetic machine as claimed in claim 1, it is characterized in that: be connected with the oxygen flow adjusting knob on the described controller, described oxygen flow adjusting knob is made of an inner button and an outer shroud knob, and described outer shroud knob sleeve is located on the excircle of inner button.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202962408U CN201791206U (en) | 2010-08-18 | 2010-08-18 | Oxygen flow control device for anaesthesia machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202962408U CN201791206U (en) | 2010-08-18 | 2010-08-18 | Oxygen flow control device for anaesthesia machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201791206U true CN201791206U (en) | 2011-04-13 |
Family
ID=43846126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202962408U Expired - Fee Related CN201791206U (en) | 2010-08-18 | 2010-08-18 | Oxygen flow control device for anaesthesia machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201791206U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102371018A (en) * | 2010-08-18 | 2012-03-14 | 上海市同济医院 | Oxygen flow rate control device for anaesthesia machine |
-
2010
- 2010-08-18 CN CN2010202962408U patent/CN201791206U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102371018A (en) * | 2010-08-18 | 2012-03-14 | 上海市同济医院 | Oxygen flow rate control device for anaesthesia machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110413 Termination date: 20110818 |