CN217724299U - Adjustable pressure limiting valve with safety indication - Google Patents
Adjustable pressure limiting valve with safety indication Download PDFInfo
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- CN217724299U CN217724299U CN202121863121.0U CN202121863121U CN217724299U CN 217724299 U CN217724299 U CN 217724299U CN 202121863121 U CN202121863121 U CN 202121863121U CN 217724299 U CN217724299 U CN 217724299U
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Abstract
The utility model discloses a take safety indication's adjustable pressure limiting valve, include: the device comprises a breathing circuit system used for providing ventilation support for a patient, a change-over switch, an APL valve and a prompting device connected with the APL valve, wherein the change-over switch is used for changing over a manual ventilation mode and a mechanical ventilation mode of the breathing circuit system, the APL valve is used for limiting the pressure of the breathing circuit system in the manual ventilation mode, the change-over switch and the APL valve are arranged on the breathing circuit system, and the prompting device is used for performing different prompting operations according to different working states of the APL valve. Through using the utility model provides an adjustable pressure limiting valve of taking safety indication can effectively reduce the too high risk of pressure after anesthesia system is ventilated to the manual ventilation by machinery.
Description
Technical Field
The utility model relates to an anesthesia system technical field, more specifically says, relates to an adjustable pressure limit valve of area safety indication.
Background
In the prior art, an anesthesia system is a system for providing ventilatory support to a patient and monitoring patient parameters during inhalation general anesthesia, and the ventilatory operation of the anesthesia system is divided into two forms, mechanical ventilation and manual ventilation. The maximum airway pressure of a patient is set through the APL valve in manual ventilation, a user presses the manual leather bag to ventilate the patient, and when the pressure in the leather bag is larger than the maximum airway pressure of the patient set through the APL valve, gas overflows from the membrane of the APL valve to the anesthesia waste gas transmission and treatment system, so that the airway pressure of the patient is guaranteed not to exceed the set maximum airway pressure.
In the actual use process, due to the high working intensity or the complex environment, when a user switches from the mechanical ventilation mode to the manual ventilation mode by toggling the manual automatic switch, the user easily fails to confirm whether the maximum airway pressure set by the APL valve is suitable for the current patient step, thereby causing the risk of potential over-high airway pressure.
In summary, how to reduce the risk of over-high pressure after the anesthesia system is switched from mechanical ventilation to manual ventilation is a problem to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing an adjustable pressure limiting valve of taking safety indication can effectively reduce the too high risk of pressure after anesthesia system switches to manual ventilation by mechanical ventilation.
In order to achieve the above object, the present invention provides the following technical solutions:
an adjustable pressure limiting valve with safety indication, comprising: the device comprises a breathing circuit system used for providing ventilation support for a patient, a change-over switch, an APL valve and a prompting device connected with the APL valve, wherein the change-over switch is used for changing over a manual ventilation mode and a mechanical ventilation mode of the breathing circuit system, the APL valve is used for limiting the pressure of the breathing circuit system in the manual ventilation mode, the change-over switch and the APL valve are arranged on the breathing circuit system, and the prompting device is used for performing different prompting operations according to different working states of the APL valve.
Preferably, the breathing circuit system comprises an inhalation pipeline for inputting fresh airflow to a patient, an exhalation pipeline for exhausting redundant airflow of the patient and a manual leather bag for manually adjusting the pressure of the airflow, the output end of the inhalation pipeline and the input end of the exhalation pipeline are both communicated with the patient, the input end of the inhalation pipeline is communicated with the output end of the exhalation pipeline, and the manual leather bag and the APL valve are both communicated with the output end of the exhalation pipeline.
Preferably, the breathing circuit system further comprises means for removing CO from the gas stream 2 The soda lime tank is arranged between the input end of the air suction pipeline and the output end of the air exhaust pipeline.
Preferably, the prompting device comprises a monitoring unit for detecting the set pressure of the APL valve and an indicator light connected with the monitoring unit, and the indicator light can be lighted when the APL valve is operated.
Preferably, the indicator light can display different colors according to different pressure setting conditions of the APL valve.
Preferably, the indicator light is white when the set pressure of the APL valve is the minimum pressure, green when the set pressure of the APL valve is from the minimum pressure to the intermediate pressure, and yellow when the set pressure of the APL valve is greater than the intermediate pressure.
Preferably, the prompting device comprises a monitoring unit for detecting the set pressure of the APL valve and a display connected with the monitoring unit, and the display can depict the working state and the pressure interval of the APL valve through a simulation graph.
Use the utility model provides a take safety indication's adjustable pressure limiting valve time, utilize change over switch to carry out the mode switching of ventilating to breathing circuit system when operating personnel, make breathing circuit system switch to the manual mode of ventilating by mechanical ventilation mode when, the APL valve can be changed operating condition into by non-operating condition, meanwhile, suggestion device can carry out different suggestion operations, thereby timely warning operating personnel is in the manual mode of ventilating at present, whether the biggest air flue pressure that the APL valve was set for is applicable to current patient is confirmed in the operating personnel initiative of being convenient for, avoid appearing air flue pressure too high and harm patient's phenomenon.
To sum up, the utility model provides a take safety indication's adjustable pressure limiting valve can effectively reduce the too high risk of pressure after anesthesia system is ventilated to the manual work by machinery.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic view of a safety indicating adjustable pressure limiting valve according to the present invention in a manual venting mode;
FIG. 2 is a schematic diagram of the structure of an APL valve and an indicator light;
fig. 3 is a cross-sectional view of fig. 2.
In fig. 1-3:
1 is APL valve, 2 is pilot lamp, 3 is inspiratory pipeline, 4 is expiratory pipeline, 5 is manual leather bag, 6 is soda lime jar.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The core of the utility model is to provide an adjustable pressure limiting valve with safety indication, which can effectively reduce the over-high pressure risk of the anesthesia system switched from mechanical ventilation to manual ventilation.
Referring to fig. 1 to 3, fig. 1 is a schematic view of an adjustable pressure limiting valve with safety indication provided by the present invention in a manual ventilation mode; FIG. 2 is a schematic diagram of the structure of an APL valve and an indicator light;
fig. 3 is a cross-sectional view of fig. 2.
This embodiment provides a take safety indicator's adjustable pressure limit valve, includes: the device comprises a breathing circuit system used for providing ventilation support for a patient, a change-over switch, an APL valve 1 and a prompting device connected with the APL valve 1, wherein the change-over switch is used for changing over a manual ventilation mode and a mechanical ventilation mode of the breathing circuit system, the APL valve 1 is used for limiting the pressure of the breathing circuit system in the manual ventilation mode, the change-over switch and the APL valve 1 are arranged on the breathing circuit system, and the prompting device is used for carrying out different prompting operations according to different working states of the APL valve 1.
It should be noted that the APL valve 1 (Adjustable Pressure Limiting) is a valve for Limiting the Pressure in the breathing circuit, and is used for Pressure limitation of the breathing circuit system in the manual ventilation mode. The prompting device can perform different prompting operations according to different working states of the APL valve 1, and the prompting of the prompting device can be distinguished when the APL valve 1 is in a running state and a non-running state, so that an operator can timely find that the ventilation mode of the breathing circuit system is switched, and the pipeline pressure of the breathing circuit system in a manual ventilation mode can be better controlled and adjusted.
In the actual application process, the shapes, structures, types and the like of the breathing circuit system, the change-over switch, the APL valve 1 and the prompting device can be determined according to the actual situation and the actual requirements.
Use the utility model provides a take safety indication's adjustable pressure limiting valve time, utilize change over switch to carry out the mode switching of ventilating to breathing circuit system when operating personnel, make breathing circuit system switch to the manual mode of ventilating by mechanical ventilation mode when, APL valve 1 can change operating condition into by unoperated state, meanwhile, suggestion device can carry out different suggestion operations, thereby timely warning operating personnel is in manual mode of ventilating at present, whether the maximum airway pressure that APL valve 1 set for is applicable to current patient is confirmed in the initiative of operating personnel of being convenient for, avoid appearing airway pressure too high and harm patient's phenomenon.
To sum up, the utility model provides a take safety indication's adjustable pressure limiting valve can effectively reduce the too high risk of pressure after anesthesia system is ventilated to the manual work by machinery.
On the basis of the above embodiment, preferably, the breathing circuit system includes an inhalation pipeline 3 for inputting a fresh airflow to the patient, an exhalation pipeline 4 for exhausting an excess airflow of the patient, and a manual bladder 5 for manually adjusting the pressure of the airflow, an output end of the inhalation pipeline 3 and an input end of the exhalation pipeline 4 are both communicated with the patient, an input end of the inhalation pipeline 3 is communicated with an output end of the exhalation pipeline 4, and both the manual bladder 5 and the APL valve 1 are both communicated with an output end of the exhalation pipeline 4.
Preferably, the breathing circuit system further comprises means for removing CO from the gas stream 2 The soda lime tank 6 is arranged between the input end of the inhalation pipeline 3 and the output end of the exhalation pipeline 4, and partial circuits of the breathing circuit system are shown in figure 1.
It should be noted that when the breathing circuit system is in the manual ventilation mode, the manual bladder 5 and the APL valve 1 are required to be used in cooperation. For example, fresh air may be continuously drawn into the airway circuit of the patient through the inhalation line 3, and when the operator squeezes the manual bladder 5, the air flow in the manual bladder 5 is drawn through the soda lime tank 6 to remove excess CO 2 Then enters the patient through the inhalation pipeline 3, and in the process, if the airway pressure of the patient is higher than the APL valve 1At the maximum pressure set, the gas flow will overflow the APL valve 1 into the exhaust gas treatment system. When the operator releases the manual leather bag 5, the airflow in the lung of the patient enters the manual leather bag 5 through the breathing pipeline 4, and the operation is repeated so as to avoid the phenomenon that the patient is damaged due to overhigh pressure of the air passage.
Preferably, the prompting device comprises a monitoring unit for detecting the set pressure of the APL valve 1 and an indicator light 2 connected with the monitoring unit, and the indicator light 2 can be lighted when the APL valve 1 is operated. Therefore, when the breathing circuit system is in the manual ventilation mode, the APL valve 1 starts to operate, and the indicator light 2 can be lighted immediately, so that the change condition of the operator can be reminded in time, the operator can quickly and actively confirm whether the maximum airway pressure set by the APL valve 1 is suitable for the current patient, and the phenomenon that the patient is damaged due to overhigh airway pressure is avoided.
Preferably, the indicator light 2 can display different colors according to different pressure setting conditions of the APL valve 1, and the type of the indicator light 2 can be determined according to actual conditions and actual requirements in the actual application process.
Preferably, the indicator lamp 2 is white when the set pressure of the APL valve 1 is the minimum pressure, the indicator lamp 2 is green when the set pressure of the APL valve 1 is the minimum pressure to the intermediate pressure, and the indicator lamp 2 is yellow when the set pressure of the APL valve 1 is greater than the intermediate pressure. For example, the minimum pressure may be set to 0 cm water and the intermediate pressure may be set to 30 cm water, that is, when the set pressure of the APL valve 1 is 0 cm water, the indicator light 2 is white, when the set pressure of the APL valve 1 is 0 to 30 cm water, the indicator light 2 is green, and when the set pressure of the APL valve 1 is greater than 30 cm water, the indicator light 2 is yellow.
It should be noted that, the indicator lights 2 of different colors are used for indicating the pressure value interval preset by the APL valve 1, so that the operator can be prompted more quickly and intuitively, and the operator can conveniently evaluate whether the pressure set by the APL valve 1 is suitable for the patient, thereby reducing the potential risk of over-high airway pressure of the patient.
It should be noted that, when using the adjustable pressure limiting valve with safety indication provided by the present invention, if the breathing circuit system is in shutdown or standby state, the components are not processed, that is, the indicator light 2 on the APL valve 1 is in off state. Furthermore, when the breathing circuit system is in the mechanical ventilation state, the indicator lamp 2 on the APL valve 1 is also in the off state.
When the breathing circuit system is in a treatment state or a check state before use, an operator can detect the state of the selector switch, namely when the breathing circuit system is in a mechanical ventilation mode state, the indicator lamp 2 on the APL valve 1 is in an off state, and when the breathing circuit system is in a manual ventilation mode state, the indicator lamp 2 is in an on state. Moreover, the monitoring unit can accurately detect the set pressure of the APL valve 1, and when the APL valve 1 is in a fully open state, namely the set pressure of the APL valve 1 is 0 cm water column, the indicator lamp 2 displays white; when the set pressure of the APL valve 1 is between 0 cm water column and 30 cm water column, the indicator lamp 2 displays green; when the set pressure of the APL valve 1 is between 30 cm water and the maximum limit, the indicator lamp 2 shows a yellow color.
In addition, it should be noted that the indicator light 2 may be installed on the APL valve 1, so that an operator can observe the change of the indicator light 2 synchronously when checking and adjusting the APL valve 1, thereby saving time and improving operation efficiency. The setting of pilot lamp 2 can be quick audio-visual suggestion operating personnel to whether the pressure is fit for the patient in APL valve 1 settlement pressure in the operating personnel aassessment, thereby reduce the potential too high risk of patient's air flue pressure.
Preferably, the prompting device comprises a monitoring unit for detecting the set pressure of the APL valve 1 and a display connected with the monitoring unit, and the display can depict the working state and the pressure interval of the APL valve 1 through a simulation graph. The working state and the corresponding pressure interval of the APL valve 1 can be depicted by using a simulation graph to remind an operator to quickly evaluate whether the set pressure of the APL valve 1 is suitable for a patient or not, so that the potential risk of over-high airway pressure of the patient is reduced.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The utility model provides an arbitrary compound mode of all embodiments all is in this utility model's a protection scope, does not do here and gives unnecessary details.
The adjustable pressure limiting valve with the safety indication provided by the utility model is described in detail above. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the scope of the appended claims.
Claims (7)
1. An adjustable pressure limiting valve with safety indication, comprising: the device comprises a breathing circuit system used for providing ventilation support for a patient, a change-over switch, an APL valve (1) and a prompting device connected with the APL valve (1), wherein the change-over switch is used for changing over a manual ventilation mode and a mechanical ventilation mode of the breathing circuit system, the APL valve (1) is used for limiting the pressure of the breathing circuit system in the manual ventilation mode, the change-over switch and the APL valve (1) are arranged on the breathing circuit system, and the prompting device is used for performing different prompting operations according to different working states of the APL valve (1).
2. The adjustable pressure limiting valve with safety indication according to claim 1, wherein the breathing circuit system comprises an inhalation line (3) for inputting a fresh gas flow to a patient, an exhalation line (4) for exhausting an excess gas flow of the patient, and a manual bladder (5) for manually adjusting a pressure of the gas flow, an output of the inhalation line (3) and an input of the exhalation line (4) are both in communication with the patient, an input of the inhalation line (3) and an output of the exhalation line (4) are both in communication, and the manual bladder (5) and the APL valve (1) are both in communication with an output of the exhalation line (4).
3. The adjustable pressure limit valve with safety indication of claim 2, wherein the breathing circuit system further comprises a means for removing CO from the gas stream 2 The sodium lime tank (6) is arranged between the input end of the air suction pipeline (3) and the output end of the air exhaust pipeline (4).
4. The adjustable pressure limiting valve with safety indication according to any of claims 1 to 3, characterized in that the prompting device comprises a monitoring unit for detecting the set pressure of the APL valve (1) and an indicator light (2) connected to the monitoring unit, the indicator light (2) being illuminable when the APL valve (1) is in operation.
5. The adjustable pressure limiting valve with safety indication according to claim 4, characterized in that the indicator light (2) can display different colors according to different pressure settings of the APL valve (1).
6. The adjustable pressure limiting valve with safety indicator according to claim 5, wherein the indicator light (2) is white when the set pressure of the APL valve (1) is a minimum pressure, the indicator light (2) is green when the set pressure of the APL valve (1) is the minimum pressure to an intermediate pressure, and the indicator light (2) is yellow when the set pressure of the APL valve (1) is greater than the intermediate pressure.
7. The adjustable pressure limiting valve with safety indication according to any of claims 1 to 3, characterized in that the prompting device comprises a monitoring unit for detecting the set pressure of the APL valve (1) and a display connected with the monitoring unit, wherein the display can depict the working state and the pressure interval of the APL valve (1) through simulation graphs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121863121.0U CN217724299U (en) | 2021-08-10 | 2021-08-10 | Adjustable pressure limiting valve with safety indication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121863121.0U CN217724299U (en) | 2021-08-10 | 2021-08-10 | Adjustable pressure limiting valve with safety indication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217724299U true CN217724299U (en) | 2022-11-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121863121.0U Active CN217724299U (en) | 2021-08-10 | 2021-08-10 | Adjustable pressure limiting valve with safety indication |
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| Country | Link |
|---|---|
| CN (1) | CN217724299U (en) |
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2021
- 2021-08-10 CN CN202121863121.0U patent/CN217724299U/en active Active
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