CN115702964A - Adjustable pressure limiting valve with safety indication - Google Patents
Adjustable pressure limiting valve with safety indication Download PDFInfo
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- CN115702964A CN115702964A CN202110913595.XA CN202110913595A CN115702964A CN 115702964 A CN115702964 A CN 115702964A CN 202110913595 A CN202110913595 A CN 202110913595A CN 115702964 A CN115702964 A CN 115702964A
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Abstract
The invention discloses an adjustable pressure limiting valve with safety indication, which comprises: 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 carrying out different prompting operations according to different working states of the APL valve. By using the adjustable pressure limiting valve with the safety indication, the risk of overhigh pressure after the anesthesia system is switched from mechanical ventilation to manual ventilation can be effectively reduced.
Description
Technical Field
The invention relates to the technical field of anesthesia systems, in particular to an adjustable pressure limiting valve with a safety indication function.
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 can conduct ventilation operation on the patient by squeezing the manual leather bag, 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, and therefore 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 an urgent problem to be solved by those skilled in the art.
Disclosure of Invention
In view of this, the present invention provides an adjustable pressure limiting valve with safety indication, which can effectively reduce the risk of over-high pressure after the anesthesia system is switched from mechanical ventilation to manual ventilation.
In order to achieve the above purpose, the invention provides the following technical scheme:
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 the 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 lamp connected with the monitoring unit, and the indicator lamp can be lightened when the APL valve operates.
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.
When the adjustable pressure limiting valve with the safety indication is used, when an operator switches the ventilation mode of the breathing circuit system by using the switch, the APL valve is changed from the non-working state to the working state when the breathing circuit system is switched from the mechanical ventilation mode to the manual ventilation mode, and meanwhile, the prompting device can perform different prompting operations, so that the operator is timely reminded of the current manual ventilation mode, the operator can actively confirm whether the maximum airway pressure set by the APL valve is suitable for the current patient, and the phenomenon that the patient is damaged due to the overhigh airway pressure is avoided.
In conclusion, the adjustable pressure limiting valve with the safety indication provided by the invention can effectively reduce the risk of overhigh pressure after the anesthesia system is switched from mechanical ventilation to manual ventilation.
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, 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 illustration of a safety indicating adjustable pressure limiting valve provided by the present invention in a manual venting mode;
FIG. 2 is a schematic diagram of the structure of an APL valve and 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 clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The core of the invention is to provide the adjustable pressure limiting valve with the safety indication, which can effectively reduce the risk of overhigh pressure after the anesthesia system is switched from mechanical ventilation to manual ventilation.
Referring to fig. 1 to 3, fig. 1 is a schematic diagram of an adjustable pressure limiting valve with safety indicator according to the present invention in a manual ventilation mode; FIG. 2 is a schematic diagram of the structure of an APL valve and indicator light; fig. 3 is a cross-sectional view of fig. 2.
This particular embodiment provides a take safety indicator's adjustable pressure limiting 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 Limiting 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 operation 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 requirement.
When the adjustable pressure limiting valve with the safety indication, provided by the invention, is used, when an operator switches the ventilation mode of the breathing circuit system by using the switch, so that the breathing circuit system is switched from the mechanical ventilation mode to the manual ventilation mode, the APL valve 1 is changed from the non-working state to the working state, and meanwhile, the prompting device can perform different prompting operations, so that the operator is timely reminded of being in the manual ventilation mode, the operator can 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.
In conclusion, the adjustable pressure limiting valve with the safety indication, provided by the invention, can effectively reduce the risk of overhigh pressure after the anesthesia system is switched from mechanical ventilation to manual ventilation.
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 And then through the inspiratory line 3 into the patient, during which process if the patient's airway pressure is higher than the maximum pressure set by the APL valve 1, the flow of gas will overflow the APL valve 1 into the exhaust gas treatment system. When the operator releases the manual leather bag 5, the airflow of 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 airway pressure.
Preferably, the prompting device comprises a monitoring unit for detecting the set pressure of the APL valve 1 and an indicator lamp 2 connected with the monitoring unit, wherein the indicator lamp 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 immediately lightened, so that the change condition can be timely reminded to an operator, 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 the adjustable pressure limiting valve with safety indication provided by the present invention is used, if the breathing circuit system is in a shutdown or standby state, no processing is performed on the components, that is, the indicator light 2 on the APL valve 1 is in an 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 opened state, namely the set pressure of the APL valve 1 is 0 cm water column, the indicator light 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 when an operator checks and adjusts the APL valve 1, the change of the indicator light 2 can be observed synchronously, so as to save time and improve 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. Any combination of all embodiments provided by the present invention is within the scope of the present invention, and details are not described herein.
The adjustable pressure limiting valve with safety indication provided by the present invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
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 carrying out 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 the 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, wherein 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 wherein 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 |
|---|---|---|---|
| CN202110913595.XA CN115702964A (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 |
|---|---|---|---|
| CN202110913595.XA CN115702964A (en) | 2021-08-10 | 2021-08-10 | Adjustable pressure limiting valve with safety indication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115702964A true CN115702964A (en) | 2023-02-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110913595.XA Pending CN115702964A (en) | 2021-08-10 | 2021-08-10 | Adjustable pressure limiting valve with safety indication |
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| Country | Link |
|---|---|
| CN (1) | CN115702964A (en) |
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2021
- 2021-08-10 CN CN202110913595.XA patent/CN115702964A/en active Pending
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