CN212214330U

CN212214330U - Nitric oxide therapeutic instrument

Info

Publication number: CN212214330U
Application number: CN201920775751.9U
Authority: CN
Inventors: 张伟
Original assignee: Foshan Analytical Instrument Co ltd
Current assignee: Foshan Analytical Instrument Co ltd
Priority date: 2019-05-27
Filing date: 2019-05-27
Publication date: 2020-12-25
Anticipated expiration: 2029-05-27

Abstract

The utility model provides a nitric oxide therapeutic instrument, includes the casing, the casing internal fixation has NO control assembly, detection module, power supply module and control module, control module with power supply module electric connection, NO control assembly includes mass flow controller, detection module includes air pump, detection sensor and three way solenoid valve, detection sensor includes NO detection sensor and NO₂The detection sensor is characterized in that an outlet pipeline of the three-way electromagnetic valve is divided into a detection gas circuit and a set gas circuit, the detection gas circuit is communicated with the air pump and the detection sensor, the set gas circuit is communicated with the atmosphere, and the detection sensor is connected with the mass flowAnd the volume controller and the three-way electromagnetic valve are electrically connected with the control module. The detection sensor of the therapeutic apparatus is provided with a special setting air path for setting the return-to-zero of the sensor, and can prevent residual therapeutic gas in the pipeline from influencing the detection value of the sensor, so that the detection of the therapeutic apparatus is more accurate.

Description

Nitric oxide therapeutic instrument

Technical Field

The utility model relates to a medical device, in particular to a nitric oxide therapeutic apparatus.

Background

Inhalation of Nitric Oxide (NO) is a new technique of respiratory first aid applied to clinic in the 90 s of the 20 th century, and is emphasized because of its advantages of fast curative effect, non-traumatic property and high selectivity. Currently, NO has been used in increasing clinical applications as a new method for treating diseases such as acute respiratory failure syndrome, hypertension and some diseases related to the lung. It is especially used for treating Persistent Pulmonary Hypertension (PPHN), Acute Respiratory Distress Syndrome (ARDS), congenital heart disease complicated with pulmonary hypertension (CHD + PH), bronchopulmonary dysplasia (BPD), and High Altitude Pulmonary Edema (HAPE) of newborn.

According to the traditional nitric oxide therapeutic apparatus, only one detection gas path is used as a detection sensor, and therapeutic gas possibly remains in the pipeline, so that when the apparatus is restarted or started, the detection sensor is inaccurate in zero return, the detection result is inaccurate, and the treatment effect of a patient is influenced or even the health of the patient is damaged.

SUMMERY OF THE UTILITY MODEL

To the problem, the utility model provides a nitric oxide therapeutic instrument, this therapeutic instrument detection sensor have one specially to set for the gas circuit for the setting of zeroing of sensor can prevent that remaining treatment gas influences sensor detection numerical value in the pipeline, makes this therapeutic instrument detect more accurately.

The utility model provides a nitric oxide therapeutic instrument, which comprises a housin, the casing internal fixation has NO control assembly, determine module, power supply module and control module, control module with power supply module electric connection, NO control assembly includes mass flow controller, determine module includes air pump, detection sensor and three way solenoid valve, it includes NO detection sensor and NO detection sensor to detect the sensor₂The detection sensor, three way solenoid valve outlet pipeline divide into and detects the gas circuit and sets for the gas circuit, detect the gas circuit intercommunication air pump and detection sensor, set for and be provided with first filter on the gas circuit, detect the sensor quality flow controller and three way solenoid valve all with control module electric connection.

Preferably, the control module includes a control screen and a control chip storing calibration information of the detection sensor and control information of the quality process controller, the control screen is electrically connected to the control chip, and the control chip is electrically connected to the power supply assembly.

Preferably, the control screen is a touch screen.

Preferably, the shell is provided with a detection air inlet and a detection air outlet which are communicated with the detection assembly through pipelines, and the shell is also provided with an air distribution air inlet and an air distribution air outlet which are communicated with the mass flow controller.

Preferably, a second filter is further disposed on the housing, and the second filter is communicated with the detection air inlet.

Preferably, the power supply assembly comprises a circuit board, a power socket and a switch, and the power socket and the switch are electrically connected with the circuit board.

Preferably, the power supply assembly further comprises a filter, the filter being electrically connected to the circuit board.

Preferably, the nitric oxide therapeutic apparatus further comprises a printer, and the printer is electrically connected with the power supply assembly.

Preferably, a buzzer is arranged on the shell and electrically connected with the control module.

The utility model discloses following beneficial effect has:

the detection sensor of the therapeutic apparatus is provided with a special setting air path for setting the return-to-zero of the sensor, and can prevent residual therapeutic gas in the pipeline from influencing the detection value of the sensor, so that the detection of the therapeutic apparatus is more accurate. The first filter can filter moisture in the air and prevent the moisture from damaging the detection sensor.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent in light of the detailed description of the preferred embodiments of the present invention as illustrated in the accompanying drawings. Like reference numerals refer to like parts throughout the drawings, and the drawings are not intended to be drawn to scale in actual dimensions, emphasis instead being placed upon illustrating the principles of the invention.

FIG. 1 is a schematic view of the whole structure of the therapeutic apparatus according to the preferred embodiment of the present invention;

FIG. 2 is a schematic view of the interior of the therapeutic apparatus according to the preferred embodiment of the present invention;

fig. 3 is a schematic view of the connection of the therapeutic apparatus according to the preferred embodiment of the present invention in use.

Reference numerals: the device comprises a shell 1, a mass flow controller 2, a gas distribution air inlet 22, a gas distribution air outlet, a detection sensor 31, a three-way electromagnetic valve 32, a 321 detection air passage, a 322 setting air passage 33, an air pump 34, a first filter 35, a second filter 35, a 36 detection air inlet, a 37 detection air outlet, a 41 control screen, a 5 power supply assembly, a 52 power supply socket, a 53 switch, a 6 printer, a 7 buzzer, an 8 air pipe, a 91NO gas cylinder, a 92 respirator, a 93 mixing device and a 94 mask.

Detailed Description

The technical solution of the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not limited to the present invention.

Referring to fig. 1-3, the present invention provides a nitric oxide therapeutic apparatus which is connected to an NO gas cylinder 91 and a ventilator 92 through a gas tube 8 and can provide a therapeutic gas containing a certain NO concentration to a patient. The therapeutic instrument comprises a shell 1, wherein an NO control assembly, a detection assembly, a power supply assembly 5 and a control module are fixed in the shell 1. The control module is electrically connected with the power supply assembly 5, and the control module stores a control program and can control the operation of the NO control assembly, the detection assembly and related assemblies. The NO control assembly comprises a mass flow controller 2, and the mass flow controller 2 is a controller which is manufactured by Beijing seven-star Hua Chuang electronic corporation and has the model number of D07-11C. The battery valve is arranged in the mass flow controller 2, and the control module can control the battery valve in the mass flow controller to realize the control of the output flow of the NO treatment gas. The detection assembly comprises an air pump 33, a detection sensor 31 and a three-way solenoid valve 32. The detection sensor 31 includes an NO detection sensor and NO₂As the detection sensor, sensors manufactured by UK City science and technology Co., Ltd., models 7NT and 4ND, respectively, can be used. Can separately detect NO and NO in the therapeutic gas₂The concentration of (c). The outlet pipeline of the three-way solenoid valve 32 is divided into a detection gas path 321 and a setting gas path 322The detection air path 321 connects the air pump 33 and the detection sensor 31, and the therapeutic gas enters the detection sensor 31 through the detection air path 321 under the suction action of the air pump 33. The setting air channel 322 is communicated with the atmosphere and is used for setting the sensor to return to zero when the therapeutic apparatus is started. The detection sensor 31, the mass flow controller 2 and the three-way electromagnetic valve 32 are electrically connected with the control module. When the NO gas supply device is used, the NO gas bottle 91 supplies NO gas with certain pressure to the therapeutic instrument, the therapeutic instrument controls the flow of the NO gas through the mass flow controller 2, and therefore the therapeutic instrument outputs the NO gas with certain mass flow. The NO gas output from the therapeutic apparatus is mixed with the gas output from the ventilator 92 by a mixing device 93 to form therapeutic gas, one path of the therapeutic gas is supplied to the breathing mask 94 for patient treatment, the other path of the therapeutic gas enters the therapeutic apparatus again, and the therapeutic gas enters the detection sensor 31 through the detection gas path 321 of the three-way solenoid valve 32. The detection sensor 31 detects NO and NO in the therapeutic gas₂The concentration is transmitted to a control module, and the control module adjusts the mass flow controller 2 according to the detection value and the preset value to realize the control of the concentration of NO in the therapeutic gas. In NO or NO₂When the concentration exceeds a certain set value, the control module can also send out corresponding actions, such as alarming or cutting off NO gas output and the like, so that harm to patients is prevented. In addition, the three-way electromagnetic valve 32 is also provided with a set air path 322 for zeroing the detection sensor 31 when the therapeutic apparatus is started or restarted, the set air path 322 is communicated with the atmosphere, the three-way electromagnetic valve 32 is not communicated with the mixing device 93 when the detection sensor is zeroed, the air pump 33 pumps air through the set air path 322, and because the air gas hardly contains NO or NO, the air gas hardly contains NO₂Gas, so can realize the accurate zero return to detecting sensor 31, prevent that detecting sensor 31 from returning to zero inaccurate, improve the accuracy that detects. Set for and be provided with first filter 34 on the gas circuit 322, first filter 34 intercommunication air can the moisture in the filtered air to avoid dividing the water and producing the harm to detecting sensor 31, cause and detect inaccurate scheduling problem.

Referring to fig. 2, in a preferred embodiment, the housing 1 is provided with a detection gas inlet 36 and a detection gas outlet 37 both communicated with the detection module through the gas pipe 8, the therapeutic gas enters the detection module through the detection gas inlet 36, and the therapeutic gas is discharged to a recovery container or an outdoor space without harm to human body through the detection gas outlet 37 after being detected. And the shell 1 is also provided with an air distribution air inlet 21 and an air distribution air outlet 22 which are communicated with the mass flow controller 2. The NO gas bottle 91 is communicated with a gas distribution inlet 21 through a pipeline, and a gas distribution outlet 22 is communicated with a mixing device 93, so that the NO gas is mixed with the gas of the respirator 92. The detection air inlet 36, the detection air outlet 37, the air distribution air inlet 21 and the air distribution air outlet 22 can adopt common air nozzles or air connectors or other forms, so that the air pipe 8 can be conveniently connected.

Referring to fig. 2, in a preferred embodiment, the housing 1 is further provided with a second filter 35, the second filter 35 is communicated with the detection inlet 36, and since moisture may exist in the gas output by the ventilator 92 or in the NO gas cylinder 91, moisture may exist in the therapeutic gas, and the moisture may damage the detection sensor 31, reducing the life and accuracy thereof, the second filter 35 may filter and absorb the moisture in the therapeutic gas entering the detection sensor 31. Of course, the second filter 35 may be configured to absorb components harmful to the detection sensor 31 in addition to moisture.

Referring to fig. 2, in the preferred embodiment, the power supply assembly 5 comprises a circuit board (not shown) on which the circuit control information of the therapeutic apparatus is integrated, a power socket 52 and a switch 53, both of which are electrically connected to the circuit board 52 and the switch 53. The power socket 52 and the switch 53 are fixed on the shell 1, the therapeutic apparatus is also provided with a power cord, the power cord is plugged in the power socket 52, and the switch 53 can switch on and off the power supply. Further, the power supply module 5 further includes a filter (not shown), and the filter is electrically connected to the circuit board. The filter can play a role in stabilizing voltage and filtering clutter of the mains supply.

Referring to fig. 2, in a preferred embodiment, the control module includes a control panel 41 and a control chip (not shown) storing calibration information of the detection sensor 31 and control information of the quality process controller, the control panel 41 is electrically connected to the control chip, and the controllerThe control chip can be fixed on the circuit board or fixed at other positions. Further, the control panel 41 is a touch panel. The concentration of NO gas in the therapeutic gas can be set more conveniently through the touch screen, and when the detection value is larger than or smaller than the set value, the control chip can adjust the mass flow controller 2 so as to adjust the flow of the NO gas and keep the concentration of the NO at the set value. NO and NO can be set on the touch screen₂The upper limit of the concentration, beyond which the NO supply is to be interrupted, is set off as an alarm, thereby avoiding damage to the patient's body.

Referring to fig. 2, in a preferred embodiment, the nitric oxide treatment device further comprises a printer 6, wherein the printer 6 is electrically connected to the power supply assembly 5. At the end of the treatment, information including treatment time, NO concentration and the like can be printed out through the printer 6, and the information is used for recording statistics of the treatment process and is convenient to consult.

Referring to fig. 1, in a preferred embodiment, a buzzer 7 is disposed on the housing 1, and the buzzer 7 is electrically connected to the control module. The buzzer 7 can be in NO or NO₂When the concentration exceeds the set value, an alarm is given, and when the treatment is finished, a buzzer can be given, so that the functions of warning and reminding are achieved.

The utility model provides a nitric oxide therapeutic instrument, this therapeutic instrument detection sensor have one specially to set for the gas circuit for the setting of zeroing of sensor can prevent that remaining treatment gas influences sensor detection numerical value in the pipeline, makes this therapeutic instrument detect more accurately. The therapeutic apparatus is provided with two filters which can filter moisture entering the gas of the detection sensor, thereby protecting the detection sensor and improving the detection precision. The therapeutic apparatus is also provided with a printer which can print treatment information.

The above is only the preferred embodiment of the present invention, and not the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings or the direct or indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. The utility model provides a nitric oxide therapeutic instrument, which comprises a housin, the casing internal fixation has NO control assembly, determine module, power supply module and control module, control module with power supply module electric connection, a serial communication port, NO control assembly includes mass flow controller, determine module includes the air pump, detects sensor and three way solenoid valve, it includes NO detection sensor and NO2 detection sensor to detect the sensor, three way solenoid valve outlet pipeline divide into and detects the gas circuit and set for the gas circuit, detect the gas circuit intercommunication air pump and detection sensor, set for and be provided with first filter on the gas circuit, detect the sensor mass flow controller and three way solenoid valve all with control module electric connection.

2. The nitric oxide therapeutic apparatus according to claim 1, wherein the control module comprises a control panel and a control chip storing calibration information of the detection sensor and control information of the quality process controller, the control panel is electrically connected to the control chip, and the control chip is electrically connected to the power supply assembly.

3. The nitric oxide therapeutic apparatus of claim 2, wherein said control panel is a touch panel.

4. The nitric oxide therapeutic apparatus of claim 1, wherein the housing is provided with a detection air inlet and a detection air outlet both communicated with the detection assembly through a pipeline, and the housing is further provided with an air distribution air inlet and an air distribution air outlet both communicated with the mass flow controller.

5. The nitric oxide treatment apparatus of claim 4, wherein said housing further comprises a second filter in communication with said detection inlet.

6. The nitric oxide therapeutic apparatus of claim 1, wherein the power supply comprises a circuit board, a power socket and a switch, and the power socket and the switch are electrically connected to the circuit board.

7. The nitric oxide therapeutic apparatus of claim 6, wherein said power supply further comprises a filter, said filter being electrically connected to said circuit board.

8. The nitric oxide treatment apparatus according to claim 1, further comprising a printer, wherein said printer is electrically connected to said power supply.

9. The nitric oxide therapeutic apparatus according to claim 1, wherein a buzzer is disposed on the housing, and the buzzer is electrically connected to the control module.