CN117797373A - Oxygen concentration monitor of breathing machine - Google Patents
Oxygen concentration monitor of breathing machine Download PDFInfo
- Publication number
- CN117797373A CN117797373A CN202410046064.9A CN202410046064A CN117797373A CN 117797373 A CN117797373 A CN 117797373A CN 202410046064 A CN202410046064 A CN 202410046064A CN 117797373 A CN117797373 A CN 117797373A
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- Prior art keywords
- monitoring
- oxygen concentration
- pipe
- bin
- concentration monitor
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 58
- 239000001301 oxygen Substances 0.000 title claims abstract description 58
- 230000029058 respiratory gaseous exchange Effects 0.000 title claims abstract description 22
- 238000012544 monitoring process Methods 0.000 claims abstract description 90
- 239000007789 gas Substances 0.000 claims abstract description 44
- 238000005192 partition Methods 0.000 claims abstract description 12
- 230000005298 paramagnetic effect Effects 0.000 claims abstract description 8
- 230000005291 magnetic effect Effects 0.000 claims description 20
- 238000012546 transfer Methods 0.000 claims description 12
- 230000000149 penetrating effect Effects 0.000 claims description 9
- 238000007664 blowing Methods 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 abstract description 7
- 206010002091 Anaesthesia Diseases 0.000 abstract description 3
- 230000037005 anaesthesia Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000002695 general anesthesia Methods 0.000 abstract description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 210000001503 joint Anatomy 0.000 description 4
- 230000000241 respiratory effect Effects 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 208000004756 Respiratory Insufficiency Diseases 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 210000004072 lung Anatomy 0.000 description 2
- 201000004193 respiratory failure Diseases 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005399 mechanical ventilation Methods 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000036387 respiratory rate Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
Abstract
The invention provides a ventilator oxygen concentration monitor, which relates to the technical field of medical treatment, and comprises a machine box, a control terminal and a clamping seat, wherein the control terminal is embedded on the surface of the machine box, the clamping seat is fixed on the outer side of the machine box, a monitoring cylinder is arranged in the machine box, a partition plate is vertically arranged in the monitoring cylinder, a monitoring bin is fixed in the middle of the partition plate, and a monitoring component based on a paramagnetic oxygen measuring principle is arranged in the monitoring bin and used for monitoring the oxygen concentration of passing gas; the invention has the beneficial effects that: the oxygen concentration monitoring through gas can be completed by combining the monitoring component arranged in the structure, and the difference between the inhaled oxygen concentration and the end-expiratory oxygen concentration is monitored by using the anesthesia respirator, so that the breathing machine ventilation volume of a patient can be monitored in general anesthesia operation.
Description
Technical Field
The invention relates to the technical field of medical treatment, in particular to a respirator oxygen concentration monitor.
Background
In modern clinical medicine, a respirator is used as an effective means capable of replacing autonomous ventilation by manpower, is widely used for respiratory failure caused by various reasons, anesthesia respiratory management during major surgery, respiratory support treatment and emergency resuscitation, and occupies a very important position in the field of modern medicine. The breathing machine is a vital medical device which can prevent and treat respiratory failure, reduce complications, save and prolong the life of patients.
The monitoring parameters of the ventilator refer to a set of data and indexes for monitoring and evaluating the functions of the ventilator, and the parameters reflect important functional indexes such as gas flow, oxygen concentration, respiratory rate, tidal volume, positive end expiratory pressure and the like provided by the ventilator in the mechanical ventilation process, wherein the oxygen concentration and the carbon dioxide concentration are the other two important indexes to be monitored, and the end expiratory carbon dioxide (ETCO 2) monitoring is a noninvasive, simple, real-time and continuous functional monitoring index which is increasingly widely used in clinical work of emergency departments;
the difference between the concentration of inhaled air and the concentration of end-tidal oxygen (I-ETO 2) is a good index for monitoring the ventilation function, when the ventilation function is monitored to be reduced, the sensitivity of the oxygen monitoring system is far greater than the sensitivity of end-tidal carbon dioxide (ETCO 2) and the pulse blood oxygen saturation (sPO), the oxygen monitoring of the existing breathing machine is usually realized by adopting built-in sensors, however, because the output pipeline of the breathing machine is usually connected with a plurality of sections of external pipelines, humidifiers and the like, the oxygen supply quantity and the actual oxygen supply gas content are different, the breathing machine continuously supplies the gas in the oxygen supply process, the oxygen content is accumulated to a certain extent, the high-concentration oxygen not only brings difficulty to the breathing of a patient, but also causes oxygen poisoning to occur easily due to the uneven breathing of the breathing machine, so that the existing breathing machine needs to be debugged and corrected before the use, and the trouble is brought to the daily use of the breathing machine.
Disclosure of Invention
Aiming at the technical problems in the prior art, the oxygen concentration monitor of the breathing machine is provided.
The aim and the effect of the invention are achieved by the following specific technical means:
the utility model provides a breathing machine oxygen concentration monitor, includes box, control terminal and holder, control terminal inlays the dress in the box surface, the holder is fixed in the box outside, be provided with a monitoring section of thick bamboo in the box, the baffle is separated from top to bottom to the monitoring section of thick bamboo, and the baffle middle part is fixed with the monitoring storehouse, be provided with the monitoring subassembly based on paramagnetic oxygen measurement principle in the monitoring storehouse for carry out oxygen concentration monitoring to the gas that passes through;
the two ends of the monitoring cylinder are respectively communicated with a first switching valve and a second switching valve, an air supply pipe seat is arranged between the first switching valve and the outer side of the machine box in a penetrating way, an input pipe and an output pipe are respectively arranged between the second switching valve and the monitoring bin which is vertically separated in a penetrating way, and the input pipe and the output pipe are respectively externally connected with a transit bin and an outlet pipe;
the outlet pipe is externally connected with a flow valve seat, a flowmeter and a middle through column are arranged in the flow valve seat in a combined mode, an air plug disc is communicated with one end of the flow valve seat corresponding to the outlet pipe, the air plug disc comprises two diversion pipelines, one of the diversion pipelines is communicated with the middle through column to form an external connection pipe, and a return pipe is communicated between the other end of the middle through column and the transfer bin.
Further preferred embodiments are as follows: the monitoring assembly comprises a lens assembly, a dumbbell, a magnetic column assembly, a reflecting mirror, magnetic poles and a connecting rod, wherein the dumbbell is fixed at two ends of the connecting rod, the reflecting mirror is fixed at the middle of the connecting rod, one end of the magnetic column assembly is vertically fixed with the connecting rod, the other end of the magnetic column assembly is connected with a control terminal, the magnetic poles are fixed with the inner wall of a monitoring bin and distributed at the upper end and the lower end of the dumbbell, one end of the lens assembly transversely penetrates through the outside of the monitoring bin, the other end of the lens assembly is connected with the control terminal, an LED light source and a photoelectric sensor are arranged at the joint of the lens assembly and the monitoring bin in an up-down opposite mode, and the LED light source, the photoelectric sensor and the reflecting mirror are in position phase-match.
Further preferred embodiments are as follows: a one-way plug is embedded between the monitoring cylinder and the first transfer valve and is communicated with the inner cavity of the lower half part of the monitoring cylinder, and an outlet is formed outside the inner cavity of the upper half part of the monitoring cylinder.
Further preferred embodiments are as follows: the outer end opening of the air supply pipe seat is provided with a clamping opening plug, and the concave side of the clamping opening plug is led to the pipe orifice structure.
Further preferred embodiments are as follows: the air supply pipe seat is communicated with the first transfer valve through a disc-shaped pipe, a plurality of partition leaves are stacked in the disc-shaped pipe in an annular mode, and the disc-shaped pipe is communicated with the first transfer valve through a partition leaf gap.
Further preferred embodiments are as follows: a blowing unit is arranged between the output pipe and the outlet pipe in a penetrating way.
Further preferred embodiments are as follows: the input pipe and the output pipe are electromagnetic valve pipes.
Further preferred embodiments are as follows: the flowmeter is a rotary vane flowmeter, and the flowmeter vane is rotationally connected with the middle through column.
Compared with the prior art, the invention has the beneficial effects that:
the oxygen concentration monitor of the breathing machine provided by the invention can transit the butt joint breathing machine and an external oxygen supply pipeline through the pipeline structure, the oxygen concentration monitoring through gas is completed by combining the monitoring component arranged in the structure, the difference between the inhaled oxygen concentration and the end-expiratory oxygen concentration is monitored by utilizing the anesthesia breathing machine, whether the breathing machine ventilation volume of a patient is suddenly reduced or not can be monitored in general anesthesia operation, the real-time feedback is carried out through the control terminal, the inhaled oxygen concentration and the exhaled oxygen concentration are monitored simultaneously by combining the paramagnetic oxygen measuring principle, the difference (I-EtO 2) between each exhalation and each inhalation is automatically calculated, and compared with the traditional ETCO2 and PetCO2 detection modes, the I-EtO2 can be also used for lung ventilation monitoring in the clinical field and is more sensitive than PetCO2 in the aspect of reflecting lung ventilation volume reduction, so that the oxygen concentration monitoring precision and the practicability of the monitor are improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal planar structure of the present invention;
FIG. 3 is a schematic view of the internal structure of the monitor cylinder according to the present invention;
FIG. 4 is a schematic diagram of the internal side plan view of the monitoring bin of the present invention;
FIG. 5 is a schematic view of the internal structure of the air supply pipe seat of the present invention;
FIG. 6 is a schematic view of the internal structure of the flow valve seat of the present invention.
The marks in the figure: 1-a machine box; 2-a control terminal; 3-clamping seats; 4-a gas supply pipe seat; 5-outlet pipe; 6-a flow valve seat; 7-a return pipe; 8-an air plug disc; 9-monitoring a barrel; 10-a lens assembly; 11-a clipping plug; 12-disc-type tube; 13-a first transfer valve; 14-a second switching valve; 15-blowing a unit; 16-a transfer bin; 17-a one-way plug; 18-monitoring a bin; 19-an input tube; 20-outputting pipe; 21-a separator; 22-dumbbell; 23-magnetic column assembly; 24-mirrors; 25-pole; 26-LED light source; 27-a photosensor; 28-connecting rod; 29-separating leaves; 30-a flow meter; 31-take-over; 32-middle through column.
Detailed Description
Referring to fig. 1-6, embodiments of the present invention are further described;
the utility model provides a breathing machine oxygen concentration monitor, includes box 1, control terminal 2 and holder 3, and control terminal 2 inlays in box 1 surface, and holder 3 is fixed in box 1 outside, is provided with monitor cylinder 9 in the box 1, and the upper and lower partition has baffle 21 in the monitor cylinder 9, and is fixed with the monitoring storehouse 18 in the middle part of baffle 21, is provided with the monitoring subassembly based on paramagnetic oxygen measuring principle in the monitoring storehouse 18, is used for carrying out oxygen concentration monitoring to the gas that passes through;
the two ends of the monitoring cylinder 9 are respectively communicated with a first switching valve 13 and a second switching valve 14, an air supply pipe seat 4 is arranged between the first switching valve 13 and the outer side of the machine box 1 in a penetrating way, an input pipe 19 and an output pipe 20 are respectively arranged between the second switching valve 14 and a monitoring bin 18 which is vertically separated in a penetrating way, and the input pipe 19 and the output pipe 20 are respectively externally connected with a transit bin 16 and an outlet pipe 5;
the outlet pipe 5 is externally connected with a flow valve seat 6, a flowmeter 30 and a middle through column 32 are arranged in the flow valve seat 6 in a combined mode, one end, opposite to the outlet pipe 5, of the flow valve seat 6 is communicated with an air plug disc 8, the air plug disc 8 comprises two diversion pipelines, one diversion pipeline is communicated with the middle through column 32 to form an outer connecting pipe 31, and a return pipe 7 is communicated between the other end of the middle through column 32 and the middle transfer bin 16.
The monitor mainly uses a clamping seat 3 as a clamping structure of a machine box 1, so as to fix the machine box 1 on a breathing machine or other support structures, and uses a gas supply tube seat 4 and a gas plug disc 8 as an access end and a gas supply output end of a gas supply pipeline of the monitor respectively, wherein gas output in the gas supply process of the breathing machine enters the gas supply tube seat 4 along the gas supply pipeline and enters a lower cavity in a monitoring cylinder 9 along a first switching valve 13, oxygen concentration is measured through a monitoring component in the monitoring bin 18 after the gas is mixed into the monitoring bin 18, the monitoring principle is based on a paramagnetic oxygen measuring principle, then the gas is output to an outlet tube 5 along an output tube 20 in a second switching valve 14, then the flow measurement of output gas flow is finished through a flowmeter 30 in a flow valve seat 6, finally the gas is output through one of shunt pipelines in the gas plug disc 8, meanwhile, the other branch pipeline in the air lock disk 8 can be connected with the respiratory mask structure of the patient, the exhaled air of the patient can flow into the reflux pipe 7 through the branch pipeline, the external connection pipe 31 and the middle through column 32, then the gas is guided to the upper part cavity of the monitoring cylinder 9 through the transit bin 16 and the input pipe 19, the monitoring of the oxygen concentration of the exhaled air is finished through the monitoring component, the automatic collection of the finished IEtO2 data is convenient for medical staff to judge the using condition of the respirator and the respiratory condition of the patient according to the data, compared with the traditional oxygen concentration monitoring mode of the respirator, the error of the actual air supply data is reduced through the transit air supply and real-time monitoring mode of the monitor pipeline, the monitoring precision is improved, the trouble that the precision correction is required when the respirator is used in daily life is avoided, and the practicability and the safety of the monitor are improved.
Further, the monitoring assembly comprises a lens assembly 10, a dumbbell 22, a magnetic column assembly 23, a reflecting mirror 24, magnetic poles 25 and a connecting rod 28, wherein the dumbbell 22 is fixed at two ends of the connecting rod 28, the reflecting mirror 24 is fixed at the middle part of the connecting rod 28, one end of the magnetic column assembly 23 is vertically fixed with the connecting rod 28, the other end of the magnetic column assembly is connected with a control terminal 2, the magnetic poles 25 are fixed with the inner wall of a monitoring bin 18 and distributed at the upper end and the lower end of the dumbbell 22, one end of the lens assembly 10 transversely penetrates through the monitoring bin 18, the other end of the lens assembly is connected with the control terminal 2, the control terminal 2 performs terminal interaction control on the basis of a PLC control principle on the basis of the applied electric elements, as a central control end of a user, an LED light source 26 and a photoelectric sensor 27 are arranged at the joint of the lens assembly 10 and the monitoring bin 18 in an up-down opposite manner, and the positions of the LED light source 26 and the photoelectric sensor 27 are matched with the reflecting mirror 24;
as shown in fig. 3 and 4, the monitoring component of the monitor is based on the paramagnetic oxygen concentration measurement principle, according to the principle that oxygen is a special paramagnetic gas, when oxygen passes through the monitoring cabin 18, a magnetic field is formed in the monitoring cabin 18 by the magnetic pole 25, the oxygen is attracted in the magnetic field and forces the dumbbell 22 to deflect along the magnetic column component 23 along with the connecting rod 28, that is, the higher the oxygen concentration is, the larger the angle position of the dumbbell 22 after deflection is static, and the light source is emitted to the reflecting mirror 24 through the LED light source 26 in the lens component 10, the light source is received by the photoelectric sensor 27 after being reflected by the reflecting mirror 24, and because the reflecting mirror 24 is arranged on the connecting rod 28, the deflection angle of the connecting rod 28 corresponds to the change of the angle between the reflecting mirror 24 and the light source, so as to obtain the deflection positions of the whole structure of the connecting rod 22 and the connecting rod 28, and finally the control terminal 2 performs compensation reset of the connecting rod 28 by sending reset current to the magnetic column component 23 end through the obtained deflection position, that is in direct proportion to the magnitude of the reset current and the oxygen concentration.
Further, a one-way plug 17 is embedded between the monitoring cylinder 9 and the first switching valve 13, the one-way plug 17 is communicated with the inner cavity of the lower half part of the monitoring cylinder 9, an outlet is communicated outside the inner cavity of the upper half part of the monitoring cylinder 9, the one-way plug 17 is used as a one-way output pipe orifice between the first switching valve 13 and the monitoring cylinder 9, and the inner cavities of the monitoring cylinder 9 which are vertically separated are respectively used as monitoring chambers for supplying gas and exhaling gas, wherein the exhaling gas of a patient is exhausted through the outlet which is externally communicated;
on the basis of the above, the input pipe 19 and the output pipe 20 are solenoid valve pipes, when the supplied gas and the exhaled gas are measured before, the upper and lower inner cavities in the monitoring cylinder 9 are communicated with the monitoring bin 18, and the communication between the monitoring cylinder 9 and the input pipe 19 and the output pipe 20 is switched by controlling the opening and closing of the valves of the input pipe 19 and the output pipe 20, so as to distinguish and complete the monitoring of the oxygen concentration of the exhaled gas and the supplied gas.
Specifically, the outer end opening of the air supply pipe seat 4 is provided with a clamping opening plug 11, the concave side of the clamping opening plug 11 leads to a pipe orifice structure, the clamping opening plug 11 is in butt joint with a pipeline through the concave pipe orifice structure, and the air supply pipeline is in butt joint through the pipe orifice structure led to the side, so that the air tightness of the butt joint position of the air supply pipe seat 4 and the air supply pipeline is improved.
On the basis of the above, a disc-shaped pipe 12 is communicated between the gas supply pipe seat 4 and the first switching valve 13, a plurality of partition blades 29 are annularly stacked in the disc-shaped pipe 12, the disc-shaped pipe 12 is communicated with the first switching valve 13 through the gaps of the partition blades 29, the disc-shaped pipe 12 is used as a transfer pipeline among the gas supply pipe seat 4, the first switching valve 13 and the monitoring cylinder 9, the flow rate of gas supplied by the pipeline is reduced through the gap structure of the partition blades 29, so that the pressure difference of the gas supplied by the monitoring cylinder 9 to the gas input end is reduced, and the influence of the gas pressure difference between the first switching valve 13 and the second switching valve 14 at the two ends of the monitoring cylinder 9 on the gas distribution in the monitoring cylinder 9 is avoided;
further, a blower unit 15 is arranged between the output tube 20 and the outlet tube 5 in a penetrating manner, and the blower unit 15 axially sucks the gas in the pipeline of the output tube 20 through the rotation of mechanical fan blades and pumps the gas to the pipeline of the outlet tube 5, so as to avoid the influence of the monitor pipeline on the actual flow rate of the gas.
Further, the flowmeter 30 is a rotary vane flowmeter, the blades of the flowmeter 30 are rotatably connected with the central through column 32, and the rotary vane flowmeter is adopted to meter the gas passing through the flow valve seat 6 so as to monitor the gas supply flow in real time.
Claims (8)
1. The utility model provides a breathing machine oxygen concentration monitor, includes box (1), control terminal (2) and cassette (3), control terminal (2) inlay dress in box (1) surface, cassette (3) are fixed in box (1) outside, its characterized in that: the machine box (1) is internally provided with a monitoring cylinder (9), a partition board (21) is partitioned from top to bottom in the monitoring cylinder (9), a monitoring bin (18) is fixed in the middle of the partition board (21), and a monitoring component based on a paramagnetic oxygen measuring principle is arranged in the monitoring bin (18) and used for monitoring the oxygen concentration of the passing gas;
the two ends of the monitoring cylinder (9) are respectively communicated with a first switching valve (13) and a second switching valve (14), an air supply pipe seat (4) is arranged between the first switching valve (13) and the outer side of the machine box (1) in a penetrating way, an input pipe (19) and an output pipe (20) are respectively arranged between the second switching valve (14) and a monitoring bin (18) which is vertically separated in a penetrating way, and the input pipe (19) and the output pipe (20) are respectively externally connected with a middle-rotating bin (16) and an outlet pipe (5);
the utility model discloses a flow valve seat, including outlet pipe (5), flow valve seat (6) in the combination be provided with flowmeter (30) and well logical post (32), flow valve seat (6) have air lock dish (8) for outlet pipe (5) one end intercommunication, and air lock dish (8) include twice reposition of redundant personnel pipeline, and one of them reposition of redundant personnel pipeline has external connection pipe (31) with well logical post (32) intercommunication, and communicates between well logical post (32) other end and the transfer storehouse (16) has back flow (7).
2. A ventilator oxygen concentration monitor as claimed in claim 1, wherein: the monitoring assembly comprises a lens assembly (10), a dumbbell (22), a magnetic column assembly (23), a reflecting mirror (24), magnetic poles (25) and a connecting rod (28), wherein the dumbbell (22) is fixed at two ends of the connecting rod (28), the reflecting mirror (24) is fixed at the middle of the connecting rod (28), one end of the magnetic column assembly (23) is vertically fixed with the connecting rod (28), the other end of the magnetic column assembly is connected with a control terminal (2), the magnetic poles (25) are fixed on the inner wall of a monitoring bin (18) and distributed at the upper end and the lower end of the dumbbell (22), one end of the lens assembly (10) transversely penetrates through the outside of the monitoring bin (18), the other end of the lens assembly is connected with the control terminal (2), an LED light source (26) and a photoelectric sensor (27) are arranged at the joint of the lens assembly (10) and the monitoring bin (18) in a position matching mode.
3. A ventilator oxygen concentration monitor as claimed in claim 1, wherein: a one-way plug (17) is embedded between the monitoring cylinder (9) and the first transfer valve (13), the one-way plug (17) is communicated with the inner cavity of the lower half part of the monitoring cylinder (9), and an outlet is formed outside the inner cavity of the upper half part of the monitoring cylinder (9).
4. A ventilator oxygen concentration monitor as claimed in claim 1, wherein: the outer end opening of the air supply tube seat (4) is provided with a clamping opening plug (11), and the concave side of the clamping opening plug (11) is led to a tube orifice structure.
5. A ventilator oxygen concentration monitor as claimed in claim 1, wherein: a disc-shaped pipe (12) is communicated between the air supply pipe seat (4) and the first transfer valve (13), a plurality of partition blades (29) are annularly stacked in the disc-shaped pipe (12), and the disc-shaped pipe (12) is communicated with the first transfer valve (13) through gaps of the partition blades (29).
6. A ventilator oxygen concentration monitor as claimed in claim 1, wherein: a blowing unit (15) is arranged between the output pipe (20) and the outlet pipe (5) in a penetrating way.
7. A ventilator oxygen concentration monitor as claimed in claim 1, wherein: the input pipe (19) and the output pipe (20) are electromagnetic valve pipes.
8. A ventilator oxygen concentration monitor as claimed in claim 1, wherein: the flowmeter (30) is a rotary blade flowmeter, and blades of the flowmeter (30) are rotationally connected with the middle through column (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410046064.9A CN117797373A (en) | 2024-01-12 | 2024-01-12 | Oxygen concentration monitor of breathing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410046064.9A CN117797373A (en) | 2024-01-12 | 2024-01-12 | Oxygen concentration monitor of breathing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117797373A true CN117797373A (en) | 2024-04-02 |
Family
ID=90421935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410046064.9A Pending CN117797373A (en) | 2024-01-12 | 2024-01-12 | Oxygen concentration monitor of breathing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117797373A (en) |
-
2024
- 2024-01-12 CN CN202410046064.9A patent/CN117797373A/en active Pending
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