CN220256909U - A calibrating mechanism and breathing machine for breathing machine - Google Patents
A calibrating mechanism and breathing machine for breathing machine Download PDFInfo
- Publication number
- CN220256909U CN220256909U CN202321565776.9U CN202321565776U CN220256909U CN 220256909 U CN220256909 U CN 220256909U CN 202321565776 U CN202321565776 U CN 202321565776U CN 220256909 U CN220256909 U CN 220256909U
- Authority
- CN
- China
- Prior art keywords
- air
- channel
- passage
- oxygen
- communicated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000029058 respiratory gaseous exchange Effects 0.000 title claims abstract description 25
- 239000001301 oxygen Substances 0.000 claims abstract description 87
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 87
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 29
- 238000001514 detection method Methods 0.000 claims abstract description 27
- 239000007789 gas Substances 0.000 claims description 24
- 238000007789 sealing Methods 0.000 claims description 3
- 230000003434 inspiratory effect Effects 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 description 11
- 238000009423 ventilation Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 208000004756 Respiratory Insufficiency Diseases 0.000 description 1
- 238000005399 mechanical ventilation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 201000004193 respiratory failure Diseases 0.000 description 1
Landscapes
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The utility model relates to the technical field of respirators, in particular to a calibration mechanism for a respirator and the respirator. A calibrating mechanism for a breathing machine comprises an oxygen branch, a one-way valve, an air-oxygen mixing device, a pressure detecting device and an air branch provided with a turbine fan, wherein an air-oxygen mixing bin and a mixed air-oxygen flow passage are arranged in the air-oxygen mixing device, one end of the air-oxygen mixing bin is respectively communicated with the air branch and the oxygen branch, and the other end of the air-oxygen mixing bin is communicated with the mixed air-oxygen flow passage; the mixed air-oxygen flow passage comprises a first air passage and a second air passage, one end of the first air passage is communicated with the air-oxygen mixing bin, and the other end of the first air passage can be communicated with the second air passage through a one-way valve; the pressure detection device is arranged in the second air channel, the air-oxygen mixing device is internally provided with an air resistance channel, one end of the air resistance channel is communicated with the first air channel, and the other end of the air resistance channel is communicated with the second air channel. Through this device, need not to set up pressure sensor at the check valve front end, alright calibrate turbo fan.
Description
Technical Field
The utility model relates to the technical field of respirators, in particular to a calibration mechanism for a respirator and the respirator.
Background
The breathing machine has very important clinical value for respiratory failure and clinical rescue treatment, wherein a turbine type electric control breathing machine is widely applied to the market, the working principle of the breathing machine is that air is mixed with oxygen after being filtered, the mixed gas is compressed into gas with certain pressure by a turbine fan and then enters a breathing valve along an airway, and the gas is controlled to flow out of an air suction port and finally reaches a patient end to provide mechanical ventilation for the patient. In order to ensure that the ventilation parameters to the patient side meet preset values during ventilation, the flow rate of the gas needs to be monitored by a flow sensor over the controlled gas path, and the patient side pressure is monitored at the patient inlet using a pressure sensor. To ensure that the patient ventilation parameters meet preset values, calibration of the turbo blower is critical to the overall ventilator apparatus.
When the pressure calibration is carried out on the turbine fan, a pressure sensor is arranged between the turbine fan and a one-way valve in an air passage at present, and a pressure sensor is arranged between the one-way valve and an inlet of a patient. When the turbine fan works and the pressure between the turbine fan and the one-way valve and the pressure between the exhalation valve and the one-way valve are different, the pressure of the turbine fan cannot be calibrated if a pressure sensor is not arranged between the turbine fan and the one-way valve. Although the electronic components bring great convenience to the medical field, the life safety of a patient may be affected when the accuracy of the electronic components is problematic, so that those skilled in the art will consider whether some unnecessary electronic components can be replaced by some mechanical structures.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: aiming at the problem that in the existing breathing machine, if a pressure sensor is not arranged between a turbine fan and a one-way valve, the pressure of the turbine fan cannot be calibrated, the calibrating mechanism for the breathing machine and the breathing machine are provided.
In order to solve the technical problems, on the one hand, the embodiment of the utility model provides a calibration mechanism for a breathing machine, which comprises an oxygen branch, a one-way valve, an air-oxygen mixing device, a pressure detection device and an air branch provided with a turbine fan, wherein an air-oxygen mixing bin and a mixed air-oxygen flow passage are arranged in the air-oxygen mixing device, one end of the air-oxygen mixing bin is respectively communicated with the air branch and the oxygen branch, and the other end of the air-oxygen mixing bin is communicated with the mixed air-oxygen flow passage; the air-oxygen mixing channel comprises a first air channel and a second air channel, one end of the first air channel is communicated with the air-oxygen mixing bin, and the other end of the first air channel can be communicated with the second air channel through the one-way valve; the pressure detection device is arranged in the second air channel, an air resistance channel is further arranged in the air-oxygen mixing device, one end of the air resistance channel is communicated with the first air channel, and the other end of the air resistance channel is communicated with the second air channel.
According to the calibrating mechanism for the breathing machine, the arrangement of the air resistance channel can enable the pressure in the first air channel to be consistent with the pressure in the second air channel, meanwhile, the air branch is communicated with the first air channel through the air-oxygen mixing bin, so that the pressure of the turbine fan in the air branch is consistent with the pressure in the second air channel, and the pressure of the turbine fan can be calibrated through the pressure detecting device arranged in the second air channel. Now to the calibration mode of turbo fan among the prior art, this device need not to set up pressure detection device between wheel fan and check valve alright realize the calibration, safer when using. Meanwhile, the pressure between the first air passage and the second air passage can be kept constant by the arrangement of the air resistance passage, so that vibration of the one-way valve caused by air pressure difference at two sides of the one-way valve can be reduced, and stable circulation of air flow can be ensured.
Optionally, the air-oxygen mixing device comprises a first connecting block and a second connecting block which are detachably connected, the first air channel is arranged in the first connecting block, and the second air channel is arranged in the second connecting block; the first connecting block is internally provided with a first air-stop flow passage communicated with the first air passage, the connecting block is internally provided with a second air-stop flow passage communicated with the second air passage, and the first air-stop flow passage can be communicated with the second air-stop flow passage and form the air-stop passage. The first connecting block and the second connecting block are detachably connected, and the processing of the air resistance channel is facilitated. It is obviously not easy if the first air passage and the second air passage are an integral part, and then a passage communicating the first air passage and the second air passage is formed on both sides of the check valve. The first air passage and the second air passage are arranged to be two spliced parts, and meanwhile, the first air resistance flow passage and the second air resistance flow passage are arranged on the first connecting block and the second connecting block, so that the processing difficulty of the air resistance passage can be reduced, and the production cost of the device can be reduced.
Optionally, the first air blocking channel comprises a first air blocking hole and a second air blocking hole, one end of the first air blocking hole is communicated with the first air channel, and the other end penetrates through the side surface of the first connecting block, which is far away from the first air channel; one end of the second air resistance hole is communicated with the first air resistance hole, and the other end of the second air resistance hole penetrates through the side surface of the first connecting block, which is close to the second connecting block; and one end of the first air resistance hole, which is far away from the first air passage, is provided with a sealing piece for preventing air leakage. The first gas resistance hole is processed into the through hole, so that the processing difficulty can be reduced, and the production cost of the device can be reduced.
Optionally, the axis of the first air resistance hole is perpendicular to the axis of the first air passage.
Optionally, the axis of the second air blocking hole is parallel to the axis of the first air channel.
Optionally, the aperture of the air resistance channel is 0.2 mm-0.7 mm. In the technical scheme, because the aperture of the air resistance channel is smaller, and meanwhile, the turbine fan has certain base pressure, the gas in the second air channel cannot be poured into the first air channel too much, so that the integral function of the device cannot be influenced. Preferably, the pore size of the air-blocking channel is 0.5mm.
Optionally, the air-oxygen mixing channel further comprises a third air channel, the third air channel is communicated between the air-oxygen mixing bin and the first air channel, and a flow detection device for detecting the flow of the air in the third air channel is arranged on the third air channel.
Optionally, a noise reduction device for avoiding noise is arranged in the air branch; an oxygen concentration detection device for detecting the oxygen concentration in the first gas channel is arranged in the first gas channel. In an embodiment, the noise reduction device includes a first noise reduction box disposed at a front end of the turbo fan and a second noise reduction box disposed at a rear end of the turbo fan, the oxygen concentration detection device is a sensor capable of detecting the oxygen concentration, and other detection devices in this example are corresponding sensors.
Optionally, the system further comprises a mechanical safety valve for ensuring the air pressure safety of the second air channel and an emergency air suction valve for ensuring the oxygen supply of the second air channel, wherein the mechanical safety valve and the emergency air suction valve are respectively communicated with the first air channel or the second air channel. In this embodiment, when the turbine fan end of the present device is problematic and cannot supply oxygen like a patient, an air-oxygen mixture is supplied to the patient through the emergency inhalation valve and the backup device or external environment in communication therewith. Meanwhile, when the pressure of the inhalation end of the patient is too high, the gas can be discharged through the mechanical safety valve.
In this embodiment, the air is mixed with oxygen in a certain proportion in the air-oxygen mixing bin under the driving of the turbine fan through noise reduction, and then enters the air suction end of the patient through the first air passage, the one-way valve and the second air passage. The pressure of the turbine fan is the same as the pressure in the second air channel through the arrangement of the air resistance channel, and the pressure of the turbine fan can be obtained through the pressure detection device in the second air channel, so that the calibration work of the turbine fan is completed. The device can realize calibration without arranging a pressure detection device between the wheel fan and the one-way valve, and is safer in use. Meanwhile, the pressure between the first air passage and the second air passage can be kept constant by the arrangement of the air resistance passage, so that vibration of the one-way valve caused by air pressure difference at two sides of the one-way valve can be reduced, and stable circulation of air flow can be ensured. Meanwhile, the pressure detection device can better enable the ventilation parameter to meet the preset value, and therefore comfort level of use of a patient can be improved.
On the other hand, the embodiment of the utility model provides a breathing machine, which comprises a breathing machine body and the calibrating mechanism for the breathing machine, wherein the calibrating mechanism is arranged at the air suction end of the breathing machine body.
Drawings
FIG. 1 is an exploded view of a calibration mechanism for a ventilator provided in accordance with one embodiment of the present utility model;
FIG. 2 is a schematic diagram of the overall structure of a calibration mechanism for a ventilator provided in one embodiment;
FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is an enlarged view of B in FIG. 3;
fig. 5 is a functional block diagram of a calibration mechanism for a ventilator provided by an embodiment.
Reference numerals in the specification are as follows:
1. an oxygen branch; 2. a one-way valve; 3. an air-oxygen mixing device; 4. a pressure detection device; 5. a turbine fan; 6. an air branch; 7. an air-oxygen mixing bin; 8. mixing an empty oxygen flow passage; 9. an air resistance channel; 10. a seal; 31. a first connection block; 32. a second connection block; 33. a third gas passage; 34. a flow rate detection device; 35. an oxygen concentration detection device; 36. a mechanical safety valve; 37 emergency suction valve; 38. a zero calibration valve; 61. a noise reduction device; 81. a first gas passage; 82. a second gas passage; 91. a first air resistance flow passage; 92. a second air resistance flow passage; 611. a first-stage noise reduction box; 612. a second-stage noise reduction box; 911. a first air resistance hole; 912. and a second air resistance hole.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects solved by the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
As shown in fig. 1 to 5, an embodiment of the present utility model provides a calibration mechanism for a breathing machine, which includes an oxygen branch 1, a check valve 2, an air-oxygen mixing device 3, a pressure detecting device 4, and an air branch 6 provided with a turbine fan 5, wherein an air-oxygen mixing chamber 7 and a mixed air-oxygen flow channel 8 are arranged in the air-oxygen mixing device 3, one end of the air-oxygen mixing chamber 7 is respectively communicated with the air branch 6 and the oxygen branch 1, and the other end is communicated with the mixed air-oxygen flow channel 8; the mixed air-oxygen flow passage 8 comprises a first air passage 81 and a second air passage 82, one end of the first air passage 81 is communicated with the air-oxygen mixing bin 7, and the other end of the first air passage 81 can be communicated with the second air passage 82 through the one-way valve 2; the pressure detection device 4 is arranged in the second air channel 82, the air-oxygen mixing device 3 is also provided with an air-resistance channel 9, one end of the air-resistance channel 9 is communicated with the first air channel 81, and the other end is communicated with the second air channel 82.
According to the calibrating mechanism for a breathing machine of the present embodiment, the air resistance channel 9 is configured to maintain the pressure in the first air channel 81 and the pressure in the second air channel 82 to be identical, and the air branch 6 is communicated with the first air channel 81 through the air-oxygen mixing chamber 7, so that the pressure of the turbo fan 5 in the air branch 6 and the pressure in the second air channel are also identical, and thus the pressure of the turbo fan 5 can be calibrated through the pressure detecting device 4 disposed in the second air channel. Now to the calibration mode of turbo fan 5 among the prior art, this device need not set up pressure detection device 4 between wheel fan and check valve 2 and can realize the calibration, safer when using. Meanwhile, the device can be arranged at the air suction end of the breathing machine, the pressure between the first air passage and the second air passage can be kept constant through the arrangement of the air resistance passage 9, so that the vibration of the one-way valve 2 caused by the air pressure difference at two sides of the one-way valve 2 can be reduced, and further, a user of the breathing machine can obtain an air-oxygen mixed air flow which circulates stably.
In one embodiment, the air-oxygen mixing device 3 includes a first connection block 31 and a second connection block 32 that are detachably connected, a first air channel 81 is disposed in the first connection block 31, and a second air channel 82 is disposed in the second connection block 32; the first connecting block 31 is provided with a first air-blocking flow passage 91 communicated with the first air passage 81, the connecting block is provided with a second air-blocking flow passage 92 communicated with the second air passage 82, and the first air-blocking flow passage 91 can be communicated with the second air-blocking flow passage 92 to form an air-blocking passage 9. The arrangement of the detachable connection of the first connection block 31 and the second connection block 32 facilitates the processing of the air-lock passage 9. It is obviously not easy if the first air passage 81 and the second air passage 82 are an integral part, and then a passage communicating the first air passage 81 and the second air passage 82 is formed on both sides of the check valve 2. The first air passage 81 and the second air passage 82 are arranged as two parts which can be spliced, and meanwhile, the first air resistance flow passage 91 and the second air resistance flow passage 92 are arranged on the first connecting block 31 and the second connecting block 32, so that the processing difficulty of the air resistance passage 9 can be reduced, and the production cost of the device can be reduced.
In one embodiment, the first air blocking channel 91 includes a first air blocking hole 911 and a second air blocking hole 912, one end of the first air blocking hole 911 is communicated with the first air channel 81, and the other end penetrates through the side surface of the first connecting block 31 away from the first air channel 81; one end of the second air resistance hole 912 is communicated with the first air resistance hole 911, and the other end penetrates through the side surface of the first connecting block 31, which is close to the second connecting block 32; the end of the first air blocking hole 911 remote from the first air passage 81 is provided with a sealing member 10 for preventing air leakage. Processing the first air resistance hole 911 into a through hole can reduce the processing difficulty, and is beneficial to reducing the production cost of the device.
In one embodiment, the axis of the first air resistance hole 911 is perpendicular to the axis of the first air passage 81.
In one embodiment, the axis of the second air blocking hole 912 is parallel to the axis of the first air passage 81.
In one embodiment, the aperture of the air-lock passage 9 is 0.2mm to 0.7mm. In this embodiment, the aperture of the air-lock passage 9 is 0.5mm. Because the aperture of the air resistance channel 9 is smaller, and meanwhile, the turbine fan 5 has certain base pressure, the air in the second air channel cannot be poured into the first air channel too much, so that the overall function of the device cannot be affected. Simultaneously, by taking the action of the one-way valve 2, the turbo fan 5 and the calibration mechanism are arranged at the air suction end of the breathing machine, so that air-oxygen mixed gas can enter the patient through the one-way valve 2, and gas exhaled by the patient cannot enter the first air passage or the turbo fan 5 through the one-way valve 2.
In an embodiment, the mixed air-oxygen flow passage 8 further includes a third air passage 33, the third air passage 33 is communicated between the air-oxygen mixing chamber 7 and the first air passage 81, and a flow detection device 34 for detecting the flow of the air in the third air passage 33 is disposed on the third air passage 33, and in this embodiment, the flow detection device 34 is a flow detector.
In an embodiment, noise reduction means 61 for avoiding noise are provided in the air branch 6; the first gas passage 81 is provided therein with an oxygen concentration detection means 35 for detecting the concentration of oxygen in the first gas passage 81. In the embodiment, the noise reduction device 61 includes a first noise reduction box 611 disposed at the front end of the turbo fan 5 and a second noise reduction box 612 disposed at the rear end of the turbo fan 5, and the oxygen concentration detection device 35 is a sensor capable of detecting the oxygen concentration, and other detection devices in this example are corresponding sensors.
In an embodiment, the device further comprises a mechanical safety valve 36 for ensuring the safety of the air pressure of the second air channel 82 and an emergency air suction valve 37 for ensuring the oxygen supply of the second air channel 82, wherein the mechanical safety valve 36 and the emergency air suction valve 37 are respectively communicated with the first air channel 81. In this embodiment, when the turbine fan 5 end of the present device is problematic and cannot supply oxygen like a patient, air or an air-oxygen mixture is supplied to the patient through the emergency inhalation valve 37 and the standby device or external environment communicating therewith. Meanwhile, when the pressure at the patient's inspiratory side is excessive, gas may be vented through the mechanical safety valve 36. In addition, a zeroing valve 38 and a temperature sensor are provided in the present device.
The air is mixed with oxygen in a certain proportion in an air-oxygen mixing bin 7 through noise reduction under the drive of a turbine fan 5, and then enters the air suction end of a patient through a first air passage, a one-way valve 2 and a second air passage. The pressure of the turbine fan 5 is the same as the pressure in the second air channel due to the arrangement of the air resistance channel 9, and the pressure of the turbine fan 5 can be obtained through the pressure detection device 4 in the second air channel, so that the calibration work of the turbine fan 5 is completed. The device can realize calibration without arranging a pressure detection device 4 between the wheel fan and the one-way valve 2, and is safer in use. Meanwhile, the pressure between the first air passage and the second air passage can be kept constant by the arrangement of the air resistance passage 9, so that vibration of the one-way valve 2 caused by air pressure difference at two sides of the one-way valve 2 can be reduced, and stable circulation of air flow can be ensured. Meanwhile, the pressure detection device 4 can better enable the ventilation parameter to meet the preset value, and therefore comfort level of use of a patient can be improved.
In addition, an embodiment of the utility model provides a ventilator, which comprises a ventilator body and the calibration mechanism for the ventilator, wherein the calibration mechanism is arranged at the air suction end of the ventilator body.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (10)
1. The calibrating mechanism for the breathing machine is characterized by comprising an oxygen branch (1), a one-way valve (2), an air-oxygen mixing device (3), a pressure detecting device (4) and an air branch (6) provided with a turbine fan (5), wherein an air-oxygen mixing bin (7) and a mixed air-oxygen flow channel (8) are arranged in the air-oxygen mixing device (3), one end of the air-oxygen mixing bin (7) is respectively communicated with the air branch (6) and the oxygen branch (1), and the other end of the air-oxygen mixing bin is communicated with the mixed air-oxygen flow channel (8);
the mixed air-oxygen flow passage (8) comprises a first air passage (81) and a second air passage (82), one end of the first air passage (81) is communicated with the air-oxygen mixing bin (7), and the other end of the first air passage can be communicated with the second air passage (82) through the one-way valve (2);
the pressure detection device (4) is arranged in the second air channel (82), an air resistance channel (9) is further arranged in the air-oxygen mixing device (3), one end of the air resistance channel (9) is communicated with the first air channel (81), and the other end of the air resistance channel is communicated with the second air channel (82).
2. The calibration mechanism for a ventilator according to claim 1, wherein the air-oxygen mixing device (3) comprises a first connection block (31) and a second connection block (32) detachably connected, the first air passage (81) being provided in the first connection block (31), the second air passage (82) being provided in the second connection block (32); the first connecting block (31) is internally provided with a first air resistance flow passage (91) communicated with the first air passage (81), the connecting block is internally provided with a second air resistance flow passage (92) communicated with the second air passage (82), and the first air resistance flow passage (91) can be communicated with the second air resistance flow passage (92) and form the air resistance passage (9).
3. The calibration mechanism for a ventilator according to claim 2, wherein the first air-blocking flow channel (91) comprises a first air-blocking hole (911) and a second air-blocking hole (912), one end of the first air-blocking hole (911) is communicated with the first air channel (81), and the other end penetrates through the side surface of the first connecting block (31) away from the first air channel (81); one end of the second air resistance hole (912) is communicated with the first air resistance hole (911), and the other end penetrates through the side surface of the first connecting block (31) close to the second connecting block (32); one end of the first air resistance hole (911) far away from the first air passage (81) is provided with a sealing piece (10) for preventing air leakage.
4. A calibration mechanism for a ventilator according to claim 3, characterized in that the axis of the first air-lock hole (911) is perpendicular to the axis of the first air channel (81).
5. A calibration mechanism for a ventilator according to claim 3, characterized in that the axis of the second air-lock hole (912) is parallel to the axis of the first air channel (81).
6. Calibration mechanism for a ventilator according to claim 1, characterized in that the aperture of the air-lock channel (9) is 0.2 mm-0.7 mm.
7. The calibration mechanism for a breathing machine according to claim 1, wherein the mixed air-oxygen flow channel (8) further comprises a third air channel (33), the third air channel (33) is communicated between the air-oxygen mixing bin (7) and the first air channel (81), and a flow detection device (34) for detecting the flow of air in the third air channel (33) is arranged on the third air channel (33).
8. Calibration mechanism for a ventilator according to claim 1, characterized in that noise reduction means (61) for avoiding noise are provided in the air branch (6); an oxygen concentration detection device (35) for detecting the oxygen concentration in the first gas passage (81) is arranged in the first gas passage (81).
9. The calibration mechanism for a ventilator according to claim 1, further comprising a mechanical safety valve (36) for ensuring the pneumatic safety of the second gas channel (82) and an emergency inhalation valve (37) for ensuring the oxygen supply of the second gas channel (82), the mechanical safety valve (36) and the emergency inhalation valve (37) being in communication with the first gas channel (81) or the second gas channel (82), respectively.
10. A ventilator comprising a ventilator body and the calibration mechanism for a ventilator of any of claims 1-9, the calibration mechanism being mounted at the inspiratory end of the ventilator body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321565776.9U CN220256909U (en) | 2023-06-19 | 2023-06-19 | A calibrating mechanism and breathing machine for breathing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321565776.9U CN220256909U (en) | 2023-06-19 | 2023-06-19 | A calibrating mechanism and breathing machine for breathing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220256909U true CN220256909U (en) | 2023-12-29 |
Family
ID=89303348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321565776.9U Active CN220256909U (en) | 2023-06-19 | 2023-06-19 | A calibrating mechanism and breathing machine for breathing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220256909U (en) |
-
2023
- 2023-06-19 CN CN202321565776.9U patent/CN220256909U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7509957B2 (en) | Hardware configuration for pressure driver | |
| US4188946A (en) | Controllable partial rebreathing anesthesia circuit and respiratory assist device | |
| US7992555B2 (en) | Anesthesia ventilator system including manual ventilation | |
| US11904098B2 (en) | Additive gas delivery apparatus with backup | |
| JP5860703B2 (en) | Automatic oxygen carrying system | |
| US20170232222A1 (en) | Vent system for cpap patient interface used in treatment of sleep disordered breathing | |
| AU689371B2 (en) | A pneumatic system for a ventilator | |
| EP3815729A1 (en) | Anesthesia machine and system | |
| CN108883245B (en) | System and method for preventing cross-contamination in a stream generation system | |
| CN104014062B (en) | Oxygen inhalation instrument | |
| CN112156297A (en) | Ventilation treatment equipment and control method | |
| KR101856869B1 (en) | Electronic Manual Resucitator equipped with air flow controller functions | |
| US20140254305A1 (en) | Auto-controlled air-oxygen blender | |
| CN220256909U (en) | A calibrating mechanism and breathing machine for breathing machine | |
| CN110740774A (en) | Nasal patient interface device, breathing apparatus and method for operating a breathing apparatus | |
| CN114796760A (en) | Breathing machine calibration equipment and calibration system thereof | |
| EP4228727A1 (en) | Cpap kit to support breathing | |
| JP2022128370A (en) | Leakage test closing plug, anesthesia apparatus, and leakage test method for circulation type respiration circuit | |
| CN221181271U (en) | Breathing machine system and breathing machine | |
| JP5437401B2 (en) | Artificial respiration system | |
| CN220002634U (en) | Breathing machine system and breathing machine | |
| CN219700761U (en) | External breather valve and breathing machine that breathing machine was used | |
| CN218979320U (en) | Animal ventilation device | |
| US20230181864A1 (en) | Arrangement and process for supplying a patient-side coupling unit with a gas mixture | |
| CN204017057U (en) | Oxygen inhalation instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 518000, Building 1, 101, Evergrande Fashion Huigu Building, Fulong Road, Shanghenglang Community, Dalang Street, Longhua District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Security Medical Technology Co.,Ltd. Country or region after: China Address before: A1302, Shenzhen national engineering laboratory building, No.20, Gaoxin South 7th Road, high tech Zone community, Yuehai street, Nanshan District, Shenzhen, Guangdong 518000 Patentee before: Shenzhen Security Medical Technology Co.,Ltd. Country or region before: China |
|
| CP03 | Change of name, title or address |