CN112135654A - Oxygen sensor connection structure, ventilation apparatus, and ventilation system - Google Patents
Oxygen sensor connection structure, ventilation apparatus, and ventilation system Download PDFInfo
- Publication number
- CN112135654A CN112135654A CN201880093640.8A CN201880093640A CN112135654A CN 112135654 A CN112135654 A CN 112135654A CN 201880093640 A CN201880093640 A CN 201880093640A CN 112135654 A CN112135654 A CN 112135654A
- Authority
- CN
- China
- Prior art keywords
- oxygen sensor
- sensor
- ventilator
- oxygen
- housing
- 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.)
- Granted
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
Landscapes
- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Emergency Medicine (AREA)
- Hematology (AREA)
- Pulmonology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
An oxygen sensor connecting structure, a ventilation device (5) and a ventilation system are provided, the oxygen sensor connecting structure comprises at least one sensor switching component (1), the sensor switching component (1) is matched with an oxygen sensor mounting structure of the ventilation device (5), and the sensor switching component (1) is detachably connected with an oxygen sensor (2); after at least one oxygen sensor (2) is connected to the shell of the ventilation equipment (5) through the sensor adapter part (1), the air path interface (211) of the oxygen sensor (2) is communicated with the air suction branch (16) of the ventilation equipment (5).
Description
The present disclosure relates to the technical field of medical devices, and for example, to an oxygen sensor connection structure, a ventilation device, and a ventilation system.
The oxygen sensor is an important component of the ventilator, which monitors the oxygen concentration value in the gas mixture delivered to the patient via the oxygen sensor. The oxygen sensor can be, for example, a chemical oxygen battery or a paramagnetic oxygen sensor, the chemical oxygen battery is widely used and has low cost, but the chemical oxygen battery consumes an internal lead level in the measurement process, has a service life of one to two years and needs to be replaced regularly, and if the service life of the chemical oxygen battery exceeds the service life and is not replaced regularly, the oxygen concentration value monitoring is inaccurate, the use safety of the breathing machine is seriously affected, and the risk is brought to a patient. The paramagnetic oxygen sensor utilizes pure physical characteristics of oxygen, basically has no loss in the measurement process, has long service life, is free from replacement in the life cycle of the breathing machine, can not cause inaccurate precision even after long-term use, and has higher use safety and reliability.
The installation interfaces of different types of oxygen sensors have great difference, and in the related art, only one type of sensor can be configured when the respirator is used, and the installation interface of the respirator cannot be compatible with different types of oxygen sensors. In addition, the oxygen sensor is generally disposed inside the ventilator, which causes inconvenience in replacement and maintenance of the oxygen sensor.
Disclosure of Invention
The utility model provides an oxygen sensor connection structure, ventilation equipment and ventilation system when realizing that oxygen sensor convection inhales the oxygen concentration collection of gas in the branch road through ventilation equipment for on different kinds of oxygen sensor can be connected to ventilation equipment's shell through sensor switching part, ventilation equipment can the compatible different grade type oxygen sensor, and need not to demolish ventilation equipment's shell and can realize change and the maintenance to the oxygen sensor who is connected to ventilation equipment.
The present disclosure provides an oxygen sensor connecting structure for connecting at least one oxygen sensor to a housing of a ventilator, comprising:
the sensor adapter component is matched with an oxygen sensor mounting structure of the ventilation equipment, and is detachably connected with the oxygen sensor;
when at least one oxygen sensor is connected to the shell of the ventilation equipment through the sensor adapter component, the air path interface of the oxygen sensor is communicated with the air suction branch of the ventilation equipment.
In one embodiment, the oxygen sensor connecting structure further includes:
a first sensor type identification unit, the oxygen sensor connection structure identifying the type of the connected oxygen sensor according to the first sensor type identification unit.
In one embodiment, the type of attached oxygen sensor is a paramagnetic oxygen sensor or a chemical oxygen sensor.
In one embodiment, the oxygen sensor connecting structure further includes:
and the air path adapter part is arranged to connect the air path interface of the oxygen sensor and the air suction branch of the ventilation equipment.
In one embodiment, the oxygen sensor connecting structure further includes:
and the oxygen sensor connecting structure forwards the oxygen concentration detection value of the oxygen sensor to the ventilation equipment through the electric signal switching unit.
The invention also provides a ventilation device which is detachably connected with the oxygen sensor connecting structure and comprises a shell, an air source interface arranged on the shell, an air suction branch, an air expiration branch and a control unit, wherein the air suction branch, the air expiration branch and the control unit are packaged in the shell;
when at least one oxygen sensor is connected to the shell of the ventilation equipment through the sensor adapter component, the air path interface of the oxygen sensor is communicated with the air suction branch of the ventilation equipment.
In an embodiment, the ventilator further comprises:
a second oxygen sensor type identification unit by which the ventilator identifies the type of the oxygen sensor connected to the ventilator housing.
In one embodiment, the oxygen sensor coupled to the ventilator housing is of the type a paramagnetic oxygen sensor or a chemical oxygen sensor.
In an embodiment, the ventilator further comprises:
a transceiver unit through which the ventilator receives an oxygen concentration detection value of the oxygen sensor.
In an embodiment, the ventilator further comprises:
and the gas path sampling outlet is arranged on the shell and is arranged as a gas path switching component which is connected with the air suction branch and the oxygen sensor or the oxygen sensor connecting structure.
In an embodiment, the ventilator is a ventilator or an anesthesia machine.
The present disclosure also provides a ventilation system comprising at least one oxygen sensor, the above oxygen sensor connection structure, and the above ventilation apparatus, the at least one oxygen sensor being detachably connected to the housing of the ventilation apparatus through the oxygen sensor connection structure.
In one embodiment, the oxygen sensor is a paramagnetic oxygen sensor or a chemical oxygen sensor.
The invention provides an oxygen sensor connecting structure, a ventilation device and a ventilation system, wherein at least one oxygen sensor can be connected to a shell of the ventilation device by arranging the oxygen sensor connecting structure, the oxygen sensor comprises at least one sensor switching component, the sensor switching component is matched with an oxygen sensor mounting structure of the ventilation device, the sensor switching component is detachably connected with the oxygen sensor, when the at least one oxygen sensor is connected to the shell of the ventilation device through the sensor switching component, an air path interface of the oxygen sensor can be communicated with an air suction branch of the ventilation device, when the oxygen sensor collects the oxygen concentration of gas flowing through the air suction branch of the ventilation device, different types of oxygen sensors can be connected to the shell of the ventilation device through the sensor switching component by utilizing the sensor switching component, and the problem that the ventilation device cannot be compatible with various oxygen sensors is solved, replacement and maintenance of the oxygen sensor connected to the ventilator can be accomplished without removing the housing of the ventilator.
Fig. 1 is a schematic structural diagram of an aeration apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic internal view of an aeration apparatus according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a sensor adapter component according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another sensor adapter component according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a circuit for identifying a type of an oxygen sensor according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of another oxygen sensor type identification circuit according to an embodiment of the present invention;
FIG. 7 is a schematic view of an alternative mounting structure of an oxygen sensor attachment structure according to an embodiment of the present invention;
FIG. 8 is a schematic view of an alternative mounting structure of an oxygen sensor attachment structure according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of another oxygen sensor type identification circuit according to an embodiment of the present invention;
FIG. 10 is a schematic diagram of another oxygen sensor type identification circuit according to an embodiment of the present invention;
FIG. 11 is a schematic diagram of another oxygen sensor type identification circuit according to an embodiment of the present invention; and
fig. 12 is a schematic diagram of another oxygen sensor type identification circuit structure according to an embodiment of the present invention.
Fig. 1 is a schematic structural diagram of a ventilator provided in an embodiment of the present invention, fig. 2 is a schematic internal diagram of a ventilator provided in an embodiment of the present invention, fig. 3 is a schematic structural diagram of a sensor adapter component provided in an embodiment of the present invention, and fig. 4 is a schematic structural diagram of another sensor adapter component provided in an embodiment of the present invention. With reference to fig. 1 to 4, the oxygen sensor connection structure includes at least one sensor adapter member 1, the sensor adapter member 1 is engaged with the oxygen sensor mounting structure of the ventilator 5, the sensor adapter member 1 is detachably connected to the oxygen sensor 2, and the oxygen sensor connection structure is capable of connecting the at least one oxygen sensor 2 to the housing 51 of the ventilator 5.
With reference to fig. 1-4, it may be provided that the oxygen sensor attachment structure comprises a sensor adapter member 1, the sensor adapter member 1 being adapted to mate with an oxygen sensor mounting structure at ventilator site a, for example, the sensor attachment member 1 may be secured to the ventilator 5 at site a by means of mounting structure S1 using screws.
The ventilation device 5 comprises a housing 51, an air source interface 18 arranged on the housing 51, and an inhalation branch 16, an exhalation branch 19 and a control unit 17 which are enclosed in the housing. The air supply interface 18 is in communication with the inspiratory limb 16, and the inspiratory limb 16 and expiratory limb 19 are in communication with the nose and mouth of the patient via patient lines. When the patient inhales, the gas introduced from the gas source interface 18 is transmitted to the mouth and nose of the patient through the inhaling branch 16; when the patient exhales, the exhaled gas is exhausted through the exhalation limb 19. The control unit 17 can control the opening and closing of the inspiration branch 16 and the expiration branch 19 respectively, so as to ensure the normal use of the ventilation device 5.
The sensor adapter part 1 is detachably provided with the chemical oxygen sensor 21 or the paramagnetic oxygen sensor 22, the two types of oxygen sensors 2 are different from the sensor adapter part 1 in mounting structure, for example, the chemical oxygen sensor 21 can be arranged on the sensor adapter part 1 in a threaded manner, namely, the chemical oxygen sensor 21 and the sensor adapter part 1 are fixedly mounted through mounting structures S2 and S3, the paramagnetic oxygen sensor 22 can be installed on the sensor adapter part 1 in a pluggable manner, namely, the paramagnetic oxygen sensor 22 and the sensor adapter part 1 are fixedly mounted through mounting structures S4 and S5.
Fig. 3 is a schematic structural diagram of a sensor adapter component in which a chemical oxygen sensor 21 is installed on the sensor adapter component 1 in a threaded manner according to an embodiment of the present invention, and fig. 4 is a schematic structural diagram of a sensor adapter component in which a paramagnetic oxygen sensor 22 is installed on the sensor adapter component 1 in a pluggable manner according to an embodiment of the present invention. In an embodiment, the chemical oxygen sensor 21 and the paramagnetic oxygen sensor 22 may be mounted on the sensor adapter component 1 in other manners, and the mounting manners between the different oxygen sensors 2 and the sensor adapter component 1 may be set according to requirements. Similarly, the embodiment of the present invention does not limit the mounting manner of the sensor adapter member 1 to the ventilator 5. In this way, the sensor adapter component 1 is utilized to enable different types of oxygen sensors 2 to be connected to the housing 51 of the ventilator 5 through the sensor adapter component 1, thereby solving the problem that the ventilator 5 is not compatible with multiple types of oxygen sensors 2.
With reference to fig. 1 to 4, the oxygen sensor 2 can be connected to the housing 51 of the ventilator 5 by means of the sensor adapter part 1, i.e. the oxygen sensor 2 can be connected to the region of the space of the ventilator 5 outside the interior in which the inspiration limb 16 is arranged by means of the sensor adapter part 1, since different types of oxygen sensors 2 can be connected to the housing 51 of the ventilator by means of the sensor adapter part 1, replacement and maintenance of the oxygen sensor 2 connected to the ventilator 5 can be carried out without having to remove the housing 51 of the ventilator 5.
Referring to fig. 1 to 4, the ventilator 1 may further include a mounting door 20, and one side where the mounting door 20 is provided is hinge-provided to the body 112 of the housing 51. When the oxygen sensor 2 needs to be replaced and maintained, only the installation door 20 needs to be opened, and the oxygen sensor is simple and convenient. Of course, a locking structure such as a latch, a screw, etc. may be provided between the mounting door 20 and the body 112 of the housing 51, so that the mounting door 20 can be locked on the body 112 after being closed. In this context, the housing 51 of the venting device refers to the part of the housing that needs to be disassembled with tools by a service person. In other embodiments, the mounting door 20 may be replaced with other shielding structures for cooperating with the housing 51 to cooperatively receive the oxygen sensor 2. In other embodiments, it is also possible that only the body 112 is provided with the mounting groove 113, and the oxygen sensor 2 is entirely or partially accommodated in the mounting groove 113. In other embodiments, it is also possible to simply dispose the oxygen sensor 2 on the outer surface of the body 112, and the installation door 20 is not additionally disposed, so as to facilitate the installation of the oxygen sensor 2; it is also possible to directly mount the oxygen sensor 2 outside the housing 51 without providing the mounting groove 113 and the mounting door 20.
With reference to fig. 1 to 4, after at least one oxygen sensor 2 is connected to the ventilator 5 through the sensor adapter component 1, the air path interface 211 of the oxygen sensor 2 may communicate with the inhalation branch 16 of the ventilator 5. In an embodiment, the oxygen sensor connection structure may further include an air passage adapter component 161 connecting the air passage interface 211 of the oxygen sensor 2 and the inhalation branch 16 of the ventilator device 5. The air path interface 211 of the oxygen sensor 2 is communicated with the air suction branch 16 of the ventilation device 5 through the air path adapter part 161, and the oxygen sensor 2 detects the oxygen concentration of the gas in the air suction branch 16.
In an embodiment, the oxygen sensor connection structure may further include a first sensor type identification unit identifying a type of the connected oxygen sensor. In an embodiment, the type of the oxygen sensor connected to the ventilator may be a paramagnetic oxygen sensor or a chemical oxygen sensor, i.e., the oxygen sensor connection structure may be provided with a first sensor type identification unit to determine whether the oxygen sensor connected to the ventilator is a paramagnetic oxygen sensor or a chemical oxygen sensor.
In one embodiment, the first sensor type identification unit may be provided as a short set of electrical contacts comprising two electrical contacts shorted together. Fig. 5 is a schematic diagram of a structure of an oxygen sensor type identification circuit according to an embodiment of the present invention. With reference to fig. 1 to 5, when the sensor adaptor part 1 is connected to the housing 51 of the ventilator 5, the shorting electrical contact group 3 may communicate with two electrically insulated detection electrical contacts D1 provided on the ventilator 5 corresponding to the shorting electrical contact group 3, and the ventilator 5 determines the type of the oxygen sensor 2 attached to the ventilator 5 according to whether the corresponding two detection electrical contacts D1 communicate.
With reference to fig. 1 to 5, when the oxygen sensor connection structure includes one sensor adapting component 1, the short-circuit electrical contact group 3 may be disposed on the oxygen sensor 2, for example, one of the chemical oxygen sensor 21 and the paramagnetic oxygen sensor 22 may be disposed with the short-circuit electrical contact group 3, for example, the chemical oxygen sensor 21 is disposed with the short-circuit electrical contact group 3, the paramagnetic oxygen sensor 22 is not disposed with the short-circuit electrical contact group 3, the ventilator 5 is disposed with the detection electrical contact group 4, and the detection electrical contact group 4 includes two detection electrical contacts D1 that are electrically insulated. The type of the connected oxygen sensor 2 is distinguished by the different voltage difference between the two electrical contacts B1 in the shorting electrical contact set 3, for example, when the ventilator 5 detects that the voltage difference between the two detection electrical contacts D1 is low, the connected oxygen sensor 2 is determined to be a chemical oxygen sensor 21, and when the ventilator 5 detects that the voltage difference between the two detection electrical contacts D1 is high, the connected oxygen sensor 2 is determined to be a paramagnetic oxygen sensor 22. Certainly, the short-circuit electrical contact group 3 and the detection electrical contact group 4 may both include an electrical contact, when the two electrical contacts in the short-circuit electrical contact group 3 and the detection electrical contact group 4 are connected and disconnected, voltages on the electrical contacts are different, and the ventilation device 5 may also determine the type of the oxygen sensor 2 by detecting the voltages of the electrical contacts.
In one embodiment, when replacing the oxygen sensor 2 connected to the housing 51 of the ventilator 5, the replacement of the oxygen sensor 2 can be completed only by detaching the oxygen sensor 2 on the sensor adapter member 1 without replacing the sensor adapter member 1. When the oxygen sensor 2 is attached to the ventilator 5 via the sensor relay member 1, if the ventilator 5 detects a short circuit between the two detection electrical contacts D1, the ventilator 5 may determine that the oxygen sensor 2 attached to the ventilator 5 via the sensor relay member 1 is the chemical oxygen sensor 21; if the ventilator 5 detects that the two detection electrical contacts D1 are in the open state, the ventilator 5 can determine that the oxygen sensor 2 attached to the ventilator by the sensor adapter part 1 is the paramagnetic oxygen sensor 22. Therefore, the electrical interface of the ventilation device 5 can be compatible with detection of different types of oxygen sensors 2, and the problem that the difficulty of type detection of different types of oxygen sensors 2 by the ventilation device due to replacement of a circuit board in the ventilation device 5 is high is solved.
Fig. 6 is a schematic diagram of another oxygen sensor type identification circuit structure according to an embodiment of the present invention. With reference to fig. 1 to 4 and 6, the oxygen sensor connection structure includes a sensor adapter 1, and also can set up all to be provided with short circuit electrical contact group 3 on chemical oxygen sensor 21 and paramagnetic oxygen sensor 22, and the position that sets up short circuit electrical contact group 3 on two kinds of oxygen sensors 2 is different, sets up two sets of detection electrical contact groups 4 on the aeration equipment 5, and every detection electrical contact group 4 of group includes two detection electrical contacts D1 of electrical insulation. It may be provided that when the chemical oxygen sensor 21 is mounted to the housing 51 of the ventilator 5 by the sensor adapter member 1, the two shorted electrical contacts B1 of the set of shorted electrical contacts 31 on the chemical oxygen sensor 21 are electrically connectable to the two sensing electrical contacts D1 of the set of sensing electrical contacts 41 on the ventilator 5, respectively. When the paramagnetic oxygen sensor 22 is mounted to the ventilator 5 by the sensor relay component 1, the shorted two electrical contacts B1 of the set of shorted electrical contacts 32 on the paramagnetic oxygen sensor 22 can be electrically connected with the two detection electrical contacts D1 of the set of detection electrical contacts 42 on the ventilator 5, respectively.
When the oxygen sensor 2 is connected to the housing 51 of the ventilator 5 through the sensor adapter 1, if the ventilator 5 detects that the two detection electrical contacts D1 in the detection electrical contact group 41 are short-circuited and the two detection electrical contacts D1 in the detection electrical contact group 42 are in an open state, the ventilator 5 determines that the oxygen sensor 2 connected to the housing 51 of the ventilator 5 through the sensor adapter 1 is the chemical oxygen sensor 21; if the ventilator 5 detects that the two detection electrical contacts D1 in the detection electrical contact group 42 are short-circuited, the two detection electrical contacts D1 in the detection electrical contact group 41 are in an off state, the ventilator 5 determines that the oxygen sensor 2 connected to the housing 51 of the ventilator 5 through the sensor adapter part 1 is the paramagnetic oxygen sensor 22, and the ventilator 5 can determine the type of the oxygen sensor 2 mounted to the ventilator 5 through the sensor adapter part 1 by detecting which of the two detection electrical contacts D1 in the detection electrical contact group 4 is connected, so that the electrical interface of the ventilator 5 can be compatible with the detection of the types of the different types of sensors 2, and the problem that the difficulty in type detection of the different types of oxygen sensors 2 by the ventilator 5 due to the replacement of a circuit board in the ventilator 5 is high is avoided.
Fig. 7 is a schematic view of a mounting structure of another oxygen sensor connection structure provided in an embodiment of the present invention, and fig. 8 is a schematic view of a mounting structure of another oxygen sensor connection structure provided in an embodiment of the present invention. With reference to fig. 1, 2, 7 and 8, the oxygen sensor connection structure may include two sensor adapter members 1, the two sensor adapter members 1 may be detachably connected to a chemical oxygen sensor 21 and a paramagnetic oxygen sensor 22, the two sensor adapter members 1 shown in fig. 7 and 8 may be connected to the housing 51 of the ventilation apparatus 5 through the same mounting structure S1, and the chemical oxygen sensor 21 is installed on the sensor adapter member 11 by screwing, that is, the chemical oxygen sensor 21 and the sensor adapter member 11 are fixedly installed through the mounting structures S2 and S3. The paramagnetic oxygen sensor 22 is pluggable to the sensor adaptor component 12, that is, the paramagnetic oxygen sensor 22 and the sensor adaptor component 12 are fixedly installed through the installation structures S4 and S5.
When the oxygen sensor 2 in the ventilation device 5 needs to be replaced, the sensor adapter part 1 and the oxygen sensor 2 installed on the sensor adapter part 1 can be replaced at the same time, the oxygen sensor 2 collects the oxygen concentration of gas in the air suction branch 16 of the ventilation device 5, meanwhile, the sensor adapter part 1 is utilized to enable different types of oxygen sensors 2 to be connected to the shell 51 of the ventilation device 5 through the sensor adapter part 1, and the problem that the ventilation device 5 is not compatible with multiple types of oxygen sensors 2 is solved. The different types of oxygen sensors 2 can be connected to the housing 51 of the ventilator 5 through the sensor adapter part 1, replacement and maintenance of the oxygen sensors 2 connected to the ventilator 5 can be achieved without removing the housing 51 of the ventilator 5, and a user can replace the oxygen sensors by himself.
In one embodiment, the first sensor type identification unit of the oxygen sensor connection structure may be provided as a shorting electrical contact group including two electrical contacts shorted together. Fig. 9 is a schematic diagram of another oxygen sensor type identification circuit structure according to an embodiment of the present invention. Referring to fig. 1 and 7 to 9, when the oxygen sensor 2 is connected to the housing 51 of the ventilator 5 by the sensor adaptor member 1, the shorting electrical contact group 3 can communicate with two electrically insulated detection electrical contacts D1 provided on the ventilator 5 corresponding to the shorting electrical contact group 3, and the ventilator 5 determines the type of the oxygen sensor 2 attached to the ventilator 5 based on whether or not the corresponding two detection electrical contacts D1 communicate.
With reference to fig. 1 and fig. 7 to 9, when the oxygen sensor connection structure includes two sensor adapter members 1, the oxygen sensor 2 and the corresponding sensor adapter member 1 form an adapter assembly 10, a short-circuit electrical contact group 3 may be disposed on the adapter assembly 10 formed by the chemical oxygen sensor 21 and the corresponding sensor adapter member 11, the short-circuit electrical contact group 3 is not disposed on the adapter assembly 10 formed by the paramagnetic oxygen sensor 22 and the corresponding sensor adapter member 12, the ventilator 5 may determine the type of the connected oxygen sensor 2 according to whether the two corresponding detection electrical contacts D1 are connected, the determination process is similar to the process of implementing the type detection of the oxygen sensor 2 by the oxygen sensor type identification circuit having the structure shown in fig. 5, and details thereof are not repeated.
Fig. 10 is a schematic diagram of another oxygen sensor type identification circuit structure according to an embodiment of the present invention. With reference to fig. 1, 7, 8 and 10, when the oxygen sensor connection structure includes two sensor adapter parts 1, the connection assembly 10 composed of the chemical oxygen sensor 21 and the corresponding sensor adapter part 1 and the connection assembly 10 composed of the paramagnetic oxygen sensor 22 and the corresponding sensor adapter part 1 may be provided with the short electrical contact group 3, the positions of the short electrical contact groups 3 on the two connection assemblies 10 are different, and the ventilation device 5 is provided with two sets of detection electrical contact groups 4. The determination process is similar to the process of implementing the type detection of the oxygen sensor 2 by the oxygen sensor type identification circuit having the structure shown in fig. 6, and is not described again here.
The shorting contact group 3 is disposed on a switching assembly 10 formed by the oxygen sensor 2 and the corresponding sensor switching component 1, the shorting contact group 3 may be disposed on the oxygen sensor 2 in the switching assembly 10, or the shorting contact group 3 may be disposed on the sensor switching component 1 in the switching assembly 10.
Fig. 11 is a schematic diagram of another oxygen sensor type identification circuit structure according to an embodiment of the present invention. With reference to fig. 1 and 11, it may be provided that the set of sensing electrical contacts 4 on the ventilator 5 comprises a first sensing electrical contact D11 and a second sensing electrical contact D12 that are electrically insulated, the sensing signal input H1 of the ventilator 5 is electrically connected to the corresponding first sensing electrical contact D11, and the sensing signal input H1 is connected to a first power signal VCC through an impedance element R, and the second sensing electrical contact D12 is connected to a second power signal, for example, a ground signal GND, which has different levels. When the oxygen sensor or the sensor adapting component 1 provided with the short-circuit electric contact group 3 is connected to the ventilation equipment 5, the two short-circuit electric contacts B1 in the short-circuit electric contact group 3 communicate the two detection electric contacts D1 in the detection electric contact group 4, and the detection signal input end H1 receives low level. When the oxygen sensor connecting structure without the short-circuit electric contact group 3 is mounted to the ventilator, the two detection electric contacts D1 in the detection electric contact group 4 are in an off state, the detection signal input terminal H1 receives a high level, and the ventilator 5 can detect different types of oxygen sensors 2 according to the level of the detection signal input terminal H1 receiving a signal.
In an embodiment, the ventilator may have integrated therein a signal processing circuit having filtering and level shifting functions. In an embodiment, as shown in fig. 11, the oxygen sensor 2 may be a paramagnetic oxygen sensor, and the first power signal VCC and the second power signal GND may also be electrically connected to the paramagnetic oxygen sensor to supply power to modules such as a light source in the paramagnetic oxygen sensor. Of course, the type of the oxygen sensor may also be identified by a chip or the like provided on the oxygen sensor or the sensor adapter member.
In an embodiment, the oxygen sensor connection structure may further include an electrical signal relay unit, and the oxygen sensor connection structure is configured to relay the oxygen concentration detection value of the oxygen sensor to the ventilator through the electrical signal relay unit. In an embodiment, the electrical signal switching unit is a connection for transmitting data related to oxygen concentration detection between the oxygen sensor and the ventilator, for example, the oxygen sensor may transmit an oxygen concentration acquisition signal to the ventilator through the electrical signal switching unit, and may also receive a transmission oxygen concentration detection control signal sent by the ventilator or a power supply signal for supplying power to the oxygen sensor through the electrical signal switching unit, and the like.
In one embodiment, the electrical signal switching unit may be configured to output the detection electrical contact for the oxygen concentration signal. Referring to fig. 1 to 11, the oxygen concentration signal output detection electrical contact is provided to include a first oxygen concentration signal output detection electrical contact V1+ and a second oxygen concentration signal output detection electrical contact V1-. When the oxygen sensor 2 is connected to the housing 51 of the ventilator 5 through the sensor adaptor part 1, the first oxygen concentration signal output detection electrical contact V1+ may be set to be correspondingly electrically connected with the first oxygen concentration signal input detection electrical contact V2+ on the ventilator 5, the second oxygen concentration signal output detection electrical contact V1-may be correspondingly electrically connected with the second oxygen concentration signal input detection electrical contact V2-on the ventilator 5, and the ventilator 5 detects the oxygen concentration entering the oxygen sensor 2 according to the oxygen concentration detection signals on the first oxygen concentration signal input detection electrical contact V2+ and the second oxygen concentration signal input detection electrical contact V2-.
In one embodiment, the oxygen sensor may be a chemical oxygen sensor, the chemical oxygen cell is a sealed container containing two electrodes, the cathode is a sheet of PTFE (polytetrafluoroethylene) coated with active catalyst, the anode is a lead block, and the sealed container has only one capillary pore at the top to allow oxygen to pass into the working electrode. The two electrodes are connected to two pins protruding from the surface of the oxygen sensor 2, i.e., a first oxygen concentration signal output detection contact V1+ and a second oxygen concentration signal output detection contact V1-of the oxygen sensor 2 through current collectors. The chemical oxygen cell is filled with electrolyte solution, so that different ions can be exchanged between electrodes, the flow rate of oxygen entering the oxygen sensor 2 depends on the size of capillary micropores at the top of the oxygen sensor 2, when the oxygen reaches a working electrode, the electrodes respectively react, the magnitude of current generated by the reaction correspondingly depends on the oxygen concentration, a known resistor can be connected in series between a first oxygen concentration signal output detection contact V1+ and a second oxygen concentration signal output detection contact V1-in the chemical oxygen cell, and the oxygen concentration entering the chemical oxygen sensor can be detected by acquiring the electromotive force between a first oxygen concentration signal input detection contact V2+ and a second oxygen concentration signal input detection contact V2-by the ventilation device 5.
In one embodiment, the oxygen sensor 2 may also be a paramagnetic oxygen sensor, wherein two glass balls filled with nitrogen are fixed on a rotatable bracket between two magnetic poles of a gas chamber of the paramagnetic oxygen sensor. Oxygen in the tested gas is absorbed into the magnetic field to generate acting force on the sphere and a moment on the sphere axis, and the magnitude of the moment is in a linear relation with the concentration of the oxygen. The paramagnetic oxygen sensor is also provided with a light source and a photoelectric sensor, the middle of the bracket is provided with a mirror, the mirror in the middle of the bracket can reflect the light source to the photoelectric sensor to obtain the deflection displacement of the bracket, the photoelectric sensor feeds back signals to a coil around the bracket to generate a feedback current, the magnitude of the feedback current correspondingly depends on the oxygen concentration, the feedback current flows through a first oxygen concentration signal output detection contact V1+ and a second oxygen concentration signal output detection contact V1-on the surface of the paramagnetic oxygen sensor, a known resistor can be connected in series between the first oxygen concentration signal output detection contact V1+ and the second oxygen concentration signal output detection contact V1-in the paramagnetic oxygen sensor, the ventilator 5 can detect the concentration of oxygen entering the paramagnetic oxygen sensor 2 by obtaining the electromotive force between the first oxygen concentration signal input detection contact V2+ and the second oxygen concentration signal input detection contact V2-.
The ventilator utilizes the first oxygen concentration signal input detection electrical contact V2+ and the second oxygen concentration signal input detection electrical contact V2-to make the electrical interface of the ventilator 5 compatible with the process of detecting the oxygen concentration of the different types of oxygen sensors 2, thereby avoiding the problem that the difficulty of detecting the oxygen concentration of the different types of oxygen sensors 2 is high when the ventilator 5 is replaced by the circuit board in the ventilator 5.
The embodiment of the present invention further provides a ventilation device detachably connected to the connection structure of the oxygen sensor described in the above embodiment, and with reference to fig. 1 to 4 and fig. 7 to 8, the ventilation device includes a housing 51, an air source interface 18 disposed on the housing 51, an inhalation branch 16, an exhalation branch 19, and a control unit 17 enclosed in the housing 51, and a mounting structure matched with the sensor adapter component 1 connected to the oxygen sensor 2 is disposed on the housing 51 of the ventilation device 5. When the at least one oxygen sensor 2 is connected to the housing 51 of the ventilator device 5 via the sensor adapter 1, the air path interface 211 of the oxygen sensor 2 may communicate with the inhalation branch 16 of the ventilator device 5. In an embodiment, the type of oxygen sensor 2 connected to the ventilator 5 is a paramagnetic oxygen sensor 21 or a chemical oxygen sensor 22, and the ventilator 5 may be a ventilator or an anesthesia machine.
In an embodiment, with reference to fig. 1 and fig. 2, the ventilator 5 may further include a gas path sampling outlet 171 disposed on the housing 51, and the gas path sampling outlet 171 connects the inhalation branch 16 with the oxygen sensor 2 or the gas path adapter 161 of the oxygen sensor connection structure, so as to implement the detection of the oxygen concentration of the gas flowing through the inhalation branch 16 by the oxygen sensor.
In an embodiment, while the oxygen sensor 2 collects oxygen concentration of gas flowing through the air intake branch 16 of the ventilator 5, the sensor adapter 1 is utilized to enable different types of oxygen sensors 2 to be connected to the housing 51 of the ventilator 5 through the sensor adapter 1, so that the problem that the oxygen sensor 2 needs to occupy a large space when the installation interface of the ventilator 5 is incompatible is solved, the size of the ventilator 5 is reduced, the portability of the ventilator 5 is improved, and the oxygen sensor 2 connected to the ventilator 5 can be replaced and maintained without detaching the housing 51 of the ventilator 5.
In an embodiment, the ventilator may further comprise a second oxygen sensor type identification unit by which the ventilator identifies the type of oxygen sensor connected to the ventilator. Fig. 12 is a schematic diagram of another oxygen sensor type identification circuit structure according to an embodiment of the present invention. With reference to fig. 1 to 4, 7, 8 and 12, the second oxygen sensor type identification unit may be configured to include digital signal type electrical contacts, for example, a digital signal type output electrical contact E1 is provided on the oxygen sensor 2, a digital signal type input electrical contact F1 is provided on the ventilator 5, and when the oxygen sensor 2 is connected to the housing 51 of the ventilator 5 through the sensor adapter 1, the digital signal type output electrical contacts E1 on the oxygen sensor 2 are electrically connected to the corresponding digital signal type input electrical contacts F1, respectively. Different interaction formats of sensors in digital signals corresponding to different types of oxygen sensors 2 may be set, and ventilator 5 may recognize types of different types of oxygen sensors 2 by analyzing types of digital signals input to electrical contact F1 or whether communication is successful.
In one embodiment, the oxygen sensor may be configured to wirelessly communicate with the ventilator in a different wireless communication format between the oxygen sensor and the ventilator, and the ventilator determines the type of oxygen sensor attached to the ventilator based on the wireless communication format.
In an embodiment, the ventilator may further include a transceiver unit, and the ventilator receives the oxygen concentration detection value of the oxygen sensor through the transceiver unit. Referring to the above embodiment, the electrical signal switching unit and the transceiver unit are connections for transmitting data related to oxygen concentration detection between the oxygen sensor and the ventilator, for example, the oxygen sensor may transmit an oxygen concentration acquisition signal to the ventilator through the electrical signal switching unit, or may receive a transmission oxygen concentration detection control signal sent by the ventilator or a power supply signal for supplying power to the oxygen sensor through the electrical signal switching unit. The ventilation device can transmit an oxygen concentration detection control signal or a power supply signal for supplying power to the oxygen sensor to the ventilation device through the transceiver unit, and can also receive an oxygen concentration acquisition signal sent by the oxygen sensor through the transceiver unit.
The electric signal switching unit and the transceiver unit can be in wired communication or wireless communication. In addition, the transceiver unit may also be arranged to be directly connected to the oxygen sensor, or the transceiver unit may also be arranged to be connected to the electrical signal switching unit, so as to implement signal transmission between the oxygen sensor and the ventilation device. Of course, the oxygen sensor and the ventilator may be directly connected in a wired or wireless manner to transmit the relevant data such as the oxygen concentration detection value and the control signal between the oxygen sensor and the ventilator.
Embodiments of the present invention further provide a ventilation system, which includes at least one oxygen sensor, the oxygen sensor connection structure described in the above embodiments, and the ventilation apparatus described in the above embodiments, wherein the at least one oxygen sensor is detachably connected to the housing of the ventilation apparatus through the oxygen sensor connection structure. In one embodiment, the oxygen sensor is a paramagnetic oxygen sensor or a chemical oxygen sensor. Since the embodiment of the present invention includes the oxygen sensor connection structure and the ventilation device described in the above embodiments, the advantageous effects described in the above embodiments are achieved, and details are not described here.
Claims (13)
- An oxygen sensor attachment structure for attaching at least one oxygen sensor to a housing of a ventilator, comprising:the sensor adapter component is matched with an oxygen sensor mounting structure of the ventilation equipment, and is detachably connected with the oxygen sensor;when at least one oxygen sensor is connected to the shell of the ventilation equipment through the sensor adapter component, the air path interface of the oxygen sensor is communicated with the air suction branch of the ventilation equipment.
- The oxygen sensor connecting structure according to claim 1, further comprising:a first sensor type identification unit, the oxygen sensor connection structure identifying the type of the connected oxygen sensor according to the first sensor type identification unit.
- The oxygen sensor-connecting structure according to claim 2, wherein the type of the connected oxygen sensor is a paramagnetic oxygen sensor or a chemical oxygen sensor.
- The oxygen sensor connecting structure according to claim 1, further comprising:and the air path adapter part is arranged to connect the air path interface of the oxygen sensor and the air suction branch of the ventilation equipment.
- The oxygen sensor connecting structure according to claim 1, further comprising:and the oxygen sensor connecting structure forwards the oxygen concentration detection value of the oxygen sensor to the ventilation equipment through the electric signal switching unit.
- A ventilation device, detachably connected with the oxygen sensor connection structure of any one of claims 1 to 5, comprising a housing, an air source interface arranged on the housing, an inspiration branch, an expiration branch and a control unit encapsulated inside the housing, wherein the housing of the ventilation device is provided with an oxygen sensor mounting structure matched with a sensor adapter part connected with the oxygen sensor;when at least one oxygen sensor is connected to the shell of the ventilation equipment through the sensor adapter component, the air path interface of the oxygen sensor is communicated with the air suction branch of the ventilation equipment.
- The ventilator of claim 6, further comprising:a second oxygen sensor type identification unit by which the ventilator identifies the type of the oxygen sensor connected to the ventilator housing.
- The ventilator of claim 7, wherein the type of oxygen sensor coupled to the ventilator housing is a paramagnetic oxygen sensor or a chemical oxygen sensor.
- The ventilator of claim 6, further comprising:a transceiver unit through which the ventilator receives an oxygen concentration detection value of the oxygen sensor.
- The ventilator of claim 6, further comprising:and the gas path sampling outlet is arranged on the shell and is arranged as a gas path switching component which is connected with the air suction branch and the oxygen sensor or the oxygen sensor connecting structure.
- The ventilator of claim 6, wherein the ventilator is a ventilator or an anesthesia machine.
- A ventilation system comprising at least one oxygen sensor, the oxygen sensor attachment structure of any one of claims 1-5, and the ventilation device of any one of claims 6-11, the at least one oxygen sensor being removably attached to the housing of the ventilation device via the oxygen sensor attachment structure.
- The ventilation system of claim 12, wherein the oxygen sensor is a paramagnetic oxygen sensor or a chemical oxygen sensor.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2018/101163 WO2020034217A1 (en) | 2018-08-17 | 2018-08-17 | Oxygen sensor connection structure, ventilation device, and ventilation system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112135654A true CN112135654A (en) | 2020-12-25 |
| CN112135654B CN112135654B (en) | 2023-01-06 |
Family
ID=69524517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880093640.8A Active CN112135654B (en) | 2018-08-17 | 2018-08-17 | Oxygen sensor connection structure, ventilation apparatus, and ventilation system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112135654B (en) |
| WO (1) | WO2020034217A1 (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09122103A (en) * | 1995-10-30 | 1997-05-13 | Aisan Ind Co Ltd | Respiration monitor |
| US20090095048A1 (en) * | 2007-10-12 | 2009-04-16 | Hitachi, Ltd. | Oxygen Sensor Inspection Method and Apparatus and Oxygen Sensor Production Method |
| CN102107037A (en) * | 2009-12-28 | 2011-06-29 | 周常安 | Air delivery system |
| US20110197883A1 (en) * | 2008-10-17 | 2011-08-18 | Koninklijke Philips Electronics N.V. | Porting block for a medical ventilator |
| US20120085435A1 (en) * | 2010-10-09 | 2012-04-12 | Shenzhen Mindray Bio-Medical Electronics Co., Ltd. | Oxygen sensor seat assembly, oxygen sensor assembly, and anesthesia machine |
| WO2016140980A1 (en) * | 2015-03-02 | 2016-09-09 | Covidien Lp | Medical ventilator, method for replacing an oxygen sensor on a medical ventilator, and medical ventilator assembly |
| CN108348715A (en) * | 2015-11-13 | 2018-07-31 | 欧根·卡根 | Lung ventilator |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2502981B (en) * | 2012-06-12 | 2018-11-07 | Gyrus Medical Ltd | Electrosurgical instrument & system |
| CN203591510U (en) * | 2013-12-10 | 2014-05-14 | 北京易世恒电子技术有限责任公司 | Multifunctional safety valve |
| US20150238721A1 (en) * | 2014-02-24 | 2015-08-27 | Vetland Medical Sales and Services, LLC | Electronic E-Cylinder |
| CN104784793B (en) * | 2015-04-14 | 2017-10-10 | 深圳市科曼医疗设备有限公司 | The lambda sensor automatic calibrating method of lung ventilator and lung ventilator |
-
2018
- 2018-08-17 WO PCT/CN2018/101163 patent/WO2020034217A1/en active Application Filing
- 2018-08-17 CN CN201880093640.8A patent/CN112135654B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09122103A (en) * | 1995-10-30 | 1997-05-13 | Aisan Ind Co Ltd | Respiration monitor |
| US20090095048A1 (en) * | 2007-10-12 | 2009-04-16 | Hitachi, Ltd. | Oxygen Sensor Inspection Method and Apparatus and Oxygen Sensor Production Method |
| US20110197883A1 (en) * | 2008-10-17 | 2011-08-18 | Koninklijke Philips Electronics N.V. | Porting block for a medical ventilator |
| CN102107037A (en) * | 2009-12-28 | 2011-06-29 | 周常安 | Air delivery system |
| US20120085435A1 (en) * | 2010-10-09 | 2012-04-12 | Shenzhen Mindray Bio-Medical Electronics Co., Ltd. | Oxygen sensor seat assembly, oxygen sensor assembly, and anesthesia machine |
| WO2016140980A1 (en) * | 2015-03-02 | 2016-09-09 | Covidien Lp | Medical ventilator, method for replacing an oxygen sensor on a medical ventilator, and medical ventilator assembly |
| CN108348715A (en) * | 2015-11-13 | 2018-07-31 | 欧根·卡根 | Lung ventilator |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020034217A1 (en) | 2020-02-20 |
| CN112135654B (en) | 2023-01-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1439781B9 (en) | Apparatus for diagnostic gas analysis | |
| US20100137732A1 (en) | Gas analyzing unit and airway adapter | |
| US20080091116A1 (en) | Arrangement for Analysing Respiratory Gases | |
| CN112135654B (en) | Oxygen sensor connection structure, ventilation apparatus, and ventilation system | |
| CN108348715B (en) | Breathing machine | |
| CN209883229U (en) | Personnel safety monitoring and accurate positioning wrist under industrial environment | |
| CN105031785A (en) | Method and device for controlling inspiration trigger | |
| WO2019145678A1 (en) | Apparatus and method for obtaining a breath sample | |
| CN218305734U (en) | Calibration system of breathing machine | |
| CN109557008A (en) | Dust concentration measurer and dust concentration measuring kit | |
| CN111157590B (en) | Semiconductor type carbon monoxide sensor | |
| CN210727745U (en) | Diabetes detection device | |
| CN213312657U (en) | Trachea cannula patient expired air collection device | |
| CN105148371B (en) | Intelligent domestic respirator system | |
| WO2022090702A2 (en) | Apparatus for sensing and analysing breathing | |
| CN209499730U (en) | Partial pressure of carbon dioxide in endexpiratory gas measuring device and system | |
| CN205665252U (en) | Last carbon dioxide sensor is exhaled to multi -functional mainstream | |
| CN217014000U (en) | Wearable abdomen detection device | |
| CN219982871U (en) | Measuring device and adapter for fusion of gas concentration and respiratory mechanics parameters | |
| CN111067557A (en) | Patient breath holding monitoring device and method applied to CT scanning | |
| US10952428B2 (en) | Remote monitor for wild animal trap | |
| CN218157459U (en) | Medical instrument | |
| CN209713903U (en) | Attachment device and breathing apparatus | |
| CN213097842U (en) | Novel patient monitor | |
| CN214334763U (en) | Oxygen sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |