CN108310563A - A kind of lung ventilator - Google Patents
A kind of lung ventilator Download PDFInfo
- Publication number
- CN108310563A CN108310563A CN201810136349.6A CN201810136349A CN108310563A CN 108310563 A CN108310563 A CN 108310563A CN 201810136349 A CN201810136349 A CN 201810136349A CN 108310563 A CN108310563 A CN 108310563A
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- China
- Prior art keywords
- gas circuit
- air
- gas
- shell
- circuit module
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- 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.)
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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
- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
-
- 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
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/14—Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase
- A61M16/16—Devices to humidify the respiration air
-
- 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
- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
- A61M2016/003—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter
Abstract
A kind of lung ventilator, including host and humidification device；Host includes the gas circuit module in shell and shell, and the air outlet slit of gas circuit module is communicated with the air intake gas circuit of humidification device；It is positioned by least one flexible connecting structure between gas circuit module and shell, an at least position limiting structure is additionally provided between gas circuit module and shell；Host further includes air flue switching device, including air intake and gas outlet, and the two gas circuit is connected to non-coaxial setting；Air intake is plugged into the air outlet slit of gas circuit module, and gas outlet is plugged into the air intake of humidification device；The air intake of gas circuit module is connected to by flexible buffer pipe with the opening connection on shell and gas circuit, and the air outlet slit of gas circuit module is tightly connected with the air intake of air flue switching device by another flexible buffer pipe and gas circuit is connected to.
Description
Technical field
The present invention relates to medical instruments fields, and in particular to a kind of lung ventilator.
Background technology
Effective means of the lung ventilator as an energy artificial substituting expiratory positive airway pressure function, has been commonly used to caused by a variety of causes
Respiratory failure, the anesthesia respiration management during major operation, in Breathing Suppotion treatment and emergency resuscitation, in Modern Medical Field
Occupy highly important position, prevention and treatment respiratory failure can be played by being one kind, reduce complication, save and extend patient
The vital Medical Devices of life.
Its operation principle be by controller detect patients with respiratory tract obstruction signal, to the air in lung ventilator air flue into
Row pressurization appropriate, and then the respiratory tract occlusion of positive opening patient, provide Continuous aeration to patient, keep patient body interior energy
Obtain enough oxygen.
Currently, lung ventilator its important composition on the market is divided into host and humidification device two parts.It works in lung ventilator
When, it is pumped air into humidification device by motor in host, by the breathing for being re-fed into user after humidification device humidification
Road.Water vapour will be carried when flowing through humidification device due to air and forms wet air, and the air with appropriate humidity enters
Patient airway will not cause to damage to fragile respiratory airway and air flue mucous membrane, so as to improve the usage experience of user, to
The disease treatment at family plays beneficial auxiliaring effect.
Existing lung ventilator has the following disadvantages：One, the gas circuit module of lung ventilator host machine part is solid using hardwired mode
It is scheduled on pedestal, vibration is big when work, and connection structure is easily damaged, especially when carrying by external impact；Two, gas circuit mould
The air intake of the direct-connected humidification device of air outlet slit of group, easy tos produce noise, and higher to the structural requirement of humidification device.
Therefore, above-mentioned the shortcomings of the prior art how is solved, is become as the project of the invention to be researched and solved.
Invention content
The object of the present invention is to provide a kind of lung ventilators.
In order to achieve the above objectives, the technical solution adopted by the present invention is：
A kind of lung ventilator, including host machine part and the humidification device part that is assemblied on the host；The host includes a shell
Body and the gas circuit module being positioned in the shell, an air outlet slit of the gas circuit module and an air of the humidification device
Entrance gas circuit communicates；Wherein：
It is positioned by least one flexible connecting structure between the gas circuit module and the shell；Also, in the gas circuit module
An at least position limiting structure is additionally provided between the shell；
The host further includes an air flue switching device, which includes an air intake and a gas outlet, the two
It is connected to by a gas channel gas circuit；
The air intake is plugged into the air outlet slit of the gas circuit module, and the plug into air of the humidification device of the gas outlet enters
Mouthful, and the air intake and the non-coaxial setting in the gas outlet；
The air intake of the gas circuit module is connected to by a flexible buffer pipe with the opening connection on the shell and gas circuit,
The air outlet slit of gas circuit module is tightly connected by the air intake of another flexible buffer pipe and the air flue switching device and gas circuit
Connection.
Related content in above-mentioned technical proposal is explained as follows：
1. in said program, passing through the setting of flexible connecting structure, on the one hand, when the air blower running in gas circuit module,
Vibration will be able to absorb by flexible connecting structure, will not reach vibration on shell, have significant effectiveness in vibration suppression；Another party
Face allows gas circuit module to have certain free displacement space, avoids it from being contacted firmly with shell, and then avoid receiving in host
Gas circuit module is damaged when external impacts.
2. in said program, the flexible connecting structure is equipped with multiple, and is at least distributed in the bottom of the gas circuit module
Surrounding.In addition to bottom and other than, also can be set to gas circuit module side or top, the bottom to be set to gas circuit module is preferred.Into
One step, the quantity of flexible connecting structure can be three or three or more, to constitute a flexible support face stablized.
It, can be by being arranged to flexible connecting structure with large contact when the quantity of flexible connecting structure is one
Form positioning is contacted and connected with gas circuit module face, to reach steadily connection relation.
3. in said program, the flexible connecting structure is flexible connection column or flexible connection pad or other with similar
The structure of function.Flexible connecting structure is made of known flexible material, such as rubber, silica gel, sponge.
4. in said program, the position limiting structure includes the spacing ring being arranged in each flexible connecting structure circumference, institute
It states spacing ring and is arc-shaped semicircle or round, one-to-one correspondence and the circumference for being set to flexible connecting structure in circular shape；Institute
Spacing ring is stated to be fixedly arranged on shell, and with the flexible connecting structure clearance fit, both left the swing of flexible connecting structure
Space provides certain degree of freedom to the vibration of gas circuit module, have can be used for limiting flexible connecting structure it is in the horizontal direction most
Big amplitude of fluctuation.
5. in said program, the position limiting structure includes a upper limit structure, which is included in level
The upper limit seat and upper limit column or the other groups of structures merged against cooperation, the two of direction against cooperation are solid respectively
Set on the top of the gas circuit module and the inside of the shell.
By the setting of the upper limit structure, it can be used for gas circuit module described in auxiliary stopper above, cooperation is flexible
Connection structure and spacing ring can avoid damaging when transport, it can be achieved that limit gas circuit module in direction upward or downward, front or back, left or right
Bad gas circuit module, can avoid destroying other connection structures inside host, also has and falls cushioning effect.
6. in said program, the upper limit seat is soft materials with the upper limit column one, and another one is hard
Property material, or both be soft materials, can ensure in this way the gas circuit module can have certain displacement space, conducive to subtracting
It shakes, while good limit effect can be reached again.
When the upper limit column is rigid material, also it can be arranged bumper ring on upper limit column, further to carry
Effectiveness in vibration suppression is risen, while extending the service life of the upper limit seat and the upper limit column.
7. in said program, by the way that the air flue switching device is arranged, the length of air flue in breathing machine host can be shortened, subtracted
The small volume of gas circuit module, while short distance switching air flue reduces the impedance of gas circuit, improves the gas flow of lung ventilator
Accuracy of detection.
8. in said program, the air intake of air flue switching device is located at the air inlet end of the gas channel, air flue turns
The gas outlet of connection device is located at the air outlet slit end of the gas channel, and the width at the air outlet slit end is more than the sky
The width of gas arrival end（No more than 1.5 times）.It designs whereby, outlet air-flow can be stablized.
9. in said program, the thickness of the air flue switching device is greater than or equal to 10mm.The upper limit of the thickness is by breathing
The size of casing body determines, but is not smaller than 10mm, otherwise air circulation impedance will be caused excessive, and can not reserved space to not
Carry out the noise-reducing structure that will be arranged.
10. in said program, by the setting of the air flue switching device, when the water in the humidification device once occurring
Countercurrently, it will be introduced into the air flue conversion equipment, protective effect is played to the air blower in gas circuit module to a certain extent.
11. in said program, the air intake of the gas circuit module passes through one on a flexible buffer pipe and the shell
Opening connection and gas circuit connection, the air outlet slit of gas circuit module are entered by another flexible buffer pipe and the air flue switching device
Gas port is tightly connected and gas circuit connection.The design of the two flexible buffers pipe coordinates the flexible connecting structure to subtract with further promotion
It shakes effect.
The flexible buffer pipe can be that the flexible materials such as silica gel, rubber are constituted.
12. in said program, the air intake that the gas circuit module is corresponded on the shell is open equipped with one, in the opening
It is provided with a cover plate, which closes or opens the opening, and several ventholes are provided on the cover plate.When
When cover plate closes opening, waterproof action can be played, and does not influence air and flows into the gas circuit module.
Further, the cover plate is detachable, to clean；
It in addition, there are an assembly space between the cover plate and the opening, can be used for assembling air filtration structure, such as filter
Net, filter pad etc..
13. in said program, the cover plate is connected with by a shaft in the opening, and opposed open is rotatably opened
It closes, therefore not easily to fall off, and is combined by buckle structure and the opening.
14. in said program, the shell includes front cover shell and rear casing, the two at least one is that bending is arranged；It is described
Front cover shell or the rear casing are opposite with another one with its inner concave, and front cover shell passes through a rotation connection structure with rear casing
Rotation connection has and opens and closes two states；The rotation axis of the two is horizontally disposed.
15. in said program, the front cover shell or the rear casing are that bending is arranged；The shell further includes a bottom plate,
The front end of the bottom plate connect positioning with the lower end of the front cover shell, and the rear end of bottom plate connect fixed with the lower end of the rear casing
Position；It defines to form an assembly space between three, for assembling the components such as gas circuit module.
16. in said program, the front cover shell is bending setting with the rear casing, the two is mutually opposite with its inner concave
It is assembled, defines to form the assembly space between the two.
17. in said program, the rotation connection structure includes grab and card slot, the two align respectively be set to it is described before
The junction of case and the rear casing.When front cover shell and rear casing are opened, the grab is freely rotated in the card slot；
When front cover shell and rear casing are closed, the grab is locked with the card slot.
18. in said program, a sensor assembly of a kind of detection of gas flow rate device of lung ventilator, corresponding lung ventilator is set
It sets；The flow detector includes a gas channel, which is opened in the host of the lung ventilator, and described
The cross-sectional shape of gas channel is rectangular；
One in front and one in back at least two detection holes are provided along its length on the gas channel；The two equal gas circuit connections of detection hole
In the sensor assembly；
Wherein, further include a flow vapour lock module, which is positioned in the gas channel, and is located at described in two
Between detection hole；The cross-sectional shape of flow vapour lock module is rectangular, corresponding with the cross-sectional shape of the gas channel, and
Offer several air-through holes；
Length direction of the cross-section center of flow vapour lock module along the cross section offers a rectangular centre runner, in the rectangle
At least one air-through holes are equipped in heart runner；
Wherein, four endpoints of the flow vapour lock module rectangular cross section are respectively by one first connection rib and the rectangle
Four endpoints of heart runner connect, and constitute four first connection ribs and are divided into four at the radial cross section by flow vapour lock module
A ventilation zone, and an at least air-through holes are equipped in each ventilation zone.
19. in said program, the cross-sectional shape of the cross-sectional shape and the gas channel of the flow vapour lock module
Match, the peripheral wall for constituting flow vapour lock module fits in the inner wall of the gas channel.
20. in said program, by the way that " four first connection ribs are divided at the radial cross section by flow vapour lock module
Four ventilation zones " constitute each air-through holes radial uniform cloth on the cross section of the flow vapour lock module
It sets.
21. in said program, the flow vapour lock module is detachably disposed in gas channel, can also be integrally formed
In gas channel.
22. in said program, the air-through holes in each ventilation zone and in the rectangular centre runner
Quantity be odd number or prime number, be preferred with prime number, and each air-through holes in each ventilation zone are arranged in parallel, with
Resonance is eliminated, detection waveform instability problem caused by resonance is overcome.
23. further including two second connection ribs in said program, each second connection rib is parallel to flow vapour lock module cross section
Short side setting, and be respectively in the both sides in rectangular centre width of flow path direction；The second connection rib will be in the rectangle
Two ventilation zones of heart flow channel length direction both sides are divided into two sub-regions respectively.Constitute the face of four subregions
The area of product and two ventilation zones of rectangular centre flow channel length direction both sides is same or similar seemingly, to ensure its air velocity
Uniformly, the turbulent phenomenon that air-flow is generated in high flow rate is reduced.
24. in said program, the air-flow that the gas channel enters is by the flow vapour lock module, the detection in upstream
Pressure drop is produced between hole and the detection hole in downstream；When air-flow enters the flow vapour lock module, the speed phase of fluid
To accelerating, this air contributed in gas channel generates larger signal and judges for control system when being in low discharge, i.e.,
The signal resolution under low flow condition can be improved.
25. in said program, by the setting of the flow vapour lock module, not only acting as generation pressure difference, service detection is empty
The purpose of throughput more passes through the special designing of each ventilation zone so that flow vapour lock module can be additionally used in rectification simultaneously, will lead to
The air-flow crossed is combed, and more smoothly laminar flow structure is appeared as.
26. in said program, control circuit module is additionally provided in the host, the air detected by sensor assembly
Flow in turn controls the rotating speed of air blower, goes out wind pressure to change host, in addition to control circuit module and other than, host is also
Including other components such as power module, display apparatus module.
The operation principle and advantage of the present invention is as follows：
A kind of lung ventilator of the present invention, including host and humidification device；Host includes the gas circuit module in shell and shell, gas circuit mould
The air outlet slit of group is communicated with the air intake gas circuit of humidification device；Pass through at least one flexible connection between gas circuit module and shell
Structure positioning is additionally provided with an at least position limiting structure between gas circuit module and shell；Host further includes air flue switching device, including
Air intake and gas outlet, the two gas circuit are connected to non-coaxial setting；Air intake is plugged into the air outlet slit of gas circuit module, and gas outlet connects
Refute the air intake of humidification device；The air intake of gas circuit module passes through the opening connection on flexible buffer pipe and shell and gas
Road is connected to, and the air outlet slit of gas circuit module is tightly connected by the air intake of another flexible buffer pipe and air flue switching device and gas
Road is connected to.
Compared to existing technologies, gas circuit module of the present invention is flexibly connected with shell, can eliminate the vibration generated when work,
With significant effectiveness in vibration suppression, damage element can be avoided；And the certain free displacement space of gas circuit module is provided, is avoided
It is contacted firmly with shell generation, damage when avoiding external impacts to gas circuit module.By the way that air flue switching device, a side is arranged
Face eliminates noise, while reducing the volume of gas circuit module, reduces the impedance of gas circuit, and can improve the gas stream of lung ventilator
Measure accuracy of detection.
Description of the drawings
Attached drawing 1 is the appearance diagram of the embodiment of the present invention；
Attached drawing 2 is the decomposition explosion figure of the embodiment of the present invention；
Attached drawing 3 is that the embodiment of the present invention removes the internal structure schematic diagram after forward and backward case；
Attached drawing 4 is that the embodiment of the present invention removes the internal structure schematic diagram after gas circuit module and air flue switching device；
Attached drawing 5 is the structural schematic diagram of upper limit structure of the embodiment of the present invention.
Attached drawing 6 is A-A profile structure diagram in Fig. 5；
Attached drawing 7 is the structural schematic diagram of gas circuit module of the embodiment of the present invention；
Attached drawing 8 is the structural schematic diagram of air flue switching device of the embodiment of the present invention；
Attached drawing 9 is the cross-sectional view of host of the embodiment of the present invention；
Structural schematic diagram when attached drawing 10 is front cover shell of the embodiment of the present invention and rear casing closure；
Structural schematic diagram when attached drawing 11 is front cover shell of the embodiment of the present invention and rear casing opening；
Attached drawing 12 is the structural schematic diagram of wherein side plate of the embodiment of the present invention；
Attached drawing 13 is the structure principle chart of Figure 12；
Attached drawing 14 is the structural schematic diagram of detection of gas flow rate device of the embodiment of the present invention；
Attached drawing 15 is the cross-sectional view of detection of gas flow rate device of the embodiment of the present invention；
Attached drawing 16 is the structural schematic diagram of detection of gas flow rate device partial cross of the embodiment of the present invention.
In the figures above：1. host；2. humidification device；3. shell；4. gas circuit module；5. the air intake of gas circuit module；
6. the air outlet slit of gas circuit module；7. the air intake of humidification device；8. flexible connecting structure；9. spacing ring；10. upper limit
Seat；11. upper limit column；12. bumper ring；13. air flue switching device；14. air intake；15. gas outlet；16. gas channel；
17. air inlet end；18. air outlet slit end；19. flexible buffer pipe；20. opening；21. front cover shell；22. rear casing；23. top
Plate；24. front panel；25. bottom plate；26. grab；27. card slot；28. side plate；29. cover plate；30. venthole；31. gas channel；
32. detection hole；33. flow vapour lock module；34. air-through holes；35. rectangular centre runner；36. the first connection rib；37. ventilation
Region；38. the second connection rib；39. subregion.
Specific implementation mode
The invention will be further described with reference to the accompanying drawings and embodiments：
Embodiment：Shown in attached drawing 1 ~ 13, a kind of lung ventilator, including 1 part of host and the humidifying that is assemblied on the host 1
2 part of device；The host 1 includes a shell 3 and the gas circuit module 4 being positioned in the shell 3, the gas circuit module 4 tool
There is an air intake 5, is connected to ambient atmosphere；One air of one air outlet slit 6 and the humidification device 2 of the gas circuit module 4
7 gas circuit of entrance communicates；Air blower is equipped in gas circuit module 4, air blower is pumped into air by air intake 5 and passes through air outlet slit
6 are pumped into humidification device 2.
It is positioned by least one flexible connecting structure 8 between the gas circuit module 4 and the shell 3；Also, in the gas
An at least position limiting structure is additionally provided between road module 4 and the shell 3；
Pass through the setting of flexible connecting structure 8, on the one hand, when the air blower running in gas circuit module 4, vibration will be led to
The absorption of flexible connecting structure 8 is crossed, vibration will not be reached on shell 3, there is significant effectiveness in vibration suppression；On the other hand, it allows
Gas circuit module 4 has certain free displacement space, it is avoided to be contacted firmly with shell 3, and then avoids receiving external force punching in host 1
Gas circuit module 4 is damaged when hitting.
Wherein, such as Fig. 3,4, there are three the flexible connecting structure 8 is set, and it is distributed in the bottom four of the gas circuit module 4
Week.In addition to bottom and other than, can also be set to gas circuit module 4 side or top, the bottom to be set to gas circuit module 4 is preferred.
The flexible connecting structure 8 be flexible connection column, can also be flexible connection pad or it is other have similar function
Structure.Flexible connecting structure 8 is made of known flexible material, such as rubber, silica gel, sponge.
Wherein, the position limiting structure includes the spacing ring 9 being arranged in each 8 circumference of the flexible connecting structure, the limit
Ring 9 is arc-shaped（Or it is semicircle or round）, correspond and in the circumference for being set to flexible connecting structure 8 around shape；Institute
Spacing ring 9 is stated to be fixedly arranged on shell 3, and with 8 clearance fit of the flexible connecting structure, both left flexible connecting structure 8
Swing space provides certain degree of freedom to the vibration of gas circuit module 4, has and can be used for limiting flexible connecting structure 8 in level side
To full swing amplitude.
Wherein, if Fig. 5,6, the position limiting structure further include a upper limit structure, which is included in water
Square to upper limit seat 10 and the upper limit column 11 or the other groups of structures merged against cooperation against cooperation, the two
It is fixedly arranged on the top of the gas circuit module 4 and the inside of the shell 3 respectively.
By the setting of the upper limit structure, it can be used for gas circuit module 4 described in auxiliary stopper above, cooperation is flexible
Connection structure 8 and spacing ring 9 are, it can be achieved that limit gas circuit module 4 in direction upward or downward, front or back, left or right, when can avoid transport
Gas circuit module 4 is damaged, can avoid destroying the 1 other connection structures in inside of host, also have and fall cushioning effect.
Wherein, the upper limit seat 10 and 11 one of upper limit column are soft materials, and another one is rigid material
Matter, or both be soft materials, can ensure in this way the gas circuit module 4 can have certain displacement space, be conducive to vibration damping,
It can reach good limit effect again simultaneously.
When the upper limit column 11 is rigid material, bumper ring 12 can be also arranged on upper limit column 11, with into
One step promotes effectiveness in vibration suppression, while extending the service life of the upper limit seat 10 and the upper limit column 11.
As shown in figure 8, the host 1 further includes an air flue switching device 13, which enters gas including one
Mouth 14 and a gas outlet 15, the two pass through 16 gas circuit of a gas channel and are connected to；
The air intake 14 is plugged into the air outlet slit 6 of the gas circuit module 4, and the gas outlet 15 is plugged into the humidification device 2
Air intake 7, and the air intake 14 and 15 non-coaxial setting of the gas outlet.
By the way that the air flue switching device 13 is arranged, the length of air flue in host 1 can be shortened, reduce gas circuit module 4
Volume, while short distance switching air flue reduces the impedance of gas circuit, improves the detection of gas flow rate precision of lung ventilator.
The air intake 14 of air flue switching device 13 is located at the air inlet end 17 of the gas channel 16, air flue switching device
13 gas outlet 15 is located at the air outlet slit end 18 of the gas channel 16, and the width at the air outlet slit end 18 is more than institute
State the width of air inlet end 17（No more than 1.5 times）.It designs whereby, outlet air-flow can be stablized.
Wherein, the thickness of the air flue switching device 13 is greater than or equal to 10mm.The upper limit of the thickness is by lung ventilator shell 3
Size determine, but be not smaller than 10mm, otherwise air circulation impedance will be caused excessive, and can not reserved space will to future
The noise-reducing structure of setting.
Wherein, as shown in figure 9, the air intake 5 of the gas circuit module 4 passes through a flexible buffer pipe 19 and the shell 3
On 20 connection of an opening and gas circuit connection, the air outlet slit 6 of gas circuit module 4 passes through another flexible buffer pipe 19 and the air flue
The air intake 14 of switching device 13 is tightly connected and gas circuit connection.The design of the two flexible buffers pipe 19 coordinates the flexible connection
Structure 8 is further to promote effectiveness in vibration suppression.The flexible buffer pipe 19 can be that the flexible materials such as silica gel, rubber are constituted.
Wherein, as shown in Figure 10,11, the shell 3 includes front cover shell 21 and rear casing 22, and the front cover shell 21 is bending
Setting, is formed simultaneously top plate 23 and front panel 24；The shell 3 further includes a bottom plate 25, the front end of the bottom plate 25 with it is described
The lower end of front cover shell 21 snaps connection positioning, and the rear end of bottom plate 25 connect positioning with the lower end of the rear casing 22；Between three
It defines to form an assembly space, for assembling the components such as gas circuit module 4.
The rear end of the front cover shell 21 and the upper end of the rear casing 22 are rotatablely connected by rotation connection structure, before composition
Case 21 can in above-below direction have with respect to rear casing 22 opens and closes two states；The rotation axis of the two is set in the horizontal direction
It sets.
The rotation connection structure includes grab 26 and card slot 27, and the two aligns be set to the front cover shell 21 and institute respectively
State the junction of rear casing 22.When front cover shell 21 and rear casing 22 are opened, the grab 26 freely turns in the card slot 27
It is dynamic；When front cover shell 21 and rear casing 22 are closed, the grab 26 is locked with the card slot 27.
Wherein, as shown in Figure 12,13, the shell 3 further includes side plate 28, and the gas circuit module is corresponded on the side plate 28
4 air intake 5 is equipped with the opening 20, and a cover plate 29 is provided in the opening 20, which carries out the opening 20
It closes or opens, and is provided with several ventholes 30 on the cover plate 29.It, can be with when cover plate 29 closes opening 20
Waterproof action is played, and does not influence air and flows into the gas circuit module 4.
Further, the cover plate 29 is detachable, to clean；In addition, being stayed between the cover plate 29 and the opening 20
There is an assembly space, can be used for assembling air filtration structure, such as filter screen, filter pad.
Wherein, the cover plate 29 is connected with by a shaft at the opening 20, and opposed open 20 rotatably opens and closes, because
This is not easily to fall off, and is combined with the opening 20 by buckle structure.
Further include detection of gas flow rate device such as Figure 14 ~ 16, the sensor assembly setting of corresponding lung ventilator；The stream
Amount detecting device includes a straight gas channel 31, which is opened in the gas circuit module 4 of the breathing machine host 1
In, it is corresponding with the air intake 5 of gas circuit module 4, and the cross-sectional shape of the gas channel 31 is rectangular.
One in front and one in back two detection hole 32 is provided along its length on the gas channel 31；Two detection holes 32 gas
Road is communicated in the sensor assembly；The front detection hole 2 is located at the upstream of air-flow, rear detection hole 2 in the direction of the air flow
Positioned at the downstream of air-flow.
Wherein, further include a flow vapour lock module 33, which is positioned in the gas channel 31, and
Between two detection holes 32；The flow vapour lock module 33 is to be detachably disposed in gas channel 31, can also
It is shaped in gas channel 31.
The cross-sectional shape of the flow vapour lock module 33 is rectangular, opposite with the cross-sectional shape of the gas channel 31
It answers, and offers several air-through holes 34；The peripheral wall of flow vapour lock module 33 fits in the inner wall of the gas channel 31.
The air-flow that the gas channel 31 enters is by the flow vapour lock module 33, in the detection hole 32 of upstream and downstream
Detection hole 32 between produce pressure drop；When air-flow enters the flow vapour lock module 33, the speed of air-flow is opposite to be added
Speed, this air contributed in gas channel 31 generate larger signal and judge for control system when being in low discharge, you can
To improve the signal resolution under low flow condition.
Wherein, as shown in figure 15, length direction water of the cross-section center of the flow vapour lock module 33 along the cross section
It is opened flat and is equipped with a rectangular centre runner 35（If the vertical direction of cross section is length direction, rectangular centre runner 35 is opened vertically
If）, at least one air-through holes 34 are equipped in the rectangular centre runner 35.
Four endpoints of 33 rectangular cross section of flow vapour lock module pass through one first connection rib 36 and the square respectively
Four endpoints of shape center flow channels 35 connect, and constitute four first connection ribs 36 at radial by the transversal of flow vapour lock module 33
Face is divided into four ventilation zones 37, and at least one air-through holes 34 are equipped in each ventilation zone 37；Structure
It is evenly arranged at each air-through holes 34 are radial on the cross section of the flow vapour lock module 33.
The quantity of the air-through holes 34 in each ventilation zone 37 and in the rectangular centre runner 35 is equal
It for odd number or prime number, is preferred with prime number, and each air-through holes 34 in each ventilation zone 37 are arranged in parallel, to eliminate
Resonance overcomes detection waveform instability problem caused by resonance.
Wherein, further include two second connection ribs 38, each second, which connects rib 38, is parallel to 33 cross section of flow vapour lock module
Short side is arranged, and is respectively in the both sides of 35 width direction of rectangular centre runner；Described second connects rib 38 by the rectangle
Two ventilation zones 37 of 35 length direction both sides of center flow channels are divided into two sub-regions 39 respectively.Constitute four sons
The area in region 39 and the area of two ventilation zones 37 of 35 length direction both sides of rectangular centre runner are same or similar seemingly, to protect
The uniform of its air velocity is demonstrate,proved, the turbulent phenomenon that air-flow is generated in high flow rate is reduced.
By the setting of the flow vapour lock module 33, generation air-flow differential is not only acted as, convenient for detection air mass flow
Purpose more passes through the special designing of each ventilation zone 37 so that flow vapour lock module 33 can be additionally used in rectification simultaneously, by by
Air-flow is combed, and more smoothly laminar flow structure is appeared as.
Wherein, it is additionally provided with control circuit module in the host 1（It is not drawn in figure）, detected by sensor assembly
Air mass flow in turn controls the rotating speed of air blower, goes out wind pressure to change host 1, in addition to control circuit module and other than,
Host 1 further includes other components such as power module, display apparatus module.
Compared to existing technologies, gas circuit module of the present invention is flexibly connected with shell, can eliminate the vibration generated when work,
With significant effectiveness in vibration suppression, damage element can be avoided；And the certain free displacement space of gas circuit module is provided, is avoided
It is contacted firmly with shell generation, damage when avoiding external impacts to gas circuit module.By the way that air flue switching device, a side is arranged
Face eliminates noise, while reducing the volume of gas circuit module, reduces the impedance of gas circuit, and can improve the gas stream of lung ventilator
Measure accuracy of detection.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present invention
Equivalent change or modification made by Spirit Essence, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of lung ventilator, including host machine part and the humidification device part that is assemblied on the host；The host includes one
Shell and the gas circuit module being positioned in the shell, an air outlet slit of the gas circuit module are empty with the one of the humidification device
Gas entrance gas circuit communicates；It is characterized in that：
It is positioned by least one flexible connecting structure between the gas circuit module and the shell；Also, in the gas circuit module
An at least position limiting structure is additionally provided between the shell；
The host further includes an air flue switching device, which includes an air intake and a gas outlet, the two
It is connected to by a gas channel gas circuit；
The air intake is plugged into the air outlet slit of the gas circuit module, and the plug into air of the humidification device of the gas outlet enters
Mouthful, and the air intake and the non-coaxial setting in the gas outlet；
The air intake of the gas circuit module is connected to by a flexible buffer pipe with the opening connection on the shell and gas circuit,
The air outlet slit of gas circuit module is tightly connected by the air intake of another flexible buffer pipe and the air flue switching device and gas circuit
Connection.
2. lung ventilator according to claim 1, it is characterised in that：The flexible connecting structure is equipped with multiple and at least equal
It is distributed in the bottom surrounding of the gas circuit module.
3. lung ventilator according to claim 1, it is characterised in that：The position limiting structure includes that setting connects in each flexibility
The spacing ring of binding structure circumference, the spacing ring are fixedly arranged on shell, and with the flexible connecting structure clearance fit.
4. lung ventilator according to claim 1, it is characterised in that：The position limiting structure includes a upper limit structure, should
Upper limit structure includes that the upper limit seat against cooperation and upper limit column, the two are fixedly arranged on described respectively in the horizontal direction
The top of gas circuit module and the inside of the shell.
5. lung ventilator according to claim 1, it is characterised in that：The air that the air intake is located at the gas channel enters
Mouth end, the gas outlet is located at the air outlet slit end of the gas channel, and the width at the air outlet slit end is more than described
The width of air inlet end.
6. lung ventilator according to claim 1, it is characterised in that：The shell includes front cover shell and rear casing, and the two is extremely
Few one is that bending is arranged；The front cover shell or the rear casing are opposite with another one with its inner concave, and front cover shell is with after
Case is rotatablely connected by a rotation connection structure, is had and is opened and closed two states；The rotation axis of the two is in the horizontal direction
Setting.
7. lung ventilator according to claim 6, it is characterised in that：The front cover shell or the rear casing are that bending is arranged；
The shell further includes a bottom plate, and the front end of the bottom plate connect positioning, the rear end of bottom plate and institute with the lower end of the front cover shell
State the lower end connection positioning of rear casing；It defines to form an assembly space between three.
8. lung ventilator according to claim 6, it is characterised in that：The front cover shell is that bending is set with the rear casing
It sets, the two is mutually assembled so that its inner concave is opposite, defines to form an assembly space between the two.
9. lung ventilator according to claim 6, it is characterised in that：The rotation connection structure includes grab and card slot, and two
Person aligns the junction for being set to the front cover shell and the rear casing respectively.
10. lung ventilator according to claim 1, it is characterised in that：Further include a detection of gas flow rate device, including a gas
Circulation road, the gas channel are opened in the host of the lung ventilator, and its cross-sectional shape is rectangular；On the gas channel
It is provided along its length one in front and one in back at least two detection holes；Further include a flow vapour lock module, flow vapour lock module positioning
In the gas channel, and between two detection holes；The cross-sectional shape of flow vapour lock module is rectangular, and described
The cross-sectional shape of gas channel is corresponding, and offers several air-through holes；The cross-section center edge of flow vapour lock module
The length direction of the cross section offers a rectangular centre runner, and at least one air circulation is equipped in the rectangular centre runner
Hole；
Wherein, four endpoints of the flow vapour lock module rectangular cross section are respectively by one first connection rib and the rectangle
Four endpoints of heart runner connect, and constitute four first connection ribs and are divided into four at the radial cross section by flow vapour lock module
A ventilation zone, and an at least air-through holes are equipped in each ventilation zone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810136349.6A CN108310563A (en) | 2018-02-09 | 2018-02-09 | A kind of lung ventilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810136349.6A CN108310563A (en) | 2018-02-09 | 2018-02-09 | A kind of lung ventilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108310563A true CN108310563A (en) | 2018-07-24 |
Family
ID=62903900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810136349.6A Withdrawn CN108310563A (en) | 2018-02-09 | 2018-02-09 | A kind of lung ventilator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108310563A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108543180A (en) * | 2018-02-09 | 2018-09-18 | 苏州鱼跃医疗科技有限公司 | A kind of noninvasive mute lung ventilator |
-
2018
- 2018-02-09 CN CN201810136349.6A patent/CN108310563A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108543180A (en) * | 2018-02-09 | 2018-09-18 | 苏州鱼跃医疗科技有限公司 | A kind of noninvasive mute lung ventilator |
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Address after: 212300 Yunyang Industrial Park, Danyang City, Zhenjiang City, Jiangsu Province (south of Zhenxin Road) Applicant after: JIANGSU YUYUE MEDICAL EQUIPMENT& SUPPLY Co.,Ltd. Applicant after: SUZHOU YUWELL MEDICAL TECHNOLOGY Co.,Ltd. Applicant after: SUZHOU MEDICAL APPLIANCE FACTORY Applicant after: JIANGSU YUWELL INFORMATION SYSTEM Co.,Ltd. Address before: 215000 9 Jinfeng Road, high tech Zone, Suzhou City, Jiangsu Province Applicant before: SUZHOU YUWELL MEDICAL TECHNOLOGY Co.,Ltd. Applicant before: SUZHOU MEDICAL APPLIANCE FACTORY Applicant before: JIANGSU YUYUE MEDICAL EQUIPMENT& SUPPLY Co.,Ltd. Applicant before: JIANGSU YUWELL INFORMATION SYSTEM Co.,Ltd. |
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Application publication date: 20180724 |
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