CN207286425U - Device for storing liquid and lung ventilator - Google Patents
Device for storing liquid and lung ventilator Download PDFInfo
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- CN207286425U CN207286425U CN201720286682.6U CN201720286682U CN207286425U CN 207286425 U CN207286425 U CN 207286425U CN 201720286682 U CN201720286682 U CN 201720286682U CN 207286425 U CN207286425 U CN 207286425U
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Abstract
A kind of device for storing liquid and lung ventilator, device for storing liquid include housing unit, and the housing unit is interior formed with cavity；Venting flow path is through with the cavity；The first detection gas port and the second detection gas port are connected with the venting flow path；Wherein, the venting flow path is configured to be formed the variable cross-section venting flow path of pressure differential between the described first detection gas port and the second detection gas port.Device for storing liquid is configured to be formed the variable cross-section venting flow path of pressure differential in cavity between the first detection gas port and the second detection gas port due to the venting flow path penetrated through, air-flow is circulated to during the second detection gas port from the first detection gas port, naturally energy loss is had, and then forms pressure differential in order to which throughput calculates.After lung ventilator uses device for storing liquid provided by the utility model, the parts of draught head are formed without extra setting again, so as to reduce cost.
Description
Technical field
Respiratory therapy field is the utility model is related to, more particularly to a kind of device for storing liquid, tool for lung ventilator
There is the lung ventilator of the device for storing liquid.
Background technology
At present, it is treatment sleep apnea syndrome (such as order of severity using the continuous positive airway of lung ventilator
Snoring) etc. disease main means.Lung ventilator is when in use, it is necessary to carries out mechanical ventilation, exterior surrounding air to patient
Into after lung ventilator, air is compressed by the compression set in lung ventilator according to the pneumatic parameter of setting, and then compression is empty
Gas enters device for storing liquid, and the effect of device for storing liquid is to combine heating element heating, humidified air, and the moisture increased in air contains
Amount, makes that the gas in patient's suction body is warm, moistening, reduces stimulation of the cold dry gas to respiratory mucosa, improves patient
Comfort level.For the patient using lung ventilator, the size control of throughput is very important, inappropriate throughput
Danger can be brought to patient on the contrary, this must just measure vent gas.
Measurement of the existing lung ventilator to vent gas is that the draught head of two close points of measuring distance is logical to calculate mostly
Tolerance, in general, needing additionally to set the parts for forming draught head between the two points, this can undoubtedly increase cost.
Therefore, it is necessary to a kind of device for storing liquid for lung ventilator, the lung ventilator with the device for storing liquid are provided, with least
Partly solve the problems, such as to need the extra cost increase for setting the parts for forming draught head to bring.
Utility model content
In order to solve to need present in existing lung ventilator at least in part additionally to set the parts band for forming draught head
The cost increase problem come, the utility model provide a kind of device for storing liquid for lung ventilator, and the device for storing liquid includes housing
Component, the housing unit are interior formed with cavity；Venting flow path is through with the cavity；Is connected with the venting flow path
One detection gas port and the second detection gas port；Wherein, the venting flow path be configured to described first detection gas port with it is described
The variable cross-section venting flow path of pressure differential is formed between second detection gas port.
Preferably, the venting flow path is made of varying-arca channel, has the first opening and the second opening on the cavity,
The varying-arca channel is penetrated to the cavity by the described first opening, and is pierced by by the described second opening.
Preferably, the both ends of the varying-arca channel have the first open piping portion and position outside the cavity respectively
In the second open piping portion outside the cavity, the first detection gas port and the second detection gas port are separately positioned on described
In first open piping portion and the second open piping portion.
Preferably, the cavity includes liquid storage cylinder, inlet chamber and outlet chamber；There is the first gas port and the on the inlet chamber
Two gas ports, first gas port are connected to the first detection gas port, and second gas port is connected to the liquid storage cylinder；It is described go out
Air cavity has the 3rd gas port and the 4th gas port, and the 3rd gas port is connected to the liquid storage cylinder, and the 4th gas port is connected to institute
State the second detection gas port；The sectional area of first gas port is S1, and the sectional area of second gas port is S2, the 3rd gas port
Sectional area be S3, the sectional area of the 4th gas port is S4, wherein, S1 ≠ S2, S2 ≠ S3, S3 ≠ S4.
Preferably, the device for storing liquid further includes gas circuit component, the gas circuit component be arranged in the housing unit with
Every setting out the liquid storage cylinder, the inlet chamber and the outlet chamber.
Preferably, the gas circuit component includes separator and the first guide member.The separator has opposite upper table
The upper surface of face and lower surface, second gas port and the 3rd gas port from the separator is penetrated through to the separator
Surface；First guide member forms and air-flow is directed to second gas port from first gas port on the upper surface.
Preferably, the gas circuit component further includes the second guide member, following table of second guide member from the separator
Correspondence the second gas port position on face is extended downward into the liquid storage cylinder.
Preferably, the first detection gas port is connected with the first air pressure detection meter, and the second detection gas port is connected with the
Two air pressures detection meter.
Preferably, first gas port is connected with air inlet pipe, and the first detection gas port is arranged in the air inlet pipe, institute
The first detection gas port is stated based on connecting the first air pressure detection, the 4th gas port is connected with air outlet pipe, the second detection gas
Mouth is arranged in the air outlet pipe, and the second detection gas port is based on connecting the second air pressure detection.
Another aspect according to the present utility model, also provides a kind of lung ventilator, and the lung ventilator includes storage as described above
Liquid device.
Device for storing liquid provided by the utility model is configured in the first detection due to the venting flow path penetrated through in cavity
The variable cross-section venting flow path of pressure differential is formed between gas port and the second detection gas port, air-flow is circulated to second from the first detection gas port
During detecting gas port, energy loss is had naturally, and then forms pressure differential in order to which throughput calculates.It is apparent that this practicality
The device for storing liquid of new offer is in addition to original function, moreover it is possible to forms draught head, lung ventilator is using provided by the utility model
After device for storing liquid, the parts of draught head are formed without extra setting again, so as to reduce cost.
A series of concept of reduced forms is introduced in utility model content, this will in specific embodiment part into
One step describes in detail.The utility model content part is not meant to attempt the pass for limiting technical solution claimed
Key feature and essential features, do not mean that the protection domain for attempting to determine technical solution claimed more.
Below in conjunction with attached drawing, the advantages of describing the utility model in detail and feature.
Brief description of the drawings
The drawings below of the utility model is used to understand the utility model in this as the part of the utility model.Attached drawing
In show the embodiment and its description of the utility model, for explaining the principle of the utility model.In the accompanying drawings,
Figure 1A is the stereogram that air-flow trend is shown according to the device for storing liquid of the utility model one embodiment；
Figure 1B is the stereogram that each gas port sectional area is shown according to the device for storing liquid of the utility model one embodiment；
Fig. 1 C are the stereogram that inlet chamber is shown according to the device for storing liquid of the utility model one embodiment；
Fig. 1 D are the stereogram that outlet chamber is shown according to the device for storing liquid of the utility model one embodiment；
Fig. 2 is the top view of the device for storing liquid shown in Figure 1A；
Fig. 3 is the sectional view of the device for storing liquid cut along the line A-A in Fig. 2；
Fig. 4 is the front view of the device for storing liquid shown in Figure 1A；
Fig. 5 is the sectional view of the device for storing liquid cut along the line B-B in Fig. 4；
Fig. 6 A are according to the gas circuit component of the utility model one embodiment stereogram viewed from above；
Fig. 6 B are the stereogram observed from below according to the gas circuit component of the utility model one embodiment.
Wherein, reference numeral is
10-device for storing liquid
100-housing unit
112-upper housing component
1121-pairing guide member
114-lower housing shell component
116-sealing ring
120-liquid storage cylinder
140-inlet chamber
141-the first gas port
142-the second gas port
160-outlet chamber
161-the three gas port
162-the four gas port
200-gas circuit component
210-separator
211-upper surface
213-lower surface
215-front end face
217-rear end face
220-the first guide member
221-opening
222-enclosing part
224-directly lead portion
230-the second guide member
231-opening
232-curved portion
234-guidance part
240-anti-overflow structure part
250-prevent the structural member that backflows
300-air inlet pipe
302-air inlet pressure detection mouth
400-air outlet pipe
402-go out air pressure detection mouth
Embodiment
In the following description, there is provided substantial amounts of details is so as to thoroughly understand the utility model.However, ability
Field technique personnel will be seen that, the preferred embodiment described below for exemplarily only showing the utility model, the utility model
It may not need details as one or more and be carried out.In addition, in order to avoid obscuring with the utility model, for
Some technical characteristics well known in the art are not described in detail.
A kind of one side according to the present utility model, there is provided device for storing liquid for lung ventilator.The storage of the utility model
Liquid device compared with the prior art part advantage be：Device for storing liquid can form pressure differential in itself, be formed without extra set
The element of pressure differential.That is, device for storing liquid can be used as vapour lock element in itself.
Figure 1A -6B from all angles show the entirety of an embodiment device for storing liquid and device for storing liquid included it is each
Component or part, such as gas circuit component, upper housing component and lower housing shell component etc..Stored up to understand these components or part
Position and role in liquid device, carry out globality description, thoroughly to understand this practicality to device for storing liquid first
It is new.
As shown in Figure 1A-Fig. 5, device for storing liquid 10 includes housing unit 100.
Formed with liquid storage cylinder 120 (see Figure 1A to Fig. 1 D), inlet chamber 140 (see Fig. 1 C) and outlet chamber in housing unit 100
160 (see Fig. 1 D).Inlet chamber 140 and outlet chamber 160 can be arranged on the top of liquid storage cylinder 120.Exemplarily, device for storing liquid 10
It can include gas circuit component 200.The gas circuit component 200 is arranged in housing unit 100 with every setting out liquid storage cylinder 120, inlet chamber
140 and outlet chamber 160.Preferably, gas circuit component 200 is detachable relative to housing unit 100.Have first on inlet chamber 140
141 and second gas port 142 of gas port, the first gas port 141 are connected to the air inlet pressure detection as described below of the outside of device for storing liquid
Mouth 302, the second gas port 142 is connected to liquid storage cylinder 120.Outlet chamber 160 has the 3rd gas port 161 and the 4th gas port 162, the 3rd gas
Mouth 161 is connected to liquid storage cylinder 120, and the air pressure that goes out as described below that the 4th gas port 162 is connected to the outside of device for storing liquid detects
Mouth 402.In humidification, device for storing liquid 10 only carries out fluid by 141 and the 4th gas port 162 of the first gas port with exterior
Transmission.As shown in Figure 1B, for S1, (in order to identify conveniently, S1 is not identified in the first gas port 141 sectional area of the first gas port 141
The position at place, but identify in the position with the first gas port 141 with equal sectional area), the sectional area of the second gas port 142 is
S2, the sectional area of the 3rd gas port 161 is S3, and for S4, (in order to identify conveniently, S4 is not identified the sectional area of the 4th gas port 162
Position where 4th gas port 162, but identify in the position with the 4th gas port 162 with equal sectional area), in order to form pressure
Force difference calculates in order to throughput, and the sectional area of each gas port has following relation：S1 ≠ S2, S2 ≠ S3, S3 ≠ S4, based on so
Setting, on airflow direction, the sectional area of adjacent two gas port is unequal so that the sectional area of gas port is continually changing,
So as to which air-flow is during the first gas port 141 is circulated to the 4th gas port 162, energy loss is had naturally, and then form pressure differential.
It should be noted that：On airflow direction, the sectional area of adjacent two gas port is unequal just can be so that the sectional area of gas port be
It is continually changing, and do not required between the sectional area of non-conterminous two gas port.It means that the section of the first gas port 141
Relation between product S1 and the sectional area S3 of the 3rd gas port 161 can be S1=S3 or S1 ≠ S3；First gas port 141
Sectional area S1 and the 4th gas port 162 sectional area S4 between relation can be S1=S4 or S1 ≠ S4；Second gas
Relation between the mouth 142 sectional area S2 and sectional area S4 of the 4th gas port 162 can be S2=S4 or S2 ≠ S4.
Liquid storage cylinder 120 is used to store liquid.The liquid includes being used for humidifying into the gas in the respiratory tract of patient
Water.It can also include other materials, such as medicine of resolvability etc. in the liquid.Liquid storage cylinder 120 can have fluid injection
Mouthful, liquid is injected into liquid storage cylinder 120 by the liquid injection port.Liquid injection port can be located at liquid storage cylinder 120 top or side it is upper
Portion.Liquid storage cylinder 120 does not fill liquid under normal conditions, that is to say, that liquid storage cylinder 120 usually has highest can filling level.Most
Height can filling level refer to allow into liquid storage cylinder 120 liquid filling body highest liquid level.When liquid exceedes the liquid level, due to
The presence of one gas port 141, the second gas port 142, the 3rd gas port 161 and the 4th gas port 162, liquid may be in some cases
(such as device for storing liquid movement) is overflowed from inlet chamber 140 and outlet chamber 160.Also, the upper space of liquid storage cylinder 120 also required to
Accommodate the steam after evaporation and for steam and being sufficiently mixed for breathing gas.Then, when liquid injection port is located at liquid storage cylinder
During 120 top, scale marker preferably is set on liquid storage cylinder 120, to remind the highest of patient's liquid storage cylinder 120 can filling liquid
Position.When liquid injection port is located at the top of the side of liquid storage cylinder 120, liquid storage cylinder 120 can be limited by the position of liquid injection port
Highest can filling level.
In a preferred embodiment, housing unit 100 can include upper housing component 112, lower housing shell component 114 and
Sealing ring 116.As shown in Figure 3 and Figure 5, upper housing component 112 is detachably connectable to lower housing shell component 114.Upper housing component
112 and lower housing shell component 114 fasten when, sealing ring 116 can be sealed between upper housing component 112 and lower housing shell component 114
Gap.In this embodiment, liquid storage cylinder 120, inlet chamber 140 and outlet chamber 160 are by upper housing component 112, lower housing shell component 114
It is collectively forming with gas circuit component 200.Therefore, when opening upper housing component 112, liquid can be injected into liquid storage cylinder 120.Shell
There is body component 100 such structure to be advantageous in that, conveniently can unpick and wash equipment at any time, and after opening upper housing component 112
Liquid directly can be injected into liquid storage cylinder 120, without extraly setting liquid injection port on liquid storage cylinder 120.As shown in Figure 1A, note
Liquid mouth can be served as by the second gas port 142., can be by gas circuit group when gas circuit component 200 is detachable relative to housing unit 100
Part 200 is removed, and injects liquid in housing unit 114 directly down.In addition, it is also convenient for fabricating.Alternatively, upper shell
Latch-up structure can be provided between component 112 and lower housing shell component 114.Latch-up structure is in upper housing component 112 and lower housing shell
Component 114 locks both when snapping together, to ensure the air-tightness between them.
In addition, in the case where housing unit 100 includes above-mentioned two part, can pivotly connect between this two parts
It is connected together.Exemplarily, can be connected between upper housing component 112 and lower housing shell component 114 by hinge arrangement, with opposite
Upper housing component 112 is pivotally opened in lower housing shell component 114., can be to lower housing shell group after upper housing component 112 pivotally opens
Liquid filling body in part 114.
Include above-mentioned two part in housing unit 100 and can pivotally open upper shell relative to lower housing shell component 114
In the case of component 112, the first gas port 141 and the 4th gas port 162 are preferably provided on upper housing component 112, the first gas port
141 and the 4th specific on upper housing component 112 of gas port 162 set the position can be：First, the first gas port 141 and the 4th gas
Mouth 162 is arranged on the side wall of upper housing component 112, and can be provided on identical side wall or be arranged on difference
On side wall；2nd, the first gas port 141 and the 4th gas port 162 are arranged on the roof of upper housing component 112.It is unshowned other
In embodiment, the setting position of the first gas port 141 and the 4th gas port 162 can also use other set-up modes, no longer right herein
Various modes describe one by one.
Include above-mentioned two part in housing unit 100 and can pivotally open upper shell relative to lower housing shell component 114
In the case of component 112, be provided with upper housing component 112 be engaged with the first guide member 220 described below with formed into
The pairing guide member 1121 (as shown in Figure 3 and Figure 5) of air cavity 140 and outlet chamber 160, in order to be engaged with the first guide member 220,
Pairing guide member 1121 have with 220 same shape of the first guide member and structure, rear extended meeting is to the first guide member 220
Shape and structure are described.In unshowned embodiment, in the case where that can meet air-tightness, setting pair can not also be used
Close guide member 1121.
Gas circuit component 200 is described in detail below in conjunction with attached drawing.Gas circuit component 200 is used to be arranged in housing unit 100.
As shown in Fig. 6 A and Fig. 6 B, gas circuit component 200 can include 210 and first guide member 220 of separator, and separator 210 is with
Housing unit 114 is collectively forming liquid storage cylinder 120, and separator 210 combines the first guide member 220 and 112 common shape of upper housing component
Into inlet chamber 140 and outlet chamber 160.
Separator 210 has opposite a upper surface 211 and lower surface 213, the second gas port 142 and the 3rd gas port 161 from every
The upper surface 211 of off member 210 is penetrated through to the lower surface 213 of separator 210.As shown in figure 3, inlet chamber 140 is used for air inlet, outlet
Chamber 160 is used for outlet, and liquid storage cylinder 120 is used for liquid storage, and when being passed through gas, liquid storage cylinder 120 is acted also as air-flow from the second gas port
142 flow to the return-air chamber of the 3rd gas port 161.Second gas port 142 is used to be connected to the first gas port 141, and the 3rd gas port 161 is used to connect
Pass to the 4th gas port 162, the gas after humidification is transported to patient interface through the 4th gas port 162, corresponding to the first gas port 141
When being arranged on the structure of upper housing component 112 with the 4th gas port 162, based on the buffer action of separator 210, liquid storage cylinder can be reduced
Liquid in 120 enters the possibility of the 4th gas port 162.In order to function well as the effect of anti-overflow, in the vertical direction,
Three gas ports 161 are set higher than the second gas port 142.Illustratively, as shown in figure 5, separator 210 is flat part, the flat part is opposite
Horizontal plane is obliquely installed, and the rear end face 217 of separator 210 makes separator 210 is overall to be set in low early and high after above front end face 215
Put, the 3rd gas port 161 is compared to the second gas port 142 closer to rear end face 217.In unshowned embodiment, separator 210 can
For stair-stepping structural member, the 3rd gas port 161 is arranged on high step, and the second gas port 142 is arranged on low step.
In order to further function as the effect of anti-overflow, gas circuit component 200 further includes the anti-structural member 250 that backflows, the anti-knot that backflows
Component 250 is extended downwardly from the lower surface 213 of separator 210 corresponding to 142 position of the second gas port, is formed upper coarse and lower fine
Horn body.
First guide member 220 is formed on upper surface 211 above separator 210 every setting out inlet chamber 140 and outlet chamber
160.In order to extend circulation path of the air-flow in liquid storage cylinder 120, the second guide member 230, the second guide member 230 can also be set
It is formed on lower surface 213.Illustratively, the air-flow of inlet chamber 140 is entered along Figure 1A, Fig. 3 and Fig. 6 A from the first gas port 141
Direction of arrow a → b → c circulates, and then air-flow enters liquid storage cylinder 120, into the air-flow of liquid storage cylinder 120 from the second gas port
142 are circulated to the 3rd gas port 161 via direction of arrow c → d → e (e ') → f in Figure 1A, Fig. 3, are being not provided with the second guide member
In the case of 230, circulation of the air-flow in liquid storage cylinder 120 is only：From the second gas port 142 via direction of arrow c → k in Fig. 3
→ f is circulated to the 3rd gas port 161, and afterwards, air-flow enters outlet chamber 160, from the 3rd gas port 161 via the arrow in Figure 1A, Fig. 6 A
Head direction f → g is circulated to the 4th gas port 162.
Referring to Fig. 6 A, the first guide member 220 includes enclosing part 222 and what is be oppositely arranged directly leads portion 224, enclosing part 222
It is disposed around around the second gas port 142, directly leads portion 224 and be connected to the both ends of enclosing part 222 so that the entirety of the first guide member 220 has
Opening 221, opening 221 are used to directly or indirectly be connected to the first gas port 141, and opening 221 is preferably by dismountable side
Formula is connected to the first gas port 141, in order to dismantle and replace.Exemplarily, slot can be provided with the first gas port 141,
Opening 221 can be inserted into the slot, and so both can be connected by way of grafting.In order to ensure the air-tightness of connection,
Seal can be set between the two.In unshowned other embodiment, opening 221 can also be connected to using other modes
First gas port 141, herein no longer describes various modes one by one.Preferably, the opening direction of the first guide member 220 is as much as possible
Remote 3rd gas port 161, exemplarily, when the first gas port 141 is using such as set-up mode of Figure 1A, i.e. the first gas port 141 is set
When on the front side wall of upper housing component 112, in order to make the opening direction of the first guide member 220 as far away from the 3rd gas port
161, the first guide member 220 opening using with the 3rd gas port 161 be in diagonally be distributed by the way of set, in other unshowned realities
Apply in example, the opening of the first guide member 220 can also use other set-up modes, and no longer various modes are described one by one herein.
In actual use, the first guide member 220 can also be a simple flat part, the flat part can with upper housing component 112, every
Off member 210 forms inlet chamber 140 and outlet chamber 160.
Referring to Fig. 6 B, the second guide member 230 includes curved portion 232 and the guidance part 234 being oppositely arranged, curved portion 232
Be disposed around around the second gas port 142, guidance part 234 be connected to 232 both ends of curved portion so that the second guide member 230 it is overall have open
Mouth 231.In the anti-embodiment for backflowing structural member 250 is set, the second guide member 230 includes curved portion 232 and is oppositely arranged
Guidance part 234, curved portion 232 is disposed around around the second gas port 142 and is connected to positioned at the periphery of horn body, guidance part 234
232 both ends of curved portion have opening so that the second guide member 230 is overall.Preferably, the second guide member 230 is overall U-shaped, and second
The opening direction of guide member 230 away from the 3rd gas port 161, the second guide member 230 is overall be also not limited to U-shaped or
Ω shapes.In this way, the air-flow entered from the first gas port 141 circulates along direction of arrow a → b → c in Figure 1A, Fig. 3 and Fig. 6 A
Afterwards, air-flow is circulated to the 3rd gas port 161 from the second gas port 142 via direction of arrow c → d → e (e ') → f in Figure 1A, Fig. 3,
So as to increase circulating path of the gas in liquid storage cylinder 120 so that gas has time enough and travel distance to be connect with steam
Touch, achieve the purpose that abundant humidifying, provided for patient and more moisten comfortable gas.Second guide member 230 in actual use
Structure be not limited to it is above-mentioned, as long as the second guide member 230, which can play, extends circulation path of the air-flow in liquid storage cylinder 120 i.e.
Can.
Preferably, gas circuit component 200 further includes anti-overflow structure part 240, as shown in Fig. 5 and Fig. 6 A, anti-overflow structure part
240 upwardly extend from the upper surface 211 of separator 210.The effect of anti-overflow structure part 240 be further avoid liquid into
Enter in the outlet chamber 160 connected with the 4th gas port 162, and then reduce the possibility that liquid enters the 4th gas port 162.In order to make gas circuit
Component is simple as far as possible, and anti-overflow structure part 240 could be provided as being connected with the first guide member 220, illustratively, anti-overflow
Structural member 240 is in straight panel shape, when the 4th gas port 162 is using such as set-up mode of Fig. 1, i.e. the 4th gas port 162 is arranged on upper casing
When on the front side wall of body component 112, the front end face 215 that anti-overflow structure part 240 is relatively isolated part 210 is vertically arranged；The 4th
When gas port 162 is arranged on the rear wall of upper housing component 112, anti-overflow structure part 240 is relatively isolated the rear end face of part 210
217 are vertically arranged；In unshowned other embodiment, anti-overflow structure part 240 can also be relatively isolated the front end face of part 210
215 or rear end face 217 be obliquely installed.
It should be noted that the directional terminology related with gas circuit component involved by this paper, for example, " height ", " low ", " preceding ",
" rear ", "up" and "down" etc., are for the first direction that gas circuit component is in shown in Fig. 1.As shown in Figure 1,
The first direction i.e. gas circuit component direction residing when installing to humidifier, i.e., gas circuit component is under normal operating condition
Residing direction.Above refer to device for storing liquid towards the one side of host, conversely, back to host one side be device for storing liquid after
Face.
Device for storing liquid provided by the utility model is due on inlet chamber there is the first gas port and the second gas port, outlet chamber to have
3rd gas port and the 4th gas port, and the sectional area S2 of the sectional area S1 of the first gas port, the second gas port, the sectional area S3 of the 3rd gas port
And the 4th gas port sectional area S4 between there is following relation：S1 ≠ S2, S2 ≠ S3, S3 ≠ S4, so that gas port is cut
Area is continually changing, and air-flow has energy loss, and then formed naturally during the first gas port is circulated to the 4th gas port
Pressure differential calculates in order to throughput, it will be apparent that, device for storing liquid provided by the utility model is in addition to original function, moreover it is possible to shape
Into draught head.
In order to facilitate the draught head of the first gas port 141 of test and the 4th gas port 162 to calculate throughput, such as Figure 1A to figure
Shown in 2, the first gas port 141 is connected with air inlet pipe 300, and air inlet pressure detection mouth 302 is provided with air inlet pipe 300, and (air inlet pressure is examined
The first detection gas port can be also by surveying mouth 302), air inlet pressure detection mouth 302 can be used for connection the first air pressure detection meter (not show in figure
Go out), the 4th gas port 162 is connected with air outlet pipe 400, and air pressure detection mouth 402 is provided with out in air outlet pipe 400, and (air inlet pressure detects
Mouth 402 can also be the second detection gas port), go out air pressure detection mouth 402 and can be used for connection the second air pressure detection to count (not shown),
First air pressure detection meter and the second air pressure detection meter are mainly used for respectively to the flow rate calculation member being arranged on the host of lung ventilator
Part feeds back air inlet pressure value and goes out atmospheric pressure value, and flow calculation element is according to air inlet pressure value and goes out atmospheric pressure value and calculates ventilation flow rate.Into
Setting position of the air pressure detection mouth 302 in air inlet pipe 300 is not limited to shown in Figure 1A to Fig. 2, and air inlet pressure detection mouth 302 can
With the optional position being opened on the tube wall of air inlet pipe 300.Go out setting position of the air pressure detection mouth 402 in air outlet pipe 400
It is not limited to shown in Figure 1A to Fig. 2, goes out any position that air pressure detection mouth 402 can also be opened on the tube wall of air outlet pipe 400
Put.Common barometer can be all used since the first air pressure detects meter and the second air pressure detection meter, just it is not done herein more
Repeat.Flow calculation element can be served as by the computing module on host, and computing module can use existing air-flow calculator,
Just it is not repeated more herein.
In unshowned implementation, it is convenient to omit air inlet pipe 300 and air outlet pipe 400, and directly the first air pressure is detected and is counted
(the first gas port 141 is as the first detection gas port) is connected with the first gas port 141, directly by the second air pressure detection meter and the 4th gas port
162 connections (the 4th gas port 162 is as the second detection gas port).
In embodiment shown in Figure 1A -6B, liquid storage cylinder 120, inlet chamber 140 and outlet chamber 160 form the chamber of device for storing liquid
Body, separator 210 are enclosed with lower housing shell component 114, and separator 210 is enclosed with reference to the first guide member 220 with upper housing component 112
Close, to form venting flow path in the cavity, during ventilation, ventilation of the gas in inlet chamber 140, liquid storage cylinder 120 and outlet chamber 160
Circulation in runner, based on S1 ≠ S2, the setting of S2 ≠ S3, S3 ≠ S4, make venting flow path be configured to detect gas port first
The variable cross-section venting flow path of pressure differential is formed between the second detection gas port.
In unshowned embodiment, cavity can be a whole cavity, and cavity is interior and is not provided with gas circuit component 200 to form change
Section venting flow path, on the contrary, venting flow path is made of varying-arca channel, having the first opening on cavity, (first opening can
The first gas port 141 with reference to such as Figure 1A is set) and the second opening (the 4th gas port 162 that refers to such as Figure 1A of the second opening is set
Put), varying-arca channel is penetrated to cavity by the first opening, and is pierced by by the second opening.For the ease of setting the first detection gas
Mouth and the second detection gas port, the both ends of varying-arca channel have the open piping portion outside cavity respectively, and first detects gas port
It is arranged in the open piping portion of varying-arca channel one end, the second detection gas port is arranged on the exposed pipe of the varying-arca channel other end
In road portion, distinguish for convenience, set the open piping portion of the first detection gas port to can be described as the first open piping portion, set second
The open piping portion of detection gas port can be described as the second open piping portion.
It should be noted that the first detection gas port and the second detection gas port are not limited to above-mentioned set-up mode, do not showing
In the embodiment gone out, the first detection gas port can be located on the host of device for storing liquid upstream, and the second detection gas port can be located at storage
On the airway or mask in liquid device downstream.
Another aspect according to the present utility model, also provides a kind of lung ventilator.The lung ventilator includes storage mentioned above
Liquid device.
After lung ventilator uses device for storing liquid provided by the utility model, since device for storing liquid inherently one can form air pressure
The parts of difference, form the parts of draught head, so as to reduce cost without extra setting again at all.
The utility model is illustrated by above-described embodiment, but it is to be understood that, above-described embodiment is
For the purpose illustrated and illustrated, and it is not intended to the utility model being limited in the range of described embodiment.In addition ability
Field technique personnel are it is understood that the utility model is not limited to above-described embodiment, and teaching according to the present utility model is also
More kinds of variants and modifications can be made, these variants and modifications all fall within the utility model scope claimed with
It is interior.The scope of protection of the utility model is defined by the appended claims and its equivalent scope.
Claims (10)
- A kind of 1. device for storing liquid for lung ventilator, it is characterised in that：The device for storing liquid includes housing unit, the housing group Formed with cavity in part；Venting flow path is through with the cavity；The first detection gas port and the second detection gas port are connected with the venting flow path；Wherein, the venting flow path is configured to be formed between the described first detection gas port and the second detection gas port to press The variable cross-section venting flow path of force difference.
- 2. device for storing liquid as claimed in claim 1, it is characterised in that the venting flow path is made of varying-arca channel, described There is the first opening and the second opening on cavity, the varying-arca channel is penetrated to the cavity by the described first opening, and It is pierced by by the described second opening.
- 3. device for storing liquid as claimed in claim 2, it is characterised in that the both ends of the varying-arca channel have respectively is located at institute State the first open piping portion outside cavity and the second open piping portion outside the cavity, the first detection gas port and institute The second detection gas port is stated to be separately positioned in the first open piping portion and the second open piping portion.
- 4. device for storing liquid as claimed in claim 1, it is characterised in that the cavity includes liquid storage cylinder, inlet chamber and outlet chamber；There is the first gas port and the second gas port, first gas port is connected to the first detection gas port, institute on the inlet chamber State the second gas port and be connected to the liquid storage cylinder；The outlet chamber has the 3rd gas port and the 4th gas port, and the 3rd gas port is connected to the liquid storage cylinder, the 4th gas Mouth is connected to the second detection gas port；The sectional area of first gas port is S1, and the sectional area of second gas port is S2, and the sectional area of the 3rd gas port is S3, the sectional area of the 4th gas port is S4, wherein, S1 ≠ S2, S2 ≠ S3, S3 ≠ S4.
- 5. device for storing liquid as claimed in claim 4, it is characterised in that the device for storing liquid further includes gas circuit component, the gas Road component is arranged in the housing unit with every setting out the liquid storage cylinder, the inlet chamber and the outlet chamber.
- 6. device for storing liquid as claimed in claim 5, it is characterised in that the gas circuit component includes：Separator, the separator have opposite upper and lower surface, second gas port and the 3rd gas port from institute The upper surface for stating separator is penetrated through to the lower surface of the separator；AndFirst guide member, first guide member are formed on the upper surface, and air-flow is directed to institute from first gas port State the second gas port.
- 7. device for storing liquid as claimed in claim 6, it is characterised in that the gas circuit component further includes the second guide member, described Second guide member is extended downward into the liquid storage cylinder from correspondence the second gas port position on the lower surface of the separator.
- 8. such as the device for storing liquid any one of claim 1-7, it is characterised in that the first detection gas port is connected with the One air pressure detection meter, the second detection gas port are connected with the second air pressure detection meter.
- 9. such as the device for storing liquid any one of claim 4-7, it is characterised in that first gas port is connected with air inlet Pipe, the first detection gas port are arranged in the air inlet pipe, and described first detects gas port based on connecting the first air pressure detection, 4th gas port is connected with air outlet pipe, and the second detection gas port is arranged in the air outlet pipe, the second detection gas port Based on connecting the second air pressure detection.
- 10. a kind of lung ventilator, it is characterised in that the lung ventilator includes the liquid storage dress described in any one in claim 1-9 Put.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720286682.6U CN207286425U (en) | 2017-03-23 | 2017-03-23 | Device for storing liquid and lung ventilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720286682.6U CN207286425U (en) | 2017-03-23 | 2017-03-23 | Device for storing liquid and lung ventilator |
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| Publication Number | Publication Date |
|---|---|
| CN207286425U true CN207286425U (en) | 2018-05-01 |
Family
ID=62270738
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720286682.6U Active CN207286425U (en) | 2017-03-23 | 2017-03-23 | Device for storing liquid and lung ventilator |
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| Country | Link |
|---|---|
| CN (1) | CN207286425U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107469207A (en) * | 2017-03-23 | 2017-12-15 | 北京怡和嘉业医疗科技股份有限公司 | Device for storing liquid and lung ventilator |
-
2017
- 2017-03-23 CN CN201720286682.6U patent/CN207286425U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107469207A (en) * | 2017-03-23 | 2017-12-15 | 北京怡和嘉业医疗科技股份有限公司 | Device for storing liquid and lung ventilator |
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