CN206860396U - A kind of negative pressure control apparatus - Google Patents
A kind of negative pressure control apparatus Download PDFInfo
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- CN206860396U CN206860396U CN201720801924.0U CN201720801924U CN206860396U CN 206860396 U CN206860396 U CN 206860396U CN 201720801924 U CN201720801924 U CN 201720801924U CN 206860396 U CN206860396 U CN 206860396U
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- negative pressure
- port
- control apparatus
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- magnetic valve
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Abstract
The utility model provides a kind of negative pressure control apparatus, is related to field of medical technology.A kind of negative pressure control apparatus, including negative pressure source, regulation center, negative pressure source are used to provide negative pressure for regulation center.Regulation center includes first port, second port and the control valve for connecting or disconnecting first port and second port.Negative pressure source is connected with first port.Control valve control first port and second port connect or disconnection, to reach the purpose whether control negative pressure source provides to second port negative pressure.By being turned on and off for control valve, the negative pressure source in the negative pressure control apparatus can be effectively protected.
Description
Technical field
Field of medical technology is the utility model is related to, in particular to a kind of negative pressure control apparatus.
Background technology
The attraction system of medical center as negative pressure source, is passed through by the vacuum pump assembly at central suction station (also referred to as negative pressure station)
The suction of vavuum pump makes attraction system pipeline reach required negative pressure value.Attraction system pipeline is in operating room, rescue room, therapeutic room
Produce suction with terminal (such as attractor, suction bottle) place in each ward, be mainly used in absorbing phlegm in patient body, blood, purulence and
Other pollutants.During the design of medical clean room, construction, engineering installation type selecting, debugging etc., frequently encounter negative pressure or
The HIV inspections of the operating room, isolation ICU separate rooms, isolation ward, biology laboratory, Pathology Lab, clinical laboratory of positive/negative-pressure switching
Survey, antibioticses need to do the toilet of positive/negative-pressure conversion or permanent negative-pressure design with liquid formulation room etc. because of protection object conversion.
For negative pressure constant between this space-like, with adjacent room, stable barometric gradient or air-flow infiltration direction be ensure doctors and patients' safety,
Avoid the key of cross-infection.As a rule, for the space of different protection objects, its negative pressure requirements also can be different.At present,
Each terminal that each medical center is mainly unified for hospital by negative pressure station provides negative pressure, and each terminal can not be voluntarily to attraction system pipe
Road progress pressure size, negative pressure time etc. are controlled, and are brought inconvenience to many terminal users.
Utility model content
The purpose of this utility model is to provide a kind of negative pressure control apparatus, and it can control the negative pressure source to be by control valve
It is no to provide negative pressure for second port.
What embodiment of the present utility model was realized in：
A kind of negative pressure control apparatus, including negative pressure source, regulation center, negative pressure source are used to provide negative pressure for regulation center.Adjust
Section center includes first port, second port and the control valve for connecting or disconnecting first port and second port.It is negative
Potential source is connected with first port.
Preferably, regulation center also includes controller.Controller electrically connects with control valve, and controller is used to control control valve
Be turned on and off.
Preferably, control valve includes magnetic valve.
Preferably, magnetic valve includes the first magnetic valve, second solenoid valve, the 3rd magnetic valve.First magnetic valve, the second electromagnetism
Valve, the 3rd magnetic valve are electrically connected with the controller.
Preferably, negative pressure source provides the first negative pressure by the first magnetic valve, and negative pressure source provides second by second solenoid valve
Negative pressure, negative pressure source provide the 3rd negative pressure by the 3rd magnetic valve.First negative pressure, the second negative pressure, the 3rd negative pressure differ.
Preferably, controller controls the first magnetic valve to be turned on and off after at interval of the first preset time.
Preferably, controller controls second solenoid valve to be turned on and off after at interval of the second preset time.Controller exists
The 3rd magnetic valve is controlled to be turned on and off at interval of after the 3rd preset time.
Preferably, negative pressure control apparatus also includes user terminal.Second port is connected with user terminal, and user terminal includes
One or more of operating room, isolation ward, laboratory, sensing chamber.
A kind of negative pressure control apparatus, including negative pressure source, regulation center.Regulation center include first port, second port with
And for connecting or disconnecting the control valve of first port and second port.Negative pressure source is connected with first port.Negative pressure source includes
Vacuum pump assembly and vacuum tank.First port is connected with vacuum tank, and vacuum pump assembly is used for for vacuum tank, regulation center
Negative pressure is provided.
Preferably, vacuum pump assembly includes vavuum pump, controller.Vacuum tank includes vacuum tank, and vacuum tank, which is provided with, to be used for
Detect the pressure detecting instrument of vacuum pressure inside the tank.Pressure value is fed back to controller by pressure detecting instrument, and controller is configured as root
Vavuum pump is turned on and off according to pressure value.First port is connected with vacuum tank.
The beneficial effect of the utility model embodiment is：
The utility model embodiment provides a kind of negative pressure control apparatus, and the negative pressure control apparatus includes negative pressure source and tune
Section center, negative pressure source is used to provide negative pressure to regulation center, to meet the needs of subnormal ambient needed for regulation center.Long term frequent
The service life of negative pressure source can be influenceed by being turned off and on negative pressure source, therefore, using regulation center in the utility model embodiment
Control valve control first port and second port connect or disconnection, to reach whether control negative pressure source provides to second port
The purpose of negative pressure.By being turned on and off for control valve, the negative pressure source in the negative pressure control apparatus can be effectively protected.It is negative
Potential source is connected with first port, is provided negative pressure for second port by first port, is easy between first port and second port
Control valve cut off or recover the offer of second port negative pressure at any time.
Brief description of the drawings
, below will be to required use in embodiment in order to illustrate more clearly of the technical scheme of the utility model embodiment
Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by
Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also
To obtain other related accompanying drawings according to these accompanying drawings.
Fig. 1 is the structural representation for the negative pressure control apparatus that the utility model embodiment 1 provides；
Fig. 2 is the attachment structure schematic diagram of the controller that the utility model embodiment 1 provides and control valve；
Fig. 3 is the structural representation for the negative pressure source that the utility model embodiment 1 provides；
Fig. 4 is that the utility model embodiment 2 provides control valve and the attachment structure schematic diagram of controller.
Icon：100- negative pressure control apparatus；200- negative pressure sources；The dirt collecting tanks of 202- first；The dirt collecting tanks of 204- second；206-
One vacuum tank；The vacuum tanks of 208- second；210- first filters；The filters of 212- second；The vavuum pumps of 214- first；216- second
Vavuum pump；218- gas-liquid separators；The user terminals of 220- first；222- second user terminals；300- adjusts center；302- first
Port；304- second ports；306- control valves；308- controllers；The magnetic valves of 310- first；312- second solenoid valves；314-
Three magnetic valves；The pipelines of 404- first；406- second pipes；The pipelines of 408- the 3rd；The magnetic valves of 410- first；The electromagnetism of 412- second
Valve；The magnetic valves of 414- the 3rd.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, rather than whole embodiments.Generally here described in accompanying drawing and
The component of the utility model embodiment shown can be configured to arrange and design with a variety of.
Therefore, the detailed description of the embodiment of the present utility model to providing in the accompanying drawings is not intended to limit requirement below
The scope of the utility model of protection, but it is merely representative of selected embodiment of the present utility model.Based in the utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all
Belong to the scope of the utility model protection.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent accompanying drawing in individual accompanying drawing.
, it is necessary to explanation in the description of the utility model embodiment, if occur term " on ", the side of the instruction such as " interior "
Position or position relationship be based on orientation shown in the drawings or position relationship, or the utility model product using when usually put
Orientation or position relationship, be for only for ease of description the utility model and simplify and describe, rather than instruction or imply signified
Device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that new to this practicality
The limitation of type.In addition, term " first ", " second ", " the 3rd " etc. are only used for distinguishing description, and it is not intended that instruction or hint
Relative importance.
In the description of the utility model embodiment, it is also necessary to explanation, unless otherwise clearly defined and limited, if
There is term " setting ", " installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or
It is detachably connected, or is integrally connected；Can be mechanical connection or electrical connection；Can be joined directly together, can also lead to
Cross intermediary to be indirectly connected, can be the connection of two element internals.For the ordinary skill in the art, can be with
Concrete condition understands concrete meaning of the above-mentioned term in the utility model.
Embodiment 1
Fig. 1 is refer to, Fig. 1 show the structural representation of the negative pressure control apparatus 100 of the present embodiment offer.The present embodiment
A kind of negative pressure control apparatus 100 is provided, it includes negative pressure source 200 and regulation center 300, and negative pressure source 200 is used for in regulation
The heart 300 provides negative pressure, so that regulation center 300 meets the subnormal ambient needed for it.
Regulation center 300 includes first port 302, second port 304, and for connecting or disconnecting first port
302 and the control valve 306 of second port 304.Wherein, first port 302 is connected with negative pressure source 200, and negative pressure source 200 passes through first
Port 302 is connected with second port 304 to provide negative pressure to second port 304.Control valve 306 is located at first port 302 and
Between Two-port netwerk 304, it is easy to control valve 306 to control the subnormal ambient of second port 304.When 306 Open valve of control valve, bear
Potential source 200 can provide negative pressure to second port 304；When control valve 306 closes valve, negative pressure source 200 can not be to second port
304 continue to provide negative pressure.In actual use, first port 302 and second port 304 can be pipeline, wherein the second end
Mouth 304 can connect specific user terminal, such as operating room, isolation ward, laboratory, sensing chamber.
It should be noted that the valve of control valve 306 can be directly manually opened or closed, operated for the ease of user,
The present embodiment is additionally provided with controller 308 in regulation center 300.Controller 308 electrically connects with control valve 306, controller 308
For controlling being turned on and off for control valve 306.Wherein, control valve 306 can simply select magnetic valve, then controller 308
It is electrically connected with the solenoid valve being turned on and off for controllable valve.Certainly, control valve 306 can also select non-magnetic valve, such as lock
Valve, being turned on and off for flashboard can be controlled by the operating member of electric control using operating member by being set on gate valve.
Fig. 2 is refer to, Fig. 2 show the attachment structure schematic diagram of controller 308 and control valve 306.In the present embodiment compared with
Magnetic valve has been selected goodly as control valve 306, to simplify the operation of user and reduce equipment installation cost.Control valve 306
Including the first magnetic valve 310, second solenoid valve 312, the 3rd magnetic valve 314.First magnetic valve 310, second solenoid valve 312,
Three magnetic valves 314 electrically connect with controller 308.
It is preferred that the first magnetic valve 310, second solenoid valve 312, the 3rd magnetic valve 314 have first passage (in figure respectively
Be not shown), second channel (not shown), third channel (not shown).And first magnetic valve 310, second solenoid valve
312nd, the 3rd magnetic valve 314 is connected with second port 304.When first passage, second channel, the size of third channel are identical,
Negative pressure source 200 can be respectively that second port 304 provides by the first magnetic valve 310, second solenoid valve 312, the 3rd magnetic valve 314
Size identical negative pressure；When first passage, second channel, the size of third channel differ, negative pressure source 200 can pass through respectively
One magnetic valve 310, second solenoid valve 312, the 3rd magnetic valve 314 are that second port 304 provides the negative pressure that size differs, this reality
Apply the scheme that preferred first passage, second channel, the size of third channel differ in example.
In the present embodiment, controller 308, which is provided with, to be respectively used to control the first magnetic valve 310, second solenoid valve 312, the
The first electric switch, the second electric switch, the 3rd electric switch of three magnetic valves 314, the first electric switch, the second electric switch, the 3rd establish by cable
Pass can be powered simultaneously, can also arbitrarily select one or two energization.When the first electric switch is powered, the first magnetic valve 310
Open, negative pressure source 200 is that second port 304 provides the first negative pressure；When the second electric switch is powered, second solenoid valve 312 is opened,
Negative pressure source 200 is that second port 304 provides the second negative pressure；When the 3rd electric switch is powered, the 3rd magnetic valve 314 is opened, negative pressure
Source 200 is that the offer the 3rd of second port 304 is negative.Therefore, can select to need according to the particular condition in use of second port 304
The magnetic valve of unlatching.Meanwhile in order to meet bigger negative pressure requirements, two or three magnetic valves can be opened simultaneously.
It is to be appreciated that in other embodiment of the present utility model, in order to meet a variety of different negative pressure demands, control valve
306 can also include the magnetic valve of other quantity, such as two, four, five, seven etc..
It is preferred that in order to help each user terminal to realize the vacuum cavitations more automated, controller 308 may be configured as often
The first magnetic valve 310 is controlled to be turned on and off after being spaced the first preset time；At interval of the electricity of control second after the second preset time
The valve of magnetic 312 is turned on and off；The 3rd magnetic valve 314 is controlled to be turned on and off at interval of after the 3rd preset time.For example, first is pre-
If the time is 60 seconds, the second preset time is 80 seconds, and the 3rd preset time is 100 seconds.In use, it will first be controlled on controller 308
Make the first electric switch, the second electric switch, the master switch of the 3rd electric switch to switch on power, then often pass through a preset time, it is each
Magnetic valve, which will pass through, once to be opened or closed, so as to meet the needs of user terminal substitutes for negative pressure value.Wherein, user terminal can be with
It is one or more in operating room, isolation ward, laboratory, sensing chamber, according to different needs, when setting different default
Between, choose different magnetic valves.
Fig. 3 is refer to, Fig. 3 show the structural representation of negative pressure source 200.The negative pressure source 200 provided in the present embodiment is led
To include electrical control cubicles (not shown), the first dirt collecting tank 202, the second dirt collecting tank 204, the first vacuum tank 206, the second vacuum tank
208th, first filter 210, the second filter 212, the first vavuum pump 214, the second vavuum pump 216, gas-liquid separator 218.Compared with
Goodly, the first user terminal 220, second user terminal 222 are also associated with the present embodiment on negative pressure source 200.First user is whole
End 220, operating room, isolation ward, laboratory, sensing chamber etc. can be selected in second user terminal 222 needs the use of negative-pressure operation environment
Family.
First user terminal 220, second user terminal 222 are connected with regulation center 300, specifically, with second port
304 connections.The first port 302 at regulation center 300 is connected with the first dirt collecting tank 202, and the first dirt collecting tank 202 will be from user terminal
Waste gas, the waste liquid of sucking-off are collected, and the first dirt collecting tank 202 is connected with the second dirt collecting tank 204, and the second dirt collecting tank 204 can enter one
Step is by waste gas, waste liquid is discharged, handles.
Vacuum tank is connected with vavuum pump by filter, and vavuum pump vacuumizes to vacuum tank, vacuum tank is able to maintain that one
Determine the pressure of negative pressure value, and continuously provide suction to user terminal to meet negative pressure requirements.First vacuum tank 206 and
Two vacuum tanks 208 can simultaneously using or select a use, be easy to provide different subnormal ambients for user terminal, both be vacuum hold
A part for device.Two vacuum tanks can also further set sewage draining exit, ensure in vacuum tank there is relatively stable negative pressure ring
Border.It is preferred that the pressure detecting for detecting vacuum pressure inside the tank can be set in the first vacuum tank 206 and the second vacuum tank 208
Instrument.Pressure detecting instrument feeds back to pressure value control centre's (can be electrical control cubicles) of vavuum pump, and control centre is according to receiving
Pressure value be turned on and off vavuum pump, such as negative pressure value is excessive, closes vavuum pump, negative pressure value is too small, opens vavuum pump.
The filter 212 of first filter 210 and second can further select sterilizing filter, be easy to follow-up workshop section to useless
The processing of gas, waste liquid.The filter 212 of first filter 210 and second is simultaneously operable, and can also select one of work,
Another is standby.
First vavuum pump 214 is connected with the second vavuum pump 216 with gas-liquid separator 218, and gas-liquid separator 218 can enter one
Step discharges waste gas (made above bacteria removing, can be directly discharged in air), can be further by the discharging of waste liquid of collection
To central treating station.Meanwhile first vavuum pump 214 and the second vavuum pump 216 select water-ring vacuum pump, therefore gas-liquid separator
218 also provide recirculated water for two vavuum pumps.First vavuum pump 214 and the second vavuum pump 216 can simultaneously using or select a use,
Both are a part for vacuum pump assembly.
Workflow：With gas end points-dirt collecting tank-vacuum tank-sterilizer-vavuum pump-moisture trap-exhaust gas evacuation, dirt
Liquid centralized collection delivers to Sewage Disposal.
The operation principle of negative pressure control apparatus 100 is：
Negative pressure source 200 is opened, and is at providing negative pressure state, is i.e. is located in the first vacuum tank 206 and the second vacuum tank 208
In negative pressure state.First vacuum tank 206 and the second vacuum tank 208 are connected with first port 302, second port 304 and first
User terminal 220, second user terminal 222 connect, then negative pressure source 200 starts as the first user terminal 220, second user terminal
222 provide negative pressure.First user terminal 220, second user terminal 222 in use, can pass through the first magnetic valve
310th, second solenoid valve 312, the 3rd magnetic valve 314 adjust its subnormal ambient used.First vavuum pump 214 and the second vavuum pump
216 can avoid frequently opening and closing, and user only passes through the first magnetic valve 310, second solenoid valve 312, the 3rd magnetic valve 314
Regulation can be achieved to automatically adjust required negative pressure.
Embodiment 2
Fig. 4 is refer to, Fig. 4 show the attachment structure schematic diagram of control valve 306 and controller 308.The present embodiment provides
A kind of negative pressure control apparatus (not shown), the difference of itself and negative pressure control apparatus 100 essentially consist in, control valve 306 and
The connected mode of Two-port netwerk 304 is different.
In the present embodiment, second port 304 includes the first pipeline 404, second pipe 406, the 3rd pipeline 408, the first pipe
Road 404, second pipe 406, the 3rd pipeline 408 may be selected to connect from different user terminals, such as operating room, isolation ICU
Separate room, isolation ward, biology laboratory, Pathology Lab, the HIV detections of clinical laboratory, antibioticses are with liquid formulation room etc..
Control valve 306 includes the first magnetic valve 410, second solenoid valve 412, the 3rd magnetic valve 414.First magnetic valve 410,
Second solenoid valve 412, the 3rd magnetic valve 414 electrically connect with controller 308.It is preferred that the first magnetic valve 410, the second electromagnetism
Valve 412, the 3rd magnetic valve 414 have first passage (not shown), second channel (not shown), third channel respectively
(not shown).And first magnetic valve 410, second solenoid valve 412, the 3rd magnetic valve 414 respectively with the first pipeline 404,
Two pipelines 406, the 3rd pipeline 408 are connected.First passage, second channel, the size of third channel differ, and negative pressure source 200 can
It is respectively the first pipeline 404, second pipe 406, the by the first magnetic valve 410, second solenoid valve 412, the 3rd magnetic valve 414
Three pipelines 408 provide the negative pressure that size differs so that the negative pressure control apparatus that the present embodiment provides can meet multiple simultaneously
The use demand of different user terminals.
Preferred embodiment of the present utility model is these are only, is not limited to the utility model, for this area
Technical staff for, the utility model can have various modifications and variations.It is all within the spirit and principles of the utility model,
Any modification, equivalent substitution and improvements made etc., should be included within the scope of protection of the utility model.
Claims (10)
1. a kind of negative pressure control apparatus, it is characterised in that including negative pressure source, regulation center, it is the tune that the negative pressure source, which is used for,
Section center provides negative pressure, and the regulation center includes first port, second port and for connecting or disconnecting described first
Port and the control valve of the second port, the negative pressure source are connected with the first port.
2. negative pressure control apparatus according to claim 1, it is characterised in that the regulation center also includes controller, institute
State controller to electrically connect with the control valve, the controller is used to control being turned on and off for the control valve.
3. negative pressure control apparatus according to claim 2, it is characterised in that the control valve includes magnetic valve.
4. negative pressure control apparatus according to claim 3, it is characterised in that the magnetic valve includes the first magnetic valve, the
Two magnetic valves, the 3rd magnetic valve, first magnetic valve, the second solenoid valve, the 3rd magnetic valve with the control
Device electrically connects.
5. negative pressure control apparatus according to claim 4, it is characterised in that the negative pressure source passes through first magnetic valve
The first negative pressure is provided, the negative pressure source provides the second negative pressure by the second solenoid valve, and the negative pressure source passes through the described 3rd
Magnetic valve provides the 3rd negative pressure, and first negative pressure, second negative pressure, the 3rd negative pressure differ.
6. negative pressure control apparatus according to claim 4, it is characterised in that the controller at interval of first when presetting
Between after control first magnetic valve be turned on and off.
7. negative pressure control apparatus according to claim 4, it is characterised in that the controller at interval of second when presetting
Between after the control second solenoid valve be turned on and off；The controller controls the described 3rd after at interval of the 3rd preset time
Magnetic valve is turned on and off.
8. according to the negative pressure control apparatus described in any one of claim 1~7, it is characterised in that the negative pressure control apparatus is also
Including user terminal, the second port is connected with the user terminal, and the user terminal includes operating room, isolation ward, reality
Test one or more of room, sensing chamber.
9. a kind of negative pressure control apparatus, it is characterised in that including negative pressure source, regulation center, the regulation center includes first end
Mouth, second port and the control valve for connecting or disconnecting the first port and the second port, the negative pressure source
It is connected with the first port；The negative pressure source includes vacuum pump assembly and vacuum tank, the first port and the vacuum
Container is connected, and the vacuum pump assembly is used to provide negative pressure for the vacuum tank, the regulation center.
10. negative pressure control apparatus according to claim 9, the vacuum pump assembly includes vavuum pump, controller, described true
Empty container includes vacuum tank, and the vacuum tank is provided with the pressure detecting instrument for being used for detecting the vacuum pressure inside the tank, the pressure
Pressure value is fed back to controller by detector, and the controller is configured as being turned on and off the vacuum according to the pressure value
Pump, the first port are connected with the vacuum tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720801924.0U CN206860396U (en) | 2017-07-04 | 2017-07-04 | A kind of negative pressure control apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720801924.0U CN206860396U (en) | 2017-07-04 | 2017-07-04 | A kind of negative pressure control apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206860396U true CN206860396U (en) | 2018-01-09 |
Family
ID=60829483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720801924.0U Expired - Fee Related CN206860396U (en) | 2017-07-04 | 2017-07-04 | A kind of negative pressure control apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206860396U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131585A (en) * | 2019-05-31 | 2019-08-16 | 江苏仅一联合智造有限公司 | A kind of milk powder filling production equipment big flow multiple-limb negative pressure control apparatus |
| CN111593936A (en) * | 2020-05-22 | 2020-08-28 | 重庆东登科技有限公司 | Isolation system of emergency rescue mobile hospital |
-
2017
- 2017-07-04 CN CN201720801924.0U patent/CN206860396U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131585A (en) * | 2019-05-31 | 2019-08-16 | 江苏仅一联合智造有限公司 | A kind of milk powder filling production equipment big flow multiple-limb negative pressure control apparatus |
| CN111593936A (en) * | 2020-05-22 | 2020-08-28 | 重庆东登科技有限公司 | Isolation system of emergency rescue mobile hospital |
| CN111593936B (en) * | 2020-05-22 | 2021-02-23 | 重庆东登科技有限公司 | Isolation system of emergency rescue mobile hospital |
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Granted publication date: 20180109 Termination date: 20210704 |