CN207445262U - A kind of dry type drain valve and negative pressure drainage device - Google Patents
A kind of dry type drain valve and negative pressure drainage device Download PDFInfo
- Publication number
- CN207445262U CN207445262U CN201720437991.9U CN201720437991U CN207445262U CN 207445262 U CN207445262 U CN 207445262U CN 201720437991 U CN201720437991 U CN 201720437991U CN 207445262 U CN207445262 U CN 207445262U
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- CN
- China
- Prior art keywords
- dry type
- type drain
- drain valve
- negative pressure
- valve
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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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of dry type drain valve and negative pressure drainage devices.The dry type drain valve includes a valve body, which has the air inlet and exhaust outlet of connection valve chamber；There is the reaction diaphragm that can be deformed according to gas pressure in the valve chamber；Close to the inner surface smooth structure with a narrow upper and lower width of air inlet one end in the valve chamber.The negative pressure drainage device includes the fluid collection chamber being connected by drainage tube with patient's pleural cavity；The negative pressure drainage device is provided with dry type drain valve as described above on the shell of fluid collection chamber；It is connected in the air inlet of the dry type drain valve and fluid collection chamber, exhaust outlet is towards outside shell.The device can make patient more easily discharge residual gas in pleural cavity, will not cause pain during row pressure, simultaneously because eliminating the sealing structure for water of original negative pressure drainage device, it helps reduce the volume of negative pressure drainage device.It more can be quick to use without water source.Urgent rescue when suitable war preparedness, first aid.With important military affairs, disaster relief meaning.
Description
Technical field
The utility model is related to a kind of check valve and the check valve in the application of medical instruments field, particularly a kind of dry type
Drain valve and negative pressure drainage device.
Background technology
Human body pleural cavity is a closed chamber, is in negative pressure state under health condition, Thoracic Organs is made to keep normal work(
Energy.The a variety of causes such as every wound, traffic accident, compound thoracic injury and pneumothorax operation cause pleural cavity lesion ruptures, will lead
Gas or liquid is caused to enter pleural cavity, original negative pressure is caused to become positive pressure, atelectasis, heart is caused to indulge diaphragm displacement and trigger the heart
Lung failure.It needs pleural cavity to be made to recover original the gas into pleural cavity or liquid drain by drainage system during treatment
Negative pressure state and cardiopulmonary normal function.
For this purpose, someone devises a kind of enclosed negative pressure drainage water sealing bottle.It includes fluid collection chamber, water seal cavity, pressure regulating cavity.It is described
Fluid collection chamber on connection by drainage tube, which is connected with pleural cavity.The fluid collection chamber be also connected with by connecting tube one fall U
One end of type pipe, the other end of the U-tube are inserted into water seal cavity, are inserted into the depth of the insertion liquid of the U-tube of liquid in water seal cavity
Usually h.It backflows in order to prevent, which can set the height that must try one's best.
But we have been found that in actual use, to ensure that water seal cannot be kept after certain reason generates suck-back, be led to
Often h can be set higher, once so suck-back still has the ability to keep water seal state.But also therefore, add patient's discharge
The pressure of gas is larger, and patient is since comparison itself is weak, itself is difficult that mode with strong mode or deliberately goes to arrange
Go out these gases, thus will result in and recover slow situation.Even if cough reluctantly, also easily causes severe pain, but also can
It can cause other bad problems.
Utility model content
The purpose of this utility model is to provide a kind of dry type drain valve and negative pressure drainage device, for the above-mentioned prior art
Existing deficiency, the device can make patient more easily discharge residual gas, will not cause pain during row pressure, while by
In the sealing structure for water for eliminating original negative pressure drainage device, it helps reduce the volume of negative pressure drainage device.And on using
Faster convenience is suitable for war preparedness, first aid etc. and lacks urgent rescue under the occasion at water source.
To achieve these goals, technical solution is used by the utility model：
A kind of dry type drain valve, it is characterised in that：It includes a valve body, which has air inlet and the row of connection valve chamber
Gas port；There is the reaction diaphragm that can be deformed according to gas pressure in the valve chamber；Close to the inside table of air inlet one end in the valve chamber
Face smooth structure with a narrow upper and lower width.
The dry type drain valve, it is characterised in that：On the inside of exhaust outlet one end it is turbine slot pattern in the valve chamber
Pyramidal projections.
Its advantage contributes to the steady discharge exhaust outlet of gas and makes gas stepless action on reaction diaphragm.
The dry type drain valve, it is characterised in that：The outer diameter of the reaction diaphragm is less than the internal diameter of valve chamber.
The dry type drain valve, it is characterised in that：The valve body is combined by two half-unit to be formed, and is had in one of half portion
There is air inlet, there is exhaust outlet in another half portion.
The dry type drain valve, it is characterised in that：The pyramidal projections of the turbine slot pattern are in diverging shape by several
The turbine wheel of distribution is formed；Height, both ends are low among every turbine wheel, and tip height is 0.5mm ~ 2.5mm, outer end face and water
The angle of plane is 30 degree ~ 70 degree, and inner face is from top to exhaust outlet direction arc-shaped transition.
The dry type drain valve, it is characterised in that：The reaction diaphragm is made of flexible material, and hardness is from Shao's formula 5
~ 75 degree of degree, thickness are from 0.5mm ~ 2.5mm.
The dry type drain valve, it is characterised in that：The reaction diaphragm is made of rubber or silica type material.
A kind of negative pressure drainage device, it includes the fluid collection chamber being connected by drainage tube with patient's pleural cavity；It is characterized in that：
The negative pressure drainage device is provided with dry type drain valve as described above on the shell of fluid collection chamber；The air inlet of the dry type drain valve
It is connected in fluid collection chamber, exhaust outlet is towards outside shell.
With the above structure, the utility model is compared to the prior art advantageously：
1st, the utility model use is in negative pressure drainage device, since the pressure of fluid collection chamber is led to outside in a state of use
Often have " pressure differential ", therefore, in valve chamber have can according to gas pressure deform reaction diaphragm can pass through valve chamber on the inside of
Surface smooth structure with a narrow upper and lower width（Such as：Smooth inverted cone-shaped structure）To be closed or opened air inlet.When patient discharges
During fluid collection chamber gas, this usual process is independently to occur, and reaction diaphragm is gone out logical by Light deformation, formation intracavity gas
Road is oriented to from inside to outside when " pressure differential " is, gas is just gone out by drainage at this time；When " pressure differential " is reversed, reaction diaphragm exists
Momentary recovery is smooth, and the gas passage established originally is closed, allows extraneous gas that cannot enter intracavitary.The device passes through sense film
The activity of piece completes unidirectional drainage purpose with valve body structure.It needs to overcome the side that hydraulic pressure is exhausted in water seal cavity with original
Formula is compared, more laborsaving, mitigates pain during patient's exhaust.
2nd, the utility model use can be directly installed on negative pressure drainage device in fluid collection chamber in negative pressure drainage device
On shell, therefore the water seal cavity of original negative pressure drainage device can save, be conducive to the miniaturization of device.More mainly it is beneficial to take
Band and quick rescue, use when under battlefield surroundings, ambulatory environment without water source.
Description of the drawings
Fig. 1 is the structure diagram of the utility model dry type drain valve.
Fig. 2 is the sectional view of upper valve body in the utility model.
The sectional view of lower valve body in the utility model of Fig. 3 rooms.
Fig. 4 is the use state diagram of the utility model（Connected state）.
Fig. 5 is the use state diagram of the utility model（Blocking state）.
Specific embodiment
- 3 are please referred to Fig.1, the utility model discloses a kind of dry type drain valves.As shown in the figure：It includes a valve body 1, should
Valve body 1 has the connection air inlet 11 of valve chamber and exhaust outlet 12；There is the sense film that can be deformed according to gas pressure in the valve chamber
Piece 2；Close to the inner surface smooth structure 112 with a narrow upper and lower width of 11 one end of air inlet in the valve chamber.The hole of the air inlet 11
Footpath 111 is usually 3mm or so.
When the utility model is used, valve can be passed through according to the reaction diaphragm 2 that gas pressure deforms by having in valve chamber
Intracavitary side surface smooth structure 112 with a narrow upper and lower width（Such as：Smooth inverted cone-shaped structure or bowl structure）With closing or
Open air inlet.It is the pyramidal projections of turbine slot pattern on the inside of 12 one end of exhaust outlet as preferred structure, in the valve chamber
13.Its advantage contributes to the steady discharge exhaust outlet of gas and makes gas stepless action on reaction diaphragm 2.
As preferred structure, the pyramidal projections 13 of the turbine slot pattern are by several turbine wheel structures in diverging shape distribution
Into；Height, both ends are low among every turbine wheel, and tip height 131 is the angle of 0.5mm ~ 2.5mm, outer end face and horizontal plane
132 be 30 degree ~ 70 degree, and inner face 133 is from top to 12 direction arc-shaped transition of exhaust outlet.
The aperture 111 of air inlet 11 coordinates the structure and parameter of the pyramidal projections 13 of above-mentioned turbine slot pattern to be cooperation sensing
Diaphragm 2 complete air flue open and closing function.
In the utility model, which is made of flexible material, and hardness is to be from 5 degree ~ 75 degree of Shao's formula, thickness
From 0.5mm ~ 2.5mm.The reaction diaphragm 2 is made of rubber or silica type material.
In the utility model, the outer diameter of the reaction diaphragm 2 is less than the internal diameter of valve chamber.
As preferred structure, which is combined by two half-unit is formed, and has air inlet 11 in one of half portion,
There is exhaust outlet 12 in another half portion.
The invention also discloses a kind of negative pressure drainage devices, it includes what is be connected by drainage tube with patient's pleural cavity
Fluid collection chamber；The negative pressure drainage device is provided with dry type drain valve as described above on the shell of fluid collection chamber；The dry type drain valve
Air inlet 11 and fluid collection chamber in connect, exhaust outlet 12 is towards outside shell.
When the utility model is used, due in fluid collection chamber in a state of use usually with there is " pressure differential " outside chamber,
Having in valve chamber can be vented according to structure of the reaction diaphragm 2 that gas pressure deforms usually in a manner of Light deformation in valve chamber
Air flue is formed in the pyramidal projections 13 of mouth 12 and turbine slot pattern.When " pressure differential " is discharge fluid collection chamber（Namely patient's pleura
Chamber）During interior gas, 2 Light deformation of reaction diaphragm is made to establish air flue, the pyramidal projections 13 of turbine slot pattern and micro- gas of reaction diaphragm 2
Road and smooth structure 112 build the passage built from air inlet 11 to the pyramidal projections 13 of turbine slot pattern jointly, then pass through row again
Gas port 12 discharges, such as Fig. 4.Conversely, when " pressure differential " is that ecto-entad is oriented to, reaction diaphragm is pushed to 112 in moment
Closed airway completes choked flow, that is, forms unidirectional gas passage, such as Fig. 5.
In addition, the utility model use in negative pressure drainage device, can be directly installed on negative pressure drainage device in hydrops
On the shell of chamber, therefore the water seal cavity of original negative pressure drainage device can save, be conducive to the miniaturization of device.It is more mainly sharp
Use when under carrying and quick rescue, battlefield surroundings, ambulatory environment without water source.With actual combat meaning and disaster relief meaning.
The above is only the preferred embodiment of the present invention, and it does not limit the scope of the patent of the present invention,
Every equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is directly or indirectly transported
Used in other related technical areas, it is equally included in the patent within the scope of the utility model.
Claims (8)
1. a kind of dry type drain valve, it is characterised in that：It includes a valve body（1）, the valve body（1）Air inlet with connection valve chamber
（11）And exhaust outlet（12）；There is the reaction diaphragm that can be deformed according to gas pressure in the valve chamber（2）；Close to air inlet in the valve chamber
Mouthful（11）The inner surface smooth structure with a narrow upper and lower width of one end（112）.
2. dry type drain valve according to claim 1, it is characterised in that：Close to exhaust outlet in the valve chamber（12）One end it is interior
Side is the pyramidal projections of turbine slot pattern（13）.
3. dry type drain valve according to claim 1, it is characterised in that：The reaction diaphragm（2）Outer diameter be less than valve chamber
Internal diameter.
4. dry type drain valve according to claim 1, it is characterised in that：The valve body（1）It is combined and formed by two half-unit,
In there is in a half portion air inlet（11）, there is in another half portion exhaust outlet（12）.
5. dry type drain valve according to claim 2, it is characterised in that：The pyramidal projections of the turbine slot pattern（13）Be by
Several turbine wheels in diverging shape distribution are formed；Height, both ends are low among every turbine wheel, tip height（131）For 0.5mm
The angle of ~ 2.5mm, outer end face and horizontal plane（132）For 30 degree ~ 70 degree, inner face（133）For from top to exhaust outlet
（12）Direction arc-shaped transition.
6. dry type drain valve according to claim 1, it is characterised in that：The reaction diaphragm（2）It is made of flexible material,
It from 5 degree ~ 75 degree of Shao's formula, thickness is from 0.5mm ~ 2.5mm that hardness, which is,.
7. dry type drain valve according to claim 6, it is characterised in that：The reaction diaphragm（2）Using rubber or silica type
Material is made.
8. a kind of negative pressure drainage device, it includes the fluid collection chamber being connected by drainage tube with patient's pleural cavity；It is characterized in that：It should
Negative pressure drainage device is set on the shell of fluid collection chamber just like the dry type drainage described in claim 1 or 2 or 3 or 4 or 5 or 6 or 7
Valve；The air inlet of the dry type drain valve（11）It is connected in fluid collection chamber, exhaust outlet（12）Towards outside shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720437991.9U CN207445262U (en) | 2017-04-25 | 2017-04-25 | A kind of dry type drain valve and negative pressure drainage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720437991.9U CN207445262U (en) | 2017-04-25 | 2017-04-25 | A kind of dry type drain valve and negative pressure drainage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207445262U true CN207445262U (en) | 2018-06-05 |
Family
ID=62246064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720437991.9U Withdrawn - After Issue CN207445262U (en) | 2017-04-25 | 2017-04-25 | A kind of dry type drain valve and negative pressure drainage device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207445262U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107029308A (en) * | 2017-04-25 | 2017-08-11 | 上海契斯特医疗科技公司 | A kind of dry type drain valve and negative pressure drainage device |
-
2017
- 2017-04-25 CN CN201720437991.9U patent/CN207445262U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107029308A (en) * | 2017-04-25 | 2017-08-11 | 上海契斯特医疗科技公司 | A kind of dry type drain valve and negative pressure drainage device |
| CN107029308B (en) * | 2017-04-25 | 2023-06-06 | 上海契斯特医疗器械有限公司 | Dry-type drainage valve and negative pressure drainage device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191011 Address after: Room 2858, 6th floor, 111 Fengpu Avenue, Fengxian District, Shanghai 201400 Patentee after: Shanghai Chester Medical Devices Co.,Ltd. Address before: 201499 No. 757 Xiao Nan Road, Shanghai, Fengxian District Patentee before: SHANGHAI CHEST MEDICAL TECHNOLOGICAL CO.,LTD. |
|
| TR01 | Transfer of patent right | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180605 Effective date of abandoning: 20230606 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180605 Effective date of abandoning: 20230606 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |