CN206342726U - A kind of counterflow-preventing drainage device - Google Patents
A kind of counterflow-preventing drainage device Download PDFInfo
- Publication number
- CN206342726U CN206342726U CN201621018319.8U CN201621018319U CN206342726U CN 206342726 U CN206342726 U CN 206342726U CN 201621018319 U CN201621018319 U CN 201621018319U CN 206342726 U CN206342726 U CN 206342726U
- Authority
- CN
- China
- Prior art keywords
- connecting tube
- counterflow
- rubber bar
- cylindrical hole
- drainage device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of counterflow-preventing drainage device, it includes the drainage bottle being sequentially connected, one rubber bar, a connection piece and a connecting tube, the top port of the drainage bottle is connected with the rubber bar, the other end of the rubber bar is connected by the connector with the connecting tube, the connector includes the cooperate check valve connected and a female Luer connector, the check valve is connected with the rubber bar, the female Luer connector is connected with the connecting tube, the check valve is used to realize from the connecting tube to the unilaterally connected of the drainage bottle when there is negative pressure in the drainage bottle, and realize and do not connected between the connecting tube and the drainage bottle when in the drainage bottle without negative pressure.The raffinate adverse current that the counterflow-preventing drainage device that the utility model is provided can prevent in drainage bottle enters the phenomenon in connecting tube and returned in human body.
Description
Technical field
The utility model is related to a kind of counterflow-preventing drainage device.
Background technology
The operating process of commercially available high negative pressure drainage device includes following key step：
(1) aseptic package bag of high negative pressure drainage device is checked, should be without breakage.
(2) aseptically, high negative pressure drainage device is taken out, checks that the connection of connection pipe joint should be firm.
(3) negative pressure indicator is checked, when negative pressure indicator is in close condensed state, it is negative pressure state to illustrate flow diverter, can
To use；Conversely, negative pressure indicator is in state of upspringing, it is non-negative pressure state to illustrate flow diverter, is sure not to use.
(4) ratio draws on cut-out connecting tube T towers joint (have 6,8,10,12,14,16,18 totally 7 segmentation sign internal diameter sizes)
The small part of flow tube size.For example, the size of drainage tube is 12, then 10 (the containing) for cutting off connecting tube T tower joints are segmented below.
(5) drainage tube is injected into connecting tube, the bottle joint bar of either on or off, now, flow diverter is by automatic running.
(6) when negative pressure indicator is upspring, drainage bottle should be changed in time.
(7) drainage bottle specific steps are changed：
1) a disposable high negative pressure drainage bottle is prepared；
2) joint bar of drainage bottle is locked first, relocks manifold clamp；
3) bottle is separated with connecting tube in connecting tube joint；
4) open the package, take out new drainage bottle；
5) the connection pipe joint on new drainage bottle is connected in connecting tube；
6) joint bar on drainage bottle is first turned on, then opens manifold clamp；
7) now, assembling will automatic running.
But, according to clinically feeding back, existing high negative pressure drainage device is it is possible that the raffinate adverse current in drainage bottle enters
In connecting tube and the phenomenon that returns in human body, this easily triggers retrograde infection, abnormally dangerous.
Utility model content
The technical problems to be solved in the utility model is entered to overcome the high negative pressure drainage device of prior art to there is adverse current
Enter to trigger in human body the defect of retrograde infection, and there is provided a kind of counterflow-preventing drainage device.
The utility model is to solve above-mentioned technical problem by following technical proposals：
The utility model provides a kind of counterflow-preventing drainage device, its drainage bottle for including being sequentially connected, a rubber bar, one
Connector and a connecting tube, the top port of the drainage bottle are connected with the rubber bar, and the other end of the rubber bar passes through
The connector is connected with the connecting tube, and its feature is, the connector include cooperate connection a check valve and
One female Luer connector, the check valve is connected with the rubber bar, and the female Luer connector is connected with the connecting tube, the list
It is used to realize from the connecting tube to the unilaterally connected of the drainage bottle when there is negative pressure in the drainage bottle to valve, and works as institute
Do not connected between the connecting tube and the drainage bottle when stating in drainage bottle without negative pressure.
It is preferred that the check valve includes a first interface, a valve body and the second interface being sequentially connected, described first
Interface is connected with the rubber bar, and the second interface is connected with the female Luer connector；
The valve body includes a main valve body and a valve element in the main valve body, and one be connected with the valve element
Elastic component, the valve element is the taper entity structure that bottom surface is provided with conical bore, and one end of the elastic component is connected with a ball,
The other end is connected with a baffle plate with center hole, and the ball is with the conical bore with pressure change or with tangent formal freedom
Contact or not；
Two ends in the main valve body offer the one first trapezoidal circular cone reduced by port to internal aperture gradual change respectively
Hole and one second trapezoidal conical bore, it is poroid by a center between the first trapezoidal conical bore and the second trapezoidal conical bore
Passage is connected；
The poroid passage in center includes one first cylindrical hole, one second cylindrical hole and one the 3rd cylinder being sequentially communicated
Hole, first cylindrical hole, second cylindrical hole, the aperture of the 3rd cylindrical hole are respectively d1、d2、d3, and d1=d3＜
d2, first cylindrical hole and second cylindrical hole form a boss；
The valve element, the ball, the elastic component and the baffle plate are located in the poroid passage in the center vertically,
The conical surface of the valve element is with pressure change or in sealing contact or do not contact in tangent form with the boss, so that described second
A cylindrical chamber is formed in cylindrical hole, the baffle plate and the 3rd cylindrical hole are tangent, and with elastic component elastic force in institute
State and slided between the 3rd cylindrical hole and the second trapezoidal conical bore；The ball is close to the second interface, the elastic component
Close to the first interface.
It is preferred that the elastic component is a spring.
It is preferred that the counterflow-preventing drainage device also includes one first manifold clamp and one second manifold clamp, first pipe clamp
Plate is vertically arranged on the rubber bar, and overlapping not with the top port or the connector of the drainage bottle, and described
One manifold clamp is used for connection or the closure for controlling the rubber bar；Second manifold clamp is vertically arranged in the connecting tube,
Connection or closure for controlling the connecting tube.
It is preferred that first manifold clamp and second manifold clamp are card slot type manifold clamp.
It is preferred that the card slot type manifold clamp includes a mainboard, the mainboard is sheet plastic plate, is opened up in the middle of it
There is the bar hole of an aperture gradual change type, the bar hole includes a stub end and a small head end, passes through the rubber bar or institute
Movement of the connecting tube in the bar hole is stated, connection or the closure of the rubber bar or the connecting tube is realized.
It is preferred that the end of the connecting tube is provided with T tower joints, for connecting drainage tube.
Positive effect of the present utility model is：Public female Luer is changed to tool by the flow diverter that the utility model is provided
There is the joint of non-return valve function, prevent blood back flow, prevent retrograde trigger of blood, raffinate in drainage bottle from infecting, it is simple in construction, just
In Clinical practice, Clinical practice security is improved.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of the counterflow-preventing drainage device of the utility model embodiment 1.
Fig. 2 is the structural representation of the check valve of the utility model embodiment 1.
Fig. 3 is the profilograph of the body portion of the utility model embodiment 1.
Embodiment
Name preferred embodiment, and become apparent from intactly illustrating the utility model with reference to accompanying drawing.
Embodiment 1
The counterflow-preventing drainage device that the present embodiment is provided is as shown in figure 1, the counterflow-preventing drainage device includes one be sequentially connected
Drainage bottle 1, a rubber bar 2, the connecting tube 3 of a connection piece 4 and one, the top port of the drainage bottle 1 connect with the rubber bar 2
Connect, the other end of the rubber bar 2 is connected by the connector 4 with the connecting tube 3, the connector 4 includes phase interworking
A check valve and a female Luer connector for connection is closed, the check valve is connected with the rubber bar 2, the female Luer connector and institute
State connecting tube 3 to connect, the check valve is used to realize from the connecting tube 3 to described when there is negative pressure in the drainage bottle 1
The unilaterally connected of drainage bottle 1, and do not connect between the connecting tube 3 and the drainage bottle 1 when in the drainage bottle 1 without negative pressure
It is logical.
As shown in Fig. 2 the check valve includes a first interface 5, a valve body 6 and the second interface 7 being sequentially connected, institute
State first interface 5 to be connected with the rubber bar 2, the second interface 7 is connected with the female Luer connector.
As shown in figure 3, the valve body 6 includes a main valve body 601 and a valve element 602 in the main valve body 601, with
And the elastic component 605 being connected with the valve element 602, the valve element 602 is the taper entity structure that bottom surface is provided with conical bore,
One end of the elastic component 605 is connected with a ball 606, and the other end is connected with a baffle plate 603 with center hole, the ball
606 are contacted with the conical bore with pressure change or with tangent formal freedom or not contacted；
Two ends in the main valve body 601 offer the one first trapezoidal circle reduced by port to internal aperture gradual change respectively
Taper hole and one second trapezoidal conical bore, a centre bore is passed through between the first trapezoidal conical bore and the second trapezoidal conical bore
Shape passage is connected；
The poroid passage in center includes one first cylindrical hole, one second cylindrical hole and one the 3rd cylinder being sequentially communicated
Hole, first cylindrical hole, second cylindrical hole, the aperture of the 3rd cylindrical hole are respectively d1、d2、d3, and d1=d3＜
d2, first cylindrical hole and second cylindrical hole form a boss；
The valve element 602, the ball 606, the elastic component 605 and the baffle plate 603 are vertically in described
In the poroid passage of the heart, the conical surface of the valve element 602 is with the boss or in sealing contact or do not connect in tangent form with pressure change
Touch, so that forming a cylindrical chamber 604 in second cylindrical hole, the baffle plate 603 and the 3rd cylindrical hole are tangent, and
Slided with the elastic force of elastic component 605 between the 3rd cylindrical hole and the second trapezoidal conical bore；The ball 606
Close to the second interface 7, the elastic component 605 is close to the first interface 5.In the present embodiment, the elastic component 605 is one
Spring.
From the point of view of compares figure 3, the operation principle of check valve is as follows：When dispatching from the factory, flow diverter is negative pressure state (in drainage bottle
High negative pressure is generally -80~-98kPa), that is, an internal pressure from left to right is acted on check valve, valve element 602
It can be held by pressure top, and promote ball 606, elastic component 605 and baffle plate 603 to turn right motion, so that the fluid stream from left side
Enter in cylindrical chamber 604, then pass through the pipe on the right side of the place space of elastic component 605, and the center hole inflow for passing through baffle plate 603
In road.And in turn, if negative pressure is not present in drainage bottle 1, elastic component 605 then returns to nature, and promote its end
The ball 606 in portion props up the conical bore of valve element 602, and further makes valve element 602 be returned to the left to contact with seamless at boss
Position at, so, even if saying in cylindrical chamber 604 there is liquid counter-current, the liquid counter-current can not also reach left side pipeline
In.
The counterflow-preventing drainage device also includes one first manifold clamp 8 and one second manifold clamp 9, and first manifold clamp 8 hangs down
Directly it is arranged on the rubber bar 2, and it is overlapping not with the top port or the connector 4 of the drainage bottle 1, described first
Manifold clamp 8 is used for connection or the closure for controlling the rubber bar 2；Second manifold clamp 9 is vertical in the connecting tube 3,
Connection or closure for controlling the connecting tube 3.
First manifold clamp 8 and second manifold clamp 9 are card slot type manifold clamp.The card slot type manifold clamp includes
One mainboard, the mainboard is a sheet plastic plate, and the bar hole of an aperture gradual change type, the bar hole are offered in the middle of it
Including a stub end and a small head end, by the movement of the rubber bar 2 or the connecting tube 3 in the bar hole, realize
Connection or the closure of the rubber bar 2 or the connecting tube 3.The end of the connecting tube 3 is provided with T towers joint 10, for connecting
Drainage tube.
The structure design of the connector of the present embodiment, can prevent the adverse current of the raffinate in drainage bottle and enter connecting tube
In and the phenomenon that returns in human body.
Although the foregoing describing embodiment of the present utility model, it will be appreciated by those of skill in the art that
This is merely illustrative of, and protection domain of the present utility model is defined by the appended claims.Those skilled in the art
On the premise of without departing substantially from principle of the present utility model and essence, various changes or modifications can be made to these embodiments,
But these changes and modification each fall within protection domain of the present utility model.
Claims (7)
1. a kind of counterflow-preventing drainage device, it includes a drainage bottle, a rubber bar, a connection piece and the connecting tube being sequentially connected,
The top port of the drainage bottle is connected with the rubber bar, and the other end of the rubber bar passes through the connector and the company
Adapter connection, it is characterised in that the connector includes the cooperate check valve connected and a female Luer connector, the list
It is connected to valve with the rubber bar, the female Luer connector is connected with the connecting tube, the check valve is used to work as the drainage
Realized when there is negative pressure in bottle from the connecting tube to the unilaterally connected of the drainage bottle, and when in the drainage bottle without negative pressure
Realize and do not connected between the connecting tube and the drainage bottle.
2. counterflow-preventing drainage device as claimed in claim 1, it is characterised in that the check valve includes one first be sequentially connected
Interface, a valve body and a second interface, the first interface are connected with the rubber bar, the second interface and the female Luer
Joint is connected；
The valve body includes a main valve body and a valve element in the main valve body, and the elasticity being connected with the valve element
Part, the valve element is the taper entity structure that bottom surface is provided with conical bore, and one end of the elastic component is connected with a ball, another
End is connected with a baffle plate with center hole, and the ball is contacted with the conical bore with pressure change or with tangent formal freedom
Or do not contact；
Two ends in the main valve body offer respectively the one first trapezoidal conical bore that is reduced by port to internal aperture gradual change and
One second trapezoidal conical bore, the poroid passage in a center is passed through between the first trapezoidal conical bore and the second trapezoidal conical bore
Connection；
The poroid passage in center includes one first cylindrical hole, one second cylindrical hole and one the 3rd cylindrical hole being sequentially communicated, institute
State the first cylindrical hole, second cylindrical hole, the aperture respectively d of the 3rd cylindrical hole1、d2、d3, and d1=d3＜ d2, institute
State the first cylindrical hole and second cylindrical hole, one boss of formation；
The valve element, the ball, the elastic component and the baffle plate are located in the poroid passage in the center vertically, described
The conical surface of valve element is with pressure change or in sealing contact or do not contact in tangent form with the boss, so that second cylinder
A cylindrical chamber is formed in hole, the baffle plate and the 3rd cylindrical hole be tangent, and with elastic component elastic force described the
Slided between three cylindrical holes and the second trapezoidal conical bore；The ball is located at close to one end of the second interface, described
Elastic component is located at close to one end of the first interface.
3. counterflow-preventing drainage device as claimed in claim 2, it is characterised in that the elastic component is a spring.
4. counterflow-preventing drainage device as claimed in claim 1, it is characterised in that the counterflow-preventing drainage device also includes one first pipe
Clamping plate and one second manifold clamp, first manifold clamp are vertically arranged on the rubber bar, and not with the drainage bottle
Top port or the connector are overlapping, and first manifold clamp is used for connection or the closure for controlling the rubber bar；Described
Two manifold clamps are vertically arranged in the connecting tube, connection or closure for controlling the connecting tube.
5. counterflow-preventing drainage device as claimed in claim 4, it is characterised in that first manifold clamp and second manifold clamp
It is card slot type manifold clamp.
6. counterflow-preventing drainage device as claimed in claim 5, it is characterised in that the card slot type manifold clamp includes a mainboard, institute
It is a sheet plastic plate to state mainboard, the bar hole of an aperture gradual change type is offered in the middle of it, it is big that the bar hole includes one
Head end and a small head end, by the movement of the rubber bar or the connecting tube in the bar hole, realize the rubber bar
Or connection or the closure of the connecting tube.
7. counterflow-preventing drainage device as claimed in claim 1, it is characterised in that the end of the connecting tube is provided with T tower joints, is used
In connection drainage tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621018319.8U CN206342726U (en) | 2016-08-31 | 2016-08-31 | A kind of counterflow-preventing drainage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621018319.8U CN206342726U (en) | 2016-08-31 | 2016-08-31 | A kind of counterflow-preventing drainage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206342726U true CN206342726U (en) | 2017-07-21 |
Family
ID=59316732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621018319.8U Expired - Fee Related CN206342726U (en) | 2016-08-31 | 2016-08-31 | A kind of counterflow-preventing drainage device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206342726U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109498854A (en) * | 2018-12-29 | 2019-03-22 | 刘铁楠 | A kind of drainage monitoring device |
| WO2019080191A1 (en) * | 2017-10-24 | 2019-05-02 | 肖金仿 | Efficient carrying portable constant negative pressure suction apparatus for outdoor use |
| CN117065117A (en) * | 2023-10-18 | 2023-11-17 | 浙江省肿瘤医院 | Breast cancer postoperative drainage device |
-
2016
- 2016-08-31 CN CN201621018319.8U patent/CN206342726U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019080191A1 (en) * | 2017-10-24 | 2019-05-02 | 肖金仿 | Efficient carrying portable constant negative pressure suction apparatus for outdoor use |
| CN109498854A (en) * | 2018-12-29 | 2019-03-22 | 刘铁楠 | A kind of drainage monitoring device |
| CN117065117A (en) * | 2023-10-18 | 2023-11-17 | 浙江省肿瘤医院 | Breast cancer postoperative drainage device |
| CN117065117B (en) * | 2023-10-18 | 2024-01-23 | 浙江省肿瘤医院 | Breast cancer postoperative drainage device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170721 Termination date: 20200831 |