CN207785596U - A kind of stifled needle for inserting bottle of gas-tight - Google Patents
A kind of stifled needle for inserting bottle of gas-tight Download PDFInfo
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- CN207785596U CN207785596U CN201720740484.2U CN201720740484U CN207785596U CN 207785596 U CN207785596 U CN 207785596U CN 201720740484 U CN201720740484 U CN 201720740484U CN 207785596 U CN207785596 U CN 207785596U
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- gas
- valve block
- needle
- tight
- inlet channel
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Abstract
The utility model discloses a kind of stifled needle for inserting bottle of gas-tight comprising：Needle body is equipped with inlet channel and exhalant canal, and the side of inlet channel is provided with inlet channel mouth；Transom structure is arranged in inlet channel mouth；Air filter film is arranged in inlet channel mouth, and positioned at the inside of transom structure；Further include the gas-tight bridging structure being arranged on the inside of air filter film, gas-tight bridging structure includes：Valve bracket comprising the vacancy section that Support and Support are formed, vacancy section includes installing zone and the channel region positioned at installing zone side；Valve block comprising valve block head and Resistance, valve block head are movably positioned in installing zone, and Resistance can be close to valve bracket, and can seal channel region.The utility model is simple in structure, and production cost is low, can be effectively spaced apart liquid and be contacted with air filter film, airflow smooth, avoids flows decrease in infusion process, medicine bottle collapse or even not drug.
Description
Technical field
The utility model is related to medical instruments fields more particularly to a kind of gas-tight to block up needle for inserting bottle.
Background technology
Currently, disposable infusion set clinically, there are one transom windows, transom window to be built-in with air for band on needle for inserting bottle
Filter membrane, during needle for inserting bottle is inserted into medicine bottle, liquid can enter from inlet channel, be in direct contact air-filtering membrane, make air
Filter membrane soaks.After needle for inserting bottle enters medicine bottle, air enters medicine bottle from transom window through air-filtering membrane, the pressure in equalizing vial
Power, liquid could quickly be flowed out through medicine liquid channel.If after air filter film wetting, moisture film barrier layer is formed, air hardly enters medicine
Bottle, makes the medicine pressure in the bottle become smaller（Form negative pressure）, liquid flows decrease or can not flow or even bottle collapse.
Currently, although there are also needle for inserting bottle, to be related to anti-backflow gas-tight stifled on the market, such as：The patent No.
201310122973.8 Chinese invention, which is applied for a patent, discloses a kind of needle for inserting bottle, including needle body and air filter, air mistake
Filter is connected with the air duct on needle body, and liquid is equipped with below the filter paper of the air filter and prevents device, the air
Filter is from top to bottom by upper cover, and filter paper, filter paper support, resistance mounting, lower cover composition, upper cover and lower cover combine and form cavity, filter
In the cavities, filter paper support is barreled structure, and filter paper is placed in filter paper support, filter paper support for paper, filter paper support, the engaging of resistance mounting
Bottom has stomata, resistance mounting to be located at the lower part of filter paper support, and resistance mounting center has column bracket and the centre bore of filter paper support to coordinate.But
This patent structure is complicated, and production cost is high.
Utility model content
The technical problem to be solved by the utility model is to for the above-mentioned deficiency of the prior art, propose a kind of structure
Simply, production cost is low, can be effectively spaced apart liquid and be contacted with air filter film, airflow smooth, avoid flows decrease in infusion process,
Even a kind of gas-tight of drug does not block up needle for inserting bottle to medicine bottle collapse.
The utility model solves its technical problem, the technical solution adopted is that, propose that a kind of gas-tight blocks up needle for inserting bottle, packet
It includes：Needle body, the needle body are equipped with inlet channel and exhalant canal, and the side of the inlet channel is provided with inlet channel mouth；Gas
Window construction, the transom structure are arranged in the inlet channel mouth；Air filter film, the air filter film setting are logical in the air inlet
In road junction, and positioned at the inside of the transom structure；It is characterized in that, further including the gas-tight being arranged on the inside of the air filter film
Bridging structure, the gas-tight bridging structure include：
Valve bracket, the valve bracket include the vacancy section that Support and the Support are formed, the vacancy section packet
Include installing zone and the channel region positioned at the installing zone side；
Valve block, the valve block include valve block head and Resistance, and the valve block head is movably positioned in the installing zone, institute
The valve bracket can be close to by stating Resistance, and can seal the channel region.
Preferably, the valve bracket further includes anti-flake, the anti-flake is formed on the inside of the Support for resistance
Keep off the movable interior behaviour area in area.Anti- flake is set, can prevent valve block from skidding off valve bracket because of the reason of pressure.
Preferably, being formed for the movable outer behaviour area of valve block head with the air filter film on the outside of the Support.For valve
Head provide a zone of action, will not poke air filter film.
Preferably, the anticreep on piece is equipped with multiple protrusions.Multiple protrusions can prevent Resistance and anti-flake direct
Contact makes in this way because generating big bonding force between being in direct contact the Resistance and the anti-flake of moistening that can make moistening
The effect used will be influenced in.
Preferably, the length of the valve block head be less than or equal to the outer behaviour area width and installing zone width it
With.Thus more it can prevent valve block head from poking air filter film in activity.
Preferably, the Resistance is provided with sealant close to the side of valve bracket.In this way in inlet channel by medicine
Liquid squeezes down, and barrier sheet is close to valve bracket, and sealant can better ensure that liquid will not enter channel region.
Preferably, side of the Resistance far from valve bracket is provided with waterproof layer.Preferably prevent liquid from entering
Channel region.
Preferably, being equipped with degerming layer in the transom structure.It can be with the contaminated risk of reduction liquid of maximum possible.
Preferably, the valve block cephalic par overstriking.It is better protected from valve block and removes valve bracket.
Preferably, the valve block head surface is equipped with flexible layer.Increase the air-tightness when valve block is closed, liquid can be prevented
Body is gone out from installing zone.
The utility model has the advantages that：
Gas-tight bridging structure is set, when inlet channel, which is pressurized, squeezes liquid outward, valve bracket is close in the Resistance of valve block,
Closed access, liquid can not be contacted with air filter film；When outside the pressure ratio transom window in inlet channel pressure releases, inlet channel
The Resistance of pressure hour, valve block are separated with valve bracket automatically, and access is opened, and air enters air inlet from transom window through air filter film
Channel.
Description of the drawings
Fig. 1 is the cross-sectional view of the utility model；
Fig. 2 is the diagrammatic cross-section of gas-tight bridging structure.
In figure, 1, needle body, 11, exhalant canal, 12, inlet channel, 121, inlet channel mouth, 2, transom structure, 3, air
Filter membrane, 4, gas-tight bridging structure, 41, valve bracket, 411 Support, 412, vacancy section, 4121, channel region, 4122, installing zone,
42, valve block, 421, valve block head, 422, Resistance, 413, anti-flake, 4131, multiple protrusions, 43, interior behaviour area, 44, outer activity
Area.
Specific implementation mode
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
Embodiment
A kind of stifled needle for inserting bottle of gas-tight as shown in Fig. 1 to 2, including needle body 1, transom structure 2, air filter film 3, Anti-blocking structure
4。
Needle body 1 is equipped with inlet channel 12 and exhalant canal 11, and the side of inlet channel 12 is provided with inlet channel mouth 121；
Transom structure 2 is arranged in inlet channel mouth 121；Air filter film 3 is arranged in inlet channel mouth 121, and positioned at transom structure 2
Inside；Further include the gas-tight bridging structure 4 being arranged in 3 inside of air filter film, gas-tight bridging structure 4 includes valve bracket 41, valve block 42.
Valve bracket 41 includes the vacancy section 412 that Support 411 and Support 411 are formed, vacancy section（412）Including installation
Area 4122 and channel region 4121 positioned at 4122 side of installing zone；
Valve block 42 includes valve block head 421 and Resistance 422, and valve block head 421 is movably positioned in installing zone 4122, is stopped
Area 422 can be close to valve bracket 41, and can seal channel region 4121.When inlet channel, which is pressurized, squeezes liquid outward, valve
Valve bracket, closed access are close in the Resistance of piece, and liquid can not be contacted with air filter film；When inlet channel pressure releases, into
The pressure hour outside pressure ratio transom window in gas channel, the Resistance of valve block are separated with valve bracket automatically, and access is opened, air
Enter inlet channel from transom window through air filter film.
In addition, valve bracket 41 further includes anti-flake 413, anti-flake 413 is with formation on the inside of Support for Resistance activity
Interior behaviour area 43.Anti- flake can prevent valve block from skidding off valve bracket because of the reason of pressure.
In addition, the outside of Support 411 and air filter film 3 are formed for the movable outer behaviour area of valve block head 421 44.For valve block head
421 provide a zone of action, will not poke air filter film.
In addition, anti-flake 4 is equipped with multiple raised 4131.Multiple raised 4131 can prevent Resistance 422 and anti-flake
413 are in direct contact, and big glue is generated between the Resistance 422 that can make moistening and the anti-flake 413 of moistening because being in direct contact
With joint efforts, doing so now can be to avoid big bonding force be generated, to ensure normal operation.
In addition, the length of valve block head 421 is less than or equal to the sum of the width of the width and installing zone 4122 of outer behaviour area 44.This
Embodiment is less than the sum of the width of the width and installing zone 4122 of outer behaviour area 44 using the length of valve block head 421, thus more
Adding can prevent valve block head 421 from poking air filter film 3 in activity.
In addition, Resistance 422 is provided with sealant close to the side of valve bracket 41.It is in inlet channel that liquid is past in this way
Lower to squeeze, Resistance 422 is close to valve bracket 41, and sealant can better ensure that liquid will not enter channel region.
In addition, side of the Resistance 422 far from valve bracket 41 is provided with waterproof layer.Preferably prevent liquid from entering channel
Area 4121.
In addition, being equipped with degerming layer in transom structure 2.It can be with the contaminated risk of reduction liquid of maximum possible.
In addition, the 421 end overstriking of valve block head.It is better protected from valve block 42 and removes valve bracket 41.
In addition, 421 surface of valve block head is equipped with flexible layer.Increase air-tightness when valve block is closed, can prevent liquid from
Installing zone 4122 is gone out.
In use, opening outer packing, needle body 1 is inserted into bottle, opens transom structure 2, when inlet channel 12 is pressurized medicine
When liquid squeezes outward, valve bracket 41, closed access are close in the Resistance 422 of valve block 42, and liquid can not be contacted with air filter film 3；
The Resistance 422 of pressure hour outside the pressure ratio transom window in inlet channel pressure releases, inlet channel 12, valve block 42 are automatic
It is separated with valve bracket 41, access is opened, and air enters inlet channel from transom structure 2 through air filter film, in the process, can be effective
It separates liquid to contact with air filter film, airflow smooth, flow velocity is normal in infusion process, medicine bottle keeps as before.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (10)
1. a kind of gas-tight blocks up needle for inserting bottle, including：Needle body（1）, the needle body（1）Equipped with inlet channel（12）And exhalant canal
（11）, the inlet channel（12）Side be provided with inlet channel mouth（121）；Transom structure（2）, the transom structure（2）
It is arranged in the inlet channel mouth（121）；Air filter film（3）, the air filter film（3）It is arranged in the inlet channel mouth
（121）It is interior, and it is located at the transom structure（2）Inside；It is characterized in that, further including being arranged in the air filter film（3）It is interior
The gas-tight bridging structure of side（4）, the gas-tight bridging structure（4）Including：
Valve bracket（41）, the valve bracket（41）Including Support（411）With the Support（411）The vacancy section of formation
（412）, the vacancy section（412）Including installing zone（4122）With positioned at the installing zone（4122）The channel region of side
（4121）；
Valve block（42）, the valve block（42）Including valve block head（421）The Resistance and（422）, the valve block head（421）Movably
It is placed in the installing zone（4122）It is interior, the Resistance（422）It can be close to the valve bracket（41）, and can seal described
Channel region（4121）.
2. a kind of gas-tight according to claim 1 blocks up needle for inserting bottle, it is characterised in that：The valve bracket（41）Further include preventing
Flake（413）, the anti-flake（413）With the Support（411）Inside is formed for Resistance（422）Movable interior behaviour area
（43）.
3. a kind of gas-tight according to claim 1 blocks up needle for inserting bottle, it is characterised in that：The Support（411）Outside and institute
State air filter film（3）It is formed for valve block head（421）Movable outer behaviour area（44）.
4. a kind of gas-tight according to claim 2 blocks up needle for inserting bottle, it is characterised in that：The anti-flake（413）It is equipped with more
A protrusion（4131）.
5. a kind of gas-tight according to claim 3 blocks up needle for inserting bottle, it is characterised in that：The valve block head（421）Length it is small
In equal to the outer behaviour area（44）Width and installing zone（4122）The sum of width.
6. a kind of gas-tight according to claim 1 blocks up needle for inserting bottle, it is characterised in that：The Resistance（422）Close to valve block
Holder（41）Side be provided with sealant.
7. a kind of gas-tight according to claim 1 blocks up needle for inserting bottle, it is characterised in that：The Resistance（422）Far from valve block
Holder（41）Side be provided with waterproof layer.
8. a kind of gas-tight according to claim 1 blocks up needle for inserting bottle, it is characterised in that：The transom structure（2）Interior be equipped with is removed
Bacterium layer.
9. a kind of gas-tight according to claim 1 blocks up needle for inserting bottle, it is characterised in that：The valve block head（421）End overstriking.
10. a kind of gas-tight according to claim 1 blocks up needle for inserting bottle, it is characterised in that：The valve block head（421）Surface is equipped with
Flexible layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720740484.2U CN207785596U (en) | 2017-06-23 | 2017-06-23 | A kind of stifled needle for inserting bottle of gas-tight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720740484.2U CN207785596U (en) | 2017-06-23 | 2017-06-23 | A kind of stifled needle for inserting bottle of gas-tight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207785596U true CN207785596U (en) | 2018-08-31 |
Family
ID=63274073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720740484.2U Active CN207785596U (en) | 2017-06-23 | 2017-06-23 | A kind of stifled needle for inserting bottle of gas-tight |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207785596U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109550868A (en) * | 2018-12-31 | 2019-04-02 | 浙江伏尔特医疗器械股份有限公司 | The automatic bending angle patterning process device of epidural anaesthetic puncture needle |
| CN110075382A (en) * | 2019-05-29 | 2019-08-02 | 浙江伏尔特医疗器械股份有限公司 | A kind of multi-functional non-PVC material infusion apparatus |
-
2017
- 2017-06-23 CN CN201720740484.2U patent/CN207785596U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109550868A (en) * | 2018-12-31 | 2019-04-02 | 浙江伏尔特医疗器械股份有限公司 | The automatic bending angle patterning process device of epidural anaesthetic puncture needle |
| CN109550868B (en) * | 2018-12-31 | 2023-10-31 | 浙江伏尔特医疗器械股份有限公司 | Automatic bending angle shaping processing device for epidural anesthesia puncture needle |
| CN110075382A (en) * | 2019-05-29 | 2019-08-02 | 浙江伏尔特医疗器械股份有限公司 | A kind of multi-functional non-PVC material infusion apparatus |
| CN110075382B (en) * | 2019-05-29 | 2024-04-19 | 浙江伏尔特医疗器械股份有限公司 | Multifunctional non-PVC material transfusion system |
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