CN109498890A - Positive pressure feather valve and no-needle transfusion connector - Google Patents
Positive pressure feather valve and no-needle transfusion connector Download PDFInfo
- Publication number
- CN109498890A CN109498890A CN201811549891.0A CN201811549891A CN109498890A CN 109498890 A CN109498890 A CN 109498890A CN 201811549891 A CN201811549891 A CN 201811549891A CN 109498890 A CN109498890 A CN 109498890A
- Authority
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- China
- Prior art keywords
- positive pressure
- upper sealing
- base portion
- feather valve
- sealing
- 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.)
- Pending
Links
- 210000003746 feather Anatomy 0.000 title claims abstract description 54
- 238000007789 sealing Methods 0.000 claims abstract description 97
- 239000000463 material Substances 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000001802 infusion Methods 0.000 abstract description 36
- 239000007788 liquid Substances 0.000 abstract description 13
- 239000008280 blood Substances 0.000 abstract description 5
- 210000004369 blood Anatomy 0.000 abstract description 5
- 239000003814 drug Substances 0.000 description 11
- 229940079593 drug Drugs 0.000 description 10
- 238000004659 sterilization and disinfection Methods 0.000 description 6
- 241001270131 Agaricus moelleri Species 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 230000023555 blood coagulation Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 235000015097 nutrients Nutrition 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000000645 desinfectant Substances 0.000 description 2
- 230000005802 health problem Effects 0.000 description 2
- 230000003447 ipsilateral effect Effects 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 208000012266 Needlestick injury Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000001194 anti-hemostatic effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/10—Tube connectors; Tube couplings
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/22—Valves or arrangement of valves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M2005/1401—Functional features
Abstract
The invention belongs to infusion apparatus fields, and in particular to a kind of positive pressure feather valve comprising upper sealing and lower base portion, lower base portion are downward opening tubular, have cavity inside upper sealing, which communicates with lower base portion inner cavity and deviate the central axes of sealing；When external force acts on upper sealing top from top, to side folded deformation occurs for upper sealing；Upper sealing outer diameter is less than lower base portion outer diameter.In repeatedly access external infusion connector, positive pressure feather valve generated folded deformation after stress is consistent, and stability is higher when clinical use, is less prone to obstructed liquid or not rebound phenomena.The present invention also provides a kind of no-needle transfusion connectors of application positive pressure feather valve simultaneously, after repeatedly access external infusion connector, still it is able to maintain good leakproofness, positive pressure can be generated during separating external infusion with no-needle transfusion connector with connector simultaneously, prevent blood backflow into catheter lumen.
Description
Technical field
The present invention relates to a kind of positive pressure feather valve and with the no-needle transfusion connector of the positive pressure feather valve, belong to infusion device
Tool field.
Background technique
Currently, no-needle transfusion connector is widely used to clinical transfusion, can be infused again by no-needle transfusion connector
When avoid penetrating again for needle, that is, avoid the puncture repeatedly of transfusion needle, reduce patient suffering, while avoiding medical staff
By the probability of needlestick injuries.
But it being commercially available in no-needle transfusion connector, some are unreasonable because the valve body material or valve body structure of use design,
It will appear single or the problem of rear valve body can not spring back to home position be used for multiple times, in this way, it is defeated on the one hand to will affect needleless
The leakproofness of liquid connector leads to leakage, can not repeatedly use；On the other hand, it is connect in external infusion with connector and no-needle transfusion
When head separation, the problem for being also easy to positive pressure deficiency occur makes blood backflow to catheter lumen, and because conduit cavity blood clotting causes
Plugging and can not be infused.
In addition to this, the valve body of some no-needle transfusion connectors only has that lower substrate is foldable, and upper sealing can not fold, in order to
Body top need to be designed as inclination or groove by forming medical fluid access, caused wiping inconvenient, not can be carried out thorough disinfection, and
And external microorganism or dust is easy to cause to assemble in groove, cause the probability of complication to increase.Some used valve bodies
Top is flat-top, but it realizes that the mode of fluid path is that upper sealing is designed as external inner groovy, and it is defeated to will increase needleless in this way
Liquid connector internal clearance causes medical fluid to retain increase and waste, and recess causes the probability of edges and corners aggregation microorganism to increase,
The probability for causing complication to occur increases.
Summary of the invention
The technical problem to be solved by the present invention is overcome deficiency in the prior art, provide a kind of positive pressure feather valve and
No-needle transfusion connector with the positive pressure feather valve guarantees that no-needle transfusion connector is still in repeatedly access external infusion connector
It is able to maintain good leakproofness, while positive pressure can be generated when separating external infusion with no-needle transfusion connector with connector,
Prevent blood backflow into catheter lumen, stability is high when clinical use, is less prone to obstructed liquid or not rebound phenomena.
Positive pressure feather valve of the present invention, is made of macromolecular material comprising upper sealing and lower base portion,
Lower base portion is downward opening tubular, has cavity inside upper sealing, which communicates and deviate close with lower base portion inner cavity
The central axes in envelope portion；When external force acts on upper sealing top from top, to side folded deformation occurs for upper sealing；It is upper close
Envelope portion outer diameter is less than lower base portion outer diameter.In application, macromolecular material can use silica gel, synthetic rubber, natural rubber, heat
Thermoplastic elastic etc..
Present invention is mainly applied in no-needle transfusion connector, in clinical use, external infusion connector and no-needle transfusion
Connector connection, and apply downward pressure to upper sealing, because the cavity inside upper sealing deviates its central axes, therefore apply
Pressure at an upper portion thereof can pass on the wall far from cavity and realize the folding of upper sealing, while the pressure can pass to inside
On hollow lower base portion, lower base portion is made also to realize folding, so that the position of upper sealing moves down, makes no-needle transfusion joint
In opening state, to be infused.After infusion, external infusion is backed out from no-needle transfusion connector with connector, is made
The two is detached from, and the pressure for acting on sealing disappears, therefore, whole because the material of positive pressure feather valve itself has resilience
Structure can be realized complete rebound, and no-needle transfusion connector is made to be in closed state, and the sealing state before being again restored to, together
When required positive pressure can generated by the rebound of positive pressure feather valve, to prevent blood backflow into catheter lumen, and avoid because
Patient health problem brought by conduit cavity blood clotting.When reusing, need to only it use disinfectant to upper sealing top
It carries out disinfection, external infusion connector is connect according to routine operation with the no-needle transfusion connector then, can be realized defeated again
Liquid.
Except above-mentioned points, because the cavity in sealing upper in positive pressure feather valve deviates center, therefore upper sealing after stress
Folded deformation position consistency, in this way in repeatedly access external infusion connector, deformation is unique, has the characteristics that stability；
And after institute's stress disappears, positive pressure feather valve restores to original state, and sealing outer wall has preferable smoothness thereon, this
Sample, the gap between positive pressure feather valve and no-needle transfusion connector is smaller, when carrying out the infusion such as nutrient solution or valuable drug, meeting
The residual of drug or harmful substance in no-needle transfusion connector inner cavity is substantially reduced, to reduce the generation of complication.
Preferably, the top peripheral protrusion of upper sealing forms sealing ring, plays sealing function.
Preferably, from top to bottom, the cavity in upper sealing is gradually biased to the central axes direction of sealing and cavity is cut
Face is gradually increased, to make sealing wall thickness be gradually reduced from top to bottom, when the flat-top of positive pressure feather valve is by external force
When, it is easier to folded deformation occurs to side, forms medicine liquid channel.
Preferably, the top of upper sealing is flat-top, i.e., the top of upper sealing is flat face.In external infusion with connecing
When head is connect with no-needle transfusion connector, load(ing) point is more readily formed in the plane, and after upper sealing folds, still
It is able to maintain the contact of external infusion connector with upper sealing, i.e. external infusion connector can still apply to upper sealing
Pressure, it is ensured that practical effect；Top planes are easy wiping simultaneously, and thorough disinfection is helped to realize before reusing.
It is further preferred that being equipped with one or several built-in inner groovies on lower base portion inner wall.When built in setting one
When inner groovy, the setting direction of built-in inner groovy is identical as the setting direction of upper sealing internal cavity；It is several built-in interior when being arranged
When groove, the setting direction positioned at the built-in inner groovy of the top is identical as the setting direction of upper sealing internal cavity, up and down phase
The setting direction of inner groovy is opposite built in neighbour two.Pass through this design, on the one hand, because the wall ratio on lower base portion at inner groovy its
Elsewhere wants thin, and is easier that folded deformation occurs compared to other positions at thin-walled, therefore, in repeatedly access external infusion connector
When, the folded deformation position of lower base portion is unique, and stability is higher when clinical use, is less prone to obstructed liquid or not rebound phenomena；
On the other hand, lower base portion outer wall has preferable smoothness, in this way, after institute's stress disappears, lower base portion and no-needle transfusion connector
Between gap it is also smaller, drug or harmful substance residual are few.
In practical application, one or several external inner groovies can also be equipped on lower base portion outer wall.When setting one
When a external inner groovy, the setting direction of external inner groovy is identical as the setting direction of upper sealing internal cavity；It is several when being arranged
When external inner groovy, the setting direction positioned at the external inner groovy of the top is identical as the setting direction of upper sealing internal cavity,
The setting direction of neighbouring two external inner groovy is opposite.Wherein, the effect of external inner groovy and the work of above-mentioned built-in inner groovy
With identical, it can either guarantee that the folded deformation position of lower base portion is unique, and can be reduced the residual of drug or harmful substance.
No-needle transfusion connector of the present invention includes joint shell and the valve body in joint shell, wherein valve body
Using above-mentioned positive pressure feather valve, upper sealing, the lower base portion of positive pressure feather valve are located at upper interface, cavity of resorption in joint shell
In, positive pressure feather valve keeps sealing by sealing thereon and upper interface, and lower there are first gap, air between base portion and cavity of resorption
Or liquid can be passed in and out from no-needle transfusion connector by first gap.
Preferably, the upper interface in joint shell and between cavity of resorption use shoulder transition, the upper sealing of positive pressure feather valve
There are Second gap between shoulder, it may make that the upper sealing of positive pressure feather valve is pressed when accessing external infusion connector
There are enough spaces steadily to be folded after contracting, moreover, after external infusion is withdrawn with connector, the smooth rebound of upper sealing energy,
Play the role of transition in stress deformation.
Compared with the prior art, the invention has the beneficial effects that:
1, positive pressure feather valve of the present invention generated folded deformation after stress is consistent, outer in multiple access in this way
When portion's infusion is with connector, deformation is unique, and stability is higher when clinical use, is less prone to obstructed liquid or not rebound phenomena；
2, still can after repeatedly access external infusion connector using the no-needle transfusion connector of the positive pressure feather valve
Good leakproofness is kept, while can be generated just during separating external infusion with no-needle transfusion connector with connector
Pressure, prevents blood backflow into catheter lumen；
3, it since the outer wall of the upper sealing of positive pressure feather valve and lower base portion all has preferable smoothness, is carrying out
When nutrient solution or valuable drug etc. are transfused, drug can be made sufficiently to be transfused, drug or harmful substance are in no-needle transfusion connector inner cavity
In residual quantity it is lower, to reduce the generation of complication.
Detailed description of the invention
Fig. 1 is one of the structural schematic diagram of positive pressure feather valve in the present invention；
Fig. 2 is the second structural representation of positive pressure feather valve in the present invention；
Fig. 3 is the structural schematic diagram of no-needle transfusion connector in the present invention；
Fig. 4 is structural schematic diagram when external infusion connector is connect with no-needle transfusion connector shown in Fig. 3.
In figure: 1, upper sealing；2, cavity；3, lower base portion；4, built-in inner groovy；5, external inner groovy；6, joint shell；
7, first gap；8, shoulder；9, Second gap；10, external infusion connector；11, positive pressure feather valve；12, sealing ring；13,
Three gaps.
Specific embodiment
The embodiment of the present invention is described further with reference to the accompanying drawing:
Embodiment one:
As shown in Figure 1, a kind of positive pressure feather valve, structure includes upper sealing 1 and lower base portion 3, and entirety uses silica gel one
It is body formed.The lower base portion 3 of positive pressure feather valve is downward opening tubular, and upper sealing 1 is cylindrical, the central axes phase of the two
Together；The top of upper sealing 1 is flat-top, and top peripheral protrusion forms sealing ring 12；There is cavity 2 inside upper sealing, it should
Cavity 2 communicates with lower 3 inner cavity of base portion and deviates the central axes of sealing 1；From top to bottom, the cavity 2 in upper sealing 1 is gradually
The central axes direction of sealing 1 and 2 section of cavity is gradually increased in deviation；Upper 1 outer diameter of sealing is less than lower 3 outer diameter of base portion.?
Lower 3 inner wall of base portion is equipped with 2 built-in inner groovies 4, in the setting direction for the built-in inner groovy 4 being located above and upper sealing 1
The setting direction of cavity 2 is identical (i.e. built-in inner groovy 4 is located at the ipsilateral of central axes with cavity 2), underlying built-in indent
The setting direction of slot 4 is opposite with the setting direction for the built-in inner groovy 4 being located above.
Embodiment two:
As shown in Fig. 2, another positive pressure feather valve, structure are basically the same as the first embodiment, unique difference exists
In: it is not that built-in inner groovy 4 is set on lower 3 inner wall of base portion, but 2 external inner groovies are equipped on lower 3 outer wall of base portion
5, the setting direction for the external inner groovy 5 being located above (i.e. external indent identical as the setting direction of upper 1 internal cavity 2 of sealing
Slot 5 and cavity 2 are located at the ipsilateral of central axes), the setting direction of underlying external inner groovy 5 be located above it is external interior
The setting direction of groove 5 is opposite.
Embodiment three:
As shown in figure 3, a kind of no-needle transfusion connector with positive pressure feather valve described in embodiment one, positive pressure feather valve are located at
In the joint shell 6 of no-needle transfusion connector, upper sealing 1, the lower base portion 3 of positive pressure feather valve are located in joint shell 6
In upper interface, cavity of resorption, there are first gaps 7 between lower base portion 3 and cavity of resorption.In the present embodiment, upper interface in joint shell 6 and
8 transition of shoulder is used between cavity of resorption, there are Second gaps 9 between the upper sealing 1 and shoulder 8 of positive pressure feather valve.In positive pressure bullet
Property valve and joint shell 6 assembling process in, positive pressure feather valve passes through the sealing ring 12 and joint shell 6 on sealing 1 thereon
Interior upper interface is interference fitted to form first of sealing, at the same when positive pressure feather valve is mounted in no-needle transfusion connector have it is certain
Precompressed, lower base portion 3 and the shoulder 8 of joint shell 6 are interference fitted, and are formed second sealing, can be risen under the action of two seals
To sealing function, liquid leakage is prevented.
The working principle process of the present embodiment is as follows:
In clinical use, external infusion connect (state such as Fig. 4 when the two connects with connector 10 with no-needle transfusion connector
It is shown), and apply downward pressure to positive pressure feather valve 11, because the cavity 2 inside upper sealing 1 deviates its central axes, therefore
The pressure applied at an upper portion thereof can make the amesiality folded deformation of sealing 1, while top pressure applied can pass to
On the lower base portion 3 of inner hollow, lower base portion 3 is made also to realize folding along built-in 4 position of inner groovy, so that upper sealing 1
Position moves down, since the space of 6 inner cavity lower part of joint shell is larger, so that upper sealing 1 and external infusion are between connector 10
Dislocation is formed, infusion channel is opened, while third gap 13 is formed between upper sealing 1 and joint shell 6.
Both after infusion, external infusion is backed out from the joint shell 6 of no-needle transfusion connector with connector 10, make
It is detached from, the pressure for acting on sealing 1 disappears, because the material of positive pressure feather valve itself has resilience, therefore, overall structure
It can be realized complete rebound, no-needle transfusion connector made to be in closed state, and the sealing state before being again restored to, while just
After compression elasticity valve 11 is sprung back, third gap 13 disappears, first gap 7 and Second gap 9 before being restored to, because of positive pressure feather valve
13 volume of third gap is formed by after compression greater than the sum of 9 volume of first gap 7 and Second gap, so that positive compression elasticity
Liquid between valve 11 and joint shell 6 in gap forms bigger pressure, thus positive pressure needed for being formed, so that anti-Hemostatic Oral Liquid returns
It flows in catheter lumen, and avoids because of patient health problem brought by conduit cavity blood clotting.
When reusing, need to only disinfectant be used to carry out disinfection upper 1 top of sealing, it then will be outer according to routine operation
Portion's infusion connector is connect with the no-needle transfusion connector, be can be realized and is infused again.
Positive pressure feather valve described in the present embodiment, it is upper close because the cavity 2 in upper sealing 1 deviates center, therefore after stress
The folded deformation position in envelope portion 1 can be consistent, while because its elsewhere of wall ratio on lower base portion 3 at inner groovy wants thin, therefore,
The folded deformation position of lower base portion 3 can be also consistent after stress, in this way, in repeatedly access external infusion connector, entirely
The folded deformation position of upper sealing 1 and lower base portion 3 is all unique in positive pressure feather valve, and in clinical use, stability is more
Height is less prone to obstructed liquid or not rebound phenomena.
And therefore either upper sealing 1 or lower base portion 3, are being sought because outer wall all has preferable smoothness
When nutrient solution or valuable drug etc. are transfused, drug can be made sufficiently to be transfused, drug or harmful substance are in no-needle transfusion connector inner cavity
Residual quantity it is much lower compared with conventional no-needle transfusion connector, while reducing the generation of complication.
It except above-mentioned points, is flat-top at the top of the upper sealing 1 of positive pressure feather valve in the present embodiment, in this way in external infusion with connecing
When head is connect with no-needle transfusion connector, load(ing) point is more readily formed in top planes, and fold in upper sealing 1
Afterwards, it is still able to maintain the contact of external infusion connector with upper sealing 1, i.e. external infusion connector can still be given upper close
Envelope portion 1 applies pressure, it is ensured that practical effect；Top planes are easy wiping simultaneously, help to realize before reusing thorough
Bottom disinfection solves the problems, such as that the disinfection of traditional needle-free infusion connector is halfway, effectively reduces patient by the wind of the infection such as bacterium
Danger.
Claims (10)
1. a kind of positive pressure feather valve, it is characterised in that: be made of macromolecular material comprising upper sealing (1) and under
Base portion (3), lower base portion (3) are downward opening tubular, have cavity (2) inside upper sealing (1), the cavity (2) and lower base
Portion (3) inner cavity communicates and deviates the central axes of sealing (1)；When external force acts on upper sealing (1) top from top, on
To side folded deformation occurs for sealing (1)；Upper sealing (1) outer diameter is less than lower base portion (3) outer diameter.
2. positive pressure feather valve according to claim 1, it is characterised in that: the top peripheral protrusion of upper sealing (1) is formed
Sealing ring (12).
3. positive pressure feather valve according to claim 1, it is characterised in that: from top to bottom, the cavity in upper sealing (1)
(2) it is gradually biased to the central axes direction of upper sealing (1) and cavity (2) section is gradually increased.
4. any positive pressure feather valve according to claim 1~3, it is characterised in that: the top of upper sealing (1) is flat
Top.
5. any positive pressure feather valve according to claim 1~3, it is characterised in that: lower base portion (3) inner wall is equipped with one
A built-in inner groovy (4), the setting direction and the setting direction phase of upper sealing (1) internal cavity (2) of the built-in inner groovy (4)
Together.
6. any positive pressure feather valve according to claim 1~3, it is characterised in that: lower base portion (3) inner wall is equipped with number
A built-in inner groovy (4), the setting direction of built-in inner groovy (4) and setting for upper sealing (1) internal cavity (2) positioned at the top
Set that direction is identical, the setting direction of inner groovy (4) is opposite built in neighbouring two.
7. any positive pressure feather valve according to claim 1~3, it is characterised in that: lower base portion (3) outer wall is equipped with one
A external inner groovy (5), the setting direction and the setting direction phase of upper sealing (1) internal cavity (2) of the external inner groovy (5)
Together.
8. any positive pressure feather valve according to claim 1~3, it is characterised in that: lower base portion (3) outer wall is equipped with number
A external inner groovy (5), the setting direction of external inner groovy (5) and setting for upper sealing (1) internal cavity (2) positioned at the top
Set that direction is identical, the setting direction of neighbouring two external inner groovy (5) is opposite.
9. a kind of no-needle transfusion connector, including joint shell (6) and the valve body being located in joint shell (6), it is characterised in that: valve
Body is using the positive pressure feather valve any in claim 1~8, upper sealing (1), the lower base portion (3) point of positive pressure feather valve
Not Wei Yu upper interface in joint shell (6), in cavity of resorption, positive pressure feather valve passes through sealing (1) thereon and upper Interference fit shape
At sealing.
10. no-needle transfusion connector according to claim 9, it is characterised in that: upper interface and cavity of resorption in joint shell (6)
Between use shoulder (8) transition, there are Second gap (9) between the upper sealing (1) and shoulder (8) of positive pressure feather valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811549891.0A CN109498890A (en) | 2018-12-18 | 2018-12-18 | Positive pressure feather valve and no-needle transfusion connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811549891.0A CN109498890A (en) | 2018-12-18 | 2018-12-18 | Positive pressure feather valve and no-needle transfusion connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109498890A true CN109498890A (en) | 2019-03-22 |
Family
ID=65753548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811549891.0A Pending CN109498890A (en) | 2018-12-18 | 2018-12-18 | Positive pressure feather valve and no-needle transfusion connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109498890A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113558974A (en) * | 2020-12-07 | 2021-10-29 | 刘云虎 | Positive and negative pressure non-needle glue valve joint |
| CN114082040A (en) * | 2021-10-12 | 2022-02-25 | 杭州美克恒辉实业有限公司 | Infusion needleless connector with positive pressure elastic valve |
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|---|---|---|---|---|
| US20050010177A1 (en) * | 2003-07-08 | 2005-01-13 | Hsi-Chin Tsai | Injection joint for an intravenous (iv) device tube |
| CA2665722A1 (en) * | 2008-05-21 | 2009-11-21 | Industrie Borla S.P.A. | Valve connector for medical lines |
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| AU2014228618A1 (en) * | 2013-03-13 | 2015-09-03 | Carefusion 303, Inc. | Needleless connector with reduced trapped volume |
| CN203749920U (en) * | 2014-01-27 | 2014-08-06 | 王亚娟 | Positive-pressure needleless connector |
| CN205007428U (en) * | 2015-07-29 | 2016-02-03 | 佳承精工股份有限公司 | Needle injection T type piecing devices are exempted from to malleation |
| CN210159005U (en) * | 2018-12-18 | 2020-03-20 | 山东新华安得医疗用品有限公司 | Positive pressure elastic valve and needleless infusion joint |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113558974A (en) * | 2020-12-07 | 2021-10-29 | 刘云虎 | Positive and negative pressure non-needle glue valve joint |
| CN114082040A (en) * | 2021-10-12 | 2022-02-25 | 杭州美克恒辉实业有限公司 | Infusion needleless connector with positive pressure elastic valve |
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