CN106730119A - A kind of transfusion needleless joint - Google Patents
A kind of transfusion needleless joint Download PDFInfo
- Publication number
- CN106730119A CN106730119A CN201710087207.0A CN201710087207A CN106730119A CN 106730119 A CN106730119 A CN 106730119A CN 201710087207 A CN201710087207 A CN 201710087207A CN 106730119 A CN106730119 A CN 106730119A
- Authority
- CN
- China
- Prior art keywords
- elastic capsule
- enclosing cover
- transfusion
- base
- elastic
- 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.)
- Granted
Links
- 239000002775 capsule Substances 0.000 claims abstract description 75
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 238000001802 infusion Methods 0.000 claims description 11
- 239000013536 elastomeric material Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- 239000013013 elastic material Substances 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 4
- 230000006698 induction Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Vascular Medicine (AREA)
- Pulmonology (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
A kind of transfusion needleless joint, including enclosing cover, elastic capsule and base, the enclosing cover end is rounded, base middle part is provided with the passage flowed through for liquid, elastic capsule is sheathed on channel outer wall, elastic capsule end ovalize, minor axis length ＞ enclosing cover end diameters, oval short-axis direction is provided with a draining hole, draining hole is along two symmetrical outwardly curves of short axle both sides, and the distance of two curves along between long axis direction is gradually reduced from draining hole center to short axle two ends, enclosing cover upper inner is provided with the shoulder of limitation elastic capsule end, stop part is sealed with shoulder and coordinated, base is provided with connecting portion, air discharge duct is offered along passage radially opposite sides；Reasonable in design of the present invention, elastic capsule elliptical head reaches good sealing effectiveness, elastic capsule stop part is sealed with enclosing cover shoulder and coordinated, it is ensured that the sealing of liquid induction system, while also making elastic capsule end be not easy to eject enclosing cover end in the case where its own resilient is acted on.
Description
Technical field
The present invention relates to medical assistance apparatus, and in particular to a kind of transfusion needleless joint.
Background technology
With the development of venous transfusion technology, Needleless seal transfusion technology is also widely used in clinic, and needleless infusion refers to
It is to be not required to puncture the class apparatus that can repeatedly think infusion pipeline conveying or extract liquid, it is transfusion to use no-needle transfusion joint
Passage and injection port are provided.It is the current most complex structure of no-needle transfusion joint, cumbersome, while seal is poor, to patient
Bring the infected probability in infusion process.
The content of the invention
It is an object of the invention to provide a kind of simple structure, easily operated transfusion needleless joint.
To achieve these goals, the present invention uses following scheme：
A kind of transfusion needleless joint, including enclosing cover, elastic capsule and base, the enclosing cover end are rounded, cover bottom portion and
Base is tightly connected, and base middle part is provided with the passage flowed through for liquid, and elastic capsule is sheathed on channel outer wall, elastic capsule
Inwall is brought into close contact with passage, elastic capsule end ovalize, minor axis length ＞ enclosing cover end diameters, oval short axle side
It is provided with a draining hole upwards, draining hole is and two curve edges along two symmetrical outwardly curves of short axle both sides
Distance between long axis direction is gradually reduced from draining hole center to short axle two ends, and enclosing cover upper inner is provided with limitation elastic capsule end
The shoulder in portion, elastic capsule stop part inner surface is round table-like, and the stop part is small end near elastic capsule end side, is stopped
Portion and shoulder are sealed and coordinated, and enclosing cover end is provided with connecting portion, and for being connected with infusion connector, base is provided with connecting portion, for
Remaining needle is connected.
Air discharge duct, the sky between air discharge duct one end connection elastic capsule outer wall and enclosing cover inwall are offered along passage radially opposite sides
Chamber, other end connection are extraneous.
Anti-slip part is provided with outside the base lower end.
The center overlapping of axles of the base centerline, channel center's axle and elastic capsule.
In the elastic capsule, bottom for hollow, its outer wall and inwall are concavo-convex alternate corrugated.
The elastic capsule material is elastomeric material.
The elastomeric material is silica gel, rubber.
By above technical scheme, beneficial effects of the present invention are：The needleless joint reasonable in design that the present invention is provided,
Low-profile, easy to use, the design of elastic capsule had both been easy to liquid to pass through, and in turn ensured that needleless joint sealing property and resistance bacterium
Performance；The elliptical head of elastic capsule is embedded in the rounded ends of enclosing cover, when oval long axis direction is squeezed, draining hole
It is larger along long axis direction deflection, elastic capsule elliptical head can be made to reach good sealing effectiveness, elastic capsule stop part
Sealed with enclosing cover shoulder and coordinated, it is ensured that the sealing of liquid induction system, while also making elastic capsule end be not easy to certainly
The lower ejection enclosing cover end of body elastic force effect, improves the qualification rate in production process.During transfusion, the enclosing cover end of needleless joint connects
Enter transfusion device or syringe adapter, elastic capsule end be also extruded and slided to base direction as enclosing cover end is squeezed
Dynamic, gap is opened, and joint is closed, it is to avoid by extraneous germ contamination, elastic capsule can enter with the channel connection on base
Row transfusion, after recalling infusion connector after the completion of transfusion, elastic capsule resilience resets and closed.
Brief description of the drawings
Fig. 1 is sectional view of the present invention.
Fig. 2 is structural representation of the invention.
Fig. 3 is the schematic diagram that the present invention is connected with infusion connector.
Fig. 4 is base sectional view of the present invention.
Fig. 5 is elastic capsule sectional view.
Specific embodiment
As shown in accompanying drawing 1-5, a kind of transfusion needleless joint, including enclosing cover 2, elastic capsule 3 and base 1, enclosing cover end
21 is rounded, and the bottom of enclosing cover 2 is tightly connected with base 1, and the middle part of base 1 is provided with the passage 1b flowed through for liquid, 3 sets of elastic capsule
On passage 1b outer walls, elastic capsule（3）Inwall and passage（1b ）It is brought into close contact, elastic capsule 3 is movable along passage 1b,
Make liquid be only capable of being flowed in remaining needle along passage 1b, prevent medicine liquid leakage；Elastic capsule end 3a ovalizes, minor axis length ＞
Enclosing cover end diameter, therefore elastic capsule end 3a carries out pressure cooperation with enclosing cover end 21, is set on oval short-axis direction
There is a draining hole, draining hole is that, along two symmetrical outwardly curves of short axle both sides, and two curves are along major axis side
Distance between is gradually reduced from draining hole center to short axle two ends, is extruded by relative direction when on oval long axis direction
When, deflection is big on long axis direction, therefore draining hole deflection on long axis direction is also big, finally causes drawing on short-axis direction
Head piece tight closure；Enclosing cover（2）Upper inner is provided with limitation elastic capsule end（3a）Shoulder（4）, elastic capsule（3）Stop
Portion（3b）Inner surface is round table-like, the stop part（3b）It is small end, stop part near elastic capsule end side（3b）With shoulder
（4）Sealing coordinates, and when needleless joint is not used, elastic capsule is in compressive state, and elastic capsule with certain in enclosing cover
Elasticity, therefore two inwall 3b of elastic capsule end left side are respectively extended out to and fitted with enclosing cover inwall, prevent in itself bullet
In the presence of power outside elastic capsule end 3a extrusion enclosing covers end, scrap needleless joint；Enclosing cover end is provided with connecting portion, uses
It is connected in infusion connector 5, base 1 is provided with connecting portion, is connected for remaining needle.
Due to the stop part 3b of elastic capsule 3 and the close fit of shoulder 4, elastic capsule and outer cover are confined space, are this
Air discharge duct 1a, the sky between air discharge duct 1a one end connection outer wall of elastic capsule 3 and the inwall of enclosing cover 2 are offered along passage 1b radially opposite sides
Chamber, other end connection are extraneous, discharge the air in cavity during transfusion, reduce the resistance of the compression of elastic capsule 3, after transfusion terminates
For alleviating negative pressure in space, accelerate the resilience reset speed of elastic capsule after the completion of transfusion, it is ensured that equipment safety reliability.
Base 1 is provided with anti-slip part outside lower end, and the anti-slip part can be that skid resistance strip or antiskid thread connect with remaining needle
Prevent rubber sleeve from coming off when connecing, improve the security of operation.
The center overlapping of axles of the center line of base 1, the central shaft of passage 5 and elastic capsule 3, elastic capsule 3 is arranged on passage 5
On, when its end crevice is opened, elastic capsule 3 is connected with infusion channel 5, the not water clock when liquid is conveyed.
In elastic capsule, bottom for hollow, its outer wall and inwall are concavo-convex alternate corrugated, and corrugated is easier to elasticity
The contraction of capsule.
The material of elastic capsule 3 is elastomeric material, and elastic capsule 3 uses the other elastomeric material of medical grade, with high-elastic
Property feature, the contraction and resilience of elastic capsule of being more convenient for, while also very safe to patient health non-hazardous.
Elastomeric material is silica gel, rubber.
Operation principle of the invention is：
As shown in Figure 2, before transfusion starts, elastic capsule end carries out pressure cooperation with enclosing cover end, elastic capsule end
Draining hole is centrally along the symmetrical two outwardly curves of short axle, and the distance of two curves along between long axis direction is from drainage
Mouth center is gradually reduced to short-axis direction, and long axis direction is extruded by relative direction, and the deflection that long axis direction occurs is big, draws
Head piece is narrower in the direction, so, above-mentioned crushed element is enough to occupy the space of draining hole, makes draining hole tight closure；Work as nothing
When adapter enclosing cover end is connected to transfusion device or syringe adapter, as shown in accompanying drawing 2,3, enclosing cover end is oppressed, elastic gum
Capsule end is slided under the squeezing action being subject to base direction, because the design of air discharge duct is by elastic capsule outer wall and enclosing cover
Air discharge between wall in sealing cavity, the resistance for compressing waveform elastic capsule is smaller；Such as accompanying drawing 5, elastic capsule end
The constraint of enclosing cover end is broken away from, now the draining hole on short-axis direction opens, and is connected with infusion channel, start work of infusing, it is whole
Individual process elasticity capsule good seal, prevents bacterium from entering infusion channel, it is ensured that the safety of patient, while again due to elastic capsule
For waveform is easier to shrink；Elastic capsule is silica gel material, and with high resiliency, therefore transfusion device, injection are pulled out in transfusion end
During device, elastic capsule springs back to enclosing cover end, minor axis length ＞ enclosing cover end diameters, therefore elastic capsule end elliptical major axis side
To can be squeezed again, again close draining hole.
Above-described is only the preferred embodiment of the present invention, it is noted that for a person skilled in the art,
Under the premise of general idea of the present invention is not departed from, some changes and improvements can also be made, these should also be considered as of the invention
Protection domain.
Claims (7)
1. a kind of transfusion needleless joint, including enclosing cover（2）, elastic capsule（3）And base（1）, it is characterised in that the enclosing cover
End is rounded, enclosing cover（2）Bottom and base（1）It is tightly connected, base（1）Middle part is provided with the passage flowed through for liquid（1b）,
Elastic capsule（3）It is sheathed on passage（1b ）On outer wall, elastic capsule（3）Inwall and passage（1b ）It is brought into close contact, elastic gum
Capsule end（3a）Ovalize, minor axis length ＞ enclosing cover end diameters, oval short-axis direction is provided with a draining hole, drainage
Mouthful it is that, along two symmetrical outwardly curves of short axle both sides, and the distance of two curves along between long axis direction is from drainage
Mouth center is gradually reduced to short axle two ends, enclosing cover（2）Upper inner is provided with limitation elastic capsule end（3a）Shoulder（4）, bullet
Property capsule（3）Stop part（3b）Inner surface is round table-like, the stop part（3b）It is small end near elastic capsule end side, stops
Portion（3b）With shoulder（4）Sealing coordinates, and enclosing cover end is provided with connecting portion, for infusion connector（5）Connection, base（1）It is provided with
Connecting portion, for being connected with remaining needle.
2. transfusion needleless joint as claimed in claim 1, it is characterised in that along passage（1b）Radially opposite sides offer exhaust
Groove（1a）, air discharge duct（1a）One end connects elastic capsule（3）Outer wall and enclosing cover（2）Cavity, the other end connection between inwall is extraneous.
3. transfusion needleless joint as claimed in claim 1, it is characterised in that the base（1）It is provided with outside lower end anti-skidding
Portion.
4. transfusion needleless joint as claimed in claim 1, it is characterised in that the base（1）Center line, passage（1b）In
Heart axle and elastic capsule（3）Center overlapping of axles.
5. transfusion needleless joint as claimed in claim 1, it is characterised in that the elastic capsule（3）In, during bottom is
Sky, its outer wall and inwall are concavo-convex alternate corrugated.
6. transfusion needleless joint as claimed in claim 1, it is characterised in that the elastic capsule（3）Material is elastic material
Material.
7. transfusion needleless joint as claimed in claim 6, it is characterised in that the elastomeric material is silica gel, rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710087207.0A CN106730119B (en) | 2017-02-17 | 2017-02-17 | Needleless connector for transfusion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710087207.0A CN106730119B (en) | 2017-02-17 | 2017-02-17 | Needleless connector for transfusion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106730119A true CN106730119A (en) | 2017-05-31 |
| CN106730119B CN106730119B (en) | 2023-05-02 |
Family
ID=58957403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710087207.0A Active CN106730119B (en) | 2017-02-17 | 2017-02-17 | Needleless connector for transfusion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106730119B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107684645A (en) * | 2017-09-19 | 2018-02-13 | 江苏苏云医疗器材有限公司 | Medical connector |
| CN108030976A (en) * | 2018-01-17 | 2018-05-15 | 威海洁瑞医用制品有限公司 | Positive pressure threeway is transfused attachment device |
| CN108339172A (en) * | 2017-09-19 | 2018-07-31 | 锦州诺德医疗器械科技有限公司 | A kind of automatic washing pipe device |
| CN110694137A (en) * | 2019-11-04 | 2020-01-17 | 上海康德莱企业发展集团股份有限公司 | Seamless filling needle-free dosing connector |
| CN114557886A (en) * | 2022-01-21 | 2022-05-31 | 宁波汉科医疗器械有限公司 | Needleless connector and medicine adding assembly |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10192415A (en) * | 1996-12-27 | 1998-07-28 | Jms Co Ltd | Needleless lateral injection pipe |
| CN1879902A (en) * | 2006-02-22 | 2006-12-20 | 张亚平 | Needle-free closed transfusion adaptor |
| CN1899633A (en) * | 2006-07-21 | 2007-01-24 | 张亚平 | Needleless seal transfusion joint |
| CN201880205U (en) * | 2010-10-29 | 2011-06-29 | 李丹青 | Integrated germproof needle-less closed transfusion joint |
| WO2015081802A1 (en) * | 2013-12-03 | 2015-06-11 | 上海康德莱企业发展集团医疗器械有限公司 | Needle-less dosing infusion positive pressure connector |
| CN205041878U (en) * | 2015-08-28 | 2016-02-24 | 北京天地和协科技有限公司 | Infusion of needleless malleation connects |
| CN205832284U (en) * | 2016-05-12 | 2016-12-28 | 广东爱迪医疗科技有限公司 | A kind of positive pressure needle-free infusion connector |
| CN207445281U (en) * | 2017-02-17 | 2018-06-05 | 河南曙光汇知康生物科技股份有限公司 | A kind of infusion needleless joint |
-
2017
- 2017-02-17 CN CN201710087207.0A patent/CN106730119B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10192415A (en) * | 1996-12-27 | 1998-07-28 | Jms Co Ltd | Needleless lateral injection pipe |
| CN1879902A (en) * | 2006-02-22 | 2006-12-20 | 张亚平 | Needle-free closed transfusion adaptor |
| CN1899633A (en) * | 2006-07-21 | 2007-01-24 | 张亚平 | Needleless seal transfusion joint |
| CN201880205U (en) * | 2010-10-29 | 2011-06-29 | 李丹青 | Integrated germproof needle-less closed transfusion joint |
| WO2015081802A1 (en) * | 2013-12-03 | 2015-06-11 | 上海康德莱企业发展集团医疗器械有限公司 | Needle-less dosing infusion positive pressure connector |
| CN205041878U (en) * | 2015-08-28 | 2016-02-24 | 北京天地和协科技有限公司 | Infusion of needleless malleation connects |
| CN205832284U (en) * | 2016-05-12 | 2016-12-28 | 广东爱迪医疗科技有限公司 | A kind of positive pressure needle-free infusion connector |
| CN207445281U (en) * | 2017-02-17 | 2018-06-05 | 河南曙光汇知康生物科技股份有限公司 | A kind of infusion needleless joint |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107684645A (en) * | 2017-09-19 | 2018-02-13 | 江苏苏云医疗器材有限公司 | Medical connector |
| CN108339172A (en) * | 2017-09-19 | 2018-07-31 | 锦州诺德医疗器械科技有限公司 | A kind of automatic washing pipe device |
| CN108339172B (en) * | 2017-09-19 | 2024-05-03 | 杨恚 | Automatic pipe flushing device |
| CN108030976A (en) * | 2018-01-17 | 2018-05-15 | 威海洁瑞医用制品有限公司 | Positive pressure threeway is transfused attachment device |
| CN110694137A (en) * | 2019-11-04 | 2020-01-17 | 上海康德莱企业发展集团股份有限公司 | Seamless filling needle-free dosing connector |
| CN110694137B (en) * | 2019-11-04 | 2021-10-01 | 上海康德莱企业发展集团股份有限公司 | Seamless filling needle-free dosing connector |
| CN114557886A (en) * | 2022-01-21 | 2022-05-31 | 宁波汉科医疗器械有限公司 | Needleless connector and medicine adding assembly |
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| Publication number | Publication date |
|---|---|
| CN106730119B (en) | 2023-05-02 |
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