CN113558974B - A positive and negative pressure needle-free rubber valve connector - Google Patents
A positive and negative pressure needle-free rubber valve connector Download PDFInfo
- Publication number
- CN113558974B CN113558974B CN202011419786.2A CN202011419786A CN113558974B CN 113558974 B CN113558974 B CN 113558974B CN 202011419786 A CN202011419786 A CN 202011419786A CN 113558974 B CN113558974 B CN 113558974B
- Authority
- CN
- China
- Prior art keywords
- rubber valve
- valve
- glue valve
- shell
- upper shell
- 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.)
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Links
- 239000007788 liquid Substances 0.000 claims abstract description 35
- 230000008719 thickening Effects 0.000 claims abstract description 15
- 230000014759 maintenance of location Effects 0.000 claims abstract description 8
- 239000003292 glue Substances 0.000 claims description 29
- 238000002347 injection Methods 0.000 abstract description 12
- 239000007924 injection Substances 0.000 abstract description 12
- 238000003780 insertion Methods 0.000 abstract description 2
- 230000037431 insertion Effects 0.000 abstract description 2
- 239000003814 drug Substances 0.000 description 7
- 238000013461 design Methods 0.000 description 4
- 238000001802 infusion Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241000463219 Epitheca Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
- A61J1/14—Details; Accessories therefor
- A61J1/1412—Containers with closing means, e.g. caps
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
- A61J1/14—Details; Accessories therefor
- A61J1/1475—Inlet or outlet ports
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Pharmacology & Pharmacy (AREA)
- Engineering & Computer Science (AREA)
- Hematology (AREA)
- Biomedical Technology (AREA)
- Anesthesiology (AREA)
- Pulmonology (AREA)
- Check Valves (AREA)
Abstract
本发明涉及医疗用品领域，公开了一种正负压无针胶阀接头。该接头包括胶阀、上壳和下壳，胶阀顶部设有顶盖，内部设有空腔，上壳顶部设有开口，下壳底部设有出液口，出液口与空腔连通，胶阀上壳内，开口与顶盖相紧贴，上壳与下壳固定连接，胶阀的底边贴合在下壳内壁上，胶阀与上壳之间设有环形的液体滞留腔，在空腔内沿着胶阀纵向的设置有一条加厚层，加厚层起始于顶盖下端面。本接头内的胶阀能向固定方向倾斜，从而解决解决决注射口插入困难且不稳定的问题。
The present invention relates to the field of medical supplies, and discloses a positive and negative pressure needle-free rubber valve connector. The connector includes a rubber valve, an upper shell and a lower shell. A top cover is provided on the top of the rubber valve, a cavity is provided inside, an opening is provided on the top of the upper shell, a liquid outlet is provided on the bottom of the lower shell, the liquid outlet is connected to the cavity, the opening is tightly attached to the top cover in the upper shell of the rubber valve, the upper shell and the lower shell are fixedly connected, the bottom edge of the rubber valve is attached to the inner wall of the lower shell, an annular liquid retention cavity is provided between the rubber valve and the upper shell, and a thickening layer is provided in the cavity along the longitudinal direction of the rubber valve, and the thickening layer starts from the lower end face of the top cover. The rubber valve in this connector can be tilted in a fixed direction, thereby solving the problem of difficult and unstable insertion of the injection port.
Description
Technical Field
The invention relates to the field of medical supplies, in particular to a positive and negative pressure needleless glue valve joint.
Background
In recent years, with the innovation and development of technology, various needleless infusion connectors with the focus of safety injection of various linwang have been inoculated. Needleless infusion connectors have also undergone previous blunt needle designs, complex mechanical valves to today's simple and transparent positive pressure needleless connectors. In the existing design, the inclined direction of the internal rubber valve of the needleless connector is not fixed, a user often needs a long time to insert the injection port into the needle, and meanwhile, the injection port is not inserted stably due to the fact that the inclined direction of the rubber valve is not fixed, so that the problems of liquid leakage and the like exist.
Disclosure of Invention
The invention solves the technical problem of providing a needleless joint with a rubber valve capable of inclining towards a fixed direction, and solving the problems of difficult and unstable insertion of an injection port.
In order to solve the problems, the invention provides a technical scheme that the positive and negative pressure needleless rubber valve joint comprises a rubber valve, an upper shell and a lower shell;
The rubber valve comprises an upper half part, a lower half part and an inclined shoulder, wherein the radius of the upper half part is smaller than that of the lower half part, the upper half part and the lower half part are coaxial and fixedly connected through the inclined shoulder, a top cover is arranged at the top end of the upper half part, and cavities are formed in the upper half part and the lower half part of the rubber valve;
the upper shell comprises a head part, a tail part and an inclined wall, wherein the radius of the head part is smaller than that of the tail part, the head part and the tail part are coaxial, and are fixedly connected through the inclined wall, and the top end of the head part is provided with an opening;
the bottom of the lower shell is provided with a liquid outlet which is communicated with the cavity;
the upper half part of the rubber valve is arranged in the head part of the upper shell, the opening is tightly attached to the top cover, the lower half part of the rubber valve is arranged in the tail part of the upper shell, the inclined shoulder is tightly attached to the inclined wall, the upper shell is fixedly connected with the lower shell, the bottom edge of the lower half part of the rubber valve is tightly attached to the inner wall of the lower shell, and an annular liquid retention cavity is arranged between the lower half part of the rubber valve and the tail part of the upper shell;
a thickening layer is longitudinally arranged in the cavity along the rubber valve, and starts from the lower end face of the top cover.
Further, the lower half part of the rubber valve is provided with a positioning hole, the positioning hole and the thickening layer are on the same longitudinal line, and the positioning hole is a through hole or a blind hole.
Further, the glue valve is provided with a liquid flowing hole, and the liquid flowing hole is opposite to the thickened layer.
Further, the thickening layer ends in the lower half of the glue valve.
Further, the inner wall of the lower half part of the rubber valve is a horn mouth with a big mouth facing downwards.
Further, the lower edge of the top cover is a cambered surface.
Further, the liquid outlet is provided with a luer connector.
The invention has the beneficial effects that:
1. the utility model provides a needleless glue valve of positive negative pressure connects, through the thin wall thick wall design of inside glue valve for the glue valve can be to fixed direction slope, thereby solves and decides injection port and inserts difficulty and unstable problem.
2. Through top cap and epitheca open-ended seal design, prevent the invasion of bacterium, set up the top cap lower limb into the arc simultaneously, resistance when can effectively reduce the glue valve and kick-back.
3. By arranging the fluid holes on the thin wall of the rubber valve, the medicine flow can be increased.
4. Through set up the locating hole on the rubber valve thick wall, can let the rubber valve to fixed direction slope deformation better.
5. The side wall of the rubber valve is provided with an inclined angle, so that the medicine flow is more convenient.
Drawings
FIG. 1 is a cross-sectional view of an embodiment of the present invention;
in the figure, reference numerals are a rubber valve 1, a top cover 11, a cavity 12, a thickening layer 13, a liquid flowing hole 15, a positioning hole 16, an inclined shoulder 17, an upper shell 2, an opening 21, a liquid retention cavity 22, an inclined wall 23, a lower shell 3 and a liquid outlet 31.
Detailed Description
The embodiment shown in fig. 1 is a positive and negative pressure needleless glue valve joint according to the invention, and comprises a glue valve 1, an upper shell 2 and a lower shell 3.
The rubber valve 1 comprises an upper half part, a lower half part and an inclined shoulder 17, wherein the radius of the upper half part is smaller than that of the lower half part, the upper half part and the lower half part are coaxial, the upper half part and the lower half part are fixedly connected through the inclined shoulder 17, the top end of the upper half part is provided with a top cover 11, and the lower edge of the top cover 11 is a cambered surface. The inner wall of the lower half part of the rubber valve 1 is a horn mouth with a big mouth facing downwards, and the upper half part and the lower half part are provided with cavities 12. A thickening layer 13 is longitudinally arranged in the cavity 12 along the glue valve 1, and the thickening layer 13 starts from the lower end surface of the top cover 11 and ends in the middle of the lower half. The lower half part of the rubber valve 1 is provided with a positioning hole 16 and a liquid flowing hole 15, the positioning hole 16 and the thickening layer 13 are on the same longitudinal line, the positioning hole 16 can be a through hole or a blind hole, and the positions of the liquid flowing hole 15 and the positioning hole 16 are staggered and opposite up and down.
The upper shell 2 comprises a head portion and a tail portion and the inclined wall 23 has a smaller head radius than the tail portion, the head and the tail are coaxial, and are fixedly connected through an inclined wall 23, and the top end of the head is provided with an opening 21.
The bottom of the lower shell 3 is provided with a liquid outlet 31, the liquid outlet 31 is communicated with the cavity 12, and the periphery is provided with a luer connector. The luer connector is connected with a hose.
The upper half of the rubber valve 1 is arranged in the head of the upper shell 2, an opening 21 is tightly attached to the top cover 11, the lower half of the rubber valve 1 is arranged in the tail of the upper shell 2, an inclined shoulder 17 is tightly attached to an inclined wall 23, the upper shell 2 is connected with the lower shell 3 by means of a buckle, the bottom edges of the lower half of the rubber valve 1 are attached to the inner wall of the lower shell, the rubber valve 1 can be separated from each other when being deformed under pressure, an annular gap is formed between the upper half of the rubber valve 1 and the head of the upper shell 2, and an annular liquid retention cavity 22 is formed between the lower half of the rubber valve 1 and the tail of the upper shell 2.
When the injection valve is used, the top cover of the rubber valve 1 is extruded through the injection port, the rubber valve 1 is positioned by using the positioning hole 16, the bottom end of the thickening layer 13 is used as a fulcrum, the rubber valve is deformed in a tilting way in opposite directions, the volume of the cavity 12 in the rubber valve 1 is contracted, the inclined shoulder 17 is separated from the inclined wall 23, and medicines flow into the liquid retention cavity 22 along the side wall of the rubber valve 1 from the opening 21.
In the invention, two positive pressure modes exist, namely, the positioning hole 16 of the glue valve 1 is oppositely provided with the liquid flowing hole 15, and at the moment, the medicine remained in the liquid retention cavity 22 can enter the inner cavity of the glue valve 1 along the liquid flowing hole 15. When the injection is near the end, the hose arranged outside the liquid outlet 31 is clamped, then the injection port is pulled out, and the rubber valve 1 is restored to the original state, at the moment, the hose does not flow back, and positive pressure is formed. The second positive pressure method is different from the first method in that the positioning hole 16 is opposed to the liquid flow hole 15. Because the glue valve 1 is pressed and is inclined and deformed by taking the bottom of the thickening layer 13 as a fulcrum, the bottom of the glue valve 1 can be separated from the lower shell to form a tiny liquid flow passage, and the medicine in the liquid retention cavity 22 can enter the cavity in the glue valve 1 along the liquid flow passage.
The negative pressure mode of the invention is different from the positive pressure mode, when the injection is finished, the connecting pipe arranged outside the liquid outlet 31 is not clamped, the injection port is pulled out at the moment, the rubber valve 1 is restored to the original state, the volume of the cavity 12 is increased, and medicine can be sucked into the inner cavity of the rubber valve 1 along the liquid outlet 31 to form medicine reflux.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011419786.2A CN113558974B (en) | 2020-12-07 | 2020-12-07 | A positive and negative pressure needle-free rubber valve connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011419786.2A CN113558974B (en) | 2020-12-07 | 2020-12-07 | A positive and negative pressure needle-free rubber valve connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113558974A CN113558974A (en) | 2021-10-29 |
| CN113558974B true CN113558974B (en) | 2025-01-21 |
Family
ID=78158851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011419786.2A Active CN113558974B (en) | 2020-12-07 | 2020-12-07 | A positive and negative pressure needle-free rubber valve connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113558974B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109498890A (en) * | 2018-12-18 | 2019-03-22 | 山东新华安得医疗用品有限公司 | Positive pressure feather valve and no-needle transfusion connector |
| CN214550272U (en) * | 2020-12-07 | 2021-11-02 | 刘云虎 | Positive and negative pressure non-needle glue valve joint |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7140592B2 (en) * | 2002-12-31 | 2006-11-28 | Cardinal Health 303, Inc. | Self-sealing male Luer connector with biased valve plug |
| EP1639286B1 (en) * | 2003-06-17 | 2014-12-03 | Filtertek Inc. | Fluid handling device |
| ITTO20040524A1 (en) * | 2004-07-27 | 2004-10-27 | Borla Ind | VALVE CONNECTOR FOR MEDICAL INFUSION LINES |
| US8636720B2 (en) * | 2009-11-16 | 2014-01-28 | Carefusion 303, Inc. | Needleless access connectors and valve elements therefor |
| CN201840715U (en) * | 2010-07-12 | 2011-05-25 | 上海康德莱企业发展集团医疗器械有限公司 | Needle-free medicine adding positive pressure connector |
| US9067049B2 (en) * | 2011-07-25 | 2015-06-30 | Carefusion 303, Inc. | Providing positive displacement upon disconnection using a connector with a dual diaphragm valve |
| CN202751639U (en) * | 2012-06-08 | 2013-02-27 | 苏州林华医疗器械有限公司 | Positive-pressure and pin-free connection piece |
| CN103751878B (en) * | 2014-01-27 | 2016-03-16 | 王亚娟 | Positive pressure needle-free connector |
| CN204671650U (en) * | 2015-05-20 | 2015-09-30 | 宁湘龙 | A kind of medical Needleless barotropic joint |
| CN205007360U (en) * | 2015-07-29 | 2016-02-03 | 佳承精工股份有限公司 | Positive pressure needle-free injection cap |
| 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 |
-
2020
- 2020-12-07 CN CN202011419786.2A patent/CN113558974B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109498890A (en) * | 2018-12-18 | 2019-03-22 | 山东新华安得医疗用品有限公司 | Positive pressure feather valve and no-needle transfusion connector |
| CN214550272U (en) * | 2020-12-07 | 2021-11-02 | 刘云虎 | Positive and negative pressure non-needle glue valve joint |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113558974A (en) | 2021-10-29 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20250220 Address after: 214000 Wuxi Zhongguancun Software Park, Wuxi City, Jiangsu Province 24-202 Patentee after: Wuxi Jingyuan Precision Rubber Technology Co.,Ltd. Country or region after: China Address before: 214000 Room 202, No. 133, Xiangmei Garden, New District, Wuxi City, Jiangsu Province Patentee before: Liu Yunhu Country or region before: China |
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| TR01 | Transfer of patent right |