CN112169083B - Needleless administration joint with neutral pressure - Google Patents
Needleless administration joint with neutral pressure Download PDFInfo
- Publication number
- CN112169083B CN112169083B CN202011107964.8A CN202011107964A CN112169083B CN 112169083 B CN112169083 B CN 112169083B CN 202011107964 A CN202011107964 A CN 202011107964A CN 112169083 B CN112169083 B CN 112169083B
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- CN
- China
- Prior art keywords
- luer connector
- female luer
- rubber plug
- support ring
- administration
- 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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Classifications
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- 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
- A61M5/178—Syringes
- A61M5/31—Details
-
- 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
- A61M5/178—Syringes
- A61M5/30—Syringes for injection by jet action, without needle, e.g. for use with replaceable ampoules or carpules
-
- 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
- A61M2039/1033—Swivel nut connectors, e.g. threaded connectors, bayonet-connectors
Abstract
The invention relates to the technical field of medical appliances, in particular to a needle-free administration joint with neutral pressure, which comprises: the flexible plug comprises a female luer connector, an open rubber plug, a support ring, a flexible valve and a male luer connector; the female luer connector is used for connecting an external bypass drug delivery system; the male luer connector is used for connecting an external infusion system; in the administration process, the opening rubber plug is pressed to deform, the flexible valve is popped out from the support ring, so that a passage is formed between the female luer connector and the male luer connector, and after the administration is finished, the opening rubber plug is restored to the original state, so that the passage is closed; when the female luer connector is subjected to reverse pressure, the flexible valve is close to one side of the support ring, so that a channel between the female luer connector and the male luer connector is closed, and the backflow condition is prevented. The needleless administration joint can realize the administration process by opening and closing the path, can prevent the backflow phenomenon, and is safe, reliable and convenient to use.
Description
Technical Field
The invention relates to the technical field of medical appliances, in particular to a needle-free administration joint with neutral pressure.
Background
Needleless injection is a new injection technology and is just beginning to be applied to clinic in recent years. The technology is characterized in that a needle is not needed during medicine injection, and liquid medicine directly enters body tissues in an ultrafine, high-speed and straight-line spraying mode, so that the problems of psychological pressure, infection, tissue injury, bleeding, pain and the like of a patient caused by the fact that a head of a patient is penetrated into a body in the traditional injection are solved; meanwhile, the distribution of the drug injected without needle in the tissue is more dispersed, which is beneficial to the absorption of the drug, the bioavailability of the drug is improved, and the peak value of the blood concentration can come in advance.
Currently, needleless injection devices are a specific application of the technology, and are a general term for a large class of devices, which can have different clinical application functions, different forms, and different designs and implementations. Needleless injection is mainly used for the injection of liquid medicine, satisfy meticulous, wicresoft, the higher accurate of dispersion requirement is penetrated, the injection and the injection of regular injection, the injection of special crowd (children, psychological pressure crowd, high risk infection) of special position, but the joint of dosing that current needleless injection device used is when using, because its sealed effect is poor to and the backward flow situation easily appears, lead to dosing to connect the unable permanent infusion pipeline of keeping somewhere on the patient, the practicality of joint of dosing is low, the daily operation of medical personnel of being not convenient for. In view of this, we propose a needle-free administration hub with neutral pressure.
Disclosure of Invention
The present invention is directed to a needle-free administration set with neutral pressure to solve the problems set forth in the background above.
In order to achieve the purpose, the invention provides the following technical scheme:
a needle-free administration hub having a neutral pressure, the needle-free administration hub comprising: the flexible plug comprises a female luer connector, an open rubber plug, a support ring, a flexible valve and a male luer connector;
the female luer connector is used for connecting an external bypass drug delivery system;
the male luer connector is used for connecting an external infusion system;
one end of the opening rubber plug extends into the opening of the female luer connector;
the side of the support ring close to the female luer connector supports the opening rubber plug, and the flexible valve is arranged on the side of the support ring close to the male luer connector;
in the administration process, the opening rubber plug is pressed to deform, the flexible valve is popped out from the support ring, so that a passage is formed between the female luer connector and the male luer connector, and after the administration is finished, the opening rubber plug is restored to the original state, so that the passage is closed;
when the female luer connector is subjected to reverse pressure, the flexible valve is close to one side of the support ring, so that a channel between the female luer connector and the male luer connector is closed, and the backflow condition is prevented.
Preferably, the proximal end of the open rubber plug is sleeved on the seat body arranged on the inner ring of the support ring, and the distal end of the open rubber plug is inserted into the opening of the female luer connector in a columnar shape.
Preferably, the flexible valve consists of a circular ring, an S-shaped elastic connecting rod and a rubber column,
the rubber column is arranged at the center of the inner ring of the circular ring and is in inserted fit with the inner ring of the support ring;
the S-shaped elastic connecting rods are arranged in a plurality and used for connecting the circular ring and the rubber column.
Preferably, the inner wall of the female luer connector is provided with a plurality of projections with anti-skidding effect.
Preferably, the inner wall of the male luer connector is conical, and the inner wall is provided with flow guide lines.
Compared with the prior art, the invention has the beneficial effects that: the needleless administration joint with the neutral pressure ensures that the neutral pressure is maintained in the device, not only can the administration process be completed by opening and closing the circuit, but also the backflow phenomenon can be prevented, and the needleless administration joint with the neutral pressure is safe, reliable and convenient to use.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic front-side exploded view of the overall structure of the present invention;
FIG. 3 is a schematic view of the overall structure of the present invention, shown disassembled from the back;
FIG. 4 is a schematic structural view of a flexible valve according to the present invention;
FIG. 5 is a schematic view of a female luer fitting of the present invention;
fig. 6 is a schematic view of a male luer of the present invention.
In the figure: 1. a female luer fitting; 11. a protrusion; 2. opening a rubber plug; 3. a support ring; 31. a base body; 4. a flexible valve; 41. a circular ring; 42. an S-shaped elastic connecting rod; 43. a glue column; 5. a male luer fitting; 51. and (6) flow guide lines.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
As shown in fig. 1-3, a needle-free connector with neutral pressure, the needle-free connector comprising: the rubber plug comprises a female luer connector 1, an open rubber plug 2, a support ring 3, a flexible valve 4 and a male luer connector 5;
the female luer connector 1 is used for connecting an external bypass administration system, such as a syringe and the like;
the male luer connector 5 is used for connecting an external infusion system, such as an infusion pipeline connected to a blood vessel of a patient;
one end of the open rubber plug 2 extends into the opening of the female luer connector 1;
one side of the support ring 3 close to the female luer connector 1 supports the opening rubber plug 2, and the flexible valve 4 is arranged on one side of the support ring 3 close to the male luer connector 5;
in the administration process, the opening rubber plug 2 is pressed to deform, and the flexible valve 4 is popped out from the support ring 3, so that a passage is formed between the female luer connector 1 and the male luer connector 5, and after the administration is finished, the opening rubber plug 2 is restored to the original state, so that the passage is closed;
when the female luer connector 1 is subjected to reverse pressure, the flexible valve 4 is close to one side close to the support ring 3, so that a passage between the female luer connector 1 and the male luer connector 5 is closed, and the backflow condition is prevented.
In the embodiment, the proximal end of the open rubber plug 2 is sleeved on the seat body 31 arranged on the inner ring of the support ring 3, the distal end of the open rubber plug 2 is in a columnar shape and is inserted into the opening of the female luer connector 1, and in the administration process, the open rubber plug 2 deforms under the supporting action of the support ring 3 and the pressure action of the liquid medicine, so that the end of the open rubber plug 2 inserted into the opening of the female luer connector 1 deforms, a passage is formed between the female luer connector 1 and the male luer connector 5, and the administration is completed.
As shown in fig. 4, the flexible valve 4 is composed of a circular ring 41, an S-shaped elastic connecting rod 42 and a rubber column 43, wherein the rubber column 43 is arranged at the center of the inner ring of the circular ring 41 and is in inserted fit with the inner ring of the support ring 3; the plurality of S-shaped elastic connecting rods 42 are used for connecting the circular ring 41 and the rubber column 43, the flexible valve 4 is used for preventing backflow, and specifically, when liquid flows back from the male luer 5 to the female luer 1, the S-shaped elastic connecting rods 42 can be displaced under the action of a small liquid flow force, so that the rubber column 43 extends into the inner ring of the support ring 3 under the action of the liquid flow force, the inner ring of the support ring 3 is closed, a passage is prevented from being formed between the female luer 1 and the male luer 5, and backflow prevention is achieved.
As shown in fig. 5, the inner wall of the female luer 1 is provided with a plurality of protrusions 11 for anti-slip, and the protrusions 11 are used for anti-slip of the open rubber plug 2, so that the open rubber plug is more easily deformed under the pressure of liquid to form a passage.
As shown in fig. 6, the inner wall of the male luer 5 is tapered, and the inner wall is provided with a flow guiding line 51, the flow guiding line 51 enables the passing liquid to pass through the male luer 5 at a constant speed and be delivered to a patient, so that the practicability of the needleless administration connector is improved.
When the needleless administration connector with neutral pressure is used, in the administration process, the open rubber plug 2 is pressed to deform, the flexible valve 4 is popped out from the support ring 3, meanwhile, the rubber column 43 of the flexible valve 4 extends out of the support ring 3 under the action of the flow force of liquid, so that a passage is formed between the female luer connector 1 and the male luer connector 5, and after the administration is finished, the open rubber plug 2 is restored to the original state, so that the passage is closed;
in addition, when the female luer connector 1 is subjected to reverse pressure, the flexible valve 4 is close to one side close to the support ring 3, so that a passage between the female luer connector 1 and the male luer connector 5 is closed, the backflow situation is prevented, a neutral pressure is maintained in the needleless administration connector, the administration process can be completed by opening and closing the passage, the backflow phenomenon can be prevented, and the needleless administration connector is safe, reliable and convenient to use.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. A needle-free adaptor with neutral pressure, said needle-free adaptor comprising: the rubber plug comprises a female luer connector (1), an open rubber plug (2), a support ring (3), a flexible valve (4) and a male luer connector (5);
the female luer connector (1) is used for connecting an external bypass drug delivery system;
the male luer connector (5) is used for connecting an external infusion system;
one end of the open rubber plug (2) extends into the opening of the female luer connector (1);
the side of the support ring (3) close to the female luer connector (1) supports the open rubber plug (2), and the flexible valve (4) is arranged on the side of the support ring (3) close to the male luer connector (5);
in the administration process, the open rubber plug (2) is pressed and deformed, and the flexible valve (4) is ejected from the support ring (3), so that a passage is formed between the female luer connector (1) and the male luer connector (5), and after the administration is finished, the open rubber plug (2) is restored to the original state, so that the passage is closed;
when the female luer connector (1) is subjected to reverse pressure, the flexible valve (4) is close to one side close to the support ring (3), so that a passage between the female luer connector (1) and the male luer connector (5) is closed, and the backflow condition is prevented;
the flexible valve (4) consists of a circular ring (41), an S-shaped elastic connecting rod (42) and a rubber column (43),
the rubber column (43) is arranged at the center of the inner ring of the circular ring (41) and is in inserted fit with the inner ring of the support ring (3);
the S-shaped elastic connecting rods (42) are provided with a plurality of connecting rods for connecting the circular ring (41) and the rubber column (43).
2. The needle-free neutral pressure administration adaptor according to claim 1, wherein: the near end of the opening rubber plug (2) is sleeved on the seat body (31) arranged on the inner ring of the support ring (3), and the far end of the opening rubber plug (2) is inserted into the opening of the female luer connector (1) in a columnar shape.
3. The needle-free neutral pressure administration adaptor according to claim 1, wherein: the inner wall of the female luer connector (1) is provided with a plurality of protrusions (11) with anti-skidding effect.
4. The needle-free neutral pressure administration adaptor according to claim 1, wherein: the inner wall of the male luer connector (5) is conical, and flow guide lines (51) are arranged on the inner wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011107964.8A CN112169083B (en) | 2020-10-16 | 2020-10-16 | Needleless administration joint with neutral pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011107964.8A CN112169083B (en) | 2020-10-16 | 2020-10-16 | Needleless administration joint with neutral pressure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112169083A CN112169083A (en) | 2021-01-05 |
| CN112169083B true CN112169083B (en) | 2022-09-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011107964.8A Active CN112169083B (en) | 2020-10-16 | 2020-10-16 | Needleless administration joint with neutral pressure |
Country Status (1)
| Country | Link |
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| CN (1) | CN112169083B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US6409707B1 (en) * | 1999-10-22 | 2002-06-25 | Industrie Borla Spa | Anti-siphon valve for medical infusion lines and the like |
| CN1440305A (en) * | 2000-06-29 | 2003-09-03 | 雀巢制品公司 | Medium cracking pressure valve arrangement |
| CN101052428A (en) * | 2004-10-25 | 2007-10-10 | 小P·罗恩·史密斯 | Medical connector |
| CN101224320A (en) * | 2007-01-17 | 2008-07-23 | 伯尔拉工业有限公司 | One-way valve for medical infusion lines and the like |
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| CN209173086U (en) * | 2018-07-27 | 2019-07-30 | 惠州阵安实业有限公司 | A kind of infusion connector |
| CN111097085A (en) * | 2018-10-25 | 2020-05-05 | 陈戴毅 | Needle-free connector |
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| GB201513876D0 (en) * | 2015-08-05 | 2015-09-16 | Armstrong Russell W | Plumbing device |
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| CN204647447U (en) * | 2015-05-14 | 2015-09-16 | 宁波波特气动元件有限公司 | A kind of rotary type one-way throttle valve |
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2020
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Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6409707B1 (en) * | 1999-10-22 | 2002-06-25 | Industrie Borla Spa | Anti-siphon valve for medical infusion lines and the like |
| CN1440305A (en) * | 2000-06-29 | 2003-09-03 | 雀巢制品公司 | Medium cracking pressure valve arrangement |
| CN101052428A (en) * | 2004-10-25 | 2007-10-10 | 小P·罗恩·史密斯 | Medical connector |
| CN101466421A (en) * | 2006-06-14 | 2009-06-24 | 阿西斯特医疗系统有限公司 | Fluid purge in a medical injection system |
| CN101224320A (en) * | 2007-01-17 | 2008-07-23 | 伯尔拉工业有限公司 | One-way valve for medical infusion lines and the like |
| CN202787403U (en) * | 2012-09-17 | 2013-03-13 | 福建欧联卫浴有限公司 | Water saving device |
| CN206026779U (en) * | 2016-05-12 | 2017-03-22 | 广东爱迪医疗科技有限公司 | Prevent that airtight infusion of reverse -flow needleless connects |
| CN207599052U (en) * | 2017-10-16 | 2018-07-10 | 江阴市鸿萌橡塑制品有限公司 | A kind of Medical check valve |
| CN209173086U (en) * | 2018-07-27 | 2019-07-30 | 惠州阵安实业有限公司 | A kind of infusion connector |
| CN209180548U (en) * | 2018-09-26 | 2019-07-30 | 陈旭辉 | A kind of quick coupling |
| CN111097085A (en) * | 2018-10-25 | 2020-05-05 | 陈戴毅 | Needle-free connector |
| CN110025884A (en) * | 2019-04-02 | 2019-07-19 | 台州市路桥瑞豪科技有限公司 | A kind of female Luer |
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| Publication number | Publication date |
|---|---|
| CN112169083A (en) | 2021-01-05 |
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