CN104758997A - Integrated micro-resistance needle-free anti-counterflow infusion positive pressure connector - Google Patents
Integrated micro-resistance needle-free anti-counterflow infusion positive pressure connector Download PDFInfo
- Publication number
- CN104758997A CN104758997A CN201510183030.5A CN201510183030A CN104758997A CN 104758997 A CN104758997 A CN 104758997A CN 201510183030 A CN201510183030 A CN 201510183030A CN 104758997 A CN104758997 A CN 104758997A
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- Prior art keywords
- positive pressure
- pressure connector
- needleless
- infusion
- resistance
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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
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
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- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention provides an integrated micro-resistance needle-free anti-counterflow infusion positive pressure connector. Mainly, a medicine feed tube and a positive pressure connector tube are integrally connected in a Y shape. The positive pressure connector tube is mainly composed of a cathode opening, an anode opening and an oval base, the anode opening is provided with a 6:100 Luer taper and can be connected with an indwelling needle, and the Luer taper can be provided with a flange or provided with an inner double-end English system right hand thread. The outer surface of the cathode opening is provided with a double-end English system right hand thread and can be connected with an infusion connector, a positive pressure one-way valve is arranged on the inner wall of the base, and the port of the medicine feed tube is connected with an end socket or a heparin cap. The integrated micro-resistance needle-free anti-counterflow infusion positive pressure connector has the advantages that by the adoption of the integral forming mode, the structure is simple, and cost is reduced; by the adoption of the oval base, a flow channel of the positive pressure connector is ingeniously enlarged in a fixed space; the design of a smooth route is added to the position where the medicine feed tube is designed; the taper can be provided with the flange or the inner thread so that the integrated micro-resistance needle-free anti-counterflow infusion positive pressure connector can adapt to different crowds and working environments when used.
Description
Technical field
The present invention relates to medical instruments field, be particularly a kind ofly applicable to the special resistance needleless Anti-reflux infusion positive pressure connector that integrally declines of infusion set.
Background technology
along with improving constantly of nursing technique; the continuous renewal of medical supplies; remaining needle has been safest Centesis instrument by world health organisation recommendations; it is easy and simple to handle; repeated localised puncture can be reduced, protect blood vessel and alleviate patient's misery; facilitate clinical application and emergency rescue, alleviate nurse job amount, be now widely used in clinical.
Positive pressure connector is a kind of direct advanced Needleless seal transfusion technology rotating linking remaining needle, be closed state when being attached thereto without any connector, keep aseptic condition, the male end of joint can connect peripheral vein arbitrarily, central vein, remaining needle, three-way valves etc. need the port of calparine cap end socket, negative termination can connect and pin syringe, transfusion device, blood exchange transfusion set, complete transfusion, the treatment tasks such as blood transfusion and blood drawing, in infusion process, there will not be transfusion device and remaining needle to depart from, when transfusion device is pulled up, produce a malleation, automatically the liquid in connection tube is made to push ahead, blood backflow can be prevented in remaining needle, avoid the formation of thrombosis.
Along with the application of no-needle transfusion device is more and more general, also just occurred needleless joint of a great variety, they are made up of the Flexible Reset assembly of Rule male contact, female Luer pedestal and multiple silica gel or metal or plastic material substantially.Positive pressure connector is in the market plain edition, T-shaped and Y type positive pressure connector: plain edition positive pressure connector is generally coordinate threeway conbined usage, advantage for using flexibly, shortcoming be due to the use of, junction point easily produces leakage, and due to complex structure, Heavy Weight, life-time service is unfavorable to human body; T-shaped and Y type is the positive pressure connector after improvement, advantage is to solve weight issue, but the structure due to its inner flow passage adopts reinforcement to support the gap of check valve formation as runner, runner, when the night of transfusion is by runner, can form certain resistance not point-blank, affect flow velocity, and whole transfusion system is a micro-pressure system, the generation of resistance can destroy the original balance of whole micro-pressure system, makes troubles during use.
Summary of the invention
The technical problem to be solved in the present invention is to provide the resistance needleless Anti-reflux infusion positive pressure connector that integrally declines of a kind of monoblock type, No leakage, micro-resistance.
For solving the problems of the technologies described above, technical scheme of the present invention is: the one resistance Needleless barotropic joint that integrally declines comprises for Y type Needleless barotropic joint, mainly comprise Y shell body and malleation check valve, its innovative point is: described Y shell body is the tube-like envelope of inner wall smooth, is 20-45 ° is connected and in Y type by chemical feed pipe and positive pressure connector pipe;
Described positive pressure connector pipe, mainly comprises cathode port, anode port and pedestal, and anode port is provided with 6:100 female Luer, can be connected with delay pin, cathode port outer surface has double end right-handed thread made in Great Britain, and can be connected with infusion connector, base internal wall is equipped with malleation check valve;
Described malleation check valve mainly comprises piston, back-moving spring and piston seat, and described back-moving spring is supported in the cavity between piston and piston seat; Described piston is rounded, has the inclined-plane exposing positive pressure connector tube cathode port, and its front end realizes airtight be connected respectively by the first O-ring seal and the second O-ring seal with positive pressure connector tube cathode mouth and piston seat inner chamber with rear end; Described piston seat is tightly connected by the 3rd O-ring seal and positive pressure connector tube anode mouth, and be provided with the through hole be communicated with female Luer bottom it, piston seat outer wall and base internal wall are provided with guiding gutter, and this guiding gutter and through hole form flow-guiding channel;
Described chemical feed pipe inwall is tack bullet shaped, and the bottom that chemical feed pipe is arranged on pedestal is communicated with flow-guiding channel.
Further, the pedestal of described positive pressure connector pipe is set to oval tube-like envelope.
Further, the diameter of described circular piston and the minor diameter equal and opposite in direction of pedestal.
Further, described female Luer band flange.
Further, double end right-handed thread screw thread made in Great Britain in described female Luer band.
Further, the port of described chemical feed pipe connects end socket or heparin and emits.
Further, described chemical feed pipe is arranged on the oval arbitrary end face pointed by major diameter of pedestal.
The invention has the advantages that: one, adopt the mode of global formation to obtain Y type shell, the object reducing costs, reduce unnecessary structure reached, and effectively achieve product lightweight; Its two, adopt global formation mode, while decreasing the Hermetical connecting structure of high request between chemical feed pipe and positive pressure connector, achieving leak free function, providing good guarantee for enhancing product performance; Its three, adopt oval base, make the runner of ingenious expansion positive pressure connector in fixing space, the change of the micro-pressure system environments that avoiding detours during liquid flow causes; Its four, in order to be that runner is more unimpeded, on the position of design chemical feed pipe, have also been made the design of smooth route, further ensure the stability of minute-pressure system; Its five, adopt laced belt flange or female thread, during use, different crowds and working environment can be adapted to.
Accompanying drawing explanation
Fig. 1 is the first structural representation of a kind of resistance needleless Anti-reflux infusion positive pressure connector that integrally declines of the present invention.
Fig. 2 is the view of the A-A of Fig. 1.
Fig. 3 is the second structural representation of a kind of resistance needleless Anti-reflux infusion positive pressure connector that integrally declines of the present invention.
Fig. 4 is the third structural representation of a kind of resistance needleless Anti-reflux infusion positive pressure connector that integrally declines of the present invention.
Detailed description of the invention
Schematic diagram is as shown in Figure 1 known, one of the present invention integrally declines resistance needleless Anti-reflux infusion positive pressure connector, mainly comprise Y shell body and malleation check valve, Y shell body is the tube-like envelope of inner wall smooth, to be connected and in Y type by chemical feed pipe 1 and positive pressure connector pipe 2 in 20-45 °;
Positive pressure connector pipe 2, mainly comprise cathode port 3, anode port 4 and pedestal 5, anode port 4 is provided with 6:100 female Luer 6, can be connected with delay pin, shown in Fig. 3, female Luer 6 is with flange 16, shown in Fig. 4, female Luer 6 is with interior double end right-handed thread screw thread 17 made in Great Britain; Cathode port 3 outer surface has double end right-handed thread made in Great Britain, can be connected with infusion connector; Pedestal 5 inwall is equipped with malleation check valve;
Malleation check valve mainly comprises piston 7, back-moving spring 8 and piston seat 9, and described back-moving spring 9 is supported in the cavity between piston 7 and piston seat 8; Described piston 7 is rounded, has the inclined-plane 10 exposing positive pressure connector tube cathode port, and its front end realizes airtight be connected respectively by the first O-ring seal 11 and the second O-ring seal 12 with positive pressure connector tube cathode mouth 3 and piston seat 9 inner chamber with rear end; Piston seat 9 is tightly connected with positive pressure connector tube anode mouth 4 by the 3rd O-ring seal 13, and be provided with the through hole 14 be communicated with female Luer 6 bottom it, piston seat 9 outer wall and pedestal 5 inwall are provided with guiding gutter 15, and this guiding gutter 15 forms flow-guiding channel with through hole 14; Chemical feed pipe 1 inwall is tack bullet shaped, and the bottom that chemical feed pipe 1 is arranged on pedestal 5 is communicated with flow-guiding channel, and in the present embodiment, the port of chemical feed pipe can connect end socket 18 or heparin emits 19.
Shown in Fig. 2, the pedestal 5 of positive pressure connector pipe 2 is set to oval tube-like envelope, the diameter of circular piston seat 9 and the minor diameter equal and opposite in direction of pedestal 5, and chemical feed pipe is arranged on the oval arbitrary end face pointed by major diameter of pedestal.
Above-mentioned one integrally declines resistance needleless Anti-reflux infusion positive pressure connector, when infusing, by grug feeding jar dosing, when pulling down infusion apparatus joint, piston 7 moves up rapidly reset under back-moving spring 8 and compressed-air actuated promotion, get back to position as shown in Fig. 1, in the process, by piston 7, first and second O-ring seals 11, 12 and piston seat 9 form cavity reduce gradually, until original position, due to sealing ring 11, 12, the existence of 13 makes between the inner chamber of positive pressure connector pipe 2 and piston 1, all seal between piston seat 9 and piston 7, so the liquid that piston 7 inner chamber holds can only be flowed out by flow-guiding channel enter inlying catheter, namely the object producing malleation is reached, avoid and extract the problem that infusion apparatus joint makes blood backflow and obstruction conduit.
Claims (8)
1. the resistance needleless Anti-reflux infusion positive pressure connector that integrally declines, for Y type Needleless barotropic joint, mainly comprise Y shell body and malleation check valve, it is characterized in that: described Y shell body is the tube-like envelope of inner wall smooth, be 20-45 ° by chemical feed pipe and positive pressure connector pipe and be connected and in Y type;
Described positive pressure connector pipe, mainly comprises cathode port, anode port and pedestal, and anode port is provided with 6:100 female Luer, can be connected with delay pin, cathode port outer surface has double end right-handed thread made in Great Britain, and can be connected with infusion connector, base internal wall is equipped with malleation check valve;
Described malleation check valve mainly comprises piston, back-moving spring and piston seat, and described back-moving spring is supported in the cavity between piston and piston seat; Described piston is rounded, has the inclined-plane exposing positive pressure connector tube cathode port, and its front end realizes airtight be connected respectively by the first O-ring seal and the second O-ring seal with positive pressure connector tube cathode mouth and piston seat inner chamber with rear end; Described piston seat is tightly connected by the 3rd O-ring seal and positive pressure connector tube anode mouth, and be provided with the through hole be communicated with female Luer bottom it, piston seat outer wall and base internal wall are provided with guiding gutter, and this guiding gutter and through hole form flow-guiding channel;
Described chemical feed pipe inwall is tack bullet shaped, and the bottom that chemical feed pipe is arranged on pedestal is communicated with flow-guiding channel.
2. one according to claim 1 integrally declines resistance needleless Anti-reflux infusion positive pressure connector, it is characterized in that: the pedestal of described positive pressure connector pipe is set to oval tube-like envelope.
3. one according to claim 2 integrally declines resistance needleless Anti-reflux infusion positive pressure connector, it is characterized in that: the diameter of described circular piston and the minor diameter equal and opposite in direction of pedestal.
4. one according to claim 2 integrally declines resistance needleless Anti-reflux infusion positive pressure connector, it is characterized in that: the central shaft of described chemical feed pipe aligns with the end of the long diameter of oval base and arranges.
5. one according to claim 1 integrally declines resistance needleless Anti-reflux infusion positive pressure connector, it is characterized in that: described female Luer band flange.
6. one according to claim 1 integrally declines resistance needleless Anti-reflux infusion positive pressure connector, it is characterized in that: double end right-handed thread screw thread made in Great Britain in described female Luer band.
7. one according to claim 1 integrally declines resistance needleless Anti-reflux infusion positive pressure connector, it is characterized in that: the port of described chemical feed pipe connects end socket or heparin emits.
8. one according to claim 1 integrally declines resistance needleless Anti-reflux infusion positive pressure connector, it is characterized in that: described chemical feed pipe is arranged on the oval arbitrary end face pointed by major diameter of pedestal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510183030.5A CN104758997A (en) | 2015-04-17 | 2015-04-17 | Integrated micro-resistance needle-free anti-counterflow infusion positive pressure connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510183030.5A CN104758997A (en) | 2015-04-17 | 2015-04-17 | Integrated micro-resistance needle-free anti-counterflow infusion positive pressure connector |
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|---|---|
| CN104758997A true CN104758997A (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510183030.5A Pending CN104758997A (en) | 2015-04-17 | 2015-04-17 | Integrated micro-resistance needle-free anti-counterflow infusion positive pressure connector |
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| CN (1) | CN104758997A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105920730A (en) * | 2016-06-30 | 2016-09-07 | 锐嘉（宜兴）科技有限公司 | Needle-free medicine addition connector with screw threads |
| CN107096117A (en) * | 2017-04-24 | 2017-08-29 | 沙俊诚 | One kind is used to intervene the two-way radiography three-way device of operation |
| CN108815698A (en) * | 2018-07-06 | 2018-11-16 | 苏州鑫康道医疗科技有限公司 | Continuous positive pressure connector |
| CN109091752A (en) * | 2018-09-19 | 2018-12-28 | 华蓥市明月镇小学 | A kind of disposable infusion connector |
| CN109481840A (en) * | 2018-12-21 | 2019-03-19 | 锦州诺德医疗器械科技有限公司 | A kind of calparine cap |
| 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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| US20010004686A1 (en) * | 1999-12-16 | 2001-06-21 | Jean-Max Huet | Automatically-closing connector for connecting a liquid injection head to an injection outlet |
| CN1764798A (en) * | 2003-04-03 | 2006-04-26 | B.布朗医学公司 | Injection port valve |
| CN1768871A (en) * | 1996-12-16 | 2006-05-10 | Icu医学有限公司 | Positive flow valve |
| CN1879902A (en) * | 2006-02-22 | 2006-12-20 | 张亚平 | Needle-free closed transfusion adaptor |
| CN101195054A (en) * | 2007-11-21 | 2008-06-11 | 张亚平 | Non-needle positive pressure enclosed transfusion joint valve |
| CN101337105A (en) * | 2008-08-11 | 2009-01-07 | 张亚根 | I-form arteriovenous indwelling needle with positive pressure function |
| CN201880124U (en) * | 2010-09-02 | 2011-06-29 | 陈尊孔 | Double safety vein indwelling needle |
| CN203400369U (en) * | 2013-08-14 | 2014-01-22 | 郑州迪奥医学技术有限公司 | Positive pressure infusion connector without needle tape |
| CN204017143U (en) * | 2014-06-11 | 2014-12-17 | 新乡市驼人医疗器械有限公司 | Counterflow-preventing positive pressure connector |
| CN204745157U (en) * | 2015-04-17 | 2015-11-11 | 南通恒泰医疗器材有限公司 | An organic whole declines resistance needleless and prevents infusing against current malleation and connect |
-
2015
- 2015-04-17 CN CN201510183030.5A patent/CN104758997A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1768871A (en) * | 1996-12-16 | 2006-05-10 | Icu医学有限公司 | Positive flow valve |
| US20010004686A1 (en) * | 1999-12-16 | 2001-06-21 | Jean-Max Huet | Automatically-closing connector for connecting a liquid injection head to an injection outlet |
| CN1764798A (en) * | 2003-04-03 | 2006-04-26 | B.布朗医学公司 | Injection port valve |
| CN1879902A (en) * | 2006-02-22 | 2006-12-20 | 张亚平 | Needle-free closed transfusion adaptor |
| CN101195054A (en) * | 2007-11-21 | 2008-06-11 | 张亚平 | Non-needle positive pressure enclosed transfusion joint valve |
| CN101337105A (en) * | 2008-08-11 | 2009-01-07 | 张亚根 | I-form arteriovenous indwelling needle with positive pressure function |
| CN201880124U (en) * | 2010-09-02 | 2011-06-29 | 陈尊孔 | Double safety vein indwelling needle |
| CN203400369U (en) * | 2013-08-14 | 2014-01-22 | 郑州迪奥医学技术有限公司 | Positive pressure infusion connector without needle tape |
| CN204017143U (en) * | 2014-06-11 | 2014-12-17 | 新乡市驼人医疗器械有限公司 | Counterflow-preventing positive pressure connector |
| CN204745157U (en) * | 2015-04-17 | 2015-11-11 | 南通恒泰医疗器材有限公司 | An organic whole declines resistance needleless and prevents infusing against current malleation and connect |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105920730A (en) * | 2016-06-30 | 2016-09-07 | 锐嘉（宜兴）科技有限公司 | Needle-free medicine addition connector with screw threads |
| CN107096117A (en) * | 2017-04-24 | 2017-08-29 | 沙俊诚 | One kind is used to intervene the two-way radiography three-way device of operation |
| CN108815698A (en) * | 2018-07-06 | 2018-11-16 | 苏州鑫康道医疗科技有限公司 | Continuous positive pressure connector |
| CN109091752A (en) * | 2018-09-19 | 2018-12-28 | 华蓥市明月镇小学 | A kind of disposable infusion connector |
| CN109481840A (en) * | 2018-12-21 | 2019-03-19 | 锦州诺德医疗器械科技有限公司 | A kind of calparine cap |
| 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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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150708 |