CN104288861A - Two-channel gradient one-way single-flow-direction time-delay inverse resistance device - Google Patents
Two-channel gradient one-way single-flow-direction time-delay inverse resistance device Download PDFInfo
- Publication number
- CN104288861A CN104288861A CN201410556993.0A CN201410556993A CN104288861A CN 104288861 A CN104288861 A CN 104288861A CN 201410556993 A CN201410556993 A CN 201410556993A CN 104288861 A CN104288861 A CN 104288861A
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- CN
- China
- Prior art keywords
- bypass channel
- channel
- shutoff valve
- unidirectional
- pipeline
- 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
-
- 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
- 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
- A61M5/36—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 with means for eliminating or preventing injection or infusion of air into body
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/60—General characteristics of the apparatus with identification means
- A61M2205/6009—General characteristics of the apparatus with identification means for matching patient with his treatment, e.g. to improve transfusion security
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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)
- Emergency Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
A two-channel gradient one-way single-flow-direction time-delay inverse resistance device comprises a front one-way channel switch, front one-way channel pipelines, a bypass channel closing valve, bypass channel pipelines, an upstream main pipeline and a downstream main pipeline. The front one-way channel pipelines are connected to the front and back of the front one-way channel switch, the bypass channel pipelines are connected to the front and back of the bypass channel closing valve, and both the front one-way channel pipelines and the bypass channel pipes are jointly connected with the upstream main pipeline and the downstream main pipeline in a parallel mode. By the arrangement, the objectives that the position of a needle tip can be conveniently determined by display of blood backflow of an infusion apparatus in initial intravenous puncture and blood is prevented from back flowing to form thrombus blocking the pipeline of the needle tip by enabling fluid to be 'only-in-no-out' in the middle and later periods of infusion are realized.
Description
Technical field
The present invention relates to a kind of two-way gradual change single channel single current to time delay reverse-blocking device, particularly relate to the transformation and control technology that flow in the liquid input process in a kind of medical field, flow to period different, solve different problems, reach the application target of most critical in each period.
Technical background
Up to now, in the design of transfusion device, the overwhelming majority is bypass flow pipe, minority adds positive one-way valve structures, realize flowing to downstream only and can not refluxing upwards, in the use of reality, respectively there is inconvenience, if the bypass circulation of existing product, then cannot prevent the reflux of liquid and the followability reflux of blood, can not anti-Hemostatic Oral Liquid solidifying and blockage problem in needle point and pipeline, if just install a positive check valve simply additional, although the reflux of liquid can have been prevented, but but need the reflux of liquid together with blood at the initial stage that transfusion prepares, need blood backflow to enter display in tube for transfusion and confirm the position of needle point.So the requirement of reality is exactly to propose the scheme that solves above-mentioned contradiction, be convenient to make the best of both worlds.
Ideally require that liquid is bypass flowing in the use preparatory stage of transfusion device, namely aerofluxus can be completed, again can when venipuncture liquid return display blood enter pipeline be convenient to confirm tip position, but period after in transfusion, then need liquid " only import but no export ", reflux must not enter in pipeline, otherwise cause thrombosis to block pin hole.
Summary of the invention
In order to solve the problem existing for above-mentioned prior art, the invention provides a kind of two-way gradual change single channel single current to time delay reverse-blocking device, mainly comprise: just unidirectional channel switching, just unidirectional passage tube, bypass channel shutoff valve, bypass channel pipeline, upstream main pipe rail and downstream main pipe rail, the front and back of just unidirectional channel switching connect just unidirectional passage tube, the front and back of bypass channel shutoff valve connect bypass channel pipeline, just unidirectional passage tube is connected upstream main pipe rail and downstream main pipe rail with bypass channel pipeline jointly with parallel form, valve body is installed in the inside of bypass channel shutoff valve or in bypass channel pipeline outside, switch is installed, described bypass channel shutoff valve comprises bypass channel shutoff valve and half-duplex channel shutoff valve two kinds of patterns anyway, positive check valve body to downstream open is installed in just unidirectional channel switching.Liquid flows through just unidirectional passage tube, just unidirectional channel switching and bypass channel pipeline, bypass channel shutoff valve from upstream main pipe rail bifurcated, then is aggregated into downstream main pipe rail.The valve body of installing in bypass channel shutoff valve with the liquid comes into contact entered in bypass channel shutoff valve after automatically produces morphological dilation and change and finally bypass channel shutoff valve is closed in complete shutoff.The bypass channel shutoff valve that bypass channel pipeline is installed is starting closing function until the overall process finally completing closedown is an autonomous progressive action of closing bypass channel pipeline gradually.Upstream and downstream main pipe rail is within liquid enters 0 to 120 minute of early stage, in the valve body of installing in bypass channel pipeline after liquid effects closes bypass channel, the positive check valve body of installing in just unidirectional passage tube starts to play conclusive just unidirectional mobilization again, realizes the positive one-way flow of the downstream of upstream and downstream main pipe rail.The closing motion of bypass channel shutoff valve be not limited to valve body run into liquid after auto Deformation expansion plugging pattern, be also included on bypass channel pipeline and install manually or the switching mode of machine automatization." just unidirectional " definition of just unidirectional passage tube refers to a liquid flow further downstream, anyway " anyway unidirectional " definition of half-duplex channel refers to a liquid flow upstream, " bypass " definition of bypass channel refers to that liquid upstream or to downstream can flow.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described, in accompanying drawing:
Fig. 1 be two-way gradual change single channel single current proposed by the invention to time delay reverse-blocking device principle schematic.
Fig. 2 be two-way gradual change single channel single current proposed by the invention to time delay reverse-blocking device another kind implement schematic diagram.
Detailed description of the invention
As shown in Figure 1, for two-way gradual change single channel single current proposed by the invention to time delay reverse-blocking device principle schematic, mainly comprise: just unidirectional channel switching 1, just unidirectional passage tube 4, bypass channel shutoff valve 2, bypass channel pipeline 3, upstream main pipe rail 6 and downstream main pipe rail 5, the front and back of just unidirectional channel switching 1 connect just unidirectional passage tube 4, the front and back of bypass channel shutoff valve 2 connect bypass channel pipeline 3, just unidirectional passage tube 4 is connected upstream main pipe rail 6 and downstream main pipe rail 5 with bypass channel pipeline 3 jointly with parallel form, valve body is installed in the inside of bypass channel shutoff valve 2 or in bypass channel pipeline outside, switch 7 is installed, described bypass channel shutoff valve 2 comprises bypass channel shutoff valve and half-duplex channel shutoff valve two kinds of patterns anyway, positive check valve body to downstream open is installed in just unidirectional channel switching 1.Liquid flows through just unidirectional passage tube 4, just unidirectional channel switching 1 and bypass channel pipeline 3, bypass channel shutoff valve 2 from upstream main pipe rail 6 bifurcated, then is aggregated into downstream main pipe rail 5.The valve body of installing in bypass channel shutoff valve 2 with the liquid comes into contact entered in bypass channel shutoff valve after automatically produces morphological dilation and change and finally bypass channel shutoff valve 2 is closed in complete shutoff.The bypass channel shutoff valve 2 that bypass channel pipeline 3 is installed is starting closing function until the overall process finally completing closedown is an autonomous progressive action of closing bypass channel pipeline 3 gradually.Upstream and downstream main pipe rail is within liquid enters 0 to 120 minute of early stage, in the valve body of installing in bypass channel pipeline 3 after liquid effects closes bypass channel pipeline 3, the positive check valve body of installing in just unidirectional passage tube 4 starts to play conclusive just unidirectional mobilization again, realizes the positive one-way flow of the downstream of upstream and downstream main pipe rail.The closing motion of bypass channel shutoff valve 2 is not limited to the " shut " mode" that valve body runs into the auto Deformation expansion plugging after liquid, is also included on bypass channel pipeline 3 and installs manually or the switching mode of machine automatization." just unidirectional " definition of above-mentioned just unidirectional passage tube 4 refers to a liquid flow further downstream, " anyway unidirectional " definition of above-mentioned half-duplex channel anyway refers to a liquid flow upstream, and " bypass " definition of above-mentioned bypass channel refers to that liquid upstream or to downstream can flow.
As shown in Figure 2, be two-way gradual change single channel single current proposed by the invention to time delay reverse-blocking device another kind implement schematic diagram.Mainly comprise: just unidirectional channel switching 15, just unidirectional passage tube 10, bypass channel shutoff valve 16, bypass channel pipeline 9, upstream main pipe rail 11 and downstream main pipe rail 12, the upstream of just unidirectional channel switching 15 connects just unidirectional passage tube 10, the upstream of bypass channel shutoff valve 16 connects bypass channel pipeline 9, just unidirectional passage tube 10 is connected upstream main pipe rail 11 and downstream main pipe rail 12 with bypass channel pipeline 9 jointly with parallel form, valve body 7 is installed in bypass channel shutoff valve 16, in just unidirectional channel switching 15, positive check valve body 8 is installed.Liquid flows through just unidirectional passage tube 10 and bypass channel pipeline 9 downwards from upstream main pipe rail 11 simultaneously.The valve body 7 of installing in bypass channel shutoff valve 16 with the liquid comes into contact entered in bypass channel shutoff valve 16 after, produce the form change of physical property, the change of this form by tight shutoff bypass channel shutoff valve 16, thus closes bypass channel pipeline 9.The bypass channel shutoff valve 16 that bypass channel pipeline 9 is installed, starting closing function until the overall process finally completing closedown is an autonomous progressive action of closing bypass channel pipeline 9 gradually, is not subject to extraneous factor interference and blocks.Upstream and downstream main pipe rail can circulate within liquid enters 0 to 120 minute of early stage in bypass channel pipeline 9, when the valve body 7 of installing in bypass channel pipeline 9 is closed after bypass channel pipeline 9 through liquid effects, the positive check valve body 8 of installing in just unidirectional passage tube 10 just starts to play conclusive single effect really, realizes the positive one-way flow of the downstream of upstream and downstream main pipe rail.
The invention solves the initial stage backflow in transfusion and the contradictory problems of later stage anti-return, the blood backflow required for the blood back achieving the initial stage judges and the dual purpose preventing blood backflow blocking needle point in later stage.
Claims (6)
1. a two-way gradual change single channel single current to time delay reverse-blocking device, mainly comprise: just unidirectional channel switching, just unidirectional passage tube, bypass channel shutoff valve, bypass channel pipeline, upstream main pipe rail and downstream main pipe rail, the front and back of just unidirectional channel switching connect just unidirectional passage tube, the front and back of bypass channel shutoff valve connect bypass channel pipeline, just unidirectional passage tube is connected upstream main pipe rail and downstream main pipe rail with bypass channel pipeline jointly with parallel form, valve body is installed in the inside of bypass channel shutoff valve or in bypass channel pipeline outside, switch is installed, described bypass channel shutoff valve comprises duplex channel shutoff valve and anti-half-duplex channel shutoff valve two kinds of patterns, positive check valve body to downstream open is installed in just unidirectional channel switching.
2. a kind of two-way gradual change single channel single current as claimed in claim 1 to time delay reverse-blocking device, it is characterized in that, liquid flows through just unidirectional passage tube, just unidirectional channel switching and bypass channel pipeline, bypass channel shutoff valve from upstream main pipe rail bifurcated, then is aggregated into downstream main pipe rail.
3. a kind of two-way gradual change single channel single current as claimed in claim 1 to time delay reverse-blocking device, it is characterized in that, the valve body of installing in bypass channel shutoff valve with the liquid comes into contact entered in bypass channel shutoff valve after automatically produces morphological dilation and change and finally bypass channel shutoff valve is closed in complete shutoff.
4. a kind of two-way gradual change single channel single current as claimed in claim 1 to time delay reverse-blocking device, it is characterized in that, the bypass channel shutoff valve that bypass channel pipeline is installed is starting closing function until the overall process finally completing closedown is an autonomous progressive action of closing bypass channel pipeline gradually.
5. a kind of two-way gradual change single channel single current as claimed in claim 1 to time delay reverse-blocking device, it is characterized in that, upstream and downstream main pipe rail is within liquid enters 0 to 120 minute of early stage, in the valve body of installing in bypass channel pipeline after liquid effects closes bypass channel, the positive check valve body of installing in just unidirectional passage tube starts to play conclusive just unidirectional mobilization again, realizes the positive one-way flow of the downstream of upstream and downstream main pipe rail.
6. a kind of two-way gradual change single channel single current as claimed in claim 1 to time delay reverse-blocking device, it is characterized in that, the closing motion of bypass channel shutoff valve be not limited to valve body run into liquid after auto Deformation expansion plugging pattern, be also included on bypass channel pipeline and install manually or the switching mode of machine automatization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410556993.0A CN104288861A (en) | 2014-10-20 | 2014-10-20 | Two-channel gradient one-way single-flow-direction time-delay inverse resistance device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410556993.0A CN104288861A (en) | 2014-10-20 | 2014-10-20 | Two-channel gradient one-way single-flow-direction time-delay inverse resistance device |
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| CN104288861A true CN104288861A (en) | 2015-01-21 |
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| CN201410556993.0A Pending CN104288861A (en) | 2014-10-20 | 2014-10-20 | Two-channel gradient one-way single-flow-direction time-delay inverse resistance device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4758224A (en) * | 1985-03-25 | 1988-07-19 | Siposs George G | Suction control valve for left ventricle venting |
| CN2654131Y (en) * | 2003-03-03 | 2004-11-10 | 陈振业 | Disposable residual liquid proof pressurized blood/liquid transfusion apparatus |
| CN1708323A (en) * | 2002-10-29 | 2005-12-14 | 费梭根爱尔兰有限公司 | Device and method for controlled expression of gases from medical fluids delivery systems |
| CN101516419A (en) * | 2006-09-18 | 2009-08-26 | 爱尔康公司 | Automatic stop cock valve |
| CN102935256A (en) * | 2012-12-05 | 2013-02-20 | 山东威高集团医用高分子制品股份有限公司 | One-way valve for infusion |
| CN104399158A (en) * | 2014-11-14 | 2015-03-11 | 贾宇东 | Sensitive blood return blocking-preventing needle system structure with air removing safety function |
-
2014
- 2014-10-20 CN CN201410556993.0A patent/CN104288861A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4758224A (en) * | 1985-03-25 | 1988-07-19 | Siposs George G | Suction control valve for left ventricle venting |
| CN1708323A (en) * | 2002-10-29 | 2005-12-14 | 费梭根爱尔兰有限公司 | Device and method for controlled expression of gases from medical fluids delivery systems |
| CN2654131Y (en) * | 2003-03-03 | 2004-11-10 | 陈振业 | Disposable residual liquid proof pressurized blood/liquid transfusion apparatus |
| CN101516419A (en) * | 2006-09-18 | 2009-08-26 | 爱尔康公司 | Automatic stop cock valve |
| CN102935256A (en) * | 2012-12-05 | 2013-02-20 | 山东威高集团医用高分子制品股份有限公司 | One-way valve for infusion |
| CN104399158A (en) * | 2014-11-14 | 2015-03-11 | 贾宇东 | Sensitive blood return blocking-preventing needle system structure with air removing safety function |
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Effective date of registration: 20180123 Address after: Room 322, room 3, No. 538, Yongfeng Tuen No. 538, Beijing, Beijing Applicant after: Beijing Forerunner Technical Developing Co., Ltd. Address before: Room 1805, room 22, District 4, Siro garden, Beijing, Fengtai District, Beijing Applicant before: Jia Yudong |
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150121 |