CN102772835A - Microporous anti-backflow transfusion apparatus - Google Patents
Microporous anti-backflow transfusion apparatus Download PDFInfo
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- CN102772835A CN102772835A CN2011101268339A CN201110126833A CN102772835A CN 102772835 A CN102772835 A CN 102772835A CN 2011101268339 A CN2011101268339 A CN 2011101268339A CN 201110126833 A CN201110126833 A CN 201110126833A CN 102772835 A CN102772835 A CN 102772835A
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- dropping funnel
- micropore
- bipass
- blood return
- buoy
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Abstract
The invention relates to a microporous anti-backflow transfusion apparatus, belonging to the field of medical appliances. The microporous anti-backflow transfusion apparatus comprises a bottle insertion needle, a dropping funnel, a guide tube and a transfusion needle, wherein a bipass is arranged in the dropping funnel; the lower end of the bipass is communicated with a lower guide tube, and the upper end is open; the tube wall penetrates through a guide line; a floater is arranged in the dropping funnel, and provided with a locating pin fixed on the bottom of the floater; the locating pin penetrates through the center of a closing membrane; the closing membrane is provided with an anti-backflow micropore; and the wall of the dropping funnel is provided with an exhaust window capable of implement automatic exhausting. After the liquor runs out, the closing membrane automatically closes the upper opening of the bipass, thereby achieving the goal of automatic liquor stop; and the anti-backflow micropore and the guide line suck the residual liquor into the bipass and the lower guide tube to maintain very slow and trace transfusion, thereby performing the anti-backflow function.
Description
Technical field
The present invention relates to the category of medical apparatus and instruments, is a kind of micropore blood return preventing infusion device.
Technical background
Existing transfusion device aerofluxus is difficult, and gas gets into downcomer when failing in time to change medicine bottle in infuse kind, and blood problem such as be back in the transfusion device is failed effective solution.The aerofluxus difficulty has not only increased operator's workload, and is one of unsafe factor in the infusion process.In order to prevent that medicinal liquid from having flowed, air admission downcomer, the bottle of changing dressings when remaining certain debris in the medicine bottle of being everlasting, the liquid waste that causes.Do not carry on a shoulder pole very difficult the eliminating if can not in time change medicinal liquid bottle air admission downcomer, and produce the blood back phenomenon, patient is panic, and forms thrombosis even generation malpractice.
Be sort this problem out, the patent or the product of existing in recent years automatic vent, automatic solution stopping transfusion device.But these patents or product seldom have and possess automatic vent and solution stopping automatically simultaneously, have not finding as yet of blood return prevention function.A lot of patents and product all call blood return prevention to automatic solution stopping, take for the conduit that the blood of human body after the transfusion device solution stopping just can not instead flow into transfusion device.Present automatic solution stopping transfusion device all be in every way when flow of liquid is finished downcomer close automatically.Disappear because downcomer cuts out the action of gravity of liquid in the transfusion device of back, the intravital venous pressure of people's this moment has surpassed the hydraulic pressure in the conduit, and the blood reflux inflow catheter produces the blood back effect.
Summary of the invention
The object of the present invention is to provide the micropore blood return preventing infusion device of a kind of automatic vent, automatic solution stopping and blood return prevention.
The objective of the invention is to realize like this: a kind of micropore blood return preventing infusion device comprises needle for inserting bottle, dropping funnel, conduit and transfusion needle, wherein, a bipass is arranged in the described dropping funnel; The inner chamber of pipe is less than 2mm; The passing through micropores mistake of a drainage thread from tube wall arranged, and described bipass lower end and downcomer are connected, and open upper end has a movable closing membrane sealing; A buoy is arranged in the dropping funnel, and described buoy bottom has a fixed positioning needle to pass and stretch in the bipass from the center of closing membrane.Closing membrane has the blood return prevention micropore at the positioning needle place of passing, and the aperture is less than 0.3mm.The buoy lid is rhombus, has a plurality of Pedicellus et Pericarpium Trapaes to prevent buoy stickup dropping funnel wall.The dropping funnel wall has an exhausting window, and the exhaustor of said exhausting window stretches in the dropping funnel, and said exhaustor and buoy cover the minimum 5mm of distance when bipass is closed.
The action of gravity of medicinal liquid is discharged gas unnecessary in the drench bucket during work through exhausting window; Until liquid level sealing exhaustor, because of the not water flowing of ventilating of the filter membrane of exhausting window, the minimum buoy 5mm that is higher than of liquid level this moment; Make the buoy come-up; Closing membrane goes up with buoy is floating that bipass is suitable for reading to be opened, and medicinal liquid flows into downcomer and transfusion needle through bipass, and can infuse this moment.When medicinal liquid has flowed, the liquid level of dropping funnel descends, and buoy also descends thereupon, until closing membrane with bipass sealing suitable for reading.The Pedicellus et Pericarpium Trapae of buoy does not tilt buoy in dropping funnel, it is suitable for reading that positioning needle makes closing membrane accurately seal bipass, reaches the effect of automatic solution stopping.This moment, the bottom of dropping funnel remained certain debris, and the drainage thread of bipass and the micropore of closing membrane can import debris in the bipass with extremely slow speed and flow into downcomer, made transfusion continue to keep denier and extremely slow speed to reach the blood return prevention effect.Drainage thread and micropore can both exist simultaneously, also can only use wherein a kind of structure and method.
The present invention is provided with bipass, buoy and exhausting window in the dropping funnel of existing transfusion device, just can reach the effect of automatic vent, automatic solution stopping and blood return prevention effectively.
Description of drawings
Concrete structure of the present invention is provided by following embodiment and accompanying drawing thereof.
Fig. 1 is the profile of the micropore blood return preventing infusion device of proposition according to the present invention.
Fig. 2 is the Pedicellus et Pericarpium Trapae sketch map of buoy lid.
The practical implementation method
Specify details and working condition below in conjunction with Fig. 1 and Fig. 2 according to the concrete device of the present invention's proposition.
The micropore blood return preventing infusion device comprises a main body dropping funnel (2), and a bipass (10) is arranged in the dropping funnel, and its lower end communicates open upper end with downcomer (13).Tube wall passes a drainage thread (9); There is its bottom of a buoy (6) to fix a positioning needle (11) in the dropping funnel; Positioning needle is passed from the center of a closing membrane (7); At this positioning needle place of passing a blood return prevention micropore (8) is arranged, an exhausting window (3) is arranged in the dropping funnel wall, the exhaustor of exhausting window (4) penetrates in the dropping funnel above buoy.
Embodiment 1
The specific embodiment of a kind of micropore blood return preventing infusion device of the present invention.As depicted in figs. 1 and 2, medicinal liquid flowed in the dropping funnel (2) after needle for inserting bottle (1) inserted medicinal liquid bottle or medicinal fluid bag, and gas unnecessary in the dropping funnel is discharged through exhaustor (4) and exhausting window (3).Aerofluxus stops when liquid level sealing exhaustor (4), and closing membrane (7) also raises with the rising of buoy (6), makes suitable for reading the opening of bipass (10), and medicinal liquid flows into downcomer (13) through bipass and gets final product puncture vessel with transfusion needle (12) and infuse.If medicinal liquid has flowed, buoy descends, and closing membrane (7) also descends thereupon, until with sealing suitable for reading, reaches automatic solution stopping.Debris in dropping funnel this moment (2) gets into downcomer (13) through the medicinal liquid that the blood return prevention micropore flows into and the drainage thread suction is micro-through bipass (10) and keeps the trace transfusion, and extremely slow because of speed, general 1 milliliter debris can be kept more than one hour.Because transfusion is still continuing, so the ability blood return prevention avoids forming thrombosis, medicinal liquid flows into funnel again behind the replacing medicinal liquid bottle, and the buoy come-up continues to keep normal infusion again.
The specific embodiment of a kind of micropore blood return preventing infusion device of the present invention, its primary structure is identical with embodiment 1, and difference is that blood return prevention has only the blood return prevention micropore.Debris in medicinal liquid has flowed the dropping funnel suitable for reading (2) of closing membrane (7) sealing bipass (10) is through blood return prevention micropore inflow bipass (10) and downcomer (13), and it is simpler that this mode does not connect streamline technology.
The specific embodiment of a kind of micropore blood return preventing infusion device of the present invention, its primary structure is identical with embodiment 1, and difference is to have only drainage thread to keep the trace transfusion.To have flowed closing membrane (7) sealing bipass (10) suitable for reading when medicinal liquid; Because the no blood return prevention micropore of closing membrane (7) has only drainage thread (9) drain of bipass (10), process ratio 1 is simple; Drainage thread attracts flow liquid to flow into downcomer (13) through bipass (10), and the imbibition effect of drainage thread (9) is more stable.
The complete closed downcomer can reach the solution stopping effect, but since the venous pressure effect of human body certainly lead to blood back and form thrombosis, so must keep trace continue transfusion could blood return prevention, solution stopping can not blood return prevention automatically, but blood return prevention must possess automatic solution stopping again.
Above embodiment only is used to technical scheme of the present invention is described but not to the restriction of protection domain of the present invention.
Claims (5)
1. micropore blood return preventing infusion device of forming by needle for inserting bottle, dropping funnel, downcomer; It is characterized in that a bipass (10) is arranged in the dropping funnel (2), its lower end communicates open upper end with downcomer (13); A buoy (6) is arranged in the described dropping funnel; buoy has a positioning needle (11), positioning needle is passed and is stretched in the bipass (10) from the center of closing membrane (7), and closing membrane (7) has blood return prevention micropore (8) at the position that positioning needle (11) is passed; the dropping funnel wall has an exhausting window (3), and its exhaustor (4) stretches into the top of the inherent buoy of funnel.
2. micropore blood return preventing infusion device according to claim 1, the internal diameter that it is characterized in that bipass (10) are less than 2mm, and tube wall has a drainage thread (9) to pass.
3. micropore blood return preventing infusion device according to claim 1 is characterized in that the aperture of blood return prevention micropore of closing membrane (7) is less than 0.3mm.
4. micropore blood return preventing infusion device according to claim 1 is characterized in that the exhaustor (4) of exhausting window (3) stretches in the dropping funnel, and the distance of exhaustor and buoy is greater than 5mm.
5. micropore blood return preventing infusion device according to claim 1, what it is characterized in that buoy (6) is stamped many Pedicellus et Pericarpium Trapaes (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101268339A CN102772835A (en) | 2011-05-08 | 2011-05-08 | Microporous anti-backflow transfusion apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101268339A CN102772835A (en) | 2011-05-08 | 2011-05-08 | Microporous anti-backflow transfusion apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102772835A true CN102772835A (en) | 2012-11-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101268339A Pending CN102772835A (en) | 2011-05-08 | 2011-05-08 | Microporous anti-backflow transfusion apparatus |
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| CN (1) | CN102772835A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103330966A (en) * | 2013-06-14 | 2013-10-02 | 何前国 | Infusion apparatus capable of controlling blood reflow time through utilizing slow release of micropore passage |
| CN103330970A (en) * | 2013-07-25 | 2013-10-02 | 谢世庚 | Automatically-sealed thrombus-prevented venous indwelling needle and use method thereof |
| CN103394149A (en) * | 2013-05-16 | 2013-11-20 | 何前国 | Infusion apparatus capable of preventing blood from flowing back through sustained release of micropore passageway |
| CN103977473A (en) * | 2014-05-16 | 2014-08-13 | 戎静华 | Automatic stopping infusion device provided with exhausting fluid storing tube and micro-flow-rate infusion tube |
| CN104043162A (en) * | 2014-07-17 | 2014-09-17 | 谢世庚 | Thrombus preventing venous indwelling needle and thrombus preventing method thereof |
| CN104189969A (en) * | 2014-05-24 | 2014-12-10 | 戎静华 | Automatic liquid-stopping infusion apparatus with novel exhaust liquid-storage tube |
| CN104338199A (en) * | 2014-11-19 | 2015-02-11 | 何前国 | Blood return preventing infusion device |
| WO2015154351A1 (en) * | 2014-04-11 | 2015-10-15 | 上海金塔医用器材有限公司 | Anti-blood-backflow time-controllable filter for medical infusion set, and medical infusion set |
| CN106581806A (en) * | 2015-10-20 | 2017-04-26 | 湖南省绿洲惠康发展有限公司 | Disposable self-sealed automatic liquid-stopping transfusion device |
-
2011
- 2011-05-08 CN CN2011101268339A patent/CN102772835A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103394149B (en) * | 2013-05-16 | 2015-02-11 | 何前国 | Infusion apparatus capable of preventing blood from flowing back through sustained release of micropore passageway and method thereof |
| CN103394149A (en) * | 2013-05-16 | 2013-11-20 | 何前国 | Infusion apparatus capable of preventing blood from flowing back through sustained release of micropore passageway |
| CN103330966B (en) * | 2013-06-14 | 2014-09-03 | 何前国 | Infusion apparatus capable of controlling blood reflow time through utilizing slow release of micropore passage |
| CN103330966A (en) * | 2013-06-14 | 2013-10-02 | 何前国 | Infusion apparatus capable of controlling blood reflow time through utilizing slow release of micropore passage |
| CN103330970A (en) * | 2013-07-25 | 2013-10-02 | 谢世庚 | Automatically-sealed thrombus-prevented venous indwelling needle and use method thereof |
| CN103330970B (en) * | 2013-07-25 | 2015-01-07 | 谢世庚 | Automatically-sealed thrombus-prevented venous indwelling needle and use method thereof |
| WO2015154351A1 (en) * | 2014-04-11 | 2015-10-15 | 上海金塔医用器材有限公司 | Anti-blood-backflow time-controllable filter for medical infusion set, and medical infusion set |
| CN103977473A (en) * | 2014-05-16 | 2014-08-13 | 戎静华 | Automatic stopping infusion device provided with exhausting fluid storing tube and micro-flow-rate infusion tube |
| CN104189969A (en) * | 2014-05-24 | 2014-12-10 | 戎静华 | Automatic liquid-stopping infusion apparatus with novel exhaust liquid-storage tube |
| CN104043162A (en) * | 2014-07-17 | 2014-09-17 | 谢世庚 | Thrombus preventing venous indwelling needle and thrombus preventing method thereof |
| CN104338199A (en) * | 2014-11-19 | 2015-02-11 | 何前国 | Blood return preventing infusion device |
| CN106581806A (en) * | 2015-10-20 | 2017-04-26 | 湖南省绿洲惠康发展有限公司 | Disposable self-sealed automatic liquid-stopping transfusion device |
| CN106581806B (en) * | 2015-10-20 | 2023-02-28 | 湖南省绿洲惠康发展有限公司 | Disposable self-closed automatic liquid-stopping infusion apparatus |
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Application publication date: 20121114 |