CN202061163U - Micropore blood returning preventing infusion device - Google Patents
Micropore blood returning preventing infusion device Download PDFInfo
- Publication number
- CN202061163U CN202061163U CN2011201560515U CN201120156051U CN202061163U CN 202061163 U CN202061163 U CN 202061163U CN 2011201560515 U CN2011201560515 U CN 2011201560515U CN 201120156051 U CN201120156051 U CN 201120156051U CN 202061163 U CN202061163 U CN 202061163U
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- China
- Prior art keywords
- micropore
- bipass
- buoy
- blood return
- infusion device
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- Expired - Fee Related
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to a micropore blood returning preventing infusion device in the field of medical equipment, which comprises a bottle insertion needle, a droplet funnel, a conduit and an infusion needle, wherein a bipass is arranged in the droplet funnel, the lower end of the bipass is communicated with the lower conduit, the upper end of the bipass is opened, a drainage wire penetrates through the wall of the bipass, a buoy is arranged in the droplet funnel and is provided with a positioning needle fixed at the bottom of the buoy, the positioning needle penetrates through the center of a closed membrane, the closed membrane is provided with a blood returning preventing micropore, the wall of the droplet funnel is provided with an exhaust window which can be used for automatic exhaust, the closed membrane automatically closes the upper port of the bipass when liquid medicine runs off so as to realize automatic liquid stop, and residual liquid is sucked into the bipass and the lower conduit by the blood returning preventing micropore and the drainage wire to maintain hyperslow microscale infusion so as to achieve the effect of blood returning prevention.
Description
Technical field
This utility model 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 difficulty, gas enters 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's fear, and form thrombosis even produce malpractice.
Be sort this problem out, existing in recent years automatic vent, end the patent or the product of liquid transfusion device automatically.But these patents or product seldom have and possess automatic vent simultaneously and end liquid automatically, have not finding as yet of blood return prevention function.A lot of patents and product all call blood return prevention ending liquid automatically, take for transfusion device and end the conduit that the blood of human body behind the liquid just can not instead flow into transfusion device.Present end automatically the liquid 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 purpose of this utility model is to provide a kind of automatic vent, ends the micropore blood return preventing infusion device of liquid and blood return prevention automatically.
The purpose of this utility model is achieved in that 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 upper end open 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 described exhausting window stretches in the dropping funnel, and described 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 dropping funnel 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 that ends liquid automatically.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.
This utility model is in the dropping funnel of existing transfusion device bipass, buoy and exhausting window to be set, and just can reach automatic vent, the only effect of liquid and blood return prevention automatically effectively.
Description of drawings
Concrete structure of the present utility model is provided by following embodiment and accompanying drawing thereof.
Fig. 1 is the profile according to the micropore blood return preventing infusion device that the utility model proposes.
Fig. 2 is the Pedicellus et Pericarpium Trapae sketch map of buoy lid.
Specific implementation method
Describe details and working condition in detail below in conjunction with Fig. 1 and Fig. 2 according to the concrete device that the utility model proposes.
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 upper end open 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, and 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 utility model.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) and transfusion needle (12) through bipass and gets final product puncture vessel and infuse.If medicinal liquid has flowed, buoy descends, and closing membrane (7) also descends thereupon, until with sealing suitable for reading, reaches and ends liquid automatically.Debris in dropping funnel this moment (2) enters 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 energy 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.
Embodiment 2
The specific embodiment of a kind of micropore blood return preventing infusion device of the present utility model, 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.
Embodiment 3
The specific embodiment of a kind of micropore blood return preventing infusion device of this utility model, 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 only liquid 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, ending liquid automatically can not blood return prevention, but blood return prevention must possess again and ends liquid automatically.
Above embodiment only is used to the technical solution of the utility model is described but not limiting the scope of the 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 with downcomer (13), upper end open, a buoy (6) is arranged in the described dropping funnel; buoy has a positioning needle (11); positioning needle is passed and stretched in the bipass (10) from the center of closing membrane (7); 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), 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 |
|---|---|---|---|
| CN2011201560515U CN202061163U (en) | 2011-05-08 | 2011-05-08 | Micropore blood returning preventing infusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201560515U CN202061163U (en) | 2011-05-08 | 2011-05-08 | Micropore blood returning preventing infusion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202061163U true CN202061163U (en) | 2011-12-07 |
Family
ID=45055046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201560515U Expired - Fee Related CN202061163U (en) | 2011-05-08 | 2011-05-08 | Micropore blood returning preventing infusion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202061163U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014023122A1 (en) * | 2012-08-07 | 2014-02-13 | 上海金塔医用器材有限公司 | Filter with controllable anti-backflow time in medical infusion device, and medical infusion device |
| CN104906653A (en) * | 2015-06-19 | 2015-09-16 | 戎静华 | Anticoagulation liquid-stopping transfusion device with liquid-stopping sealant floating plug balloon catheter |
-
2011
- 2011-05-08 CN CN2011201560515U patent/CN202061163U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014023122A1 (en) * | 2012-08-07 | 2014-02-13 | 上海金塔医用器材有限公司 | Filter with controllable anti-backflow time in medical infusion device, and medical infusion device |
| CN104906653A (en) * | 2015-06-19 | 2015-09-16 | 戎静华 | Anticoagulation liquid-stopping transfusion device with liquid-stopping sealant floating plug balloon catheter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111207 Termination date: 20150508 |
|
| EXPY | Termination of patent right or utility model |