CN104353156A - Automatic liquid following infusion head for soft bag infusion - Google Patents
Automatic liquid following infusion head for soft bag infusion Download PDFInfo
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- CN104353156A CN104353156A CN201410730843.7A CN201410730843A CN104353156A CN 104353156 A CN104353156 A CN 104353156A CN 201410730843 A CN201410730843 A CN 201410730843A CN 104353156 A CN104353156 A CN 104353156A
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- liquid
- passage
- floating
- valve
- outlet channel
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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
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16804—Flow controllers
- A61M5/16827—Flow controllers controlling delivery of multiple fluids, e.g. sequencing, mixing or via separate flow-paths
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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 relates to an automatic liquid following infusion head for soft bag infusion. A liquid inlet channel, a liquid outlet channel and a floating valve are arranged in an infusion head body of the automatic liquid following infusion head, wherein the floating valve is arranged at the bottom end of the infusion head body and consists of a floating valve chamber, a floating ball and a valve; the floating ball is arranged in the floating valve chamber and floats up and down; the valve is connected with the floating ball; one side of the floating valve chamber is communicated with the liquid inlet pipe; a channel is arranged on the other side of the floating valve chamber and is communicated with the liquid outlet channel; an opening and a channel for a liquid feeding pipe are respectively arranged on two sides of the floating valve chamber; the valve is arranged between the liquid inlet channel and the liquid outlet channel; the liquid inlet channel and the liquid outlet channel are blocked by the valve through upward floating of the floating ball; the liquid inlet channel and the liquid outlet channel are communicated by the valve through sinking of the floating ball; the liquid outlet channel and the channel are respectively communicated with the liquid outlet pipe. According to the automatic liquid following infusion head disclosed by the invention, the infusion path of a soft bag container is controlled by closing or opening the floating valve, and automatic change of bottles is realized. The automatic liquid following infusion head has the advantages of simple structure, low cost and easiness for popularization in a wide range; the labor intensity of medical workers is reduced.
Description
Technical field
The present invention relates to medical infusion from moving bag technique, referring to a kind of liquid transfusion head that automatically continues being specifically designed to soft bag infusion utilizing physical principle automatically to control the successively input of transfusion group liquid.
Background technology
The relevant patent of invention (patent No.: ZL201210408974.4) utilizing physical principle to control transfusion automatic decanting of my original application, be by control many bottles of liquid in order air inlet realize automatic decanting.Be subject to multiple restriction in actual use, as:
Must could use in the container of duroplasts bottle or vial subpackage, can not use in the container of soft bag subpackage.This is because flexible container does not need air inlet just can infuse, if the program is used for the continuous transfusion of soft bottle group, namely when second bottle or later liquid bottles are flexible container, export before second or later liquid carrying may be caused and with first bottle of liquid mixing, cause malpractice.So the transfusion group of program application can only be at most first bottle is transfusion bag, as long as no matter because first bottle of air inlet or not air inlet can be infused, just start to perform automatic decanting function from second bottle, and can only be the object that could realize continuous transfusion for hard bottle.And medical infusion is from now on a kind of trend with soft bag subpackage.The transfusion head simultaneously waited for must entangle with sealing shroud, prevents leakage or gas from entering in tube for transfusion.
Summary of the invention
The object of the invention is for the shortcoming existed in background technology and problem in addition improvement and bring new ideas, provide a kind of closedown by floating valve to stop current liquid bag natural infusion under gravity, realizing infusion waits for; Last bag infused, air enters floating valve indoor makes floating valve decline, the connection infusion of open current liquid bag after valve open, realizes the liquid transfusion head that automatically continues for soft bag infusion of automatic decanting function.
The present invention constructs a kind of liquid transfusion head that automatically continues for soft bag infusion, the polypropylene cap that transfusion head inserts transfusion bag carries out liquid input, comprise the transfusion head body that at least two series connection use, in transfusion head body, set into liquid passage, liquid outlet channel and float trap, wherein:
Float trap is established in transfusion head body bottom, described float trap is made up of float valve box and be arranged on floating valve indoor one upper and lower floating ball float and the valve that is connected with ball float, float side, valve box connection liquid-in pipe, opposite side arranges passage and communicates with liquid outlet channel, feed tube opening and passage are separately positioned on both sides, floating valve box, and feed tube, float valve box, passage, liquid outlet channel and drain pipe form front bag liquid and flow through passage; Described entering between liquid passage and liquid outlet channel arranges valve, and valve blocks into liquid passage and liquid outlet channel by ball float floating, by ball float sink through enter liquid passage and liquid outlet channel, enter liquid passage, liquid outlet channel and drain pipe to form current bag liquid and flow through passage, and current bag liquid flows through passage is opened or closed by Valve controlling; Described liquid outlet channel and passage are all communicated with drain pipe.
Advantage of the present invention and beneficial effect:
The present invention is mainly used in the continuous transfusion of soft bag infusion group.Because transfusion flexible bag does not need air inlet, will infusion automatically as long as connect with tube for transfusion, so how the container group that this device mainly solves soft bag subpackage accomplishes that infusion is waited for, releasings, wait in good time etc. operates and realize automatic decanting problem.
The present invention, by the closedown of floating valve or the open obstruction or unobstructed controlling the gravity infusion path of soft bag, realizes automatic decanting when using soft bag; In whole automatic decanting infusion process, effectively prevent liquid return, achieve pulsed and continue liquid.The present invention adopts physical principle, and without the need to arranging external control component, also do not have complicated using method, structure is simple, and cost is low, and what effectively alleviate nurse changes bag operation, alleviates the labor intensity of medical personnel, is easy to promote on a large scale.
Accompanying drawing explanation
Fig. 1 is apparatus of the present invention schematic diagram.
Fig. 2 is apparatus of the present invention valve-closed state schematic diagram.
Fig. 3 is apparatus of the present invention valve open state schematic diagram.
Detailed description of the invention
For the ease of understanding the present invention, below with reference to relevant drawings, the present invention is described more fully.First-selected embodiment of the present invention is given in accompanying drawing.But the present invention can realize in many different forms, is not limited to embodiment described herein.On the contrary, the object of these embodiments is provided to be make to disclosure of the present invention more thoroughly comprehensively.
It should be noted that, when element is considered to " setting " on another element, it can be directly installed on another element or may there is centering elements simultaneously.
Unless otherwise defined, all technology used herein are identical with the implication that those skilled in the art of the present invention understand usually with scientific terminology.The term used in description, just in order to describe concrete enforcement object, is not intended to be restriction the present invention.
The fluid passage of top end opening is had to be communicated with valve and drain pipe in transfusion head main body of the present invention, valve is floated by ball float and blocks top in transfusion head main body and have fluid passage and the liquid outlet channel of opening, has fluid passage and the liquid outlet channel of opening by the ball float top in through transfusion head main body that sinks.Wherein, the caliber sectional area of passage is less than the sectional area that feed tube is opened on floating valve box bottom end opening.The aperture position outline of feed tube is higher than passage, and can guarantee valve indoor liquid when reducing the gas entered in valve box be unlikely to admission passage, namely air will admission passage time valve open, current bottle transfusion starts, liquid level in valve box is stoped to continue to decline, even current bottle partially liq reflux enters in valve box to make liquid level increase, when backflowing through feed tube, the valve that floats rises, close current bottle transfusion valve, wait for that liquid level declines naturally, air soon admission passage time continuation flow process above.The transfusion of current soft bag liquid is real is pulsed transfusion, prevents from backflowing.
As shown in Figures 1 to 3, the present invention includes and be used alone or at least two transfusion head bodies 8 used of connecting, in transfusion head body 8, set into liquid passage 7, liquid outlet channel 10 and float trap, wherein:
Float trap is established in transfusion head body 8 bottom, described float trap is made up of with the 2 one upper and lower floating ball floats 1 and connected valve 3 being arranged on floating valve indoor valve box 2 of floating, float side, valve box 2 connection liquid-in pipe 5, and opposite side interface channel 4 also communicates with liquid outlet channel 10; Described entering between liquid passage 7 and liquid outlet channel 10 arranges valve 3, and valve 3 blocks into liquid passage 7 and liquid outlet channel 10 by ball float 1 floating, by ball float 1 sink through enter liquid passage 7 and liquid outlet channel 10, described liquid outlet channel 10 and interface channel 4 all connect logical drain pipe 6.
When described liquid-in pipe 5 enters liquid, ball float 1 rises and by-pass valve control 3 blocks into liquid passage 7 and liquid outlet channel 10 under liquid buoyancy effect, medicinal liquid enters floating valve box 2 again through liquid-in pipe 5 and is flowing into drain pipe 6 by passage 4, only be formed as last bag medicinal liquid to export and only provide and flow through passage, simultaneously current medicinal fluid bag do not carry out infusion.
Described liquid-in pipe 5 air inlet, ball float 1 sinks under gravity, valve 3 open and through enter liquid passage 7 and liquid outlet channel 10, medicinal liquid enters liquid outlet channel 10 flow into drain pipe 6 again through entering liquid passage 7, and current fluid bag medicinal liquid exports, and realizes automatic decanting.
Described liquid-in pipe 5 air inlet i.e. floating valve box 2 enters air, valve 3 open through enter liquid passage 7 start current bag with liquid outlet channel 10 and infuse, in liquid outlet channel 10, partially liq extremely floats in valve box 2 through passage 4 reflux, before liquid level rising arrival feed tube 5 opening backflows, ball float 1 rises valve-off 3, the liquid in valve box 2 that floats flows out liquid level naturally decline through passage 4, drain pipe 6, and air again enters floating valve box 2 and continues liquid and realize pulsed continuous transfusion.The highest liquid level bottom described floating valve box 2 to feed tube 5 access port is just lifted valve 3 and is disconnected completely into liquid passage 7 and liquid outlet channel 10, treats that liquid level decline late gate 3 is opened again, realizes pulsed transfusion.
Described feed tube 5 opening and passage 4 are separately positioned on both sides, floating valve box 2.Wherein, the caliber sectional area of passage 4 is less than the sectional area that feed tube 5 is opened on floating valve box 2, is beneficial to floating valve box 2 topping up valve-off 3.The aperture position outline of feed tube 5 is higher than passage 4, and the gas entered in floating valve box 2 is unlikely to admission passage 4 when can guarantee that in floating valve box 2, liquid reduces, namely air will admission passage 4 time valve 3 open, current soft bag liquid transfusion starts, liquid level in valve box 2 is stoped to continue to decline, even current soft bag liquid part reflux enters in floating valve box 2 to make liquid level increase, when soon backflowing through feed tube 5, ball float 1 rises, close the valve 3 of current soft bag liquid, wait for that liquid level declines naturally, air soon admission passage 4 time continue flow process above.The transfusion of current bottle is real is pulsed transfusion, prevents from backflowing.
When liquid-in pipe 5 imports liquid, drive the current bag of valve 3 deblocking infusion channel under gravity by the floating of ball float 1 in floating valve box 2 (when entering to be greater than), make it temporarily not infuse.At this moment, the liquid that last bag comes flows to drain pipe 6 through passage 4.After last bag liquid conveying, air enters floating valve box 2, and ball float is declined, and valve 3 is open, and current bag liquid flows to drain pipe 6 through open valve 3 under gravity and continues transfusion.As occur liquid return to float the situation of valve box 2 time, ball float can be blocked infusion channel and causes infusing and temporarily stop along with the liquid level by-pass valve control 3 that rises, time is very of short duration, along with liquid ceaselessly flows out (because liquid be below continuously infusion) from drain pipe, once liquid level decline float valve can decline again open infusion channel, its real work is exactly this pulsed.
Embodiment of the present invention is only the description carried out the preferred embodiment of the present invention; not design of the present invention and scope are limited; under the prerequisite not departing from design philosophy of the present invention; the various modification that in this area, engineers and technicians make technical scheme of the present invention and improvement; protection scope of the present invention all should be fallen into; the technology contents of request protection of the present invention, all records in detail in the claims.
Claims (7)
1. the liquid transfusion head that automatically continues for soft bag infusion, the polypropylene cap that transfusion head inserts transfusion bag carries out liquid input, comprise the transfusion head body (8) that at least two series connection use, it is characterized in that setting into liquid passage (7), liquid outlet channel (10) and float trap in transfusion head body (8), wherein:
Float trap is established in transfusion head body (8) bottom, described float trap is made up of with the upper and lower floating ball float (1) be arranged in floating valve box (2) and the valve (3) be connected with ball float (1) valve box of floating (2), floating valve box (2) side is communicated with liquid-in pipe (5), opposite side arranges passage (4) and communicates with liquid outlet channel (10), and feed tube (5) opening and passage (4) are separately positioned on floating valve box (2) both sides; Described entering between liquid passage (7) and liquid outlet channel (10) arranges valve (3), and valve (3) blocks into liquid passage (7) and liquid outlet channel (10) by ball float (1) floating, by ball float (1) sink through enter liquid passage (7) and liquid outlet channel (10), described liquid outlet channel (10) and passage (4) are all communicated with drain pipe (6).
2. a kind of liquid transfusion head that automatically continues for soft bag infusion according to claim 1, it is characterized in that described liquid-in pipe (5) enters liquid, ball float (1) rises under liquid buoyancy effect and by-pass valve control (3) blocks into liquid passage (7) and liquid outlet channel (10), medicinal liquid enters floating valve box (2) through liquid-in pipe (5) and flows into drain pipe (6) by passage (4) again, forms the transfusion state that current bag infusion channel blocks, last bag medicinal liquid output channel is unimpeded.
3. a kind of liquid transfusion head that automatically continues for soft bag infusion according to claim 1, it is characterized in that described liquid-in pipe (5) air inlet, ball float (1) sinks under gravity, valve (3) open and through enter liquid passage (7) and liquid outlet channel (10), medicinal liquid enters liquid outlet channel (10) flow into drain pipe (6) again through entering liquid passage (7), realizes automatically switching into current bag medicinal liquid output state.
4. a kind of liquid transfusion head that automatically continues for soft bag infusion according to claim 1, it is characterized in that described liquid-in pipe (5) air inlet i.e. floating valve box (2) enters air, valve (3) open through enter liquid passage (7) and liquid outlet channel (10) start current bag and infuse, liquid outlet channel (10) interior partially liq extremely floats in valve box (2) through passage (4) reflux, before liquid level rising arrival feed tube (5) opening backflows, ball float (1) rising valve-off (3), float valve box (2) interior liquid through passage (4), drain pipe (6) flows out liquid level and naturally declines, air again enters the continuous liquid in floating valve box (2) and realizes pulsed continuous transfusion.
5. a kind of liquid transfusion head that automatically continues for soft bag infusion according to claim 4, the highest liquid level that it is characterized in that bottom described floating valve box (2) to feed tube (5) access port is just lifted valve (3) and is disconnected into liquid passage (7) and liquid outlet channel (10) completely, treat that liquid level decline late gate (3) is opened again, realize pulsed transfusion.
6. a kind of liquid transfusion head that automatically continues for soft bag infusion according to claim 1, is characterized in that the caliber sectional area of described passage (4) is less than the sectional area of the opening of feed tube (5) in floating valve box (2).
7. a kind of liquid transfusion head that automatically continues for soft bag infusion according to claim 1, is characterized in that the aperture position of described feed tube (5) in floating valve box (2) is higher than passage (4) aperture position in floating valve box (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410730843.7A CN104353156B (en) | 2014-12-05 | 2014-12-05 | Automatic liquid following infusion head for soft bag infusion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410730843.7A CN104353156B (en) | 2014-12-05 | 2014-12-05 | Automatic liquid following infusion head for soft bag infusion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104353156A true CN104353156A (en) | 2015-02-18 |
| CN104353156B CN104353156B (en) | 2017-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410730843.7A Expired - Fee Related CN104353156B (en) | 2014-12-05 | 2014-12-05 | Automatic liquid following infusion head for soft bag infusion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104353156B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104689411A (en) * | 2015-03-31 | 2015-06-10 | 刘玮 | Novel universal medical infusion head with automatic infusion bottle changing function |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5445630A (en) * | 1993-07-28 | 1995-08-29 | Richmond; Frank M. | Spike with luer fitting |
| WO1996035465A1 (en) * | 1995-05-10 | 1996-11-14 | Ohmeda Gmbh & Co. Kg | Infusion device |
| CN2431885Y (en) * | 2000-02-26 | 2001-05-30 | 付燕青 | Large transfusion connected device |
| CN102872500A (en) * | 2012-10-24 | 2013-01-16 | 刘玮 | Two-channel transfusion head of automatically controlling liquid and gas to be transfused by time phases |
| CN103990199A (en) * | 2014-06-06 | 2014-08-20 | 谷天行 | Multifunctional automatic bottle changing type infusion apparatus |
| CN104117109A (en) * | 2014-06-06 | 2014-10-29 | 谷天行 | Automatic bottle replacing infusion device based on buoyancy principle |
| CN204521824U (en) * | 2014-12-05 | 2015-08-05 | 刘玮 | A kind of liquid transfusion head that automatically continues for soft bag infusion |
-
2014
- 2014-12-05 CN CN201410730843.7A patent/CN104353156B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5445630A (en) * | 1993-07-28 | 1995-08-29 | Richmond; Frank M. | Spike with luer fitting |
| WO1996035465A1 (en) * | 1995-05-10 | 1996-11-14 | Ohmeda Gmbh & Co. Kg | Infusion device |
| CN2431885Y (en) * | 2000-02-26 | 2001-05-30 | 付燕青 | Large transfusion connected device |
| CN102872500A (en) * | 2012-10-24 | 2013-01-16 | 刘玮 | Two-channel transfusion head of automatically controlling liquid and gas to be transfused by time phases |
| CN103990199A (en) * | 2014-06-06 | 2014-08-20 | 谷天行 | Multifunctional automatic bottle changing type infusion apparatus |
| CN104117109A (en) * | 2014-06-06 | 2014-10-29 | 谷天行 | Automatic bottle replacing infusion device based on buoyancy principle |
| CN204521824U (en) * | 2014-12-05 | 2015-08-05 | 刘玮 | A kind of liquid transfusion head that automatically continues for soft bag infusion |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104689411A (en) * | 2015-03-31 | 2015-06-10 | 刘玮 | Novel universal medical infusion head with automatic infusion bottle changing function |
| CN104689411B (en) * | 2015-03-31 | 2017-05-31 | 刘玮 | A kind of universal medical infusion is automatic after liquid transfusion head |
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| Publication number | Publication date |
|---|---|
| CN104353156B (en) | 2017-02-22 |
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Granted publication date: 20170222 Termination date: 20211205 |
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| CF01 | Termination of patent right due to non-payment of annual fee |