CN101780295A - Bubble-free transfusion system - Google Patents
Bubble-free transfusion system Download PDFInfo
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- CN101780295A CN101780295A CN201010107166A CN201010107166A CN101780295A CN 101780295 A CN101780295 A CN 101780295A CN 201010107166 A CN201010107166 A CN 201010107166A CN 201010107166 A CN201010107166 A CN 201010107166A CN 101780295 A CN101780295 A CN 101780295A
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- bubble
- dropper body
- dropping funnel
- dropper
- pin
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Abstract
The invention discloses a bubble-free transfusion system, which comprises a bottle stopper puncture outfit, an air filter, a drip hopper, a flow regulator, a disposable intravenous needle and the like and is characterized in that an anti-bubble liquid dropping device consists of a dropper body, a dropper body holder and a dropper body connecting conduit. In the normal transfusion process, the anti-bubble liquid dropping device makes the pressure in the drip hopper and the external air pressure reach a critical balance state, and simultaneously, height differential pressure is formed between a liquid inlet hole on the dropper body and the top end of a liquid inlet needle, so gas and liquid can not flow out simultaneously, which ensures that no bubble exists in the transfusion process. The invention has the following advantages: 1 the bubble removing performance is stabler; 2 the drip hopper does not need to be extruded in the use process; 3 the entire transfusion operation step is simple without any additional steps; 4 no liquid medicine is left in the drip hopper when transfusion is ended; and 5 the bubble-free transfusion system is very favorable for rapid transfusion in an emergency state and strives for time for rescuing serious patients.
Description
Technical field
The present invention relates to disposable use medical apparatus and instruments, especially relate to a kind of bubble-free infusion set.
Background technology
At present, the general infusion set that medical field is commonly used is formed by bottle plug puncture unit, air filter, last dropper, dropping funnel, flow regulator, transfusion catheter, liquid medicine filter and disposable use venoclysis needle.General infusion set the transfusion just begin, when medicinal liquid enters dropping funnel, because medicinal liquid is subjected to the double influence of gravity and pressure, very easily form the gas-liquid mixture of gas and medicinal liquid, this gas-liquid mixture can enter in the transfusion catheter of dropping funnel below bubble phenomenon when forming transfusion rapidly simultaneously.Meanwhile, because the micro-bubble in the transfusion catheter has surface tension, these micro-bubbles can be adsorbed on the inwall of transfusion catheter in the infusion process, and the bubble ratio that therefore eliminating produces is difficulty.These bubbles enter the intravital danger of patient in infusion process, cause the harm that causes patient's aeroembolism because of bubble.So medical personnel infuse after the bubble in the transfusion catheter must being discharged fully before infusing again.Usually the manual method of getting rid of gas is: after bottle plug puncture unit is inserted transfusion bottle stopper, squeeze dropping funnel with hands earlier, medicinal liquid is entered in the dropping funnel, simultaneously dropping funnel is hung upside down, after charging into a certain amount of medicinal liquid in the dropping funnel, rapidly dropping funnel is vertically placed, can prevent the generation of a large amount of bubbles; Another kind method is earlier actuator to cut out, and after charging into a certain amount of medicinal liquid in the dropping funnel, slowly opens actuator again, thereby reduces the generation of bubble.These manual methods are all more time-consuming, and its deflated stability is not high yet, are unfavorable for urgent transfusion and rescue critically ill patient.
Summary of the invention
The object of the present invention is to provide a kind of can stop in infusion process because of pressure and gravity enter fast bubble in the conduit, again can stop simultaneously micro-bubble the absorption of pipe inner wall, esy to use, safe and reliable, do not increase any operating procedure, novel bubble-free infusion set simple in structure.
The object of the present invention is achieved like this: the present invention includes bottle plug puncture unit, air filter, transfusion catheter, last dropper, dropping funnel, flow regulator, liquid medicine filter and disposable use venoclysis needle, feature is also to comprise anti-bubble dropper, incorporate anti-bubble dropper is by the dropper body of top, the dropper body connecting duct of intermediary dropper body holder and below is formed, dropper body holder is fixed on the dropping funnel mouth place of dropping funnel lower end, dropper body holder constitutes the dropping funnel chamber of sealing with dropping funnel, and the dropper body connecting duct that is in the dropping funnel outside is connected with the liquid feeding end of flow regulator; Being processed with two in the dropper body in being in the dropping funnel chamber is spaced from each other and the feed tube and the balance pipe of upper end closed, the lower end of feed tube is passed dropper body holder and is communicated with dropper body connecting duct, left side wall middle and lower part at the dropper body is processed with the inlet opening that communicates with feed tube, in feed tube, be placed with up and down equal openings and be shorter in length than the feed liquor pin of feed tube, the top of feed liquor pin is higher than inlet opening, and inlet opening, feed tube and feed liquor pin have constituted liquid in-out height pressure difference system jointly; Left side wall middle and upper part at the dropper body is processed with the steam vent that communicates with balance pipe, in balance pipe, be placed with up and down equal openings and be shorter in length than the air pressure balance pin of balance pipe, be processed with air inlet vertical with balance pipe and that communicate on the right side wall of dropper body holder, air inlet, balance pipe, air pressure balance pin and steam vent have constituted the inner and extraneous pneumatics balance sysmte of dropping funnel jointly; At the air inlet pipe internal fixation air filter membrane is arranged.
Be processed with the feed tube annular protrusion that is used to hold feed liquor pin bottom in the lower end of up big and down small feed tube, be processed with the balance pipe annular protrusion that is used to hold air pressure balance pin bottom in the lower end of up big and down small balance pipe; Or the lower end of up big and down small feed tube is tightly filled in and be fixed in the lower end of feed liquor pin, the lower end that up big and down small balance pipe is tightly filled in and be fixed in the lower end of air pressure balance pin.
The top of feed liquor pin is lower than the top of air pressure balance pin.
Right-hand member in air inlet is processed with the annular boss that prevents that the air filtration film from deviating from.
On the right side wall of dropper body holder, be processed with can overturn and can jam-pack air inlet, be used to detect the equilibrated inlet valve of dropping funnel intracavity air pressure.
The present invention has set up on the basis of traditional infusion device by the dropper body, the incorporate anti-bubble dropper that dropper body holder and dropper body connecting duct are formed, and in the dropper body, be separately installed with feed liquor pin and air pressure balance pin in feed tube spaced apart from each other and the balance pipe, on the sidewall of dropper body, be processed with inlet opening and steam vent respectively, on the sidewall of dropper body holder, be processed with air inlet, the top of feed liquor pin is higher than inlet opening, thereby, steam vent, feed tube and feed liquor pin have constituted liquid in-out height pressure difference system, air inlet jointly, balance pipe, air pressure balance pin and steam vent have constituted the inner and extraneous pneumatics balance sysmte of dropping funnel jointly.Like this in the normal infusion process, medicinal liquid in the medicine bottle flows to by bottle plug puncture unit and transfusion catheter and goes up dropper, because the influence of gravity and pressure, medicinal liquid can enter rapidly in the dropping funnel, extraneous pneumatics balance sysmte communicates the inside and outside air of dropping funnel, be that the dropping funnel intracavity is identical with external air pressure, medicinal liquid is slowly risen and can not flow out rapidly that the air of dropping funnel intracavity will be discharged by the steam vent place.In dropping funnel, be provided with liquid in-out height pressure difference system, when the medicinal liquid height of dropping funnel intracavity constantly rises, medicinal liquid can be entered by inlet opening, because inner air and outer air pressure balance, medicinal liquid will slowly rise along the slit between feed tube and the feed liquor pin, air in uphill process in the liquid in-out height pressure difference system also will be discharged from inlet opening thereupon, when the medicinal liquid rising arrives the top end of feed liquor pin, medicinal liquid will flow out in the flow regulator downwards along the feed liquor pin, because this moment, medicinal liquid covered the top of feed liquor pin, the air pressure of dropping funnel intracavity also is in borderline balance state with the external world, air can't enter the flow regulator from the top of feed liquor pin, can't flow out simultaneously with liquid thereby reached gas, bubble-free purpose in the whole infusion process.Therefore, the present invention has following advantage: 1, under compared with similar products, the performance of getting rid of bubble is more stable; 2, need not to push dropping funnel in the use; 3, whole transfusion operation step is simple, need not to increase any operating procedure; No medicinal liquid residual phenomena in dropping funnel when 4, transfusion finishes; 5, very help transfusion fast under the state of emergency, race against time for rescuing critically ill patient.
Description of drawings
Fig. 1 is a cross-sectional schematic of the present invention;
Fig. 2 is the structural representation of anti-bubble generator;
Fig. 3 is the right view of Fig. 2;
Fig. 4 is the cross-sectional schematic of anti-bubble generator among the embodiment 1;
Fig. 5 is that the A-A of Fig. 4 is to cross-sectional schematic;
Fig. 6 is the cross-sectional schematic of anti-bubble generator among the embodiment 2.
The specific embodiment
Below in conjunction with embodiment and contrast accompanying drawing the present invention is described in further detail.
Embodiment 1:
The present invention includes bottle plug puncture unit 1, air filter 2, transfusion catheter 3, last dropper 4, dropping funnel 5, anti-bubble dropper 7, flow regulator 9, liquid medicine filter 10 and disposable use venoclysis needle 11 are formed, incorporate anti-bubble dropper 7 is by the dropper body 12 of top, the dropper body connecting duct 15 of intermediary dropper body holder 14 and below is formed, dropper body holder 14 is fixed on dropping funnel mouth 8 places of dropping funnel 5 lower ends, dropper body holder 14 constitutes the dropping funnel chamber of sealing 6 with dropping funnel 5, and the dropper body connecting duct 15 that is in dropping funnel 5 outsides is connected with the liquid feeding end of flow regulator 9; Being processed with two in the dropper body 12 in being in dropping funnel chamber 6 is spaced from each other and the vertical feed tube 18 and the balance pipe 21 of upper end closed, the lower end of feed tube 18 is passed dropper body holder 14 and is communicated with dropper body connecting duct 15, be processed with the inlet opening 13 that communicates with feed tube 18 in the left side wall middle and lower part of dropper body 12, in feed tube 18, be placed with up and down equal openings and be shorter in length than the feed liquor pin 19 of feed tube 18, the top of feed liquor pin 19 is higher than inlet opening 13, and inlet opening 13, feed tube 18 and feed liquor pin 19 have constituted liquid in-out height pressure difference system jointly; Be processed with the steam vent 16 that communicates with balance pipe 21 in the left side wall middle and upper part of dropper body 12, in balance pipe 21, be placed with up and down equal openings and be shorter in length than the air pressure balance pin 20 of balance pipe 21, on the right side wall of dropper body holder 14, be processed with air inlet 24 vertical with balance pipe 21 and that communicate, air inlet 24, balance pipe 21, air pressure balance pin 20 and steam vent 16 constituted jointly dropping funnel inner with extraneous pneumatics balance sysmte; At air inlet 24 internal fixation air filter membrane 22 is arranged.
Be processed with the feed tube annular protrusion 25 that is used to hold feed liquor pin 19 bottoms in the lower end of up big and down small feed tube 18, be processed with the balance pipe annular protrusion 26 that is used to hold air pressure balance pin 20 bottoms in the lower end of up big and down small balance pipe 21.
The top of feed liquor pin 19 is lower than the top of air pressure balance pin 20.
Right-hand member in air inlet 24 is processed with the annular boss 23 that prevents that air filtration film 22 from deviating from.
On the right side wall of dropper body holder 14, be processed with can overturn and can jam-pack air inlet 24, be used to detect the equilibrated inlet valve 17 of dropping funnel chamber 6 inner air pressures.
Embodiment 2:
The structure of embodiment 2 is substantially the same manner as Example 1, and difference is:
Claims (6)
1. bubble-free infusion set, comprise bottle plug puncture unit (1), air filter (2), transfusion catheter (3), last dropper (4), dropping funnel (5), flow regulator (9), liquid medicine filter (10) and disposable use venoclysis needle (11), it is characterized in that: also comprise anti-bubble dropper (7), incorporate anti-bubble dropper (7) is by the dropper body (12) of top, the dropper body connecting duct (15) of intermediary dropper body holder (14) and below is formed, dropper body holder (14) is fixed on the dropping funnel mouth (8) of dropping funnel (5) lower end and locates, dropper body holder (14) constitutes the dropping funnel chamber of sealing (6) with dropping funnel (5), and the dropper body connecting duct (15) that is in dropping funnel (5) outside is connected with the liquid feeding end of flow regulator (9); Being processed with two in the dropper body (12) in being in dropping funnel chamber (6) is spaced from each other and the vertical feed tube (18) and the balance pipe (21) of upper end closed, the lower end of feed tube (18) is passed dropper body holder (14) and is communicated with dropper body connecting duct (15), be processed with the inlet opening (13) that communicates with feed tube (18) in the left side wall middle and lower part of dropper body (12), in feed tube (18), be placed with up and down equal openings and be shorter in length than the feed liquor pin (19) of feed tube (18), the top of feed liquor pin (19) is higher than inlet opening (13), inlet opening (13), feed tube (18) and feed liquor pin (19) have constituted liquid in-out height pressure difference system jointly; Be processed with the steam vent (16) that communicates with balance pipe (21) in the left side wall middle and upper part of dropper body (12), in balance pipe (21), be placed with up and down equal openings and be shorter in length than the air pressure balance pin (20) of balance pipe (21), be processed with air inlet (24) vertical with balance pipe (21) and that communicate on the right side wall of dropper body holder (14), air inlet (24), balance pipe (21), air pressure balance pin (20) and steam vent (16) have constituted the inner and extraneous pneumatics balance sysmte of dropping funnel jointly; At air inlet (24) internal fixation air filter membrane (22) is arranged.
2. bubble-free infusion set as claimed in claim 1 is characterized in that: the top of feed liquor pin (19) is lower than the top of air pressure balance pin (20).
3. bubble-free infusion set as claimed in claim 2, it is characterized in that: be processed with the feed tube annular protrusion (25) that is used to hold feed liquor pin (19) bottom in the lower end of up big and down small feed tube (18), be processed with the balance pipe annular protrusion (26) that is used to hold air pressure balance pin (20) bottom in the lower end of up big and down small balance pipe (21).
4. bubble-free infusion set as claimed in claim 3 is characterized in that: feed liquor pin (19) is integrated to be injection-moulded in the up big and down small feed tube (18), and air pressure balance pin (20) is integrated to be injection-moulded in the up big and down small balance pipe (21).
5. bubble-free infusion set as claimed in claim 4 is characterized in that: the right-hand member in air inlet (24) is processed with the annular boss (23) that prevents that air filtration film (22) from deviating from.
6. bubble-free infusion set as claimed in claim 5 is characterized in that: on the right side wall of dropper body holder (14), be processed with can overturn and can jam-pack air inlet (24), be used to detect the equilibrated inlet valve of dropping funnel chamber (6) inner air pressure (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101071665A CN101780295B (en) | 2010-02-08 | 2010-02-08 | Bubble-free transfusion system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101071665A CN101780295B (en) | 2010-02-08 | 2010-02-08 | Bubble-free transfusion system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101780295A true CN101780295A (en) | 2010-07-21 |
| CN101780295B CN101780295B (en) | 2011-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101071665A Active CN101780295B (en) | 2010-02-08 | 2010-02-08 | Bubble-free transfusion system |
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| CN (1) | CN101780295B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102319469A (en) * | 2011-09-09 | 2012-01-18 | 浙江康泰医疗器械有限公司 | Self-exhaust transfusion device |
| CN102580179A (en) * | 2012-03-20 | 2012-07-18 | 山东威高集团医用高分子制品股份有限公司 | Novel exhaust-free infusion set |
| CN102648990A (en) * | 2011-02-23 | 2012-08-29 | 河南曙光健士医疗器械集团有限公司 | Disposable light-resistant infusion apparatus |
| CN103566428A (en) * | 2013-09-30 | 2014-02-12 | 上海宝舜医疗器械有限公司 | Disposable infusion apparatus for preventing dripping emptiness by air separating and automatically stopping liquid |
| CN112146926A (en) * | 2020-08-13 | 2020-12-29 | 广东电网有限责任公司 | Transformer oil sampling tool and sampling test method thereof |
-
2010
- 2010-02-08 CN CN2010101071665A patent/CN101780295B/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102648990A (en) * | 2011-02-23 | 2012-08-29 | 河南曙光健士医疗器械集团有限公司 | Disposable light-resistant infusion apparatus |
| CN102319469A (en) * | 2011-09-09 | 2012-01-18 | 浙江康泰医疗器械有限公司 | Self-exhaust transfusion device |
| CN102580179A (en) * | 2012-03-20 | 2012-07-18 | 山东威高集团医用高分子制品股份有限公司 | Novel exhaust-free infusion set |
| CN103566428A (en) * | 2013-09-30 | 2014-02-12 | 上海宝舜医疗器械有限公司 | Disposable infusion apparatus for preventing dripping emptiness by air separating and automatically stopping liquid |
| CN112146926A (en) * | 2020-08-13 | 2020-12-29 | 广东电网有限责任公司 | Transformer oil sampling tool and sampling test method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101780295B (en) | 2011-08-17 |
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