CN103721311B - A kind of new disposable automatic cut-off intravenous transfusion device threeway negative pressure conduction device - Google Patents
A kind of new disposable automatic cut-off intravenous transfusion device threeway negative pressure conduction device Download PDFInfo
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- CN103721311B CN103721311B CN201210389809.9A CN201210389809A CN103721311B CN 103721311 B CN103721311 B CN 103721311B CN 201210389809 A CN201210389809 A CN 201210389809A CN 103721311 B CN103721311 B CN 103721311B
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- threeway
- negative pressure
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- transfusion
- transverse pipe
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Abstract
The invention provides a kind of disposable automatic cut-off intravenous transfusion device threeway negative pressure conduction device, it is arranged between the Murphy's dropper of transfusion device and lower tube for transfusion, have threeway longitudinal pipe and threeway transverse pipe opposing spaced apart in infusion process, the medicinal liquid in tube for transfusion is avoided to contact with air to produce and pollute, relatively be communicated with again simultaneously, make inner medicinal liquid pressure be converted into the function of air pressure; Its threeway transverse pipe can connect outer welding system, and intravenous transfusion device internal negative pressure is utilized further; Structure of the present invention is simple, reasonable in design, and manufacturability is strong, and Assembling Production efficiency is high, low cost of manufacture, and working effect is reliable and stable.
Description
Technical field
The threeway negative pressure conduction device, particularly one that the present invention relates to a kind of new type auto cut-off intravenous transfusion device do not pollute transfusion device inner liquid medicine, accurately can conduct the threeway negative pressure conduction device of transfusion device overpressure change at the end of transfusion.
Background technology
The disposable intravenous infusion set used in current venous transfusion nursing, domestic production producer is numerous, and its product structure is similar, does not all possess threeway negative pressure conduction device and function thereof; In the decades that disposable intravenous infusion set invention uses, the patent that relevant transfusion device improves about has more than thousands of item, and major part is all improve around the function of the aspects such as cut-off, blood return prevention, alarm, Anti-bubble, anti-needle roller; Time these are enough to illustrate that disposable intravenous infusion set has arrived needs improvement really, its power item has also highlighted problem existing for disposable intravenous infusion set and defect thereof, so mainly contain two large classes about transfusion device improvement project: a class utilizes transfusion device self power automatic cut-off blood return prevention, anti-needle roller (complication after puncture) Anti-bubble etc.; Another kind of is use electronic monitoring technology external force auxiliary cut-off alarm; Utilizing in transfusion device self power automatic cut-off blood return prevention, its main technical schemes increases automatic cut-off device in Murphy's dropper, as latex ball sealer, float needle, flap valve, valve, conical plug etc., its object is exactly that these devices can decline thereupon when liquid level decline is totally lost by medicinal liquid, self-blocking sealing liquid-transport pipe-line, stop liquid medicine flow, keep transfusion overpressure, prevent tube for transfusion inner liquid medicine reflux, blood back phenomenon occurs; Or at tube for transfusion bottom and end, the check valve of various structure is installed, make medicinal liquid can only one-way flow in tube for transfusion, avoid reflux phenomenon, thus avoid blood back; In use electronic monitoring technology external force auxiliary cut-off alarm, mainly concentrate on and use various monitoring technology, medicinal liquid in infusion bottle and transfusion device is monitored: as gravimetric method, volumetric method, magnetic method, photosensitive method etc., capture the information that medicinal liquid is totally lost in time, recycling electromagnetic technique clamping tube for transfusion realizes automatic cut-off, and sends warning signal.
Just about utilizing the patent Xiang Eryan of novel transfusion device aspect of the automatic cut-off of transfusion device self power, blood return prevention Anti-bubble, although its object is clear and definite, but it is all more single to there is function, lack systematicness, and actualizing technology scheme is not mature enough perfect, manufacturability is poor, is unfavorable for the number of drawbacks such as the application of electronic technology, causes this kind of technological invention slowly to can not get promotion and application, with regard to another kind of use electric detective technology external force auxiliary cut-off alarm, it is by existing disposable intravenous infusion set, install electronics additional, gravity, the method of the monitoring equipments such as magnetic force, realize automatic cut-off and the alarm monitoring function of venous transfusion, this kind of invention advanced technology, project plan comparison is perfect, both the automatic cut-off blood return prevention Anti-bubble function of venous transfusion had been achieved, also achieve alarm monitoring function simultaneously, but it has evaded the improvement to transfusion device, the deficiency existing for disposable intravenous infusion set self is made to can not get solving, transfusion device could not be improved and develop, have left electronic technology, just do not possess automatic cut-off blood return prevention Anti-bubble function, moreover the realization of its function relies on completely is external force, and not by the power of transfusion device self, do not meet energy-conserving and environment-protective requirement, though therefore this kind of technology, through wideling popularize, is not up to the present still used widely.
In sum, inventor thinks that single transfusion device improves or the method for single dependence electronic technology all can not solve problem existing in venous transfusion comprehensively, meets growing transfusion nursing requirement; Only have and both are combined, defect and deficiency existing for transfusion device self are improved and perfect, make it both possess automatic cut-off Anti-bubble blood return prevention function, be convenient to again the application of electronic technology, utilize it to end the negative pressure produced on this basis, the modern management realizing venous transfusion in conjunction with electronic technology is undoubtedly best selection; The bridge that this two classes combine with technique gets up by threeway negative pressure conduction device just and tie, therefore research and develop and provide new more simple and practical threeway negative pressure conduction technique to be very necessary.
Summary of the invention
The object of the present invention is to provide a kind of threeway negative pressure conduction device, particularly one of new type auto cut-off transfusion device not to pollute transfusion device inner liquid medicine, accurately can conduct the threeway negative pressure conduction device of transfusion device overpressure change after transfusion terminates.In order to achieve the above object, technical scheme of the present invention is achieved in that described threeway negative pressure conduction device 1, and be arranged between Murphy's dropper 2 and lower tube for transfusion 3, by threeway longitudinal pipe 1-1, threeway transverse pipe 1-2, negative pressure pouch 1-3 is assembled; The Murphy's dropper connection tube 1-1-1 of threeway longitudinal pipe 1-1, is connected with the drain pipe 2-1 of Murphy's dropper 2, and the lower tube for transfusion connection tube 1-1-11 of threeway longitudinal pipe 1-1 is connected with the inlet 3-1 of lower tube for transfusion 3; On the negative pressure pouch limited post 1-2-1 that negative pressure pouch 1-3 is sleeved on threeway transverse pipe 1-2 and negative pressure pouch erecting bed 1-2-2, be jointly seated in the diversion cavity 1-1-5 on threeway longitudinal pipe 1-1, form threeway negative pressure conduction device assembly.
Described threeway negative pressure conduction device 1, its longitudinal pipe 1-1 primarily of Murphy's dropper connection tube 1-1-1, Murphy's dropper mounting limit platform 1-1-2, inlet 1-1-3, input duct 1-1-4, diversion cavity 1-1-5, diversion cavity half bulb shell 1-1-6, arc guiding gutter 1-1-7, negative pressure pouch sealing erecting bed 1-1-8, transverse pipe installing port 1-1-9, lower tube for transfusion mounting limit platform 1-1-10, lower tube for transfusion connection tube 1-1-11, fluid pipeline 1-1-12, liquid outlet 1-1-13 are formed; Its Murphy's dropper connection tube 1-1-1 sealing is arranged in the drain pipe 2-1 of Murphy's dropper 2, the inner space of input duct 1-1-4 and Murphy's dropper 2, be communicated with diversion cavity 1-1-5 downwards, diversion cavity 1-1-5 is in the horizontal liquid in-out pipeline vertical connection with threeway longitudinal pipe 1-1, the hemisphere intracavity of diversion cavity has arc guiding gutter 1-1-7, itself and input duct 1-1-4, fluid pipeline 1-1-12 is connected, fluid pipeline 1-1-12 is connected with the inlet 3-1 of lower tube for transfusion 3, and liquid outlet 1-1-13 and drain pipe 1-1-11 is arranged in the inlet 3-1 of lower tube for transfusion 3.
Described threeway negative pressure conduction device 1, its threeway transverse pipe 1-2, is made up of negative pressure pouch limited post 1-2-1, negative pressure pouch erecting bed 1-2-2, threeway transverse pipe sealing mounting limit platform 1-2-3, threeway horizontal pipeline 1-2-4, threeway transverse pipe outer member union joint 1-2-5, threeway transverse pipe mouth of pipe 1-2-6; Input duct 1-1-4, the fluid pipeline 1-1-12 of threeway horizontal pipeline 1-2-4 and threeway longitudinal pipe 1-1, by negative pressure pouch 1-3 interval, are communicated with relatively; Three barrels of transverse pipe 1-2 and threeway longitudinal pipe 1-1 are assembly, in assembly, threeway transverse pipe sealing mounting limit platform 1-2-3 embeds in the transverse pipe installing port 1-1-9 of threeway longitudinal pipe 1-1, negative pressure pouch 1-3 loads in diversion cavity 1-1-5, threeway transverse pipe mouth of pipe 1-2-6 and threeway transverse pipe outer member union joint 1-2-5 is positioned at outside, can be connected with outer member is supporting.
Described threeway negative pressure conduction device 1, its negative pressure pouch 1-3, outward appearance is bag-shaped, is made up of negative pressure pouch annular mouth 1-3-1, the hemispherical head 1-3-2 of negative pressure pouch, negative pressure pouch column bag 1-3-3; In assembly, on the negative pressure pouch limited post 1-2-1 that negative pressure pouch 1-3 is sleeved on transverse pipe 1-2 and negative pressure pouch erecting bed 1-2-2, annular mouth 1-3-1 is pressed between the sealing limiting stand 1-2-3 of negative pressure pouch sealing erecting bed 1-1-8 and transverse pipe 1-2 of longitudinal pipe 1-1, is separated by the connected space of three-way flow guide chamber 1-1-5 and threeway horizontal pipeline 1-2-4; Threeway longitudinal pipe 1-1 is communicated with by negative pressure pouch 1-3 is relative with threeway transverse pipe 1-2, negative pressure pouch 1-3 in diversion cavity 1-1-5 launches with the medicinal liquid pressure change in diversion cavity 1-1-5 or shrinks, diversion cavity 1-1-5 can be full of during expansion, during contraction, wrap up in and be attached to outside negative pressure pouch limited post 1-2-1, horizontal in diversion cavity 1-1-5.
Beneficial effect:
New disposable is from cut-off infusion device tee-junction negative pressure conduction device, and by threeway longitudinal pipe and threeway transverse pipe opposing spaced apart, the medicinal liquid avoided in pipe contacts with air to produce and pollutes; Relatively be communicated with again simultaneously, inner medicinal liquid pressure changed and is converted into air pressure variations, spread out of in threeway transverse pipe and import into, being utilized further; Its structure is simple, and manufacturability is strong, low cost of manufacture; Assembling is simple, and Assembling Production efficiency is high, and product cost is low; Reasonable in design, good sealing effect, working effect is reliable and stable.
Accompanying drawing illustrates: Fig. 1, certainly cut-off transfusion device Murphy's dropper threeway negative pressure conduction device assembly.
Fig. 2, certainly cut-off infusion device tee-junction negative pressure conduction device
Fig. 3, threeway longitudinal pipe
Fig. 4, threeway transverse pipe
Fig. 5, negative pressure pouch
1, from cut-off infusion device tee-junction negative pressure conduction device
1-1, threeway longitudinal pipe
1-1-1, Murphy's dropper connection tube
1-1-2, Murphy's dropper mounting limit platform
1-1-3, inlet
1-1-4, input duct
1-1-5, diversion cavity
1-1-6, diversion cavity half bulb shell
1-1-7, arc guiding gutter
1-1-8, negative pressure pouch sealing erecting bed
1-1-9, transverse pipe installing port
1-1-10, lower tube for transfusion mounting limit platform
1-1-11, lower tube for transfusion connection tube
1-1-12, fluid pipeline
1-1-13, liquid outlet
1-2, threeway transverse pipe
1-2-1, negative pressure pouch limited post
1-2-2, negative pressure pouch erecting bed
1-2-3, transverse pipe sealing mounting limit platform
1-2-4, threeway horizontal pipeline
1-2-5, threeway transverse pipe outer member union joint
1-2-6, the threeway transverse pipe mouth of pipe
1-3 negative pressure pouch
1-3-1, negative pressure pouch annular mouth
1-3-2, negative pressure pouch ball heads
1-3-3, negative pressure pouch column bag
2, Murphy's dropper
2-1 drain pipe
3, lower tube for transfusion
3-1 inlet
Specific embodiment
New disposable automatic cut-off intravenous transfusion device, the infusion flow that its infusion flow designed can bear much larger than human body in reality transfusion, under capillary soft tube and the resistance of tiny scalp acupuncture and the adjustment of roller flow control valve, infusion flow is lower than the design discharge of tube for transfusion, scalp acupuncture and control valve form resistance to liquid medicine flow, therefore in whole infusion process, all maintain certain positive pressure in transfusion organ pipe, be in normal pressure state, and increase gradually from top to bottom; When the medicinal liquid in liquid bottle is totally lost, be positioned at the automatic cut-off device on threeway negative pressure conduction device, cut-off closed transfusion pipeline, and the medicinal liquid being in the lower tube for transfusion of transfusion state continues to flow downward, namely there is negative pressure state in tube for transfusion below stop surface, and reduce gradually from top to bottom;
In reality transfusion, medicinal liquid bottle is generally suspended on the height apart from about two meters, ground, liquid level in medicinal liquid bottle is generally higher than three-way device 40 cm, in transfusion, three-way flow guide intracavity is in normal pressure state, the outer surface of the negative pressure pouch in diversion cavity, be subject to the compressing of the surrounding's medicinal liquid pressure higher than pouch internal air pressure, to central reduction, the air in pouch is extruded discharges from horizontal siphunculus; At the end of continuous bottle or transfusion, be positioned at the stopper closed transfusion pipeline on three-way device, stop liquid medicine flow, and medicinal liquid in lower liquid-transport pipe-line under gravity, still keep down flow tendency, and now three-way flow guide intracavity is negative pressure state by normal pressure state transfer, under the negative pressure effect around of the outer surface of the negative pressure pouch in diversion cavity, expand and launch, air is inhaled in pouch by threeway transverse pipe.
The disposable automatic cut-off intravenous transfusion device threeway negative pressure conduction device that this case provides, be arranged between Murphy's dropper and lower tube for transfusion, position is moderate, medicinal liquid pressure in transfusion on three-way device, the air of latex pouch can be extruded, it is close to the design attitude from stopper, makes it can produce maximum negative pressure value after cut-off, guarantees result of use; The design of negative pressure pouch and sealing installation structure thereof is rationally ingenious, have threeway longitudinal pipe and threeway transverse pipe opposing spaced apart in infusion process, avoid the medicinal liquid in tube for transfusion to contact with air to produce and pollute, be relatively communicated with again simultaneously, make inner medicinal liquid pressure be converted into the function of air pressure; Its threeway transverse pipe can connect outer welding system, and intravenous transfusion device internal negative pressure is utilized further.Structure of the present invention is simple, is convenient to suitability for industrialized production, and can matched moulds and multimode injection moulding produce, output is high, and assembling is fast, and cost is low, high efficiency.
Claims (4)
1. the threeway negative pressure conduction device (1) of new disposable automatic cut-off intravenous transfusion device, it is arranged between Murphy's dropper (2) and lower tube for transfusion (3), by threeway longitudinal pipe (1-1), threeway transverse pipe (1-2), negative pressure pouch (1-3) is assembled; The Murphy's dropper connection tube (1-1-1) of threeway longitudinal pipe (1-1), be connected with the drain pipe (2-1) of Murphy's dropper (2), the lower tube for transfusion connection tube (1-1-11) of threeway longitudinal pipe (1-1) is connected with the inlet (3-1) of lower tube for transfusion (3); On the negative pressure pouch limited post (1-2-1) that negative pressure pouch (1-3) is sleeved on threeway transverse pipe (1-2) and negative pressure pouch erecting bed (1-2-2), jointly be seated in the diversion cavity (1-1-5) on threeway longitudinal pipe (1-1), form threeway negative pressure conduction device assembly.
2. the threeway negative pressure conduction device (1) of new disposable automatic cut-off intravenous transfusion device according to claim 1, it is characterized in that threeway longitudinal pipe (1-1) is primarily of Murphy's dropper connection tube (1-1-1), Murphy's dropper mounting limit platform (1-1-2), inlet (1-1-3), input duct (1-1-4), diversion cavity (1-1-5), diversion cavity half bulb shell (1-1-6), arc guiding gutter (1-1-7), negative pressure pouch sealing erecting bed (1-1-8), transverse pipe installing port (1-1-9), lower tube for transfusion mounting limit platform (1-1-10), lower tube for transfusion connection tube (1-1-11), fluid pipeline (1-1-12), liquid outlet (1-1-13) is formed, Murphy's dropper connection tube (1-1-1) sealing is arranged in the drain pipe (2-1) of Murphy's dropper (2), the inner space of input duct (1-1-4) and Murphy's dropper (2) and being communicated with diversion cavity (1-1-5) downwards, diversion cavity (1-1-5) is in the horizontal liquid in-out pipeline vertical connection with threeway longitudinal pipe (1-1), the hemisphere intracavity of diversion cavity has arc guiding gutter (1-1-7), this arc guiding gutter (1-1-7) and input duct (1-1-4), fluid pipeline (1-1-12) is connected, fluid pipeline (1-1-12) is connected with the inlet (3-1) of lower tube for transfusion (3), liquid outlet (1-1-13) and drain pipe (1-1-11) are arranged in the inlet (3-1) of lower tube for transfusion (3).
3. the threeway negative pressure conduction device (1) of new disposable automatic cut-off intravenous transfusion device according to claim 1, is characterized in that threeway transverse pipe (1-2) is made up of negative pressure pouch limited post (1-2-1), negative pressure pouch erecting bed (1-2-2), threeway transverse pipe sealing mounting limit platform (1-2-3), threeway horizontal pipeline (1-2-4), threeway transverse pipe outer member union joint (1-2-5), the threeway transverse pipe mouth of pipe (1-2-6); The input duct (1-1-4) of threeway horizontal pipeline (1-2-4) and threeway longitudinal pipe (1-1), fluid pipeline (1-1-12), by negative pressure pouch (1-3) interval, are communicated with relatively; Threeway transverse pipe (1-2) and threeway longitudinal pipe (1-1) form assembly, in assembly, threeway transverse pipe sealing mounting limit platform (1-2-3) embeds in the transverse pipe installing port (1-1-9) of threeway longitudinal pipe (1-1), negative pressure pouch (1-3) loads in diversion cavity (1-1-5), the threeway transverse pipe mouth of pipe (1-2-6) and threeway transverse pipe outer member union joint (1-2-5) are positioned at outside, can be connected with outer member is supporting.
4. the threeway negative pressure conduction device (1) of new disposable automatic cut-off intravenous transfusion device according to claim 1, it is characterized in that negative pressure pouch (1-3) outward appearance is bag-shaped, be made up of negative pressure pouch annular mouth (1-3-1), the hemispherical head of negative pressure pouch (1-3-2), negative pressure pouch column bag (1-3-3); On the negative pressure pouch limited post (1-2-1) that negative pressure pouch (1-3) is sleeved on threeway transverse pipe (1-2) and negative pressure pouch erecting bed (1-2-2), the transverse pipe of negative pressure pouch sealing erecting bed (1-1-8) and threeway transverse pipe (1-2) that negative pressure pouch annular mouth (1-3-1) is pressed in threeway longitudinal pipe (1-1) seals between limiting stand (1-2-3), three-way flow guide chamber (1-1-5) and the connected space of threeway horizontal pipeline (1-2-4) is separated; Threeway longitudinal pipe (1-1) is communicated with by negative pressure pouch (1-3) is relative with threeway transverse pipe (1-2), negative pressure pouch (1-3) in diversion cavity (1-1-5) is launched with the medicinal liquid pressure change in diversion cavity (1-1-5) or shrinks, diversion cavity (1-1-5) can be full of during expansion, during contraction, wrap up in and be attached to negative pressure pouch limited post (1-2-1) outside, horizontal in diversion cavity (1-1-5).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210389809.9A CN103721311B (en) | 2012-10-16 | 2012-10-16 | A kind of new disposable automatic cut-off intravenous transfusion device threeway negative pressure conduction device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210389809.9A CN103721311B (en) | 2012-10-16 | 2012-10-16 | A kind of new disposable automatic cut-off intravenous transfusion device threeway negative pressure conduction device |
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| Publication Number | Publication Date |
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| CN103721311A CN103721311A (en) | 2014-04-16 |
| CN103721311B true CN103721311B (en) | 2016-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210389809.9A Expired - Fee Related CN103721311B (en) | 2012-10-16 | 2012-10-16 | A kind of new disposable automatic cut-off intravenous transfusion device threeway negative pressure conduction device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105268059B (en) * | 2014-07-23 | 2019-09-27 | 泉州台商投资区恒鑫隆网络科技有限公司 | A kind of gravity intravenous infusion automatic cut-off negative pressure conduction module |
| CN112451759B (en) * | 2020-11-24 | 2023-04-28 | 四川大学华西医院 | PICC pipe booster unit |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CH278096A (en) * | 1950-10-20 | 1951-09-30 | Schulthess & Co Ag Maschf | Shut-off valve. |
| DE29716914U1 (en) * | 1997-09-20 | 1999-01-21 | Hans Grohe GmbH & Co KG, 77761 Schiltach | Safety device with pipe interrupter and pipe aerator |
| CN201899739U (en) * | 2010-12-20 | 2011-07-20 | 朱盛楠 | Novel infusion device |
| CN202355654U (en) * | 2011-12-05 | 2012-08-01 | 郑州昊能科技有限公司 | Composite bidirectional negative pressure conductive self-cut-off device for disposal intravenous infusion set |
| CN202397892U (en) * | 2011-12-29 | 2012-08-29 | 郑州昊能科技有限公司 | Self-cut off negative pressure transmission device for disposable venous transfusion device |
| CN203663158U (en) * | 2012-10-16 | 2014-06-25 | 郑州昊能科技有限公司 | Three-way negative pressure conduction device of novel disposable automatic cut-off intravenous infusion device |
-
2012
- 2012-10-16 CN CN201210389809.9A patent/CN103721311B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH278096A (en) * | 1950-10-20 | 1951-09-30 | Schulthess & Co Ag Maschf | Shut-off valve. |
| DE29716914U1 (en) * | 1997-09-20 | 1999-01-21 | Hans Grohe GmbH & Co KG, 77761 Schiltach | Safety device with pipe interrupter and pipe aerator |
| CN201899739U (en) * | 2010-12-20 | 2011-07-20 | 朱盛楠 | Novel infusion device |
| CN202355654U (en) * | 2011-12-05 | 2012-08-01 | 郑州昊能科技有限公司 | Composite bidirectional negative pressure conductive self-cut-off device for disposal intravenous infusion set |
| CN202397892U (en) * | 2011-12-29 | 2012-08-29 | 郑州昊能科技有限公司 | Self-cut off negative pressure transmission device for disposable venous transfusion device |
| CN203663158U (en) * | 2012-10-16 | 2014-06-25 | 郑州昊能科技有限公司 | Three-way negative pressure conduction device of novel disposable automatic cut-off intravenous infusion device |
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| CN103721311A (en) | 2014-04-16 |
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