CN103721311A - Tee-joint negative pressure conduction device for novel disposable automatic cut-off vein infusion set - Google Patents
Tee-joint negative pressure conduction device for novel disposable automatic cut-off vein infusion set Download PDFInfo
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- CN103721311A CN103721311A CN201210389809.9A CN201210389809A CN103721311A CN 103721311 A CN103721311 A CN 103721311A CN 201210389809 A CN201210389809 A CN 201210389809A CN 103721311 A CN103721311 A CN 103721311A
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- negative pressure
- threeway
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Abstract
The invention provides a tee-joint negative pressure conduction device for a novel disposable automatic cut-off vein infusion set. The tee-joint negative pressure conduction device is installed between a Murphy pipe and a lower infusion pipe of the infusion set. In the process of infusion, the tee-joint negative pressure conduction device has the functions of relatively separating a tee-joint longitudinal pipe from a tee-joint transversal pipe to prevent liquid medicine in the infusion pipe from being polluted by air through contaction and enabling the tee-joint longitudinal pipe to be relatively communicated with the tee-joint transversal pipe to convert the pressure of the internal liquid medicine into the air pressure. The tee-joint transversal pipe can be connected with an external system so that the negative pressure inside the vein infusion set can be further utilized. The tee-joint negative pressure conduction device is simple in structure, reasonable in design, high in manufacturability and assembling production efficiency, low in manufacturing cost and stable and reliable in working effect.
Description
Technical field
The present invention relates to a kind of threeway negative pressure conduction device of new type auto cut-off intravenous transfusion device, particularly a kind of transfusion device inner liquid medicine that do not pollute can accurately conduct the threeway negative pressure conduction device that transfusion device overpressure changes when transfusion finishes.
Background technology
The disposable intravenous infusion set using in venous transfusion nursing at present, 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 of using in disposable intravenous infusion set invention, the relevant improved patent of transfusion device approximately has thousands of more than, and major part is all the revising of the functions around aspects such as cut-off, blood return prevention, alarm, Anti-bubble, anti-needle rollers; These are enough to illustrate that disposable intravenous infusion set has arrived needs improved time really, its power item has also highlighted the existing problem of disposable intravenous infusion set and defect thereof, so mainly contain two large classes about transfusion device improvement project: a class is to utilize transfusion device self power automatic cut-off blood return prevention, anti-needle roller (complication after puncture) Anti-bubble etc.; Another kind of is to use the auxiliary cut-off of electronic monitoring technology external force alarm; Utilizing aspect transfusion device self power automatic cut-off blood return prevention, its main technical schemes is in Murphy's dropper, to increase automatic cut-off device, as latex ball sealer, float needle, flap valve, valve, conical plug etc., its object is exactly that these devices can decline thereupon when medicinal liquid is totally lost liquid level decline, self-blocking sealing liquid-transport pipe-line, stop medicinal liquid to flow, keep tube for transfusion internal pressure, preventing that tube for transfusion inner liquid medicine is counter flows, and blood back phenomenon occurs; Or at tube for transfusion bottom and end, the check valve of various structures is installed, and make the medicinal liquid can only one-way flow in tube for transfusion, avoid anti-flow phenomenon, thereby avoided blood back; Aspect the auxiliary cut-off of use electronic monitoring technology external force 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 in time the information that medicinal liquid is totally lost, recycling electromagnetic technique clamping tube for transfusion is realized automatic cut-off, and sends warning signal.
Just about utilizing the patent Xiang Eryan of the 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 exist function all more single, lack systematicness, and it is not mature enough perfect to realize technical scheme, manufacturability is poor, is unfavorable for the number of drawbacks such as application of electronic technology, causes this class technological invention slowly to can not get promotion and application, with regard to the auxiliary cut-off of another kind of use electric detective technology external force 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 class invention advanced technology, scheme is fairly perfect, both realized the automatic cut-off blood return prevention Anti-bubble function of venous transfusion, also realized alarm monitoring function simultaneously, but it has evaded the improvement to transfusion device, make the existing deficiency of disposable intravenous infusion set self can not get solving, transfusion device could not be improved and develop, 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 so this class technology through wideling popularize, be 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 existing problem in venous transfusion comprehensively, meets growing transfusion nursing requirement; Only have both are combined, the existing defect of transfusion device self and deficiency are improved and perfect, make it both to possess automatic cut-off Anti-bubble blood return prevention function, be convenient to again the application of electronic technology, the negative pressure of utilizing on this basis its cut-off to produce, the modern management that realizes venous transfusion in conjunction with electronic technology is undoubtedly best selection; Bridge and tie that threeway negative pressure conduction device combines this two classes technology just, it is very necessary therefore researching and developing and provide new more simple and practical threeway negative pressure conduction technique.
Summary of the invention
The object of the present invention is to provide a kind of threeway negative pressure conduction device of new type auto cut-off transfusion device, particularly a kind of transfusion device inner liquid medicine that do not pollute can accurately conduct the threeway negative pressure conduction device that transfusion device overpressure changes after transfusion finishes.In order to achieve the above object, technical scheme of the present invention is achieved in that described threeway negative pressure conduction device 1, be arranged between Murphy's dropper 2 and lower tube for transfusion 3, and 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; Negative pressure pouch 1-3 is sleeved on the negative pressure pouch limited post 1-2-1 and negative pressure pouch erecting bed 1-2-2 of threeway transverse pipe 1-2, is jointly seated in the diversion cavity 1-1-5 on threeway longitudinal pipe 1-1, forms threeway negative pressure conduction device assembly.
Described threeway negative pressure conduction device 1, its longitudinal pipe 1-1 is mainly by 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 forms; Its Murphy's dropper connection tube 1-1-1 sealing is arranged in the drain pipe 2-1 of Murphy's dropper 2, input duct 1-1-4 is communicated with the inner chamber of Murphy's dropper 2, be communicated with diversion cavity 1-1-5 downwards, diversion cavity 1-1-5 is laterally and the liquid in-out pipeline vertical connection of 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 are 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, consists 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; 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; 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 packs 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 are positioned at outside, can be connected with outer member is supporting.
Described threeway negative pressure conduction device 1, its negative pressure pouch 1-3, it is bag-shaped that outward appearance is, and negative pressure pouch annular mouth 1-3-1, hemispherical 1-3-2 of negative pressure pouch, negative pressure pouch column bag 1-3-3, consists of; In assembly, negative pressure pouch 1-3 is sleeved on the negative pressure pouch limited post 1-2-1 and negative pressure pouch erecting bed 1-2-2 of transverse pipe 1-2, annular mouth 1-3-1 is pressed between the negative pressure pouch sealing erecting bed 1-1-8 and the sealing limiting stand 1-2-3 of transverse pipe 1-2 of longitudinal pipe 1-1, and the connected space of three-way flow guide chamber 1-1-5 and threeway horizontal pipeline 1-2-4 is separated; Threeway longitudinal pipe 1-1 with threeway transverse pipe 1-2 by relative connection of negative pressure pouch 1-3, negative pressure pouch 1-3 in diversion cavity 1-1-5 changes and launches or shrink with the medicinal liquid pressure in diversion cavity 1-1-5, during expansion, can be full of diversion cavity 1-1-5, 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.
Beneficial effect:
New disposable is from ending infusion device tee-junction negative pressure conduction device, separates threeway longitudinal pipe is relative with threeway transverse pipe, avoided the medicinal liquid in pipe to contact generation pollution with air; Relatively be communicated with again simultaneously, inner medicinal liquid pressure changed and be converted into air pressure variations, in threeway transverse pipe, spread out of and import into, further utilized; It is simple in structure, 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 explanation: Fig. 1, certainly end transfusion device Murphy's dropper threeway negative pressure conduction device assembly.
Fig. 2, certainly end infusion device tee-junction negative pressure conduction device
Fig. 3, threeway longitudinal pipe
Fig. 4, threeway transverse pipe
Fig. 5, negative pressure pouch
1, certainly end 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 the infusion flow of its design can bear much larger than human body in reality transfusion, under the resistance of capillary soft tube and tiny scalp acupuncture and the adjusting of roller flow control valve, infusion flow is lower than the design discharge of tube for transfusion, scalp acupuncture and control valve flow and form resistance medicinal liquid, therefore, in whole infusion process, in transfusion organ pipe, all maintain certain positive pressure, in normal pressure state, and increase gradually from top to bottom; 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 of lower tube for transfusion in transfusion state continues to flow downward, in tube for transfusion below stop surface, there is negative pressure state, and reduce gradually from top to bottom;
In reality transfusion, medicinal liquid bottle is generally suspended on the height of two meters of left and right apart from ground, liquid level in medicinal liquid bottle is generally higher than 40 centimetres of left and right of three-way device, 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 higher than surrounding's medicinal liquid pressure of pouch internal air pressure, to center, shrink, the air in pouch is extruded from horizontal siphunculus and discharges; When continuous bottle or transfusion end, be positioned at the stopper closed transfusion pipeline on three-way device, stop medicinal liquid to flow, and medicinal liquid in lower liquid-transport pipe-line is under action of gravity, still the flow tendency that keeps down, now three-way flow guide intracavity is negative pressure state by normal pressure state-transition, 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, the design attitude that it is close to from stopper, makes it after cut-off, can produce maximum negative pressure value, guarantees result of use; The design of negative pressure pouch and sealing installation structure thereof is ingenious rationally, in infusion process, have and separate threeway longitudinal pipe is relative with threeway transverse pipe, avoid the medicinal liquid in tube for transfusion to contact generation pollution with air, 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 further utilized.The present invention is simple in structure, is convenient to suitability for industrialized production, can matched moulds and multimode injection moulding produce, output is high, assembling is fast, 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); Negative pressure pouch (1-3) is sleeved on the negative pressure pouch limited post (1-2-1) and negative pressure pouch erecting bed (1-2-2) of threeway transverse pipe (1-2), jointly be seated in the diversion cavity 1-1-5 on threeway longitudinal pipe (1-1), form threeway negative pressure conduction device assembly.
2. according to the negative conduction device (1) of the threeway of the new disposable automatic cut-off intravenous transfusion device described in claim 1, it is characterized in that threeway longitudinal pipe (1-1) is mainly by 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 (1-1-100, lower tube for transfusion connection tube (1-1-11), fluid pipeline (1-1-12), liquid outlet (1-1-13) forms, its Murphy's dropper connection tube (1-1-1) sealing is arranged in the drain pipe (2-1) of Murphy's dropper (2), input duct (1-1-4) is communicated with the inner chamber of Murphy's dropper (2), be communicated with diversion cavity (1-1-5) downwards, diversion cavity (1-1-5) is laterally and the liquid in-out pipeline vertical connection of 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), liquid outlet (1-1-13) is arranged in the inlet (3-1) of lower tube for transfusion (3) with drain pipe (1-1-11).
According to the new disposable described in claim 1 from end intravenous transfusion device threeway negative pressure conduction device (1), it is characterized in that threeway transverse pipe (1-2), by 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), formed; 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; Three barrels of transverse pipe (1-2) are assembly with threeway longitudinal pipe (1-1), 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) packs 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.
According to the new disposable described in claim 1 from end intravenous transfusion device threeway pressure conduction device (1), it is characterized in that negative pressure pouch (1-3), it is bag-shaped that outward appearance is, and 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), consists of; In assembly, negative pressure pouch (1-3) is sleeved on the negative pressure pouch limited post (1-2-1) and negative pressure pouch erecting bed (1-2-2) of threeway transverse pipe (1-2), negative pressure pouch annular mouth (1-3-1) is pressed between the negative pressure pouch sealing erecting bed (1-1-8) and the transverse pipe sealing limiting stand (1-2-3) of threeway transverse pipe (1-2) of threeway longitudinal pipe (1-1), and three-way flow guide chamber (1-1-5) separated with the connected space of threeway horizontal pipeline (1-2-4); Threeway longitudinal pipe (1-1) passes through the relative connection of negative pressure pouch (1-3) with threeway transverse pipe (1-2), negative pressure pouch (1-3) in diversion cavity (1-1-5) changes and launches or shrink with the medicinal liquid pressure in diversion cavity (1-1-5), during expansion, can be full of diversion cavity (1-1-5), 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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Priority Applications (1)
| 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 true CN103721311A (en) | 2014-04-16 |
| CN103721311B CN103721311B (en) | 2016-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105268059A (en) * | 2014-07-23 | 2016-01-27 | 河南忱诺科技有限公司 | Automatic cut-off negative pressure conduction module of gravity venous transfusion |
| CN112451759A (en) * | 2020-11-24 | 2021-03-09 | 四川大学华西医院 | PICC pipe booster unit |
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| 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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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 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105268059A (en) * | 2014-07-23 | 2016-01-27 | 河南忱诺科技有限公司 | Automatic cut-off negative pressure conduction module of gravity venous transfusion |
| 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 |
| CN112451759A (en) * | 2020-11-24 | 2021-03-09 | 四川大学华西医院 | PICC pipe booster unit |
| CN112451759B (en) * | 2020-11-24 | 2023-04-28 | 四川大学华西医院 | PICC pipe booster unit |
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| CN103721311B (en) | 2016-04-06 |
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