CN203089885U - Flexible transfusion bag - Google Patents

Abstract

The utility model discloses a flexible transfusion bag which comprises a bag, hanging holes, bag tail welded sides, upper bag welded sides, lateral bag welded sides, bag sealing surfaces and ports. The hanging holes are positioned at a bag tail, the bag tail welded sides are positioned at one end of the bag, the upper bag welded sides are opposite to the bag tail welded sides, the lateral bag welded sides are positioned on two sides of the bag and are arranged among the bag tail welded sides and the upper bag welded sides, the ports are welded on the bag and are positioned on one sides of the upper bag welded sides, and the bag sealing surfaces which are subjected to synchronous heat sealing after liquid medicine is filled in the flexible transparent bag are separated from and the ports, so that operation for liquid filling and operation for transfusion or dosing can be carried out separately. The flexible transfusion bag has the advantages that a liquid filling opening is separated from the ports, the liquid filling opening and the ports are synchronously and timely subjected to heat sealing after the liquid medicine is filled into the flexible transfusion bag, and the liquid filling efficiency is improved; the flexible transfusion bag is provided with the integrally formed ports, and the ports are welded with the bag before the liquid medicine is filled into the flexible transfusion bag, so that the cost is reduced, and pollution is prevented; and a clip clamps the bag to convey the bag after the liquid medicine is filled into the flexible transfusion bag, so that liquid leakage is prevented.

Description

A kind of transfusion flexible bag

Technical field

This utility model relates to a kind of medical infusion soft bag, particularly a kind of jumbo medical infusion soft bag.

Background technology

Existing large capacity transfusion packing container mainly contains several types commonly used such as vial, duroplasts bottle and transfusion bag.Vial needs constantly to introduce air through vent line in vial in infusion process, causes pollutant such as dust in air to enter and causes drug contamination in the vial; The hardness of duroplasts bottle is also bigger, still need use vent line; And transfusion flexible bag only just can make bag interior liquid export by the effect of external atmosphere pressure, need not to introduce air; And material is transparent, and is easy to use, obtains application more and more widely in present medical infusion.

The soft bag of existing large capacity transfusion mainly is by infusion port pipe or dosing mouth liquid drug in process of production, seals afterwards.Liquid feeding mouth is that the size design according to infusion port pipe or dosing mouth forms, the size of infusion port pipe or dosing mouth generally can not be excessive, and the size of liquid feeding mouth also just is restricted thereupon, and by infusion port pipe or dosing mouth liquid drug, irritate the liquid time and spin out naturally, filling liquid efficient is lower.In addition, infusion port pipe of the prior art or dosing mouth are by special-purpose sealing-plug and flexible pipe or special-purpose seal cover and special purpose interface sealing composition, owing to consider and irritate liquid efficient, the diameter of its infusion port pipe or dosing mouth often increases slightly, and the tensile force that the welding film that the diameter change causes infusion port pipe or dosing mouth to cover greatly on every side will bear will be big more, and then, in processes such as production, transportation and use, be subjected to external force effect generation seepage easily in the tension-thining thereupon of weld welding film.In addition, the infusion port pipe of prior art or the cost of dosing mouth are often higher, as shown in Figure 1 transfusion flexible bag, its infusion port pipe and dosing mouth adopt special-purpose sealing-plug sealing, its complex structure, cost is higher, and sealing property is influenced by the process equipment precision in process of production; Transfusion flexible bag as shown in Figure 2, its infusion port pipe also are dosing mouth employing ship shape interface simultaneously, and this interface overall dimension is bigger, and the welding position is more, causes cost higher.

After the soft bag of existing large capacity transfusion machines, be after transfusion flexible bag is finished the heat seal welding of sealing-plug or seal cover and interface, often adopt the transmission of the interface position realization transfusion flexible bag of special-purpose machinery tong clamping infusion port pipe or dosing mouth, and because the welding of heat seal just, welding effect is also unstable, and because transfusion flexible bag is jumbo product, thereby clamping interface position causes the welding film at interface position to stretch easily the leakage situation appears.

The utility model content

The problems referred to above at the prior art existence, irritate liquid efficient in order to improve, reduce seepage, reduce production costs simultaneously, this utility model provides the method for a kind of transfusion flexible bag and packing medicinal liquid thereof, adopt the interface structure of sealing-plug or seal cover and infusion port pipe or dosing mouth one, before irritating liquid, be welded on the bag of transfusion flexible bag in advance, in irritating obsolete processes such as liquid, transportation and preservation, no longer connect this infusion port pipe and/or dosing mouth, only connect in use, thereby kept health, avoid introducing and pollute, reduced production cost simultaneously; In addition liquid feeding mouth is separated with the infusion port pipe, at other positions of transfusion flexible bag liquid feeding mouth is set, this moment, the size of liquid feeding mouth no longer was subjected to the restriction of infusion port pipe size, thereby had improved the filling liquid efficient during the plant produced; After filling liquid is finished, in time synchronously finish heat seal sealing liquid feeding mouth.After the soft bag production of large capacity transfusion was finished, tong is clamping interface position no longer, and stretching with the welding film of avoiding the interface position causes seepage.

A kind of transfusion flexible bag of this utility model, comprise bag, fall the hole at the extension of bag tail, in real toe on the bag on the real toe of bag tail of bag one end, the bag other end relative, weld side, bag sealing surface in fact in the bag both sides and at the bag between the real toe on the real toe of bag tail and the bag with the real toe of bag tail, also comprise and be welded on the interface on the real toe one side pocket body on the bag, wherein, the described bag sealing surface and the interface branch that are used for after liquid medicine filling is finished the sealing of heat seal synchronously are arranged, to realize separating of filling liquid and transfusion or dosing.

Further; interface from an end to the other end order that contacts with bag comprise the joint weld end face, every liquid film sheet, butyl rubber plug, interface protection diaphragm; and they are wholely set into described interface; described joint weld end face is used for welding with bag; describedly be used for isolating with medicinal liquid every the liquid film sheet; described butyl rubber plug is used for sealing, and described interface protection diaphragm is used for protection and sealing.

Further, described bag sealing surface is arranged on the real weldering of bag side, and parallel with the real weldering of bag tail side.

Further, described bag sealing surface is arranged on real toe on the bag, and parallel with real toe on the bag.

Further, described transfusion flexible bag also comprises the retaining liquid angle that is arranged on the real toe of adjacent bag tail position.

Further, described bag sealing surface is arranged on hangs the side of hole away from the bag tail, and parallel with the real toe of bag tail.

Further, described interface is more than one, and wherein having an interface at least is the infusion port pipe.

Further, the material that described transfusion flexible bag adopted is not limited to non-PVC material, and described transfusion flexible bag can be set to single chamber bag, two chambers bag, three Room bags or the chamber bag more than four as required.

This utility model also provides a kind of method of transfusion flexible bag packing medicinal liquid, the medicinal liquid of carrying before the packing passes through liquor piping successively, the liquor piping Pressure gauge, liquid medicine filter, manual diaphragm valve, mass flowmenter, the fill pneumatic operated valve, liquid feeding mouth and transfusion flexible bag, at first liquor piping receives the semi-finished product medicinal liquid, after the inspection of liquor piping Pressure gauge meets qualified pressure, the semi-finished product medicinal liquid is sent into the liquid medicine filter aseptic filtration, medicinal liquid after the aseptic filtration is through manually diaphragm valve and mass flowmenter are accurately controlled the folding of fill pneumatic operated valve by high-speed electromagnetic valve again, wherein, make medicinal liquid be filled into foregoing transfusion flexible bag by liquid feeding mouth, after fill finishes, finish the heat seal sealing of bag sealing surface and the cutting that extension the hole synchronously.

Further, after transfusion flexible bag had been packed medicinal liquid, when subsequent processing was transmitted, transmitted at the bag position of tong clamping transfusion flexible bag.

This utility model provides the method for a kind of transfusion flexible bag and packing medicinal liquid thereof, adopted integrally formed interface structure, both be applicable to that infusion port pipe and dosing mouth separated the situation that is set to two above interfaces, be applicable to that also infusion port pipe and dosing mouth are set to the situation of an interface, because this interface was welded on the bag of transfusion flexible bag before irritating liquid in advance, in irritating liquid and after irritating liquid, use before this transfusion flexible bag, all disconnect above-mentioned interface, compared to existing technology, avoided introducing the possibility of polluting from seam, so need special-purpose complicated sealing-plug or seal cover be set at interface, reduced production cost, and health more; In addition, liquid feeding mouth is set outside interface, so that liquid feeding mouth separates with interface, the size of liquid feeding mouth is limited by interface no longer, thereby during plant produced, improved filling liquid efficient greatly, shortened the filling liquid time, after filling liquid is finished, finish the cutting work that heat seal encapsulation and extension the hole synchronously in time.After having packed medicinal liquid, the bag position of tong clamping transfusion flexible bag is sent to subsequent processing at last, thereby makes bag steady in transport process; Avoided the welding effect of film material that clamping interface position is caused in the prior art and interface also unstable, and for the soft bag of large capacity transfusion, bigger to bag with the damage of transfusion adnexa weld, very easily cause bag and transfusion adnexa welding position leakage, also can occur jiggly rock etc. in the transport process because bag is big.

Description of drawings

Fig. 1 is the main TV structure figure of prior art 1;

Fig. 2 is the main TV structure figure of prior art 2;

Fig. 3 is the main TV structure figure of this utility model embodiment 1;

Fig. 4 is the local amplification assumption diagram of the bag tail bit of this utility model transfusion flexible bag embodiment 1;

Fig. 5 is the local amplification assumption diagram at the interface position of this utility model transfusion flexible bag embodiment 1;

Fig. 6 is the local amplification stereogram at the interface position of this utility model transfusion flexible bag embodiment 1;

Fig. 7-Figure 11 is that first kind of this utility model transfusion flexible bag embodiment 1 changes structure chart;

Figure 12-Figure 13 is that second kind of this utility model transfusion flexible bag embodiment 1 changes structure chart;

Figure 14-Figure 15 is the third variation structure chart of this utility model transfusion flexible bag embodiment 1;

Figure 16-Figure 19 is that the 4th kind of this utility model transfusion flexible bag embodiment 1 changes structure chart;

Figure 20-Figure 21 is that the 5th kind of this utility model transfusion flexible bag embodiment 1 changes structure chart;

Figure 22-Figure 23 is that the 6th kind of this utility model transfusion flexible bag embodiment 1 changes structure chart;

Figure 24-Figure 25 is that the 7th kind of this utility model transfusion flexible bag embodiment 1 changes structure chart;

Figure 26-Figure 27 is that the 8th kind of this utility model transfusion flexible bag embodiment 1 changes structure chart;

Figure 28-Figure 29 is that the 9th kind of this utility model transfusion flexible bag embodiment 1 changes structure chart;

Figure 30-Figure 31 is that the tenth kind of this utility model transfusion flexible bag embodiment 1 changes structure chart;

Figure 32-Figure 33 is that the 11 kind of this utility model transfusion flexible bag embodiment 1 changes structure chart;

Figure 34-Figure 35 is that the 12 kind of this utility model transfusion flexible bag embodiment 1 changes structure chart.

Figure 36 is the main TV structure figure of this utility model transfusion flexible bag packing medicinal liquid method embodiment 1;

Figure 37 is the variation structure chart of this utility model transfusion flexible bag packing medicinal liquid method embodiment 1;

Wherein:

Fig. 1: 1 liquid feeding mouth, 2 liquid medicine filters, 3 liquor pipings, 4 liquor piping Pressure gauges, 5 packing containers;

Fig. 2: 1 liquor piping Pressure gauge, 2 liquor pipings, 3 mass flowmenters, 4 liquid feeding mouths, 5 manual diaphragm valves, 6 transfusion bag, 7 liquid medicine filters, 8 transfusion bag transfusion interface, 9 fill pneumatic operated valves

Fig. 3-Figure 35: 1 hangs the hole, 2 first bags of real toes of tail, the real weldering of 3 first bags side, real toe on 4 first bags, 5 dosing mouths, 6 infusion port pipes, real toe on 7 second bags, 8 second bags actual measurement toe, 9 second bags of real toes of tail, 10 bag sealing surfaces, 11 bags, 12 printing zones, 13 arc corners, 14 liquid feeding mouths, 15 second retaining liquid angles, 16 first retaining liquid angles, 17 transfusion flexible bag silhouette edges, 18 interface protection diaphragms, 19 butyl rubber plugs, 20 every the liquid film sheet, 21 joint weld end faces;

Figure 36-Figure 37: 1 transfusion flexible bag, 2 liquid feeding mouths, 3 liquid medicine filters, 4 liquor pipings, 5 liquor piping Pressure gauges, 6 fill pneumatic operated valves, 7 mass flowmenters, 8 manual diaphragm valves.

The specific embodiment

The utility model is described in further detail below in conjunction with drawings and Examples.

Transfusion flexible bag embodiment 1

As Fig. 3-shown in Figure 6, comprise bag 11, the extension that is positioned at bag tail hole 1, be positioned at the real toe 2 of first bag of tail and second bag of real toe 9 of tail of bag 11 1 ends, real toe 7 on the real toe 4 and second bag on first bag on bag 11 other ends relative with the real toe of the real toe 2 of first bag of tail and second bag of tail 9, in bag 11 both sides and at first bag real weldering side 3 and the real side 8 that welds of second bag between the real toe 7 on the real toe 4 and second bag on the real toe 2 of first bag of tail and second bag of real toe 9 of tail and first bag, bag sealing surface 10, also comprise and be welded on first bag dosing mouth 5 and the infusion port pipe 6 on the real toe 7 one side pocket bodies 11 in the real toe 4 and second bag, unlike the prior art, the bag sealing surface 10 that is used for after liquid medicine filling is finished the sealing of heat seal synchronously was arranged with dosing mouth 5 and infusion port pipe in 6 minutes, to realize irritating separating of liquid and transfusion or dosing.Before irritating liquid, dosing mouth 5 and infusion port pipe 6 are welded on the bag 11, when irritating liquid, medicinal liquid pours into from liquid feeding mouth 14, as shown in Figure 4, below the real toe 2 of first bag of tail, be provided with the first retaining liquid angle 16, below the real toe 9 of second bag of tail, be provided with the second retaining liquid angle 15, irritating in the process of liquid by liquid feeding mouth 14, the influence that liquid can be stressed has a process of upwards backwashing, the first retaining liquid angle 16 and the second retaining liquid angle 15 just can stop the influence of medicinal liquid to liquid feeding mouth 14, thereby avoid irritating the residual liquid feeding mouth 14 of liquid process herb liquid, are beneficial to irritate sealing after the liquid end.Irritate after liquid finishes, at this station immediately by sealing die to bag sealing surface 10 heat seal solder ups, cut out by cutter simultaneously and hang hole 1, finish filling liquid.Because the size of liquid feeding mouth 14 is no longer as the restriction that is subjected to dosing mouth 5 and infusion port pipe 6 sizes in the prior art, the size of liquid feeding mouth can be held voluntarily according to the concrete size of irritating liquid speed and transfusion flexible bag, therefore filling liquid efficient of the present utility model thereby raising greatly.In addition, but information such as the title of printshop packing medicinal liquid, producer, content also on bag 11 and the printing zone 12.

In addition; in the present embodiment dosing mouth 5 and infusion port pipe 6 from an end to the other end order that contacts with bag 11 comprise joint weld end face 21, every liquid film sheet 20, butyl rubber plug 19, interface protection diaphragm 18; and the said structure integrated setting becomes dosing mouth 5 and infusion port pipe 6; joint weld end face 21 is used for and bag 11 welding; be used for isolating every liquid film sheet 20 with medicinal liquid; butyl rubber plug 19 is used for sealing, and interface protection diaphragm 18 is used for protection and sealing.Because before irritating liquid, dosing mouth 5 and infusion port pipe 6 have been welded on the bag 11, and in irritating the liquid process, reach and irritate liquid end back before using this transfusion flexible bag, all can conducting dosing mouth 5 and infusion port pipe 6, also just avoided prior art to irritate in the liquid process by dosing mouth 5 and infusion port pipe 6, dosing mouth 5 contacts with extraneous with infusion port pipe 6, thereby introduces the possibility of pollutant.And, because dosing mouth 5 of the prior art and infusion port pipe 6 adopts special-purpose sealing-plug or sealed tube with fit system such as interference fit, matched in clearance, excessively mode such as cooperations seals, thereby may give the medicinal liquid introducing that is sealed small pollutant in size gap.And among this embodiment this utility model owing to passed through every liquid film sheet 20, butyl rubber plug 19, the 18 triple settings of interface protection diaphragm; and before irritating liquid, be welded on the bag 11 by joint weld end face 21; afterwards until using just conducting dosing mouth 5 and infusion port pipe 6; all the other all not conductings have improved health level.Simultaneously owing to have only in use just conducting, just need not be in prior art specialized designs sealing-plug or seal cover, its cost has also just reduced.

Certainly, the position of liquid feeding mouth 14 of the present utility model is not limited to Fig. 3-position shown in Figure 6, also can be as Figure 12-shown in Figure 13 being arranged on the real weldering of first bag side 3, also can be arranged on the real weldering of second bag side 8, also can be arranged on first bag in the real toe 4, also can be arranged on second bag in the real toe 7 as Figure 14-shown in Figure 15.

In addition, dosing mouth 5 and infusion port pipe 6 also are not limited to must be separately, and both interfaces that also can permeate are realized two kinds of functions.Simultaneously, also can further the single chamber bag be arranged side by side and be two chambers bag, three Room bags or four transfusion flexible bags more than the chamber, and adopt an interface, two interfaces, three interfaces or the interface more than four.And these interfaces can possess two kinds of functions of dosing mouth 5 and infusion port pipe 6 simultaneously for an interface, also can be set to dosing mouth 5 and infusion port pipe 6 respectively.

The material of transfusion flexible bag can be the PVC material, can not be the PVC material also, only needs to realize the function of soft bag, has lower breathability, water penetration simultaneously, and transparent material is suitable for preserving medicinal liquid and uses as transfusion flexible bag and all can.

In order to verify the performance of this utility model transfusion flexible bag, by following experiment, so that the conventional transfusion flexible bag of the soft bag of large capacity transfusion of the present utility model with same capacity compared, and it is as follows to write down experimental data:

Its peripheral heat seal pulling force monitor value after the molding of 1 infusion solutions packaging bag afterbody filling liquid bag type.

2. during the big specification infusion products of full automatic bag making, filling and sealing machine production, be to irritate its equipment cycle periods contrast of liquid mode with two kinds.

3. the full automatic bag making, filling and sealing machine production equipment is irritated liquid infusion products and infusion port with a certain position of bag and is irritated the infusion products of liquid and spot-check leakage data statistics after 2000 bags of its quality contrasts of infusion products of each specification (fall, withstand voltage) test arbitrarily.

3.1 fall-down test data

3.2 withstand voltage test data

The inner investment material of the wide 80mm of 4 standard bag makes its afterbody of bag of different size and irritates liquid opening and afterbody film material opening experiment correction data.

Draw to draw a conclusion from above-mentioned experiment:

1. above-mentioned experiment draw its flexible containers impose bag periphery heat sealing strength that bag periphery heat sealing strength that afterbody irritates liquid irritates liquid with infusion port relatively its afterbody of back bag periphery heat sealing strength of irritating liquid be higher than the bag periphery heat sealing strength that infusion port is irritated liquid.

2. impose afterbody and irritate the flexible package bag circulation time no significant difference of its bag circulation time of flexible package bag of liquid, irritate the bag that the bag of liquid mode is starkly lower than infusion port filling liquid but the circulation time of filling liquid imposes afterbody than infusion port filling liquid.

3. afterbody is irritated the flexible containers bag of liquid after the 2000 bags of bags with infusion port filling liquid of sampling immediately carry out the drop test contrast, the flexible containers bag of its afterbody filling liquid is starkly lower than bag, the especially infusion port of infusion port filling liquid and the seepage of bag weld obviously will be lower than conventional flexible containers of irritating liquid.

4. afterbody is irritated the flexible containers bag of liquid after the 2000 bags of bags with infusion port filling liquid of sampling immediately carry out withstand voltage experiment contrast, its leakage situation is that the flexible containers bag of afterbody filling liquid is starkly lower than the bag that infusion port is irritated liquid, even the flexible containers bag of afterbody filling liquid can stand the 0.80bar proof pressure.

5. carrying out afterbody less than 1 liter single chamber bag flexible packing products, to irritate its bag afterbody opening optimum size of liquid mode be between the 40---60mm, the size of opening size, the suction film openings of sizes on decision liquid feeding mouth both sides when irritating liquid and the degree of stability of bag clamping on the tong of two ends.

Performances such as to sum up, the soft bag of the large capacity transfusion of this utility model and prior art is compared, and the circulation time of have better heat sealing strength, irritating liquid is also shorter, seepage is low, proof pressure is stronger.

Transfusion flexible bag packing medicinal liquid method embodiment 1

Pack the method for medicinal liquid as Figure 36-transfusion flexible bag shown in Figure 37, the medicinal liquid of carrying before the medicinal liquid packing passes through liquor piping 4 successively, liquor piping Pressure gauge 5, liquid medicine filter 3, manual diaphragm valve 8, mass flowmenter 7, fill pneumatic operated valve 6, liquid feeding mouth 2 and transfusion flexible bag, at first liquor piping 4 receives the semi-finished product medicinal liquid, after 5 inspections of liquor piping Pressure gauge meet qualified pressure, the semi-finished product medicinal liquid is sent into liquid medicine filter 3 aseptic filtrations, medicinal liquid after the aseptic filtration is through manually diaphragm valve 8 and mass flowmenter 7 are accurately controlled 6 foldings of fill pneumatic operated valve by high-speed electromagnetic valve again, wherein, make medicinal liquid be filled into foregoing transfusion flexible bag by liquid feeding mouth 2, after fill finishes, in time finish the heat seal sealing of bag sealing surface and the cutting that extension the hole synchronously.

The semi-finished product medicinal liquid of sending here adopts 7 pairs of medicinal liquids of high-accuracy mass flowmenter to measure by the incompatible fill amount that reaches setting of high-speed electromagnetic valve control fill valve opening solenoid through the medicinal liquid pipeline 4 that rustless steel pipeline system enters the fill station.Simultaneously in the liquid medicine filling process, also want evacuation, towards protective gas.To the bag evacuation time, reach the purpose that detects the bag integrity simultaneously.After fill, want aerofluxus, get rid of unnecessary gas in the bag chamber, and pour protective gas at one time with protection liquid.Fill is carried out the heat seal solder up by sealing die to bag after finishing immediately, and sealing die is by the heating of temperature control system control heating system, and temperature can be set and control the temperature constant state that the sealing die temperature is in design temperature automatically by temperature control system.After the bag fill is finished, finish immediately and seal, guarantee quality of liquid medicine to greatest extent.After first group of bag carries out filling and sealing, prepare immediately to organize the fill of bag down and seal.

After transfusion flexible bag had been packed medicinal liquid, when subsequent processing was transmitted, transmitted at the bag position of tong clamping transfusion flexible bag, thereby make bag steady in transport process; Avoided the welding effect of film material that clamping interface position is caused in the prior art and interface also unstable, bigger to bag with the damage of transfusion adnexa weld, very easily cause bag and transfusion adnexa welding position leakage, also can occur jiggly rock etc. in the transport process because bag is big.

A kind of transfusion flexible bag of this utility model is not limited to the above-mentioned embodiment that lists.The person of ordinary skill in the field should know; more than describing only is specific embodiment of the utility model, and any pro forma change of on the basis of this utility model design this utility model being made or modification are all in protection domain of the present utility model.

Claims (1)

1. transfusion flexible bag, comprise bag, fall the hole at the extension of bag tail, in real toe on the bag on the real toe of bag tail of bag one end, the bag other end relative, weld side, bag sealing surface in fact in the bag both sides and at the bag between the real toe on the real toe of bag tail and the bag with the real toe of bag tail, also comprise and be welded on the interface on the real toe one side pocket body on the bag, it is characterized in that, the described bag sealing surface and the interface branch that are used for after liquid medicine filling is finished the sealing of heat seal synchronously are arranged, to realize separating of filling liquid and transfusion or dosing.

2. transfusion flexible bag according to claim 1; it is characterized in that; interface from an end to the other end order that contacts with bag comprise the joint weld end face, every liquid film sheet, butyl rubber plug, interface protection diaphragm; and they are wholely set into described interface; described joint weld end face is used for welding with bag; describedly be used for and medicinal liquid is isolated every the liquid film sheet, described butyl rubber plug is used for sealing, and described interface protection diaphragm is used for protection and sealing.

3. transfusion flexible bag according to claim 2 is characterized in that, described bag sealing surface is arranged on the real weldering of bag side, and parallel with the real weldering of bag tail side.

4. transfusion flexible bag according to claim 2 is characterized in that, described bag sealing surface is arranged on real toe on the bag, and parallel with real toe on the bag.

5. transfusion flexible bag according to claim 2 is characterized in that, described transfusion flexible bag also comprises the retaining liquid angle that is arranged on the real toe of adjacent bag tail position.

6. transfusion flexible bag according to claim 5 is characterized in that, described bag sealing surface is arranged on hangs the side of hole away from the bag tail, and parallel with the real toe of bag tail.

7. according to each described transfusion flexible bag of claim 3-6, it is characterized in that described interface is more than one, wherein having an interface at least is the infusion port pipe.

8. transfusion flexible bag according to claim 7 is characterized in that the material that described transfusion flexible bag adopted is the PVC material, and described transfusion flexible bag is set to single chamber bag, two chambers bag, three Room bags or the chamber bag more than four.

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