CN102688533B - Self-stopping type accurate filtering transfusion apparatus capable of preventing blood return - Google Patents
Self-stopping type accurate filtering transfusion apparatus capable of preventing blood return Download PDFInfo
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- CN102688533B CN102688533B CN201210212647.1A CN201210212647A CN102688533B CN 102688533 B CN102688533 B CN 102688533B CN 201210212647 A CN201210212647 A CN 201210212647A CN 102688533 B CN102688533 B CN 102688533B
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- transfusion
- tube
- dropping funnel
- supply hole
- filter base
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- 210000004369 blood Anatomy 0.000 title abstract description 20
- 238000001914 filtration Methods 0.000 title abstract 3
- 239000007788 liquid Substances 0.000 claims abstract description 115
- 238000001802 infusion Methods 0.000 claims description 71
- 239000012530 fluid Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 description 14
- 238000000034 method Methods 0.000 description 6
- 230000002265 prevention Effects 0.000 description 5
- 206010011409 Cross infection Diseases 0.000 description 3
- 206010029803 Nosocomial infection Diseases 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 3
- 238000005213 imbibition Methods 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000023555 blood coagulation Effects 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 210000003462 vein Anatomy 0.000 description 2
- 206010001526 Air embolism Diseases 0.000 description 1
- 208000005189 Embolism Diseases 0.000 description 1
- 206010040047 Sepsis Diseases 0.000 description 1
- 206010047249 Venous thrombosis Diseases 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011982 device technology Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
- 208000001297 phlebitis Diseases 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 1
- 208000013223 septicemia Diseases 0.000 description 1
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- 230000001732 thrombotic effect Effects 0.000 description 1
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- 238000009423 ventilation Methods 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/1411—Drip chambers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/165—Filtering accessories, e.g. blood filters, filters for infusion liquids
- A61M2005/1657—Filter with membrane, e.g. membrane, flat sheet type infusion filter
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/75—General characteristics of the apparatus with filters
- A61M2205/7527—General characteristics of the apparatus with filters liquophilic, hydrophilic
Abstract
The invention discloses a self-stopping type accurate filtering transfusion apparatus capable of preventing blood return, which comprises a dropping bucket, a bottle plug puncture device and a catheter, wherein an accurate filter is arranged on a lower part of the dropping bucket; an air diaphragm, a selection transfusion device and a filter mounting base are arranged on the accurate filter; the air diaphragm is arranged at the bottom end part of the filter mounting base or at the bottom of the dropping bucket arranged under the filter mounting base; the selection transfusion device is fixed on the filter mounting base which is connected to the bottom of the dropping bucket and is communicated with an output end of the dropping bucket; a hydrophilic diaphragm is formed on the selection transfusion device; the selection transfusion device comprises a first transfusion pipe, a second transfusion pipe and a continuous liquid supply hole which are arranged on the filter mounting base; the heights of liquid inlet end surfaces of the second transfusion pipe, the first transfusion pipe and the continuous liquid supply hole are sequentially reduced; the liquid inlet end surfaces of the second transfusion pipe, the first transfusion pipe and the continuous liquid supply hole are respectively communicated with an output end of the dropping bucket; a liquid inlet surface of the continuous liquid supply hole is positioned at the bottom of the filter mounting base; a liquid inlet pipeline and an exhaustion pipeline are also arranged on the dropping bucket; and the height of the liquid outlet end is more than that of the air intake end of the exhaustion pipe. With the adoption of the self-stopping type accurate filtering transfusion apparatus capable of preventing blood return, the phenomenon of blood return can be avoided, and the apparatus is simple in structure and convenient to operate.
Description
Technical field
The present invention relates to a kind of transfusion device technology, particularly relate to a kind of automatic stop type anti-blood back infusion set with precise filter.
Background technology
In treatment clinical course, many patients often need to infuse, to pass through this treatment means treating disease of transfusion and to rescue critical patients.Thus, in clinical treatment, a large amount of use transfusion devices is needed.
In prior art, traditional transfusion device generally, after the liquid infusion-completed of transfusion bag or infusion bottle, needs nursing staff to carry out in time changing liquid or pulling out pin.As changed liquid not in time or pulling out pin, often there is the phenomenon of backflow of blood.Particularly such as because of carelessness or when having little time to change the liquid such as new medicinal liquid, air will enter the lower pipeline of transfusion device, will cause unexpected blood back phenomenon occurs.Occur that blood back situation not only can cause conduit cannot continue use due to air embolism and infuse, the serious blood coagulation formation clot that even can cause enters human body, thus human body is damaged, and there is the malpractice problem that nosocomial infection, phlebitis etc. are serious.Therefore in clinical treatment, how to solve this class problem and process adverse consequences of bringing thereof, be one always and make medical personnel and transfusion device manufacturer quite feel a thorny difficult problem.
And in the prior art, for the processing method that the problems referred to above are general, be all often concentrate on how to be wound around conduit aerofluxus fast, to pull out the methods such as transfusion needle is exhausted and process.These operations often bother very much, not only need veteran medical personnel to operate, and easily occur pulling the thunder bolt generations such as unexpected.Thus, not only waste medicinal liquid, and easily cause nosocomial infection, even if use such method to process, also be only solve the problem that can again infuse, the thrombotic risk such as venous thrombosis, other blood vessel embolisms caused for blood coagulation clot and the risk problem of the grievous injury such as nosocomial infection, septicemia, remain and cannot fundamentally solve.
At present, although market there are some anti-blood back infusion set with precise filters, it is generally the liquid infusion-completed in transfusion bag or infusion bottle, and after liquid infusion-completed in dropping funnel, liquid stops continuing to downcomer feed flow immediately, but due to the liquid barrier film that formed in air diaphragms not evenly, membrane thicknesses is also inconsistent, make thus still easily to cause blood back phenomenon to occur, also make medical personnel not have the sufficiently long time change dressings for patient or pull out pin.And filter effect is not good, when the initial feed liquor of dropping funnel, need to pinch the imbibition of pressure dropping funnel ventilation, or reversal of the natural order of things dropping funnel, thus make operation very inconvenient.
Therefore, for problems of the prior art, need provide one can effectively after automatic stop and transfusion bag or infusion bottle infusion-completed, dropping funnel liquid still can continue feed flow a period of time, and the automatic stop type blood return prevention secondary filter infusion techn that effectively can play the effect of anti-return blood, structure simple, easy to operate is very necessary to solve the deficiencies in the prior art.
Summary of the invention
The object of the invention is to avoid weak point of the prior art and provide a kind of can anti-return blood phenomenon occurs effectively, structure is simple, easy to operate automatic stop type anti-blood back infusion set with precise filter.
Object of the present invention is achieved through the following technical solutions:
A kind of automatic stop type anti-blood back infusion set with precise filter is provided, include dropping funnel, bottle plug puncture unit, conduit, wherein: described dropping funnel bottom is provided with accurate filter, described accurate filter is provided with air diaphragms, for adjusting selection infusion set and the filter base of infusion flow, described air diaphragms is arranged at described filter base bottom or is positioned at bottom the dropping funnel under filter base bottom, described selection infusion set is fixed on described filter base, described filter base to be connected to bottom described dropping funnel and to be communicated with the outfan of described dropping funnel, described selection infusion set is provided with hydrophilic diaphragm, described selection infusion set includes the first tube for transfusion, second tube for transfusion and continuous liquid supply hole, described second tube for transfusion, described first tube for transfusion, the height of the feed liquor end face in described continuous liquid supply hole reduces successively, described first tube for transfusion, described second tube for transfusion and described continuous liquid supply hole are arranged at described filter base respectively, described first tube for transfusion, described second tube for transfusion is communicated with the outfan of described dropping funnel respectively with described continuous liquid supply hole, the feed liquor face in described continuous liquid supply hole is positioned at bottom described filter base.
Wherein, described hydrophilic diaphragm is arranged at described continuous liquid supply hole lower port, and described hydrophilic diaphragm is connected through ultrasonic bonding with described filter base.
Wherein, described hydrophilic diaphragm is arranged at described continuous liquid supply hole upper port and is connected through ultrasonic bonding with described filter base, and/or described hydrophilic diaphragm is arranged at described continuous liquid supply hole runner wall and is connected through ultrasonic bonding with described filter base.
Wherein, described second tube for transfusion is provided with automatic vent groove, and described automatic vent groove is offered along described second tube for transfusion tube wall radial direction, and with the pipeline connection of the second tube for transfusion, liquid end till described automatic vent trench bottom.
Wherein, described automatic vent groove is provided with three, is uniformly distributed the tube wall being opened in described second tube for transfusion, and the upper end of corresponding described second tube for transfusion is provided with top cover, and described top cover is fixedly connected with the upper end of described second tube for transfusion.
Wherein, described second tube for transfusion lower port is provided with hydrophilic diaphragm, and described hydrophilic diaphragm is connected through ultrasonic bonding with described second tube for transfusion lower port or described filter base.
Wherein, described first tube for transfusion lower port is provided with hydrophilic diaphragm, described hydrophilic diaphragm is connected through ultrasonic bonding with described first tube for transfusion lower port or described filter base, or described first tube for transfusion upper port is connected with hydrophilic diaphragm through ultrasonic bonding, or described first tube for transfusion runner wall is connected with hydrophilic diaphragm through ultrasonic bonding.
Wherein, described air diaphragms is arranged at described filter base bottom, and described air diaphragms is connected through ultrasonic bonding with described filter base bottom.
Wherein, described dropping funnel is provided with input duct and discharge duct, described input duct passes described dropping funnel top from inside to outside and is communicated with described bottle plug puncture unit, described discharge duct passes described dropping funnel top from inside to outside and is communicated with exhaust port, and the height of the fluid port of described input duct is higher than the height of the air inlet port of described discharge duct.
Wherein, described dropping funnel top is provided with end cap, described end cap is connected with described dropping funnel top seal, and described input duct passes described end cap from inside to outside and is communicated with described bottle plug puncture unit, and described discharge duct passes described end cap from inside to outside and is communicated with described exhaust port.
In actual use, can be provided with upper conduit between described bottle plug puncture unit and described dropping funnel, described bottle plug puncture unit, upper conduit, input duct connect conducting successively.
Beneficial effect of the present invention:
Due to automatic stop type anti-blood back infusion set with precise filter of the present invention, include dropping funnel, bottle plug puncture unit, conduit, wherein: dropping funnel bottom is provided with accurate filter, accurate filter is provided with air diaphragms, for adjusting selection infusion set and the filter base of infusion flow, air diaphragms is arranged at described filter base bottom or is positioned at bottom the dropping funnel under filter base bottom, infusion set is selected to be fixed on filter base, filter base is connected to dropping funnel bottom and is communicated with the outfan of dropping funnel, infusion set is selected to be provided with hydrophilic diaphragm, infusion set is selected to include the first tube for transfusion, second tube for transfusion and continuous liquid supply hole, second tube for transfusion, first tube for transfusion, the height of the feed liquor end face in continuous liquid supply hole reduces successively, first tube for transfusion, second tube for transfusion and continuous liquid supply hole are arranged at filter base respectively, first tube for transfusion, second tube for transfusion is communicated with the outfan of dropping funnel respectively with continuous liquid supply hole, the feed liquor face in continuous liquid supply hole is positioned at bottom filter base.Thus, make under the prerequisite guaranteeing high efficiency filter, after the liquid infusion-completed of transfusion bag or infusion bottle enters and stops drop-wise state, liquid in dropping funnel still can be infused lentamente in classification, simultaneously due to liquid and the tension force of gas and the effect of air diaphragms, effectively prevent air to enter downcomer, and liquid can only be made to pass through and enter downcomer, thus really realize the generation of automatic stop and the existing picture of anti-return blood effectively, and structure is simple, easy to operate.
And, due to automatic stop type anti-blood back infusion set with precise filter of the present invention, dropping funnel is provided with input duct and discharge duct, input duct passes dropping funnel top from inside to outside and is communicated with described bottle plug puncture unit, discharge duct passes dropping funnel top from inside to outside and is communicated with exhaust port, and the height of the fluid port of input duct is higher than the height of the air inlet port of discharge duct.Thus, make one high and one low input duct and discharge duct can form the Balance Air pressure chamber of a sealing in dropping funnel, to facilitate a speed of observing input duct, there will not be to cause because air is completely drained the liquid level of liquid high to or exceed inlet and do not observe and drip speed, dropping funnel also need not be exhausted imbibition by pinching pressure again, reversal of the natural order of things dropping funnel depletion is not needed to drip speed to observe yet, only bottle plug puncture unit need be inserted transfusion bag or infusion bottle, can automatically complete aerofluxus feed liquor, make it operation more convenient.
Accompanying drawing explanation
The invention will be further described to utilize accompanying drawing, but the embodiment in accompanying drawing does not form any limitation of the invention.
Fig. 1 is the structural representation of a kind of automatic stop type anti-blood back infusion set with precise filter of the present invention.
Fig. 2 is the structural representation of the accurate filter of a kind of automatic stop type anti-blood back infusion set with precise filter of the present invention.
Fig. 3 is the structural representation at another visual angle of the accurate filter of a kind of automatic stop type anti-blood back infusion set with precise filter of the present invention.
Fig. 4 is the structural representation of the embodiment 6 of a kind of automatic stop type anti-blood back infusion set with precise filter of the present invention.
Fig. 5 is the structural representation of the embodiment 2 of a kind of automatic stop type anti-blood back infusion set with precise filter of the present invention.
Include in Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5:
1---dropping funnel, 2---upper conduit, 3---input duct, 4---discharge duct,
5---exhaust port, 6---top cover, 7---first tube for transfusion, 8---filter base,
9---automatic vent groove, 10---second tube for transfusion, 11---continuous liquid supply hole,
12---air diaphragms, 13---hydrophilic diaphragm, 14---end cap, 15---bottle plug puncture unit,
16---downcomer.
Detailed description of the invention
With the following Examples the present invention is described in further detail.
embodiment 1
Automatic stop type anti-blood back infusion set with precise filter of the present invention, as Fig. 1, Fig. 2, shown in Fig. 3 and Fig. 4, comprise dropping funnel 1, bottle plug puncture unit 15, upper conduit 2 and downcomer 16, wherein: dropping funnel 1 bottom is provided with accurate filter, accurate filter is provided with air diaphragms 12, for adjusting selection infusion set and the filter base 8 of infusion flow, air diaphragms 12 is arranged at described filter base bottom or is positioned at bottom the dropping funnel under filter base bottom, infusion set is selected to be fixed on filter base 8, filter base is connected to dropping funnel 1 bottom and is communicated with the outfan of dropping funnel 1, infusion set is selected to be provided with hydrophilic diaphragm 13, infusion set is selected to include the first tube for transfusion 7, second tube for transfusion 10 and continuous liquid supply hole 11, second tube for transfusion 10, first tube for transfusion 7, the height of the feed liquor end face in continuous liquid supply hole 11 reduces successively, first tube for transfusion 7, second tube for transfusion 10 and continuous liquid supply hole 11 are arranged at filter base 8 respectively, first tube for transfusion 7, second tube for transfusion 10 is communicated with the outfan of dropping funnel 1 respectively with continuous liquid supply hole 11, the feed liquor face in continuous liquid supply hole 11 is positioned at bottom filter base 8.
Said structure can under the prerequisite guaranteeing high efficiency filter, after the liquid infusion-completed of transfusion bag or infusion bottle enters and stops drop-wise state, liquid in dropping funnel still can be infused lentamente in classification, simultaneously due to liquid and the tension force of gas and the effect of air diaphragms, air is effectively prevented to enter downcomer, and liquid can only be made to pass through and enter downcomer, thus really realize the generation of automatic stop and the existing picture of anti-return blood effectively, and structure is simple, easy to operate.
The object of continuous liquid supply hole and hydrophilic diaphragm combinative structure is particularly set, to make liquid permeate to hydrophilic diaphragm lentamente by the continuous liquid supply hole of microcellular structure, reach and continue to permeate feed flow lentamente, instead of stop feed flow immediately, air diaphragms is enable to form the liquid barrier film of uniformity gradually, after infiltration feed flow, the air inlet of liquid barrier film open-work can not be caused, reach blood return prevention function truly.
Concrete, hydrophilic diaphragm 13 can be arranged at continuous liquid supply hole 11 lower port, and hydrophilic diaphragm 13 is connected through ultrasonic bonding with filter base 8.
Above-mentioned hydrophilic diaphragm 13 also can be arranged at continuous liquid supply hole 11 upper port and be connected through ultrasonic bonding with filter base 8;
Or above-mentioned hydrophilic diaphragm 13 can also be arranged at continuous liquid supply hole 11 runner wall and be connected through ultrasonic bonding with filter base.
And, can also arrange in continuous liquid supply hole 11 lower port, runner wall, upper port combination of two.
Hydrophilic diaphragm is the one of ultrafilter membrane, can at very little filtered under pressure medicinal liquid.When liquid level is lower than the first tube for transfusion, the slow feed flow in continuous liquid supply hole, liquid in continuous liquid supply hole is through the slow sepage of hydrophilic diaphragm, flow velocity is lower, due to the tension force effect of liquid and gas, effectively prevent air to enter dropping funnel outfan by accurate filter, really play the effect of blood return prevention.
Due to above structure, automatic vent, automatic stop liquid can be realized, continue slow feed flow, blood return prevention function.This structure can make air automatically stop entering the outfan of dropping funnel after transfusion, after liquid in the liquid and dropping funnel of transfusion bag or infusion bottle is totally lost, select infusion set can continue slow feed fluid, and feed flow a period of time can be continued, after slow feed flow completes, the just complete stopping infusion of meeting, and now air is not by selecting infusion set.Meanwhile, this selection infusion set also has automatic ventilating function during initial feed liquor before transfusion, can provide the longer supervision time, avoid malpractice to produce to medical personnel.
Concrete, the second tube for transfusion 10 is provided with automatic vent groove 9, and automatic vent groove 9 is offered along the second tube for transfusion 10 tube wall radial direction, and with the pipeline connection of the second tube for transfusion 10, liquid end till bottom automatic vent groove 9.Make the second tube for transfusion when feed liquor thus, air is discharged rapidly by automatic vent groove side direction, avoids aerofluxus to form drag effects to feed liquor and drips speed or cause bubble to block.
Concrete, automatic vent groove 9 is provided with three, is uniformly distributed the tube wall being opened in the second tube for transfusion 10, and the upper end of corresponding second tube for transfusion is provided with top cover, and top cover is fixedly connected with the upper end of the second tube for transfusion.Make the second tube for transfusion when feed liquor thus, air is discharged rapidly by equally distributed three automatic vent groove side direction dispersion, more effectively avoids aerofluxus to form drag effects to feed liquor dripping speed or cause bubble to block, and exhaust effect is better; The setting of top cover simultaneously both can strengthen the rigidity that the second tube for transfusion offers automatic vent groove location, and feed liquor and directly liquidating when causing liquid to enter the second tube for transfusion of gas also can be avoided to produce bubble.
And the second tube for transfusion 10 tube wall also can set more than three equally distributed automatic vent grooves 9, as four, five or six etc.
In addition, the bottom of multiple automatic vent groove 9 can also be arranged from height to low classification respectively, forms the only liquid end of classification.
In selection infusion set, what feed liquor end face was the highest is the second tube for transfusion, and when the minimum only liquid end of the liquid level in dropping funnel higher than the second tube for transfusion, infuse in the first tube for transfusion, the second tube for transfusion and continuous liquid supply hole simultaneously, to guarantee the flow velocity of infusion flow; When liquid level is lower than the minimum only liquid end of the second tube for transfusion and higher than the first tube for transfusion liquid feeding end, infuse in the first tube for transfusion and continuous liquid supply hole simultaneously more slowly; When liquid level is lower than the first tube for transfusion liquid feeding end, the slow feed flow in continuous liquid supply hole.
Above second tube for transfusion 10 lower port can also be provided with hydrophilic diaphragm 13, and hydrophilic diaphragm 13 can be connected through ultrasonic bonding with the second tube for transfusion lower port or filter base.
Concrete, dropping funnel 1 is provided with input duct 3 and discharge duct 4, input duct 3 passes dropping funnel 1 top from inside to outside and is communicated with bottle plug puncture unit 15, discharge duct 4 passes dropping funnel 1 top from inside to outside and is communicated with exhaust port 5, and the height of the fluid port of input duct 3 is higher than the height of the air inlet port of discharge duct 4.The function of the automatic exhausting equipment at this dropping funnel 1 top can make rear just can directly the changing dressings of transfusion infuse again, again need not pinch pressure dropping funnel 1 and can complete transfusion.
Thus, make one high and one low input duct and discharge duct can form the Balance Air pressure chamber of a sealing in dropping funnel, to facilitate a speed of observing input duct, there will not be to cause because air is completely drained the liquid level of liquid high to or exceed inlet and do not observe and drip speed, dropping funnel also need not be exhausted imbibition by pinching pressure again, reversal of the natural order of things dropping funnel depletion is not needed to drip speed to observe yet, only bottle plug puncture unit need be inserted transfusion bag or infusion bottle, can automatically complete aerofluxus feed liquor, make it operation more convenient.
embodiment 2
The embodiment 2 of automatic stop type anti-blood back infusion set with precise filter of the present invention, as shown in Figure 5, embodiment 2 is with the difference of embodiment 1: dropping funnel 1 top is provided with end cap 14, end cap 14 is connected with dropping funnel 1 top seal, input duct 3 passes end cap 14 from inside to outside and is communicated with bottle plug puncture unit 15, and discharge duct 4 passes end cap 14 from inside to outside and is communicated with exhaust port 5.Make manufacture, install more easy.
embodiment 3
The embodiment 3 of automatic stop type anti-blood back infusion set with precise filter of the present invention, as shown in Figure 1 and Figure 2, embodiment 3 is with the difference of embodiment 1, embodiment 2: air diaphragms 12 can be arranged at filter base 8 bottom, and air diaphragms 12 can be connected through ultrasonic bonding with filter base 8 bottom.Air diaphragms plays the effect automatically stopping feed flow, when the liquid in dropping funnel flows out completely, under the wetness conditions of liquid, the tension force of liquid and gas and the effect of air diaphragms, make air diaphragms surface produce protecting film, prevent air to enter, thus reach automatic stop liquid and prevent from dripping the effect of wearing, fundamentally avoid blood back phenomenon, and air diaphragms can filter out the impurity in medicinal liquid.
Can also be provided with upper conduit 2 between above-mentioned bottle plug puncture unit 15 and dropping funnel 1, bottle plug puncture unit 15, upper conduit 2, input duct 3 are communicated with successively.
embodiment 4
The embodiment 4 of automatic stop type anti-blood back infusion set with precise filter of the present invention, embodiment 4 is with the difference of embodiment 1, embodiment 2, embodiment 3: the second tube for transfusion 10 lower port can be provided with hydrophilic diaphragm 13, and hydrophilic diaphragm 13 can be connected through ultrasonic bonding with the second tube for transfusion 10 lower port.
Or hydrophilic diaphragm 13 can also connect through ultrasonic bonding by the second tube for transfusion 10 lower port seat corresponding to filter base 8.
embodiment 5
The embodiment 5 of automatic stop type anti-blood back infusion set with precise filter of the present invention, embodiment 5 is with the difference of embodiment 1, embodiment 2, embodiment 3, embodiment 4: the first tube for transfusion 7 lower port can be provided with hydrophilic diaphragm 13, and hydrophilic diaphragm 13 can be connected through ultrasonic bonding with the first tube for transfusion 7 lower port.
Or hydrophilic diaphragm 13 can also connect through ultrasonic bonding by the first tube for transfusion 7 lower port seat corresponding to filter base 8.
Or the first tube for transfusion 7 upper port can be connected with hydrophilic diaphragm 13 through ultrasonic bonding.
Or the first tube for transfusion 7 runner wall can also be connected with hydrophilic diaphragm 13 through ultrasonic bonding.
embodiment 6
The embodiment 6 of automatic stop type anti-blood back infusion set with precise filter of the present invention, as shown in Figure 4, embodiment 6 is with the difference of embodiment 1, embodiment 2, embodiment 3, embodiment 4, embodiment 5: air diaphragms 12 can be arranged at bottom the dropping funnel 1 under filter base 8 bottom, and air diaphragms 12 is connected through ultrasonic bonding with dropping funnel 1 bottom interior wall.
Air diaphragms can be arranged at bottom the filter base of accurate filter, also can be arranged at the bottom of the dropping funnel under corresponding filter base bottom, and be connected by ultrasonic bonding.Air diaphragms is when moistening, and can play and intercept the effect that air enters downcomer, thus prevent air from entering human body, be namely totally lost when medicinal liquid can stop automatically, reaches the object of automatic stop.Air diaphragms also has the function of secondary filter simultaneously, and the lasting effect playing slow feed flow for fluid apertures arranged, continuing slow feed flow can reach more than 30 minutes, instead of stops feed flow immediately, plays blood return prevention function truly.
Operation principle of the present invention:
First bottle plug puncture unit is directly inserted the socket of transfusion bag or infusion bottle, flow regulator is placed in closed position, then puncture venoclysis needle the vein blood vessel of patient, again flow regulator is adjusted to required transfusion speed, the liquid input dropping funnel of transfusion bag or infusion bottle, enter transfusion needle tubule from dropping funnel by downcomer again, and then input to the vein blood vessel of patient through venoclysis needle.
Infusion set is selected can automatically to select adjustment infusion flow and flow velocity according to amount of liquid in dropping funnel.When also having liquid in transfusion bag or infusion bottle, can constantly have liquid to supplement in dropping funnel, therefore, in dropping funnel, liquid level can be positioned at a higher position, selects infusion set by with required normal infusion rate infusion, namely with larger flow output liquid.After the liquid in transfusion bag or infusion bottle is totally lost, in dropping funnel, remaining liquid can reduce gradually along with the discharge of liquid, liquid level in dropping funnel also can reduce gradually, after being reduced to certain altitude, select infusion set will enter to slow transfusion, namely with very little flow output liquid by normal infusion, more slowly transfusion.And after the medicinal liquid in dropping funnel slowly exports a period of time, select infusion set to stop medicinal liquid exporting.To the output of stopping medicinal liquid from slowly infusing, lasting nearly 30 minutes of large appointment.Simultaneously due to liquid and the tension force of gas and the effect of air diaphragms, effectively prevent air to enter downcomer, and liquid can only be made to pass through and enter downcomer.Make medical personnel easily to process thus, avoid the blood back phenomenon that transfusion device of the prior art causes.And, even if slowly transfusion exporting to stopping medicinal liquid, also can effectively stop air to enter downcomer, thus fundamentally can solve the generation of blood back phenomenon.
Finally should be noted that; above embodiment is only in order to illustrate technical scheme of the present invention but not limiting the scope of the invention; although be explained in detail the present invention with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify to technical scheme of the present invention or equivalent replacement, and not depart from essence and the scope of technical solution of the present invention.
Claims (6)
1. automatic stop type anti-blood back infusion set with precise filter, include dropping funnel, bottle plug puncture unit, conduit, it is characterized in that: described dropping funnel bottom is provided with accurate filter, described accurate filter is provided with air diaphragms, for adjusting selection infusion set and the filter base of infusion flow, described air diaphragms is arranged at described filter base bottom or is positioned at bottom the dropping funnel under filter base bottom, described selection infusion set is fixed on described filter base, described filter base to be connected to bottom described dropping funnel and to be communicated with the outfan of described dropping funnel, described selection infusion set is provided with hydrophilic diaphragm, described selection infusion set includes the first tube for transfusion, second tube for transfusion and continuous liquid supply hole, described second tube for transfusion, described first tube for transfusion, the height of the feed liquor end face in described continuous liquid supply hole reduces successively, described first tube for transfusion, described second tube for transfusion and described continuous liquid supply hole are arranged at described filter base respectively, described first tube for transfusion, described second tube for transfusion is communicated with the outfan of described dropping funnel respectively with described continuous liquid supply hole, the feed liquor face in described continuous liquid supply hole is positioned at bottom described filter base,
Described second tube for transfusion is provided with automatic vent groove, and described automatic vent groove is offered along described second tube for transfusion tube wall radial direction, and with the pipeline connection of the second tube for transfusion, liquid end till described automatic vent trench bottom,
Described automatic vent groove is uniformly distributed the tube wall being opened in described second tube for transfusion, and the upper end of corresponding described second tube for transfusion is provided with top cover, and described top cover is fixedly connected with the upper end of described second tube for transfusion;
Described dropping funnel is provided with input duct and discharge duct, described input duct passes described dropping funnel top from inside to outside and is communicated with described bottle plug puncture unit, described discharge duct passes described dropping funnel top from inside to outside and is communicated with exhaust port, and the height of the fluid port of described input duct is higher than the height of the air inlet port of described discharge duct;
Described hydrophilic diaphragm is arranged at described continuous liquid supply hole lower port, and described hydrophilic diaphragm is connected through ultrasonic bonding with described filter base; Or
Described hydrophilic diaphragm is arranged at described continuous liquid supply hole upper port and is connected through ultrasonic bonding with described filter base, and/or described hydrophilic diaphragm is arranged at described continuous liquid supply hole runner wall and is connected through ultrasonic bonding with described filter base.
2. automatic stop type anti-blood back infusion set with precise filter according to claim 1, is characterized in that: described automatic vent groove is provided with three.
3. automatic stop type anti-blood back infusion set with precise filter according to claim 1, it is characterized in that: described second tube for transfusion lower port is provided with hydrophilic diaphragm, and described hydrophilic diaphragm is connected through ultrasonic bonding with described second tube for transfusion lower port or described filter base.
4. automatic stop type anti-blood back infusion set with precise filter according to claim 1, it is characterized in that: described first tube for transfusion lower port is provided with hydrophilic diaphragm, described hydrophilic diaphragm is connected through ultrasonic bonding with described first tube for transfusion lower port or described filter base, or described first tube for transfusion upper port is connected with hydrophilic diaphragm through ultrasonic bonding, or described first tube for transfusion runner wall is connected with hydrophilic diaphragm through ultrasonic bonding.
5. automatic stop type anti-blood back infusion set with precise filter according to claim 1, is characterized in that: described air diaphragms is arranged at described filter base bottom, and described air diaphragms is connected through ultrasonic bonding with described filter base bottom.
6. the automatic stop type anti-blood back infusion set with precise filter according to claim 1-5 any one, it is characterized in that: described dropping funnel top is provided with end cap, described end cap is connected with described dropping funnel top seal, described input duct passes described end cap from inside to outside and is communicated with described bottle plug puncture unit, and described discharge duct passes described end cap from inside to outside and is communicated with described exhaust port.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210212647.1A CN102688533B (en) | 2012-06-26 | 2012-06-26 | Self-stopping type accurate filtering transfusion apparatus capable of preventing blood return |
| PCT/CN2013/074054 WO2014000494A1 (en) | 2012-06-26 | 2013-04-11 | Self-stopping type precision filter infusion apparatus capable of preventing blood return |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210212647.1A CN102688533B (en) | 2012-06-26 | 2012-06-26 | Self-stopping type accurate filtering transfusion apparatus capable of preventing blood return |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102688533A CN102688533A (en) | 2012-09-26 |
| CN102688533B true CN102688533B (en) | 2015-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210212647.1A Expired - Fee Related CN102688533B (en) | 2012-06-26 | 2012-06-26 | Self-stopping type accurate filtering transfusion apparatus capable of preventing blood return |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102688533B (en) |
| WO (1) | WO2014000494A1 (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102688533B (en) * | 2012-06-26 | 2015-04-29 | 电白县康尔美生物科技有限公司 | Self-stopping type accurate filtering transfusion apparatus capable of preventing blood return |
| CN102935252A (en) * | 2012-11-30 | 2013-02-20 | 广东康尔美医疗器械有限公司 | Balloon type automatic infusion device |
| CN103341223B (en) * | 2013-06-25 | 2015-07-15 | 张甜生 | Disposable automatic control transfusion device |
| CN104857590A (en) * | 2015-06-03 | 2015-08-26 | 戎静华 | Anticoagulant liquid stop infusion apparatus with flow changing switch |
| CN105479733A (en) * | 2015-12-31 | 2016-04-13 | 山东中保康医疗器具有限公司 | Torque welding method of precise medicine liquid filter liquid-phase film |
| CN106563185A (en) * | 2016-07-08 | 2017-04-19 | 蔡根顺 | Precision type intelligent dripping bucket with automatic drainage and liquid storage functions, and liquid storage floating body |
| CN107970499B (en) * | 2016-10-21 | 2023-11-21 | 上海康德莱企业发展集团股份有限公司 | Eccentric self-exhausting transfusion system |
| DE102017205188A1 (en) * | 2017-03-28 | 2018-10-04 | B. Braun Melsungen Ag | Safety device for securing an infusion device |
| US11766525B2 (en) | 2017-05-19 | 2023-09-26 | Porex Corporation | Infusion device with a hydrophilic sintered porous plastic or hydrophilic porous fiber air stop filter |
| CN107096088B (en) * | 2017-06-15 | 2023-04-18 | 莱芜钢铁集团有限公司 | Infusion apparatus and Murphy's dropper thereof |
| CN108525065A (en) * | 2018-05-11 | 2018-09-14 | 中国人民解放军第四军医大学 | A kind of accurate safe blood transfusion apparatus |
| CN114055794A (en) * | 2021-11-18 | 2022-02-18 | 南昌铭鸿自动化设备有限公司 | Automatic assembly production line for intelligent film dripping hoppers |
| CN114247006B (en) * | 2022-01-20 | 2024-02-20 | 上海协贮智能科技服务有限公司 | Infusion apparatus capable of automatically stopping liquid and preventing blood return |
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| CN101985054A (en) * | 2010-12-15 | 2011-03-16 | 广东康尔美医疗器械有限公司 | Anti-blood backflow precision filtering infusion set |
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| CN102688533A (en) | 2012-09-26 |
| WO2014000494A1 (en) | 2014-01-03 |
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