CN202654497U - Automatic-stop blood-return resistant precise filter transfusion apparatus - Google Patents
Automatic-stop blood-return resistant precise filter transfusion apparatus Download PDFInfo
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- CN202654497U CN202654497U CN 201220301487 CN201220301487U CN202654497U CN 202654497 U CN202654497 U CN 202654497U CN 201220301487 CN201220301487 CN 201220301487 CN 201220301487 U CN201220301487 U CN 201220301487U CN 202654497 U CN202654497 U CN 202654497U
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Abstract
An automatic-stop blood-return resistant precise filter transfusion apparatus comprises a dripping bucket, a cork perforator and catheters. A precise filter is arranged on the lower portion of the dripping bucket and provided with air diaphragm, a transfusion selection unit and a filter mounting seat. The air diaphragm is arranged at the bottom end of the filter mounting seat or the bottom of the dripping bucket below the filter mounting seat. The transfusion selection unit is fixed on the filter mounting seat which is connected to the bottom of the dripping bucket and communicated with an output end of the dripping bucket, and the transfusion selection unit is provided with a hydrophilic membrane and comprises a first transfusion tube, a second transfusion tube and a continuous liquid feed hole which are arranged on the filter mounting seat respectively. The first transfusion tube, the second transfusion tube and the continuous liquid feed hole with liquid feed surfaces decreased successively are communicated with the output end of the dripping bucket respectively, and a liquid feed surface of the continuous liquid feed hole is placed at the bottom of the filter seat. The dripping bucket is further provided with a liquid feed tube and an air exhaust tube, and the height of a liquid discharge end opening is larger than that of an air feed end opening of the air exhaust tube. By means of the automatic-stop blood-return resistant precise filter transfusion apparatus, the blood-return phenomenon can be effectively prevented, the structure is simple, and the operation is convenient.
Description
Technical field
This utility model relates to a kind of transfusion device technology, particularly relates 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.Thereby, in clinical treatment, need a large amount of use transfusion devices.
In the prior art, traditional transfusion device needs the nursing staff in time to change liquid or pulls out pin generally behind the liquid infusion-completed of transfusion bag or infusion bottle.Change liquid or pull out pin as untimely, tend to occur 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 occuring unexpected blood back phenomenon.The blood back situation occurring not only can cause conduit can't continue owing to air embolism to use to infuse, serious even can cause blood coagulation to form clot to enter human body, thereby human body is damaged, and the serious malpractice problem of nosocomial infection, phlebitis etc. occurs.Therefore in clinical treatment, how to solve this class problem and process the adverse consequences of bringing, be one always and make medical personnel and transfusion device manufacturer quite feel a thorny difficult problem.
And in the prior art, for the general processing method of the problems referred to above, often all be to concentrate on to twine how fast the conduit aerofluxus, pull out transfusion needle and carry out the methods such as aerofluxus and process.These operations often bother very much, not only need veteran medical personnel to operate, and the thunder bolt generations such as unexpected easily occur pulling.Thus, not only waste medicinal liquid, and easily cause nosocomial infection, even using such method processes, also only be to have solved the problem that again to infuse, the risk problem of the grievous injuries such as the thrombosis risks such as the venous thrombosis that causes for the blood coagulation clot, other blood vessel embolisms and nosocomial infection, septicemia remains and can't fundamentally solve.
At present, although occurred some anti-blood back infusion set with precise filters on the market, it generally is the liquid infusion-completed at transfusion bag or infusion bottle, and behind the liquid infusion-completed in the dropping funnel, liquid stops to continue to the downcomer feed flow immediately, but because even not at the liquid barrier film of air diaphragms formation, membrane thicknesses is also inconsistent, thus so that still easily cause the blood back phenomenon and occur, also make medical personnel not have the sufficiently long time to change dressings for the patient or pull out pin.And filter effect is not good, when the initial feed liquor of dropping funnel, need to pinch and press the dropping funnel ventilation imbibition, perhaps hangs upside down dropping funnel, thereby so that operation is very inconvenient.
Therefore, for problems of the prior art, after a kind of effectively automatic stop and transfusion bag or infusion bottle infusion-completed need be provided, dropping funnel liquid still can continue feed flow a period of time, can effectively play the effect of anti-return blood, simple in structure, easy to operate automatic stop type blood return prevention secondary filter infusion techn is very necessary to solve the deficiencies in the prior art.
Summary of the invention
The purpose of this utility model is to avoid weak point of the prior art and provides a kind of and can prevent effectively that the return blood phenomenon occurs, simple in structure, easy to operate automatic stop type anti-blood back infusion set with precise filter.
The purpose of this utility model 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, be used for adjusting selection infusion set and the filter mount pad of infusion flow, described air diaphragms is arranged at described filter mount pad bottom or is positioned at dropping funnel bottom under the filter mount pad bottom, described selection infusion set is fixed in described filter mount pad, described filter mount pad is connected in described dropping funnel bottom and is 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, the second tube for transfusion and continuous liquid supply hole, described the second tube for transfusion, described the first tube for transfusion, the height of the feed liquor end face in described continuous liquid supply hole reduces successively, described the first tube for transfusion, described the second tube for transfusion and described continuous liquid supply hole are arranged at respectively described filter mount pad, described the first tube for transfusion, described the second tube for transfusion and described continuous liquid supply hole are communicated with the outfan of described dropping funnel respectively, and the feed liquor face in described continuous liquid supply hole is positioned at described filter mount pad bottom.
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 mount pad.
Wherein, described hydrophilic diaphragm is arranged at described continuous liquid supply hole upper port and is connected through ultrasonic bonding with described filter mount pad, and/or described hydrophilic diaphragm is arranged at described continuous liquid supply orifice flow road wall and is connected through ultrasonic bonding with described filter mount pad.
Wherein, described the second tube for transfusion is provided with the automatic vent groove, and described automatic vent groove is radially offered along described the second tube for transfusion tube wall, and with the pipeline connection of the second tube for transfusion, liquid end till the described automatic vent trench bottom.
Wherein, described automatic vent groove is provided with three, evenly is distributed the tube wall of being located at described the second tube for transfusion, and the upper end of corresponding described the second tube for transfusion is provided with top cover, and described top cover is fixedly connected with the upper end of described the second tube for transfusion.
Wherein, described the second tube for transfusion lower port is provided with hydrophilic diaphragm, and described hydrophilic diaphragm is connected through ultrasonic bonding with described the second tube for transfusion lower port or described filter mount pad.
Wherein, described the first tube for transfusion lower port is provided with hydrophilic diaphragm, described hydrophilic diaphragm is connected through ultrasonic bonding with described the first tube for transfusion lower port or described filter mount pad, perhaps described the first tube for transfusion upper port is connected with hydrophilic diaphragm through ultrasonic bonding, and perhaps described the first tube for transfusion runner wall is connected with hydrophilic diaphragm through ultrasonic bonding.
Wherein, described air diaphragms is arranged at described filter mount pad bottom, and described air diaphragms is connected through ultrasonic bonding with described filter mount pad bottom.
Wherein, described dropping funnel is provided with input duct and discharge duct, described input duct passes from inside to outside described dropping funnel top and is communicated with described bottle plug puncture unit, described discharge duct passes from inside to outside described dropping funnel top 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 from inside to outside described end cap and is communicated with described bottle plug puncture unit, and described discharge duct passes from inside to outside described end cap and is communicated with described exhaust port.
In actual the use, can be provided with upper conduit between described bottle plug puncture unit and the described dropping funnel, described bottle plug puncture unit, upper conduit, input duct connect conducting successively.
The beneficial effects of the utility model:
Because automatic stop type anti-blood back infusion set with precise filter of the present utility model, include dropping funnel, bottle plug puncture unit, conduit, wherein: the dropping funnel bottom is provided with accurate filter, accurate filter is provided with air diaphragms, be used for adjusting selection infusion set and the filter mount pad of infusion flow, air diaphragms is arranged at described filter mount pad bottom or is positioned at dropping funnel bottom under the filter mount pad bottom, select infusion set to be fixed in the filter mount pad, the filter mount pad is connected in the dropping funnel bottom and is communicated with the outfan of dropping funnel, select infusion set to be provided with hydrophilic diaphragm, select infusion set to include the first tube for transfusion, the second tube for transfusion and continuous liquid supply hole, the second tube for transfusion, the first tube for transfusion, the height of the feed liquor end face in continuous liquid supply hole reduces successively, the first tube for transfusion, the second tube for transfusion and continuous liquid supply hole are arranged at respectively the filter mount pad, the first tube for transfusion, the second tube for transfusion and continuous liquid supply hole are communicated with the outfan of dropping funnel respectively, and the feed liquor face in continuous liquid supply hole is positioned at filter mount pad bottom.Thus, so that guaranteeing under the prerequisite of high efficiency filter, when the liquid infusion-completed of transfusion bag or infusion bottle enter stop the state that drips after, liquid in the dropping funnel still can be infused lentamente in classification, simultaneously because liquid and the tension force of gas and the effect of air diaphragms have stoped air to enter downcomer effectively, and can only make liquid by and enter downcomer, thereby really realize automatic stop and the effectively anti-now generation of picture of return blood, and simple in structure, easy to operate.
And, because automatic stop type anti-blood back infusion set with precise filter of the present utility model, be provided with input duct and discharge duct at dropping funnel, input duct passes from inside to outside the dropping funnel top and is communicated with described bottle plug puncture unit, discharge duct passes from inside to outside the dropping funnel top 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, so that one high and one low input duct and discharge duct can form the equilibrium air pressure chamber of a sealing in dropping funnel, with the convenient speed of dripping of observing input duct, can not occur causing because air is fully drained the liquid level of liquid high to or surpass inlet and do not observe and drip speed, dropping funnel also need not be compressed into capable aerofluxus imbibition by pinching again, do not need to hang upside down the dropping funnel depletion yet and drip speed to observe, only need bottle plug puncture unit is inserted transfusion bag or infusion bottle, can automatically finish the aerofluxus feed liquor, make it to operate more convenient.
Description of drawings
The utility model is described in further detail to utilize accompanying drawing, but the embodiment in the accompanying drawing does not consist of any restriction of the present utility model.
Fig. 1 is the structural representation of a kind of automatic stop type anti-blood back infusion set with precise filter of the present utility model.
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 utility model.
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 utility model.
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 utility model.
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 utility model.
In Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, include:
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 mount pad,
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.
The specific embodiment
With the following Examples this utility model is described in further detail.
Embodiment 1
Automatic stop type anti-blood back infusion set with precise filter of the present utility model, such as Fig. 1, Fig. 2, Fig. 3 and shown in Figure 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, be used for adjusting selection infusion set and the filter mount pad 8 of infusion flow, air diaphragms 12 is arranged at described filter mount pad bottom or is positioned at dropping funnel bottom under the filter mount pad bottom, select infusion set to be fixed in filter mount pad 8, the filter mount pad is connected in dropping funnel 1 bottom and is communicated with the outfan of dropping funnel 1, select infusion set to be provided with hydrophilic diaphragm 13, select infusion set to include the first tube for transfusion 7, the second tube for transfusion 10 and continuous liquid supply hole 11, the second tube for transfusion 10, the first tube for transfusion 7, the height of the feed liquor end face in continuous liquid supply hole 11 reduces successively, the first tube for transfusion 7, the second tube for transfusion 10 and continuous liquid supply hole 11 are arranged at respectively filter mount pad 8, the first tube for transfusion 7, the second tube for transfusion 10 and continuous liquid supply hole 11 are communicated with the outfan of dropping funnel 1 respectively, and the feed liquor face in continuous liquid supply hole 11 is positioned at filter mount pad 8 bottoms.
Said structure can guaranteed under the prerequisite of high efficiency filter, when the liquid infusion-completed of transfusion bag or infusion bottle enter stop the state that drips after, liquid in the dropping funnel still can be infused lentamente in classification, simultaneously because liquid and the tension force of gas and the effect of air diaphragms, effectively stoped air to enter downcomer, and can only make liquid by and enter downcomer, thereby really realize automatic stop and the effectively anti-now generation of picture of return blood, and simple in structure, easy to operate.
The purpose of continuous liquid supply hole and hydrophilic diaphragm combinative structure particularly is set, for liquid can be permeated to hydrophilic diaphragm lentamente by the continuous liquid supply hole of microcellular structure, reach and continue to permeate lentamente feed flow, rather than stop immediately feed flow, make air diaphragms can form gradually the liquid barrier film of uniformity, after the infiltration feed flow is complete, can not cause the air inlet of liquid barrier film open-work, 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 and filter mount pad 8 are connected through ultrasonic bonding.
Above-mentioned hydrophilic diaphragm 13 also can be arranged at continuous liquid supply hole 11 upper port and filter mount pad 8 and be connected through ultrasonic bonding;
Perhaps, above-mentioned hydrophilic diaphragm 13 can also be arranged at continuous liquid supply hole 11 runner walls and is connected through ultrasonic bonding with the filter mount pad.
And, can also make up in twos setting in continuous liquid supply hole 11 lower port, runner wall, upper port.
Hydrophilic diaphragm is a kind of of ultrafilter membrane, can be under very little pressure filtering liquid medicine.When liquid level is lower than the first tube for transfusion, the slow feed flow in continuous liquid supply hole, liquid in the continuous liquid supply hole is through the slow sepage of hydrophilic diaphragm, flow velocity is lower, because the tension force effect of liquid and gas, effectively stop air to enter the dropping funnel outfan by accurate filter, really played the effect of blood return prevention.
Because above structure can realize automatic vent, automatic stop liquid, continue slow feed flow, blood return prevention function.This structure can make air automatically stop to enter the outfan of dropping funnel after transfusion, after the liquid of transfusion bag or infusion bottle and the liquid in the dropping funnel are totally lost, select infusion set can continue slow feed fluid, and can continue feed flow a period of time, after slow feed flow is finished, just understand complete stopping infusion, and this moment, air can not be by selecting infusion set.Simultaneously, this selection infusion set also has automatic ventilating function during initial feed liquor before transfusion, can provide the long supervision time to medical personnel, avoids malpractice to produce.
Concrete, the second tube for transfusion 10 is provided with automatic vent groove 9, and automatic vent groove 9 is radially offered along the second tube for transfusion 10 tube walls, and with the pipeline connection of the second tube for transfusion 10, liquid end till automatic vent groove 9 bottoms.Thus so that the second tube for transfusion when feed liquor, air is discharged rapidly by automatic vent groove side direction, avoids aerofluxus that feed liquor is formed drag effects and drips speed or cause bubble to block.
Concrete, automatic vent groove 9 is provided with three, evenly is distributed the tube wall of being located at the second tube for transfusion 10, and the upper end of corresponding the 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.Thus so that the second tube for transfusion when feed liquor, air disperses to discharge rapidly by equally distributed three automatic vent groove side direction, more effectively avoids aerofluxus that feed liquor is formed drag effects dripping speed or cause bubble to block, exhaust effect is better; The simultaneously setting of top cover both can be strengthened the rigidity that the second tube for transfusion is offered the automatic vent groove location, also can avoid directly liquidating of feed liquor and gas to produce bubble when causing liquid to enter the second tube for transfusion.
And the second tube for transfusion 10 tube walls also can set equally distributed automatic vent groove 9 more than three, such as four, five or six etc.
In addition, the bottom of a plurality of automatic vent grooves 9 can also respectively from height to low classification setting, form the only liquid end of classification.
In selecting infusion set, what the feed liquor end face was the highest is the second tube for transfusion, and when the liquid level in the dropping funnel was higher than the minimum only liquid end of the second tube for transfusion, infused simultaneously in the first tube for transfusion, the second tube for transfusion and continuous liquid supply hole, to guarantee the flow velocity of infusion flow; When liquid level was lower than the minimum only liquid end of the second tube for transfusion and is higher than the first tube for transfusion liquid feeding end, the first tube for transfusion and continuous liquid supply hole be more slowly transfusion simultaneously; When liquid level is lower than the first tube for transfusion liquid feeding end, the slow feed flow in continuous liquid supply hole.
Above the 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 mount pad.
Concrete, dropping funnel 1 is provided with input duct 3 and discharge duct 4, input duct 3 passes from inside to outside dropping funnel 1 top and is communicated with bottle plug puncture unit 15, discharge duct 4 passes from inside to outside dropping funnel 1 top 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 so that just can directly change dressings again transfusion after the transfusion, need not be pinched and press dropping funnel 1 can finish transfusion again.
Thus, so that one high and one low input duct and discharge duct can form the equilibrium air pressure chamber of a sealing in dropping funnel, with the convenient speed of dripping of observing input duct, can not occur causing because air is fully drained the liquid level of liquid high to or surpass inlet and do not observe and drip speed, dropping funnel also need not be compressed into capable aerofluxus imbibition by pinching again, do not need to hang upside down the dropping funnel depletion yet and drip speed to observe, only need bottle plug puncture unit is inserted transfusion bag or infusion bottle, can automatically finish the aerofluxus feed liquor, make it to operate more convenient.
Embodiment 2
The embodiment 2 of automatic stop type anti-blood back infusion set with precise filter of the present utility model, 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 from inside to outside end cap 14 and is communicated with bottle plug puncture unit 15, and discharge duct 4 passes from inside to outside end cap 14 and is communicated with exhaust port 5.So that make, install more easy.
Embodiment 3
The embodiment 3 of automatic stop type anti-blood back infusion set with precise filter of the present utility model, 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 mount pad 8 bottoms, and air diaphragms 12 can be connected through ultrasonic bonding with filter mount pad 8 bottoms.Air diaphragms plays the effect that automatically stops feed flow, when the liquid in the dropping funnel flows out fully, under the wetness conditions of liquid, the tension force of liquid and gas and the effect of air diaphragms, make the air diaphragms surface produce protecting film, stoped air to enter, thereby reach automatic stop liquid and prevent from dripping the effect of wearing, fundamentally avoided the blood back phenomenon, and air diaphragms can filter out the impurity in the medicinal liquid.
Can also be provided with upper conduit 2 between above-mentioned bottle plug puncture unit 15 and the 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 utility model, 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.
Perhaps, hydrophilic diaphragm 13 can also connect through ultrasonic bonding with filter mount pad 8 corresponding the second tube for transfusion 10 lower port seats.
The embodiment 5 of automatic stop type anti-blood back infusion set with precise filter of the present utility model, 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.
Perhaps, hydrophilic diaphragm 13 can also connect through ultrasonic bonding with filter mount pad 8 corresponding the first tube for transfusion 7 lower port seats.
Perhaps, the first tube for transfusion 7 upper port can be connected with hydrophilic diaphragm 13 through ultrasonic bonding.
Perhaps, the first tube for transfusion 7 runner walls can also be connected with hydrophilic diaphragm 13 through ultrasonic bonding.
The embodiment 6 of automatic stop type anti-blood back infusion set with precise filter of the present utility model, 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 dropping funnel 1 bottom under filter mount pad 8 bottoms, and air diaphragms 12 is connected through ultrasonic bonding with dropping funnel 1 bottom interior wall.
Air diaphragms can be arranged at the filter mount pad bottom of accurate filter, also can be arranged at the bottom of the dropping funnel under the corresponding filter mount pad bottom, and connects by ultrasonic bonding.Air diaphragms is in the situation that moistening, can play to intercept air and enter the effect of downcomer, thereby prevent that air from entering human body, and being totally lost when medicinal liquid namely can stop automatically, reaches the purpose of automatic stop.Air diaphragms also has the function of secondary filter simultaneously, and the effect of slow feed flow is played in the lasting feed flow hole that arranges, and continues slow feed flow and can reach more than 30 minutes, rather than stop immediately feed flow, plays blood return prevention function truly.
Operation principle of the present utility model:
First bottle plug puncture unit is directly inserted the socket of transfusion bag or infusion bottle, flow regulator is placed the closed position, then patient's vein blood vessel punctures venoclysis needle, again flow regulator is adjusted to needed transfusion speed, the liquid input dropping funnel of transfusion bag or infusion bottle, enter the transfusion needle tubule from dropping funnel by downcomer again, and then input to patient's vein blood vessel through venoclysis needle.
Select infusion set automatically to select to adjust infusion flow and flow velocity according to amount of liquid in the dropping funnel.When also having liquid in transfusion bag or the infusion bottle, can constantly there be liquid to replenish in the dropping funnel, therefore, liquid level can be positioned at a higher position in the dropping funnel, selects infusion set to infuse with needed normal infusion speed, namely with larger flow output liquid.After the liquid in transfusion bag or the infusion bottle is totally lost, remaining liquid can reduce gradually along with the discharge of liquid in the dropping funnel, liquid level in the dropping funnel also can reduce gradually, after being reduced to certain altitude, select the infusion set will be by normal infusion, more slowly transfusion and enter to slow transfusion, namely with very little flow output liquid.And after the medicinal liquid in the dropping funnel is slowly exported a period of time, select infusion set to stop medicinal liquid output.Begin to stopping medicinal liquid output from slow transfusion, large appointment continues nearly 30 minutes.Simultaneously because liquid and the tension force of gas and the effect of air diaphragms have stoped air to enter downcomer effectively, and can only make liquid by and enter downcomer.Thus so that medical personnel can easily process the blood back phenomenon of having avoided transfusion device of the prior art to cause.And, even slowly transfusion also can effectively stop air to enter downcomer, thereby can fundamentally solve the generation of blood back phenomenon to stopping medicinal liquid output.
Should be noted that at last; above embodiment is only in order to the technical solution of the utility model to be described but not to the restriction of this utility model protection domain; although with reference to preferred embodiment this utility model has been done detailed description; those of ordinary skill in the art is to be understood that; can make amendment or be equal to replacement the technical solution of the utility model, and not break away from essence and the scope of technical solutions of the utility model.
Claims (10)
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, be used for adjusting selection infusion set and the filter mount pad of infusion flow, described air diaphragms is arranged at described filter mount pad bottom or is positioned at dropping funnel bottom under the filter mount pad bottom, described selection infusion set is fixed in described filter mount pad, described filter mount pad is connected in described dropping funnel bottom and is 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, the second tube for transfusion and continuous liquid supply hole, described the second tube for transfusion, described the first tube for transfusion, the height of the feed liquor end face in described continuous liquid supply hole reduces successively, described the first tube for transfusion, described the second tube for transfusion and described continuous liquid supply hole are arranged at respectively described filter mount pad, described the first tube for transfusion, described the second tube for transfusion and described continuous liquid supply hole are communicated with the outfan of described dropping funnel respectively, and the feed liquor face in described continuous liquid supply hole is positioned at described filter mount pad bottom.
2. automatic stop type anti-blood back infusion set with precise filter according to claim 1, it is characterized in that: 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 mount pad.
3. automatic stop type anti-blood back infusion set with precise filter according to claim 1, it is characterized in that: described hydrophilic diaphragm is arranged at described continuous liquid supply hole upper port and is connected through ultrasonic bonding with described filter mount pad, and/or described hydrophilic diaphragm is arranged at described continuous liquid supply orifice flow road wall and is connected through ultrasonic bonding with described filter mount pad.
4. automatic stop type anti-blood back infusion set with precise filter according to claim 1, it is characterized in that: described the second tube for transfusion is provided with the automatic vent groove, described automatic vent groove is radially offered along described the second tube for transfusion tube wall, and with the pipeline connection of the second tube for transfusion, liquid end till the described automatic vent trench bottom.
5. automatic stop type anti-blood back infusion set with precise filter according to claim 4, it is characterized in that: described automatic vent groove is provided with three, evenly be distributed the tube wall of being located at described the second tube for transfusion, the upper end of corresponding described the second tube for transfusion is provided with top cover, and described top cover is fixedly connected with the upper end of described the second tube for transfusion.
6. automatic stop type anti-blood back infusion set with precise filter according to claim 5, it is characterized in that: described the second tube for transfusion lower port is provided with hydrophilic diaphragm, and described hydrophilic diaphragm is connected through ultrasonic bonding with described the second tube for transfusion lower port or described filter mount pad.
7. automatic stop type anti-blood back infusion set with precise filter according to claim 1, it is characterized in that: described the first tube for transfusion lower port is provided with hydrophilic diaphragm, described hydrophilic diaphragm is connected through ultrasonic bonding with described the first tube for transfusion lower port or described filter mount pad, perhaps described the first tube for transfusion upper port is connected with hydrophilic diaphragm through ultrasonic bonding, and perhaps described the first tube for transfusion runner wall is connected with hydrophilic diaphragm through ultrasonic bonding.
8. automatic stop type anti-blood back infusion set with precise filter according to claim 1, it is characterized in that: described air diaphragms is arranged at described filter mount pad bottom, and described air diaphragms is connected through ultrasonic bonding with described filter mount pad bottom.
9. described automatic stop type anti-blood back infusion set with precise filter according to claim 1-8, it is characterized in that: described dropping funnel is provided with input duct and discharge duct, described input duct passes from inside to outside described dropping funnel top and is communicated with described bottle plug puncture unit, described discharge duct passes from inside to outside described dropping funnel top 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.
10. automatic stop type anti-blood back infusion set with precise filter according to claim 9, 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 from inside to outside described end cap and is communicated with described bottle plug puncture unit, and described discharge duct passes from inside to outside described end cap and is communicated with described exhaust port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220301487 CN202654497U (en) | 2012-06-26 | 2012-06-26 | Automatic-stop blood-return resistant precise filter transfusion apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220301487 CN202654497U (en) | 2012-06-26 | 2012-06-26 | Automatic-stop blood-return resistant precise filter transfusion apparatus |
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| CN202654497U true CN202654497U (en) | 2013-01-09 |
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| CN 201220301487 Expired - Fee Related CN202654497U (en) | 2012-06-26 | 2012-06-26 | Automatic-stop blood-return resistant precise filter transfusion apparatus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102688533A (en) * | 2012-06-26 | 2012-09-26 | 广东康尔美医疗器械有限公司 | Self-stopping type accurate filtering transfusion apparatus capable of preventing blood return |
| CN104274886A (en) * | 2013-07-29 | 2015-01-14 | 江西丽华鑫朗药业科技有限公司 | Precise automatic liquid-stopping air-bubble-proof infusion device |
-
2012
- 2012-06-26 CN CN 201220301487 patent/CN202654497U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102688533A (en) * | 2012-06-26 | 2012-09-26 | 广东康尔美医疗器械有限公司 | Self-stopping type accurate filtering transfusion apparatus capable of preventing blood return |
| WO2014000494A1 (en) * | 2012-06-26 | 2014-01-03 | 电白县康尔美生物科技有限公司 | Self-stopping type precision filter infusion apparatus capable of preventing blood return |
| 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 |
| CN104274886A (en) * | 2013-07-29 | 2015-01-14 | 江西丽华鑫朗药业科技有限公司 | Precise automatic liquid-stopping air-bubble-proof infusion device |
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