CN102688533A - 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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- CN102688533A CN102688533A CN2012102126471A CN201210212647A CN102688533A CN 102688533 A CN102688533 A CN 102688533A CN 2012102126471 A CN2012102126471 A CN 2012102126471A CN 201210212647 A CN201210212647 A CN 201210212647A CN 102688533 A CN102688533 A CN 102688533A
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- transfusion
- tube
- filter
- mount pad
- dropping funnel
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- 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
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- 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
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- 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
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- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
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 blood return prevention precision filter infusion set.
Background technology
In treatment clinical course, many patients often need infuse, to pass through this treatment means treating disease of transfusion and to rescue the critical illness patient.Thereby, in clinical treatment, need a large amount of use transfusion devices.
In the prior art, traditional transfusion device generally after the liquid transfusion of transfusion bag or infusion bottle finishes, needs the nursing staff in time to change liquid and perhaps pulls out pin.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 liquid such as new medicinal liquid, air will get into the following pipeline of transfusion device, will cause taking place 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 get into human body; Thereby human body is damaged, and the serious malpractice problem of nosocomial infection, phlebitis or the like occurs.Therefore in clinical treatment, how to solve this type problem and handle 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,, often all be to concentrate on to twine the conduit aerofluxus how fast, pull out transfusion needle and carry out methods such as aerofluxus and handle to the general processing method of the problems referred to above.These operations are unusual trouble often, not only needs veteran medical personnel to operate, and occurs pulling thunder bolt such as accident easily and take place.Thus; Not only waste medicinal liquid; And cause nosocomial infection easily, even and use such method to handle, also only be to have solved the problem that can infuse again; The risk problem of grievous injuries such as 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, though occurred some blood return prevention precision filter infusion sets on the market, generally be to infuse at the liquid of transfusion bag or infusion bottle to finish; And after the liquid transfusion in the dropping funnel finishes; Liquid stops to continue to the downcomer feed flow immediately, but because even inadequately at the liquid barrier film of air diaphragms formation, membrane thicknesses is also inconsistent; Make thus to be prone to still cause that the blood back phenomenon takes place, also make medical personnel not have the sufficiently long time to change dressings or pull out pin for the patient.And filter effect is not good, when the initial feed liquor of dropping funnel, need pinch and press dropping funnel aerofluxus imbibition, perhaps hangs upside down dropping funnel, thereby makes very inconvenience of operation.
Therefore; To the problem that exists in the prior art; After need providing the transfusion of a kind of automatic stop effectively and transfusion bag or infusion bottle to finish; Dropping funnel liquid still can continue feed flow a period of time, can play the effect that prevents blood back effectively, simple in structure, easy to operate automatic stop type blood return prevention secondary filter infusion techn is very necessary with the deficiency that solves prior art.
Summary of the invention
The objective of the invention is to avoid weak point of the prior art and provide a kind of and can prevent effectively that the blood back phenomenon from taking place, simple in structure, easy to operate automatic stop type blood return prevention precision filter infusion set.
The object of the invention is realized through following technical scheme:
A kind of automatic stop type blood return prevention precision filter infusion set is provided; Include dropping funnel, bottle plug puncture unit, conduit; Wherein: said dropping funnel bottom is provided with accurate filter; Said accurate filter is provided with air diaphragms, is used to adjust the selection infusion set and the filter mount pad of infusion flow; Said air diaphragms is arranged at said filter mount pad bottom or is positioned at the dropping funnel bottom under the filter mount pad bottom; Said selection infusion set is fixed in said filter mount pad; Said filter mount pad is connected in said dropping funnel bottom and is communicated with the outfan of said dropping funnel, and said selection infusion set is provided with hydrophilic diaphragm, and said selection infusion set includes first tube for transfusion, second tube for transfusion and continuous liquid supply hole; The height of the feed liquor end face in said second tube for transfusion, said first tube for transfusion, said continuous liquid supply hole reduces successively; Said first tube for transfusion, said second tube for transfusion and said continuous liquid supply hole are arranged at said filter mount pad respectively, and said first tube for transfusion, said second tube for transfusion and said continuous liquid supply hole are communicated with the outfan of said dropping funnel respectively, and the feed liquor face in said continuous liquid supply hole is positioned at said filter mount pad bottom.
Wherein, said hydrophilic diaphragm is arranged at said continuous liquid supply hole lower port, and said hydrophilic diaphragm is connected through ultrasonic bonding with said filter mount pad.
Wherein, Said hydrophilic diaphragm is arranged at said continuous liquid supply hole port and is connected through ultrasonic bonding with said filter mount pad, and/or said hydrophilic diaphragm is arranged at said continuous liquid supply orifice flow road wall and is connected through ultrasonic bonding with said filter mount pad.
Wherein, said second tube for transfusion is provided with the automatic vent groove, and said automatic vent groove is radially offered along the said second tube for transfusion tube wall, and with the pipeline connection of second tube for transfusion, said automatic vent trench bottom is the solution stopping end.
Wherein, said automatic vent groove is provided with three, and uniform distribution is opened in the tube wall of said second tube for transfusion, and the upper end of corresponding said second tube for transfusion is provided with top cover, and said top cover is fixedly connected with the upper end of said second tube for transfusion.
Wherein, the said second tube for transfusion lower port is provided with hydrophilic diaphragm, and said hydrophilic diaphragm is connected through ultrasonic bonding with said second tube for transfusion lower port or said filter mount pad.
Wherein, The said first tube for transfusion lower port is provided with hydrophilic diaphragm; Said hydrophilic diaphragm is connected through ultrasonic bonding with said first tube for transfusion lower port or said filter mount pad; The perhaps said first tube for transfusion port is connected with hydrophilic diaphragm through ultrasonic bonding, and the perhaps said first tube for transfusion runner wall is connected with hydrophilic diaphragm through ultrasonic bonding.
Wherein, said air diaphragms is arranged at said filter mount pad bottom, and said air diaphragms is connected through ultrasonic bonding with said filter mount pad bottom.
Wherein, Said dropping funnel is provided with input duct and discharge duct; Said input duct passes said dropping funnel top from inside to outside and is communicated with said bottle plug puncture unit; Said discharge duct passes said dropping funnel top from inside to outside and is communicated with exhaust port, and the height of the fluid port of said input duct is higher than the height of the air inlet port of said discharge duct.
Wherein, Said dropping funnel top is provided with end cap; Said end cap is connected with said dropping funnel top seal, and said input duct passes said end cap from inside to outside and is communicated with said bottle plug puncture unit, and said discharge duct passes said end cap from inside to outside and is communicated with said exhaust port.
In actual the use, can be provided with upper conduit between said bottle plug puncture unit and the said dropping funnel, said bottle plug puncture unit, upper conduit, input duct connect conducting successively.
Beneficial effect of the present invention:
Because automatic stop type blood return prevention precision filter infusion set of the present invention; 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, is used to adjust the selection infusion set and the filter mount pad of infusion flow; Air diaphragms is arranged at said filter mount pad bottom or is positioned at the dropping funnel bottom under the filter mount pad bottom, selects infusion set to be fixed in the filter mount pad, and 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 first tube for transfusion, second tube for transfusion and continuous liquid supply hole, the height of the feed liquor end face in second tube for transfusion, first tube for transfusion, continuous liquid supply hole reduces successively, and first tube for transfusion, second tube for transfusion and continuous liquid supply hole are arranged at the filter mount pad respectively; First tube for transfusion, 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, make and guaranteeing under the prerequisite of high efficiency filter, after liquid transfusion the finishing entering of transfusion bag or infusion bottle stops the state that drips; 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 the air admission downcomer effectively, and liquid is passed through and get into downcomer; Thereby it is really realize automatic stop and prevent the blood back generation of picture at present effectively, and simple in structure, easy to operate.
And; Because automatic stop type blood return prevention precision filter infusion set of the present invention; Be provided with input duct and discharge duct at dropping funnel; Input duct passes the dropping funnel top from inside to outside and is communicated with said bottle plug puncture unit, and discharge duct passes the 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 in dropping funnel, form the equilibrium air pressure chamber of a sealing; With the convenient speed of dripping of observing input duct, can not occur because of air arranged fully the liquid level that causes liquid high to or surpass inlet and observe and drip fastly, dropping funnel also need not be compressed into capable aerofluxus imbibition through pinching again; Need not 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 accomplish the aerofluxus feed liquor automatically, make it to operate more convenient.
Description of drawings
Utilize accompanying drawing that the present invention is described further, but the embodiment in the accompanying drawing does not constitute any restriction of the present invention.
Fig. 1 is the structural representation of a kind of automatic stop type blood return prevention precision filter infusion set of the present invention.
Fig. 2 is the structural representation of the accurate filter of a kind of automatic stop type blood return prevention precision filter infusion set 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 blood return prevention precision filter infusion set of the present invention.
Fig. 4 is the structural representation of the embodiment 6 of a kind of automatic stop type blood return prevention precision filter infusion set of the present invention.
Fig. 5 is the structural representation of the embodiment 2 of a kind of automatic stop type blood return prevention precision filter infusion set of the present invention.
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
In conjunction with following examples the present invention is described in further detail.
Automatic stop type blood return prevention precision filter infusion set of the present invention; Like 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, and accurate filter is provided with air diaphragms 12, is used to adjust the selection infusion set and the filter mount pad 8 of infusion flow, and air diaphragms 12 is arranged at said filter mount pad bottom or is positioned at the 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, selects infusion set to be provided with hydrophilic diaphragm 13, selects infusion set to include first tube for transfusion 7, second tube for transfusion 10 and continuous liquid supply hole 11; The height of the feed liquor end face in second tube for transfusion 10, first tube for transfusion 7, 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 mount pad 8, the first tube for transfusions 7, second tube for transfusion 10 and continuous liquid supply hole 11 respectively and 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; After liquid transfusion the finishing entering of transfusion bag or infusion bottle stopped the state that drips, the 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; Stoped the air admission downcomer effectively; And liquid is passed through and get into downcomer, thereby really realize automatic stop and prevent the blood back generation of picture at present effectively, and simple in structure, easy to operate.
The purpose of continuous liquid supply hole and hydrophilic diaphragm combinative structure particularly is set; Be to continue to permeate lentamente feed flow, rather than stop feed flow immediately in order liquid to be permeated to hydrophilic diaphragm through the continuous liquid supply hole of microcellular structure lentamente, to reach; Make air diaphragms can form the liquid barrier film of uniformity gradually; After the infiltration feed flow finishes, 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 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 11 lower port, runner wall, port make up setting in twos in the continuous liquid supply hole.
Hydrophilic diaphragm is a kind of of ultrafilter membrane, can be under very little pressure filtering liquid medicine.When liquid level is lower than 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, and flow velocity is lower, because the tension force effect of liquid and gas; Stoped air to get into the dropping funnel outfan effectively, really played the effect of blood return prevention through accurate filter.
Because above structure can realize automatic vent, automatic stop liquid, continue slow feed flow, blood return prevention function.This structure can make air stop to get into the outfan of dropping funnel automatically 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 accomplished; Just can stop transfusion fully, and this moment, air can not be through selecting infusion set.Simultaneously, this selection infusion set also has the automatic vent function during initial feed liquor before transfusion, can be provided the long supervision time to medical personnel, avoids malpractice to produce.
Concrete, second tube for transfusion 10 is provided with automatic vent groove 9, and automatic vent groove 9 is radially offered along second tube for transfusion, 10 tube walls, and with the pipeline connection of second tube for transfusion 10, automatic vent groove 9 bottoms are the solution stopping end.Make second tube for transfusion thus when feed liquor, air is discharged rapidly through 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, and uniform distribution is opened in the tube wall of 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 second tube for transfusion.Make second tube for transfusion thus when feed liquor, air disperses to discharge rapidly through 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, and exhaust effect is better; The setting of top cover simultaneously both can be strengthened the rigidity that second tube for transfusion is offered the automatic vent groove location, produced bubble in the time of also can avoiding directly liquidating of feed liquor and gas to cause liquid to get into second tube for transfusion.
And second tube for transfusion, 10 tube walls also can set equally distributed automatic vent groove 9 more than three, like four, five or six or the like.
In addition, the bottom of a plurality of automatic vent grooves 9 can also form fractionated solution stopping end respectively from the extremely low classification setting of height.
In selecting infusion set, what the feed liquor end face was the highest is second tube for transfusion, and when the liquid level in the dropping funnel was higher than the minimum solution stopping end of second tube for transfusion, infused simultaneously in first tube for transfusion, 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 solution stopping end of second tube for transfusion and is higher than the first tube for transfusion liquid feeding end, first tube for transfusion and continuous liquid supply hole be transfusion more slowly simultaneously; When liquid level is lower than the first tube for transfusion liquid feeding end, the slow feed flow in continuous liquid supply hole.
More than second tube for transfusion, 10 lower port can also be provided with hydrophilic diaphragm 13, 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 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 vent structure at this dropping funnel 1 top can need not be pinched and press dropping funnel 1 can accomplish transfusion so that just can directly change dressings in the transfusion back infuses again once more.
Thus; Make one high and one low input duct and discharge duct can in dropping funnel, form the equilibrium air pressure chamber of a sealing; With the convenient speed of dripping of observing input duct, can not occur because of air arranged fully the liquid level that causes liquid high to or surpass inlet and observe and drip fastly, dropping funnel also need not be compressed into capable aerofluxus imbibition through pinching again; Need not 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 accomplish the aerofluxus feed liquor automatically, make it to operate more convenient.
The embodiment 2 of automatic stop type blood return prevention precision filter infusion set 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, and 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 to make, install more easy.
The embodiment 3 of automatic stop type blood return prevention precision filter infusion set of the present invention; Like Fig. 1, shown in 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 stops feed flow automatically, 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 admission, thereby reach automatic stop liquid and prevent to drip 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.
The embodiment 4 of automatic stop type blood return prevention precision filter infusion set of the present invention; Embodiment 4 is with the difference of embodiment 1, embodiment 2, embodiment 3: 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 second tube for transfusion, 10 lower port.
Perhaps, hydrophilic diaphragm 13 can also connect through ultrasonic bonding with filter mount pad 8 corresponding second tube for transfusion, 10 lower port seats.
The embodiment 5 of automatic stop type blood return prevention precision filter infusion set of the present invention; Embodiment 5 is with the difference of embodiment 1, embodiment 2, embodiment 3, embodiment 4: 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 first tube for transfusion, 7 lower port.
Perhaps, hydrophilic diaphragm 13 can also connect through ultrasonic bonding with filter mount pad 8 corresponding first tube for transfusion, 7 lower port seats.
Perhaps, first tube for transfusion, 7 port can be connected with hydrophilic diaphragm 13 through ultrasonic bonding.
Perhaps, 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 blood return prevention precision filter infusion set 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 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 through ultrasonic bonding.Air diaphragms can play the effect that intercepts the air admission downcomer, thereby prevent the air admission human body under moistening situation, and being totally lost when medicinal liquid promptly 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 is provided with, and continues slow feed flow and can reach more than 30 minutes, rather than stop feed flow immediately, plays blood return prevention function truly.
Operation principle of the present invention:
Earlier bottle plug puncture unit is directly inserted the socket of transfusion bag or infusion bottle; Flow regulator is placed the closed position; With puncture patient's vein blood vessel of venoclysis needle, again flow regulator is adjusted to needed transfusion speed, the liquid input dropping funnel of transfusion bag or infusion bottle then; Get into the transfusion needle tubule from dropping funnel through downcomer again, and then input to patient's vein blood vessel through venoclysis needle.
Select infusion set to select to adjust infusion flow and flow velocity automatically 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, promptly with bigger flow output liquid.After the liquid in transfusion bag or the infusion bottle is totally lost; Remaining liquid can reduce along with the discharge of liquid gradually 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, transfusion and enter to slow transfusion more slowly, promptly 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, big appointment continues nearly 30 minutes.Simultaneously because liquid and the tension force of gas and the effect of air diaphragms have stoped the air admission downcomer effectively, and liquid is passed through and get into downcomer.Make medical personnel easily to handle thus, the blood back phenomenon of having avoided transfusion device of the prior art to cause.And, even slowly transfusion also can stop the air admission downcomer effectively, 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 technical scheme of the present invention to be described but not to the restriction of protection domain of the present invention; Although the present invention has been done detailed description with reference to preferred embodiment; Those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technical scheme of the present invention, and do not break away from the essence and the scope of technical scheme of the present invention.
Claims (10)
1. automatic stop type blood return prevention precision filter infusion set; Include dropping funnel, bottle plug puncture unit, conduit; It is characterized in that: said dropping funnel bottom is provided with accurate filter; Said accurate filter is provided with air diaphragms, is used to adjust the selection infusion set and the filter mount pad of infusion flow; Said air diaphragms is arranged at said filter mount pad bottom or is positioned at the dropping funnel bottom under the filter mount pad bottom; Said selection infusion set is fixed in said filter mount pad; Said filter mount pad is connected in said dropping funnel bottom and is communicated with the outfan of said dropping funnel, and said selection infusion set is provided with hydrophilic diaphragm, and said selection infusion set includes first tube for transfusion, second tube for transfusion and continuous liquid supply hole; The height of the feed liquor end face in said second tube for transfusion, said first tube for transfusion, said continuous liquid supply hole reduces successively; Said first tube for transfusion, said second tube for transfusion and said continuous liquid supply hole are arranged at said filter mount pad respectively, and said first tube for transfusion, said second tube for transfusion and said continuous liquid supply hole are communicated with the outfan of said dropping funnel respectively, and the feed liquor face in said continuous liquid supply hole is positioned at said filter mount pad bottom.
2. automatic stop type blood return prevention precision filter infusion set according to claim 1 is characterized in that: said hydrophilic diaphragm is arranged at said continuous liquid supply hole lower port, and said hydrophilic diaphragm is connected through ultrasonic bonding with said filter mount pad.
3. automatic stop type blood return prevention precision filter infusion set according to claim 1; It is characterized in that: said hydrophilic diaphragm is arranged at said continuous liquid supply hole port and is connected through ultrasonic bonding with said filter mount pad, and/or said hydrophilic diaphragm is arranged at said continuous liquid supply orifice flow road wall and is connected through ultrasonic bonding with said filter mount pad.
4. automatic stop type blood return prevention precision filter infusion set according to claim 1; It is characterized in that: said second tube for transfusion is provided with the automatic vent groove; Said automatic vent groove is radially offered along the said second tube for transfusion tube wall; And with the pipeline connection of second tube for transfusion, said automatic vent trench bottom is the solution stopping end.
5. automatic stop type blood return prevention precision filter infusion set according to claim 4; It is characterized in that: said automatic vent groove is provided with three; Uniform distribution is opened in the tube wall of said second tube for transfusion; The upper end of corresponding said second tube for transfusion is provided with top cover, and said top cover is fixedly connected with the upper end of said second tube for transfusion.
6. automatic stop type blood return prevention precision filter infusion set according to claim 5; It is characterized in that: the said second tube for transfusion lower port is provided with hydrophilic diaphragm, and said hydrophilic diaphragm is connected through ultrasonic bonding with said second tube for transfusion lower port or said filter mount pad.
7. automatic stop type blood return prevention precision filter infusion set according to claim 1; It is characterized in that: the said first tube for transfusion lower port is provided with hydrophilic diaphragm; Said hydrophilic diaphragm is connected through ultrasonic bonding with said first tube for transfusion lower port or said filter mount pad; The perhaps said first tube for transfusion port is connected with hydrophilic diaphragm through ultrasonic bonding, and the perhaps said first tube for transfusion runner wall is connected with hydrophilic diaphragm through ultrasonic bonding.
8. automatic stop type blood return prevention precision filter infusion set according to claim 1 is characterized in that: said air diaphragms is arranged at said filter mount pad bottom, and said air diaphragms is connected through ultrasonic bonding with said filter mount pad bottom.
9. according to the described automatic stop type blood return prevention of claim 1-8 precision filter infusion set; It is characterized in that: said dropping funnel is provided with input duct and discharge duct; Said input duct passes said dropping funnel top from inside to outside and is communicated with said bottle plug puncture unit; Said discharge duct passes said dropping funnel top from inside to outside and is communicated with exhaust port, and the height of the fluid port of said input duct is higher than the height of the air inlet port of said discharge duct.
10. automatic stop type blood return prevention precision filter infusion set according to claim 9; It is characterized in that: said dropping funnel top is provided with end cap; Said end cap is connected with said dropping funnel top seal; Said input duct passes said end cap from inside to outside and is communicated with said bottle plug puncture unit, and said discharge duct passes said end cap from inside to outside and is communicated with said 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 |
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| Publication Number | Publication Date |
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| CN102688533A true CN102688533A (en) | 2012-09-26 |
| CN102688533B CN102688533B (en) | 2015-04-29 |
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| 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 |
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| WO (1) | WO2014000494A1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN103341223A (en) * | 2013-06-25 | 2013-10-09 | 张甜生 | Disposable automatic control transfusion device |
| 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 |
| 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 |
| CN111163816A (en) * | 2017-05-19 | 2020-05-15 | 珀雷克斯公司 | Infusion device with hydrophilic sintered porous plastic or hydrophilic porous fiber air blocking filter |
| CN115845188A (en) * | 2022-12-15 | 2023-03-28 | 浙江乐信医疗科技有限公司 | Method and device for automatically removing air bubbles in medical liquid flow path |
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| 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 |
| 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 |
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| 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 |
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| CN201692443U (en) * | 2009-10-13 | 2011-01-05 | 武汉智迅创源科技发展有限公司 | Automatic vent safe infusion device |
| 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 |
| CN201969108U (en) * | 2011-01-16 | 2011-09-14 | 谢世庚 | Automatic blood backflow prevention infusion apparatus |
| CN202654497U (en) * | 2012-06-26 | 2013-01-09 | 广东康尔美医疗器械有限公司 | Automatic-stop blood-return resistant precise filter transfusion apparatus |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| WO2014082413A1 (en) * | 2012-11-30 | 2014-06-05 | 电白县康尔美生物科技有限公司 | Bladder-type automatic infusion apparatus |
| CN103341223A (en) * | 2013-06-25 | 2013-10-09 | 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 |
| CN111163816A (en) * | 2017-05-19 | 2020-05-15 | 珀雷克斯公司 | Infusion device with hydrophilic sintered porous plastic or hydrophilic porous fiber air blocking filter |
| 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 |
| CN115845188A (en) * | 2022-12-15 | 2023-03-28 | 浙江乐信医疗科技有限公司 | Method and device for automatically removing air bubbles in medical liquid flow path |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102688533B (en) | 2015-04-29 |
| WO2014000494A1 (en) | 2014-01-03 |
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