CN102363058A - Automatic exhausting and liquid stopping multiple-effect infusion set - Google Patents
Automatic exhausting and liquid stopping multiple-effect infusion set Download PDFInfo
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- CN102363058A CN102363058A CN2011103437064A CN201110343706A CN102363058A CN 102363058 A CN102363058 A CN 102363058A CN 2011103437064 A CN2011103437064 A CN 2011103437064A CN 201110343706 A CN201110343706 A CN 201110343706A CN 102363058 A CN102363058 A CN 102363058A
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Abstract
The invention relates to the technical field of medical equipment, in particular to an automatic exhausting and liquid stopping multiple-effect infusion set. The bottom of a dripping hopper is provided with an exhaust filter pipe sealed with a vertical filter membrane of which the bubble point pressure of 7.85-25.0kPa; the vertical filter membrane is gradually submersed when liquid is injected, so that a mode that the liquid is accumulated at the lower end and gas is exhausted at the upper end is realized; and by combining the special structure of the exhaust filter pipe, the multiple-effect aims of automatically exhausting, filtering a liquid medicine, eliminating bubbles and automatically stopping the liquid are skillfully fulfilled.
Description
Technical field
The present invention relates to technical field of medical instruments, be specifically related to the multiple-effect transfusion device of a kind of automatic vent and solution stopping.
Background technology
The exhaust problem of transfusion device, exist bubble to get into problems such as conduit easily; It all is the difficult problem of puzzlement nursing industry all the time; In response to this difficult problem; Many technical schemes that solve this difficult problem appear in recent years, like Chinese patent ZL03205459.9 bubble-proof transfusion device, and ZL200820204818.5 improved infusion unit titrimeter inside exhaust pipe; And one Chinese patent application 200610146971.2 automatically exhausting self-destruction type infusion devices etc.; Although subtlety is distinguished to some extent, proposed all to realize the technical scheme that transfusion device aerofluxus first realizes automatically that its key feature receives temporarily stopping of exhaustor when being to utilize the strip gap structure of exhaustor to make liquid get into dropping funnel and postpones with the mode of the built-in exhaustor in dropping funnel bottom; Just get into the conduit below the dropping funnel after making liquid in dropping funnel, be accumulated to certain altitude, simulated the nursing staff and pushed dropping funnel and realize deflated effect to fill liquid.The all tangible advance of these patents or patent application; But also there is limitation; Only solved self-bleeding problem, walked the difficult problem that empty air afterwards gets into conduit easily at dropping funnel liquid easily, promptly realized that on the automatic solution stopping problem be helpless for bubble; And the unified of above-mentioned two difficult problems solves, and is the expectation of always raising one's head and looking of nursing industry.For the technical scheme of uniting of automatic vent, all kinds of maturations quite a lot or jejune technical scheme have been proposed also in recent years with automatic solution stopping performance.Problem hereto; The one Chinese patent application that the inventor once proposed is typically safe transfusion system manufacturing approach or 201110278362.3 the safe transfusion systems based on bubble point pressure principle of one Chinese patent application 201010290116.5 based on the bubble point pressure principle, and be more clearly, has all proposed it clearly and has realized principle and structure; Its key feature is that the bubble point that utilizes filter membrane (or is claimed bubbling point; Be bubble point) characteristic after transfusion device fluid drips sky, prevent that the air admission blood vessel from causing malpractice and realize the purpose of its safety, they all can belong to the problem of handling automatic solution stopping effectively; Also proposed simultaneously to realize the technical scheme of automatic vent performance; Advanced obvious, limit to also very outstanding, in two technical schemes; All be provided with the exhaustor that begins to stretch into the dropping funnel middle part from dropping funnel lid to implement the automatic vent performance; But this class formation is extremely complicated and exist and produce the performance difficulty except technology and structure, also has two problems that risk is very high, thereby first transportation, unexpected extruding etc. very easily cause the exhaustor fracture to make automatic vent inefficacy and leak of liquid and pollution; It two is to handle the built-in bubble that can't get rid of filter membrane and dropping funnel bottom because of the bubbling point characteristic of filter membrane, makes the later stage effusion bubble of transfusion device exhaust process cause liquid and temporal waste.
In view of one Chinese patent application 201010290116.5 or 201110278362.3 existing second above-mentioned defective; The inventor number is in the technical scheme of 201110194630.3 1 kinds of embodiment 3 that improve the deflated safe transfusion system of dropping funnel in one Chinese patent application; A kind of effective solution has been proposed; Its processing target is to make the built-in bubble that can't get rid of filter membrane and dropping funnel bottom because of the bubbling point characteristic of filter membrane obtain perfect the solution; If do not propose above-mentioned technical scheme and idea on this basis about making automatic vent and automatic solution stopping performance be able to unite; Even so, but the structure of the gas-liquid runner of the proposition of this scheme, for automatic vent and automatic solution stopping performance are able to unified providing the foundation.
Also have a kind of with the same principle be the basis a series of schemes in have much representational technical scheme; Be that Granted publication number is that the medical filtration capsule blood return preventing infusion device technical scheme of CN 201807010U, this scheme declare to realize automatic vent, solution stopping automatically, blood return prevention and four kinds of performances of medical filtration (seeing the paragraph 0004 of description page 1 in the CN 201807010U file) simultaneously with a filter member.Declaring just as its institute, then is perfect solution of an above-mentioned difficult problem, but knows that the people in the industry of transfusion essence all knows; Automatically solution stopping and two performances of blood return prevention are contradiction, because the existence that human vein is pressed, since solution stopping automatically; Just can't really effectively prevent blood back, prevent that blood back from must depend on positive pressure infuser, but as long as also there is transfusion; No matter be to instil, the liquid infiltration that still relies on the guiding of drainage thread described in the CN 201807010U file passes said filtration capsule, in essence as long as also there is the infiltration of liquid; It all is positive pressure infuser; And non-automatic solution stopping can only be referred to as slowly or the trace transfusion at most, and 0005 paragraph in the CN 201807010U file is described just like this.The so-called solution stopping of solution stopping automatically; Must be that a kind of absolute state just can be referred to as solution stopping; It repels existence with blood return prevention needed when transfusion trace in itself each other; The blood return prevention performance is the performance that CN 201807010U file is stressed, the existence of this performance its " solution stopping automatically " of declaring of having given counterevidence not is the solution stopping that possesses on the absolute sense, this just this technical scheme have the key of great risk.As everyone knows, since be trace transfusion, then no matter the high liquid storage design of 5mm of this technical scheme setting exhausts the time what is, always the time that exhausts is all arranged, technologic error can cause the drainage thread of its setting to be difficult to control exactly the time of exhausting, this one of which; In addition, mostly transfusion outpatient is can free active individuality, and its position is not invariable; The finish position of instinct of patient transfusion is movable; As the downward action suddenly of the limbs of the transfusion point of puncturing, can directly increase the absolute altitude of fluid column in the conduit, increase the pressure of pullling of downward direction in the filtration conduit that capsule bore indirectly; It is unbalance suddenly very likely to make originally because of fluid drips empty and conduit head of liquid be tending towards roughly equilibrated filtration capsule; In be stored in the liquid that filters between the capsular fibers and be drawn into fast in the conduit, also be difficult in time replenish via the design of the liquid of drainage thread, thereby make the filtration capsule moment inefficacy that itself does not have absolute solution stopping ability because of slowly fluid infusion; Air in the dropping funnel injects conduit immediately, this its two.In the reality transfusion; The carelessness nursing is difficult to definitely avoid; Fully trust under its automatic solution stopping performance situation of declaring the nursing staff,, then very easily lead to the serious accident of death in case neglect nursing because of above-mentioned binomial reason cause air gets in the conduit.
Summary of the invention
The purpose of this invention is to provide and a kind ofly can solve a difficult problem that relates in the above-mentioned background technology; Overcome the described defective of background technology; Realize automatic vent performance and the unification of solution stopping performance automatically; The multiple-effect ability transfusion device that collection medical filtration, automatic vent, elimination bubble and automatic solution stopping quadruple effect can be unified, it has succinct, effective and stable characteristics.
In order to realize the purpose of above-mentioned basis, the technical scheme below the present invention has adopted:
The multiple-effect transfusion device of automatic vent and solution stopping; This transfusion device comprises dropping funnel 1, dropping funnel lid 2, dropper 21, exhaust gas filter pipe 3 and conduit 4, and it is 2 one-body molded and be communicated with that said dropper 21 and dropping funnel cover, and the bottom outside of said dropping funnel 1 is extended an incoming end 11; Wherein, Exhaust gas filter pipe 3 is made up of the assembly that comprises top 31, prolongation pipe 32, filter membrane 35, base plate 36 and a plate 37, and filter membrane 35 vertically is installed on the exhaust gas filter pipe 3, and the top 31 of exhaust gas filter pipe 3 constitutes a cavity with filter membrane 35 and base plate 36; This cavity is divided into filter chamber 39 and is gone out sap cavity 33 by a plate 37, filter membrane 35, filter chamber 39 and to go out sap cavity 33 side by side vertical.Saidly go out sap cavity 33 and be communicated with by being positioned at both vertical fluid osculums 34, go out sap cavity 33 and prolong pipe 32 and be communicated with filter chamber 39.Said exhaust gas filter pipe 3 is installed on the bottom of dropping funnel 1 inner chamber; It prolongs the inner chamber that pipe 32 inserts the incoming end 11 of dropping funnel 1; 4 in conduit inserts the inner chamber that prolongs pipe 32; Make exhaust gas filter pipe 3 prolong pipe 32 via it and is communicated with conduit 4, the liquid inlet of exhaust gas filter pipe 3 is a filter membrane 35, and liquid outlet manages 32 for prolongation.
Wherein, said filter membrane 35 be a kind of bubble point value between 7.85kPa less than the liquid filtration medium between the 25.00kPa, its side is communicated with dropping funnel 1 inner chamber.
In the technique scheme, the passage that flows to of liquid is to advance in order with the order of " dropper 21-dropping funnel 1-filter membrane 35-filter chamber 39-fluid osculum 34-goes out sap cavity 33-and prolongs pipe 32-conduit 4 ", and any filter medium no matter its liquid is much through amount; All the liquid of flowing through is caused stopping to a certain degree, and filter membrane 35 is arranged on the door of liquid flow pass of dropping funnel 1 inner chamber, after liquid gets into dropping funnel 1; Directly receive stopping of filter membrane 35, can not penetrate filter membrane 35 immediately and be detained and liquid level is raised in accumulation gradually, again because filter membrane 35 is vertical installations at dropping funnel 1 inner chamber; Therefore the accumulation of liquid only can be flooded filter membrane 35 from bottom to up gradually, and not covered filter membrane 35 its drying nests are gas-pervious, and liquid constantly gets into dropping funnel 1 accumulation and the liquid level raised under action of gravity; Can discharge extraneous from the not buried part of filter membrane 35 through the passage of the aforesaid liquid flow direction by extruding dropping funnel 1 interior air; Be raised to the upper end that reaches exhaust gas filter pipe 3 until liquid level, filter membrane 35 is submerged or soaks into fully and drenches, and its characteristic of separate air that bubble point has between 7.85kPa is less than 25.00kPa is then brought into play the plugging action to air; The continuation that stops air is discharged; At this moment, dropping funnel 1 is closed with extraneous passage, then has been communicated with the passage between dropping funnel 1 to the infusion bottle at the flow morphology that in fact adds liquid with gas; Cause the pressure that adds all filter membranes 35 to increase suddenly; Make the liquid in the dropping funnel 1 break through stopping of filter membrane 35 and get into the passage that aforesaid liquid flows to, in the traveling process of liquid, liquid can be filled with arbitrary place of the passage of this flow direction; Thereby the air of driveing in the transfusion device pipeline is discharged extraneous and the completion aerofluxus; This process is because liquid injects under action of gravity incessantly, and overall process need not to push dropping funnel 1, can accomplish aerofluxus automatically.In addition, the above-mentioned performance that stops about 35 pairs of liquid of filter membrane is not unalterable in theory; Do not get rid of and possibly exist some to have the medicinal liquid that height oozes characteristic for filter membrane 35, for example the above ethanol of 75% concentration shows during drug test that can get into dropping funnel 1 back at medicinal liquid be prone to penetrate filter membrane 35 with respect to common medicine and get into filter chamber 39; See the report that venous transfusion can be imported the ethanol of 75% concentration although rarely have; Yet then should not negate or get rid of its probability from point of theory, but even so, do not influence yet medicinal liquid in dropping funnel 1 accumulation and accomplish aerofluxus smoothly; Because the top of said exhaust gas filter pipe 3 31 constitutes a cavity with filter membrane 35 and base plate 36; This cavity is divided into filter chamber 39 and is gone out sap cavity 33 by a plate 37, and filter membrane 35, filter chamber 39 and to go out sap cavity 33 be vertical arranged side by side, and the passage that the liquid of filter chamber 39 flows out fluid chamber 33 only has the fluid osculum 34 that is positioned at its upper end; So under the situation of special medicinal liquid quick penetration filter membrane 35; Between plate 37 compensatory the function of filter membrane 35 barrier liquids, can make accumulation of fluid arrive the upper end of exhaust gas filter pipe 3 equally, filter membrane 35 is submerged or soaks into drenched fully and play a role; And then stop to fill of dropping funnel 1, simultaneously to the row of passages of flow direction and then accomplish aerofluxus automatically.It is worthy of note; Still can be when under some hyperosmotic drugs, losing the ability of barrier liquid by this compensatory angle of a plate 37 from filter membrane 35; Pursue the compatibility of other performances like non-present technique scheme intention, merely from realizing self-bleeding angle, then also nonessential select for use the bubble point between 7.85kPa less than the filter medium between the 25.00kPa; Other filter mediums can be realized automatic vent equally in the said structure of present technique scheme.
In the present technique scheme, filter membrane 35, filter chamber 39 and to go out sap cavity 33 be vertical arranged side by side, and filter chamber 39 with go out being communicated with of sap cavity 33 and be merely the fluid osculum 34 that is positioned on both with passage; When filter membrane 35 got into, the effect owing to gravity can not flow directly into fluid in flow of liquid; 33, but arrive at the bottom of filter chamber 39 earlier, build up along with the injection of liquid and upwards raise liquid level; Spill into out sap cavity 33 until filling with whole filter chamber 39 backs from fluid osculum 34; Begin then to come downwards to prolong and manage 32, and get into conduit 4, flow out extraneous.Liquid begins upwards accumulation from filter chamber 39, gentlely so flows out to circuitously in the extraneous process, can fill with the everywhere of the whole passage of flowing through and does not stay the dead angle; Again since liquid specific gravity greater than air; In the extruding of liquid with flow down, air can on escaped before the head of flowing liquid, the external world and all drive away; Therefore; In the self-bleeding process of above-mentioned realization, the ingenious structure of exhaust gas filter pipe 3 has also been eliminated and be built in the air of flow of liquid through passage simultaneously, makes transfusion device be about to whole end and liquid flow quickens under the more and more faster situation in aerofluxus; Built-in air can not left behind and is blended in the liquid with the form of bubble, has realized eliminating the effect of bubble synchronously.
Exhaust at liquid in infusion bottle, when the fluid drips of dropping funnel 1 was empty, the liquid of submergence filter membrane 35 disappeared; Moistening filter membrane 35 exposes in the air, and this moment, characteristic that bubble point has between 7.85kPa is less than 25.00kPa played a role, and air can't be crossed filter membrane 35; Because no liquid is replenished, and also can't get into air, then in fact forming an effect that is equal to the close transfusion device fluid passage at filter membrane 35 places; It reached closes effect and pinches that to close the effect that transfusion device pipeline or close transfusion device actuator reached be the same, like this then make the liquid that passage be full of of inherent filtration film below 35 can't continue to flow downward, so has also stopped transfusion; And the behavior that stops to infuse; Be to take place immediately when also air contacts at the fluid drips sky, need not any intervention, reach the purpose of the automatic solution stopping of the present invention by 35 inherent physical characteristics of filter membrane; Connect when renewing infusion bottle the nursing staff; Liquid gets into dropping funnel 1 again, touches filter membrane 35, then can restart the transfusion behavior once more automatically.Be that one Chinese patent application 201010290116.5 or 201110278362.3 sets the bubble point of filter medium between 7.85kPa is less than 25.00kPa, is meant the purpose that in this scope, all can realize automatic solution stopping safely what this also need particularly point out; And set when being limited to 7.85kPa under it, factors such as the transfusion of consideration clinostatism, human vein pressure and conventional transfusion height are set, and the present technique scheme is equal to this bubble point range of application and considers based on these factors equally; Yet; In the scope of transfusion device mandatory rules of law index permission, the transfusion device goods should trend towards the safer starting point that is as far as possible, therefore; The present technique scheme more trends towards suggestion bubble point and is not less than 18kPa; Exceed thousand routine simulation experiments and show, on this numerical value basis, requiring total length with GB is the transfusion device test of 160cm; The not enough 90cm of the absolute altitude of its water column; The time that bubble point can be supported safety to stop to infuse automatically no gas leaks for the filter membrane 35 of 18kPa is far longer than any nursing interval at least greater than 24h, also allows the patient to do any speed or modal limbs are unfolded or changed.Therefore, in the present technique scheme, the effect of the automatic solution stopping that is reached, its effect is absolute in transfusion permission category.
Among the present invention program, the number of combinations of filter membrane on the said exhaust gas filter pipe 3 35 and filter chamber 39 is one group or two or more sets, and combination form is vertical single face or two sides or polyhedron or cylinder.These quantity different combinations or forms; All can realize the object of the invention; Yet from work simplification and suitable volume production equal angles, one group is optimum selection on the number of combinations, and vertical single face is optimum selection on the form; As be based on and must enlarge considering of its fluid flow in the confined space of dropping funnel 1 and set out, then can select vertical two sides.
As preferably, the top 31 of said exhaust gas filter pipe 3 is sealed, and its closure at least vertically covers vertical filter membrane 35.The usefulness that is provided with like this is that dropper 21 effusive liquid that can nots directly drench filter membrane 35, thereby avoids the characteristic generation effect too early of filter membrane 35 separate air and stop aerofluxus, causes the liquid level in the dropping funnel 1 not enough.
As preferably, said exhaust gas filter pipe 3 is provided with one and manages 32 circular baffle plate 30 perpendicular to prolongation prolonging base portion that pipe 32 is connected with the main body of exhaust gas filter pipe 3.The usefulness of this setting is to assemble aerofluxus filter tube 3 and makes when prolonging the incoming end 11 of managing 32 insertion dropping funnels 1; Be convenient to support, the clamping of assembly tooling and rigging position carried out accurately spacing; The circular structure that can also utilize baffle plate 30 is oppressed the inner chamber perisporium of dropping funnel 1 with the close-fitting state, the risk of leakage when reducing exhaust gas filter pipe 3 and being communicated with dropping funnel.
As preferably, said exhaust gas filter pipe 3 is to insert the inner chamber that prolongs pipe 32 by conduit 4 with being communicated with of conduit 4, and such syndeton can be eliminated and liquid flow direction dead angle forward, can't in time fill with when avoiding liquid to flow through fast and keeps air.
As preferably, longitudinal center's line position of one of them of said exhaust gas filter pipe 3 or dropper 21 is set to depart from the longitudinal centre line of dropping funnel 1.The usefulness that is provided with like this is; All be on the longitudinal centre line of dropping funnel 1 like exhaust gas filter pipe 3 or dropper 21; The liquid that then injects from dropper 21 can directly hit exhaust gas filter pipe 3; Increase filter membrane 35 too early by all moistening and can't continue to discharge the risk of gas, its consequence is that the liquid level of dropping funnel 1 inner chamber will be not enough, and automatic vent and accomplishing fills the effect that dropping funnel 1 liquid level reaches about 1/2 height and is affected; And any is set to depart from the longitudinal centre line of dropping funnel 1 between exhaust gas filter pipe 3 or the dropper 21, then can avoid above-mentioned risk.
As preferably, but the side that said filter membrane 35 is communicated with dropping funnel 1 inner chamber is coated with the protecting cover 38 that a liquid free flow is crossed, its perisporium and exhaust gas filter pipe 3 close proximity.The dropping funnel 1 of transfusion device all possibly receive unexpected excessive compression in processes such as production, transportation, application, and the setting of protecting cover 38 can protect fragile relatively filter membrane 35 injury-free, and the liquid that does not also influence in the dropping funnel 1 gets into filter membrane 35.Secondly, said protecting cover 38 is provided with one or two or many vertical gas-liquid cracks 381 that connect with filter membrane 35, and its width is between between the 0.2mm to 1.0mm.The present technique scheme does not limit the length in said vertical gas-liquid crack 381; Yet from technology and injection molding angle easily, gas-liquid crack 381 should be run through the wall end of the protecting cover 38 at its place to top, and said vertical gas-liquid crack 381 is based on liquid phase and the tensile difference of solid phase molecular surface; When liquid injects dropping funnel 1; Can postpone liquid and get into contacted filter membrane 35, but be vertical structures based on gas-liquid crack 381 equally, can just do not flooded quickly by liquid; And the air that is not submerged in the part derivation dropping funnel 1 capable of using is discharged the external world through filter membrane 35, just gets into contacted filter membrane 35 until the stopping of deadweight breakthrough gas-liquid crack 381 of accumulation of fluid.Certainly, the usefulness in gas-liquid crack 381 is because relatively more responsive and unstable with respect to the pressure and temperature that weather caused, and in the present technique scheme, it is only as a kind of useful reinforcement.
In general; Liquid level in the dropping funnel 1 approximates 1/2 dropping funnel height and gets final product; And liquid level is determined by exhaust gas filter pipe 3, more precisely, is that the height by the vertical filter membrane of installing 35 on the exhaust gas filter pipe 3 determines; It can be regulated as required, and this need be decided by liquid level height and two factors of traffic requirement in the dropping funnel 1.
In the present technique scheme, dropper 21 injects liquid and filter membrane 35 by abundant moistening time difference in dropping funnel 1, is crucial for the expression of automatic vent performance; Therefore for the change of some setting of transfusion device; As increase the speed of the liquid that injects dropping funnel 1, or reduce the fiber water-wet behavior of filter membrane 35, or the support bar 371 that is connected on the plate 37 is set; Filter membrane 35 by being divided into filter membrane 351 and following filter membrane 352; And be provided with the through hole 372 that at least one is communicated with filter chamber 39 in the support bar 371, through the upwards infiltration of liquid of similar structures, to keep the exhaust performance of filter membrane 351 to block contacted filter membrane 35; This type of change that is provided with is to help the advantage of present technique scheme to obtain more perfect performance, also is feasible technically.
Cardinal principle of the present invention is:
Vertical mode of installing taked by the filter membrane 35 that utilization has a specific bubble point so that liquid only can bottom-up gradually submergence; And filter membrane 35 or vertical filter chamber 39 possess and postpone the characteristic that liquid gets into; Make liquid in dropping funnel 1, accumulate and push air and discharged extraneous by buried part from filter membrane 35; Can when accumulation of fluid arrives submergence filter membrane 35, stop the aerofluxus of dropping funnel 1 again and break through filter membrane 35 or filter chamber 39 between plate 37 stop; Liquid continue to inject the aerofluxus with automatic completion conduit 4 under weight-driven again, realizes automatic vent, combines exhaust gas filter pipe 3 to eliminate the architectural feature of bubbles and the strainability that filter membrane 35 is possessed and the performance of automatic solution stopping; Realize the performance set of aerofluxus, filtration, elimination bubble and solution stopping integratedly, reach the object of the invention.
Technical scheme of the present invention only needs to install one at dropping funnel 1 intracavity bottom and has vertical filter membrane 35 and filter chamber 39 vertically arranged side by side with it and go out the exhaust gas filter pipe 3 of sap cavity 33 structures; Can effectively solve the difficult problem of automatic vent and automatic solution stopping; Overcome the said defective of background technology; And make medical filtration, automatic vent, elimination bubble and automatically solution stopping all the time usefulness realize the high unity on pattern and the performance; Structure is extremely simple, technology is very easy, and is easy to craft or automatization's enforcement, and volume production and performance are all stable.
Description of drawings
Fig. 1 is the multiple-effect transfusion device cross-sectional view of the embodiment of the invention 1.
Fig. 2 is the exhaust gas filter pipe cross-sectional view of the multiple-effect transfusion device of the embodiment of the invention 2.
Fig. 3 is the exhaust gas filter pipe cross-sectional view of the multiple-effect transfusion device of the embodiment of the invention 3.
Fig. 4 is the forward view of the protecting cover on the exhaust gas filter pipe of multiple-effect transfusion device of the embodiment of the invention 3.
The specific embodiment
Technical scheme of the present invention is done further with exemplary embodiments below in conjunction with accompanying drawing and to be specified.
Multiple-effect transfusion device as shown in Figure 1; This transfusion device comprises dropping funnel 1, dropping funnel lid 2, dropper 21, exhaust gas filter pipe 3 and conduit 4, and it is 2 one-body molded and be communicated with that said dropper 21 and dropping funnel cover, and the bottom outside of said dropping funnel 1 is extended an incoming end 11; Wherein, Exhaust gas filter pipe 3 is made up of the assembly that comprises top 31, prolongation pipe 32, filter membrane 35, base plate 36 and a plate 37, and filter membrane 35 vertically is installed on the exhaust gas filter pipe 3, and the top 31 of exhaust gas filter pipe 3 is sealed; Its closure at least vertically covers vertical filter membrane 35; The top 31 of exhaust gas filter pipe 3 constitutes a cavity with filter membrane 35 and base plate 36, and this cavity is divided into filter chamber 39 and is gone out sap cavity 33 by a plate 37, filter membrane 35, filter chamber 39 and to go out sap cavity 33 side by side vertical.Saidly go out sap cavity 33 and be communicated with by being positioned at both vertical fluid osculums 34, go out sap cavity 33 and prolong pipe 32 and be communicated with filter chamber 39.Said exhaust gas filter pipe 3 is installed on the bottom of dropping funnel 1 inner chamber, and it prolongs the inner chamber that pipe 32 inserts the incoming end 11 of dropping funnel 1, and 4 in conduit inserts the inner chamber that prolongs pipe 32; Making exhaust gas filter pipe 3 prolong pipe 32 via it is communicated with conduit 4; Wherein, said filter membrane 35 1 sides are communicated with dropping funnel 1 inner chamber, and the liquid inlet of exhaust gas filter pipe 3 is a filter membrane 35; Liquid outlet is for prolonging pipe 32, and conduit 4 inserts the inner chamber that prolongs pipe 32 and is communicated with exhaust gas filter pipe 3.
Wherein, longitudinal center's line position of dropper 21 is set to depart from the longitudinal centre line of dropping funnel 1.
Wherein, Exhaust gas filter pipe 3 is provided with one perpendicular to the circular baffle plate 30 that prolongs pipe 32; Particular location is prolonging the base portion that pipe 32 is connected with the main body except that prolonging pipe 32 of exhaust gas filter pipe 3; Promptly prolong the connecting portion of pipe 32 and the main body of exhaust gas filter pipe 3, circular baffle plate 30 diameters equal or slightly greater than the diameter of dropping funnel 1 intracavity bottom.
Wherein, the side that said filter membrane 35 is communicated with dropping funnel 1 inner chamber is coated with a protecting cover 38, and its perisporium and exhaust gas filter pipe 3 join.
Multiple-effect transfusion device as shown in Figure 2; This transfusion device comprises dropping funnel 1, dropping funnel lid 2, dropper 21, exhaust gas filter pipe 3 and conduit 4, and it is 2 one-body molded and be communicated with that said dropper 21 and dropping funnel cover, and the bottom outside of said dropping funnel 1 is extended an incoming end 11; Wherein, Exhaust gas filter pipe 3 is made up of the assembly that comprises top 31, prolongation pipe 32, filter membrane 35, base plate 36 and a plate 37, and filter membrane 35 vertically is installed on the exhaust gas filter pipe 3, and the top 31 of exhaust gas filter pipe 3 is sealed; Its closure at least vertically covers vertical filter membrane 35; The top 31 of exhaust gas filter pipe 3 constitutes a cavity with filter membrane 35 and base plate 36, and this cavity is divided into filter chamber 39 and is gone out sap cavity 33 by a plate 37, filter membrane 35, filter chamber 39 and to go out sap cavity 33 side by side vertical.Saidly go out sap cavity 33 and be communicated with by being positioned at both vertical fluid osculums 34, go out sap cavity 33 and prolong pipe 32 and be communicated with filter chamber 39.Said exhaust gas filter pipe 3 is installed on the bottom of dropping funnel 1 inner chamber, and it prolongs the inner chamber that pipe 32 inserts the incoming end 11 of dropping funnel 1, and 4 in conduit inserts the inner chamber that prolongs pipe 32; Making exhaust gas filter pipe 3 prolong pipe 32 via it is communicated with conduit 4; Wherein, said filter membrane 35 1 sides are communicated with dropping funnel 1 inner chamber, and the liquid inlet of exhaust gas filter pipe 3 is a filter membrane 35; Liquid outlet is for prolonging pipe 32, and conduit 4 inserts the inner chamber that prolongs pipe 32 and is communicated with exhaust gas filter pipe 3.
Wherein, longitudinal center's line position of dropper 21 is set to depart from the longitudinal centre line of dropping funnel 1.
Wherein, Exhaust gas filter pipe 3 is provided with one perpendicular to the circular baffle plate 30 that prolongs pipe 32; Particular location is prolonging the base portion that pipe 32 is connected with the main body except that prolonging pipe 32 of exhaust gas filter pipe 3; Promptly prolong the connecting portion of pipe 32 and the main body of exhaust gas filter pipe 3, circular baffle plate 30 diameters equal or slightly greater than the diameter of dropping funnel 1 intracavity bottom.
On the said structure basis; Be provided with one be connected in a plate 37 upper ends support bar 371; Filter membrane 35 covers and closely welds with the contact surface of support bar 371; By support bar 371 filter membrane 35 by being divided into filter membrane 351 and play filter membrane 352, and be provided with the through hole 372 of at least one connection filter chamber 39 in the support bar 371.
Multiple-effect transfusion device as shown in Figure 3; This transfusion device comprises dropping funnel 1, dropping funnel lid 2, dropper 21, exhaust gas filter pipe 3 and conduit 4, and it is 2 one-body molded and be communicated with that said dropper 21 and dropping funnel cover, and the bottom outside of said dropping funnel 1 is extended an incoming end 11; Wherein, Exhaust gas filter pipe 3 is made up of the assembly that comprises top 31, prolongation pipe 32, filter membrane 35, base plate 36 and a plate 37, and filter membrane 35 vertically is installed on the exhaust gas filter pipe 3, and the top 31 of exhaust gas filter pipe 3 is sealed; Its closure at least vertically covers vertical filter membrane 35; The top 31 of exhaust gas filter pipe 3 constitutes a cavity with filter membrane 35 and base plate 36, and this cavity is divided into filter chamber 39 and is gone out sap cavity 33 by a plate 37, filter membrane 35, filter chamber 39 and to go out sap cavity 33 side by side vertical.Saidly go out sap cavity 33 and be communicated with by being positioned at both vertical fluid osculums 34, go out sap cavity 33 and prolong pipe 32 and be communicated with filter chamber 39.Said exhaust gas filter pipe 3 is installed on the bottom of dropping funnel 1 inner chamber, and it prolongs the inner chamber that pipe 32 inserts the incoming end 11 of dropping funnel 1, and 4 in conduit inserts the inner chamber that prolongs pipe 32; Making exhaust gas filter pipe 3 prolong pipe 32 via it is communicated with conduit 4; Wherein, said filter membrane 35 1 sides are communicated with dropping funnel 1 inner chamber, and the liquid inlet of exhaust gas filter pipe 3 is a filter membrane 35; Liquid outlet is for prolonging pipe 32, and conduit 4 inserts the inner chamber that prolongs pipe 32 and is communicated with exhaust gas filter pipe 3.
Wherein, longitudinal center's line position of dropper 21 is set to depart from the longitudinal centre line of dropping funnel 1.
Wherein, Exhaust gas filter pipe 3 is provided with one perpendicular to the circular baffle plate 30 that prolongs pipe 32; Particular location is prolonging the base portion that pipe 32 is connected with the main body except that prolonging pipe 32 of exhaust gas filter pipe 3; Promptly prolong the connecting portion of pipe 32 and the main body of exhaust gas filter pipe 3, circular baffle plate 30 diameters equal or slightly greater than the diameter of dropping funnel 1 intracavity bottom.
On the said structure basis; On the said structure basis; The side that said filter membrane 35 is communicated with dropping funnel 1 inner chamber is coated with a protecting cover 38, its perisporium and exhaust gas filter pipe 3 close proximity, and protecting cover 38 is provided with three vertical gas-liquid cracks 381 that connect with filter membrane 35; Its width is between 0.6mm～0.7mm, and the wall end of the protecting cover 38 at its place is run through in said gas-liquid crack 381 to top.
Although technical scheme of the present invention is to describe with reference to specific embodiment, this description does not also mean that the present invention is constituted restriction.With reference to description of the invention, other of the disclosed embodiments change, and all can expect to those skilled in the art, and this variation should belong in the affiliated claim institute restricted portion.
Claims (12)
1. the multiple-effect transfusion device of automatic vent and solution stopping; Comprise dropping funnel (1), dropping funnel lid (2), dropper (21), exhaust gas filter pipe (3) and conduit (4), it is one-body molded and be communicated with that wherein dropper (21) and dropping funnel cover (2), and the bottom outside of dropping funnel (1) is extended an incoming end (11); Exhaust gas filter pipe (3) is by the assembly formation that comprises top (31), prolongs pipe (32), filter membrane (35), base plate (36) and a plate (37); Its top (31) constitutes a cavity with filter membrane (35) and base plate (36), and this cavity is divided into filter chamber (39) and is gone out sap cavity (33) by a plate (37), goes out sap cavity (33) and is communicated with prolongation pipe (32); The liquid inlet of said exhaust gas filter pipe (3) is filter membrane (35); Liquid outlet is for prolonging pipe (32), and wherein, said filter membrane (35) one sides are communicated with dropping funnel (1) inner chamber; It is a kind of bubble point value between 7.85kPa less than the liquid filtration medium between the 25.00kPa; It is characterized in that filter membrane (35) vertically is installed on the exhaust gas filter pipe (3), exhaust gas filter pipe (3) is installed on the bottom of dropping funnel (1) inner chamber and is communicated with conduit (4).
2. according to the multiple-effect transfusion device of said automatic vent of claim 1 and solution stopping; It is characterized in that; The filter membrane (35) on the said exhaust gas filter pipe (3) and the number of combinations of filter chamber (39) are one group or two or more sets, and combination form is vertical single face or two sides or polyhedron or cylinder.
3. according to the multiple-effect transfusion device of said automatic vent of claim 1 and solution stopping, it is characterized in that, saidly go out sap cavity (33) and be communicated with by being positioned at both vertical fluid osculums (34) with filter chamber (39).
4. according to the multiple-effect transfusion device of said automatic vent of claim 1 and solution stopping, it is characterized in that the top (31) of said exhaust gas filter pipe (3) is sealed, its closure at least vertically covers vertical filter membrane (35).
5. according to the multiple-effect transfusion device of said automatic vent of claim 1 and solution stopping, it is characterized in that the filter membrane (35) of said exhaust gas filter pipe (3), filter chamber (39) and to go out sap cavity (33) vertical side by side.
6. according to the multiple-effect transfusion device of said automatic vent of claim 1 and solution stopping, it is characterized in that the prolongation pipe (32) of exhaust gas filter pipe (3) inserts the incoming end (11) of dropping funnel (1) bottom.
7. according to the multiple-effect transfusion device of said automatic vent of claim 1 and solution stopping, it is characterized in that said exhaust gas filter pipe (3) is provided with the circular baffle plate (30) that (32) are managed in a vertical and prolongation prolonging base portion that pipe (32) is connected with the main body of exhaust gas filter pipe (3).
8. according to the multiple-effect transfusion device of said automatic vent of claim 1 and solution stopping, it is characterized in that said exhaust gas filter pipe (3) is to insert the inner chamber that prolongs pipe (32) by conduit (4) with being communicated with of conduit (4).
9. according to the multiple-effect transfusion device of said automatic vent of claim 1 and solution stopping, it is characterized in that longitudinal center's line position of one of them of said exhaust gas filter pipe (3) or dropper (21) is set to depart from the longitudinal centre line of dropping funnel (1).
10. according to the multiple-effect transfusion device of said automatic vent of claim 1 and solution stopping; It is characterized in that; The side that said filter membrane (35) is communicated with dropping funnel (1) but inner chamber is coated with the protecting cover (38) that a liquid free flow is crossed, its perisporium and airtight joining of exhaust gas filter pipe (3).
11., it is characterized in that said protecting cover (38) is provided with one or two or many vertical gas-liquid cracks (381) that connect with filter membrane 35 according to the multiple-effect transfusion device of claim 1 with 10 said automatic vents and solution stopping, its width is between between the 0.2mm to 1.0mm.
12. multiple-effect transfusion device according to said automatic vent of claim 1 and solution stopping; It is characterized in that; Said filter membrane (35) is divided into filter membrane (351) and following filter membrane (352) by the support bar (371) that is connected on the plate (37), is provided with the through hole (372) that at least one is communicated with filter chamber (39) in the support bar (371).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103437064A CN102363058A (en) | 2011-10-27 | 2011-10-27 | Automatic exhausting and liquid stopping multiple-effect infusion set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103437064A CN102363058A (en) | 2011-10-27 | 2011-10-27 | Automatic exhausting and liquid stopping multiple-effect infusion set |
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| Publication Number | Publication Date |
|---|---|
| CN102363058A true CN102363058A (en) | 2012-02-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103437064A Pending CN102363058A (en) | 2011-10-27 | 2011-10-27 | Automatic exhausting and liquid stopping multiple-effect infusion set |
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| CN (1) | CN102363058A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105194768A (en) * | 2015-11-02 | 2015-12-30 | 天津哈娜好兴达医用制品有限公司 | Filter drip chamber with automatic liquid stopping and automatic exhausting functions |
| CN107427628A (en) * | 2015-03-26 | 2017-12-01 | 贝克顿·迪金森公司 | Improved anti-desiccation film |
| CN107583132A (en) * | 2017-10-12 | 2018-01-16 | 湖北爱凯尔医疗科技有限公司 | Disposable automatic exhaust, only liquid, precision filter infusion set |
| CN107875474A (en) * | 2017-12-11 | 2018-04-06 | 湖北爱凯尔医疗科技有限公司 | Disposable diaphragm exhaust, tension force stop liquid light proofing infusion apparatus |
| CN109010999A (en) * | 2018-09-30 | 2018-12-18 | 北京伏尔特技术有限公司 | A kind of automatic liquid-stopping is vented dropping funnel and its application method automatically |
| EP3250256B1 (en) | 2015-01-27 | 2020-06-24 | Becton, Dickinson and Company | Air stop membrane for maintaining a fluid column in an iv set |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP3250256B1 (en) | 2015-01-27 | 2020-06-24 | Becton, Dickinson and Company | Air stop membrane for maintaining a fluid column in an iv set |
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| CN107583132A (en) * | 2017-10-12 | 2018-01-16 | 湖北爱凯尔医疗科技有限公司 | Disposable automatic exhaust, only liquid, precision filter infusion set |
| CN107875474A (en) * | 2017-12-11 | 2018-04-06 | 湖北爱凯尔医疗科技有限公司 | Disposable diaphragm exhaust, tension force stop liquid light proofing infusion apparatus |
| CN109010999A (en) * | 2018-09-30 | 2018-12-18 | 北京伏尔特技术有限公司 | A kind of automatic liquid-stopping is vented dropping funnel and its application method automatically |
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Application publication date: 20120229 |