CN104941024A - Automatic air-exhaust liquid-stopping anti-coagulation transfusion device with speed measuring tube - Google Patents
Automatic air-exhaust liquid-stopping anti-coagulation transfusion device with speed measuring tube Download PDFInfo
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- CN104941024A CN104941024A CN201510383440.4A CN201510383440A CN104941024A CN 104941024 A CN104941024 A CN 104941024A CN 201510383440 A CN201510383440 A CN 201510383440A CN 104941024 A CN104941024 A CN 104941024A
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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
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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
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16804—Flow controllers
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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
- A61M5/36—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 with means for eliminating or preventing injection or infusion of air into body
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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
- A61M2005/1401—Functional features
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- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Emergency Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses an automatic air-exhaust liquid-stopping anti-coagulation transfusion device with a speed measuring tube. The automatic air-exhaust liquid-stopping anti-coagulation transfusion device with the speed measuring tube comprises a bottle plug penetrating device, an upper transfusion tube, a dropping tube, a dropping hopper, a lower transfusion tube, flow regulators, an outer cone connector, a capillary transfusion tube, a side wing and an intravenous injection needle. The automatic air-exhaust liquid-stopping anti-coagulation transfusion device with the speed measuring tube is characterized in that an air exhaust tube is arranged in the dropping hopper, an air exhaust hole of the upper end of the air exhaust tube is located in the upper middle portion of the dropping hopper, a liquid guiding hole is formed in the lower portion of the dropping hopper, a liquid guiding tube is connected under the liquid guiding hole, the first flow regulator is installed on the liquid guiding tube, the speed measuring tube is connected to the liquid guiding tube, and the liquid guiding tube is further connected with an upper sealing cover of a liquid stopping medicine liquid filter. By means of the automatic air-exhaust liquid-stopping anti-coagulation transfusion device with the speed measuring tube, the automatic air exhaust, the automatic liquid level control, the automatic liquid stopping and the automatic prevention on sludged blood on the intravenous injection needle position after liquid stopping of the transfusion can be achieved, and the waste caused by the fact that the transfusion liquid in the dropping hopper is not all transfused when the liquid is stopped and a nurse deals with a transfusion apparatus quickly can also be avoided. In addition, transfusion apparatus manufacturing enterprises can manufacture products reaching the function requirement without the adoption of various high-precision manufacturing equipment, so that the production cost is reduced.
Description
[affiliated field]
The present invention relates to a kind of only liquid transfusion device, particularly relate to anticoagulant only liquid transfusion device.
[background technology]
Most only liquid transfusion device is after stopping liquid at present, intravenous needle place is just passed in vein under not infusing again, count thenceforth, if after common patient experiences dozens of minutes again, or the critical patient of Coagulation Dysfunction experiences tens minutes again, after the time of even a few minutes, just all can there is sludged blood at intravenous needle place.In order to overcome above-mentioned defect, so have employed using with the addition of the dropping funnel of exhaustor as reservoir, a guiding fluid hole is established in dropping funnel bottom, below guiding fluid hole, connect an other end be connected to the drainage tube stopped on liquid liquid medicine filter upper cover, in interval between the adapter mouth of guiding fluid hole to the only connection drainage tube of liquid liquid medicine filter upper cover, or a miniflow metering-orifice/miniflow buret is set, or arrange flow control valve/Flow-rate adjustment folder/flow prescription dosage regulating device that has the function that infusion flow rate can be exchanged from miniflow to non-miniflow.Although they can make transfusion device after stopping liquid, be passed to intravenous under making intravenous needle place still have the transfusion of trace to continue, to avoid intravenous needle place that sludged blood occurs, cause thrombosis.But use miniflow metering-orifice, miniflow buret, as flow control device, one, easily cause transfusion waste, two, in use also easily limited.Because it can only flow control, valve opening can not be realized and release, can not stream be adjusted.If only after liquid, nurse just processes only liquid transfusion device at once, and the major part transfusion so in dropping funnel will because of cannot defeatedly make transfusion cause waste to the greatest extent.In addition.Because it can not valve opening be released, so, transfusion originally in dropping funnel can not at once by defeated most, if front latter two infusion syrup is mutual antagonism, or other toxic and side effects can be produced, so not defeated to the greatest extent after, stay mutual mixing, by just defeated mixture to the greatest extent of longer time, be inappropriate.Because most medicine is all Organic substance, organic chemical reaction is not generally producing instantaneously, needs the regular hour, so the mixing of long period, touches easier chemical reaction occurs than the phase hybrid junction of section short period.So have employed miniflow metering-orifice, miniflow buret, as the transfusion device of microfluidic control method, is just in use restricted.
Exchange folder for use traffic in addition, flow exchanges valve, miniflow metering-orifice, miniflow buret, and they are when making, it is desirable that high-precision mould-opening equipment, and high-precision injection machine, extruding machine, bench.Because with common mould-opening equipment, common injection machine, extruding machine, the product that bench is made, after parts molding, deviation 0.1mm is normal deviation ratio, and these require high-precision product for us, if after flow control position there occurs the dimensional discrepancy of 0.1mm, so drip speed will from tens seconds one, become several seconds one, or a few minutes one.If a few second one, so within one or two minutes all defeated for the transfusion in reservoir most, so just will cannot utilize the transfusion stored in dropping funnel, the lasting transfusion supplementing micrometeor to vein, such anticoagulant stops liquid transfusion device, does not just reach anticoagulant function.And if use high-accuracy mould, high-accuracy injection moulding, extrusion molding, bench, then for the manufacturing enterprise manufacturing general infusion set, purchase technology high-end again again, expensive new equipment, because common transfusion device always is with common die sinking, injection moulding, extrusion molding, pipe drawing device is produced.If adopt flow regulator as flow control part, the various production equipments of general precision can also be continued to use.But the pitot tube of Observable flow velocity is not set in design above, so make flow regulator very ignorant in operation, do not know oneself is what grade of flow velocity furnishing, because the pulley on flow regulator one rolls a little, drip speed and just became tens seconds from several seconds that often drip.So the micro-flow velocity just making employing flow regulator regulate and control transfusion only becomes an imagination, there is not operability.
[summary of the invention]
In order to overcome the above-mentioned deficiency of only liquid anticoagulant transfusion, the present invention proposes a kind of automatic vent with pitot tube and stops liquid anticoagulant transfusion device, it can make transfusion device automatic liquid-stopping, automatic vent avoid intravenous needle place because of till the liquid time long and blood coagulation occurs, avoid the only liquid time short and make the transfusion in reservoir defeatedly can not cause waste to the greatest extent, flow velocity can be seen intuitively again when regulating and controlling miniflow, avoid operating ignorant and making transfusion device lose the anticoagulant functions of intravenous needle when stopping liquid, and the various production equipments of the existing general precision that also do not need in process of production to upgrade.
Automatic vent with pitot tube stops a liquid anticoagulant transfusion device, and it comprises, bottle plug puncture unit, upper tubing, dropper, dropping funnel, lower tube for transfusion, flow regulator, outer cone joint, capillary tube for transfusion, flank, intravenous needle, is characterized in that: stretch to dropping funnel intracavity at the lower cervical region plug-in mounting one of dropping funnel, two ends are provided with the hollow air discharge pipe of opening, are provided with steam vent in the upper end of described exhaustor sidewall; A guiding fluid hole is set in dropping funnel bottom, stretch out in the periphery of described guiding fluid hole formation adapter mouth---the-the first convex pipe, first convex pipe connects a drainage tube, described drainage tube installs a first flow actuator, and the lower end of described drainage tube is connected on the convex pipe of adapter mouth-----second that only liquid liquid medicine filter top is provided with; Connect a pitot tube in interval between described first convex pipe to the second convex pipe, described only liquid liquid medicine filter is located at below described dropping funnel, and the upper cover of described only liquid liquid medicine filter is provided with water repellant air filter.
As preferably: stretch to dropping funnel intracavity at the lower cervical region plug-in mounting one of dropping funnel, two ends are provided with the exhaustor of the hollow of opening, and the sidewall upper of described exhaustor has a steam vent; The upper bottom surface of exhaustor is the drain slope arranged towards the direction deviating from described steam vent; In the edge on drain slope being positioned at described that side of steam vent, the shelves stream plate of a block length shape is extended to form towards the direction deviating from drain slope, the edge of described shelves stream plate both sides lets droop and described steam vent is covered on the inside, shelves flow the position of lowest part lower than described steam vent place exhaustor on edges of boards edge, the sidewall of the shelves stream edge of plate the inner and the drain slope of exhaustor or exhaustor connects, in the orthographic projection of its horizontal direction, its widest position is no more than the diameter of exhaustor.
Further preferably: the main body of described microscler shelves stream plate or by the dual-side of a block length strip along the parallel and surface plate put with form from its dual-side along the plate that hangs down respectively towards downward two pieces of drains of stretching out, or be made up of a circle hat annulated column, or the triangle frame annulated column of the isosceles on base is not had to form by one.
Further preferably: upwards extend to form a protruding shelves stream bar at that end of the close dropping funnel of described microscler shelves stream plate.
Further preferably: on described pitot tube cervical region have one downward convex have a certain length drip speed pipe, when the length of described fast pipe setting will be guaranteed to infuse only can by drip fast pipe lower of lower port and can not along the upper wall landing of pitot tube or drippage; The distance set between described fast pipe lateral wall and the medial wall of pitot tube, when guarantee to infuse only can by drip fast pipe lower of lower port and can not along the sidewall landing of pitot tube; Drip the distance set between lower curtate under fast infratubal port and pitot tube, guarantee to observe that transfusion is all that a complete transfusion is dripping row downwards when falling.
Preferred further: the lower shoe of described pitot tube stops the part in liquid liquid medicine filter upper cover, and described lower shoe is a hole, establish an individual perforate to make pitot tube and stop liquid liquid medicine filter to connect at the end, hole.
Further preferably: described pitot tube has the transparency, can distinguish the boundary of liquid and air clearly.
Further preferably: the steam vent of described exhaustor upper end is positioned at the middle and upper part of dropping funnel.
Automatic vent before beneficial effect 1, transfusion, the liquid level in automatic control dropping funnel, transfusion terminates rear automatic liquid-stopping.When infusing after dropping funnel, on the next top dropping to exhaustor and flow-stopping plate, drop to again bottom dropping funnel, and gather to cause on liquid level bottom dropping funnel and lift, air is made to be forced to automatically discharge from the steam vent of exhaustor upper end, when liquid level rises to the steam vent of exhaustor upper end, aerofluxus stops automatically, and the liquid level in dropping funnel rests on this height automatically.Drip to the greatest extent in transfusion, the tension force that only liquid film can utilize the transfusion of adsorbing in fenestra to be formed deadens air and enters lower tube for transfusion, makes transfusion liquid level maintain constant height, forms the transfusion hydraulic pressure overcoming vein pressure, prevent blood reflux in tube for transfusion.
2, can after stopping liquid, prevent intravenous needle place from sludged blood occurring.Only after liquid, the miniflow flow velocity that transfusion in reservoir recalls because of first flow actuator, make it by guiding fluid hole, drainage tube slowly continue defeated downwards with the speed of miniflow, guarantee to make intravenous needle place have transfusion to be passed in vein within the longer time always, after preventing common patient time after stopping liquid partially long, or high solidifying patient stops in the liquid time at intravenous needle place formation sludged blood shorter.
3, transfusion waste is avoided.Only after liquid, transfusion in reservoir exports in the mode of miniflow, if after stopping liquid soon, medical personnel just process transfusion device, so in reservoir, most transfusion does not all export, as long as at this moment operate first flow actuator, flow velocity is tuned up, just can within one or two minutes by defeated most for these transfusions.
4, production cost is reduced.Original transfusion device manufacturer does not need the existing common die sinking of upgrading, injection moulding, extrusion molding, pipe drawing device, after going out first flow actuator and pitot tube, installs, is connected on drainage tube with the device fabrication of old edition general precision.Just carry out flow by the visuality of pitot tube to first flow speed regulator to exchange and arrange, overcome other micro-fluidic speed variators and high-accuracy equipment must be used just to produce guarantee the product of precision quality.Under the prerequisite of realization that ensure that miniflow function, do not need again to purchase high accuracy, expensive new equipment.Because high-accuracy mould-opening equipment, injection moulding, high several times to tens times of the cost ratio conventional equipment of extrusion molding, so reduce cost of manufacture.
[accompanying drawing explanation]
Fig. 1 is the diagram one that a kind of automatic vent with pitot tube of the present invention stops liquid anticoagulant transfusion device.
Fig. 2 is the diagram two that a kind of automatic vent with pitot tube of the present invention stops liquid anticoagulant transfusion device.
[detailed description of the invention]
Embodiment one,
As shown in Figure 1 be the center longitudinal section that a kind of automatic vent with pitot tube stops liquid anticoagulant transfusion device, bottle plug puncture unit 1 connects upper tubing 2, and upper tubing 2 connects dropper 3, and dropper 3 is connected with dropping funnel lid 15A.
Stretch to dropping funnel 15 intracavity at the lower cervical region plug-in mounting one of dropping funnel 15, two ends are provided with opening, the exhaustor 5 of inner hollow, and the sidewall upper of exhaustor 5 has a steam vent 4C, the position of steam vent 4C be located at dropping funnel pipe high 1/2 ~ 2/3 between.The upper bottom surface of exhaustor 5 is the drain slopes 4 arranged towards the direction deviating from described steam vent 4C.In the edge on drain slope 4 being positioned at that side of steam vent 4C, extend to form the shelves stream plate 4A of a block length shape towards the direction deviating from drain slope 4.Microscler shelves stream plate 4A is by the dual-side of a block length strip along parallel and the surface plate put and the plate that hangs down from its dual-side along or triangle drain rectangular respectively towards downward two pieces of stretching out are formed, and the hang down edge of plate and the sidewall of exhaustor 5 of drain connects.Drain hangs down the lowest part on edges of boards edge lower than the position of steam vent 4C place exhaustor 5, makes shelves stream plate 4A steam vent 4C be covered on the inside.In whole shelves stream plate 4A orthographic projection in the horizontal direction, its widest position is no more than the diameter of exhaustor 5, and shelves stream plate 4A outer end upwards extends to form a protruding shelves stream bar 4B.
From dropping funnel 15 collets, a guiding fluid hole 6 is set.On the outer wall of dropping funnel 15, stretch out in the periphery of guiding fluid hole 6 formation convex pipe 6B of adapter mouth------first, connects a drainage tube 6A outward at the first convex pipe 6B.
Be connected to lower tube for transfusion 9 in dropping funnel 15 lower end, be connected to only liquid liquid medicine filter 7 in the middle and upper part of lower tube for transfusion 9.The upper cover of only liquid liquid medicine filter 7 is equipped with water repellant air filter 8, in the cavity of only liquid liquid medicine filter 7, adopts the method for ultra-sonic welded to be welded with only liquid liquid medicine filtering membrane 7A.
Manage an outer installation first flow actuator 10A at drainage tube 6A, connect the upper cervical region of pitot tube 7C at the end of drainage tube 6A.The bottom of pitot tube 7C is connected on the convex pipe 6C of adapter mouth-----second that only liquid liquid medicine filter 7 upper cover extends to form.The lower shoe of pitot tube 7C stops the part in liquid liquid medicine filter 7 upper cover, and the lower shoe of pitot tube 7C is an inverted taper, and cone end central authorities establish a perforate to make pitot tube 7C and stop liquid liquid medicine filter 7 and connect.
On pitot tube 7C, fast pipe 7D is dripped to being formed in tube chamber, to downward-extension 1cm in the lower end of cervical region, the lateral wall of dripping fast pipe 7D to pitot tube 7C medial wall between distance have 0.8cm, the diameter interior diameter that the vertical dimension between droplet fast pipe 7D lower ending opening place to the perforate on lower shoe is not less than 2cm. perforate is 2cm.
Flow regulator 10 is equipped with outside the pipe of lower tube for transfusion 9 bottom, outer cone joint 11 is connect bottom at lower tube for transfusion 9, be connected with capillary tube for transfusion 12 below cone joint 11 outside, be connected with flank 13 in capillary tube for transfusion 12 lower end, be connected with intravenous needle 14 in flank 13 lower end.
Using method:
After bottle plug puncture unit 1 and infusion bottle connect, infuse and enter in dropping funnel 15 by bottle plug puncture unit 1, upper tubing 2, dropper 3, then drop on the drain slope 4 of exhaustor 5 upper end.The transfusion major part fallen on drain slope 4 follows the most labour-saving characteristics of motion, the lower end flowing to and exhaustor 5 has been fallen dropping funnel 15 is again climbed downwards along drain slope 4, only have a small amount of transfusion due to crowded and upwards drive in the wrong direction climb flow to shelves stream plate 4A surface plate on, climb downwards again and flow to drain and hang down on plate, finally drop to dropping funnel 15 lower end.The transfusion dropping to dropping funnel 15 lower end, constantly in dropping funnel 15 inner accumulated, causes the lifting of liquid level, gas is constantly passed through in dropping funnel 15 the exhaustor 5 interior row of tube for transfusion 9 downwards.When the steam vent 4C of liquid level and exhaustor 5 upper end flushes, the gas in dropping funnel 15 drains.Transfusion is input to downwards by exhaustor 5 and stops in liquid liquid medicine filter 7, contaminates wet by the only liquid liquid medicine filtering membrane 7A in it.Remain in the air stopped in liquid liquid medicine filter 7 subsequently outwards to arrange by stopping the water repellant air filter 8 that liquid liquid medicine filter 7 upper cover is installed, until all eliminatings with regard to whole.
Along with constantly pouring in of transfusion, enter the transfusion stopped in liquid liquid medicine filter 7 defeated through stopping in the downward tube for transfusion of liquid liquid medicine filtering membrane 7A 9, flow through flow regulator 10, outer cone joint 11, capillary tube for transfusion 12, intravenous needle 14, finally gush from intravenous needle 14 syringe needle, so close flow regulator 10 at once, connect vein, mix up flow regulator 10, transfusion starts.The speed of dripping of then passing through to observe pitot tube 7C manipulates first flow actuator 10A, a velocity modulation is become the speed of about one per minute.
When the transfusion in infusion bottle is dripped to the greatest extent, transfusion liquid level in tube for transfusion constantly declines, when liquid level is down to the position of only liquid liquid medicine filtering membrane 7A, the tension force that the transfusion of adsorbing in fenestra is formed just has deadened air and has entered into lower tube for transfusion 9, make transfusion liquid level maintain constant height, transfusion device starts to enter into only liquid status.Till cause, liquid liquid medicine filter 7 is positioned at the middle and upper part of lower tube for transfusion 9, so make infusion pressure overcome the pressure of vein, blood can not be backflowed in tube for transfusion, avoid meeting with the static minute bubbles that adsorb on tube for transfusion tube wall and forming sludged blood.
After only liquid starts, the position of liquid liquid medicine filtering membrane the 7A to end although liquid level in tube for transfusion declines, but because have the existence of exhaustor 5 in dropping funnel 15, and the steam vent 4C of exhaustor 5 upper end is positioned at the middle and upper part of dropping funnel 15, so also remain the transfusion of more than half dropping funnel in dropping funnel 15.According to national standard, the minimum outer volume of dropping funnel 15 can not be less than 10 milliliters, so this part residual transfusion can more than 4 milliliters.Because drainage tube 6A is positioned at the below of dropping funnel 15, so make infusion device for potential energy, again because the first flow actuator 10A be nested with outside drainage tube 6A is in micrometeor state, just can the transfusion remained in dropping funnel 15 slowly so be arranged on guiding fluid hole 6 on dropping funnel 15 lower shoe, continue, carry in drainage tube 6A automatically.Because be filled with transfusion in drainage tube 6A, as long as so one has transfusion to be input in drainage tube 6A, the fast pipe 7D lower end port that drips at once on pitot tube 7C just there will be the transfusion of spilling, and often logically just can form one after one minute and to drip the transfusion fallen.After on the lower shoe that the transfusion of falling is dropped in pitot tube 7C, by being passed under the perforate of cheating the end only in liquid liquid medicine filter 7.Infuse with under such speed defeated to last till in dropping funnel 15 always debris defeated to the greatest extent after just can terminate.All transfusions dropped onto in only liquid liquid medicine filter 7 can continue synchronized defeated downwards, finally all have passed intravenous needle 14 and are input in vein, so during this period of time would not make intravenous needle 14 place that sludged blood occurs.
The only liquid limit that till cause, liquid liquid medicine filter 7 is general only has dozens of minutes, because when stopping the liquid-sheet disintegration of the transfusion formation of adsorbing in liquid liquid medicine filtering membrane 7A fenestra, only liquid just stopped.Because within the time of these hours, can have transfusion being added dropwise to only on liquid liquid medicine filtering membrane 7A slowly, so when the residual transfusion in dropping funnel 15 is dripped most, only the liquid time of stopping of liquid liquid medicine filtering membrane 7A can also extend several hours always.
If just only liquid has just had nurse to process transfusion device because first flow actuator 10A the flow velocity furnishing of being infused by part defeated under drainage tube miniflow, so only had small part to be gone by lower output by the residual transfusion that exhaustor 5 is retained down in dropping funnel 15.In order to avoid the waste of transfusion, as long as before pulling out transfusion device, the flow of first flow actuator 10A is exchanged into non-micrometeor from micrometeor, just can make the residual transfusion in dropping funnel 15 within one or two minute just by lower totally defeated.Avoid the waste of transfusion.
Embodiment two
As shown in Figure 2 be the center longitudinal section that a kind of automatic vent with pitot tube stops liquid anticoagulant transfusion device, bottle plug puncture unit 1 connects upper tubing 2, and upper tubing 2 connects dropper 3, and dropper 3 is connected with dropping funnel lid 15A.
Stretch to dropping funnel 15 intracavity at the lower cervical region plug-in mounting one of dropping funnel 15, two ends are provided with opening, the exhaustor 5 of inner hollow, and the sidewall upper of exhaustor 5 has a steam vent 4C, the position of steam vent 4C be located at dropping funnel pipe high 1/2 ~ 2/3 between.The upper bottom surface of exhaustor 5 is the drain slopes 4 arranged towards the direction deviating from described steam vent 4C.In the edge on drain slope 4 being positioned at that side of steam vent 4C, extend to form the shelves stream plate 4A of a block length shape towards the direction deviating from drain slope 4.Microscler shelves stream plate 4A is by the dual-side of a block length strip along parallel and the surface plate put and the plate that hangs down from its dual-side along or triangle drain rectangular respectively towards downward two pieces of stretching out are formed, and the hang down edge of plate and the sidewall of exhaustor 5 of drain connects.Drain hangs down the lowest part on edges of boards edge lower than the position of steam vent 4C place exhaustor 5, makes shelves stream plate 4A steam vent 4C be covered on the inside.In whole shelves stream plate 4A orthographic projection in the horizontal direction, its widest position is no more than the diameter of exhaustor 5, and shelves stream plate 4A outer end upwards extends to form a protruding shelves stream bar 4B.
From dropping funnel 15 collets, a guiding fluid hole 6 is set.On the outer wall of dropping funnel 15, stretch out in the periphery of guiding fluid hole 6 formation convex pipe 6B of adapter mouth-----first, connects a drainage tube 6A outward at the first convex pipe 6B.
Be connected to lower tube for transfusion 9 in dropping funnel 15 lower end, be connected to only liquid liquid medicine filter 7 in the middle and upper part of lower tube for transfusion 9.The upper cover of only liquid liquid medicine filter 7 is equipped with water repellant air filter 8, in the cavity of only liquid liquid medicine filter 7, adopts the method for ultra-sonic welded to be welded with only liquid liquid medicine filtering membrane 7A.
Manage an outer installation first flow actuator 10A at drainage tube 6A, connect the upper cervical region of pitot tube 7C at the end of drainage tube 6A.The lower cervical region of pitot tube 7C is connected on the convex pipe 6C of adapter mouth-----second that only liquid liquid medicine filter 7 upper cover is provided with.
On pitot tube 7C cervical region lower end in tube chamber, to downward-extension 1cm formed internal diameter 2.0 drip fast pipe 7D, the lateral wall of dripping fast pipe 7D to pitot tube 7C medial wall between distance have 0.8cm, droplet fast pipe 7D lower ending opening place is not less than 2cm to the vertical dimension of lower cervical region.
Flow regulator 10 is equipped with outside the pipe of lower tube for transfusion 9 bottom, outer cone joint 11 is connect bottom at lower tube for transfusion 9, be connected with capillary tube for transfusion 12 below cone joint 11 outside, be connected with flank 13 in capillary tube for transfusion 12 lower end, be connected with intravenous needle 14 in flank 13 lower end.
Claims (8)
1. the automatic vent with pitot tube stops liquid anticoagulant transfusion device, it comprises, bottle plug puncture unit (1), upper tubing (2), dropper (3), dropping funnel (15), lower tube for transfusion (5), flow regulator (10), outer cone joint (11), capillary tube for transfusion (12), flank (13), intravenous needle (14), it is characterized in that: stretch to dropping funnel (15) intracavity at the lower cervical region plug-in mounting one of dropping funnel (15), two ends are provided with the hollow air discharge pipe (5) of opening, steam vent (4C) is provided with in the upper end of described exhaustor (5) sidewall, a guiding fluid hole (6) is set in dropping funnel (15) bottom, stretch out in the periphery of described guiding fluid hole (6) formation adapter mouth---the first convex pipe (6B), first convex pipe (6B) connects a drainage tube (6A), the upper installation first flow actuator (10A) of described drainage tube (6A), the lower end of described drainage tube (6A) is connected on the convex pipe of the adapter mouth-----second (6C) that only liquid liquid medicine filter (7) top is provided with, a pitot tube (7C) is connected in interval between described first convex pipe (6B) to the second convex pipe (6C), described only liquid liquid medicine filter (7) is located at below described dropping funnel (15), and the upper cover of described only liquid liquid medicine filter (7) is provided with water repellant air filter (8).
2. a kind of automatic vent with pitot tube stops liquid anticoagulant transfusion device as claimed in claim 1, it is characterized in that: stretch to dropping funnel (15) intracavity at the lower cervical region plug-in mounting one of dropping funnel (15), two ends are provided with the exhaustor (5) of the hollow of opening, and the sidewall upper of described exhaustor (5) has a steam vent (4C), the upper bottom surface of exhaustor (5) is the drain slope (4) arranged towards the direction deviating from described steam vent (4C), in the edge on drain slope (4) being positioned at described steam vent (4C) that side, the shelves stream plate of a block length shape is extended to form towards the direction deviating from drain slope (4), the edge of described shelves stream plate both sides lets droop and described steam vent (4C) is covered on the inside, shelves flow the position of lowest part lower than described steam vent (4C) place exhaustor (5) on edges of boards edge, the sidewall of the shelves stream edge of plate the inner and the drain slope (4) of exhaustor (5) or exhaustor (5) connects, in the orthographic projection of its horizontal direction, its the widest position is no more than the diameter of exhaustor (5).
3. a kind of automatic vent with pitot tube stops liquid anticoagulant transfusion device as claimed in claim 2, it is characterized in that: the main body of described microscler shelves stream plate or by the dual-side of a block length strip along the parallel and surface plate put with form from its dual-side along the plate that hangs down respectively towards downward two pieces of drains of stretching out, or be made up of a circle hat annulated column, or the triangle frame annulated column of the isosceles on base is not had to form by one.
4. a kind of automatic vent with pitot tube stops liquid anticoagulant transfusion device as claimed in claim 2, it is characterized in that: upwards extend to form a protruding shelves stream plate (4B) at that end of the close dropping funnel (15) of described microscler shelves stream plate.
5. a kind of automatic vent with pitot tube stops liquid anticoagulant transfusion device as claimed in claim 1, it is characterized in that: the upper cervical region of described pitot tube (7C) have one downward convex have a certain length drip speed pipe (7D), when the length that described speed pipe (7D) sets will guarantee that transfusion is got off only can by drip speed pipe (7D) lower of lower port and can not along the upper wall landing of pitot tube (7C) or drippage; The distance that sets between described speed pipe (7D) lateral wall and the medial wall of pitot tube (7C), when guarantee that transfusion is got off only can by drip speed pipe (7D) lower of lower port and can not along the sidewall landing of pitot tube (7C); The distance set between lower curtate under dripping speed pipe (7D) lower port and pitot tube (7C), guarantee to observe that transfusion is all that a complete transfusion is dripping row downwards when falling.
6. a kind of automatic vent with pitot tube stops liquid anticoagulant transfusion device as claimed in claim 1, it is characterized in that: the lower shoe of described pitot tube (7C) stops the part in liquid liquid medicine filter (7) upper cover, described lower shoe is a hole, establishes a perforate to make pitot tube (7C) and stop liquid liquid medicine filter (7) to connect at the end, hole.
7. a kind of automatic vent with pitot tube stops liquid anticoagulant transfusion device as claimed in claim 1, it is characterized in that: described pitot tube (7C) has the transparency, can distinguish the boundary of liquid and air clearly.
8. a kind of automatic vent with pitot tube stops liquid anticoagulant transfusion device as claimed in claim 1, it is characterized in that: the steam vent (4C) of described exhaustor (5) upper end is positioned at the middle and upper part of dropping funnel (15).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510383440.4A CN104941024A (en) | 2015-06-27 | 2015-06-27 | Automatic air-exhaust liquid-stopping anti-coagulation transfusion device with speed measuring tube |
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| CN201510383440.4A CN104941024A (en) | 2015-06-27 | 2015-06-27 | Automatic air-exhaust liquid-stopping anti-coagulation transfusion device with speed measuring tube |
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| CN104941024A true CN104941024A (en) | 2015-09-30 |
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| CN201510383440.4A Pending CN104941024A (en) | 2015-06-27 | 2015-06-27 | Automatic air-exhaust liquid-stopping anti-coagulation transfusion device with speed measuring tube |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108969843A (en) * | 2018-06-14 | 2018-12-11 | 南京市妇幼保健院 | A kind of adjustable multimedium infusion dropping speed regulator |
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