CN202666115U - Automatic exhausting and blood return prevention infusion device - Google Patents
Automatic exhausting and blood return prevention infusion device Download PDFInfo
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- CN202666115U CN202666115U CN 201220042668 CN201220042668U CN202666115U CN 202666115 U CN202666115 U CN 202666115U CN 201220042668 CN201220042668 CN 201220042668 CN 201220042668 U CN201220042668 U CN 201220042668U CN 202666115 U CN202666115 U CN 202666115U
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Abstract
The utility model discloses an automatic exhausting and blood return prevention infusion device which comprises a bottle plug puncturing device, an upper infusion tube, a dripping funnel, a lower infusion tube, a blood return prevention liquid medicine filtering membrane, a flow regulator, a hollow sac tube, a liquid medicine filter, an outer cone joint, a thin infusion tube and an intravenous injection needle. The upper end of the dripping funnel is provided with an exhausting liquid inlet tube, and a liquid inlet tube, a deaerating tube, a first water-proof air filter and an injection inlet are arranged in the exhausting liquid inlet tube. An exhausting pipe is arranged in the dripping funnel, and the upper portion of the exhausting pipe is provided with an open hole or a groove. The blood return prevention liquid medicine filtering membrane is arranged in a position of a dripping funnel tube, and the position is between a two-third height of the dripping funnel tube and the lower infusion tube. The first water-proof air filter or a water-proof air filtering membrane is arranged on the hollow sac tube or the outer cone joint or the liquid medicine filter. The automatic exhausting and blood return prevention infusion device removes any manual operation relevant to exhausting in the operation process of an infusion device, and can prevent the phenomenon of blood return after dripping of infusion liquid is finished.
Description
[technical field]
This programme patent relates to disposable use medical Transfusion device, is particularly useful for automatic vent, blood return preventing infusion device.
[background technology]
Present blood return preventing infusion device automatic vent scheme is confined on the dropping funnel wall, or covers out an openning at dropping funnel, at openning a slice waterproof air-filtering membrane or an exhaust apparatus that is provided with waterproof air-filtering membrane and sealing plug is installed again.Although such design can realize dropping funnel automatically and very fast aerofluxus, also exists following defective.1, operation is simple not.The dropping funnel wall of blood return preventing infusion device or dropping funnel cover behind the exhaust apparatus of loading onto with waterproof air-filtering membrane, sealing plug, when the new infusion bottle of access, always need to open sealing-plug when aerofluxus at every turn, also need to close sealing-plug after aerofluxus finishes.2, easily make the dropping funnel forfeiture continue to observe the function of dripping speed.The transfusion device of a slice waterproof air-filtering membrane only is installed at the blood return prevention dropping funnel, if rocking or tilting appears in dropping funnel when using, the waterproof air-filtering membrane just easily is exposed to and makes dropping funnel automatically begin again aerofluxus on the liquid level, until the waterproof air filter film is flooded in upper transfusion of overflowing in the dropping funnel.The aerofluxus meeting makes transfusion water level rising in the dropping funnel, and the transfusion water level rises to certain limit will make dropping funnel can't observe a speed.This will make troubles to therapeutic process, also not meet the national standard of transfusion device.
In addition, the automatic blood return prevention scheme of this class transfusion device also all is confined in the bottom of dropping funnel a blood return prevention liquid medicine filtering membrane is installed.Although can reaching, such design deadens the effect that air enters lower tube for transfusion after transfusion is dripped to the greatest extent, but the blood return prevention liquid medicine filtering membrane can not stand vibration or significantly motion when ending liquid, can not stand the long-time unmanned test of disposing, otherwise the function that will make the forfeiture of blood return prevention liquid medicine filtering membrane end liquid causes lower tube for transfusion air inlet.Can produce thrombosis if enter in blood vessel after the interior air of lower tube for transfusion is inputted blood vessel with transfusion, this will work the mischief to human body.
[summary of the invention]
This programme proposes a kind of automatic vent and blood return preventing infusion device, and it can overcome above-mentioned automatic exhausting anti-blood backflow infusion apparatus deficiency in use, makes the more convenient to operate of transfusion device, safety.
This programme comprises bottle plug puncture unit, upper tubing, dropping funnel, the aerofluxus feed tube, the blood return prevention liquid medicine filtering membrane, exhaustor, lower tube for transfusion, flow regulator, outer cone joint, tiny tube for transfusion, intravenous needle, it is characterized in that: this aerofluxus feed tube is connected to the upper end of dropping funnel, and this aerofluxus feed tube is made of in a feed tube and a gas removing pipe that lower bottom part is interconnected both, wherein, described feed tube upper end is the feed liquor opening, feed liquor opening and upper tubing join, and the upper end of described gas removing pipe is provided with exhaust port or is provided with exhaust port at the sidewall that closes on the upper end, at exhaust port the first waterproof air filter is installed, some places the intracavity of described dropping funnel described aerofluxus feed tube, offer one or more transfusion input port in the part that places the dropping funnel intracavity of aerofluxus feed tube, described gas removing pipe and feed tube or all directly and dropping funnel join, perhaps described feed tube joins by described gas removing pipe and described dropping funnel; Be provided with the exhaustor with more than one open pore or open slot at the dropping funnel intracavity, exhaustor and dropping funnel join; The blood return prevention liquid medicine filtering membrane is made with liquid medicine filtering membrane by transfusion device, and the installation site is positioned at 2/3rds high places of dropping funnel pipe between the top of lower tube for transfusion; Tube for transfusion between lower tube for transfusion and outer cone joint arrange hollow capsule pipe that the second waterproof air filter is housed above one/or outside the case of cone joint be equipped with the second waterproof air filter/or outside the upper end of cone joint connect the precision liquid medicine filter with the second waterproof air filter; In described first and second waterproof air filter all with the waterproof air-filtering membrane; Described dropping funnel is made by plural part splicing.
As preferably: in the aerofluxus feed tube, described gas removing pipe is positioned at the periphery of described feed tube, described the first waterproof air filter is ring-type, and described feed tube joins by described gas removing pipe or by the first waterproof air filter of installing on the gas removing pipe and the upper cervical region of dropping funnel.
Further preferred: in the aerofluxus feed tube, described gas removing pipe is installed on the cover plate of dropping funnel lid, and the first waterproof air filter of installing on the gas removing pipe is arbitrary shape, and described feed tube upper cervical region direct and described dropping funnel joins.
Further preferred: described gas removing pipe is positioned at a side of described feed tube periphery, and the part of described feed tube periphery adds described gas removing pipe or joins by the part of the first waterproof air filter periphery of installing on the gas removing pipe and the upper cervical region of dropping funnel.
Further preferred: exhaustor uses plastic material to make, the opening of exhaustor upper end be positioned at the dropping funnel pipe high 1/2nd to 2/3rds between, the axis of exhaustor and the axis of dropping funnel match.
Further preferred: be provided with a flow-stopping plate above exhaustor, described flow-stopping plate is circular flat, and its diameter value is greater than the size value at open place on the cross section with opening of described exhaustor upper end.
Further preferred: the blood return prevention liquid medicine filtering membrane is arranged in the dropping funnel, and it and dropping funnel join or join with exhaustor.
Further preferred: the blood return prevention liquid medicine filtering membrane is arranged on the junction of dropping funnel and lower tube for transfusion, the hollow housing of blood return prevention liquid medicine filtering membrane is installed and dropping funnel joins or and the bottom of the exhaustor that extends out from the dropping funnel lower end join.
Further preferred: further preferred: described transfusion device mainly uses polypropylene or polrvinyl chloride or silica gel material to make.
Further preferred: as to the position between the outer cone joint chemical feed pipe to be set in the dropping funnel upper end.
Further preferred: described transfusion device is lucifuge color or colourless.
The beneficial effect of this programme: 1, saved any associated manual operations in the bleeding in each stage before and after the transfusion.A. present automatic exhausting anti-blood backflow infusion apparatus at exhaust apparatus with sealing-plug, although can save the trouble that finger pushes dropping funnel ventilation by automatic vent, but at every turn all must opening and closing sealing plug before and after the aerofluxus, and this programme all need not this kind operation before and after dropping funnel not only can automatic vent be removed the trouble of finger extruding dropping funnel but also aerofluxus from the time, any manual operations that also need not be relevant with dropping funnel ventilation; B, the automatic air that enters in the lower tube for transfusion of getting rid of also need not any relevant manual operationss.2, the generation of anti-return blood.After transfusion is dripped to the greatest extent, filtering holes internal adsorption on the blood return prevention liquid medicine filtering membrane has been expired liquid, because the effect of surface tension of liquid has the blood return prevention liquid medicine filtering membrane and can deaden the performance that air passes through, thereby make the fluid column in the lower tube for transfusion maintain constant height, prevented the generation of blood back.3, avoid air to enter human body, cause thrombosis.When making lower tube for transfusion air inlet for various reasons, the second waterproof air-filtering membrane that arranges in this programme can be removed the air of this part automatically, prevents that air from entering vein, causes thrombosis.4, the dropping funnel during aerofluxus is not afraid of knockdown.When dropping funnel tilts, liquid level in the dropping funnel or horizontal, so the distribution situation of transfusion is a side multiple spot for dropping funnel is just during vertical attitude in the dropping funnel, the few point of a side, but the transfusion regularity of distribution that is positioned at dropping funnel middle section position is just fewer the closer to central parameter.The air that is positioned on the transfusion because self-bleeding dropping funnel self-braking reason when aerofluxus is transfusion air vent flooded, so can't touch air vent.Because present automatic exhausting anti-blood backflow infusion apparatus all is confined at the dropping funnel outer wall waterproof air filter is installed, if dropping funnel under the knockdown state and this waterproof air filter be positioned under the inclination position up of dropping funnel and finishing aerofluxus, dropping funnel will because the amount of infusion that sucks too much, the air that is detained is very few and a function of dripping speed is observed in forfeiture.The lengthwise position of the opening that has on the exhaustor in the dropping funnel of this programme be arranged on the dropping funnel pipe high 1/2nd to 2/3rds between, the lateral attitude is arranged on the zone, axis of dropping funnel.When the dropping funnel knockdown, the transfusion changes in distribution value at the open pore place of exhaustor is little, so when dropping funnel stopped aerofluxus, the amount of infusion that sucks in the dropping funnel can be not too much, the air of delay can be not very few yet, therefore can not lose and observe the function of dripping speed.
[description of drawings]
Fig. 1 is the structural representation of a kind of automatic vent of this programme and blood return preventing infusion device embodiment one.
Fig. 2 is the structural representation of a kind of automatic vent of this programme and blood return preventing infusion device embodiment two.
Fig. 3 is the structural representation of a kind of automatic vent of this programme and blood return preventing infusion device embodiment three.
Fig. 4 is the structural representation of a kind of automatic vent of this programme and blood return preventing infusion device embodiment four.
Fig. 5 is the structural representation of a kind of automatic vent of this programme and blood return preventing infusion device embodiment five.
Fig. 6 is the structural representation of a kind of automatic vent of this programme and blood return preventing infusion device embodiment six.
[specific embodiment]
Embodiment one,
As shown in Figure 1 a kind of automatic vent and blood return preventing infusion device, bottle plug puncture unit 1 connects tube for transfusion 2, and the upper end of the feed tube 3A on the lower end of upper tubing 2 and the aerofluxus feed tube joins.The aerofluxus feed tube is made of at a feed tube 3A and a gas removing pipe 3B that lower bottom part is interconnected both.The upper end of feed tube 3A is the feed liquor opening, the upper end of gas removing pipe 3B or close on the upper end sidewall on one or more exhaust port is arranged.At exhaust port the first waterproof air filter 3C is installed, the first waterproof air-filtering membrane 3C-1 by waterproof air filtration film production is housed in it, the outside of the first waterproof air-filtering membrane 3C-1 has the chamber at intermittence of a gas flow that the confession effluxes, the outside in chamber has an outside jacket plates that the first waterproof air-filtering membrane 3C-1 is covered fully at intermittence, has one or more steam vent 3C-2 in outside jacket plates.Gas removing pipe 3B only links to each other at their position of going to the bottom with feed tube 3A, and whole air-discharge dropper forms a U font.Gas removing pipe 3B directly or by the part of upper the first waterproof air filter 3C shell installed of gas removing pipe 3B and the upper cover plate of dropping funnel lid 5B joins, and the upper cervical region of feed tube 3A and dropping funnel 5 joins.The part of aerofluxus feed tube places the intracavity of dropping funnel 5, offers one or more transfusion input port 3D in this part, transfusion input port 3D can towards or do not establish towards the sidewall of dropping funnel 5.
Establish exhaustor 4 in the dropping funnel 5, the axis of the axis of exhaustor 4 and dropping funnel 5 matches, the top of exhaustor 4, be positioned at dropping funnel 5 pipe high 1/2nd to 2/3rds between the position on side direction have one or more open pore or open slot 4A.A flow-stopping plate 4C is housed at the top of exhaustor 4, and flow-stopping plate 4C is circular, is formed by plastic production.Extend to form a ring plate 4B in exhaustor 4 lower, transverse, extend to form again a circle ring column downwards on the external edge edge of this ring plate 4B.This circle ring column joins near the position of base plate and the perisporium of dropping funnel 5 at dropping funnel 5.Blood return prevention liquid medicine filtering membrane 6 uses the common liquid medicine filtering membrane of thickening to make, the circle ring column that extends to form in exhaustor 4 bottoms is provided with an annular solid and blood return prevention liquid medicine filtering membrane 6 joins, and adopts method ultrasonic or heat seal or gummed that blood return prevention liquid medicine filtering membrane 6 is fitted on this annular solid closely when blood return prevention liquid medicine filtering membrane 6 is installed.The height of this circle ring column to guarantee to have between blood return prevention liquid medicine filtering membrane 6 and the exhaustor 4 one can supplied gas, the spatia of liquid flow.Between blood return prevention liquid medicine filtering membrane 6 and dropping funnel 5 base plates, also leave spatia.
The cervical region of lower tube for transfusion 7 and dropping funnel 5 lower ends joins, and at lower tube for transfusion 7 flow regulator 8 is installed, and the tube for transfusion below flow regulator 8 connects a hollow capsule pipe 13.Double second a waterproof air filter 9 ' of doing operculum is equipped with at the top of this hollow capsule pipe 13.The outermost of the second waterproof air filter 9 ' is provided with a Shell Plate 9D, be provided with the second waterproof air-filtering membrane 9 in the centre, in a side that deviates from intracavity of the second waterproof air-filtering membrane 9, between the second waterproof air-filtering membrane 9 and Shell Plate 9D, be provided with the mediastinum bar 9A of mutual perforation; Be provided with one or more air vent 9B at Shell Plate 9D; The part of joining at the second waterproof air-filtering membrane 9 and Shell Plate 9D is provided with an annular solid 9C.The second waterproof air-filtering membrane 9 makes it to fit tightly on annular solid 9C through ultrasonic or heat seal or gummed.Chemical feed pipe 14 of making of silica gel material of connection connects an outer cone joint 10 in the lower end of chemical feed pipe 14 below hollow capsule pipe 13.The tiny tube for transfusion 11 of the following connection of cone joint 10 outside, connection intravenous needle 12 below tiny tube for transfusion 11.
This transfusion device mainly uses silica gel material or polypropylene material, or the pvc material material is made.The tube for transfusion of this transfusion device is colourless or dark.
Operational approach:
Behind bottle plug puncture unit 1 access infusion bottle, transfusion constantly enters in the upper tubing 2 by bottle plug puncture unit 1, and the air in the upper tubing 2 constantly emits by the first waterproof air filter 3C on the gas removing pipe 3B in the aerofluxus feed tube of cervical region installation on the dropping funnel 5.Air in the upper tubing 2 is all got rid of the most at last, and infusing subsequently enters in the dropping funnel by the transfusion input port 3D on the aerofluxus feed tube.When entering dropping funnel, if the opening of transfusion input port 3D is towards the sidewall of dropping funnel 5, then transfusion is ejected into the lower end that is slipped to again dropping funnel 5 on the sidewall of dropping funnel 5, if the opening of transfusion entrance just drops onto the lower end that flows to again dropping funnel 5 on the flow-stopping plate 4C not towards sidewall.Splash on the flow-stopping plate 4C that is equipped with at dropping funnel 5 inside exhaust pipes 4 tops, flow to again on the ring plate 4B of exhaustor 4 bottoms.So just so that transfusion can directly not dripped air inlet-outlet pipe 4, avoid lower tube for transfusion 7 interior gas, the staggered phenomenons of fluid column of occurring.When transfusion splashed into, liquid level constantly rose, and the air in the dropping funnel 5 constantly is squeezed into open pore or the open slot 4A on exhaustor 4 tops, passes the 6 downward tube for transfusion 7 interior dischargings of blood return prevention liquid medicine filtering membrane.Enter an air part in the lower tube for transfusion 7 by open pore or groove 9B on the panel of the second waterproof air filter 9 ' of installing on hollow capsule pipe 13 operculums, discharge transfusion device.Another part hollow capsule pipe 13 of flowing through, outer cone joint 10, tiny tube for transfusion 11 are discharged transfusion devices from intravenous needle 12.When the open pore on liquid level and exhaustor 4 tops or open slot 4A maintained an equal level, liquid level no longer rose, and the air in the dropping funnel 5 finish discharging.Transfusion overflows into exhaustor 4 inside, and penetrates blood return prevention liquid medicine filtering membrane 6, enters in the lower tube for transfusion 7.After transfusion enters lower tube for transfusion 7, after full the 13 whole fillings of hollow capsule pipe, the second waterproof air filter 9 ' the just no longer aerofluxus on the hollow capsule pipe 13, lower tube for transfusion 7 interior remaining air just process intravenous needle 12 place are discharged transfusion device.After transfusion is gushed out from intravenous needle 12, close flow regulator 8, with intravenous needle 12 access veins, regulate flow regulator 8, begin transfusion.
After transfusion is dripped to the greatest extent, transfusion water level in the exhaustor 4 descends, air enters in the exhaustor 4, after transfusion drops to blood return prevention liquid medicine filtering membrane 6 places, expired transfusion because the filtering holes ophthalmic all adsorbs because the tension force that has of transfusion makes filtering holes be closed by transfusion, the air barrier in the dropping funnel 5 on blood return prevention liquid medicine filtering membrane 6, transfusion stops defeated downwards, the blood back phenomenon that has occured so therefore prevented 7 air inlets of time tube for transfusion.
During the new infusion bottle of changing-over, transfusion device is linked in the new infusion bottle, the first waterproof air filter 3C on the aerofluxus feed tube all drains the air in the upper tubing 2, under beginning, transfusion drips in the dropping funnel 5, after dripping to the greatest extent, upper one bottle of transfusion remains in the exhaustor 4, that part air that is positioned under the open pore on its top or the open slot 4A on the blood return prevention liquid medicine filtering membrane 6 can be constantly lower defeated and enter into lower tube for transfusion 7 along with transfusion, when air entered into hollow capsule pipe 13, air covered the air vent 9B of the second waterproof air filter 9 ' that is equipped with the Bas Discharged transfusion device by the capsule pipe.Transfusion enters the normal infusion state.
Embodiment two,
As shown in Figure 2 a kind of automatic vent and blood return preventing infusion device, bottle plug puncture unit 1 connects tube for transfusion 2, and the upper end of the feed tube 3A on the lower end of upper tubing 2 and the aerofluxus feed tube joins.The aerofluxus feed tube is made of at a feed tube 3A and a gas removing pipe 3B that lower bottom part is interconnected both.The upper end of feed tube 3A is the feed liquor opening, the upper end of gas removing pipe 3B or close on the upper end sidewall on one or more exhaust port is arranged.At exhaust port the first waterproof air filter 3C is installed, the first waterproof air-filtering membrane 3C-1 by waterproof air filtration film production is housed in it, the outside of the first waterproof air-filtering membrane 3C-1 has the chamber at intermittence of a gas flow that the confession effluxes, the outside in chamber has an outside jacket plates that the first waterproof air-filtering membrane 3C-1 is covered fully at intermittence, has one or more steam vent 3C-2 in outside jacket plates.Gas removing pipe 3B only links to each other at their position of going to the bottom with feed tube 3A, whole air-discharge dropper forms a U font, gas removing pipe 3B directly or by the part of upper the first waterproof air filter 3C shell installed of gas removing pipe 3B and the upper top of dropping funnel 5 joins, and the upper cervical region of feed tube 3A and dropping funnel 5 joins.The part of aerofluxus feed tube places the intracavity of dropping funnel 5, offers one or more transfusion input port 3D in this part, and transfusion input port 3D establishes towards the sidewall of dropping funnel 5.
Blood return prevention liquid medicine filtering membrane 6 uses the common liquid medicine filtering membrane of thickening to make, it joins with dropping funnel 5 by an annular solid extending to form on the dropping funnel holder 5A, and blood return prevention liquid medicine filtering membrane 6 uses method ultrasonic or heat seal or gummed that it is fitted on this annular solid closely, has a spatia between the base plate of blood return prevention liquid medicine filtering membrane 6 and dropping funnel 5.The top of blood return prevention liquid medicine filtering membrane 6 is provided with the exhaustor 4 that a duroplasts is made, the axis of the axis of exhaustor 4 and dropping funnel 5 matches, the top of exhaustor 4, side direction has one or more open pore or open slot 4A on 1/2nd to 2/3rds the high position of dropping funnel 5 pipes being positioned at, lower, transverse at it extends to form a ring plate 4B, the external edge edge of this ring plate 4B is to circle ring column of downward-extension, but the height of circle ring column will guarantee to have supplied gas between blood return prevention liquid medicine filtering membrane 6 and the ring plate 4B, the spatia of liquid flow.The circle ring column that exhaustor 4 bottoms extend to form also is connected on that annular flat body that blood return prevention liquid medicine filtering membrane 6 is installed, the installation site is positioned at the outside that blood return prevention liquid medicine filtering membrane 6 positions are installed, and the circle ring column that extends upward again formation from the annular solid that they are installed of being separated by between the circle ring column that extends to form in exhaustor 4 bottoms and the blood return prevention liquid medicine filtering membrane 6.Between the lower end of the inwall of dropping funnel 5 and circle ring column that exhaustor 4 bottoms extend to form, set up again a circle ring column that extends upward formation from dropping funnel holder 5A.
The cervical region of lower tube for transfusion 7 and dropping funnel holder 5A joins, and at lower tube for transfusion 7 flow regulator 8 is installed, and the tube for transfusion below flow regulator 8 connects a hollow capsule pipe 13, and the sidepiece of this hollow capsule pipe 13 is equipped with the second waterproof air-filtering membrane 9.The side towards intracavity at the second waterproof air-filtering membrane 9, be provided with an annular solid 9C in the joint of the second waterproof air-filtering membrane 9 and hollow capsule pipe 13, the second waterproof air-filtering membrane 9 makes it to fit tightly on annular solid 9C by method ultrasonic or heat seal or gummed.Be provided with the non-woven fabrics 9D that is complex as a whole with the second waterproof air-filtering membrane 9 in a side that deviates from intracavity.Connect a chemical feed pipe 14 of making of silica gel material in the lower end of hollow capsule pipe 13, lower end at chemical feed pipe 14 connects an outer cone joint 10, the tiny tube for transfusion 11 of the following connection of cone joint 10 outside, connection intravenous needle 12 below tiny tube for transfusion 11.
This transfusion device mainly uses silica gel material or polypropylene material, or the pvc material material is made.The tube for transfusion of this transfusion device is colourless or dark.
Operational approach:
Behind bottle plug puncture unit 1 access infusion bottle, the nozzle 3A of the lateral type of installing on the aerofluxus feed tube bottom that the transfusion in the infusion bottle is equipped with by dropping funnel lid 5B cervical region is sprayed onto first on dropping funnel 5 inwalls, flows on the planar annular of exhaustor 4 bottoms again.Make so the transfusion in dropping funnel 5 inner accumulated can not produce because transfusion drip speed is too fast bubble, thereby avoided time tube for transfusion 7 interior gas, the staggered phenomenons of fluid column of occurring.
Its all the other usings method are all identical with embodiment one.
Embodiment three,
As shown in Figure 3 a kind of automatic vent and blood return preventing infusion device, bottle plug puncture unit 1 connects tube for transfusion 2, and the upper end of the feed tube 3A on the lower end of upper tubing 2 and the aerofluxus feed tube joins.The aerofluxus feed tube is made of at a feed tube 3A and a gas removing pipe 3B that lower bottom part is interconnected both.The upper end of feed tube 3A is the feed liquor opening, the upper end of gas removing pipe 3B or close on the upper end sidewall on one or more exhaust port is arranged.At exhaust port the first waterproof air filter 3C is installed, the first waterproof air-filtering membrane 3C-1 by waterproof air filtration film production is housed in it, the outside of the first waterproof air-filtering membrane 3C-1 has the chamber at intermittence of a gas flow that the confession effluxes, the outside in chamber has an outside jacket plates that the first waterproof air-filtering membrane 3C-1 is covered fully at intermittence, has one or more steam vent 3C-2 in outside jacket plates.Gas removing pipe 3B only links to each other at their position of going to the bottom with feed tube 3A, and whole air-discharge dropper forms a U font.Gas removing pipe 3B directly or by the part of upper the first waterproof air filter 3C shell installed of gas removing pipe 3B and the upper cover plate of dropping funnel lid 5B joins, and the upper cervical region of feed tube 3A and dropping funnel 5 joins.The part of aerofluxus feed tube places the intracavity of dropping funnel 5, offers one or more transfusion input port 3D in this part, and transfusion input port 3D establishes towards the sidewall of dropping funnel 5.
Be provided with an exhaustor 4 of being made by duroplasts in the dropping funnel 5, the axis of its axis and dropping funnel 5 matches.Exhaustor 4 top seals, upper side are to being provided with one or more open pore 4A or open slot 4A, the position of this open pore or open slot 4A be positioned at dropping funnel 5 pipes high 1/2nd to 2/3rds between.
The cervical region of exhaustor 4 bottoms and dropping funnel holder 5A joins and to downward-extension, stretches out behind the dropping funnel 5 again that horizontal expansion forms a planar annular, connects a hollow housing 6 ' under this planar annular, and blood return prevention liquid medicine filtering membrane 6 is installed in the hollow housing 6 '.At blood return prevention liquid medicine filtering membrane 6 and hollow housing 6 ' joint an annular solid is set.Blood return prevention liquid medicine filtering membrane 6 adopts method ultrasonic or heat seal or gummed that it is fitted on this annular solid closely, and the up and down both sides of blood return prevention liquid medicine filtering membrane 6 all have the spatia of supplied gas, liquid flow.Blood return prevention liquid medicine filtering membrane 6 uses precision medical filtration film production.The cervical region of hollow housing 6 ' lower end and lower tube for transfusion 7 join.
At lower tube for transfusion 7 flow regulator 8 is installed.Tube for transfusion below flow regulator 8 connects a chemical feed pipe 14 of making of silica gel material, connection outer cone joint 10 below chemical feed pipe 14, the top of cone joint 10 is that a double upper encloser of doing uses the second waterproof air filter 9 ' outside.In the second waterproof air filter 9 ', side that deviates from intracavity at the second waterproof air-filtering membrane 9, be provided with an annular solid in the housing of the second waterproof air-filtering membrane 9 and the second waterproof air filter 9 ' part of joining, the second waterproof air-filtering membrane 9 fits tightly on annular solid through ultrasonic or heat seal or gummed; Be provided with a panel 9D who does the outer casing of the second waterproof air filter 9 ' on the top of annular solid, be provided with one or more air vent 9B at this panel 9D; Under this panel 9D to the mediastinum bar 9A that is provided with mutual perforation between the second waterproof air-filtering membrane 9.Lower tube for transfusion 7 be provided with bottom an outer cone joint 10, the tiny tube for transfusion 11 of the following connection of cone joint 10 connects intravenous needle 12 11 of tiny tube for transfusions outside.
This transfusion device mainly uses silica gel material or polypropylene material, or the pvc material material is made.The tube for transfusion of this transfusion device is colourless or dark.
Using method is identical with embodiment two.
Embodiment four,
As shown in Figure 4 a kind of automatic vent and blood return preventing infusion device, bottle plug puncture unit 1 connects tube for transfusion 2, and the upper end of the feed tube 3A on the lower end of upper tubing 2 and the aerofluxus feed tube joins.The aerofluxus feed tube is made of at a feed tube 3A and a gas removing pipe 3B that lower bottom part is interconnected both.The upper end of feed tube 3A is the feed liquor opening, the upper end of gas removing pipe 3B or close on the upper end the position be provided with one or more exhaust port.At exhaust port the first waterproof air filter 3C is installed, the the first waterproof air-filtering membrane 3C-1 that is made by the waterproof air-filtering membrane is housed in it, the outside of the first waterproof air-filtering membrane 3C-1 has the chamber at intermittence of a gas flow that the confession effluxes, the outside in chamber has an outside jacket plates that the first waterproof air-filtering membrane 3C-1 is covered fully at intermittence, is provided with one or more steam vent 3C-2 in outside jacket plates.Gas removing pipe 3B is positioned at a side of feed tube 3A periphery, the the first waterproof air filter 3C that installs on it is crescent shape, the part of gas removing pipe 3B directly or by the part of upper the first waterproof air filter 3C shell installed of gas removing pipe 3B and the upper cervical region of dropping funnel 5 is joined, and feed tube 3A adds that by the part from body the part of shell of the part of gas removing pipe 3B or upper the first waterproof air filter 3C that installs of gas removing pipe 3B and the upper cervical region of dropping funnel 5 join.The part of aerofluxus feed tube places the intracavity of dropping funnel 5, offers one or more transfusion input port 3D in this part, and transfusion input port 3D establishes towards the sidewall of dropping funnel 5.
Top at the dropping funnel lid is provided with a chemical feed pipe 14 that silica gel sheath has been installed in the above.The bottom of dropping funnel 5 is provided with the dropping funnel holder 5A that is made by duroplasts.Be provided with an exhaustor 4 of being made by duroplasts in the dropping funnel 5, the cervical region of it and dropping funnel holder 5A joins, and the axis of its axis and dropping funnel 5 matches.Be provided with one or more open pore or open slot 4A at exhaustor 4, the position of this open pore or open slot 4A be positioned at dropping funnel 5 pipe high 1/2nd to 2/3rds between.
Connect a hollow housing 6 ' below the cervical region of dropping funnel holder 5A, blood return prevention liquid medicine filtering membrane 6 is installed in the hollow housing 6 ', blood return prevention liquid medicine filtering membrane 6 uses the common liquid medicine filtering membrane of thickening to make.The spatia that all has supplied gas, liquid flow in the upper and lower both sides of blood return prevention liquid medicine filtering membrane 6.Be provided with an annular solid at hollow housing 6 ', and join with it and blood return prevention liquid medicine filtering membrane 6, use method ultrasonic or heat seal or gummed that blood return prevention liquid medicine filtering membrane 6 is fitted on this annular solid closely when blood return prevention liquid medicine filtering membrane 6 is installed.Hollow housing 6 ' lower, neck end and lower tube for transfusion 7 join.
The cervical region of lower tube for transfusion 7 and hollow housing 6 ' lower end joins, at lower tube for transfusion 7 flow regulator 8 is installed, tube for transfusion below flow regulator 8 connects hollow capsule pipe 13, the following connection outer cone joint 10 of hollow capsule pipe 13, the tiny tube for transfusion 11 of the following connection of cone joint 10 outside, connection intravenous needle 12 below tiny tube for transfusion 11.
This transfusion device mainly uses silica gel material or polypropylene material, or the pvc material material is made.The tube for transfusion of this transfusion device is colourless or dark.
Operational approach
It and embodiment two difference in use are: when lower tube for transfusion air inlet, gas enter hollow capsule pipe 13 interior after, gas will be trapped in the top of hollow capsule pipe 13 always.Because the second waterproof air-filtering membrane 9 or the second waterproof air filter 9 ' are not installed on the hollow capsule pipe 13.
Remaining using method is all identical.
Embodiment five,
As shown in Figure 5 a kind of automatic vent and blood return preventing infusion device, bottle plug puncture unit 1 connects tube for transfusion 2, and the upper end of the feed tube 3A on the lower end of upper tubing 2 and the aerofluxus feed tube joins.The aerofluxus feed tube is made of at a feed tube 3A and a gas removing pipe 3B that lower bottom part is interconnected both.The upper end of feed tube 3A is the feed liquor opening, the upper end of gas removing pipe 3B or close on the upper end the position be provided with one or more exhaust port.At exhaust port the first waterproof air filter 3C is installed, the the first waterproof air-filtering membrane 3C-1 that is made by the waterproof air-filtering membrane is housed in it, the outside of the first waterproof air-filtering membrane 3C-1 has the chamber at intermittence of a gas flow that the confession effluxes, the outside in chamber has an outside jacket plates that the first waterproof air-filtering membrane 3C-1 is covered fully at intermittence, is provided with one or more steam vent 3C-2 in outside jacket plates.Gas removing pipe 3B is positioned at a side of feed tube 3A periphery, the the first waterproof air filter 3C that installs on it is crescent shape, the part of gas removing pipe 3B directly or by the part of upper the first waterproof air filter 3C shell installed of gas removing pipe 3B and the upper cervical region of dropping funnel 5 is joined, and feed tube 3A adds that by the part from body the part of shell of the part of gas removing pipe 3B or upper the first waterproof air filter 3C that installs of gas removing pipe 3B and the upper cervical region of dropping funnel 5 join.The part of aerofluxus feed tube places the intracavity of dropping funnel 5, offers one or more transfusion input port 3D in this part, transfusion input port 3D can towards or do not establish towards the sidewall of dropping funnel 5.
Top at the dropping funnel lid is provided with a chemical feed pipe 14 that silica gel sheath has been installed in the above.Dropping funnel 5 bottoms are provided with the dropping funnel holder 5A that is made by duroplasts.Exhaustor 4 upper lateral extend to form a planar annular, form a circle ring column from the external edge of planar annular along extending upward again.Circle ring column inside is provided with an annular solid and blood return prevention liquid medicine filtering membrane 6 joins, and uses method ultrasonic or heat seal that blood return prevention liquid medicine filtering membrane 6 is attached on the annular solid closely when blood return prevention liquid medicine filtering membrane 6 is installed.Blood return prevention liquid medicine filtering membrane 6 uses the common liquid medicine filtering membrane of thickening to make, but supplied gas, liquid flow between the ring plate 4B that the height of circle ring column will be guaranteed laterally to extend to form on blood return prevention liquid medicine filtering membrane 6 and the exhaustor 4.The outside of the circle ring column that blood return prevention liquid medicine filtering membrane 6 is installed install one place blood return prevention liquid medicine filtering membrane 6 directly over flow-stopping plate 4C, flow-stopping plate 4C is circular, its Area Ratio is installed the cross section of the circle ring column of blood return prevention liquid medicine filtering membrane 6 and is wanted large, and the position side on blood return prevention liquid medicine filtering membrane 6 is to leaving one or more open pore or open slot 4A.The cervical region of the bottom of exhaustor 4 and dropping funnel holder 5A joins.Exhaustor 4 is made by duroplasts, and the axis of its axis and dropping funnel 5 matches.The position of the open pore that exhaustor 4 is provided with or open slot 4A be positioned at dropping funnel 5 pipe high 1/2nd to 2/3rds between.
The cervical region of lower tube for transfusion 7 and dropping funnel 5 lower ends joins, and at lower tube for transfusion 7 flow regulator 8 is installed, lower tube for transfusion 7 be provided with bottom an outer cone joint 10, a slice the second waterproof air-filtering membrane 9 is installed on the upper encloser of cone joint 10 outside.The side towards intracavity at the second waterproof air-filtering membrane 9 is provided with an annular solid in the junction with outer cone joint 10, and it is fitted on the annular solid closely by method ultrasonic or heat seal or gummed.Be provided with the non-woven fabrics 9D that one deck and the second waterproof air-filtering membrane 9 are complex as a whole in a side of outer cone joint 10 intracavity dorsad.
This transfusion device mainly uses silica gel material or polypropylene material, or the pvc material material is made.The tube for transfusion of this transfusion device is colourless or dark.
Operational approach:
It with in use different of embodiment one is, when the new infusion bottle of changing-over, after transfusion is dripped to the greatest extent, lower tube for transfusion 7 can air inlet, because the upper end of blood return prevention liquid medicine filtering membrane 6 is exactly the minimum point of open pore or the open slot 4A on exhaustor 4 tops, the open pore on the liquid level of the transfusion of accumulating in dropping funnel 5 and exhaustor 4 tops or the minimum point on the open slot 4A maintain an equal level, so after again connecing infusion bottle, the position on the blood return prevention liquid medicine filtering membrane 6 does not have air will be discharged in the lower tube for transfusion 7.
Embodiment six,
As shown in Figure 6 a kind of automatic vent and blood return preventing infusion device, bottle plug puncture unit 1 connects upper tubing 2, and the upper end of the feed tube 3A on the lower end of upper tubing 2 and the aerofluxus feed tube joins.The aerofluxus feed tube is made of at a feed tube 3A and a gas removing pipe 3B that lower bottom part is interconnected both.The upper end of feed tube 3A is the feed liquor opening, the upper end of gas removing pipe 3B or close on the upper end sidewall on one or more exhaust port is arranged.At exhaust port the first waterproof air filter 3C is installed, the the first waterproof air-filtering membrane 3C-1 that is made by the waterproof air-filtering membrane is housed in it, the chamber at intermittence that has a gas flow that the confession effluxes in the outside of the first waterproof air-filtering membrane 3C-1, the outside in chamber has an outside jacket plates that the first waterproof air-filtering membrane 3C-1 is covered fully at intermittence, has one or more steam vent 3C-2 in outside jacket plates.Gas removing pipe 3B is positioned at the periphery of feed tube 3A, the the first waterproof air filter 3C that installs on it is ring-type, gas removing pipe 3B directly or by the shell of the first waterproof air filter 3C of installation and the upper cervical region of dropping funnel 5 on it joins, and feed tube 3A joins by gas removing pipe 3B or by the shell of upper the first waterproof air filter 3C that installs of gas removing pipe 3B and the upper cervical region of dropping funnel 5.The part of aerofluxus feed tube places the intracavity of dropping funnel 5, offers one or more transfusion input port 3D on this part again, transfusion input port 3D can towards/or do not establish towards the sidewall of dropping funnel 5.
Be provided with a chemical feed pipe 14 that silica gel sheath has been installed in the above in the outside of dropping funnel side wall upper part.Dropping funnel 5 bottoms are provided with the dropping funnel holder 5A that is made by duroplasts.Cervical region in dropping funnel 5 upper ends is equipped with an aerofluxus feed tube of being made by duroplasts.The bottom end seal of aerofluxus feed tube, side direction are provided with one or more open pore 3A or open slot 3A.Exhaustor 4 upper end horizontal expansions form a planar annular, form a circle ring column from the external edge of planar annular along extending upward again.Circle ring column inside is provided with an annular solid and blood return prevention liquid medicine filtering membrane 6 joins, and uses method ultrasonic or heat seal or gummed that blood return prevention liquid medicine filtering membrane 6 is fitted on this annular solid closely when blood return prevention liquid medicine filtering membrane 6 is installed.Blood return prevention liquid medicine filtering membrane 6 uses precision medical filtration film production.But supplied gas, liquid flow between the ring plate 4B that the height of circle ring column will be guaranteed laterally to extend to form on blood return prevention liquid medicine filtering membrane 6 and the exhaustor 4.The outside of the circle ring column that blood return prevention liquid medicine filtering membrane 6 is installed install one place blood return prevention liquid medicine filtering membrane 6 directly over flow-stopping plate 4C, flow-stopping plate 4C is circular, its Area Ratio is installed the cross section of the circle ring column of blood return prevention liquid medicine filtering membrane 6 and is wanted large, and the position side on blood return prevention liquid medicine filtering membrane 6 is to leaving one or more open pore or open slot 4A.The cervical region of the bottom of exhaustor 4 and dropping funnel holder 5A joins.Exhaustor 4 is made by duroplasts, and the axis of its axis and dropping funnel 5 matches.Open pore on the exhaustor 4 or open slot 4A be located at dropping funnel 5 pipe high 1/2nd to 2/3rds between.
The cervical region of lower tube for transfusion 7 and dropping funnel holder 5A joins, at lower tube for transfusion 7 flow regulator 8 is installed, tube for transfusion below flow regulator 8 connects a precision liquid medicine filter 13 ', at precision liquid medicine filter 13 ' shell plates one or more air vent 9B is set, a slice the second waterproof air-filtering membrane 9 is installed below air vent 9B, between the shell plates of the second waterproof air-filtering membrane 9 and precision liquid medicine filter 13 ', is had the spatia that supplied gas flows.The spatia that supplied gas, liquid flow are also arranged between the second waterproof air-filtering membrane 9 and precision liquid medicine filtering membrane.The second waterproof air-filtering membrane 9 uses heat seal or gummed or ultrasonic method to make it to be fitted in closely on the shell plates of precision liquid medicine filter 13 '.Chemical feed pipe 14 of making of silica gel material of connection below the precision liquid medicine filtering membrane, connection outer cone joint 10 below chemical feed pipe 14, the tiny tube for transfusion 11 of the following connection of cone joint 10 outside, connection intravenous needle 12 below tiny tube for transfusion 11.
This transfusion device mainly uses silica gel material or polypropylene material, or the pvc material material is made.The tube for transfusion of this transfusion device is colourless or dark.
Operational approach is identical with embodiment five.
Annotate: each above-mentioned embodiment is just to the explanation of content described in this programme claims, rather than to the restriction of content described in claims.
Claims (10)
1. an automatic vent and blood return preventing infusion device comprise bottle plug puncture unit (1), upper tubing (2), dropping funnel (5), aerofluxus feed tube (3), blood return prevention liquid medicine filtering membrane (6), exhaustor (4), lower tube for transfusion (7), flow regulator (8), outer cone joint (10), tiny tube for transfusion (11), intravenous needle (12), it is characterized in that: this aerofluxus feed tube (3) is connected to the upper end of dropping funnel (5), this aerofluxus feed tube (3) is made of in a feed tube (3A) and a gas removing pipe (3B) that lower bottom part is interconnected both, wherein, described feed tube (3A) upper end is the feed liquor opening, feed liquor opening and upper tubing (2) join, the upper end of described gas removing pipe (3B) is provided with exhaust port or is provided with exhaust port at the sidewall that closes on the upper end, at exhaust port the first waterproof air filter (3C) is installed, some places the intracavity of described dropping funnel (5) described aerofluxus feed tube (3), the part that places dropping funnel (5) intracavity at aerofluxus feed tube (3) is offered one or more transfusion input port (3D), described gas removing pipe (3B) and feed tube (3A) or all directly and dropping funnel (5) join, perhaps described feed tube (3A) joins by described gas removing pipe (3B) and described dropping funnel (5); Be provided with the exhaustor (4) with more than one open pore or open slot (4A) at dropping funnel (5) intracavity, exhaustor (4) and dropping funnel (5) join; Blood return prevention liquid medicine filtering membrane (6) is made with liquid medicine filtering membrane by transfusion device, and the installation site is positioned at 2/3rds high places of dropping funnel (5) pipe between the top of lower tube for transfusion (7); Tube for transfusion between lower tube for transfusion (7) and outer cone joint (10) arrange hollow capsule pipe (13) that the second waterproof air filter (9 ') is housed above one/or outside the case of cone joint (10) be equipped with the second waterproof air filter (9 ')/or outside the upper end of cone joint (10) connect the precision liquid medicine filter (13 ') with the second waterproof air filter (9 '); In described first and second waterproof air filter all with the waterproof air-filtering membrane; Described dropping funnel (5) is made by plural part splicing.
2. a kind of automatic vent as claimed in claim 1 and blood return preventing infusion device, it is characterized in that: in the aerofluxus feed tube (3), described gas removing pipe (3B) is positioned at the periphery of described feed tube (3A), described the first waterproof air filter (3C) is ring-type, and described feed tube (3A) joins by described gas removing pipe (3B) or by upper the first waterproof air filter (3C) installed of gas removing pipe (3B) and the upper cervical region of dropping funnel (5).
3. a kind of automatic vent as claimed in claim 1 and blood return preventing infusion device, it is characterized in that: in the aerofluxus feed tube (3), described gas removing pipe (3B) is installed on the cover plate of dropping funnel (5) lid, upper the first waterproof air filter (3C) installed of gas removing pipe (3B) is crescent shape, and the upper cervical region of the direct and described dropping funnel of described feed tube (3A) (5) joins.
4. a kind of automatic vent as claimed in claim 1 and blood return preventing infusion device, it is characterized in that: described gas removing pipe (3B) is positioned at the peripheral side of described feed tube (3A), and the peripheral part of described feed tube (3A) adds described gas removing pipe (3B) or joins by the part of upper the first waterproof air filter (3C) periphery of installing of gas removing pipe (3B) and the upper cervical region of dropping funnel (5).
5. a kind of automatic vent as claimed in claim 1 and blood return preventing infusion device, it is characterized in that: exhaustor (4) uses plastic material to make, the opening of exhaustor (4) upper end be positioned at dropping funnel (5) pipe high 1/2nd to 2/3rds between, the axis of the axis of exhaustor (4) and dropping funnel (5) matches.
6. a kind of automatic vent as claimed in claim 1 and blood return preventing infusion device, it is characterized in that: be provided with a flow-stopping plate (4C) in exhaustor (4) top, described flow-stopping plate (4C) is circular flat, and its diameter value is greater than the size value at open place on the cross section with opening of described exhaustor (4) upper end.
7. a kind of automatic vent as claimed in claim 1 and blood return preventing infusion device, it is characterized in that: blood return prevention liquid medicine filtering membrane (6) is arranged in the dropping funnel (5), it and dropping funnel (5) join or and exhaustor (4) join.
8. a kind of automatic vent as claimed in claim 1 and blood return preventing infusion device, it is characterized in that: blood return prevention liquid medicine filtering membrane (6) is arranged on the junction of dropping funnel (5) and lower tube for transfusion (7), the hollow housing (6 ') of blood return prevention liquid medicine filtering membrane (6) is installed and dropping funnel (5) joins or and the bottom of the exhaustor (4) that extends out from dropping funnel (5) lower end join.
9. a kind of automatic vent as claimed in claim 1 and blood return preventing infusion device is characterized in that: further preferred: described transfusion device mainly uses polypropylene or polrvinyl chloride or silica gel material to make, and the color that it mainly adopts is lucifuge color or colourless.
10. a kind of automatic vent as claimed in claim 1 and blood return preventing infusion device is characterized in that: to the position between the outer cone joint (10) chemical feed pipe (14) is set in dropping funnel (5) upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220042668 CN202666115U (en) | 2012-02-01 | 2012-02-01 | Automatic exhausting and blood return prevention infusion device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220042668 CN202666115U (en) | 2012-02-01 | 2012-02-01 | Automatic exhausting and blood return prevention infusion device |
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| CN202666115U true CN202666115U (en) | 2013-01-16 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103272300A (en) * | 2013-05-23 | 2013-09-04 | 贾宇东 | Infusion safety degassing insurance system structure |
| CN105107050A (en) * | 2015-05-26 | 2015-12-02 | 戎静华 | Anticoagulation liquid-stop transfusion device with micro-flow hole |
-
2012
- 2012-02-01 CN CN 201220042668 patent/CN202666115U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103272300A (en) * | 2013-05-23 | 2013-09-04 | 贾宇东 | Infusion safety degassing insurance system structure |
| CN105107050A (en) * | 2015-05-26 | 2015-12-02 | 戎静华 | Anticoagulation liquid-stop transfusion device with micro-flow hole |
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