CN103272313A - Filter with blood return preventing time controllable on medical infusion set and medical infusion set - Google Patents
Filter with blood return preventing time controllable on medical infusion set and medical infusion set Download PDFInfo
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- CN103272313A CN103272313A CN2013102055108A CN201310205510A CN103272313A CN 103272313 A CN103272313 A CN 103272313A CN 2013102055108 A CN2013102055108 A CN 2013102055108A CN 201310205510 A CN201310205510 A CN 201310205510A CN 103272313 A CN103272313 A CN 103272313A
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Abstract
The invention discloses a filter with blood return preventing time controllable on a medical infusion set and a medical infusion set. The filter comprises a barrel body with two communicated ends and a liquid stopping type filtering membrane dividing the inner cavity of the barrel body into an upper portion and a lower portion, the filter further comprises a water storage tank, the water storage tank is fixedly arranged on the upper half portion of the inner cavity of the barrel body, at least one through hole is formed in the water storage tank, each through hole is connected with a flow control plug in a clamping mode to form a clearance, at least one permeable filtering membrane layer is sleeved on the flow control plug, and the permeable filtering membrane is in close fit with the through holes through the flow control plug. The filter has the functions of preventing no dripping and preventing backflow, can guarantee that residual medicine liquid in the water storage tank has enough time to drip slowly through the clearances when the medical infusion set will complete infusion, the venous pressure generated in the blood spread of the human body is overcome, the fact that the medical infusion set has enough preparation time to prevent blood return in an infusion process is guaranteed, and the time of preventing the blood return is made to be capable of being controlled.
Description
Technical field
The present invention relates to controlled filter and the medical Transfusion device of blood return prevention time on a kind of medical Transfusion device.
Background technology
The liquid medicine filter of existing transfusion device has two kinds, a kind of is the filter of disposable infusion set, this is directly to filter, upper connecting tube is perpendicular to filter cover, and lower linking tube generally is placed on the place ahead of the intravenous needle of transfusion device perpendicular to the filter lower cover, can only filter the microgranule more than 15 microns, filter membrane is circular, and diameter is generally all smaller, generally is not more than 12.5mm; Another kind is accurate filter, can filter the microgranule more than 5 microns, generally requires filter area enough big, generally greater than 350mm
2, because area is excessive, for the ease of producing, so accurate filter is not preferably directly to filter, therefore all use horizontal tray type structure, namely upper connecting tube is all parallel with the upper and lower covers of filter with lower linking tube.
The most existing transfusion device will be when medicinal liquid will flow in when transfusion, and the interior medicinal liquid of transfusion device can flow down always, and medicinal liquid just stops to flow when the gravitational equilibrium of the venous pressure of human body and transfusion device Chinese medicine.At this moment, because the diffusion of liquid, the blood in the human body can be back in the conduit of transfusion device, and this phenomenon causes that not only patient's terrified and nurse spends the aerofluxus etc. again of a lot of times, and can very fast formation thrombosis, even can cause the generation of malpractice.In order to address these problems, patented product both domestic and external has automatically only liquid transfusion device, and principle is in black Fei Shi pipe bottom or a device is installed below black Fei Shi pipe, after medicinal liquid has flowed, go out the water surface and seal automatically, this type of patented product is thought by mistake can blood return prevention.But in " research of the position of an actuator and blood back during transfusion " literary composition of " the southern nursing magazine second volume first phase of nineteen ninety-five ", set forth, after going out the automatic sealing of the water surface, the liquid at the back side is in complete agravity state (namely being similar to actuator pass death situation attitude in the article), because the effect that the effect that human vein is pressed and liquid have the phase counterdiffusion, cause blood can flow backwards back in the transfusion device, so can't reach the effect of blood return prevention, and can cause the formation of thrombosis, the easier generation that causes malpractice so easilier.Also have in the prior art in addition by a drainage strip reaches a spot of debris blood return prevention by the front end of the method introducing scalp acupuncture of syphon drainage effect is set, but the drainage strip processing technology is difficult with molding, manufacturing cost is relatively expensive, be difficult to the formation scale, therefore this product also is difficult to become the product of real practicality.
Summary of the invention
The technical problem to be solved in the present invention is can not realize the function of blood return prevention in order to overcome transfusion device in the prior art, causes causing easily the defective of malpractice, and controlled filter and medical Transfusion device of the blood return prevention time on a kind of medical Transfusion device is provided.
The present invention solves above-mentioned technical problem by following technical proposals:
The invention provides the controlled filter of blood return prevention time on a kind of medical Transfusion device, its characteristics are, filter comprises staving and only liquid type filter membrane that bowl inner chamber is separated into top and the bottom that two ends communicate, described filter also comprises an aqua storage tank, described aqua storage tank is fixedly arranged on the first half of described bowl inner chamber, described aqua storage tank is provided with at least one through hole, each described through hole is all filled in mutual clamping and is formed with a slit with a control stream, described control stream is arranged with one deck permeability filter membrane at least beyond the Great Wall, and described permeability filter membrane closely cooperates with described through hole by described control stream plug.
Filter of the present invention is provided with described aqua storage tank, aqua storage tank can be stored enough medicinal liquids when described medical Transfusion device is infused, just can utilize the medicinal liquid of storing in the described aqua storage tank to prevent blood back when described medical Transfusion device is near completion transfusion like this.And in order to allow dripping that the medicinal liquid of described aqua storage tank inside can be slow and unobstructed, in the present invention, offer described at least one through hole at described aqua storage tank, and each described through hole is all filled in mutual clamping and is formed with a slit with a control stream, like this, utilize the slit between described through hole and the described control stream plug just can make that medicinal liquid slowly drips.Simultaneously, by flowing the sheathed described permeability of one deck at least filter membrane beyond the Great Wall in described control, and described permeability filter membrane and described through hole closely cooperate, just make medicinal liquid when dripping, pass through the described permeability of one deck at least filter membrane, further delay the time under the described medicine liquid droplet, and then also just prolonged the time of blood return prevention.
And just can control the speed that the medicinal liquid in the described aqua storage tank flows down particularly by the adjusting to the thickness of the area size of the described permeability of one deck at least filter membrane and filter membrane, reach the effect that can regulate the control blood return prevention time.
Like this, utilize filter of the present invention just can guarantee to keep in the described medical Transfusion device medicinal liquid to have the time enough sluggish flow to overcome the venous pressure of blood of human body diffusion, and then guaranteed that medical Transfusion device can have adequate time to prevent blood back when transfusion.
Preferably, described filter also comprises at least one intake tunnel and at least one exhaust passage.Wherein, when medicinal liquid enters described filter, just can aqua storage tank in the filter and the air that ends between the liquid type filter membrane be discharged by described at least one exhaust passage, and the medicinal liquid in the filter also can at first flow down from described at least one intake tunnel.
Preferably, described permeability filter membrane is the hydrophilic filter membrane, is used for the blood return prevention effect.
Preferably, described permeability filter membrane is that internal diameter is more than or equal to the circular fiber film of 1mm.Certainly, described permeability filter membrane also can be the strong filter membrane of permeabilitys such as nylon membrane or poly (ether sulfone) film.
Preferably, the weight of every square metre described circular fiber film is more than or equal to 50g.
Preferably, described permeability filter membrane and described through hole are by clamping or bondingly closely cooperate realizing.
Preferably, the spacing in described slit is less than or equal to 1mm.
Spacing by described slit is set to be less than or equal to 1mm, has guaranteed that described control stream plug just can be connected in the described through hole under need not the assosting effect of adhesive etc., and the while can allow medicinal liquid slowly drip along described slit.Simultaneously, can described through hole and control stream plug between the slit be set to erratic shape, the time that so just can make the medicinal liquid of same volume flow down is uncertain, and then also just can prolong the time of blood return prevention to greatest extent.
Preferably, described at least one through hole is arranged at described aqua storage tank bottom.
Preferably, the cylindrical or polygon solid figure that is shaped as of plug is flowed in described control.Certainly, the shape of described control stream plug also can be set to other shape, as long as can realize function of the present invention.
Preferably, described filter also comprise one with the close-fitting loam cake of described staving, cover on described and offer at least one air vent, the lower surface of described loam cake is sticked and covers the hydrophobic filter film that blocks water of described at least one air vent.
Described filter the first half inside offers at least one air vent, a water preventing ability hydrophobic filter of the airtight at least covering of described air vent film.
Cover described at least one air vent by the described hydrophobic filter film phonograph seal that blocks water, just can guarantee when medicinal liquid is full of described filter, medicinal liquid can not flow out from described at least one air vent, and be full of in the process of described filter at medicinal liquid, make in the time of can keeping described filter and outside air unobstructed that air pressure and atmospheric pressure in the described filter are consistent, and then guaranteed a stable speed of medicinal liquid.
Preferably, be provided with at least one steam vent at described staving, distance between described steam vent and the described loam cake is 1/3rd to 1/2nd of described staving length, and the inwall of described staving is sticked and covers the hydrophobic filter film that blocks water of described at least one steam vent.
Because black Fei Shi pipe requires liquid level wherein must not surpass 1/2nd to 2/3rds of black Fei Shi pipe total height, therefore, in the present invention, offer described at least one steam vent at described staving, and the distance between described steam vent and the described loam cake is 1/3rd to 1/2nd of described staving length.Like this, when the medicinal liquid in the described filter did not arrive the height of described at least one steam vent, air wherein can be discharged by described at least one steam vent, and medicinal liquid can at first be full of filter until the height that reaches described at least one steam vent.And after complete moistening described at least one steam vent of medicinal liquid, because the described hydrophobic filter film that blocks water that described staving inwall is sticked causes air to discharge by described at least one steam vent again.At this moment, because the action of gravity of medicinal liquid self, just make under the medicine liquid droplet.
And, because described at least one steam vent, make the liquid level of filter of the present invention can not surpass described staving total height 1/2nd to 2/3rds, and then make filter of the present invention directly to use as black Fei Shi pipe.
Preferably, described filter comprises that also one inserts the hollow tubing conductor of described staving inside from described loam cake, distance between the bottom of described hollow tubing conductor and the described loam cake is 1/3rd to 1/2nd of described staving length, and the inside of described hollow tubing conductor is provided with the hydrophobic filter film that blocks water.
Utilize described hollow tubing conductor can make equally the liquid level of filter of the present invention can not surpass described staving total height 1/2nd to 2/3rds, and then make filter of the present invention directly to use as black Fei Shi pipe equally.It is close that its specific implementation principle and above-mentioned at least one steam vent are opened on the described staving, just repeats no more at this.
Preferably, described staving adopts flexible material to make.Like this, but flexible material can be so that described staving deformation, for example adopt the PVC(polrvinyl chloride) etc. soft material make described staving, just manually described staving is set to arbitrary shape, thereby just can when liquid enters described staving, the air in the staving be discharged, also the liquid level of the medicinal liquid in the staving can be maintained not 1/2nd to 2/3rds of the total height that can surpass described staving, thereby make described staving can use as black Fei Shi pipe equally.
The objective of the invention is to also provide a kind of medical Transfusion device, its characteristics are, it comprises the bottle plug puncture unit that connects successively by infusion tube, black Fei Shi pipe, flow regulator and intravenous needle, described medical Transfusion device also comprises above-mentioned filter, and described filter is arranged between described bottle plug puncture unit and the described intravenous needle by infusion tube.And the vertical height of described medical Transfusion device integral body is higher than the vertical height of the venous pressure of the optional position of human body when transfusion, and makes described medical filter have the function of blood return prevention.
The objective of the invention is to also provide a kind of medical Transfusion device, its characteristics are, it comprises filter, flow regulator and the intravenous needle of the bottle plug puncture unit that connects successively by infusion tube, above-mentioned conduct China ink Fei Shi pipe.
Above-mentioned filter can be used as black Fei Shi pipe and uses, and like this, makes when medical Transfusion device of the present invention can operate as normal also have the function of blood return prevention equally.
Positive progressive effect of the present invention is: filter of the present invention can guarantee that medical Transfusion device medicinal liquid in the aqua storage tank in the time will finishing transfusion has time enough slowly to drip down by the slit and overcomes the venous pressure of blood of human body diffusion, and then guaranteed that medical Transfusion device can have adequate time to prevent blood back when transfusion, and can further delay time under the described medicine liquid droplet by filter membrane, and then also further prolong the time of blood return prevention.Simultaneously, the present invention can be applicable to any medical Transfusion device or can be used as black Fei Shi pipe and use.
Description of drawings
Fig. 1 is the controlled structure of filter sketch map of blood return prevention time on the medical Transfusion device of embodiments of the invention 1.
Fig. 2 is the axonometric chart when aqua storage tank is with the combination of control stream plug in the controlled filter of the blood return prevention time on the medical Transfusion device of embodiments of the invention 1.
Fig. 3 is the upward view when aqua storage tank is with the combination of control stream plug in the controlled filter of the blood return prevention time on the medical Transfusion device of embodiments of the invention 1.
Fig. 4 is the axonometric chart when aqua storage tank is with the combination of control stream plug in the controlled filter of the blood return prevention time on the medical Transfusion device of embodiments of the invention 2.
Fig. 5 is the upward view when aqua storage tank is with the combination of control stream plug in the controlled filter of the blood return prevention time on the medical Transfusion device of embodiments of the invention 2.
Fig. 6 is the axonometric chart when aqua storage tank is with the combination of control stream plug in the controlled filter of the blood return prevention time on the medical Transfusion device of embodiments of the invention 3.
Fig. 7 is the upward view when aqua storage tank is with the combination of control stream plug in the controlled filter of the blood return prevention time on the medical Transfusion device of embodiments of the invention 3.
Fig. 8 is the controlled structure of filter sketch map of blood return prevention time on the medical Transfusion device of embodiments of the invention 4.
Fig. 9 is the controlled structure of filter sketch map of blood return prevention time on the medical Transfusion device of embodiments of the invention 5.
Figure 10 is first explosive view of controlled filter of the blood return prevention time on the medical Transfusion device of embodiments of the invention 6.
Figure 11 is second explosive view of controlled filter of the blood return prevention time on the medical Transfusion device of embodiments of the invention 6.
Figure 12 is the structural representation of the medical Transfusion device of embodiments of the invention 7.
Figure 13 is the structural representation of the medical Transfusion device of embodiments of the invention 8.
Figure 14 is the structural representation of the medical Transfusion device of embodiments of the invention 9.
The specific embodiment
Provide preferred embodiment of the present invention below in conjunction with accompanying drawing, to describe technical scheme of the present invention in detail.
Embodiment 1:
As Fig. 1, Fig. 2 and shown in Figure 3, the controlled filter of blood return prevention time on the medical Transfusion device of present embodiment comprise a staving 1 and respectively with the close-fitting loam cake 2 of described staving and base 3.Be inserted with water inlet pipe 21 and outlet pipe 31 on described loam cake 2 and the base 3 respectively, sealing and fixing has one to end liquid filter membrane 4 between described base 3 and described staving 1.
Described filter also comprises an aqua storage tank 5, described aqua storage tank 5 is fixedly arranged on described staving 1 inside, described aqua storage tank 5 is provided with at least one through hole 51, each described through hole 51 is all filled in 6 mutual clampings and is formed with a slit 7 with a control stream, be arranged with one deck filter membrane 8 at least on the described control stream plug 6, described filter membrane 8 closely cooperates with described through hole 51.
Filter of the present invention is provided with described aqua storage tank 5, aqua storage tank 5 can be stored enough medicinal liquids when described medical Transfusion device is infused, just can utilize the medicinal liquid of storage in the described aqua storage tank 5 to prevent blood back when described medical Transfusion device is near completion transfusion like this.And in order to allow dripping that the medicinal liquid of described aqua storage tank 5 inside can be slow and unobstructed, in the present invention, offer described at least one through hole 51 at described aqua storage tank 5, and each described through hole 51 is all filled in 6 mutual clampings and is formed with a slit 7 with a control stream, like this, utilize the slit 7 between described through hole 51 and the described control stream plug 6 just can make that medicinal liquid slowly drips.Simultaneously, by the sheathed described filter membrane of one deck at least 8 on described control stream plug 6, and described filter membrane 8 closely cooperates with described through hole 51, just make medicinal liquid when dripping, pass through the described filter membrane of one deck at least 8, further delay the time under the described medicine liquid droplet, and then also just prolonged the time of blood return prevention.
And just can control the speed that the medicinal liquid in the described aqua storage tank 5 flows down particularly by the adjusting to the thickness of the area size of the described filter membrane of one deck at least 8 and filter membrane 8, reach the effect that can regulate the control blood return prevention time.
Like this, utilize filter of the present invention just can guarantee to keep in the described medical Transfusion device medicinal liquid to have the time enough sluggish flow to overcome the venous pressure of blood of human body diffusion, and then guaranteed that medical Transfusion device can have adequate time to prevent blood back when transfusion.
Preferably, the spacing in described slit 7 is less than or equal to 1mm.
Spacing by described slit 7 is set to be less than or equal to 1mm, has guaranteed that described control stream plug 6 just can be connected in the described through hole 51 under need not the assosting effect of adhesive etc., and the while can allow medicinal liquid slowly drip along described slit 7.Simultaneously, the slit 7 between described through hole 51 and the control stream plug 6 can be set to erratic shape, the time that so just can make the medicinal liquid of same volume flow down is uncertain, and then also just can prolong the time of blood return prevention to greatest extent.
Preferably, described at least one through hole 51 is arranged at the bottom of described aqua storage tank 5, thereby the medicinal liquid that can guarantee storage in the described aqua storage tank 5 can flow out by described at least one through hole 51 fully, and then can prolong the time of blood return prevention to greatest extent.
Preferably, described control stream is filled in 6 the cylindrical or polygon solid figure that is shaped as.Certainly, the formation of described control stream plug 6 also can be set to other shape, as long as can realize function of the present invention.
In specific implementation process of the present invention, on described loam cake 2, also offer at least one air vent 22, being sticked in the lower surface of described loam cake 2 simultaneously covers the hydrophobic filter film 23 that blocks water of described at least one air vent 22.
Cover described at least one air vent 22 by described hydrophobic filter film 23 sealings that block water, just can guarantee when medicinal liquid is full of described filter, medicinal liquid can not flow out from described at least one air vent 22, and be full of in the process of described filter at medicinal liquid, make in the time of can keeping described filter and outside air unobstructed that air pressure and atmospheric pressure in the described filter are consistent, and then guaranteed a stable speed of medicinal liquid.
And described filter membrane 8 can adopt hydrophilic filter membrane (being the permeability filter membrane), specifically can adopt interior diameter more than or equal to the circular fiber film of 1mm.Certainly, described filter membrane 8 also can be nylon membrane or poly (ether sulfone) film.And preferably, the weight of every square metre described circular fiber film can be set to 90g.Simultaneously, described filter membrane 8 and described through hole 51 specifically can be realized closely cooperating by clamping or bonding mode.
The concrete operation principle of filter of the present invention is: after the water inlet pipe 21 of medicinal liquid by the loam cake 2 of described filter enters described staving 1, because the medicinal liquid that enters will be described only after liquid filter membrane 4 soaks, air in the described staving 1 can discharge by block water hydrophobic filter film 23 and described at least one air vent 22 of described on the described loam cake 2 under the effect of the mobile extruding of medicinal liquid.Block water behind the hydrophobic filter film 23 when medicinal liquid covers full wafer, because the resistance effect of the described hydrophobic filter film 23 that blocks water, medicinal liquid just can't be by described at least one air vent 22 discharge.At this moment, medicinal liquid will be broken through the described liquid filter membrane 4 that ends, and the outlet pipe 31 by described base 3 flows out described filter, gets final product normal infusion after flowing to the intravenous needle of described medical Transfusion device.
And after all medicinal liquids outside the aqua storage tank 5 in the described staving 1 have flowed, when the described liquid that ends liquid filter membrane 4 belows ends liquid automatically, medicinal liquid in the described aqua storage tank can drip by the slit 7 that forms between described control stream plug 6 and the described through hole 51, medicinal liquid can pass through the described filter membrane of one deck at least 8 when dripping, further delay the time under the described medicine liquid droplet, and then also just prolonged the time of blood return prevention.At last, medicinal liquid just makes whole infusion process proceed by the described liquid filter membrane 4 that ends again, thus kept one slowly transfusion state press to overcome human vein, played the effect of blood return prevention effectively.Simultaneously, because the slit 7 that forms between described through hole 51 and the described control stream plug 6 can irregularly arrange, adding area size and the thickness of described filter membrane 8 sheathed on the control stream plug 6 can regulate, just can control the speed that the medicine liquid droplet in the described aqua storage tank 5 gets off, reach the effect of the time that to regulate the control blood return prevention.
Embodiment 2:
As Fig. 4 and shown in Figure 5, the difference of present embodiment and embodiment 1 is: in the present embodiment, described control stream plug 6 is provided with the fluting 61 that spacing is not more than 0.5mm, and described control stream plug 6 is removed the inwall formation of remainder and described through hole 51 outside the described fluting 61 and is sealed and matched.Like this, just can form the slit between described fluting 61 and the described through hole 51.And the medicinal liquid in the described aqua storage tank 5 just can flow out by described slit, arrive the described liquid filter membrane 4 that ends through the filter membrane 8 that can regulate the control flow velocity again, and then just make whole infusion process proceed, thereby kept one slowly transfusion state press to overcome human vein, played the effect of blood return prevention equally effectively.
Embodiment 3:
As Figure 6 and Figure 7, the difference of present embodiment and embodiment 1 is: in the present embodiment, edge at described through hole 51 is provided with the fluting 52 that spacing is not more than 0.5mm, and the remainder formation that the edge of described control stream plug 6 and described through hole 51 is removed outside the described fluting 52 is sealed and matched.Like this, just can form the slit between described fluting 52 and the described control stream plug 6.And the medicinal liquid in the described aqua storage tank 5 just can flow out by described slit, arrive the described liquid filter membrane 4 that ends through the filter membrane 8 that can regulate the control flow velocity again, and then just make whole infusion process proceed, thereby kept one slowly transfusion state press to overcome human vein, played the effect of blood return prevention equally effectively.
Embodiment 4:
As shown in Figure 8, the difference of present embodiment and embodiment 1 is: in the present embodiment, be provided with at least one steam vent 11 at described staving 1, distance between described steam vent 11 and the described loam cake 2 be described staving 1 length 1/3rd to 1/2nd between arbitrary value, the inwall of described staving 1 is sticked and covers the hydrophobic filter film 12 that blocks water of described at least one steam vent 11.And in the present embodiment, be not provided with described at least one air vent 22 on the described staving 1, do not have the described hydrophobic filter film 23 that blocks water yet.
Because black Fei Shi pipe requires liquid level wherein must not surpass 1/2nd to 2/3rds of black Fei Shi pipe total height, therefore, in the present invention, offer described at least one steam vent 11 at described staving 1, and the distance between described steam vent 11 and the described loam cake 2 be described staving 1 length 1/3rd to 1/2nd between arbitrary value.Like this, in the time of in medicinal liquid splashes into described filter, and when the medicinal liquid in described filter does not arrive the height of described at least one steam vent 11, because the described effect that ends liquid filter membrane 4, medicinal liquid can at first form extruding to the air in the filter and make medicinal liquid can not flow out along described outlet pipe 31.And air can be discharged by described at least one steam vent 11, and medicinal liquid can at first be full of filter until the height that reaches described at least one steam vent 11.And after complete moistening described at least one steam vent 11 of medicinal liquid and the described hydrophobic filter film 12 that blocks water, because the described hydrophobic filter film 12 that blocks water that described staving 1 inwall is sticked causes air to discharge by described at least one steam vent 11 again.And medicinal liquid can continue to splash in the described filter, after air pressure in described filter adds that the gravity of medicinal liquid self makes that medicinal liquid overcomes the resistance of described only liquid filter membrane 4, just make under the medicine liquid droplet, and can keep liquid level in 1/2nd to 2/3rds position of the total height of described staving 1, meet the standard of black Fei Shi pipe, and then make filter of the present invention directly to use as black Fei Shi pipe.
Embodiment 5:
As shown in Figure 9, the difference of present embodiment and embodiment 1 is: in the present embodiment, described filter comprises that also one inserts the hollow tubing conductor 9 of described staving 1 inside from described loam cake, distance between the bottom of described hollow tubing conductor 9 and the described loam cake 2 is 1/3rd to 1/2nd of described staving 1 length, and the inside of described hollow tubing conductor 9 is provided with the hydrophobic filter film 91 that blocks water.
In the time of in medicinal liquid splashes into described filter, and when the medicinal liquid in described filter does not arrive the height of described at least one steam vent 11, because the described effect that ends liquid filter membrane 4, medicinal liquid can at first form extruding to the air in the filter and make medicinal liquid can not flow out along described outlet pipe 31.And air can be discharged by described hollow tubing conductor 9, and after medicinal liquid arrives the bottom of described hollow tubing conductor 9, can continue to rise to the described hydrophobic filter film 91 that blocks water along described hollow tubing conductor 9, if the described hydrophobic filter film 91 that blocks water is arranged at the bottom of described hollow tubing conductor 9, then after the hydrophobic filter film 91 that blocks water of the moistening described hollow tubing conductor of described medicinal liquid 9 bottoms, air just can't be derived by described hollow tubing conductor 9 again.And medicinal liquid can continue to splash in the described filter, after air pressure in described filter adds that the gravity of medicinal liquid self makes that medicinal liquid overcomes the resistance of described only liquid filter membrane 4, just make under the medicine liquid droplet, and can keep liquid level in 1/2nd to 2/3rds position of the total height of described staving 1, the standard that meets black Fei Shi pipe makes filter of the present invention directly to use as black Fei Shi pipe equally.
Certainly, specifically use soft materials such as PVC to make described staving in the present embodiment, thereby just can manually described staving 1 be set to arbitrary shape, thereby just can when liquid enters described staving 1, the air in the staving 1 be discharged, also the liquid level of the medicinal liquid in the staving can be maintained not 1/2nd to 2/3rds of the total height that can surpass described staving 1, thereby make described staving can use as black Fei Shi pipe equally.
Embodiment 6:
As Figure 10 and shown in Figure 11, the difference of present embodiment and embodiment 1 is: in the present embodiment, described filter also comprises at least one intake tunnel and at least one exhaust passage, and in the specific implementation process of present embodiment, described filter comprises a water inlet pipe 15 and an escape pipe 16.Wherein, when medicinal liquid enters described filter, just can the air that end in the filter between liquid filter membrane 4 and the aqua storage tank 5 be discharged by described escape pipe 16, and the medicinal liquid in the filter also can at first flow down from described water inlet pipe 15.Certainly, described intake tunnel and described exhaust passage also can be realized in other way, as long as can satisfy corresponding function.
In addition, in the present embodiment, described staving 1 also can use as described aqua storage tank 5 simultaneously, and the part that is lower than described water inlet pipe 15 of described staving 1 can be used as described aqua storage tank 5 and uses.
Embodiment 7:
As shown in figure 12, the medical Transfusion device of present embodiment comprises the bottle plug puncture unit 62 that connects successively by infusion tube 61, China ink Fei Shi pipe 63, flow regulator 64 and intravenous needle 65, also comprise as embodiment 1,2 or 3 described filters, described filter is serially connected between described black Fei Shi pipe 63 and the described flow regulator 64 by infusion tube 61, and the vertical height of described medical Transfusion device integral body is higher than the vertical height of the venous pressure of the optional position of human body when transfusion, thereby make the medical Transfusion device of present embodiment have the blood return prevention function, and can regulate the time of control blood return prevention.
Embodiment 8:
As shown in figure 13, the difference of present embodiment and embodiment 7 is: in the present embodiment, described filter is serially connected between described bottle plug puncture unit 62 and the described black Fei Shi pipe 63 by infusion tube 61, and the vertical height of described medical Transfusion device integral body is higher than the vertical height of the venous pressure of the optional position of human body when transfusion, thereby make the medical Transfusion device of present embodiment have the blood return prevention function, and can regulate the time of control blood return prevention.
Embodiment 9:
As shown in figure 14, the medical Transfusion device of present embodiment comprise the bottle plug puncture unit 62 that connects successively by infusion tube 61, as embodiment 4 or embodiment 5 described filters as black Fei Shi pipe use, flow regulator 64 and intravenous needle 65, and the vertical height of described medical Transfusion device integral body is higher than the vertical height of the venous pressure of the optional position of human body when transfusion.Wherein, the filter among embodiment 4 or the embodiment 5 can use as black Fei Shi pipe, and can make the medical Transfusion device of present embodiment have the blood return prevention function, and can regulate the time of control blood return prevention.
Though more than described the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, protection scope of the present invention is limited by appended claims.Those skilled in the art can make numerous variations or modification to these embodiments under the prerequisite that does not deviate from principle of the present invention and essence, but these changes and modification all fall into protection scope of the present invention.
Claims (15)
1. the controlled filter of blood return prevention time on the medical Transfusion device, it is characterized in that, filter comprises staving and only liquid type filter membrane that bowl inner chamber is separated into top and the bottom that two ends communicate, described filter also comprises an aqua storage tank, described aqua storage tank is fixedly arranged on the first half of described bowl inner chamber, described aqua storage tank is provided with at least one through hole, each described through hole is all filled in mutual clamping and is formed with a slit with a control stream, described control stream is arranged with one deck permeability filter membrane at least beyond the Great Wall, and described permeability filter membrane closely cooperates with described through hole by described control stream plug.
2. filter as claimed in claim 1 is characterized in that, described filter also comprises at least one intake tunnel and at least one exhaust passage.
3. filter as claimed in claim 1 is characterized in that, described permeability filter membrane is the hydrophilic filter membrane.
4. filter as claimed in claim 3 is characterized in that, described permeability filter membrane is that internal diameter is more than or equal to the circular fiber film of 1mm.
5. filter as claimed in claim 4 is characterized in that, the weight of every square metre described circular fiber film is more than or equal to 50g.
6. filter as claimed in claim 1 is characterized in that, described permeability filter membrane and described through hole are by clamping or bondingly closely cooperate realizing.
7. filter as claimed in claim 1 is characterized in that, the spacing in described slit is less than or equal to 1mm.
8. filter as claimed in claim 1 is characterized in that, described at least one through hole is arranged at described aqua storage tank bottom.
9. as any described filter among the claim 1-8, it is characterized in that the cylindrical or polygon solid figure that is shaped as of plug is flowed in described control.
10. filter as claimed in claim 9, it is characterized in that, described filter also comprise one with the close-fitting loam cake of described staving, cover on described and offer at least one air vent, the lower surface of described loam cake is sticked and covers the hydrophobic filter film that blocks water of described at least one air vent.
11. filter as claimed in claim 10, it is characterized in that, be provided with at least one steam vent at described staving, distance between described steam vent and the described loam cake is 1/3rd to 1/2nd of described staving length, and the inwall of described staving is sticked and covers the hydrophobic filter film that blocks water of described at least one steam vent.
12. filter as claimed in claim 10, it is characterized in that, described filter comprises that also one inserts the hollow tubing conductor of described staving inside from described loam cake, distance between the bottom of described hollow tubing conductor and the described loam cake is 1/3rd to 1/2nd of described staving length, and the inside of described hollow tubing conductor is provided with the hydrophobic filter film that blocks water.
13. filter as claimed in claim 10 is characterized in that, described staving adopts flexible material to make.
14. medical Transfusion device, it is characterized in that, it comprises the bottle plug puncture unit that connects successively by infusion tube, black Fei Shi pipe, flow regulator and intravenous needle, described medical Transfusion device comprises that also described filter is arranged between described bottle plug puncture unit and the described intravenous needle by infusion tube as any described filter among the claim 1-10.
15. a medical Transfusion device is characterized in that, it comprises the bottle plug puncture unit that connects successively by infusion tube, as any described filter among the claim 11-13 as black Fei Shi pipe, flow regulator and intravenous needle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310205510.8A CN103272313B (en) | 2013-05-28 | 2013-05-28 | Filter with blood return preventing time controllable on medical infusion set and medical infusion set |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310205510.8A CN103272313B (en) | 2013-05-28 | 2013-05-28 | Filter with blood return preventing time controllable on medical infusion set and medical infusion set |
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| CN103272313A true CN103272313A (en) | 2013-09-04 |
| CN103272313B CN103272313B (en) | 2015-03-04 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103623478A (en) * | 2013-10-31 | 2014-03-12 | 上海金塔医用器材有限公司 | Disposable liquid-stopping and flow-slowing infusion apparatus |
| CN103977486A (en) * | 2014-04-11 | 2014-08-13 | 上海金塔医用器材有限公司 | Blood return prevention time-controllable filter for medical infusion apparatus and medical infusion apparatus |
| CN105079917A (en) * | 2015-09-16 | 2015-11-25 | 武汉智迅创源科技发展股份有限公司 | Automatic anti-bubble liquid-stopping filter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202637636U (en) * | 2012-03-16 | 2013-01-02 | 魏安 | Blood return prevention liquid medicine filter and automatic venting infusion device with same |
| CN202699734U (en) * | 2012-07-07 | 2013-01-30 | 祁健 | Disposable safe infusion set |
| CN202892521U (en) * | 2012-06-21 | 2013-04-24 | 陆春梅 | Anti-blood-return filter capable of exhausting air automatically of medical infusion apparatus |
| CN203075349U (en) * | 2012-08-07 | 2013-07-24 | 陆春梅 | Anti-blood-reflux filter capable of discharging air automatically on medical transfusion system and medical transfusion system thereof |
| CN203389171U (en) * | 2013-05-28 | 2014-01-15 | 上海金塔医用器材有限公司 | Filter controllable in blood return preventing time and used in medical infusion set and medical infusion set |
-
2013
- 2013-05-28 CN CN201310205510.8A patent/CN103272313B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202637636U (en) * | 2012-03-16 | 2013-01-02 | 魏安 | Blood return prevention liquid medicine filter and automatic venting infusion device with same |
| CN202892521U (en) * | 2012-06-21 | 2013-04-24 | 陆春梅 | Anti-blood-return filter capable of exhausting air automatically of medical infusion apparatus |
| CN202699734U (en) * | 2012-07-07 | 2013-01-30 | 祁健 | Disposable safe infusion set |
| CN203075349U (en) * | 2012-08-07 | 2013-07-24 | 陆春梅 | Anti-blood-reflux filter capable of discharging air automatically on medical transfusion system and medical transfusion system thereof |
| CN203389171U (en) * | 2013-05-28 | 2014-01-15 | 上海金塔医用器材有限公司 | Filter controllable in blood return preventing time and used in medical infusion set and medical infusion set |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103623478A (en) * | 2013-10-31 | 2014-03-12 | 上海金塔医用器材有限公司 | Disposable liquid-stopping and flow-slowing infusion apparatus |
| CN103977486A (en) * | 2014-04-11 | 2014-08-13 | 上海金塔医用器材有限公司 | Blood return prevention time-controllable filter for medical infusion apparatus and medical infusion apparatus |
| CN105079917A (en) * | 2015-09-16 | 2015-11-25 | 武汉智迅创源科技发展股份有限公司 | Automatic anti-bubble liquid-stopping filter |
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| Publication number | Publication date |
|---|---|
| CN103272313B (en) | 2015-03-04 |
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Application publication date: 20130904 Assignee: Hubei Jinta Medical Equipment Co.,Ltd. Assignor: SHANGHAI JINTA MEDICAL Co.,Ltd. Contract record no.: X2022310000173 Denomination of invention: Filter and medical infusion set with controllable anti blood return time on medical infusion set Granted publication date: 20150304 License type: Common License Record date: 20221213 |