CN202263243U - Infusion device - Google Patents
Infusion device Download PDFInfo
- Publication number
- CN202263243U CN202263243U CN2011203368727U CN201120336872U CN202263243U CN 202263243 U CN202263243 U CN 202263243U CN 2011203368727 U CN2011203368727 U CN 2011203368727U CN 201120336872 U CN201120336872 U CN 201120336872U CN 202263243 U CN202263243 U CN 202263243U
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- Prior art keywords
- film
- dropping funnel
- solution stopping
- transfusion device
- stopping medicine
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- 238000001802 infusion Methods 0.000 title abstract description 4
- 239000003814 drug Substances 0.000 claims abstract description 107
- 239000007788 liquid Substances 0.000 claims abstract description 107
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000011148 porous material Substances 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 5
- 238000001990 intravenous administration Methods 0.000 claims description 20
- 238000007789 sealing Methods 0.000 claims description 20
- 230000000694 effects Effects 0.000 claims description 16
- 239000012528 membrane Substances 0.000 claims description 16
- 239000008187 granular material Substances 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims description 4
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- 235000001674 Agaricus brunnescens Nutrition 0.000 description 1
- 241000707825 Argyrosomus regius Species 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to an infusion device, which belongs to the technical field of medical instruments, and comprises a puncture set, an upper catheter of a drip chamber, a drip tube, the drip chamber, a lower catheter of the drip chamber, a regulator and a vein needle which are sequentially connected, wherein a seal cover is sleeved on a liquid outlet end of the vein needle; a vent pipe is arranged between the drip chamber and the lower catheter of the drip chamber; one end of the vent pipe, which is arranged in an inner cavity of the drip chamber, is at least provided with a vent hole; a liquid medicine passing stoppage film, which is made from materials invaded by water, is coordinately arranged above the vent pipe; a group of pores is arranged in the liquid medicine passing stoppage film; the liquid medicine passing stoppage film allows liquid medicine and air to pass while stops insoluble particles with the diameter being larger than the diameter of each pore in the liquid medicine; and the seal cover seals the liquid outlet end of the vein needle and is provided with an air filter. The infusion device has a simple structure, and has the functions of self-venting and automatic liquid stoppage.
Description
Technical field
This utility model belongs to technical field of medical instruments, is specifically related to a kind of from the transfusion device of aerofluxus with automatic solution stopping.
Background technology
Transfusion device is a kind of medical apparatus commonly used; After transfusion device inserts medicine bottle; Before carrying out the human body puncture; It is residual that the dropping funnel downcomer that must make transfusion device does not have bubble until the full medicinal liquid of intravenous needle, and to prevent that bubble is transfused to human body and causes the dead or chronic blood vessel embolism of acute bubble property thromboembolism, this process is called aerofluxus.The used transfusion device of medical institutions all requires the manual aerofluxus of medical personnel at present; Promptly be inverted dropping funnel or choked to death the dropping funnel downcomer on the other hand by medical personnel, another hands is decontroled after pinching flat dropping funnel, utilizes under the dropping funnel elastic recovery and inhales medicinal liquid; Hold about half of dropping funnel height until medicinal liquid several times repeatedly; Wait for 3-5s again, the bubble of sneaking into the dropping funnel inner liquid medicine is separated out after, just putting dropping funnel or unclamping the conduit of choking to death and make bubble-free medicinal liquid flow into the dropping funnel downcomer until overflowing from the intravenous needle front end; Last stuck actuator is accomplished exhaust process.This process is more consuming time, accounts for whole 1/3rd times of transfusion operation, and under patient's hurry situation of many times, it is residual aerofluxus to occur; Operation requiring height to be unfavorable for that the abecedarian grasps, maybe be because operation mistake or unskilled causes a large amount of wastes of medicinal liquid or aerofluxus residual; And, cause place, dead angle bubble to be difficult to get rid of because also there is the aerofluxus dead angle in the defective of transfusion device circuit design.
When the nurse changes the bottle operation in addition, close actuator earlier, perforator is inserted second bottle, open actuator again by routine operation; Be liquid if the solution stopping medicine is crossed the film below, no gas cavity promotes regulating wheel downwards when then closing actuator, and the medicinal liquid that is stopped is by drop-down; The solution stopping medicine is crossed water in the film and is inhaled down, and gas gets into the solution stopping medicine and crosses film, inserts second bottle when opening actuator again; Bubble gets into the solution stopping medicine and crosses the film below, flows into the dropping funnel downcomer, occurs exhausting problem when causing changing bottle.While second bottle of bottle often occur and presses too high situation when changing the bottle operation the nurse, and too high bottle pressure plays and promotes the same effect of regulating wheel downwards, exhausting problem can occur equally.
Do not have a kind of transfusion device in the prior art and can solve above technical problem simultaneously.
The utility model content
To the problem that prior art exists, the purpose of this utility model is to design the technical scheme that a kind of transfusion device is provided.This transfusion device is simple in structure, and has from aerofluxus and automatic solution stopping function.
Described a kind of transfusion device; Comprise the perforator, dropping funnel upper conduit, dropper, dropping funnel, dropping funnel downcomer, actuator and the intravenous needle that connect successively; The socket of intravenous needle liquid outlet is provided with sealing shroud, it is characterized in that between described dropping funnel and the dropping funnel downcomer exhaustor being set, and exhaustor is arranged on the end of dropping funnel inner chamber of dropping funnel a steam vent is set at least; The top of exhaustor is equipped with by making water invade the solution stopping medicine that makes of profit action material to its generation and crosses film; Described solution stopping medicine is crossed one group of pore is set on the film, and the solution stopping medicine is crossed film and allowed medicinal liquid and gas to pass through, and can stop that diameter in the medicinal liquid passes through greater than the insoluble granule in its capillary aperture; The liquid outlet of described sealing shroud sealing intravenous needle, and sealing shroud is provided with air filter.
Described a kind of transfusion device is characterized in that described solution stopping medicine crosses the dropping funnel inner chamber that film is arranged at dropping funnel.
Described a kind of transfusion device is characterized in that described solution stopping medicine crosses in the housing that film is arranged at dropper top.
Described a kind of transfusion device is characterized in that described solution stopping medicine is provided with thick effect filter membrane above crossing film, and the filter opening diameter of slightly imitating filter membrane is 10 μ m～25 μ m.
Described a kind of transfusion device is characterized in that it is 45～135 degree that described solution stopping medicine is crossed the angle of the axis of film and dropping funnel.
Described a kind of transfusion device is characterized in that it is 0.3mm～3mm that described solution stopping medicine is crossed film thickness, and it is 12mm～50mm that the solution stopping medicine is crossed the film diameter.
Described a kind of transfusion device is characterized in that it is 3 μ m～10 μ m that described solution stopping medicine is crossed the pore diameter of film.
Described a kind of transfusion device is characterized in that described solution stopping medicine crosses the capillarity of the pore of film drawing high of water is higher than 0.4m highly at least.
Described a kind of transfusion device is characterized in that described exhaustor top is provided with water deflector cover.
Described a kind of transfusion device is characterized in that described steam vent is an elongated orifices, and its upper end width becomes the end narrow top width shape structure greater than the lower end width.
Described a kind of transfusion device is characterized in that described air filter is that to make automatically full whole the transfusion device time of medicinal liquid be 7s～20s to ventilation, the water infiltrate aeration porous membrane that has water preventing ability and can stop at least to have 0.7m hydraulic pressure.
Above-mentioned a kind of transfusion device, simple in structure, reasonable in design; The lower end of dropping funnel is provided with the exhaustor with steam vent; The solution stopping medicine is set above exhaustor crosses film, and the intravenous needle liquid outlet is provided with the sealing shroud of band air filter, make whole transfusion device have from aerofluxus and automatic solution stopping function.
Compare with existing transfusion device, the utlity model has following advantage:
1. save the transfusion operation time: after transfusion device inserts medicine bottle, the transfusion device automatic vent, and control evacuation time at 10～15 seconds, medical personnel prepare before can between exhaust cycle, tying up punctures such as sphygmomanometer cuff and skin degerming;
2. aerofluxus is stable, does not receive the influence of operator and operating time, and is safe;
3. aerofluxus is thorough, does not have the aerofluxus dead angle;
4. it is simple to operate to change bottle, realizes automatization's solution stopping operation, and medical personnel need not to carry out manual solution stopping, and solves the exhausting problem when changing bottle.
Description of drawings
Fig. 1 is the structural representation of this utility model;
Fig. 2 is the structural representation of another embodiment in this utility model.
Among the figure: the 1-perforator; 2-dropping funnel upper conduit; The 3-dropper; The 301-housing; The 4-dropping funnel; 401-dropping funnel inner chamber; 5-is slightly imitated filter membrane; 6-solution stopping medicine is crossed film; The 7-water deflector cover; The 8-exhaustor; The 801-steam vent; 9-dropping funnel downcomer; The 10-actuator; The 11-intravenous needle; The 12-sealing shroud; The 13-air filter.
The specific embodiment
Further specify this utility model below in conjunction with Figure of description.
As shown in Figure 1, the perforator 1 that a kind of transfusion device connects successively, dropping funnel upper conduit 2, dropper 3, dropping funnel 4, dropping funnel downcomer 9, actuator 10, intravenous needle 11 and sealing shroud 12.Between dropping funnel 4 and the dropping funnel downcomer 9 exhaustor 8 is set.Exhaustor 8 upper ends are stretched in the dropping funnel inner chamber 401 of dropping funnel 4, middle part and the sealing of dropping funnel 4 lower port, and the lower end is connected with dropping funnel downcomer 9.Exhaustor 8 upper ends of stretching into dropping funnel 4 are provided with a steam vent 801 are set at least, and steam vent 801 is an elongated orifices, and the upper end width becomes the end narrow top width shape structure greater than the lower end width.The top of exhaustor 8 fixedly installs water deflector cover 7, and water deflector cover 7 can be pyramidal structure, mushroom construction etc.
The top of exhaustor 8 is equipped with the solution stopping medicine and crosses film 6, and the solution stopping medicine is crossed in the dropping funnel inner chamber 401 that film 6 is arranged on dropping funnel 4.The solution stopping medicine is crossed one group of pore is set in the film 6; Allow medicinal liquid and gas to pass through, can stop that diameter in the medicinal liquid passes through greater than the insoluble granule in its capillary aperture, and the solution stopping medicine is crossed film 6 employings and made water invade the material manufacture of profit effect to its generation; Like cellulose mixture film, nylon membrane or polyester core pore membrane etc.; Be that the liquid surface shape of water in pore is spill, capillarity rises water and draws effect, and pore can let degree of drawing high waterborne be higher than 0.4mm at least.It is 0.3mm～3mm that the solution stopping medicine is crossed film 6 thickness, and it is 12mm～50mm that the solution stopping medicine is crossed film 6 diameters, and the pore diameter is 3 μ m～10 μ m.When being provided with, the angle that the solution stopping medicine is crossed the axis of film 6 and dropping funnel 4 is 45～135 degree, and when promptly guaranteeing actual the use, film 6 crossed by the solution stopping medicine and horizontal plane angle is no more than 45 degree, to guarantee the draw high effect effectively conduction of capillarity to medicinal liquid.One deck can also be set above the solution stopping medicine is crossed film 6 simultaneously at least slightly imitate filter membrane 5, slightly imitating filter membrane 5 filter opening diameters is 10～25 μ m.The thick filter membrane 5 of imitating can be arranged on the upper surface that the solution stopping medicine is crossed film 6, also can not cross film 6 with the solution stopping medicine and contact.
Socket is provided with sealing shroud 12 on the intravenous needle 11 of transfusion device tail end, the liquid outlet of sealing shroud 12 sealing intravenous needles 11.And air filter 13 is set on sealing shroud 12; Air filter 13 is aeration porous membrane (can on market, buy); It is 7s～20s that ventilation can make automatically full whole transfusion device time of medicinal liquid; And this diaphragm has water preventing ability simultaneously, can stop the water infiltrate with 0.7m hydraulic pressure at least.
During use, perforator 1 is inserted medicine bottle, medicinal liquid flows through perforator 1 successively, dropping funnel upper conduit 2 and dropper 3; Get into dropping funnel inner chamber 401, gather above crossing film 6 with the solution stopping medicine, when the solution stopping medicine is crossed film 6 and all covered by water at the thick filter membrane 5 of imitating; The solution stopping medicine is crossed film 6 top dropping funnel inner chambers 401 becomes dead space, and medicinal liquid continues to drip from dropper 3 under effect of inertia subsequently, gas in the compression dead space; Form positive air pressure, pressed the solution stopping medicine to cross film 6 medicinal liquid, the solution stopping medicine is crossed film 6 beginnings and is oozed medicinal liquid downwards.
Cross medicinal liquid the dropping funnel inner chamber 401 solution stopping medicine cross film 6 below of film 6 under oozing from the solution stopping medicine and gather that (if exhaust-pipe-free 8, then medicinal liquid directly flows out from dropping funnel 4 lower ends, and the gas of both sides, dropping funnel 4 lower end is blocked; When the dirty speed of medicinal liquid was progressively accelerated, the gas of being sealed was formed the bubble of much sneaking into medicinal liquid by the medicinal liquid leukorrhagia; And be difficult to through gas because the solution stopping medicine is crossed the pore of film 6, this bubble can't be crossed film 6 discharges from the solution stopping medicine through upwards pushing oppositely, causes the aerofluxus failure); Because exhaustor 8 is sealed dropping funnel 4 outlet, medicinal liquid only possibly flow down from the steam vent on the exhaustor 8 801, and when steam vent 801 width enough little; Can form enough surface tension and stop medicinal liquid to pass through,, form the medicinal liquid of dropping funnel inner chamber 401 lower ends so the dropping funnel inner chamber 401 of medicinal liquid below the solution stopping medicine is crossed film 6 gathers rising; Seal steam vent 801 topmost the time when liquid level is elevated to, form the solution stopping medicine and cross the gas dead space between the medicinal liquid of film 6 and dropping funnel inner chamber 401 lower ends, medicinal liquid continuation under inertia of crossing film 6 along with the solution stopping medicine is oozed downwards; Gas is compressed in the dead space; Form malleation, because steam vent 801 upper end perforates are wideer than the lower end, its surface tension of passing through is little simultaneously; So medicinal liquid is pressed into from steam vent 801 upper ends (if medicinal liquid is pressed into earlier from steam vent 801 lower ends earlier; Then exhaustor 8 endoporus upper ends gas can't be discharged, when medicinal liquid when dropping funnel downcomer 9 quickens to flow, then this gas will be inhaled into dropping funnel downcomer 9).Steam vent 801 also has another effect, crosses film 6 when medicinal liquid from the solution stopping medicine and oozes following time, impacts the medicinal liquid of dropping funnel inner chamber 401 lower ends, sandwiches bubble, and steam vent 801 can also stop this impact bubble.Water deflector cover 7 can prevent that medicinal liquid from contacting steam vent 801 in advance in addition, if there is not water deflector cover 7, then medicinal liquid can directly drop on the steam vent 801; Form moisture film; Closed grate hole 801 forms the solution stopping medicine in advance and crosses the gas dead space between the medicinal liquid of film 6 and dropping funnel inner chamber 401 lower ends in advance, and medicinal liquid flows into steam vent 801 in advance; The medicinal liquid liquid level of dropping funnel inner chamber 401 lower ends is not enough, and bubble will be inhaled into exhaustor 8.
After medicinal liquid flows into exhaustor 8; Further flow into dropping funnel downcomer 9, and along with the accumulation of kinetic energy, its flow velocity is accelerated; Gas also quickens to discharge from air filter 13 in the conduit; But because the ventilation of air filter 13 is limited, the gas velocity of discharge limits to some extent, and then restriction medicinal liquid flow velocity in dropping funnel downcomer 9.If the medicinal liquid flow velocity is too fast, will produce two kinds of bubbles, first kind; Medicinal liquid flow velocity in dropping funnel downcomer 9 is too fast, and the solution stopping medicine is crossed the medicinal liquid of film 6 under oozing and do not replenished, and causes the medicinal liquid liquid level of dropping funnel inner chamber 401 lower ends to descend; Steam vent 801 is open-minded again, causes bubble to suck; Second kind, flow velocity is big more, and impact bubble kinetic energy is big more, might break through the surface tension barrier effect of steam vent 801, sneaks into bubble.This utility model is adjusted into 7-20s through air filter 13 with the automatic vent time, prevents that effectively bubble from getting into dropping funnel downcomer 9, and if above 20s; Then possibly surpass the nurse to patient's required time of sterilizing; After promptly causing the nurse to accomplish sterilization, automatic vent is not accomplished as yet, loses time.
After medicinal liquid flows to air filter 13, because air filter 13 can stop that at least (whole the about 1.5m of transfusion device length considers bending to the hydraulic pressure of 0.7m; Actual vertical height is near 0.7m); Medicinal liquid can't pass through air filter 13, stops automatically, accomplishes omnidistance from aerofluxus.Because medicinal liquid can stop by air filter 13 automatically, so aerofluxus need not nurse's nurse, the nurse can the limit automatic vent, and the patient that next step is carried out in the limit sterilizes, and its operation is saved 10-15s than routine operation.And general self-venting transfusion device, all be the dropping funnel part from aerofluxus, can't realize that dropping funnel downcomer 9 is from aerofluxus; But depend on the nurse guard, treat that intravenous needle 11 goes out stuck actuator 10 behind the medicinal liquid, can't stop automatically; Promptly before accomplishing aerofluxus, the nurse can't carry out next step operation, and is so-called from aerofluxus; Just save operating procedure, can not save the operating time.Air filter 13 can be isolated intravenous needle 11 and extraneous contacting in addition, prevents that intravenous needle is contaminated.
After the nurse accomplished patient's sterilization, stuck actuator 10 was pulled out sealing shroud 12, and patient is punctured; After puncture finishes, open actuator 10, medicinal liquid flows down smoothly infuses that (solution stopping this moment medicine is crossed film 6 tops has medicinal liquid; Ingress of air does not form capillarity, does not stop that medicinal liquid flows down).
When first bottle hung after, if the nurse can not in time change bottle or consider and will make full use of medicinal liquid, dropping funnel inner chamber 401 inner liquid medicines that the solution stopping medicine is crossed film 6 tops will flow to end; This moment, its top was an air, is water in it with regard to the pore that the solution stopping medicine is crossed film 6; Form liquid level, cross film because water can be invaded profit solution stopping medicine, so liquid level is a spill; The spill liquid level can on draw liquid, draw effect with highly weighing in the formation, the water column lifting height is:
Here: γ=surface tension; θ=contact angle; ρ=fluid density; G=acceleration of gravity; R=tubule radius
Work as θ>90 degree, this expression meniscus is a convex surface; < 0, the expression fluid descends at capillary tube h, and promptly hydrargyrum is in the situation of glass tubing simultaneously.
For on the sea level, adorned the glass tubing of water,
γ?=?0.0728?J?m-2
θ?=?20°
ρ?=?1000?kg?m-3
g?=?9.8?m?s-2
Liquid-column height is:
.
According to this equation, in theory in 1 meter wide glass tubing of radius, water can rise 0. 000 014 meters (so the utmost point is not easy to be discovered); And in the capillary glass tube of diameter 10 μ m, water can rise 2.8 meters.In the capillary glass tube of diameter 3 μ m, the water 9.24m that can rise.Consider that the solution stopping medicine crosses film 6 materials and be different from glass, actually draw high highly about 0.4m to 1m, the solution stopping medicine that can contend with is crossed below the film 0.4m suction under the water column of 1m.The solution stopping medicine is crossed the air chamber between the medicinal liquid of film 6 and dropping funnel inner chamber 401 lower ends in addition, does not influence the conduction of pressure.
It is more little that the solution stopping medicine is crossed film 6 pore apertures; Draw high highly highly more, the hydraulic pressure resistance ability is strong more, is stopped up by the insoluble granule in the medicinal liquid easily but pore is too small; Cause flow velocity to descend; Can't reach national transfusion device standard (infusion flow rate of stipulating among the gb8368-2005 must reach 10 minutes and flow out normal saline 1000ml),, and above the solution stopping medicine is crossed film 6, add thick effect filter membrane 5 in case of necessity so the pore aperture can not be less than 3 μ m; (greater than 10 μ m) filter in advance to microgranule bigger in the medicinal liquid, and it is unobstructed to keep the solution stopping medicine to cross film 6.The solution stopping medicine is crossed film 6 membrane areas at least greater than the circle of diameter 12mm in addition, and area is easy blocking very much not.The solution stopping medicine is crossed film 6 thickness more preferably greater than 0.3mm in addition, strengthens capillarity, can suitably amplify the pore aperture, improve flow velocity, but the pore diameter should not surpass 10 μ m.The solution stopping medicine is crossed film 6 maintenance level as far as possible in use in addition, if with horizontal plane angle greater than 45 degree, the then capillary power of drawing high is difficult to conduction.
The existence of the medicinal liquid of dropping funnel inner chamber 401 lower ends can be played cushioning effect, after the solution stopping medicine is crossed the inefficacy of film 6 solution stopping overlong time, can prevent that also medicinal liquid from flowing to end at once, prevents that bubble from getting into conduit at once.
Because the solution stopping medicine is crossed the capillarity of film 6, medicinal liquid stops at the solution stopping medicine and crosses film 6, but the solution stopping medicine is crossed the meagre medicinal liquid layer of film 6 belows and will constantly be oozed down; And can't be replenished, so after the solution stopping about 3 minutes, the medicinal liquid layer that the solution stopping medicine is crossed film 6 belows disappears; Cross film 6 pores to the solution stopping medicine this moment; Its below has also formed liquid level, and this liquid level was spill upwards originally, but because the solution stopping medicine is crossed the vacuum suction effect (crossing the gas cavity conduction of film 6 belows through the solution stopping medicine) of 6 times liquid of film; The below liquid level forms downward spill; Further stop liquid to dirty, in case promptly the solution stopping medicine medicinal liquid layer of crossing film 6 belows disappears, the solution stopping medicine is crossed the solution stopping effect of film 6 and will further be strengthened.
Simultaneously, when the nurse changes the bottle operation, often exist second bottle of bottle to press too high situation (when the nurse makes up a prescription; General extract a certain amount of medicinal liquid earlier out, the medicinal liquid that the same amount of reinjecting prepares, but because when taking out medicine; Gas will be sucked by negative pressure from needle tubing and bottle stopper gap, so often there is the 5-15kpa malleation in the medicine bottle of allotting, be equivalent to 0.5-1.5m hydraulic pressure; And whole transfusion device hydraulic pressure is also with regard to 1.5m, so the malleation that causes of making up a prescription is very high, and after the nurse prepares this bottle; Generally stop up puncturing hole and prevent that medicinal liquid from contacting with extraneous, and be inverted medicine bottle, so malleation is in case form and can't gush) with Cotton Gossypii and adhesive tape.If adopt the solution stopping of sealing floating plug, press to down like too high bottle and be transmitted in the dropping funnel, causing sealing floating plug can't float; Even the nurse chokes dropping funnel downcomer and extruding to death; Also can only temporarily float the sealing floating plug, along with liquid at high speed is dirty, floating plug is often inhaled down again stops up liquid outlet; Cross film if adopt the solution stopping medicine; And this solution stopping medicine is crossed film below and is not had air chamber (this utility model solution stopping medicine is crossed between film 6 and dropping funnel inner chamber 401 lower end medicinal liquids and had air chamber), then inserts second bottle when transfusion device, open actuator 10 again after; The bottle internal gas pressure is transmitted in the dropping funnel inner chamber 401; The solution stopping medicine is crossed in the film 6 liquid extrude the solution stopping medicines and cross film 6, gas gets into the solution stopping medicine and crosses film 6 belows, when treating that liquid covers the solution stopping medicine again and crosses film 6; The solution stopping medicine is crossed film 6 belows and has been formed the bubble that can't go up row, causes changing a bottle exhausting problem.To high bottle of problem of pressing the above two kinds of structures that cause, generally be employed in the measure that dropping funnel 4 is offered air bleeding valve, can effectively alleviate air pressure; But dropping funnel sets up air bleeding valve to exist cost to increase problem, and the gas inspection method that adopts of the transfusion device producer air bleeding valve edge that at all can't detection itself just allows to ventilate have or not gas leakage at present, in case occur that the air bleeding valve ovfl will cause liquid medicine contamination and serious problems such as can't infuse; In addition; Even the air bleeding valve edge is air tight, air bleeding valve also can only carry out filtration to a certain degree to air, after all secluding air fully; With causing new liquid medicine contamination, so set up air bleeding valve to have very big drawback.And this utility model is crossed film at the solution stopping medicine and is set up exhaustor 8 for 6 times; And formation solution stopping medicine is crossed the air chamber between film 6 and dropping funnel inner chamber 401 lower end medicinal liquids; Even pressing, high bottle make gas entering solution stopping medicine cross film 6 times; Be nothing but the volume that increases this air chamber, because the existence of exhaustor 8, gas can't get into dropping funnel downcomer 9 harmful to human.
When the nurse changes the bottle operation in addition; Promote the stuck actuator 10 of regulating wheel to the transfusion device tail end earlier; Its effect is equivalent to that the solution stopping medicine is crossed film 6 and applies extra following suction; To cause bubble to get into the solution stopping medicine and cross film 6 belows, but owing to exist the solution stopping medicine to cross air chamber and exhaustor 8 between film 6 and dropping funnel inner chamber 401 lower end medicinal liquids, this bubble does not get into dropping funnel downcomer 9.Solve if adopt to be inverted the method for actuator, then cause new problem, promptly when aerofluxus finishes the stuck actuator 10 in back; The regulating wheel of retrodicting causes intravenous needle 11 to be inhaled into gas, and the intravenous needle 11 of band gas is that strictness forbids puncturing into human body, if keep intravenous needle 11 no gases; Then can only open actuator 10; Under the situation of intravenous needle 11 ejaculation medicinal liquids, carry out the human body puncture, so, all have critical defect no matter how the nurse selects.
On the basis of embodiment 1, the solution stopping medicine is crossed in the housing 301 that film 6 is arranged at dropper 3 tops.Its middle shell 301 can be one-body molded with dropper 3, also can split be arranged on separately in the conduit on dropper top.It also can reach the technique effect identical with embodiment 1.
Claims (11)
1. transfusion device; Comprise the perforator (1), dropping funnel upper conduit (2), dropper (3), dropping funnel (4), dropping funnel downcomer (9), actuator (10) and the intravenous needle (11) that connect successively; Intravenous needle (11) liquid outlet socket is provided with sealing shroud (12); It is characterized in that between described dropping funnel (4) and the dropping funnel downcomer (9) exhaustor (8) being set; Exhaustor (8) is arranged on the end of dropping funnel inner chamber (401) of dropping funnel (4) steam vent (801) is set at least, and the top of exhaustor (8) is equipped with by making water invade the solution stopping medicine that the profit action material makes to its generation and crosses film (6), and described solution stopping medicine is crossed one group of pore is set on the film (6); The solution stopping medicine is crossed film (6) and is allowed medicinal liquid and gas to pass through; Can stop that diameter in the medicinal liquid passes through greater than the insoluble granule in its capillary aperture, the liquid outlet of described sealing shroud (12) sealing intravenous needle (11), and sealing shroud (12) is provided with air filter (13).
2. a kind of transfusion device as claimed in claim 1 is characterized in that described solution stopping medicine crosses the dropping funnel inner chamber (401) that film (6) is arranged at dropping funnel (4).
3. a kind of transfusion device as claimed in claim 1 is characterized in that described solution stopping medicine crosses in the housing (301) that film (6) is arranged at dropper (3) top.
4. a kind of transfusion device as claimed in claim 1 is characterized in that described solution stopping medicine is provided with thick effect filter membrane (5) above crossing film (6), and the filter opening diameter of slightly imitating filter membrane (5) is 10 μ m～25 μ m.
5. a kind of transfusion device as claimed in claim 1 is characterized in that it is 45～135 degree that described solution stopping medicine is crossed the angle of the axis of film (6) and dropping funnel (4).
6. a kind of transfusion device as claimed in claim 1 is characterized in that it is 0.3mm～3mm that described solution stopping medicine is crossed film (6) thickness, and it is 12mm～50mm that the solution stopping medicine is crossed film (6) diameter.
7. a kind of transfusion device as claimed in claim 1 is characterized in that it is 3 μ m～10 μ m that described solution stopping medicine is crossed the pore diameter of film (6).
8. a kind of transfusion device as claimed in claim 1 is characterized in that described solution stopping medicine crosses the capillarity of the pore of film (6) drawing high of water is higher than 0.4m highly at least.
9. a kind of transfusion device as claimed in claim 1 is characterized in that described exhaustor (8) top is provided with water deflector cover (7).
10. a kind of transfusion device as claimed in claim 1 is characterized in that described steam vent (801) is elongated orifices, and its upper end width becomes the end narrow top width shape structure greater than the lower end width.
11. a kind of transfusion device as claimed in claim 1 is characterized in that described air filter (13) is 7s～20s for ventilation can make automatically full whole the transfusion device time of medicinal liquid, the water infiltrate aeration porous membrane that has water preventing ability and can stop at least to have 0.7m hydraulic pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203368727U CN202263243U (en) | 2011-09-09 | 2011-09-09 | Infusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203368727U CN202263243U (en) | 2011-09-09 | 2011-09-09 | Infusion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202263243U true CN202263243U (en) | 2012-06-06 |
Family
ID=46154055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203368727U Expired - Lifetime CN202263243U (en) | 2011-09-09 | 2011-09-09 | Infusion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202263243U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102350014A (en) * | 2011-09-09 | 2012-02-15 | 浙江康泰医疗器械有限公司 | Infusion set |
| CN103830796A (en) * | 2012-11-26 | 2014-06-04 | 湖南省绿洲惠康发展有限公司 | Disposable automatic liquid stopping and blood returning preventing infusion set free of bubbles |
-
2011
- 2011-09-09 CN CN2011203368727U patent/CN202263243U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102350014A (en) * | 2011-09-09 | 2012-02-15 | 浙江康泰医疗器械有限公司 | Infusion set |
| CN103830796A (en) * | 2012-11-26 | 2014-06-04 | 湖南省绿洲惠康发展有限公司 | Disposable automatic liquid stopping and blood returning preventing infusion set free of bubbles |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CX01 | Expiry of patent term |
Granted publication date: 20120606 |