CN102284102A - Disposable closed deflating blood transfusion device - Google Patents

Abstract

The invention discloses a disposable closed deflating blood transfusion device. In the blood transfusion device, on the basis of the liquid retention phenomenon on the lower section of a transfusion catheter after a dropping funnel of the conventional blood transfusion device is empty, a liquid reservoir capable of containing and storing retention liquid is arranged additionally on the lower section of the transfusion catheter. The disposable closed deflating blood transfusion device is characterized in that: 1, when the dropping funnel is empty and the air enters the transfusion catheter, a liquid path below the liquid reservoir is turned off, and the liquid reservoir is pinched to obtrude the air in the transfusion catheter upwards, so trouble, waste, sickroom pollution and interface contamination which are caused because a liquid outlet interface is repeatedly opened to discharge liquid and air downwards and outwards for replenishing liquid can be avoided, and a small amount of air also can be prevented from entering human bodies through a pintle of a transfusion needle; 2, deflation can be performed without opening the liquid outlet interface, so incidents of blood exposure of patients and professional infection caused by the contamination of exposed blood on hands of the nurses can be avoided; 3, a bag can be washed, so that the liquid can be dropped into human bodies; and 4, the liquid path above the liquid reservoir is turned off and the liquid reservoir is pinched, so that residual liquid is forced to enter the human bodies, and the liquid can be dropped and transfused under the pressure by pinching the liquid reservoir continuously. The disposable closed deflating blood transfusion device is used for continuous transfusion and blood transfusion in clinic.

Description

The disposable enclosed blood exchange transfusion set that cools down

Technical field

The present invention relates to a kind of medical disposable transfusion set (calling the blood exchange transfusion set in the following text), relate in particular to a kind ofly after the fluid drips sky of Murphy type burette intracavity during continuous liquid, that need not open the blood exchange transfusion set goes out disposable enclosed that liquid interface also can eliminate the air that enters in the transfusion lumen continuous liquid blood exchange transfusion set (being designated hereinafter simply as " disposable enclosed cool down blood exchange transfusion set ") that cools down.

Background technology

For a long time, (must set up venous access with common liq before owing to blood transfusion in the clinical transfusion blood transfusion, blood transfusion end eventually needs to use the common liq washing pipe, sometimes also can use the blood transfusion path and drip defeated other medicinal liquid, so (refer to toward blood exchange transfusion set's internal-filling liquid defeated fully) in the preparation title transfusion and blood transfusion), make a problem of nurse's worry be: even the nurse can operate meticulously, [note: the present invention abbreviates it as " dropping funnel " still can not to avoid being arranged on Murphy type burette fully; Abbreviate the transfusion catheter that is fixedly connected on dropping funnel top/blood filter top as " dropper " (note: 1. because of it is the transfusion catheter that is positioned at dropping funnel top/top, so claim dropper; 2. the symbol "/" in the file of the present invention refer to " or "); Be arranged on dropping funnel top, blood filter top, dropper upper end slotting bottle adapter, insert the slotting bottle connecting device that bottle connects pin prior arts such as (containing side opening pin, angle pin and connecting pipe thereof etc.) and be referred to as " connecting a bottle device "; The blood exchange transfusion set's feed liquor path (for example: be set directly at company's bottle device on dropping funnel top or blood filter top, be furnished with blood exchange transfusion set's feed liquor path of the prior aries such as company's bottle device of dropper) that is arranged on each style on dropping funnel top or blood filter top is referred to as " feed liquor interface "; Be fixedly connected on dropping funnel bottom each style prior art transfusion catheter (for example: straight tube shape transfusion catheter, the lower end of its plastic tube is connected with the transfusion catheter of short section colloid pipe, offers the transfusion catheter of grafting dosing three ports etc.) be referred to as " tube for transfusion "; The blood exchange transfusion set's fluid port that is arranged on the prior aries such as mammiform joint, medicated cap button joint, moveable cap button joint, transfusion three-way cock of tube for transfusion end is referred to as out liquid interface (also claiming the tube for transfusion end fitting); The spy gives explanation] enter little air in that tube for transfusion on the bottom and form aeroembolism, sometimes then show as more bubble attached on the tube for transfusion inwall, its main cause is: when nurse's pinching dropping funnel suction infusion vessel (refers to infusion bottle, when transfusion bag) action of interior liquid is violent slightly slightly soon, the liquid-column impingement that water dropper enters the dropping funnel intracavity produces bubble at the liquid that is introduced into the dropping funnel intracavity, at bubble as yet not during the liquid level of emersion dropping funnel intracavity, just the liquid that is accompanied by in the dropping funnel enters in the tube for transfusion, especially those thick liquids, not only be easy to produce bubble, and the speed of bubble floating is very slow, generate easily when in addition, excessively tortuous and topping up speed is slow at tube for transfusion attached wall bubble (this be because liquid be flow forward along the bottom of horizontal/tilting tube for transfusion inner chamber due to) and aeroembolism.For the aeroembolism in the discharge tube for transfusion and/or attached to the bubble on the tube for transfusion inwall, nurse's finger commonly used springing tube for transfusion makes bubble, aeroembolism come-up, when not only its troublesome poeration takes power consumption, and it is often tiny because of tube for transfusion, especially the aeroembolism of tube for transfusion hypomere intracavity is upwards discharged, how undesirable its effect is, this is because aeroembolism is bearing the pressure of its top fluid column, the tension force of its inside is big (just as Fructus Kaki is pressed into Fructus kaki Siccus), make the outer cylinder surface of aeroembolism be close to the tube for transfusion inwall, be difficult to form convection current.Under desperation, the nurse usually is outwards many downwards some liquid of discharging, till discharging fully to the bubble aeroembolism, consequently: not only cause waste, but also can influence therapeutic effect and cause the ward to be polluted.

For a long time, at clinical transfusion, in continued access liquid (the calling continuous liquid in the following text) work of blood transfusion, make patient's psychentonia and nurse that a very worried problem is: empty and in time do not found or when having little time continuous liquid (for example: the on night duty liquid that runs into the multidigit patient of nurse drips sky simultaneously) by the patient in last bottle fluid drips, air can enter tube for transfusion " epimere " intracavity, some problems of Chan Shenging are therefrom: 1. when tube for transfusion epimere intracavity enters " short section " air, responsible nurse makes tube for transfusion become the flat air upwards extruded tube for transfusion on usually tube for transfusion being wrapped at full tilt and oneself pointing from bottom to top, sometimes need the success of repeatable operation ability, its operation very bothers when taking power consumption; 2. when entering " long section " air in the tube for transfusion, the nurse must be opened to liquid interface [referring to separate transfusion needle or extract the tube for transfusion end fitting in the interface of needleless (transfusion) seal nipple] earlier and discharge the stagnant liquid of tube for transfusion hypomere intracavity and the long section air of epimere intracavity downwards, make tube for transfusion topping up again then, then reconnect and proceed to drip and fail, not only its operation very bothers, easily cause interface and ward to pollute, and often the discharge of the strict liquid that limits is arranged and affect the treatment and cause waste because of discharge, the especially precious liquid of liquid or to therapeutic dose; 3. be opened to liquid interface repeatedly and reconnect transfusion needle, not only easily cause little air and enter human body through the transfusion needle pintle, and when operation, stain nurse's hands is stained with by its hemorrhage (being exactly that blood samples of patients exposes in fact) dropping liquid regular meeting that goes out on liquid interface and the transfusion needle pintle, and the danger that is infected (occupation is infected) by accident is arranged; 4. drip the problem that can enter air in the tube for transfusion of empty back owing to worry dropping funnel, the nurse often needs to make an inspection tour continually; Especially patient and accompany the people always to worry that air can enter human body and feels fear and raise a cry of warning and influence other people and have a rest, or the liquid in infusion bottle is just called when not dripping off as yet and is urged the nurse to change liquid or pull out pin for it, nurse or pull out pin because of the busy liquid of being with, this shows nurse, patient and accompany people three parts that psychological burden is all arranged; Nurse particularly, in fact the process of whole working is exactly a kind of process of height psychentonia.For preventing medical care problem, permitted great medical institutions nurse's office desk and chair not is set, the nurse is maked an inspection tour without a break; Designer of the present invention heard once that Guangzhou several nurses of Affiliated Hospital of medical university complained its unit 5. be opened to liquid interface repeatedly and carry out the discharge opeing aerofluxus, destroyed transfusion device, blood exchange transfusion set's seal, do not meet the essence spirit of transfusion and blood transfusion health; 6. for preventing the trouble due to the tube for transfusion air inlet, drip when defeated when adopting transfusion bag, overwhelming majority nurse is that deliberately the pilot port of the company's of opening bottle device or attached being assigned in of not planting are not plugged in the connecting pipe that bottle connects pin, its result can cause in the transfusion bag, generate residual liquid in dropping funnel and the whole piece tube for transfusion, nurses often are with liquid to pull out pin because of the patient calls, or abandon in the lump together with the residual liquid of transfusion bag, transfusion device and intracavity thereof, according to survey, generally all 20 milliliters upper and lower, this is the unacceptable but problem of inconvenient processing.

For a long time, in clinical transfusion/blood transfusion work, perplexing another problem of nursing the boundary is: behind the fluid drips sky of dropping funnel intracavity, tube for transfusion hypomere intracavity have the fluid stagnation phenomenon [the liquid holdup phenomenon that the tube for transfusion hypomere is presented behind the last bottle fluid drips sky, the present invention abbreviates it as " liquid stagnates "; The liquid holdup phenomenon that the tube for transfusion hypomere was presented when transfusion/blood transfusion finished, the present invention abbreviates it as " residual liquid "; Explanation hereby], its main cause is: there is pressure in intravenous; Secondly, its residual liquid/dispersed phase holdup what may with the individual variation of venous pressure, the viscosity of liquid, the proportion of liquid, the thickness degree of tube for transfusion, the length of tube for transfusion [for example: the transfusion device that is provided with dropper, its tube for transfusion of blood exchange transfusion set is shorter relatively, do not establish the dropper transfusion device of (referring to be directly arranged on the dropping funnel roof) with connecting the bottle device, its tube for transfusion of blood exchange transfusion set is longer relatively], position during patient's transfusion/blood transfusion, the position of transfusion, the height that infusion bottle hangs and the circuitous degree of sinuous song of tube for transfusion hypomere etc. are relevant, and (therefore, " tube for transfusion epimere " of the present invention is meant the empty tube for transfusion of that section that enters air after the fluid drips sky of dropping funnel intracavity; " tube for transfusion hypomere " of the present invention is meant that section tube for transfusion that presents stagnant liquid/residual liquid phenomenon after the fluid drips sky of dropping funnel intracavity, and it is for the empty tube for transfusion of that section of the liquid liquid level top that stagnates.So " tube for transfusion epimere " of the present invention reaches " tube for transfusion hypomere " is a generalized concept, also can be described as a kind of replacement speech, describing so can be too not awkward-sounding, be not that tube for transfusion is equally divided into 3,5,7,9 ... " epimere " shown in after the section reaches " hypomere ", and neither divide tube for transfusion equally is 2,4,6,8 ... " epimere " shown in after the section reaches " hypomere ".In other words, the present invention's so-called " tube for transfusion epimere " is meant when transfusion and blood transfusion, as far as possible the position of infusion bottle, transfusion bags is heightened, make tube for transfusion be in vertical state substantially, make not overbending of tube for transfusion in other words, in this case, the empty tube for transfusion of that section that is presented after the fluid drips sky of its dropping funnel intracavity, so " tube for transfusion epimere " of the present invention reaches " tube for transfusion hypomere " is relative, its length is roughly, is not the epimere and the hypomere of traditional sense; Below no longer repeat specification).Especially precious liquid or have the residual and children's of the strict liquid that limits to drip residual and vial of liquid residual of the liquid when defeated to therapeutic dose not only can cause waste, and can affect the treatment.

1. " nursing is studied " delivered one piece of scientific research paper that exercise question is " discussion of the empty post-processing approach of fluid drips in the Murphy type burette " in the 357th page of the 15th the 6th phase of volume of June calendar year 2001; 2. " nurse studies magazine " rolled up the 11st page of the 1st phase in 1998 the 13rd phases and delivered one piece of scientific research paper that exercise question is " eliminate micro-air during venous transfusion and enter the venous experimentation "; 3. " practical nursing magazine " (being sponsored by Ministry of Public Health) delivered one piece of scientific research paper that exercise question is " discharge method of long section air under the infusion process Murphy type burette " in the 54th page of the 19th the 3rd phase of volume of March in 2003; 4. " Chinese practical nursing magazine " (being sponsored by Chinese Medical Association) delivered the scientific research paper of one piece of exercise question for " the quick blind enema of venous transfusion " in the 69th page of 1 day the 21st January in 2005 volume version in the 1st first half of the month phase; The objective reality that not only shows the above-mentioned defective of existing transfusion and blood transfusion utensil has especially reflected numerous medical personnel showing great attention to the existing existing above-mentioned defective of transfusion and blood transfusion utensil.Other it should be noted that a situation is, above-mentioned research mostly concentrates on the aspect to the discussion of the using method of existing transfusion and blood transfusion utensil, does not propose the improvement of configuration aspects.

Be the continuous liquid inconvenience of avoiding the tube for transfusion air inlet to be caused, The First Affiliated Hospital of Kunming Medical School emergency department adopts the conduit of double headed roller pin that several bottles of liquid are ganged up (series connection) and infuses together, but not all liquid can be ganged up mixing, and also has the arrangement of sequencing when fluid infusion.

The Vasculocardiology Deparment CCU of (Guangzhou) No.1 Hospital Affiliated to Zhongshan Univ. has used a kind of advanced person's infusion pump in recent years, have that fluid drips in the liquid container is empty reports to the police, regulates multiple functions such as dripping speed and control transfusion total amount automatically, but when transfusion finishes, still exist tube for transfusion hypomere intracavity to have the problem of residual liquid; Higher because of its cost in addition, be difficult to spread to public ward in a short time, especially the medical institutions of economically underdeveloped area.

State Intellectual Property Office on April 2nd, 2002 announced a kind ofly integrate general transfusion, microdroplet transfusion, pressure transfusion, anti-liquid residue, resistant to blood backflows and infusion bottle drips empty advanced transfusion device (patent name: disposable multifunction safe transfusion system of closing automatically, the patent No.: ZL02231787.2), its defective is: 1. because dropping funnel top " terminal phase of intravenous injection device for auto closing valve " inlet of close transfusion device automatically has the new problem that causes having in dropping funnel and the whole piece transfusion lumen residual liquid when the transfusion end; 2. in the preparation of transfusion and blood transfusion, (refer to be equipped with defeated) toward transfusion device, blood exchange transfusion set's internal-filling liquid, because the negative pressure that its intracavity generated behind the pinching dropping funnel can make " terminal phase of intravenous injection device for auto closing valve " to be in closed condition, and the defective that causes being difficult in dropping funnel and the transfusion lumen topping up is arranged.

(the patent No.: ZL00239693.9 that State Intellectual Property Office has announced a kind of " anti-liquid residue formula transfusion device ", the day for announcing: calendar year 2001 JIUYUE 26 days) and a kind of " disposable anti-liquid residue formula pressure transfusion/blood device " (patent No.: ZL03223871.1, the applying date: on March 3rd, 2003), its defective is: 1. the cost of two of its key technology anti-adverse current check valves is higher; 2. in the middle of the patient who is in hospital, drip continuously every day defeated more than two bottles the patient of liquid in the majority, because its dropping funnel upper and lower respectively has an anti-adverse current check valve, when entering air in the empty discovery of the last bottle fluid drips transfusion lumen, even if short section air or bubble, can not go up row, can only adopt the method that is opened to liquid interface to discharge transfusion lumen interior stagnant liquid and air downwards; Because the discharge of stagnant liquid or repeatedly discharge can affect the treatment and cause waste on the contrary, so think, should " anti-liquid residue formula transfusion device " reach " preventing liquid residue formula pressure transfusion/blood device " suitable patient's use of dripping defeated one bottle of precious liquid; If the 3. discharge of chemotherapy medicinal liquid also can cause the ward to be polluted; 4. be opened to liquid interface repeatedly and reconnect, cause easily not only that interface pollutes and little air enters human body through the transfusion needle pintle, and the hemorrhage dropping liquid regular meeting on its pintle is stained with stain nurse's hands, the danger that is infected (occupation is infected) by accident is arranged; 5. can not rinse the bottle chamber of precious liquid and wash and splash into human body, for example: one bottle 50 milliliters albumin is 500 yuan, and the bottleneck bottleneck is exactly 5 yuan for residual 0.5 milliliter, and residual 1 milliliter is exactly 10 yuan.

Each introduction of (Guangzhou) No.1 Hospital Affiliated to Zhongshan Univ.'s Vasculocardiology Deparment and emergency department has in recent years been used a kind of disposable fine setting transfusion device and (has also been claimed " disposable titration adjusting transfusion device ", the place of production is respectively: Irish Abbott Laboratories company limited and Spain), characteristics are: can (belong to the category that manual adjustments consumptive material class is dripped velocity modulation joint valve gear because titration actuator and habitual race folder formula are dripped fast actuator according to doctor's advice and titration actuator, so the present invention is referred to as it " dripping fast actuator ", so-called " titration actuator ", a kind of exactly adjustable type of transferring the files drips fast actuator) the disposable milliliter number that per hour sets that fast regulates exactly of sign on the handle, screw handle one thoughtful dead point and can be transferred to maximum, be minimal to and close, thoroughly exempted the nurse and seen the clock and watch number and drip number and regulate race folder formula back and forth and drip the trouble that fast actuator brings, but these two kinds of advanced persons' disposable fine setting transfusion device exist equally dropping funnel drip empty back tube for transfusion epimere intracavity can enter the problem of air and transfusion when finishing tube for transfusion hypomere intracavity the problem of residual liquid is arranged.

Tube for transfusion hypomere intracavity had the problem of residual liquid when the disposable titration tubular type transfusion device of the popular use of China's medical institutions' department of pediatrics at present existed problem that tube for transfusion epimere intracavity behind the fluid drips sky in the dropping funnel can air inlet and terminal phase of intravenous injection equally.

Patent Office of State Intellectual Property Office has announced a kind of patent of invention (patent name: transfusion device exhaustor on November 22nd, 2000, the applying date: 2000.01.21, the patent No.: ZL00222169.1), its defective is: 1. drip continuously defeated (changing-over) many bottles of liquid or add when pushing away medicinal liquid as the patient with severe symptoms, airway 3 be must open repeatedly and aerofluxus or dosing carried out, have and cause that liquid spill and interface is stained with the possibility of stain, this is because the pressure of exhaustor 8 inner chambers comes from advancing of it, liquid outlet, that is to say on its input duct fluid pipeline switch all is not set, inconvenience control, to carry out the discharge opeing aerofluxus identical with being opened to liquid interface for its exhaust mode, and it also is a kind of open deflated infusion set in a word; Even if 2. the connection tube 2 of exhaustor 8 bottoms of second kind of embodiment does not put in the intracavity of exhaustor 8, the also problem that can cause the residual liquid amount to increase, this is because exhaustor 8 is containers, special-purpose anti-residual liquid device (for example, exhaustor 8 can be sling and then can make the residual liquid of its intracavity import the suspender etc. of human body naturally) is not set; In case 3. enter air in the exhaustor 8, must open airway 3 discharges the method that its discharge or employing are opened to liquid interface (exhaustor 8 as shown in Figure 3) downwards with air, this is because the connection tube 2 on exhaustor 8 tops has put in the intracavity of exhaustor 8, can not upwards thoroughly discharge the air of (drive in the wrong direction and discharge) exhaustor 8 intracavity through tube for transfusion, be accompanied by liquid constantly enter or when exhaustor 8 changing positions, the air that are trapped in the exhaustor 8 have the danger that enters human body.

The patent No. is that ZL200420082693.5 disposable uses negative pressure fluid stopping transfusion device (Granted publication day 2005.10.12) and the patent No. to end liquid transfusion device (manufacturing enterprise: Europe, Zhejiang health care spirit armarium company limited automatically as the disposable use of ZL200320131818.4, phone: defective 0576-85289098) is: not only can not be with the residual liquid input human body of tube for transfusion hypomere intracavity, and when transfusion finishes, can cause generating in the whole piece tube for transfusion residual liquid, especially medicinal liquid and the infantile infusion in the fractional pack small container, its residual liquid amount is relatively large with the ratio of setting amount of infusion, and responsible medical worker is difficult to accept.

For a long time; in the nursing procedure at the whole end of transfusion and blood transfusion; the nurse understands usually that one bottle of common liq of changing-over carries out washing pipe in order to avoid waste; but because existing blood exchange transfusion set (as: Weihai City Medical High Polymer Co., Ltd; Zhejiang Lingyang Medical Appliances Co., Ltd; ShangHai ShuangGe Industry Co., Ltd of the two Columba livia group of China; GuangDong LongXin Medical Appliance Co., Ltd; the Jiangxi flood reaches blood exchange transfusion set's product of producers such as medical apparatus and instruments company limited) can not rinse transfusion bags and wash and splash into; the nurse normally will be attached in the bag and the blood that remains in the bag mouth bag neck abandons in the lump with bag; not only cause waste, and can affect the treatment.In addition, when this very red bloodstained transfusion bags is dropped, not only can cause psychology to stimulate, and the medical worker also can feel unfortunately with helpless to the patient.The reason that residual liquid generates in the transfusion bags is: 1. blood is viscous liquid, easily sticks on the transfusion bags inwall and toward current downflow; 2. can enter air for preventing that dropping funnel from dripping in the tube for transfusion of empty back, part nurse in the operation of blood transfusion, deliberately the do not plant connecting pipe or the pilot port of companys of opening bottle device not, because the bag mouth support has strutted near the bag wall it, is accompanied by the outflow of blood and generates due to the negative pressure; Can there be difference in what of its residual liquid because of the quantity of bag mouth and the difference of transfusion bags specification and production method, mostly between the 10-15 gram.

During the underway minor operation of the operating room of part hospital (as Guangdong Provincial TCM Hospital), custom is dripped defeated with blood exchange transfusion set and common liq (as Dextrose and Sodium Chloride Inj. etc.), just changing-over transfusion bags is where necessary transfused blood, because the mesh of blood filter is relatively large, the foreign body microgranule that may exist in the medicinal liquid has the defective that enters human body.

Summary of the invention

Mode of thinking of the present invention is a reverse thinking, innovation mode of the present invention is for adding invention, the objective of the invention is to solve dropping funnel existing blood exchange transfusion set drip empty after its tube for transfusion epimere intracavity can enter long section air and cause the problem that continues liquid inconvenience, design principle of the present invention be utilize existing transfusion device, blood exchange transfusion set's dropping funnel drip empty after the stagnant liquid phenomenon that presented of its tube for transfusion hypomere intracavity design, provide a kind of and need not be opened to the blood exchange transfusion set that liquid interface also can eliminate the air in the transfusion lumen.The present invention also aims to: 1. the blood exchange transfusion set who is provided can be with the input of the residual liquid in transfusion bags, tube for transfusion hypomere human body; 2. the blood exchange transfusion set who is provided can not only carry out the pressure transfusion blood transfusion, and can avoid the patient that the blood incident takes place and cause danger, and then can avoid exposing blood and be stained with the occupation that stain nurse's hands may cause and infect; 3. when adopting this blood exchange transfusion set to drip loading liquid, the foreign body microgranule that may exist in can the filtering medicinal liquid can avoid generating in transfusion bag and the whole piece tube for transfusion residual liquid.

The present invention has solved above-mentioned technical problem by a kind of disposable enclosed blood exchange transfusion set that cools down is provided, and feed liquor interface, blood filter, dropping funnel, tube for transfusion that it was connected mutually by (as everyone knows), goes out liquid interface and the liquid reservoir newly established at the tube for transfusion hypomere is constituted; Described feed liquor interface can be connected perforation with the bag mouth (it comprises the bottleneck of infusion bottle) of transfusion bags; Described liquid reservoir is a kind ofly can admit and store tube for transfusion hypomere intracavity and be detained liquid and can manually repeat extrusion (contain grab crowded, extrusion, pinching, push) and can repeat to get rid of its intracavity delay liquid (manual pump formula) liquid container for the nurse, the volume of described liquid reservoir equals the volume of tube for transfusion epimere inner chamber at least, and (note: it contains following selection, 1. greater than the volume of whole piece tube for transfusion inner chamber; 2. equal the volume of whole piece tube for transfusion inner chamber; 3. greater than the volume of tube for transfusion epimere inner chamber but less than the volume of whole piece tube for transfusion inner chamber; 4. equal the volume of tube for transfusion epimere inner chamber), the inner chamber of described liquid reservoir and the inner chamber of tube for transfusion connect; Describedly go out liquid interface and can [refer to the intravenous transfusion needle set of human implantable with the transfusion needle set, as transfusion needle, blood taking needle, venous infusion catheter, needleless (transfusion) seal nipple etc.] the feed liquor interface be connected to connect that [note: designer of the present invention has consulted pertinent literature with regard to essential features problem of the present invention and specially interviewed Guangzhou Tumor Hospital Attached to Zhongshan Univ. VIP Clinic and recruited favour virtue nurse practitioner long, the cardiovascular surgery CCU Xue Wei of Guangzhou No.1 Hospital Affiliated to Zhongshan Univ. China nurse-in-charge, nurse-in-charge comrade Luo Qiyu of Genneral Surgery of attached overseas Chinese hospital of former Ji'nan University, good nurse practitioner of the surgery Zhu Mu of out-patient department of Guangdong People's Hospital and Guangdong Provincial TCM Hospital operating room Li Lan nurse-in-charge think that existing blood exchange transfusion set does not comprise transfusion needle and drips fast actuator.Its main foundation that does not comprise transfusion needle is: 1. the connected mode between transfusion needle and the existing blood exchange transfusion set not only is flexible connection, and has the transfusion needle product of different model and independent packing to match for medical personnel temporarily; 2. in recent years, new techniques such as transfusion catheter, needleless (transfusion) seal nipple, transfusion three-way cock are rapidly developed and extensive use, even be furnished with transfusion needle in blood exchange transfusion set's the packaging bag, and also can it is discarded; 3. Chinese pair of ShangHai ShuangGe Industry Co., Ltd of Columba livia group (address: No. 1888, HuHang Highway, ShangHai FengPu, exchange: 021-67104888, fax: the packing crates of blood exchange transfusion set's product 021-67104666) is marked with the band pin or not with the printed words of pin, illustrate that this enterprise has two class blood exchange transfusion set products at least, and then can show that transfusion needle is not blood exchange transfusion set's necessary parts; 4. emergency department of Guangdong People's Hospital has used the blood taking needle that a kind of centre is provided with Active Interface in recent years, blood sampling (check) finishes the cannula needle separation is discarded, pipe bolt with Active Interface is socketed on the tube for transfusion end fitting then, need not connect transfusion needle separately just can drip defeated, both reduce the patient suffering, reduced the nurse job amount again; 5. " Chinese practical nursing magazine " (being sponsored by Chinese Medical Association) published the scientific research paper of one piece of exercise question for " can come the novel clinical use of good fortune (needleless seal nipple) " in JIUYUE, 2006 on the 54th page of the 22nd volume version in the 9th the first tenday period of a month phase; " Modern Nursing magazine " published one piece of scientific research paper that exercise question is " application of needleless transfusion system in the child vein retained transfusion " November calendar year 2001 at the 7th volume o. 11th 62-63 page or leaf, shows that all existing blood exchange transfusion set, transfusion device do not comprise transfusion needle.It does not comprise that the foundation of dripping fast actuator is: primary latex tubing transfusion device both had been used for transfusion, also be used for blood transfusion (now adopting now defeated), it is to regulate by the height of regulating transfusion kettle (bottle) to drip speed, the professional had set up metal screw (twin screw) folder formula in succession and had dripped fast actuator (can assemble at any time or remove) on the outer wall of latex tube for transfusion afterwards, on the plastic infusion pipe, set up race folder formula and dripped fast actuator (plastic), made things convenient for nurse's operation to a great extent; But what occurred a kind of advanced person in recent years movablely is connected out that liquid interface (tube for transfusion end fitting) is gone up and the transfusion that has a titration actuator (dripping fast actuator for a kind of adjustable type of transferring the files) prolongs and manages (import) product for clinical use (manufacturer: Irish Abbott Laboratories company limited), can fast regulate the milliliter number that per hour sets exactly according to labelling on the titration actuator and doctor's advice, thoroughly having exempted the nurse is seeing the clock and watch number and drips number and regulate race folder formula back and forth and drip the trouble that fast actuator brings, not only saved trouble but also safety, and existing blood exchange transfusion set, race folder formula on the infusion apparatus product is dripped fast actuator and is often abandoned.Therefore, can think that existing blood exchange transfusion set, transfusion device do not comprise a fast actuator.Certainly, if Patent Office thinks that the present invention lacks necessary parts and lacks essential features in other words, welcome clear and definite (directly) in revisal or notification of examiner's opinion points out that (need not analyze or discuss) lacked certain parts, designer of the present invention will give and respecting fully, and it can be included explanation hereby].

Further again, selection and version for described liquid reservoir, and it is unrestricted, because of its a kind of liquid container of special use only, if it can hold certain amount of fluid and be convenient to that medical personnel manually repeat to extrude and the stagnant liquid that can repeat to get rid of its intracavity with satisfy the needs of cooling down and cost low be easy to make just passable.For example: its preferred constructive form can be that a kind of (it is contained and has certain elastic medical flexible material by the medical flexible material, for example: colloidal materials, existing transfusion device, blood exchange transfusion set's material therefor etc. all can adopt) olive shape liquid reservoir, fusiformis liquid reservoir, tubular liquid reservoir, flat tube shape liquid reservoir, dish-shaped liquid reservoir or the spherical liquid reservoir made; Its alternative arrangements form can be a kind of syringe-like liquid reservoir.

As a kind of improvement of the present invention, described disposable enclosed cool down the blood exchange transfusion set can comprise on a kind of liquid road that is arranged on described liquid reservoir top on the liquid road of (referring to the tube for transfusion, feed liquor interface of liquid reservoir top etc.) or below (refer to the liquid reservoir below tube for transfusion, go out liquid interface etc.) (note: 1. it is contained race folder formula and drips fast actuator, titration actuator, and the movable consumptive material class that is connected out prior arts such as titration actuator on the liquid interface and transfusion prolongation pipe thereof is dripped fast actuator to drip the fast actuator that drips of speed for nurse's manual adjustments; 2. the reason of dripping fast actuator is set is: can save a little Packaging Resources, be convenient to nurse's operation, use for public ward and economically underdeveloped area medical institutions).

Further again, in the time of on the liquid road above described fast actuator is positioned at liquid reservoir, then the liquid road below its (referring to liquid reservoir) is provided with the switch (the fast actuator that drips that contains one-hand operation) that can open and close its (liquid road that refers to the liquid reservoir below).When described fast actuator be positioned on the liquid road of liquid reservoir below and for singlehanded control drip fast actuator the time, then its (referring to liquid reservoir) top the liquid road be provided with the switch that can open and close its (liquid road that refers to the liquid reservoir top) (contain can one hand or bimanualness drip fast actuator).When described fast actuator be positioned on the liquid road of liquid reservoir below and for both hands control drip fast actuator the time, then all be provided with the switch (containing the fast actuator that can singlehanded control) that can open and close them on the liquid road of its top and below.

As of the present invention another improve, on the liquid road of described liquid reservoir top or the top of liquid reservoir is provided with on a kind of liquid road that can be suspended on its (referring to liquid reservoir) top its (referring to liquid reservoir) and can makes the stagnant liquid of its (referring to liquid reservoir) intracavity import the liquid reservoir suspender of human body naturally.

Further, with regard to the shape of described liquid reservoir suspender, and unrestricted, as long as it can and hang just passable with the liquid reservoir pull-up.For example: it both can be arranged on the liquid road of liquid reservoir top or the hook on liquid reservoir top, also can be arranged on the liquid road of liquid reservoir top or the liquid reservoir suspender of tube for transfusion engaging nail, transfusion pipe support, tube for transfusion buckle, the formula of fishing liquid reservoir suspender or other habitual shape on liquid reservoir top.

As another kind of improvement the of the present invention, when described feed liquor interface was " Y " shape feed liquor interface, the wherein arm that is somebody's turn to do " Y " shape feed liquor interface top was provided with a liquid medicine filter and is used for dripping loading liquid, and another root arm is used for the blood transfusion conversion.

As another improvement of the present invention, the outer wall of described liquid reservoir is provided with and can makes its (referring to liquid reservoir) attached to the liquid reservoir fixture on patient's limbs.

Further, with regard to the shape of described liquid reservoir fixture, and unrestricted, as long as it can be fixed on liquid reservoir on patient's limbs just passable.For example: it both can be a kind of wrist-watch belt liquid reservoir fixture that is arranged on the liquid reservoir outer wall, also can be arranged on the liquid reservoir fixture of ears shape liquid reservoir fixture, muscle shape wrist-watch belt liquid reservoir fixture or other habitual shape on the liquid reservoir outer wall, the simplest fixed form is used rubberized fabric adhere exactly.

Its using method is: at first set up venous access, changing-over transfusion bags is then transfused blood, and meanwhile rests liquid reservoir on the sick bed or is fixed on patient's limbs.1. when entering air in the empty discovery of the last bottle fluid drips tube for transfusion, at first close the liquid road of liquid reservoir below, pinch liquid reservoir again, just can eliminate the air in (upwards going out) tube for transfusion, then close the liquid road of liquid reservoir top, in case air enters in the tube for transfusion once more, change liquid/continuous liquid (when not establishing switch on the liquid road of liquid reservoir below, can continue liquid earlier then cool down) then; Owing to be the air in the tube for transfusion to be driven in the wrong direction for pumping in the infusion bottle or transfusion bags that drips behind the sky, need not be opened to liquid interface and just can cool down, so title " enclosed is cooled down "; When 2. finding in the tube for transfusion aeroembolism to be arranged in the preparation of transfusion and blood transfusion, palpus inversion dropping funnel row is again cooled down, and after cooling down dropping funnel is restored to the original state, in case liquid too much floods water dropper in the dropping funnel; When 3. blood transfusion is last eventually, close the liquid road of dropping funnel below earlier, again the position of transfusion bags is turned down and carry out lavation and splash into human body; 4. when continued access last bottle on same day liquid, smoothly liquid reservoir is suspended on the liquid road of liquid reservoir top, its height can be imported human body degree of being naturally with the stagnant liquid of liquid reservoir intracavity, with the stagnant liquid of its intracavity of emptying; When in the liquid road below transfusion and blood transfusion finishes the discovery liquid reservoir residual liquid being arranged, at first close the liquid road of liquid reservoir top, gently pinch liquid reservoir again, when observing residual liquid and enter human body, nurse's another hands is closed the liquid road of liquid reservoir below immediately with blood return prevention, pulls out transfusion needle then and finishes transfusion and blood transfusion; 5. the liquid road and the pinching liquid reservoir that alternately open and close the liquid reservoir top can carry out pressure transfusion blood transfusion rescue patient.

The present invention compares with transfusion, the blood exchange transfusion set of background technology, and its advantage is: 1. can avoid being opened to trouble, liquid waste and the ward pollution that liquid interface is caused to the exterior liquid aerofluxus downwards; 2. can avoid because of repeating to be opened to liquid interface and reconnect the little air that transfusion needle may cause to enter human body, and then can avoid the nurse frequently to make an inspection tour, the doctor that meanwhile can also releive, suffer from, accompany tripartite mental pressure through the transfusion needle pintle; 3. can avoid the hemorrhage dropping liquid on contingent blood incident of patient (blood flows out from the transfusion needle pintle when referring to be opened to liquid interface) and the transfusion needle pintle to be stained with stain nurse's hands, and then eliminate the nurse is infected (the professional infection) by accident danger; 4. can not only avoid generating residual liquid in transfusion bag and the whole piece tube for transfusion, and the residual liquid of tube for transfusion hypomere intracavity can be forced into human body; The seal that can keep blood exchange transfusion set's inner chamber meets the essence spirit of transfusion and blood transfusion health; 5. can rinse bag and splash into human body, can avoid blood to be attached in the transfusion bags chamber and remain in the waste that is caused in bag neck bag mouth; 6. need not change bottle and just can rinse bag, pollute on the liquid road that can avoid the heavy multiple bottleneck gag that punctures again to cause; 7. can utilize liquid reservoir to pressurize to drip defeated; 8. do not influence the topping up function of dropping funnel; 9. when dripping loading liquid with it, the foreign body microgranule that may exist in can the filtering medicinal liquid; 10. with low cost, simple in structure, definite effect is easy to make, and is easy to use.

Description of drawings

The professional and technical personnel understands the present invention for ease of this area, describes design of the present invention in detail below in conjunction with six kinds of specific embodiment of eight accompanying drawings.

Fig. 1 is the structural representation of first embodiment of the invention.

Fig. 2 is shown in Figure 1, the elevational schematic view of its dish-shaped liquid reservoir.

Fig. 3 is the structural representation of second embodiment of the invention.

Fig. 4 is the structural representation of third embodiment of the invention.

Fig. 5 is the structural representation of four embodiment of the invention.

Fig. 6 is the structural representation of fifth embodiment of the invention.

Fig. 7 is shown in Figure 6, the structural representation of the another kind of embodiment of its liquid reservoir.

Fig. 8 is the structural representation of sixth embodiment of the invention.

The specific embodiment

Embodiment 1:

Fig. 1,2 shows first embodiment of the invention.Its feed liquor interface 2 is made of the connecting pipe 5 (practise claim exhaustor, real be air inlet pipe, plays a part to conduct and balance infusion bottle external and internal pressure, so the title connecting pipe) that connects bottle device 1 (the side opening pin is prior art), dropper 3 and be furnished with air filter 7.Even it is defeated to adopt transfusion/blood bag to drip, the connecting pipe 5 of also should planting is wasted in case generate (negative pressure) residual liquid in bag shoulder, bag neck and the bag mouth of transfusion/blood bag.Blood filter 4 is positioned at the top of dropping funnel 6.Tube for transfusion 15 epimeres are equipped with can singlehandedly regulate a fast actuator 10 (existing consumptive material class is dripped fast actuator and all can be adopted) that drips speed.Tube for transfusion 15 is that the short section colloid pipe 12 by the plastic tube 9 on its top and bottom is constituted (for prior art).The effect of short section colloid pipe 12 is: 1. during venipuncture pinching it can make it blood back, to confirm whether success of puncture; 2. but malleation is pulled out pin, that is pin is pulled out on pinching limit, limit in case ecchymoma or pin mouth oozing of blood.The mammiform joint 11 of taking out liquid interface is prior aries.The hypomere of tube for transfusion 15 is provided with a dish-shaped liquid reservoir 13 of being furnished with ears type liquid reservoir fixture 14, and its volume equals the volume of tube for transfusion 15 epimere inner chambers at least.The liquid road of top/top of dish liquid reservoir 13 is provided with on the liquid road that an energy is suspended on dish-shaped liquid reservoir 13 its top and can makes the residual liquid of its intracavity import the liquid reservoir suspender 8 (hook) of human body naturally.With respect to the fast actuator 10 that drips on the liquid road, dish-shaped liquid reservoir 13 top, the fast actuator 10 that the liquid road (tube for transfusion) of its below is provided with a switch or can singlehanded controls.Its using method is: when previous infusion bottle drips the 15 epimere air inlets of sky discovery tube for transfusion, the liquid road of closing (also can roll over and close) dish-shaped liquid reservoir 13 belows earlier is pinching dish liquid reservoir 13 again, just the pump that the air of tube for transfusion 15 epimere intracavity can be driven in the wrong direction advance in (upwards rushing in) infusion bottle after dripping sky, then close the liquid road of dish-shaped liquid reservoir 13 tops in case air enters tube for transfusion pipe 15 epimeres once more, continue liquid then and drip defeatedly, cool down after also can continuing liquid earlier.During continued access last bottle on same day liquid, smoothly dish-shaped liquid reservoir 13 is hung up, to drip the stagnant liquid of empty its intracavity.Terminal phase of intravenous injection, close the liquid road of dish-shaped liquid reservoir top earlier, then the nurse hands pinching dish liquid reservoir 13 can be forced the residual liquid in its liquid road, below into human body, when observing residual liquid and enter human body, nurse's another hands is closed the liquid road of dish-shaped liquid reservoir below immediately with blood return prevention, pulls out transfusion needle then and finishes transfusion.

Two situations that also must illustrate in addition, are: 1. also be fine with connecting pipe 5 common formation feed liquor interfaces if will bottle device 1 be set directly at the top of blood filter 4; 2. participate in constituting taking in other words and describedly go out liquid interface and be exclusively used in the grafting remaining needle and so also be fine if connect a syringe needle or transfusion needle at the end of tube for transfusion 15.

Note: the using method of following examples and the function of associated components etc. are identical with embodiment, no longer are repeated in this description.

Embodiment 2:

Fig. 3 shows second embodiment of the invention.The burette 22 (be prior art, more because of style, do not draw one by one) of taking company's bottle device 20, the dropper 16,23 of feed liquor interface 18 and indicating metering scale labelling 21 is arranged on dropping funnel 25 tops; It is for dropping funnel for so-called " feed liquor interface ".Switch on the dropper 16 or a fast actuator 10 are to be used for control to adopt liquid, transfusion total amount; Burette 22 is provided with suspender 17.Burette 22 inner chambers are provided with blood filter 19.Water dropper (microdroplet water dropper) the 24th aims at children's and drips defeated and establish (for prior art).The fusiformis liquid reservoir 34 that is provided with muscle shape wrist-watch belt liquid reservoir fixture 35 is positioned at tube for transfusion 28 hypomeres, the liquid road of its top is provided with switch 27, drip fast actuator 33 (for the titration actuator of the prior art adjustable type of transferring the files in other words drips fast actuator but the liquid road of its below is provided with that switch 27 and both hands control, its upper and lower can be made the stone grinder formula and relatively rotate and regulate, and screws and a week can transfer to maximum, is minimal to and closes).Take out that moveable cap button joint 31 of liquid interface, its medicated cap is buckled 30 (nuts) and not only can be relatively rotated as horizontal direction around the vertical pivot of joint 29, and can slide up and down along that outer wall of joint 29 inlets 32, its positive effect is: not only can connect with the spiral shell button-type pintle rank (revolving) of transfusion needle, and can be for infundibulate pintle (the being prior art) socket of the sort of transfusion needle that has the disjunctor protecting cover.The liquid road of fusiformis liquid reservoir 34 tops is provided with (formula of fishing) liquid reservoir suspender 26.Dropping funnel 25 can certainly be set directly on the diapire of burette 22, and then can omit dropper 23.

Embodiment 3:

Fig. 4 shows third embodiment of the invention.(two) that take the feed liquor interface connect bottle device 36 and " Y " shape dropper 38 and are linked in sequence and are arranged on dropping funnel 39 tops.The hypomere that offers the tube for transfusion 41 of grafting dosing three ports 43 is provided with flat tube (referring to its a cross section ovalize) shape liquid reservoir 44 of being furnished with wrist-watch belt liquid reservoir fixture 45, and the liquid road of flat tube shape liquid reservoir 44 belows is provided with a switch or the fast actuator 10 that can singlehanded control.The medicated cap button joint 42 (for prior art) of taking out liquid interface is arranged on tube for transfusion 41 ends.Medicated cap button joint 42 is with the difference of moveable cap button joint 31: it is to slide up and down along that outer wall of joint inlet that the medicated cap of medicated cap button joint 42 is buckled.The liquid road of flat tube shape liquid reservoir 44 tops is provided with (two) and can stops the mobile switch of its intracavity liquid or drip fast actuator 10, and " Y " shape dropper 38 is provided with a liquid medicine filter 37, is used for liquid transition, rinses bottle and rinse bag, anti-residual liquid control; When rinsing the bottle chamber of washing precious liquid, can earlier filling liquid be turned down in its position; Also can regulate and drip the speed use for tall person nurse.The top of flat tube shape liquid reservoir 44 is provided with a liquid reservoir suspender 46 (tube for transfusion buckle), during continued access last bottle on same day liquid, smoothly it is mentioned, then its strand is stuck in the tube for transfusion epimere so that can make the stagnant liquid in the flat tube shape liquid reservoir 44 import human body naturally.The intracavity of dropping funnel 39 is provided with blood filter 40.Close earlier drip fast actuator 10 again pinching flat tube shape liquid reservoir can eliminate air in the grafting transfusion device tube for transfusion.

Embodiment 4:

Fig. 5 shows four embodiment of the invention.Its feed liquor interface is made of dropper and company's bottle device 47 of being arranged on dropper upper end; The hypomere of the tube for transfusion 56 of dropping funnel 6 bottoms is provided with a spherical liquid reservoir 54 of being furnished with ears type liquid reservoir fixture 55, and the inner chamber of its inner chamber and tube for transfusion 56 connects.On the liquid road of spherical liquid reservoir 54 upper and lowers (referring to the attitude when it is in running order) be respectively equipped with switch 48, drip fast actuator 10.The spiral shell button-type pintle (not drawing among the figure) of medicated cap button joint 51 and existing transfusion needle of taking out the transfusion three-way cock 52 (for prior art) of liquid interface is complementary, its (standby) spiral shell (tooth) button-type joint bolt 53 can also can drip defeated (grafting is dripped defeated) for existing transfusion device, blood exchange transfusion set's connection for syringe grafting blood drawing check; Be furnished with connection protective cap on its medicated cap button joint 51, be furnished with joint bolt protecting cover (be prior art, all do not draw among the figure) on its spiral shell button-type joint bolt 53.Liquid reservoir suspender 50 (transfusion pipe support) can be coiled in the top of it so that the spherical liquid reservoir 54 of slinging makes the stagnant liquid of its intracavity import human body naturally for tube for transfusion.Blood filter 49 is positioned at the top of dropping funnel 6.

Embodiment 5:

Fig. 6,7 shows fifth embodiment of the invention.As shown in Figure 6, its feed liquor interface is made of " L " shape dropper 59 that connects bottle device 57 and offer the grafting dosing mouth.The tube for transfusion hypomere is provided with a tubular liquid reservoir 62 of being furnished with wrist-watch belt lag receiver fixture, respectively is provided with a switch 58 on the liquid road of its upper and lower, the liquid Lu Shangshe (flexibles connection) of its below but the fast actuator 33 that both hands control is arranged.Moveable cap button joint 31 is taken out liquid interface.The tube for transfusion epimere is provided with a liquid reservoir suspender (tube for transfusion engaging nail) 61, during continued access last bottle on same day liquid, smoothly tube for transfusion is mentioned and is stuck in the tube for transfusion engaging nail so that can make the stagnant liquid in the tubular liquid reservoir 62 import human body naturally.Dropping funnel 6 is positioned at blood filter 60 belows.

As shown in Figure 7, can adopt a kind of syringe-like liquid reservoir 63 to replace tubular liquid reservoir 62, the suction appropriate amount of fluid also can be carried out pressure transfusion in order to cooling down use after venous access was set up back or continued access liquid.

Embodiment 6:

Fig. 8 shows sixth embodiment of the invention.(two) that take the feed liquor interface connect bottle device 64 and " Y " shape dropper 66 and are linked in sequence and are arranged on the top that its top has the dropping funnel 65 of grafting dosing mouth.Respectively being provided with one on two arms on " Y " shape dropper 66 tops drips fast actuator 10 and is used for regulating and drips speed, anti-residual liquid, liquid transition and rinse a bag washing pipe control.The moveable cap button joint 31 of taking out liquid interface is fixedly installed on tube for transfusion 69 ends.Tube for transfusion 69 hypomeres are provided with an olive shape liquid reservoir 72 of being furnished with watch style liquid reservoir fixture 70; The fast actuator that the liquid road of olive shape liquid reservoir 72 belows is provided with a switch 58 or can singlehanded controls.Tube for transfusion 69 epimeres are provided with a liquid reservoir suspender 68 (tube for transfusion engaging nail).Blood filter 67 is positioned at the intracavity of dropping funnel 65." Y " shape dropper 66 arm wherein is provided with liquid medicine filter 71 and is used for dripping loading liquid, and another root arm is used for the blood transfusion conversion.

Note: 1. owing to the length that different accessories or its formation and each section are installed on the tube for transfusion 15,28,41,56,69 is different, so do not adopt identical caption numbering; 2. because the lens of shape, length and the installation of dropper 3,16,23,59 and " Y " shape dropper 38,66 different (though do not have specific meanings, for ease of identification), so do not adopt identical caption to number.

What above technical scheme and embodiment described emphatically is design of the present invention, and given accompanying drawing is a sketch map, therefore, should understand content essence of the present invention in system complete ground.Those architectural features described in the above embodiment are the example in order to allow those skilled in the art can basic design according to the present invention realize just, is not to be restriction to material therefor of the present invention and version.After those skilled in the art understand the present invention, can draw inferences about other cases from one instance fully.Be readily appreciated that, some technical characterictics in the above-mentioned embodiment can omission, displacement, phase double replacement, forget or decompose reorganization, also can adopt the identical parts of other functions to replace, just as 26 a lot of synonyms of English alphabet one-tenth capable of being combined, can reconfigure according to design of the present invention and design principle fully.For example: 1. as shown in Figure 1, can omit short section colloid pipe 12, also the colloid pipe can be made straight tube shape or Rhizoma Nelumbinis shape; 2. as Fig. 1,3,4,5,6, feed liquor interface shown in 8, go out liquid interface, blood filter, tube for transfusion, a dropping funnel and a fast actuator, it just represents the feed liquor interface of prior art, go out liquid interface, blood filter, tube for transfusion, a dropping funnel and a fast speed regulator all can adopt, be not to be fixed in those patterns that provide among the figure, for example offer tube for transfusion (the thin transfusion catheter that contains transfusion needle) bayonet socket and/or can block the slide fastener that closes tube for transfusion on the handle of a part fast regulator product, these all can adopt, when venipuncture is failed, be used to hang transfusion needle in case its pendular swinging is contaminated; 3. shown in Fig. 1,3,4,5,6,8, both their liquid interface that goes out can be exchanged, a syringe needle or transfusion needle (not drawing among the figure) also can be set at their tube for transfusion end participate in constituting and take out liquid interface in other words, be used to the remaining needle of pegging graft, so also be fine; 4. between the disposable transfusion device of China's production at present, blood exchange transfusion set's producer just has more than hundred, its feed liquor interface, go out liquid interface, liquid medicine filter, dropping funnel, tube for transfusion, blood filter, the structure of dripping fast actuator respectively has characteristics, suitable many of its style, the present invention can not draw it one by one; Only otherwise touch other people rights and interests, all can adopt; 5. the liquid reservoir shown in Fig. 1,3,4,5,6,7,8 can exchange it with them fully, also can adopt the liquid reservoir of other shape to replace it; 6. shown in Fig. 1,3,4,5,6,8, can be with their feed liquor interface cross exchanged; And so on, these all are fine.Therefore should be understood that; even for the prevailing professional and technical personnel in this area; after contact the present invention; can also be pointed out; or be in existing equipment, produce custom, the consideration of aspects such as assembling facility, production cost, technical standard, outward appearance art; can utilize design principle of the present invention to make some improvement and modification (accommodation) fully, unquestionable, these all drop within protection scope of the present invention.

Claims (10)

1. disposable enclosed blood exchange transfusion set that cools down, it comprises: mutual feed liquor interface, blood filter, dropping funnel, the tube for transfusion that connects and go out liquid interface is characterized in that: it is to be provided with at the tube for transfusion hypomere a kind ofly can admit and store the liquid reservoir that tube for transfusion hypomere intracavity is detained liquid and constitute; Described feed liquor interface can be connected perforation with the bag mouth of transfusion bags; Described liquid reservoir is a kind of liquid container that can supply the nurse manually repeat to extrude and can repeat to get rid of its intracavity delay liquid, and the inner chamber of described liquid reservoir and the inner chamber of tube for transfusion connect, and the volume of described liquid reservoir equals the volume of tube for transfusion epimere inner chamber at least; Describedly go out liquid interface and can be connected perforation with the feed liquor interface of transfusion needle set.

2. the disposable enclosed according to claim 1 blood exchange transfusion set that cools down is characterized in that: it comprises the liquid Lu Shangneng that is arranged on above or below the liquid reservoir drips speed for nurse's manual adjustments the fast actuator that drips.

3. the disposable enclosed according to claim 1 blood exchange transfusion set that cools down is characterized in that: when described feed liquor interface during for " Y " shape feed liquor interface, wherein arm that should " Y " shape feed liquor interface top is provided with a liquid medicine filter.

4. the disposable enclosed according to claim 2 blood exchange transfusion set that cools down is characterized in that: when described feed liquor interface during for " Y " shape feed liquor interface, wherein arm that should " Y " shape feed liquor interface top is provided with a liquid medicine filter.

5. according to claim 1,2, the 3 or 4 described disposable encloseds blood exchange transfusion set that cools down, it is characterized in that: the liquid road of the top of described liquid reservoir or liquid reservoir top is provided with on the liquid road that it can be suspended on its top and can makes the stagnant liquid of its intracavity import the liquid reservoir suspender of human body naturally.

6. according to claim 1,2, the 3 or 4 described disposable encloseds blood exchange transfusion set that cools down, it is characterized in that: the outer wall of described liquid reservoir is provided with and can makes it attached to the liquid reservoir fixture on patient's limbs.

7. the disposable enclosed according to claim 5 blood exchange transfusion set that cools down, it is characterized in that: the outer wall of described liquid reservoir is provided with and can makes it attached to the liquid reservoir fixture on patient's limbs.

8. according to claim 2, the 4 or 7 described disposable encloseds blood exchange transfusion set that cools down, it is characterized in that: when described fast actuator was positioned on the liquid road of liquid reservoir top, then the liquid road of its below was provided with the switch that can open and close it; When described fast actuator be positioned on the liquid road of liquid reservoir below and for singlehanded control drip fast actuator the time, then the liquid road of its top is provided with the switch that can open and close it; When described fast actuator be positioned on the liquid road of liquid reservoir below and for both hands control drip fast actuator the time, then all be provided with the switch that can open and close them on the liquid road of above its and below.

9. the disposable enclosed according to claim 5 blood exchange transfusion set that cools down is characterized in that: when described fast actuator was positioned on the liquid road of liquid reservoir top, then the liquid road of its below was provided with the switch that can open and close it; When described fast actuator be positioned on the liquid road of liquid reservoir below and for singlehanded control drip fast actuator the time, then the liquid road of its top is provided with the switch that can open and close it; When described fast actuator be positioned on the liquid road of liquid reservoir below and for both hands control drip fast actuator the time, then all be provided with the switch that can open and close them on the liquid road of above its and below.

10. the disposable enclosed according to claim 6 blood exchange transfusion set that cools down is characterized in that: when described fast actuator was positioned on the liquid road of liquid reservoir top, then the liquid road of its below was provided with the switch that can open and close it; When described fast actuator be positioned on the liquid road of liquid reservoir below and for singlehanded control drip fast actuator the time, then the liquid road of its top is provided with the switch that can open and close it; When described fast actuator be positioned on the liquid road of liquid reservoir below and for both hands control drip fast actuator the time, then all be provided with the switch that can open and close them on the liquid road of above its and below.

Images