CN200957231Y

CN200957231Y - Multifunctional medical filter

Info

Publication number: CN200957231Y
Application number: CN 200620002744
Authority: CN
Inventors: 张亚平; 黄琪凌
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-01-10
Filing date: 2006-01-10
Publication date: 2007-10-10
Anticipated expiration: 2016-01-10

Abstract

The utility model discloses a multifunctional medical filter, which is mainly composed of an upper shell body and a lower shell body; wherein, an air-bleed hole covered fully by a liquid degassing membrane is set up at the center of the upper shell body; a liquid medicine filter membrane is welded inside the lower shell body; a silicone tube is arranged tightly in a liquid tube formed by the lower shell body and an liquid adding pot is set up vertically at the side wall of the liquid tube; a protecting cap is set up at the outer edge of the liquid adding pot; the utility model is connected between an infusion apparatus and an Intravenous needle; when adding medicine in an emergency, unplugging the protective cap, penetrating a injector into the silicone tube or inserting a cone head of the injector into the liquid adding pot, and then the drug liquid can be injected equally by the two measures mentioned above. Thanks to the residual gas in the body can be filtered and the operation of drug liquid adding can be completed quickly, and thus the utility model has the advantages of that the labor intensity of staff is reduced and the treatment efficiency is improved so as to ensure a more safe and reliable infusion.

Description

The multifunctional medical filter

Technical field: this utility model relates to a kind of transfusion filter, and particularly a kind of venous transfusion process that is used for can be got rid of gas in the liquid-transport pipe-line and the multifunctional medical filter by filling kettle filling medicinal liquid voluntarily.

Background technology: by tube for transfusion filling medicinal liquid is common interim therapeutic modality in the venous transfusion treatment, when being more common in the first aid process or the state of an illness abrupt change being arranged.Medicinal liquid is in preparation process, reason because of equipment and medicine material itself, making residually in the finished product medicinal liquid has a large amount of microgranules and an insoluble granule, can enter human body with injection or transfusion, larger particles can not be engulfed by reticuloendothelial system (phagocyte), can form granuloma in tissue, fibrosis forms cicatrix at most then; In venous transfusion, residual gas is also often arranged in the pipeline, volume gas is if enter the blood of human body circulation, and severe patient can form gas embolism, causes death.Moreover, due to illness end of loveization need first aid in the transfusion, regular meeting takes urgent dosing method: rescue toward the interior injection of liquid-transport pipe-line; Generally in the transfusion device pipeline, be connected with associated component, as: tee T, puncture component, calparine cap, rubber tube etc.; But these assemblies can not well address the above problem in transfusion device, because of said modules only is suitable for entry needle puncture filling, its application in (promptly) complex environment just is restricted, and because of puncture method must can carry out after the site of puncture carries out partly sterilised, this can prolong therapeutic time.In clinical, interim dosing can useful entry needle puncture method, or does not have the skill of handling needles and finish filling (be with syringe conehead and the grafting of dosing kettle hole seat, medicinal liquid is injected into vein); All multiple dosing assembly in the transfusion device structure had both increased the structure of transfusion device and the hidden danger of quality in the processing at present, also made troubles to the operator.Because of the dosing assembly exists above defective and deficiency, causing medical personnel annotates with following needleless method often in urgent dosing: be that filter is separated with the intravenous needle flexible pipe, directly (6% tapering) joint and syringe conehead are pegged graft in Rule, the filling medicine, though the method filling rapidly, exist following dangerous: 1, small portion of residual gas can be injected human body; 2, (do not use) liquid medicine filter filling because cross, can be with the microgranule in the medicinal liquid or granule direct injection/be infused in the blood of human body circulation; So, more than do not have skill of handling needles operational approach and present unsafe factor because of the defective of current apparatus; And current transfusion device structure can not satisfy clinical transfusion again to urgent filling medicinal liquid process safe needs.

Summary of the invention: the purpose of this utility model just provides a kind ofly has multiple filling medicinal liquid mode, and the multifunctional medical filter for transfusion of gas in the filtering pipeline voluntarily, can overcome deficiency and defective in the above needs.

The technical solution of the utility model is achieved in that by housing, lower house, filling kettle, liquid degassing film, medicinal liquid filter membrane, silica gel sealing pipe forms the multifunctional medical filter jointly, it is characterized in that: nearly middle part has steam vent on the upper shell plane, liquid degassing film and upper shell welding and complete covering steam vent; The lower house interior welds has liquid medicine filtering membrane; In the feed tube inside that lower house constitutes the silica gel sealing pipe is housed, vertically has the filling kettle corresponding to the feed tube side, kettle mouth outer rim has band base of a fruit cork helmet.

Place the liquid medicine filtering membrane of lower house, can there be 20,10,5 microns different sizes its filter membrane normal pore size, adapts to (common, accurate, ultra micro) the different filtration requirement to medicinal liquid respectively; Place the intravital liquid degassing film of upper casing, its aperture is 0.2 micron, can tolerate 40kPa-100kPa pressure and the leakage of liquid does not take place, and gas seen through resistance less than 2.0cmH ₂O can break away from filtering with the gas that exists in the medicinal liquid.Be built-in with a silica gel sealing pipe at the lower house feed tube, and be tight with the feed tube inner surface and contact, its middle part is corresponding to the filling kettle of the sidewall of feed tube, can be with the filler port shutoff, in filling kettle outer rim the cork helmet of the one band base of a fruit is arranged, the sealing of filling kettle can be prevented entering of dust and microgranule.Filling kettle inner edge forms 6% tapered hole, can with syringe conehead fluid-tight engagement.

During use, this utility model is serially connected with between (6% tapering) female Luer of transfusion device pipe end and venipuncture needle flexible pipe, the medicinal liquid filter membrane carries out conventional filtration to microgranule in the medicinal liquid; Survival gas in the medicinal liquid then is filtered liquid degassing film filtering in the device.When urgent dosing infusion, this utility model can have two kinds of adding method thereofs: the one, after tight the pegging graft of syringe conehead and filling kettle hole, firmly inject, the silica gel tube distortion is sunk, between feed tube and silica gel tube, produce the gap, enter human body after filter filters so that medicinal liquid enters through this slit; The 2nd, with the entry needle puncture method: open filling kettle blocking, entry needle pierces through vertically that silica gel tube enters the feed liquor tube chamber in the filler port, medicinal liquid is injected filter housings enter human body behind the medicinal liquid membrane filtration.After finishing, entry needle is extracted, shutoff filling kettle gets final product again then.These two kinds of methods all need not be sterilized.

Because this utility model adopts in liquid feeding end outside vertical direction and is provided with filling kettle structure, in its outer rim one soft blocking is arranged, and makes it when annotating with syringe, do not need can save time to the sterilization of dosing kettle, raise the efficiency;

Because this utility model adopted the structure that a flexible silicon sebific duct is installed in the feed liquor tube wall, make it can be suitable for connecting the dosing kettle and with the dosing of entry needle puncture silica gel tube dual mode with syringe;

Because this utility model has adopted at the upper shell inner surface and has been mounted with the liquid degassing membrane structure, makes it carry out filtering to residual gas in the liquid;

Because this utility model can adopt the medicinal liquid filter membrane in multiple different apertures in housing, make it can be adapted to different medical filtration needs, as finishing common filtration, secondary filter, hyperfiltration.

Description of drawings:

Fig. 1 is a structural representation of the present utility model.

Specific embodiment:

As shown in Figure 1, by the multifunctional medical filter for transfusion of injection mo(u)lding, mainly be to make by welding by upper shell 2 and lower house 1; Facial planes has a steam vent 2a in upper shell 1 near, and diameter is not more than 1.5mm, is welded with a liquid degassing film 3 at hole 2a periphery, its complete covering steam vent 2a; At the inner face of lower house, be welded with a liquid medicine filtering membrane 6, its pore size filter can be a tube-like interface at the two ends of lower house according to the clinical plurality of specifications that needs, an end is feed tube 1a; The other end is drain pipe 1b, in the side of liquid feeding end 1a, has a filling kettle 5 to communicate with inlet opening 1a, has a silica gel sealing tube and tube 1a inwall to cooperate in feed tube 1a; The tapering (6%) of dosing kettle hole taper (6%) and syringe conehead coincide, and in the outer rim of filling kettle 5 a helmet 5a is arranged; Last lower house forms multifunctional medical filter described in the utility model by firmly (melting) welding of special equipment; In the use, between this utility model serial connection and transfusion device and intravenous needle, finish normal infusion, when needs are promptly annotated medicinal liquid, head protector is taken off, can directly thrust, wear out silica gel tube, medicinal liquid is injected finish with entry needle; Also needleless injector conehead and filling kettle of the present utility model directly can be pegged graft, the injection liquid of exerting oneself then, pressure can make silica gel tube deform, and produces the gap between silica gel tube and the feed tube, and medicinal liquid is finished filling through the gap; Have minimum gas in residual gas in infusion process in the tube for transfusion or the filling medicinal liquid process, these gases can enter in the liquid medicine filter of the present utility model, and microgranule or granule in the medicine under the filtration of liquid medicine filtering membrane, are finished filtration; Residual gas in the medicinal liquid, then under the effect of liquid degassing film, gas preferentially by this membrane filtration mistake, is discharged to the external world through exhausting window.

More than these structures make this utility model can adapt to clinical in common dosing needs, and can prevent simultaneously that the bubble that produces in the infusion process from entering the possibility of human body.Make the infusion treatment safety and reliability, make emergency aid and treatment process filling medicine rapider, increase work efficiency.

Claims

1, this multifunctional medical filter mainly is made of jointly upper shell (2), lower house (1), filling kettle (5), liquid degassing film (3), medicinal liquid filter membrane (6), silica gel sealing pipe (4); It is characterized in that: nearly middle part has steam vent (2a) on upper shell (2) plane, liquid degassing film (3) and upper shell welding and complete covering steam vent (2a); Be welded with liquid medicine filtering membrane (6) in the lower house (1); In feed tube (1a) inside that lower house (1) constitutes silica gel sealing pipe (4) is housed, vertically has filling kettle (5) corresponding to feed tube (1a) side, kettle mouth outer rim has helmet (5a).

2, by the described multifunctional medical filter of claim 1, it is characterized in that: steam vent (2a) aperture that is positioned at upper shell is not more than 1.5mm.