CN102462873A - Infusion device of multifunctional liquor filter - Google Patents
Infusion device of multifunctional liquor filter Download PDFInfo
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- CN102462873A CN102462873A CN2010105664462A CN201010566446A CN102462873A CN 102462873 A CN102462873 A CN 102462873A CN 2010105664462 A CN2010105664462 A CN 2010105664462A CN 201010566446 A CN201010566446 A CN 201010566446A CN 102462873 A CN102462873 A CN 102462873A
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Abstract
The invention relates to a range of medical apparatuses, in particular to an infusion device of a multifunctional liquid medicine filter. The infusion device is mainly characterized in that: the multifunctional liquid medicine filter is a straight filter consisting of an upper cover, a base and at least two layers of filtering membranes, wherein a joint of the upper cover is arranged on the upper cover in a vertical way, a joint of the base is arranged under the base in a vertical way; the joint of the upper cover extends into a dripping head through a water outlet of a dripping bucket; the upper cover is provided with an air vent window which has an automatic air venting role; and the at least two layers of filtering membranes can be used for obstructing air and have an automatic liquid medicine stopping function; and a blood return prevention hole is used for enabling residual liquid in the dripping head to slowly flow into the filter, thereby a blood return prevention role of micro infusion is achieved.
Description
Technical field
Type of the present invention relates to the category of medical apparatus and instruments, is a kind of infusion set of multifunctional medical liquid filter.
Background technology
The liquid medicine filter of existing transfusion device has two kinds, and a kind of is the liquid medicine filter of general infusion set, can only filter the microgranule more than 15 microns, and filter membrane is round, and diameter is equal to or less than 12.5mm, and area is less than 125mm
2The characteristics of structure be the joint of loam cake perpendicular on the loam cake, do not have exhausting window, often be called directly to the formula filter.Another kind is an accurate filter, can filtering the microgranule more than 5 microns, for the area that improves the filter effect filter membrane generally all greater than 350mm
2, because of area is mostly used tray type structure, the joint of loam cake is in a side of loam cake, and the complex process cost is very high.Portioned product is at the last exhausting window that is covered with in recent years, and accurate filter often is called disc filter.External some liquid medicine filter is contained in the dropping funnel, and this type of filter does not have joint.
A small amount of bubble, unique function of all filters is exactly the part microgranule in the filtering medicinal liquid in the disc filter that exhausting window is arranged has the downcomer of eliminating.The filter in dropping funnel, all liquid medicine filters all are mounted in the terminal near downcomer.When having great amount of bubbles to get into downcomer in the dropping funnel, conduit is stopped up, have the disc filter of exhausting window also can only get rid of the bubble of leading under a small amount of entering, can not get rid of a large amount of unnecessary gases in the dropping funnel automatically.So existing liquid medicine filter does not all have the automatic vent function.Germany tool youth's transfusion device filter membrane has automatic solution stopping effect in dropping funnel, but does not have automatic vent and blood return prevention function.
Summary of the invention
The object of the present invention is to provide a kind of infusion set of multifunctional medical liquid filter, this liquid medicine filter had multiple functions such as filtering microgranule, automatic vent, automatic solution stopping and blood return prevention simultaneously.
The objective of the invention is to realize like this: the multifunctional medical liquid filter is a kind of often being called directly to the formula filter, and vertically on loam cake, the base joint is perpendicular under the base for the joint of loam cake.It is characterized in that being stamped an exhausting window; The blood return prevention hole of a diameter less than 1mm arranged on the tube wall of loam cake joint; Filter for installation is below dropping funnel, and the joint of filter cover stretches in the dropping funnel from the dropping funnel outlet, and the blasthole of loam cake joint is minimum from dropping funnel outlet 5mm; In order to reach automatic solution stopping effect, liquid medicine filtering membrane adopts minimum two layers.When medicinal liquid gets into dropping funnel through dropper; Unnecessary gas at first is to discharge to downcomer through joint in the dropping funnel; If medicinal liquid gets into filter; Can stop bubble to pass through after the filter membrane humidity, the bubble that gets into filter is then discharged through exhausting window, and the air filtration film of exhausting window is processed the not water flowing of ventilating with vegetables water material and reached self-bleeding effect.Discharge to downcomer behind the medicinal liquid process medicinal liquid membrane filtration, select different filter membranes for use according to the size of required filtering microgranule, adopt the close filter membrane of rations when generally being used for secondary filter or add one deck secondary filter film, the secondary filter film also can be loaded on the terminal of transfusion device separately.The filter membrane of multifunctional medical liquid filter is generally circle, and diameter is 13-20mm, and area is about 120-310mm
2, its area is less than the area of disc filter, but its flow is superior to disc filter, and reason is the filter membrane multiple structure, and the upper strata is a coarse filtration, majority of particles is filtered, and has avoided secondary filter to cause the shortcoming of obstruction.Because filter membrane adopts hydrophilic fibers to make, soup can get into downcomer behind permeation filtration.When medicinal liquid has flowed, the surface tension effects of liquid, bubble can not pass through filter membrane, reaches the effect of automatic solution stopping.At this moment, the debris in the dropping funnel is gone into filter through the blood return prevention orifice flow, and is very little because of the blood return prevention hole, or in the blood return prevention hole, penetrates a drainage thread, and the speed of introducing liquid is very slow, is keeping the effect of trace transfusion, reaches the effect of blood return prevention.According to the length of required blood return prevention time, the size in design blood return prevention hole and the amount of debris, general debris is many more, and the blood return prevention hole is more little, and then the time of blood return prevention is long more.
So the infusion set of multifunctional medical liquid filter has the low multiple function that medical filtration, automatic vent, automatic solution stopping and blood return prevention are arranged again of the simple cost of technology.
The present invention only needs to add an exhausting window at straight loam cake to the formula filter, and filter membrane adopts minimum two layers, and the joint of loam cake stretches in the dropping funnel; Individual blood return prevention hole is arranged on the tube wall of joint, just can reach the function of filtration, automatic vent, automatic solution stopping and blood return prevention, and filter is that circle is directly to formula; The filter membrane diameter is 13-20mm, and area is significantly smaller than disc filter, and area is little; Simple in structure, cost is low, and is easy to implement.
Description of drawings
Concrete structure of the present invention is drawn by following enforcement and accompanying drawing thereof.
Fig. 1 is the profile of the infusion set of the multifunctional medical liquid filter of proposition according to the present invention.
The specific embodiment
Specify the details and the working condition of the concrete device that proposes according to the present invention below in conjunction with Fig. 1.
The infusion set of multifunctional medical liquid filter comprises a main body liquid medicine filter (1), and it is made up of loam cake (3) and base (2), and the joint (6) that in the filter is filter membrane (4) loam cake is vertically on loam cake (3), and the tube wall of joint has a blood return prevention hole (5).Base joint (8) is perpendicular under the base (2).
To scheme is example; Medicinal liquid gets into dropping funnel (7) through needle for inserting bottle (10) and dropper (11) during work; Gas and liquid all get into filter (1) through the blasthole (12) and the loam cake joint (6) of loam cake joint (6), and liquid filters after base (2) and base joint (8) get into downcomer (9) and transfusion needle (13) through filter membrane (4).The gas that enters filter (1) forces bubble upwards to be discharged from exhausting window (14) because the obstruct of filter membrane (4) can not see through.The filter membrane of exhausting window is made permeable watertight with the vegetables water cellulose, reaches the automatic vent effect.Intact when flow of liquid, liquid medicine filtering membrane (4) intercepts bubble and can not see through, and reaches the effect of automatic solution stopping.Debris in dropping funnel this moment (7) is in blood return prevention hole (5) inflow filter (1), and very little because of blood return prevention hole (5), flow velocity is extremely slow, makes transfusion device keep the trace transfusion and reaches the blood return prevention effect.Blood return prevention hole (5) also can penetrate drainage thread (not drawing among the figure) and keep the trace transfusion with the method for drain, reaches the blood return prevention effect equally.
Claims (3)
1. the infusion set of a multifunctional medical liquid filter of forming by loam cake, base and liquid medicine filtering membrane; The loam cake joint (6) that it is characterized in that liquid medicine filter (1) is perpendicular on the loam cake (3); Base joint (8) is perpendicular under the base (2); Between loam cake (3) and the base (2) liquid medicine filtering membrane (4) is arranged, loam cake joint (6) stretches in the dropping funnel (7) from the outlet of dropping funnel (7), and the tube wall of loam cake joint (6) has a blood return prevention hole (5) near dropping funnel (7) outlet place.
2. the infusion set of multifunctional medical liquid filter according to claim 1 is characterized in that the rarest two layers of liquid medicine filtering membrane (4), and the diameter of filter membrane (4) is 13-20mm.
3. the infusion set of multifunctional medical liquid filter according to claim 1 is characterized in that the outlet minimum 5mm of the blasthole (12) of loam cake joint (6) from dropping funnel (7), and the diameter of blood return prevention hole (14) is less than 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105664462A CN102462873A (en) | 2010-11-18 | 2010-11-18 | Infusion device of multifunctional liquor filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105664462A CN102462873A (en) | 2010-11-18 | 2010-11-18 | Infusion device of multifunctional liquor filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102462873A true CN102462873A (en) | 2012-05-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105664462A Pending CN102462873A (en) | 2010-11-18 | 2010-11-18 | Infusion device of multifunctional liquor filter |
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| CN (1) | CN102462873A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103330966A (en) * | 2013-06-14 | 2013-10-02 | 何前国 | Infusion apparatus capable of controlling blood reflow time through utilizing slow release of micropore passage |
| CN103505771A (en) * | 2012-06-24 | 2014-01-15 | 丘梅丽 | Automatic liquid-stopping type infusion apparatus |
| 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 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2654131Y (en) * | 2003-03-03 | 2004-11-10 | 陈振业 | Disposable residual liquid proof pressurized blood/liquid transfusion apparatus |
| CN201719613U (en) * | 2010-07-06 | 2011-01-26 | 钟永生 | Infusion apparatus capable of automatically exhausting, free of blood return and integrated with air-permeable tube |
| CN201949451U (en) * | 2010-11-18 | 2011-08-31 | 谢世庚 | Infusion apparatus with multifunctional medicine liquid filter |
-
2010
- 2010-11-18 CN CN2010105664462A patent/CN102462873A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2654131Y (en) * | 2003-03-03 | 2004-11-10 | 陈振业 | Disposable residual liquid proof pressurized blood/liquid transfusion apparatus |
| CN201719613U (en) * | 2010-07-06 | 2011-01-26 | 钟永生 | Infusion apparatus capable of automatically exhausting, free of blood return and integrated with air-permeable tube |
| CN201949451U (en) * | 2010-11-18 | 2011-08-31 | 谢世庚 | Infusion apparatus with multifunctional medicine liquid filter |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103505771A (en) * | 2012-06-24 | 2014-01-15 | 丘梅丽 | Automatic liquid-stopping type infusion apparatus |
| 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 |
| CN103330966A (en) * | 2013-06-14 | 2013-10-02 | 何前国 | Infusion apparatus capable of controlling blood reflow time through utilizing slow release of micropore passage |
| CN103330966B (en) * | 2013-06-14 | 2014-09-03 | 何前国 | Infusion apparatus capable of controlling blood reflow time through utilizing slow release of micropore passage |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120523 |