CN102228724A - Safety infusion set with improved discharge tube structure - Google Patents
Safety infusion set with improved discharge tube structure Download PDFInfo
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- CN102228724A CN102228724A CN2011101612590A CN201110161259A CN102228724A CN 102228724 A CN102228724 A CN 102228724A CN 2011101612590 A CN2011101612590 A CN 2011101612590A CN 201110161259 A CN201110161259 A CN 201110161259A CN 102228724 A CN102228724 A CN 102228724A
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- exhaustor
- exhaust pipe
- air filtration
- filtration media
- transfusion system
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Abstract
The invention relates to the technical field of medical instruments, in particular to a safety infusion set with an improved discharge tube structure. The tail end of a discharge tube extending into an inner cavity of a dripping hopper is designed to have a slope shape skillfully, and an air filter medium is arranged on the slope to prevent liquid from sticking to the tail end of the discharge tube or the air filter medium so as to avoid blockage when a liquid level descends. By the improvement, the performance of the discharge tube is perfected and the discharge tube can automatically discharge air for multiple times safely in real sense.
Description
Technical field
The present invention relates to technical field of medical instruments, be specifically related to a kind of safe transfusion system that improves exhaust pipe structure.
Background technology
Existing transfusion device is preventing that the air admission blood vessel from causing malpractice and simple and direct stably the realization to have deficiency and risk aspect the infusion front exhaust.At these problem Chinese patent application 200810071550.7 automatic vent intravenous transfusion device for medical purpose technical schemes, 200920277618.7 an automatic-exhaust transfusion device or 200910238574.1 1 kinds of automatic-exhaust transfusion devices of Chinese invention patent application have all proposed solution, but above-mentioned three patent applications have similar feature, all be an end to be installed stretch into dropping funnel inner chamber middle part in dropping funnel, the other end covers the gas deflation assembly of the air filtration film that not discharge opeing of aerofluxus is installed, but, fail to realize the automatic vent of being bragged about all because having ignored aerofluxus that fluid molecule causes the absorption affinity of exhaustor blocks and fail the real performance declared of realizing.
At the problems referred to above, another technical scheme is made a breakthrough from technology by the safe transfusion system manufacture method of Chinese patent application 201010290116.5 based on the bubble point pressure principle, proposed and the opposite processing scheme of above-mentioned three technology scheme, the gas deflation assembly that will contain the air filtration film is installed in the end that exhaustor stretches into the dropping funnel inner chamber, solved exhaustor and in use caused the exhaustor thromboembolism because liquid enters, the problem that causes the automatic vent failure, at the transfusion device application practice, all be feasible on product technology understanding and the PROCESS FOR TREATMENT and have advanced, it is handled aerofluxus and prevents that the principle of thromboembolism from innovating, but still it is perfect inadequately, the end that mainly shows exhaustor is an anchor ring that rule is complete, when in the transfusion environment of reality, using, still exist end to stick the liquid pearl and cause the exhaustor phenomenon of blocking, can't realize repeatedly automatic vent, especially when the liquid viscosity of infusion is big, this defective seems more outstanding, this defective causes a certain proportion of uncertainty, and should there be this type of uncertain factor in transfusion device.
Summary of the invention
The objective of the invention is to propose improvement project, a kind of defective of relating in the above-mentioned background technology can avoided is provided, really realize the safe transfusion system of automatic vent performance, improvement exhaust pipe structure perfectly.
The object of the present invention is achieved like this:
A kind of safe transfusion system that improves exhaust pipe structure, comprise bottle plug puncture unit, the air inlet part, dropping funnel 2, the medical filtration medium, exhaustor 14, pipeline and actuator, wherein exhaustor 14 1 ends stretch into dropping funnel 2 inner chambers middle part, the passage of exhaustor 14 is covered with the air filtration media 141 of not discharge opeing of aerofluxus, described air filtration media 141 is installed in exhaustor 14 and stretches on dropping funnel 2 inner chambers end 144 aperture positions or the close passage of exhaustor 14 inserting ends partly, it is characterized in that, the shape of the end 144 of described exhaustor 14 is inclined-planes of an opening, the support ring 145 of the outer, inclined-plane of blowing out is set on the inclined-plane of described opening, and described air filtration media 141 is installed on the inclined-plane.
Wherein, the exhaustor 14 that a described end stretches into dropping funnel 2 inner chambers is hollow pipes of an outer wall sealing, its inner chamber one end be communicated with the last capping of dropping funnel lid 12 or sidewall and with external world's perforation,
According to the exhaustor 14 that the technical program is provided with, because the end 144 of exhaustor 14 is inclined-planes of an opening, and air filtration media 141 coverings are installed on the inclined-plane, so the state of this air filtration media 141 also is tilted-putted.When liquid after bottle plug puncture unit enters dropping funnel 2 inner chambers, then accumulate at dropping funnel 2 intracavity bottoms, behind the upper edge of flooding air filtration media 141, stop, liquid begins to enter the pipeline of dropping funnel below 2, because air filtration media 141 is gas-permeable, liquid-impermeables, this process liquids can not pass through air filtration media 141 and enter the inner chamber of exhaustor 14, avoids occurring liquid and adheres to the inner chamber of exhaustor 14 and air embolism takes place, so can keep clear.When transfusion device occurs as timely replacing liquid, and when progressively dripping empty dropping funnel, liquid level in the dropping funnel 2 progressively descends, because the end 144 of inclined-plane form is less with the composition surface of liquid, liquid under action of gravity, can't stick endways 144 and air filtration media 141 on, thereby kept the unimpeded all the time of air filtration media 141, in the time of can not descending owing to the liquid level in the dropping funnel 2, the liquid pearl sticks at exhaustor end 144 and results in blockage, the defective that Chinese patent application 201010290116.5 described schemes occur guarantees that the automatic vent performance of automatic vent pipe 14 is effective consistently.
Wherein, described air filtration media 141 is in pressure no liquid infiltration during less than 50KPa.Although described air filtration media 141 is gas-permeable, liquid-impermeables, but this is with good conditionsi, but not it is absolute, determine air filtration media 141 no liquid seepage under the pressure of 50KPa, be to guarantee that the described transfusion device of this programme works under the pressure transfusion environment, or in infusion process during the unexpected extruding of nursing staff dropping funnel 2, these external pressure can not cause that exhaustor 14 inner chambers that air filtration media 141 is covered enter liquid, thereby cause that thromboembolism causes exhaust performance to lose efficacy.
The technical program is provided with the support ring 145 of the outer, inclined-plane of blowing out on the inclined-plane of described opening, this support ring 145 is blown out in the inclined-plane, is used for the installation of auxiliary air filter medium 141 on the technology.
Wherein, described exhaustor 14 is one section or is formed by connecting by at least two sections hollow pipes, as technologic preferred, be that one section or two sections hollow pipes are formed by connecting, when selecting one section for use, its link should be the inboard of dropping funnel lid 12, during companys of selecting for use section, its junction point should be the arbitrfary point that exhaustor 14 stretches into dropping funnel 2 inner chambers part, all can reach equal performance in this programme.
The present invention realizes that repeatedly self-bleeding principle is: air filtration media 141 is installed on the end 144 that exhaustor 14 is inclined-plane or vertical, utilize that inclined-plane or vertical and liquid flow direction incision angle is fewer, the relative also little principle of faying face, under action of gravity, can't stick when liquid in the dropping funnel 2 are descended endways 144 and air filtration media 141 on, aerofluxus is effective once more and repeatedly effectively to ensure exhaustor 14, realizes perfect repeatedly automatic vent performance.
Technique scheme of the present invention, improved the exhaust pipe structure that Chinese patent application 201010290116.5 proposes, eliminate it and can't handle exhaustor 14 terminal 144 poly-drawbacks of hanging the liquid pearl, thereby realized that really its slotting bottle of declaring that only needs moves, can need not human intervention and automatic vent intactly, and repeatedly change under the transfusion state, performance is all kept consistent effect, the improvement of this programme is simply easy to implement, and performance safety and stability, definite effect are inevitable.
In such scheme, the described exhaustor 14 that stretches into dropping funnel 2, air filtration media 141 is installed in exhaustor 14 and stretches into end 144 in the dropping funnel 2, and terminal 144 are arranged to the blow out opening inclined-plane of support ring 145 of a band, also can be substituted by another kind of configuration, this configuration is characterised in that air filtration media 141 is installed on the sidewall opening of terminal 144 parts, sidewall opening and exhaustor 14 inner chambers connect, end 144 and the sealing of sidewall opening lower edge.Adopt this configuration, after the liquid level of dropping funnel 2 descends, under action of gravity, because air filtration media 141 is installed on the sidewall opening, air filtration media 141 be vertical, perpendicular to ground, and the adsorption plane minimum that constitutes between the liquid, liquid can't stick absorption at all under action of gravity, ensured from start to finish unobstructed of exhaustor 14, guarantee the reliable and stable of automatic vent performance, reach and the same effect of above-mentioned inclined-plane configuration, and this mounting means of air filtration media 141 easier realization scale of mass production on the technology.
Description of drawings
Fig. 1 is the safe transfusion system exhaust pipe structure sketch map of embodiment 1 among the present invention program.
Fig. 2 is the safe transfusion system exhaust pipe structure sketch map of embodiment 2 among the present invention program.
The specific embodiment
Technical scheme of the present invention is done further with preferred embodiment below in conjunction with accompanying drawing and to be specified.
Embodiment 1:
The safe transfusion system of improvement exhaust pipe structure shown in Figure 1, comprise bottle plug puncture unit, the air inlet part, dropping funnel 2, the medical filtration medium, exhaustor 14, pipeline and actuator, wherein exhaustor 14 1 ends stretch into dropping funnel 2 inner chambers middle part, the passage of exhaustor 14 is covered with the air filtration media 141 of not discharge opeing of aerofluxus, described air filtration media 141 is installed in exhaustor 14 and stretches on dropping funnel 2 inner chambers end 144 aperture positions or the close passage of exhaustor 14 inserting ends partly, it is characterized in that, the shape of the end 144 of described exhaustor 14 is inclined-planes of an opening, the support ring 145 of the outer, inclined-plane of blowing out is set on the inclined-plane of described opening, and described air filtration media 141 is installed on the inclined-plane.Wherein, the exhaustor 14 that a described end stretches into dropping funnel 2 inner chambers is hollow pipes of an outer wall sealing, its inner chamber one end be communicated with the last capping of dropping funnel lid 12 or sidewall and with external world's perforation, described exhaustor 14 is one section or is formed by connecting by at least two sections hollow pipes.In addition, described air filtration media 141 is in pressure no liquid infiltration during less than 50KPa.
When safe transfusion system of the present invention is worked, liquid enters dropping funnel 2 inner chambers and begins accumulation and raise liquid level, to the end 144 that floods the exhaustor 14 that stretches into dropping funnel 2 inner chambers, stops during shutoff air filtration media 141 fully, begin to enter dropping funnel 2 with lower pipeline, can infuse after clearing air automatically.Drip sky to infusion bottle, dropping funnel 2 liquid levels descend when progressively exposing air filtration media 141, because the shape of the end 144 of described exhaustor 14 is inclined-planes of an opening, itself and liquid corner cut are smaller, the bonded vertical adsorption plane of institute is little, therefore under action of gravity, liquid can't stick and be adsorbed on end 144 and the air filtration media 141, so connect when renewing medicinal liquid once more, exhaustor 14 is unobstructed all the time, make safe transfusion system of the present invention be achieved perfect automatic vent performance, reach purpose of the present invention.
As shown in Figure 2, it is the sketch map of exhaustor 14 of the safe transfusion system of described improvement exhaust pipe structure, its illustration another configuration that can alternate embodiment 1 inclined-plane configuration, its principle that adopts is consistent with embodiment 1, all be in order to reduce the corner cut of liquid and exhaustor 14 terminal 144 or air filtration media 141, thereby reduce the area of liquid adsorption, reach liquid can't be adsorbed, ensure the unimpeded purpose of air filtration media.
It is the different of air filtration media 141 installation sites with the difference of embodiment 1: air filtration media 141 covers and is installed on the sidewall of exhaustor 14 ends 144, there is the inner chamber of an opening and exhaustor 14 to connect on this sidewall, air filtration media 141 is then on covering and this opening, only discharge for guaranteeing the air in the dropping funnel 2 from sidewall opening, with the performance of performance air filtration media 141, terminal 144 the bottom and the lower edge of sidewall opening are sealed.Because exhaustor 14 is when transfusion device uses, exhaustor 14 is perpendicular to ground or is approximately perpendicular to liquid flow direction, thereby air filtration media 141 is installed on the sidewall of exhaustor 14, naturally also be vertical, the incision angle minimum of it and liquid flow direction, the adsorption plane minimum also can reach effect similarly to Example 1 naturally.
Certainly, can also there be more other configurations can reach the effect same, adopt outer double inclined plane, interior double inclined plane or toothed surface or other irregular as terminal 144 with the present invention, its principle all is to reduce corner cut, reduce contact surface, reduce absorption affinity, to ensure that liquid does not adsorb.
Although two kinds of technical schemes of the present invention all are to describe with reference to specific embodiment, this description and not meaning that is construed as limiting the present invention.With reference to description of the invention, other variations of the disclosed embodiments, as foundation principle of the present invention, the ramp structure of transplanting exhaustor 14 is with in conjunction with the disclosed exhaustor form of Chinese patent 96208818.8, prevent that to obtain thereby the liquid adhesion from improving the deflated unobstructed property effect of exhaustor etc., these variations can expect all that for those skilled in the art this variation should belong in the affiliated claim institute restricted portion.
Claims (8)
1. safe transfusion system that improves exhaust pipe structure, comprise bottle plug puncture unit, the air inlet part, dropping funnel (2), the medical filtration medium, exhaustor (14), pipeline and actuator, wherein exhaustor (14) one ends stretch into dropping funnel (2) inner chamber middle part, the passage of exhaustor (14) is covered with the air filtration media (141) of not discharge opeing of aerofluxus, described air filtration media (141) is installed in exhaustor (14) and stretches on dropping funnel (2) inner chamber end (144) aperture position or the close passage of exhaustor (14) inserting end partly, it is characterized in that the shape of the end (144) of described exhaustor (14) is the inclined-plane of an opening.
2. according to the safe transfusion system of the described improvement exhaust pipe structure of claim 1, it is characterized in that, the support ring (145) of the outer, inclined-plane of blowing out is set on the inclined-plane of described opening.
3. according to the safe transfusion system of the described improvement exhaust pipe structure of claim 1, described air filtration media (141) is installed on the inclined-plane.
4. according to the safe transfusion system of claim 1 or 2 or 3 described improvement exhaust pipe structures, can be substituted by another pattern, it is characterized in that, described air filtration media (141) is installed on end (144) sidewall opening partly of exhaustor (14).
5. according to the safe transfusion system of the described improvement exhaust pipe structure of claim 4, it is characterized in that described sidewall opening and exhaustor (14) inner chamber connects, the end (144) of exhaustor (14) and the sealing of the lower edge of sidewall opening.
6. according to claim 1 or 2 or 3 or the safe transfusion system of 4 or 5 described improvement exhaust pipe structures, it is characterized in that exhaustor (14) is the hollow pipe of an outer wall sealing, its inner chamber one end is communicated with the last capping of dropping funnel lid (12) or sidewall and connects with the external world.
7. according to claim 1 or 2 or 3 or the safe transfusion system of 4 or 5 described improvement exhaust pipe structures, it is characterized in that described exhaustor (14) is one section or is formed by connecting by at least two sections hollow pipes.
8. according to the safe transfusion system of claim 1 or 3 or 4 described improvement exhaust pipe structures, it is characterized in that described air filtration media (141) is in pressure no liquid infiltration during less than 50KPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101612590A CN102228724A (en) | 2011-06-11 | 2011-06-11 | Safety infusion set with improved discharge tube structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101612590A CN102228724A (en) | 2011-06-11 | 2011-06-11 | Safety infusion set with improved discharge tube structure |
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| CN102228724A true CN102228724A (en) | 2011-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011101612590A Pending CN102228724A (en) | 2011-06-11 | 2011-06-11 | Safety infusion set with improved discharge tube structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103691028A (en) * | 2014-01-09 | 2014-04-02 | 江苏苏云医疗器材有限公司 | Infusion apparatus capable of automatically exhausting and automatically stopping liquid |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11267203A (en) * | 1998-03-25 | 1999-10-05 | Nissho Corp | Intravenous drip cylinder |
| EP1535641A1 (en) * | 2003-11-28 | 2005-06-01 | ARIES S.r.l. | Drip chamber with air venting means |
| CN101337098A (en) * | 2008-08-11 | 2009-01-07 | 张孟赐 | Automatic vent intravenous transfusion device for medical purpose |
| CN102000373A (en) * | 2010-06-07 | 2011-04-06 | 李林风 | Manufacturing method of safe transfusion system based on bubbling point pressure principle |
| CN201798965U (en) * | 2010-09-28 | 2011-04-20 | 柯丽红 | Venous transfusion device capable of automatic exhaust |
| CN102068736A (en) * | 2009-11-24 | 2011-05-25 | 杨舟 | Novel safe infusion apparatus |
| CN201880112U (en) * | 2010-12-24 | 2011-06-29 | 江西洪达医疗器械集团有限公司 | Automatic gas-discharging and liquid-stopping precision infusion set |
| CN202161626U (en) * | 2011-06-11 | 2012-03-14 | 李林风 | Safety transfusion device equipped with improved exhaust pipe structure |
-
2011
- 2011-06-11 CN CN2011101612590A patent/CN102228724A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11267203A (en) * | 1998-03-25 | 1999-10-05 | Nissho Corp | Intravenous drip cylinder |
| EP1535641A1 (en) * | 2003-11-28 | 2005-06-01 | ARIES S.r.l. | Drip chamber with air venting means |
| CN101337098A (en) * | 2008-08-11 | 2009-01-07 | 张孟赐 | Automatic vent intravenous transfusion device for medical purpose |
| CN102068736A (en) * | 2009-11-24 | 2011-05-25 | 杨舟 | Novel safe infusion apparatus |
| CN102000373A (en) * | 2010-06-07 | 2011-04-06 | 李林风 | Manufacturing method of safe transfusion system based on bubbling point pressure principle |
| CN201798965U (en) * | 2010-09-28 | 2011-04-20 | 柯丽红 | Venous transfusion device capable of automatic exhaust |
| CN201880112U (en) * | 2010-12-24 | 2011-06-29 | 江西洪达医疗器械集团有限公司 | Automatic gas-discharging and liquid-stopping precision infusion set |
| CN202161626U (en) * | 2011-06-11 | 2012-03-14 | 李林风 | Safety transfusion device equipped with improved exhaust pipe structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103691028A (en) * | 2014-01-09 | 2014-04-02 | 江苏苏云医疗器材有限公司 | Infusion apparatus capable of automatically exhausting and automatically stopping liquid |
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Application publication date: 20111102 |