CN103432648A - Transfusion device capable of realizing automatic shut-off at end of transfusion - Google Patents
Transfusion device capable of realizing automatic shut-off at end of transfusion Download PDFInfo
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- CN103432648A CN103432648A CN2013104101666A CN201310410166A CN103432648A CN 103432648 A CN103432648 A CN 103432648A CN 2013104101666 A CN2013104101666 A CN 2013104101666A CN 201310410166 A CN201310410166 A CN 201310410166A CN 103432648 A CN103432648 A CN 103432648A
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- liquid storage
- dropping funnel
- buoy
- storage dropping
- center
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Abstract
The invention discloses a transfusion device capable of realizing automatic shut-off at the end of transfusion. The transfusion device comprises a liquid storage drip chamber, and a buoy provided with a lower gravity center rod is arranged in the liquid storage drip chamber; the total length of the buoy is smaller than the length of a cylindrical segment of the liquid storage drip chamber, the gravity center rod is in a shape of cone having a thin lower part and a large upper part and has a part with diameter larger than that of the lower opening of the liquid storage drip chamber and a part with diameter larger than that of the lower opening of the liquid storage drip chamber. The device can realize automatic shut-off at the end of transfusion and has a simple structure.
Description
Technical field
The present invention relates to the monitoring infusion of medical industry, but while more specifically treating to patient infusion when transfusion finishes the infusion set of automatic-diversion closure.
Background technology
In patient is carried out to the process of infusion treatment, transfusion is monitored and is very important.A most important ring of monitoring is to dam in time.The device that transfusion is monitored in prior art has a lot, and manual damming and two kinds of modes of automatic-diversion closure arranged aspect damming.Dam and need patient to do it yourself by hand, patient just can not have a rest in infusion process like this.Can be started to dam by the entourage, but many times patient have the entourage by the side of yet.Automatic-diversion closure has been realized automatization, but the product structure complexity.
Summary of the invention
But the infusion set of automatic-diversion closure when the purpose of this invention is to provide a kind of transfusion simple in structure and finishing.
Device of the present invention, comprise the liquid storage dropping funnel, and the buoy with bottom center of gravity bar is set in the liquid storage dropping funnel;
The total length of described buoy is the length that is less than liquid storage dropping funnel cylindrical section;
Described center of gravity bar is lower thin large taper shape, and has diameter to be less than the part of liquid storage dropping funnel lower port diameter, and diameter is greater than the part of liquid storage dropping funnel lower port diameter.
So-called buoy of the present invention consists of floating head and bottom center of gravity bar, and the total length of buoy is for raising the nose above water to breathe the distance of top to center of gravity bar lower end.
The length of liquid storage dropping funnel cylindrical section refers to that the liquid storage dropping funnel disregards the length of the cylindrical section in the middle of calculating after the two sections conical section.
So-called bottom of the present invention center of gravity bar, its axial line overlaps with the center of gravity line of whole buoy, and is positioned at the bottom of buoy.Like this, when buoy floats on liquid level, in fact just float on liquid level, and the center of gravity bar is immersed under liquid level.And the center of gravity bar faces liquid storage dropping funnel end opening and bottom liquid pipe vertically downward.
So-called liquid storage dropping funnel end opening refers to the position of liquid storage dropping funnel foot and Ye Guan junction, bottom.
In device of the present invention, when there is abundant liquid (medicinal liquid) in the liquid storage dropping funnel, buoy will be floating, and the bottom center of gravity bar of buoy will be vertically downward.Because the total length of buoy is the length that is less than liquid storage dropping funnel cylindrical section, so the lower end of its center of gravity bar can be positioned on liquid storage dropping funnel end opening, and be unlikely to block liquid storage dropping funnel end opening.Like this, during normal infusion, medicinal liquid just can flow down smoothly.
And work as infusion-completed, after the medicinal liquid in medicine bottle drips sky, the top liquid pipe of liquid storage dropping funnel also can and then drip sky.When not having medicinal liquid to supplement, the liquid level in the liquid storage dropping funnel will descend, and buoy also can and then descend.
Because the center of gravity bar is lower thin large, the diameter of thin part is less than liquid storage dropping funnel lower port diameter, so the center of gravity bar can enter along with medicinal liquid liquid storage dropping funnel end opening.Along with the center of gravity bar moves down gradually, the center of gravity shank diameter of vertebral body shape becomes large gradually.Because having diameter, the center of gravity bar is greater than the part of liquid storage dropping funnel lower port diameter, so the liquid storage of equaling dropping funnel lower port diameter part is necessarily arranged.Equal liquid storage dropping funnel lower port diameter part when the center of gravity bar moves down into its diameter, just just liquid storage dropping funnel end opening is blocked, make the medicinal liquid in the liquid storage dropping funnel no longer mobile, thereby play the effect of damming.
Therefore, device of the present invention, but can be when transfusion finishes automatic-diversion closure, and simple in structure.
The length that the center of gravity shank diameter is less than the part of liquid storage dropping funnel lower port diameter 1/4 ~ 3/4 of the core bar total length of attaching most importance to.The center of gravity shank diameter is less than the part of liquid storage dropping funnel lower port diameter, can stretch into liquid storage dropping funnel end opening in fact exactly and the part that enters bottom liquid pipe.The words that this part is too short, the part on liquid storage dropping funnel end opening will be very long, on liquid storage dropping funnel end opening, very long bar is added floating floating head, will make the part that stretches into bottom liquid pipe, can not solid and reliable ground jam-pack liquid storage dropping funnel end opening under the impact of uncertain external force, likely affect the effect of damming.If instead it is oversize to stretch into the part of bottom liquid pipe, the medicinal liquid remained in so in the liquid storage dropping funnel will seldom make troubles to the operation of replacing liquid medicine, does not do a good job in to make bottom liquid pipe blank pipe.
Center of gravity bar lower surface is preferably smooth sphere.Such shape, more be conducive to center of gravity bar lower end and enter smoothly dropping funnel end opening and bottom liquid pipe.
The floating head symmetric shape of buoy.So more can guarantee that buoy is stable on liquid level, thereby guarantee center of gravity bar under buoy vertically downward, and face dropping funnel end opening and bottom liquid pipe.
Further, the upper surface of the floating head of buoy selection sphere or flat sphere are best.
The floating head of buoy is ball, ellipsoid, hemisphere or semielliptical.Floating best with the stability of ball.
The floating head of buoy is disk.This is also the highly stable shape of floatability.
Device of the present invention, it is the improvement to existing infusion set, on the basis of existing infusion sets for single use, increase a buoy that can float on liquid level and can move down along with liquid level in liquid storage dropping funnel therein; the bottom center of gravity bar of buoy can be blocked liquid storage dropping funnel end opening in folding process, thereby realizes the purpose of automatic-diversion closure when transfusion finishes.
The accompanying drawing explanation
Fig. 1 is the partial structurtes schematic diagram of infusion set of the present invention.
Wherein, the parts that comprise have: top liquid pipe 1, and liquid storage dropping funnel breather 2, on the liquid storage dropping funnel, circular cone 3, and liquid storage dropping funnel 4 raises the nose above water to breathe 5, center of gravity bar 6, under the liquid storage dropping funnel, circular cone 7, liquid storage dropping funnel end opening 8, bottom liquid pipe 9.
In Fig. 1, also sign has liquid level position A and liquid level position B, and the buoy shown in dotted line floats up to the state of A position, and the buoy shown in solid line is displaced downwardly to the current floe condition of B.
The specific embodiment
See Fig. 1.Top liquid pipe 1 is connecting circular cone 3 on the liquid storage dropping funnel, in liquid storage dropping funnel 4, is by raising the nose above water to breathe 5 and the buoy that forms of center of gravity bar 6, the total length of buoy raise the nose above water to breathe 5 tops to center of gravity bar 6 lower ends apart from the length that is less than liquid storage dropping funnel 4 cylindrical sections.The length of liquid storage dropping funnel 4 cylindrical sections does not comprise on the liquid storage dropping funnel circular cone 7 under circular cone 3 and liquid storage dropping funnel.
Center of gravity bar 6 is lower thin large taper shape, the length that diameter is less than the part of liquid storage dropping funnel 4 end opening 8 diameters 2/4 of the core bar total length of attaching most importance to, and the part that is greater than liquid storage dropping funnel end opening 8 diameters with diameter is half-and-half.
The lower surface of center of gravity bar 6 is smooth sphere.
Device of the present invention, when practical application, at first medical personnel are full of medicinal liquid in top liquid pipe 1 and bottom liquid pipe 9, then utilize the control liquid switch of existing infusion sets for single use that bottom liquid pipe 9 is clamped, and make medicinal liquid no longer mobile.Open liquid storage dropping funnel breather 2, make again the medicinal liquid in top liquid pipe 1 run down in liquid storage dropping funnel 4, make the liquid level in liquid storage dropping funnel 4 be increased to the A position.Now, buoy also and then raises, and raises the nose above water to breathe 5 to be positioned on liquid level position A, and center of gravity bar 6 is immersed in medicinal liquid, and its lower end is positioned on liquid storage dropping funnel end opening 8.
Work as infusion-completed, after the medicinal liquid in medicine bottle drips sky, the top liquid pipe 1 of liquid storage dropping funnel 4 also can and then drip sky.When not having medicinal liquid to supplement, the liquid level in liquid storage dropping funnel 4 will descend, and buoy also can and then descend.The bottom of center of gravity bar 6 enters the end opening 8 of liquid storage dropping funnel 4 along with medicinal liquid.Liquid level in liquid storage dropping funnel 4 drops to the B position, and center of gravity bar 6 moves down into the end opening 8 diameter parts that its diameter equals liquid storage dropping funnel 4, just liquid storage dropping funnel end opening 8 is blocked, and makes the medicinal liquid in liquid storage dropping funnel 4 no longer mobile, realizes automatic-diversion closure.
Claims (7)
1. when transfusion finishes, but the infusion set of automatic-diversion closure, comprise the liquid storage dropping funnel, it is characterized in that: the buoy with bottom center of gravity bar is set in the liquid storage dropping funnel;
Described buoy consists of floating head and bottom center of gravity bar, and the total length of buoy is the length that is less than liquid storage dropping funnel cylindrical section;
Described center of gravity bar is lower thin large taper shape, and has diameter to be less than the part of liquid storage dropping funnel lower port diameter, and diameter is greater than the part of liquid storage dropping funnel lower port diameter.
2. according to the device of claim 1, it is characterized in that: the length that the center of gravity shank diameter is less than the part of liquid storage dropping funnel lower port diameter 1/4 ~ 3/4 of the core bar total length of attaching most importance to.
3. according to the device of claim 1, it is characterized in that: center of gravity bar lower surface is smooth sphere.
4. according to the device of claim 1, it is characterized in that: the floating head symmetric shape of buoy.
5. according to the device of claim 1 or 4, it is characterized in that: the upper surface of the floating head of buoy is sphere or flat sphere.
6. according to the device of claim 1 or 4, it is characterized in that: the floating head of buoy is ball, ellipsoid, hemisphere or semielliptical.
7. according to the device of claim 1 or 4, it is characterized in that: the floating head of buoy is disk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104101666A CN103432648A (en) | 2013-09-11 | 2013-09-11 | Transfusion device capable of realizing automatic shut-off at end of transfusion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104101666A CN103432648A (en) | 2013-09-11 | 2013-09-11 | Transfusion device capable of realizing automatic shut-off at end of transfusion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103432648A true CN103432648A (en) | 2013-12-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013104101666A Pending CN103432648A (en) | 2013-09-11 | 2013-09-11 | Transfusion device capable of realizing automatic shut-off at end of transfusion |
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| Country | Link |
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| CN (1) | CN103432648A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104826198A (en) * | 2015-06-03 | 2015-08-12 | 王文秀 | Dripping-stop alarming device for infusion |
| CN108543158A (en) * | 2018-04-16 | 2018-09-18 | 董珉 | Transfusion monitoring device simple in structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5868715A (en) * | 1997-11-13 | 1999-02-09 | Tung; Chen Chang | Intravenous metering device having automatic stopper |
| CN201220023Y (en) * | 2008-06-06 | 2009-04-15 | 成都市武侯专利咨询研发转化研究所 | Safety transfusion device |
| CN201441684U (en) * | 2009-06-04 | 2010-04-28 | 初海滨 | Automatic cutout infusion apparatus |
-
2013
- 2013-09-11 CN CN2013104101666A patent/CN103432648A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5868715A (en) * | 1997-11-13 | 1999-02-09 | Tung; Chen Chang | Intravenous metering device having automatic stopper |
| CN201220023Y (en) * | 2008-06-06 | 2009-04-15 | 成都市武侯专利咨询研发转化研究所 | Safety transfusion device |
| CN201441684U (en) * | 2009-06-04 | 2010-04-28 | 初海滨 | Automatic cutout infusion apparatus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104826198A (en) * | 2015-06-03 | 2015-08-12 | 王文秀 | Dripping-stop alarming device for infusion |
| CN108543158A (en) * | 2018-04-16 | 2018-09-18 | 董珉 | Transfusion monitoring device simple in structure |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131211 |