CN205360158U - Device is proclaimed oneself to greatest extent to venous transfusion liquid - Google Patents
Device is proclaimed oneself to greatest extent to venous transfusion liquid Download PDFInfo
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- CN205360158U CN205360158U CN201620033657.2U CN201620033657U CN205360158U CN 205360158 U CN205360158 U CN 205360158U CN 201620033657 U CN201620033657 U CN 201620033657U CN 205360158 U CN205360158 U CN 205360158U
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Abstract
The utility model relates to a device is proclaimed oneself to greatest extent to venous transfusion liquid belongs to medical instrument technical field. The device includes the income flow tube with stock solution device intercommunication, its characterized in that: go into the flow tube through the infundibulate float cabin of the cross -section convergent that circulates and the one end intercommunication of U -shaped curved tube, the other end of U -shaped curved tube is through the anxious expander of circulation enlargement in section and the one end intercommunication of the curved tube of falling the U -shaped, the other end and the vein needle intercommunication of the curved tube of falling the U -shaped, it is greater than the floater that U -shaped pipe one end internal diameter and proportion are lighter than liquid medicine proportion to be equipped with the diameter in the float cabin, the highest point and the gas collection storehouse communicating pipe of the curved tube of falling the U -shaped. The utility model discloses utilize the siphon principle infusion to flow to end at the liquid medicine that the back is automatic destroys the siphon, though consequently simple structure can reliably prevent the liquid medicine to flow, thereby ensure safety in stock solution device liquid back to the greatest extent, to prevent accidental takes place.
Description
Technical field
This utility model relates to a kind of venous transfusion auxiliary device, especially a kind of venous transfusion liquid self-packer to the greatest extent, belongs to technical field of medical instruments.
Background technology
It is known that venous transfusion defeated rear to the greatest extent as sealing not in time at medicinal liquid, the gas entering inflow pipe is easily accessible human vein generation harm.Research shows, when enter human body air more than 5ml after, aeroembolism will be generated, cause serious circulatory disturbance；Being also possible to the reverse inflow inflow pipe of venous blood and solidify, continuing after transfusion, solidification blood can enter human body, life threatening safety with thrombosis.
Although avoiding the utility model producing above-mentioned phenomenon to emerge in an endless stream, but because structure is complicated, the not high reason of reliability, have no popularization and application.And the warning class device being applied only its reminding effect, fundamentally do not stop the generation of above-mentioned phenomenon.
Summary of the invention
The technical problems to be solved in the utility model is: proposes a kind of simple in construction, can reliably avoid gas or blood back to enter the venous transfusion liquid self-packer to the greatest extent of human body, so that it is able to popularization and application.
This utility model is the technical scheme solving the proposition of above-mentioned technical problem: a kind of venous transfusion liquid self-packer to the greatest extent, including the inflow pipe connected with device for storing liquid, described inflow pipe connects with one end of U-shaped curved tube through the infundibulate float cabin of flow area convergent, the anxious expander that the other end of described U-shaped curved tube is expanded by flow area connects with one end of inverted U-shaped curved tube, and the other end of described inverted U-shaped curved tube connects with intravenous needle；Described float cabin built with diameter more than ball float less than medicinal liquid proportion of U-tube one end internal diameter and proportion, the highest point of described inverted U-shaped curved tube and gas collection storehouse communicating pipe.
During transfusion, it is derived from the medicinal liquid of inflow pipe through float cabin, U-shaped curved tube, anxious expander, inverted U-shaped curved tube to intravenous needle, the device for storing liquid liquid level being in a high position is the essential condition that device of the present utility model creates siphon at the gravity of atmospheric pressure and above-mentioned infiow conduit inner liquid medicine, therefore medicinal liquid is remained continuous, on-demand entrance human vein.A small amount of gas entering infusion pipeline will be contained in gas collection storehouse.
When the medicinal liquid in device for storing liquid flow to end, after tail washings flows to float cabin, ball float can sink down into the port of U-shaped curved tube one end with medicinal liquid liquid level, blocks this outlet, makes the atmospheric pressure of liquid level reduce to 0；Meanwhile, the anxious expander that cross section expands rapidly can increase the on-way resistance of liquid, reduces its cross section mean flow rate, makes medicinal liquid disconnect no longer continuous.Owing to liquid level atmospheric pressure reduces to 0, and up water column gravity is more than descending water column gravity, and siphon runs and stops, and medicinal liquid arrheas, thus it is to the greatest extent self-styled to realize liquid.
This utility model utilizes siphon principle to infuse, and automatically destroys siphon after medicinal liquid flows to end, though therefore simple in construction, can device for storing liquid liquid to the greatest extent after, reliably stop liquid medicine flow, so that it is guaranteed that safety, it is prevented that unexpected occur.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, a kind of venous transfusion liquid self-packer to the greatest extent of the present utility model is described further.
Fig. 1 is the structural representation of one embodiment of this utility model.
Fig. 2 is that Fig. 1 embodiment ball float closes outlet schematic diagram.
Fig. 3 is the anxious expander cutout schematic diagram of Fig. 1 embodiment.
Fig. 4 is the self-styled view of Fig. 1 embodiment.
Fig. 5 is the uplink and downlink water column schematic diagram of Fig. 1 embodiment.
Detailed description of the invention
Embodiment
The venous transfusion liquid of the present embodiment self-packer to the greatest extent is as shown in Figure 1, including the inflow pipe 1 connected with device for storing liquid, this inflow pipe 1 is connected the infundibulate float cabin 2 of flow area convergent by flared section, then is connected with one end of U-shaped curved tube 3 by the undergauge CD outlet 2-2 of float cabin 2.Float cabin 2 top is equipped with keeping off convex 2-1, and its effect is ball float stroke limit, makes ball float can only float in certain limit, it is to avoid it rises to obstruction medicinal liquid entrance.Keep off under convex 2-1 equipped with diameter more than ball float 4 less than medicinal liquid proportion of U-shaped curved tube one end internal diameter and proportion.
The anxious expander 6 that the other end of U-shaped curved tube 3 is expanded by flow area connects with one end of inverted U-shaped curved tube 5, and the other end of inverted U-shaped curved tube 5 is connected with intravenous needle by overflow pipe 7.The highest point of inverted U-shaped curved tube connects gas collection storehouse 9, for housing the gas entering infusion pipeline.In order to make said structure stable, it is possible to by the fixing film 8 in position, each composition component is fixed.
By physics's general knowledge it can be seen that siphon is a kind of under atmospheric pressure promotes, difference in height (gravity) the hydrodynamics phenomenon of the liquid flowing produced.Atmospheric pressure and gravity are the essential conditions that siphon produces.After siphon is triggered, as long as the liquid level that becomes a mandarin is higher than overflow liquid level, liquid in pipe is relatively full, and liquid level is pressed on air, and descending effluent head water column (descending water column) gravity is more than up end water column (up water column) gravity that becomes a mandarin, and siphon will maintain.Above-mentioned two condition lacks one, and siphon will stop.
Referring to Fig. 2 to Fig. 5, use the present embodiment device creates the principle of siphon: after bottle plug puncture unit inserts medicinal liquid bottle, medicinal liquid can flow into float cabin and with lower pipeline until intravenous needle through funnel, the gravity of the medicinal liquid bottle liquid level atmospheric pressure and descending pipeline inner liquid medicine that are in a high position can create the essential condition of siphon, and medicinal liquid enters human body.Its principle stopping siphon is: flow to end at medicinal liquid bottle inner liquid medicine, and after medicine wake flow enters float cabin, ball float can sink down into storehouse outlet with medicinal liquid, and blocks outlet, makes liquid level atmospheric pressure reduce to 0；The anxious expander that cross section expands rapidly can increase the on-way resistance of liquid, reduces mean velocity in section, makes medicinal liquid fracture occur.Owing to liquid level atmospheric pressure reduces to 0, and up water column gravity is more than descending water column gravity, and siphon runs and so far stops, and medicinal liquid arrheas.
It is demonstrated experimentally that adopt the present embodiment device can medicinal liquid flow to end after automatically destroy siphon, reliable stop medicinal liquid to continue flowing, fundamentally guarantee safety, it is prevented that unexpected occur.
Venous transfusion liquid of the present utility model self-packer to the greatest extent is not limited to above-described embodiment, and all employings are equal to replaces the technical scheme formed, and all falls within the protection domain of this utility model requirement.
Claims (4)
1. a venous transfusion liquid self-packer to the greatest extent, including the inflow pipe connected with device for storing liquid, it is characterized in that: described inflow pipe connects with one end of U-shaped curved tube through the infundibulate float cabin of flow area convergent, the anxious expander that the other end of described U-shaped curved tube is expanded by flow area connects with one end of inverted U-shaped curved tube, and the other end of described inverted U-shaped curved tube connects with intravenous needle；Described float cabin built with diameter more than ball float less than medicinal liquid proportion of U-tube one end internal diameter and proportion, the highest point of described inverted U-shaped curved tube and gas collection storehouse communicating pipe.
2. a kind of venous transfusion liquid self-packer to the greatest extent according to claim 1, it is characterised in that: described inflow pipe is connected the infundibulate float cabin of flow area convergent by flared section.
3. a kind of venous transfusion liquid self-packer to the greatest extent according to claim 2, it is characterised in that: described float cabin 2 is connected with one end of U-shaped curved tube by undergauge CD outlet.
4. a kind of venous transfusion liquid self-packer to the greatest extent according to claim 3, it is characterised in that: it is convex that described float cabin top is provided with gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620033657.2U CN205360158U (en) | 2016-01-14 | 2016-01-14 | Device is proclaimed oneself to greatest extent to venous transfusion liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620033657.2U CN205360158U (en) | 2016-01-14 | 2016-01-14 | Device is proclaimed oneself to greatest extent to venous transfusion liquid |
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| Publication Number | Publication Date |
|---|---|
| CN205360158U true CN205360158U (en) | 2016-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620033657.2U Active CN205360158U (en) | 2016-01-14 | 2016-01-14 | Device is proclaimed oneself to greatest extent to venous transfusion liquid |
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| Country | Link |
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| CN (1) | CN205360158U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107596492A (en) * | 2017-09-29 | 2018-01-19 | 陈芳 | A kind of transfusion device back-flow preventer |
| CN108187189A (en) * | 2018-01-10 | 2018-06-22 | 雷建闽 | A kind of double siphons for venous transfusion stop liquid infusion apparatus |
-
2016
- 2016-01-14 CN CN201620033657.2U patent/CN205360158U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107596492A (en) * | 2017-09-29 | 2018-01-19 | 陈芳 | A kind of transfusion device back-flow preventer |
| CN108187189A (en) * | 2018-01-10 | 2018-06-22 | 雷建闽 | A kind of double siphons for venous transfusion stop liquid infusion apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 211151 Jiangning Road, Jiangsu, Wu Tao Industrial Park Road, No. 22 Patentee after: Lei Jianmin Address before: 210013 Nanjing, Nanjing Gulou District, Stone City Road, room 117, No. 408, room Patentee before: Lei Jianmin |