CN203815959U - Venous infusion device - Google Patents
Venous infusion device Download PDFInfo
- Publication number
- CN203815959U CN203815959U CN201420083580.0U CN201420083580U CN203815959U CN 203815959 U CN203815959 U CN 203815959U CN 201420083580 U CN201420083580 U CN 201420083580U CN 203815959 U CN203815959 U CN 203815959U
- Authority
- CN
- China
- Prior art keywords
- kettle
- dropping funnel
- infusion tube
- transfusion device
- storage bag
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000001802 infusion Methods 0.000 title claims abstract description 34
- 239000007788 liquid Substances 0.000 claims abstract description 45
- 238000007667 floating Methods 0.000 claims abstract description 17
- 239000003814 drug Substances 0.000 claims abstract description 10
- 238000001990 intravenous administration Methods 0.000 claims description 19
- 239000012528 membrane Substances 0.000 claims description 6
- 238000010030 laminating Methods 0.000 claims description 3
- 210000003462 vein Anatomy 0.000 abstract description 16
- 238000001914 filtration Methods 0.000 abstract description 2
- 239000010808 liquid waste Substances 0.000 abstract description 2
- 239000008280 blood Substances 0.000 description 6
- 210000004369 blood Anatomy 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model provides a venous infusion device, which belongs to the technical field of medical appliances. The venous infusion device comprises a puncture device, an upper infusion hose, a dropping funnel, a lower infusion hose, a flow rate regulator, a medicine liquid filter and a vein needle. The venous infusion device has the structural characteristics that an exhaust opening is arranged at the upper side of the dropping funnel, a pair of convex ring sheets are fixedly arranged on the inner wall of the middle upper part of the dropping funnel, a medicine liquid filtering film is fixedly pasted between the convex ring sheets, the lower part of the dropping funnel is in a funnel shape, a waterdrop-shaped floating pendant capable of vertically floating is arranged in an inner cavity of the lower part of the dropping funnel, the lower end of the dropping funnel is connected with an upper end opening of a three-way pipe through a switch, the side end opening of the three-way pipe is connected with an air storage bag containing gas through an air inlet switch, and a lower end opening of the three-way pipe is connected with the lower infusion hose. The venous infusion device has the advantages that the design is reasonable, safety and reliability are realized, the operation is convenient, and medicine liquid can be infused into the veins of the human body as much as possible, so the medicine liquid waste is avoided.
Description
Technical field
This utility model belongs to technical field of medical instruments, relates to particularly a kind of intravenous transfusion device.
Background technology
Intravenous transfusion device is widely used in clinical transfusion, and the intravenous transfusion device using is at present generally main to be connected to form by perforator, infusion tube, a kettle, flow regulator, liquid medicine filter, intravenous needle.Venous transfusion principle is the intrinsic pressure principle of pressing higher than human vein of transfusion system of utilizing atmospheric pressure and fluid pressure to form, in direct liquid afferent veins.In the time that transfusion closes on end, the position of the liquid level counterpart in infusion tube reduces gradually, and fluid pressure reduces gradually, and blood backflow phenomenon can occur intrinsic pressure being close to or higher than when human vein is pressed of transfusion system.For preventing that blood backflow phenomenon occurs in infusion process, in prior art, common intravenous transfusion device is improved, set up back-flow preventer, liquid in the infusion tube of back-flow preventer below is retained, stop blood backflow and air to enter vein blood vessel, will exist like this medicinal liquid retaining in the infusion tube of back-flow preventer below can not input human vein, thereby cause the technical problem of liquid waste, affect the therapeutic effect of transfusion.
Summary of the invention
The purpose of this utility model is to overcome the deficiency that above-mentioned prior art exists, and provides a kind of safe and reliable, easy to operate, thus the intravenous transfusion device of the medicinal liquid that input human vein as much as possible medicinal liquid can be avoided waste.
Task of the present utility model is achieved through the following technical solutions, a kind of intravenous transfusion device, comprise perforator 1, upper infusion tube 2, drip kettle 3, lower infusion tube 8, flow regulator 9, liquid medicine filter 10, intravenous needle 11, its construction features is to drip on kettle 3 to survey and be provided with air vent 12, drip on the inwall of kettle 3 middle and upper parts and be installed with a pair of bulge loop sheet 13, between bulge loop sheet 13, laminating is fixed with a medicinal liquid filter membrane 14, dripping kettle 3 bottoms is infundibulate, is provided with the floating pendant 15 of the drops that can fluctuate in kettle 3 lower lumen; Drip kettle 3 lower ends and be connected with tee T 4 upper port through switch 5, tee T 4 side ports are equipped with the air storage bag 7 of gas within air inlet switch 6 connects, and tee T 4 lower port connect lower infusion tube 8.
In air vent 12, have exhaust gas filter film, the ventilation of exhaust gas filter film is waterproof, and liquid can not outwards flow out from air vent 12, realizes continuous exhaust pneumatic wallop.
The diameter on floating pendant 15 tops is greater than the internal diameter that drips kettle 3 lower end liquid outlets, and the diameter of floating pendant 15 bottoms is less than the internal diameter that drips kettle 3 lower end liquid outlets, and when floating pendant 15 falls, effectively kettle 3 lower end liquid outlet automatic cut outs are dripped in shutoff, prevent that gas from entering vein and blood backflow.
The gas outlet place of air storage bag 7 is provided with check valve, can prevent that gas is to air storage bag 7 internal reflux.
Air storage bag 7 can export to going out that in the volume of gas and lower infusion tube 8, can to retain the volume of medicinal liquid about the same.
Good effect of the present utility model is: reasonable in design, safe and reliable, easy to operate, can be by input human vein as much as possible medicinal liquid, thus avoid waste medicinal liquid.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model
In figure: 1-perforator, the upper infusion tube of 2-, 3-drips kettle, 4-tee T, 5-switch, 6-air inlet switch, 7-air storage bag, infusion tube under 8-, 9-flow regulator, 10-liquid medicine filter, 11-intravenous needle, 12-air vent, 13-bulge loop sheet, 14-medicinal liquid filter membrane, the floating pendant of 15-.
Detailed description of the invention
Be described with reference to the accompanying drawings the details of a kind of intravenous transfusion device the utility model proposes.
As shown in Figure 1, a kind of intravenous transfusion device, comprises perforator 1, upper infusion tube 2, drips kettle 3, lower infusion tube 8, flow regulator 9, liquid medicine filter 10, intravenous needle 11.Drip on kettle 3 and survey and be provided with air vent 12, have exhaust gas filter film in air vent 12, the ventilation of exhaust gas filter film is waterproof, and liquid can not outwards flow out from air vent 12, thereby realizes continuous exhaust pneumatic wallop, drip on the inwall of kettle 3 middle and upper parts and be installed with a pair of bulge loop sheet 13, between bulge loop sheet 13, laminating is fixed with a medicinal liquid filter membrane 14, medicinal liquid filter membrane 14 adopts the hydrophilic filter film of the extremely strong breathability extreme difference of multilamellar infiltration effect to make, when dry, can ventilate, after humidity because the surface tension effects of liquid can seep water but stop gas to pass through, make its filtering liquid medicine simultaneously, can effectively avoid infusion process to have bubble to enter vein, dripping kettle 3 bottoms is infundibulate, drip and be provided with the floating pendant 15 of the drops that can fluctuate in kettle 3 lower lumen, the diameter on floating pendant 15 tops is greater than the internal diameter that drips kettle 3 lower end liquid outlets, the diameter of floating pendant 15 bottoms is less than the internal diameter that drips kettle 3 lower end liquid outlets, when floating pendant 15 is fallen, effectively kettle 3 lower end liquid outlet automatic cut outs are dripped in shutoff, prevent that gas from entering vein and blood backflow, and due to the design of medicinal liquid filter membrane 14, can stop floating pendant 15 to float up to and drip kettle 3 tops, thereby avoid occurring that the situation that kettle 3 inlet feed liquors are dripped in floating pendant 15 impacts occurs, dripping kettle 3 lower ends is connected with tee T 4 upper port through switch 5, tee T 4 side ports are equipped with the air storage bag 7 of gas within air inlet switch 6 connects, the gas outlet place of air storage bag 7 is provided with check valve, can prevent that gas is to air storage bag 7 internal reflux, air storage bag 7 can export to going out that in the volume of gas and lower infusion tube 8, can to retain the volume of medicinal liquid about the same, like this when transfusion closes on end, the interior pressurization of extruding air storage bag 7 downward infusion tube 8, in the time that the interior exportable gas of air storage bag 7 is all extruded, can be by as much as possible being input in human vein of medicinal liquid being deposited in tee T 4 and lower infusion tube 8, medicinal liquid avoids waste, but also can retain some medicinal liquids in lower tube for transfusion 7 bottoms, avoid occurring that gas enters the situation generation of vein, tee T 4 lower port connect lower infusion tube 8.
When operation, switch 5 is made as to open mode, by daily rule of operation to patient infusion, in infusion process, the unnecessary gas dripping in kettle 3 can be discharged through air vent 12, transfusion closes on while end, drips the interior liquid level of kettle 3 and reduces gradually, and floating pendant 15 falls along with liquid level declines, until block the liquid outlet that drips kettle 3, now tee T 4 and lower infusion tube 8 are interior can also keep relatively static by reserve part medicinal liquid, stops blood backflow and air to enter vein, can take precautions against the generation of malpractice.When medical personnel's withdrawal of needle, first closing switch 5, then open air inlet switch 6, with downward infusion tube 8 inflating pressures of hands extruding air storage bag 7, the medicinal liquid of tee T 4 bottoms and the 8 interior retentions of lower tube for transfusion is transported to vein, after the interior exportable gas of air storage bag 7 is all extruded, medical personnel's withdrawal of needle.
Claims (5)
1. an intravenous transfusion device, comprise perforator (1), upper infusion tube (2), drip kettle (3), lower infusion tube (8), flow regulator (9), liquid medicine filter (10), intravenous needle (11), it is characterized in that dripping upper survey of kettle (3) and be provided with air vent (12), drip on the inwall of kettle (3) middle and upper part and be installed with a pair of bulge loop sheet (13), between bulge loop sheet (13), laminating is fixed with a medicinal liquid filter membrane (14), dripping kettle (3) bottom is infundibulate, drip and be provided with the floating pendant of drops (15) that can fluctuate in kettle (3) lower lumen, dripping kettle 3 lower ends is connected with tee T (4) upper port through switch (5), tee T (4) side ports is equipped with the air storage bag (7) of gas within air inlet switch (6) connects, and tee T (4) lower port connects lower infusion tube (8).
2. a kind of intravenous transfusion device according to claim 1, is characterized in that having exhaust gas filter film in air vent (12).
3. a kind of intravenous transfusion device according to claim 1, the diameter that it is characterized in that floating pendant (15) top is greater than the internal diameter that drips kettle (3) lower end liquid outlet, and the diameter of floating pendant (15) bottom is less than the internal diameter that drips kettle (3) lower end liquid outlet.
4. a kind of intravenous transfusion device according to claim 1, is characterized in that the gas outlet place of air storage bag (7) is provided with check valve.
5. a kind of intravenous transfusion device according to claim 1, is characterized in that air storage bag (7) can export to going out that in the volume of gas and lower infusion tube (8), can to retain the volume of medicinal liquid about the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420083580.0U CN203815959U (en) | 2014-02-21 | 2014-02-21 | Venous infusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420083580.0U CN203815959U (en) | 2014-02-21 | 2014-02-21 | Venous infusion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203815959U true CN203815959U (en) | 2014-09-10 |
Family
ID=51471508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420083580.0U Expired - Fee Related CN203815959U (en) | 2014-02-21 | 2014-02-21 | Venous infusion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203815959U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105641778A (en) * | 2016-03-31 | 2016-06-08 | 江苏苏云医疗器材有限公司 | Air inflow device for infusion set |
| CN109125819A (en) * | 2018-07-05 | 2019-01-04 | 南方医科大学南方医院 | It can prevent the negative-pressure phlegm sucking equipment of sputum adverse current |
| CN116212159A (en) * | 2023-05-10 | 2023-06-06 | 中国人民解放军总医院第二医学中心 | Gastroenterology infusion set with negative pressure liquid level sensing |
-
2014
- 2014-02-21 CN CN201420083580.0U patent/CN203815959U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105641778A (en) * | 2016-03-31 | 2016-06-08 | 江苏苏云医疗器材有限公司 | Air inflow device for infusion set |
| CN109125819A (en) * | 2018-07-05 | 2019-01-04 | 南方医科大学南方医院 | It can prevent the negative-pressure phlegm sucking equipment of sputum adverse current |
| CN116212159A (en) * | 2023-05-10 | 2023-06-06 | 中国人民解放军总医院第二医学中心 | Gastroenterology infusion set with negative pressure liquid level sensing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 Termination date: 20150221 |
|
| EXPY | Termination of patent right or utility model |