CN201263815Y - Double-channel infusion device for preventing blood return - Google Patents
Double-channel infusion device for preventing blood return Download PDFInfo
- Publication number
- CN201263815Y CN201263815Y CNU2008201891944U CN200820189194U CN201263815Y CN 201263815 Y CN201263815 Y CN 201263815Y CN U2008201891944 U CNU2008201891944 U CN U2008201891944U CN 200820189194 U CN200820189194 U CN 200820189194U CN 201263815 Y CN201263815 Y CN 201263815Y
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- float valve
- dropping funnel
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- blood return
- infusion device
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Abstract
The utility model provides a double-channel blood-return prevention infusion device which comprises a bottle plug puncturing device, a dropping funnel, a guide tube and a liquid medicine filter. The double-channel blood-return prevention infusion device is characterized in that a floating valve chamber is arranged between the bottle plug puncturing device and the dropping funnel; and the upper end of the floating valve chamber is communicated with the bottle plug puncturing device, and the lower end is communicated with the dropping funnel. Because the floating valve chamber is arranged between the bottle plug puncturing device and the dropping funnel, the problem that a floating valve is drawn downwards to plug the channel when the infusion device is in gas discharge or rapid liquid infusion is overcome through the switching infusion way of bidirectional channel and single channel of parallel pipes, and the floating valve performs the function appropriately, so that the problems of second gas discharge and blood return are reliably solved to ensure the infusion safety; because a gas discharge protective sleeve with the function of gas discharge and liquid blockage is arranged on the liquid medicine filter, the waste caused by liquid medicine leakage can be prevented; and moreover, the infusion operation can be appropriately carried out according to actual situations, so the utility model is flexible and convenient, and can improve the infusion efficiency and safety.
Description
Technical field
This utility model relates to technical field of medical instruments, is specifically related to a kind of binary channel blood return preventing infusion device.
Background technology
Existing transfusion device is made up of bottle plug puncture unit, conduit, dropping funnel and liquid medicine filter etc., finish in the medicinal liquid transfusion, because carelessness or when having little time to change new medicinal liquid, can cause air admission transfusion device downcomer, the phenomenon that unexpected secondary aerofluxus and blood back occur, secondary aerofluxus meeting causes the conduit air embolism can't continue transfusion, loaded down with trivial details and dangerous during processing, blood back then can cause the blood coagulation in bulk to serious problems such as human body damage, and handle these problems is a thorny trouble in nursery work always.The problems referred to above are since transfusion device comes out, never must be the universality difficult problem of effective solution.
For this reason, the all kinds of patents technology, such as the blood return prevention technology that proposes of 19 Chinese patent or patent application nearly such as Chinese patent application 200720093281.5 blood return prevention tube for transfusions, all lack understanding to the transfusion operation safety, the clinical practice needs have been ignored, can't satisfy the requirement of the relevant flow of transfusion device, in fact not only do not deal with problems, increase the application risk of transfusion device on the contrary.
Summary of the invention
At above-mentioned existing in prior technology problem, the purpose of this utility model provide a kind of simple to operate, function is practical, can effectively prevent the binary channel blood return preventing infusion device of unexpected secondary aerofluxus phenomenon or blood back phenomenon.
For achieving the above object, the technical scheme that this utility model adopted is: a kind of binary channel blood return preventing infusion device, comprise bottle plug puncture unit, dropping funnel, conduit and liquid medicine filter, it is characterized in that also being provided with between described bottle plug puncture unit and the dropping funnel float valve chamber, described float valve chamber upper end is communicated with bottle plug puncture unit, and the lower end is communicated with dropping funnel.
Wherein, be provided with a partition in the middle of the float valve chamber inner chamber described in the utility model, described partition is divided into valve pocket and water cavity with float valve chamber, and described valve pocket is connected with the lower end of water cavity, is provided with float valve in the described valve pocket.
For realizing described water cavity may command circulation or closed being connected with dropping funnel, reach the performance that prevents to need the secondary aerofluxus and prevent blood back, this utility model is provided with tubulation in the lump between described float valve chamber and above-mentioned dropping funnel, described and the tubulation bilateral pipe that runner pipe and a float valve siphunculus are always formed of serving as reasons, described direct current siphunculus upper end is communicated with water cavity, described float valve siphunculus upper end is communicated with valve pocket, and is provided with the clip that may command direct current siphunculus is unimpeded or close on the direct current siphunculus.Certainly, also can not be provided with and tubulation, but but the direct switch that closure or openness are set at the water cavity lower ending opening place of float valve chamber.
For the degree of purity of more effective raising medicinal liquid, this utility model is provided with an aerofluxus sheath with degassing function on described liquid medicine filter, and the place is provided with filter membrane at described aerofluxus sheath lower ending opening.
During use, keep clip to open, after medicinal liquid enters bottle plug puncture unit, flow into the water cavity of float valve chamber, also flow into valve pocket through water cavity simultaneously, make float valve float.Because clip opens, make the path of direct current channel unimpeded, medicinal liquid this path of flowing through, enter downcomer after the aerofluxus, until liquid medicine filter, but because aerofluxus sheath air-out, and obstruct medicinal liquid, the nurse can pull out the aerofluxus sheath in good time, connects transfusion needle and infuses end of operation, can close clip, cut off the path of direct current siphunculus, and only stay the path of float valve siphunculus to keep unimpeded, and medicinal liquid is totally lost, the liquid level of float valve chamber descends, float valve descends thereupon and stops up the float valve passage, and the order transfusion stops, because medicinal liquid is full of conduit, air can not enter in the downcomer, and compressing blood unlikely backflow, reach the performance that prevents to need the secondary aerofluxus and prevent blood back, change new medicinal liquid after, the additional liquid level that promotes float valve chamber once more of medicinal liquid, under buoyancy function, the float valve come-up is opened valve passage, begins transfusion once more.
This utility model is because employing is provided with float valve chamber between bottle plug puncture unit and dropping funnel, and be provided with in the float valve chamber lower end dexterously and tubulation, by also the feeding mode is switched in the bi-directional path and the unipath of tubulation, overcome float valve in the transfusion device aerofluxus or when infusing fast by the problem of drop-down blocking pipeline, float valve is played a role in good time, solved secondary aerofluxus and blood back problem reliably,, kept transfusion safety solving blood return prevention simultaneously; Again owing on described liquid medicine filter, be provided with an aerofluxus sheath with degassing function, and the filter membrane that the blocking solution effect is arranged in the bottom of aerofluxus sheath envelope, again can air-out, even if so untimely actuator of closing, medicinal liquid can seepage yet and is caused waste, thereby can carry out transfusion operation according to practical situation in good time, more flexible, can improve transfusion efficient and safety.In sum, binary channel blood return preventing infusion device described in the utility model is simple in structure, the function practicality, and operation is reliable, feasible process, and with low cost, be fit to carry out big commercial production, have realistic meaning widely.
The utility model is described in further detail below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is the structural representation according to the binary channel blood return preventing infusion device that the utility model proposes;
Fig. 2 is the cutaway view of aerofluxus sheath described in the utility model.
The specific embodiment
Extremely shown in Figure 2 as Fig. 1, this utility model provides a kind of binary channel blood return preventing infusion device, described binary channel blood return preventing infusion device comprises a bottle plug puncture unit 1, a dropping funnel 6, a conduit 7 and a filter 9, also be provided with float valve chamber 2 between wherein said bottle plug puncture unit 1 and the dropping funnel 6, described float valve chamber 2 upper ends are communicated with bottle plug puncture unit 1, and the lower end is communicated with dropping funnel 6.Wherein, be provided with a partition 21 in the middle of described float valve chamber 2 inner chambers, described partition 21 is divided into valve pocket 24 and water cavity 23 with float valve chamber 2, but described partition 21 does not have directly to be connected with the bottom of float valve chamber 2, so described valve pocket 24 is connected with the lower end of water cavity 23, be provided with float valve 22 in the described valve pocket 24, the diameter of described float valve 22 is bigger than valve pocket lower ending opening diameter.As shown in Figure 1, also be provided with tubulation 4 in the lump between described float valve chamber 2 and the above-mentioned dropping funnel 6, described and the tubulation 4 bilateral pipe that runner pipe 41 always and a float valve siphunculus 42 are formed of serving as reasons, described valve pocket 24 upper end closeds, the lower end be provided with opening with and the float valve siphunculus 42 of tubulation 4 be connected, and be provided with the diameter float valve 22 bigger in the described valve pocket 24 than valve pocket lower ending opening diameter; And described water cavity 23 upper ends are provided with opening and be connected with bottle plug puncture unit 1, the lower end is provided with opening and is connected with the direct current siphunculus 41 of above-mentioned and tubulation 4, the described direct current channel 41 of present embodiment is provided with a clip 3, opening or closing and realize that direct current channel 41 is unimpeded or close by described clip 3.
This utility model is work like this, as shown in Figure 1, during use, keep clip 3 to open, after medicinal liquid enters bottle plug puncture unit 1, flow into the water cavity 23 of float valve chamber 2, water cavity 23 is communicated with valve pocket 24, so medicinal liquid can simultaneously also flow into valve pocket 24, makes float valve 22 float, and float valve 22 only is limited to and can moves up and down in valve pocket 24 under the separation of partition 21.Because clip 3 is in open mode, make the path of " bottle plug puncture unit 1-water cavity 23-direct current channel 41-U-shaped threeway 5-dropping funnel 6 " unimpeded, and simultaneously, because float valve 22 floats under the buoyancy of medicinal liquid, it also is unimpeded making the path of " bottle plug puncture unit 1-valve pocket 24-float valve passage 42-U-shaped threeway 5-dropping funnel 6 ", at this moment the medicinal liquid path of flowing through has two, after medicinal liquid enters dropping funnel 6, enter downcomer 7 after the bleeding, until filter 8, but because aerofluxus sheath 10 air-outs, and obstruct medicinal liquid, medicinal liquid can arrive cone joint 91 places of filter 9, and the nurse can pull out aerofluxus sheath 10 in good time, connects transfusion needle and infuses, end of operation, can close clip 3, cut off wherein that a paths be the path of " bottle plug puncture unit 1-water cavity 23-direct current channel 41-U-shaped threeway 5-dropping funnel 6 ", be that the path maintenance of " bottle plug puncture unit 1-valve pocket 24-float valve passage 42-U-shaped threeway 5-dropping funnel 6 " is unimpeded and only stay the path.When medicinal liquid is totally lost, the liquid level of float valve chamber 2 descends, and float valve 22 descends thereupon and stops up float valve passage 42, and the order transfusion stops, and the prevention air enters in the conduit 7 with medicinal liquid.After changing new medicinal liquid, the additional liquid level that promotes float valve chamber 2 once more of medicinal liquid, under buoyancy function, float valve 22 come-ups are opened float valve passage 42, begin transfusion once more.
Because medicinal liquid has the binary channel feeding when entering dropping funnel 6, therefore no matter exhaust process or the big flow when infusing fast can make float valve 22 be in which kind of state, promptly no matter the path of " bottle plug puncture unit 1-valve pocket 24-float valve passage 42-U-shaped threeway 5-dropping funnel 6 " is to be in unimpeded or inaccessible state, the path of " bottle plug puncture unit 1-water cavity 23-direct current channel 41-U-shaped threeway 5-dropping funnel 6 " can the sufficient supplies medicinal liquid, do not influence transfusion device and carry out aerofluxus or implement transfusion fast, overcome the risk of transfusion device underfed or when infusing fast in exhaust process.
Owing to close clip 3, when making the path obturation of " bottle plug puncture unit 1-water cavity 23-direct current channel 41-U-shaped threeway 5-dropping funnel 6 ", it is the closed-circuit working feeding of " bottle plug puncture unit 1-valve pocket 24-float valve passage 42-U-shaped threeway 5-dropping funnel 6 " that the path is then only arranged, and at this moment 22 pairs of unique paths of float valve work.When the medicinal liquid transfusion finishes, float valve chamber 2 liquid levels descend, the decline meeting of float valve 22 is held by the negative pressure that the medicinal liquid in dropping funnel 6 and the conduit 7 forms under action of gravity, and the path at sealing float valve 22 places, because medicinal liquid is full of conduit, air can not enter in the downcomer, and the unlikely backflow of compressing blood, reaches the performance that prevents to need the secondary aerofluxus and prevent blood back.
And after the transfusion of last bottle liquid medicine finishes, open clip 3, because entering of air can make float valve 22 lose efficacy, thereby discharging the medicinal liquid that is stopped sealing in the transfusion device pipeline continues transfusion, avoids medicinal liquid too much residual and cause waste.
As shown in Figure 2, liquid medicine filter 9 described in the utility model is provided with an aerofluxus sheath 10 with degassing function, because the bottom of aerofluxus sheath 10 envelope has the filter membrane 101 of blocking solution effect, non-leakage liquid under≤50KPa hydraulic pressure simultaneously can air-out, so the untimely actuator 8 of closing of nurse, the medicinal liquid seepage of also need not having worried waste, and can handle according to practical situation, carry out transfusion operation in good time, more flexible.This aerofluxus sheath 10 also can be applied to the sheath of transfusion needle, obtains effect same.
Although this utility model is to describe with reference to specific embodiment, this description and not meaning that is construed as limiting this utility model.With reference to description of the present utility model, other of the disclosed embodiments change, and all can expect for those skilled in the art, and this variation should belong in the affiliated claim institute restricted portion.
Claims (9)
1, a kind of binary channel blood return preventing infusion device, comprise bottle plug puncture unit (1), dropping funnel (5), conduit (6) and liquid medicine filter (9), it is characterized in that also being provided with float valve chamber (2) between described bottle plug puncture unit (1) and the dropping funnel (6), described float valve chamber (2) upper end is communicated with bottle plug puncture unit (1), and the lower end is communicated with dropping funnel (6).
2, binary channel blood return preventing infusion device according to claim 1, it is characterized in that being provided with a partition (21) in the middle of above-mentioned float valve chamber (2) inner chamber, described partition (2) is divided into valve pocket (24) and water cavity (23) with float valve chamber (2), described valve pocket (24) is connected with the lower end of water cavity (23), circulation of wherein said water cavity (23) may command or closed being connected with dropping funnel (6).
3, binary channel blood return preventing infusion device according to claim 1, it is characterized in that being provided with between above-mentioned float valve chamber (2) and the above-mentioned dropping funnel (6) tubulation (4) in the lump, described and tubulation (4) the bilateral pipe that runner pipe (41) and a float valve siphunculus (42) are always formed of serving as reasons, described and tubulation (4) upper end is communicated with float valve chamber (2), and the lower end is communicated with dropping funnel (6).
4, according to claim 1 or 2 or 3 described binary channel blood return preventing infusion devices, it is characterized in that above-mentioned valve pocket (24) upper end closed, the lower end be provided with opening with and the float valve siphunculus (42) of tubulation (4) be connected, and be provided with the diameter float valve (22) bigger in the described valve pocket (24) than valve pocket (24) lower ending opening diameter.
5, according to claim 1 or 2 or 3 described binary channel blood return preventing infusion devices, it is characterized in that above-mentioned water cavity (23) upper end is provided with opening and is connected with bottle plug puncture unit (1), the lower end is provided with opening and is connected with the direct current siphunculus (41) of above-mentioned and tubulation (4).
6, binary channel blood return preventing infusion device according to claim 5 is characterized in that above-mentioned direct current channel (41) is provided with a clip (3), opening or closing and realize that above-mentioned water cavity (23) and above-mentioned dropping funnel (6) are unimpeded or close by described clip (3).
7, binary channel blood return preventing infusion device according to claim 1 is characterized in that above-mentioned liquid medicine filter (9) is provided with an aerofluxus sheath (10) with degassing function.
8, binary channel blood return preventing infusion device according to claim 7, it is characterized in that above-mentioned aerofluxus sheath (10) bottom is provided with through hole, be coated with breathable filter membrane (101) on the described through hole, the bottom driving fit of the edge of described filter membrane (101) and aerofluxus sheath (10).
9, binary channel blood return preventing infusion device according to claim 8 is characterized in that above-mentioned filter membrane (101) liquid under≤50KPa hydraulic pressure is non-leakage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201891944U CN201263815Y (en) | 2008-08-27 | 2008-08-27 | Double-channel infusion device for preventing blood return |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201891944U CN201263815Y (en) | 2008-08-27 | 2008-08-27 | Double-channel infusion device for preventing blood return |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201263815Y true CN201263815Y (en) | 2009-07-01 |
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ID=40830161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201891944U Expired - Fee Related CN201263815Y (en) | 2008-08-27 | 2008-08-27 | Double-channel infusion device for preventing blood return |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201263815Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109513066A (en) * | 2018-10-30 | 2019-03-26 | 长沙宁湖机械设备有限公司 | A kind of drip controller |
-
2008
- 2008-08-27 CN CNU2008201891944U patent/CN201263815Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109513066A (en) * | 2018-10-30 | 2019-03-26 | 长沙宁湖机械设备有限公司 | A kind of drip controller |
| CN109513066B (en) * | 2018-10-30 | 2020-12-01 | 青岛市精神卫生中心 | Drip controller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090701 Termination date: 20110827 |