CN108785789A - A kind of hydrocone type anti-blood back medical transfusion device - Google Patents
A kind of hydrocone type anti-blood back medical transfusion device Download PDFInfo
- Publication number
- CN108785789A CN108785789A CN201810370647.1A CN201810370647A CN108785789A CN 108785789 A CN108785789 A CN 108785789A CN 201810370647 A CN201810370647 A CN 201810370647A CN 108785789 A CN108785789 A CN 108785789A
- Authority
- CN
- China
- Prior art keywords
- dropper
- surrounding layer
- tube
- transfusion device
- blood back
- 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.)
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/36—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests with means for eliminating or preventing injection or infusion of air into body
Abstract
The present invention relates to a kind of hydrocone type anti-blood back medical transfusion devices, including：Bottle stopper needle, dropper, adjuster, filter, syringe needle and woven hose, bottle stopper needle, dropper, adjuster, filter and syringe needle pass sequentially through woven hose and connect two-by-two, dropper includes side wall, upper wall and lower wall, upper wall includes inlet connector, lower wall includes liquid outlet connector, one layer of surrounding layer is surrounded outside outer wall, surrounding layer is hollow-core construction, side wall further includes a trepanning, opening is provided with a single u-shaped pipe, surrounding layer is connected to dropper by U-tube, the ends U-tube A are set in surrounding layer, U-shaped pipe B end is set in dropper, surrounding layer bottom level is higher than the height of dropper lower wall, surrounding layer overhead height is less than the height of dropper upper wall.
Description
Technical field
The present invention relates to medical treatment and nursing instrument field more particularly to a kind of hydrocone type anti-blood back medical transfusion devices.
Background technology
Currently, the structure of existing Murphy's burette be monoblock type longitudinal straight tube structure, the dropping liquid nozzle of upper part with
The diameter of the feed liquor nozzle of lower part is identical and on the same line.Liquid is instilled into dropper since dropping liquid nozzle needs are intermittent
The liquid volume of entire dropper is set to be maintained at the half or 2/3rds of entire dropper, therefore the liquid in dropper needs to keep
Certain drop speed is dripped downwards.This just generates a kind of phenomenon：When the liquid formerly dripped is dripped to the feed liquor nozzle of lower part, it can rush
It hits and generates a certain amount of bubble, a small amount of bubble enters the inlet tube of lower part with liquid, a small amount of bubble quilt again in floating-upward process
The liquid subsequently dripped is hit again, is stamped into feed liquor nozzle and is flowed downward simultaneously with liquid, requires medical care people at this time
The case where checking dropping liquid of not timing of member, carries out elimination adjustment to the bubble of generation at any time.For medical staff, need with
When observe, drain air in time, working strength is larger, time-consuming and laborious；For transfusion outpatient, it is be easy to cause worry fear,
Once into long section air, it can also cause air ram, blood reflux that syringe needle is caused to block or even threat to life.
Invention content
Goal of the invention：
For in infusion process, for medical staff, needing to observe at any time, drain air in time, working strength is larger,
It is time-consuming and laborious；For transfusion outpatient, it is panic to be easy to cause worry, once into long section air, can also cause air ram,
Blood reflux causes syringe needle to block or even threat to life problem, and the present invention provides a kind of hydrocone type anti-blood back medical transfusion device.
Technical solution：
A kind of hydrocone type anti-blood back medical transfusion device, including：Bottle stopper needle, dropper, adjuster, filter, syringe needle and infusion
Pipe, the bottle stopper needle, dropper, adjuster, filter and syringe needle pass sequentially through woven hose and connect two-by-two, and the dropper includes side
Wall, upper wall and lower wall, the upper wall include inlet connector, and the lower wall includes liquid outlet connector, outside the outer wall
Portion surrounds one layer of surrounding layer, and the surrounding layer is hollow-core construction, and the side wall further includes a trepanning, and the opening is passed through to be arranged
There are a single u-shaped pipe, the surrounding layer to be connected to by the U-tube with the dropper, the ends the U-tube A are set to the outsourcing
In layer, the U-shaped pipe B end is set in the dropper, and the surrounding layer bottom level is higher than the height of the dropper lower wall, institute
State the height that surrounding layer overhead height is less than the dropper upper wall.
As a kind of preferred embodiment of the present invention, the ends the U-tube A connect the surrounding layer bottom end, the U-shaped pipe B end
The dropper lower wall is connected, the surrounding layer bottom end is with the dropper lower wall for fixing the U-tube.
As a kind of preferred embodiment of the present invention, the ends the U-tube A are provided with macropore with surrounding layer bottom end junction
Hole, the U-shaped pipe B end are provided with several pores with dropper lower wall junction, and the macroscopic void is for being connected to the outsourcing
Layer and the U-tube, the pore is for being connected to the U-tube and the dropper.
As the present invention a kind of preferred embodiment, it is described go out liquid connector be internally provided with hydrophilic not close air film.
As a kind of preferred embodiment of the present invention, the surrounding layer further includes looped pipeline, and the looped pipeline is set to the outsourcing
Layer upper end, one end that the looped pipeline is not connected with the surrounding layer are provided with secondary needle, and the pair needle bore is less than the bottle stopper needle mouth
Diameter.
As a kind of preferred embodiment of the present invention, the surrounding layer is provided with secondary inlet, and the looped pipeline extends to described
On the inside of surrounding layer and the secondary inlet is connected, the pair inlet includes suitable for reading and lower mouth, and the back cut diameter is more than institute
Lower mouth is stated, the peripheral shape suitable for reading and the peripheries Xia Kou are all hemisphere face shape.
As a kind of preferred embodiment of the present invention, floatation type hydrophobic membrane, the floatation type are provided in the pair inlet
Hydrophobic membrane diameter is more than the back cut diameter, and the hydrophobic film density of floatation type is less than the density of transfusion solution.
As a kind of preferred embodiment of the present invention, the syringe needle is connect with the woven hose by connector, the connection
Head includes upper port and lower port, and the upper port connects the woven hose, and the lower port connects the syringe needle, it is described on
Port bore is consistent with the lower port bore.
As a kind of preferred embodiment of the present invention, the upper port is provided with fine-structure mesh film.
As a kind of preferred embodiment of the present invention, the lower port is provided with floatation type hydrophobic membrane, and the floatation type is hydrophobic
Film diameter is more than the lower port bore.
The present invention realizes following advantageous effect：
1. utilizing siphon principle, by the liquid sucking dropper in surrounding layer when dropper herb liquid liquid level is relatively low, prevent
While calling medical staff, because liquid, which is quickly flow to end, leads to blood back the phenomenon that.
2. carrying out the filtering of bubble using hydrophilic not close air film, and utilize hydrophobic membrane suitable for reading to secondary inlet and connection
Head lower port is closed, anti-return blood.
Description of the drawings
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the disclosure
Example, and consistent with the instructions for explaining the principles of this disclosure.
Fig. 1 is dropper structural schematic diagram；
Fig. 2 is infusion device schematic diagram；
Fig. 3 is three schematic diagram of embodiment；
Fig. 4 is example IV schematic diagram.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Embodiment one：
Reference chart is Fig. 1, Fig. 2.A kind of hydrocone type anti-blood back medical transfusion device, including：Bottle stopper needle, dropper 1, adjuster, mistake
Filter, syringe needle and woven hose, the bottle stopper needle, dropper 1, adjuster, filter and syringe needle pass sequentially through woven hose two-by-two
Connection, the dropper 1 include side wall, upper wall and lower wall, and the upper wall includes inlet connector, and the lower wall includes liquid
Mouth connector, the outer wall outside surround one layer of surrounding layer 2, and the surrounding layer 2 is hollow-core construction, and the side wall further includes one
Trepanning is provided with a single u-shaped pipe 3 across the opening, and the surrounding layer 2 is connected to the dropper 1 by the U-tube 3, institute
It states the ends U-tube 3A to be set in the surrounding layer 2, the ends the U-tube 3B are set in the dropper 1,2 bottom of the surrounding layer
Height is higher than the height of 1 lower wall of the dropper, and 2 overhead height of the surrounding layer is less than the height of 1 upper wall of the dropper.
As a kind of preferred embodiment of the present invention, the ends the U-tube 3A connect 2 bottom end of surrounding layer, the U-tube 3B
End connects 1 lower wall of dropper, and 2 bottom end of the surrounding layer is with 1 lower wall of the dropper for fixing the U-tube 3.
As a kind of preferred embodiment of the present invention, the ends the U-tube 3A are provided with greatly with 2 bottom end junction of the surrounding layer
Hole, the ends the U-tube 3B are provided with several pores with 1 lower wall junction of the dropper, and the macroscopic void is described for being connected to
Surrounding layer 2 and the U-tube 3, the pore is for being connected to the U-tube 3 and the dropper 1.
As the present invention a kind of preferred embodiment, it is described go out liquid connector be internally provided with hydrophilic not close air film.
In specific implementation process, in the set-up procedure of infusion, bottle stopper needle is inserted into the bottleneck of infusion bottle by medical staff,
Liquid in infusion bottle is flowed into from bottle stopper needle in dropper 1, and liquid collects in dropper 1, and the work of fluid-tight is generated to the ends U-tube 3B
With liquid level gradually rises, and surrounding layer 2 is the softer material of quality, and dropper 1 is the harder material of quality, and medical staff squeezes outer
Covering 2, the air in surrounding layer 2 are extruded, and air pressure is lower, under the influence of air pressure in dropper 1 a part of liquid be inhaled into it is outer
In covering 2, the liquid in surrounding layer 2 gradually collects, and liquid liquid level increases, and liquid generates the ends U-tube 3A the effect of fluid-tight.
During liquid in infusion bottle is gradually dropped dropper 1, the liquid liquid level in dropper 1 is higher than the medicine in surrounding layer 2
Liquid liquid level, it is poor that liquid liquid level in dropper 1 and the liquid liquid level in surrounding layer 2 form certain liquid level, certain being formed
Liquid level difference after, according to siphon principle, the liquid in dropper 1 can continue via U-tube 3 flow into surrounding layer 2 in.Due to usual
Liquid level in dropper 1 persistently has liquid output until the liquid level in dropper 1 all at 2/3rds of dropper 1 in U-tube 3
At reach dropper 1 2/3rds, at this point, the liquid liquid level in dropper 1 is consistent with the liquid liquid level in surrounding layer 2, reach
To dynamic equilibrium.When the liquid in infusion bottle exhausts, the consumption that the liquid in dropper 1 can be slowly, at this point, the medicine in dropper 1
Liquid liquid level can continuously decrease, and so as to cause in dynamic, the liquid liquid level in dropper 1 is less than the liquid in surrounding layer 2
Liquid level, under the action of siphon principle, the liquid in surrounding layer 2 can flow into dropper 1 via U-tube 3, via siphon principle
Effect and U-tube 3 adjustment, the liquid liquid level in dropper 1 forms dynamic with the liquid liquid level in surrounding layer 2
Balance.Measuring for liquid is sucked during the macroscopic void at the ends U-tube 3A makes the liquid in surrounding layer 2 flow in dropper 1
Ensure to sufficient, is not in that 3 suction velocity of U-tube is slower than liquid outlet and goes out liquid speed degree, a large amount of pore in the ends U-tube 3B ensures
The speed of 3 herb liquid of U-tube outflow can be matched with 3 suction velocity of U-tube, and can accomplish to a certain extent for
The filtration of bubble.
Embodiment two：
Reference chart is Fig. 3.For embodiment one, the difference of the present embodiment is：
As a kind of preferred embodiment of the present invention, the surrounding layer 2 further includes looped pipeline, and the looped pipeline is set to the surrounding layer 2
Upper end, one end that the looped pipeline is not connected with the surrounding layer 2 are provided with secondary needle, and the pair needle bore is less than the bottle stopper needle mouth
Diameter.
As a kind of preferred embodiment of the present invention, the surrounding layer 2 is provided with secondary inlet 4, and the looped pipeline extends to institute
It states 2 inside of surrounding layer and connects the secondary inlet 4, the pair inlet 4 includes suitable for reading and lower mouth, and the back cut diameter is big
In the lower mouth, the peripheral shape suitable for reading and the peripheries Xia Kou are all hemisphere face shape.
As a kind of preferred embodiment of the present invention, floatation type hydrophobic membrane, the floatation type are provided in the pair inlet 4
Hydrophobic membrane diameter is more than the back cut diameter, and the hydrophobic film density of floatation type is less than the density of transfusion solution.
In specific implementation process, when medical staff carries out infusion preparation, secondary needle and bottle stopper needle are inserted into infusion bottle
In, since secondary needle bore is less than the bore of bottle stopper needle, the speed that liquid flows into surrounding layer 2 via secondary needle is less than liquid via bottle stopper
Needle flows into the speed of dropper 1, and since 2 bottom level of surrounding layer is higher than the height of 1 lower wall of dropper, in the process of liquid accumulation
In, originally the liquid level in surrounding layer 2 is higher than liquid level in dropper 1, therefore, under the action of siphon principle, surrounding layer 2
In liquid be inhaled into dropper 1, accumulation to a certain extent after, due to the difference of flow velocity, reaching 1 liquid of dropper and outsourcing
Before 2 herb liquid of layer reach dynamic equilibrium, the liquid liquid level in dropper 1 is higher than 2 herb liquid liquid level of surrounding layer, due to siphon principle
Under the action of liquid in dropper 1 flow into surrounding layer 2.When liquid in surrounding layer 2 is reached at the most top of surrounding layer 2, secondary feed liquor
Floatation type hydrophobic membrane in mouth 4 can block secondary inlet 4 under the action of liquid level.
Embodiment three：
Reference chart is Fig. 4.For embodiment one, the difference of the present embodiment is：
As a kind of preferred embodiment of the present invention, the syringe needle is connect with the woven hose by connector, the connector packet
Include upper port 5 and lower port 6, the upper port 5 connects the woven hose, and the lower port 6 connects the syringe needle, it is described on
5 bore of port is consistent with 6 bore of the lower port.
As a kind of preferred embodiment of the present invention, the upper port 5 is provided with fine-structure mesh film 7.
As a kind of preferred embodiment of the present invention, the lower port 6 is provided with floatation type hydrophobic membrane, and the floatation type is hydrophobic
Film diameter is more than 6 bore of the lower port.
It, can remaining liquid, liquid and fine-structure mesh film 7 in the mesh of fine-structure mesh film 7 when liquid is flow to end in specific implementation process
One of fluid-tight film is formed, being air connected for woven hose and syringe needle has been completely cut off, prevents air from entering in patient body, while also by fine-structure mesh
The air pressure of 7 lower section of film is fixed so that the air pressure in the syringe needle of 7 lower section of fine-structure mesh film is consistent with air pressure in patient body, is prevented
The generation of blood back situation.After liquid is flow to end and the fluid-tight of fine-structure mesh film 7 is formed, floatation type hydrophobic membrane can block lower port 6, right
The case where syringe needle is closed, anti-return blood occurs.
The above embodiments merely illustrate the technical concept and features of the present invention, and the purpose is to allow the skill for being familiar with the technical field
Art personnel can understand the content of the present invention and implement it accordingly, and can not be limited the scope of the invention with this.All bases
Equivalent changes or modifications made by spirit of the invention, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of hydrocone type anti-blood back medical transfusion device, including：Bottle stopper needle, dropper, adjuster, filter, syringe needle and defeated
Liquid pipe, the bottle stopper needle, dropper, adjuster, filter and syringe needle pass sequentially through woven hose and connect two-by-two, and the dropper includes
Side wall, upper wall and lower wall, the upper wall include inlet connector, and the lower wall includes liquid outlet connector, and feature exists
In：One layer of surrounding layer is surrounded outside the outer wall, the surrounding layer is hollow-core construction, and the side wall further includes a trepanning, is worn
It crosses the opening and is provided with a single u-shaped pipe, the surrounding layer is connected to the dropper by the U-tube, the ends the U-tube A
It is set in the surrounding layer, the U-shaped pipe B end is set in the dropper, and the surrounding layer bottom level is higher than the drop
The height of pipe lower wall, the surrounding layer overhead height are less than the height of the dropper upper wall.
2. a kind of hydrocone type anti-blood back medical transfusion device according to claim 1, it is characterised in that：The ends the U-tube A
The surrounding layer bottom end is connected, the U-shaped pipe B end connects the dropper lower wall, the surrounding layer bottom end and the dropper lower wall
For fixing the U-tube.
3. a kind of hydrocone type anti-blood back medical transfusion device according to claim 2, it is characterised in that：The ends the U-tube A
Surrounding layer bottom end junction is provided with macroscopic void, the U-shaped pipe B end is provided with several with dropper lower wall junction
Pore, the macroscopic void for being connected to the surrounding layer and the U-tube, the pore be used to be connected to the U-tube with it is described
Dropper.
4. a kind of hydrocone type anti-blood back medical transfusion device according to claim 1, it is characterised in that：It is described go out liquid connection
Head is internally provided with hydrophilic not close air film.
5. a kind of hydrocone type anti-blood back medical transfusion device according to claim 1, it is characterised in that：The surrounding layer is also
Including looped pipeline, the looped pipeline is set to the surrounding layer upper end, and one end that the looped pipeline is not connected with the surrounding layer is provided with pair
Needle, the pair needle bore are less than the bottle stopper needle bore.
6. a kind of hydrocone type anti-blood back medical transfusion device according to claim 5, it is characterised in that：The surrounding layer is set
It is equipped with secondary inlet, the looped pipeline extends on the inside of the surrounding layer and connect the secondary inlet, and the pair inlet includes
Suitable for reading and lower mouth, the back cut diameter are more than the lower mouth, and the peripheral shape suitable for reading and the peripheries Xia Kou are all half
Spheric.
7. a kind of hydrocone type anti-blood back medical transfusion device according to claim 6, it is characterised in that：The pair inlet
In be provided with floatation type hydrophobic membrane, the floatation type hydrophobic membrane diameter is more than the back cut diameter, and the floatation type hydrophobic membrane is close
Density of the degree less than transfusion solution.
8. a kind of hydrocone type anti-blood back medical transfusion device according to claim 1, it is characterised in that：The syringe needle and institute
It states woven hose to connect by connector, the connector includes upper port and lower port, and the upper port connects the infusion
Pipe, the lower port connect the syringe needle, and the upper port bore is consistent with the lower port bore.
9. a kind of hydrocone type anti-blood back medical transfusion device according to claim 8, it is characterised in that：The upper port is set
It is equipped with fine-structure mesh film.
10. a kind of hydrocone type anti-blood back medical transfusion device according to claim 8, it is characterised in that：The lower port
It is provided with floatation type hydrophobic membrane, the floatation type hydrophobic membrane diameter is more than the lower port bore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810370647.1A CN108785789A (en) | 2018-04-24 | 2018-04-24 | A kind of hydrocone type anti-blood back medical transfusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810370647.1A CN108785789A (en) | 2018-04-24 | 2018-04-24 | A kind of hydrocone type anti-blood back medical transfusion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108785789A true CN108785789A (en) | 2018-11-13 |
Family
ID=64093780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810370647.1A Withdrawn CN108785789A (en) | 2018-04-24 | 2018-04-24 | A kind of hydrocone type anti-blood back medical transfusion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108785789A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023138704A1 (en) * | 2022-01-20 | 2023-07-27 | 上海协贮智能科技服务有限公司 | Automatic liquid-stop and blood-return-prevention infusion set |
-
2018
- 2018-04-24 CN CN201810370647.1A patent/CN108785789A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023138704A1 (en) * | 2022-01-20 | 2023-07-27 | 上海协贮智能科技服务有限公司 | Automatic liquid-stop and blood-return-prevention infusion set |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181113 |
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| WW01 | Invention patent application withdrawn after publication |