CN208893344U - A kind of remaining needle and infusion device - Google Patents
A kind of remaining needle and infusion device Download PDFInfo
- Publication number
- CN208893344U CN208893344U CN201820622910.7U CN201820622910U CN208893344U CN 208893344 U CN208893344 U CN 208893344U CN 201820622910 U CN201820622910 U CN 201820622910U CN 208893344 U CN208893344 U CN 208893344U
- Authority
- CN
- China
- Prior art keywords
- control valve
- inlet tube
- remaining needle
- needle
- catheter
- 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 18
- 239000007788 liquid Substances 0.000 claims abstract description 24
- 230000005611 electricity Effects 0.000 claims 1
- 230000010412 perfusion Effects 0.000 abstract description 19
- 239000008280 blood Substances 0.000 abstract description 7
- 210000004369 blood Anatomy 0.000 abstract description 7
- 210000004204 blood vessel Anatomy 0.000 abstract description 7
- 229940079593 drug Drugs 0.000 description 9
- 239000003814 drug Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 239000000243 solution Substances 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 206010049976 Impatience Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000001990 intravenous administration Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 229940127558 rescue medication Drugs 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to medical instruments fields, in particular to a kind of remaining needle and infusion device.Remaining needle includes: syringe needle, inlet tube, catheter, gas deflation assembly, and inlet tube is connect by catheter with syringe needle, and inlet tube is provided with the first control valve；Inlet tube is connected to catheter；Gas deflation assembly is provided with the second control valve far from one end of syringe needle.Use remaining needle provided by the utility model, when having bubble in perfusion tube, close the first control valve, bubble is avoided to enter blood vessel by the first control valve and syringe needle, since inlet tube is connected to catheter, bubble enters gas deflation assembly by catheter, releases bubble by exhaust valve, is then shut off exhaust valve.The second control valve is closed, the liquid in perfusion tube no longer passes through gas deflation assembly, opens the first control valve, and the liquid in perfusion tube enters blood vessel.Removal of bubbles in perfusion tube and remaining needle can be avoided gas from entering blood by the remaining needle provided through this embodiment.
Description
Technical field
The utility model relates to medical instruments fields, in particular to a kind of remaining needle and infusion device.
Background technique
Pain caused by the use of remaining needle can be reduced infant due to venipuncture repeatedly and to the fear having an injection, mitigates
The impatience of parent is convenient for clinical application, and anxious, critical patient rescue medication mitigates the workload of nurse, reduces infant pain
Bitterly, thus venous detaining needle is in wide clinical application.
But during transfusion operation, the air bubble problem in perfusion tube annoyings always medical worker, therefore, excludes defeated
Gas all becomes the important topic in remaining needle field in liquid pipe.
Utility model content
The purpose of this utility model is to provide a kind of remaining needle and infusion device, it is intended to improve existing remaining needle not
The problem of capable of excluding gas in perfusion tube and remaining needle.
The utility model provides a kind of technical solution:
A kind of remaining needle, remaining needle include:
Syringe needle, inlet tube, catheter, gas deflation assembly, inlet tube are connect with syringe needle, and inlet tube is arranged close to one end of syringe needle
There is the first control valve；The opposite both ends of catheter are connected to inlet tube, and gas deflation assembly is set to catheter；Gas deflation assembly is far from needle
One end of head is provided with the second control valve；
Gas deflation assembly includes liquid storage chamber, exhaust valve, and exhaust valve is connect with liquid storage chamber.
In the other embodiments of the utility model, above-mentioned inlet tube is provided with third control valve far from one end of syringe needle.
In the other embodiments of the utility model, above-mentioned remaining needle further includes dustproof cover, and dustproof cover is separate with inlet tube
One end of syringe needle is rotatablely connected.
In the other embodiments of the utility model, above-mentioned exhaust valve is check valve.
In the other embodiments of the utility model, above-mentioned remaining needle further includes adhesion button, and adhesion button is connect with inlet tube.
In the other embodiments of the utility model, above-mentioned remaining needle further includes control device, the first control valve, the second control
Valve processed with control device communicate to connect, control device control the first control valve, the second control valve it is on and off.
In the other embodiments of the utility model, above-mentioned first control valve, the second control valve are solenoid valve.
In the other embodiments of the utility model, above-mentioned first control valve is check valve.
In the other embodiments of the utility model, above-mentioned inlet tube is provided with internal screw thread far from the inner wall of syringe needle one end.
The utility model also provides a kind of technical solution:
A kind of infusion device, infusion device include above-mentioned remaining needle.
The beneficial effect of remaining needle and infusion device provided by the embodiment of the utility model is:
Using remaining needle provided by the utility model, when having bubble in perfusion tube, the first control valve is closed, avoids bubble logical
It crosses the first control valve and syringe needle enters blood vessel, since inlet tube is connected to catheter, bubble enters gas deflation assembly by catheter,
Bubble is released by exhaust valve, is then shut off exhaust valve.The second control valve is closed, the liquid in perfusion tube is not passing through exhaust
Component, opens the first control valve, and the liquid in perfusion tube enters blood vessel.The remaining needle provided through this embodiment, can will be defeated
Removal of bubbles in liquid pipe and remaining needle, avoids bubble from entering blood.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram of remaining needle provided by the embodiment of the utility model.
Fig. 2 shows syringe needle provided by the embodiment of the utility model, inlet tube, catheter structural schematic diagram.
Fig. 3 shows the structural schematic diagram of inlet tube provided by the embodiment of the utility model.
Fig. 4 is the structural schematic diagram of gas deflation assembly provided by the embodiment of the utility model.
Icon: 100- remaining needle；110- syringe needle；120- inlet tube；The first control valve of 121-；122- third control valve；
130- catheter；150- gas deflation assembly；The second control valve of 151-；152- exhaust valve；153- liquid storage chamber.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here in attached drawing description and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the range of the utility model protection.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the utility model embodiment, it is to be understood that the orientation or positional relationship of instruction is based on attached
Orientation or positional relationship shown in figure or the utility model product using when the orientation or positional relationship usually put, or
Person is the orientation or positional relationship that those skilled in the art usually understand, is merely for convenience of description the utility model and simplification is retouched
It states, rather than the equipment of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation,
Therefore it should not be understood as limiting the present invention.
In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, it is not understood to indicate or imply
Relative importance.
In the description of the utility model embodiment, it is also necessary to which explanation is unless specifically defined or limited otherwise, art
Language " setting ", " installation ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or
It is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be by between intermediary
It connects connected, can be the connection inside two elements.For the ordinary skill in the art, can be understood with concrete condition
The concrete meaning of above-mentioned term in the present invention.
Embodiment
Fig. 1 is the structural schematic diagram of remaining needle 100 provided by the embodiment of the utility model.Referring to Fig. 1, the present embodiment mentions
A kind of remaining needle 100 is supplied, in the present embodiment, remaining needle 100 is mainly used for having an intravenous drip.
In detail, in the present embodiment, remaining needle 100 includes syringe needle 110, inlet tube 120, catheter 130, gas deflation assembly
150。
Inlet tube 120 is connect by catheter 130 with syringe needle 110, and inlet tube 120 is provided with close to one end of syringe needle 110
First control valve 121；The opposite both ends of catheter 130 are connected to inlet tube 120, and gas deflation assembly 150 is set to catheter 130；
Gas deflation assembly 150 is provided with the second control valve 151 far from one end of syringe needle 110.
Gas deflation assembly 150 includes liquid storage chamber 153, exhaust valve 152 (see Fig. 4), and exhaust valve 152 is connect with liquid storage chamber 153.
When using remaining needle 100, when having bubble in perfusion tube, the first control valve 121 is closed, avoids bubble by first
Control valve 121 and syringe needle 110 enter blood vessel, and since inlet tube 120 is connected to catheter 130, bubble is entered by catheter 130
Gas deflation assembly 150 opens exhaust valve 152, bubble is released, and after bubble is released, closes exhaust valve 152.Close the second control valve
151, the liquid in perfusion tube opens the first control valve 121, the liquid in perfusion tube enters blood not by gas deflation assembly 150
Pipe.Removal of bubbles in perfusion tube and remaining needle 100 can be avoided bubble by the remaining needle 100 provided through this embodiment
Into blood.
Fig. 2 shows the structural representations of syringe needle 110, inlet tube 120, catheter 130 provided by the embodiment of the utility model
Figure.Please refer to Fig. 2.
From the above, syringe needle 110 is connected to inlet tube 120, and 130 both ends of catheter are connected to inlet tube 120, changes speech
It, constitutes two threeways between catheter 130 and inlet tube 120.Gas deflation assembly 150 is set to catheter 130.Inlet tube 120
It is mainly used for by syringe needle 110 importing drug in blood.Bubble is guided to gas deflation assembly 150 by catheter 130.
Fig. 3 shows the structural schematic diagram of inlet tube 120 provided by the embodiment of the utility model.Please refer to Fig. 3.
Further, inlet tube 120 is provided with the first control valve 121 close to one end of syringe needle 110；First control valve 121
It is set to the downstream of catheter 130, after closing the first control valve 121, bubble does not enter syringe needle 110, enters by catheter 130
Gas deflation assembly 150.Gas deflation assembly 150 is provided with the second control valve 151 far from one end of syringe needle 110.In other words, the second control valve
Whether 151 liquid that can control in inlet tube 120, which pass through catheter 130, enters gas deflation assembly 150.
By the setting of the first control valve 121 and the second control valve 151, bubble is avoided to enter in syringe needle 110, removal of bubbles
After complete, the second control valve 151 makes drug not enter gas deflation assembly 150 to be directly entered in syringe needle 110.
Further, in the present embodiment, inlet tube 120 is also equipped with third control valve far from one end of syringe needle 110
122.In other words, 120 both ends of inlet tube are provided with control valve, respectively the first control valve 121, third control valve 122.
Third control valve 122 can control whether drug enters inlet tube 120, and in use, bubble enters feed liquor
After pipe 120, third control valve 122 is closed, drug can be prevented to go successively to inlet tube 120, it, can be to avoid mistake by removal of bubbles
More drugs is excluded by gas deflation assembly 150, avoids the waste of drug.
In the other embodiments of the utility model, third control valve 122 is that check valve will be infused in infusion process
Port be inserted into third control valve 122, by drug by check valve importing inlet tube 120.After the port of infusion is removed, third
Control valve 122 is closed, and check valve avoids the drug reflux in inlet tube 120.
In the present embodiment, above-mentioned check valve uses check valve in the prior art, and the present embodiment will not be described in great detail its knot
Structure and connection relationship.
In the other embodiments of the utility model, the first control valve 121 is also check valve, and the first control valve 121 is set
It is set to check valve, is avoided that in blood backflow to remaining needle 100.
In the other embodiments of the utility model, remaining needle 100 further includes control device (not shown), and first
Control valve 121, the second control valve 151 are communicated to connect with control device, and control device controls the control of the first control valve 121, second
Valve 151 processed it is on and off.
Control device control the first control valve 121, the second control valve 151 it is on and off, be more advantageous to control.Control
Device can be set can be separately provided in remaining needle 100 or control device.
Control device is set to remaining needle 100, and control device is independently arranged, and control device can be PLC or single-chip microcontroller.
Further, in the present embodiment, the first control valve 121, the second control valve 151 are solenoid valve.Control device
Control solenoid valve.It should be noted that in the other embodiments of the utility model, the first control valve 121, the second control valve
151 may be the valve body of other structures.
Further, in the other embodiments of the utility model, 120 inner wall of inlet tube is provided with flowmeter, flowmeter
The fluid flow in inlet tube 120 is measured, flowmeter is electrically connected with control device, when the changes in flow rate of flowmeter metering, generation
The flow of table liquid reduces, and liquid, which has conveyed, infiltrates air in drug.Control device controls the first control valve 121 and closes.
In the present embodiment.Inlet tube 120 is provided with internal screw thread far from the inner wall of 110 one end of syringe needle.Convenient for inlet tube 120
With the connection of fluid infusion port.
In the other embodiments of the utility model, remaining needle 100 further includes dustproof cover (not shown), dustproof cover with
Inlet tube 120 is rotatablely connected far from one end of syringe needle 110.Dustproof cover is avoided that dust, bacterium etc. enter inlet tube 120.
In the other embodiments of the utility model, remaining needle 100 further includes adhesion button, and adhesion button and inlet tube 120 connect
It connects.
Fig. 4 is the structural schematic diagram of gas deflation assembly 150 provided by the embodiment of the utility model.Please refer to Fig. 4.
In the present embodiment, gas deflation assembly 150 includes liquid storage chamber 153, exhaust valve 152, exhaust valve 152 and liquid storage chamber 153
Connection.
In the present embodiment, exhaust valve 152 also be check valve, can by the bubble or fluid removal in liquid storage chamber 153,
It is avoided that extraneous air enters liquid storage chamber 153 by exhaust valve 152.
The major advantage of remaining needle 100 provided by the embodiment of the utility model is:
Using remaining needle 100 provided by the utility model, when having bubble in perfusion tube, the first control valve 121 is closed, is avoided
Bubble enters blood vessel by the first control valve 121 and syringe needle 110, and since inlet tube 120 is connected to catheter 130, bubble passes through
Catheter 130 enters gas deflation assembly 150, opens exhaust valve 152, bubble is released, and after bubble is released, closes exhaust valve 152.It closes
The second control valve 151 is closed, the liquid in perfusion tube by gas deflation assembly 150, is not opening the first control valve 121, in perfusion tube
Liquid enter blood vessel.The remaining needle 100 provided through this embodiment, can be by the bubble in perfusion tube and remaining needle 100
It excludes, bubble is avoided to enter blood.
The utility model also provides a kind of skill infusion device, and infusion device includes above-mentioned remaining needle 100.Further,
Infusion device further includes infusion bag and perfusion tube, and infusion bag is detachably connected by perfusion tube with remaining needle 100.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of remaining needle, which is characterized in that the remaining needle includes:
Syringe needle, inlet tube, catheter, gas deflation assembly, the inlet tube are connect with the syringe needle, and the inlet tube is close to the needle
One end of head is provided with the first control valve；The opposite both ends of the catheter are connected to the inlet tube, and the gas deflation assembly is set
It is placed in the catheter；The gas deflation assembly is provided with the second control valve far from one end of the syringe needle；
The gas deflation assembly includes liquid storage chamber, exhaust valve, and the exhaust valve is connect with the liquid storage chamber.
2. remaining needle according to claim 1, which is characterized in that the inlet tube is provided with far from one end of the syringe needle
Third control valve.
3. remaining needle according to claim 1, which is characterized in that the remaining needle further includes dustproof cover, the dustproof cover
It is rotatablely connected with the inlet tube far from one end of the syringe needle.
4. remaining needle according to claim 1, which is characterized in that the exhaust valve is check valve.
5. remaining needle according to claim 1, which is characterized in that the remaining needle further includes adhesion button, the adhesion button
It is connect with the inlet tube.
6. remaining needle according to claim 1, which is characterized in that the remaining needle further includes control device, and described first
Control valve, second control valve are communicated to connect with the control device, the control device control first control valve,
Second control valve it is on and off.
7. remaining needle according to claim 6, which is characterized in that first control valve, second control valve are electricity
Magnet valve.
8. remaining needle according to claim 1, which is characterized in that first control valve is check valve.
9. remaining needle according to claim 1, which is characterized in that the inlet tube is set far from the inner wall of described syringe needle one end
It is equipped with internal screw thread.
10. a kind of infusion device, which is characterized in that the infusion device includes the described in any item remaining needles of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820622910.7U CN208893344U (en) | 2018-04-27 | 2018-04-27 | A kind of remaining needle and infusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820622910.7U CN208893344U (en) | 2018-04-27 | 2018-04-27 | A kind of remaining needle and infusion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208893344U true CN208893344U (en) | 2019-05-24 |
Family
ID=66565653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820622910.7U Expired - Fee Related CN208893344U (en) | 2018-04-27 | 2018-04-27 | A kind of remaining needle and infusion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208893344U (en) |
-
2018
- 2018-04-27 CN CN201820622910.7U patent/CN208893344U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190524 |