CN205698884U - A kind of preset liquid residue-free injector - Google Patents
A kind of preset liquid residue-free injector Download PDFInfo
- Publication number
- CN205698884U CN205698884U CN201620209583.3U CN201620209583U CN205698884U CN 205698884 U CN205698884 U CN 205698884U CN 201620209583 U CN201620209583 U CN 201620209583U CN 205698884 U CN205698884 U CN 205698884U
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- CN
- China
- Prior art keywords
- syringe
- piston
- injector
- gas
- preset liquid
- 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
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
A kind of preset liquid residue-free injector, belongs to medical injector device field.Including syringe sleeve (3) and the anterior injector push-rod (2) inserted in syringe sleeve (3), injector push-rod (2) front end is provided with piston (6), it is characterized in that: in the syringe sleeve (3) of described piston (6) front side, be provided with preset liquid chamber (7), the liquid outlet of syringe sleeve (3) is provided with end cover, described injector push-rod (2) inner side is provided with positive pressure gas body cavity (1), and front end is provided with gas release assembly.This device simplifies injection operation, can make injection and separately carry out with puncturing, prevent the hazardous drugs infringement to medical personnel when particularly supporting the use with machine.
Description
Technical field
A kind of preset liquid residue-free injector, belongs to medical injector device field.
Background technology
Syringe is a kind of conventional medical injector device, and traditional syringe always stays between piston and syringe sleeve
There is sub-fraction air.Medical personnel need aerofluxus is repeated when extracting medicine in carrying out direct intravenous injection operating process
Bubble operation.Increase the workload of medical personnel, extend injection time.The most after injection, part liquor residue is always had at note
In emitter and syringe needle, cause residual and the waste of medicine, increase treatment of!medical waste difficulty simultaneously.
Utility model content
The technical problems to be solved in the utility model is: overcome the deficiencies in the prior art, it is provided that a kind of easy to use pre-
Put liquid residue-free injector.
This utility model solves its technical problem and be the technical scheme is that this preset liquid residue-free injector, bag
Including syringe sleeve and the anterior injector push-rod inserted in syringe sleeve, injector push-rod front end is provided with piston, its feature
Being: be provided with preset liquid chamber in the syringe sleeve of described pistons front sides, the liquid outlet of syringe sleeve is provided with sealing
End cap, is provided with positive pressure gas body cavity inside described injector push-rod, front end is provided with gas release assembly.By appropriate pre-in syringe
Put liquid and be full of internal (piston is to syringe needle) space so that it is be internal without gas, eliminate aerofluxus bubble behaviour during direct intravenous injection
Make, particularly in when being radiopharmaceutical, simplify operation with machine when supporting the use, its interior barotropic gas can be by puncture needle
Interior medicine is all injected into internal, and in supporting venipuncture needle, preset liquid eliminates the behaviour puncturing forward inner injection liquid
Make.Syringe piston portion after a while has the gas of appropriate malleation, device piston to be injected to shift the (medicine in syringe during bottommost onto simultaneously
Liquid is discharged) it is slightly pressurized down again and pushes away, start the release of barotropic gas in it, make syringe and the liquid in venipuncture needle
Fully enter in the patient.
Connect at the liquid outlet of described syringe sleeve and have syringe needle, syringe needle is cased with antiseepage protection cap.Syringe sleeve
Liquid outlet by syringe needle and antiseepage protection cap, seal, prevent preset liquid Self-discharged.
Tip protection lid it is cased with at the liquid outlet of described syringe sleeve.
Described gas release assembly includes that sealing gasket, push rod lid, gas disengage pin, and sealing gasket is fixed on note by push rod lid
The positive pressure gas body cavity front end of emitter push rod, gas disengages pin and passes push rod lid and described piston, and piston arch is set to gas
Disengage pin and elastic force is provided.When propelling movement injector push-rod is to syringe sleeve bottom, and gas disengages pin stress, overcomes the elastic force of piston
Break through sealing gasket, endoceliac for positive pressure gas barotropic gas is discharged.
Described gas disengages outgassing hole through before and after pin is provided with.
Connecting once property venipuncture needle at the liquid outlet of described syringe sleeve, disposable venipuncture needle includes
Seal connects end, connection flexible pipe, gripping tab and the syringe needle of disposable venipuncture needle.In venipuncture needle hydraulically full, one
The syringe needle of secondary property venipuncture needle is provided with antiseepage protection cap and Tip protection lid.
The described side connecting end is provided with pumpback piston.Pumpback piston can conveniently be reached by having detected whether blood back
Confirm that syringe needle is the most also at Ink vessel transfusing.
Described barotropic gas intracavity is filled with oxygen or carbon dioxide.Because a small amount of gas may be had to enter in the patient, therefore
Barotropic gas should be oxygen or carbon dioxide, supporting venipuncture needle internal hydraulically full and be furnished with one can pumpback in a small amount
Device is to facilitate observation blood back.
Compared with prior art, one of the present utility model preset liquid residue-free injector is had the advantage that
It is: in this utility model syringe, be full of internal (piston is to syringe needle) space by appropriate preset liquid so that it is internal without gas, saves
Aerofluxus bubble operation when having gone direct intravenous injection, particularly in when being radiopharmaceutical, simplify when supporting the use with machine
Operation, the medicine in puncture needle can be all injected into internal by its interior barotropic gas, preset liquid in supporting venipuncture needle
Eliminate the operation puncturing forward inner injection liquid.There is the gas of appropriate malleation in syringe piston portion after a while simultaneously, to be injected
When device piston shifts bottommost onto, (medicinal liquid in syringe is discharged) is slightly pressurized down and pushes away, and starts releasing of barotropic gas in it
Put, make syringe fully enter in the patient with the liquid in venipuncture needle.To sum up this device simplifies injection operation, especially
Injection can be made when being to support the use with machine and separately carry out with puncturing, prevent the hazardous drugs infringement to medical personnel.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of preset liquid residue-free injector of the present utility model.
Fig. 2 is the schematic diagram of the supporting disposable venipuncture needle of preset liquid residue-free injector of the present utility model.
Wherein, 1, positive pressure gas body cavity 2, injector push-rod 3, syringe sleeve 4, sealing gasket 5, push rod lid 6, piston
7, preset liquid chamber 8, gas disengage pin 9, syringe needle 10, antiseepage protection cap 11, Tip protection lid 12, connection end 13, return
Take out piston 14, connect flexible pipe 15, gripping tab 16, the syringe needle of disposable venipuncture needle.
Detailed description of the invention
Fig. 1 is most preferred embodiment of the present utility model, and 1,2 pairs of this utility model are described further below in conjunction with the accompanying drawings.
Referring to the drawings 1: one of the present utility model preset liquid residue-free injector, including syringe sleeve 3 and front portion
Inserting the injector push-rod 2 in syringe sleeve 3, injector push-rod 2 front end is provided with piston 6, between piston 6 and syringe sleeve 3
Being provided with preset liquid chamber 7, connecting at the liquid outlet of syringe sleeve 3 has syringe needle 9, and syringe needle 9 is cased with antiseepage protection cap 10, injection
Tip protection lid 11 it is cased with at the liquid outlet of device sleeve 3；Injector push-rod 2 is provided with positive pressure gas body cavity 1 and gas release assembly,
Oxygen or carbon dioxide it is filled with in positive pressure gas body cavity 1；Gas release assembly includes that sealing gasket 4, push rod lid 5, gas disengage pin 8,
Sealing gasket 4 is fixed on positive pressure gas body cavity 1 front end of injector push-rod 2 by push rod lid 5, and gas disengages pin 8 through push rod lid 5 and lives
Plug 6, piston 6 arch is set to gas and disengages pin 8 and provide elastic force, gas to disengage the most through outgassing hole before and after pin 8 is provided with.
Other embodiments: basic structure is with shown in above-mentioned accompanying drawing 1, except for the difference that: at the liquid outlet of syringe sleeve 3 even
It is connected to disposable venipuncture needle, referring to the drawings 2: disposable venipuncture needle includes connecting end 12, connecting flexible pipe 14, gripping tab
15 and the syringe needle 16 of disposable venipuncture needle, the side connecting end 12 is provided with pumpback piston 13；Disposable venipuncture needle
It is cased with antiseepage protection cap 10 on syringe needle 16 equally, at the liquid outlet of syringe sleeve 3, is also cased with Tip protection lid 11.
Embodiment: first take off antiseepage protection cap 10 during extraction liquid, the liquid (physiology that in exhaustjet device, part is the most unnecessary
Saline or distilled water), the slowly required medicinal liquid of suction, can be directly to patient's internal injection (malleation in syringe when this kind operates
Gas flow should lack relatively, can just residual liquid in exhaustjet device), to the injection of the hazardous drugs such as radiopharmaceutical can with join
Set disposable venipuncture needle is used in conjunction with, and takes off the antiseepage protection cap 10 of supporting disposable venipuncture needle, after skin degerming
Directly puncture and fix, pumpback observation blood back can be carried out, after puncture to be confirmed success by connecting the pumpback piston of end 12
Injecting, promote piston 6 again to inject the preset barotropic gas of release behind bottom, now the gas in syringe should be just
The liquid in connection pipeline can be made to fully enter blood vessel.Appropriate preset liquid is had to be full of in the preset liquid chamber 7 of syringe internal
(piston is to syringe needle) space so that it is internal without gas, eliminates aerofluxus bubble operation during direct intravenous injection, particularly syringe
In when being radiopharmaceutical, simplify operation with machine when supporting the use；There is the gas of appropriate malleation in positive pressure gas body cavity 1 simultaneously
Body, when device piston 6 to be injected shifts syringe sleeve 3 bottommost onto, (medicinal liquid in syringe is discharged) is slightly pressurized down and pushes away,
Then gas disengages pin 8 and punctures sealing gasket 4, starts the release of barotropic gas in it, makes syringe and the liquid in venipuncture needle
Fully enter in the patient.
The above, be only preferred embodiment of the present utility model, is not that this utility model is made other form
Restriction, any those skilled in the art are changed possibly also with the technology contents of the disclosure above or are modified as equivalent
The Equivalent embodiments of change.But every without departing from technical solutions of the utility model content, real according to technology of the present utility model
Any simple modification, equivalent variations and the remodeling that confrontation above example is made, still falls within the guarantor of technical solutions of the utility model
Protect scope.
Claims (6)
1. a preset liquid residue-free injector, including syringe sleeve (3) and the anterior note inserted in syringe sleeve (3)
Emitter push rod (2), injector push-rod (2) front end is provided with piston (6), it is characterised in that: in the injection of described piston (6) front side
Being provided with preset liquid chamber (7) in device sleeve (3), the liquid outlet of syringe sleeve (3) is provided with end cover, and described syringe pushes away
Bar (2) inner side is provided with positive pressure gas body cavity (1), and front end is provided with gas release assembly；
Described gas release assembly includes that sealing gasket (4), push rod lid (5), gas disengage pin (8), and push rod lid (5) is by sealing gasket
(4) being fixed on positive pressure gas body cavity (1) front end of injector push-rod (2), gas disengages pin (8) through push rod lid (5) and described
Piston (6), piston (6) arch is set to gas and disengages pin (8) offer elastic force；
Described gas disengages outgassing hole through before and after pin (8) is provided with.
One the most according to claim 1 preset liquid residue-free injector, it is characterised in that: described syringe sleeve
(3) connect at liquid outlet and have syringe needle (9), syringe needle (9) is cased with antiseepage protection cap (10).
One the most according to claim 2 preset liquid residue-free injector, it is characterised in that: described syringe sleeve
(3) Tip protection lid (11) it is cased with at liquid outlet.
One the most according to claim 1 preset liquid residue-free injector, it is characterised in that: described syringe sleeve
(3) connecting once property venipuncture needle at liquid outlet, disposable venipuncture needle includes connecting end (12), connecting flexible pipe
(14), the syringe needle (16) of gripping tab (15) and disposable venipuncture needle.
One the most according to claim 4 preset liquid residue-free injector, it is characterised in that: described connection end (12)
Side be provided with pumpback piston (13).
One the most according to claim 1 preset liquid residue-free injector, it is characterised in that: described positive pressure gas body cavity
(1) oxygen or carbon dioxide it are filled with in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620209583.3U CN205698884U (en) | 2016-03-18 | 2016-03-18 | A kind of preset liquid residue-free injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620209583.3U CN205698884U (en) | 2016-03-18 | 2016-03-18 | A kind of preset liquid residue-free injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205698884U true CN205698884U (en) | 2016-11-23 |
Family
ID=57314200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620209583.3U Expired - Fee Related CN205698884U (en) | 2016-03-18 | 2016-03-18 | A kind of preset liquid residue-free injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205698884U (en) |
-
2016
- 2016-03-18 CN CN201620209583.3U patent/CN205698884U/en not_active Expired - Fee Related
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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: 20161123 Termination date: 20170318 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |