CN209490264U - A kind of dispensing injector with pin - Google Patents
A kind of dispensing injector with pin Download PDFInfo
- Publication number
- CN209490264U CN209490264U CN201821013937.2U CN201821013937U CN209490264U CN 209490264 U CN209490264 U CN 209490264U CN 201821013937 U CN201821013937 U CN 201821013937U CN 209490264 U CN209490264 U CN 209490264U
- Authority
- CN
- China
- Prior art keywords
- syringe
- insert port
- dispensing injector
- needle
- pin
- 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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Abstract
The utility model discloses a kind of dispensing injector with pin, the dispensing injector with pin includes syringe needle, syringe and plunger, the syringe needle includes pintle and the needle point for being mounted on pintle lower end, the syringe front end is provided with needle holder, the syringe and needle point are coupled by pintle, needle holder, the plunger moves in syringe, the plunger includes piston, push rod and push handle, the push rod outer wall is provided with several elastic bumps, the back end of syringe tube wall is provided with several holes, and the elastic bumps and hole cooperation limit push rod and move in syringe.The utility model devises a kind of dispensing injector with pin, structure is simple, it is convenient to operate, it can avoid occurring the case where finger pollution medicament during making up a prescription, the case where this dispensing injector with pin can be used for multiple times when preparing same drug, avoid the occurrence of cross-infection simultaneously, reduces use cost, working efficiency is improved, white pollution can also be mitigated.
Description
Technical field
The utility model relates to medical instruments field, specifically a kind of dispensing injector with pin.
Background technique
In medical procedure, we inject in patient body after usually needing that a variety of drugs are mixed, prepared, it is general I
The preparation of drug can be carried out using dispensing injector with pin, and dispensing injector with pin currently produced on the market can only use one mostly
It is secondary to discard, new syringe is needed to change, not only higher cost, greatly increases white pollution, also drop dispensing efficiency significantly
It is low.
Dispensing injector with pin of today needs to carry out in an aseptic environment, this just needs medical worker that can carry out sterile work
Make, if syringe is used for multiple times, in actual operation, medical worker is often in the state of being busy with one's work, and often will appear hand
The case where finger is contacted with push rod, and push rod enters pollution drug after syringe, may cause cross-infection.
For above situation, it would be desirable to design when a kind of single drug makes up a prescription can Reusability syringe, prevent to hand over
Fork infection, not only reduces use cost, reduces white pollution, moreover it is possible to improve dispensing efficiency, this be we one urgently to be resolved
Problem.
Utility model content
The purpose of this utility model is to provide a kind of dispensing injector with pin, to solve the problems of the prior art.
To achieve the above object, the utility model provides the following technical solutions: a kind of dispensing injector with pin, the injection of making up a prescription
Device includes syringe needle, syringe and plunger, and the needle point is mounted on syringe front end, and the plunger moves in syringe, the plunger packet
Piston, push rod and push handle are included, described push rod one end is fixed with piston, and the other end is fixed with push handle, and the push rod outer wall is provided with
Several elastic bumps, the back end of syringe tube wall are provided with several holes, and the elastic bumps and hole cooperation limit push rod in syringe
Interior movement.
The utility model devises a kind of dispensing injector with pin, and including syringe needle, syringe and plunger, back end of syringe tube wall is set
Several holes are set, the push rod outer wall of plunger is provided with several elastic bumps, and elastic bumps are consistent with the quantity in hole, and they can be with
It cooperates, when plunger pulls back certain length, elastic bumps meeting and Kong Peihe fix push rod, and being allowed to can not
It continues to move to.
Further, when the elastic bumps are with hole clamping, the liquid cavity length a in syringe is less than the length b of cavity.
When in the utility model to elastic bumps and hole clamping, the length of liquid cavity length and cavity in syringe has one
Fixed requirement, liquid cavity length is smaller than the length of cavity, can guarantee cause to intersect when plunger moves backward in this way to feel
Dye.
Further, the syringe needle includes pintle and the needle point for being mounted on pintle lower end, and the syringe front end is provided with needle
Headstock, the syringe and needle point are coupled by pintle, needle holder, and the needle point includes lumen, limited block and blocks water ventilative
Film, the limited block cover on lumen, and the lumen passes through limited block and is mounted on pintle lower end；The lumen includes the first company
Siphunculus and the second communicating pipe, the ventilated membrane that blocks water were mounted in the second communicating pipe, first communicating pipe lower end be provided with
One insert port, second communicating pipe lower end be provided with the second insert port.
Further, first communicating pipe and the second communicating pipe are each passed through limited block and are connected to pintle.
Further, first communicating pipe passes through limited block and is connected to pintle, and second communicating pipe passes through limited block
It is contacted with air.
The utility model devises the needle point of two kinds of different structures, while needle point is provided with limited block, when needle point is inserted into
When flask for medicinal preparations, limited block can limit needle point and fix, and will not cause to pollute, while the needle point of both different structures is respectively provided with
Block water ventilated membrane, when liquid by the second insert port enter the second communicating pipe when, block water ventilated membrane can liquid barrier enter simultaneously
Air therein is discharged, it is ensured that pressure balance, liquid can smoothly enter into syringe.
Further, first insert port and the second insert port are disposed as inclined hole, first insert port and second
The inclined hole section inclined direction of insert port is consistent.
Further, first insert port and the second insert port are disposed as inclined hole, first insert port and second
The inclined hole section inclined direction of insert port is opposite.
Further, the piston bottom end is provided with piston hole, and the push rod includes interior bar and outer bar, described interior bar one end
It is fixedly mounted in piston hole, the other end is fixed in push handle；For the outer rod set on interior bar, described outer bar one end is fixed on work
Beyond the Great Wall, the other end is fixed in push handle.
The push rod of the utility model includes interior bar and outer bar, and outer rod set can be fastenedly connected piston on interior bar, is protected
Card dispensing operation can be normally carried out.
Further, the back end of syringe is provided with hand-held part.
Hand-held part is provided in the utility model, the hand-holdable dispensing injector with pin of medical staff carries out dispensing operation, facilitates reality
With.
Compared with prior art, the utility model has the beneficial effects that the utility model includes syringe needle, syringe and plunger etc.
Component, when we need to extract the liquid in flask for medicinal preparations, needle point is inserted into flask for medicinal preparations, while being limited using limited block, plunger
It is moved backward with manpower, guarantees the pressure balance in syringe using ventilated membrane is blocked water, while completely cut off into the second communicating pipe
Medicament, so as to the pressure in syringe can drive liquid by the first insert port enter the first communicating pipe, when liquid reaches one
When devise a stratagem amount, elastic bumps cooperate with hole fixes push rod, extracts medicament operation and completes；When we need to prepare in syringe
When medicament is squeezed into bottle, plunger pushes forward with manpower, and elastic bumps are separated with hole, due to the presence for the ventilated membrane that blocks water, medicament
It cannot be introduced into for the second communicating pipe, can only be discharged from the first communicating pipe, injection operation is completed.
The utility model devises a kind of dispensing injector with pin, and structure is simple, and it is convenient to operate, by limiting elastic bumps and hole
The length of liquid cavity length and cavity when clamping in syringe ensures that finger will not pollute medicament during making up a prescription with this, together
When this dispensing injector with pin the case where being used for multiple times when preparing same drug, avoid the occurrence of cross-infection, reduce
Use cost can also mitigate white pollution.
Detailed description of the invention
In order to make the content of the utility model be easier to be clearly understood, below according to specific embodiment and combine attached
Figure, is described in further detail the utility model.
Fig. 1 is a kind of overall structure diagram of dispensing injector with pin of the utility model；
Fig. 2 is the plunger and syringe usage state diagram of a kind of dispensing injector with pin of the utility model；
Fig. 3 is a kind of usage state diagram of dispensing injector with pin of the utility model；
Fig. 4 is that a kind of syringe cylinder structure of dispensing injector with pin of the utility model is illustrated；
Fig. 5 is a kind of switch plunger structure diagram of dispensing injector with pin of the utility model；
Fig. 6 is a kind of the first needle point structure schematic diagram of dispensing injector with pin of the utility model；
Fig. 7 is a kind of second of needle point structure schematic diagram of dispensing injector with pin of the utility model；
Fig. 8 is a kind of second of needle point structure exploded view of dispensing injector with pin of the utility model；
Fig. 9 is the plunger and syringe unused state figure of a kind of dispensing injector with pin of the utility model.
In figure: 1- syringe needle, 11- pintle, 12- needle point, the first communicating pipe of 121-, 122- limited block, the first insert port of 123-,
Block water ventilated membrane, 2- syringe, 21- needle holder, the hole 22-, 23- of the second insert port of 124-, the second communicating pipe of 125-, 126- is hand-held
Portion, 3- plunger, 31- piston, 32- piston hole, 33- push rod, 331- outer bar, 332- interior bar, 34- elastic bumps, 35- push handle, 4-
Fluid chamber, 5- cavity.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Please refer to Fig. 1-9, in the utility model embodiment, a kind of dispensing injector with pin, the dispensing injector with pin includes syringe needle
1, syringe 2 and plunger 3, the needle point 12 are mounted on 2 front end of syringe, and the plunger 3 moves in syringe 2, and the plunger 3 includes
Piston 31, push rod 33 and push handle 35, described 33 one end of push rod and piston 31 are fixed, and the other end and push handle 35 are fixed, the push rod
33 outer walls are provided with several elastic bumps 34, and the 2 rear end tube wall of syringe is provided with several holes 22, the elastic bumps 34 and hole
22 cooperations limit push rod 33 and move in syringe 2.
The utility model devises a kind of dispensing injector with pin, including syringe needle 1, syringe 2 and plunger 3,2 rear end pipe of syringe
Wall is provided with several holes 22, and 33 outer wall of push rod of plunger 3 is provided with several elastic bumps 34, the quantity of elastic bumps 34 and hole 22
Unanimously, and they can cooperate, and when plunger 3 pulls back certain length, elastic bumps 34 can cooperate with hole 22, will
Push rod 33 is fixed, is allowed to continue to move to.
When the elastic bumps 34 are with 22 clamping of hole, the 4 length a of fluid chamber in syringe 2 is less than the length b of cavity 5.
When in the utility model to elastic bumps 34 and 22 clamping of hole, the length of fluid chamber 4 length and cavity 5 in syringe 2
Degree has certain requirement, and 4 length of fluid chamber is smaller than the length of cavity 5, and can guarantee in this way will not when plunger 3 moves backward
Cause cross-infection.
The syringe needle 1 includes pintle 11 and the needle point 12 for being mounted on 11 lower end of pintle, and 2 front end of syringe is provided with syringe needle
Seat 21, the syringe 2 and needle point 12 are coupled by pintle 11, needle holder 21, and the needle point 12 includes lumen, limited block
It 122 and blocks water ventilated membrane 126, on lumen, the lumen passes through limited block 122 and is mounted on pintle 122 sets of the limited block
11 lower ends；The lumen includes the first communicating pipe 121 and the second communicating pipe 125, and the ventilated membrane 126 that blocks water is mounted on the second company
In siphunculus 125,121 lower end of the first communicating pipe is provided with the first insert port 123,125 lower end of the second communicating pipe setting
There is the second insert port 124.
First communicating pipe 121 and the second communicating pipe 125 are each passed through limited block 122 and are connected to pintle 11.
First communicating pipe 121 passes through limited block 122 and is connected to pintle 11, and second communicating pipe 125 passes through limit
Block 122 is contacted with air.
The utility model devises the needle point 12 of two kinds of different structures, while needle point 12 is provided with limited block 122, works as needle
When point 12 is inserted into flask for medicinal preparations, limited block 122 can limit needle point 12 and fix, and will not cause to pollute, while both difference knots
The needle point 12 of structure is provided with the ventilated membrane 126 that blocks water, when liquid enters the second communicating pipe 125 by the second insert port 124, resistance
Water ventilated membrane 126 can liquid barrier enter and air therein is discharged, it is ensured that pressure balance, liquid can smoothly enter into syringe 2.
First insert port 123 and the second insert port 124 are disposed as inclined hole, first insert port 123 and second
The inclined hole section inclined direction of insert port 124 is consistent.
First insert port 123 and the second insert port 124 are disposed as inclined hole, first insert port 123 and second
The inclined hole section inclined direction of insert port 124 is opposite.
31 bottom end of piston is provided with piston hole 32, and the push rod 33 includes interior bar 332 and outer bar 331, the interior bar
332 one end are fixedly mounted in piston hole 32, and the other end is fixed in push handle 35；331 sets of the outer bar is in interior bar 322, institute
It states 331 one end of outer bar to be fixed on piston 31, the other end is fixed in push handle 35.
The push rod 33 of the utility model include interior bar 332 and outer bar 331,331 sets of outer bar in interior bar 332, can be to piston
31 are fastenedly connected, and guarantee that dispensing operation can be normally carried out.
2 rear end of syringe is provided with hand-held part 23.
Hand-held part 23 is provided in the utility model, the hand-holdable dispensing injector with pin of medical staff carries out dispensing operation, convenient
It is practical.
The utility model includes the components such as syringe needle 1, syringe 2 and plunger 3, when we need to extract the liquid in flask for medicinal preparations
When, needle point 12 is inserted into flask for medicinal preparations, while being limited using limited block 122, and plunger 3 is moved backward with manpower, ventilative using blocking water
Film 126 guarantees the pressure balance in syringe 2, while completely cutting off into the medicament in the second communicating pipe 125, so as in syringe 2
Pressure can drive liquid to enter for the first communicating pipe 121 by the first insert port 123, when liquid reaches certain metering, elasticity
Protrusion 34 cooperates with hole 22 fixes push rod 33, extracts medicament operation and completes；When we need to beat the medicament prepared in syringe 2
When entering in bottle, plunger 3 pushes forward with manpower, and elastic bumps 34 are separated with hole 22, due to the presence for the ventilated membrane 126 that blocks water, medicine
Agent cannot be introduced into for the second communicating pipe 125, can only be discharged from the first communicating pipe 121, and injection operation is completed.
The utility model devises a kind of dispensing injector with pin, and structure is simple, operate it is convenient, by limit elastic bumps 34 with
The length of fluid chamber 4 length and cavity 5 when 22 clamping of hole in syringe 2 ensures that finger will not pollute during making up a prescription with this
Medicament, while the case where this dispensing injector with pin can be used for multiple times when preparing same drug, avoid the occurrence of cross-infection,
Use cost is reduced, white pollution can also be mitigated.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
Claims (9)
1. a kind of dispensing injector with pin, it is characterised in that: the dispensing injector with pin includes syringe needle (1), syringe (2) and plunger (3), needle
Sharp (12) are mounted on syringe (2) front end, and the plunger (3) is moved in syringe (2), and the plunger (3) includes piston (31), pushes away
Bar (33) and push handle (35), described push rod (33) one end and piston (31) are fixed, and the other end and push handle (35) are fixed, the push rod
(33) outer wall is provided with several elastic bumps (34), and syringe (2) rear end tube wall is provided with several holes (22), and the elasticity is convex
It plays (34) and hole (22) cooperation and limits push rod (33) movement in syringe (2).
2. a kind of dispensing injector with pin according to claim 1, it is characterised in that: the elastic bumps (34) and hole (22) are blocked
When tight, fluid chamber (4) the length a in syringe (2) is less than the length b of cavity (5).
3. a kind of dispensing injector with pin according to claim 2, it is characterised in that: the syringe needle (1) include pintle (11) and
It is mounted on the needle point (12) of pintle (11) lower end, syringe (2) front end is provided with needle holder (21), the syringe (2) and needle
Sharp (12) are coupled by pintle (11), needle holder (21), and the needle point (12) includes lumen, limited block (122) and blocks water
Ventilated membrane (126), the limited block (122) cover on lumen, and the lumen passes through limited block (122) and is mounted on pintle (11)
Lower end；The lumen includes the first communicating pipe (121) and the second communicating pipe (125), and the ventilated membrane that blocks water (126) is mounted on the
In two communicating pipes (125), the first communicating pipe (121) lower end is provided with the first insert port (123), second communicating pipe
(125) lower end is provided with the second insert port (124).
4. a kind of dispensing injector with pin according to claim 3, it is characterised in that: first communicating pipe (121) and second
Communicating pipe (125) is each passed through limited block (122) and is connected to pintle (11).
5. a kind of dispensing injector with pin according to claim 3, it is characterised in that: first communicating pipe (121) passes through limit
Position block (122) is connected to pintle (11), and second communicating pipe (125) passes through limited block (122) and contacts with air.
6. a kind of dispensing injector with pin according to any one of claim 3 to 5, it is characterised in that: first insert port
(123) and the second insert port (124) is disposed as inclined hole, the inclined hole of first insert port (123) and the second insert port (124)
Section inclined direction is consistent.
7. a kind of dispensing injector with pin according to any one of claim 3 to 5, it is characterised in that: first insert port
(123) and the second insert port (124) is disposed as inclined hole, the inclined hole of first insert port (123) and the second insert port (124)
Section inclined direction is opposite.
8. a kind of dispensing injector with pin according to claim 7, it is characterised in that: piston (31) bottom end is provided with piston
Hole (32), the push rod (33) include interior bar (332) and outer bar (331), and described interior bar (332) one end is fixedly mounted on piston hole
(32) in, the other end is fixed on push handle (35)；The outer bar (331) covers on interior bar (332), described outer bar (331) one end
It is fixed on piston (31), the other end is fixed on push handle (35).
9. a kind of dispensing injector with pin according to claim 8, it is characterised in that: syringe (2) rear end is provided with hand-held
Portion (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821013937.2U CN209490264U (en) | 2018-06-28 | 2018-06-28 | A kind of dispensing injector with pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821013937.2U CN209490264U (en) | 2018-06-28 | 2018-06-28 | A kind of dispensing injector with pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209490264U true CN209490264U (en) | 2019-10-15 |
Family
ID=68150374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821013937.2U Expired - Fee Related CN209490264U (en) | 2018-06-28 | 2018-06-28 | A kind of dispensing injector with pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209490264U (en) |
-
2018
- 2018-06-28 CN CN201821013937.2U patent/CN209490264U/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: 20191015 Termination date: 20200628 |