CN209060213U - A kind of dispensing injector with pin - Google Patents
A kind of dispensing injector with pin Download PDFInfo
- Publication number
- CN209060213U CN209060213U CN201820796279.2U CN201820796279U CN209060213U CN 209060213 U CN209060213 U CN 209060213U CN 201820796279 U CN201820796279 U CN 201820796279U CN 209060213 U CN209060213 U CN 209060213U
- Authority
- CN
- China
- Prior art keywords
- big
- piston
- small piston
- areola
- small
- 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
- 210000004883 areola Anatomy 0.000 claims abstract description 22
- 239000003814 drug Substances 0.000 abstract description 26
- 239000007924 injection Substances 0.000 abstract description 7
- 238000002347 injection Methods 0.000 abstract description 7
- 239000000243 solution Substances 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
A kind of dispensing injector with pin, the existing syringe of effective solution take out the problem of medicine and injection difficulty when making up a prescription；Including big syringe, cylinder seat and two-chamber infuse suction spindle head, it is equipped with big cavity and areola side by side in big syringe, one is connected to big cavity inside in two-chamber note suction spindle head, another is connected to areola inside, big piston is equipped in big cavity, big piston upper end is equipped with piston rod, small piston is equipped with inside small piston, the axial idler wheel in front and back is fixed with inside midfeather upper end between big piston and small piston, rope is fixed with inside big piston lateral wall upper end, the rope other end is successively horizontally through big internal piston, around idler wheel, it is fixed on inside the upper end of small piston lateral wall after being horizontally through small piston again, constitute piston rod drive big piston in big syringe to it is lower mobile when, the structure that small piston moves up in areola；This structure is simple and convenient to operate, is practical, and service efficiency is high.
Description
Technical field
The utility model relates to the field of medical instrument technology, more particularly to a kind of dispensing injector with pin.
Background technique
Currently, medical staff is when making up a prescription, usually with common disposable syringe by liquid medicine from the medicine bottle of sealing
The liquid medicine sucked in syringe is injected the operation in another sealed vial by middle sucking syringe.It, will be disposable when inhaling medicine
The Jiao Gai that syringe needle passes through in medicine bottle bottleneck is aspirated, and medical fluid, which is sucked out in rear bottle, generates negative pressure, so that extraction difficult,
Operation is laborious；Jiao Gai when injection, and by syringe needle across bottleneck is injected, and the drug of injection can occupy space in bottle, make
The pressure in the bottle increases, and injects resistance and also increases therewith.
Utility model content
For above situation, for the defect for overcoming the prior art, the purpose of the utility model is just to provide one kind and makes up a prescription note
Emitter, the existing syringe of effective solution take out the problem of medicine and injection difficulty when making up a prescription.
Its technical solution solved is that the utility model includes big syringe, cylinder seat and two-chamber note suction spindle head, in big syringe
Side by side be equipped with big cavity and areola, two-chamber note suction spindle head in one be connected to big cavity inside, another with inside areola
Connection is equipped with big piston in big cavity, and big piston upper end is equipped with piston rod, is equipped with small piston inside small piston, big piston and
The axial idler wheel in front and back is fixed with inside midfeather upper end between small piston, big piston lateral wall is fixed with rope inside upper end
Son, the rope other end be successively horizontally through big internal piston, around idler wheel, be horizontally through small piston again after be fixed on outside small piston
Inside the upper end of side wall, constitute piston rod drive big piston in big syringe to it is lower mobile when, small piston in areola upwards
Mobile structure.
Compared with prior art, the utility model has the beneficial effects that infusing suction spindle head using two-chamber and being set in big syringe
Rope is set, the lifting of big piston drives the down or up of small piston through rope, reduces the negative pressure in medicine bottle to big piston liter
Resistance when drop, this structure are simple and convenient to operate, are practical, and service efficiency is high.
Detailed description of the invention
Fig. 1 is the cutting main view of the utility model.
Fig. 2 is the cross-sectional view of A-A in the utility model Fig. 1.
Fig. 3 is the enlarged drawing of B in the utility model Fig. 1.
Fig. 4 is the enlarged drawing of C in the utility model Fig. 1.
Specific embodiment
Specific embodiment of the present utility model is described in further detail below in conjunction with attached drawing.
It is provided by Fig. 1 to Fig. 4, the utility model includes big syringe 1, cylinder seat 2 and two-chamber note suction spindle head 3, in big syringe 1
Be equipped with big cavity 4 and areola 5 side by side, in two-chamber note suction spindle head 3 one be connected to inside big cavity 4, another and areola 5
Inside connection, big cavity 4 is interior to be equipped with big piston 6, and big 6 upper end of piston is equipped with piston rod 7, is equipped with small piston inside small piston 8
8, the axial idler wheel 9 in front and back, big 6 lateral wall upper end of piston are fixed with inside the midfeather upper end between big piston 6 and small piston 8
Inside is fixed with rope 10,10 other end of rope is successively horizontally through inside big piston 6, around idler wheel 9, be horizontally through small work again
It is fixed on inside the upper end of 8 lateral wall of small piston after plug 8, constitutes piston rod 7 and big piston 6 is driven to move down in big syringe 1
When, structure that small piston 8 moves up in areola 5.
It is opened on 8 lateral wall of midfeather and small piston between 6 lateral wall of big piston, big piston 6 and small piston 8
Equipped with vertical through holes 11, each idler wheel 9 is located at the upper end of corresponding vertical through holes 11.
Cross through hole 12,12 inside left end of cross through hole and right end are offered inside the big piston 6 and small piston 8
It is rotatably connected to the axial roller 13 in front and back respectively, rope 10 is located at the lower section of left end roller 13 and is located at the upper of right end roller 13
Side.
4 lower end of big cavity is equipped with arc concave bottom 14, and big 6 lower end of piston is equipped with the arc cooperated with arc concave bottom 14
Protrusion 15,15 lower end of arc convex are fixed with cylinder 16, and cylinder 16 can be inserted into the hole that big cavity 4 is connected to two-chamber note suction spindle head 3
It is interior.
The two-chamber infuses the needle that the needle length being connected in suction spindle head 3 with big cavity 4 is greater than with is connected to inside areola 5
Head length.
When the utility model is used, the arc convex 15 being arranged on big piston 6 connects with the arc concave bottom 14 in big cavity 4
Cylinder 16 in touching, arc convex 15 is inserted into the initial position in the hole that big cavity 4 is connected to two-chamber note suction spindle head 3.
Two-chamber note suction spindle head 3 is inserted into medicine bottle when needing to inhale medicine outward out of medicine bottle, makes the needle being connected to big cavity 4
Head is located in medical fluid, so that the syringe needle being connected to areola 5 is always positioned at the top of medical fluid liquid level, pulls up piston rod 7, piston
Bar 7 drives big piston 6 to move up in big cavity 4, the rope in big 6 side wall of piston and big piston 6 and 8 midfeather of small piston
10 become slack；
During medical fluid is inhaled into big cavity 4, generated since the medical fluid in medicine bottle gradually tails off, in medicine bottle certain
Negative pressure, at this point, the small piston 8 in areola 5 pulls rope 10 in areola 5 to moving down in medicine bottle under the action of negative pressure
It is dynamic, so that the air in areola 5 enters in medicine bottle, reduces piston rod 7 and drive big piston 6 in big cavity 4 to moving up
Resistance when dynamic.
When needing the liquid medicine injection into medicine bottle, two-chamber note suction spindle head 3 is inserted into medicine bottle, makes to be connected to areola 5
Syringe needle is always positioned at the top of medical fluid liquid level, pushes down on piston rod 7, make piston rod 7 drive big piston 6 in big cavity 4 to
Lower movement enters liquid medicine injection in medicine bottle；Since the total length of rope 10 is definite value, during big piston 6 moves down, greatly
10 length of rope between 6 side wall of piston and big piston 6 and small piston 8 in midfeather, in corresponding 8 side wall of small piston
10 length of rope shortens, i.e., during big piston 6 moves down in big cavity 4, small piston 8 under the action of rope 10
It is moved up in areola 5；
During liquid medicine injection is entered in medicine bottle, vial volume constantly expands, as small piston 8 is in areola 5
Interior rising, the gas in medicine bottle enter in areola 5, reduce piston rod 7 and drive big piston 6 in big cavity 4 to moving down
Resistance when dynamic.
Setting is equipped with arc concave bottom 14 in big 4 lower end of cavity, and big 6 lower end of piston is equipped with the arc cooperated with arc concave bottom 14
Protrusion 15,15 lower end of arc convex are fixed with cylinder 16, and cylinder 16 can be inserted into the hole that big cavity 4 is connected to two-chamber note suction spindle head 3
It is interior, in order that reducing liquor residue when making up a prescription in syringe, malpractice caused by avoiding because of liquor residue.
Rope 10 is equipped in big syringe 1, big piston 6 and small piston 8, in order that rising in big cavity 4 in big piston 6
Or when decline, rope 10 can drive small piston 8 corresponding down or up, ensure that and inhale medicine and infuse steady when pushing away medical fluid
Property, and reduce the resistance when lifting of big piston 6.
Compared with prior art, the utility model has the beneficial effects that infusing suction spindle head using two-chamber and being set in big syringe
Rope is set, the lifting of big piston drives the down or up of small piston through rope, reduces the negative pressure in medicine bottle to big piston liter
Resistance when drop, this structure are simple and convenient to operate, are practical, and service efficiency is high.
Claims (5)
1. a kind of dispensing injector with pin, including big syringe (1), cylinder seat (2) and two-chamber note suction spindle head (3), which is characterized in that large needle
Big cavity (4) and areola (5) are equipped in cylinder (1) side by side, one is connected to big cavity (4) inside in two-chamber note suction spindle head (3),
Another is connected to areola (5) inside, is equipped with big piston (6) in big cavity (4), big piston (6) upper end is equipped with piston rod
(7), small piston (8) are equipped with inside small piston (8), are fixed with inside the midfeather upper end between big piston (6) and small piston (8)
The idler wheel (9) of front and back axial direction is fixed with rope (10) inside big piston (6) lateral wall upper end, and rope (10) other end is successively horizontal
To pass through big piston (6) it is internal, around idler wheel (9), be horizontally through be fixed on small piston (8) lateral wall after small piston (8) again
Inside upper end, when composition piston rod (7) drives big piston (6) to move down in big syringe (1), small piston (8) is in areola
(5) structure moved up in.
2. a kind of dispensing injector with pin according to claim 1, which is characterized in that described big piston (6) lateral wall, big living
Vertical through holes (11), each idler wheel are offered on midfeather and small piston (8) lateral wall between plug (6) and small piston (8)
(9) it is located at the upper end of corresponding vertical through holes (11).
3. a kind of dispensing injector with pin according to claim 1, which is characterized in that the big piston (6) and small piston (8)
Inside offers cross through hole (12), and the internal left end of cross through hole (12) and right end are rotatably connected to the axial roller in front and back respectively
It takes turns (13), rope (10) is located at the lower section of left end roller (13) and is located at the top of right end roller (13).
4. a kind of dispensing injector with pin according to claim 1, which is characterized in that big cavity (4) lower end is equipped with arc
Shape concave bottom (14), big piston (6) lower end are equipped with the arc convex (15) cooperated with arc concave bottom (14), arc convex (15) lower end
It is fixed with cylinder (16), cylinder (16) can be inserted into the hole that big cavity (4) is connected to two-chamber note suction spindle head (3).
5. a kind of dispensing injector with pin according to claim 1, which is characterized in that in described two-chamber note suction spindle head (3) with
The needle length of big cavity (4) connection is greater than and the internal needle length being connected to of areola (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820796279.2U CN209060213U (en) | 2018-05-25 | 2018-05-25 | A kind of dispensing injector with pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820796279.2U CN209060213U (en) | 2018-05-25 | 2018-05-25 | A kind of dispensing injector with pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209060213U true CN209060213U (en) | 2019-07-05 |
Family
ID=67088594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820796279.2U Expired - Fee Related CN209060213U (en) | 2018-05-25 | 2018-05-25 | A kind of dispensing injector with pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209060213U (en) |
-
2018
- 2018-05-25 CN CN201820796279.2U patent/CN209060213U/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: 20190705 |