CN2899808Y - Micro quantitative injector - Google Patents
Micro quantitative injector Download PDFInfo
- Publication number
- CN2899808Y CN2899808Y CN 200520147419 CN200520147419U CN2899808Y CN 2899808 Y CN2899808 Y CN 2899808Y CN 200520147419 CN200520147419 CN 200520147419 CN 200520147419 U CN200520147419 U CN 200520147419U CN 2899808 Y CN2899808 Y CN 2899808Y
- Authority
- CN
- China
- Prior art keywords
- needle
- syringe
- needle tubing
- leading screw
- 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 - Lifetime
Links
- 238000007789 sealing Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract description 17
- 238000002347 injection Methods 0.000 abstract description 12
- 239000007924 injection Substances 0.000 abstract description 12
- 238000009835 boiling Methods 0.000 abstract description 4
- 230000033001 locomotion Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000000520 microinjection Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses an injector for injection with a certain amount and low boiling point liquid. The injector is composed of a needle head, a needle tube, a pushing piston, and etc; wherein, the needle head is connected with one end of the needle tube; and the pushing piston is arranged inside the chamber of the needle tube. The out wall of the needle tube is fixed with a fixed baffle; the pushing piston is connected with a movable baffle through a connecting rod; a screw rod is supported on the fixed baffle through the screw hole on the movable baffle. Through the rotation movements of the screw rod, the pushing piston moves inside the needle tube, thus the liquid injection function is realized. The utility model can realized injection with a certain amount of liquid with small quantity.
Description
Technical field
The utility model discloses a kind of syringe, specifically disclose a kind of calibrated shot device of injecting micro-low-boiling point liquid.
Background technology
Traditional syringe is made up of syringe needle, needle tubing, propelling piston.Simultaneously, for the injection volume of controlling liquid, be carved with the scale of liquid volume usually at the outer surface of needle tubing.But when utilizing this syringe manual injection micro liquid, injection volume is difficult to control.Especially in some specific occasions, during as making neutron bubble dosimeter, need calibrated shot trace low boiling sensitive liquid, can not meet the demands with conventional syringe.
Technical scheme
This utility model be exactly at conventional syringe can not the calibrated shot micro liquid defective, a kind of syringe that can accurately control injection volume is provided.
Syringe disclosed in the utility model contains parts such as syringe needle, needle tubing, propelling piston, and an end interface of syringe needle and needle tubing links, and propelling piston places syringe intracavity.Key technology is, fixes a fixed dam at the outer wall of needle tubing, and propelling piston links to each other with a sideboard by connecting rod, and a leading screw passes the screw of sideboard and is supported on the fixed dam.By rotatablely moving of control leading screw, promote sideboard front and back translation, and then the propelling piston that drive links to each other with sideboard moves realization liquid quantitative function of injection in needle tubing.
In order to guarantee the easy motion of propelling piston, a positioning baffle is fixed on the fixed dam by two pillars, leading screw one end passes positioning baffle, and the other end links with the motor that has driving control device.
When using syringe provided by the utility model, rotating threaded shaft, the moving among a small circle of realizing propelling piston can be realized the calibrated shot of 0.1～2 microlitre, thereby be realized the trace liquid quantitative injection, satisfies some requirement of special occasion.
Description of drawings
The syringe construction sketch that Fig. 1 present embodiment is provided.
Embodiment
Below in conjunction with accompanying drawing the technical solution of the utility model is further elaborated.
A kind of syringe comprises parts such as syringe needle 5, needle tubing 7, propelling piston 4, and syringe needle 5 links with the front end interface of needle tubing 7, and its needle point has 9～12 degree inclinations angle.Propelling piston 4 places the inner chamber of needle tubing 7.The front end of needle tubing 7 is provided with a high sealing valve 6, is carved with the scale of liquid volume at its outer surface.Fix a fixed dam 8 at the outer wall of needle tubing 7, positioning baffle 11 is fixed on the fixed dam 8 by two pillars 9.Propelling piston 3 links to each other with sideboard 10 by connecting rod 3.Leading screw 1 one ends pass positioning baffle 11 and sideboard 10 successively, are supported on the fixed dam 8, and the other end links with motor and driver part 12.In order to keep leading screw active stable, in the two sides of positioning baffle, leading screw is provided with pilot pin 2.
During use, rotate, control the front and back translational motion of sideboard 10, and then in needle tubing, move, realize the function of injection quantitative liquid by connecting rod 3 drive propelling pistons 4 by setting 12 motions of control sequence drive stepping motor and driving leading screw 1.
Whole apparatus structure is firm, moves steadily, can realize the small distance translation of propelling piston 4 as required, thereby realizes the micro liquid injection, is fit to the micro-injection at normal temperatures of some low-boiling point liquids.Particularly needle point 5 has 9～12 degree inclinations angle, so that draw, during the injection sensitive liquid, can not make dottle pin penetrating and cause sensitive liquid to leak.
The design novel according to this use, fixed dam 8, sideboard 10, positioning baffle 11 can be other version, but as long as the function that realizes is identical, all belong to the claimed scope of this utility model.
Claims (6)
1. syringe, contain syringe needle (5), needle tubing (7), propelling piston (4), wherein syringe needle (5) links with an end interface of needle tubing (7), propelling piston (4) places the inner chamber of needle tubing (7), it is characterized in that: fix a fixed dam (8) at the outer wall of needle tubing (7), propelling piston (4) links to each other with a sideboard (10) by connecting rod (3), and a leading screw (1) passes the screw of sideboard (10) and is supported on the fixed dam (8).
2. syringe according to claim 1 is characterized in that: the positioning baffle (11) that passes leading screw (1) is fixed on the fixed dam (8) by two pillars (9).
3. root syringe according to claim 2, it is characterized in that: the two sides in positioning baffle (11), leading screw are provided with pilot pin (2).
4. syringe according to claim 2 is characterized in that: the other end of leading screw (1) links with the motor that software control drives.
5. syringe according to claim 1 is characterized in that: needle point (5) has 9～12 degree inclinations angle.
6. syringe according to claim 1 is characterized in that: the front end of needle tubing (7) is provided with high sealing valve (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520147419 CN2899808Y (en) | 2005-12-30 | 2005-12-30 | Micro quantitative injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520147419 CN2899808Y (en) | 2005-12-30 | 2005-12-30 | Micro quantitative injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2899808Y true CN2899808Y (en) | 2007-05-16 |
Family
ID=38083973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520147419 Expired - Lifetime CN2899808Y (en) | 2005-12-30 | 2005-12-30 | Micro quantitative injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2899808Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105255716A (en) * | 2015-11-23 | 2016-01-20 | 广西职业技术学院 | Liquid dripping device |
| CN107966411A (en) * | 2017-12-27 | 2018-04-27 | 北京东方园林环境股份有限公司 | A kind of miniature automatic water quality monitoring quality control system and mark-on reclaims method |
| CN108211053A (en) * | 2017-12-18 | 2018-06-29 | 中南民族大学 | It is a kind of micro for medicine infusion device and micro for medicine infusion system |
| CN110215338A (en) * | 2019-07-15 | 2019-09-10 | 江苏省人民医院（南京医科大学第一附属医院） | Viscoelastic agent injection device for separating proliferation membrane in retinopathy operation |
-
2005
- 2005-12-30 CN CN 200520147419 patent/CN2899808Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105255716A (en) * | 2015-11-23 | 2016-01-20 | 广西职业技术学院 | Liquid dripping device |
| CN105255716B (en) * | 2015-11-23 | 2018-04-06 | 广西职业技术学院 | Fluid drip device |
| CN108211053A (en) * | 2017-12-18 | 2018-06-29 | 中南民族大学 | It is a kind of micro for medicine infusion device and micro for medicine infusion system |
| CN108211053B (en) * | 2017-12-18 | 2020-09-15 | 中南民族大学 | Trace supplies medicine infusion set and trace supplies medicine infusion system |
| CN107966411A (en) * | 2017-12-27 | 2018-04-27 | 北京东方园林环境股份有限公司 | A kind of miniature automatic water quality monitoring quality control system and mark-on reclaims method |
| CN110215338A (en) * | 2019-07-15 | 2019-09-10 | 江苏省人民医院（南京医科大学第一附属医院） | Viscoelastic agent injection device for separating proliferation membrane in retinopathy operation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070516 |
|
| EXPY | Termination of patent right or utility model |