CN203107888U - Injector - Google Patents
Injector Download PDFInfo
- Publication number
- CN203107888U CN203107888U CN 201320157484 CN201320157484U CN203107888U CN 203107888 U CN203107888 U CN 203107888U CN 201320157484 CN201320157484 CN 201320157484 CN 201320157484 U CN201320157484 U CN 201320157484U CN 203107888 U CN203107888 U CN 203107888U
- Authority
- CN
- China
- Prior art keywords
- piston
- shell
- push
- syringe
- pull bar
- 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
Images
Abstract
The utility model discloses an injector. The injector comprises a shell, a push-pull rod and a piston. The piston is arranged on the end portion of the push-pull rod, the piston and the push-pull rod are embedded in the shell in an integrated mode, a liquid outlet is arranged at the end portion of the shell, and a limiting portion is arranged on the inner wall of the shell. Compared with the prior art, the inner wall of the shell of the injector is provided with the limiting portion, and in the process of sucking agentia, the limiting portion can prevent the piston from disengaging the shell because of excessive move.
Description
Technical field
This utility model relates to a kind of syringe.
Background technology
In the medical treatment and nursing, use syringe to give patient injection medicament etc. usually.
In the Chinese patent literature, publication number is the utility model patent that CN201643209, name are called novel injector, discloses a kind of scheme and comprises push rod, syringe body, push rod cup, and conventional injector is simple in structure.
But in practice, through regular meeting the phenomenon that piston breaks away from shell takes place, cause drug waste.
The utility model content
The technical problem that this utility model solves provides a kind of syringe, and it can avoid piston to break away from shell.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is a kind of syringe, comprises shell, push-pull bar and piston, piston is installed in the push-pull bar end, the whole setting-in of piston and push-pull bar in the enclosure, outer casing end is provided with liquid outlet, on the described outer casing inner wall limiting section is set.
Described limiting section is projection.
Described piston is tapered, and shell fluid end shape and corresponding piston cooperate.
The cone angle of described taper is 100～120 °.
Described cone angle is rounding.
Compare with prior art, this utility model is installed limiting section on the wall in the enclosure, and when the suction medicament, limiting section can stop piston because of the excessively mobile shell that breaks away from.
Description of drawings
Fig. 1 this utility model structural representation.
Among the figure, 1. shell; 2. push-pull bar; 3. piston; 4. liquid outlet; 5. limiting section.
The specific embodiment
Embodiment:
As shown in Figure 1, in the present embodiment, syringe comprises shell 1, and shell 1 one ends are for installing the blind end of liquid outlet, and the other end is opening, and piston 3 is installed on the push-pull bar 2, and integral body is inlaid in the shell 1 by opening.
In order to prevent that piston 3 breaks away from shell, at shell 1 inwall limiting section 5 is installed, this limiting section 5 is projection in the present embodiment.Projection is installed in the opening inboard of shell 1.When the suction medicament, piston 3 moves to high spot and is obstructed, and can't normally move.
As further improvement, piston 3 is taper, the liquid outlet end profile of shell 1 and piston 3 correspondences, and the cone angle of piston 3 is 100 ° or 120 °.For better injection medicament, cone angle is carried out rounding.
Claims (5)
1. a syringe comprises shell, push-pull bar and piston, and piston is installed in the push-pull bar end, the whole setting-in of piston and push-pull bar in the enclosure, outer casing end is provided with liquid outlet, it is characterized in that: on the described outer casing inner wall limiting section is set.
2. according to the described syringe of claim 1, it is characterized in that: described limiting section is projection.
3. according to claim 1 or 2 described syringes, it is characterized in that: described piston is tapered, and shell fluid end shape and corresponding piston cooperate.
4. according to the described syringe of claim 3, it is characterized in that: the cone angle of described taper is 100～120 °.
5. according to the described syringe of claim 4, it is characterized in that: described cone angle is rounding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320157484 CN203107888U (en) | 2013-03-18 | 2013-03-18 | Injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320157484 CN203107888U (en) | 2013-03-18 | 2013-03-18 | Injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203107888U true CN203107888U (en) | 2013-08-07 |
Family
ID=48888271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320157484 Expired - Fee Related CN203107888U (en) | 2013-03-18 | 2013-03-18 | Injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203107888U (en) |
-
2013
- 2013-03-18 CN CN 201320157484 patent/CN203107888U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DK1937329T3 (en) | Fluid exchange catheter system | |
| RU2013143305A (en) | MEDICAL WASHING DEVICES | |
| CN205515814U (en) | Double -barrelled binary channels syringe and syringe needle | |
| CN203694250U (en) | Novel self-exhausting remaining needle | |
| CN203107888U (en) | Injector | |
| CN105797241A (en) | A multi-cavity syringe | |
| CN203694225U (en) | One-way valve | |
| CN203694227U (en) | Extension tube preventing counter current | |
| CN202437932U (en) | Catheter for intraperitoneal chemotherapy | |
| CN204319427U (en) | A kind of Multifunctional injection pen | |
| CN203208496U (en) | Anesthesia embolism for gynecology department | |
| CN204049923U (en) | Continuous syringes for animals | |
| CN204815184U (en) | Low -residual syringe | |
| CN204766832U (en) | Keep somewhere needle plug locking mechanism | |
| CN204219529U (en) | Safe self-breaking syringe | |
| CN203619918U (en) | Medicine feeder with strainer convenient to replace | |
| CN201337651Y (en) | Infusion bottle | |
| CN202497555U (en) | Cylindrical shell | |
| CN217286759U (en) | Easy-to-destroy core rod | |
| CN202892637U (en) | Infant anus pushing-injection machine | |
| CN204910345U (en) | Annotate high -efficient safe syringe of liquid | |
| CN201026332Y (en) | Non-return infusion tube | |
| CN203169665U (en) | Rectum obstruction dredging device | |
| CN202113462U (en) | Modified anesthesia needle | |
| CN208710785U (en) | A kind of anorectum department drug delivery device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 Termination date: 20140318 |