CN205434587U - Medicine administered by injection syringe - Google Patents
Medicine administered by injection syringe Download PDFInfo
- Publication number
- CN205434587U CN205434587U CN201521123670.9U CN201521123670U CN205434587U CN 205434587 U CN205434587 U CN 205434587U CN 201521123670 U CN201521123670 U CN 201521123670U CN 205434587 U CN205434587 U CN 205434587U
- Authority
- CN
- China
- Prior art keywords
- piston
- auxiliary piston
- syringe
- core bar
- push rod
- 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
The utility model discloses a medicine administered by injection syringe, including the cylinder and with cylinder sliding fit's piston, install the syringe needle on the cylinder, the piston includes core bar and piston head, still including setting up vice piston mechanism in the piston, vice piston mechanism is in including vice piston and setting central through hole in the piston, the central through hole is including being located the piston head belongs to the piston hole section of side and is located the push rod hole section of core bar place side, vice piston include with piston hole section sliding fit and with the vice piston head of syringe needle complex promotes with being used for the gliding vice piston push rod of vice piston head, vice piston push rod's one end is stretched out outside the core bar. The utility model discloses a medicine administered by injection syringe can not remain the injection medicament in can ensureing the syringe needle.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, concrete for a kind of medicine administered by injection syringe.
Background technology
Syringe is a kind of common medical instruments, and the appearance of syringe is the most epoch-making revolution in medical instruments field, is called injection by this process of syringe needle extraction or injection gas or liquid.Syringe is made up of the foraminate syringe of front end band and the piston core bar that matches, be used for by a small amount of liquid or its be injected into region that other method cannot be close or local extract out from those, core bar is extracted when, liquid or gas suck from syringe front end aperture, liquid or gas are extruded when core bar pushes.
Although existing syringe can meet use requirement to a certain extent, but in entry needle, inevitably remain injection medicament, for some low doses and valuable drug, the injection medicament of residual not only results in waste, and final dosage can be affected, and then affect therapeutic effect.
Summary of the invention
In view of this, the purpose of this utility model is to provide a kind of medicine administered by injection syringe, it can be ensured that will not remain injection medicament in entry needle.
For reaching above-mentioned purpose, this utility model following technical scheme of offer:
A kind of medicine administered by injection syringe, including syringe and the piston that is slidably matched with described syringe, on described syringe, entry needle is installed, described piston includes core bar and piston head, also include the auxiliary piston mechanism being arranged in described piston, described auxiliary piston mechanism includes auxiliary piston and the central through hole being arranged in described piston, described central through hole includes being positioned at the piston hole section of side, described piston head place and being positioned at the push-rod hole section of side, described core bar place, described auxiliary piston includes the auxiliary piston head being slidably matched with described piston hole section and coordinating with described entry needle and for the auxiliary piston push rod promoting described auxiliary piston head to slide, one end of described auxiliary piston push rod is stretched out outside described core bar.
Further, described auxiliary piston head use soft rubber make and with described piston hole section close fit.
Further, the external diameter of described auxiliary piston push rod is more than the external diameter of described auxiliary piston head.
Further, also include insurance institution, described insurance institution includes being arranged on described core bar away from the breaking pin hole of described piston head side and the insurance cotter way that is correspondingly arranged on described auxiliary piston push rod, is provided with and the safety plug of described safety plug slot fit in described breaking pin hole.
The beneficial effects of the utility model are:
Medicine administered by injection syringe of the present utility model, by arranging auxiliary piston in piston, and be set to coordinate with entry needle by auxiliary piston head, so, when injection, being expelled in the patient first with piston by the injection medicament in syringe, then the injection medicament remained in entry needle is expelled in the patient by recycling auxiliary piston, it is ensured that noresidue in syringe.
Accompanying drawing explanation
In order to make the purpose of this utility model, technical scheme and beneficial effect clearer, this utility model provides drawings described below to illustrate:
Fig. 1 is the structural representation of this utility model medicine administered by injection syringe embodiment；
Fig. 2 is the A detail drawing of Fig. 1.
Detailed description of the invention
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings, so that those skilled in the art can be better understood from this utility model and can be practiced, but illustrated embodiment is not as to restriction of the present utility model.
As it is shown in figure 1, be the structural representation of this utility model medicine administered by injection syringe embodiment.The medicine administered by injection syringe of the present embodiment, including syringe 1 and the piston that is slidably matched with syringe 1, syringe 1 is provided with entry needle 2, and piston includes core bar 3 and piston head 4.The medicine administered by injection syringe of the present embodiment also includes the auxiliary piston mechanism being arranged in piston, auxiliary piston mechanism includes auxiliary piston and the central through hole 5 being arranged in piston, central through hole 5 includes being positioned at the piston hole section of side, piston head place and being positioned at the push-rod hole section of side, core bar place, auxiliary piston includes the auxiliary piston head 6 being slidably matched with piston hole section and coordinating with entry needle 2 and for the auxiliary piston push rod 7 promoting auxiliary piston head 6 to slide, and one end of auxiliary piston push rod 7 is stretched out outside core bar 3.
Further, auxiliary piston head 6 use soft rubber to make and with piston hole section close fit, prevent injection medicament from entering in central through hole 5.The external diameter of the auxiliary piston push rod 7 of the present embodiment is more than the external diameter of auxiliary piston head 6, and accordingly, the internal diameter of piston hole section, less than the internal diameter of push-rod hole section, can realize the position-limiting action to auxiliary piston, prevent auxiliary piston head 6 from stretching out in entry needle 2.
Further, the medicine administered by injection syringe of the present embodiment also includes insurance institution, insurance institution includes being arranged on core bar 3 away from the breaking pin hole of piston head 4 side and the insurance cotter way 8 that is correspondingly arranged on auxiliary piston push rod 7, it is provided with in breaking pin hole and insures the safety plug 9 that cotter way 8 coordinates, by arranging insurance institution, it is possible to avoid auxiliary piston to slide in piston；During use, after can being expelled in the patient by the injection medicament in syringe 1 first with piston, then pull out safety plug 9, promote auxiliary piston to move to entry needle 2, the injection medicament remained in entry needle 2 is expelled in the patient.
The medicine administered by injection syringe of the present embodiment, by arranging auxiliary piston in piston, and be set to coordinate with entry needle by auxiliary piston head, so, when injection, being expelled in the patient first with piston by the injection medicament in syringe, then the injection medicament remained in entry needle is expelled in the patient by recycling auxiliary piston, it is ensured that noresidue in syringe.
Embodiment described above is only the preferred embodiment lifted by absolutely proving this utility model, and protection domain of the present utility model is not limited to this.The equivalent that those skilled in the art are made on the basis of this utility model substitutes or conversion, all within protection domain of the present utility model.Protection domain of the present utility model is as the criterion with claims.
Claims (4)
1. a medicine administered by injection syringe, including syringe and the piston that is slidably matched with described syringe, on described syringe, entry needle is installed, described piston includes core bar and piston head, it is characterized in that: also include the auxiliary piston mechanism being arranged in described piston, described auxiliary piston mechanism includes auxiliary piston and the central through hole being arranged in described piston, described central through hole includes being positioned at the piston hole section of side, described piston head place and being positioned at the push-rod hole section of side, described core bar place, described auxiliary piston includes the auxiliary piston head being slidably matched with described piston hole section and coordinating with described entry needle and for the auxiliary piston push rod promoting described auxiliary piston head to slide, one end of described auxiliary piston push rod is stretched out outside described core bar.
Medicine administered by injection syringe the most according to claim 1, it is characterised in that: described auxiliary piston head use soft rubber make and with described piston hole section close fit.
Medicine administered by injection syringe the most according to claim 1, it is characterised in that: the external diameter of described auxiliary piston push rod is more than the external diameter of described auxiliary piston head.
4. according to the medicine administered by injection syringe described in any one of claim 1-3, it is characterized in that: also include insurance institution, described insurance institution includes being arranged on described core bar away from the breaking pin hole of described piston head side and the insurance cotter way that is correspondingly arranged on described auxiliary piston push rod, is provided with and the safety plug of described safety plug slot fit in described breaking pin hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521123670.9U CN205434587U (en) | 2015-12-31 | 2015-12-31 | Medicine administered by injection syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521123670.9U CN205434587U (en) | 2015-12-31 | 2015-12-31 | Medicine administered by injection syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205434587U true CN205434587U (en) | 2016-08-10 |
Family
ID=56573349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521123670.9U Expired - Fee Related CN205434587U (en) | 2015-12-31 | 2015-12-31 | Medicine administered by injection syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205434587U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108969845A (en) * | 2018-08-08 | 2018-12-11 | 四川普瑞斯生物科技有限公司 | A kind of novel low-resistance injector |
| CN109675178A (en) * | 2018-12-04 | 2019-04-26 | 郑州大学第一附属医院 | A kind of drug pushing device for treating canker sore |
-
2015
- 2015-12-31 CN CN201521123670.9U patent/CN205434587U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108969845A (en) * | 2018-08-08 | 2018-12-11 | 四川普瑞斯生物科技有限公司 | A kind of novel low-resistance injector |
| CN109675178A (en) * | 2018-12-04 | 2019-04-26 | 郑州大学第一附属医院 | A kind of drug pushing device for treating canker sore |
| CN109675178B (en) * | 2018-12-04 | 2021-07-02 | 郑州大学第一附属医院 | Medicine pusher for treating oral ulcer |
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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: 20160810 Termination date: 20161231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |