CN2612386Y - Self-destruction type disposable safe syringe without residue - Google Patents
Self-destruction type disposable safe syringe without residue Download PDFInfo
- Publication number
- CN2612386Y CN2612386Y CN 03230422 CN03230422U CN2612386Y CN 2612386 Y CN2612386 Y CN 2612386Y CN 03230422 CN03230422 CN 03230422 CN 03230422 U CN03230422 U CN 03230422U CN 2612386 Y CN2612386 Y CN 2612386Y
- Authority
- CN
- China
- Prior art keywords
- needle stand
- needle
- main body
- cylindrical shell
- self
- 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
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to a disposable safe injector which can make a pinhead retracted and damaged, comprising a main body, a needlepoint with a needle stand, the main body, a push rod whose top-end is provided with a plunger, wherein, the needle stand is arranged inside the main body, and the needle stand is joint-connected with the main body. A taper groove with a ring prominence is arranged on an end-surface of the needle stand, a taper board which is coordinated with the taper groove provided on the needle stand in size and shape is arranged on an end-surface of the plunger. When in use, after liquid medicine accomplishing injection, the plunger is top-pushed to a taper top-wall of the needle main body, and meanwhile, the taper board arranged on the plunger is stretched inside a cylinder neck, and embedded inside the taper groove which is arranged inside the needle stand. If pulling back is needed, the needle stand and a neck column will be pulled inside the main body, thereby, self-damage to safe can be achieved. The utility model is characterized in that the structure is simple, the use is convenient, safe and reliable, no rudimental liquid, the secondary recycling use can be avoided, and the possibility that the user may be punctured wound or infected by needlepoint can be stopped thoroughly.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments of injection, particularly can make the disposible safety syringe of needle retractable damage.
Technical background
Existing disposable syringe still exists reusable probability, and for this reason, people have developed type self-destroyed or self-locking disposable injector, guarantees that syringe can not use by secondary.But outside contaminated needle point still was exposed to, medical worker or cleaning employee did not note slightly, are very easily infected by needle sting.It is 002592614 that State Intellectual Property Office's calendar year 2001 JIUYUE was announced the patent No. on the 19th, and name is called the technical scheme of " needle retractable damage type safety injector ".After this syringe shot, syringe needle is sucked up in the needle cylindrical unit and can not reuses, thereby, it both thoroughly stopped user stabbed by needle point or infect may, solve the purpose of damage syringe needle, disabling syringe again preferably.But still have many deficiencies: the one, residual in the needle cylindrical unit of injection back have a medicinal liquid, the 2nd, push rod be connected after needle holder plugs together unreliable, disengaging easily in the suction syringe needle process.
The utility model content
The purpose of this utility model is to provide a kind of not only safety, but also the self-destruction syringe of noresidue liquid.
The technical solution of the utility model is such: it comprises cylindrical shell, have the needle point of needle stand and place in the cylindrical shell, the push rod of top band piston boit; Wherein cylinder top is provided with a neck, and the needle stand on the needle point places in the neck, and combines closely with it.The relative piston boit of needle stand, its end face are provided with the protruding conical grooves of zone circle, the piston boit end face be provided with band neck post and with needle stand on conical grooves size, the frustum of a cone that shape matches.Circle tang footpath size on neck post external diameter and the conical grooves port matches.During use, piston boit push rod promote or pulling under, aspiration medicinal liquid or liquid medicine injection.When injecting liquid drug finished, to the taper roof of needle cylindrical unit, simultaneously, the frustum of a cone on the piston boit stretched into a neck to piston boit by pushing tow, embedded in the conical grooves in the needle stand; At this moment, push rod is locked on the needle stand; If retract, needle stand and neck post will be pulled in the cylindrical shell, thereby reach the purpose of destructing safety.Owing to match closely between piston boit, the frustum of a cone and cylindrical shell roof and the needle stand, therefore, use the interior no any residual liquor of rear cylinder body.
This utility model and prior art mutually this, have advantages such as simple in structure, esy to use, safe and reliable, noresidue liquid, it has thoroughly been stopped the secondary reuse and the user of syringe and has been stabbed or possibility of infection by needle point.
Below in conjunction with embodiment shown in the drawings, this utility model is described in further detail.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is piston boit and the needle stand structural representation when not plugging together.
Fig. 3 is the structure enlarged diagram after Fig. 2 plugs together.
Among the figure: 1, needle point, 2, sheath, 3, needle stand, 31, rank are protruding, 32, conical grooves, 33, circle is protruding, 4, cylindrical shell, 41, the tube neck, 412, shoulder is protruding, 5, piston boit, 6, push rod, 7, spacer.
The specific embodiment
Referring to Fig. 1, safe disposable syringes of self-destroying and non-residue is had the needle point 1 of needle stand 3 and is placed the push rod 6 in the cylindrical shell 4 to form by cylindrical shell 4.Cylindrical shell 4 roofs are conical walls, and the centre is provided with a neck 41, and it is protruding 412 that tube neck 41 inwalls are provided with shoulder, and it is protruding 31 to place needle stands 3 in the neck 41 also to be provided with rank, matches with tube neck 4 inwalls, and makes needle point 1 stretch out a neck 41.Needle stand 3 tops have the conical grooves 32 of zone circle protruding 33, and push rod 6 tops have piston boit 5, and piston boit 5 is provided with the frustum of a cone 51 of being with neck post 52 over against the conical grooves 32 on the needle stand 3, and the frustum of a cone 51 can be fitted to conical grooves 32 confidential reference items just, sees Fig. 2, Fig. 3.Because conical grooves 32 has thin mouthful circle protruding 33, push rod 6 is during by post-tensioning, and the frustum of a cone 51 does not break away from conical grooves 32, moves in the cylindrical shell 4 after together and can only drive needle stand 3 and needle point 1.
For fear of cylindrical shell 4 interior residual liquors, cylindrical shell 4 roofs and piston boit 5 end faces are made the taper shape that cooperatively interacts.
In order to prevent firmly bulldozing needle base 3 of throw-out lever 6, push rod 6 is provided with spacer 7, and when this spacer was pushed into cylindrical shell 4 roofs at push rod 6, spacer 7 touched on cylindrical shell 4 ports just.Spacer 4 can be provided with two or more.
In order to protect needle point, this utility model is with sheath 2 before use on needle point 1.
Claims (3)
1, a kind of safe disposable syringes of self-destroying and non-residue comprises cylindrical shell (4), has the needle point (1) of needle stand (3) and places the push rod (6) that cylindrical shell (4) is interior, the top has piston boit (5); Its middle cylinder body (4) top is provided with a neck (41), needle stand (3) on the needle point (1) places in the neck (41), and combine closely with it, it is characterized in that: needle stand (3) is provided with the conical grooves (32) of port zone circle protruding (33), be provided with the cylinder table (51) of band neck post (52) in the middle of piston boit (5) end face, conical grooves (32) size on the frustum of a cone (51) and the needle stand (3), shape match, and neck post (52) external diameter matches with circle protruding (33) bore, size on conical grooves (32) mouth.
2, according to the described safe disposable syringes of self-destroying and non-residue of claim 1, it is characterized in that: described cylindrical shell (4) roof and piston boit (5) end face are made close taper shape of joining mutually.
3, according to claim 1 or 2 described safe disposable syringes of self-destroying and non-residue, it is characterized in that: described push rod (6) rear end is provided with one or 2 spacers (7), when this spacer (7) is pushed into cylindrical shell (4) roof at push rod (6), touch just on cylindrical shell (4) port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03230422 CN2612386Y (en) | 2003-04-14 | 2003-04-14 | Self-destruction type disposable safe syringe without residue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03230422 CN2612386Y (en) | 2003-04-14 | 2003-04-14 | Self-destruction type disposable safe syringe without residue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2612386Y true CN2612386Y (en) | 2004-04-21 |
Family
ID=34165295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03230422 Expired - Lifetime CN2612386Y (en) | 2003-04-14 | 2003-04-14 | Self-destruction type disposable safe syringe without residue |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2612386Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100425303C (en) * | 2006-01-12 | 2008-10-15 | 林作钱 | Safe self-destruction syringe for medical purpose |
-
2003
- 2003-04-14 CN CN 03230422 patent/CN2612386Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100425303C (en) * | 2006-01-12 | 2008-10-15 | 林作钱 | Safe self-destruction syringe for medical purpose |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang Yusheng Medical Device Co., Ltd. Assignor: Qian Yunzhou Contract fulfillment period: 2005.1.10 to 2013.4.13 Contract record no.: 2008330002031 Denomination of utility model: Self-destruction type disposable safe syringe without residue Granted publication date: 20040421 License type: Exclusive license Record date: 20081117 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2005.1.10 TO 2013.4.13; CHANGE OF CONTRACT Name of requester: ZHEJIANG PROVINCE YUSHENG MEDICAL TREATMENT EQUIPM Effective date: 20081117 |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130414 Granted publication date: 20040421 |