CN103990206B - Auto-disable syringe with retractable syringe needle - Google Patents
Auto-disable syringe with retractable syringe needle Download PDFInfo
- Publication number
- CN103990206B CN103990206B CN201410122783.0A CN201410122783A CN103990206B CN 103990206 B CN103990206 B CN 103990206B CN 201410122783 A CN201410122783 A CN 201410122783A CN 103990206 B CN103990206 B CN 103990206B
- Authority
- CN
- China
- Prior art keywords
- syringe
- needle
- pull
- tube
- injection tube
- 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
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a safety auto-disable syringe with a retractable syringe needle. An auto-disable device is arranged in the syringe. The auto-disable syringe comprises a pull-back head, a conical mesh and a pull-out rod, wherein the pull-back head is located in a needle base, the syringe needle adheres into the position, at the front end of the pull-back head, in a pipe body, a frustum type structure is arranged on the inner wall, at the bottom end of the pull-back head, of the pipe body, and a first protrusion is arranged on the outer wall, at the bottom end of the pull-back head, of the pipe body. The conical mesh is formed in the inner wall, located on the connection section of a syringe tube and the needle base, of the syringe tube, and the conical net abuts against the bottom end of the pull-back head. The pull-out is arranged at the front end of a push rod, the end, facing the needle base, of the pull-out is composed of a hollow cylindrical outer pipe and a frustum type protrusion arranged in the outer pipe, and a first groove matched with the first protrusion is formed in the inner wall of the outer pipe. According to the safe auto-disable syringe, the pull-out is sleeved with the pull-back head to drive the pull-back head and the syringe needle to retract into the syringe tube, the push rod is broken on the annular groove, and therefore the auto-disable function is achieved.
Description
Technical field
The invention belongs to technical field of medical instruments, relate to a kind of syringe, disposable particularly to one
Safety self-destructing syringe.
Background technology
Common injector for medical purpose owing to reusing, easily cause between crowd blood borne disease (as
Hepatitis B, acquired immune deficiency syndrome (AIDS) etc.) propagation, all there is serious social harm in these blood borne diseases.In order to
Avoiding the viral cross infection that the syringe used by secondary causes, syringe the most i.e. should give up
Abandon, but the medical institutions still having at present the minority in some areas irregular can carry out profit again to syringe
With, the probability of cross infection between such patient increases, and even directly results in the generation of malpractice.Now
Widely used disposable syringe belongs to managerial concept, serviceability is not " disposably ", and
It is repeated multiple times to use, so will leave hidden danger, and the propagation that tends to produce the disease of to cross infection.
Can the disposable syringe of auto-destruct function be paid close attention to after using in recent years, some syringes exist
Push rod is provided with the shackle member engaged with needle stand, and after injection, described shackle member can make push rod and pin base fastener
Close, make push-rod lock in needle stand, it is impossible to reuse, thus reach the purpose of self-destruction.But this kind of note
Outside syringe needle is still exposed to after emitter self-destruction, easily stab hospitalized patients, cause new cross infection, and not
It is beneficial to destroy.People pass through improved structure, have devised the safe self-destruction injection of a kind of needle retractable
Device.But this type of syringe existing is most because structure is complicated, cost is high, operation easier is big, self-destruction effect
The reason such as undesirable cannot popularization and application.
Based on the above, a kind of simple in construction, the safety self-destructing syringe of needle retractable of low cost
The necessary property of exploitation.
Summary of the invention
For weak point present in above-mentioned technology, the present invention provides the safe self-destruction of a kind of needle retractable
Formula syringe, sets self-desttruction equipment, described self-desttruction equipment in the safety self-destructing syringe of described needle retractable
Pulled back head by pull rod cutting ferrule, push rod of pulling back will pull back head and syringe needle be returned to injection tube in the lump in realize
Self-destruction, described push rod can fracture after pulling back at annular groove, this self-desttruction equipment simple in construction, it is easy to add
Work molding, and low cost.
The safety self-destructing syringe of described needle retractable, including injection tube, is positioned at described injection tube
And the push rod, the needle stand being connected to described injection tube head that match with described injection tube and be fastened on described
Helmet outside needle stand, wherein, is additionally provided with safety self-destructing device, described safe self-destruction in described syringe
Formula device includes,
Pull back head, in shuttle-type or the hollow tube structure of " 1 " font, be positioned at described needle stand, described time
Bonded needle in pull head front tube body, described in a bottom inboard wall of tube body of pulling back be set to tapered structure, described cone
Pull back a bottom described in being in type structure bottom, described in pull back that to be provided with first protruding for a bottom tube wall；
Taper mesh, described taper mesh is the taper type through-hole structure surrounded by grid, described taper
Mesh is located at the injection tube inwall of described injection tube and described needle stand linkage section, and described taper mesh hole is along supporting
Pull back described in top a bottom；
Pull rod, is located at described push rod front end, described pull rod towards described needle stand one end by hollow circuit cylinder
Shape outer tube and the tapered protruding composition being located in described outer tube, described outer tube wall is provided with and described head of pulling back
The first groove that tube wall the first projection in bottom matches, described pull rod length is more than described conic net
The height in hole is pulled back a height for bottom pyramidal structure body described in adding；
Wherein, described tapered projection matches with a described bottom inboard wall of tube body structure of pulling back, described outer tube
Internal diameter matches with a described bottom outer tube diameter of pulling back, and described first is protruding and between described first groove
Distance equal to described frustum type bump bottom ends to described in pull back the distance between a bottom.
Preferably, the safety self-destructing syringe of described needle retractable, wherein, described injection tube with
Described taper mesh is formed in one structure, and described taper mesh is located at described injection tube with described needle stand even
The injection tube inwall of the section of connecing and one end of close described push rod, the outer, bottom of described taper mesh is with described
Injection tube is connected.
Preferably, the safety self-destructing syringe of described needle retractable, wherein, described taper mesh
Taper type structure end face side towards described needle stand, described taper mesh taper type structure floor is towards institute
State push rod.
Preferably, the safety self-destructing syringe of described needle retractable, wherein, described taper mesh
Taper type structure end face diameter is pulled back a bottom diameter described in being equal to.
Preferably, the safety self-destructing syringe of described needle retractable, wherein, described in pull back head tube
Body interlude outer wall is provided with the inclined-plane supported mutually with described needle stand inwall, described in head of pulling back be embedded in described needle stand
And between described taper mesh.
Preferably, the safety self-destructing syringe of described needle retractable, wherein, described first is protruding
For a bottom tube wall and the symmetrically arranged a pair or more of projection of pulling back described in cincture.
Preferably, the safety self-destructing syringe of described needle retractable, wherein, described push rod and institute
Stating pull rod to be formed in one, described push rod and described pull rod joint are in " work " type structure, described
It is socketed with rubber stopper at " work " type structure.
Preferably, the safety self-destructing syringe of described needle retractable, wherein, described push rod is close
Annular groove is set at described pull rod one end 1/4th.
Preferably, the safety self-destructing syringe of described needle retractable, wherein, described in pull back head tube
Body top inwall is inverted cone-shaped structure, described in head tube body leading portion of pulling back be additionally provided with blistered storage glue section in order to viscous
Connect described syringe needle.
Preferably, the safety self-destructing syringe of described needle retractable, wherein, described syringe is also
Being provided with screw socket device, described screw socket device card is located at the injection tube of described injection tube and described needle stand linkage section
At outer wall.
The beneficial effect of self-destruction syringe of the needle retractable that the present invention provides: 1) production cost is low: and
Like product on market is compared, and processing cost is low, and syringe needle used is identical with ordinary syringe syringe needle standard,
Syringe needle can be interchangeable common between interworking, and 0.5mL, 1mL, 2mL, 3mL, 5mL, 10mL syringe needle
With；2) easily being automated assembling, automated production can effectively reduce cost and control quality, market
Upper existing portioned product cannot be carried out full-automatic production, and some product can only carry out semi-automatic production,
The self-destruction syringe of needle retractable of the present invention only needs ordinary syringe kludge slight modification
Realize, as syringe needle, common viscous pin machine being modified slightly；3) mold produces: described
The production of the self-destruction syringe of needle retractable can use mould to carry out production and processing, and each accessory is minimum
Opening 32 caves, production efficiency is greatly improved；4) screw socket device is set: low dose of 0.5mL, 1mL syringe
If screw socket device；5) conic net aperture apparatus, the introducing of taper mesh is effectively reduced Principle of Pain, taper
Grid and push rod coordinate does not has " assault " phenomenon percussion when, due to the cushioning effect of taper mesh,
Make medicine stream will not be injected into human body rapidly, improve the comfort of patient；6) accessory shares, and reduces cost,
Easy to control the quality: 0.5mL, 1mL, 2mL, 3mL, 5mL or 10mL, in addition to injection tube and push rod,
No matter remaining part injection tube amount of capacity all can realize sharing, thus reduces cost；7) mechanism's design,
Positive confinement: safety injector is it is crucial that seal, including forward end seal, back-end sealing, and production technology
Easily controllable, existing portioned product complex manufacturing on market, it is desirable to the highest, the even employing having is former
Beginning sealing ring seals, but assembles difficulty and strengthen, and inefficiency, and quality control difficulty strengthens；8)
Residual quantity is up to standard: the self-destruction syringe liquor residue amount of described needle retractable is less than GB 30%, advantage
Relatively market like product highlights；9) protection is sealed: pull rod uses the side of sleeve pipe near described needle stand one end
Formula, said inner tube center is hollow-core construction or sets the anti-vacuum tank of concave or convex to improve sealing.
Accompanying drawing explanation
Fig. 1 is the self-destruction syringe overall structure schematic diagram of needle retractable of the present invention；
Fig. 2 is the self-destruction syringe injection tube structural representation of needle retractable of the present invention；
Fig. 3 is the self-disposable type inspirator push-rod structural representation of needle retractable of the present invention；
Fig. 4 a be needle retractable of the present invention self-destruction syringe in self-desttruction equipment wire frame structure show
It is intended to；
Fig. 4 b be needle retractable of the present invention self-destruction syringe in self-desttruction equipment partial enlargement line
Shelf structure schematic diagram；
Fig. 5 a be needle retractable of the present invention self-destruction syringe in pull back header structure schematic diagram；
Fig. 5 b be needle retractable of the present invention self-destruction syringe in pull back the signal of wire frame structure
Figure；
Fig. 6 be needle retractable of the present invention self-destruction syringe in rubber plug structure schematic diagram；
Fig. 7 be needle retractable of the present invention self-destruction syringe in screw socket apparatus structure schematic diagram；
Fig. 8 be needle retractable of the present invention self-destruction syringe in needle stand structure schematic diagram；
Fig. 9 be needle retractable of the present invention self-destruction syringe in helmet structural representation.
Detailed description of the invention
The present invention is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art's reference
Description word can be implemented according to this.
See Fig. 1, Fig. 2, Fig. 3, Fig. 4 a, Fig. 4 b, Fig. 5 a, Fig. 5 b, Fig. 6, Fig. 7, Fig. 8
And shown in Fig. 9, the safety self-destructing syringe of the needle retractable of its explanation one embodiment of the invention, described
The safety self-destructing syringe of needle retractable, including injection tube 1, be positioned at described injection tube 1 and with
Push rod 2 that described injection tube 1 matches, it is connected to the needle stand 3 of described injection tube 1 head and is fastened on
Helmet 4 outside described needle stand 3, wherein, is additionally provided with safety self-destructing device in described syringe, described
Safety self-destructing device includes, pulls back 5, in shuttle-type or the hollow tube structure of " 1 " font, is positioned at
In described needle stand 3, described in pull back bonded needle in a 5 front tube body, described in pull back a bottom 5-1 pipe
Internal wall is set to tapered structure, described tapered structure bottom be described in pull back a bottom 5-1, described time
Pull head bottom 5-1 tube wall is provided with the first protruding 5-2；Taper mesh 6, described taper mesh 6 is logical
Crossing the taper type through-hole structure that grid surrounds, described taper mesh 6 is located at described injection tube 1 and described pin
Injection tube 1 inwall of seat 3 linkage sections, described taper mesh 6 hole is along a bottom 5-1 that pulls back described in supporting；
Pull rod 9, is located at described push rod 2 front end, described pull rod 9 towards described needle stand 3 one end by hollow
Cylindric outer tube and the tapered protruding composition being located in described outer tube, described outer tube wall is provided with and described time
The first groove that the protruding 5-2 of pull head bottom 5-1 tube wall first matches, described pull rod 9 length
More than the height of described taper mesh 6 add described in pull back a height for bottom 5-1 pyramidal structure body；Its
In, described tapered projection matches, in described outer tube with a described bottom 5-1 inboard wall of tube body structure of pulling back
Footpath matches with a described bottom 5-1 outer tube diameter of pulling back, and described first protruding 5-2 is first recessed with described
Distance between groove equal to described frustum type bump bottom ends to described in pull back the distance between a bottom 5-1.Described
Injection tube 1 and described taper mesh 6 are formed in one structure, and described taper mesh 6 is located at described injection
Cylinder 1 and injection tube 1 inwall of described needle stand 3 linkage section and one end of close described push rod 2, described cone
The outer, bottom of shape mesh 6 is connected with described injection tube 1.The taper type structure top of described taper mesh 6
Side, face is towards described needle stand 3, and described taper mesh 6 taper type structure floor is towards described push rod 2.Institute
State taper mesh 6 taper type structure end face diameter be equal to described in pull back a bottom 5-1 diameter.Described pull back
5 body stage casing 5-3 outer walls are provided with the inclined-plane supported mutually with described needle stand 3 inwall, described in pull back 5
It is embedded between described needle stand 3 and described taper mesh 6.Described first protruding 5-2 pulls back described in cincture
Head bottom 5-1 tube wall and symmetrically arranged a pair or more of projection.Described push rod 2 and institute
State pull rod 9 to be formed in one, described push rod 2 and described pull rod 9 joint in " work " type structure,
It is socketed with rubber stopper 7 at described " work " type structure.Described push rod 2 is near described pull rod 9 one end four
Annular groove is set at/mono-.Described annular groove is for 5 being drawn back in injection tube 1 when pull back
After, described push rod 2 fractures at annular groove, thus reaches the purpose of dual self-destruction.Described head of pulling back
5 body top inwalls are inverted cone-shaped structure 5-4, described in 5 body leading portion of pulling back be additionally provided with blistered storage glue
5-5 is in order to bonding described syringe needle for section.Described syringe is additionally provided with screw socket device 8, described screw socket device 8
It is arranged at injection tube 1 outer wall of described injection tube 1 and described needle stand 3 linkage section.
During use, in the safety self-destructing syringe of described needle retractable, push rod 2 pushes against medicinal liquid from injection
Enter through taper mesh in cylinder 1 and pull back 5 in needle stand 3, and pull back described in passing through 5 by medicinal liquid from
Exporting to patient body at syringe needle, be pressed down against with push rod 2, described push rod 2 top pull rod 9 passes
Described taper mesh 6, and 5 bottom of pulling back described in entrance, described tapered protrusion enters and pulls back at 5 end
End body, described outer tube be wrapped in described in pull back outside a 5 bottom body, because described tapered protrusion is with described
A 5 bottom inboard wall of tube body of pulling back match, described outer tube diameter and a described 5 bottom outer tube diameter of pulling back
Match, therefore described pull rod 95 forms the state combined closely with described pulling back, the most described the
One protruding 5-2 enters described first groove, and the conveying of injection tube 1 inner liquid medicine terminates, and self-desttruction equipment starts；
Pull back described push rod 2, pull back described in described pull rod 9 drawstring and 5 move in injection tube 1, described
Syringe needle 5 moves in injection tube 1 with described pulling back, and continues to be pulled outwardly push rod 2, and is existed by push rod 2
Fractureing at annular groove, self-destruction terminates.
Although embodiment of the present invention are disclosed as above, but it is not restricted to description and embodiment party
Listed utilization in formula, it can be applied to various applicable the field of the invention completely, for being familiar with ability
For the personnel in territory, be easily achieved other amendment, therefore without departing substantially from claim and etc. homotype
Enclosing under limited general concept, the present invention is not limited to specific details and shown here as the figure with description
Example.
Claims (10)
1. a safety self-destructing syringe for needle retractable, including injection tube, is positioned at described injection tube
And the push rod, the needle stand being connected to described injection tube head that match with described injection tube and be fastened on described
Helmet outside needle stand, it is characterised in that be additionally provided with safety self-destructing device, described peace in described syringe
Complete type self-destroyed device includes,
Pull back head, in shuttle-type or the hollow tube structure of " 1 " font, be positioned at described needle stand, described time
Bonded needle in pull head front tube body, described in a bottom inboard wall of tube body of pulling back be set to tapered structure, described cone
Pull back a bottom described in being in type structure bottom, described in pull back that to be provided with first protruding for a bottom tube wall；
Taper mesh, described taper mesh is the taper type through-hole structure surrounded by grid, described taper
Mesh is located at the injection tube inwall of described injection tube and described needle stand linkage section, and described taper mesh hole is along supporting
Pull back described in top a bottom；
Pull rod, is located at described push rod front end, described pull rod towards described needle stand one end by hollow circuit cylinder
Shape outer tube and the tapered protruding composition being located in described outer tube, described outer tube wall is provided with and described head of pulling back
The first groove that tube wall the first projection in bottom matches, described pull rod length is more than described conic net
The height in hole is pulled back a height for bottom pyramidal structure body described in adding；
Wherein, described tapered projection matches with a described bottom inboard wall of tube body structure of pulling back, described outer tube
Internal diameter matches with a described bottom outer tube diameter of pulling back, and described first is protruding and between described first groove
Distance equal to described tapered bump bottom ends to described in pull back the distance between a bottom.
The safety self-destructing syringe of needle retractable the most according to claim 1, it is characterised in that
Described injection tube and described taper mesh are formed in one structure, and described taper mesh is located at described injection tube
With the injection tube inwall of described needle stand linkage section and one end of close described push rod, the end of described taper mesh
End outer is connected with described injection tube.
The safety self-destructing syringe of needle retractable the most according to claim 2, it is characterised in that
The taper type structure end face side of described taper mesh is tied towards described needle stand, described taper mesh taper type
Structure bottom surface is towards described push rod.
The safety self-destructing syringe of needle retractable the most according to claim 3, it is characterised in that
Described taper mesh taper type structure end face diameter is pulled back a bottom diameter described in being equal to.
The safety self-destructing syringe of needle retractable the most according to claim 4, it is characterised in that
Described head tube body interlude outer wall of pulling back is provided with the inclined-plane supported mutually with described needle stand inwall, described in pull back head
It is embedded between described needle stand and described taper mesh.
The safety self-destructing syringe of needle retractable the most according to claim 1, it is characterised in that
Described first protruding for pulling back a bottom tube wall and symmetrically arranged a pair or more than a pair described in cincture
Projection.
The safety self-destructing syringe of needle retractable the most according to claim 1, it is characterised in that
Described push rod is formed in one with described pull rod, and described push rod and described pull rod joint are in " work "
Type structure, is socketed with rubber stopper at described " work " type structure.
The safety self-destructing syringe of needle retractable the most according to claim 7, it is characterised in that
Described push rod sets annular groove at pull rod one end 1/4th.
The safety self-destructing syringe of needle retractable the most according to claim 1, it is characterised in that
Described head tube body top inwall of pulling back is inverted cone-shaped structure, described in head tube body leading portion of pulling back be additionally provided with blistered
Storage glue section is in order to bonding described syringe needle.
The safety self-destructing syringe of needle retractable the most according to claim 1, it is characterised in that
Described syringe is additionally provided with screw socket device, and described screw socket device card is located at described injection tube with described needle stand even
At the injection tube outer wall of the section of connecing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410122783.0A CN103990206B (en) | 2014-03-28 | 2014-03-28 | Auto-disable syringe with retractable syringe needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410122783.0A CN103990206B (en) | 2014-03-28 | 2014-03-28 | Auto-disable syringe with retractable syringe needle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103990206A CN103990206A (en) | 2014-08-20 |
| CN103990206B true CN103990206B (en) | 2017-01-11 |
Family
ID=51304697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410122783.0A Expired - Fee Related CN103990206B (en) | 2014-03-28 | 2014-03-28 | Auto-disable syringe with retractable syringe needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103990206B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR112021001432A2 (en) * | 2018-07-27 | 2021-04-27 | Becton, Dickinson And Company | needle guard for syringe |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030199834A1 (en) * | 2002-04-18 | 2003-10-23 | Chi-Hsuan Hsu | Self-locking disposable safety syringe |
| US20070123830A1 (en) * | 2005-11-29 | 2007-05-31 | Addino B.V. | Safety syringe |
| CN201320335Y (en) * | 2008-12-17 | 2009-10-07 | 安卓国际(南通)医疗器械有限公司 | Self-destructing needlepoint retractile safe syringe |
| CN203885954U (en) * | 2014-03-28 | 2014-10-22 | 顶一医疗设备（昆山）有限公司 | Self-destruction injector with retractable needle head |
-
2014
- 2014-03-28 CN CN201410122783.0A patent/CN103990206B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN103990206A (en) | 2014-08-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2022104772A (en) | Syringe having plunger repulsive pressure reduction structure | |
| CN103990206B (en) | Auto-disable syringe with retractable syringe needle | |
| CN201030119Y (en) | Safety syringe with the needle backing automatically | |
| CN203885954U (en) | Self-destruction injector with retractable needle head | |
| CN101480511B (en) | Disposable safety syringe with syringe needle capable of automatically retracting | |
| CN205515809U (en) | Disposable destructive syringe | |
| CN210145216U (en) | Syringe for viscous liquid medicine | |
| CN209490329U (en) | Disposable syringe | |
| CN204543133U (en) | Automatic vent syringe | |
| CN203971088U (en) | A kind of needle stand for haulback type self-destroyed syringe | |
| CN102921070B (en) | Combined type injection syringe | |
| CN103654997B (en) | A kind of continuous injector | |
| CN203815994U (en) | Auto-disable syringe | |
| CN208525421U (en) | The bottled dosage form of Shu Xuening injection | |
| CN203935476U (en) | A kind of disposable self-destruction syringe | |
| CN206183794U (en) | Gynaecology's gel ware of dosing | |
| CN201320335Y (en) | Self-destructing needlepoint retractile safe syringe | |
| CN204671665U (en) | Novel injection pin | |
| CN204219529U (en) | Safe self-breaking syringe | |
| CN103990209A (en) | Needle base for pullback-type self-destroying syringe | |
| CN104001234B (en) | A kind of disposable self-destruction syringe | |
| CN203885957U (en) | Self-destruction device for safety self-destructive injector | |
| CN203139290U (en) | Disposable nursing self-destroying needle | |
| CN203263629U (en) | Low-residue small-dose disposable syringe | |
| CN215741008U (en) | Self-destruction syringe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20170111 Termination date: 20210328 |