CN203885954U - Self-destruction injector with retractable needle head - Google Patents
Self-destruction injector with retractable needle head Download PDFInfo
- Publication number
- CN203885954U CN203885954U CN201420147954.0U CN201420147954U CN203885954U CN 203885954 U CN203885954 U CN 203885954U CN 201420147954 U CN201420147954 U CN 201420147954U CN 203885954 U CN203885954 U CN 203885954U
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- China
- Prior art keywords
- needle
- pulling back
- tube
- syringe
- 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 - Lifetime
Links
- 238000002347 injection Methods 0.000 claims abstract description 49
- 239000007924 injection Substances 0.000 claims abstract description 49
- 239000000284 extract Substances 0.000 claims description 17
- 239000003292 glue Substances 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 244000208734 Pisonia aculeata Species 0.000 abstract 8
- 238000000605 extraction Methods 0.000 abstract 4
- 238000010586 diagram Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 8
- 206010011409 Cross infection Diseases 0.000 description 4
- 206010029803 Nosocomial infection Diseases 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 208000030507 AIDS Diseases 0.000 description 2
- 208000035049 Blood-Borne Infections Diseases 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000019994 cava Nutrition 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 208000002672 hepatitis B Diseases 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 208000011580 syndromic disease Diseases 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000003612 virological effect Effects 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a safety self-destruction injector with a retractable needle head. A self-destruction device is arranged in the injector. The safety self-destruction injector comprises a pull-back head, a conical mesh hole and an extraction rod, wherein the pull-back head is positioned in a needle holder; the needle head is bonded in a tube body at the front end of the pull-back head; the inner wall of a tube body at the bottom end of the pull-back head has a frustum-shaped structure; the outer wall of the tube body at the bottom end of the pull-back head is provided with a first bump; the conical mesh hole is formed in an injection barrel inner wall at the connecting segment of an injection barrel and the needle holder, and is pressed against the bottom end of the pull-back head; the extraction rod is arranged at the front end of a push rod; one end, which faces the needle holder, of the extraction rod consists of a hollow cylindrical outer tube and a frustum-shaped bump arranged in the outer tube; the inner wall of the outer tube is provided with a first groove matched with the first bump. According to the safety self-destruction injector provided by the utility model, the extraction rod sleeves the pull-back head to drive the pull-back head and the needle head to retract into the injection barrel, and self-destruction is realized by breaking the push rod from an annular groove.
Description
Technical field
This utility model belongs to technical field of medical instruments, relates to a kind of syringe, particularly a kind of disposable safety self-ruined syringe.
Background technology
Common injector for medical purpose, owing to reusing, easily causes the propagation of blood borne disease (as hepatitis B, acquired immune deficiency syndrome (AIDS) etc.) between crowd, and these blood borne diseases all exist serious social harm.The viral cross infection causing for fear of the syringe being used by secondary, syringe should be discarded after once using, yet still have at present the irregular medical institutions of some regional minorities again to utilize syringe, so between patient, the probability of cross infection increases, and even directly causes the generation of malpractice.Present widely used disposable syringe belongs to managerial concept, is not " disposable ", but can repeated multiple timesly uses in serviceability, so will leave hidden danger to cross infection, and the propagation that tends to produce the disease of.With disposable syringe that can auto-destruct function after using, paid close attention in recent years, some syringes are provided with the shackle member engaging with needle stand on push rod, after injection, described shackle member can make push rod engage with needle stand, make push-rod lock in needle stand, can not reuse, thereby reach the object of self-destruction.Outside but syringe needle is still exposed to after this class syringe self-destruction, very easily stab hospitalized patients, cause new cross infection, and be unfavorable for destroying.People, by improving structure, have designed a kind of safe self-breaking syringe of needle retractable.But existing this type of syringe majority because of complex structure, cost is high, operation easier is large, self-destruction effect is undesirable etc., and reason cannot be applied.
Based on the above, a kind of necessary property of exploitation of safety self-destructing syringe of simple in structure, needle retractable that cost is low.
Utility model content
For the weak point existing in above-mentioned technology, this utility model provides a kind of safety self-destructing syringe of needle retractable, in the safety self-destructing syringe of described needle retractable, establish self-desttruction equipment, described self-desttruction equipment is by extracting the bar cutting ferrule head of pulling back, to pull back head and syringe needle of the push rod of pulling back is returned in the lump in injection tube and realizes self-destruction, and described push rod can fracture from annular groove place after pulling back, and this self-desttruction equipment is simple in structure, be easy to machine-shaping, and cost is low.
The safety self-destructing syringe of described needle retractable, comprise injection tube, be positioned at described injection tube and the push rod matching with described injection tube, be connected in the needle stand of described injection tube head and be fastened on the helmet outside described needle stand, wherein, in described syringe, be also provided with safety self-destructing device, described safety self-destructing device comprises
The head of pulling back, the hollow tube structure that is shuttle type or " 1 " font, be positioned at described needle stand, bonded needle in a described front end body of pulling back, a described bottom inboard wall of tube body of pulling back is made as tapered structure, a bottom of pulling back described in described tapered structure bottom is, described in a bottom tube wall of pulling back be provided with the first projection;
Taper mesh, described taper mesh is the taper type through-hole structure that surrounds by grid, described taper mesh is located at the injection tube inwall of described injection tube and described needle stand linkage section, a bottom of pulling back described in supporting, edge, described taper mesh hole;
Extract bar, be located at described push rod front end, the described bar of extracting is comprised of hollow cylindrical outer tube and the tapered projection be located in described outer tube towards described needle stand one end, described outer tube wall is provided with and described first groove that tube wall the first projection in bottom matches of pulling back, described in extract height that pole length is greater than a described taper mesh height for bottom pyramidal structure body of pulling back described in adding;
Wherein, described tapered projection with described in a bottom inboard wall of tube body structure of pulling back match, described outer tube diameter with described in a bottom body external diameter of pulling back match, described the first projection and distance between described the first groove equal the distance that described frustum type bump bottom ends is pulled back between a bottom described in extremely.
Preferably, the safety self-destructing syringe of described needle retractable, wherein, described injection tube and the described taper mesh structure that is formed in one, described taper mesh is located at one end of injection tube inwall and the close described push rod of described injection tube and described needle stand linkage section, and the outer, bottom of described taper mesh is connected with described injection tube.
Preferably, the safety self-destructing syringe of described needle retractable, wherein, taper type structure end face one side of described taper mesh is towards described needle stand, and described taper mesh taper type structure bottom surface is towards described push rod.
Preferably, the safety self-destructing syringe of described needle retractable, wherein, a bottom diameter of pulling back described in described taper mesh taper type structure end face diameter equals.
Preferably, the safety self-destructing syringe of described needle retractable, wherein, described in the head tube body interlude outer wall of pulling back be provided with the inclined-plane of supporting mutually with described needle stand inwall, described in the head of pulling back be embedded between described needle stand and described taper mesh.
Preferably, the safety self-destructing syringe of described needle retractable, wherein, described the first projection is around a described bottom tube wall and the symmetrically arranged a pair or more of projection of pulling back.
Preferably, the safety self-destructing syringe of described needle retractable, wherein, described push rod with described in extract bar and be formed in one, described push rod with described in extract bar joint and be " work " type structure, described " work " type structure place is socketed with rubber stopper.
Preferably, the safety self-destructing syringe of described needle retractable, wherein, extracts 1/4th places, bar one end described in described push rod is close and establishes annular groove.
Preferably, the safety self-destructing syringe of described needle retractable, wherein, described in the head tube body top inwall of pulling back be inverted cone-shaped structure, described in the head tube body leading portion of pulling back be also provided with blistered storage glue section in order to bonding described syringe needle.
Preferably, the safety self-destructing syringe of described needle retractable, wherein, described syringe is also provided with screw socket device, and described screw socket device card is located at the injection tube outer wall place of described injection tube and described needle stand linkage section.
The beneficial effect of the self-destruction syringe of the needle retractable that this utility model provides: 1) production cost is low: compare with the like product on market, processing cost is low, syringe needle used is identical with ordinary syringe syringe needle standard, syringe needle can interworking, and interchangeable sharing between 0.5mL, 1mL, 2mL, 3mL, 5mL, 10mL syringe needle; 2) easily be automated assembling, automated production can effectively reduce costs and control quality, on market, existing portioned product cannot carry out full-automation production, some product can only carry out semi-automation and produce, the self-destruction syringe of needle retractable described in the utility model only need ordinary syringe kludge slightly do transformation can realize, as for syringe needle, on common sticky pin machine, slightly make an amendment; 3) mold is produced: the production of the self-destruction syringe of described needle retractable can adopt mould to carry out production and processing, and minimum 32 caves of opening of each accessory, and production efficiency improves greatly; 4) establish screw socket device: low dose of 0.5mL, 1mL syringe are established screw socket device; 5) conic net aperture apparatus, the introducing of taper mesh can effectively reduce Principle of Pain, and taper grid and push rod do not have " assault " phenomenon when being engaged in percussion, due to the cushioning effect of taper mesh, make the unlikely human body that is injected into rapidly of medicine stream, improve patient's comfort; 6) accessory shares, and reduces costs, easy to control the quality: 0.5mL, 1mL, 2mL, 3mL, 5mL or 10mL, and except injection tube and push rod, shared no matter remaining part injection tube amount of capacity all can realize, thus reduce costs; 7) mechanism design, positive confinement: safety injector key is sealing, comprise forward end seal, back-end sealing, and production technology is easy to control, and existing portioned product complex manufacturing on market, requires very high, the even employing original seal circle having seals, but assembling difficulty strengthens, 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 lower than GB 30%, and advantage is outstanding compared with market like product; 9) seal protection: extract bar and near described needle stand one end, adopt the mode of sleeve pipe, described interior tube hub be hollow-core construction establish spill or the anti-vacuum tank of convex to improve sealing.
Accompanying drawing explanation
Fig. 1 is the self-destruction syringe overall structure schematic diagram of needle retractable described in the utility model;
Fig. 2 is the self-destruction syringe injection tube structural representation of needle retractable described in the utility model;
Fig. 3 is the self-disposable type inspirator push-rod structural representation of needle retractable described in the utility model;
Fig. 4 a is self-desttruction equipment wire frame structure schematic diagram in the self-destruction syringe of needle retractable described in the utility model;
Fig. 4 b is the local wire frame structure schematic diagram that amplifies of self-desttruction equipment in the self-destruction syringe of needle retractable described in the utility model;
Fig. 5 a is the header structure schematic diagram of pulling back in the self-destruction syringe of needle retractable described in the utility model;
Fig. 5 b is a wire frame structure schematic diagram of pulling back in the self-destruction syringe of needle retractable described in the utility model;
Fig. 6 is rubber plug structure schematic diagram in the self-destruction syringe of needle retractable described in the utility model;
Fig. 7 is screw socket apparatus structure schematic diagram in the self-destruction syringe of needle retractable described in the utility model;
Fig. 8 is needle stand structure schematic diagram in the self-destruction syringe of needle retractable described in the utility model;
Fig. 9 is helmet structural representation in the self-destruction syringe of needle retractable described in the utility model.
The specific embodiment
Below in conjunction with accompanying drawing, this utility model is described in further detail, to make those skilled in the art can implement according to this with reference to description word.
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4 a, Fig. 4 b, Fig. 5 a, Fig. 5 b, Fig. 6, Fig. 7, shown in Fig. 8 and Fig. 9, the safety self-destructing syringe of the needle retractable of its explanation this utility model one embodiment, the safety self-destructing syringe of described needle retractable, comprise injection tube 1, the push rod 2 that is positioned at described injection tube 1 and matches with described injection tube 1, be connected in the needle stand 3 of described injection tube 1 head and be fastened on the helmet 4 outside described needle stand 3, wherein, in described syringe, be also provided with safety self-destructing device, described safety self-destructing device comprises, pull back 5, the hollow tube structure that is shuttle type or " 1 " font, be positioned at described needle stand 3, bonded needle in a described 5 front end body of pulling back, a described bottom 5-1 inboard wall of tube body of pulling back is made as tapered structure, a bottom 5-1 pulls back described in described tapered structure bottom is, a described bottom 5-1 tube wall of pulling back is provided with the first protruding 5-2, taper mesh 6, the taper type through-hole structure of described taper mesh 6 for surrounding by grid, described taper mesh 6 is located at injection tube 1 inwall of described injection tube 1 and described needle stand 3 linkage sections, and described taper mesh 6 holes are along a bottom 5-1 that pulls back described in supporting, extract bar 9, be located at described push rod 2 front ends, the described bar 9 of extracting is comprised of hollow cylindrical outer tube and the tapered projection be located in described outer tube towards described needle stand 3 one end, described outer tube wall is provided with and described first groove that 5-1 tube wall the first protruding 5-2 in bottom matches of pulling back, described in extract height that bar 9 length are greater than described taper mesh 6 height for bottom 5-1 pyramidal structure body of pulling back described in adding, wherein, described tapered projection with described in a bottom 5-1 inboard wall of tube body structure of pulling back match, described outer tube diameter with described in a bottom 5-1 body external diameter of pulling back match, the distance between described the first protruding 5-2 and described the first groove equals the distance that described frustum type bump bottom ends is pulled back between a bottom 5-1 described in extremely.Described injection tube 1 and described taper mesh 6 structure that is formed in one, described taper mesh 6 is located at one end of injection tube 1 inwall and the close described push rod 2 of described injection tube 1 and described needle stand 3 linkage sections, and the outer, bottom of described taper mesh 6 is connected with described injection tube 1.Taper type structure end face one side of described taper mesh 6 is towards described needle stand 3, and described taper mesh 6 taper type structure bottom surfaces are towards described push rod 2.A bottom 5-1 diameter of pulling back described in described taper mesh 6 taper type structure end face diameters equal.A described 5 body stage casing 5-3 outer wall of pulling back are provided with the inclined-plane of supporting mutually with described needle stand 3 inwalls, described in pull back and 5 be embedded between described needle stand 3 and described taper mesh 6.Described the first protruding 5-2 is around a described bottom 5-1 tube wall and the symmetrically arranged a pair or more of projection of pulling back.Described push rod 2 with described in extract bar 9 and be formed in one, described push rod 2 with described in extract bar 9 joints and be " work " type structure, described " work " type structure place is socketed with rubber stopper 7.Described in described push rod 2 is close, extract 1/4th places, bar 9 one end and establish annular groove.Described annular groove be for when pull back 5 be drawn back into injection tube 1 interior after, described push rod 2 fractures from annular groove place, thereby reaches the object of dual self-destruction.A described 5 body top inwall of pulling back are inverted cone-shaped structure 5-4, described in a 5 body leading portion of pulling back be also provided with blistered storage glue section 5-5 in order to bonding described syringe needle.Described syringe is also provided with screw socket device 8, and described screw socket device 8 is arranged in the injection tube 1 outer wall place of described injection tube 1 and described needle stand 3 linkage sections.
During use, in the safety self-destructing syringe of described needle retractable, push rod 2 pushing and pressing medicinal liquids pull back 5 from injection tube 1 is interior in taper mesh enters needle stand 3, and 5 medicinal liquid is exported in patient body from syringe needle place by described pulling back, with push rod 2, compress downwards, bar 9 is extracted through described taper mesh 6 in described push rod 2 tops, and 5 bottom of pulling back described in entering, described tapered protrusion enters a 5 bottom body of pulling back, described in being wrapped in, described outer tube pulls back outside a 5 bottom body, because of described tapered protrusion with described in a 5 bottom inboard wall of tube body of pulling back match, described outer tube diameter with described in a 5 bottom body external diameter of pulling back match, therefore described in extract bar 9 with described in pull back and 5 form a state of combining closely, described the first protruding 5-2 enters described the first groove simultaneously, injection tube 1 inner liquid medicine is carried and is finished, self-desttruction equipment starts, the described push rod 2 of pulling back, described in extract and pull back 5 described in bar 9 drawstrings to the interior motion of 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 push rod 2 is fractureed at annular groove place, self-destruction finishes.
Although embodiment of the present utility model is open as above, but it is not restricted to listed utilization in description and embodiment, it can be applied to the various fields of the present utility model that are applicable to completely, for those skilled in the art, can easily realize other modification, therefore do not deviating under the general concept that claim and equivalency range limit, this utility model is not limited to specific details and illustrates here and the legend of describing.
Claims (10)
1. the safety self-destructing syringe of a needle retractable, comprise injection tube, be positioned at described injection tube and the push rod matching with described injection tube, be connected in the needle stand of described injection tube head and be fastened on the helmet outside described needle stand, it is characterized in that, in described syringe, be also provided with safety self-destructing device, described safety self-destructing device comprises
The head of pulling back, the hollow tube structure that is shuttle type or " 1 " font, be positioned at described needle stand, bonded needle in a described front end body of pulling back, a described bottom inboard wall of tube body of pulling back is made as tapered structure, a bottom of pulling back described in described tapered structure bottom is, described in a bottom tube wall of pulling back be provided with the first projection;
Taper mesh, described taper mesh is the taper type through-hole structure that surrounds by grid, described taper mesh is located at the injection tube inwall of described injection tube and described needle stand linkage section, a bottom of pulling back described in supporting, edge, described taper mesh hole;
Extract bar, be located at described push rod front end, the described bar of extracting is comprised of hollow cylindrical outer tube and the tapered projection be located in described outer tube towards described needle stand one end, described outer tube wall is provided with and described first groove that tube wall the first projection in bottom matches of pulling back, described in extract height that pole length is greater than a described taper mesh height for bottom pyramidal structure body of pulling back described in adding;
Wherein, described tapered projection with described in a bottom inboard wall of tube body structure of pulling back match, described outer tube diameter with described in a bottom body external diameter of pulling back match, described the first projection and distance between described the first groove equal the distance that described frustum type bump bottom ends is pulled back between a bottom described in extremely.
2. the safety self-destructing syringe of needle retractable according to claim 1, it is characterized in that, described injection tube and the described taper mesh structure that is formed in one, described taper mesh is located at one end of injection tube inwall and the close described push rod of described injection tube and described needle stand linkage section, and the outer, bottom of described taper mesh is connected with described injection tube.
3. the safety self-destructing syringe of needle retractable according to claim 2, is characterized in that, taper type structure end face one side of described taper mesh is towards described needle stand, and described taper mesh taper type structure bottom surface is towards described push rod.
4. the safety self-destructing syringe of needle retractable according to claim 3, is characterized in that, a bottom diameter of pulling back described in described taper mesh taper type structure end face diameter equals.
5. the safety self-destructing syringe of needle retractable according to claim 4, is characterized in that, described in the head tube body interlude outer wall of pulling back be provided with the inclined-plane of supporting mutually with described needle stand inwall, described in the head of pulling back be embedded between described needle stand and described taper mesh.
6. the safety self-destructing syringe of needle retractable according to claim 1, is characterized in that, described the first projection is around a described bottom tube wall and the symmetrically arranged a pair or more of projection of pulling back.
7. the safety self-destructing syringe of needle retractable according to claim 1, it is characterized in that, described push rod with described in extract bar and be formed in one, described push rod with described in extract bar joint and be " work " type structure, described " work " type structure place is socketed with rubber stopper.
8. the safety self-destructing syringe of needle retractable according to claim 7, is characterized in that, described push rod is established annular groove near extracting 1/4th places, bar one end.
9. the safety self-destructing syringe of needle retractable according to claim 1, is characterized in that, described in the head tube body top inwall of pulling back be inverted cone-shaped structure, described in the head tube body leading portion of pulling back be also provided with blistered storage glue section in order to bonding described syringe needle.
10. the safety self-destructing syringe of needle retractable according to claim 1, is characterized in that, described syringe is also provided with screw socket device, and described screw socket device card is located at the injection tube outer wall place of described injection tube and described needle stand linkage section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420147954.0U CN203885954U (en) | 2014-03-28 | 2014-03-28 | Self-destruction injector with retractable needle head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420147954.0U CN203885954U (en) | 2014-03-28 | 2014-03-28 | Self-destruction injector with retractable needle head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203885954U true CN203885954U (en) | 2014-10-22 |
Family
ID=51712409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420147954.0U Expired - Lifetime CN203885954U (en) | 2014-03-28 | 2014-03-28 | Self-destruction injector with retractable needle head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203885954U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103990206A (en) * | 2014-03-28 | 2014-08-20 | 顶一医疗设备（昆山）有限公司 | Auto-disable syringe with retractable syringe needle |
-
2014
- 2014-03-28 CN CN201420147954.0U patent/CN203885954U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103990206A (en) * | 2014-03-28 | 2014-08-20 | 顶一医疗设备（昆山）有限公司 | Auto-disable syringe with retractable syringe needle |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |