CN204106762U - The needle stand location structure of safe self-breaking syringe - Google Patents
The needle stand location structure of safe self-breaking syringe Download PDFInfo
- Publication number
- CN204106762U CN204106762U CN201420229038.1U CN201420229038U CN204106762U CN 204106762 U CN204106762 U CN 204106762U CN 201420229038 U CN201420229038 U CN 201420229038U CN 204106762 U CN204106762 U CN 204106762U
- Authority
- CN
- China
- Prior art keywords
- syringe
- needle stand
- shelves bar
- location structure
- endoporus
- 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
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 206010011409 Cross infection Diseases 0.000 description 1
- 206010029803 Nosocomial infection Diseases 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a kind of needle stand location structure of safe self-breaking syringe, comprise syringe and be equipped with the needle stand in syringe endoporus front end, described syringe endoporus front portion is at least provided with support shelves bar for support needle stand integrated with syringe together, and each support shelves bar is at least provided with an easy breakpoint.The needle stand location structure of this utility model design, it can realize the absolute fix of needle stand, stops the generation that needle stand inside contracts phenomenon in advance.
Description
Technical field
This utility model relates to a kind of safe self-breaking syringe, is specially the needle stand location structure of safe self-breaking syringe.
Background technology
For the consideration avoiding the medical hidden danger such as cross infection, self-destruction syringe is widely used.At present, self-destruction syringe type is on the market a lot, wherein its needle stand of a kind of syringe is positioned at syringe endoporus front end by the mode of interference fit, at this, because of the impact by machining accuracy, the more difficult assurance of value of interference fit between above needle stand and syringe inner core, if the magnitude of interference is too large, the resistance of pulling back of needle stand can be caused excessive, very big inconvenience is brought to practical operation, if the magnitude of interference very little, then have a strong impact on locating effect and the sealing effectiveness of needle stand, inside contracting in advance of needle stand easily occurs in injection moulding process and reveals with medicinal liquid.
Utility model content
For the problems referred to above, this utility model devises a kind of needle stand location structure of safe self-breaking syringe, and it can realize the absolute fix of needle stand, stops the generation that needle stand inside contracts phenomenon in advance.
For achieving the above object, this utility model is by the following technical solutions:
A kind of needle stand location structure of safe self-breaking syringe, comprise syringe and be equipped with the needle stand in syringe endoporus front end, it is characterized in that: described syringe endoporus front portion is at least provided with support shelves bar for support needle stand integrated with syringe together, and each support shelves bar is at least provided with an easy breakpoint.
Further, above-mentioned syringe is made up of the syringe head and straight-tube shape stack shell installing needle stand, syringe head lower end arranges annular projection and coordinates with straight-tube shape stack shell upper shed interference seal, and syringe head endoporus is installed with needle stand, arranges described support shelves bar in the upper shed of straight-tube shape stack shell.
Further, the endoporus top of above-mentioned needle stand is provided with needle point, and the endoporus bottom of needle stand is provided with connection draw-in groove, and this connection draw-in groove can be connected together with the connection block tongue of piston club head after injector to inject.
Further, above-mentioned support shelves bar is strip shape body or flat piece.
Further, above-mentioned support shelves bar is linear type or flexure type.
The support shelves bar that this utility model is arranged by syringe endoporus front portion provides effective support for needle stand, effectively can reduce the quality of fit requirement of needle stand and syringe, reduce the resistance of pulling back in needle stand self-destruction process, above support shelves bar structure can realize the absolute fix of needle stand simultaneously, for injector to inject provides enough support forces, stop needle stand and inside contract phenomenon generation in advance, ensure the normal use of syringe.
Complete at injector to inject, when promoting core bar further and making the block tongue of its head enter needle stand endoporus connection draw-in groove, the shoulder of core bar will touch and supports shelves bar and make its dilatating and deformable until from easy breakpoint fracture, now, support shelves bar to remove the position constraint of needle stand, needle stand and needle point just can enter into the endoporus of syringe with pulling back of core bar, realize the self-destruction of syringe.
Accompanying drawing explanation
Fig. 1, structural representation of the present utility model;
Fig. 2, this utility model support the schematic layout pattern of shelves bar.
Detailed description of the invention
As shown in Figure 1, a kind of needle stand location structure of safe self-breaking syringe, the needle stand 2 comprising syringe 1 and be equipped with in syringe endoporus front end, described syringe 1 endoporus front portion is at least provided with support shelves bar 3 for support needle stand 2 integrated with syringe together, each support shelves bar 3 is at least provided with an easy breakpoint 31.
More than support strip shape body, flat piece that shelves bar 3 can be linear type or flexure type, in the present embodiment, the linear type strip shape body that it adopts two to be set up in parallel supports shelves bar 3, its structure as shown in Figure 2, in actual use, the support shelves bar 3 of one or more of the same type or other types structure can be set as required, will not enumerate at this.
Generate with syringe 1 one because supporting shelves bar 3, for ensureing the normal mounting of needle stand 2, described syringe 1 is made up of the syringe head 11 and straight-tube shape stack shell 12 installing needle stand 2, syringe head 11 lower end arranges annular projection 111 and coordinates with straight-tube shape stack shell 12 upper shed interference seal, syringe head 11 endoporus is installed with needle stand 2, arranges described support shelves bar 3 in straight-tube shape stack shell 12 upper shed.
The endoporus top of described needle stand 2 is installed with needle point 4, and the endoporus bottom of needle stand 2 is provided with and connects draw-in groove 21, and this connection draw-in groove 21 can be connected together with the connection block tongue 51 of syringe core rod 5 head after injector to inject.
When assembling, first the needle stand 2 of band needle point 4 is assembled in the endoporus of syringe head 11 from the bottom up, afterwards both assemblys are inserted into the upper shed of syringe stack shell 12, the annular projection 111 of syringe head 11 is coordinated with the upper shed interference seal of stack shell 12, makes the lower end of needle stand 2 and support shelves bar 3 and offset to be formed and effectively support.
The support shelves bar 3 that this utility model is arranged by syringe 1 endoporus front portion provides effective support for needle stand 2, effectively can reduce the quality of fit requirement of needle stand 2 and syringe 1, reduce the resistance of pulling back in needle stand 2 self-destruction process, above support shelves bar 3 structure can realize the absolute fix of needle stand 2 simultaneously, for injector to inject provides enough support forces, stop needle stand 2 and inside contract phenomenon generation in advance, ensure the normal use of syringe.
Complete at injector to inject, when promoting core bar 5 further and making the connection block tongue 51 of its head enter needle stand 2 endoporus connection draw-in groove 21, the shoulder 52 of core bar 5 will touch and supports shelves bar 3 and make its dilatating and deformable until rupture from easy breakpoint 31, now, the position constraint supporting shelves bar 3 pairs of needle stands is removed, needle stand 2 and needle point 4 just can enter into the endoporus of syringe 1 with pulling back of core bar 5, realize the self-destruction of syringe.
The above, it is only better embodiment of the present utility model, not any pro forma restriction is done to utility model, every according to know-why of the present utility model to any simple modification made for any of the above embodiments, equivalent variations or modification, still belong in the scope of technical solutions of the utility model.
Claims (4)
1. the needle stand location structure of a safe self-breaking syringe, comprise syringe and be equipped with the needle stand in syringe endoporus front end, it is characterized in that: described syringe endoporus front portion is at least provided with support shelves bar for support needle stand integrated with syringe together, and each support shelves bar is at least provided with an easy breakpoint; Described syringe is made up of the syringe head and straight-tube shape stack shell installing needle stand, syringe head lower end arranges annular projection and coordinates with straight-tube shape stack shell upper shed interference seal, syringe head endoporus is installed with needle stand, arranges described support shelves bar in the upper shed of straight-tube shape stack shell.
2. the needle stand location structure of safe self-breaking syringe as claimed in claim 1, it is characterized in that: the endoporus top of described needle stand is provided with needle point, the endoporus bottom of needle stand is provided with connection draw-in groove, and this connection draw-in groove can be connected together with the connection block tongue of piston club head after injector to inject.
3. the needle stand location structure of the safe self-breaking syringe as described in claim as arbitrary in claim 1-2, is characterized in that: described support shelves bar is strip shape body or flat piece.
4. the needle stand location structure of safe self-breaking syringe as claimed in claim 3, is characterized in that: described support shelves bar is linear type or flexure type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420229038.1U CN204106762U (en) | 2014-05-07 | 2014-05-07 | The needle stand location structure of safe self-breaking syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420229038.1U CN204106762U (en) | 2014-05-07 | 2014-05-07 | The needle stand location structure of safe self-breaking syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204106762U true CN204106762U (en) | 2015-01-21 |
Family
ID=52324127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420229038.1U Expired - Lifetime CN204106762U (en) | 2014-05-07 | 2014-05-07 | The needle stand location structure of safe self-breaking syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204106762U (en) |
-
2014
- 2014-05-07 CN CN201420229038.1U patent/CN204106762U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |