CN203263951U - Improved core bar structure of self-destructive injector - Google Patents
Improved core bar structure of self-destructive injector Download PDFInfo
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- CN203263951U CN203263951U CN 201320336806 CN201320336806U CN203263951U CN 203263951 U CN203263951 U CN 203263951U CN 201320336806 CN201320336806 CN 201320336806 CN 201320336806 U CN201320336806 U CN 201320336806U CN 203263951 U CN203263951 U CN 203263951U
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- Prior art keywords
- core bar
- main part
- improved
- core rod
- easy fracture
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Abstract
The utility model discloses an improved core bar structure of a self-destructive injector. The structure is formed by an outer core bar and an inner core bar, wherein the inner core bar is located in the front end of an inner hole of the outer core bar, the inner core bar is formed by a main body part and a spring seat plug connector which is located on the tail end of the main body part, and the main body part of the inner core bar and the outer core bar are formed integrally. According to the improved core bar structure disclosed by the utility model, the outer core bar and the main body part of the inner core bar are directly formed integrally, so that the structure is convenient to assemble, and meanwhile, the self-destruction of the injector in advance can be effectively avoided.
Description
Technical field
This utility model relates to self-destroyed syringe, particularly the core bar structure-improved of self-destroyed syringe.
Background technology
For the consideration of avoiding the medical hidden danger such as cross infection, self-destruction syringe is widely used.
At present, self-destruction syringe type on the market is a lot, wherein a kind of is to adopt inside and outside twin-core bar structure, this syringe is when self-destruction, connection constraints between internal core rod and outer core bar is removed and in the middle of the needle tip retracts on drive needle stand and needle stand under the effect of flexible member arrives the endoporus of outer core bar, is realized the self-destruction of syringe with this.
In above structure, described inside and outside core bar is the structure that split arranges, and both are independently processing separately, then carries out assembly and connection again.At present, being located by connecting between above inside and outside core bar is to realize by at least one annular projection of outer core bar endoporus head setting and the head interference fit of internal core rod.But the bad control of the value of interference fit of above annular projection, if the magnitude of interference is excessive, bring difficulty will for actual central assembling, resistance in the time of also can causing simultaneously internal core rod externally the core bar endoporus slides mutually is also larger, the power that promotes core bar when making the syringe self-destruction is also very large, has brought certain inconvenience for actual the use, if but the magnitude of interference of above annular projection is very few, inside and outside can causing again, the connection of core bar location is unstable, is easy to cause the self-destruction in advance of syringe.
The utility model content
For the problems referred to above, this utility model has designed a kind of core bar structure-improved of self-destroyed syringe, and the main part of its outer core bar and internal core rod is directly one-body molded, has not only facilitated assembling, can effectively avoid the self-destruction in advance of syringe simultaneously.
For the problems referred to above, this utility model is realized by the following technical solutions:
A kind of core bar structure-improved of self-destroyed syringe, consisted of by outer core bar and internal core rod, internal core rod is positioned at the endoporus front end of outer core bar, it is characterized in that: described internal core rod is made of main part and the spring base plug connector that is positioned the main part afterbody, and wherein internal core rod main part and outer core bar one generate.
Further, the head outer wall of above-mentioned internal core rod main part connects as one by easy fracture structure and outer core bar.
Further, above-mentioned easy fracture structure is the annular flange flange with the easy fracture line, and described annular flange flange is the thinnest at the thickness at easy fracture line place, and other parts of annular flange flange increase gradually with its thickness that departs from of easy fracture line position.
Further, above-mentioned easy fracture line is near outer core bar setting or near the setting of internal core rod main part or be set directly on annular flange flange.
Further, above-mentioned easy fracture structure is several connecting salient points with easy breakpoint, and described connecting salient points is minimum at the external diameter at easy breakpoint place, and other parts of connecting salient points increase gradually with its external diameter that departs from of easy breakpoint position.
Further, above-mentioned easy breakpoint is near outer core bar setting or near the setting of internal core rod main part or be set directly on connecting salient points.
Further, the main part afterbody of above-mentioned internal core rod is provided with connecting hole and is used for locating described spring base plug connector, and the circle end face installation one of spring base plug connector has the spring of pre compressed magnitude, and the top end face of spring holds mutually with the cervical region lower convex platform of outer core bar endoporus.
Further, the top of above-mentioned internal core rod main part is provided with the draw-in groove that can fasten with needle stand afterbody block tongue.
The main part of this utility model internal core rod and outer core bar one generate, both pass through single injection-molded work in-process, omitted being connected between inside and outside core bar in the assembling process, only needing that in when assembling spring is inserted in and installs the spring base plug connector from the afterbody of internal core rod main part gets final product, assemble easyly and quick, can greatly promote the packaging efficiency of core bar.
In addition, the head outer wall of described internal core rod main part connects as one by easy fracture structure and outer core bar.The structure setting of this easy fracture, realize on the one hand the integrative-structure setting between inside and outside core bar, guarantee the effective connection location before self-destruction between inside and outside core bar, fundamentally stopping the phenomenon that syringe shifts to an earlier date self-destruction occurs, guaranteed also that on the other hand syringe can realize normal self-destruction, medical personnel further promote effective separation that core bar can be realized inside and outside core bar a little again after injection is completed.
Description of drawings
Fig. 1, structural representation of the present utility model;
Fig. 2, this utility model easy fracture structure are the cross-sectional view of annular flange flange;
The partial enlarged drawing of A section in Fig. 3, this utility model Fig. 1;
The easy fracture line of Fig. 4, annular flange flange is near the partial enlarged drawing of outer core bar;
The easy fracture line of Fig. 5, annular flange flange is set directly at the partial enlarged drawing on annular flange flange;
Fig. 6, this utility model easy fracture structure are the structural representation of some connecting salient points;
Fig. 7, this utility model easy fracture structure are the cross-sectional view of some connecting salient points;
The local enlarged diagram of B section in Fig. 8, this utility model Fig. 6;
The easy breakpoint of Fig. 9, connecting salient points is near the cross-sectional view of internal core rod main part;
The easy breakpoint of Figure 10, connecting salient points is set directly at the cross-sectional view on connecting salient points.
The specific embodiment
As shown in Figure 1, a kind of core bar structure-improved of self-destroyed syringe is made of outer core bar 1 and internal core rod 2, and internal core rod 2 is positioned at endoporus 11 front ends of outer core bar 1.
Described internal core rod 2 is made of main part 21 and the spring base plug connector 22 that is positioned the main part afterbody, and wherein internal core rod main part 21 generates with outer core bar 1 one, and both pass through single injection-molded aborning.
The top of internal core rod main part 21 is provided with the draw-in groove 211 that can fasten with needle stand afterbody block tongue.The head outer wall of internal core rod main part 21 connects as one by easy fracture structure and outer core bar 1.
In the present embodiment, the easy fracture structure is the annular flange flange 3 with easy fracture line 31, and its structure is as shown in Fig. 2 and 3.At this, be to guarantee the effective fracture of easy fracture line 31 in the self-destruction process, 31 thickness is the thinnest at easy fracture line place for described annular flange flange 3, and other parts of annular flange flange 3 increase gradually with its thickness that departs from of easy fracture line 31 positions.In the present embodiment, the easy fracture line 31 of annular flange flange 3 arranges near internal core rod main part 21, and in practice, easy fracture line 31 also can arrange near outer core bar 1, and its structure or is set directly on annular projection 3 as shown in Figure 4, and its structure as shown in Figure 5.
The main part afterbody of described internal core rod 21 is provided with connecting hole 212 and is used for locating described spring base plug connector 22, the circle end face installation one of spring base plug connector 22 has the spring 4 of pre compressed magnitude, and the top end face of spring 4 holds mutually with the cervical region lower convex platform 111 of outer core bar endoporus 11.
In addition, as Fig. 6 and as shown in, be second embodiment of the present utility model, described easy fracture structure is several connecting salient points 5 with easy breakpoint 51, equally, for guaranteeing the effective fracture of easily broken knick point 51 in the self-destruction process, described connecting salient points 5 is minimum at the external diameter at easy breakpoint 51 places, and other parts of connecting salient points 5 increase gradually with its external diameter that departs from of easy breakpoint 51 positions.In the present embodiment, easily breakpoint 51 arranges near internal core rod main part 21, and its structure is as shown in Fig. 7 and 8, in practice, also easy breakpoint 51 can be arranged near outer core bar 1, its structure as shown in Figure 9, or easy breakpoint 51 is set directly on connecting salient points 5, its structure is as shown in figure 10.
The main part 21 of this utility model internal core rod 2 generates with outer core bar 1 one, both pass through single injection-molded work in-process, this integrative-structure arranges, omitted being connected between inside and outside core bar in the assembling process, only needing that in when assembling spring 4 is inserted in and installs spring base plug connector 22 from the afterbody of internal core rod main part 21 gets final product, assemble easyly and quick, can greatly promote the packaging efficiency of core bar.
In addition, the head outer wall of described internal core rod main part 21 connects as one by easy fracture structure and outer core bar 1.This easy fracture structure arranges, and the integrative-structure setting between the inside and outside core bar of realization on the one hand guarantees the effective connection location before self-destruction between inside and outside core bar, fundamentally stops the phenomenon generation that syringe shifts to an earlier date self-destruction; Guarantee also that on the other hand syringe can realize normal self-destruction, medical personnel further promote effective separation that core bar can be realized inside and outside core bar a little again after injection is completed.
The above, it is only better embodiment of the present utility model, be not that utility model is done any pro forma restriction, every foundation know-why of the present utility model still belongs in the scope of technical solutions of the utility model any simple modification made for any of the above embodiments, equivalent variations or modification.
Claims (8)
1. the core bar structure-improved of a self-destroyed syringe, consisted of by outer core bar and internal core rod, internal core rod is positioned at the endoporus front end of outer core bar, it is characterized in that: described internal core rod is made of main part and the spring base plug connector that is positioned the main part afterbody, and wherein internal core rod main part and outer core bar one generate.
2. core bar structure-improved as claimed in claim 1, it is characterized in that: the head outer wall of described internal core rod main part connects as one by easy fracture structure and outer core bar.
3. core bar structure-improved as claimed in claim 2, it is characterized in that: described easy fracture structure is the annular flange flange with the easy fracture line, described annular flange flange is the thinnest at the thickness at easy fracture line place, and other parts of annular flange flange increase gradually with its thickness that departs from of easy fracture line position.
4. core bar structure-improved as claimed in claim 3 is characterized in that: described easy fracture line is near outer core bar setting or near the setting of internal core rod main part or be set directly on annular flange flange.
5. core bar structure-improved as claimed in claim 2, it is characterized in that: described easy fracture structure is several connecting salient points with easy breakpoint, described connecting salient points is minimum at the external diameter at easy breakpoint place, and other parts of connecting salient points increase gradually with its external diameter that departs from of easy breakpoint position.
6. core bar structure-improved as claimed in claim 5 is characterized in that: described easy breakpoint is near outer core bar setting or near the setting of internal core rod main part or be set directly on connecting salient points.
7. the described core bar structure-improved of claim as arbitrary in claim 1-6, it is characterized in that: the main part afterbody of described internal core rod is provided with connecting hole and is used for locating described spring base plug connector, the circle end face installation one of spring base plug connector has the spring of pre compressed magnitude, and the top end face of spring holds mutually with the cervical region lower convex platform of outer core bar endoporus.
8. the described core bar structure-improved of claim as arbitrary in claim 1-6 is characterized in that: the top of described internal core rod main part is provided with the draw-in groove that can fasten with needle stand afterbody block tongue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320336806 CN203263951U (en) | 2013-06-13 | 2013-06-13 | Improved core bar structure of self-destructive injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320336806 CN203263951U (en) | 2013-06-13 | 2013-06-13 | Improved core bar structure of self-destructive injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203263951U true CN203263951U (en) | 2013-11-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320336806 Expired - Fee Related CN203263951U (en) | 2013-06-13 | 2013-06-13 | Improved core bar structure of self-destructive injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203263951U (en) |
-
2013
- 2013-06-13 CN CN 201320336806 patent/CN203263951U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20190613 |