CN2810631Y - Disposable self-destruction syringe - Google Patents
Disposable self-destruction syringe Download PDFInfo
- Publication number
- CN2810631Y CN2810631Y CN 200520000451 CN200520000451U CN2810631Y CN 2810631 Y CN2810631 Y CN 2810631Y CN 200520000451 CN200520000451 CN 200520000451 CN 200520000451 U CN200520000451 U CN 200520000451U CN 2810631 Y CN2810631 Y CN 2810631Y
- Authority
- CN
- China
- Prior art keywords
- push rod
- overcoat
- spine
- disposable use
- use 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 - Fee Related
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a disposable self-destruction syringe which comprises an outer sleeve and a push rod arranged in the outer sleeve, wherein a liquid outlet of the outer sleeve is provided with a columnar spine, the front part of the push rod is hollow to form an inner cavity, an outer circle is provided with a ventilation hole and is provided with the top end of the push rod an end plug for sealing the inner cavity of the push rod. In the utility model, the end plug is separated from the push rod, after the end plug is butted in the inner cavity of the push rod, an inner cavity of the outer sleeve is communicated with the outside world through the inner cavity of the push rod and the ventilation hole and thus the purpose of the self destruction of the syringe is realized. The utility model has the advantages of no change of the structure of the syringe, easy mould processing and low cost and is favorable to popularization and use.
Description
Technical field
This utility model relates to syringe, particularly relates to a kind of self-destroyed syringe simple in structure, with low cost, disposable.
Background technology
At present, when disposable syringe uses some focal pointes, there is the problem of not unmaking after using, the reusable possibility of the society of inflow is so just arranged.For addressing this problem, people also develop the syringe of some easy breaking types in recent years, and these syringes all are by some devices are set, and its destruction can not be reused after making syringe use.Such as a kind of " puncture type self-destroyed syringe ", its patent No. is ZL99247769.7, has point protruding at the back cover place of syringe jacket, push-rod piston has recessed thin-walled with the protruding corresponding position of point, after injection was finished, tip thorn broke thin-walled, and syringe can not reuse; But the syringe of this structure, the piston thin-walled that is punctured has the hidden danger of auto-closing, and it may be reused.
Present existing self-destroyed syringe, or because of its complex structure, mould manufacturing difficulty, or too high because of its cost, therefore all do not promoted widely.
The innovation and creation content
The purpose of this utility model provides a kind of simple in structure, with low cost, disposable use self-destroyed syringe of being beneficial to popularization.
For achieving the above object, this utility model is taked technical scheme: a kind of disposable use self-destroyed syringe, and it includes an overcoat and is arranged on the interior push rod of described overcoat, and the liquid outlet place in the described overcoat is provided with a column spine; The anterior hollow of described push rod forms an inner chamber, and is provided with a passage on cylindrical, and the top of described push rod is provided with the obstruction of a sealing push rod inner chamber.
In the above-mentioned disposable use self-destroyed syringe, the outer wall place of described push rod front end is provided with piston; The vertical internal diameter of described push rod is less than the internal diameter of push rod inner chamber.
In the above-mentioned disposable use self-destroyed syringe, described column spine is arranged on the liquid outlet place in the described overcoat, and the direction of its spine is pointed to the obstruction of described push rod front end; Described column spine is provided with the hole that is communicated with overcoat inner chamber and liquid outlet.
In the above-mentioned disposable use self-destroyed syringe, described obstruction is cylindric, and it tightly fills in the top end in push rod.
In the above-mentioned disposable use self-destroyed syringe, the end of described push rod is provided with the thrust plate that thumb press is used, and described overcoat end is provided with the wing plate that fingerhold is used, and the end of described push rod cylindrical is provided with a limited block.
In the above-mentioned disposable use self-destroyed syringe, the vertical internal diameter of described push rod is more than or equal to the maximum gauge of described column spine.
This utility model is owing to take above design, it has the following advantages: 1, in this utility model, stop up with push rod and carry out the split design, after obstruction is headed into the inner chamber of push rod, the inner chamber that makes overcoat is in communication with the outside by the inner chamber and the passage of push rod, thereby realizes the self-destruction purpose of syringe.2, this utility model does not change the structure of syringe, is easy to processing mold, is easy to realize.3, this utility model is simple in structure, and is easy to processing mold, so it is with low cost, very helps promoting the use of.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Fig. 2 is a local enlarged diagram of the present utility model
The specific embodiment
As shown in Figure 1 and Figure 2, be a kind of disposable use self-destroyed syringe that this utility model provides, it includes an overcoat 1 and is arranged on a push rod 2 in the overcoat 1.
Liquid outlet 11 places in the overcoat 1 are provided with a column spine 12; The anterior hollow of push rod 2 is formed with inner chamber 3, and is provided with a passage 21 on cylindrical, makes push rod 2 inner chambers and the extraneous connected state that forms by passage 21 is set; The top of push rod 2 is provided with one and stops up 22, stops up 22 and is cylindric, and it tightly fills in the top end in push rod 2, and the effect that the inner chamber 3 with push rod 2 seals is played in obstruction 22, and push rod 2 vertical internal diameters are less than the internal diameter (as shown in Figure 2) of push rod inner chamber 3; In addition, the outer wall place of push rod 2 front ends is provided with piston 23, and piston 23 is set in the front end of push rod 2, and it is the rubber-like rubber, forms with the inner chamber of overcoat 1 to closely cooperate, and by moving forward and backward of push rod 2, can aspirate or inject liquid.
In the foregoing description, column spine 12 is arranged on liquid outlet 11 places in the overcoat 1, and the direction of its spine is pointed to the obstruction 22 of push rod 2 front ends; Column spine 12 is provided with the hole 13 that is communicated with overcoat 1 inner chamber and liquid outlet 11, like this, the medicinal liquid of injection can flow out by hole 13, and the maximum gauge of column spine 12 generally is not more than the internal diameter of push rod 2 front ends, and promptly the internal diameter of push rod 2 front ends is more than or equal to the maximum gauge of column spine 12.In addition, the end of push rod 2 also is provided with the thrust plate 24 that thumb press is used, and overcoat 1 end is provided with the wing plate 14 that fingerhold is used.For fear of the maloperation before injection, syringe is destroyed in advance, also special end at inner core 2 cylindricals is provided with a limited block 25; Limited block 25 is removed when syringe uses, specifically, after suction injection, aerofluxus finish, limited block is got rid of exactly, injects then.
This utility model when in use, can the same injection of carrying out medicinal liquid with common syringe, when injection finishes, it is the top that push rod 2 is pressed onto piston 23 in overcoat 1, at this moment, column spine 12 just will stop up 22 and push up among the inner chamber 3 of push rod 2, because the internal diameter of the inner chamber of push rod 2 is greater than push rod 2 vertical internal diameters, so stop up 22 effects that just can not continue to play sealing, the inner chamber of overcoat 1 and inner chamber 3 and passage 21 by push rod 2 are in communication with the outside, like this, this syringe just can not reuse.
Claims (10)
1, a kind of disposable use self-destroyed syringe, it includes an overcoat and is arranged on the interior push rod of described overcoat, it is characterized in that:
Liquid outlet place in the described overcoat is provided with a column spine;
The anterior hollow of described push rod forms an inner chamber, and is provided with a passage on cylindrical, and the top of described push rod is provided with the obstruction of a sealing push rod inner chamber.
2, disposable use self-destroyed syringe according to claim 1, it is characterized in that: the outer wall place of described push rod front end is provided with piston; The vertical internal diameter of described push rod is less than the internal diameter of push rod inner chamber.
3, disposable use self-destroyed syringe according to claim 1 is characterized in that: described column spine is arranged on the liquid outlet place in the described overcoat, and the direction of its spine is pointed to the obstruction of described push rod front end; Described column spine is provided with the hole that is communicated with overcoat inner chamber and liquid outlet.
4, disposable use self-destroyed syringe according to claim 2 is characterized in that: described column spine is arranged on the liquid outlet place in the described overcoat, and the direction of its spine is pointed to the obstruction of described push rod front end; Described column spine is provided with the hole that is communicated with overcoat inner chamber and liquid outlet.
5, according to claim 1 or 2 or 3 or 4 described self-destroyed syringes, it is characterized in that: described obstruction is cylindric, and it tightly fills in the top end in push rod.
6, according to claim 1 or 2 or 3 or 4 described disposable use self-destroyed syringes, it is characterized in that: the end of described push rod is provided with the thrust plate that thumb press is used, described overcoat end is provided with the wing plate that fingerhold is used, and the end of described push rod cylindrical is provided with a limited block.
7, disposable use self-destroyed syringe according to claim 5, it is characterized in that: the end of described push rod is provided with the thrust plate that thumb press is used, described overcoat end is provided with the wing plate that fingerhold is used, and the end of described push rod cylindrical is provided with a limited block.
8, according to claim 1 or 2 or 3 or 4 or 7 described disposable use self-destroyed syringes, it is characterized in that: the vertical internal diameter of described push rod, more than or equal to the maximum gauge of described column spine.
9, disposable use self-destroyed syringe according to claim 5 is characterized in that: the vertical internal diameter of described push rod, and more than or equal to the maximum gauge of described column spine.
10, disposable use self-destroyed syringe according to claim 6 is characterized in that: the vertical internal diameter of described push rod, and more than or equal to the maximum gauge of described column spine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520000451 CN2810631Y (en) | 2005-02-06 | 2005-02-06 | Disposable self-destruction syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520000451 CN2810631Y (en) | 2005-02-06 | 2005-02-06 | Disposable self-destruction syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2810631Y true CN2810631Y (en) | 2006-08-30 |
Family
ID=36937017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520000451 Expired - Fee Related CN2810631Y (en) | 2005-02-06 | 2005-02-06 | Disposable self-destruction syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2810631Y (en) |
-
2005
- 2005-02-06 CN CN 200520000451 patent/CN2810631Y/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 |
Granted publication date: 20060830 Termination date: 20130206 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |