CN203139288U - Improved disposable self-destroying injector - Google Patents
Improved disposable self-destroying injector Download PDFInfo
- Publication number
- CN203139288U CN203139288U CN 201320076371 CN201320076371U CN203139288U CN 203139288 U CN203139288 U CN 203139288U CN 201320076371 CN201320076371 CN 201320076371 CN 201320076371 U CN201320076371 U CN 201320076371U CN 203139288 U CN203139288 U CN 203139288U
- Authority
- CN
- China
- Prior art keywords
- syringe
- injection putter
- latch
- self
- needle cylinder
- 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
Images
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to an improved disposable self-destroying injector, which comprises a needle head, a hollow needle cylinder and an injection pushrod, wherein a needle head plug is arranged at the front end of the needle cylinder, and a rear needle cylinder seat is arranged at the rear end of the needle cylinder; and a sealing rubber stopper is arranged at the front end of the injection pushrod, and is sleeved and inserted in the needle cylinder. The improved disposable self-destroying injector is characterized in that step grooves are formed in the inner wall of the rear needle cylinder seat, and clamping teeth are correspondingly arranged on the rear part of the injection pushrod, and are buckled and locked with the step grooves when the injection pushrod completely enters the needle cylinder. The self-destroying injector with such a design is high in integral rigidity, firm, durable and high in safety; safety discs are simple and practical in design and easy to operate, and misoperation can be effectively prevented; the production cost is low; and after being used, the injector is firm in locking and high in reliability, and cannot be loosened.
Description
Technical field
This utility model relates to technical field of medical, particularly can prevent reusable disposable syringe.
Background technology
At present, the disposable medical syringe is widely-used, and its version has various.As the disclosed technical scheme of Chinese patent 200320131140.X, structures such as its self-lock rod and push rod are complicated, and the molding difficulty is big, need to use device for ultrasonic welding could connect molding, the cumbersome complexity of relative production technology causes production cost higher relatively.For reducing the cost, be necessary the structure of syringe locking is improved.
The utility model content
The purpose of this utility model is the weak point that overcomes above-mentioned conventional art, proposes a kind of improved Disposable, self-destroying syringe, simplifies latch-up structure, has not only guaranteed that security reliability simplifies moulding process not only but also reduce production costs.
The purpose of this utility model is achieved by the following technical solution: improved Disposable, self-destroying syringe, include syringe needle, hollow syringe, injection putter, the syringe front end is that syringe needle plug, back end of syringe are the syringe back seat, the caulking gum bolt is housed the front end of injection putter and cover inserts in the syringe, it is characterized in that: the inwall of syringe back seat is formed with step trough, and the rear portion correspondence of injection putter is provided with latch, and described latch is when injection putter enters in the syringe fully and described step trough snap-lock.Further, oblique outer the opening of described latch is the shell fragment shape, and latch can be subjected to the step trough extruding and be out of shape.Described latch is the 2-6 sheet, all is symmetrically arranged in the injection putter rear portion.Also be provided with in the injection putter rearward end and prevent that the latch maloperation from entering the safety disc in the step trough, the rear end of safety disc is connected with the injection putter aft terminal, the front end of safety disc then props up the end face of syringe back seat
She Ji structure has tangible advantage: 1, adopt the lock mode of step trough and latch snapping, exquisiteness simple for structure like this; 2, integral rigidity intensity is good, firm and durable, and safety is good; 3, safety disc simplicity of design practicality, easy operating can effectively prevent maloperation; 4, molding component is simply easy, and production cost is low; 5, syringe uses the back locking firmly, can be anti-not loose, and the reliability height.
Description of drawings
Fig. 1 is the structural representation that this utility model is not used state;
Fig. 2 is this utility model structural representation of user mode;
Fig. 3 is the partition sketch map of this utility model syringe and injection putter.
Description of reference numerals: 1. syringe needle 2. syringes 3. injection putters 4. caulking gum bolts 5. syringe plugs 6. syringe back seats 7. safety discs 8. step troughs 9. latches 10. junction points.
The specific embodiment
Referring to Fig. 1-Fig. 3, the Disposable, self-destroying syringe of present embodiment mainly is made up of syringe 2, the injection putter 3 of syringe needle 1, hollow, and wherein, syringe 2 front ends are that syringe needle plug 5, syringe 2 rear ends are syringe back seat 6, and injection pushes away 3 front end caulking gum bolt 4 is housed.Special design is, the inwall of syringe back seat 6 is formed with step trough 8, the cross section indention of step trough 8, and the rear portion correspondence of injection putter 3 is provided with latch 9, totally two of latches 9, be symmetrically arranged in injection putter 3 rear portions, and the oblique outer shell fragment shape that opens, is of the form of described latch 9, has certain elastic deformation, like this, latch 9 can be subjected to step trough 8 extruding and be out of shape, and when making latch 9 injection putter 3 enters syringe 2 fully in and described step trough 8 snap-lock, injection putter 3 can't be withdrawed from along opposite direction.
For preventing that careless maloperation from pushing locking in the step trough 8 with latch 9, also be provided with safety disc 7 in injection putter 3 rearward end, the aft terminal of safety disc 7 is connected safety disc 7 with the junction point 10 of injection putter 3 rear ends front end then props up the end face of syringe back seat 6.Under the situation that safety disc 7 exists, injection putter 3 is spacing by safety disc 7 fixed points, can't fully enter in the syringe 2, is stuck at the end face of syringe back seat 6.Before using syringe, firmly disconnect earlier the aft terminal of safety disc 7 and the junction point 10 of injection putter 3 rear ends, remove safety disc 7, then the spacing of injection putter 3 is disengaged, in case injection putter 3 is pushed away fully to the greatest extent to syringe 2, latch 9 just locks with step trough 8 snappings, injection putter 3 can't oppositely be extracted out again, thereby make syringe complete failure.In fact, the quantity of latch 9 can make four, six or eight, distributes symmetrically and evenly, can select as the case may be, as long as can be effectively and step trough 8 snap lock of syringe back seat 6.
Certainly, only enumerated some preferred implementation here, the protection category that other is equal to, structure roughly the same all should belong to this patent repeats no more here.
Claims (4)
1. improved Disposable, self-destroying syringe, include syringe needle, hollow syringe, injection putter, the syringe front end is that syringe needle plug, back end of syringe are the syringe back seat, the caulking gum bolt is housed the front end of injection putter and cover inserts in the syringe, it is characterized in that: the inwall of syringe back seat is formed with step trough, and the rear portion correspondence of injection putter is provided with latch, and described latch is when injection putter enters in the syringe fully and described step trough snap-lock.
2. self-destroyed syringe according to claim 1 and 2 is characterized in that oblique outer the opening of described latch is the shell fragment shape, and latch can be subjected to the step trough extruding and be out of shape.
3. self-destroyed syringe according to claim 1 and 2 is characterized in that described latch is the 2-6 sheet, all is symmetrically arranged in the injection putter rear portion.
According to claim 12 or 3 or described self-destruction annotate device, it is characterized in that also being provided with in the injection putter rearward end and prevent that the latch maloperation from entering the safety disc in the step trough, the rear end of safety disc is connected with the injection putter aft terminal, the front end of safety disc then props up the end face of syringe back seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320076371 CN203139288U (en) | 2013-01-31 | 2013-01-31 | Improved disposable self-destroying injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320076371 CN203139288U (en) | 2013-01-31 | 2013-01-31 | Improved disposable self-destroying injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203139288U true CN203139288U (en) | 2013-08-21 |
Family
ID=48966850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320076371 Expired - Fee Related CN203139288U (en) | 2013-01-31 | 2013-01-31 | Improved disposable self-destroying injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203139288U (en) |
-
2013
- 2013-01-31 CN CN 201320076371 patent/CN203139288U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5095914A (en) | Blood extraction device with one-way piston movement | |
| WO2016173384A1 (en) | Insulin injection needle with needle tip protection function | |
| CN104771814A (en) | Disposable safe insulin injection needle head | |
| CN104771813A (en) | Disposable safe insulin injection needle head | |
| WO2007065324A1 (en) | A disposable safety syringe | |
| CN203139288U (en) | Improved disposable self-destroying injector | |
| CN100579600C (en) | Safe self-destroyed syringe with greater force for preventing needle from withdrawing | |
| CN205007385U (en) | Disposable safe insulin injection needle | |
| CN204745212U (en) | Safety syringe | |
| CN209771024U (en) | Low-residue safe self-destruction syringe | |
| CN203861706U (en) | Two-piece type self-destroying injector | |
| CN101628139B (en) | Lock structure of safety self-destruction injector | |
| CN102940920B (en) | Mixing pre-filled and sealed injector | |
| CN203539813U (en) | Wedging low-resistance back pulling type self-destruction syringe | |
| CN201257202Y (en) | Small dose screw syringe | |
| WO2010066094A1 (en) | Single-use syringe | |
| CN201370854Y (en) | Self-destroying safety injector | |
| CN219941461U (en) | Injection device capable of preventing push rod from falling off | |
| CN202459662U (en) | Secondary separation type safe self-destruction syringe | |
| US8808239B2 (en) | Syringe | |
| CN201324420Y (en) | Disposable injector | |
| CN204147371U (en) | A kind of retracting type self-destroyed syringe | |
| CN201643212U (en) | Self-destruction type disposable syringe | |
| CN201643259U (en) | Safety self-destruction type injector | |
| CN102553036A (en) | Two-stage separate type safe self-destruction syringe |
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: 20130821 Termination date: 20150131 |
|
| EXPY | Termination of patent right or utility model |