CN2582628Y - Disposable syringe - Google Patents
Disposable syringe Download PDFInfo
- Publication number
- CN2582628Y CN2582628Y CN 02244992 CN02244992U CN2582628Y CN 2582628 Y CN2582628 Y CN 2582628Y CN 02244992 CN02244992 CN 02244992 CN 02244992 U CN02244992 U CN 02244992U CN 2582628 Y CN2582628 Y CN 2582628Y
- Authority
- CN
- China
- Prior art keywords
- pull rod
- pulling back
- piston push
- piston
- 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 - Fee Related
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/50—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
- A61M5/5013—Means for blocking the piston or the fluid passageway to prevent illegal refilling of a syringe
- A61M5/502—Means for blocking the piston or the fluid passageway to prevent illegal refilling of a syringe for blocking the piston
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/50—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
- A61M5/5013—Means for blocking the piston or the fluid passageway to prevent illegal refilling of a syringe
- A61M5/502—Means for blocking the piston or the fluid passageway to prevent illegal refilling of a syringe for blocking the piston
- A61M2005/5026—Means for blocking the piston or the fluid passageway to prevent illegal refilling of a syringe for blocking the piston allowing single filling of syringe
Landscapes
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to an anti-pulling back disposable syringe, which comprises an injection cylinder, a piston and a push-pull rod of the piston and is characterized in that a hard plug type anti-pulling back device is arranged between the injection cylinder and the push-pull rod of the piston. The utility model has the advantages of simple structure, easy manufacture, cheap price, easy use, etc. The utility model can realize one-time usage for true significance, and cross infection of virus is completely avoided.
Description
(1), affiliated technical field
This utility model relates to a kind of medical apparatus and instruments, and particularly a kind of disposable notes thank to device.
(2), technical background
Existing disposable notes are thanked to device and generally are made up of syringe, piston and piston push-pull rod.Because the inwall of the injection tube of this syringe is complete flatness with piston push-pull rod and is connected, cause piston push-pull rod in notes thank to tube, can repeatedly fully move around, thereby can not realize truly disposable use, so, some lawless persons in the society are reclaimed it, after simple process, come into the market again, certainly will increase the chance of disease propagation, particularly those drug addicts or illegal practice of medicine person, they utilize these syringes repeatedly to use each other, cause the infection of pathogenic bacteria, or even the infection of hepatitis B virus and HIV (human immunodeficiency virus), increased social harm.
(3), summary of the invention
The purpose of this utility model just provide a kind of simple in structure, make and the anti-disposable syringe of pulling back easy to use easily, it can only disposablely be injected, and avoids the infection of virus.
The purpose of this utility model is to realize by such technical scheme, and it includes to annotate thanks tube, piston and piston push-pull rod, it is characterized in that: be provided with the anti-withdrawing device of hard plug formula between injection tube and piston push-pull rod.Different with existing syringe is, piston push-pull rod of the present utility model is shorter, to such an extent as to can be by the anti-withdrawing device of hard plug formula with injection tube and piston push-pull rod jam-pack and spacing each other.This utility model is work like this: the nurse is when injecting to patient, in case all inject in the patient body injection tube inner liquid medicine, the anti-withdrawing device of hard plug formula is inevitable injection tube and piston push-pull rod jam-pack and spacing each other, piston push-pull rod can not be pulled back, thereby realize disposable use truly.When the nurse carries out preparating liquid with this utility model, sucking or releasing in the medicinal liquid process, the anti-withdrawing device of plug formula is not had an effect firmly, and piston push-pull rod still can move around in injection tube, does not influence the original normal running of nurse.
Owing to adopted technique scheme, the utlity model has have simple in structure, easy manufacturing, low price and advantage such as easy to use, it can realize disposable use truly, has avoided viral cross infection fully.
(4), description of drawings
Description of drawings of the present utility model is as follows:
Fig. 1 is the structural representation of first kind of embodiment of this utility model;
Fig. 2 is the structural representation of second kind of embodiment of this utility model.
Among the figure: 1. injection tube; 2. piston; 3. piston push-pull rod; 4. the anti-arcuation annular groove of pulling back; 5. push away handle; 6. the anti-arcuation ring platform of pulling back.
(5), the specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
Shown in Fig. 1 or 2, this utility model includes to annotate thanks tube 1, piston 2 and piston push-pull rod 3, it is characterized in that: be provided with the anti-withdrawing device of hard plug formula between injection tube 1 and piston push-pull rod 3.This utility model is work like this: the nurse is when injecting to patient, in case all inject in the patient body injection tube 1 inner liquid medicine, the anti-withdrawing device of hard plug formula is inevitable injection tube 1 and piston push-pull rod 3 jam-pack and spacing each other, piston push-pull rod 3 can not be pulled back, thereby realize disposable use truly.When the nurse carries out preparating liquid with this utility model, sucking or releasing in the medicinal liquid process, the anti-withdrawing device of plug formula is not had an effect firmly, and piston push-pull rod 3 still can move around in injection tube, does not influence the original normal running of nurse.
As shown in Figure 1, the anti-withdrawing device of plug formula can be to be arranged to the anti-arcuation annular groove 4 of pulling back at injection tube 1 rear end inwall firmly, and handle 5 edges that push away at piston push-pull rod 3 rear portions are provided with the anti-arcuation ring platform 6 of pulling back that matches with the anti-arcuation annular groove 4 of pulling back.It is to use like this: when the nurse all injects the medicinal liquid in the injection tube 1 in the patient body, the handle 5 that pushes away of piston push-pull rod 3 must be pushed in the injection tube 1, the anti-arcuation ring platform 6 of pulling back is interlocked with the anti-arcuation annular groove 4 of pulling back, thereby realizes preventing the purpose that piston push-pull rod 3 is pulled back.
As shown in Figure 2, the anti-withdrawing device of plug formula also can be that the external diameter that pushes away handle 5 at piston push-pull rod 3 rear portions increases gradually firmly, and its maximum gauge is slightly larger than the internal diameter of injection tube 1 rear end.It is to use like this: when the nurse all injects the medicinal liquid in the injection tube 1 in the patient body, the handle 5 that pushes away of piston push-pull rod 3 must be pushed in the injection tube 1, owing to push away the slightly larger in diameter of handle 5 rear ends in the internal diameter of injection tube 1 rear end, push away handle 5 inevitable jam-packs in injection tube 1, and obtain spacing, thereby realize preventing the purpose that piston push-pull rod 3 is pulled back.
Claims (3)
1. the anti-disposable syringe of pulling back includes to annotate and thanks tube (1), piston (2) and piston push-pull rod (3), it is characterized in that: be provided with the anti-withdrawing device of hard plug formula between injection tube (1) and piston push-pull rod (3).
2. the anti-disposable syringe of pulling back as claimed in claim 1, it is characterized in that: the anti-withdrawing device of plug formula is to be arranged to the anti-arcuation annular groove (4) of pulling back at injection tube (1) rear end inwall firmly, and handle (5) edge that pushes away at piston push-pull rod (3) rear portion is provided with the anti-arcuation ring platform (6) of pulling back that matches with the anti-arcuation annular groove (4) of pulling back.
3. the anti-disposable syringe of pulling back as claimed in claim 1 is characterized in that: the anti-withdrawing device of plug formula is piston push-pull rod (3) rear portion the external diameter that pushes away handle (5) increases gradually firmly, and its maximum gauge is slightly larger than the internal diameter of injection tube (1) rear end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02244992 CN2582628Y (en) | 2002-11-28 | 2002-11-28 | Disposable syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02244992 CN2582628Y (en) | 2002-11-28 | 2002-11-28 | Disposable syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2582628Y true CN2582628Y (en) | 2003-10-29 |
Family
ID=33716739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02244992 Expired - Fee Related CN2582628Y (en) | 2002-11-28 | 2002-11-28 | Disposable syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2582628Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009127077A1 (en) * | 2008-04-14 | 2009-10-22 | 明辰股份有限公司 | Pre-filled automatically retractable safe injector |
| CN107485766A (en) * | 2017-09-20 | 2017-12-19 | 安徽名之工业设计有限公司 | A kind of disposable syringe |
-
2002
- 2002-11-28 CN CN 02244992 patent/CN2582628Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009127077A1 (en) * | 2008-04-14 | 2009-10-22 | 明辰股份有限公司 | Pre-filled automatically retractable safe injector |
| CN107485766A (en) * | 2017-09-20 | 2017-12-19 | 安徽名之工业设计有限公司 | A kind of disposable syringe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |