CN201814945U - Anti-drop type disposable injector - Google Patents
Anti-drop type disposable injector Download PDFInfo
- Publication number
- CN201814945U CN201814945U CN 201020590564 CN201020590564U CN201814945U CN 201814945 U CN201814945 U CN 201814945U CN 201020590564 CN201020590564 CN 201020590564 CN 201020590564 U CN201020590564 U CN 201020590564U CN 201814945 U CN201814945 U CN 201814945U
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- CN
- China
- Prior art keywords
- syringe
- needle
- needle head
- threads
- type disposable
- 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
An anti-drop type disposable injector belongs to medical equipment, and comprises an needle cylinder and a needle head of an injector, wherein external threads are formed outside the nipple of the needle cylinder, internal threads are formed inside the needle head seat of the needle head, when the anti-drop type disposable injector is used, the nipple of the needle cylinder and the needle head seat of the needle head are in thread fit connection, and the threads can be fine threads or taper pipe threads. When the anti-drop type disposable injector is used, firm fixing can be achieved by screwing with a slight force, the reliability is good, and the structure is reasonable; and the needle head is effectively prevented from dropping off and prevented from being detained in the body of a patient or prevented from liquor spluttering. The production process is simple, and the production cost is low. The utility model is widely applicable to various disposable injectors.
Description
Technical field
This utility model belongs to the medical device technical field, more particularly relates to the design improvement of separation preventing disposable syringe.
Background technology
The nipple outer surface of conventional syringe syringe and needle holder inner surface are all very smooth.Even thereby firmly peg graft when using because the frictional force between syringe needle and the syringe is little, syringe needle also easily slippage separate.In the actual clinical use, the situation of above-mentioned syringe needle slippage often takes place.For example: when carrying out intramuscular injection to patient, pull out pin after syringe needle still be trapped on the patient body; During compounding pharmaceutical, the pressure in the closed medicine bottle is high slightly, can cause syringe needle and syringe collapse from, cause medicinal liquid to spatter or the like outward.These situations not only cause the waste of medicine, also can pollute surrounding.In addition, if medicine has severe toxicity, also can produce infringement to operator or medical personnel's health.
Summary of the invention
The purpose of this utility model just is to overcome above-mentioned shortcoming and defect, and a kind of separation preventing disposable syringe is provided.Its needle holder inside has female thread, and syringe nipple outside has external screw thread, and the two is to be threaded.During use a little firmly turn-knob can fixedly secure, good reliability, rational in infrastructure.Can effectively avoid the syringe needle slippage, prevent that syringe needle is trapped on the patient body or medicinal liquid spatters outward.And processing technology is simple, and production cost is low.
In order to achieve the above object, this utility model comprises injector syringe and syringe needle, and the nipple outside of syringe has external screw thread, and the needle holder inside of syringe needle has female thread, and the two connects with threaded engagement during use.
Screw thread can be fine thread.The number of turns of common coarse thread very little, the number of turns is more when using fine thread instead, connects more reliable.
Screw thread also can be taper pipe thread.Use taper pipe thread instead and can improve processing technique, connect rapidly fast, also reduced cost.
Disposable syringe generally forms with plastic injection-moulded, and adding man-hour all can injection moulding together with screw thread, thereby processing technology is simple, and production cost is low.
Task of the present utility model comes to this and finishes.
Needle holder of the present utility model inside has female thread, and syringe nipple outside has external screw thread, and the two is to be threaded.During use a little firmly turn-knob can fixedly secure, good reliability, rational in infrastructure; Can effectively avoid the syringe needle slippage, prevent that syringe needle is trapped on the patient body or medicinal liquid spatters outward.And then can avoid polluting surrounding, infringement operator or nurse's health.And processing technology is simple, and production cost is low.It can be widely used in the various disposable syringes.
Description of drawings
Fig. 1 is the structural representation of this utility model injector syringe.
Fig. 2 is the structural representation of syringe needle.
The specific embodiment
Embodiment 1.A kind of separation preventing disposable syringe is as Fig. 1～shown in Figure 2.Comprise injector syringe 1 and syringe needle 2, nipple 3 outsides of syringe 1 have external screw thread 5, and needle holder 4 inside of syringe needle 2 have female thread 6, and the two connects with threaded engagement.7 is piston.
External screw thread 5 and female thread 6 are fine thread M3 * 0.35.The number of turns of screw thread is more when using fine thread, connects more reliable.
The needle holder inside of embodiment 1 has female thread, and syringe nipple outside has external screw thread, and the two is to be threaded.Turn-knob a little firmly during use can fixedly secure the two, and good reliability is rational in infrastructure; Can effectively avoid the syringe needle slippage, prevent that syringe needle is trapped on the patient body or medicinal liquid spatters outward.And processing technology is simple, and production cost is low.It can be widely used in the various disposable syringes.
Claims (3)
1. a separation preventing disposable syringe comprises injector syringe and syringe needle, it is characterized in that the nipple outside of syringe has external screw thread, and the needle holder inside of syringe needle has female thread, and the two connects with threaded engagement during use.
2. according to the described separation preventing disposable syringe of claim 1, it is characterized in that said screw thread is a fine thread.
3. according to claim 1 or 2 described separation preventing disposable syringes, it is characterized in that said screw thread is a taper pipe thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020590564 CN201814945U (en) | 2010-10-22 | 2010-10-22 | Anti-drop type disposable injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020590564 CN201814945U (en) | 2010-10-22 | 2010-10-22 | Anti-drop type disposable injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201814945U true CN201814945U (en) | 2011-05-04 |
Family
ID=43912917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020590564 Expired - Fee Related CN201814945U (en) | 2010-10-22 | 2010-10-22 | Anti-drop type disposable injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201814945U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102512321A (en) * | 2011-11-23 | 2012-06-27 | 青岛大学医学院附属医院 | Disposable safe medicine-dissolving syringe needle |
| CN104221826A (en) * | 2014-09-01 | 2014-12-24 | 董兰田 | Irrigating device for underground roots of single plantlet in drought region |
| CN108403251A (en) * | 2018-03-16 | 2018-08-17 | 鲁恩赐 | A kind of disposable syringe for veterinary use |
-
2010
- 2010-10-22 CN CN 201020590564 patent/CN201814945U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102512321A (en) * | 2011-11-23 | 2012-06-27 | 青岛大学医学院附属医院 | Disposable safe medicine-dissolving syringe needle |
| CN104221826A (en) * | 2014-09-01 | 2014-12-24 | 董兰田 | Irrigating device for underground roots of single plantlet in drought region |
| CN108403251A (en) * | 2018-03-16 | 2018-08-17 | 鲁恩赐 | A kind of disposable syringe for veterinary use |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110504 Termination date: 20111022 |