Self-destruction pulling-down safe needle instrument

Abstract

The invention provides a self-destruction pulling-down safe needle instrument. The self-destruction pulling-down safe needle instrument comprises an injection needle instrument containing a needle cylinder and a pushing cylinder, wherein a side part, adjacent to an outlet part of the needle cylinder, of the needle cylinder is defined by a snap-in fall-off notch part, a needle cylinder combination accommodating region is defined in the needle cylinder, a pushing cylinder sealing soft sleeve is combined and located onto the pushing cylinder, an integrated function combination is arranged at a side part of the outlet part of the needle cylinder and is provided with a combination liquid outlet and a combination combining part capable of being combined with a needle, a snap-in fall-off device and a limiting stopping device are arranged between the needle cylinder and the integrated function combination, a self-destruction device is arranged between the pushing cylinder and the integrated function combination and comprises a self-destruction engaging assembly and a self-destruction locating assembly, and a needle tilting device and an air-tight device are defined on the integrated function combination. Thus, the pushing cylinder and the integrated function combination can be combined through the self-destruction device so as to pull down the needle and carry the needle into the needle cylinder, and advantages of preventing reuse and improving safety are achieved through the needle tilting device.

Description

technical field

[0001] The present invention provides a self-destructing retractable safety needle, especially a self-destructing device that can actively combine the pusher part of the syringe with the overall functional combination after the liquid in the syringe is injected, and then A self-destructing retractable safety needle that retracts the needle into the barrel and tilts the needle to prevent re-use. Background technique

[0002] Because injection needles are medical products that come into contact with human tissue or blood, they are basically disposable after one use. However, there are still many unscrupulous operators who recycle needles for reuse or shared use by multiple people With the same injection needle, this situation is quite dangerous behavior for patients, so many countries have begun to legislate that disposable safety needles must be used to prevent this situation.

[0003] General safety needles can be divided into two types: after use, a sleeve ...

Images