safety needle device

Abstract

A needle safety device has a housing configured to be coupled to a syringe, the housing having a proximal end, a distal end, and a housing body. The first guide path, the second guide path and the third guide path may be provided on the housing body. A needle hub is disposed on the proximal end of the housing, to which the needle cannula is attached. The device has a retractable sheath configured to move relative to the housing between an initial position partially exposing the distal tip of the needle cannula and a retracted position fully The needle cannula is exposed with the extended position completely covering the distal tip of the needle cannula. The retractable sheath may also have a guiding element. The first, second and third guide paths are configured to slidably receive guide elements. The device also has a first locking member, a second locking member, a rotating cam disposed in the housing body, and a spring element to bias the retractable sheath to an extended position to cover the needle cannula when the injection is complete. distal end.

Description

technical field [0001] The present invention relates generally to a safety needle device, and more particularly to a disposable passive safety needle device having a housing, a first guide path, a second guide path, and the first guide path and the second guide path. A third guiding path where the two guiding paths intersect, a needle hub, a needle cannula, a retractable sheath, a first locking member, a second locking member, a rotating cam, and a spring that biases the The sheath is retractable to cover the distal end of the needle cannula. Background technique [0002] Needle devices are used throughout the medical industry to inject and withdraw a wide variety of fluids and solutions into and out of the human body. Due to the many potential hazards associated with the handling and manipulation of bodily fluids, particularly blood, there are many known safety features that are often incorporated into various types of needle devices to protect physicians from accidental ...

AI Technical Summary

Problems solved by technology

[0003] Prior art safety needle devices contain several disadvantages including: having a retractable sheath that requires a long travel distance to activate the safety feature; a multi-component retraction and locking element; undesirably imparts significant force to the patient's skin during

In addition, since the tip of the prior art retractable sheath safety needle device is completely covered in the unlocked state, even in the unlocked initial state, there are many users who mistakenly believe that their needlestick injury is " safe" trend

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