Spring clip needle guard

Abstract

A spring clip needle tip shielding device (100) for arrangement in a catheter hub of an intravenous catheter assembly (1000) is provided. The spring clip needle tip shielding device (100) comprises a base plate (101) with a hole (102) extending there through and at least one resilient arm (103) extending at an attachment point (104) at said base plate (101). The at least one resilient arm (103) has a resting state, from which it may be urged to yield free passage through said hole (102) in an axial direction of said base plate (101) in a tension state, said at least one resilient arm (103) being adapted for clamping a needle tip (304) of a needle (301) extending through said hole (102) when said resilient arm (103) is in said resting state. Any straight imaginary line extending longitudinally through said hole (102) in the axial direction of said base plate (101) coincides with said at least one resilient arm (103) when said resilient arm (103) is in said resting state (107) of said body. The spring clip needle tip shielding device (100) is of a rigid material, and at least a part thereof is coated with a solid lubricant (106). A catheter assembly (1000) including such shielding device is also provided.

Description

technical field [0001] The present invention relates to a spring clip needle shield, and a catheter device fitted with such a spring clip needle shield for automatic safety shielding of the needle after it has been used for introduction into a catheter conduit. Background technique [0002] In medical technology, for the introduction of catheters, it is widely known clinically to use pointed hollow needles mounted in flexible catheter tubing. In such medical devices, the catheter tubing wraps tightly around the needle, allowing the needle to slide and nest along the length of the catheter tubing. Before use, leave the tip of the needle slightly out of the opening of the catheter tube so that it can easily penetrate the skin. As the needle penetrates the skin, the distal end of the catheter tubing is simultaneously placed within the desired target body cavity of the patient, such as the interior of a blood vessel such as a vein. At this point, the needle has completed its t...

AI Technical Summary

Problems solved by technology

The combined use of these materials in this application involves the disadvantage of, for example, microscopic plastic fragments and metal particles being produced when the needle is withdrawn to remove the former from the latter, as the metal spring clip rubs against the inside of the plastic catheter hub

Another disadvantage of this and spring clips like safety IV catheters is that when the needle slides through and sits on the spring clip during being withdrawn, there is a scraping vibration

This scraping vibration produced by sliding metal on metal can be clearly heard and felt, causing extreme discomfort and concern to the patient, who is already in an uncomfortable and exposed situation and therefore very concern

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