A fluid administration medical apparatus and intravenous catheter assembly

Abstract

A fluid administration medical apparatus (110) comprising: a catheter tube (114); a hub (212) having a distal section (234) and a proximal section (36), wherein the distal section (234) is joined to the catheter tube (114) and the proximal section (136) defines a housing (124); one or more ports (158) connected to the hub (212) by a fluid passage (262) through a passageway (272); a needle (220) extending through the hub (212) and the catheter tube (114) and defining an axial direction (X), wherein the needle (220) has opposite proximal and distal ends (22, 24), the distal end (122) forming a needle tip (130); a needle hub (116) attached to the proximal end (124) of 5 the needle (220); a needle guard (226) slidably arranged on the needle (20), wherein the needle guard (226) is movably retained in the housing (248) of the hub (212) when the needle (220) extends through the hub (212) and the catheter tube (114), wherein the needle guard (226) is removable from the hub (212) once the needle tip (130) is received in the needle guard (226) upon withdrawal of the needle (220) from the catheter tube (114); and wherein the hub (212) is made of two parts i.e. first part (212b) and second part (212a) each of the parts (212a, 212b) having a distal end section (150) and a proximal end section (152).

Description

technical field [0001] The present invention generally relates to a fluid administration or infusion device. The invention also relates to intravenous catheter assemblies. More specifically, the present invention relates to a fluid administration medical device comprising: a hub disposed at the proximal end of a catheter tube and having an inner surface defining a housing; a needle having a needle tip and extending when in the ready position passing through the housing and the catheter tube; and a needle guard slidably disposed on the needle and received in the housing when the needle is in its ready position, wherein the guard A needle guard is configured to protect the needle tip when the needle is withdrawn from the hub. Background technique [0002] Fluid administration medical devices and intravenous catheter assemblies of the type described above are generally known to those skilled in the art and can be used for infusion and infusion purposes. Such fluid administra...

AI Technical Summary

Problems solved by technology

[0007] Further, prior art devices have disadvantages including that the design of the device also imposes significant drag on the needle shaft, which makes the device difficult and undesirable to use and painful for the patient to use

However, if the needle remains within the septum for an extended period of time, the septum may not seal completely after removal of the needle, thereby partially conforming to the shape of the withdrawn needle

An incompletely sealed septum increases the risk of blood exposure to medical personnel because blood can flow through the small opening in the septum's slit

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