Safety needle shield apparatus

摘要

A safety shield apparatus is provided that includes a housing that defines a cavity. A distal end of the housing includes a cover having a movable tab. A hub is disposed for movement within the housing and includes a needle having a distal end and a movable projection. The hub is biased between an extended position, such that the distal end of the needle is exposed and the movable projection is releasably disposed with the cavity, and a retracted position whereby the distal end of the needle is disposed within the housing. The movable tab is engageable with the movable projection to release the movable projection from the cavity to facilitate movement of the hub. The distal end of the housing may define a lip that is configured to capture the distal end of the needle. The hub can define an angled distal surface to orient the needle out of axial alignment with the housing and into capture with the lip.

主权项

1. A safety shield apparatus comprising:
a housing having a longitudinal axis and a distal end including a transverse wall having a first opening; a needle cannula supported on a needle hub, the needle hub being slidably supported within the housing for movement between an advanced position, in which the needle cannula is in a first position extending from the housing through the first opening, and a retracted position, in which the needle is located in a second position within the housing; and a biasing member positioned in the housing between the transverse wall of the housing and the needle hub and biasing the needle cannula toward its second position; wherein at least one of the needle hub and the housing having a planar engagement surface that is inclined with respect to the longitudinal axis for urging the needle cannula toward a side wall of the housing, thereby moving the needle cannula out of alignment with the longitudinal axis of the housing when the needle cannula is located in the retracted position and the needle is in the second position, the biasing member engaging the inclined planar engagement surface.