Needle retraction apparatus

摘要

A needle retraction apparatus for a medical device such as a liquid infusion or collection device, the apparatus having a body, a needle retraction mechanism seated inside the body, a transverse slide member with an external needle retraction chamber, and a retraction actuator that is rotatable relative to the slide member, the retraction actuator being attachable to or made as part of the liquid infusion or collection device, whereby rotation of the device causes the slide member to move in a linear translational direction to reposition the retraction chamber in alignment with the needle retraction mechanism and allow retraction.

主权项

1. A needle retraction apparatus for use with medical devices, said medical devices including liquid infusion devices and liquid collection devices, the apparatus comprising:
a body; a retractable needle assembly further comprising a needle projecting forwardly from the body; a slide member supported by the body, the slide member further comprising a rearwardly projecting needle retraction chamber; and an actuator rotatably supported by and connected to the slide member, the actuator further comprising a connector member providing fluid communication with the liquid infusion device or liquid collection device; wherein the body is attachable to the slide member so that relative movement between the body and slide member is limited to sliding movement that is linear and translation in a plane transverse to a longitude axis through the needle; and wherein rotation of the actuator relative to the slide member initiates needle retraction by causing the needle retraction chamber to slide transversely into alignment with the needle.