Patent ID: 9078978
Filing Date: 2015-07-14
Classification: A61B,A61J,A61M

Abstract:
1. A needle assembly comprising: a body having a front portion, a back portion configured to be connected to a device configured to inject or withdraw fluids, and a wall or needle support separating the front and back portions; a needle having a piercing portion projecting forwardly from the wall or needle support; and a safety shield that is axially movable relative to the body at least between an initial position, at least a partially retracted position, and a post use locking position, wherein the safety shield at least one of: has an outer sleeve portion and an inner sleeve portion that is at least partially disposed within the front portion of the body, said inner sleeve portion includes a locking system which is prevented from being contacted by a user's fingers, and moves linearly without also rotating; has an outer sleeve portion and an axially shorter inner sleeve portion and rotates at least partially in opposite directions as it moves from the initial position to the retracted position; has an outer sleeve portion and an inner sleeve portion and said outer sleeve portion slides over an outer surface of the body and the safety shield further includes at least one projection that extends into a guide recess comprising at least a linear section and a curved section; has an outer sleeve portion and an inner sleeve portion and said outer sleeve portion slides over an outer surface of the body and includes at least one projection that extends into a guide recess comprising at least a linear section and an angled section; has an outer sleeve portion that slides over an outer surface of the body and an inner sleeve portion that slides within an inner surface of the body and the safety shield further includes at least one projection that extends into a guide recess comprising at least one locking mechanism for retaining the safety shield in the post use locking position; has an outer sleeve portion and an inner sleeve portion and includes an annular space between the outer sleeve portion and the inner sleeve portion that receives therein the front portion of the body and the safety shield further includes at least one mechanism for preventing a locking of the safety shield when said shield is in an initial position and not in the post use locking position; includes at least one mechanism for providing a visual indication to the user that the needle tip has been used, wherein the visual indication is arranged on a skin engaging end of the safety shield; and/or includes a first portion that is at least partially disposed within the front portion of the body, a second portion that at least partially covers the front portion, has its movement limited by engagement between at least one projection extending into a guide recess, and said at least one projection is covered by a portion of the safety shield when the safety is in the initial position and in the post use locking position.