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US 9,770,200 B2Granted
Needle assembly with safety system for a syringe or fluid sampling device and method of making and using the same
AssigneeStat Medical Devices, Inc.
InventorSteven Schraga
Life of this patent
Estimating the term…
Abstract
Needle assembly having the following modes of operation; a first mode wherein the safety shield can move to a first retracted position allowing injection of the piercing portion of needle from a position at least partially covering the piercing portion of the needle and a second mode wherein the safety shield moves to a position protecting the piercing portion of the needle after the first mode and is prevented from moving back to a position exposing the piercing portion of the needle.
Claims16
A needle assembly connectable to an injection device, the needle assembly comprising:
- a body;
- a luer-lock interface arranged on a rear side of the body;
- a needle for injecting or withdrawing fluids;
- the needle having a portion retained in the body and a piercing portion projecting forwardly from the portion retained in the body;
- a safety shield that is axially movable relative to the body at least between an initial position, an at least partially retracted position, and a post-use locking position;
- and
- a spring biasing the safety shield away from the at least partially retracted position,
- wherein the safety shield:
- locks in the post-use locking position via an internal locking system, wherein the internal locking system is prevented from being contacted by a user's fingers;
- and
- rotates at least partially as it moves from the initial position to the at least partially retracted position;
- and
- wherein the needle assembly has the following modes of operation when installed on an injection device:
- a first mode wherein the safety shield can move to a first retracted position during injection of the piercing portion of the needle into a container containing a substance that can be suctioned into the injection device;
- a second mode wherein the safety shield moves to a position protecting the piercing portion of the needle after the first mode;
- a third mode wherein the safety shield can move to a second retracted position during injection of the piercing portion of the needle into a surface that will receive the substance forced out of the injection device;
- and
- a fourth mode wherein the safety shield moves to a position protecting the piercing portion of the needle after the third mode.
15 more elements
A needle assembly connectable to an injection device, the needle assembly comprising:
- a body;
- a luer-lock interface arranged on a rear side of the body;
- a needle for injecting or withdrawing fluids;
- the needle having a portion retained in the body and a piercing portion projecting forwardly from the portion retained in the body;
- a safety shield that is axially movable relative to the body at least between an initial position, an at least partially retracted position, and a post-use locking position;
- and
- a spring biasing the safety shield away from the at least partially retracted position,
- wherein the safety shield:
- locks in the post-use locking position via an internal locking system, wherein the internal locking system is prevented from being contacted by a user's fingers;
- and
- rotates at least partially as it moves from the initial position to the at least partially retracted position;
- and
- wherein the needle assembly has the following modes of operation when installed on an injection device:
- a first mode wherein the safety shield can move to a first retracted position during injection of the piercing portion of the needle into a container containing a substance that can be suctioned into the injection device;
- a second mode wherein the safety shield moves to a position protecting the piercing portion of the needle after the first mode;
- a third mode wherein the safety shield moves to a position protecting the piercing portion of the needle after the second mode;
- a fourth mode wherein the safety shield can move to a second retracted position during injection of the piercing portion of the needle into a surface that will receive the substance forced out of the injection device;
- and
- a fifth mode wherein the safety shield moves to a position protecting the piercing portion of the needle after the fourth mode and is prevented from moving back to a position exposing the piercing portion of the needle.
16 more elements
Dependencies are inferred from the claim text.