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US 2013/0172818 A1Published application
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
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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.
Claims20
A needle assembly comprising:
- a body having a front portion, a back portion configured to be connected to 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 partially retracted position, and a post use locking position,
- wherein the safety shield at least one of:
- is at least partially disposed within the front portion of the body, includes a locking system which is prevented from being contacted by a user's fingers, and moves linearly without also rotating;
- rotates at least partially in opposite directions as it moves from the initial position to the retracted position;
- rotates at least partially in opposite directions as it moves from the initial position to the retracted position;
- includes at least one projection that extends into a guide recess comprising at least a linear section and a curved section;
- includes at least one projection that extends into a guide recess comprising at least a linear section and an angled section;
- 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;
- includes at least one mechanism for preventing a locking of the safety shield when said shield in 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
- 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, and has its movement limited by engagement between at least one projection extending into a guide recess.
12 more elements
A single-use needle assembly for a syringe, comprising:
- a body having a front portion, a back portion configured to be connected to the syringe, and a needle support arranged between the front and back portions;
- a hollow needle having a piercing portion projecting forwardly from the needle support;
- and
- a safety shield that is axially movable relative to the body at least between an initial position, a retracted position, and a post use locking position,
- wherein the needle assembly has the following modes of operation when installed on the syringe:
- a first mode wherein the needle assembly can be removably installed on the syringe;
- a second mode wherein the safety shield can move to a first retracted position during injection of the piercing portion of needle into a medicine container;
- and
- a third mode wherein the safety shield automatically moves to a position protecting the piercing portion of the needle after the second mode and is prevented from moving back to a position exposing the piercing portion of the needle.
6 more elements
An assembly comprising:
- a body having a connectable back portion and;
- a needle having a piercing portion projecting forwardly from the body;
- and
- a safety shield that is movable at least between an initial position, at least a partially retracted position, and a post use locking position,
- wherein at least one of:
- the needle assembly is a spike needle assembly;
- the needle assembly is mountable to a Luer-lok type interface of a syringe;
- and
- the needle assembly has depth of penetration adjustment.
6 more elements
Dependencies are inferred from the claim text.