Attachable Plunger Rod and Associated Packaging

Patent metadata

Field	Value
Publication number	US-2016228649-A1
Application number	US-201615098846-A
Country	US
Kind code	A1
Filing date	Apr 14, 2016
Priority date	Sep 30, 2011
Publication date	Aug 11, 2016
Grant date	—

Abstract

A syringe assembly including a plunger rod separate and detached from a syringe barrel and a packaging member, the plunger rod having a sealing member and the packaging member having a first compartment and a second compartment is disclosed. With the syringe barrel received within the first compartment and the plunger rod received within the second compartment, the sealing member of the plunger rod seals the syringe barrel and the plunger rod within the packaging member. In this manner, the syringe assembly is placed in the packaging member in a manner that allows for reduced storage space of the syringe assembly.

First claim

What is claimed is:

1 . A syringe assembly, comprising:
a syringe barrel having a first end, a second end, and a sidewall extending therebetween and defining a chamber having an interior; a stopper slidably disposed within the interior of the chamber of the syringe barrel and defining an aperture therein, the stopper comprising a deformable restraining member adjacent the aperture, the deformable restraining member transitionable between a deformed position to an undeformed position; and a plunger rod having a first end, a second end, and a plunger rod head disposed adjacent the first end of the plunger rod, wherein as the plunger rod head is moved axially within the aperture of the stopper, the plunger rod head deforms the restraining member of the stopper, and once the plunger rod head is advanced beyond the restraining member of the stopper, the restraining member returns to its undeformed position to secure the plunger rod head within the aperture.

2 . The syringe assembly of claim 1 , wherein the restraining member comprises at least one deformable finger adjacent the aperture.

3 . The syringe assembly of claim 1 , wherein the restraining member comprises a plurality of deformable fingers disposed about a perimeter of the aperture.

4 . The syringe assembly of claim 3 , wherein the plurality of deformable fingers extends at least partially into the aperture.

5 . The syringe assembly of claim 4 , wherein as the plunger rod head is moved axially within the aperture of the stopper, the plunger rod head compresses the deformable fingers of the restraining member of the stopper, and once the plunger rod head is moved over and past the deformable fingers of the restraining member of the stopper, the deformable fingers of the restraining member of the stopper return to their undeformed position such that the deformable fingers engage the plunger rod head thereby securing the plunger rod to the stopper.

6 . The syringe assembly of claim 1 , wherein the plunger rod head is substantially rigid.

7 . The syringe assembly of claim 1 , further comprising a medication or drug disposed within the chamber.

8 . The syringe assembly of claim 1 , further comprising an oxygen absorber contained within the plunger rod.

9 . A syringe assembly, comprising:
a syringe barrel having a first end, a second end, and a sidewall extending therebetween and defining a chamber having an interior; a stopper slidably disposed within the interior of the chamber of the syringe barrel and defining an aperture therein, the stopper comprising a protruding member adjacent the aperture; and a plunger rod having a first end, a second end, and a plunger rod head disposed adjacent the first end of the plunger rod, the plunger rod head comprising a deformable restraining member transitionable between a deformed position to an undeformed position, wherein as the plunger rod head is moved axially within the aperture of the stopper, the protruding member of the stopper deforms the restraining member of the plunger rod head, and once the plunger rod head is advanced beyond the protruding member of the stopper, the restraining member returns to its undeformed position to secure the plunger rod head within the aperture.

10 . The syringe assembly of claim 9 , wherein the restraining member comprises at least one deformable finger.

11 . The syringe assembly of claim 9 , wherein the restraining member comprises a plurality of deformable fingers disposed about a perimeter of the plunger rod head.

12 . The syringe assembly of claim 11 , wherein as the plunger rod head is moved axially within the aperture of the stopper, the protruding member of the stopper compresses the deformable fingers of the restraining member of the plunger rod head, and once the plunger rod head is moved over and past the protruding member of the stopper, the deformable fingers of the restraining member of the plunger rod head return to their undeformed position such that the protruding member of the stopper engages the deformable fingers of the restraining member of the plunger rod head thereby securing the plunger rod to the stopper.

13 . The syringe assembly of claim 9 , wherein the protruding member is substantially rigid.

14 . The syringe assembly of claim 9 , further comprising a medication or drug disposed within the chamber.

15 . The syringe assembly of claim 9 , further comprising an oxygen absorber contained within the plunger rod.

Assignees

• Becton Dickinson France Sas

Inventors

• Hilliard Christopher Todd
• Hottovy Tracy Ray
• Pellegrini James J

Classifications

• A61M5/31511 Primary

  Piston or piston-rod constructions, e.g. connection of piston with piston-rod (A61M5/5066 takes precedence) · CPC title

• A61M2005/31518

  designed to reduce the overall size of an injection device, e.g. using flexible or pivotally connected chain-like rod members · CPC title

• F04C2270/0421

  Controlled or regulated · CPC title

• B65D81/24

  Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants (with thermal insulation B65D81/38) · CPC title

• A61M5/002 Primary

  Packages specially adapted therefor, e.g. for syringes or needles, kits for diabetics (needle protection, e.g. caps, A61M5/3202; for sharps A61B50/3001) · CPC title