Recycled resin compositions and disposable medical devices made therefrom

Patent metadata

Field	Value
Publication number	US-2016015867-A1
Application number	US-201514868289-A
Country	US
Kind code	A1
Filing date	Sep 28, 2015
Priority date	Nov 4, 2011
Publication date	Jan 21, 2016
Grant date	—

Abstract

Syringe plunger rods comprising an elongate body formed from a composition comprising one or more of virgin material, a sterilization-stable recycled resin and a biobased compositions are described. Plunger rods comprising a plurality of ribs, some of which may have a plurality of openings, are also described. The plunger rods requiring less material while maintaining sufficient structural integrity to function properly.

First claim

What is claimed is:

1 . A syringe plunger rod comprising:
an elongate body having a proximal end and a distal end defining a length and three ribs extending the length of the body, at least one of the three ribs having a plurality of openings spaced along the length; a thumbpress positioned at the proximal end of the elongate body; and a stopper support positioned at the distal end of the elongate body, wherein each of the elongate body and stopper support are formed from compositions comprising one or more of a recycled resin and/or a biobased composition.

2 . The syringe plunger rod of claim 1 , wherein the plurality of spaced openings are along all of the ribs.

3 . The syringe plunger rod of claim 2 , wherein at least some of the plurality of openings occur at an intersection of at least two of the ribs.

4 . The syringe plunger rod of claim 1 , wherein the plurality of spaced openings are along two of the three ribs.

5 . The syringe plunger rod of claim 1 , wherein the plurality of spaced openings are along only one of the three ribs.

6 . The syringe plunger rod of claim 1 , wherein the plurality of spaced openings are along less than all of the three ribs.

7 . The syringe plunger rod of claim 1 , further comprising support walls contacting two of the ribs, the support walls spaced along the length of the elongate body.

8 . The syringe plunger rod of claim 1 , wherein the composition further comprises one or more of an antioxidant component, slip additive component, anti-static component, impact modifier component, colorant component, acid scavenger component, x-ray fluorescence agent component, radio-opaque filler component, surface modifier component, processing aid component, melt stabilizer, clarifiers or reinforcing agent component.

9 . A syringe plunger rod comprising:
an elongate body having a proximal end and a distal end defining a length and at least two ribs extending the length of the body, at least one of the ribs having a plurality of openings spaced along the length; a thumbpress positioned at the proximal end of the elongate body; and a stopper support positioned at the distal end of the elongate body, wherein each of the elongate body and stopper support are formed from compositions comprising one or more of a recycled resin and/or a biobased composition.

10 . The syringe plunger rod of claim 9 , wherein the plurality of spaced openings are positioned on less than all of the ribs.

11 . The syringe plunger rod of claim 9 , wherein the two ribs intersect to form a v-shape.

12 . The syringe plunger rod of claim 11 , further comprising a plurality of support walls spaced along the length of the elongate body.

13 . The syringe plunger rod of claim 9 , wherein the composition further comprises one or more of an antioxidant component, slip additive component, anti-static component, impact modifier component, colorant component, acid scavenger component, x-ray fluorescence agent component, radio-opaque filler component, surface modifier component, processing aid component, melt stabilizer, clarifiers or reinforcing agent component.

14 . A syringe plunger rod comprising:
an elongate body having a proximal end and a distal end defining a length with a hollow portion extending along the length and a plurality of openings spaced along the length; a thumbpress positioned at the proximal end of the elongate body; and a stopper support positioned at the distal end of the elongate body, wherein each of the elongate body and stopper support are formed from compositions comprising one or more of a recycled resin and/or a biobased composition.

15 . The syringe plunger rod of claim 14 , further comprising at least one rib within the hollow portion extending at least partially along the length of the elongate body.

16 . The syringe plunger rod of claim 14 , wherein the hollow portion is shaped substantially similar to that of the elongate body.

17 . The syringe plunger rod of claim 14 , wherein the elongate body is cylindrical and there is a plurality of openings therethrough spaced along the length of the elongate body.

Assignees

• Kulshrestha Ankur S
• Yevmenenko Yan
• Kommireddy Dinesh S
• Wong Andrew
• Mottahed Behzad
• Quinn Michael V
• Calistri-Yeh Mildred
• Amora Lourdes Pia L
• Becton Dickinson Co

Inventors

• Kulshrestha Ankur S
• Yevmenenko Yan
• Kommireddy Dinesh S
• Wong Andrew
• Mottahed Behzad
• Quinn Michael V
• Calistri-Yeh Mildred
• Amora Lourdes Pia L

Classifications

• A61B2017/00955

  thermoplastic · CPC title

• A61M5/3129

  Syringe barrels (A61M5/3205 and A61M5/50 take precedence) · CPC title

• A61L31/143

  Stabilizers · CPC title

• A61M5/31511 Primary

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

• A61L31/048 Primary

  obtained by reactions only involving carbon-to-carbon unsaturated bonds (A61L31/041 takes precedence) · CPC title