Syringe with disinfecting tip feature

Patent metadata

Field	Value
Publication number	US-12527946-B2
Application number	US-202017108262-A
Country	US
Kind code	B2
Filing date	Dec 1, 2020
Priority date	Sep 30, 2011
Publication date	Jan 20, 2026
Grant date	Jan 20, 2026

Abstract

Syringe assemblies comprising a disinfecting reservoir collar to ensure an adherence to aseptic techniques for use in flush procedures for vascular access devices (VAD's) are described. The syringe assemblies include a plunger rod, a syringe barrel, and the reservoir collar that permits disinfection of a hub of a VAD connector upon connection to the reservoir collar. Also described are methods of disinfecting the vascular access devices.

First claim

What is claimed is:

1 . A flush syringe assembly comprising:
a barrel including a side wall having an inside surface defining a chamber for retaining a fluid, an open proximal end, a distal end including a distal wall with a first tip extending distally therefrom having a first passageway therethrough in fluid communication with said chamber; a plunger rod disposed within the barrel, the plunger rod comprising a distal portion and a proximal portion, the plunger rod further comprising a distal end including a stopper slidably positioned in fluid-tight engagement with the inside surface of the barrel for drawing the fluid into and driving the fluid out of the chamber by movement of the stopper relative to the barrel, the plunger rod extending outwardly from the open proximal end of the barrel, the stopper having a distal surface; and a reservoir collar mounted on the distal wall of the barrel and surrounding the first tip, the reservoir collar including at least one side wall having an inside surface defining a compartment containing a disinfectant or an antimicrobial agent, a plurality of threads on the inside surface of the at least one side wall of the reservoir collar for connection to a hub of a vascular access device, a sealed distal end, a proximal end adjacent the distal wall of the barrel, with disinfection of the hub of the vascular access device by the disinfectant or the antimicrobial agent, and a second tip with a second passageway therethrough which, upon interlocking of the second tip with the first tip of the barrel and connection of the second tip to the hub of the vascular access device, produces one integral passageway for fluid communication from the barrel to the vascular access device.

2 . The flush syringe assembly of claim 1 , wherein the reservoir collar further comprises an absorbent material for soaking up the disinfectant or the antimicrobial agent.

3 . The flush syringe assembly of claim 2 , wherein the absorbent material compresses toward the proximal end of the reservoir collar upon connection to the hub of the vascular access device.

4 . The flush syringe assembly of claim 3 , wherein the compression of the absorbent material disinfects the vascular access device.

5 . The flush syringe assembly of claim 1 , wherein the disinfectant or the antimicrobial agent is a fluid, a foam or a gel.

6 . The flush syringe assembly of claim 1 , wherein the disinfectant or the antimicrobial agent is selected from the group consisting of ethanol, 2-propanol, butanol, methylparaben, ethylparaben, propylparaben, propyl gallate, butylated hydroxyanisole (BHA), butylated hydroxytoluene, t-butyl-hydroquinone, chloroxylenol, chlorohexidine, dichlorobenzyl alcohol, dehydroacetic acid, hexetidine, triclosan, hydrogen peroxide, colloidal silver, and mixtures thereof.

7 . The flush syringe assembly of claim 1 , further comprising a removable seal adhered to the distal end of the reservoir collar.

8 . The flush syringe assembly of claim 7 , wherein the removable seal comprises an aluminum or multi-layer polymer film peel back top.

9 . The flush syringe assembly of claim 1 , further comprising an aluminum lining adhered to the inside surface of the at least one side wall of the reservoir collar.

10 . A method of disinfecting a vascular access device, the method comprising:
connecting the flush syringe assembly of claim 1 to a hub of the vascular access device, wherein the connecting includes frictionally engaging the reservoir collar with the hub of the vascular access device such that the hub of the vascular access device contacts the disinfectant or the antimicrobial agent contained within the reservoir collar.

11 . The method of claim 10 , wherein the reservoir collar further contains an absorbent material.

12 . The method of claim 11 , wherein upon the connection, the hub contacts the disinfectant or the antimicrobial agent and the absorbent material.

13 . The method of claim 10 , wherein the flush syringe assembly further comprises a space between the proximal end of the reservoir collar and the plurality of threads, the space having no threading and being configured to allow full rotation of the hub of the vascular access device when the hub is connected to the reservoir collar, and the method further comprises rotating the hub of the vascular access device upon the connection to the reservoir collar.

14 . The flush syringe assembly of claim 1 further comprising a space between the proximal end of the reservoir collar and the plurality of threads, the space having no threading and being configured to allow full rotation of the hub of the vascular access device when the hub is connected to the reservoir collar.

15 . The flush syringe assembly of claim 14 , wherein the reservoir collar further comprises an absorbent material for soaking up the disinfectant or the antimicrobial agent.

16 . The flush syringe assembly of claim 15 , wherein the absorbent material compresses into the space upon connection to the hub of the vascular access device.

Assignees

• Becton Dickinson Co

Inventors

• Charles Nichola
• Zerda Adam

Classifications

• A61M2039/0018

  designed for flushing a line, e.g. by a by-pass · CPC title

• A61M2205/19

  Constructional features of carpules, syringes or blisters · CPC title

• A61M5/347

  rotatable, e.g. bayonet or screw (A61M5/344 takes precedence) · CPC title

• A61M5/345

  Adaptors positioned between needle hub and syringe nozzle · CPC title

• A61M2205/0205

  Materials having antiseptic or antimicrobial properties, e.g. silver compounds, rubber with sterilising agent · CPC title