Patent ID: 8021343
Filing Date: 2011-09-20
Classification: A61M

Abstract:
1. A device for expressing liquids by a medical practitioner during maintenance treatment of an implanted catheter, comprising: a support structure having at least two separate compartments for containing respective liquids; a distal wall traversing the support structure proximate a distal end thereof; a duct extending through the distal wall enabling liquid to exit the at least two compartments; at least one plunger movably affixed to the support structure proximate a proximal end thereof for infusing liquids from the device through the duct upon activation of the at least one plunger; and a closure plug for connecting with a catheter for maintenance treatment thereof and thereafter closing the open catheter proximal end, the closure plug having an exposed connection section whereby the closure plug is adapted to be mechanically connected with the catheter proximal end, and the closure plug having therewithin a transverse resealable membrane with a selectively openable through passage to allow passage of liquids through the duct therethrough to enter the catheter proximal end during treatment, wherein: the closure plug is initially affixed directly to the support structure within a plug-containing cavity thereof only by frangible sections such that the syringe with closure plug is handleable as a unit by the practitioner for connection to the catheter proximal end, and the closure plug is protected against inadvertent breakage of its frangible sections by being within the plug-containing cavity; and the frangible sections comprising tabs adapted to be broken by a rotary motion by the practitioner, whereby the closure plug becomes disconnected from the support structure as a result thereof when the device is removed from the catheter upon completion of maintenance treatment of the catheter, whereafter the membrane reseals and the closure plug sealingly closes off the catheter proximal end opening.