SINGLE-DOSE SYRINGE DRIVER

• US 20110092908A1
• Filed: 12/20/2010
• Published: 04/21/2011
• Est. Priority Date: 03/29/2006
• Status: Active Grant

• Current Assignee: The General Hospital Corporation (Mass General Brigham, Inc.)
• Original Assignee: The General Hospital Corporation (Mass General Brigham, Inc.)
• Inventors: Sims, Nathaniel M., Wollowitz, Michael H.
• Granted Patent: US 8,231,576 B2
• Time in Patent Office: Days
• US Class Current: 604/154
• CPC Class Codes: A61M 2205/6045 having complementary physical shapes for indexing or registration purposes
• CPC Class Codes: A61M 39/10 Tube connectors; Tube couplings A61M39/02 takes precedence; connecting needles to syringes or hubs A61M5/34; connecting catheter tubes to hubs A61M25/0014
• CPC Class Codes: A61M 5/1454 spring-actuated, e.g. by a clockwork
• CPC Class Codes: A61M 5/1456 with a replaceable reservoir comprising a piston rod to be moved into the reservoir, e.g. the piston rod is part of the removable reservoir

Abstract

Various methods and devices for driving fluid from a syringe are provided. In one exemplary embodiment, a syringe driver is provided having a frame that is adapted to seat a syringe, a driver that is slidably disposed within the frame and that is adapted to seat a plunger of a syringe, and a puller that is slidably disposed within the frame and that has a latch formed thereon for mating to an engagement element on the frame. The device can also include a force-delivery element, such as a constant force spring, that is coupled to and extends between the driver and the puller. In use, the puller is movable between a first position, in which the force-delivery element is in a resting position, and a second position, in which the latch on the puller mates to the engagement element on the frame to expand the force-delivery element thereby causing the force-delivery element to pull the driver and drive a plunger into a barrel of a syringe seated within the frame to deliver fluid from the syringe to a patient at a constant rate.

Claims

1. A system for driving fluid, comprising:

a syringe having a barrel, a plunger slidably disposed in the barrel, and a luer fitting having a female end coupled to a male luer fitting on a distal end of the barrel for mating the barrel to a fluid conduit; and

a frame having proximal and distal ends, the proximal end adapted to retain the plunger and the distal end having a protrusion formed thereon configured to extend into a non-threaded socket in a male end of the luer fitting to removably mate the barrel to the frame.

2. The system of claim 1, further comprising a fluid conduit mated to the luer fitting and adapted to extend from the luer fitting to a patient.