Patent ID: 6368308
Filing Date: 2002-04-09
Classification: A61M

Abstract:
A syringe, comprising:a needle; a hub for holding said needle; a barrel having a leading end to which said hub is mounted; an elongate plunger having a leading end slideably mounted within said barrel and a trailing end that is external to said barrel; a slide member that slideably engages an external surface of said barrel; and yoking means for interconnecting said slide member to said trailing end of said plunger; said slide member adapted to be controlled by a digit of a user so that manipulation of said slide member controls an instantaneous position of said plunger; said slide member being positioned at a leading end of said barrel; said yoking means including an elongate rod disposed in substantially parallel relation to said plunger and interconnecting means for connecting said elongate rod to said plunger, said elongate rod having a leading end secured to said slide member and a trailing end connected to said trailing end of said plunger; said interconnecting means including a first transversely disposed flange secured to the trailing end of said elongate rod, a second transversely disposed flange secured to the trailing end of said plunger, said first and second transversely disposed flanges having a diameter sufficient to cause them to abut one another, and adhesive means for securing said flanges to one another; whereby said syringe is adapted to be held in a single preselected hand; and whereby no change in hand position is needed between a retraction of said plunger in a leading-to-trailing direction relative to said barrel and advancement of said plunger in a trailing-to-leading direction relative to said barrel.