The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 11, 1997
Filed:
Jun. 07, 1995
Raymond A Turner, Memphis, TN (US);
The University of Memphis, Memphis, TN (US);
Abstract
The present invention provides a disposable hypodermic syringe which has an elongate, rigid, hollow chamber with a longitudinal axis, a posterior opening and an anterior opening smaller than the posterior opening. The syringe also has a hollow needle axially disposed within the anterior opening. The first end of the needle is outside the chamber in fluid communication with an opposed second end. The second end of the needle is disposed within the chamber and in fluid communication therewith. The syringe also includes an axially slidable plunger in a fluid-tight seal within the chamber for drawing a fluid into the chamber through the first end of the needle and for expelling the fluid from the chamber through the second end of the needle. The plunger has a anterior end and a posterior end and comprises a grip for the user which extends out of the posterior opening of the chamber and a sloped surface for deflecting the second end of the needle during operation of the syringe. The plunger also includes a nipple for retracting the needle. Complementary to the plunger, the second end of the needle includes a surface for means for engaging the sloped surface on the plunger and a barb for engaging the nipple. Methods of using the above disposable hypodermic syringe.