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. 12, 2002
Filed:
Feb. 06, 2001
Joseph Gross, Moshav Mazor, IL;
Haim Danon, Kiryat Ona, IL;
Elan Corporation, plc, , IE;
Abstract
A needle ( ) for the delivery of a liquid to a subject comprises a shaft ( ) having an internal surface defining a longitudinally extending internal bore open at one end ( ) to receive a liquid supply, the other end ( ) being sharpened for penetration of the skin of the subject. A plurality of apertures ( ) are provided, each in the form of a cut extending across the external surface of the side of the shaft ( ) at a sufficient depth to establish communication with the bore. The external aperture area is approximately three times greater than the internal aperture area, thereby ensuring that the liquid is delivered to a large surface area of tissue to improve absorption and eliminate fluctuations in the delivery rate. The needle ( ) can be mass-produced by aligning a batch of shafts alongside one another and running a grinder across the surfaces of the shafts to create the apertures ( ) in the entire batch of needles simultaneously.