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:
Sep. 05, 2017
Filed:
Nov. 21, 2008
Annica Wayman, Morris Plains, NJ (US);
Michael Meehan, Glen Rock, NJ (US);
Christina D'arrigo, Hoboken, NJ (US);
Douglas Tyukody, Waldwick, NJ (US);
Annica Wayman, Morris Plains, NJ (US);
Michael Meehan, Glen Rock, NJ (US);
Christina D'Arrigo, Hoboken, NJ (US);
Douglas Tyukody, Waldwick, NJ (US);
Becton, Dickinson and Company, Franklin Lakes, NJ (US);
Abstract
A stylet for insertion within a cannula interior of a needle is disclosed. The stylet includes a solid elongated shaft having a proximal end adapted for engagement with a needle hub, and a distal end having a surface modified profile. The surface modified profile increases the penetration force required to penetrate human skin. The ratio of the penetration force of a stylet having an unmodified distal end to the stylet having a surface modified profile is at least 1:1.4, or greater. The surface modified profile may be a roughened surface, a buffed surface and/or a blunted surface. The surface modified profile may include a yieldable material disposed over at least a portion of the distal end. A needle assembly having a stylet having a surface modified profile is also disclosed.