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:
Nov. 28, 2023
Filed:
Dec. 08, 2021
Ethicon, Inc., Somerville, NJ (US);
Duan Li Ou, Warren, NJ (US);
Christophe Vailhe, Hillsborough, NJ (US);
Ethicon, Inc., Raritan, NJ (US);
Abstract
A blackened surgical needle made by the method of treating blackened surgical needles, comprising the steps of: a. determining that a blackening process may have produced loose black oxide particles on the blackened surgical needle; b. placing at least one blackened surgical needle having loose black oxide particles on its surface into a bath, wherein the bath comprises: i. an effective amount of citric acid to remove loose black oxide particles from the at least one blackened surgical needle; and ii. a source of ultrasound; and c. applying the ultrasound in the bath for a time sufficient to remove loose black oxide particles from the surface of the at least one needle and wherein the contents of the bath are maintained at a pH below 3.25.