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:
Apr. 22, 2003
Filed:
Apr. 25, 2001
Applicant:
Inventors:
Akio Higuchi, Tokyo, JP;
Hayato Hyugaji, Tokyo, JP;
Assignee:
Dr. Japan Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M 5/32 ;
U.S. Cl.
CPC ...
A61M 5/32 ;
Abstract
A outer needle of an anesthetic needle assembly to be injected into an epidural area, has a distal end which is cut and bent to form an annular cutting edge. The distal end is gently bent so that an anesthetic needle having a forward end can slide readily out of the annular cutting edge. The annular cutting edge has a wave-like configuration with an extended circular or rectangular annulus with round corners and outwardly expanded sides.