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. 10, 2001
Filed:
Nov. 05, 1999
Kanji Matsutani, Takanezawa-machi, JP;
Takayuki Matsumoto, Takanezawa-machi, JP;
Mani, Inc., Tochigi, JP;
Abstract
A suture needle has a unique structure for reducing impalement resistance. The suture needle is formed with a base end portion formed at an end of the suture needle for engaging a suture thread, a tip portion formed at another end of the suture needle for impaling a tissue, and a tapered portion extending to the tip portion. The tapered portion has a cross-section without a cutting edge and a plurality of roughened regions formed in stripes extending in a substantially axial direction of the tapered portion. The roughened regions are provided solely on the tapered portion of the suture needle. The surface roughness of the roughened regions on the suture needle is about 2 &mgr;m-15 &mgr;m.