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. 04, 2020
Filed:
Oct. 24, 2016
Terumo Kabushiki Kaisha, Shibuya-ku, JP;
TERUMO KABUSHIKI KAISHA, Shibuya-Ku, Tokyo, JP;
Abstract
A medical needle manufacturing method, a medical needle manufacturing apparatus, and a medical needle are disclosed capable of suppressing the generation of a level difference and burrs/flashes in a boundary section between a needle hub and a needle body in an inner peripheral portion of the needle hub. The manufacturing method of a medical needle includes a large-diameter-portion molding step of molding, by a core pin, a large-diameter portion in a proximal portion of a needle body; a core-pin backward-movement step of moving backward the core pin by a predetermined distance relatively to the needle body; and an injection molding step of molding a needle hub by injecting a resin into an injection molding mold.