Nipro Corporation

Yoshikuni Uchida

Hirokazu Sutou

Nobuaki Inage

Youta Sekiduka

Yoshio Higaki

A needle assemblyincludes a hubretaining a cannula, a protective unitadvancing and retracting to surround the forward end of the cannula, and a cylindrical portionsurrounding the outer periphery of the protective unit; the protective unithas a construction in which a protective coverprotruding from and retracting into the cylindrical portionis formed integrally with a spring portionso as to be in series therewith, with the huband the cylindrical portionbeing coupled together to form a hub member.

Needle assembly

Needle for medical purposes

Blood sampling needle

Puncture needle for medical purposes

A blood collection needle which includes a needle for puncturing a patient's skin; a needle for puncturing a rubber plug which seals a blood collection tube; a hub for securing respective proximal portions of the two needles; a resilient cap fitted to the hub; and a valve member disposed in the internal passage of the hub which allows only blood flow from the needle used to puncture a patient's skin to the needle used to puncture the rubber plug which seals the blood collection tube. The valve member includes a bowl portion disposed so that the opening is faced toward the needle for puncturing the rubber plug and a guiding portion provided on a bottom surface of the bowl portion for causing the valve member to move to a predetermined position which closes the internal passage.

Blood collection needle

Growing community of inventors

Gunma-ken, Japan

Yoshikuni Uchida