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.

Date of Patent:
Nov. 29, 2022

Filed:

Mar. 11, 2020
Applicant:

Terumo Kabushiki Kaisha, Tokyo, JP;

Inventors:

Kentaro Nakajima, Yamanashi, JP;

Yoichiro Iwase, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61M 5/32 (2006.01);
U.S. Cl.
CPC ...
A61M 5/3245 (2013.01); A61M 5/3271 (2013.01); A61M 5/3293 (2013.01); A61M 2005/3217 (2013.01); A61M 2005/3235 (2013.01);
Abstract

A needle assembly is disclosed, which includes a needle protection member and a rotor. The rotor has a rotor body and a restriction portion. When the needle protection member in the initial state is displaced from the protection position to a use position and returns to a protection position, the restriction portion is displaced from the initial position to the lock position by the rotation of the rotor body with respect to the needle protection member. A needle hub has a displacement prevention portion that prevents the needle protection member from being displaced from the protection position to the use position again by contacting the restriction portion at the lock position.


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