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:
Jun. 06, 2023

Filed:

Oct. 24, 2018
Applicant:

Terumo Kabushiki Kaisha, Tokyo, JP;

Inventors:

Katsuyuki Takeuchi, Tokyo, JP;

Eiji Yagishita, Shizuoka, JP;

Nobukazu Akaike, Shizuoka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61M 5/31 (2006.01); A61M 5/00 (2006.01); A61M 5/32 (2006.01); A61M 5/34 (2006.01); B32B 25/08 (2006.01);
U.S. Cl.
CPC ...
A61M 5/3129 (2013.01); A61M 5/001 (2013.01); A61M 5/002 (2013.01); A61M 5/3202 (2013.01); A61M 5/345 (2013.01); A61M 2005/3126 (2013.01); A61M 2005/3131 (2013.01); A61M 2205/0238 (2013.01); B32B 25/08 (2013.01);
Abstract

A syringe barrel includes: a hollow body portion that is configured such that a gasket is slidably insertable therein. The syringe barrel is made of a resin that has a total light transmittance of 80% or more. A scale is disposed at an inner circumferential surface or an outer circumferential surface of the body portion, the scale being visible from an outside of the syringe barrel and being configured to indicate a liquid amount. The scale is formed by (i) a stepped structure having a step height in a range of 0.001 to 0.15 mm in a radial direction, and/or (ii) an embossment.


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