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:
Sep. 03, 2024

Filed:

Sep. 10, 2019
Applicant:

Circulus Inc., Tokyo, JP;

Inventor:

Jun Ueki, Yokohama, JP;

Assignee:

Circulus Inc., Tokyo, JP;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A61M 5/145 (2006.01); A61M 5/315 (2006.01);
U.S. Cl.
CPC ...
A61M 5/14546 (2013.01); A61M 5/1456 (2013.01); A61M 5/31515 (2013.01);
Abstract

An injection system has: a gasket having a plurality of engaging claws, wherein each of the engaging claws includes an inner surface Swhich defines a hole H having an inlet with an enlarged diameter and an outer surface Sinclined in a direction away from a perpendicular line P passing through a center of the hole H, and the engaging claws are to be displaced between a widened position and a narrowed position; a rain to be inserted into the hole H so as to engage with the engaging claws; a cylinder, into which the gasket is to be inserted, contacting the outer surfaces S; and an injection device configured to move the ram forward and injecting a chemical solution in the cylinder. An annular groove which serves as a starting point of deformation of the engaging claws is formed on the gasket.


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