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. 03, 2020

Filed:

Jan. 14, 2019
Applicant:

Daicel Corporation, Osaka-shi, Osaka, JP;

Inventor:

Shingo Oda, Tatsuno, JP;

Assignee:

Daicel Corporation, Osaka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61M 5/30 (2006.01); A61M 5/46 (2006.01); A61M 5/20 (2006.01);
U.S. Cl.
CPC ...
A61M 5/30 (2013.01); A61M 5/46 (2013.01); A61M 5/2046 (2013.01);
Abstract

A needleless syringe for injecting an injection objective substance into an injection target area of a living body is provided. The syringe includes an enclosing unit enclosing the injection objective substance, and an ignition device including an ignition charge and flowing an ignition current so that the ignition charge is combusted. The syringe also includes a pressurizing unit pressurizing the injection objective substance, and a flow passage unit defining a flow passage so that the pressurized injection objective substance is allowed to inject to the injection target area. The pressurizing unit raises a pressure applied to the injection objective substance to a peak pressure for the injection objective substance to penetrate through a surface of the injection target area and then lowers the pressure applied to the injection objective substance to a waiting pressure within 2 msec after the ignition current was allowed to flow to the ignition device.


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