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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.

Patent No.:

US 11020346 B1

PDFFull Text
Date of Patent:
Jun. 01, 2021

Filed:

Jun. 24, 2015

Rhinal spray nozzle used for medical syringe

Applicant:

Toko Yakuhin Kogyo Kabushiki Kaisha, Osaka, JP;

Inventors:

Taizou Kamishita, Osaka, JP;

Takashi Miyazaki, Osaka, JP;

Shinya Hoshino, Tokyo, JP;

Assignee:

TOKO YAKUHIN KOGYO KABUSHIKI KAISHA, Osaka, JP;

Attorney:

Hamre, Schumann, Mueller & Larson, P.C.

Primary Examiner:

Timothy A Stanis

Int. Cl.
CPC ...
A61M 15/08 (2006.01); A61K 9/12 (2006.01); A61K 47/02 (2006.01); A61K 47/32 (2006.01); B05B 1/34 (2006.01); A61M 11/00 (2006.01); A61K 39/145 (2006.01); A61K 47/10 (2017.01); C12N 7/00 (2006.01); A61K 39/00 (2006.01);
U.S. Cl.
CPC ...
A61K 9/12 (2013.01); A61K 39/145 (2013.01); A61K 47/02 (2013.01); A61K 47/10 (2013.01); A61K 47/32 (2013.01); A61M 11/00 (2013.01); A61M 11/007 (2014.02); A61M 15/08 (2013.01); B05B 1/34 (2013.01); C12N 7/00 (2013.01); A61K 2039/5252 (2013.01); A61K 2039/543 (2013.01); A61K 2039/55505 (2013.01); A61K 2039/55511 (2013.01); A61M 2206/16 (2013.01); A61M 2210/0618 (2013.01); C12N 2760/16034 (2013.01);
Abstract

The present invention has a purpose to achieve desired spray characteristics when a pharmaceutical formulation is sprayed by means of a rhinal spray nozzle used for a metered-dose syringe-based squirt. The present invention relates to a rhinal spray nozzle used for a medical syringe having a tip opening in fluid communication with a syringe barrel for storing a pharmaceutical formulation. The rhinal spray nozzle comprises a hollow nozzle body having a tip portion defining a nozzle orifice thereon, a solid packing rod arranged within the nozzle body, and a nozzle chamber defined between the packing rod and the nozzle body to allow a fluid communication between the tip opening and the nozzle orifice, wherein the formulation comprises the gel material containing viscosity modification agent and carboxy vinyl polymer of which viscosity is modified by applying an exogenous shear force, and wherein the nozzle orifice has a diameter in a range between 0.25 mm and 0.30 mm.

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