Devices and methods for delivering particles into the upper respiratory tract

A delivery device, upper respiratory tract technology, applied in the direction of respirator, spray delivery, powder delivery, etc.

Active Publication Date: 2021-05-11
SERVICES MEDICAUX ARNOLD & JOAN ZIDULKA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

As a result, treatments often have limited effectiveness

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  • Devices and methods for delivering particles into the upper respiratory tract
  • Devices and methods for delivering particles into the upper respiratory tract
  • Devices and methods for delivering particles into the upper respiratory tract

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Embodiment Construction

[0029] The present invention relates to the medical field, and more particularly, to the delivery of particles to the respiratory tract. It is an object of the present invention to provide a method of efficiently depositing particles in the oral cavity, laryngeal cavity, pharynx and nasal cavities with limited deposition in the trachea, lower respiratory tract and lungs.

[0030] see figure 1 , which shows the airway. It is sometimes desirable to deliver particles of a substance to the oral cavity 302, laryngeal cavity 304, pharyngeal cavity 306, nasal cavity 308 for the treatment of medical conditions of the upper respiratory tract, such as nasal rhinorrhea or upper respiratory cough syndrome, to improve the condition of the upper respiratory tract. conditions, or for rapid delivery into the bloodstream. Nasally inhaled airflow of the substance is often blocked in the anterior region of the nasal cavity 308 due to physiology, especially in people with rhinitis, which preven...

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Abstract

The present invention provides a method of delivering a substance in aerosol or powder form to the upper respiratory tract. The substance is taken orally into the throat via the pharynx and exhaled through the nose to minimize inhalation into the lungs, thereby achieving deposition of particles in the upper airways with minor deposition in the trachea, lower airways and lungs . The present invention also provides an oral delivery device having a mouthpiece for orally inhaled material flow into the upper airway and a flow restrictor for minimizing the restricted flow of inhaled material to the trachea, lower airway and lungs, It enables deposition of particles in the upper respiratory tract with minor deposition in the trachea, lower respiratory tract and lungs. The present invention also provides an oral delivery device having a mouthpiece for flowing a substance into the upper airway, and a flow generator for pressurizing the substance through the upper airway.

Description

[0001] This application claims priority to US Provisional Application 62 / 312878, filed March 24, 2016. technical field [0002] The present invention relates to the field of medicine and more specifically to the field of delivery of particles in the respiratory tract. Background technique [0003] Upper respiratory cough syndrome causes chronic cough and pharyngeal discharge. These syndromes are often attributable to nasal drip and rhinitis, which is an inflammation of the mucous membranes of the nasal cavity that can block the nasal airways. [0004] One mainstay of treatment consists of nasal infusion of nebulized corticosteroids. The patient sprays the corticosteroid through the nostrils and inhales, whereby the stream of corticosteroid particles will travel through the nose, into the oropharynx, and possibly into the laryngeal cavity to eliminate, or at least reduce, the symptoms of upper airway cough syndrome. However, the flow of particles is often blocked in the fro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M15/00A61M11/00
CPCA61M2205/581A61M11/007A61M15/0016A61K9/0075A61K9/0078G16H20/13A61M11/008A61M15/002A61K31/58A61M15/0086A61M15/009A61M2202/064A61M2210/065A61P11/02A61P11/14A61P37/08G16H20/10H04L63/1416H04L63/1425H04L63/1433H04L67/02A61M15/0021A61M16/0003A61K9/0073A61M16/14A61M2210/0618A61M2210/1028
Inventor 阿诺尔德·兹杜卡
Owner SERVICES MEDICAUX ARNOLD & JOAN ZIDULKA INC
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