Medicine inhaler and medicine supply method
AssigneePublic University Corporation Nagoya City University
InventorKatsushi Kunimoto
Life of this patent
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Abstract
It becomes possible to stably deliver an inhaled particulate medicine to a targeted part for administration while reducing burdens on a patient. When supplying the particulate medicine into a body by an airflow, a multi-layer flow composed of a core airflow (A) and a clad airflow (B) outside the core airflow is used as the airflow. The medicine is dispersed in the core airflow (A) and velocity of the clad airflow (B) is set higher than that of the core airflow (A). The medicine dispersed in the core airflow (A) reaches the targeted part for administration while the medicine is protected by the clad airflow (B) without contacting a larynx and the like. A cross-sectional area of the airflow is set smaller than that of the larynx. The airflow is supplied to an upper side of the larynx.
Claims12
A medicine inhaler that supplies a particulate medicine into a body by an airflow, comprising:
- a first airflow forming section that forms a core airflow;
- a second airflow forming section that forms a clad airflow outside the core airflow, the clad airflow having higher flow velocity than the core airflow;
- a medicine supply section that supplies the medicine into the core airflow to disperse the medicine into the core airflow;
- and
- an introduction section that introduces the core airflow, in which the medicine is dispersed, and the clad airflow into the body.
A medicine supply method for supplying a particulate medicine into a body by an airflow, comprising the steps of:
- providing the airflow as a multi-layer stream containing a core airflow and a clad airflow outside the core airflow;
- dispersing the medicine into the core airflow;
- and
- making flow velocity of the clad airflow higher than flow velocity of the core airflow.
Dependencies are inferred from the claim text.