Other

Unisia Jecs Corporation

Dott Limited Company

Yoshiyuki Yazawa

Hisatomo Ohki

Shigemi Nakamura

Kazunori Ishizeki

Akira Yanagawa

Mitsuru Yokobori

A blister pack for a inhalant medicator has a plurality of medical powder storage chambers spaced apart from each other in a circumferential direction. The inhalant medicator includes a pricking tool with a pair of parallel pins that prick inflow and outflow holes in one of the medical powder storage chambers during a preliminary operation of inhalant medication. The inflow and outflow holes are spaced apart from each other by a predetermined distance in a direction parallel to a lid panel of the blister pack to produce turbulent airflow within the medical powder storage chamber during inhalation during which the medical powder is inhaled by a patient's breathing. The medical powder storage chambers are dimensioned and designed to properly regulate or control properties of the airflow passing through the medical storage chamber, to ensure the airflow is suitable for the medical powder storage chamber.

Inhalant medicator

An inhalator including an inhalator body including a powder receiving chamber for receiving a powder, an air-powder mixture reservoir for temporarily storing an air-powder mixture flowing from the powder receiving chamber, and a diluent air passage for introducing a diluent air into the air-powder mixture reservoir. The air-powder mixture is formed within the powder receiving chamber when an air is introduced into the powder receiving chamber. The air-powder mixture within the air-powder mixture reservoir is admixed with a diluent air introduced thereinto through the diluent air passage. The diluted air-powder mixture is discharged from an air-powder mixture outlet into a user's oral or nasal cavity. A powder composition for inhalators includes at least two kinds of fine particles different in particle diameter.

Inhalator for administering powder composition

A diffusion chamber block is provided in a block mounting hole A of an inhalant port , and a granular medicine diffusion chamber is formed in the diffusion chamber block . The granular medicine diffusion chamber is formed at a side of the inhalant port with a granular medicine inflow opening A and at a side of a capsule housing hole with a granular medicine outflow opening B. A diffusion chamber in flow passage is provided to communicate an outflow air passageway with the granular medicine inflow opening A, whereas a diffusion chamber outflow passage is provided to communicate the granular medicine outflow opening B with the inhalant port . When inhaling granular medicines in the capsule housing hole via the inhalant port by way of breathing action, there results in counter-flow vortex within the granular medicine diffusion chamber . The counter-flow cortex acts to finely break and atomize massive granular medicines, thus promoting atomization of the granular medicines.

Inhalation type drug dispenser

An inhalant medicator includes a medicator body which is formed therein with a cylindrical fit hole , an inhalant port , an inflow air passageway , and an outflow air passageway , and a medical powder storage cylindrical member which is installed or fitted into the cylindrical fit hole in a manner so as to open or close the air passageways and with respect to a medical powder storage chamber . The inhalant medicator is constructed by two component parts, namely the medicator body and the medical powder storage cylindrical member , thus ensuring simplified structure and reduced production costs. Additionally, powder-and-granular medicine or medical powder is tightly encapsulated within the medical powder storage chamber by means of the medical powder storage cylindrical member , thus preventing loss of flow of the medical powder

An inhalant medicator comprises a medicator body formed at one axial end with a capsule housing hole and at another axial end with an inhalant port, an inflow air passageway having an axial inflow passage extending in an axial direction of the medicator body and a first pin insertion hole extending in a radial direction of the medicator body for communicating the capsule housing hole with the atmosphere, an outflow air passageway having an outflow passage extending in the axial direction of the medicator body and a second pin insertion hole extending in the radial direction of the medicator body for communicating the capsule housing hole with the inhalant port, and a boring tool having pins insertable toward a capsule through the first and second insertion holes for pricking holes in the capsule accommodated in the capsule housing hole with the pins. Also provided is a flow-constriction orifice ( A, A; C, C; C, C; ) disposed in at least one of the inflow and outflow air passageways and having an orifice size less than a flow passage area of each of the holes H.

Suction type medicator

An inhalant medicator comprises a medicator body having a granular medicine accommodation chamber and an inhalant port, and air passageways disposed in the medicator body and communicating the inhalant port via the granular medicine accommodation chamber to the atmosphere for supplying granular medicines into the inhalant port. Also provided is a granular medicine diffusion means located downstream of the granular medicine accommodation chamber for efficiently diffusing the granular medicines. A cylindrical adapter,is detachably installed in the inhalant port,The granular medicine diffusion means comprises a granular medicine diffusion chamber,formed in the adapter, an adapter inlet passageway tangentially radially extending from the circumference of the diffusion chamber,for creating turbulent flow in the diffusion chamber, and an adapter outlet passageway intercommunicating the diffusion chamber and the inhalant port and having a diametrically-enlarged outlet passage portion, for good dispersion of the granulated medicines flowing out of the diffusion chamber into the inhalant port.

A medicine administering device for nasal cavities, comprising a capsule holding section formed with a capsule containing powder-state medicine. An air supply section is connected to the lower end of the capsule holding section and formed with an air supply passage which is in communication with the capsule accommodating chamber. A branched passage section is connected to the upper end of the capsule holding section and has an air flow passage in communication with the capsule accommodating chamber. The air flow passage is bifurcated to form first and second outlet passage portions which are arranged to form a generally Y-shape. First and second medicine passages are formed such that air from the branched passage section flows therethrough to carry the medicine in the capsule into right-side and left-side nasal cavities of a patient. The first and second passages are respectively in communication with the first and second outlet passages of the branched passage section. First and second spraying holes are respectively in communication with the first and second medicine passages, the medicine from the first medicine passage and the medicine from the second medicine passage being sprayed respectively from the first and second spraying holes. The first and second spraying holes respectively have first and second axes which are separate from each other by a distance ranging from 12 to 25 mm.

Medicine administering device for nasal cavities

An inhalation type medication delivery device includes a dispenser body having a powder containment chamber at one axial side thereof and an inhalation port for drawing in a powder type medication on the another. An attached lid is provided on the dispenser body for opening and/or closing the powder containment chamber. In addition, an air passage is defined in the body allowing a powder type medication to be introduced into an airflow toward the inhalation port according to inhalation by a user. One end of the air passage opens through the lid towards the outside atmosphere and the other end communicates with the inhalation port while passing through the powder containment chamber. Also, a check valve is installed in the lid to prevent air drawn into said inhalation port from flowing in an outward direction opposite a medication delivery direction toward the inhalation port. Additional efficiency may be achieved by further providing a supplementary passage communicating between the inhalation port and the outside atmosphere independently of the air passage to generate additional suction force during inhalation.

Growing community of inventors

Gunma, Japan

Yoshiyuki Yazawa