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Inhaler

A technology for inhalation devices and inhalation ports, which is applied in the direction of inhalers, respirators, nebulizers for treatment, etc., can solve the problems of undesired sanitation and low therapeutic efficacy, and achieve the goal of ensuring reproducibility and reducing the amount of inhaled drugs Effect

Inactive Publication Date: 2008-01-30
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Not only does this lead to lower therapeutic efficacy, but it is also undesirable in terms of hygiene

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0036] Fig. 1 partially illustrates an inhalation device as a first embodiment of the present invention. The inhalation device of the first embodiment of the present invention is characterized in that a container 2 serving as a gas storage means is provided at the portion which is conventionally open, in which container 2 is stored user's exhaled breath or other gas. The container 2 is connected to the flow path member 3 in the folded state, and the container 2 is designed so that the patient can send his or her exhaled air from the inhalation port 6 to the container 2 through the flow path. Furthermore, the inhalation device is constructed so as to provide the pressure sensor 5 in the air flow path so as to detect negative pressure generated in the air flow path by patient inhalation, and to atomize the medicine from the spray head 4 to the inside of the nozzle synchronously with the detection. The flow path member 3 is preferably detachably connected to the device main body ...

Embodiment approach 2

[0041] Figures 3 and 4 illustrate a second embodiment in which an air cylinder 7 is used as the gas storage means, replacing the container 2 in Example 1 (the container 2 collapses when the user inhales). In the state where the movable part 8 of the air cylinder 7 is on one side end of the flow path member 3 shown in FIG. Overflow through its openings (air holes), so that the movable part 8 moves through the interior of the cylinder 7, so that exhaled air is stored in the exhaled air storage part 9, resulting in the state shown in FIG. 4 . The exhaled air stored in the exhaled air storage part 9 has a substantially constant temperature and humidity of about 37° C. and about 95%, respectively, regardless of the surrounding temperature and humidity. Thereafter, the patient starts to inhale, so the gas kept at constant temperature and humidity that has been stored in the exhalation storage part 9 flows into the mouth of the patient, where the pressure sensor 5 detects the inhalat...

Embodiment approach 3

[0044] 5 and 6 are sectional views illustrating an inhalation device according to a third embodiment of the present invention. The container 2 in this embodiment is a container made of butyl rubber and has a volume of 500 ml. It has a closing mechanism 11 and an adapter 12 . Container 2 is a paper bag that crumples after the user inhales. The container 2 can be connected to and detached from the flow path member 3 through the adapter 12 . That is, the container 2 can be detachably connected to the flow path member 3 . In a state where the container 2 is separated from the flow path member 3 as shown in FIG. 5 , the gas is kept sealed in the air bag 2 in a constant temperature or constant humidity environment. The gas may be encapsulated by, for example, using a gas injector, a gas cartridge from which a constant temperature or humidity gas is stored, or may be encapsulated by the user's exhalation breath into it. The ambient conditions before which the gas enclosed in the ...

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PUM

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Abstract

To make a user inhale a medicine having a constant particle diameter, an inhaler with which the user inhales the medicine through a suction port (6) has a gas holding part (2) in which exhaled air of the user or other air is to be stored, an air flow path (3) which is connected with the gas holding part and guides the medicine to the suction port by inhalation of the user, and a medicine ejection part (4) from which the medicine is to be ejected to the interior of the air flow path when the user inhales through the air flow path the exhaled air or other air stored in the gas holding part.

Description

technical field [0001] The present invention relates to inhalation devices for inhaling aerosol medicaments and the like. Background technique [0002] Treatments for users that can utilize information databases such as electronic medical records are increasingly being realized by means of inhalation devices with which users inhale to ingest medicines. Such inhalation devices are also portable terminals that combine i) a memory element that stores information about individual users, including information about the user's medical records and prescriptions, and ii) ejects an aerosolized medicament to enable the user to Inhale it with a nebulizer. It also has an atomization control element that controls the inhalation device to aerosolize the drug according to the user's inhalation or inhalation characteristics so that the user can inhale the drug according to the information on the prescription (see International Publications WO95 / 01137 and WO02 / 04043). [0003] Now, in medi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M15/00A61M16/00A61M11/00
Inventor 金子秀树
Owner CANON KK
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