Title:
ADMINISTRATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/038800
Kind Code:
A1
Abstract:
Provided is an administration device having a novel structure that enables anyone to uniformly jet and stably administer a substance to be administered such as a powdery drug. This device is a single-use type administration device 10 for administering a preset amount of a substance to be administered, such as a powdery drug, into the nasal cavity, etc. The administration device 10 is equipped with: a pump member 20 which has a squeezed shape as a whole and deforms when pressed to reduce the internal volume thereof; and a cylindrical guide member 30 which is positioned inside the pump member 20 and guides the deformed part of the pump member 20. The pump member 20 is in a shape having a tapered large-diameter part 21 and a tapered small-diameter part 22 which has a smaller diameter than the large-diameter part 21. Between the large-diameter part 21 and the small-diameter part 22, a step 23, wherein the degree of squeezing changes in the course of the squeezed shape, may be formed.
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Inventors:
HARUTA SHUNJI (JP)
MISHIMA HIDEAKI (JP)
MISHIMA HIDEAKI (JP)
Application Number:
PCT/JP2023/028899
Publication Date:
February 22, 2024
Filing Date:
August 08, 2023
Export Citation:
Assignee:
SHIN NIPPON BIOMEDICAL LABORATORIES LTD (JP)
International Classes:
A61M13/00; A61M11/00
Domestic Patent References:
| WO2019054121A1 | 2019-03-21 |
Foreign References:
| JP2016523647A | 2016-08-12 | |||
| JP2002505981A | 2002-02-26 | |||
| JPS613985U | 1986-01-11 |
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (JP)
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