LIQUID MEDICINE ADMINISTRATION DEVICE

Title:

LIQUID MEDICINE ADMINISTRATION DEVICE

Document Type and Number:

WIPO Patent Application WO/2024/004329

Kind Code:

A1

Abstract:

A liquid medicine administration device (10) comprises a liquid medicine container (16), a gasket (18), a plunger (68), a pressing mechanism (20), a drive mechanism (22), a housing (14), and a rotation restriction part (26). The rotation restriction part (26) is fixed to the plunger (68) and includes a restriction main body (118) having at least a portion thereof extending in the axis direction of a feed screw shaft (70) of the pressing mechanism (20), and a restriction support part (120). The restriction support part (120) supports the restriction main body (118) such that, in a state in which movement of the restriction main body (118) in the rotation direction of the feed screw shaft (70) is obstructed, the restriction main body (118) can move in the distal-end direction as the plunger (68) moves in the distal-end direction.

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Inventors:

KONDO AKIRA (JP)

Application Number:

PCT/JP2023/014960

Publication Date:

January 04, 2024

Filing Date:

April 13, 2023

Export Citation:

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Assignee:

TERUMO CORP (JP)

International Classes:

A61M5/142; A61M5/145

Domestic Patent References:

WO2020202852A1	2020-10-08
WO2016051999A1	2016-04-07
WO2019065946A1	2019-04-04

Foreign References:

JP2020110220A	2020-07-27
JP2015181869A	2015-10-22

Attorney, Agent or Firm:

TOHO INTERNATIONAL PATENT & LAW OFFICE (JP)

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