CANNULA OF DRUG SOLUTION ADMINISTRATION DEVICE AND DRUG SOLUTION ADMINISTRATION DEVICE INCLUDING CANNULA

Title:

CANNULA OF DRUG SOLUTION ADMINISTRATION DEVICE AND DRUG SOLUTION ADMINISTRATION DEVICE INCLUDING CANNULA

Document Type and Number:

WIPO Patent Application WO/2023/181799

Kind Code:

A1

Abstract:

The present invention pertains to a cannula that is indwelt under the skin during administration of a drug solution, and that enables the drug solution to be administered in a stable manner.　The cannula (21) of a drug solution administration device comprises an outer wall surface (21b) facing the exterior and an inner wall surface (21a) forming a flow path for channeling the drug solution to the exterior, the outer wall surface of the tip section (21e) of the cannula being chamfered to prevent blockage of the flow path.

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Inventors:

MIZUTANI MOTOKI (JP)
KATO HIROKI (JP)
UCHIYAMA JOJI (JP)

Application Number:

PCT/JP2023/007221

Publication Date:

September 28, 2023

Filing Date:

February 28, 2023

Export Citation:

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Assignee:

TERUMO CORP (JP)

International Classes:

A61M5/142

Domestic Patent References:

WO2020195033A1

2020-10-01

Foreign References:

JP2019533512A	2019-11-21
US4588398A	1986-05-13

Attorney, Agent or Firm:

IBC (JP)

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