Title:
薬剤注入器具
Document Type and Number:
Japanese Patent JP7256345
Kind Code:
B2
Abstract:
To provide a medicine injection tool with a reuse prevention function.SOLUTION: A medicine injection tool for injecting flowable medicine into a body comprises: a long-sized insertion part to be inserted into the body from a tip side; a storage part, formed inside the insertion part, in which flowable medicine is stored; an aperture that is formed at the other end of the insertion part and communicates with the storage part; and a piston that is inserted into the storage part via the aperture to push out flowable medicine to a side of the tip of the insertion part. At the other end of the insertion part is formed a recess 10 capable of housing a rear end 11 of the piston. The recess 10 comprises an engaging protrusion 21 protruding from an inner peripheral surface of the recess toward the inside of the recess. The rear end 11 of the piston comprises a piston fitting part 22 for fitting with the engaging protrusion 21 and is formed so as to be capable of being irreversibly housed in the recess 10 by the piston fitting part 22 fitting with the engaging protrusion 21.SELECTED DRAWING: Figure 7
Inventors:
Yuya Yamada
Application Number:
JP2018247748A
Publication Date:
April 12, 2023
Filing Date:
December 28, 2018
Export Citation:
Assignee:
KOBAYASHI PHARMACEUTICAL CO.,LTD.
International Classes:
A61M3/02; A61M5/315; A61M5/50; A61M31/00
Domestic Patent References:
| JP2014004309A | ||||
| JP2002052081A | ||||
| JP2009543616A | ||||
| JP4675537B2 | ||||
| JP2013172797A |
Attorney, Agent or Firm:
Akihiro Fujii