Title:
内視鏡用注射針
Document Type and Number:
Japanese Patent JP6382444
Kind Code:
B2
Abstract:
An injection needle for an endoscope includes: an outer and inner sheath; a needle tube; a stopper; an engaging contact portion integrally formed of the same material as the outer sheath, protrudes to an inner side in a radial direction relative to an inner circumferential surface of the outer sheath; and an operating member. A movable range of the operating member in a straight state is made up of a first range and a second range. A length of the second range is greater than a value of a difference between an inner diameter of the outer sheath and an outer diameter of the inner sheath, and a thickness of the engaging contact portion in the direction of the longitudinal axis is greater than a thickness of the inner sheath in a radial direction and a thickness of the outer sheath in the radial direction.
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Inventors:
Kensuke Kamisaka
Koji Tominaga
Koji Tominaga
Application Number:
JP2017518373A
Publication Date:
August 29, 2018
Filing Date:
May 17, 2016
Export Citation:
Assignee:
Olympus Endo Technology America Inc.
International Classes:
A61M5/14
Domestic Patent References:
| JP62002926A | ||||
| JP6081544U | ||||
| JP2001058006A | ||||
| JP2013128567A | ||||
| JP2006095265A |
Foreign References:
| WO2007046444A1 |
Attorney, Agent or Firm:
Sumio Tanai
Suzuki Mitsuyoshi
Tadao Takashiba
Shiro Suzuki
Suzuki Mitsuyoshi
Tadao Takashiba
Shiro Suzuki