Title:
NEEDLELESS INJECTOR
Document Type and Number:
Japanese Patent JP3560889
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a needleless injector in which a piston rod is not erroneously started even when a release switch for starting it for injecting a liquid medicine is touched after the liquid medicine is sucked and before it is injected.
SOLUTION: An L-shaped recessed part 8a at a rear part of a rear side cylindrical part 8, and a protruded part at a release switch 7 are provided, and torque of the rear side cylindrical part 8 in retracting is transmitted through a ball 11 to the release switch 7, so the protruded part 7a is moved to an advance prohibiting zone in the recessed part 8a. The release switch 7 is thus automatically prevented from being pushing in, and erroneous start of a piston rod 5 is prevented.
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Inventors:
Mitsuru Hoshi
Haruhide Udagawa
Masahiko Yoneya
Haruhide Udagawa
Masahiko Yoneya
Application Number:
JP2000015289A
Publication Date:
September 02, 2004
Filing Date:
January 25, 2000
Export Citation:
Assignee:
SHIMADZU CORPORATION
Mitsuru Hoshi
Nippon Pharmaceutical Co., Ltd.
Mitsuru Hoshi
Nippon Pharmaceutical Co., Ltd.
International Classes:
A61M5/30; (IPC1-7): A61M5/30
Domestic Patent References:
| JP11197242A | ||||
| JP61268265A | ||||
| JP11309211A | ||||
| JP10512165A | ||||
| JP55107113U | ||||
| JP63035261A |
Attorney, Agent or Firm:
Toshifumi Kita
Hiroyuki Eguchi
Hiroyuki Eguchi