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Title:
DRIVING DEVICE FOR SYRINGE PUMP, AND SYRINGE PUMP
Document Type and Number:
Japanese Patent JP2010011552
Kind Code:
A
Abstract:

To provide a driving device for syringe pumps designed to move a pushing element of a syringe based on the principle of a linear motor, which smoothly moves the pushing element with a small moving amount per step without requiring precision machining to reduce costs while securing sufficient force to move the pushing element.

The driving device for syringe pumps includes: a push member 20 formed in contact with the pushing element of a syringe; permanent magnets 30, 31 arranged in line in the direction of moving the pushing element; multiple solenoids A, B, etc., arranged opposite to the permanent magnets 30, 31; a slide member 22 on which the push member 20 and the solenoids A, B, etc., are installed; and a control unit configured to individually supply excitation current to the solenoids A, B, etc. The installation positions of the solenoids A, B, etc., are shifted in the direction of movement of the pushing element. The control unit sequentially supplies excitation current to the solenoids A, B, etc.


Inventors:
Ikeda, Atsushi
Application Number:
JP2008000164865
Publication Date:
January 14, 2010
Filing Date:
June 24, 2008
Export Citation:
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Assignee:
JMS CO LTD
International Classes:
H02K41/03; F04B13/00
Domestic Patent References:
JP2003180828A
JP2003201958A
JP2000125536A
JP2005051884A
JPH01286765A
JP2002171741A
JPH01209947A
Attorney, Agent or Firm:
前田 弘
竹内 宏
嶋田 高久
竹内 祐二
今江 克実
藤田 篤史
二宮 克也
原田 智雄
井関 勝守
関 啓
杉浦 靖也