Title:
DRUG SOLUTION INJECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/209311
Kind Code:
A1
Abstract:
Provided is a drug solution injection device that includes: an injection needle (101) made of non-magnetic material, such as, sapphire and sending a drug solution; and an ultrasonic transducer (102) applying ultrasonic vibration to the injection needle (101). The drug solution injection device further includes a fixation plate (103) fixed to the ultrasonic transducer (102) and made of non-magnetic metal. The injection needle (101) is fixed to the fixation plate (103). The ultrasonic transducer (102) is fixed on a base (104) made of non-magnetic metal. The ultrasonic transducer (102) comprises a plurality of piezoelectric elements (121) and (122) that are stacked such that polarization directions thereof are opposite to each other.
Inventors:
TOMINAGA TEIJI (JP)
SAITO RYUTA (JP)
SATO AYA (JP)
YOSHIKAWA AKIRA (JP)
KAMADA KEI (JP)
OHASHI YUJI (JP)
INOUE KENJI (JP)
YOKOTA YUUI (JP)
HAGA YOICHI (JP)
MATSUNAGA TADAO (JP)
TSURUOKA NORIKO (JP)
SAITO RYUTA (JP)
SATO AYA (JP)
YOSHIKAWA AKIRA (JP)
KAMADA KEI (JP)
OHASHI YUJI (JP)
INOUE KENJI (JP)
YOKOTA YUUI (JP)
HAGA YOICHI (JP)
MATSUNAGA TADAO (JP)
TSURUOKA NORIKO (JP)
Application Number:
PCT/JP2017/020856
Publication Date:
December 07, 2017
Filing Date:
June 05, 2017
Export Citation:
Assignee:
UNIV TOHOKU (JP)
International Classes:
A61M5/158; A61B5/055; A61M5/172
Domestic Patent References:
| WO2015049886A1 | 2015-04-09 | |||
| WO2008102817A1 | 2008-08-28 | |||
| WO2015063910A1 | 2015-05-07 |
Foreign References:
| JPH03284264A | 1991-12-13 | |||
| JP2003079728A | 2003-03-18 | |||
| JP2009545368A | 2009-12-24 | |||
| JP2009540887A | 2009-11-26 |
Attorney, Agent or Firm:
YAMAKAWA,Shigeki et al. (JP)
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