Title:
薬液投与装置
Document Type and Number:
Japanese Patent JP6721477
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a medical liquid administration device capable of accurately detecting an amount of medical liquid stored in a medical liquid storage part.SOLUTION: A medical liquid administration device 1 includes a medical liquid storage part 13, a plunger member 18, a capacity measuring part 31, and an arithmetic part. The capacity measuring part 31 includes a plurality of electrodes 31a and 31b disposed, with their facing an external wall of the medical liquid storage part 13. The capacity measuring part 31 measures an electrostatic capacity between the plurality of electrodes 31a and 31b. The arithmetic part calculates an amount of the medical liquid filling the medical liquid storage part 13 from the electrostatic capacity measured by the capacity measuring part 31.SELECTED DRAWING: Figure 1
Inventors:
Sugawara Yoshihisa
Application Number:
JP2016192053A
Publication Date:
July 15, 2020
Filing Date:
September 29, 2016
Export Citation:
Assignee:
Terumo Corporation
International Classes:
A61M5/168; A61M5/145
Domestic Patent References:
| JP2015512509A | ||||
| JP7128114A | ||||
| JP2015532136A | ||||
| JP2009529999A |
Attorney, Agent or Firm:
Shinto International Patent Office