Title:
PRESSURE MEASURING CATHETER
Document Type and Number:
WIPO Patent Application WO/2018/047796
Kind Code:
A1
Abstract:
[Problem] To provide a pressure measuring catheter capable of more accurately performing pressure measurement. [Solution] A catheter main body 11 has a tubular shape with an outer diameter of 0.38 mm to 0.89 mm, and has, in a side surface, an opening 23 interconnected with a hollow section 11a. A pressure sensor 12 is disposed in the hollow section 11a of the catheter main body 11 so that pressure can be measured through the opening 23. The pressure sensor 12 is configured so as to measure pressure on the basis of the displacement of a diaphragm 25 which is a thin membrane provided at a tip end of the sensor. In the pressure sensor 12, the diaphragm 25 is disposed so as to be perpendicular to the longitudinal direction of the catheter main body 11, be on the side of the opening 23, and be at a position displaced from the opening 23 along the longitudinal direction of the catheter main body 11.
Inventors:
HAGA YOUICHI (JP)
MATSUNAGA TADAO (JP)
HANZAWA TAKASHI (JP)
MATSUNAGA TADAO (JP)
HANZAWA TAKASHI (JP)
Application Number:
PCT/JP2017/031878
Publication Date:
March 15, 2018
Filing Date:
September 05, 2017
Export Citation:
Assignee:
UNIV TOHOKU (JP)
International Classes:
A61B5/00; G01L7/00; G01L9/00
Foreign References:
| JP2005291945A | 2005-10-20 | |||
| JPH11188010A | 1999-07-13 | |||
| JPS5921495B2 | 1984-05-21 |
Attorney, Agent or Firm:
SUDA Atsushi et al. (JP)
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