ENDOSCOPE PROBE FOR MRI AND MRI DEVICE USING THE ENDOSCOPE PROBE

Japanese Patent JP3231501

B2

PURPOSE: To carry out the photographing of the wall of a blood vessel and the measuring of the blood pressure concurrently by composing an endoscope for MRI and a sensor for blood pressure measuring integrally, and inserting such a device to a measuring part.
CONSTITUTION: The cable 32 for power feeding of a loop antenna 31 is formed along a catheter 30 so as to integrate an endoscope for MRI and a catheter for blood pressure measuring, and by covering the loop antenna 31 and the cable 32 for power feeding with an insulating membrane 33, an electric shock of a patient is prevented. And by making a condenser 34 at the power feeding member variable, the frequency band scope is made to fit to the resonance frequency intrinsic to an atomic nucleus to photograph the frequency band scope. When this MRI device is used, the endoscope probe is inserted to the part to measure, and the minute structure of the blood vessel wall or the valve of the heart are photographed in the well known technology in the MRI field, and at the same time, the blood pressure wave form is measured by an electric pressure gauge installed to the terminal opposite to the blood vessel inserting end of the catheter 30.

Hisaaki Ochi
Etsuji Yamamoto
Kageyoshi Katakura
Hideaki Koizumi

JP20491893A

November 26, 2001

August 19, 1993

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株式会社日立製作所
株式会社日立メディコ

A61B1/00; A61B5/0215; A61B5/055; (IPC1-7): A61B5/055; A61B5/0215

JP6343650A
JP3212262A
JP5103763A
JP5508328A
JP3502060A

【文献】国際公開91/12765(WO,A1)

Yasuo Sakuta (1 outside)

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