Patent ID: 11866173
Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Field: Medical technology (Instruments)
Classification: CPC A  B | IPC A  B

Claim 0:
1. A G tolerance improvement device comprising:
an estimator that estimates a body fluid volume in a head of a user and a change amount of the body fluid volume;
a pressurizer adapted to apply pressure to the user based on the body fluid volume and the change amount estimated by the estimator;
a first electrode adapted to make contact with the head of the user; and
a second electrode adapted to make contact with the head or a neck of the user at a location different from the location where the first electrode is adapted to make contact,
wherein the first electrode comprises a first application electrode and a first measurement electrode,
a part of the first measurement electrode is located on a curve, the curve connecting a center point of the first application electrode, which is adapted to make contact with the head, and a center point of the second electrode, which is adapted to make contact with the head or the neck, and being parallel to a surface of the head,
a voltage is applied between the first application electrode and the second electrode,
the estimator estimates the body fluid volume in a cranium of the user and the change amount of the body fluid volume in the cranium per unit time, based on impedance of the head between the first electrode and the second electrode, and
the pressurizer is adapted to apply the pressure to the neck of the user based on the estimated body fluid volume in the cranium and the estimated change amount of the body fluid volume in the cranium per unit time.