Abstract: A right seat processing unit includes, assuming that a voice of a user in a right front seat is a right front seat voice, a filter HR that converts the right front seat voice being output from a left front seat microphone disposed on a headrest of a left front seat into the right front seat voice collected by a right seat virtual microphone that is a virtual microphone located on a left side of a headrest of the right front seat, a delay unit Z-TR that delays and outputs an output from a right front seat microphone located on a right side of the headrest of the right front seat, a filter WRA that extracts the right front seat voice being output from the filter HR, a filter WRB that extracts the right front seat voice being output from the delay unit Z-TR, and a right adder that adds outputs of the filter WRA and the filter WRB and outputs an added output as a right front seat speech voice signal.

Abstract: A monitoring system for a medical pump having a reversible operating body for compressing/expanding a space for accommodating a fluid, suction/ejection ports communicating via a no-return valve with this space and units for driving the reversible operating means. The system comprises modules for informing abnormalities in the case of a stoppage for predetermined period at a top or bottom dead center of the reversible operating body, or when this body does not traverse predetermined positions, or when the top or bottom dead center exceeds limit positions, or when a centroidal position of the reversible operating body deviates from a set range, and a module for measuring a flow rate of the blood ejected from the artificial heart by calculating an internal volume of the reversible operating body from the images photographed.

Abstract: A pair of spaced electrodes are disposed inside the thoracic aorta near the heart and are used to sense R- and P-waves in an ECG signal. The electrodes are moved to an ideal intra-aortic position, which is that where R- and P-waves are sensed to have the same magnitude, the P-wave, which occurs earlier than the R-wave, serving as means for accurately predicting the occurrence of the R-wave. The electrodes are affixed to the distal end of an intra-aortic balloon, which is capable of being disposed at the ideal position by monitoring of the R- and P-waves sensed by the electrodes. The balloon is deflated at the occurrence of the R-wave, which has been correctly predicted by the earlier P-wave.

Abstract: An observation apparatus for an artificial organ such as an artificial heart includes a first casing having the artificial heart and a video signal generating and transmitting apparatus therein and a second casing independent and remote from the first casing having a video signal receiving and display apparatus therein.

Abstract: An apparatus and method for placing an aortic balloon catheter is provided wherein a pair of spaced electrodes on the distal end of the catheter assembly are disposed inside a thoracic aorta near a patient's heart and are used to sense R-waves and P-waves in an ECG signal. The electrodes are moved to an ideal intra-aortic position where the R-waves and P-waves are sensed to have the same magnitude. The P-wave, occurring earlier than the R-wave, serves to accurately predict theoccurrence of the R-wave. The balloon of the catheter is deflated upon sensing the R-wave.