초록 ▼

An ultrasonic wave probe comprises an ultrasonic wave transmitting vibrator and a pair of ultrasonic wave receiving vibrators in order to measure blood flow velocity. The receiving vibrators are adapted to receive reflected waves of an ultrasonic wave which is emitted from the transmitting vibrator

An ultrasonic wave probe comprises an ultrasonic wave transmitting vibrator and a pair of ultrasonic wave receiving vibrators in order to measure blood flow velocity. The receiving vibrators are adapted to receive reflected waves of an ultrasonic wave which is emitted from the transmitting vibrator and reflected from a measured point at different receiving angles and the difference between the receiving angles of the receiving vibrators is always kept to a given value. The ultrasonic wave probe further includes an ultrasonic wave transmitting and receiving vibrator for measuring blood vessel diameter deviation at the same time as the measurement of the blood flow velocity.

대표청구항 ▼

An ultrasonic probe for determining characteristics of blood flow in a body vessel comprising a casing having one wall provided with a substantially planar exterior reference face adapted for contact with the body surface adjacent the vessel to be tested, an ultrasonic wave transmitting and a pair o

An ultrasonic probe for determining characteristics of blood flow in a body vessel comprising a casing having one wall provided with a substantially planar exterior reference face adapted for contact with the body surface adjacent the vessel to be tested, an ultrasonic wave transmitting and a pair of ultrasonic wave receiving vibrators fixedly mounted in said one wall in linear alignment with said transmitting vibrator interposed between said pair of receiving vibrators, each of said vibrators being arranged at an angle to the plane of said exterior face so that their respective lines of wave action intersect at a point substantially at the center of blood flow in the vessel being tested, said transmitting receiver being set at an angle of about 60°-65°to the said substantially planar exterior reference face, and therefore to the approximate direction of blood flow and the angle between the respective lines of wave action of each of said receiving vibrators and the said substantially planar exterior reference face and therefore to the approximate direction of blood flow being both acute angles and said lines of action being angularly equi-distract from the line of action of said transmitting vibrator.