Asahi Intecc has filed a patent for a measurement apparatus that applies a static magnetic field and multiple AC currents to a measurement target. The apparatus includes a magnetic field detecting element to measure the magnetic field generated by the target, a calculating part to determine the impedance of the target, and an internal information output part to generate information about the target’s internal components. GlobalData’s report on Asahi Intecc gives a 360-degree view of the company including its patenting strategy. Buy the report here.
According to GlobalData’s company profile on Asahi Intecc, Shapeable guide catheters was a key innovation area identified from patents. Asahi Intecc's grant share as of September 2023 was 21%. Grant share is based on the ratio of number of grants to total number of patents.
Measurement apparatus for detecting internal components of a target
A recently filed patent (Publication Number: US20230305084A1) describes a measurement apparatus and method for obtaining information about the internal components of a measurement target. The apparatus includes a static magnetic field applying part that applies a constant magnitude magnetic field in a first direction to the measurement target. Multiple current applying parts apply alternating currents (AC currents) in different directions to a portion of the measurement target via electrodes. A magnetic field detecting element detects the magnitude of the magnetic field generated by nuclear magnetic resonance in response to the static magnetic field and AC currents. A calculating part then determines the impedance of the measurement target based on the detected magnetic field. An internal information output part generates information about the internal components of the measurement target based on the calculated impedance.
In one embodiment, the current applying parts apply AC currents to different portions of the measurement target, and the calculating part calculates the impedance of each portion based on the detected magnetic field. The internal information output part then generates information about the components of each portion by comparing the calculated impedances.
The measurement apparatus can continuously apply AC currents for a predetermined period and calculate the impedance multiple times during that period. The internal information output part generates information about the internal components of the measurement target based on the change in impedance over time.
Multiple magnetic field detecting elements can be provided around the measurement target, and some of the current applying parts can sweep the frequency of the AC currents. The calculating part then calculates the impedance and frequency characteristic of the measurement target based on the detection results of the magnetic field detecting elements. The internal information output part generates information about the internal state of the measurement target based on the calculated frequency characteristic of the impedance.
The measurement apparatus also includes a mounting part and a moving part. The mounting part, which can have a ring shape or partial ring shape, surrounds the measurement target and holds the current applying parts. The moving part moves the mounting part in a predetermined direction while maintaining the direction of the AC currents with respect to the measurement target.
The patent also describes a measurement method that follows a similar process as the apparatus. The method involves applying a static magnetic field and AC currents to the measurement target, detecting the magnetic field generated by nuclear magnetic resonance, calculating the impedance, and generating information about the internal components of the measurement target based on the impedance.
Overall, this patent presents a measurement apparatus and method that can provide valuable information about the internal components of a measurement target using magnetic field detection and impedance calculations.
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