Abstract: An arrhythmia type inference device includes: an obtaining section that obtains a target signal waveform indicating a time-series change in the area of a region, which is at least one of a left atrium, a left ventricle, a right atrium, and a right ventricle, the target signal waveform being generated by analyzing an image of a heart of a target subject; and an inference section that infers the type of tachyarrhythmia suffered by the target subject based on the shape of the target signal waveform having a frequency in a frequency band higher than a reference frequency band predetermined as a normal range. This allows the arrhythmia type inference device to accurately infer the type of tachyarrhythmia from the image obtained by image-capturing of the heart.

Abstract: Provided is an arrhythmia type determination device including: an obtaining section that obtains a target signal waveform including at least one of a set of a signal waveform indicating a time-series change in an area of a region of a left atrium and a signal waveform indicating a time-series change in an area of a region of a left ventricle and a set of a signal waveform indicating a time-series change in an area of a region of a right atrium and a signal waveform indicating a time-series change in an area of a region of a right ventricle, which are generated by analyzing an image of a heart of a target subject; and a determination section that determines the type of a premature contraction suffered by the target subject, based on the target signal waveform in a period of interest in which the premature contraction is occurring in the heart of the target subject.

Abstract: To realize a hermetic connector structure with a high product yield at a low cost, which prevents leakage certainly. A hole is formed in a partition in an insulating connector base portion, and a conductive portion is adhered to the surface of the partition and formed as an integrated member covering the hole.

Abstract: To realize a hermetic connector structure with a high product yield at a low cost, which prevents leakage certainly. A hole is formed in a partition in an insulating connector base portion, and a conductive portion is adhered to the surface of the partition and formed as an integrated member covering the hole.

Abstract: A portable radio device antenna apparatus has a retractable antenna element mounted on the casing of a radio device. The antenna element includes a straight element having an electrical length of .lambda./2 and a helical coil having an electrical length of .lambda./4 and attached to the upper end of the straight element. The casing contains an impedance matching circuit having a pair of terminals and serving to perform impedance matching of the straight element. When the straight element is pulled out from the casing, a feeding metal piece connected to a radio circuit and a lower connection metal piece connected to one terminal of the impedance matching circuit are simultaneously connected to the short-circuit metal fixture of the antenna element, and an upper connection metal piece connected to the other terminal of the impedance matching circuit is brought into contact with the straight element.