Abstract: A pulse signal corresponding to rotation of an imaging core is input, and a repetition frequency of the input pulse signal is converted in accordance with the number of radially-aligned lines of an ultrasound tomographic image. Based on the pulse signal of which the repetition frequency has been converted, a drive signal for an ultrasound transceiver is generated to obtain an ultrasound tomographic image with the number of lines. A valid pulse is determined in accordance with the number of lines from the pulse signal of which the repetition frequency has been converted. A signal having a pulse train selected, based on the valid pulse from a pulse signal representing a cycle of a light source of light for interfering with the light from an optical transceiver is generated as a pulse signal representing a timing of sampling of an optical coherence signal for generating an optical tomographic image.

Abstract: Provided are an intradermal needle having a protector that is movable from an open position near a needle hub to a closed position where a needle tip is covered, a packaged article, and an injection device. The protector has an arm that is supported in a freely pivotable manner by an axle pin positioned on the base end side of the wide diameter part of the intradermal needle, and a lid supported by the arm. With the axle of pivoting of the protector positioned near the needle hub, the lid may be housed compactly near the needle hub when the protector is in the open position.

Abstract: A cardiac function measuring apparatus, a cardiac function measuring method, and a cardiac function measuring program capable of monitoring cardiac functions are disclosed. The cardiac function measuring apparatus for measuring data for evaluating cardiac functions includes an irradiation unit for irradiating a jugular with light, an imaging unit configured to acquire image data of the jugular, and a vein discriminating part configured to discriminate a shape of the jugular vein in the acquired image data and to calculate a shape complexity level indicating complexity in the shape of the jugular.

Abstract: A prefilled syringe is configured so that, in order that a liquid medicine injected and administered into the upper layer part of skin is prevented from leaking out of the living body, a pressing section can be held in a position reached when it has been completely pressed in. A prefilled syringe 1 is provided with: a double-ended needle 3 having a needlepoint 9 which can be inserted into a living body; a needle hub 4 for holding the double-ended needle 3; an outer tube 2; a pressing section 22; a liquid medicine storage section 6 for storing a liquid medicine M; a holding section 8; and a sealing body 23. The liquid medicine storage section 6 is disposed within a tube hole 2a of the outer tube 2. The pressing section 22 operates the liquid medicine storage section 6 so that the liquid medicine storage section 6 can move in the axial direction of the tube hole 2a of the outer tube 2.