An imaging element includes: a pixel board including a light receiver including plural pixels, each pixel being configured to generate an imaging signal; a circuit board including a functional circuit, the pixel board being layered on the circuit board; plural wiring portions configured to electrically connect the pixel board and the circuit board to each other and electrically transmit signals between respective layers; a terminal provided on the circuit board, the terminal being electrically connected to each of the plural wiring portions, the terminal being configured to output the imaging signal to an outside of the terminal or receive an external signal from the outside of the terminal; and a switch configured to output, by selective switching, at least one of the imaging signal and an internal signal generated at the circuit board, to the terminal.

An endoscope system sequentially acquires a plurality of endoscopic images by continuously imaging an observation target. A recognition processing unit detects, from the acquired endoscopic images, regions including a lesion portion as regions-of-interest. A recognition result correction unit corrects a position of the region-of-interest of the specific image by using a position of the region-of-interest of a previous image acquired before the specific image and a position of the region-of-interest of a subsequent image acquired after the specific image.

A removable and replaceable sheath may be coupled to a medical instrument used during a procedure, and may enable one or more functional features of the medical instrument while maintaining a sterile barrier between the instrument itself and the treatment site. The sheath may be replaced prior to a subsequent use, and sterilization of the medical instrument is not required due to the sterile barrier. Sheaths may include an embedded memory that stores procedure configurations and procedure results, longitudinal channels for delivering power or irrigation, optical elements for providing procedure specific endoscopic views, and other features. One sheath may be fitted to an endoscope for imaging and tissue ablation. Another sheath includes a balloon usable during sinuplasty procedures. Yet another sheath may be fitted to a sonic ablation instrument to provide improved transmission of sonic power to tissue.

A removable and replaceable sheath may be coupled to a medical instrument used during a procedure, and may enable one or more functional features of the medical instrument while maintaining a sterile barrier between the instrument itself and the treatment site. The sheath may be replaced prior to a subsequent use, and sterilization of the medical instrument is not required due to the sterile barrier. Sheaths may include an embedded memory that stores procedure configurations and procedure results, longitudinal channels for delivering power or irrigation, optical elements for providing procedure specific endoscopic views, and other features. One sheath may be fitted to an endoscope for imaging and tissue ablation. Another sheath includes a balloon usable during sinuplasty procedures. Yet another sheath may be fitted to a sonic ablation instrument to provide improved transmission of sonic power to tissue.

Method for leveraging battery residue energy and a capsule endoscope using the method are disclosed. The capsule endoscope is capable of performing one or more functions at a first throughput or a first peak current when the battery has sufficient energy. According to this method, whether the battery energy is sufficient is determined. Upon determining the battery energy being insufficient, at least one function of the one or more functions is performed at a second throughput lower than the first throughput, or at least one function of the one or more functions is switched to another function requiring a second peak current lower than the first peak current

Method for leveraging battery residue energy and a capsule endoscope using the method are disclosed. The capsule endoscope is capable of performing one or more functions at a first throughput or a first peak current when the battery has sufficient energy. According to this method, whether the battery energy is sufficient is determined. Upon determining the battery energy being insufficient, at least one function of the one or more functions is performed at a second throughput lower than the first throughput, or at least one function of the one or more functions is switched to another function requiring a second peak current lower than the first peak current

The image processing device 1X includes a detection model evaluation means 31X and a display control means 33X. The detection model evaluation means 31X is configured to perform an evaluation on suitability of a detection model for detecting an attention area to be noted based on a captured image Ic in which an inspection target is photographed by a photographing unit provided in an endoscope. The display control means 33X is configured to display candidate area information according to a display mode determined based on a result of the evaluation, the candidate area information indicating one or more candidate areas that are one or more candidates of the attention area, the candidate areas being detected by one or more detection models included in detection model(s) subjected to the evaluation, the candidate area information being superimposed on the captured image Ic which is displayed by a display device 2X.

An imaging device includes a camera unit and a control unit. The camera unit includes an image sensor. The control unit includes a voltage measurement circuit and a voltage adjustment circuit. A first power source voltage is transferred from the control unit to the camera unit by a power source line and is input to the camera unit as a second power source voltage. A video signal or the second power source voltage is output to a video signal line. The voltage measurement circuit is configured to measure a voltage value of the second power source voltage. The voltage adjustment circuit is configured to adjust a value of the first power source voltage based on the value of the second power source voltage.

An imaging device includes a camera unit and a control unit. The camera unit includes an image sensor. The control unit includes a voltage measurement circuit and a voltage adjustment circuit. A first power source voltage is transferred from the control unit to the camera unit by a power source line and is input to the camera unit as a second power source voltage. A video signal or the second power source voltage is output to a video signal line. The voltage measurement circuit is configured to measure a voltage value of the second power source voltage. The voltage adjustment circuit is configured to adjust a value of the first power source voltage based on the value of the second power source voltage.

An imaging device includes a camera unit and a control unit. A first power source voltage is transferred from the control unit to the camera unit by a power source line and is input into the camera unit as a second power source voltage. The camera unit is configured to output a video signal, a reference signal having a reference voltage, and a voltage signal in accordance with the second power source voltage to a video signal line. The control unit is configured to measure a voltage value of each of the reference signal and the voltage signal. The control unit is configured to calculate a control value of the first power source voltage by using the measured voltage value.